CN215592266U - Elevator braking distance tester - Google Patents

Abstract

The utility model discloses an elevator braking distance tester, relates to the technical field of elevator detection, and solves the problems of low precision, large error and manual operation trouble when the braking distance is measured by a manual marking method in the prior art; the tester comprises a tester shell, a timer, an acceleration sensor and a processor, and further comprises a trigger mechanism, a counterweight base, a fixed seat, an anti-skid pad, a sucker and a vacuum pump, wherein a testing chamber is arranged at the upper part of the tester shell, the timer, the acceleration sensor, the processor and the vacuum pump are all arranged in the testing chamber, the counterweight base is arranged at the lower part of the tester shell, the fixed seat is arranged at the bottom of the counterweight base, the anti-skid pad and the sucker are arranged at the bottom of the fixed seat, and the sucker is communicated with the vacuum pump through a vacuumizing tube; the utility model has stable fixation in the lift car, does not generate position deviation and slipping, and has convenient use and operation and convenient carrying.

Description

Elevator braking distance tester

Technical Field

The utility model relates to the technical field of elevator detection, in particular to the technical field of elevator stopping distance detection tools.

Background

The shortage of the braking force or the traction force of the elevator can cause the elevator to slide or shear, and the safety of passengers is seriously influenced, so the braking force and the traction capacity of the elevator need to be checked, and the braking distance is a reflection of the braking force and the traction capacity of the elevator, so the braking distance is an important measurement parameter in the inspection and the safety evaluation of the elevator.

The most common method for measuring braking and stopping distance at present is a manual marking method, namely, a clear mark is made on a traction steel wire rope, a power switch of an elevator is disconnected at the moment when a steel wire rope mark point reaches the uppermost part of a traction sheave when the elevator runs, and the moving distance of the mark point is measured.

Chinese patent No. 201920287549.1 discloses a device for rapidly detecting braking distance of a man-cargo dual-purpose elevator, which is characterized in that an instrument with an acceleration sensor is placed in a car to measure the moving distance in the period from a deceleration point to the stop of the car, so that rapid detection can be realized, and the operation is very simple; however, the device is fixed in the car by arranging the adhesive plate at the bottom of the device, when the bottom surface in the car is wet and slippery, the adhesive performance of the adhesive plate is affected, and the device is likely to shift and slide due to a certain speed of the braking operation of the elevator, so that the accuracy of the measurement result is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the technical problem, the utility model provides an elevator stopping distance tester.

The utility model specifically adopts the following technical scheme for realizing the purpose:

an elevator stopping distance tester comprises a tester shell, a timer, an acceleration sensor, a processor, a trigger mechanism, a counterweight base, a fixed seat, an anti-skid pad, a sucker and a vacuum pump, wherein the tester shell is provided with a first sensor and a second sensor;

the upper part of the tester shell is provided with a test chamber, and the timer, the acceleration sensor, the processor and the vacuum pump are all arranged in the test chamber;

the tester comprises a tester shell, a counter weight base, a fixing seat, a non-slip mat and a sucker, wherein the counter weight base is arranged on the lower portion of the tester shell, the fixing seat is arranged at the bottom of the counter weight base, the bottom of the fixing seat is provided with the non-slip mat and the sucker, and the sucker is communicated with a vacuum pump through a vacuum pumping pipe.

Preferably, trigger mechanism includes balancing weight, spring, flexible guide bar, connecting rod, contact pilotage and trigger switch, the balancing weight bottom is passed through the spring and is connected at the indoor bottom surface of test with flexible guide bar, trigger switch fixes the indoor bottom surface of test, the connecting rod is established in the balancing weight side, the one end bottom of connecting rod be connected with trigger switch complex contact pilotage.

Preferably, at least two telescopic guide rods are provided.

Preferably, the anti-slip mat is provided with a plurality of anti-slip strips.

Preferably, a ventilation groove is formed in the side face of the tester shell, and a dustproof net is installed at the ventilation groove.

Preferably, the ventilation grooves are formed in the left and right opposite side surfaces of the tester case.

Preferably, a handle is arranged at the top of the tester shell.

The utility model has the following beneficial effects:

1. according to the utility model, by arranging the sucker, when the tester is used, the vacuum pump button is turned on, and the sucker is vacuumized, so that the sucker can be firmly adsorbed on the inner bottom surface of the lift car, meanwhile, the friction force between the fixed seat and the inner bottom surface of the lift car can be increased by arranging the non-slip mat, the tester can be effectively fixed in the lift car by arranging the sucker and the non-slip mat, the tester is more stably fixed, the phenomena of displacement and slipping are avoided, the stability of the test process is ensured, and the test error is reduced.

2. The spring and the telescopic guide rod are arranged in the trigger mechanism to realize elastic pressing and recovery of the balancing weight, wherein the telescopic guide rod can play a supporting role and also can play a guiding and limiting role, so that the balancing weight can accurately drive the movable needle to contact the trigger switch when descending, and the deviation of the descending position of the balancing weight is avoided, and the balancing weight cannot be triggered.

3. The anti-skid device can increase the contact area between the anti-skid pad and the inner bottom surface of the lift car through the arrangement of the anti-skid strips, thereby increasing the friction force between the anti-skid pad and the inner bottom surface of the lift car and improving the anti-skid effect.

4. According to the utility model, the ventilation groove is formed in the side surface of the tester shell, and the dustproof net is arranged at the ventilation groove, so that the test element in the tester shell can realize ventilation and heat dissipation, and the phenomenon that the working performance of the electronic element is influenced by internal heat accumulation is avoided.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is an external structural view of the present invention;

FIG. 3 is a bottom view of the present invention;

reference numerals: 1-tester shell, 2-test chamber, 3-dust screen, 4-timer, 5-acceleration sensor, 6-processor, 7-trigger mechanism, 701-counterweight block, 702-spring, 703-telescopic guide rod, 704-connecting rod, 705-contact pin, 706-trigger switch, 8-vacuum pump, 9-vacuum tube, 10-counterweight base, 11-fixing base, 12-anti-slip pad, 13-suction cup, 14-anti-slip groove, 15-handle, 16-display screen, 17-main switch button and 18-vacuum pump button.

Detailed Description

In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 3, the present embodiment provides an elevator stopping distance tester, which includes a tester casing 1, a timer 4, an acceleration sensor 5, a processor 6, a trigger mechanism 7, a counterweight base 10, a fixing base 11, an anti-skid pad 12, a suction cup 13, and a vacuum pump 8; the front surface of the tester shell 1 is provided with a display screen 16 and a main switch button 17;

the upper part of the tester shell 1 is provided with a test chamber 2, and the timer 4, the acceleration sensor 5, the processor 6 and the vacuum pump 8 are all arranged in the test chamber 2;

the counterweight base 10 is arranged at the lower part of the tester shell 1, and as the tester has small integral volume and light weight, the weight of the whole tester can be improved through the arrangement of the counterweight base 10, and the slipping phenomenon caused by too light weight is avoided; the fixing seat 11 is arranged at the bottom of the counterweight base 10, the bottom of the fixing seat 11 is provided with an anti-skid pad 12 and a sucker 13, and the sucker 13 is communicated with the vacuum pump 8 through a vacuum-pumping tube 9.

When the elevator braking distance tester is used, the elevator braking distance tester provided by the embodiment is placed on the bottom surface inside the elevator car, the main switch button 17 is turned on, the triggering mechanism 7 is not triggered in the initial state, the acceleration sensor 5 and the timer 4 are in the power-off state, when the elevator is braked and stopped, a large constant acceleration is given to the elevator car, the acceleration direction is opposite to the moving direction, the triggering mechanism 7 is triggered, the acceleration sensor 5 and the timer 4 are electrified, the timer 4 measures the braking time, the acceleration sensor 5 measures the acceleration of the elevator car, after the braking is completed, the acceleration sensor 5 and the timer 4 transmit the detected acceleration and time to the processor 6, and finally the braking distance of the elevator car is displayed on the display screen 16, so that the braking distance of the elevator is obtained.

Before the test, when putting the inside bottom surface of car of elevator system stopping distance tester, open 8 buttons of vacuum pump, carry out evacuation processing to sucking disc 13, thereby make sucking disc 13 can firmly adsorb the bottom surface in the car, the setting of slipmat 12 can increase the frictional force of bottom surface in fixing base 11 and the car simultaneously, can realize the effective fixed of tester in the car through the setting of sucking disc 13 and slipmat 12, make the fixed of tester more stable, the phenomenon that can not take place to shift and skid, thereby guarantee the stability of testing process, reduce test error.

Example 2

In this embodiment, it is further preferable that the triggering mechanism 7 includes a weight block 701, a spring 702, a telescopic guide rod 703, a connecting rod 704, a contact pin 705 and a trigger switch 706, the bottom of the weight block 701 is connected to the inner bottom surface of the test chamber 2 through the spring 702 and the telescopic guide rod 703, the trigger switch 706 is fixed to the inner bottom surface of the test chamber 2, the connecting rod 704 is disposed on the side surface of the weight block 701, and the contact pin 705 engaged with the trigger switch 706 is connected to the bottom of one end of the connecting rod 704.

When the elevator braking device is used, in an initial state, the trigger mechanism 7 is not triggered, the acceleration sensor 5 and the timer 4 are in a power-off state, when the elevator is stopped, a large constant acceleration is given to the elevator car, the acceleration direction is opposite to the movement direction, at the moment, the counterweight block 701 descends under the action of inertia, the counterweight block 701 drives the connecting rod 704 to descend and further drives the contact pin 705 to move downwards, the contact pin 705 immediately contacts with the trigger switch 706, the acceleration sensor 5 and the timer 4 are electrified, the timer 4 measures the braking time, the acceleration sensor 5 measures the acceleration of the elevator car, after the braking is completed, the counterweight block 701 returns to the original state, the contact pin 705 leaves the trigger switch 706, the acceleration sensor 5 and the timer 4 are powered off, then the acceleration sensor 5 and the timer 4 transmit the detected acceleration and time to the processor 6, and finally the braking distance of the elevator car is displayed on the display screen 16, the stopping distance of the elevator is thus obtained.

In this embodiment, the elasticity of the counterweight block 701 is pushed down and restored by the arrangement of the spring 702 and the telescopic guide rod 703, wherein the telescopic guide rod 703 can support and limit the counterweight block 701, so that the counterweight block 701 can accurately drive the moving needle 705 to contact the trigger switch 706 when descending, and the counterweight block 701 is prevented from being deflected at the descending position and cannot be triggered.

Example 3

In this embodiment, it is further preferable that at least two telescopic guide rods 703 are provided; support and direction limiting displacement can be played through setting up flexible guide bar 703, make balancing weight 701 can accurately bring movable contact 705 to contact trigger switch 706 when descending, avoid balancing weight 701 decline position to take place the skew, can't trigger to the setting of two flexible guide bars 703 can play more even stable support and guide effect to balancing weight 701.

Example 4

In this embodiment, it is further preferable that on the basis of embodiment 1, the non-slip mat 12 is provided with a plurality of non-slip strips; the contact area of the non-slip mat 12 and the inner bottom surface of the car can be increased through the arrangement of the non-slip strips, so that the friction force between the non-slip mat 12 and the inner bottom surface of the car is increased, and the non-slip effect is improved.

Example 5

In this embodiment, it is further preferable that, on the basis of embodiment 1, a ventilation groove is formed in a side surface of the tester case 1, a dust screen 3 is installed at the ventilation groove, and the ventilation groove is formed in two opposite left and right side surfaces of the tester case 1; through setting up the ventilation groove and can making the test element in tester casing 1 realize ventilation cooling, avoid inside heat gathering to influence electronic component's working property, simultaneously, two ventilation grooves of relative setting can accelerate inside air flow, make the air form the convection current, improve ventilation cooling effect.

Example 6

In this embodiment, it is further preferable that, on the basis of embodiment 1, a handle 15 is disposed at the top of the tester housing 1; the portable tester can be conveniently carried by users by arranging the lifting handle 15, and the portability of the tester is improved.

Claims (7)

1. An elevator stopping distance tester comprises a tester shell (1), a timer (4), an acceleration sensor (5) and a processor (6), and is characterized by further comprising a trigger mechanism (7), a counterweight base (10), a fixed seat (11), an anti-skid pad (12), a sucker (13) and a vacuum pump (8);

the tester is characterized in that a test chamber (2) is arranged at the upper part of the tester shell (1), and the timer (4), the acceleration sensor (5), the processor (6) and the vacuum pump (8) are all arranged in the test chamber (2);

the tester is characterized in that the counterweight base (10) is arranged at the lower part of the tester shell (1), the fixing seat (11) is arranged at the bottom of the counterweight base (10), the bottom of the fixing seat (11) is provided with an anti-skid pad (12) and a sucker (13), and the sucker (13) is communicated with the vacuum pump (8) through a vacuumizing pipe (9).

2. The elevator stopping distance tester according to claim 1, wherein the trigger mechanism (7) comprises a counterweight block (701), a spring (702), a telescopic guide rod (703), a connecting rod (704), a contact pin (705) and a trigger switch (706), the bottom of the counterweight block (701) is connected to the inner bottom surface of the test chamber (2) through the spring (702) and the telescopic guide rod (703), the trigger switch (706) is fixed to the inner bottom surface of the test chamber (2), the connecting rod (704) is arranged on the side surface of the counterweight block (701), and the contact pin (705) matched with the trigger switch (706) is connected to the bottom of one end of the connecting rod (704).

3. The elevator stopping distance tester as claimed in claim 2, wherein at least two telescopic guide rods (703) are provided.

4. The elevator stopping distance tester according to claim 1, wherein the non-slip mat (12) is provided with a plurality of non-slip strips.

5. The elevator stopping distance tester according to claim 1, wherein a ventilation groove is formed in the side surface of the tester casing (1), and a dust screen (3) is installed at the ventilation groove.

6. The elevator stopping distance tester as claimed in claim 5, wherein the ventilation slots are provided on opposite left and right sides of the tester case (1).

7. An elevator stopping distance tester as claimed in claim 1, characterized in that the top of the tester housing (1) is provided with a handle (15).

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