CN113865849B - An elevator landing door strength testing system - Google Patents

Abstract

The utility model belongs to the technical field of safety detection of elevator landing doors, and particularly relates to an elevator landing door strength test system; the utility model comprises an impact assembly, a mounting assembly and a detection assembly which are sequentially arranged, wherein the impact assembly comprises a first base, an electromagnetic track arranged on the first base, an electromagnetic slide block connected with the electromagnetic track in a sliding way, a rotating seat arranged at the top of the electromagnetic slide block, a support connected with the rotating seat in a rotating way, a first vertical guide rail arranged on the outer side wall of the support, a vertical slide block connected with the first vertical guide rail in a sliding way, a hinged support arranged at the outer end of the vertical slide block, a rotating block connected with the hinged support in a rotating way and a collision rod movably arranged on the rotating block, the mounting assembly comprises a second base, a pair of second vertical guide rails and a pair of horizontal rods, and the detection assembly comprises a third base and a detection plate; the utility model can effectively solve the problems of limited measurement data, poor display of measurement results and the like in the prior art.

Description

An elevator landing door strength testing system

Technical field

The invention relates to the technical field of safety detection of elevator landing doors, and in particular to an elevator landing door strength testing system.

Background technique

Usually the first part that passengers touch when taking a vertical elevator is the landing door of the elevator. The function of the landing door is to tightly close the entrance and exit of the hoistway on each floor to prevent passengers from coming into contact with components in the hoistway on the floor, thereby avoiding accidents such as shearing or falling into the hoistway.

As a modern means of transportation, the number of elevators is increasing year by year, and their safety has attracted more and more public attention. In recent years, as several elevator landing door accidents have been exposed, the mechanical strength of landing doors has also begun to receive attention.

The patent document with application number: CN201620954287.6 discloses a testing device for the mechanical strength of elevator landing doors, including a test stand, wherein: the test stand is provided with a landing door fixing device, a pendulum and a triggering device. The door fixing device is installed on one side of the test frame to fix the door to be tested. The pendulum is suspended from the top in front of the door fixing device through a wire rope, and the pendulum is placed at the contact point of the door to be tested. center, and the horizontal distance between the pendulum and the landing door to be measured is less than 15mm, and the pendulum is connected through the traction of the lifting and triggering device. The utility model effectively solves the actual reliability problem of elevator landing doors, can evaluate and test landing doors of various types and parameter characteristics, and improves the safety performance of elevator landing doors.

However, there are still the following shortcomings in its practical application:

First, the measurement data is limited because it only detects the stress and deformation of the elevator landing door under dynamic impact force, but cannot detect the stress and deformation of the elevator landing door under static pressure.

Second, the display of the measurement results is not good, because the user cannot clearly see the amount of dent after the landing door is hit (especially when the dent size is small, it is more difficult to find); at the same time, the user cannot clearly see the dent during the test. Obtain the dynamic curve of the deformation amount of the elevator landing door as the external force changes.

Contents of the invention

The technical problem to be solved by the present invention is to provide an elevator floor door strength testing system in view of the shortcomings of the existing technology.

In order to solve the above technical problems, an elevator landing door strength testing system of the present invention includes an impact component, an installation component and a detection component arranged in sequence;

The impact assembly includes a first base, an electromagnetic track provided on the first base, an electromagnetic slider slidably connected to the electromagnetic track, a rotating base provided on the top of the electromagnetic slider, a pillar rotatably connected to the rotating base, and a A first vertical guide rail on the outer wall of the pillar, a vertical slide block slidably connected to the first vertical guide rail, a hinge seat provided at the outer end of the vertical slide block, a rotating block rotatably connected to the hinge seat, and a rotating block movably mounted on the rotating block the striker;

The installation assembly includes a second base, a pair of second vertical guide rails erected front and rear symmetrically on the second base, and a pair of horizontal rods movably installed between the two second vertical guide rails;

The detection component includes a third base and a detection plate erected on the third base.

As a possible implementation, further, longitudinal guide rails are provided on the side walls of the contact ends of the first base, the third base and the second base, and the stroke direction of the longitudinal guide rail is horizontal and consistent with the stroke direction of the electromagnetic track. Vertically, two longitudinal slide blocks are symmetrically provided on the second base, and the two longitudinal slide blocks are respectively slidably connected in corresponding longitudinal guide rails.

As a possible implementation, further, the outer ends of the first base and the third base are each provided with a longitudinal motor, the output end of the longitudinal motor is provided with a longitudinal screw, and the rod body of the longitudinal screw is movable through In the corresponding longitudinal guide rail, the rod body of the longitudinal screw rod is also screwed in the longitudinal screw groove on the corresponding longitudinal slide block.

As a possible implementation, further, a set of locking screw grooves perpendicular to its central axis are provided on the pillar, and matching locking screws are screwed into the locking screw grooves. The working ends of the screw are offset by the rotating base.

As a possible implementation, further, the ends of the active end of the locking screw are rotatably connected with movable heads, and the active surfaces of the active ends of the movable heads are provided with matching anti-slip pads.

As a possible implementation, further, a set of deceleration springs are symmetrically provided on the side wall at the end of the electromagnetic track's stroke, and the other ends of the deceleration springs are fixed on the same deceleration plate.

As a possible implementation, further, the first vertical guide rail is symmetrically provided with a set of first circular holes along its stroke direction, and the vertical slide block is penetrated with a first circular groove that matches the positioning hole, The vertical slide block is fixed on the first vertical guide rail through a first bolt and a first nut matching the first circular hole and the first circular groove; a pressure sensor is provided between the rotating block and the striker.

As a possible implementation, further, a striking head is detachably installed on the left and right ends of the striking rod.

As a possible implementation, further, the second vertical guide rail is provided with a set of second circular holes along its stroke direction, and the ends of the two horizontal ends are penetrated with second circular grooves matching the second circular holes. , the horizontal rod is fixed on the two second vertical guide rails through a second bolt and a second nut matching the second circular hole and the second circular groove, and the two horizontal rods are provided with openings on the bottom walls close to each other. There is a longitudinal snap-in groove, and a set of snap-in screw grooves that lead to the snap-in slot are symmetrically provided on the side wall of the rear end of the horizontal rod. The snap-in screw slots are all threaded with snap-in bolts. The same All the clamping bolts on the horizontal rod are rotationally connected to the same limiting plate, and the limiting plate is arranged in the clamping groove.

As a possible implementation, further, distance sensors are densely distributed on the surface of one end of the detection board close to the second base.

The present invention adopts the above technical solutions and has the following beneficial effects:

1. In the present invention, the impact component, the installation component and the detection component are added in sequence. The impact component includes a first base, an electromagnetic track provided on the first base, an electromagnetic slider slidably connected to the electromagnetic track, and an electromagnetic slider disposed on the first base. The rotating seat at the top of the electromagnetic slider, the pillar rotatably connected to the rotating seat, the first vertical guide rail provided on the outer wall of the pillar, the vertical slide block slidably connected to the first vertical guide rail, and the hinge provided at the outer end of the vertical slide block. base, a rotating block rotatably connected to the hinge base, and a striker movably mounted on the rotating block. The installation assembly includes a second base, a pair of second vertical guide rails erected front and rear symmetrically on the second base, and two movably mounted Design of a pair of horizontal rods between a second vertical rail. In this way, the user can fix the elevator landing door by installing the component, and then the user can set the impact area, the area of the impact area, the shape and material of the impact object, the impact force and the direction of the impact through the impact component. The user can also choose Dynamic impact and static pressure detection methods are used for elevator landing doors. This effectively improves the ability of the product of the present invention to measure data under various force conditions.

2. In the present invention, the impact component, the installation component and the detection component are added in sequence. The detection component includes a third base and a detection plate erected on the third base, and the detection plate is densely covered on the board near one end of the second base. There is a distance sensor design. In this way, the external controller can monitor the deformation amount on the back side of the elevator landing door in real time through the detection board, and draw the deformation curve of each point on the back side of the elevator landing door over time, and then calculate the deformation amount on the front side of the elevator landing door through a special algorithm. The deformation curve at the impact point is finally output on the computer display screen in real time. This achieves the effect that the product of the present invention has better display of measurement results.

Description of the drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments:

Figure 1 is an intuitive diagram from a first perspective of the present invention;

Figure 2 is a partially cutaway exploded view of the impact assembly from a second perspective of the present invention;

Figure 3 is an exploded view of the installation assembly from a third perspective of the present invention;

Figure 4 is an exploded view of the detection component from a partial cross-section from a fourth perspective of the present invention;

Figure 5 is an exploded view of the locking bolt partially cut away from a fifth perspective of the present invention;

Figure 6 is a visual diagram of the horizontal rod from the sixth perspective of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

As shown in Figures 1-6, the present invention provides an elevator landing door strength testing system, which includes an impact component, an installation component and a detection component arranged in sequence; the impact component includes a first base 1, a The electromagnetic track 2, the electromagnetic slider 3 slidably connected to the electromagnetic track 2, the rotating base 4 provided on the top of the electromagnetic slider 3, the pillar 5 rotatably connected to the rotating base 4, and the first support member arranged on the outer wall of the pillar 5. The vertical guide rail 6, the vertical slide block 7 slidably connected to the first vertical guide rail 6, the hinge seat 8 provided at the outer end of the vertical slide block 7, the rotating block 9 rotatably connected to the hinge seat 8, and the rotating block 9 is movably installed. The striker 10; the installation assembly includes a second base 11, a pair of second vertical guide rails 12 erected front and rear symmetrically on the second base 11, and a horizontal rod 13 movably installed between the two second vertical guide rails 12; the detection assembly It includes a third base 14 and a detection board 15 erected on the third base 14.

Longitudinal guide rails 16 are provided on the side walls of the contact ends of the first base 1 and the third base 14 with the second base 11. The stroke direction of the longitudinal guide rail 16 is horizontal and perpendicular to the stroke direction of the electromagnetic track 2. The second base 11 is symmetrically Two longitudinal sliders 17 are provided, and the two longitudinal sliders 17 are respectively slidably connected in the corresponding longitudinal guide rails 16; the outer ends of the first base 1 and the third base 14 are each provided with a longitudinal motor 18, and the output of the longitudinal motor 18 A longitudinal screw 19 is provided at the end. The rod of the longitudinal screw 19 is movably connected in the corresponding longitudinal guide rail 16, and the rod of the longitudinal screw 19 is also screwed in the longitudinal groove 20 on the corresponding longitudinal slider 17. In this way, the user can control the second base 11 to move longitudinally through the longitudinal motor 18, so that the elevator landing door 37 fixed on the installation assembly has a longitudinal offset relative to the impact assembly, so that the impact assembly can impact the elevator floor. The entire panel of the door 37 has impact points.

The pillar 5 is provided with a set of locking screw grooves 21 perpendicular to its central axis. The locking screw grooves 21 are all screwed to matching locking screws 22. The active ends of the locking screws 22 are against the rotating base 4, so that The user can fix the pillar 5 on the rotating seat 4 through the locking screw 22, thereby preventing the pillar 5 from rotating on the rotating seat 4, thereby ensuring that the direction of the impact assembly when impacting the elevator landing door 37 remains unchanged; lock The ends of the action end of the tightening screw 22 are rotatably connected with movable heads 23. The action surfaces of the action ends of the movable heads 23 are provided with matching anti-slip pads 24, which can effectively reduce the mechanical impact of the locking screw 22 on the rotating base 4. damage.

A set of deceleration springs 25 are symmetrically provided on the side wall of the end of the stroke of the electromagnetic track 2, and the other ends of the deceleration springs 25 are fixed on the same deceleration plate 26, which can effectively prevent the electromagnetic slider 3 from directly hitting the first base. 1 occurs, it is worth noting that both the deceleration spring 25 and the deceleration plate 26 are made of non-magnetic metal materials.

The first vertical guide rail 6 is symmetrically provided with a set of first round holes along its stroke direction. The vertical slider 7 has a first round groove that matches the positioning hole. The vertical slider 7 passes through the first round hole and with the third A matching first bolt 27 and first nut 28 with a circular groove are fixed on the first vertical guide rail 6 so that the user can fix the height of the hinge base 8 in the vertical direction to ensure that when the impact assembly hits the elevator landing door 37 The direction is unchanged (it is worth noting that the hinge base 8 is also provided with a limiting device that limits the angle of the rotating block 9 to remain unchanged).

A pressure sensor 29 is provided between the rotating block 9 and the striker 10, so that the external controller can monitor the actual impact force of the striker 10 on the elevator landing door 37 through the pressure sensor 29 in real time.

A striking head 30 is detachably installed on the left and right ends of the striking rod 10. The material, quality and shape of the striking head 30 can be different, so that the impact of the elevator landing door 37 in real life can be simulated more accurately and comprehensively. situation.

The second vertical guide rail 12 is provided with a set of second round holes along its stroke direction. The ends of both horizontal ends are penetrated by second round grooves matching the second round holes. The horizontal rod 13 passes through the second round holes and is connected with the second round hole. The second bolts 31 and the second nuts 32 with matching circular grooves are fixed on the two second vertical guide rails 12. The bottom walls of the two horizontal rods 13 close to each other are provided with longitudinal snap-in grooves 33. The rear ends of the horizontal rods 13 are A set of snap-in screw grooves leading to the snap-in slots 33 are symmetrically provided on the side wall, and snap-in bolts 34 are screwed into the snap-in screw slots. All snap-in bolts 34 on the same horizontal rod 13 are rotationally connected to the same thread. On the limiting plate 35, the limiting plate 35 is arranged in the engaging groove 33, so that the user can reliably fix different types of elevator landing doors 37 on the installation assembly.

The detection plate 15 is densely covered with distance sensors 36 on one end of the board close to the second base 11, so that the external controller can monitor the deformation amount on the back of the elevator landing door 37 through the detection board 15 in real time, and draw the elevator landing door over time. The deformation curve of each point on the back of the elevator landing door 37 is then calculated through a special algorithm to obtain the deformation curve at the impact point on the front of the elevator landing door 37. Finally, the measurement results are output in real time on the computer display screen.

The above are the embodiments of the present invention. For those of ordinary skill in the art, according to the teachings of the present invention, all equivalent changes, Modifications, substitutions and variations should all fall within the scope of the present invention.

Claims (7)

1. An elevator landing door strength test system which is characterized in that: the device comprises an impact assembly, a mounting assembly and a detection assembly which are sequentially arranged;

the impact assembly comprises a first base, an electromagnetic track arranged on the first base, an electromagnetic sliding block slidingly connected to the electromagnetic track, a rotating seat arranged at the top of the electromagnetic sliding block, a support rotationally connected to the rotating seat, a first vertical guide rail arranged on the outer side wall of the support, a vertical sliding block slidingly connected to the first vertical guide rail, a hinged seat arranged at the outer end of the vertical sliding block, a rotating block rotationally connected to the hinged seat and a collision rod movably arranged on the rotating block; a pressure sensor is arranged between the rotating block and the collision rod;

the mounting assembly comprises a second base, a pair of second vertical guide rails which are vertically and symmetrically arranged on the second base, and a pair of horizontal rods which are movably arranged between the two second vertical guide rails;

the detection assembly comprises a third base and a detection plate erected on the third base; a distance sensor is densely distributed on the plate surface of the detection plate, which is close to one end of the second base;

longitudinal guide rails are arranged on the side walls of the contact ends of the first base and the third base and the second base, the travel direction of the longitudinal guide rails is horizontal and vertical to the travel direction of the electromagnetic rail, two longitudinal sliding blocks are symmetrically arranged on the second base, and the two longitudinal sliding blocks are respectively connected in the corresponding longitudinal guide rails in a sliding way; the outer ends of the first base and the third base are respectively provided with a longitudinal motor, the output end of the longitudinal motor is provided with a longitudinal screw rod, the rod bodies of the longitudinal screw rods are movably connected in the corresponding longitudinal guide rails in a penetrating manner, and the rod bodies of the longitudinal screw rods are further connected in the longitudinal screw grooves on the corresponding longitudinal sliding blocks in a threaded manner.

2. The elevator landing door strength test system according to claim 1, wherein a group of locking screw grooves perpendicular to the central axis are formed in the supporting column, locking screw rods matched with the locking screw grooves are in threaded connection with the locking screw grooves, and the acting ends of the locking screw rods are abutted against the rotating seat.

3. The elevator landing door strength test system according to claim 2, wherein the ends of the locking screw action ends are all rotatably connected with movable heads, and the action surfaces of the movable heads action ends are all provided with anti-slip pad bodies matched with the movable heads.

4. The elevator landing door strength test system according to claim 1, wherein a set of deceleration springs are symmetrically arranged on the side wall at the end of the electromagnetic track stroke, and the other ends of the deceleration springs are all fixed on the same deceleration plate.

5. The elevator landing door strength test system according to claim 1, wherein the first vertical guide rail is symmetrically provided with a set of first round holes along the travel direction, a first round groove matched with the positioning hole is penetrated through the vertical sliding block, and the vertical sliding block is fixed on the first vertical guide rail through a first bolt and a first nut matched with the first round hole and the first round groove.

6. The elevator landing door strength test system of claim 5, wherein the striker bars have striker heads removably mounted at the left and right ends thereof.

7. The elevator landing door strength test system according to claim 1, wherein a group of second round holes are formed in the second vertical guide rail along the travel direction of the second vertical guide rail, second round grooves matched with the second round holes are formed in the end portions of the two horizontal ends, the horizontal rods are fixed on the two second vertical guide rails through second bolts and second nuts matched with the second round holes, longitudinal clamping grooves are formed in bottom walls, close to each other, of the two horizontal rods, a group of clamping screw grooves for conducting the clamping grooves are symmetrically formed in the side walls of the rear ends of the horizontal rods, clamping bolts are connected in the clamping screw grooves in a threaded mode, all the clamping bolts on the same horizontal rods are connected to the same limiting plate in a rotating mode, and the limiting plate is arranged in the clamping grooves.