CN209384867U - Concealed fire prevention shutting window device - Google Patents
Concealed fire prevention shutting window device Download PDFInfo
- Publication number
- CN209384867U CN209384867U CN201821290087.0U CN201821290087U CN209384867U CN 209384867 U CN209384867 U CN 209384867U CN 201821290087 U CN201821290087 U CN 201821290087U CN 209384867 U CN209384867 U CN 209384867U
- Authority
- CN
- China
- Prior art keywords
- piston
- casing
- pressure reducing
- reducing valve
- tooth shaft
- 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.)
- Active
Links
Landscapes
- Safety Valves (AREA)
Abstract
The utility model relates to extinguisher technical fields, specifically disclose a kind of concealed fire prevention shutting window device, including casing, piston, tooth shaft, it is characterized by: the casing is equipped with the cavity through casing, the side of casing is equipped with the mounting hole communicated with cavity, the both ends of casing are equipped with the plug end to end for sealing cavity, the piston is located in cavity, the both ends of piston and end to end plug between be respectively equipped with the first spring and pressure reducing valve, piston is equipped with through the channel of piston, pressure reducing valve installation is set to one end of piston channel, pressure reducing valve is equipped with the steel ball for blocking valve port, steel ball is resisted by second spring and is set in pressure reducing valve, the middle part of the piston is equipped with perforative through slot, the side wall of through slot is equipped with rack gear, the increment of the tooth shaft is placed in the groove of piston across mounting hole and is engaged with rack, the other end of tooth shaft connects branch Arm；When external force is greater than the pressure of piston and tooth shaft receiving, it can be achieved that automatically unloading, prevents piston tooth shaft from damaging.
Description
Technical field
The utility model relates to extinguisher technical fields, and in particular to a kind of concealed fire prevention shutting window device.
Background technique
Shutting window device is called automatic window closing device, electronic shutting window device, and movable type fireproof window headstock gear etc. is applied to all kinds of activities
Formula fire window.It solves movable fire window and is usually in closing, thus the problem of cannot reaching ventilation and daylighting.
Currently, traditional shutting window device, when sash switch obtains too fast, the hydraulic oil circuit in oil circuit is too violent too fast, will cause
Pressure is excessive in oil circuit, is easy to appear oil leakage phenomenon, and piston tooth shaft also be easy to cause damage.
Utility model content
In order to overcome defect existing for traditional shutting window device, the utility model provides a kind of concealed fire prevention shutting window device, when outer
, it can be achieved that automatically unloading, prevents piston tooth shaft from damaging when boundary's power is greater than the pressure that piston is born with tooth shaft.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of concealed fire prevention shutting window device, including
Casing, piston, tooth shaft, it is characterised in that: the casing is equipped with the cavity through casing, and the side of casing is equipped with and cavity
The mounting hole communicated, the both ends of casing are equipped with the plug end to end for sealing cavity, and the piston is located in cavity, and the two of piston
The first spring and pressure reducing valve are held and are respectively equipped between plug end to end, piston is equipped with through the channel of piston, and pressure reducing valve installation is set
In one end of piston channel, pressure reducing valve is equipped with the steel ball for blocking valve port, and steel ball is resisted by second spring and is set to pressure reducing valve
Interior, the middle part of the piston is equipped with perforative through slot, and the side wall of through slot is equipped with rack gear, and the increment of the tooth shaft passes through mounting hole simultaneously
It is placed in the groove of piston and is engaged with rack, the other end connecting support arm of tooth shaft.
Preferably, the upper and lower side of the tooth shaft passes through needle bearing respectively and powder metallurgy set connects with casing internal
It connects, and is tightly connected by middle plug with mounting hole.
Further, cushion rubber in middle plug is equipped between the inner wall and tooth shaft of the middle plug, in the outer wall and mounting hole of middle plug
Cushion rubber beyond the Great Wall in being equipped between wall.
Preferably, the inner end of the pressure reducing valve is equipped with the filter screen for being close to pressure reducing valve；The outer end of pressure reducing valve and the oil of casing
Road connection, oil circuit are equipped with the wick for adjusting oil circuit oil return size, and wick is mounted on casing.
Further, it is connected between the wick and casing by wick rubber sealing.
Preferably, the plug rubber sealing end to end that passes through between plug and casing end to end connects.
The beneficial effects of the utility model are: when external force is greater than the pressure of piston and tooth shaft receiving, it can be achieved that automatic
Release prevents piston tooth shaft from damaging.
Detailed description of the invention
Fig. 1 is the explosive view of concealed fire prevention shutting window device.
Fig. 2 is the main sectional view of concealed fire prevention shutting window device.
Fig. 3 is the cross-sectional view of bowing of concealed fire prevention shutting window device.
Fig. 4 is the schematic enlarged-scale view of pressure reducing valve.
Specific embodiment
The technical issues of in order to keep the utility model solved, technical solution and beneficial effect are more clearly understood, below
In conjunction with attached drawing and embodiment, the utility model is further described.
As shown in Figs 1-4, a kind of concealed fire prevention shutting window device of the utility model, including casing 1, piston 2, tooth shaft 3, casing
1 is equipped with the cavity 4 through casing, and the side of casing 1 is equipped with the mounting hole communicated with cavity 4, and the both ends of casing 1, which are equipped with, to be used for
Plug 5 end to end of sealing cavity fill in be tightly connected between 5 and casing 1 by plug cushion rubber 20 end to end end to end.Piston 2 is located at cavity 4
It is interior, the first spring 6 and pressure reducing valve 7 are respectively equipped between the both ends of piston 2 and end to end plug 5, piston 2 is equipped with through piston 2
Channel, the installation of pressure reducing valve 7 are set to the one end in 2 channel of piston, and pressure reducing valve 7 is equipped with the steel ball 8 for blocking valve port, and steel ball 8 passes through
Second spring 9, which resists, to be set in pressure reducing valve 7, and the middle part of piston 2 is equipped with perforative through slot, and the side wall of through slot is equipped with rack gear, tooth shaft 3
Increment pass through mounting hole and be placed in the groove of piston 2 and be engaged with rack, the other end connecting support arm 10 of tooth shaft 3.
The upper and lower side of tooth shaft 3 passes through needle bearing 11 respectively and powder metallurgy set 12 and connects inside casing 1, and passes through
Plug 13 is tightly connected with mounting hole.Cushion rubber 14 in middle plug, the outer wall and peace of middle plug 13 are equipped between the inner wall and tooth shaft 3 of middle plug 13
Cushion rubber 15 beyond the Great Wall in being equipped between dress hole inner wall.
The inner end of pressure reducing valve 7 is equipped with the filter screen 16 for being close to pressure reducing valve 7；The outer end of pressure reducing valve 7 and the oil circuit 17 of casing 1 connect
Logical, oil circuit 17 is equipped with the wick 18 for adjusting oil circuit oil return size, and wick 18 is mounted on casing 1；Wick 18 and casing 1 it
Between by wick cushion rubber 19 be tightly connected.
In use process, casing is mounted on fire prevention window frame, and the other end of support arm is connect with fire prevention sash edge.
When the sash is opened, support arm 10 drives tooth shaft 3 that piston 2 is made to move right, while the first spring 6 is compressed.Cavity 4
The resisting medium on interior right side flows to left side, and sash is released, and compressed first spring 6 just presses piston 2,2 band of piston to the left
The sash that movable tooth axis 3 connects support arm 10 goes to its closed position, and the resisting medium in left side flows to right side in cavity 4.
When open or close sash speed be greater than resisting medium flow direction speed, over-voltage will be generated, at this time damping be situated between
Matter can open the steel ball 8 of 7 valve port of pressure reducing valve, and second spring 9 is compressed, and resisting medium can pass through from 7 valve port of pressure reducing valve,
Over-voltage phenomenon is eliminated, realizes automatically unloading, while being also prevented from the damage of piston tooth shaft.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements and improvements within novel spirit and principle, should all fall in the protection of the utility model
Within the scope of.
Claims (6)
1. a kind of concealed fire prevention shutting window device, including casing, piston, tooth shaft, it is characterised in that: the casing be equipped with through
The cavity of casing, the side of casing are equipped with the mounting hole communicated with cavity, and the both ends of casing are equipped with for sealing cavity end to end
Plug, the piston is located in cavity, the both ends of piston and is respectively equipped with the first spring and pressure reducing valve between filling in end to end, and piston is set
There is the channel through piston, pressure reducing valve installation is set to one end of piston channel, and pressure reducing valve is equipped with the steel ball for blocking valve port,
Steel ball is resisted by second spring and is set in pressure reducing valve, and the middle part of the piston is equipped with perforative through slot, and the side wall of through slot is equipped with
Rack gear, the increment of the tooth shaft is placed in the groove of piston across mounting hole to be engaged with rack, and the other end of tooth shaft connects branch
Arm.
2. concealed fire prevention shutting window device according to claim 1, it is characterised in that: the upper and lower side of the tooth shaft leads to respectively
It crosses needle bearing and powder metallurgy set is connect with casing internal, and be tightly connected by middle plug with mounting hole.
3. concealed fire prevention shutting window device according to claim 2, it is characterised in that: between the inner wall and tooth shaft of the middle plug
Equipped with cushion rubber in middle plug, be equipped between the outer wall and inner wall of the hole installing of middle plug in cushion rubber beyond the Great Wall.
4. concealed fire prevention shutting window device according to claim 1, it is characterised in that: the inner end of the pressure reducing valve, which is equipped with, to be close to
The filter screen of pressure reducing valve；The outer end of pressure reducing valve and the oil communication of casing, oil circuit are equipped with the oil for adjusting oil circuit oil return size
Core, wick are mounted on casing.
5. concealed fire prevention shutting window device according to claim 4, it is characterised in that: pass through between the wick and casing
The connection of wick rubber sealing.
6. concealed fire prevention shutting window device according to claim 1, it is characterised in that: described leads between plug and casing end to end
Cross plug rubber sealing connection end to end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821290087.0U CN209384867U (en) | 2018-08-12 | 2018-08-12 | Concealed fire prevention shutting window device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821290087.0U CN209384867U (en) | 2018-08-12 | 2018-08-12 | Concealed fire prevention shutting window device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209384867U true CN209384867U (en) | 2019-09-13 |
Family
ID=67869071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821290087.0U Active CN209384867U (en) | 2018-08-12 | 2018-08-12 | Concealed fire prevention shutting window device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209384867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670985A (en) * | 2019-09-25 | 2020-01-10 | 梁泉贤 | Door closer for fire door |
-
2018
- 2018-08-12 CN CN201821290087.0U patent/CN209384867U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670985A (en) * | 2019-09-25 | 2020-01-10 | 梁泉贤 | Door closer for fire door |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206707493U (en) | Hidden type hydraulic fire-proof door closer | |
| CN108061069B (en) | Buffer overflow valve | |
| CN106704618B (en) | High-performance gate valve | |
| CN209384867U (en) | Concealed fire prevention shutting window device | |
| CN113357385A (en) | Gate valve capable of preventing sealing surface from being scratched during opening and closing | |
| CN218718929U (en) | Middle cavity safety pressure relief wedge gate valve | |
| CN204458961U (en) | Air buffer | |
| CN203431212U (en) | Sleeve adjusting valve with energy storage seal ring | |
| CN101985990B (en) | Metal bidirectional sealing valve cavity safety relief device | |
| CN218207883U (en) | Gate valve with protection function | |
| CN205135204U (en) | Door closer | |
| CN207454848U (en) | A kind of safety valve for closer and the closer with the safety valve | |
| CN202081763U (en) | Floor spring with simple structure | |
| CN201836479U (en) | Safety relief device of metal two-way sealing valve cavity | |
| CN207297901U (en) | A kind of dark valve with cut-off spool | |
| CN207393991U (en) | A kind of gate valve | |
| CN207829680U (en) | A kind of concealed fire prevention shutting window device | |
| CN203940114U (en) | A kind of draining part and with the drainage mechanism of this draining part | |
| CN220540388U (en) | Novel high-pressure insertion fixed swing check valve | |
| CN211010117U (en) | Differential pressure signal valve | |
| CN217978317U (en) | Bidirectional hidden automatic door closer | |
| CN209084093U (en) | A kind of valve for pressure difference | |
| CN209875982U (en) | Stop valve with excellent shock resistance | |
| CN114294288B (en) | Overflow valve | |
| CN219734392U (en) | Water drain valve of engine oil cooler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |