Elevator toe guard inspection device
By designing an elevator foot guard inspection device including a base plate, a front push rod, a thrust sensor, a threaded sleeve and a rear push rod, the problem of thrust instability caused by manual push in the prior art is solved, and more accurate measurement results are achieved.
Patent Information
- Application Number
- CN202421269729.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-04
AI Technical Summary
The existing elevator foot guard inspection methods rely on manual pushing, making it difficult to ensure stable thrust, resulting in inaccurate measurement results.
An elevator foot guard inspection device is designed, including a base plate, front push rod, thrust sensor, thread sleeve and rear push rod. Through the cooperation of the front push rod and the rear push rod, the thrust sensor is used to record the thrust applied to the foot guard to ensure that The accuracy of measurement.
Accurate force control and measurement, provide more stable and reliable thrust, making the measurement results more accurate, and are suitable for layer doors of different widths, with strong versatility.
Smart Images
Figure CN222454180U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator detection equipment, in particular to an elevator footboard inspection device. Background Art
[0002] The elevator car toe guard is located at the bottom of the elevator car facing the floor door. When the elevator is leveled normally, it is at the bottom of the car and the floor door sill. The design of the toe guard must take safety into consideration to prevent the distance between the bottom of the car and the floor from being too large, thereby avoiding the creation of a large gap, and it should be ensured that it will not slide or deform.
[0003] The car toe guard is an important protective device that can effectively protect trapped passengers from accidental injuries. The main purpose of the design is to prevent passengers from falling into the elevator shaft due to unstable center of gravity when the elevator breaks down and the trapped passengers force open the car door and floor door and try to jump out of the car. Or, during the rescue process before leveling, prevent trapped passengers from falling into the elevator shaft and causing safety accidents of falling into the shaft. Therefore, the correct way to deal with being trapped in the elevator is to stay calm, use the emergency alarm device in the car to keep in touch with the rescue service, and patiently wait for the rescue personnel to arrive.
[0004] The elevator car toeboard should be 5cm from the vertical part of the toeboard at the floor station. 2 When a thrust of 300N is applied to a circular or square area, its elastic deformation should not be greater than 35mm, and the vertical height of the car footboard should not be less than 0.75m, and the width should not be less than the width of the floor station entrance. In the existing inspection method, the inspector needs to use manual pushing to push the thrust sensor toward the footboard, and then measure the deformation of the footboard with a ruler. This measurement method is relatively primitive and has low accuracy. From the test results, it is difficult to ensure a stable thrust because it is pushed toward the car manually, which brings some uncertainty to the test results. Utility Model Content
[0005] The utility model aims to provide an elevator toe plate inspection device, which can realize accurate force control and measurement, provide more stable and reliable thrust, and make the measurement result more accurate.
[0006] According to the purpose of the utility model, the utility model provides an elevator toe guard inspection device, including a base plate, a front push rod, a thrust sensor, a threaded sleeve and a rear push rod, the front push rod is arranged on the front side of the base plate, the rear push rod is arranged on the rear side of the base plate, the thrust sensor is arranged between the front push rod and the rear push rod, the threaded sleeve is fixed on the base plate, and the rear push rod passes through the threaded sleeve and is connected to the threaded sleeve by a thread.
[0007] Furthermore, a hook is provided at the front end of the bottom plate, and the hook is used to be clamped into a guide rail in the sill of the landing door.
[0008] Furthermore, a front push rod bracket is fixed to one end of the base plate, and the front push rod passes through the front push rod bracket and is slidably connected to the front push rod bracket.
[0009] Furthermore, a guide groove distributed along the axial direction is provided on the side wall of the front push rod, and a positioning pin matched with the guide groove is provided on the inner wall of the front push rod bracket.
[0010] Furthermore, a rear push rod bracket is fixed to the rear end of the base plate, and the threaded sleeve is fixed on the rear push rod bracket.
[0011] Furthermore, a detachable rotating handle is provided at the tail of the rear push rod.
[0012] Furthermore, a thrust bearing is provided between the thrust sensor and the rear push rod, and the thrust bearing is fixed on the base plate.
[0013] Furthermore, oblique push rods are respectively provided on both sides of the bottom plate, one end of the oblique push rod is connected to the bottom plate, and the other end of the oblique push rod acts on the door frame of the landing door.
[0014] Furthermore, a bidirectional threaded sleeve is provided in the middle of the oblique push rod.
[0015] Furthermore, a contact block is hingedly connected to the end portion of the oblique push rod, one side of the contact block is hingedly connected to the oblique push rod via a hinge, and the other side of the contact block is provided with a rubber sheet.
[0016] The technical solution of this utility model is suitable for elevator maintenance and inspection work to ensure the safe operation of the elevator, especially in the detection of the structural integrity and performance stability of the toeboard, which can realize accurate force control and measurement, provide more stable and reliable thrust, and make the measurement result more accurate. It is suitable for landing doors of different widths and has strong versatility. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 This is a schematic diagram of the installation position structure of an embodiment of the utility model;
[0019] Figure 2It is a schematic diagram of the structure of an embodiment of the utility model;
[0020] Figure 3 Another structural schematic diagram of an embodiment of the utility model;
[0021] In the figure: 1-footboard; 2-door frame; 3-door floor; 4-bottom plate; 5-door sill; 6-oblique push rod; 7-bidirectional threaded sleeve; 8-front push rod; 9-front push rod bracket; 10-thrust sensor; 11-rear push rod bracket; 12-threaded sleeve; 13-rotating handle; 14-rear push rod; 15-thrust bearing; 41-hook; 61, contact block; 81-guide groove. DETAILED DESCRIPTION
[0022] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0025] Example 1
[0026] like Figure 1-Figure 3 As shown,
[0027] An elevator toeboard inspection device is a tool designed to ensure that the strength and durability of an elevator toeboard meet safety standards. The elevator toeboard inspection device comprises a bottom plate 4, a front push rod 8, a thrust sensor 10 and a rear push rod 14.
[0028] A hook 41 is mounted at the front end of the bottom plate 4, and the hook 41 is used to be inserted into the guide rail in the door sill 5, thereby fixing the position of the entire device.
[0029] A front push rod bracket 9 is fixed to one end of the bottom plate 4 close to the car, and a retractable front push rod 8 is slidably arranged inside the front push rod bracket 9, and the rear end of the front push rod 8 is connected to the rear push rod 14 through a thrust sensor 10. The thrust sensor 10 can ensure that the thrust applied to the toe guard can be accurately recorded and adjusted during the measurement process.
[0030] The front end of the front push rod 8 is used to contact the toe guard 1. In order to ensure that the front push rod 8 is pushed forward smoothly, a guide groove 81 distributed along the axial direction is opened on the side wall of the front push rod 8, and a positioning pin cooperating with the guide groove 81 is opened on the inner wall of the front push rod bracket 9. The guide groove 81 cooperates with the positioning pin to prevent the front push rod 8 from rotating inside the front push rod bracket 9.
[0031] A rear push rod bracket 11 is fixed to the rear end of the bottom plate 4, and a threaded sleeve 12 is fixed to the rear push rod bracket 11. The threaded sleeve 12 is threadedly sleeved on the outside of the rear push rod 14, and the rear push rod 14 is adjusted by the threaded sleeve 12. Through the setting of the threaded sleeve 12, the rear push rod 14 can be rotated to control the rear push rod 14 to move forward or backward.
[0032] A detachable rotating handle 13 is provided at the tail of the rear push rod 14, and the rotating handle 13 is used to manually adjust the thrust of the rear push rod 14. The tail of the rear push rod 14 is an external hexagonal or external square structure, and the connecting end of the rotating handle 13 and the rear push rod 14 is an internal hexagonal or internal square structure. The rear push rod 14 and the rotating handle 13 are simultaneously equipped with a hexagonal or square detachable structure for easy disassembly and connection.
[0033] A thrust bearing 15 is arranged between the thrust sensor 10 and the rear push rod 14 . The thrust bearing 15 is fixed on the base plate 4 . The thrust bearing 15 is used to ensure the normal rotation of the rear push rod 14 .
[0034] In order to ensure that the hook head 41 can be reliably stuck in the guide rail in the landing door sill 5, it is necessary to apply a force to the bottom plate 4 towards the landing door floor 3. Therefore, inclined push rods 6 are respectively provided on both sides of the bottom plate 4, and the bottom plate 4 applies a force to the landing door floor 3 by the inclined push rods 6 acting on the landing door frame 2.
[0035] In order to facilitate the inclined push rod 6 to act on the floor door frame 2 and improve the contact between the two, a contact block 61 is hinged at the end of the inclined push rod 6. The contact block 61 is made of hard material. One side of the contact block 61 is hingedly connected to the inclined push rod 6 by a hinge, and the other side of the contact block 61 is provided with a rubber sheet. The rubber sheet is used to increase the friction between the contact block 61 and the floor door frame 2 when they are in contact, thereby improving the connection strength between the inclined push rod 6 and the floor door frame 2 after external force is applied.
[0036] One end of the inclined push rod 6 is connected to the bottom plate 4, and the other end of the inclined push rod 6 acts on the door frame 2 through the hinge block to stabilize the position of the bottom plate 4. The extension and contraction of the inclined push rod 6 is driven by rotating the two-way threaded sleeve 7, thereby adjusting the pressure applied by the bottom plate 4 to the floor 3 of the door to ensure the stable fit between the hook head 41 and the guide rail.
[0037] When the utility model is in use:
[0038] Set the position of the device: park the car at an appropriate height, and the hook 41 of the bottom plate 4 is inserted into the guide rail of the landing door sill 5;
[0039] Position the inclined push rod 6: place the ends of the inclined push rods 6 on both sides of the bottom plate 4 against the inner side of the door frame 2 of the landing door, and adjust the inclined push rods 6 by rotating the two-way threaded sleeve 7 so that the ends of the inclined push rods 6 squeeze the door frame 2 of the landing door to ensure the stability of the bottom plate 4;
[0040] Measure the initial test distance: record the initial distance between the toeboard 1 and the landing door sill 5;
[0041] Apply thrust and measure: rotate the rear push rod 14 by rotating the handle 13. The rear push rod 14 moves forward under the action of the threaded sleeve 12, pushing the front push rod 8 to apply thrust to the toe board 1. Observe the magnitude of the thrust through the thrust value displayed by the thrust sensor 10. When the thrust sensor 10 displays a preset value (such as 300N), measure the distance between the toe board 1 and the door sill 5 again.
[0042] Calculate the deformation: compare the distance difference between the two measurements to obtain the deformation of the toe guard 1.
[0043] In the above embodiment, the deformation amount can also be directly measured by the present device. A retractable measuring ruler can be fixed on the upper surface of the base plate 4, and a card plate can be fixed on the upper surface of the base plate 4. The measuring ruler is clamped in the card plate, and the measuring ruler can move back and forth in the card plate. When measuring, the measuring ruler is moved forward so that the front end of the measuring ruler is against the toe guard 1, which is recorded as the initial distance; when a thrust is applied to the toe guard 1 by the front push rod 8, the measuring ruler is pushed forward again to measure the distance after deformation, and then the difference between the two measured distances is compared to obtain the deformation amount of the toe guard 1.
[0044] The utility model can realize accurate force control and measurement. Compared with manual pushing, the device can provide more stable and reliable thrust, making the measurement result more accurate. The utility model has strong adaptability and is suitable for landing doors of different widths, and has strong versatility. The device is suitable for elevator maintenance and inspection work to ensure the safe operation of the elevator, especially in the detection of the structural integrity and performance stability of the toeboard.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. An elevator toeboard inspection device, characterized in that: It includes a base plate, a front push rod, a thrust sensor, a threaded sleeve and a rear push rod. The front push rod is arranged on the front side of the base plate, the rear push rod is arranged on the rear side of the base plate, the thrust sensor is arranged between the front push rod and the rear push rod, the threaded sleeve is fixed on the base plate, and the rear push rod passes through the threaded sleeve and is connected to the threaded sleeve by threads.
2. The elevator toeboard inspection device according to claim 1, characterized in that: The front end of the bottom plate is provided with a hook head, and the hook head is used for being clamped into the guide rail in the sill of the landing door.
3. The elevator toe guard inspection device according to claim 1, characterized in that: A front push rod bracket is fixed at one end of the bottom plate, and the front push rod passes through the front push rod bracket and is slidably connected to the front push rod bracket.
4. The elevator toeboard inspection device according to claim 3, characterized in that: A guide groove distributed along the axial direction is provided on the side wall of the front push rod, and a positioning pin matched with the guide groove is provided on the inner wall of the front push rod bracket.
5. The elevator toeboard inspection device according to claim 1, characterized in that: A rear push rod bracket is fixed to the rear end of the base plate, and the threaded sleeve is fixed on the rear push rod bracket.
6. The elevator toeboard inspection device according to claim 1, characterized in that: The tail of the rear push rod is provided with a detachable rotating handle.
7. The elevator toeboard inspection device according to claim 1, characterized in that: A thrust bearing is arranged between the thrust sensor and the rear push rod, and the thrust bearing is fixed on the bottom plate.
8. The elevator toeboard inspection device according to claim 1, characterized in that: An oblique push rod is respectively arranged on both sides of the bottom plate, one end of the oblique push rod is connected to the bottom plate, and the other end of the oblique push rod acts on the door frame of the landing door.
9. The elevator toeboard inspection device according to claim 8, characterized in that: A bidirectional threaded sleeve is arranged in the middle of the oblique push rod.
10. The elevator toeboard inspection device according to claim 8, characterized in that: A contact block is hingedly connected to the end of the oblique push rod, one side of the contact block is hingedly connected to the oblique push rod through a hinge, and a rubber sheet is arranged on the other side of the contact block.