CN105822349B - Horizontal slope track automatic safety door - Google Patents
Horizontal slope track automatic safety door Download PDFInfo
- Publication number
- CN105822349B CN105822349B CN201610305323.0A CN201610305323A CN105822349B CN 105822349 B CN105822349 B CN 105822349B CN 201610305323 A CN201610305323 A CN 201610305323A CN 105822349 B CN105822349 B CN 105822349B
- Authority
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- China
- Prior art keywords
- door
- dodge gate
- rotating shaft
- safety door
- control
- 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.)
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- 230000000694 effects Effects 0.000 claims description 8
- 230000000875 corresponding Effects 0.000 claims description 7
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- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0nMS4wJyBlbmNvZGluZz0naXNvLTg4NTktMSc/Pgo8c3ZnIHZlcnNpb249JzEuMScgYmFzZVByb2ZpbGU9J2Z1bGwnCiAgICAgICAgICAgICAgeG1sbnM9J2h0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnJwogICAgICAgICAgICAgICAgICAgICAgeG1sbnM6cmRraXQ9J2h0dHA6Ly93d3cucmRraXQub3JnL3htbCcKICAgICAgICAgICAgICAgICAgICAgIHhtbG5zOnhsaW5rPSdodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rJwogICAgICAgICAgICAgICAgICB4bWw6c3BhY2U9J3ByZXNlcnZlJwp3aWR0aD0nODVweCcgaGVpZ2h0PSc4NXB4JyB2aWV3Qm94PScwIDAgODUgODUnPgo8IS0tIEVORCBPRiBIRUFERVIgLS0+CjxyZWN0IHN0eWxlPSdvcGFjaXR5OjEuMDtmaWxsOiNGRkZGRkY7c3Ryb2tlOm5vbmUnIHdpZHRoPSc4NS4wJyBoZWlnaHQ9Jzg1LjAnIHg9JzAuMCcgeT0nMC4wJz4gPC9yZWN0Pgo8dGV4dCB4PSczNS4wJyB5PSc1My42JyBjbGFzcz0nYXRvbS0wJyBzdHlsZT0nZm9udC1zaXplOjIzcHg7Zm9udC1zdHlsZTpub3JtYWw7Zm9udC13ZWlnaHQ6bm9ybWFsO2ZpbGwtb3BhY2l0eToxO3N0cm9rZTpub25lO2ZvbnQtZmFtaWx5OnNhbnMtc2VyaWY7dGV4dC1hbmNob3I6c3RhcnQ7ZmlsbDojM0I0MTQzJyA+RjwvdGV4dD4KPHRleHQgeD0nNTEuMCcgeT0nNTMuNicgY2xhc3M9J2F0b20tMCcgc3R5bGU9J2ZvbnQtc2l6ZToyM3B4O2ZvbnQtc3R5bGU6bm9ybWFsO2ZvbnQtd2VpZ2h0Om5vcm1hbDtmaWxsLW9wYWNpdHk6MTtzdHJva2U6bm9uZTtmb250LWZhbWlseTpzYW5zLXNlcmlmO3RleHQtYW5jaG9yOnN0YXJ0O2ZpbGw6IzNCNDE0MycgPmU8L3RleHQ+Cjwvc3ZnPgo= [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 description 5
- 229940092174 Safe-Guard Drugs 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000011120 plywood Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000004221 Multiple Trauma Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/103—Dams, e.g. for ventilation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61K—AUXILIARY EQUIPMENT SPECIALLY ADAPTED FOR RAILWAYS, NOT OTHERWISE PROVIDED FOR
- B61K7/00—Railway stops fixed to permanent way; Track brakes or retarding apparatus fixed to permanent way; Sand tracks or the like
- B61K7/16—Positive railway stops
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F13/00—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions
- E01F13/04—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage
- E01F13/06—Arrangements for obstructing or restricting traffic, e.g. gates, barricades ; Preventing passage of vehicles of selected category or dimensions movable to allow or prevent passage by swinging into open position about a vertical or horizontal axis parallel to the road direction, i.e. swinging gates
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/50—Power-operated mechanisms for wings using fluid-pressure actuators
- E05F15/53—Power-operated mechanisms for wings using fluid-pressure actuators for swinging wings
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B11/00—Means for allowing passage through fences, barriers or the like, e.g. stiles
- E06B11/02—Gates; Doors
- E06B11/022—Gates; Doors characterised by the manner of movement
- E06B11/027—Gates; Doors characterised by the manner of movement where the gate rotates around a horizontal axis parallel to the plane of the gate
Abstract
The invention discloses horizontal slope track automatic safety door, it is arranged at the knick point of drive horizontal segment and lower curved section, including fixed pillar, door shield, dodge gate, rotating shaft and safety door hydraulic jack, the fixed branch column symmetry is fixedly installed on the both sides of drive rail, the door shield is arranged at the centre of two fixed pillars, the rear end of the dodge gate is articulated and connected by rotating shaft and the fixed pillar, the front end of the dodge gate is overlapped on the door shield, the output end of the safety door hydraulic jack is connected with the rotating shaft, the rotating shaft and the dodge gate is driven to be rotated on vertical plane.The invention has the advantages that：The present invention uses mechanical drive mode and reinforcement structure mode, realizes being automatically brought into operation for safety door, and effectively increase the class of safety protection and control efficiency of track.
Description
Technical field
The present invention relates to mining behaviour's vehicle device technical field, and in particular to a kind of horizontal slope track automatic safety door.
Background technology
It is the Multiple trauma of security incident at the horizontal segment of the horizontal slope track in colliery and the knick point of lower curved section, easily occurs
Front and rear car bumps against the situations such as coaster, and mining-car stopper and deceleration device can be typically set on the track of knick point front end, so that
Mine car steadily can be parked in horizontal rail, and safe guard bar is then provided with knick point, the control point transported as mine car, together
When play simple Intercepting effects, there is certain hidden danger in this security protection pattern, particularly safe guard bar is relatively fragile, if
The car arrester or deceleration device of front end break down, then are difficult that mine car especially load-carrying mine car is carried out to stop, cause safe thing
Therefore；In addition, existing safe guard bar is mainly cumbersome by manual control, workload, it is impossible to accurate control, reduces and transports effect
Rate.
The content of the invention
The present invention is directed to above-mentioned technical problem, it is proposed that a kind of mechanically operated horizontal slope track automatic safety door, has
Effect improves the class of safety protection and control efficiency of track.
The present invention solves above-mentioned technical problem using following technical scheme：Horizontal slope track automatic safety door, is arranged at
At the knick point of drive horizontal segment and lower curved section, including fixed pillar, door shield, dodge gate, rotating shaft and safety door hydraulic jack, institute
The both sides that fixed branch column symmetry is fixedly installed on drive rail are stated, the door shield is arranged at the centre of two fixed pillars, described
The rear end of dodge gate is articulated and connected by rotating shaft and the fixed pillar, and the front end of the dodge gate is overlapped on the door shield,
The output end of the safety door hydraulic jack is connected with the rotating shaft, drives the rotating shaft and the dodge gate to turn on vertical plane
It is dynamic.By increasing door shield mode, the impact resistant capability of safety door is improved, is controlled by the transmission of safety door hydraulic jack, it is real
Machine automatization control is showed.
Optimization, the dodge gate is fixedly installed on the top of the rotating shaft, and the bottom of the rotating shaft passes through the fixation
Pillar is connected with the output end of the safety door hydraulic jack, and buffer spring is arranged with the rotating shaft, the buffer spring
One end is against on the dodge gate on the rotating shaft top, and the other end of the buffer spring is against on the fixed pillar, works as safety
When door is hit, impact is quickly absorbed by buffer spring, effectively reduces the damage of the parts such as rotating shaft.
Optimization, the dodge gate reticulates frame structure by the splicing of some channel-section steels, and the front end of the dodge gate is provided with
Current wicket, the current wicket side are articulated and connected with the dodge gate front end, and the opposite side of the current wicket is overlapped on
On the door shield, the current wicket is concordant with the dodge gate, and correspondingly current wicket lap position is provided with branch to the door shield
Bracer.The purpose for setting current wicket can be facilitated through safety door in order to facilitate workmen, without detouring.
Optimization, dodge gate front end both sides are respectively arranged with pin and door latch apparatus, and the current wicket passes through pin
Post is hinged with the dodge gate, and the current wicket corresponds to the door latch apparatus and is provided with biteplate, the biteplate with it is described
Door latch apparatus is connected.Said structure be in order to improve the bond strength between safety door and current wicket, it is whole so as to improve
The impact resistance of body.
As the optimization design to above-mentioned door latch apparatus, the door latch apparatus includes door bolt head, control-rod, handle, the door bolt
Head is L-shaped bending part, and the door bolt head is vertically fixed on the control-rod, and elbow is downward, and the vertical activity of the control-rod is inserted
Be connected on the dodge gate, the control-rod top is connected with handle, it is corresponding on the dodge gate and on the biteplate described in
Door bolt head offers latch aperture.When needing to open current wicket, control-rod and door bolt head need to only be lifted by handle, released to stinging
The limitation of plywood, you can open current wicket, when current wicket needs to close, then lift control-rod and door bolt head, by biteplate
It is caught in dodge gate, then puts down control-rod and door bolt head, block biteplate, connects so that current wicket and dodge gate are integrally fixed
Connect.
Optimization, at least two groups of door bolt heads are provided with the control-rod, the biteplate is corresponding with the door bolt head.Pass through increasing
Add biting point quantity to increase the stress point of current wicket, so as to improve overall intensity.
The advantage of the invention is that：The present invention uses mechanical drive mode and reinforcement structure mode, realizes safety door
Be automatically brought into operation, and effectively increase the class of safety protection and control efficiency of track.
Brief description of the drawings
Fig. 1 is the structural representation of automatic safety door in the embodiment of the present invention；
Fig. 2 is the structural representation of door latch apparatus in automatic safety door of the embodiment of the present invention.
Embodiment
Such as Fig. 1, shown in Fig. 2, horizontal inclined shaft automatic safety door, it is arranged at the knick point of drive horizontal segment and lower curved section,
Including fixed pillar 141, door shield 142, dodge gate 143, rotating shaft 144 and safety door hydraulic jack 145, the fixed pillar 141
The symmetrical both sides for being fixedly installed on drive rail, the door shield 142 are arranged at the centre of two fixed pillars 141, the activity
The rear end of door 143 is articulated and connected by rotating shaft 144 and the fixed pillar 141, described in the front end of the dodge gate 143 is overlapped on
On door shield 142, the output end of the safety door hydraulic jack 145 is connected with the rotating shaft 144, drives the rotating shaft 144 and institute
Dodge gate 143 is stated to rotate on vertical plane.By increasing door shield mode, the impact resistant capability of safety door is improved, passes through hydraulic pressure
The transmission control of oil cylinder, realizes machine automatization control.
The dodge gate 143 is fixedly installed on the top of the rotating shaft 144, and the bottom of the rotating shaft 144 is through described solid
The output end for determining pillar 141 with the safety door hydraulic jack 145 is connected, and buffer spring is arranged with the rotating shaft 144, described
One end of buffer spring is against on the dodge gate 143 on the top of rotating shaft 144, and the other end of the buffer spring is against described solid
Determine on pillar 141, when safety door is hit, impact is quickly absorbed by buffer spring, effectively reduces the parts such as rotating shaft
Damage.
The dodge gate 143 reticulates frame structure by the splicing of some channel-section steels, and the front end of the dodge gate 143 is provided with logical
Row wicket 15, the current side of wicket 15 are articulated and connected with the front end of dodge gate 143, the opposite side of the current wicket 15
It is overlapped on the door shield 142, the current wicket 15 is concordant with the dodge gate 143, the corresponding current wicket of the door shield 142
15 lap positions are provided with support block 146.The purpose for setting current wicket can be facilitated through peace in order to facilitate workmen
Air cock, without detouring.
The front end both sides of dodge gate 143 are respectively arranged with pin 147 and door latch apparatus, and the current wicket 15 passes through pin
Post 147 is be hinged with the dodge gate 143, and the corresponding door latch apparatus of current wicket 15 is provided with biteplate 151, described to sting
Plywood 151 is connected with the door latch apparatus.Said structure is strong in order to improve the combination between safety door and current wicket
Degree, so as to improve overall impact resistance.
The door latch apparatus includes fastening with a bolt or latch first 148, control-rod 149, handle 1410, and the door bolt first 148 is L-shaped bending part, institute
Door bolt first 148 is stated to be vertically fixed on the control-rod 149, and elbow is downward, the 149 vertical activity of control-rod is plugged on described
On dodge gate 143, the top of control-rod 149 is connected with handle 1410, on the dodge gate 143 and on the biteplate 151
The corresponding door bolt first 148 offers latch aperture., only need to be by handle 1410 by control-rod when needing to open current wicket 15
149 and door bolt first 148 lift, release the limitation to biteplate 151, you can current wicket is opened, when current wicket 15 needs to close
When, then lift control-rod 149 and door bolt first 148, biteplate 151 is caught in dodge gate 143, then put down control-rod 149 and door bolt head
148, biteplate 151 is blocked, so that current wicket 15 is fixedly connected with the entirety of dodge gate 143.
2 groups of door bolts first 148 are provided with the control-rod 149, the biteplate 151 is corresponding with fastening first 148 with a bolt or latch.
The preferred embodiment of the invention is the foregoing is only, is not intended to limit the invention creation, it is all at this
All any modification, equivalent and improvement made within the spirit and principle of innovation and creation etc., should be included in the invention
Protection domain within.
Claims (4)
1. horizontal slope track automatic safety door, is arranged at the knick point of drive horizontal segment and lower curved section, it is characterised in that bag
Fixed pillar, door shield, dodge gate, rotating shaft and safety door hydraulic jack are included, the fixed branch column symmetry is fixedly installed on drive iron
The both sides of rail, the door shield are arranged at the centre of two fixed pillars, and the rear end of the dodge gate passes through rotating shaft and the fixation
Pillar is articulated and connected, and the front end of the dodge gate is overlapped on the door shield, the output end of the safety door hydraulic jack and institute
Rotating shaft connection is stated, drives the rotating shaft and the dodge gate to be rotated on vertical plane；
The dodge gate reticulates frame structure by the splicing of some channel-section steels, and the front end of the dodge gate is provided with current wicket, institute
Current wicket side to be stated to be articulated and connected with the dodge gate front end, the opposite side of the current wicket is overlapped on the door shield,
The current wicket is concordant with the dodge gate, and correspondingly current wicket lap position is provided with support block to the door shield；
Dodge gate front end both sides are respectively arranged with pin and door latch apparatus, and the current wicket passes through pin and the activity
Door hinge is connect, and the current wicket corresponds to the door latch apparatus and is provided with biteplate, and the biteplate is engaged with the door latch apparatus
Connection.
2. horizontal slope track automatic safety door as claimed in claim 1, it is characterised in that the dodge gate is fixedly installed on
The top of the rotating shaft, the bottom of the rotating shaft connect through the output end of the fixed pillar and the safety door hydraulic jack
Connect, buffer spring is arranged with the rotating shaft, one end of the buffer spring is against on the dodge gate on the rotating shaft top, described
The other end of buffer spring is against on the fixed pillar.
3. horizontal slope track automatic safety door as claimed in claim 1, it is characterised in that the door latch apparatus includes door bolt
Head, control-rod, handle, the door bolt head is L-shaped bending part, and the door bolt head is vertically fixed on the control-rod, and elbow is downward,
The vertical activity of control-rod is plugged on the dodge gate, and the control-rod top is connected with handle, on the dodge gate and
The door bolt head is corresponded on the biteplate and offers latch aperture.
4. horizontal slope track automatic safety door as claimed in claim 3, it is characterised in that be provided with the control-rod to
Few two groups of door bolt heads, the biteplate are corresponding with the door bolt head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305323.0A CN105822349B (en) | 2016-05-09 | 2016-05-09 | Horizontal slope track automatic safety door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610305323.0A CN105822349B (en) | 2016-05-09 | 2016-05-09 | Horizontal slope track automatic safety door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105822349A CN105822349A (en) | 2016-08-03 |
| CN105822349B true CN105822349B (en) | 2018-01-09 |
Family
ID=56528501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610305323.0A Active CN105822349B (en) | 2016-05-09 | 2016-05-09 | Horizontal slope track automatic safety door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105822349B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106437832A (en) * | 2016-11-25 | 2017-02-22 | 淮南矿业(集团)有限责任公司 | Underground remote control warning bar system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902690A (en) * | 1974-02-28 | 1975-09-02 | Rayno H Wanha | Derailing device with safety lock |
| CN1603187A (en) * | 2004-11-17 | 2005-04-06 | 周荣刚 | Inclined shaft safe door device preventing equipment sliding |
| CN2913613Y (en) * | 2006-05-17 | 2007-06-20 | 山东省七五生建煤矿 | Hydraulic rotary type safety gate |
| CN202325641U (en) * | 2011-11-10 | 2012-07-11 | 河南理工大学 | Hydraulic-drive folding full-open type safety door |
| CN202967814U (en) * | 2012-12-07 | 2013-06-05 | 山东力控矿山设备有限公司 | Opposite opening type safety door for mine |
| CN203381646U (en) * | 2013-07-22 | 2014-01-08 | 会东县鑫联矿业有限责任公司 | Mine inclined shaft tramcar stop installed on rails |
| CN205558970U (en) * | 2016-05-09 | 2016-09-07 | 淮南矿业(集团)有限责任公司 | Automatic emergency exit of horizontal inclined shaft track |
-
2016
- 2016-05-09 CN CN201610305323.0A patent/CN105822349B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3902690A (en) * | 1974-02-28 | 1975-09-02 | Rayno H Wanha | Derailing device with safety lock |
| CN1603187A (en) * | 2004-11-17 | 2005-04-06 | 周荣刚 | Inclined shaft safe door device preventing equipment sliding |
| CN2913613Y (en) * | 2006-05-17 | 2007-06-20 | 山东省七五生建煤矿 | Hydraulic rotary type safety gate |
| CN202325641U (en) * | 2011-11-10 | 2012-07-11 | 河南理工大学 | Hydraulic-drive folding full-open type safety door |
| CN202967814U (en) * | 2012-12-07 | 2013-06-05 | 山东力控矿山设备有限公司 | Opposite opening type safety door for mine |
| CN203381646U (en) * | 2013-07-22 | 2014-01-08 | 会东县鑫联矿业有限责任公司 | Mine inclined shaft tramcar stop installed on rails |
| CN205558970U (en) * | 2016-05-09 | 2016-09-07 | 淮南矿业(集团)有限责任公司 | Automatic emergency exit of horizontal inclined shaft track |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105822349A (en) | 2016-08-03 |
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