CN211855813U

CN211855813U - Checking device

Info

Publication number: CN211855813U
Application number: CN202020665220.7U
Authority: CN
Inventors: 虞振勇; 虞丐旦; 余辉; 李秉文; 李成强
Original assignee: Wenzhou Harbor Security Seals Co ltd
Current assignee: Zhejiang Huabang Iot Technology Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-11-03
Anticipated expiration: 2030-04-27

Abstract

The utility model provides an investigation device, including fixed connection in nut retaining member the base, have the nut locating hole and with the base between rotationally the complex cavity device body, the internal RFID chip that has the antenna that is fixed with of device, the antenna part exposes in device body bottom, it has the nut through-hole to open corresponding nut locating hole position on the base, is equipped with the convex detection groove of a plurality of that supplies antenna one end to stretch into and detect on the base corresponding antenna position, and when the nut takes place not hard up rotation, the nut drives the device body rotation, and the antenna that is fixed in the internal RFID chip of device is broken and then can't acquire the information of prewriting in the RFID chip in detecting the inslot to realize the quick investigation and in time locking after the nut is not hard up. The design has the advantages of convenient detection and high sensitivity.

Description

Checking device

Technical Field

The utility model relates to a high-speed railway field, especially an investigation device for high-speed railway nut detects.

Background

With the rapid development of high-speed rail technology, the speed of high-speed rail is continuously increased, and the number of high-speed rails passing through cities every day is increased. The condition that the nut is not hard up can take place after present high-speed railway is in high-speed operation, need overhaul and maintain after entering the station at every turn, because it is extremely short and high-speed railway self mechanical structure is complicated to overhaul and maintain the time, can't in time judge that certain nut takes place not hard up in the reality, overhaul maintainer can only carry out the relocking of every nut, in the manual operation process, because the influence of above-mentioned objective factor, still have the nut and not locked and then cause the potential safety hazard, even can't detect again after locking the nut again, this has just caused overhaul maintainer can't carry out complete overhaul and maintenance to the nut equipment of whole high-speed railway car in the overhaul maintenance process, the potential safety hazard of long-term accumulation can cause the influence that can't be retrieved and then lead to the incident in the operation process to high-speed railway car itself even. On the other hand, most of the existing detection devices can only detect one-to-one, namely, one detection device corresponds to one nut to detect, nuts appearing in the practical application process are various, and in a complex high-speed rail self mechanical structure, the applied nuts are various, the requirements on the tightness are different, the requirements on the tightness of core parts are high, the requirements on non-core parts are not as high as those on the core parts, and the requirements on the maintenance operation are different, so that the maintenance efficiency is low after the high-speed rail enters a station, and meanwhile, the maintenance personnel are easy to lose consideration of the maintenance when in maintenance, and further cause the low maintenance operation efficiency.

Disclosure of Invention

An object of the utility model is to provide a detection device convenient, that sensitivity is high.

In order to solve the technical problem, the utility model discloses a following technical scheme: an investigation device comprises a base fixedly connected to a nut locking piece, and a hollow device body which is provided with a nut positioning hole and is rotatably matched with the base, wherein an RFID chip with an antenna is fixed in the device body, the antenna part is exposed at the bottom of the device body, a nut through hole is formed in the base corresponding to the nut positioning hole, a plurality of arc-shaped detection grooves for allowing one end of the antenna to extend into and detect are arranged in the base corresponding to the antenna position, the detection grooves comprise a first detection groove, a second detection groove and a third detection groove, the circle centers of circles where the first detection groove, the second detection groove and the third detection groove are located are coincident with the circle center of the nut through hole, the circle center angle of the circle where the first detection groove is located is 5 degrees, the circle center angle of the circle where the second detection groove is located is 10 degrees, the circle center angle of the circle where the third detection groove is located is 15 degrees, and when the nut is loosened and rotated, the antenna of the RFID chip fixed in the device body is broken in the detection groove, so that the information pre-written in the RFID chip cannot be acquired, and therefore the nut is rapidly checked and locked in time after being loosened.

Furthermore, the device body one side is opened there is the detection chamber, it includes the cavity, locates the RFID chip that just has the antenna in the cavity, fixes the RFID chip in the cavity and the lid seals in the chamber lid on cavity opening edge, open the cavity bottom has and supplies the antenna to stretch out and expose in the antenna passageway outside detecting the cavity.

Furthermore, the cavity is internally provided with an RFID chip positioning groove and a cavity cover positioning groove, the RFID chip is positioned in the RFID chip positioning groove, and the cavity cover is arranged in the cavity cover positioning groove.

Furthermore, the antenna channel is arranged at the bottom of the RFID chip positioning groove

Further, the device body is formed by plastic injection molding.

Further, the base bottom is fixed at least and is equipped with two spliced poles with nut retaining member complex, the spliced pole accomplishes the location of base with the connecting hole cooperation of seting up on the nut retaining member.

Furthermore, the RFID chip is mainly provided with a microprocessing unit MCU, a radio frequency transceiver module and a modulation and demodulation module, the radio frequency transceiver module is connected with the microprocessing unit MCU through the modulation and demodulation module, the microprocessing unit MCU is also connected with a flash memory, a high-speed cache, a reset control circuit, a watchdog timing circuit, a timer, a universal asynchronous receiving/transmitting device, a serial peripheral interface circuit, a port controller, a serial bus, an interrupt controller and a power manager through a data bus, the radio frequency transceiver module is provided with an RX channel, a TX channel and a frequency synthesizer, and the RX channel is provided with a low-pass filter, a programmable gain amplifier and an analog-digital converter. The RFID chip receives signals and sending signals reflected by an external label through the radio frequency transceiving module, an RX channel is a receiving channel, and the backscattering of the RFID label is transmitted to the modulation and demodulation module through the RX channel; the TX channel is a transmission channel, and the modem module transmits a modulated signal to the RFID tag through the TX channel.

The utility model has the advantages that: the utility model discloses a cooperation through the RFID chip antenna that exposes outside the detection chamber and detects the groove, the device body drives the antenna rotation and then the antenna is broken in detecting the groove after the nut takes place to become flexible, thereby the maintainer can't read the information of writing in advance in the RFID chip through detection equipment, finally realize that the maintainer can find out the nut takes place to become flexible fast and then in time overhaul and lock again, the whole detection process is simple and do not make mistakes, compare with the existing manual work and carry out the overhaul investigation of nut, the utility model discloses a cooperation through RFID chip and detection groove realizes the combination of digital detection and physical detection, has promoted the detection accuracy, has accelerated the maintenance speed, guarantees to accomplish the overhaul maintenance of whole nut in the extremely short time that high-speed railway motor car enters the station to overhaul the maintenance, reduces the potential safety hazard under leaving over in the current overhaul maintenance mode by a wide margin, reduces the influence that the overhaul maintenance is incomplete to the security of high-speed motor, on the other hand, the convenient nut to different elasticity demands of a plurality of detection groove that the multi-angle set up selects to detect the groove and detects, and a device can carry out work to the nut of multiple different elasticity demands, conveniently carries out the unification management, makes things convenient for the maintainer that overhauls to carry out the pertinence maintenance, reduces the useless merit of overhauing the maintenance in-process, promotes to overhaul by a wide margin and maintains speed and efficiency.

Drawings

Fig. 1 is a schematic view of an explosive structure of an inspection apparatus.

Fig. 2 is a schematic view of the structure of the device body of fig. 1.

Fig. 3 is a top view of the base of fig. 1.

The part names numbered in the drawings are as follows: 1. a device body; 2. a base; 3. a nut positioning hole; 4. an RFID chip; 5. a chamber cover; 6. an antenna channel; 7. a detection tank; 8. positioning a RFID chip groove; 9. a cavity cover positioning groove.

Detailed Description

In order to make the utility model realize the technical means, innovative features and functions are easy to understand, and the utility model is further explained below.

As shown in fig. 1-3, the utility model discloses the technical scheme of investigation device, including fixed connection base 2 on the nut retaining member, have nut locating hole 3 and with base 2 between rotationally the complex cavity device body 1, device body 1 internal fixation has the RFID chip 4 that has the antenna, antenna part exposes in device body 1 bottom, it has the nut through-hole to open corresponding nut locating hole 3 position on base 2, corresponds the antenna position on base 2 and is equipped with a plurality of arc detection groove that supplies antenna one end to stretch into and detect, it includes first detection groove 10, second detection groove 11, third detection groove 12 to detect the groove, the first centre of a circle that detects groove 10, second detection groove 11, third detection groove 12 and the coincidence of nut through-hole centre of a circle, the first centre of a circle angle that detects groove 10 and is 5, the second detects the centre of a circle angle that groove 11 belongs to the circle and is 10, the central angle of the circle where the third detection groove 12 is located is 15 degrees, when the nut is loosened and rotated, the nut drives the device body 1 to rotate, the antenna of the RFID chip 4 fixed in the device body 1 is broken in the detection groove, and then the prewritten information in the RFID chip 4 cannot be acquired, so that the nut is quickly checked and locked in time after being loosened. In practical application, in order to reduce the weight of the whole device body 1 and reduce the influence of the device body 1 on the nut, the device body 1 is formed by plastic injection molding, the processing technology of the plastic injection molding is mature, and the production speed and the production efficiency are high.

In an embodiment of the present invention, a detection chamber is opened at one side of the device body 1, the detection chamber includes a chamber body, an RFID chip 4 with an antenna and disposed in the chamber body, and a chamber cover 5 for fixing the RFID chip 4 in the chamber body and covering and sealing the opening edge of the chamber body, an antenna channel 6 for the antenna to extend out and expose outside the detection chamber is opened at the bottom of the chamber body, in order to reduce the volume of the detection chamber, facilitate the assembly of other components around the nut, reduce the influence of the nut on the components around the nut after the device body 1 is mounted, an RFID chip positioning groove 8 and a chamber cover positioning groove 9 are opened in the chamber body, the RFID chip 4 is located in the RFID chip positioning groove 8, the chamber cover 5 is covered in the chamber cover positioning groove 9, the antenna channel 6 is opened at the bottom of the RFID chip positioning groove 8, the above design directly reduces the volume of the device body 1, and the structure of the device body 1 is more simplified while reducing the volume, the assembly is also comparatively convenient for assembly efficiency has also promoted the installation effectiveness of integrated device. On the other hand, 2 bottom of base is fixed at least and is equipped with two and nut retaining member complex spliced poles, the spliced pole with set up the location of base 2 is accomplished in the connecting hole cooperation on the nut retaining member, above-mentioned design makes base 2's location very simple and convenient, reduces the assembly step and the time in the application, and above-mentioned connection is stable is difficult for makeing mistakes.

In practical applications, the above-mentioned detection device can generally adopt an electronic chip scanner, such as a GZ TAG C001, C5UHF, V5000, PL-40L, X9H, LJYZN-C71, LJYZN-C72, JY-U7920, and other models of handheld scanning devices and scanning guns. The utility model discloses in, the RFID chip mainly is provided with microprocessing unit MCU, radio frequency transceiver module, modem module, radio frequency transceiver module passes through modem module and is connected with microprocessing unit MCU, microprocessing unit MCU still is connected with flash memory, cache, reset control circuit, watchdog timer circuit, timer, general asynchronous receiving/transmitting device, serial peripheral interface circuit, port controller, serial bus, interrupt controller and power manager through data bus, radio frequency transceiver module is provided with RX passageway, TX passageway, frequency synthesizer, the RX passageway is provided with low pass filter, programmable gain amplifier, analog-to-digital converter. The RFID chip receives signals and sending signals reflected by an external label through the radio frequency transceiving module, an RX channel is a receiving channel, and the backscattering of the RFID label is transmitted to the modulation and demodulation module through the RX channel; the TX channel is a transmission channel, and the modem module transmits a modulated signal to the RFID tag through the TX channel.

Although the present invention has been described with reference to the specific embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. An inspection apparatus characterized by: including base (2) fixed connection on the nut retaining member, have nut locating hole (3) and with base (2) between rotationally the complex cavity device body (1), device body (1) internal fixation has RFID chip (4) that has the antenna, antenna part exposes in device body (1) bottom, it has the nut through-hole to open corresponding nut locating hole (3) position on base (2), corresponds antenna position on base (2) and is equipped with a plurality of arc detection groove that supplies antenna one end to stretch into and detect, it includes first detection groove (10), second detection groove (11), third detection groove (12) to detect the groove, the first centre of a circle that detects groove (10), second detection groove (11), third detection groove (12) place the circle coincides with the nut through-hole centre of a circle, and the first centre of a circle angle that detects groove (10) place the circle is 5, the central angle of the circle where the second detection groove (11) is located is 10 degrees, the central angle of the circle where the third detection groove (12) is located is 15 degrees, when the nut is loosened and rotated, the nut drives the device body (1) to rotate, the antenna fixed on the RFID chip (4) in the device body (1) is broken in the detection groove, and then prewritten information in the RFID chip (4) cannot be acquired, so that quick check and timely locking after the nut is loosened are realized.

2. A screening arrangement according to claim 1, wherein: the device body (1) one side is opened there is the detection chamber, detect the chamber including the cavity, locate in the cavity and have RFID chip (4) of antenna, fixed RFID chip (4) in the cavity and the lid seals in chamber lid (5) on cavity opening edge, open the cavity bottom has and supplies the antenna to stretch out and expose in antenna passageway (6) outside detecting the chamber.

3. A screening arrangement according to claim 2, wherein: open in the cavity and to have RFID chip constant head tank (8), chamber lid constant head tank (9), RFID chip (4) are located RFID chip constant head tank (8), chamber lid (5) lid is located chamber lid constant head tank (9).

4. A screening arrangement according to claim 2 or 3, wherein: the antenna channel (6) is arranged at the bottom of the RFID chip positioning groove (8).

5. A screening arrangement according to claim 1, 2 or 3, wherein: the device body (1) is formed by plastic injection molding.

6. An investigation apparatus according to claim 4, characterised in that: the device body (1) is formed by plastic injection molding.

7. An investigation apparatus according to claim 1 or 2 or 3 or 6, characterised in that: base (2) bottom is fixed at least to be equipped with two with nut retaining member complex spliced pole, the location of base (2) is accomplished with the connecting hole cooperation of seting up on the nut retaining member to the spliced pole.

8. An investigation apparatus according to claim 4, characterised in that: base (2) bottom is fixed at least to be equipped with two with nut retaining member complex spliced pole, the location of base (2) is accomplished with the connecting hole cooperation of seting up on the nut retaining member to the spliced pole.

9. An investigation apparatus according to claim 5, characterised in that: base (2) bottom is fixed at least to be equipped with two with nut retaining member complex spliced pole, the location of base (2) is accomplished with the connecting hole cooperation of seting up on the nut retaining member to the spliced pole.

10. An investigation apparatus according to claim 1 or 2 or 3 or 6 or 8 or 9, characterised in that: the RFID chip is mainly provided with a microprocessing unit MCU, a radio frequency transceiving module and a modulation and demodulation module, the radio frequency transceiver module is connected with a microprocessing unit MCU through a modulation and demodulation module, the microprocessing unit MCU is also connected with a flash memory, a cache, a reset control circuit, a watchdog timer circuit, a timer, a universal asynchronous receiving/transmitting device, a serial peripheral interface circuit, a port controller, a serial bus, an interrupt controller and a power manager through a data bus, the RFID chip receives signals and transmitting signals reflected by an external label through the radio frequency transceiver module, the RX channel is a receiving channel, and backscattering of the RFID label is transmitted to the modulation and demodulation module through the RX channel; the TX channel is a transmission channel, and the modem module transmits a modulated signal to the RFID tag through the TX channel.