CN214471469U

CN214471469U - Quick-connection type intelligent pressure detector for locomotive brake cabinet

Info

Publication number: CN214471469U
Application number: CN202120300304.5U
Authority: CN
Inventors: 徐冬明; 戴和平; 欧阳爱莲; 刘举平
Original assignee: CRRC Luoyang Locomotive Co Ltd
Current assignee: CRRC Luoyang Locomotive Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-10-22
Anticipated expiration: 2031-02-03

Abstract

The utility model provides a quick-connect intelligent pressure detector for locomotive brake cabinet, which comprises a shell, a pressure sensor, a sensor cabin, a connecting piece, a quick connector, a three-way connector and a calibrating device, wherein the whole shell is of a rectangular structure, a microcontroller, a digital-to-analog conversion module, a display module and a built-in power supply are arranged in the shell, a display screen is arranged outside the shell, and the display screen is connected with the microcontroller through the display module; the sensor cabin is characterized in that a mounting seat is arranged at one end of the outer portion of the shell, a through hole communicated with the inner portion of the shell is formed in the mounting seat, one end, provided with a wire, of the sensor cabin is detachably arranged in the mounting seat, a connecting piece is connected to the other end of the sensor cabin, and the other end of the connecting piece is connected with a quick connector or a three-way connector. The detector supports independent work and meets the application requirement of continuous detection; the size is small, the weight is light, the replaceable sensor bin is convenient to install and detach, the data output adopts a wireless mode, and a user can easily move and observe each path of data.

Description

Quick-connection type intelligent pressure detector for locomotive brake cabinet

Technical Field

The utility model relates to a rail locomotive braking system, especially locomotive braking system's intellectual detection system technique specifically are a connect formula intelligence pressure measurement appearance soon for locomotive brake cabinet.

Background

The CCBII, DK-2 or similar brake is a second generation microcomputer controlled brake system, belonging to a microcontroller based electro-pneumatic brake control system, all logic except the initiation of the emergency braking action being microcomputer controlled, the brake system being designed for use on passenger and freight locomotives, a 26L type brake being compatible with electronic air brake equipment. On-board detection and periodic maintenance and repair of the locomotive brake system are essential to ensure safe operation of the locomotive. At present, when a CCBII braking system is detected, simple pressure observation of each pressure measuring point in the braking system is generally realized in a mode of externally connecting a mechanical or electronic pressure gauge, and continuous tracking, comprehensive comparative analysis, EBV data combination and the like of pressure data of the measuring point are not realized.

In order to solve the problems of rapid pressure acquisition of the CBBII brake and continuous tracking of pressure data of a measuring point during vehicle-mounted running, a novel pressure detection device suitable for CCBII, DK-2 or similar brakes is necessary to develop.

Disclosure of Invention

The utility model aims at providing a connect formula intelligence pressure measurement appearance soon for locomotive brake cabinet realizes the quick connection with the brake cabinet quick-connect socket through the mechanical parts of design swift formula, and this detector supports independent work, has online power source simultaneously, when the vehicle-mounted operation, can be by the simultaneous working of external power source and inside lithium electricity, satisfies the application requirement of continuous detection; the detector is small in size, light in weight, free of connection of a sensor and a host through PU pipes and the like, more convenient to install and disassemble, wireless in data output mode and easy for a user to move and observe data in each path.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a quick-connection type intelligent pressure detector for a locomotive brake cabinet comprises a shell, a pressure sensor, a sensor bin, a connecting piece, a quick connector, a three-way connector and a calibrating device, wherein the calibrating device comprises a calibrating air source and a pressure gauge, the sensor bin is integrally of a cylindrical bin body structure, an axial through hole A is formed in the middle of one end of the sensor bin, a lead for outputting a sensor signal is arranged at the other end of the sensor bin, the pressure sensor is packaged in the sensor bin, a measuring head end of the pressure sensor is located at one end, provided with the through hole A, of the sensor bin, and an output end of the pressure sensor is connected with the lead; the shell is integrally of a rectangular structure, a microcontroller, a digital-to-analog conversion module, a display module and a built-in power supply are arranged in the shell, and a display screen is arranged outside the shell and connected with the microcontroller through the display module; the sensor comprises a shell, a sensor bin, a connecting piece and a quick connector or a three-way connector, wherein one end of the outer part of the shell is provided with a mounting seat, the mounting seat is internally provided with a through hole communicated with the inner part of the shell, one end of the sensor bin, which is provided with a wire, is detachably arranged in the mounting seat, the other end of the sensor bin is connected with the connecting piece, and the other end of the connecting piece is connected with the quick connector or the three-way connector; and the lead of the sensor bin is connected with the microcontroller through the digital-to-analog conversion module.

The sensor cabin its both ends respectively with mount pad, connecting piece threaded connection, be equipped with the symmetry plane that is used for supplying the spanner to pull at the outer face of cylinder in the sensor cabin.

The whole connecting piece be cylinder type structure, its outer face of cylinder middle part also is equipped with the symmetry plane that supplies the spanner to pull, the one end of connecting piece is equipped with screw hole A that is used for connecting the sensor storehouse, and the other end is equipped with screw hole B, screw hole A and screw hole B are coaxial and the intercommunication.

One end of the quick connector is in threaded connection with the connecting piece, the other end of the quick connector is used for connecting an external pressure measuring point, and a pipeline penetrating through the two ends of the quick connector is arranged in the quick connector.

The three-way joint is composed of a first joint, a second joint and a third joint which are communicated with each other, wherein the first joint is connected with the connecting piece, the second joint is used for connecting a calibration air source, and the third joint is used for connecting a pressure gauge.

The shell is also provided with a power interface connected with an external power supply.

The shell is internally provided with a wireless transmission module which is electrically connected with the microcontroller.

The utility model has the advantages that: the detector supports independent work, and when the detector runs on a vehicle, an external power supply and an internal lithium battery can work simultaneously, so that the application requirement of continuous detection is met; the detector is small in size and light in weight, a sensor is not required to be connected with a host through a PU (polyurethane) pipe and the like, the replaceable sensor bin is convenient to install and detach, data output adopts a wireless mode, and a user can easily move and observe data in each path.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic diagram of the present invention for connecting the calibration air source.

Fig. 3 is a schematic view of a sensor cartridge.

Fig. 4 is a schematic view of a connector.

FIG. 5 is a schematic view of a quick connector.

In the figure: the method comprises the following steps of 1-a shell, 101-a mounting seat, 102-a through hole, 2-a pressure sensor, 3-a sensor bin, 301-a through hole A, 302-a conducting wire, 4-a connecting piece, 401-a threaded hole A, 402-a threaded hole B, 5-a quick connector, 6-a three-way connector, 7-a calibration air source, 8-a pressure gauge, 9-a microcontroller, 10-a digital-to-analog conversion module, 11-a display module, 12-an internal power supply, 13-a display screen and 14-a power supply interface.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be noted that the described embodiments are only some embodiments, not all embodiments, of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 5, a quick-connect intelligent pressure detector for a locomotive brake cabinet comprises a casing 1, a pressure sensor 2, a sensor chamber 3, a connecting piece 4, a quick connector 5, a three-way connector 6 and a calibrating device, wherein the calibrating device comprises a calibrating air source 7 and a pressure gauge 8, the sensor chamber 3 is integrally of a cylindrical chamber structure, an axial through hole a301 is formed in the middle of one end of the sensor chamber 3, a lead 302 for outputting a sensor signal is formed in the other end of the sensor chamber, the pressure sensor 2 is packaged in the sensor chamber 3, a measuring head end of the pressure sensor 2 is located at one end of the sensor chamber 3, which is provided with the through hole a301, and an output end of the pressure sensor 2 is connected with the lead 302; the shell 1 is integrally of a rectangular structure made of a stainless steel material, a microcontroller 9, a digital-to-analog conversion module 10, a display module 11 and a built-in power supply 12 are arranged in the shell, a display screen 13 is arranged outside the shell, and the display screen 13 is connected with the microcontroller 9 through the display module 11; the sensor comprises a shell 1, a sensor cabin 3 and a connecting piece 4, wherein one end of the outer part of the shell 1 is provided with an installation seat 101, the installation seat 101 is internally provided with a through hole 102 communicated with the inner part of the shell 1, one end of the sensor cabin 3 provided with a lead 302 is detachably arranged in the installation seat 101, the other end of the sensor cabin 3 is connected with the connecting piece 4, the other end of the connecting piece 4 is connected with a quick connector 5 or a three-way connector 6, the quick connector 5 is used for being connected with an external pressure measuring point, and the three-way connector 6 is used for being connected with a calibrating device of a pressure sensor 2; the lead 302 of the sensor chamber 3 is connected with the microcontroller 9 through the digital-to-analog conversion module 10. Specifically, a multi-core plug is arranged on the lead 302, and the lead 302 and the digital-to-analog conversion module 10 can be connected through the multi-core plug, so that the sensor chamber 3 can be replaced conveniently. The utility model discloses an in the embodiment, microcontroller 9 adopts the STM32 singlechip that is released by the meaning semiconductor company, adopts ARM Cortex-M kernel, 32 bits, chooses industrial-level chip for use, and the supporting program is encrypted, and is fast, good reliability.

The two ends of the sensor bin 3 are respectively in threaded connection with the mounting base 101 and the connecting piece 4, and a symmetrical plane for wrenching a wrench is arranged on the outer cylindrical surface of the sensor bin 3. Due to the design, when the sensor cabin 3 is damaged, the sensor cabin is convenient to replace.

The whole connecting piece 4 be cylinder type structure, its outer face of cylinder middle part also is equipped with the symmetry plane that supplies the spanner to pull, the one end of connecting piece 4 is equipped with screw hole A401 that is used for connecting sensor storehouse 3, and the other end is equipped with screw hole B402, screw hole A401 and screw hole B402 are coaxial and communicate.

One end of the quick connector 5 is in threaded connection with the connecting piece 4, the other end of the quick connector is used for connecting an external pressure measuring point, and a pipeline penetrating through the two ends of the quick connector 5 is arranged in the quick connector 5. In an embodiment of the present invention, the quick connector 5 is designed in a straight tube shape, and one end of the outer circular surface connected to the external pressure measuring point is provided with an annular boss, correspondingly, the air outlet interface of the pressure measuring point is provided with an air channel switch matched with the annular boss, when the annular boss is inserted into the air outlet interface, the air channel switch is triggered, then the air flow enters the connecting piece 4 from the inner pipeline of the quick connector 5, the pressure value is tested by the pressure sensor 2 when entering the sensor chamber 3, and the analog signal of the pressure value is converted into the digital signal through the digital-to-analog conversion module 10 and transmitted to the microcontroller 10, and then displayed on the display screen 14 through the display module 11.

The three-way joint 6 is composed of a first joint, a second joint and a third joint which are mutually communicated, the first joint is connected with the connecting piece 4, the second joint is used for connecting the calibration air source 7, and the third joint is used for connecting the pressure gauge 8. Specifically, the three-way joint is mainly used for testing the pressure sensor 2 regularly, during testing, the sensor bin 3 with the built-in pressure sensor 2 is connected with the shell 1, the connecting piece 4 is installed at the end part of the sensor bin 3, then the three-way joint 6 is connected, the first joint of the three-way joint 6 is connected with the connecting piece 4, the second joint is connected with the calibration air source 7 through a hose, the third joint is used for connecting the pressure gauge 8, the calibration air source 7 is opened for air supply, the pressure value of the pressure gauge 8 and the pressure value displayed on the shell 1 are observed, if the deviation between the pressure value and the pressure value exceeds an allowable range, the pressure sensor 2 is checked, if no fault exists, the indicating value proportionality coefficient of the pressure sensor can be modified through the microcontroller, and the displayed value meets the requirement; if the deviation of the two is within the allowable range, the three-way joint 6 can be removed, and the quick joint 5 can be installed for normal use.

The shell 1 is also provided with a power interface 14 connected with an external power supply.

The casing 1 in be equipped with wireless transmission module, wireless transmission module is connected with microcontroller 9 for transmit the pressure value that detects to upper computer.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

The part of the utility model not detailed is prior art.

Claims

1. A quick-connection type intelligent pressure detector for a locomotive brake cabinet comprises a shell (1), a pressure sensor (2), a sensor bin (3), a connecting piece (4), a quick connector (5), a three-way connector (6) and a calibrating device, wherein the calibrating device comprises a calibrating air source (7) and a pressure gauge (8), the sensor bin (3) is integrally of a cylindrical bin body structure, an axial through hole A (301) is formed in the middle of one end of the sensor bin, a lead (302) used for outputting a sensor signal is arranged at the other end of the sensor bin, the pressure sensor (2) is packaged in the sensor bin (3), a measuring head end of the pressure sensor (2) is located at one end, connected with the through hole A (301), of the sensor bin (3), and an output end of the pressure sensor (2) is connected with the lead (302); the method is characterized in that: the shell (1) is integrally of a rectangular structure, a microcontroller (9), a digital-to-analog conversion module (10), a display module (11) and a built-in power supply (12) are arranged in the shell, a display screen (13) is arranged outside the shell, and the display screen (13) is connected with the microcontroller (9) through the display module (11); the pressure sensor is characterized in that a mounting seat (101) is arranged at one end of the outer portion of the shell (1), a through hole (102) communicated with the inner portion of the shell (1) is formed in the mounting seat (101), one end, provided with a lead (302), of the sensor bin (3) is detachably arranged in the mounting seat (101), the other end of the sensor bin (3) is connected with a connecting piece (4), the other end of the connecting piece (4) is connected with a quick connector (5) or a three-way connector (6), the quick connector (5) is used for being connected with an external pressure measuring point, and the three-way connector (6) is used for being connected with a calibrating device of the pressure sensor (2); the lead (302) of the sensor bin (3) is connected with the microcontroller (9) through a digital-to-analog conversion module (10).

2. The quick connect intelligent pressure tester for locomotive brake cabinets of claim 1, wherein: the sensor cabin (3) its both ends respectively with mount pad (101), connecting piece (4) threaded connection, be equipped with the symmetry plane that is used for supplying the spanner to pull at the outer cylinder face in sensor cabin (3).

3. The quick connect intelligent pressure tester for locomotive brake cabinets of claim 1, wherein: the whole connecting piece (4) be the cylinder type structure, its outer face of cylinder middle part also is equipped with the symmetry plane that supplies the spanner to pull, the one end of connecting piece (4) is equipped with screw hole A (401) that are used for connecting sensor storehouse (3), and the other end is equipped with screw hole B (402), screw hole A (401) and screw hole B (402) are coaxial and communicate.

4. The quick connect intelligent pressure tester for locomotive brake cabinets of claim 1, wherein: one end of the quick connector (5) is in threaded connection with the connecting piece (4), the other end of the quick connector is used for connecting an external pressure measuring point, and a pipeline penetrating through the two ends of the quick connector (5) is arranged in the quick connector (5).

5. The quick connect intelligent pressure tester for locomotive brake cabinets of claim 1, wherein: the three-way joint (6) comprises a first joint, a second joint and a third joint which are communicated with each other, wherein the first joint is connected with the connecting piece (4), the second joint is used for connecting the calibration air source (7), and the third joint is used for connecting the pressure gauge (8).

6. The quick connect intelligent pressure tester for locomotive brake cabinets of claim 1, wherein: the shell (1) is also provided with a power interface (14) connected with an external power supply.

7. The quick connect intelligent pressure tester for locomotive brake cabinets of claim 1, wherein: the pressure sensor is characterized in that a wireless transmission module is arranged in the shell (1), and the wireless transmission module is connected with the microcontroller (9) and used for transmitting the detected pressure value to an upper computer.