Self-leveling laser perpendicularity detector for elevator guide rail system
By using a self-leveling laser verticality detector, the problem of shaking during the leveling process of existing laser detectors is solved through the cooperation of the leveling mechanism and damping components, thus achieving stability and accuracy in the verticality detection of elevator guide rails.
Patent Information
- Application Number
- CN202511550865.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-01-02
AI Technical Summary
Existing elevator guide rail verticality detection devices have difficulty maintaining the stability of the laser detector during the leveling process, affecting the accuracy and precision of the detection.
A self-leveling laser verticality detector is adopted. Through the cooperation of the trigger, transmission and damping components in the leveling mechanism, the movable ball is driven to rotate and connect to the moving object and rotating component, thus realizing the support ball of the laser detector. The support ball 2 provides support and rotational leveling, limits the swing range of the laser detector, and ensures the stable movement of the piston and push rod through the balanced flow of hydraulic oil, avoiding shaking.
Automatic leveling of the laser detector is achieved, ensuring precise swinging in multiple directions, maintaining the stability and accuracy of the detection, preventing shaking after leveling, and improving the accuracy and reliability of the detection.
Smart Images
Figure CN121247599A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of detection tools, in particular to a self-leveling laser verticality detector for elevator guide rail systems. BACKGROUND
[0002] In the process of elevator installation and maintenance, the verticality detection of elevator guide rails is crucial, which is directly related to the smoothness, safety and service life of the elevator. The self-leveling laser verticality detector for elevator guide rail systems can provide reliable basis for accurate detection of the verticality of elevator guide rails, and is widely used in guide rail calibration during elevator installation, guide rail deviation monitoring during daily maintenance, and problem positioning during fault diagnosis.
[0003] At present, some existing elevator guide rail verticality detection devices rely on simple mechanical structures or use part of electronic components to realize leveling and detection. For example, some devices use a hanging line plummet combined with manual observation to provide a vertical reference by the natural drop of the line plummet, and then use measuring tools to judge the relative position deviation of the guide rail and the line plummet. Some devices use electronic components such as inclination sensors to detect the inclination angle of the device, and then use motors and other driving components to adjust the angle of the laser emitting unit to achieve leveling.
[0004] However, some verticality detection devices in the prior art cannot ensure that the laser detector remains stable during leveling, and may shake during or after leveling, affecting the accuracy and precision of subsequent work of the detection device.
[0005] Therefore, in view of the above problems, a self-leveling laser verticality detector for elevator guide rail systems is proposed to solve the above problems. SUMMARY
[0006] In order to overcome the above shortcomings, the present application provides a self-leveling laser verticality detector for elevator guide rail systems, which aims to improve the problem that some verticality detection devices in the prior art cannot ensure that the laser detector remains stable during leveling.
[0007] In order to achieve the above purpose, the present application adopts the following technical solutions: The self-leveling laser verticality detector for elevator guide rail systems comprises a mounting frame, a laser detector arranged inside the mounting frame, and a leveling mechanism arranged on the top of the mounting frame. The leveling mechanism comprises a fixed pile, a transmission member, and a trigger member, the transmission member comprises an oil cylinder, one end of the oil cylinder is fixedly connected to the outside of the fixed pile, a push-pull rod is slidably connected in the oil cylinder, one end of the push-pull rod is fixedly connected to a piston and the other end is hingedly connected to the top outside of the laser detector, a spring is arranged in the oil cylinder and one end of the spring is connected to the piston, an extension pile is fixedly connected to the bottom of the piston, and a transmission frame is slidably connected in the extension pile; The trigger member comprises a rotating spherical shell fixed in the mounting frame, an active ball is rotatably connected in the rotating spherical shell, two swing rods are fixedly connected to the outside of the active ball, a counterweight is fixedly connected to the bottom of the bottom swing rod, and an L-shaped transmission rod connected to the transmission frame is fixedly connected to the top of the top swing rod; As a further description of the above technical solution: Both sides of the extension pile are fixedly connected with sealing plates, and a sealing groove with a shape matching that of the sealing plates is formed in the bottom of the oil cylinder; As a further description of the above technical solution: An active groove is formed in the outside of the transmission frame, and a steel ball with a shape matching that of the active groove is fixedly connected to the end of the horizontal end of the L-shaped transmission rod; As a further description of the above technical solution: The fixed points of the two swing rods and the active ball are centrally symmetric along the center of the active ball, and a limiting groove for limiting the swing amplitude of the swing rod is formed in the top and bottom of the rotating spherical shell; As a further description of the above technical solution: The leveling mechanism further comprises a damping member, the damping member comprises a U-shaped tube fixedly connected at both ends to the top of the oil cylinder, a valve tube is arranged in the middle of the U-shaped tube, a plurality of slide rods are fixedly connected in the U-shaped tube and pass through the valve tube, a baffle is slidably connected to the outside of the plurality of slide rods and has the same outer diameter as the inner diameter of the valve tube; As a further description of the above technical solution: A support ball is fixedly connected to the middle of the mounting frame, the support ball comprises a spherical fixed shell fixedly connected to the center of the mounting frame, a rotating frame is rotatably connected in the spherical fixed shell, a sealing top is sealingly connected to the bottom of the spherical fixed shell, a soft pad is arranged in the spherical fixed shell, the soft pad abuts against the sealing top, and the sealing top is fixedly connected to the outside of the laser detector; As a further description of the above technical solution: The laser detector is arranged inside the rotating frame, and the outside of the rotating frame is matched in shape with the inside of the spherical fixed shell; As a further description of the above technical solution: A wire passing pipe is arranged on the top of the laser detector, and a hinged pile for connecting the push-pull rod is fixedly connected to the outside of the wire passing pipe.
[0008] The present application has the following beneficial effects: In the present application, through the rotation cooperation of the movable ball in the trigger piece and the rotating ball shell, the bottom swing rod is driven to naturally swing downward with the counterweight, the top swing rod drives the L-shaped transmission rod to move, and then the sliding cooperation of the steel ball at the end of the L-shaped transmission rod and the movable groove of the transmission frame makes the transmission frame slide directionally in the extension pile, and further drives the piston and the push-pull rod to move stably, realizes the precise swing of the laser detector in multiple directions, achieves the automatic leveling effect, and through the pressure difference generated by the piston movement, the baffle in the damping piece is driven to slide along the slide rod, the valve pipe is opened, the hydraulic oil in the oil cylinder flows evenly, and the sliding sealing of the extension pile sealing plate and the oil cylinder sealing groove is matched, which ensures the stable movement of the piston and the push-pull rod, and avoids the shaking of the laser detector during leveling. BRIEF DESCRIPTION OF DRAWINGS
[0009] Figure 1 A perspective view of a self-leveling laser verticality detector for an elevator guide rail system according to the present application; Figure 2 A structural view of a mounting frame of a self-leveling laser verticality detector for an elevator guide rail system according to the present application; Figure 3 A structural view of a supporting ball of a self-leveling laser verticality detector for an elevator guide rail system according to the present application; Figure 4 A structural view of a leveling mechanism of a self-leveling laser verticality detector for an elevator guide rail system according to the present application; Figure 5 A structural view of a transmission member of a self-leveling laser verticality detector for an elevator guide rail system according to the present application; Figure 6 A structural view of a damping member of a self-leveling laser verticality detector for an elevator guide rail system according to the present application; Figure 7 A structural view of a damping member of a self-leveling laser verticality detector for an elevator guide rail system according to the present application; Figure 5 An enlarged view of position A in FIG. 1; Figure 8 An enlarged view of position B in FIG. 1; Figure 6 An enlarged view of position B in FIG. 1.
[0010] LEGEND: 1, mounting frame; 2, support ball; 201, spherical fixed shell; 202, rotating frame; 203, sealing top; 204, soft pad; 3, laser detector; 4, leveling mechanism; 41, fixed pile; 42, transmission part; 421, oil cylinder; 422, push-pull rod; 423, piston; 424, spring; 425, extension pile; 426, transmission frame; 427, movable groove; 428, sealing plate; 43, trigger part; 431, rotating ball shell; 432, movable ball; 433, swing rod; 434, counterweight; 435, L-shaped transmission rod; 436, steel ball; 44, damping part; 441, U-shaped tube; 442, valve tube; 443, sliding rod; 444, baffle. DETAILED DESCRIPTION
[0011] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0012] Referring to Figures 1 to 8 , the present application provides an embodiment: a self-leveling laser verticality detector for elevator guide rail system, comprising a mounting frame 1, the mounting frame 1 provides a mounting carrier for the laser detector 3, the leveling mechanism 4 and the support ball 2, ensuring the structural stability of the overall equipment, and the laser detector 3 is arranged inside, the laser detector 3 is used for emitting laser beam, detecting the verticality of the elevator guide rail, and outputting detection data related to the verticality of the guide rail, the top of the mounting frame 1 is provided with the leveling mechanism 4, the leveling mechanism 4 adjusts the inclination state of the laser detector 3, so that the laser detector 3 maintains the required posture for vertical detection, the middle part of the mounting frame 1 is fixedly connected with the support ball 2, the support ball 2 provides support for the rotating leveling of the laser detector 3, limits the swing range of the laser detector 3, and reduces the friction when the laser detector 3 rotates.
[0013] The support ball 2 comprises a spherical fixed shell 201 fixedly connected at the center of the mounting frame 1, which serves as an external fixed structure of the support ball 2, provides a rotating space for the rotating frame 202, and cooperates with the sealing top 203 to realize internal sealing. The rotating frame 202 is rotatably connected inside the spherical fixed shell 201, cooperates with the outer side of the laser detector 3, drives the laser detector 3 to swing within the spherical fixed shell 201 within a certain range, and the outer side of the laser detector 3 is arranged inside the rotating frame 202, and the outer side of the rotating frame 202 is adapted to the internal shape of the spherical fixed shell 201. The bottom of the spherical fixed shell 201 is sealingly connected with the sealing top 203, the sealing top 203 is sealingly connected with the bottom of the spherical fixed shell 201, prevents dust, impurities and the like from entering the inside of the spherical fixed shell 201, and slides with the laser detector 3 to rotate, extrudes the soft pad 204 to realize buffering, the inside of the spherical fixed shell 201 is provided with the soft pad 204, the soft pad 204 abuts against the sealing top 203, provides a buffering force when the sealing top 203 slides with the laser detector 3, alleviates vibration in the leveling process of the laser detector 3, and the sealing top 203 is fixedly connected with the outer side of the laser detector 3.
[0014] The leveling mechanism 4 comprises a fixed pile 41, a transmission member 42 and a trigger member 43. The fixed pile 41 provides a fixed support point for the oil cylinder 421, so that the oil cylinder 421 remains stable in position during leveling. The transmission member 42 converts the action of the trigger member 43 into the power for adjusting the posture of the laser detector 3, realizing force transmission. The trigger member 43 senses the inclination state of the laser detector 3 and generates a trigger action to provide an initial signal for the power source of the transmission member 42. The transmission member 42 comprises an oil cylinder 421, which provides mounting space for a push-pull rod 422, a piston 423 and a spring 424, and simultaneously serves as a hydraulic oil containing cavity. The piston 423 slides smoothly through the flow of hydraulic oil. One end of the oil cylinder 421 is fixedly connected to the outside of the fixed pile 41. The push-pull rod 422 is slidably connected inside the oil cylinder 421. The push-pull rod 422 converts the linear motion of the piston 423 into the force for swinging the laser detector 3, thereby driving the laser detector 3 to adjust the inclination angle. One end of the push-pull rod 422 is fixedly connected to the piston 423. The piston 423 slides inside the oil cylinder 421, changes the pressure distribution of the hydraulic oil in the oil cylinder 421, and simultaneously drives the push-pull rod 422 to move, which is also a direct component for compressing or stretching the spring 424. A wire passing pipe is arranged on the top of the laser detector 3. The wire passing pipe is used to arrange the cables on the top of the laser detector 3, avoid the cables from affecting the operation of the equipment, and provide a mounting position for the hinge pile. The hinge pile is fixedly connected to the outside of the wire passing pipe and is used to connect the push-pull rod 422 and the laser detector 3. The hinge pile allows the push-pull rod 422 to rotate by a certain angle when swinging the laser detector 3, thereby ensuring effective force transmission. The spring 424 is arranged inside the oil cylinder 421 and one end of the spring 424 is connected to the piston 423. The spring 424 generates elastic force when the piston 423 slides, buffers the movement speed of the piston 423, avoids the laser detector 3 from being impacted too much during leveling, and assists the piston 423 to reset. The bottom of the piston 423 is fixedly connected to an extension pile 425. The extension pile 425 provides a sliding channel for a transmission frame 426 and limits the sliding direction of the transmission frame 426. The transmission frame 426 is slidably connected inside the extension pile 425. The transmission frame 426 receives the force of an L-shaped transmission rod 435, transmits the force to the extension pile 425, and drives the piston 423 to move. The extension pile 425 is fixedly connected to sealing plates 428 on both sides. The sealing plates 428 cooperate with the sealing grooves at the bottom of the oil cylinder 421 to maintain the sealing property of the inside of the oil cylinder 421 when the extension pile 425 moves with the piston 423, thereby preventing the hydraulic oil in the oil cylinder 421 from leaking. The bottom of the oil cylinder 421 is provided with sealing grooves that are adapted to the shape of the sealing plates 428. The sealing grooves provide sliding space for the sealing plates 428 and realize the sealing of the oil cylinder 421 through cooperation with the sealing plates 428.
[0015] The trigger piece 43 comprises a rotating spherical shell 431 fixed inside the mounting frame 1, which provides a rotating space for a movable ball 432, limits the rotating range of the movable ball 432, and provides a passage for a swing rod 433, the inside of which is rotatably connected with the movable ball 432, which rotates in the rotating spherical shell 431 to drive the synchronous movement of the two swing rods 433, converts the gravity of the counterweight 434 into the swinging action of the swing rod 433, the outside of the movable ball 432 is fixedly connected with the two swing rods 433, the swing rods 433 transmit the rotating action of the movable ball 432, the bottom swing rod 433 drives the movement of the counterweight 434, and the top swing rod 433 drives the movement of the L-shaped transmission rod 435, the fixed points of the two swing rods 433 and the movable ball 432 are centrally symmetric along the center of the movable ball 432, and the top and bottom of the rotating spherical shell 431 are both provided with a limiting groove for limiting the swing amplitude of the swing rod 433, the limiting groove limits the swing amplitude of the swing rod 433, avoids damage to the trigger piece 43 due to too large swing angle of the swing rod 433, and ensures that the action of the swing rod 433 is within the effective leveling range. The bottom of the bottom swing rod 433 is fixedly connected with the counterweight 434, the counterweight 434 always keeps a drooping state by using its own gravity, senses the inclination of the laser detector 3, drives the bottom swing rod 433 to swing, the top of the top swing rod 433 is fixedly connected with the L-shaped transmission rod 435 connected with the transmission frame 426, the L-shaped transmission rod 435 converts the swing action of the top swing rod 433 into the acting force on the transmission frame 426, pushes the transmission frame 426 to move, the outside of the transmission frame 426 is provided with a movable groove 427, the movable groove 427 is matched in shape with the steel ball 436 to provide a sliding space for the steel ball 436, allows the steel ball 436 to slide horizontally when the L-shaped transmission rod 435 swings horizontally, and the horizontal end of the L-shaped transmission rod 435 is fixedly connected with the steel ball 436 matched in shape with the movable groove 427, the steel ball 436 cooperates with the movable groove 427 to reduce the friction between the L-shaped transmission rod 435 and the transmission frame 426, so that the action of the L-shaped transmission rod 435 can be smoothly transmitted to the transmission frame 426.
[0016] The leveling mechanism 4 further comprises a damping member 44, which slows down the movement speed of the piston 423 and the push-pull rod 422, avoids the movement of the piston 423 and the push-pull rod 422 too fast to cause the leveling of the laser detector 3 unstable, and the damping member 44 comprises a U-shaped pipe 441 fixedly connected at two ends to the top of the oil cylinder 421, the U-shaped pipe 441 is connected to the top of the oil cylinder 421 at two sides to form a hydraulic oil flow channel, so that the hydraulic oil at two sides of the oil cylinder 421 can realize balanced flow through the U-shaped pipe 441, the middle part of the U-shaped pipe 441 is provided with a valve pipe 442, the valve pipe 442 serves as a control structure in the middle part of the U-shaped pipe 441 to control the flow of the hydraulic oil in the U-shaped pipe 441, and the opening and closing of the oil passage are realized when the baffle 444 slides, a plurality of slide rods 443 are fixedly connected in the U-shaped pipe 441 and pass through the valve pipe 442, the slide rods 443 provide sliding guide for the baffle 444 and limit the sliding direction of the baffle 444, the baffle 444 is slidably connected to the outer sides of the plurality of slide rods 443 and has the same outer diameter as the inner diameter of the valve pipe 442, the baffle 444 has the same outer diameter as the inner diameter of the valve pipe 442 and can block or open the valve pipe 442 when sliding on the slide rods 443, the flow of the hydraulic oil is adjusted by controlling the on-off of the oil passage, and then the movement speed of the piston 423 is controlled, so as to ensure the stability of the leveling process.
[0017] Working principle: first, the entire mounting frame 1 is installed at a specified position, if the laser detector 3 is inclined, the trigger member 43 in the mounting frame 1 will respond first. Influenced by the counterweight 434, the movable ball 432 in the trigger member 43 rotates in the rotating ball shell 431, because the fixed points of the two swing rods 433 and the movable ball 432 are centrally symmetric along the ball center of the movable ball 432, and the top and bottom of the rotating ball shell 431 are both provided with limiting grooves for limiting the swing amplitude of the swing rod 433, so the bottom swing rod 433 will swing correspondingly with the natural droop of the counterweight 434, and the top swing rod 433 drives the L-shaped transmission rod 435 to move. The end steel ball 436 of the L-shaped transmission rod 435 moves the entire transmission frame 426, and the downward swing of the L-shaped transmission rod 435 drives the transmission frame 426 to slide downward in the extension pile 425, and the horizontal swing makes the steel ball 436 slide horizontally in the movable groove 427 in the L-shaped transmission rod 435, so that the piston 423 is only subjected to the thrust or pull force of the L-shaped transmission rod 435 along the center axis of the oil cylinder 421, so that the piston 423 and the push-pull rod 422 slide stably.
[0018] The different direction movements of the plurality of push-pull rods 422 make the laser detector 3 swing, and during the movement of the piston 423, the pressure on both sides of the piston 423 is unbalanced due to the movement of the piston 423, and then the originally inside the valve pipe 442 baffle 444 is slid along the slide rod 443 due to the pressure difference, and when the baffle 444 slides out of the valve pipe 442, the entire valve pipe 442 is opened, so that the hydraulic oil in the oil cylinder 421 flows from the part with large pressure to the part with small pressure, thereby ensuring the smoothness of the entire piston 423 and the push-pull rod 422 during movement, so that the entire laser detector 3 is stable during the corresponding swing, and the laser detector 3 remains stable after leveling, preventing it from being affected by external factors and shaking.
[0019] In addition, the support ball 2 fixedly connected in the middle of the mounting frame 1 also provides support and protection for the rotation leveling of the laser detector 3. The spherical fixed shell 201 of the support ball 2 is rotatably connected with the rotating frame 202, so that the laser detector 3 can swing within a certain range inside the support ball 2 to ensure that the detection part of the laser detector 3 remains vertical, and when the laser detector 3 rotates, the sealing top 203 will slide inside the spherical fixed shell 201 and press the soft pad 204, thereby further stabilizing the leveling movement of the laser detector 3 through the buffering of the soft pad 204, and preventing dust and other interference factors from entering the inside of the support ball 2 and affecting the operation of the laser detector 3.
[0020] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made shall be included in the protection scope of the present application.
Claims
1. A self-leveling laser verticality detector for elevator guide rail systems, comprising a mounting bracket (1), characterized in that: The mounting bracket (1) is equipped with a laser detector (3) inside and a leveling mechanism (4) is provided on the top of the mounting bracket (1). The leveling mechanism (4) includes a fixed pile (41), a transmission component (42), and a trigger component (43). The transmission component (42) includes a hydraulic cylinder (421). One end of the hydraulic cylinder (421) is fixedly connected to the outside of the fixed pile (41). A push-pull rod (422) is slidably connected inside the hydraulic cylinder (421). One end of the push-pull rod (422) is fixedly connected to a piston (423), and the other end is hinged to the top outside of the laser detector (3). A spring (424) is provided inside the hydraulic cylinder (421), and one end of the spring (424) is connected to the piston (423). An extension pile (425) is fixedly connected to the bottom of the piston (423), and a transmission frame (426) is slidably connected inside the extension pile (425). The trigger (43) includes a rotating spherical shell (431) fixed inside the mounting frame (1), a movable ball (432) is rotatably connected inside the rotating spherical shell (431), and two swing rods (433) are fixedly connected to the outside of the movable ball (432). A counterweight (434) is fixedly connected to the bottom of the bottom swing rod (433), and an L-shaped transmission rod (435) connected to the transmission frame (426) is fixedly connected to the top of the top swing rod (433).
2. The self-leveling laser verticality detector for elevator guide rail systems according to claim 1, characterized in that: Both sides of the extension pile (425) are fixedly connected with sealing plates (428), and the bottom of the oil cylinder (421) is provided with a sealing groove that matches the shape of the sealing plate (428).
3. The self-leveling laser verticality detector for elevator guide rail systems according to claim 1, characterized in that: The transmission frame (426) has an external movable groove (427), and the horizontal end of the L-shaped transmission rod (435) is fixedly connected with a steel ball (436) that matches the shape of the movable groove (427).
4. The self-leveling laser verticality detector for elevator guide rail systems according to claim 1, characterized in that: The fixing points of the two swing rods (433) and the movable ball (432) are centrally symmetrical about the center of the movable ball (432), and the top and bottom of the rotating spherical shell (431) are provided with limiting grooves to limit the swing amplitude of the swing rods (433).
5. The self-leveling laser verticality detector for elevator guide rail systems according to claim 1, characterized in that: The leveling mechanism (4) also includes a damping element (44), which includes a U-shaped tube (441) with both ends fixedly connected to the top of the cylinder (421). A valve tube (442) is provided in the middle of the U-shaped tube (441). Multiple slide rods (443) are fixedly connected inside the U-shaped tube (441) and the slide rods (443) pass through the valve tube (442). A baffle (444) is slidably connected to the outside of the multiple slide rods (443) and the outer diameter of the baffle (444) is the same as the inner diameter of the valve tube (442).
6. The self-leveling laser verticality detector for elevator guide rail systems according to claim 1, characterized in that: The mounting frame (1) is fixedly connected to a support ball (2) in the middle. The support ball (2) includes a spherical fixed shell (201) fixedly connected to the center of the mounting frame (1). A rotating frame (202) is rotatably connected inside the spherical fixed shell (201). A sealing top (203) is sealed to the bottom of the spherical fixed shell (201). A soft pad (204) is provided inside the spherical fixed shell (201). The soft pad (204) abuts against the sealing top (203). The sealing top (203) is fixedly connected to the outside of the laser detector (3).
7. The self-leveling laser verticality detector for elevator guide rail systems according to claim 6, characterized in that: The outer side of the laser detector (3) is set on the inner side of the rotating frame (202), and the outer side of the rotating frame (202) is adapted to the internal shape of the spherical fixed shell (201).
8. The self-leveling laser verticality detector for elevator guide rail systems according to claim 1, characterized in that: The top of the laser detector (3) is provided with a conduit, and the outside of the conduit is fixedly connected with a hinged post for connecting the push-pull rod (422).