Elevator door guide shoe engagement depth measuring device

Abstract

The invention relates to the technical field of depth measuring devices, and discloses an elevator door guide shoe engagement depth measuring device which comprises a displacement mechanism used for extending into a sill groove and not detecting the position of a guide shoe; the measuring mechanism is used for being placed at the top of a sill to ensure that equipment is horizontal and driving the displacement mechanism to stretch into a sill groove for measurement and reading, the displacement mechanism comprises a telescopic column, and the bottom end of the telescopic column is fixedly connected with a laser sensor. A laser sensor is arranged on the guide shoe and used for receiving reflected laser to determine the position of the guide shoe after laser rays are emitted by the guide shoe, a reflecting grating is fixedly connected to the side face of the telescopic column, displacement scales are arranged on the reflecting grating, the measuring mechanism comprises a machine shell, and a storage battery and an information processor are arranged in the machine shell. The invention provides the elevator door guide shoe engagement depth measuring device which can automatically control and measure the engagement depth of the guide shoe, so that the working intensity of operators is effectively reduced, and the accuracy of a measurement result is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of depth measuring devices, and more particularly to a device for measuring the meshing depth of guide shoes of elevator doors. Background Art

[0002] Vertical elevators are widely used in multi-story buildings to carry people or goods. During the construction of vertical elevators, floor doors are installed on each floor. When the vertical elevators are running, the floor doors are damaged by human impact and the door leaves fall off, causing external personnel to fall into the shaft and cause casualties. Accidents have occurred repeatedly, triggering widespread public concern about elevator safety. After analysis, it is found that the main reason for the falling of elevator floor doors is that the strength of some elevator floor doors is insufficient, and the engagement depth between the floor door guide shoe and the sill groove is shallow during installation. When the floor door is deformed by external impact, the floor door guide shoe is disengaged. Therefore, when installing the floor door, a measuring device is required to measure the engagement depth of the elevator door guide shoe and the sill groove. As the guide shoe and the sill groove wear out during use, a measuring device is required to regularly measure the gap between the two to avoid excessive gaps and ensure the safety of the floor door.

[0003] Deficiencies of existing technology: To ensure safety during the installation of elevator floor doors, the width of the sill groove is narrow, and when measuring the engagement depth of the guide shoe, the guide shoe is inside the sill groove, so the operating space is limited. In addition, the sill groove is on the ground, and the operator needs to squat on the ground to operate during the measurement process, which is time-consuming and laborious. Summary of the invention

[0004] In order to overcome the above defects of the prior art, the present invention provides an elevator door guide shoe engagement depth measuring device to solve the problems existing in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an elevator door guide shoe engagement depth measuring device, comprising a displacement mechanism, which is used to extend into the sill groove to detect the guide shoe position; a measuring mechanism is used to be placed on the top of the sill to ensure that the equipment is level and to ensure and drive the displacement mechanism to extend into the sill groove to take measurement readings, the displacement mechanism comprises a telescopic column, the bottom end of the telescopic column is fixedly connected to a laser sensor, and the laser sensor is used to send a laser ray to the guide shoe and then receive the reflected laser to determine the guide shoe position, the side of the telescopic column is fixedly connected to a reflection grating, and the reflection grating is provided with a displacement scale, the measuring mechanism comprises a casing, a battery and an information processor are provided inside the casing, and a through slot is provided on the top of the casing, The side of the through slot is fixedly connected with a capacitive grating sensor at a position corresponding to the reflection grating, and the side of the through slot is fixedly connected with a capacitive grating sensor at a position corresponding to the reflection grating, and the capacitive grating sensor is used to measure the linear displacement of the reflection grating and send the signal to the information processor, a movable slot is opened on the side of the through slot, a gear bar is fixedly connected to the side of the telescopic column, a mounting shaft is movably sleeved inside the housing, a transmission gear is fixedly sleeved on the side of the mounting shaft, and the side of the transmission gear is meshed with the side of the gear bar, a servo motor is fixedly connected inside the housing, a worm is fixedly connected to the output shaft of the servo motor, a worm wheel is fixedly sleeved on the side of the mounting shaft, and the side of the worm is meshed with the side of the worm wheel.

[0006] Furthermore, a control keyboard is fixedly connected to the top of the casing, and a display screen is fixedly connected to the top of the casing.

[0007] Furthermore, a connecting wire is fixedly connected to the side of the laser sensor, and the connecting wire is used to connect the laser sensor, the battery and the information processor. A cable reel is fixedly connected to the side of the mounting shaft, and the cable reel is used to wind the connecting wire. A placement groove is provided on the side of the telescopic column corresponding to the position of the connecting wire.

[0008] Furthermore, a first through hole is formed at the top of the cable reel, a second through hole is formed at the side of the cable reel, and the connecting wire passes through the second through hole and the first through hole and is wound around the cable reel.

[0009] Furthermore, a slide groove is provided on the side of the through groove, a slider is fixedly connected to the side of the telescopic column, and a side of the slider is movably connected to a side of the slide groove.

[0010] Furthermore, the top end of the telescopic column is fixedly connected to a limit plate, the bottom end of the telescopic column is fixedly connected to a sealing plate, and a sealing groove is provided at the bottom end of the housing at a position corresponding to the sealing plate.

[0011] Furthermore, a pressure sensor is fixedly connected to the bottom end of the telescopic column, and the pressure sensor is used to test whether the bottom end of the sealing plate is in contact with the bottom of the sill groove.

[0012] Furthermore, an indicator light is fixedly connected to the top of the casing, a mounting groove is opened at the bottom of the casing, a mounting hole is opened at the top of the mounting groove, a return spring is fixedly connected to the top of the mounting hole, a pressure block is fixedly connected to the bottom of the connecting line, and a touch switch is fixedly connected to the top of the mounting groove.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention controls the servo motor to start and drive the worm to rotate through the control keyboard, drives the installation shaft to rotate through the mutual meshing of the worm wheel and the worm, drives the telescopic column to move up and down through the mutual meshing of the transmission gear and the gear bar, so that the telescopic column extends into the inside of the sill groove, and the laser sensor emits a laser to the guide shoe and receives the laser signal reflected by the guide shoe to determine the position of the guide shoe until the laser sensor cannot detect the guide shoe. The laser sensor sends a signal to the information processor and controls the servo motor to stop. When the telescopic column moves up and down along the through groove, the capacitive grating sensor reads the reflection grating to determine the displacement distance of the telescopic column, and displays the detection result, which is the meshing depth of the guide shoe, through the display screen. The meshing depth of the guide shoe is automatically measured, which is beneficial to ensure the accuracy of the measurement structure and reduce the work intensity.

[0015] 2. The present invention locates the laser sensor in the middle of the side of the telescopic column near the bottom, and installs components such as a battery and an information processor inside the casing. Only the laser sensor and the pressure sensor are installed on the laser sensor, thereby reducing the width of the telescopic column and facilitating the insertion of the laser sensor into the sill groove. The laser sensor is connected to the components in the casing through a connecting wire. When the telescopic column moves up and down during use, the cable reel rotates to retract and release the connecting wire, which helps to ensure normal use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall top structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the bottom structure of the measuring mechanism of the present invention;

[0019] Figure 4 It is a schematic diagram of the structure of the transmission gear of the present invention;

[0020] Figure 5 It is a schematic diagram of the cable reel structure of the present invention;

[0021] Figure 6It is a schematic diagram of the bottom structure of the displacement mechanism of the present invention;

[0022] Figure 7 It is a schematic diagram of the cross-sectional structure of the pressing block of the present invention.

[0023] The accompanying drawings are marked as follows: 1. displacement mechanism; 101. telescopic column; 102. laser sensor; 103. reflection grating; 104. limit plate; 105. slider; 106. sealing plate; 107. placement groove; 108. gear bar; 109. pressure sensor; 2. measuring mechanism; 201. casing; 202. pressure block; 203. mounting groove; 204. control keyboard; 205. capacitive grating sensor; 206. slide groove; 207. display screen; 208. indicator light; 209. through groove; 210. sealing groove; 211. connecting line; 212. movable groove; 213. transmission gear; 214. servo motor; 215. worm; 216. mounting hole; 217. worm wheel; 218. mounting shaft; 219. first through hole; 220. touch switch; 221. reset spring; 222. cable reel. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The elevator door guide shoe engagement depth measuring device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0025] Reference Figures 1 to 7The present invention provides an elevator door guide shoe engagement depth measuring device, comprising a displacement mechanism 1, which is used to extend into a sill groove without detecting the guide shoe position; a measuring mechanism 2 is used to be placed on the top of the sill to ensure that the device is level and to ensure and drive the displacement mechanism 1 to extend into the sill groove to perform measurement readings, the displacement mechanism 1 comprises a telescopic column 101, a laser sensor 102 is fixedly connected to the bottom end of the telescopic column 101, and the laser sensor 102 is used to receive reflected laser light after emitting laser rays to the guide shoe to determine the guide shoe position, a reflection grating 103 is fixedly connected to the side of the telescopic column 101, and a displacement scale is provided on the reflection grating 103, and the measuring mechanism 2 comprises a housing 201, and a storage battery and a signal are provided inside the housing 201. The information processor is provided with a through slot 209 at the top of the housing 201, and a capacitive grating sensor 205 is fixedly connected to the side of the through slot 209 corresponding to the position of the reflection grating 103, and the capacitive grating sensor 205 is fixedly connected to the side of the through slot 209 corresponding to the position of the reflection grating 103, and the capacitive grating sensor 205 is used to measure the linear displacement of the reflection grating 103 and send the signal to the information processor, and a movable slot 212 is provided on the side of the through slot 209, and a gear bar 108 is fixedly connected to the side of the telescopic column 101, and a mounting shaft 218 is movably sleeved inside the housing 201, and a transmission gear 213 is fixedly sleeved on the side of the mounting shaft 218, and the side of the transmission gear 213 is aligned with the side of the gear bar 108. The servo motor 214 is fixedly connected to the inside of the housing 201, and the output shaft of the servo motor 214 is fixedly connected to the worm 215. The side of the mounting shaft 218 is fixedly sleeved with a worm wheel 217. The side of the worm 215 and the side of the worm wheel 217 are meshed with each other. The bottom of the housing 201 remains flat, and the housing 201 is placed on the top of the sill groove along the sill groove, so that the telescopic column 101 is aligned with the sill groove, and the laser sensor 102 is aligned with the guide shoe direction. The servo motor 214 is started to drive the worm 215 to rotate, and the mounting shaft 218 is driven to rotate through the meshing of the worm wheel 217 and the worm 215, and the telescopic column 101 is driven to rotate through the meshing of the transmission gear 213 and the gear bar 108. The telescopic column 101 moves downward to extend into the interior of the sill groove, wherein the laser sensor 102 uses the ECS series ultra-small laser sensor, the laser sensor 102 emits a laser to the guide shoe and receives the laser signal reflected by the guide shoe to determine the position of the guide shoe, until the laser sensor 102 can no longer detect the guide shoe, the laser sensor 102 sends a signal to the information processor and controls the servo motor 214 to stop, when the telescopic column 101 moves up and down along the through groove 209, the capacitive grating sensor 205 reads the reflection grating 103, wherein the capacitive grating sensor 205 uses the model of Huachang UPM-50, determines the displacement distance of the telescopic column 101, and displays the detection result through the display screen 207, which is the engagement depth of the guide shoe.

[0026] A control keyboard 204 is fixedly connected to the top of the housing 201 , and a display screen 207 is fixedly connected to the top of the housing 201 .

[0027] Among them, a connecting wire 211 is fixedly connected to the side of the laser sensor 102, and the connecting wire 211 is used to connect the laser sensor 102, the battery and the information processor. A winding drum 222 is fixedly connected to the side of the installation shaft 218, and the winding drum 222 is used to wind the connecting wire 211. A placement groove 107 is opened on the side of the telescopic column 101 corresponding to the position of the connecting wire 211. The laser sensor 102 is located in the middle of the side of the telescopic column 101 near the bottom, and components such as the battery and the information processor are installed inside the casing 201. Only the laser sensor 102 and the pressure sensor 109 are installed on the laser sensor 102, reducing the width of the telescopic column 101 to facilitate the insertion of the laser sensor 102 into the sill groove. The laser sensor 102 is connected to the components in the casing 201 through the connecting wire 211. When the telescopic column 101 moves up and down during use, the winding drum 222 rotates to retract and release the connecting wire 211.

[0028] A first through hole 219 is formed at the top of the cable reel 222 , and a second through hole is formed at the side of the cable reel 222 . The connecting wire 211 passes through the second through hole and the first through hole 219 and is wound around the cable reel 222 .

[0029] Among them, a slide groove 206 is opened on the side of the through groove 209, and a slider 105 is fixedly connected to the side of the telescopic column 101. The side of the slider 105 is movably connected to the side of the slide groove 206. When the telescopic column 101 moves up and down, the slider 105 slides along the slide groove 206 to limit the telescopic column 101, ensuring that the telescopic column 101 moves in a direction perpendicular to the bottom of the housing 201.

[0030] Among them, the top end of the telescopic column 101 is fixedly connected to the limit plate 104, the bottom end of the telescopic column 101 is fixedly connected to the sealing plate 106, and a sealing groove 210 is opened at the bottom end of the casing 201 corresponding to the position of the sealing plate 106. The limit plate 104 and the sealing plate 106 cooperate to limit the telescopic column 101 to prevent the telescopic column 101 from falling from the through groove 209.

[0031] The bottom end of the telescopic column 101 is fixedly connected with a pressure sensor 109 , and the pressure sensor 109 is used to test whether the bottom end of the sealing plate 106 is in contact with the bottom of the sill groove to prevent the telescopic column 101 from being damaged.

[0032] Among them, an indicator light 208 is fixedly connected to the top of the casing 201, a mounting groove 203 is opened at the bottom of the casing 201, a mounting hole 216 is opened at the top of the mounting groove 203, a return spring 221 is fixedly connected to the top of the mounting hole 216, a pressing block 202 is fixedly connected to the bottom of the connecting line 211, and a touch switch 220 is fixedly connected to the top of the mounting groove 203. When the casing 201 is placed on the top of the sill groove, the pressing blocks 202 on both sides of the bottom of the casing 201 contact with the top of the sill groove, so that the pressing blocks 202 are received in the mounting groove 203 until the pressing blocks 202 are completely received in the mounting groove 203, and the top of the pressing blocks 202 contacts the touch switch 220, and the touch switch 220 controls the indicator light 208 to emit green light, indicating that the bottom of the casing 201 is flush with the top of the sill groove.

[0033] The working principle of the present invention is as follows: the housing 201 is placed on the top of the sill groove along the sill groove, the telescopic column 101 is aligned with the sill groove, and the laser sensor 102 is ensured to be aligned with the guide shoe direction. The pressing blocks 202 on both sides of the bottom of the housing 201 are in contact with the top of the sill groove, so that the pressing blocks 202 are received into the installation groove 203, until the pressing blocks 202 on both sides are completely received into the installation groove 203, the top of the pressing block 202 is in contact with the touch switch 220, and the touch switch 220 controls the indicator light 208 to emit green light, indicating that the bottom of the housing 201 is flush with the top of the sill groove. The operator controls the servo motor 214 through the control keyboard 204 to start and drive the worm 215 to rotate, and the worm wheel 217 is meshed with the worm 215 to drive the installation shaft 218 to rotate, and the transmission gear 213 and the gear bar 108 are connected. The mutual engagement drives the telescopic column 101 to move up and down, and at the same time, the winding drum 222 rotates with the installation shaft 218 to retract and release the connecting wire 211, so that the laser sensor 102 is connected to the components in the casing 201 through the connecting wire 211, so that the telescopic column 101 extends into the inside of the sill groove, and the laser sensor 102 emits a laser to the guide shoe and receives the laser signal reflected by the guide shoe to determine the position of the guide shoe until the laser sensor 102 can no longer detect the guide shoe. The laser sensor 102 sends a signal to the information processor and controls the servo motor 214 to stop. When the telescopic column 101 moves up and down along the through groove 209, the capacitive grating sensor 205 reads the reflective grating 103 to determine the displacement distance of the telescopic column 101, and displays the detection result on the display screen 207, which is the engagement depth of the guide shoe.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An elevator door guide shoe engagement depth measuring device, characterized in that: The invention comprises a displacement mechanism (1) for extending into a sill groove to detect the position of a guide shoe; a measuring mechanism (2) for being placed on the top of the sill to ensure that the device is level and to ensure and drive the displacement mechanism (1) to extend into the sill groove to perform measurement readings; the displacement mechanism (1) comprises a telescopic column (101); a laser sensor (102) is fixedly connected to the bottom end of the telescopic column (101); the laser sensor (102) is used to determine the position of the guide shoe by receiving reflected laser light after emitting laser rays to the guide shoe; a reflection grating (103) is fixedly connected to the side of the telescopic column (101); and a displacement scale is provided on the reflection grating (103); the measuring mechanism (2) comprises a housing (201); a storage battery and an information processor are provided inside the housing (201); a through slot (209) is provided at the top end of the housing (201); a grating sensor (205) is fixedly connected to the side of the through slot (209) corresponding to the position of the reflection grating (103); and the through slot (20 A capacitive grating sensor (205) is fixedly connected to the side of the through slot (209) corresponding to the position of the reflection grating (103), and the capacitive grating sensor (205) is used to measure the linear displacement of the reflection grating (103) and send the signal to the information processor. A movable slot (212) is provided on the side of the through slot (209). A gear bar (108) is fixedly connected to the side of the telescopic column (101). A mounting shaft (218) is movably sleeved inside the housing (201). The mounting shaft (218) A transmission gear (213) is fixedly sleeved on the side of the mounting shaft (218), and the side of the transmission gear (213) meshes with the side of the gear bar (108); a servo motor (214) is fixedly connected to the inside of the housing (201), and the output shaft of the servo motor (214) is fixedly connected to a worm gear (215); a worm wheel (217) is fixedly sleeved on the side of the mounting shaft (218), and the side of the worm gear (215) meshes with the side of the worm wheel (217).

2. The device for measuring the engagement depth of an elevator door guide shoe according to claim 1, characterized in that: A control keyboard (204) is fixedly connected to the top of the housing (201), and a display screen (207) is fixedly connected to the top of the housing (201).

3. The device for measuring the engagement depth of an elevator door guide shoe according to claim 1, characterized in that: A cable reel (222) is fixedly connected to the side of the installation shaft (218), and the cable reel (222) is used to wind the connecting wire (211). A placement groove (107) is provided on the side of the telescopic column (101) corresponding to the position of the connecting wire (211).

4. The device for measuring the engagement depth of an elevator door guide shoe according to claim 3, characterized in that: A first through hole (219) is provided at the top of the cable reel (222), a second through hole is provided at the side of the cable reel (222), and the connecting wire (211) passes through the second through hole and the first through hole (219) and is wound around the cable reel (222).

5. The device for measuring the engagement depth of an elevator door guide shoe according to claim 1, characterized in that: A sliding groove (206) is provided on the side of the through groove (209), a sliding block (105) is fixedly connected to the side of the telescopic column (101), and a side of the sliding block (105) is movably connected to a side of the sliding groove (206).

6. The device for measuring the engagement depth of an elevator door guide shoe according to claim 1, characterized in that: The top end of the telescopic column (101) is fixedly connected to a limit plate (104), the bottom end of the telescopic column (101) is fixedly connected to a sealing plate (106), and a sealing groove (210) is provided at the bottom end of the housing (201) at a position corresponding to the sealing plate (106).

7. The device for measuring the engagement depth of an elevator door guide shoe according to claim 1, characterized in that: The bottom end of the telescopic column (101) is fixedly connected to a pressure sensor (109), and the pressure sensor (109) is used to test whether the bottom end of the sealing plate (106) is in contact with the bottom of the sill groove.

8. The device for measuring the engagement depth of an elevator door guide shoe according to claim 3, characterized in that: The top end of the housing (201) is fixedly connected to an indicator light (208); the bottom end of the housing (201) is provided with a mounting groove (203); the top end of the mounting groove (203) is provided with a mounting hole (216); the top end of the mounting hole (216) is fixedly connected to a return spring (221); the bottom end of the connecting wire (211) is fixedly connected to a pressure block (202); and the top end of the mounting groove (203) is fixedly connected to a touch switch (220).

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