CN204691810U - Hydraulic interlock air door - Google Patents
Hydraulic interlock air door Download PDFInfo
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- CN204691810U CN204691810U CN201520233701.XU CN201520233701U CN204691810U CN 204691810 U CN204691810 U CN 204691810U CN 201520233701 U CN201520233701 U CN 201520233701U CN 204691810 U CN204691810 U CN 204691810U
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Abstract
The utility model belongs to technical field of coal mine equipment, relates to a kind of alley way air door, is specifically related to a kind of hydraulic interlock air door, comprises and also comprise front door assembly and rear door assembly; Front door assembly working chamber draws the rear valve of an oil pipe to back door, and after touching when back door is opened, valve ends this pipeline, and rear door assembly working chamber draws valve before an oil pipe to Qianmen, and before touching when Qianmen is opened, valve ends this pipeline thus reaches the object of interlocking.The beneficial effects of the utility model: structure is simple, and cheap, easy to use, not fragile, maintenance cost is low.
Description
Technical field
The utility model belongs to technical field of coal mine equipment, relates to a kind of alley way air door, is specifically related to a kind of hydraulic interlock air door.
Background technology
In coal mine down-hole tunnel, often need to design wind path, air does not stop the path flows according to expection, fresh air is pumped in tunnel, device in Gas in tunnel is taken away, make the device in Gas composition of air keep low-level, avoid producing gas explosion, also meet the needs that underground labour breathes simultaneously.
The connection roadway connecting them is often designed between two parallel main tunnels, there is connection roadway just can take a shorter way in pedestrian, transport etc., more convenient, but many times do not wish that connection roadway ventilates, namely both required connection roadway can pedestrian, transport, it can not be allowed again to ventilate.
Most method for designing is in connection roadway, arrange twice air door, and every one air door can make wind path end, open wherein one air door time another road air door will be made to keep closed condition.Even if like this, sometimes also can run into the situation that two people open twice air door simultaneously, make path short circuit, air is not according to the route walking of expection, and gas can not fully be discharged, and there is larger danger.So also need to arrange a kind of equipment, when making a sect be in open mode another sect by locked, can not open, the latter when the former closes is only had to unlock, in other words, two sects or contract fully, only open a sect, another sect is in closed condition, and two sects can not be opened simultaneously.
Also someone has found out such design scheme, such as uses steel cable, can rope when a sect is opened, and the rope of tension can make another sect be in closed condition, but the easy wear and rupture of rope, and frictional force is also comparatively large, and switch is inconvenient.Also someone have devised a cam box, there are two cams the inside, extract two wire rope, tense wire rope when one sect is opened, pull cam to rotate, by pin locked for another cam, another steel cable can not be elongated, another steel cable is another road air door, so the second air door is not opened yet.This structure is more complicated, and price is more expensive, and also easily damage, maintenance cost is high.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to reality need, provides a kind of simple structure non-damageable hydraulic interlock air door again.
The utility model is achieved through the following technical solutions:
A kind of hydraulic interlock air door, be included in the front wallboard and rear wall plate that arrange in underworkings, front wallboard is provided with front door opening, and rear wall plate is provided with rear door opening, it is characterized by and also comprises front door assembly and rear door assembly;
Front door assembly comprises Qianmen, front hydraulic cylinder, front touch panel and front valve;
Qianmen is arranged in front door opening by hinge; Qianmen can make the path of wind flow end when closing, and pedestrian and transport vehicle can not pass through; When Qianmen is opened wind energy in the past door opening flow through, pedestrian and transport vehicle also by;
Front hydraulic cylinder comprises cylinder bar, secondary piston, front-bank rotor housing, front rod end bearing pin and front cylinder end pin axle; Anterior cylinder pole and secondary piston are fixedly connected, and the assembly of anterior cylinder pole and secondary piston and front-bank rotor housing form single-action hydraulic cylinder, and front working chamber is rodless cavity; Front-bank rotor housing there is front cylinder end pin axle, be connected by hinge with the wall in tunnel; Anterior cylinder pole end has front rod end bearing pin, is connected by hinge with Qianmen; When closedown or when opening Qianmen, the distance of front rod end bearing pin and front cylinder end pin axle is along with change is large or diminish, and single-action hydraulic cylinder is passively along with flexible;
Front valve comprises front valve shell, front valve core, front valve inner spring and forward pass lever, porose in front valve shell, and be a housing shape part, the outer cylinder of front core coordinates with hole and forms moving sets, and forward pass lever and front valve core are fixedly connected and reach outside from front valve shell one end; At the other end of front valve shell, namely do not have one end of forward pass lever, the end face of front valve core and front valve shell endoporus surround a cavity jointly, are front connected chambers; Be provided with front valve inner spring in front connected chamber, front valve inner spring one end compresses front valve core, and the other end compresses front valve shell hole inner face; Front valve shell sidewall having two tubing interfaces, is front logical cylinder hydraulic fluid port and front logical case hydraulic fluid port respectively; Front valve core has two kinds of duties, and a kind of duty is that front valve core is shifted onto one end by front valve inner spring, and front logical cylinder hydraulic fluid port is connected with front connected chamber respectively with front logical case hydraulic fluid port when forward pass lever is not by external force; Another kind of duty is when forward pass lever is subject to ambient pressure, front valve core is pushed and compresses front valve inner spring, front valve core moves a segment distance along the hole in front valve shell, and leads to cylinder hydraulic fluid port and front logical case hydraulic fluid port before blocking, and front logical cylinder hydraulic fluid port and front logical case hydraulic fluid port are all cut off; Front valve is fixedly mounted on Qianmen, and forward pass lever upward; When Qianmen wraps page rotation, front valve is along circular arc path movement;
Before front touch panel comprises, height touches face, front low tactile face, connects domatic and mounting flange, and be fixedly connected on front wallboard by mounting flange, it is higher that front height touches position, face, and position, front low tactile face is lower, and front connection is domatic connects front high tactile face and front low tactile face sleekly, front height touches face, before low tactile face and front connection is domatic is just in time on the circular arc mobile route of forward pass lever, in forward pass lever, end compresses and touches face along front height, front low tactile face or the domatic sliding friction of front connection mobile, forward pass lever is also subject to front valve inner spring thrust upwards simultaneously, along with each face height change, the high and low position of forward pass lever is also in change, when on contemporary transmissions bar, end compresses front high tactile face, front logical cylinder hydraulic fluid port, front connected chamber is connected with front logical case hydraulic fluid port, when on contemporary transmissions bar, end compresses front low tactile face, front logical cylinder hydraulic fluid port and front logical case hydraulic fluid port are all cut off,
Rear door assembly comprises back door, rear hydraulic cylinder, rear touch panel and rear valve, has identical structure with front door assembly;
Back door is arranged in rear door opening by hinge; Back door can make the path of wind flow end when closing, and pedestrian and transport vehicle can not pass through; When back door is opened, wind energy flows through from rear door opening, pedestrian and transport vehicle also by;
Rear hydraulic cylinder comprises rear cylinder bar, back piston, rear-bank rotor housing, rear rod end bearing pin and rear cylinder end pin axle; Rear cylinder bar and back piston are fixedly connected, and assembly and the rear-bank rotor housing of rear cylinder bar and back piston form single-action hydraulic cylinder, and rear working chamber is rodless cavity; Rear-bank rotor housing there is rear cylinder end pin axle, be connected by hinge with the wall in tunnel; Rear cylinder bar end has rear rod end bearing pin, is connected by hinge with back door; When closedown or when opening back door, the distance of rear rod end bearing pin and rear cylinder end pin axle is along with change is large or diminish, and single-action hydraulic cylinder is passively along with flexible;
Rear valve comprises rear valve body, back valve core, rear valve inner spring and rear drive link, porose in rear valve body, and be a housing shape part, the outer cylinder of back valve core coordinates with hole and forms moving sets, and rear drive link and back valve core are fixedly connected and reach outside from rear valve body one end; At the other end of rear valve body, namely do not have one end of rear drive link, the end face of back valve core and rear valve body endoporus surround a cavity jointly, are rear connected chambers; Be provided with rear valve inner spring in rear connected chamber, rear valve inner spring one end compresses back valve core, and the other end compresses rear valve body hole inner face; Rear valve body sidewall having two tubing interfaces, is rear logical cylinder hydraulic fluid port and rear logical case hydraulic fluid port respectively; Back valve core has two kinds of duties, and a kind of duty is that back valve core is shifted onto one end by rear valve inner spring, and rear logical cylinder hydraulic fluid port is connected with rear connected chamber respectively with rear logical case hydraulic fluid port when rear drive link is not by external force; Another kind of duty is when rear drive link is subject to ambient pressure, back valve core is pushed and compresses rear valve inner spring, back valve core moves a segment distance along the hole in rear valve body, and blocks rear logical cylinder hydraulic fluid port and rear logical case hydraulic fluid port, and rear logical cylinder hydraulic fluid port and rear logical case hydraulic fluid port are all cut off; Rear valve is fixedly mounted on back door, and rear drive link upward; When back door wraps page rotation, rear valve is along circular arc path movement;
Rear touch panel comprises rear height and touches face, rear low tactile face, the domatic and rear mounting flange of rear connection, be fixedly connected on rear wall plate by rear mounting flange, it is higher that rear height touches position, face, and position, rear low tactile face is lower, and rear connection is domatic connects rear high tactile face and rear low tactile face sleekly, rear height touches face, rear low tactile face and rear connection is domatic is just in time on the circular arc mobile route of rear drive link, on rear drive link, end compresses and touches face along rear height, rear low tactile face or the domatic sliding friction of rear connection mobile, rear drive link is also subject to rear valve inner spring thrust upwards simultaneously, along with each face height change, the high and low position of rear drive link is also in change, when after end on rear drive link compresses, height touches face, rear logical cylinder hydraulic fluid port, rear connected chamber is connected with rear logical case hydraulic fluid port, when end on rear drive link compresses rear low tactile face, rear logical cylinder hydraulic fluid port and rear logical case hydraulic fluid port are all cut off,
The utility model also comprises front fuel tank and rear fuel tank;
Front cylinder hydraulic fluid port is communicated with by oil pipe with rear logical cylinder hydraulic fluid port; Rear logical case hydraulic fluid port is connected by oil pipe with rear fuel tank, and below the hydraulic oil liquid level of rear fuel tank will be inserted in one end of oil pipe;
Rear cylinder hydraulic fluid port is communicated with by oil pipe with front logical cylinder hydraulic fluid port; Front logical case hydraulic fluid port is connected by oil pipe with front fuel tank, and below the hydraulic oil liquid level of front fuel tank will be inserted in one end of oil pipe;
Guarantee to be full of hydraulic oil in front working chamber, rear working chamber, front connected chamber, rear connected chamber and each pipeline.
In order to allow Qianmen keep closed condition in its natural state, cylinder inner spring before being also provided with in front working chamber, front cylinder inner spring one end compresses secondary piston, and the other end compresses the inner face of front-bank rotor housing; Under the elastic reaction of front cylinder inner spring, anterior cylinder pole is in the state of stretching out all the time, when there being external force to promote inwards, and anterior cylinder pole indentation front-bank rotor housing, front cylinder inner spring compression shortens, and the volume of front working chamber diminishes, and the hydraulic oil of the inside is overflowed by front cylinder hydraulic fluid port;
Also be provided with rear cylinder inner spring in rear working chamber, rear cylinder inner spring one end compresses back piston, and the other end compresses the inner face of rear-bank rotor housing; The same cylinder inner spring of working method.
In above-described forward pass lever, end compresses and touches face, front low tactile face or the domatic sliding friction of front connection along front height, frictional force is larger, comparatively require great effort when pushing, fret wear is very fast, in order to laborsaving, minimizing fret wear, multi-directional ball before the end of forward pass lever can be arranged, Variable roll friction is sliding friction.Above-described multi-directional ball, be again universal conveyor ball, Universal caster, steel ball wheel, buphthalmos bearing etc., comprise housing, ball and little rolling element, its ball rolls flexibly, can above in any direction roll, being widely used in transmission system, feed system, system of processing, processing equipment and packing mechanism auxiliary equipment, is the general purpose accessory that engineering field often uses.
When not having pedestrian or transport vehicle by connection roadway, Qianmen and back door are all in closed condition, forward pass lever and rear drive link are all in the state of stretching out, and front working chamber, front cylinder hydraulic fluid port, rear logical cylinder hydraulic fluid port, rear connected chamber, rear logical case hydraulic fluid port, rear fuel tank are connected; Rear working chamber, rear cylinder hydraulic fluid port, front logical cylinder hydraulic fluid port, front connected chamber, front logical case hydraulic fluid port, front fuel tank are connected;
When there being people to promote Qianmen, the volume of front working chamber diminishes, the hydraulic oil of the inside through front cylinder hydraulic fluid port, after logical cylinder hydraulic fluid port, after connected chamber and after logical case hydraulic fluid port enter rear fuel tank, Qianmen can successfully be pushed open;
While Qianmen is opened, front multi-directional ball is rolled on front low tactile face, and forward pass lever becomes the state of pinch in, and front logical cylinder hydraulic fluid port and front logical case hydraulic fluid port are all cut off;
If at this moment there is people firmly to practice backdoorism, attempt promotes back piston, attempt makes the volume of rear working chamber diminish, but front logical cylinder hydraulic fluid port is cut off, hydraulic oil in rear working chamber has been sealed, and volume can not diminish, so back piston can not be pushed, back door can not be pushed, and namely at this moment back door is blocked;
Only have after Qianmen closedown is appropriate, forward pass lever reverts to the state of stretching out again, and front working chamber, front cylinder hydraulic fluid port, rear logical cylinder hydraulic fluid port, rear connected chamber, rear logical case hydraulic fluid port, rear fuel tank revert to the state that is connected again, and back door just can be opened.
When back door is opened, Qianmen is also blocked, and has identical operating principle with above-mentioned.
The beneficial effects of the utility model: structure is simple, and cheap, easy to use, not fragile, maintenance cost is low.
Accompanying drawing explanation
Fig. 1 is the three-dimensional structure schematic diagram of the utility model embodiment, and Qianmen 11 is opened, the situation that back door 21 is closed;
Fig. 2 is the utility model embodiment Qianmen 11 top view;
Fig. 3 is the three-dimensional structure schematic diagram of front hydraulic cylinder 13, cylinder body 133 cross-section;
Fig. 4 is front valve 16 forward sectional view, and drive link 163 is by the situation compressed;
Fig. 5 is front valve 16 forward sectional view, the un-compressed situation of drive link 163;
Fig. 6 is the three-dimensional structure schematic diagram of front touch panel 14;
Fig. 7 is fluid pressure line connection layout;
Shown in figure: 1. front door assembly; 11. Qianmens; Door opening before 12.; Hydraulic cylinder before 13.; 131. anterior cylinder pole; 132. secondary piston; 133. front-bank rotor housing; Cylinder inner spring before 134.; Cylinder hydraulic fluid port before 135.; Rod end bearing pin before 136.; Cylinder end pin axle before 137.; Working chamber before 138.; Touch panel before 14.; High tactile face before 141.; Low tactile face before 142.; Connect domatic before 143.; Mounting flange before 144.; 15. front wallboards; Valve before 16.; 161. front valve shell; 162. front valve core; 163. forward pass levers; Multi-directional ball before 164.; Logical cylinder hydraulic fluid port before 165.; Logical case hydraulic fluid port before 166.; Connected chamber before 167.; Valve inner spring before 168.; Fuel tank before 17.; 2. rear door assembly; 21. back doors; Door opening after 22.; Hydraulic cylinder after 23.; Cylinder bar after 231.; 232. back piston; 233. rear-bank rotor housing; Cylinder hydraulic fluid port after 235.; Working chamber after 238.; Touch panel after 24.; 25. rear wall plates; Valve after 26.; 261. rear valve body; 262. back valve core; Drive link after 263.; Logical cylinder hydraulic fluid port after 265.; Logical case hydraulic fluid port after 266.; Connected chamber after 267.; 27. rear fuel tanks; 3. connection roadway; A. the flow direction of wind.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Embodiment: see Fig. 1 to Fig. 7.
A kind of hydraulic interlock air door, be included in the front wallboard 15 and rear wall plate 25 that arrange in underworkings 3, front wallboard 15 is provided with front door opening 12, and rear wall plate 25 is provided with rear door opening 22, it is characterized by and also comprises front door assembly 1 and rear door assembly 2;
Front door assembly 1 comprises Qianmen 11, front hydraulic cylinder 13, front touch panel 14 and front valve 16;
Qianmen 11 is arranged in front door opening 12 by hinge; The path of wind flow can be made when Qianmen 11 is closed to end, and pedestrian and transport vehicle can not pass through; When Qianmen 11 is opened wind energy in the past door opening 12 flow through, pedestrian and transport vehicle also by;
Front hydraulic cylinder 13 comprises cylinder bar 131, secondary piston 132, front-bank rotor housing 133, front rod end bearing pin 136 and front cylinder end pin axle 137; Anterior cylinder pole 131 and secondary piston 132 are fixedly connected, and assembly and the front-bank rotor housing 133 of anterior cylinder pole 131 and secondary piston 132 form single-action hydraulic cylinder, and front working chamber 138 is rodless cavities; Front-bank rotor housing 133 there is front cylinder end pin axle 137, be connected by hinge with the wall in tunnel 3; Anterior cylinder pole 131 end has front rod end bearing pin 136, is connected by hinge with Qianmen 11; When closedown or when opening Qianmen 11, the distance of front rod end bearing pin 136 and front cylinder end pin axle 137 is along with change is large or diminish, and single-action hydraulic cylinder is passively along with flexible;
Front valve 16 comprises front valve shell 161, front valve core 162, front valve inner spring 168 and forward pass lever 163, porose in front valve shell 161, it is a housing shape part, the outer cylinder of front core 162 coordinates with hole and forms moving sets, and forward pass lever 163 and front valve core 162 are fixedly connected and reach outside from front valve shell 161 one end; At the other end of front valve shell 161, namely do not have one end of forward pass lever 163, end face and front valve shell 161 endoporus of front valve core 162 surround a cavity jointly, are front connected chambers 167; Be provided with front valve inner spring 168 in front connected chamber 167, front valve inner spring 168 one end compresses front valve core 162, and the other end compresses front valve shell 161 hole inner face; Front valve shell 161 sidewall having two tubing interfaces, is front logical cylinder hydraulic fluid port 165 and front logical case hydraulic fluid port 166 respectively; Front valve core 162 has two kinds of duties, and a kind of duty is that front valve core 162 is shifted onto one end by front valve inner spring 168, and front logical cylinder hydraulic fluid port 165 is connected with front connected chamber 167 respectively with front logical case hydraulic fluid port 166, as shown in Figure 5 when forward pass lever 163 is not by external force; Another kind of duty is when forward pass lever 163 is subject to ambient pressure, front valve core 162 is pushed and compresses front valve inner spring 168, front valve core 162 moves a segment distance along the hole in front valve shell 161, and lead to cylinder hydraulic fluid port 165 and front logical case hydraulic fluid port 166 before blocking, front logical cylinder hydraulic fluid port 165 and front logical case hydraulic fluid port 166 are all cut off, as shown in Figure 4; Front valve 16 is fixedly mounted on Qianmen 11, and forward pass lever 163 upward; When Qianmen 11 wraps page rotation, front valve 16 is along circular arc path movement;
Before front touch panel 14 comprises, height touches face 141, front low tactile face 142, connects domatic 143 and mounting flange 144, be fixedly connected on front wallboard 15 by mounting flange 144, it is higher that front height touches position, face 141, front position, low tactile face 142 is lower, high tactile face 141 and front low tactile face 142 before front connection domatic 143 connects sleekly, front height touches face 141, front low tactile face 142 and front connection domatic 143 are just in time on the circular arc mobile route of forward pass lever 163, in forward pass lever 163, end compresses and touches face 141 along front height, front low tactile face 142 or domatic 143 sliding frictions of front connection mobile, forward pass lever 163 is also subject to front valve inner spring 168 thrust upwards simultaneously, along with each face height change, the high and low position of forward pass lever 163 is also in change, when on contemporary transmissions bar 163, end compresses front high tactile face 141, front logical cylinder hydraulic fluid port 165, front connected chamber 167 is connected with front logical case hydraulic fluid port 166, when on contemporary transmissions bar 163, end compresses front low tactile face 142, front logical cylinder hydraulic fluid port 165 and front logical case hydraulic fluid port 166 are all cut off,
Rear door assembly 2 comprises back door 21, rear hydraulic cylinder 23, rear touch panel 24 and rear valve 26, has identical structure with front door assembly 1;
Back door 21 is arranged in rear door opening 22 by hinge; The path of wind flow can be made when back door 21 is closed to end, and pedestrian and transport vehicle can not pass through; When back door 21 is opened, wind energy flows through from rear door opening 22, pedestrian and transport vehicle also by;
Rear hydraulic cylinder 23 comprises rear cylinder bar 231, back piston 232, rear-bank rotor housing 233, rear rod end bearing pin 236 and rear cylinder end pin axle 237; Rear cylinder bar 231 and back piston 232 are fixedly connected, and assembly and the rear-bank rotor housing 233 of rear cylinder bar 231 and back piston 232 form single-action hydraulic cylinder, and rear working chamber 238 is rodless cavities; Rear-bank rotor housing 233 there is rear cylinder end pin axle 237, be connected by hinge with the wall in tunnel 3; Rear cylinder bar 231 end has rear rod end bearing pin 236, is connected by hinge with back door 21; When closedown or when opening back door 21, the distance of rear rod end bearing pin 236 and rear cylinder end pin axle 237 is along with change is large or diminish, and single-action hydraulic cylinder is passively along with flexible;
Rear valve 26 comprises rear valve body 261, back valve core 262, rear valve inner spring 268 and rear drive link 263, porose in rear valve body 261, it is a housing shape part, the outer cylinder of back valve core 262 coordinates with hole and forms moving sets, and rear drive link 263 is fixedly connected with back valve core 262 and reaches outside from rear valve body 261 one end; At the other end of rear valve body 261, namely do not have one end of rear drive link 263, end face and rear valve body 261 endoporus of back valve core 262 surround a cavity jointly, are rear connected chambers 267; Be provided with rear valve inner spring 268 in rear connected chamber 267, rear valve inner spring 268 one end compresses back valve core 262, and the other end compresses rear valve body 261 hole inner face; Rear valve body 261 sidewall having two tubing interfaces, is rear logical cylinder hydraulic fluid port 265 and rear logical case hydraulic fluid port 266 respectively; Back valve core 262 has two kinds of duties, and a kind of duty is that back valve core 262 is shifted onto one end by rear valve inner spring 268, and rear logical cylinder hydraulic fluid port 265 is connected with rear connected chamber 267 respectively with rear logical case hydraulic fluid port 266, as shown in Figure 5 when rear drive link 263 is not by external force; Another kind of duty is when rear drive link 263 is subject to ambient pressure, back valve core 262 is pushed and compresses rear valve inner spring 268, back valve core 262 moves a segment distance along the hole in rear valve body 261, and block rear logical cylinder hydraulic fluid port 265 and rear logical case hydraulic fluid port 266, rear logical cylinder hydraulic fluid port 265 and rear logical case hydraulic fluid port 266 are all cut off, as shown in Figure 4; Rear valve 26 is fixedly mounted on back door 21, and rear drive link 263 upward; When back door 21 wraps page rotation, rear valve 26 is along circular arc path movement;
Rear touch panel 24 comprises rear height and touches face 241, rear low tactile face 242, rear connection domatic 243 and rear mounting flange 244, be fixedly connected on rear wall plate 25 by rear mounting flange 244, it is higher that rear height touches position, face 241, position, rear low tactile face 242 is lower, high tactile face 241 and rear low tactile face 242 after rear connection domatic 243 connects sleekly, rear height touches face 241, rear low tactile face 242 and rear connection domatic 243 are just in time on the circular arc mobile route of rear drive link 263, on rear drive link 263, end compresses and touches face 241 along rear height, rear low tactile face 242 or domatic 243 sliding frictions of rear connection mobile, rear drive link 263 is also subject to rear valve inner spring 268 thrust upwards simultaneously, along with each face height change, the high and low position of rear drive link 263 is also in change, when after end on rear drive link 263 compresses, height touches face 241, rear logical cylinder hydraulic fluid port 265, rear connected chamber 267 is connected with rear logical case hydraulic fluid port 266, when end on rear drive link 263 compresses rear low tactile face 242, rear logical cylinder hydraulic fluid port 265 and rear logical case hydraulic fluid port 266 are all cut off,
As shown in Figure 7, the present embodiment also comprises front fuel tank 17 and rear fuel tank 27;
Front cylinder hydraulic fluid port 135 is communicated with by oil pipe with rear logical cylinder hydraulic fluid port 265; Rear logical case hydraulic fluid port 266 is connected by oil pipe with rear fuel tank 27, and below the hydraulic oil liquid level of rear fuel tank 27 will be inserted in one end of oil pipe;
Rear cylinder hydraulic fluid port 235 is communicated with by oil pipe with front logical cylinder hydraulic fluid port 165; Front logical case hydraulic fluid port 166 is connected by oil pipe with front fuel tank 17, and below the hydraulic oil liquid level of front fuel tank 17 will be inserted in one end of oil pipe;
Guarantee to be full of hydraulic oil in front working chamber 138, rear working chamber 238, front connected chamber 167, rear connected chamber 267 and each pipeline.
In order to allow Qianmen 11 keep closed condition in its natural state, cylinder inner spring 134 before being also provided with in front working chamber 138, front cylinder inner spring 134 one end compresses secondary piston 132, and the other end compresses the inner face of front-bank rotor housing 133; Under the elastic reaction of front cylinder inner spring 134, anterior cylinder pole 131 is in the state of stretching out all the time, when there being external force to promote inwards, anterior cylinder pole 131 indentation front-bank rotor housing 133, front cylinder inner spring 134 compression shortens, and the volume of front working chamber 138 diminishes, and the hydraulic oil of the inside is overflowed by front cylinder hydraulic fluid port 135;
Also be provided with rear cylinder inner spring 234 in rear working chamber 238, rear cylinder inner spring 234 one end compresses back piston 232, and the other end compresses the inner face of rear-bank rotor housing 233; The same cylinder inner spring 134 of working method.
In above-described forward pass lever 163, end compresses and touches face 141, front low tactile face 142 or domatic 143 sliding frictions of front connection along front height, frictional force is larger, comparatively require great effort when pushing, fret wear is very fast, in order to laborsaving, minimizing fret wear, multi-directional ball 164 before the end of forward pass lever 163 can be arranged, Variable roll friction is sliding friction.Above-described multi-directional ball, be again universal conveyor ball, Universal caster, steel ball wheel, buphthalmos bearing etc., comprise housing, ball and little rolling element, its ball rolls flexibly, can above in any direction roll, being widely used in transmission system, feed system, system of processing, processing equipment and packing mechanism auxiliary equipment, is the general purpose accessory that engineering field often uses.
When not having pedestrian or transport vehicle by connection roadway 3, Qianmen 11 and back door 12 are all in closed condition, forward pass lever 163 and rear drive link 263 are all in the state of stretching out, and front working chamber 138, front cylinder hydraulic fluid port 135, rear logical cylinder hydraulic fluid port 265, rear connected chamber 267, rear logical case hydraulic fluid port 266, rear fuel tank 27 are connected; Rear working chamber 238, rear cylinder hydraulic fluid port 235, front logical cylinder hydraulic fluid port 165, front connected chamber 167, front logical case hydraulic fluid port 166, front fuel tank 17 are connected;
When there being people to promote Qianmen 11, the volume of front working chamber 138 diminishes, the hydraulic oil of the inside through front cylinder hydraulic fluid port 135, after logical cylinder hydraulic fluid port 265, after connected chamber 267 and after logical case hydraulic fluid port 266 enter rear fuel tank 27, Qianmen 11 can successfully be pushed open;
While Qianmen 11 is opened, front multi-directional ball 164 is rolled on front low tactile face 142, and forward pass lever 163 becomes the state of pinch in, and front logical cylinder hydraulic fluid port 165 and front logical case hydraulic fluid port 166 are all cut off;
If at this moment there is people firmly to practice backdoorism 21, attempt promotes back piston 232, attempt makes the volume of rear working chamber 238 diminish, but front logical cylinder hydraulic fluid port 165 is cut off, hydraulic oil in rear working chamber 238 has been sealed, and volume can not diminish, so back piston 232 can not be pushed, back door 21 can not be pushed, and namely at this moment back door is blocked;
Only have when Qianmen 11 close appropriate after, forward pass lever 163 reverts to the state of stretching out again, front working chamber 138, front cylinder hydraulic fluid port 135, rear logical cylinder hydraulic fluid port 265, rear connected chamber 267, rear logical case hydraulic fluid port 266, rear fuel tank 27 revert to the state that is connected again, and back door 21 just can be opened.
When back door 21 is opened, Qianmen 11 is also blocked, and has identical operating principle with above-mentioned.
The beneficial effect of the present embodiment: structure is simple, and cheap, easy to use, not fragile, maintenance cost is low.
Claims (5)
1. a hydraulic interlock air door, be included in the front wallboard and rear wall plate that arrange in underworkings, front wallboard is provided with front door opening, and rear wall plate is provided with rear door opening, it is characterized by and also comprises front door assembly and rear door assembly;
Front door assembly comprises Qianmen, front hydraulic cylinder, front touch panel and front valve;
Qianmen is arranged in front door opening by hinge;
Front hydraulic cylinder comprises cylinder bar, secondary piston, front-bank rotor housing, front rod end bearing pin and front cylinder end pin axle; Anterior cylinder pole and secondary piston are fixedly connected, and the assembly of anterior cylinder pole and secondary piston and front-bank rotor housing form single-action hydraulic cylinder, and front working chamber is rodless cavity; Front-bank rotor housing there is front cylinder end pin axle, be connected by hinge with the wall in tunnel; Anterior cylinder pole end has front rod end bearing pin, is connected by hinge with Qianmen;
Front valve comprises front valve shell, front valve core, front valve inner spring and forward pass lever, porose in front valve shell, and be a housing shape part, the outer cylinder of front core coordinates with hole and forms moving sets, and forward pass lever and front valve core are fixedly connected and reach outside from front valve shell one end; At the other end of front valve shell, namely do not have one end of forward pass lever, the end face of front valve core and front valve shell endoporus surround a cavity jointly, are front connected chambers; Be provided with front valve inner spring in front connected chamber, front valve inner spring one end compresses front valve core, and the other end compresses front valve shell hole inner face; Front valve shell sidewall having two tubing interfaces, is front logical cylinder hydraulic fluid port and front logical case hydraulic fluid port respectively; Front logical cylinder hydraulic fluid port is connected with front connected chamber respectively with front logical case hydraulic fluid port, or, logical cylinder hydraulic fluid port and front logical case hydraulic fluid port before front valve core blocks; Front valve is fixedly mounted on Qianmen, and forward pass lever upward;
Before front touch panel comprises, height touches face, front low tactile face, connects domatic and mounting flange, and be fixedly connected on front wallboard by mounting flange, it is higher that front height touches position, face, and position, front low tactile face is lower, and before the domatic connection of front connection, height touches face and front low tactile face; Front height touches on face, front low tactile face and the domatic mobile route being in forward pass lever of front connection, and in forward pass lever, before end compression, high tactile face, front low tactile face or front connection are domatic;
Rear door assembly comprises back door, rear hydraulic cylinder, rear touch panel and rear valve;
Back door is arranged in rear door opening by hinge;
Rear hydraulic cylinder comprises rear cylinder bar, back piston, rear-bank rotor housing, rear rod end bearing pin and rear cylinder end pin axle; Rear cylinder bar and back piston are fixedly connected, and assembly and the rear-bank rotor housing of rear cylinder bar and back piston form single-action hydraulic cylinder, and rear working chamber is rodless cavity; Rear-bank rotor housing there is rear cylinder end pin axle, be connected by hinge with the wall in tunnel; Rear cylinder bar end has rear rod end bearing pin, is connected by hinge with back door;
Rear valve comprises rear valve body, back valve core, rear valve inner spring and rear drive link, porose in rear valve body, and be a housing shape part, the outer cylinder of back valve core coordinates with hole and forms moving sets, and rear drive link and back valve core are fixedly connected and reach outside from rear valve body one end; At the other end of rear valve body, namely do not have one end of rear drive link, the end face of back valve core and rear valve body endoporus surround a cavity jointly, are rear connected chambers; Be provided with rear valve inner spring in rear connected chamber, rear valve inner spring one end compresses back valve core, and the other end compresses rear valve body hole inner face; Rear valve body sidewall having two tubing interfaces, is rear logical cylinder hydraulic fluid port and rear logical case hydraulic fluid port respectively; Rear logical cylinder hydraulic fluid port is connected with rear connected chamber respectively with rear logical case hydraulic fluid port, or back valve core blocks rear logical cylinder hydraulic fluid port and rear logical case hydraulic fluid port; Rear valve is fixedly mounted on back door, and rear drive link upward;
Rear touch panel comprises rear height and touches face, rear low tactile face, the domatic and rear mounting flange of rear connection, and be fixedly connected on rear wall plate by rear mounting flange, it is higher that rear height touches position, face, and position, rear low tactile face is lower, high tactile face and rear low tactile face after the domatic connection of rear connection; Rear height touches that face, rear low tactile face and rear connection are domatic to be on the circular arc mobile route of rear drive link, on rear drive link end after compressing high touch face, rear low tactile face or rear connect domatic;
Also comprise front fuel tank and rear fuel tank;
Front cylinder hydraulic fluid port is communicated with by oil pipe with rear logical cylinder hydraulic fluid port; Rear logical case hydraulic fluid port is connected by oil pipe with rear fuel tank;
Rear cylinder hydraulic fluid port is communicated with by oil pipe with front logical cylinder hydraulic fluid port; Front logical case hydraulic fluid port is connected by oil pipe with front fuel tank.
2. hydraulic interlock air door according to claim 1, is characterized in that, is provided with front cylinder inner spring in described front working chamber, and front cylinder inner spring one end compresses secondary piston, and the other end compresses the inner face of front-bank rotor housing.
3. hydraulic interlock air door according to claim 1, is characterized in that, is also provided with rear cylinder inner spring in described rear working chamber, and rear cylinder inner spring one end compresses back piston, and the other end compresses the inner face of rear-bank rotor housing.
4. the hydraulic interlock air door according to claim 1 or 2 or 3, is characterized in that, the end of described forward pass lever arranges front multi-directional ball.
5. the hydraulic interlock air door according to claim 1 or 2 or 3, is characterized in that, the end of described rear drive link arranges front multi-directional ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233701.XU CN204691810U (en) | 2015-04-17 | 2015-04-17 | Hydraulic interlock air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520233701.XU CN204691810U (en) | 2015-04-17 | 2015-04-17 | Hydraulic interlock air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204691810U true CN204691810U (en) | 2015-10-07 |
Family
ID=54232113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520233701.XU Expired - Fee Related CN204691810U (en) | 2015-04-17 | 2015-04-17 | Hydraulic interlock air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204691810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989644A (en) * | 2018-01-31 | 2018-05-04 | 张雪峰 | A kind of coal mine underground air door blocking device |
-
2015
- 2015-04-17 CN CN201520233701.XU patent/CN204691810U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989644A (en) * | 2018-01-31 | 2018-05-04 | 张雪峰 | A kind of coal mine underground air door blocking device |
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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: 20151007 Termination date: 20160417 |