CN210742002U - Portable testing arrangement of elevator shaft wall atress deformation - Google Patents

Abstract

The utility model relates to a portable testing arrangement of elevator shaft wall atress deformation. The measuring host comprises a protective machine shell cover, a protective machine shell, a built-in lithium battery, a displacement sensor, a stress sensor, a slide way, a slide block, a main circuit board, an external reference board and a stress head; the slide way is fixed on the casing, the rear side of the slide way is provided with a displacement sensor and a stress sensor on the protective casing, the slide way is provided with a slide block, a round hole is arranged on the casing right in front of the slide block, a reference plate is connected to the front end of the slide block through a hollow shaft penetrating through the round hole, a thimble of the displacement sensor is elastically contacted with the rear end of the slide block, the reference plate is provided with a through hole corresponding to the hollow shaft, a stress head penetrates through the through hole to be assembled on the hollow shaft, and the stress sensor is connected with the stress head. The utility model discloses the model variable numerical value under the ability simultaneous measurement other material atress circumstances has solved only measuring device and can't directly measure the difficult problem of corresponding deformation data value.

Description

Portable testing arrangement of elevator shaft wall atress deformation

Technical Field

The utility model relates to a portable testing arrangement of elevator shaft wall atress deformation.

Background

Statistically, 80% of elevator accidents are mainly concentrated in the entrance of a hall, which includes a situation that when an elevator is out of order and the distance between a car sill and a hoistway wall exceeds a standard, passengers easily fall into the hoistway from the gap. The casualty accident is caused, and the inspection mechanism pays enough attention to the hidden trouble in the detection process.

GB7588-2003 Elevator manufacturing and installation safety Specification No. 1 amends the single requirement, once there is this hidden danger, the inspection organization should issue the notice of inspection suggestion, make it make this clearance less than 0.15 meter through the corresponding technological means. This involves the addition of a shield to the wall of the well. But different units do not understand the material and strength of the square sum accurately. The standard also specifies that 5 square centimeters withstand 300 newtons of force without significant deformation. However, the existing inspection instruments and means are mainly visual inspection, and no special instrument is provided. The traditional tension meter cannot effectively measure the deformation of the tension meter. The difficulty lies in portability, liquid crystal display, mm-grade deformation, difficult measurement of numerical values, accuracy of the measurement of the numerical values and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an elevator well wall atress warp portable testing arrangement, it can realize quick automatic acquisition to exert the purpose of the deformation volume of well wall protective material, sedan-chair door, sedan-chair wall, layer door when well wall, sedan-chair door, sedan-chair wall, 1000N power, and the structure is light and handy, portable, convenient and practical. The utility model discloses can the simultaneous measurement type variable numerical value under the other material atress circumstances, solve only measuring device and can't directly measure the difficult problem of corresponding deformation data value.

Realize the utility model discloses the purpose the utility model discloses a technical scheme do:

the utility model relates to a portable testing device for the stress deformation of an elevator shaft wall, which comprises a measuring host and a measuring operation terminal, wherein the measuring host is wirelessly connected with the measuring operation terminal;

the measuring host comprises a protective machine shell cover and a protective machine shell, a lithium battery, a displacement sensor, a stress sensor, a slide way, a slide block, a main circuit board, an external reference board and a stress head are arranged in the protective machine shell cover;

the protective machine shell cover is assembled on the protective machine shell, a charging hole, a Bluetooth antenna hole and a key hole are formed in the protective machine shell cover, the Bluetooth antenna and the keys are installed on the protective machine shell cover, the circuit board is assembled on the inner side of the protective machine shell cover, and the lithium battery is fixed on the circuit board through gum pasting;

the slide passes through the bolt fastening on the casing, it is equipped with displacement sensor and force sensor to be located the slide rear side and fix on the protection casing, be equipped with the slider on the slide, just to having seted up the round hole in slider the place ahead on the casing, the hollow shaft fixed connection that the benchmark board passes through this round hole is at the slider front end, realize that the benchmark board can form the slip along the direction of slide, and make displacement sensor's thimble and slider rear end elasticity touch, realize measuring the purpose of installing the benchmark board displacement volume before the slider, the through-hole has been seted up to corresponding the hollow shaft on the benchmark board, the force head passes this through-hole assembly and is located the benchmark board front end on the hollow shaft, force sensor and force head are connected.

The measurement operation terminal may be equipped with a wirelessly connected portable printer.

The utility model has the advantages that: the utility model has the advantages that the instrument is portable, the data repeatability is high, the reliability is stable, the system adopts a plurality of sensor modules, and the electric signals of the modules are converted into the application range of a single chip microcomputer (circuit board); the system adopts a lithium battery for power supply, and is designed to detect the voltage of the battery; the detector is operated by adopting an android panel, and a human-computer interaction interface is designed; the panel of the detector is designed to be controlled by keys, so that different operation functions are realized respectively; and the functions of fault detection, power failure protection and the like of the detector are completed. The system comprises a power management module, an MCU module, a sensor module, an auxiliary module, a human-computer interaction module and the like.

The utility model discloses can the deformation volume of automatic acquisition well wall protective material when 300N save measured data. Namely, only a force larger than 300N needs to be applied by a measuring person in the measuring process, and the deformation amount of the protective material at 300N can be automatically acquired by measuring equipment. Because the traditional tension meter can not effectively measure the deformation. In order to achieve the simple and convenient measuring mode, the utility model discloses to measure the sensor integration of deformation in the middle of the measuring instrument. Therefore, the type variable of the protective material acting on the 300N force of the well wall can be accurately measured at one time, and the purposes of convenient operation in the measuring process and integration of a pressure sensor and a displacement sensor are achieved.

The utility model discloses an innovation point does:

(1) the product in the existing market is only the measured data on a certain point of record, the utility model discloses the product then draws out through the curve relation with power and displacement, can more audio-visually know the continuity of deformation or the node of mutability, and the type variable of protective material when the accurate measurement of ability disposable is used in well wall 300N power.

(2) The utility model discloses structural design is exquisite, highly integrated, the portability is good, and easily operation, measurement are accurate. And the portable wireless connection printer and the portable Bluetooth printer can be directly connected, the measurement result and the curve can be printed on site, and the objectivity and the real-time performance of data are ensured.

Drawings

Fig. 1 is the utility model relates to a portable testing arrangement embodiment of elevator shaft wall atress warp the structure assembly explosion sketch map of measurement host computer.

Fig. 2 is the utility model relates to a functional block diagram of circuit board in the measurement host computer in elevator shaft wall atress warp portable testing arrangement embodiment.

Detailed Description

The following provides a more detailed description of the present invention with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without any creative work belong to the protection scope of the present invention!

As shown in the accompanying drawings 1 and 2 the utility model relates to an elevator well wall atress warp's portable testing arrangement's embodiment, it includes measurement host computer and measurement operation terminal, measurement host computer and measurement operation terminal wireless connection, measurement operation terminal adopt general intelligent Mobile terminal can, for example be equipped with the panel computer etc. of android system.

The measuring host comprises a protective machine shell cover 2, a protective machine shell 7, a built-in lithium battery 4, a displacement sensor 5, a stress sensor 6, a slide rail 11, a slide block 12, a circuit board 3, an external reference board 8 and a stress head 9.

The protective machine shell cover 2 is assembled on the protective machine shell 7, a charging hole, a Bluetooth antenna hole and a key hole are formed in the protective machine shell cover 2, the Bluetooth antenna 10 and the key 1 are installed at the corresponding hole of the protective machine shell cover 2, the circuit board 3 is assembled on the inner side of the protective machine shell cover 2, and the lithium battery 4 g is fixed on the circuit board 3 through back glue adhesion.

The slideway 11 is fixed on the machine shell 7 through bolts, and the displacement sensor 5 and the stress sensor 6 are fixedly assembled on the protective machine shell 7 and positioned at the rear side of the slideway 11. A slider 12 is fitted on the slide 11. A round hole is formed in the case 7 right in front of the sliding block 12, the reference plate 8 is fixedly connected to the front end of the sliding block 12 through a hollow shaft penetrating through the round hole, the reference plate 8 can slide along the direction of the slide rail 11, an ejector pin of the displacement sensor 5 is in elastic contact with the rear end of the sliding block 12, and the purpose of measuring the displacement of the reference plate 8 installed in front of the sliding block 12 is achieved.

As shown in fig. 2, the circuit board is integrated with a CPU main control module of the model STM32F103, a 12-bit a/D digital-to-analog conversion chip connected to the displacement sensor, a 24-bit a/D digital-to-analog conversion circuit connected to the pressure sensor, a memory cell module, a crystal oscillator reset module, and a power circuit module;

the power supply circuit comprises a charging circuit lithium battery and a voltage conversion circuit; the power supply respectively supplies power to the CPU main control module, the 12-bit A/D digital-to-analog conversion chip, the displacement sensor, the 24-bit A/D digital-to-analog conversion circuit, the pressure sensor, the storage unit module, the crystal oscillator reset module and the like. The measurement operation terminal is connected with the CPU main control module in the circuit board in a wireless mode such as Bluetooth to realize interactive operation.

The measurement operation terminal may be equipped with a wirelessly connected portable printer.

The utility model discloses it is exactly the instrument that a power and deformation combined together, and the power that individual wall was applyed to the hand is fixed size 300N, surveys its deformation that corresponds. The portable liquid crystal display device has the advantages of portability, liquid crystal display, mm-level deformation and accurate measurement value.

The utility model discloses a difficult point of design is how the deformation volume of well wall protective material when measuring instrument is applyed at well wall 300N power to the quick measurement. Aiming at the characteristic that a measurer cannot constantly exert 300N force, the measuring instrument is required to automatically acquire the deformation amount of the protective material of the well wall at 300N and store the measured data. Namely, only a force larger than 300N needs to be applied by a measuring person in the measuring process, and the deformation amount of the protective material at 300N can be automatically acquired by measuring equipment. Because the traditional tension meter can not effectively measure the deformation, in order to achieve the simple measurement mode, a sensor for measuring the deformation is required to be integrated into a measuring instrument. Therefore, the type variable of the protective material acting on the 300N force of the well wall can be accurately measured at one time, and the purposes of convenient operation in the measuring process and integration of a pressure sensor and a displacement sensor are achieved.

The utility model discloses research and development's technical key is:

the ingenious design and the overall structure design of the displacement sensor and the pressure sensor are matched with the CPU main control unit to realize the drawing of the curve relation of force and displacement, so that the continuity or the mutation node of deformation can be more intuitively understood, and the type variable of the protective material when the protective material acts on the well wall 300N force can be accurately measured at one time.

The utility model discloses an innovation point does:

(1) the product in the existing market is only the measured data on a certain point of record, the utility model discloses the product then draws out through the curve relation with power and displacement, can more audio-visually know the continuity of deformation or the node of mutability, and the type variable of protective material when the accurate measurement of ability disposable is used in well wall 300N power.

(2) The utility model discloses structural design is exquisite, highly integrated, the portability is good, and easily operation, measurement are accurate. And the portable wireless connection printer and the portable Bluetooth printer can be directly connected, the measurement result and the curve can be printed on site, and the objectivity and the real-time performance of data are ensured.

The utility model discloses the technical indicator who realizes reaches:

thrust measurement range: 0-1000N, deformation amount measurement range: 0-20mm, thrust resolution: 0.1N, deformation amount precision: 0.01 mm.

Claims (1)

1. A portable testing arrangement of elevator shaft wall atress deformation which characterized in that: the test device comprises a measurement host and a measurement operation terminal, wherein the measurement host is in wireless connection with the measurement operation terminal;

the measuring host comprises a protective machine shell cover and a protective machine shell, a lithium battery, a displacement sensor, a stress sensor, a slide way, a slide block, a main circuit board, an external reference board and a stress head are arranged in the protective machine shell cover;

the protective machine shell cover is assembled on the protective machine shell, a charging hole, a Bluetooth antenna hole and a key hole are formed in the protective machine shell cover, the Bluetooth antenna and the keys are installed on the protective machine shell cover, the circuit board is assembled on the inner side of the protective machine shell cover, and the lithium battery is fixed on the circuit board through gum pasting;

the slide passes through the bolt fastening on the casing, it is equipped with displacement sensor and force sensor to be located the slide rear side and fix on the protection casing, be equipped with the slider on the slide, just to having seted up the round hole in slider the place ahead on the casing, the hollow shaft fixed connection that the benchmark board passes through this round hole is at the slider front end, realize that the benchmark board can form the slip along the direction of slide, and make displacement sensor's thimble and slider rear end elasticity touch, realize measuring the purpose of installing the benchmark board displacement volume before the slider, the through-hole has been seted up to corresponding the hollow shaft on the benchmark board, the force head passes this through-hole assembly and is located the benchmark board front end on the hollow shaft, force sensor and force head are connected.

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