CN205769254U - The door-opening braking system of railless free-wheeled vehicle - Google Patents
The door-opening braking system of railless free-wheeled vehicle Download PDFInfo
- Publication number
- CN205769254U CN205769254U CN201620520167.5U CN201620520167U CN205769254U CN 205769254 U CN205769254 U CN 205769254U CN 201620520167 U CN201620520167 U CN 201620520167U CN 205769254 U CN205769254 U CN 205769254U
- Authority
- CN
- China
- Prior art keywords
- oil
- door
- reversal valve
- braking system
- brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
This utility model relates to the door-opening braking system of a kind of railless free-wheeled vehicle, it includes hydraulic power supply (1), reversal valve (2), centre brake (3) and fuel tank (4), described reversal valve (2) is post rod type two position three way directional control valve, described centre brake (3) is made up of piston cylinder (3.1) and brake (3.2), one end of the piston rod of piston cylinder (3.1) fixes with brake (3.2), is connected with back-moving spring between the other end and the cylinder body of piston rod.The door-opening braking system of this railless free-wheeled vehicle is by installing a door-opening braking system on rubber-tired cart, in the case of vehicle gate ajar, park braking system for automobile cannot work, and vehicle cannot travel, and driver the most just can be reminded just can normally to travel after fastening car door.
Description
Technical field
This utility model relates to a kind of door-opening braking system, especially relates to a kind of door-opening braking system for mine anti-explosion railless free-wheeled vehicle, belongs to coal mine transport vehicle technical field.
Background technology
At present, need to use explosion-proof trackless rubber-tyre vehicle transport goods and materials in coal mine roadway.If vehicle driver is driving during vehicle transport not by door shutting, in driving procedure, car door can automatically turn on, owing to rubber-tired cart is in underground coal mine, it is easy to meets people or other objects, cause personnel to injure or the event of other facilities damage occurs, thus cause security incident.
Summary of the invention
In order to overcome above-mentioned deficiency, this utility model provides the door-opening braking system of a kind of railless free-wheeled vehicle, and in the case of vehicle gate ajar, park braking system for automobile cannot work, and vehicle cannot travel, thus ensure that the safety of rubber-tired cart.
The purpose of this utility model is achieved in that
A kind of door-opening braking system of railless free-wheeled vehicle, it includes that hydraulic power supply, reversal valve, centre brake and fuel tank, described reversal valve are post rod type two position three way directional control valve, and the outer end of the push rod of post rod type two position three way directional control valve coordinates with car door, when a vehicle door is closed, push rod is pushed by car door；When car door opening, push rod automatically resets, and described centre brake is made up of piston cylinder and brake, and one end of the piston rod of piston cylinder fixes with brake, is connected with back-moving spring between the other end and the cylinder body of piston rod.
The oil-in of described hydraulic power supply is connected with fuel tank, the oil-out of hydraulic power supply is connected with the oil-in of reversal valve, in centre brake, the oil inlet and outlet of piston cylinder is same hydraulic fluid port, the oil inlet and outlet of piston cylinder is connected with the oil-out of reversal valve, and the oil return opening of described reversal valve is connected with fuel tank.
When rubber-tired cart normally travels, hydraulic power supply operates, and hydraulic power supply is oil suction from fuel tank, and oil is passed through the oil inlet P of reversal valve by the oil-out A of hydraulic power supply, oil is passed through in centre brake by the oil-out A of reversal valve, and centre brake can normally work.
When, after closing of the door, the push rod of post rod type two-bit triplet reversal valve is pushed by car door, hydraulic oil is entered in centre brake by the oil-out A of reversal valve, and at this moment centre brake can be opened, and vehicle can normally travel.
When car door is not turned off, the push rod of post rod type two-bit triplet reversal valve automatically resets, cut off between the oil-out A mouth of reversal valve oil inlet P and reversal valve, hydraulic oil is not now had to enter in centre brake, spring reset is passed through in piston one end of centre brake, is discharged by internal hydraulic oil, and the hydraulic oil of discharge flows through oil return inlet T from the oil-out A of reversal valve and directly flows back to fuel tank, at this moment the automatic locking of centre brake, it is achieved Brake stop function.
This utility model has the beneficial effect that
The door-opening braking system of this railless free-wheeled vehicle is by installing a door-opening braking system on rubber-tired cart, in the case of vehicle gate ajar, park braking system for automobile cannot work, and vehicle cannot travel, and driver the most just can be reminded just can normally to travel after fastening car door.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of the door-opening braking system of this utility model railless free-wheeled vehicle.
Wherein: hydraulic power supply 1, reversal valve 2, push rod 2.1, centre brake 3, piston cylinder 3.1 brake 3.2, fuel tank 4, overflow valve 5.
Detailed description of the invention
Such as Fig. 1, this utility model relates to the door-opening braking system of a kind of railless free-wheeled vehicle, and it includes hydraulic power supply 1, reversal valve 2, centre brake 3 and fuel tank 4.
Described hydraulic power supply 1 is hydraulic pump, and reversal valve 2 is post rod type two position three way directional control valve, and the outer end of the push rod 2.1 of post rod type two position three way directional control valve coordinates with car door, and when a vehicle door is closed, push rod 2.1 is pushed by car door；When car door opening, push rod 2.1 automatically resets, and described centre brake 3 is made up of piston cylinder 3.1 and brake 3.2, and one end of the piston rod of piston cylinder 3.1 fixes with brake 3.2, is connected with back-moving spring between the other end and the cylinder body of piston rod.
The oil inlet P of described hydraulic power supply 1 is connected with fuel tank 4, the oil-out A of hydraulic power supply 1 is connected with the oil inlet P of reversal valve 2, in centre brake 3, the oil inlet and outlet of piston cylinder 3.1 is same hydraulic fluid port, the oil inlet and outlet of piston cylinder 3.1 is connected with the oil-out A of reversal valve 2, and the oil return inlet T of described reversal valve 2 is connected with fuel tank 4.
And being connected with overflow valve 5 also by pipeline between the oil-out A of hydraulic power supply 1 and the oil inlet P of reversal valve 2, overflow valve 5 plays the effect of level pressure overflow, voltage stabilizing, system unloaded and safeguard protection.
The operation principle of the door-opening braking system of this railless free-wheeled vehicle is:
When rubber-tired cart normally travels, hydraulic power supply 1 operates, hydraulic power supply 1 oil suction from fuel tank 4, and oil is passed through the oil inlet P of reversal valve 2 by the oil-out A of hydraulic power supply 1, oil is passed through in centre brake 3 by the oil-out A of reversal valve 2, and centre brake 3 can normally work.
When, after closing of the door, the push rod 2.1 of post rod type two-bit triplet reversal valve is pushed by car door, hydraulic oil is entered in centre brake 3 by the oil-out A of reversal valve 2, and at this moment centre brake 3 can be opened, and vehicle can normally travel.
When car door is not turned off, the push rod 2.1 of post rod type two-bit triplet reversal valve automatically resets, cut off between the oil-out A mouth of reversal valve 2 oil inlet P and reversal valve 2, hydraulic oil is not now had to enter in centre brake 3, spring reset is passed through in piston 3.1 one end of centre brake 3, is discharged by internal hydraulic oil, and the hydraulic oil of discharge flows through oil return inlet T from the oil-out A of reversal valve 2 and directly flows back to fuel tank 4, at this moment the automatic locking of centre brake 3, it is achieved Brake stop function.
Claims (3)
1. the door-opening braking system of a railless free-wheeled vehicle, it is characterized in that: it includes hydraulic power supply (1), reversal valve (2), centre brake (3) and fuel tank (4), described reversal valve (2) is post rod type two position three way directional control valve, the outer end of the push rod (2.1) of post rod type two position three way directional control valve coordinates with car door, when a vehicle door is closed, push rod (2.1) is pushed by car door；When car door opening, push rod (2.1) automatically resets, described centre brake (3) is made up of piston cylinder (3.1) and brake (3.2), and one end of the piston rod of piston cylinder (3.1) fixes with brake (3.2), is connected with back-moving spring between the other end and the cylinder body of piston rod；
The oil-in of described hydraulic power supply (1) is connected with fuel tank (4), the oil-out of hydraulic power supply (1) is connected with the oil-in of reversal valve (2), in centre brake (3), the oil inlet and outlet of piston cylinder (3.1) is same hydraulic fluid port, the oil inlet and outlet of piston cylinder (3.1) is connected with the oil-out of reversal valve (2), and the oil return opening of described reversal valve (2) is connected with fuel tank (4).
The door-opening braking system of a kind of railless free-wheeled vehicle the most according to claim 1, it is characterised in that: it is connected with overflow valve (5) also by pipeline between oil-out and the oil-in of reversal valve (2) of described hydraulic power supply (1).
The door-opening braking system of a kind of railless free-wheeled vehicle the most according to claim 1, it is characterised in that: described hydraulic power supply (1) is hydraulic pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520167.5U CN205769254U (en) | 2016-06-01 | 2016-06-01 | The door-opening braking system of railless free-wheeled vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620520167.5U CN205769254U (en) | 2016-06-01 | 2016-06-01 | The door-opening braking system of railless free-wheeled vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205769254U true CN205769254U (en) | 2016-12-07 |
Family
ID=58135802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620520167.5U Expired - Fee Related CN205769254U (en) | 2016-06-01 | 2016-06-01 | The door-opening braking system of railless free-wheeled vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205769254U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323445A (en) * | 2017-06-19 | 2017-11-07 | 中国煤炭科工集团太原研究院有限公司 | A kind of brake hard protection device |
| CN109017732A (en) * | 2018-08-25 | 2018-12-18 | 刘剑 | The stop device of vehicle |
| CN111993887A (en) * | 2020-08-27 | 2020-11-27 | 内蒙古莱拓汽车科技有限公司 | Safety guarantee system of trackless rubber-tyred vehicle |
-
2016
- 2016-06-01 CN CN201620520167.5U patent/CN205769254U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107323445A (en) * | 2017-06-19 | 2017-11-07 | 中国煤炭科工集团太原研究院有限公司 | A kind of brake hard protection device |
| CN107323445B (en) * | 2017-06-19 | 2023-09-12 | 中国煤炭科工集团太原研究院有限公司 | Emergency braking protection device |
| CN109017732A (en) * | 2018-08-25 | 2018-12-18 | 刘剑 | The stop device of vehicle |
| CN111993887A (en) * | 2020-08-27 | 2020-11-27 | 内蒙古莱拓汽车科技有限公司 | Safety guarantee system of trackless rubber-tyred vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205769254U (en) | The door-opening braking system of railless free-wheeled vehicle | |
| CN204355025U (en) | Railless free-wheeled vehicle power cutoff automatic parking system | |
| CN204736836U (en) | Flame proof rubber tyre vehicle gas protection device | |
| CN108177523B (en) | Pneumatic system based on locking and starting of underground trackless rubber-tyred vehicle door | |
| CN103697082B (en) | Clutch automatic exhaust system and method for exhausting thereof | |
| CN204571646U (en) | Back door opens and closes and locking hydraulic control system | |
| CN109610966A (en) | Mine anti-explosion people's vehicle gas-liquid controls the safety linkage device of passenger compartment door opening and closing | |
| CN204213435U (en) | A kind of right-angle type Emergeny Cutoff Valves | |
| CN206144865U (en) | Hydraulic pressure anti -running device is with two pressurize hydraulic system | |
| CN103055461B (en) | Low-torque linkage double-open fire hydrant | |
| CN205778143U (en) | The automatic opening-closing locking mechanism of railless free-wheeled vehicle carriage back door | |
| CN203559443U (en) | Land leveler parking hydraulic automatic brake system | |
| CN203146980U (en) | Automatic blocking valve for pipeline leakage | |
| CN207157044U (en) | Harmful influence special-purpose vehicle traveling interlocking device | |
| CN205470987U (en) | Garbage truck back door auto -lock structure | |
| CN205773052U (en) | A kind of Vehicular electric single-cylinder hydraulic top | |
| CN101922480B (en) | Hydraulic reversing valve with overloading protecting function during pressure maintaining | |
| CN204357839U (en) | Plug-in type double faced lock in oil cylinder | |
| CN203756792U (en) | Automatic exhaust system of clutch | |
| RU150952U1 (en) | ADJUSTING VALVE | |
| CN205557765U (en) | Water tank siphon destructor | |
| CN206334247U (en) | Fire fighting truck automatic water filling device | |
| CN103950439A (en) | Automatic unlocking device for travelling vehicle | |
| CN205207290U (en) | Start -up time delay alarm device is used in colliery mining vehicle in pit | |
| CN204942646U (en) | Can be used for the stop valve of non-return |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20170601 |