CN109296595B - Pressure overlow alarm device of mine explosion-proof transport vehicle - Google Patents
Pressure overlow alarm device of mine explosion-proof transport vehicle Download PDFInfo
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- CN109296595B CN109296595B CN201811488578.0A CN201811488578A CN109296595B CN 109296595 B CN109296595 B CN 109296595B CN 201811488578 A CN201811488578 A CN 201811488578A CN 109296595 B CN109296595 B CN 109296595B
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- wiring board
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- valve
- alarm device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/857—Monitoring of fluid pressure systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/87—Detection of failures
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The invention relates to the technical field of mine explosion-proof transport vehicles, in particular to a low-pressure alarm device of a mine explosion-proof transport vehicle, which comprises a pressure-sensitive valve and an audible and visual alarm, wherein the pressure-sensitive valve comprises a valve ring, a valve core is arranged in the valve ring, one end of the valve ring is provided with a joint seat, the joint seat is connected to a hydraulic system through a pressure oil port, one end of the valve core is communicated with a main pressure oil duct of the hydraulic system, the other end of the valve core is provided with a lower wiring board, the lower wiring board is correspondingly provided with an upper wiring board, the valve core is pushed by hydraulic oil of the hydraulic system to slide in the valve ring and realize the circuit connection and disconnection between the lower wiring board and the upper wiring board, the other end of the valve ring is provided with a pressure plate seat, a pressure adjusting structure is arranged in the pressure plate seat, the audible and visual alarm, the upper wiring board and the lower wiring board are respectively and electrically connected with the audible and visual alarm.
Description
Technical Field
The invention relates to the technical field of mining explosion-proof transport vehicles, in particular to a too low pressure alarm device of a mining explosion-proof transport vehicle. When the hydraulic system of the vehicle breaks down and the pressure of the system is reduced to endanger safe running, the vehicle can automatically sense and remind a driver of the safety device.
Background
The protection reminding system matched with the existing mine explosion-proof transport vehicle is only used for parts such as an engine, an electric appliance, gas and the like, and for a hydraulic driving part and a hydraulic braking part of the vehicle, when a fault occurs, a device for reminding a driver is not arranged, so that driving accidents are easy to occur, and the safety production has great hidden danger.
Disclosure of Invention
Aiming at the problems, the invention provides the alarm device for the too low pressure of the mine explosion-proof transport vehicle, when the hydraulic system of the vehicle breaks down, the pressure of the hydraulic system is reduced, but the alarm prompt can be given to a driver when the driver safely operates and stops the vehicle, so that the occurrence of driving accidents is avoided.
In order to achieve the purpose, the technical scheme applied by the invention is as follows:
the pressure overlow alarm device of the mine explosion-proof transport vehicle comprises a pressure sensing valve and an audible and visual alarm, wherein the pressure sensing valve comprises a valve ring, the valve ring is arranged in a hollow mode and provided with a central through hole in a forming mode, a valve core is arranged in the central through hole, one end of the central through hole is provided with a joint seat, the joint seat is connected with a main pressure oil duct of a hydraulic system through a pressure oil port, one end of the valve core is arranged in the joint seat and communicated with the main pressure oil duct of the hydraulic system, a lower wiring board is arranged at the end part of the other end of the valve core, an upper wiring board correspondingly connected with the lower wiring board is arranged in the central through hole, the valve core slides in the central through hole through pushing of hydraulic oil of the main pressure oil duct of the hydraulic system and is communicated with and disconnected with a circuit between the lower, Double-colored LED lamp pearl, bee calling organ, current-limiting resistor, double-colored LED lamp pearl are parallelly connected with bee calling organ to cross alarm and power excessively in pressure through binding post connection, go up the wiring board and connect respectively the electricity with the lower wiring board in audible-visual annunciator.
Furthermore, the pressure adjusting structure comprises a spring and an adjusting screw which are arranged in the pressure plate seat, one end of the spring is abutted to the lower wiring board, and the other end of the spring is abutted to the adjusting screw.
Further, the adjusting screw is correspondingly provided with a locking nut.
Furthermore, the adjusting screw is provided with a spring seat, one end of the spring abuts against the lower wiring board, and the other end of the spring is limited on the spring seat.
Further, be equipped with the cable access port on the valve ring, cable access port and central through-hole intercommunication go up the wiring board and all locate the position department that cable access port and central through-hole communicate with lower wiring board to external in audible-visual annunciator through the cable.
Furthermore, the upper wiring board is provided with a static contact, and the lower wiring board is provided with a movable contact which is connected with a circuit corresponding to the static contact.
Further, the cable access port is correspondingly provided with a cable lock head.
Further, an upper sealing ring and a lower sealing ring are arranged on the outer wall of the valve core at intervals.
Further, the double-color LED lamp beads comprise green light source lamp beads and red light source lamp beads.
The invention has the beneficial effects that:
when the hydraulic system fails and the hydraulic pressure is reduced to the safety pressure preset by the hydraulic system, the pressure in the pressure oil port is reduced, the valve core and the lower wiring board in the valve ring return to the positions in the initial state under the action of the elastic force of the spring, the upper wiring board and the lower wiring board are combined in a contact mode and are communicated with a circuit, the two-color LED lamp beads display green color before the cable of the induction valve is connected, the color is yellow after the cable is connected, the buzzer works when powered on to emit reminding sound, when the system pressure is higher than the set pressure or in the normal working range, the valve core is pushed down by hydraulic oil, namely the upper wiring board and the lower wiring board are separated, the circuit is disconnected, the audible and visual alarm stops giving an alarm, and the two-color LED lamp beads display green color to show the safety of the hydraulic system.
Drawings
FIG. 1 is a sectional view of the cartridge construction of the present invention;
FIG. 2 is a structural diagram of the audible and visual alarm of the present invention.
1. The pressure-reducing valve comprises a valve core, 2 parts of an upper sealing ring, 3 parts of a lower sealing ring, 4 parts of an upper wiring board, 5 parts of a lower wiring board, 6 parts of a spring, 7 parts of a locking nut, 8 parts of a connector seat, 9 parts of a valve ring, 10 parts of a cable access port, 11 parts of a spring seat, 12 parts of a pressure plate seat, 13 parts of an adjusting screw, 14 parts of a current-limiting resistor, 15 parts of a double-color LED lamp bead, 16 parts of a buzzer, 17 parts of a circuit board, 18 parts of a wiring terminal, 19 parts of a low-pressure alarm, 20 parts of a power supply, 80 parts of a pressure.
Detailed Description
The technical solution of the present invention is described below with reference to the accompanying drawings and examples.
As shown in fig. 1 and 2, the alarm device for too low pressure of a mine explosion-proof transport vehicle comprises a pressure-sensitive valve and an audible and visual alarm, wherein the pressure-sensitive valve comprises a valve ring 9, the valve ring 9 is arranged in a hollow manner and is provided with a central through hole 90 in a molding manner, a valve core 1 is arranged in the central through hole 90, one end of the central through hole 90 is provided with a connector base 8, the connector base 8 is connected to a main pressure oil duct of a hydraulic system through a pressure oil port 80, one end of the valve core 1 is arranged in the connector base 8 and is communicated with the main pressure oil duct of the hydraulic system, the other end of the valve core 1 is provided with a lower wiring board 5, an upper wiring board 4 correspondingly connected with the lower wiring board 5 is arranged in the central through hole 90, the valve core 1 is pushed by hydraulic oil of the main pressure oil duct of the hydraulic system to slide in the central through hole 90 and realize the, be equipped with pressure regulation structure in the clamp plate seat 12, audible-visual annunciator includes circuit board 17, is equipped with current-limiting resistor 14, double-colored LED lamp pearl 15, bee calling organ 16 on the circuit board 17, and current-limiting resistor 14, double-colored LED lamp pearl 15 are parallelly connected with bee calling organ 16 to connect in pressure and hang down alarm 19 and power 20 through binding post 18, go up wiring board 4 and lower wiring board 5 electricity respectively and connect in audible-visual annunciator. The above constitutes the basic structure of the present invention.
The invention adopts the structure arrangement, the connector base 8 is connected with the main pressure oil duct of the hydraulic system through the pressure oil port 80, when the hydraulic system has a fault and the hydraulic pressure is reduced to the preset safe pressure of the hydraulic system, the pressure in the pressure oil port 80 is reduced, the valve core 1 and the lower wiring board 5 in the valve ring 9 return to the initial state under the action of the elastic force of the spring 6, the upper wiring board 4 is combined with the lower wiring board 5 in a contact way, the circuit is communicated, the two-color LED lamp bead 15 displays green before the cable of the induction valve is communicated, the color is yellow after the cable is communicated, the buzzer 16 is powered on to work to send out a reminding sound, when the system pressure is higher than the set pressure or in a normal working range, the valve core 1 is pushed down by the hydraulic oil, namely the upper wiring board 4 is separated from the lower wiring board 5, the circuit is disconnected, the audible and, the hydraulic failure testing device is simple in structure, low in cost, safe and reliable, and is a very practical hydraulic failure.
That is to say, when hydraulic system pressure was crossed lowly, go up wiring board 4 and the combination of lower wiring board 5 contact, the circuit intercommunication, double-colored LED lamp pearl 15 sends light and reminds, and bee calling organ 16 sends sound and reminds, and when hydraulic system pressure was higher than the settlement pressure or when normal working range, go up wiring board 4 and lower wiring board 5 and break away from, the circuit disconnection, audible-visual annunciator stops the warning.
More specifically, the pressure adjusting structure includes a spring 6 and an adjusting screw 13 disposed in the pressure plate seat 12, one end of the spring 6 abuts against the lower connection plate 5, and the other end of the spring 6 abuts against the adjusting screw 13. By adopting the structure, the compression force of the spring 6 is adjusted by rotating the adjusting screw 13 (the compression of the spring 6 is controlled by the distance between the lower wiring board 5 at the two ends of the spring 6 and the adjusting screw 13), namely, the pretightening force of the spring 6 is changed, so that the pressure in the pressure oil port 80 is higher than the compression force of the spring to push the valve core 1, and the upper wiring board 4 is separated from the lower wiring board 5.
More specifically, the adjusting screw 13 is correspondingly provided with a lock nut 7. By adopting the structure, the locking and limiting of the adjusting screw 13 are realized through the locking nut 7.
More specifically, the adjusting screw 13 is provided with a spring seat 11, one end of the spring 6 abuts against the lower connection plate 5, and the other end of the spring 6 is limited on the spring seat 11. With this arrangement, the spring 6 is fixed at one end by the spring seat 11.
More specifically, be equipped with cable access port 10 on the valve ring 9, cable access port 10 communicates with central through-hole 90, and last wiring board 4 and lower wiring board 5 all locate cable access port 10 and the position department that central through-hole 90 communicates to external in audible-visual annunciator through the cable. By adopting the structure, the upper wiring board 4 and the lower wiring board 5 are respectively connected with the audible and visual alarm through the cable access port 10, and the effect of wiring is achieved conveniently.
More specifically, the cable access port 10 is correspondingly provided with a cable lock 100. Adopt such structure setting, be convenient for carry out the closing cap to cable access port 10 through cable lock head 100, play the location to the cable on the one hand, on the other hand plays and protects the contact between last wiring board 4 and the lower wiring board 5, avoids getting into dust or water and causes the contact failure or the short circuit condition between last wiring board 4 and the lower wiring board 5 to take place.
More specifically, the upper wiring board 4 is provided with a fixed contact, and the lower wiring board 5 is provided with a movable contact electrically connected to the fixed contact. With the adoption of the structure, the circuit communication between the upper wiring board 4 and the lower wiring board 5 is realized through the contact of the static contact and the movable contact.
More specifically, an upper sealing ring 2 and a lower sealing ring 3 are arranged on the outer wall of the valve core 1 at intervals. Adopt such structure setting, can effectively avoid the hydraulic oil of pressure hydraulic fluid port 80 to flow to supreme wiring board 4 and lower wiring board 5 position department through last sealing washer 2 and lower sealing washer 3, cause the damage to last wiring board 4 and lower wiring board 5.
More specifically, the two-color LED lamp beads 15 include a green light source lamp bead and a red light source lamp bead. By adopting the structure, different reminding modes are realized through the light sources with two different colors.
In practical application, the double-color LED lamp bead 15 displays green before a cable of the induction valve is connected and is yellow after the cable is connected, and when the audible and visual alarm stops giving an alarm, the double-color LED lamp bead 15 displays green.
While the embodiments of the present invention have been described, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make various modifications without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (7)
1. The utility model provides a pressure of mining explosion-proof transport vechicle crosses low alarm device which characterized in that: including pressure sensing valve and audible-visual annunciator, pressure sensing valve includes valve ring (9), valve ring (9) cavity sets up, and the shaping is equipped with central through-hole (90), be equipped with case (1) in central through-hole (90), central through-hole (90) one end is equipped with joint seat (8), joint seat (8) are connected in hydraulic system main pressure oil duct through pressure hydraulic fluid port (80), case (1) one end is located in joint seat (8) to communicate with hydraulic system main pressure oil duct, case (1) other end tip is equipped with down wiring board (5), be equipped with in central through-hole (90) and connect last wiring board (4) with down wiring board (5) correspondence, case (1) promote through hydraulic system main pressure oil duct and realize sliding in central through-hole (90) to circuit intercommunication and disconnection between wiring board (5) and last wiring board (4) realize down,
the other end of the central through hole (90) is provided with a pressure plate seat (12), a pressure adjusting structure is arranged in the pressure plate seat (12), the pressure adjusting structure comprises a spring (6) and an adjusting screw (13) which are arranged in the pressure plate seat (12), one end of the spring (6) is abutted against the lower wiring board (5), the other end of the spring (6) is abutted against the adjusting screw (13), the adjusting screw (13) is correspondingly provided with a locking nut (7),
audible-visual annunciator includes circuit board (17), be equipped with current-limiting resistor (14), double-colored LED lamp pearl (15) and buzzer (16) on circuit board (17), current-limiting resistor (14), double-colored LED lamp pearl (15) are parallelly connected with buzzer (16) to connect in pressure and hang down alarm (19) and power (20) excessively through binding post (18), go up wiring board (4) and lower wiring board (5) electricity respectively and connect in audible-visual annunciator.
2. The low pressure alarm device for the mine explosion-proof transport vehicle as claimed in claim 1, is characterized in that: be equipped with spring holder (11) on adjusting screw (13), spring (6) one end is contradicted on lower wiring board (5), spring (6) other end is spacing on spring holder (11).
3. The low pressure alarm device for the mine explosion-proof transport vehicle as claimed in claim 1, is characterized in that: be equipped with cable access port (10) on valve ring (9), cable access port (10) and central through-hole (90) intercommunication, go up wiring board (4) and all locate the position department that cable access port (10) and central through-hole (90) communicate with lower wiring board (5) to be external in audible-visual annunciator through the cable.
4. The too low pressure alarm device of the mining explosion-proof transport vehicle as claimed in claim 3, characterized in that: the upper wiring board (4) is provided with a static contact, and the lower wiring board (5) is provided with a movable contact which corresponds to the static contact and is in circuit connection with the static contact.
5. The too low pressure alarm device of the mining explosion-proof transport vehicle as claimed in claim 3, characterized in that: the cable access port (10) is correspondingly provided with a cable lock head (100).
6. The low pressure alarm device for the mine explosion-proof transport vehicle as claimed in claim 1, is characterized in that: an upper sealing ring (2) and a lower sealing ring (3) are arranged on the outer wall of the valve core (1) at intervals.
7. The low pressure alarm device for the mine explosion-proof transport vehicle as claimed in claim 1, is characterized in that: the double-color LED lamp beads (15) comprise green light source lamp beads and red light source lamp beads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811488578.0A CN109296595B (en) | 2018-12-06 | 2018-12-06 | Pressure overlow alarm device of mine explosion-proof transport vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811488578.0A CN109296595B (en) | 2018-12-06 | 2018-12-06 | Pressure overlow alarm device of mine explosion-proof transport vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109296595A CN109296595A (en) | 2019-02-01 |
| CN109296595B true CN109296595B (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811488578.0A Active CN109296595B (en) | 2018-12-06 | 2018-12-06 | Pressure overlow alarm device of mine explosion-proof transport vehicle |
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Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107412U (en) * | 1991-05-08 | 1992-06-17 | 钟仁华 | Hydraulic brake alarm for automobile |
| CN2289714Y (en) * | 1997-03-15 | 1998-09-02 | 金荣昌 | Vehicle hydraulic braking safety device |
| CN2645065Y (en) * | 2003-08-27 | 2004-09-29 | 王洪伟 | Pressure alarm |
| KR101918837B1 (en) * | 2017-02-10 | 2018-11-16 | 대모 엔지니어링 주식회사 | A hydraulic breaker, hydraulic fluid monitoring system and hydraulic fluid monitoring method |
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- 2018-12-06 CN CN201811488578.0A patent/CN109296595B/en active Active
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