A position detection device for an elevator car
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-14
AI Technical Summary
传统检测依赖单一触发信号，难以在高速运行中区分精确到位与接近状态，可能导致平层精度不足或重复调整
[0012]该电梯轿厢位置检测装置通过设置多级触发机构，在电梯接近目标楼层时由辅助触发件首先接触感应单元触发初级位置信号进行预判，随后主触发件精确触发定位信号，这种分步动作机制显著提升了平层停靠的精度和信号可靠性，有效区分接近与到位状态。装置具备优异的抗干扰与环境适应性：防误触机构的导流罩引导气流及杂物，清洁滚轮隔离非目标接触并具备自洁功能，弹性复位机构外部的防尘套提供动态密封防护，确保在井道粉尘、振动等复杂环境下长期稳定运行。定位指示灯在精确定位时激活，提供直观的到位状态视觉反馈。安装支架的竖向导轨、滑动基座和角度调节板设计使得位置感应组件的高度和水平角度可精细调节，确保精准对准并简化安装维护。联动限位组件约束辅助触发件的行程，弹性复位机构与导向结构保证动作顺畅，压力传感模块的非冲击检测方式，均提高了整体结构的耐用性和动作可靠性。这些设计协同作用，最终实现了高精度、高可靠、强适应、易维护且长寿命的检测功能，有效保障电梯运行安全性和用户体验。
Smart Images
Figure CN224633021U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to an elevator car position detection device, belonging to the field of elevator detection technology. Background Technology
[0002] Precise position detection of the elevator car is crucial for safe elevator operation and leveling. Its accuracy and reliability directly impact the passenger experience and equipment safety. Elevator systems must meet the demands of high-frequency, high-precision operation; therefore, the position detection device must provide fast, stable, and interference-resistant position signals to ensure the car accurately stops at the target floor and opens the doors reliably.
[0003] Traditional elevator position detection devices often suffer from response lag or susceptibility to interference. Traditional detection relies on a single trigger signal, making it difficult to distinguish between precise positioning and proximity states during high-speed operation, potentially leading to insufficient leveling accuracy or repeated adjustments. Furthermore, the complex shaft environment, with dust, vibration, or electromagnetic interference, can affect the stability of the detection elements, causing erroneous signals. In addition, common mechanical triggering structures are prone to wear or impact under frequent operation, affecting long-term reliability, and lack effective pre-triggering or status indication mechanisms, hindering real-time monitoring and maintenance of operational status. Summary of the Invention
[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing an elevator car position detection device to achieve high precision, high reliability, strong adaptability, easy maintenance and long service life position detection function, effectively ensuring the safety of elevator operation and user experience. The device includes a mounting bracket, which is fixedly installed on the side wall of the elevator shaft. A position sensing component is disposed on the mounting bracket and includes multiple sensing units arranged at intervals along the elevator running direction; A multi-stage triggering mechanism is installed on the side wall of the elevator car and corresponds to the position sensing component; The multi-level triggering mechanism includes: The main trigger is connected to the side wall of the car; An auxiliary trigger is movably disposed in front of the main trigger along the car's running direction, and the trigger end of the auxiliary trigger protrudes beyond the trigger end of the main trigger. An elastic reset mechanism connects the auxiliary trigger and the main trigger. A linkage limiting component restricts the relative range of motion between the auxiliary trigger and the main trigger; When the elevator reaches the target floor, the auxiliary trigger first contacts the corresponding sensing unit and triggers a primary position signal, and the main trigger then contacts the sensing unit and triggers a positioning signal.
[0005] Furthermore, the main trigger includes: The cantilever plate has its vertical edge fixed to the side wall of the car. A trigger magnet is positioned at the front end of the horizontal edge of the cantilever plate; The pressure sensing module is located on the horizontal side of the cantilever plate.
[0006] Furthermore, the auxiliary trigger includes: The sliding guide rod is set parallel to the elevator's direction of travel; The trigger head is fixed to the front end of the sliding guide rod; A guide sleeve is fixed to the horizontal edge of the cantilever plate; The elastic reset mechanism is sleeved on the sliding guide rod, with its two ends abutting against the inner wall of the guide sleeve and the trigger head, respectively.
[0007] Furthermore, the linkage limiting component includes: A limiting groove is formed in the side wall of the guide sleeve; A limiting pin passes through the sliding guide rod and extends into the limiting groove.
[0008] Furthermore, the mounting bracket includes: Vertical guide rails are fixed to the side wall of the shaft; A sliding base is connected to the vertical guide rail; An angle adjustment plate is movably connected to the sliding base.
[0009] Furthermore, the sensing unit includes: The sensor array is arranged in a ring around the signal acquisition area; A pressure-sensitive switch is located at the center of the sensor array; A positioning indicator light is arranged around the pressure-sensitive switch; When the auxiliary triggering element contacts the sensor array, it triggers a primary position signal. When the main triggering element presses the pressure-sensitive switch, it triggers a positioning signal and activates the positioning indicator light.
[0010] Furthermore, the multi-level triggering mechanism is also provided with an anti-accidental touch mechanism, which includes: A flow deflector is disposed at the front end of the auxiliary trigger element; Cleaning rollers are located on both sides of the trigger head.
[0011] Furthermore, the elastic reset mechanism is covered with a dust cover, and the two ends of the dust cover are respectively connected to the trigger head and the guide sleeve. Beneficial effects
[0012] This elevator car position detection device employs a multi-stage triggering mechanism. As the elevator approaches the target floor, an auxiliary trigger first contacts the sensing unit to trigger a primary position signal for preliminary judgment. Subsequently, the main trigger precisely triggers the positioning signal. This step-by-step action mechanism significantly improves the accuracy and reliability of leveling and stopping, effectively distinguishing between approach and arrival states. The device boasts excellent anti-interference and environmental adaptability: the anti-accidental-touch mechanism's guide shield directs airflow and debris; the cleaning roller isolates non-target contact and has a self-cleaning function; and the external dust cover of the elastic reset mechanism provides dynamic sealing protection, ensuring long-term stable operation in complex environments such as shaft dust and vibration. The positioning indicator light activates during precise positioning, providing intuitive visual feedback on the arrival status. The vertical guide rail, sliding base, and angle adjustment plate design of the mounting bracket allow for fine adjustment of the height and horizontal angle of the position sensing component, ensuring accurate alignment and simplifying installation and maintenance. The linkage limit component constrains the stroke of the auxiliary trigger, the elastic reset mechanism and guide structure ensure smooth operation, and the non-impact detection method of the pressure sensing module all improve the overall structural durability and operational reliability. These design features work together to achieve high-precision, high-reliability, highly adaptable, easy-to-maintain, and long-life detection functions, effectively ensuring elevator operation safety and user experience. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the mounting bracket and position sensing component of this utility model; Figure 2 This is a schematic diagram of the multi-stage triggering mechanism of this utility model; Figure 3 This is a schematic diagram showing the connection between the main trigger and the auxiliary trigger of this utility model; Figure 4 This is a schematic diagram of the auxiliary trigger and dust cover of this utility model; Figure 5 This is a schematic diagram of the linkage limiting component of this utility model.
[0014] In the diagram: 1. Mounting bracket; 101. Vertical guide rail; 102. Sliding base; 103. Angle adjustment plate; 2. Position sensing component; 201. Sensing unit; 2011. Sensor array; 2012. Pressure-sensitive switch; 2013. Positioning indicator light; 3. Multi-stage triggering mechanism; 301. Main trigger element; 3011. Cantilever plate; 3012. Trigger magnet; 3013. Pressure sensing module; 302. Auxiliary trigger element; 3021. Sliding guide rod; 3022. Trigger head; 3023. Guide sleeve; 303. Elastic reset mechanism; 3031. Dust cover; 304. Linkage limit component; 3041. Limit groove; 3042. Limit pin; 4. Anti-accidental touch mechanism; 401. Flow guide; 402. Cleaning roller. Detailed Implementation
[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0016] Please see Figure 1-5 As shown, an elevator car position detection device includes a mounting bracket 1 fixed to the concrete structure of the shaft side wall via a vertical guide rail 101, the vertical guide rail 101 being provided with a T-shaped cross-section guide groove; a sliding base 102 is connected to the guide groove of the vertical guide rail 101 via an internally embedded roller group, enabling the sliding base 102 to move vertically up and down along the vertical guide rail 101; an angle adjustment plate 103 is hinged to the front end of the sliding base 102 via a horizontal rotating shaft, and an installation platform is provided on the front of the angle adjustment plate 103 for fixing the position sensing component 2; when the height locking bolt is loosened, the sliding base 102 drives the angle adjustment plate 103 to slide up and down along the vertical guide rail 101 to adjust the height; when the angle locking bolt is loosened, the angle adjustment plate 103 can rotate around the horizontal rotating shaft to adjust the horizontal tilt angle, ensuring that the position sensing component 2 is precisely aligned with the multi-stage triggering mechanism 3 on the car side.
[0017] In the position sensing component 2, multiple sensing units 201 are fixed to the angle adjustment plate 103 of the mounting bracket 1 by snap-fit connectors, and the spacing between adjacent sensing units 201 matches the elevator floor height; the sensor array 2011 consists of multiple sensing probes arranged in a concentric ring to form a ring detection area; the pressure sensitive switch 2012 is embedded at the center point of the ring of the sensor array 2011, and its contacts protrude from the mounting surface; the positioning indicator light 2013 is set around the base of the pressure sensitive switch 2012 using a ring light strip; when the auxiliary trigger 302 contacts and covers a local area of the sensor array 2011, the covered sensing probe generates an electrical signal change; when the main trigger 301 presses the contacts of the pressure sensitive switch 2012 to a set stroke, the internal contacts of the pressure sensitive switch 2012 close. The cantilever plate 3011 of the main trigger 301 is set as an L-shaped metal component, and its vertical side is fixed to the steel structure of the car side wall by high-strength bolts; the trigger magnetic conductor 3012 is a permanent magnet material block, which is fastened to the front end of the horizontal side of the cantilever plate 3011 by countersunk screws; the pressure sensing module 3013 is a strain gauge sensor, which is attached to the area of the horizontal side of the cantilever plate 3011 near the vertical side; when the trigger magnetic conductor 3012 is compressed, the horizontal side of the cantilever plate 3011 undergoes a slight bending deformation, and the pressure sensing module 3013 detects the deformation and outputs a signal.
[0018] The sliding guide rod 3021 of the auxiliary trigger 302 is arranged parallel to the car's running direction; the trigger head 3022 is fixed to the front end of the sliding guide rod 3021 by a threaded connection, and its contact surface is covered with a wear-resistant material layer; the guide sleeve 3023 is welded and fixed to the front end of the horizontal side of the cantilever plate 3011; the elastic reset mechanism 303 uses a stainless steel compression spring sleeved on the outside of the sliding guide rod 3021, with the front end of the spring pressing against the rear end face of the trigger head 3022 and the rear end of the spring pressing against the stepped surface of the inner cavity of the guide sleeve 3023; when the trigger head 3022 is pressed by an external force, it pushes the sliding guide rod 3021 to compress the spring and slides it backward into the guide sleeve 3023; when the external force disappears, the spring pushes the sliding guide rod 3021 to reset, causing the trigger head 3022 to extend.
[0019] The limiting groove 3041 of the linkage limiting component 304 is a long strip-shaped through hole that penetrates both sides of the guide sleeve 3023; the limiting pin 3042 vertically penetrates the middle of the sliding guide rod 3021, and the two ends of the pin are embedded in the limiting groove 3041; the guide cover 401 of the anti-accidental contact mechanism 4 is made of engineering plastic injection molding and is fixed in front of the trigger head 3022 by clamps, and its front end is set as an outwardly expanding trumpet-shaped guide port; the cleaning roller 402 is symmetrically installed on the left and right sides of the trigger head 3022 through the roller brackets on both sides, and the outer edge of the roller protrudes from the contact surface of the trigger head 3022; when the car is running, the guide cover 401 diverts the airflow in front to both sides; when there is no target contact, the cleaning roller 402 prioritizes contact with the obstacle and rolls to separate the trigger head 3022. The dust cover 3031 is made of corrugated rubber tubing. Its front end is sealed to the rear cylindrical surface of the trigger head 3022 by a stainless steel clamp, and its rear end is sealed to the front flange of the guide sleeve 3023 by a clamp. When the trigger head 3022 moves in extension and retraction, the corrugated tubing extends and retracts synchronously. The dust cover 3031 completely covers the mating section of the elastic reset mechanism 303 and the sliding guide rod 3021, forming a dynamic sealing barrier.
[0020] As a technical optimization solution of this utility model, such as Figure 2As shown, the cantilever plate 3011 is configured as an L-shaped metal component, with its vertical side fixed to the car side wall by bolt assembly to provide a support base, and its horizontal side extending forward; the trigger magnetic conductor 3012 is fixedly connected to the foremost front end of the horizontal side of the cantilever plate 3011 and protrudes from the end of the cantilever plate 3011 to generate magnetic induction with the sensing unit 201; the pressure sensing module 3013 is installed in the area of the horizontal side of the cantilever plate 3011 near the vertical side, located behind the trigger magnetic conductor 3012; When the triggering magnetic conductor 3012 contacts and presses the sensing unit 201, the force is transmitted to the horizontal edge of the cantilever plate 3011, causing a slight elastic deformation of the horizontal edge of the cantilever plate 3011. This deformation is sensed by the pressure sensing module 3013 and converted into an electrical signal output. The triggering magnetic conductor 3012 and the pressure sensing module 3013 maintain a fixed relative position on the cantilever plate 3011, ensuring that the pressure action of the triggering magnetic conductor 3012 can be reliably transmitted to the pressure sensing module 3013.
[0021] As a technical optimization solution of this utility model, such as Figures 2 to 5 As shown, the trigger head 3022 is fixedly connected to the foremost end of the sliding guide rod 3021 and protrudes outside the guide sleeve 3023, used for the first contact with the sensing unit 201; the guide sleeve 3023 is fixedly installed in the front end area of the horizontal side of the cantilever plate 3011, providing an axial guide channel for the sliding guide rod 3021; the elastic reset mechanism 303 is a compression spring, which is sleeved on the sliding guide rod 3021 and located inside the guide sleeve 3023, with the front end of the compression spring pressing against the rear end face of the trigger head 3022 and the rear end of the compression spring pressing against the end face of the inner cavity of the guide sleeve 3023; when the trigger head 3022 is subjected to external resistance, it pushes... The sliding guide rod 3021 overcomes the elastic force of the compression spring and slides backward into the guide sleeve 3023; when the external resistance disappears, the compression spring pushes the sliding guide rod 3021 forward to reset, so that the trigger head 3022 returns to the initial protruding position; the sliding stroke of the sliding guide rod 3021 in the guide sleeve 3023 is constrained by the linkage limiting component 304; the sliding guide rod 3021, the trigger head 3022 and the guide sleeve 3023 together constitute the telescopic motion mechanism of the auxiliary trigger 302, and its compression action causes the trigger head 3022 to move backward, so that the trigger magnet 3012 of the main trigger 301 makes way for the contact path.
[0022] As a technical optimization solution of this utility model, such as Figure 5As shown, the limiting groove 3041 is an elongated through hole, the length of which is parallel to the axis of the sliding guide rod 3021, and is formed on the side wall of the guide sleeve 3023; the limiting pin 3042 is fixedly connected to and perpendicularly passes through the sliding guide rod 3021, and both ends of the limiting pin 3042 extend into the limiting grooves 3041 symmetrically formed on the side walls of the guide sleeve 3023; the sliding range of the limiting pin 3042 in the limiting groove 3041 strictly defines the sliding guide rod 3021 together with the trigger head 3022 relative to the guide sleeve 3023. The maximum extension stroke of 023; when the trigger head 3022 is pressed and drives the sliding guide rod 3021 to move backward, the limiting pin 3042 slides backward along the limiting groove 3041 until it contacts the rear end of the limiting groove 3041; when the compression spring pushes the sliding guide rod 3021 forward to reset, the limiting pin 3042 slides forward along the limiting groove 3041 until it contacts the front end of the limiting groove 3041 to prevent the trigger head 3022 from coming out; the cooperation between the limiting pin 3042 and the limiting groove 3041 ensures the linear movement of the sliding guide rod 3021.
[0023] As a technical optimization solution of this utility model, such as Figure 1 As shown, the vertical guide rail 101 is fixed to the side wall of the elevator shaft by expansion bolts, providing an installation base for the entire mounting bracket 1; the sliding base 102 is connected to the vertical guide rail 101 by a slider or roller structure, allowing the sliding base 102 to slide up and down along the length of the vertical guide rail 101, thereby adjusting the overall height of the mounting bracket 1; the angle adjustment plate 103 is hinged to the front end of the sliding base 102 by a horizontal pivot, allowing the angle adjustment plate 103 to rotate and swing at a small angle relative to the sliding base 102 in the horizontal plane; the position sensing component 2 is fixedly installed on the front of the angle adjustment plate 103; when it is necessary to adjust the water level of the position sensing component 2... When the angle is horizontal, loosen the locking bolt, rotate the angle adjustment plate 103 to the desired position, and then tighten the locking bolt again. When it is necessary to adjust the height of the position sensing component 2, loosen the height locking piece, move the sliding base 102 along the vertical guide rail 101 to the target height, and then tighten the height locking piece again. The height of the position sensing component 2 is adjusted by moving the sliding base 102 on the vertical guide rail 101, and the horizontal angle of the position sensing component 2 is finely adjusted by rotating the angle adjustment plate 103 relative to the sliding base 102. The two work together to ensure that the sensing unit 201 on the position sensing component 2 is precisely aligned with the multi-stage triggering mechanism 3 on the side wall of the elevator car.
[0024] As a technical optimization solution of this utility model, such as Figure 1As shown, the sensor array 2011 consists of multiple sensing probes arranged in a ring array around the signal acquisition area, forming the sensing area. The pressure-sensitive switch 2012 is fixedly installed at the center point of the ring of the sensor array 2011, at the core of the sensing area. The positioning indicator light 2013 is installed in a ring array around the pressure-sensitive switch 2012, located inside the sensor array 2011. When the elevator car approaches the target floor, the trigger head 3022 of the auxiliary trigger 302 first contacts and covers a local area of the sensor array 2011, causing a change in the state of the covered sensing probes, thereby generating a primary position signal. As the elevator car continues its precise positioning operation, the trigger magnet 3012 of the main trigger 301 moves forward and eventually presses the trigger end face of the pressure-sensitive switch 2012. The pressure-sensitive switch 2012 activates after being pressed to generate a positioning signal. At the same time as the positioning signal is generated, the control circuit activates all the positioning indicator lights 2013 surrounding the pressure-sensitive switch 2012 to illuminate, providing visual positioning indication. The sensor array 2011 is used to initially detect the car's approach status, and the pressure-sensitive switch 2012 is used to accurately detect the car's arrival status and link the positioning indicator lights 2013 to provide arrival indication. The three work together to complete the position detection and indication functions.
[0025] As a technical optimization solution of this utility model, such as Figure 3 As shown, the air deflector 401 is fixedly installed at the foremost end of the auxiliary trigger 302 and covers the area in front of the trigger head 3022. The air deflector 401 is a cone-shaped structure with a forward opening, and its opening direction faces the front of the elevator. When the elevator car is running, the cone-shaped structure of the air deflector 401 guides the airflow and any floating debris in front to both sides of the trigger head 3022, preventing debris from directly impacting or adhering to the surface of the trigger head 3022. The cleaning rollers 402 are symmetrically installed on the left and right sides of the trigger head 3022 through roller brackets, and the rotation axis of each cleaning roller 402 is perpendicular to the elevator running direction. The rolling surface of the cleaning roller 402 slightly protrudes from the foremost contact surface of the trigger head 3022. When the elevator car is in a non- When the target area is in operation and the cleaning roller 402 accidentally comes into contact with the shaft sidewall or an obstacle, the cleaning roller 402 will first make contact and roll. Its rolling action will crush the dust or dirt on the contact surface. At the same time, the rolling surface of the cleaning roller 402 will physically isolate the trigger head 3022 from the obstacle, preventing the trigger head 3022 from directly contacting the obstacle and accidentally triggering the sensor array 2011. When the elevator car approaches the target floor and the cleaning roller 402 does not come into contact with the obstacle, the trigger head 3022 can smoothly extend to contact the sensing unit 201. The airflow guiding function of the deflector 401, together with the physical isolation and self-cleaning function of the cleaning roller 402, work together to prevent the auxiliary trigger 302 from being accidentally triggered in non-target areas.
[0026] As a technical optimization solution of this utility model, such as Figures 2 to 4 As shown, the dust cover 3031 is made of a flexible and wear-resistant material, and is in the shape of a corrugated tube or a telescopic sleeve, completely enclosing the elastic reset mechanism 303. The front end of the dust cover 3031 is fixedly connected to the rear root of the trigger head 3022 through a first annular sealing ring, and the rear end of the dust cover 3031 is fixedly connected to the front end of the guide sleeve 3023 through a second annular sealing ring. When the trigger head 3022 is pressed and drives the sliding guide rod 3021 to slide backward and compress the elastic reset mechanism 303, the corrugated part or telescopic part of the dust cover 3031 simultaneously undergoes compression deformation. When the trigger head 3022 moves against the elastic reset mechanism 303... When the dust cover 3031 slides forward to reset, the corrugated or telescopic part of the dust cover 3031 extends synchronously to return to its original state; the telescopic movement of the dust cover 3031 is always synchronized with the compression and extension movement of the elastic reset mechanism 303, forming a linkage; the dust cover 3031 forms a dynamic seal at the gap between the trigger head 3022 and the guide sleeve 3023 through the sealing connection at both ends and its own deformation, effectively preventing external dust, oil or foreign objects from entering the interior of the guide sleeve 3023, avoiding contamination of the elastic reset mechanism 303 or hindering the smooth movement of the sliding guide rod 3021, and ensuring the long-term reliable operation of the telescopic function of the auxiliary trigger 302.
[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment includes only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A position detection device of an elevator car, characterized by, include: Mounting bracket (1) is fixedly installed on the side wall of the elevator shaft; A position sensing component (2) is disposed on the mounting bracket (1) and includes a plurality of sensing units (201) arranged at intervals along the elevator running direction. A multi-level triggering mechanism (3) is installed on the side wall of the elevator car and corresponds to the position sensing component (2); The multi-level triggering mechanism (3) includes: The main trigger (301) is connected to the side wall of the car; An auxiliary trigger (302) is movably disposed on the front side of the main trigger (301) along the car running direction, and the trigger end of the auxiliary trigger (302) protrudes from the trigger end of the main trigger (301); An elastic reset mechanism (303) is provided between the auxiliary trigger (302) and the main trigger (301); The linkage limiting component (304) limits the relative range of motion between the auxiliary trigger (302) and the main trigger (301); When the elevator reaches the target floor, the auxiliary trigger (302) first contacts the corresponding sensing unit (201) and triggers the primary position signal, and the main trigger (301) then contacts the sensing unit (201) and triggers the positioning signal.
2. The elevator car position detection device as described in claim 1, characterized in that: The main trigger (301) includes: The cantilever plate (3011) has its vertical edge fixed to the side wall of the car; A trigger magnet (3012) is disposed at the front end of the horizontal edge of the cantilever plate (3011); A pressure sensing module (3013) is disposed on the horizontal side of the cantilever plate (3011).
3. The position detection device of an elevator car according to claim 2, characterized in that: The auxiliary trigger (302) includes: The sliding guide rod (3021) is set parallel to the elevator's running direction; The trigger head (3022) is fixed to the front end of the sliding guide rod (3021); Guide sleeve (3023) is fixed to the horizontal side of the cantilever plate (3011); The elastic reset mechanism (303) is sleeved on the sliding guide rod (3021), and its two ends abut against the inner wall of the guide sleeve (3023) and the trigger head (3022), respectively.
4. The position detection device of an elevator car according to claim 3, characterized in that: The linkage limiting component (304) includes: A limiting groove (3041) is formed on the side wall of the guide sleeve (3023); The limiting pin (3042) passes through the sliding guide rod (3021) and extends into the limiting groove (3041).
5. The position detection device of an elevator car according to claim 1, characterized in that: The mounting bracket (1) includes: Vertical guide rail (101) is fixed to the side wall of the shaft; A sliding base (102) is connected to the vertical guide rail (101); An angle adjustment plate (103) is movably connected to the sliding base (102).
6. The position detection device of an elevator car according to claim 1, characterized in that: The sensing unit (201) includes: The sensor array (2011) is arranged in a ring shape in the signal acquisition area; A pressure-sensitive switch (2012) is located at the center of the sensor array (2011); A positioning indicator light (2013) is arranged around the pressure-sensitive switch (2012); When the auxiliary trigger (302) contacts the sensor array (2011), it triggers a primary position signal. When the main trigger (301) presses the pressure-sensitive switch (2012), it triggers a positioning signal and activates the positioning indicator (2013).
7. The position detection device of an elevator car according to claim 3, characterized in that: The multi-level triggering mechanism (3) is further provided with an anti-accidental touch mechanism (4), which includes: A flow deflector (401) is disposed at the front end of the auxiliary trigger (302); Cleaning rollers (402) are disposed on both sides of the trigger head (3022).
8. The position detection device of an elevator car according to claim 3, characterized in that: The elastic reset mechanism (303) is covered with a dust cover (3031), and the two ends of the dust cover (3031) are respectively connected to the trigger head (3022) and the guide sleeve (3023).