CN202380856U - Explosion-proof and fire-proof bidirectional escape door lock of fire fighting access of railway tunnel - Google Patents
Explosion-proof and fire-proof bidirectional escape door lock of fire fighting access of railway tunnel Download PDFInfo
- Publication number
- CN202380856U CN202380856U CN 201120556531 CN201120556531U CN202380856U CN 202380856 U CN202380856 U CN 202380856U CN 201120556531 CN201120556531 CN 201120556531 CN 201120556531 U CN201120556531 U CN 201120556531U CN 202380856 U CN202380856 U CN 202380856U
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- Prior art keywords
- lock
- proof
- ratchet
- fire
- door
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Abstract
The utility model discloses an explosion-proof and fire-proof bidirectional escape door lock of a fire fighting access of a railway tunnel. The explosion-proof and fire-proof bidirectional escape door lock comprises a door locking mechanism, a driving mechanism and a pull rod which is used for connecting the door locking mechanism and the driving mechanism, wherein the door locking mechanism comprises a lock body, and a bolt, a bolt spring, an ejector rod and an ejector rod spring which are arranged in the lock body; the driving mechanism comprises a rotating wheel, a connecting rod and a rocker arm; the bolt and the ejector rod are arranged side by side in parallel; the door locking mechanism also comprises a conical surface nut and a pawl; the conical surface nut is arranged at the lower end of the ejector rod spring; the middle part of the pawl is hinged on the lock body; the upper end of the pawl corresponds to the conical surface of the conical surface nut; a clamp at the lower end of the pawl corresponds to an annular step arranged at the lower end of the bolt; and the pawl is provided with a ratchet spring which can force the pawl to move in the clockwise direction. According to the explosion-proof and fire-proof bidirectional escape door lock, the defects of the conventional escape lock are overcome; and the explosion-proof and fire-proof bidirectional escape door lock has the advantages of high anti-impact capacity and functions of bidirectional opening and automatic barrier-free restoration.
Description
Technical field
The utility model relates to a kind of protection door lock that is used for the railway tunnel passageway for fire apparatus, refers to a kind of railway tunnel passageway for fire apparatus antiknock two-way escaping door lock of preventing fires particularly.
Background technology
For the parallel double tunnel line, the both sides, passageway for fire apparatus all need be provided with protective door between the tunnel.Railway tunnel passageway for fire apparatus protective door requires to have antiknock, fire prevention and personnel escape's function.Can realize accessible escape through two sects smoothly for the ease of personnel, protective door should be able to bidirectional opening.Simultaneously, train causes the wind load alternate at a high speed through the tunnel, should be able to the withstand shocks effect of load and fluctuating load of door body and lockset.
Traditional fire prevention escape lock has two kinds of presser type and pressure lever types.The escape personnel is through pushing pressing plate or depression bar, and pressing plate or depression bar drive locking plug and withdraw from lockhole, can push protective door open and escape.But traditional fire prevention escape lock mechanical strength is low, does not possess the resistance to shock loads ability, and can only adapt to the protective door of unidirectional unlatching.In addition, when the escape personnel unclamped pressing plate, locking plug resetted, and for no threshold, accessible protective door, the locking plug that stretches out will contact with ground, increase the resistance of closing the door, and caused escape not close automatically, and the intensity of a fire possibly spread, protective door forfeiture safeguard function.
Summary of the invention
The purpose of the utility model will overcome the existing in prior technology deficiency exactly, and a kind of railway tunnel passageway for fire apparatus antiknock two-way escaping door lock of preventing fires is provided.
For realizing above-mentioned purpose; The railway tunnel passageway for fire apparatus antiknock that the utility model the designed two-way escaping door lock of preventing fires comprises lock door mechanism, driving mechanism and connects the pull bar of lock door mechanism and driving mechanism that said lock door mechanism comprises lock body and is arranged on latch, latch spring, push rod and the push rod spring in the lock body; Said driving mechanism comprises runner, connecting rod and rocking arm; Said latch and push rod are arranged in parallel side by side, and said lock door mechanism also comprises conic nut and ratchet, and said conic nut is arranged on the lower end of push rod spring; Said ratchet middle part is hinged on the lock body; The upper end of said ratchet is corresponding with the conical surface of said conic nut, and the clamp of the lower end of said ratchet is corresponding with the ring-shaped step that is arranged on the latch lower end, on ratchet, is provided with the ratchet spring that can force it to move along clockwise direction.
In the such scheme, said runner is arranged in the door leaf, and said connecting rod and rocking arm are provided with two covers, is separately positioned on the interior outside of runner, and an end of said connecting rod is connected with runner, and the other end of said connecting rod is connected with rocking arm.Like this, can push door lock open, realize the bi-directional door escape in the interior outside of door.
Preferably, the clamp of said ratchet is and the corresponding opening claw of ring-shaped step.Like this, the ring-shaped step of latch lower end is blocked by the clamp of ratchet through the opening claw.
Preferably, said lock door mechanism is a world double bolt structure.Like this, can bear and act on shock loading on the body.
Preferably, said rocking arm pivot angle is 0～50 °.
Preferably, also be connected with push strut on the said rocking arm.Said push strut and door leaf are wide, make things convenient for the escape personnel to open the door.
The beneficial effect of the utility model is: when door leaf cut out, push rod shrank, and drove ratchet and counterclockwise rotated, and ratchet withdraws from latch lower end ring-shaped step, and latch stretches out, and pins door leaf.When the escape personnel pushes depression bar, retract latch, door leaf can be open, and door leaf is open simultaneously, and because push rod ejects, latch is blocked by ratchet, and at this moment, even the escape personnel unclamps depression bar, latch still can not stretch out, and accessible the resetting of assurance door leaf closed.This lockset has overcome the defective of traditional escape lockset, but has strong shock resistance bidirectional opening and the automatic accessible function that resets.
Description of drawings
Fig. 1 is the main TV structure sketch map of the utility model.
Fig. 2 is the left TV structure sketch map among Fig. 1.
Fig. 3 is the local structure for amplifying sketch map of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail.
The two-way escaping door lock of preventing fires of railway tunnel passageway for fire apparatus antiknock shown in Fig. 1～3, comprise lock door mechanism, two covers be separately positioned on door leaf the interior outside driving mechanism and connect the pull bar 8 of lock door mechanism and driving mechanism.Lock door mechanism is a world double bolt structure.Lock door mechanism comprises lock body 1 and is arranged on latch 2, latch spring 5, push rod 3 and the push rod spring 4 in the lock body 1 that latch 2 is arranged in parallel with push rod 3 side by side.Lock door mechanism also comprises conic nut 6 and ratchet 7; Conic nut 6 is arranged on the lower end of push rod spring 4; Ratchet 7 middle parts are hinged on the lock body 1; Right side, ratchet 7 upper end is corresponding with the conical surface of conic nut 6, and the clamp 7.1 in left side, ratchet 7 lower ends is corresponding with the ring-shaped step 2.1 that is arranged on latch 2 lower ends, on ratchet 7, is provided with and can forces its ratchet spring that moves along clockwise direction 7.2.The clamp 7.1 of ratchet 7 is and ring-shaped step 2.1 corresponding opening claws.Driving mechanism comprises runner 11, connecting rod 10 and rocking arm 12, and runner 11 is arranged in the door leaf, and connecting rod 10 is provided with two covers with rocking arm 12, is separately positioned on the interior outside of runner 11.One end of connecting rod 10 is connected with runner 11, and the other end of connecting rod 10 is connected with rocking arm 12.Rocking arm 12 pivot angles are 0～50 °.Also be connected with push strut 9 on the rocking arm 12.
The course of work of the utility model is following:
When door leaf cuts out, doorframe compressing push rod 3, push rod 3 shrinks, and drives conic nut 6 extruding ratchets 7 upper ends; Ratchet 7 is counterclockwise rotated, and at this moment, the clamp 7.1 of ratchet 7 lower ends withdraws from the ring-shaped step 2.1 of latch 2 lower ends; Under the effect of latch spring 5, latch 2 stretches out, and pins door leaf.
When accidents such as breaking out of fire, the escape personnel pushes away push strut 9, drives rocking arm 12; the rocking arm pivot angle forwards-75 ° to by-25 °, through connecting rod 10 runner 11 is rotated by rocking arm 12, thereby makes latch 2 overcome the spring force of latch spring 5 through pull bar 8; latch 2 shrinks; the stroke of corresponding latch is 0 to 20 millimeter, and door leaf can be open, and realizes escape.When door leaf is open, push rod 3 breaks away from the compressing of doorframes, and under the effect of push rod spring 4, push rod 3 stretches out.Ratchet 7 upper ends and conic nut 6 disengage, and this moment, ratchet 7 rotated along clockwise direction under ratchet spring 7.2 effects, made the clamp 7.1 of the lower end of ratchet 7 block latch 2.Therefore, even the escape personnel unclamps push strut 9, latch 2 still can not stretch out, and latch 2 can not contact with ground, has reduced the resistance of closing the door, and accessible the resetting of assurance door leaf closed.
Door lock is furnished with two cover driving mechanisms, is arranged in the interior outside of door leaf, and the interior outside can be pushed door lock open, realizes the bi-directional door escape.
Claims (6)
1. a railway tunnel passageway for fire apparatus antiknock two-way escaping door lock of preventing fires; The pull bar (8) that comprises lock door mechanism, driving mechanism and connection lock door mechanism and driving mechanism; Said lock door mechanism comprises lock body (1) and is arranged on latch (2), latch spring (5), push rod (3) and the push rod spring (4) in the lock body (1); Said driving mechanism comprises runner (11), connecting rod (10) and rocking arm (12); Said latch (2) is arranged in parallel with push rod (3) side by side, and it is characterized in that: said lock door mechanism also comprises conic nut (6) and ratchet (7), and said conic nut (6) is arranged on the lower end of push rod spring (4); Said ratchet (7) middle part is hinged on the lock body (1); The upper end of said ratchet (7) is corresponding with the conical surface of said conic nut (6), and the clamp (7.1) of the lower end of said ratchet (7) is corresponding with the ring-shaped step (2.1) that is arranged on latch (2) lower end, on ratchet (7), is provided with and can forces its ratchet spring that moves along clockwise direction (7.2).
2. the railway tunnel according to claim 1 passageway for fire apparatus antiknock two-way escaping door lock of preventing fires; It is characterized in that: said runner (11) is arranged in the door leaf; Said connecting rod (10) and rocking arm (12) are provided with two covers; Be separately positioned on the interior outside of runner (11), an end of said connecting rod (10) is connected with runner (11), and the other end of said connecting rod (10) is connected with rocking arm (12).
3. the railway tunnel according to claim 1 passageway for fire apparatus antiknock two-way escaping door lock of preventing fires is characterized in that: the clamp (7.1) of said ratchet (7) for and the corresponding opening claw of ring-shaped step (2.1).
4. the railway tunnel according to claim 1 passageway for fire apparatus antiknock two-way escaping door lock of preventing fires, it is characterized in that: said lock door mechanism is a world double bolt structure.
5. the railway tunnel according to claim 1 passageway for fire apparatus antiknock two-way escaping door lock of preventing fires, it is characterized in that: said rocking arm (12) pivot angle is 0～50 °.
6. the railway tunnel according to claim 1 passageway for fire apparatus antiknock two-way escaping door lock of preventing fires is characterized in that: also be connected with push strut (9) on the said rocking arm (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120556531 CN202380856U (en) | 2011-12-26 | 2011-12-26 | Explosion-proof and fire-proof bidirectional escape door lock of fire fighting access of railway tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120556531 CN202380856U (en) | 2011-12-26 | 2011-12-26 | Explosion-proof and fire-proof bidirectional escape door lock of fire fighting access of railway tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202380856U true CN202380856U (en) | 2012-08-15 |
Family
ID=46629369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120556531 Expired - Lifetime CN202380856U (en) | 2011-12-26 | 2011-12-26 | Explosion-proof and fire-proof bidirectional escape door lock of fire fighting access of railway tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202380856U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107916957A (en) * | 2017-12-11 | 2018-04-17 | 中铁第四勘察设计院集团有限公司 | A kind of totally enclosed type protection door system suitable for railway tunnel |
| CN109458073A (en) * | 2017-09-06 | 2019-03-12 | 林勰 | A kind of middle control pin lock of the one-touch button switch of band |
-
2011
- 2011-12-26 CN CN 201120556531 patent/CN202380856U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109458073A (en) * | 2017-09-06 | 2019-03-12 | 林勰 | A kind of middle control pin lock of the one-touch button switch of band |
| CN107916957A (en) * | 2017-12-11 | 2018-04-17 | 中铁第四勘察设计院集团有限公司 | A kind of totally enclosed type protection door system suitable for railway tunnel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |