Elevator landing door push force detection device

Abstract

The application discloses an elevator landing door thrust detection device and belongs to the elevator detection field. The device comprises at least two groups of spring tension gauges, the spring tension gauges are provided with an adjusting assembly for adjusting the horizontal position of the spring tension gauges, a tension assembly for applying a constant tension to the spring tension gauges is arranged on the adjusting assembly, the tension assembly is rotationally folded through a folding unit two, a folding support assembly for overall support is arranged at the bottom of the tension assembly, a distance measuring assembly for detecting the landing door gap is integrated on the tension assembly, and a positioning assembly is arranged at the bottom of the folding support assembly. The elevator landing door thrust detection device can pre-calibrate the tension direction, output a constant tension of 150N, realize accurate alignment of the detection end and the force point, and is stable in positioning and supporting, thereby effectively solving the problems of manual operation force deviation, unstable force value, alignment based on experience and the like, and improving detection reliability.

Description

Technical Field

[0001] This invention relates to the field of elevator testing technology, and in particular to an elevator landing door thrust testing device. Background Technology

[0002] During elevator installation, commissioning, routine maintenance, and safety performance testing, controlling the gap between elevator landing doors is a crucial aspect of ensuring passenger safety. As a safety barrier separating the elevator shaft from the waiting hall, the size of the gap between the elevator landing doors directly affects their safety performance against forced entry. When a force of 150N is applied to the most unfavorable point of the landing door, the total gap between the two doors must be controlled within 45mm. This prevents people from forcibly opening the doors with their bare hands, thus avoiding accidents such as falls and crushing, and ensuring the personal safety of passengers waiting for the elevator and during elevator operation.

[0003] Currently, the industry standard for testing elevator landing door gaps is to manually pull the landing door using a handheld spring gauge. During testing, the operator must hold the spring gauge by hand, align the hook with the most unfavorable point of the landing door gap, manually apply and maintain a pulling force of 150N, and simultaneously observe or measure whether the landing door gap meets the standard requirements.

[0004] In the tensile testing of the door gap, the existing manual operation method of using a handheld tensile gauge has defects. Manual operation is prone to problems such as deviation of the tensile direction and instability of the constant tensile force of 150N. At the same time, the alignment of the force point depends entirely on the experience of the staff, which leads to the test results being greatly affected by human factors and making it difficult to objectively present the true safety status of the door gap.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0006] This invention provides an elevator landing door thrust detection device to solve the problems of force direction deviation and instability of 150N constant force that are easy to occur during manual operation.

[0007] The present invention adopts the following technical solution: an elevator landing door thrust detection device. It includes at least two sets of spring tension gauges, each spring tension gauge being equipped with an adjustment component for adjusting its horizontal position. The adjustment component is provided with a tension component for applying a constant tension to the spring tension gauge. The tension component is rotatably folded together with the adjustment component via a folding unit. A folding support component for overall support is mounted at the bottom of the tension component. A distance measuring component for real-time detection of the landing door gap is integrated on the tension component. A positioning component for positioning the device to the ground is installed at the bottom of the folding support component.

[0008] Furthermore, the adjustment component includes a chassis base, on which an installation sleeve is embedded. A movable plate extends through the installation sleeve, and both ends of the movable plate have limiting blocks. The installation sleeve is locked by a locking unit to prevent the movable plate from sliding. A set of the limiting blocks is connected to the spring tension gauge.

[0009] Furthermore, the locking unit includes a mounting component fixed to the mounting sleeve, and a vertically arranged screw is threaded onto the mounting component. The screw is adapted to pass through the mounting sleeve and threadedly engage with the movable plate. The movable plate has three sets of fixing holes, and the two sets of fixing holes on both sides correspond to two sets of limiting blocks that are respectively attached to the positions at both ends of the mounting sleeve.

[0010] Furthermore, the spring tension gauge is provided with a tension end, which adopts a concave structure design, and a hook is rotatably connected inside by a torsion spring. In the initial state, the hook is in a vertical position.

[0011] Furthermore, the tension assembly includes a recessed base. The two ends of the positioning frame of the expansion unit are detachably connected to the upper end face of the inner wall of the recessed base by fasteners. A bidirectional lead screw is rotatably mounted on the recessed base via bearings. A turntable is mounted on one end of the bidirectional lead screw that protrudes from the recessed base. Two sets of oppositely arranged sliding seats are threaded onto the bidirectional lead screw. The two sets of sliding seats are respectively connected to the base of the folding unit and the two sets of spring tension gauges. At least two sets of guide shafts are movably connected between the two sets of sliding seats. The two ends of the guide shafts are fixedly connected to the recessed base.

[0012] Furthermore, the second folding unit includes a mounting plate fixed to a sliding seat, on which a ratchet is rotatably mounted, and the ratchet is fixedly connected to the bottom of the chassis seat; the mounting plate is rotatably provided with ratchet teeth via a rotating shaft, and a limit rod extends through its side, one end of the limit rod extending into the mounting plate and abutting against the ratchet teeth; a spring is sleeved on the limit rod, one end of the spring being connected to the mounting plate and the other end being connected to the ratchet teeth, so as to apply pressure to the ratchet teeth to make them tightly adhere to the ratchet teeth, and the number of teeth of the ratchet is adapted to the ratchet teeth.

[0013] Furthermore, the ranging component includes a rotating disk rotatably connected via a stacking unit one. The stacking unit one and the stacking unit two have similar structures. The ratchet one of the stacking unit one is defined as ratchet two. The stacking unit one is rotatably connected to the rotating disk via ratchet two. A sliding plate is horizontally slidably mounted on the rotating disk. A measuring scale is vertically slidably mounted on one end of the sliding plate. Multiple sets of pulleys are rotatably mounted on the side of the measuring scale near the elevator landing door, and a spirit level is embedded in its surface.

[0014] Furthermore, a sliding groove is provided on the sliding plate, and a sliding block is slidably disposed in the sliding groove. The side of the sliding block is adapted to fit against two sets of buckles. The two sets of buckles are respectively connected to the side of the two sets of movable plates. One side of the buckle is provided with an insert that engages with the sliding block, so as to make the sliding plate move synchronously with the adjustment component.

[0015] Furthermore, the folding support assembly includes a central rod, one end of which is connected to the bottom surface of the recessed base. A hinge seat is fixedly mounted on one end of the central rod, and three sets of support rods are equidistantly hinged to the hinge seat along the circumference. Each set of support rods is hinged with a transverse tension reinforcing rod. The ends of the three sets of transverse tension reinforcing rods away from the support rods are hinged to a bushing, which is movably sleeved on the central rod. The end of the support rod away from the hinge seat is fixed with a connecting end, which is connected to the positioning assembly.

[0016] Furthermore, the positioning component includes a spiral sleeve, which is threadedly connected to the connecting end. The bottom surface of the spiral sleeve is fixedly fitted with a suction cup by two sets of support columns, and a manual operating lever for controlling its adsorption and release is correspondingly fitted on the suction cup.

[0017] The above-mentioned at least one technical solution adopted in this invention can achieve the following beneficial effects: An elevator landing door thrust detection device, through adjusting the horizontal position of the spring tension gauge by an adjustment component and cooperating with the angle positioning function of the folding unit, can pre-calibrate the tension direction, solving the problem of tension direction deviation that is prone to occur in manual operation, and ensuring that the force application direction corresponds to the preset direction of the detection point; secondly, the tension component can stably output and maintain a constant tension of 150N, replacing the unstable force application mode of manual hand operation, avoiding force value deviation caused by human fluctuations, and ensuring the accuracy and consistency of the detected force value; thirdly, the distance measuring component and the adjustment component are linked to ensure that the gap detection end and the tension application point are always aligned, eliminating the operation method of manually aligning the force point based on experience, and eliminating the interference of human factors on the detection results; fourthly, the folding support component and the positioning component form a stable detection benchmark, avoiding the impact of device displacement on data, and can objectively present the true safety status of the landing door gap, improving the reliability of the detection results. Attached Figure Description

[0018] The accompanying drawings, which are provided to further illustrate the invention and constitute a part of this invention, are illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention.

[0019] In the attached diagram: Figure 1 This is an overall schematic diagram of an elevator landing door thrust detection device according to this application; Figure 2 for Figure 1Exploded view; Figure 3 for Figure 2 Enlarged view of point A; Figure 4 for Figure 2 Enlarged view of point B; Figure 5 for Figure 2 A schematic diagram of a partial structure; Figure 6 for Figure 5 Enlarged view of point C; Figure 7 for Figure 5 A schematic diagram of a partial structure; Figure 8 for Figure 7 Enlarged view of point D; Figure 9 for Figure 5 Enlarged view of point E; Figure label: 1. Adjustment assembly; 11. Chassis base; 12. Mounting sleeve; 13. Handle; 14. Movable plate; 15. Limit stop; 16. Mounting component; 17. Screw; 18. Spring tension gauge; 19. Positioning frame; 110. Central shaft; 111. First thrust component; 112. Second thrust component; 113. U-shaped frame; 114. Rotating shaft; 115. Fixing sleeve; 116. Wing bolt.

[0020] 2. Tension assembly; 21. Notched base; 22. Two-way lead screw; 23. Guide shaft; 24. Turntable; 25. Sliding seat; 3. Folding support assembly; 31. Center rod; 32. Hinge seat; 34. Support rod; 35. Horizontal tension reinforcement rod; 36. Connecting end; 4. Distance measuring component; 41. Stacking unit one; 411. Ratchet two; 42. Rotating disk; 43. Sliding plate; 44. Measuring ruler; 45. Bulb spirit level; 46. Sliding groove; 47. Sliding block; 48. Buckle; 49. Insert block; 410. Pulley; 5. Positioning component; 51. Spiral sleeve; 52. Support column; 53. Suction cup; 54. Manual operating lever; 6. Folding unit two; 61. Mounting plate; 62. Ratchet one; 63. Limiting rod; 64. Spring; 65. Ratchet tooth; 66. Rotating shaft. Detailed Implementation

[0021] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0022] The technical solutions provided by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Reference Figure 1 and Figure 4 As shown, this invention provides an elevator landing door thrust detection device, including at least two sets of spring tension gauges 18, an adjustment component 1, a tension component 2, a folding support component 3, a distance measuring component 4, a positioning component 5, and a stacking unit 6. The adjustment component 1 serves as a horizontal position adjustment mechanism for the spring tension gauges 18, adjusting their lateral position to ensure alignment with the landing door gap detection point. The tension component 2 applies a stable tension to the spring tension gauges 18, and the tension component 2 and the adjustment component 1 are folded together via the stacking unit 6. The folding support component 3 provides overall support for the device, and its foldable design balances stability during operation with portability for storage and transportation. The distance measuring component 4 captures data on the gap changes of the landing door during the force application process, enabling measurement during the detection process. The positioning component 5 securely anchors the device to the ground, preventing displacement of the device during the detection process from affecting the results.

[0024] The adjustment component 1 in this invention is mainly used to achieve flexible adjustment and locking of the horizontal position of the spring tension gauge 18. Preferably, the adjustment component 1 includes a disc-shaped base 11. A long strip-shaped mounting sleeve 12 extending horizontally is embedded in the top surface of the base 11. A movable plate 14 is movably inserted through the mounting sleeve 12. Its two ends extend outward and form limiting blocks 15 with a size larger than the port of the mounting sleeve 12, which can prevent the movable plate 14 from falling out of the mounting sleeve 12. The side wall of the mounting sleeve 12 is equipped with a locking unit, which can fasten and lock the movable plate 14 after it slides into place. A set of limiting blocks 15 near the detection end of the movable plate 14 is rigidly connected to the housing of the spring tension gauge 18 to ensure that the positions of the two are synchronized. When inspecting the center door of an elevator, the operator can push the movable plate 14 along the axis of the mounting sleeve 12, causing the spring tension gauge 18 to move horizontally to the target inspection point. At this time, the locking unit can be operated to quickly fix the position of the movable plate 14, preventing the spring tension gauge 18 from shifting due to the reaction force during the inspection process, thus ensuring that the direction of the tension is accurately aligned with the preset direction of the inspection point. At the same time, the horizontal displacement of the movable plate 14 can be directly transmitted to the spring tension gauge 18, realizing flexible adjustment of its inspection position to meet the gap inspection requirements of different specifications of center doors.

[0025] Reference Figure 4As shown, in order to lock and position the movable plate 14 and prevent it from sliding and shifting due to force during the detection process, thereby ensuring the stability of the tension applied by the spring tension gauge 18, the locking unit includes a mounting part 16 fixed on the mounting sleeve 12. A vertically arranged screw 17 is threaded onto the mounting part 16. The axis of the screw 17 is perpendicular to the inner cavity of the mounting sleeve 12. The screw 17 is adapted to pass through the mounting sleeve 12 from top to bottom and achieve threaded engagement with the movable plate 14. By rotating the top handwheel of the screw 17, the movable plate 14 can be vertically pressed and fixed to the bottom of the inner cavity of the mounting sleeve 12 to form a rigid lock. The movable plate 14 has three sets of fixing holes (not shown in the figure). The diameter of the two sets of fixing holes near the two sides matches the matching structure of the limit block 15, and their positions correspond to the two sets of limit blocks 15 respectively fitting into the extreme positions at both ends of the mounting sleeve 12. When actually testing the center-parting door, slide the movable plate 14 to the middle position, rotate the screw 17 so that its lower end is inserted into the middle positioning hole of the movable plate 14 and tightened, so that the movable plate 14 can be stably locked. In this state, the position of the spring tension gauge 18 is just right to meet the double-sided gap detection requirements of the center-parting door, which can ensure that the tension is applied synchronously and stably to the detection point, avoiding the offset problem caused by unilateral force.

[0026] Reference Figure 4 As shown, in order to enable the pull end to easily extend into the gap of the elevator landing door and to stably engage after extension to transmit the pull force, the spring tension gauge 18 is provided with a pull end (not shown in the figure). An expansion unit is connected between the two sets of spring tension gauges 18. The expansion unit is suitable for applying a pushing force to the elevator landing door under the action of the tension component 2. The expansion unit includes an inverted T-shaped positioning frame 19. The positioning frame 19 has an extension end. A central shaft 110 is vertically fixed on the extension end. A first thrust member 111 and a second thrust member 112 are movably sleeved on the central shaft 110. A torsion spring (not shown in the figure) is connected between the first thrust member 111 and the second thrust member 112. The torsion spring is coaxially sleeved on the central shaft 110 to provide a rebound force, so that the two form an opening and closing structure similar to scissors. The ends of the first thrust member 111 and the second thrust member 112 that are far apart from each other are movably connected to the U-shaped frame 113 through the rotating shaft 114; the outer sides of the two sets of U-shaped frames 113 are fixed with fixing sleeves 115, and the fixing sleeves 115 are locked and fixed to the tension end of the spring tension gauge 18 by the butterfly bolts 116. This connection structure allows the tension of the spring tension gauge 18 to be transmitted to the thrust member through the U-shaped frame 113, and the thrust member applies a thrust to both sides of the door gap through its own opening and closing action.

[0027] In actual operation, under the natural rebound force of the torsion spring, the far ends of the first thrust member 111 and the second thrust member 112 that are used to extend into the gap of the landing door are in a closed state by default. At this time, the overall width of the two is adapted to the minimum opening size of common landing door gaps, and can be smoothly extended into the gap.

[0028] Reference Figure 2 As shown, in order to achieve synchronous reverse translation of the two sets of spring tension gauges 18 and apply a pushing force to the landing door to complete the detection, the tension assembly 2 includes a recessed base 21. The two ends of the positioning frame 19 of the expansion unit are detachably connected to the upper end face of the inner wall of the recessed base 21 by fasteners. A bidirectional lead screw 22 is rotatably mounted on the recessed base 21 through bearings. A turntable 24 is mounted on one end of the bidirectional lead screw 22 that protrudes from the recessed base 21. Two sets of oppositely arranged sliding seats 25 are threadedly connected to the bidirectional lead screw 22. At the same time, the two sets of sliding seats 25 are also connected to the base seats 11 of the two sets of spring tension gauges 18 through the stacking unit 2 6. At least two sets of guide shafts 23 are movably connected between the two sets of sliding seats 25. The two ends of the guide shafts 23 are fixedly connected to the recessed base 21 to form a translational guiding constraint.

[0029] In actual operation, by holding the turntable 24 and rotating the bidirectional lead screw 22, the two sets of sliding seats 25 can be moved synchronously along the guide shaft 23 in a direction that brings them closer to each other. When the two sets of chassis seats 11 are close to each other and in contact, it can be determined that they have moved to the default position. Then, the positioning frame 19 of the expansion unit is connected to the two sets of sliding seats 25, and the fixing sleeves 115 of the two sets of thrust members are locked to the tension end of the spring tension gauge 18 through the wing bolts 116, thus completing the docking of the test structure.

[0030] Next, the turntable 24 is rotated in the opposite direction to drive the bidirectional lead screw 22. At this time, the two sets of sliding seats 25 will move away from each other along the guide shaft 23. On the one hand, the sliding seats 25 drive the spring tension gauge 18 to move synchronously through the stacking unit 2 6. On the other hand, the positioning frame 19 is pulled open synchronously with the two sets of sliding seats 25, thereby driving the detection ends of the two sets of thrust members to open to both sides of the door gap. During this process, the tension of the spring tension gauge 18 is transmitted to the thrust member through the U-shaped frame 113, so that the thrust member continuously applies a thrust to the door. The operator observes the force value display interface of the tension gauge in real time. When the force value is stably maintained at 150N, the adjustment is stopped. At this time, the total gap on both sides of the door is detected synchronously to ensure that its value meets the safety standard of ≤45mm.

[0031] Reference Figures 5-6As shown, in order to achieve the rotational positioning of the chassis base 11, while meeting the requirements for folding and storage after testing, and improving the portability and testing adaptability of the device, the second folding unit 6 includes a mounting plate 61 fixed on the sliding base 25. A ratchet 62 is rotatably mounted on the mounting plate 61, and the ratchet 62 is fixedly connected to the bottom of the chassis base 11. The mounting plate 61 is rotatably provided with a ratchet 65 through a rotating shaft 66. A limit rod 63 moves through its side, and one end of the limit rod 63 extends into the mounting plate 61 and abuts against the ratchet 65. The tooth shape of the ratchet 65 is adapted to the tooth groove of the ratchet 62. A spring 64 is sleeved on the limit rod 63. One end of the spring 64 is fixedly connected to the mounting plate 61, and the other end is fixedly connected to the ratchet 65. The preload of the spring 64 continuously applies pressure to the ratchet 65, so that it always fits tightly against the tooth surface of the ratchet 62, ensuring a stable meshing state. The number of teeth of the ratchet 62 is designed to match the meshing distance of the ratchet 65, forming a fixed step rotation angle of 30 degrees.

[0032] During testing, the operator can directly rotate the chassis base 11, causing the ratchet 62 to rotate relative to the mounting plate 61. The ratchet 65 slides along the tooth surface of the ratchet 62 under the action of the spring 64. Every 30 degrees of rotation, it will engage with the corresponding tooth groove to achieve positioning. The angle of the spring tension gauge 18 can be flexibly adjusted to adapt to different testing orientation requirements. After the test is completed, the outer expansion unit can be disassembled, and then the chassis base 11 can be rotated to a storage position parallel to the tension component 2. At this time, the ratchet 65 firmly maintains the storage posture by relying on the unidirectional positioning effect of the ratchet, avoiding angular displacement during transportation or storage, and effectively reducing the overall space occupied by the device.

[0033] Reference Figures 7-8 As shown, in order to realize the measurement of the door gap, the portable stacking of the component, and the synchronous movement with the adjustment component 1, the ranging component 4 includes a rotating disk 42 rotatably connected to the stacking unit 41. The stacking unit 41 and the stacking unit 6 have similar structures. The ratchet 62 of the stacking unit 41 is defined as the ratchet 411. The stacking unit 41 is rotatably connected to the rotating disk 42 through the ratchet 411. A sliding plate 43 is horizontally slidably mounted on the rotating disk 42. A measuring ruler 44 is vertically slidably mounted on one end of the sliding plate 43. Multiple sets of pulleys 410 are rotatably mounted on the side of the measuring ruler 44 near the elevator door. When the pulleys 410 are in contact with the door surface, they can roll with the change of the door gap. A spirit level 45 is embedded in the surface of the measuring ruler 44, which can monitor the horizontal state of the measuring ruler 44 in real time to ensure that it remains horizontal during measurement. A sliding groove 46 is provided on the sliding plate 43, and a sliding block 47 is slidably assembled in the sliding groove 46. One side of the sliding block 47 is an adaptive contact surface. The contact surface of the sliding block 47 is suitable for contacting two sets of buckle rods 48. The two sets of buckle rods 48 are respectively fixedly connected to the sides of two sets of movable plates 14. Each set of buckle rods 48 is provided with an insert 49 on the side near the sliding block 47. The shape of the insert 49 matches the adaptive slot of the sliding block 47 to ensure that the connection is firm and secure after insertion, thereby realizing the synchronous linkage between the sliding plate 43 and the adjustment component 1. In actual scenarios involving double-sided detection of the center-parting door, the sliding block 47 is slid to the middle position of the sliding groove 46, so that the two sets of latches 48 connected to the two sets of sliding plates 43, and their inserts 49 simultaneously engage with the sliding block 47, ensuring that the corresponding measuring rulers 44 can be moved synchronously when the adjustment components 1 on both sides move. When the movable plate 14 of the adjusting component 1 slides horizontally, the rigid engagement between the latch 48 and the insert 49 drives the sliding block 47 to move synchronously in a linear motion along the sliding groove 46. This, in turn, drives the sliding plate 43 and the measuring ruler 44 mounted on it to move synchronously with the movable plate 14. This linkage structure ensures that the detection end of the measuring ruler 44 is always aligned with the point of action of the spring tension gauge 18, avoiding distortion of gap measurement data due to positional deviation, and realizing real-time acquisition of changes in door gap.

[0034] Reference Figure 5 and Figure 7 As shown, to achieve both foldable portability and stable support during operation, the folding support assembly 3 includes a central rod 31. One end of the central rod 31 is fitted with a hinge seat 32, and the other end of the central rod 31 is connected to the bottom surface of the recessed base 21. Three sets of support rods 34 are equidistantly hinged along the circumferential direction on the hinge seat 32. Each set of support rods 34 is hinged with a horizontal tension reinforcing rod 35. The ends of the three sets of horizontal tension reinforcing rods 35 away from the support rods 34 are hinged together with a bushing (not shown in the figure). The bushing is movably fitted onto the central rod 31. Through the cooperation of the horizontal tension reinforcing rods 35 and the bushing, a triangular stable support structure can be formed. The end of the support rod 34 away from the hinge seat 32 is fixed with a connecting end 36, which is connected to the positioning assembly 5 to achieve folding storage and stable support of the assembly. When unfolded, simply flip the three sets of support rods 34 outwards, and slide the bushings downwards along the central rod 31, causing the horizontal tensioning rod 35 to tighten until the bushings slide to the preset limit position of the central rod 31. At this point, the three sets of support rods 34 form a stable support surface with the ground, and together with the positioning component 5, the entire device is stably positioned. When folded up, slide the bushings upwards to loosen the horizontal tensioning rod 35, and the three sets of support rods 34 can be folded and folded towards the central rod 31, reducing the size of the device and making it easy to carry and store. This folding support component 3 requires no additional tools and can be unfolded and folded up with simple sliding and flipping operations, ensuring structural stability in the working state while also taking into account folding portability, perfectly adapting to the movement and use needs of elevator door inspection sites.

[0035] Reference Figures 2-3 As shown, in order to achieve rapid positioning, stable fixation and convenient disassembly of the device on the ground, the positioning component 5 includes a spiral sleeve 51. The spiral sleeve 51 is threadedly connected to the connecting end 36. The bottom surface of the spiral sleeve 51 is fixedly equipped with a suction cup 53 by two sets of support columns 52. The suction cup 53 is made of a highly elastic and wear-resistant material. Its adsorption surface has high flatness and can closely adhere to the ground to form a sealed space. The suction cup 53 is equipped with a manual operating rod 54 for controlling its adsorption and release. When in use, after attaching the suction cup 53 to the ground, press down on the manual operating lever 54 to expel the air from the suction cup 53, allowing it to firmly adhere to the ground and achieve quick positioning and stable fixation of the device; when disassembling, push the manual operating lever 54 upward to allow air to enter the suction cup 53, release the adhesion, and easily separate the device from the ground.

[0036] In this embodiment, a handle 13 is preferably fixedly provided on the side of both the chassis base 11 and the rotating disk 42. The handle 13 is made of non-slip material and has a textured surface to enhance grip friction. Its installation position is in line with the hand's force application habits, making it easy for the operator to apply force, so as to facilitate the rotation and folding operation of the ranging component 4 and the adjustment component 1, and to store them parallel to the pulling component 2, thereby improving the portability of the device. When folding, the adjustment component 1 and the ranging component 4 can be quickly rotated synchronously to a storage state parallel to the tension component 2 with the help of the handle 13, reducing the overall space occupied by the device, which not only improves the ease of operation, but also enhances the portability of the device, and adapts to the needs of movement and storage at the testing site.

[0037] Working Principle: Before testing, the device must be unfolded and anchored securely to provide a stable foundation for subsequent testing. The operator switches the device from its stored state to its working state by folding the support assembly 3: the three sets of support rods 34 are flipped outwards, and the bushing slides downwards along the central rod 31, causing the horizontal tensioning rod 35 to tighten until the bushing reaches the preset limit position of the central rod 31. At this point, the three sets of support rods 34 and the horizontal tensioning rod 35 form a triangular stable support structure, creating a stable support surface with the ground. Then, the positioning assembly 5 secures the device to the ground: after the suction cup 53 is attached to the ground, the manual operating lever 54 is pressed down to expel the air from the suction cup 53, using atmospheric pressure to adhere the suction cup 53 to the ground, preventing the device from shifting during testing; if the device position needs to be adjusted, the manual operating lever 54 is pushed upwards to release the adhesion, making operation convenient. Perform initial adjustments to the tension assembly 2 and the adjustment assembly 1: Hold the turntable 24 of the tension assembly 2 and rotate the two-way lead screw 22 to drive the two sets of sliding seats 25 to move towards each other along the guide shaft 23 until the base seats 11 of the two sets of adjustment assemblies 1 fit together, and confirm that the sliding seats 25 are in the default position.

[0038] Afterwards, the position calibration of the adjustment component 1 and the linkage debugging of the ranging component 4 are completed. This step must be completed before the external expansion unit is assembled to avoid the positioning frame 19 occupying the detection end space after assembly, which would obstruct or interfere with the operation of the ranging component 4. For the detection scenario of the center-parting door on both sides, slide the sliding block 47 in the sliding groove 46 of the ranging component 4 to the middle position, so that the inserts 49 of the two sets of latches 48 are inserted with the sliding block 47, realizing the synchronous linkage of the adjustment component 1 and the ranging component 4. Then, adjust the horizontal position of the spring tension gauge 18 through the adjustment component 1: push the movable plate 14 along the straight direction of the mounting sleeve 12 to move the spring tension gauge 18 to the target detection point, rotate the screw 17 of the locking unit so that its lower end is inserted into the middle positioning hole of the movable plate 14 and tightened, completing the rigid locking of the movable plate 14, ensuring the stability of the position of the spring tension gauge 18, and ensuring that the subsequent tension direction corresponds to the preset direction of the detection point. In addition, the detection angle of the spring tension gauge 18 can be adjusted by using the folding unit 2 6: hold the handle 13 on the side of the chassis 11 and rotate the chassis 11, which will drive the ratchet 1 62 to rotate relative to the mounting plate 61. Under the pre-tightening force of the spring 64, the ratchet 65 will be engaged in the corresponding tooth groove every 30 degrees to achieve positioning. Finally, the assembly of the expansion unit is completed: the positioning frame 19 of the expansion unit is fixed to the upper end face of the inner wall of the recessed base 21 with fasteners, and at the same time, the fixing sleeves 115 on the two sets of thrust members (first thrust member 111 and second thrust member 112) are locked and fixed to the tension ends of the two sets of spring tension gauges 18 by butterfly bolts 116, forming a force transmission link.

[0039] The expansion unit is driven by the tension component 2 to apply a stable thrust to the landing door, while the gap change data is collected simultaneously by the ranging component 4. First, the expansion unit is connected to the landing door: because the first thrust component 111 and the second thrust component 112 are in a closed state by default under the natural rebound force of the torsion spring, which is suitable for the minimum opening size of common landing door gaps, the operator can directly insert the closed end into the landing door gap. Then, the thrust is applied: the turntable 24 is rotated in the opposite direction to drive the bidirectional lead screw 22. Under the limiting constraint of the guide shaft 23, the two sets of sliding seats 25 are translated along the bidirectional lead screw 22 in a direction away from each other. On the one hand, the two sets of spring tension gauges 18 are moved synchronously through the stacking unit 2 6, and on the other hand, the two sets of thrust components are pushed synchronously to both sides of the landing door gap through the positioning frame 19.

[0040] During the force transmission process, the tension of the spring tension gauge 18 is transmitted to the pushing component through the U-shaped frame 113 and the rotating shaft 114, causing the pushing component to continuously apply a pushing force to the landing door. The operator observes the force value display of the spring tension gauge 18 in real time, and stops adjusting when the force value is stably maintained at 150N. During this process, the distance measuring component 4 synchronously realizes the real-time acquisition of the landing door gap change: if the movable plate 14 of the adjusting component 1 has a horizontal displacement due to force or calibration, it will drive the sliding block 47 to move synchronously in a straight line along the sliding groove 46 through the rigid insertion of the latch 48 and the insert 49, ensuring that the detection end of the measuring ruler 44 is always aligned with the force application point of the spring tension gauge 18. The pulley 410 on the measuring ruler 44 rolls with the landing door gap change to avoid scratching the landing door surface. At the same time, the level bubble 45 monitors the horizontal state of the measuring ruler 44 in real time, and finally captures the gap change of the landing door under the action of 150N pushing force, and synchronously detects the total gap on both sides of the landing door to determine whether it meets the safety standard of ≤45mm. After testing, proceed with the following steps: component disassembly, repositioning, and folding for storage to improve portability. First, disassemble the external expansion unit, loosen the butterfly bolt 116, disconnect the fixing sleeve 115 from the spring tension gauge 18, and simultaneously separate the positioning frame 19 from the sliding seat 25. Then, reposition the components: rotate the turntable 24 to bring the two sets of sliding seats 25 back to their default positions, rotate the screw 17 to release the lock of the movable plate 14, and reset the movable plate 14; release the sliding block 47 from the insertion of the latch 48, completing the linkage separation of the ranging component 4 and the adjusting component 1. Finally, the device is folded and stored: Using the anti-slip grips 13 on the side of the base 11 and the rotating disk 42, the adjustment component 1 and the distance measuring component 4 are rotated to the storage position parallel to the tension component 2 via the folding unit 2 6 and the folding unit 1 41, respectively. The storage posture is maintained by the one-way positioning action of the ratchet 65. The bushing of the folding support component 3 is slid upward to fold the three sets of support rods 34 toward the center rod 31, reducing the overall size of the device and making it easy to carry and store.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An elevator landing door thrust detection device, characterized in that: include At least two sets of spring tension gauges (18), each spring tension gauge (18) is provided with an adjustment component (1) for adjusting its horizontal position, and the adjustment component (1) is provided with a tension component (2) for applying a constant tension to the spring tension gauge (18); The tension component (2) is rotated and folded by the folding unit (6) and the adjustment component (1). The bottom of the tension component (2) is equipped with a folding support component (3) for overall support. The tension component (2) is integrated with a distance measuring component (4) for real-time detection of the gap between the floor doors. The bottom of the folding support assembly (3) is equipped with a positioning assembly (5) for positioning the device on the ground; The adjustment component (1) includes a chassis base (11), on which an installation sleeve (12) is embedded, and a movable plate (14) is movably passed through the installation sleeve (12); The second folding unit (6) includes a mounting plate (61) fixed on a sliding seat (25). A ratchet wheel (62) is rotatably mounted on the mounting plate (61). The ratchet wheel (62) is fixedly connected to the bottom of the chassis seat (11). The mounting plate (61) is rotatably provided with a ratchet tooth (65) via a rotating shaft (66). A limit rod (63) is movably passed through its side. One end of the limit rod (63) extends into the mounting plate (61) and abuts against the ratchet tooth (65). A spring (64) is sleeved on the limit rod (63). One end of the spring (64) is connected to the mounting plate (61) and the other end is connected to the ratchet tooth (65) to apply pressure to the ratchet tooth (65) so that it is tightly attached to the ratchet wheel (62). The number of teeth of the ratchet wheel (62) is adapted to the number of teeth of the ratchet tooth (65). The ranging component (4) includes a rotating disk (42) rotatably connected to a stacking unit (41). The stacking unit (41) and the stacking unit (6) have similar structures. The ratchet (62) of the stacking unit (41) is defined as the ratchet (411). The stacking unit (41) is rotatably connected to the rotating disk (42) through the ratchet (411). A sliding plate (43) is horizontally slidably mounted on the rotating disk (42). A measuring ruler (44) is vertically slidably mounted on one end of the sliding plate (43). The measuring ruler (44) is rotatably mounted with multiple sets of pulleys (410) on the side near the elevator door. A level bubble (45) is embedded in its surface. The sliding plate (43) is provided with a sliding groove (46), and a sliding block (47) is slidably disposed in the sliding groove (46). The side of the sliding block (47) is adapted to fit against two sets of buckles (48). The two sets of buckles (48) are respectively connected to the side of the two sets of movable plates (14). One side of the buckle (48) is provided with an insert (49) that engages with the sliding block (47).

2. The elevator landing door thrust detection device according to claim 1, characterized in that: The movable plate (14) has limit blocks (15) at both ends. The movable plate (14) is slidably locked by a locking unit on the mounting sleeve (12). A set of limit blocks (15) is connected to the spring tension gauge (18).

3. The elevator landing door thrust detection device according to claim 2, characterized in that: The locking unit includes a mounting component (16) fixed on the mounting sleeve (12). A vertically arranged screw (17) is threaded onto the mounting component (16). The screw (17) is adapted to pass through the mounting sleeve (12) and be threaded into the movable plate (14). The movable plate (14) has three sets of fixing holes. The positions of the two sets of fixing holes on both sides correspond to the positions of the two sets of limit blocks (15) respectively attached to the positions at both ends of the mounting sleeve (12).

4. The elevator landing door thrust detection device according to claim 1, characterized in that: The spring tension gauge (18) is provided with a tension end (19), which adopts a concave structure design. Inside, a hook (110) is rotatably connected by a torsion spring. In the initial state, the hook (110) is in a vertical state.

5. The elevator landing door thrust detection device according to claim 2, characterized in that: The tension assembly (2) includes a recessed base (21), on which a bidirectional lead screw (22) is rotatably mounted via a bearing. A turntable (24) is mounted on one end of the bidirectional lead screw (22) that protrudes from the recessed base (21). Two sets of oppositely arranged sliding seats (25) are threaded onto the bidirectional lead screw (22). The two sets of sliding seats (25) are respectively connected to the base seats (11) of the two sets of spring tension gauges (18) via the stacking unit (6). At least two sets of guide shafts (23) are movably connected between the two sets of sliding seats (25). The two ends of the guide shafts (23) are fixedly connected to the recessed base (21).

6. The elevator landing door thrust detection device according to claim 5, characterized in that: The folding support assembly (3) includes a central rod (31), one end of which is connected to the bottom surface of the recessed base (21). A hinge seat (32) is fixedly mounted on one end of the central rod (31). Three sets of support rods (34) are hinged at equal intervals along the circumference on the hinge seat (32). A horizontal tension reinforcing rod (35) is hinged on each set of support rods (34). A bushing is hinged to the end of the three sets of horizontal tension reinforcing rods (35) away from the support rod (34). The bushing is movably sleeved on the central rod (31). A connecting end (36) is fixed to the end of the support rod (34) away from the hinge seat (32). The connecting end (36) is connected to the positioning assembly (5).

7. The elevator landing door thrust detection device according to claim 6, characterized in that: The positioning component (5) includes a spiral sleeve (51), which is threadedly connected to the connecting end (36). The bottom surface of the spiral sleeve (51) is fixedly fitted with a suction cup (53) by two sets of support columns (52). The suction cup (53) is fitted with a manual operating lever (54) for controlling its adsorption and release.

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