An elevator guide rail testing device

Abstract

This utility model discloses an elevator guide rail detection device, belonging to the field of elevator detection technology. It includes a base; a set of traveling wheels symmetrically arranged on both sides of the bottom of the base; a laser ranging module disposed on the top of the base; and a floating detection mechanism, including: a floating frame slidably connected to the base; an elastic pre-compression wheel set installed at the lower part of the floating frame; guide wheels connected to the side of the floating frame; and a data processing unit connected to the laser ranging module. This utility model employs a floating detection mechanism with elastic pre-compression wheels that slides in conjunction with the base, achieving automatic centering and positioning through the V-shaped guide recesses of the traveling wheels. The dual-degree-of-freedom adjustment of the laser ranging module ensures continuous and high-precision acquisition of guide rail deformation data, achieving efficient and automated measurement of guide rail straightness and gauge, overcoming the shortcomings of traditional detection methods such as low efficiency and easy jamming.

Description

Technical Field

[0001] This utility model specifically relates to an elevator guide rail testing device, belonging to the field of elevator testing technology. Background Technology

[0002] As the guiding reference for the elevator car and counterweight, the installation accuracy of elevator guide rails (such as verticality, straightness, and gauge) directly determines the smoothness, comfort, and safety of elevator operation. During long-term operation or installation, guide rails may undergo deformations such as bending, twisting, or misalignment of joints. Traditional manual inspection methods (such as the plumb line method and the ruler method) are inefficient, subjective, and difficult to implement continuous measurements, failing to meet the demands of modern elevators for efficient installation, maintenance, and high-precision quality control. Therefore, developing efficient, accurate, and easy-to-operate guide rail inspection devices is crucial for ensuring elevator operational quality and preventing potential malfunctions.

[0003] Traditional elevator guide rail inspection methods generally face challenges such as low automation, poor environmental adaptability, and insufficient data continuity. Manual inspection is labor-intensive, inefficient, and easily affected by human factors. Some contact-based inspection equipment relies on fixed reference points or manual positioning, making it difficult to adapt to slight unevenness or oily environments on the guide rail surface, which may lead to measurement errors or jamming. Meanwhile, some existing inspection devices have limitations in walking stability and stable contact between the measuring probe and the guide rail, affecting the reliability of continuous measurement data. Furthermore, insufficient real-time processing and intuitive presentation of measurement data also restricts the improvement of on-site inspection efficiency. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing an elevator guide rail detection device, which can continuously and accurately collect guide rail deformation data, achieve high detection efficiency, and realize efficient and automated measurement of guide rail straightness and gauge, including a base;

[0005] The walking wheel sets are symmetrically arranged on both sides of the bottom of the base;

[0006] The laser ranging module is mounted on the top of the base;

[0007] Floating detection agencies include:

[0008] A floating frame is slidably connected to the base;

[0009] An elastic preload wheel assembly is installed at the lower part of the floating frame;

[0010] Guide wheels are connected to the side of the floating frame;

[0011] The data processing unit is connected to the laser ranging module via signal transmission.

[0012] Furthermore, the elastic preload wheel assembly includes four sets of preload wheels, two of which are symmetrically arranged at the front end of the floating frame, and the other two are symmetrically arranged at the rear end of the floating frame.

[0013] Each set of pre-compression wheels is installed on the floating frame via a movable connection structure, and an elastic element is provided between the movable connection structure and the inner wall of the floating frame.

[0014] Furthermore, the movable connection structure includes an axial limiting component and a linear guide component;

[0015] The two ends of the elastic element abut against the end face of the axial limiting member and the inner wall of the floating frame, respectively.

[0016] Furthermore, the floating frame is connected to the base via a sliding connection structure, the sliding connection structure comprising:

[0017] A fixed guide rail is provided on the base;

[0018] A sliding component is provided on the floating frame;

[0019] The sliding member is provided with a sliding groove that mates with the fixed guide rail, and the sliding groove and the fixed guide rail are in clearance fit.

[0020] Furthermore, the inner wall of the groove is fitted with a friction-reducing bushing, and the inner surface of the friction-reducing bushing is in sliding contact with the fixed guide rail.

[0021] Furthermore, the guide wheel is mounted on the floating frame via a position adjustment structure, which includes an eccentric adjustment component and a locking component.

[0022] Furthermore, the laser ranging module is mounted on the base via an angle adjustment bracket, which includes independent pitch adjustment components and horizontal adjustment components.

[0023] Furthermore, the walking wheel assembly consists of several walking wheels, and the rim of each walking wheel is provided with a guide recess, the sidewall of which forms an acute angle with the radial plane of the walking wheel.

[0024] Beneficial effects:

[0025] This patented device features a floating detection mechanism with elastic pre-compression wheels that slides into the base. Combined with the self-stabilizing design of the V-shaped guide recess of the traveling wheels, the device automatically maintains its centering position as the elevator guide rail moves. It also utilizes elastic elements to dynamically compensate for gaps caused by unevenness or oil contamination on the guide rail surface. Simultaneously, the dual-degree-of-freedom angle adjustment function of the laser ranging module ensures continuous and high-precision acquisition of guide rail deformation data. This significantly overcomes the shortcomings of traditional manual inspection, such as low efficiency, easy jamming of existing equipment, and discontinuous data, achieving efficient and automated measurement of guide rail straightness and gauge. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the floating frame of this utility model;

[0028] Figure 3 This is a schematic diagram of the floating frame and guide wheel of this utility model;

[0029] Figure 4 This is a schematic diagram of the preload wheel of this utility model;

[0030] Figure 5 This is a schematic diagram of the laser ranging module and data processing unit of this utility model;

[0031] Figure 6 This is a schematic diagram of the walking wheel of this utility model.

[0032] In the diagram: 1. Base; 2. Walking wheel assembly; 201. Walking wheel; 202. Guide recess; 3. Laser ranging module; 301. Angle adjustment bracket; 3011. Pitch adjustment assembly; 3012. Horizontal adjustment assembly; 4. Floating detection mechanism; 401. Floating frame; 402. Elastic pre-compression wheel assembly; 4021. Pre-compression wheel; 4022. Elastic element; 4023. Movable connection structure; 40231. Axial limiting component; 40232. Linear guide component; 403. Guide wheel; 4031. Position adjustment structure; 40311. Eccentric adjustment component; 40312. Locking component; 5. Data processing unit; 6. Sliding connection structure; 601. Fixed guide rail; 602. Sliding component; 603. Slide groove; 604. Anti-friction bushing. Detailed Implementation

[0033] 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.

[0034] Please see Figure 1-6 As shown, an elevator guide rail detection device includes a base 1 configured as a rigid frame structure to support all components, a top plane of the base 1 for mounting a laser ranging module 3, and symmetrically arranged mounting positions for the walking wheel set 2 on both sides of the bottom of the base 1.

[0035] The traveling wheel set 2 is fixed to the bottom of the base 1 by a wheel axle. The inclination angle of the side wall of the guide recess 202 of the traveling wheel 201 matches the side profile of the elevator guide rail. When the device moves along the guide rail, the inclined surface of the guide recess 202 contacts the guide rail to generate an automatic centering force, which forces the traveling wheel set 2 to always run in the center.

[0036] The laser ranging module 3 is installed on the top center area of ​​the base 1 via the angle adjustment bracket 301. The pitch adjustment component 3011 is located between the base 1 and the horizontal adjustment component 3012. The horizontal adjustment component 3012 is directly connected to the laser ranging module 3. When the pitch adjustment component 3011 is rotated, the horizontal adjustment component 3012 and the laser ranging module 3 are driven to change the pitch angle synchronously. When the horizontal adjustment component 3012 is rotated, only the laser ranging module 3 is driven to rotate around the vertical axis.

[0037] The floating frame 401 of the floating detection mechanism 4 forms a vertical sliding pair with the base 1 through the sliding connection structure 6. Four sets of elastic pre-compression wheel sets 402 are symmetrically installed on the lower part of the floating frame 401. The pre-compression wheel 4021 is suspended from the floating frame 401 through the movable connection structure 4023. The linear guide 40232 of the movable connection structure 4023 is fixed to the floating frame 401. The axial limiting member 40231 can slide axially along the linear guide 40232. When the elastic element 4022 is compressed, it pushes the axial limiting member 40231 to move towards the inner wall of the floating frame 401. The guide wheel 403 is installed on the side of the floating frame 401 through the position adjustment structure 4031. When the eccentric adjustment member 40311 rotates, it drives the center of the guide wheel 403 axle to move along the eccentric trajectory. After adjustment, it is pressed and fixed by the locking member 40312.

[0038] Specifically, the device moves via symmetrically arranged wheel sets 2 on both sides of the bottom of the base 1. The wheel rims of the wheel 201 are designed with V-shaped guide recesses 202, the sidewalls of which form an acute angle with the radial plane. When the device is placed on the elevator guide rail, the V-shaped guide recesses 202 engage with the top edges of the guide rail, achieving self-centering positioning using the centripetal force generated by the inclined contact. Simultaneously, the floating frame 401 of the floating detection mechanism 4 forms a vertical sliding fit with the base 1 via a sliding connection structure 6. Four sets of elastic pre-compression wheel sets 402 installed at the lower part of the floating frame 401 press tightly against the top surface of the guide rail. Each pre-compression wheel 4021 is connected to the floating frame 401 via a movable connection structure 4023, and continuous downward pressure is provided by an elastic element 4022, enabling the pre-compression wheel 4021 to dynamically compensate for the surface of the guide rail. Gaps caused by uneven surfaces or oil stains; the side of the floating frame 401 is also equipped with an eccentrically adjustable guide wheel 403, whose wheel surface is in close contact with the side of the guide rail to form a horizontal constraint; when the device moves along the guide rail, the undulation of the guide rail surface pushes the pre-compression wheel 4021, which in turn compresses the elastic element 4022 and drives the floating frame 401 to float vertically along the fixed guide rail 601, so that the entire detection mechanism is always stably in contact with the guide rail; during this process, the laser ranging module 3 installed on the top of the base 1 is precisely calibrated in both pitch and horizontal degrees of freedom through the angle adjustment bracket 301 to ensure that the laser beam is continuously and vertically shot at the same measurement point on the side wall of the guide rail. The distance data collected in real time is converted into continuous guide rail straightness deviation and track gauge value by the data processing unit 5 connected to the signal, and finally realizes fully automated high-precision detection.

[0039] As a technical optimization solution of this utility model, such as Figures 1 to 4 As shown, the movable connection structure 4023 is set perpendicular to the mounting plane of the floating frame 401. The end of the movable connection structure 4023 is provided with a limiting member to limit the range of movement and prevent the elastic element 4022 from being over-compressed. The two ends of the elastic element 4022 abut against the end face of the movable connection structure 4023 and the inner wall of the floating frame 401, respectively. When the pre-compression wheel 4021 is compressed, it pushes the movable connection structure 4023 to compress the elastic element 4022, so that the floating frame 401 floats vertically along the sliding connection structure 6. The inner wall of the floating frame 401 is provided with a guide groove to guide the linear movement of the movable connection structure 4023. The movable connection structure 4023 and the limiting member are connected in a detachable manner, such as by threaded connection or plug-in fixation.

[0040] As a technical optimization solution of this utility model, such as Figures 2 to 4As shown, the linear guide 40232 is fixed to the floating frame 401, and the axial limiting member 40231 is slidably mounted on the linear guide 40232. The linear guide 40232 is set in the same direction as the vertical movement direction of the floating frame 401. The end of the linear guide 40232 is provided with a limiting structure to constrain the movement range of the axial limiting member 40231, preventing excessive displacement of the axial limiting member 40231 that could cause the elastic element 4022 to fail. When the elastic element 4022 is compressed, the axial limiting member 40231 slides along the axial direction of the linear guide 40232, pushing the elastic element 4022 to exert force on the inner wall of the floating frame 401, thereby buffering external impacts. The inner wall of the floating frame 401 is provided with a mating groove to accommodate the linear guide 40232 and ensure movement guidance. The axial limiting member 40231 and the linear guide 40232 are connected by a detachable method, such as threaded fastening or pin fixing.

[0041] As a technical optimization solution of this utility model, such as Figures 1 to 3 As shown, the fixed guide rail 601 of the sliding connection structure 6 is oriented in the same direction as the movement direction of the floating frame 401. The sliding member 602 forms a clearance fit with the fixed guide rail 601 through the slide groove 603. When the floating frame 401 is subjected to force, it drives the sliding member 602 to move axially along the fixed guide rail 601. The end of the fixed guide rail 601 is provided with a limiting block to limit the stroke range of the sliding member 602 and prevent the slide groove 603 from disengaging from the fixed guide rail 601. The base 1 is provided with a fixing hole for installing the fixed guide rail 601. The sliding member 602 and the floating frame 401 are fixed in a detachable manner, such as by threaded connection or pin positioning. When the floating frame 401 is subjected to lateral force, the sliding member 602 is slightly offset in the slide groove 603. The position of the floating frame 401 is adaptively adjusted through the clearance fit.

[0042] As a technical optimization solution of this utility model, such as Figures 2 to 3 As shown, the friction-reducing bushing 604 is integrally fitted into the inner wall of the slide groove 603 through an interference fit. The inner surface of the friction-reducing bushing 604 maintains full circumferential sliding contact with the fixed guide rail 601. When the floating frame 401 is displaced by force, the sliding member 602 drives the friction-reducing bushing 604 to move axially along the fixed guide rail 601. The lubrication characteristics of the inner wall of the friction-reducing bushing 604 reduce the sliding friction resistance. The end of the slide groove 603 is provided with a flange structure to prevent the friction-reducing bushing 604 from falling off axially. The surface of the fixed guide rail 601 is hardened to enhance wear resistance. Anti-rotation pins are used between the friction-reducing bushing 604 and the slide groove 603 to prevent relative rotation. When the floating frame 401 vibrates, the friction-reducing bushing 604 absorbs high-frequency micro-amplitude vibrations through elastic deformation.

[0043] As a technical optimization solution of this utility model, such as Figure 3As shown, the eccentric adjustment component 40311 of the position adjustment structure 4031 is rotatably mounted on the side wall of the floating frame 401. The eccentric adjustment component 40311 has a mounting hole in the center for fixing the axle of the guide wheel 403. The locking component 40312 is set on the circumferential edge of the eccentric adjustment component 40311. When the eccentric adjustment component 40311 is rotated, the center of the axle of the guide wheel 403 will generate radial displacement with the eccentric contour, so as to realize the precise adjustment of the contact position between the guide wheel 403 and the guide rail. After the adjustment is in place, the locking component 40312 presses the eccentric adjustment component 40311 to fix it. The side wall of the floating frame 401 is provided with an arc-shaped limiting groove to constrain the rotation angle of the eccentric adjustment component 40311. The locking component 40312 adopts a threaded fastening method and is provided with an anti-loosening washer to prevent vibration from loosening.

[0044] As a technical optimization solution of this utility model, such as Figure 5 As shown, the pitch adjustment component 3011 is installed between the base 1 and the laser ranging module 3, and the horizontal adjustment component 3012 is located at the connection between the pitch adjustment component 3011 and the laser ranging module 3. The pitch adjustment component 3011 changes the vertical angle of the laser ranging module 3 through a rotating shaft, and the horizontal adjustment component 3012 adjusts the horizontal pointing angle of the laser ranging module 3 through a horizontal rotating shaft. When the pitch adjustment component 3011 is rotated, the laser ranging module 3 rotates around the pitch axis. When the horizontal adjustment component 3012 is rotated, the laser ranging module 3 rotates around the vertical axis. The base 1 is provided with an arc-shaped receiving groove to accommodate the range of pitch angle changes. After adjustment, the pitch adjustment component 3011 and the horizontal adjustment component 3012 are fixed respectively by locking bolts and anti-loosening washers.

[0045] As a technical optimization solution of this utility model, such as Figure 6 As shown, the guide recesses 202 of the rim of the traveling wheel 201 are symmetrically arranged on both sides of the traveling wheel 201. The acute angle of the sidewall of the guide recess 202 makes the cross-section of the recess have an outwardly expanding V-shaped structure. When the traveling wheel set 2 moves along the elevator guide rail, the side of the guide rail is embedded in the guide recess 202. The sidewall of the guide rail contacts the inclined surface of the guide recess 202 to generate a centripetal force, which forces the traveling wheel 201 to automatically center and position itself. The end of the rim of the traveling wheel 201 is provided with a flange structure to prevent the guide recess 202 from disengaging from the guide rail. The traveling wheel 201 is made of non-metallic composite material to reduce operating noise. The inclined surface of the guide recess 202 is mirror polished to reduce sliding friction resistance.

[0046] 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.

[0047] 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. An elevator guide rail detection device, characterized in that, include: Base (1); The walking wheel set (2) is symmetrically arranged on both sides of the bottom of the base (1); A laser ranging module (3) is disposed on the top of the base (1); The floating detection mechanism (4) includes: A floating frame (401) is slidably connected to the base (1); An elastic preload wheel assembly (402) is installed at the lower part of the floating frame (401); Guide wheel (403) is connected to the side of the floating frame (401); The data processing unit (5) is connected to the laser ranging module (3) via signal.

2. The elevator guide rail detection device as described in claim 1, characterized in that: The elastic preload wheel assembly (402) includes four sets of preload wheels (4021), two of which are symmetrically arranged at the front end of the floating frame (401), and the other two are symmetrically arranged at the rear end of the floating frame (401); Each set of pre-compression wheels (4021) is installed on the floating frame (401) through a movable connection structure (4023), and an elastic element (4022) is provided between the movable connection structure (4023) and the inner wall of the floating frame (401).

3. The elevator guide rail detection device as described in claim 2, characterized in that: The movable connection structure (4023) includes an axial limiting member (40231) and a linear guide member (40232). The two ends of the elastic element (4022) abut against the end face of the axial limiting member (40231) and the inner wall of the floating frame (401), respectively.

4. The elevator guide rail detection device as described in claim 2, characterized in that: The floating frame (401) is connected to the base (1) via a sliding connection structure (6), the sliding connection structure (6) comprising: A fixed guide rail (601) is provided on the base (1); A sliding member (602) is provided on the floating frame (401); The sliding member (602) is provided with a groove (603) that cooperates with the fixed guide rail (601), and the groove (603) and the fixed guide rail (601) are in clearance fit.

5. The elevator guide rail detection device as described in claim 4, characterized in that: The inner wall of the groove (603) is fitted with a friction-reducing bushing (604), and the inner surface of the friction-reducing bushing (604) slides in contact with the fixed guide rail (601).

6. The elevator guide rail detection device as described in claim 1, characterized in that: The guide wheel (403) is mounted on the floating frame (401) via a position adjustment structure (4031), which includes an eccentric adjustment component (40311) and a locking component (40312).

7. The elevator guide rail detection device as described in claim 1, characterized in that: The laser ranging module (3) is mounted on the base (1) via an angle adjustment bracket (301). The angle adjustment bracket (301) includes a pitch adjustment component (3011) and a horizontal adjustment component (3012) that are independent of each other.

8. The elevator guide rail detection device as described in claim 1, characterized in that: The walking wheel assembly (2) consists of several walking wheels (201). The rim of the walking wheel (201) is provided with a guide recess (202). The side wall of the guide recess (202) forms an acute angle with the radial plane of the walking wheel (201).

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