Track perpendicularity monitoring device of home elevator

Abstract

The utility model relates to a track perpendicularity monitoring device of a home elevator. The track perpendicularity monitoring device comprises a base frame, a transmission unit and a sensing unit. And a section block is arranged on the base frame. The transmission unit comprises a transmission rod, end heads and end column bodies fixed to the two ends of the transmission rod, and a spring arranged on the transmission rod in a sleeving mode. And the transmission rod can move relative to the section block after being matched with the section block. One end of the spring is matched with the end, and the other end of the spring is matched with the section block and can exert elastic force on the transmission rod. A through-hole portion is formed at the free end of the end post. The sensing unit comprises a sensor body and an elastic body provided with a sensitive part. And the sensitive part is connected with the sensor body and can generate physical quantity change along with the elastic deformation of the elastic body. The elastic body penetrates through the through hole part, and the upper end and the lower end are fixed to the base frame. When the transmission rod moves, the elastic body can be promoted to generate elastic deformation. According to the system, the perpendicularity state of the home elevator can be monitored in real time, the frequency that workers enter a shaft to detect the perpendicularity of the rail is reduced, and the operation intensity is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic elevator technical field, and specifically design domestic elevator's track perpendicularity monitoring devices. BACKGROUND

[0002] The perpendicularity of elevator track is one of the key indexes to ensure the safety and stable operation of elevator, if the track perpendicularity is not up to standard, it can cause the vibration and noise increase of elevator operation, and even cause safety accidents. According to the relevant requirements, the allowable vertical deviation of elevator main track is: the vertical deviation of every 5 meters guide rail is controlled within 1mm, and the preferred state is controlled within 0.6mm.

[0003] The track perpendicularity detection of the domestic elevator in the past mainly relies on artificial periodic measurement, and during the period, a plurality of detection points (such as a detection point can be set every 2-3 meters interval) are selected uniformly along the height direction of the track, and are well marked. Then, a laser plumb instrument is used for measurement. The main operation steps of using the laser plumb instrument are: 1) installation instrument, fix the laser plumb instrument on the reference point of the shaft top (such as the vertical mark of the machine room floor can be selected), adjust the instrument to the horizontal state; 2) emit laser beam: turn on the laser plumb instrument, make the laser beam vertically project on the receiving target at the bottom of the shaft, form the reference vertical line; 3) measure deviation: at each detection point, measure the horizontal distance between the track side and the laser beam with a steel ruler, record the deviation value; 4) data processing: calculate the maximum and minimum values of each point deviation, perpendicularity error = (maximum deviation-minimum deviation) / track length, generally required ≤1 / 1000. For example, if the track is 30 meters long, the allowable deviation difference is within 30mm. It can be seen that the existing detection means needs workers to work in the shaft for a long time, not only the labor intensity is large, the work efficiency is low, and the vertical state change of the domestic elevator track cannot be monitored in real time, and the early warning support is provided. UTILITY MODEL CONTENTS

[0004] The track perpendicularity monitoring device of the domestic elevator can monitor the perpendicularity state of the domestic elevator in real time, which helps to reduce the frequency of workers entering the shaft to detect the track perpendicularity and reduce the working intensity of workers.

[0005] The utility model solves the technical scheme adopted for its technical problems: the track perpendicularity monitoring device of the domestic elevator, including the base frame, a plurality of transmission units, and a plurality of sensing units corresponding to each transmission unit.

[0006] The base frame is fixed on the shaft wall of the elevator shaft and arranged to extend in the vertical direction. Meanwhile, a plurality of blocks for fixing the respective drive units are arranged on the base frame and distributed in the vertical direction. After the drive units are assembled on the base frame, the respective drive units are arranged in the vertical direction.

[0007] The drive unit comprises a drive rod extending in the transverse direction, an end head fixed on one end of the drive rod, a spring sleeved on the drive rod, and an end column fixed on the other end of the drive rod. The middle part of the drive rod is matched with the block, so that the drive rod can move reciprocally relative to the block in the transverse direction. One end of the spring is matched with the end head, and the other end is matched with the block, so that the spring can exert an elastic force in the transverse direction on the drive rod. When the drive rod moves relative to the block in the transverse direction, the extension state of the spring changes. A through hole part is formed on the free end of the end column.

[0008] The sensing unit comprises a sensor body and an elastic body with a sensitive part fixed thereon. The sensitive part is connected with the sensor body, and the sensitive part can change in physical quantity when the elastic body deforms elastically, so as to make the sensor body send a sensing signal. The elastic body is arranged in the vertical direction and passes through the through hole part, and the upper and lower ends of the elastic body are fixed on the base frame, so that the elastic body deforms elastically when the drive rod moves in the transverse direction. Meanwhile, a processor connected with each sensing unit is further included. The processor can process the sensing signals sent by each sensor body in real time. The processor processes the real-time sensing signals of each sensing unit, and after comprehensively analyzing the processing results, the verticality state of the elevator track in the vertical direction can be determined.

[0009] Optionally, the free end of the end head is formed with a plate part, and the free end face of the plate part is formed as an outward convex arc face.

[0010] Optionally, a cavity is formed on the block, and a partition plate is formed in the cavity. The middle part of the drive rod is matched with the smooth through hole formed on the partition plate, so that the drive rod can move relative to the block.

[0011] Optionally, an annular flange is formed on the side end face of the block close to the end head. A screw cylinder is arranged on the annular flange, and the annular flange and the screw cylinder are matched through a threaded structure, so that the position of the screw cylinder in the transverse direction can be adjusted. A recess is formed on the end face of the screw cylinder away from the annular flange. The end of the spring facing the block extends into the groove.

[0012] Optionally, a smooth through hole corresponding to the drive rod is formed on the screw cylinder. The middle part of the drive rod can be in a smooth surface contact matching state with the smooth through hole arranged on the screw cylinder and the smooth through hole arranged on the partition plate.

[0013] Optionally, an axle hole is formed on the end column body, so that the end column body is matched with the transmission rod by insertion. A screw sleeve is arranged on the transmission rod. By screwing the screw sleeve, the end column body can be switched between a state of fixed connection with the transmission rod and a state of relative movement.

[0014] Optionally, a plurality of arm plates are formed on the end column body at one end of the type block and are distributed around the circumference, and the outer wall surfaces of the arm plates are distributed on the same conical surface. An external thread surface is formed on the outer circumferential surface of the end column body and near the position close to the root of the arm plate. A threaded hole is formed on the screw sleeve and is matched with the external thread surface. A tapered hole is formed on the inner bottom surface of the threaded hole and is close to the inner bottom surface of the threaded hole. The tapered hole can simultaneously contact the outer wall surfaces of the arm plates, so that the inner wall surfaces of the arm plates are pressed on the outer circumferential surface of the transmission rod, and the screw sleeve fixes the end column body on the transmission rod.

[0015] Optionally, an elastic layer is fixedly arranged on the inner wall surface of the arm plate. When the arm plate is pressed on the outer circumferential surface of the transmission rod, the elastic layer is elastically deformed and is only clamped between the opposite surfaces of the arm plate and the transmission rod, so as to increase the activity friction resistance and the radial compression / holding force.

[0016] The utility model discloses a verticality state of domestic elevator can be monitored in real time, help to reduce the frequency of worker's entering the shaft and detecting the verticality of track, reduce the operation intensity of worker, and can provide early warning support, help to find the sudden failure during the artificial detection empty window period in time, can better guarantee the operation safety of domestic elevator. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is configuration state structural diagram of the utility model and elevator track.

[0018] Fig. 2 It is cross section structure schematic diagram of transmission unit.

[0019] Fig. 3 It is cross section structure schematic diagram of end column body.

[0020] In the drawing: 100 elevator track, 101 wing plate, 1011 side, 102 web plate;10 base frame, 11 type block, 111 partition, 112 annular flange, 113 type cavity;20 transmission unit, 21 end, 211 plate part, 212 arc surface, 22 transmission rod, 221 first light column surface, 222 second light column surface, 23 spring, 24 screw cylinder, 241 threaded hole one, 242 sink groove, 25 end column body, 251 arm plate, 2511 elastic layer, 252 external thread surface, 253 horizontal plate, 2531 through hole part, 26 screw sleeve, 261 tapered hole, 262 threaded hole two;30 sensing unit, 31 elastic body;40 clamping terminal. DETAILED DESCRIPTION

[0021] The structures, proportions, and sizes shown in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art. They are not intended to limit the scope of this invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, provided they do not affect the effectiveness or purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, terms such as "upper," "lower," "front," "rear," and "middle" used in this specification are merely for clarity and not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0022] like Figs. 1-3 The illustrated device for monitoring the verticality of a home elevator track includes a base frame 10, multiple transmission units 20, and multiple sensing units 30 corresponding to and matched with each transmission unit 20. The base frame 10 is fixed to the wall of the elevator shaft. Multiple blocks 11 for fixing and installing the transmission units 20 are formed on the base frame 10. The blocks 11 are arranged alternately in the vertical direction (vertical direction in the illustration). After the transmission units 20 are matched with the blocks 11, the transmission units 20 are arranged alternately in the vertical direction. The sensing units 30 are respectively fixed to the base frame 10 and located on the side opposite to the elevator track 100 (right side in the illustration).

[0023] like Fig. 1 As shown, the base frame 10, arranged vertically, extends parallel to the elevator track 100 and has a vertical distance from the side 1011 of the wing plate 101 of the elevator track 100. The web plate 102 of the elevator track 100 extends in a direction perpendicular to the drawing relative to the wing plate 101.

[0024] like Figs. 1-3 As shown, the transmission unit 20 includes a transmission rod 22 with its axis arranged in the transverse direction (left-right direction in the figure), an end cap 21 fixed to one end (left end) of the transmission rod 22, a spring 23 sleeved on the transmission rod 22, and an end post 25 fixed to the other end (right end) of the transmission rod 22. The middle part of the transmission rod 22 matches the molded block 11, allowing the transmission rod 22 to reciprocate relative to (corresponding to and matched with) the molded block 11 in the transverse direction. The left end of the spring 23 is sleeved on the right side of the end cap 21, and the right end matches the molded block 11 (directly or indirectly), allowing the spring 23 to apply an elastic force along the transverse / left-right direction on the transmission rod 22. A through hole 2531 is formed at the free end / right end of the end post 25.

[0025] The sensing unit 30 comprises a sensor body and an elastic body 31 fixed with a sensitive part. The sensitive part is electrically connected with the sensor body. The sensitive part can change physical quantity with elastic deformation of the elastic body 31, and can cause the sensor body (connected therewith) to send real-time sensing signals.

[0026] The elastic body 31 is arranged along the vertical direction and passes through the through hole part 2531. When the upper and lower ends of the elastic body 31 are fixed on the base frame 10 respectively, and the transmission rod 22 moves along the left-right direction relative to the block 11, the elastic body 31 can be elastically deformed and stretched, so that the sensitive part fixed on the elastic body 31 changes the physical quantity.

[0027] A processor is arranged corresponding to the sensing unit 20. The processor is connected with each sensing unit 20 respectively, and can process the sensing signals sent by each sensor body in real time. The processor processes the real-time sensing signals of each sensing unit 20, and comprehensively analyzes the processing results, so as to determine the perpendicularity state of the elevator track in the vertical direction. In detail, after assembly is completed, the free end face (i.e. the curved surface 212 shown in the figure) of the end head 21 is in contact with the side surface 1011 of the wing plate 101 of the elevator track 100 respectively; the elastic force of the spring 23 acting on the transmission rod 22 can cause the transmission rod 22 to move in the left-right direction / transverse direction, which can cause the end head 21 to always keep in contact with the side surface 1011, and can also cause the end column body 25 to move synchronously, so that the end column body 25 pulls the elastic body 31 to elastically deform; if the elevator track 100 is inclined to the left side, the amount of left movement of the transmission rod 22 in the sensing unit 30 located above is greater than that of the sensing unit 30 located below, and the degrees of elastic deformation of the elastic bodies 31 in the two sensing units 30 are different (the degrees of deformation of the elastic bodies 31 are adjusted to be consistent in the initial state, i.e. the end column body 25 is adjusted to be in a state of not stretching / pulling the corresponding elastic body 31), so that the degrees of change of the sensing signals of the two sensing units 20 are obviously different from the initial state, and the perpendicularity state of the elevator track 100 can be determined by analyzing the change amplitudes of the sensing signals of different sensing units 20.

[0028] The right end of the end head 21 is connected with the left end of the transmission rod 22 by a threaded structure, forming a detachable assembly relationship. The left end / free end of the end head 21 is formed with a plate portion 211, and the free end face / left end face of the plate portion 211 is formed into an arc face 212 protruding outwardly / leftward. The thickness of the plate portion 211 is smaller than the thickness of the wing plate 101, and the arc face 212 can be tangentially contacted with the side face 1011. The left end of the spring 23 is matched with the right end of the end head 21, so that the left end of the spring 23 can be matched with the right end face of the end head 21.

[0029] A cavity 113 is formed on the mold block 11, and a partition plate 111 is formed in the cavity 113. The middle part of the transmission rod 22 is matched with a smooth hole formed on the partition plate 111, so that the transmission rod 22 can move along the left-right direction relative to the mold block 11. An annular flange 112 is formed on the side end face of the mold block 11 close to the end head 21 (i.e. on the left end face of the mold block 11). The annular flange 112 extends axially along the transverse direction and leftward relative to the mold block 11. A threaded surface is formed on the outer peripheral surface of the annular flange 112, and a screw cylinder 24 is arranged. The threaded hole 241 on the screw cylinder 24 is matched with the threaded surface on the annular flange 112, so that the annular flange 112 is matched with the screw cylinder 24 in a threaded structure, and the position of the screw cylinder 24 in the transverse direction / left-right direction can be adjusted. A groove 242 (which can be a cylindrical hole) is formed on the end face of the screw cylinder 24 away from the annular flange 112. One end of the spring 23 extending toward the mold block 11 is inserted into the groove 242, so that it is not easy to slip off, which helps to ensure that the spring 23 stably and reliably exerts an elastic force along the left-right direction on the transmission rod 22. By rotating the screw cylinder 24, the initial extension state of the spring 23 can be adjusted, and the elastic force in the initial state can be set within a reasonable range.

[0030] The transmission rod 22 is formed with a first smooth cylindrical surface 221 and a second smooth cylindrical surface 222, and the outer diameter of the first smooth cylindrical surface 221 is larger than that of the second smooth cylindrical surface 222. The first smooth cylindrical surface 221 is arranged close to one side of the end head 21, and the second smooth cylindrical surface 222 is arranged close to one side of the end cylinder 25.

[0031] A smooth hole is formed on the screw cylinder 24 corresponding to the transmission rod 22. The first smooth cylindrical surface 221 on the transmission rod 22 can be kept in a matched state with the smooth hole arranged on the screw cylinder 24, and at the same time, the first smooth cylindrical surface 221 on the transmission rod 22 can also be kept in a matched state with the smooth hole arranged on the partition plate 111, and through the matching with the two smooth holes, the axial center line of the transmission rod 22 can be kept in a stable transverse / left-right extending state.

[0032] The end column body 25 is formed with an axle hole (which can be a counterbore or a through hole) to enable the end column body 25 to be inserted and matched with the transmission rod 22. A threaded sleeve 26 is provided on the transmission rod 22. By screwing the threaded sleeve 26, the end column body 25 can be selectively switched between a state of being fixedly connected with the transmission rod 22 and a state of being able to move relative to the transmission rod 22. The axle hole provided on the end column body 25 is a cylindrical hole and is matched with the second light column surface 222 (which is a cylindrical surface). Such a design facilitates control of the axial line direction of the through hole portion 2531 during assembly. Two arm plates opposite to each other are formed on the right end of the end column body 25, and a horizontal plate 253 is formed between the two arm plates. The through hole portion 2531 is formed on the horizontal plate 253. The horizontal plate 253 is in a horizontal plane, i.e., it can ensure that the axial line of the through hole portion 2531 is in the vertical direction.

[0033] An end (left end) of the end column body 25 facing the mold block 11 is formed with a plurality of arm plates 251 distributed around the circumference, and the outer wall surfaces of the arm plates 251 are distributed on the same conical surface, with the large-diameter end of the conical surface being at the root and the small-diameter end being the free end. An external thread surface 252 is formed on the outer circumferential surface of the end column body 25 near the position close to the root of the arm plate 251.

[0034] The threaded sleeve 26 is formed with a threaded counterbore 262 corresponding to the external thread surface 252, so that the threaded sleeve 26 can be screwed onto and unscrewed from the end column body 25. A tapered hole 261 is formed on the inner bottom surface of the threaded counterbore 262, with the large-diameter end of the tapered hole 261 being close to the inner bottom surface of the threaded counterbore 262.

[0035] During the process of gradually screwing the threaded counterbore 262 on the threaded sleeve 26 onto the external thread surface 252, the tapered hole 261 can gradually come into full contact with the outer wall surfaces of the arm plates 251, so as to gradually press the inner wall surfaces of the arm plates 251 against the outer circumferential surface of the transmission rod 22 (specifically, against the second light column surface 222), and enable the threaded sleeve 26 to fix the end column body 25 on the transmission rod 22. Preferably, an elastic layer 2511 is fixedly provided on the inner wall surface of the arm plate 251. When the arm plate 251 is gradually pressed against the outer circumferential surface of the transmission rod 22, the elastic layer 2511 can be caused to elastically deform, so as to increase the active frictional resistance and the radial pressing / holding force, and thus increase the stability and reliability of the fixation of the end column body 25 on the transmission rod 22.

[0036] The elastic body 31 is a strip-shaped plate, and the through hole part 2531 is formed as a strip-shaped hole, the thickness of the strip-shaped plate is consistent with the thickness of the strip-shaped hole, and the width of the strip-shaped plate is not less than the width of the strip-shaped hole. The thickness of the strip-shaped plate is in the left-right direction / transverse direction, and then the end column body 25 can easily pull the elastic body 31 to deform.

[0037] The structure of fixing the end column body 25 on the second light column surface 222 by the screw sleeve 26 can control the axial line extension direction of the through hole part 2531 to be basically along the vertical direction during assembly, and can also adjust the transverse / left-right position of the through hole part 2531, so that the elastic body 31 can have a good extension state in the vertical direction in the initial state, avoid the end column body 25 pulling the elastic body 31, and finally facilitate adjusting the elastic body 31 of each sensing unit 30 to the same initial state.

[0038] Two clamping terminals 40 opposite to each other in the vertical direction can be fixed on the base frame 10, the upper end and the lower end of the elastic body 31 are fixed by the two clamping terminals 40, so that the elastic body 31 can be fully stretched in the vertical direction and basically not be elongated by the tensile force in the vertical direction. The sensor body of the sensing unit 30 can be fixed on one of the clamping terminals 40 (as shown in the figure), or can be fixed on the transverse outer arm of the base frame 10. The clamping terminal 40 is fixed on the transverse outer arm of the base frame 10.

[0039] The above embodiments only exemplarily illustrate the principle and effect of the present application, and are not used to limit the present application. The present application can be improved in many aspects without departing from the general idea, and those skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the present application. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical idea of the present application should be covered by the claims of the present application.

Claims

1. A device for monitoring the verticality of a home elevator track, characterized in that: It includes a base frame (10), multiple transmission units (20) and multiple sensing units (30) that correspond one-to-one with the transmission units (20). The base frame (10) is provided with multiple blocks (11) for mounting the transmission unit (20), and the transmission units (20) are arranged alternately in the vertical direction; The transmission unit (20) includes a transmission rod (22) with its axis extending laterally, an end cap (21) fixed to one end of the transmission rod (22), a spring (23) sleeved on the transmission rod (22), and an end post (25) fixed to the other end of the transmission rod (22). After the transmission rod (22) is matched with the block (11), it can move relative to the block (11) in the lateral direction. One end of the spring (23) is matched with the end cap (21), and the other end is matched with the block (11), so that the spring (23) can apply an elastic force in the lateral direction on the transmission rod (22). A through hole (2531) is formed at the free end of the end post (25). The sensing unit (30) includes a sensor body and an elastic body (31) with a sensitive part fixedly attached; the sensitive part is connected to the sensor body and can undergo physical quantity changes as the elastic body (31) undergoes elastic deformation; the elastic body (31) is arranged vertically and passes through the through hole (2531), and the upper and lower ends of the elastic body (31) are fixed on the base frame (10); when the transmission rod (22) moves, it can cause the elastic body (31) to undergo elastic deformation.

2. The track verticality monitoring device for a home elevator according to claim 1, characterized in that: The free end of the end (21) is formed with a plate (211) and the end face of the free end of the plate (211) is formed as an outwardly convex arc surface (212).

3. The track verticality monitoring device for a home elevator according to claim 1, characterized in that: A cavity (113) is formed on the mold block (11) and a partition (111) is formed in the cavity (113); the middle part of the transmission rod (22) matches the smooth through hole formed on the partition (111), so that the transmission rod (22) can move relative to the mold block (11).

4. The track verticality monitoring device for a home elevator according to any one of claims 1 to 3, characterized in that: An annular flange (112) is formed on one end face of the block (11) near the end (21); a screw (24) is provided on the annular flange (112), and the annular flange (112) and the screw (24) are matched by a threaded structure, so that the position of the screw (24) in the lateral direction can be adjusted.

5. The track verticality monitoring device for a home elevator according to claim 4, characterized in that: A smooth through hole is formed on the screw barrel (24) that corresponds to and matches the transmission rod (22); the middle part of the transmission rod (22) can simultaneously maintain a surface contact matching state with the smooth through hole on the screw barrel (24) and the smooth through hole on the partition plate (111).

6. The track verticality monitoring device for a home elevator according to claim 1, characterized in that: A shaft hole is formed on the end column (25) so that the end column (25) can be inserted and matched with the transmission rod (22); a threaded sleeve (26) is provided on the transmission rod (22); by turning the threaded sleeve (26), the end column (25) can be selectively switched between a state in which it is fixedly connected to the transmission rod (22) and a state in which it can move relative to it.

7. The track verticality monitoring device for a home elevator according to claim 6, characterized in that: Multiple arm plates (251) are formed on one end of the end column (25) facing the block (11) and are arranged in a circumferential pattern, with the outer wall surfaces of each arm plate (251) distributed on the same conical surface; an external thread surface (252) is formed on the outer circumferential surface of the end column (25) near the root of the arm plate (251). The threaded sleeve (26) has a threaded countersunk hole (262) that corresponds to and matches the external threaded surface (252); a tapered hole (261) with its large diameter end close to the inner bottom surface of the threaded countersunk hole (262) is formed on the inner bottom surface of the threaded countersunk hole (262); the tapered hole (261) can contact the outer wall surface of each arm plate (251) at the same time, so that the inner wall surface of the arm plate (251) can press on the outer circumferential surface of the transmission rod (22), and fix the end column (25) on the transmission rod (22).

8. The track verticality monitoring device for a home elevator according to claim 7, characterized in that: An elastic layer (2511) is fixedly provided on the inner wall surface of the arm plate (251); when the arm plate (251) presses on the outer circumferential surface of the transmission rod (22), the elastic layer (2511) can undergo elastic deformation.

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