CN202363358U - Self-locking pressure switch - Google Patents
Self-locking pressure switch Download PDFInfo
- Publication number
- CN202363358U CN202363358U CN2011204561401U CN201120456140U CN202363358U CN 202363358 U CN202363358 U CN 202363358U CN 2011204561401 U CN2011204561401 U CN 2011204561401U CN 201120456140 U CN201120456140 U CN 201120456140U CN 202363358 U CN202363358 U CN 202363358U
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- CN
- China
- Prior art keywords
- self
- locking
- pressure switch
- upper shell
- piston body
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- Expired - Lifetime
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model belongs to the technical field of fire-fighting security and discloses a self-locking pressure switch. The self-locking pressure switch includes an upper shell, a middle body and a lower shell together connected successively. A step hole is arranged in the middle body along a longitudinal axis. A piston body and a push rod are disposed in the step hole. The piston body is provided with a lock groove. A compression spring is sleeved on the push rod. A pressure sampling hole is arranged in the upper shell along the longitudinal axis. A button opposite to the push rod is installed on the base of the lower shell. A side face of the middle body is provided with a self-locking mechanism having a locking rod. The locking rod of the self-locking mechanism penetrates through the side wall of the middle body and matches with the lock groove arranged in the piston body correspondingly.
Description
Technical field
The utility model belongs to the security against fire technical field, is specifically related to a kind of self-locking pressure switch.
Background technology
Pressure switch is a kind of pressure signal feedback device that is applied on the gas automatic fire extinguishing system.In the automatic fire extinguishing system, the pressure signal feedback device is parts of the normal signal feedback that starts of system being given the fire extinguishing system control device.Whether after the normal startup of system, the pressure signal feedback device feeds back to the fire extinguishing system control device after converting the pressure signal in the extinguishing chemical transfer pipeline to the signal of telecommunication, normally start, and then corresponding audio visual signal is provided in order to judge system.
At present; The pressure signal feedback device that uses in the automatic fire extinguishing system is the formula of automatically reseting, i.e. after the normal startup of system, feedback device becomes the signal of telecommunication to export to control device the pipeline inner pressure conversion of signals; When losing pressure in the pipeline, it automatically resets and the output of breaking off the signal of telecommunication.But clear and definite specified signal feedback device should have auto-lock function among the revised new standard GB25972-2010 " gas extinguishing system and parts ", can only manual reset after the action.
Summary of the invention
In order to overcome the deficiency of above-mentioned prior art, the purpose of the utility model has been to provide a kind of simple in structure, easy for installation, self-locking pressure switch that performance is safe and reliable.
In order to achieve the above object, the utility model adopts following technical scheme to be achieved.
A kind of self-locking pressure switch is characterized in that, comprises the upper shell, intermediate and the lower house that connect successively; Said intermediate offers stepped hole along longitudinal axis; Be equipped with piston body and push rod in the stepped hole, piston body is provided with locked groove, is set with the compression spring on the push rod; Said upper shell offers the force samples hole along longitudinal axis, lower house bottom be equipped with said push rod over against button; The side of said intermediate be provided with one have a locking bar self-locking mechanism, the locking bar of self-locking mechanism runs through the locked groove corresponding matching that is provided with on intermediate sidewall and the said piston body.
The characteristics of the utility model are with further improving:
The junction of said upper shell and intermediate is provided with sealing ring.
Said piston body top is provided with sealing ring.
Said lower house is sleeved on the intermediate.
Said upper shell is sleeved on the intermediate.
Said self-locking mechanism is arranged on the upper shell side, and the locking bar of said self-locking mechanism runs through the locked groove corresponding matching that is provided with on upper shell, intermediate sidewall and the said piston body successively.
Said self-locking mechanism comprises fixed cover, runs through the locking bar of fixed cover, is arranged on the handle of locking bar outer end and is sleeved on helical spring on the locking bar.
In the utility model, upper shell, intermediate and lower house are connected successively, and said intermediate offers stepped hole along longitudinal axis, are equipped with piston body and push rod in the stepped hole, and piston body is provided with locked groove, are set with the compression spring on the push rod; Said upper shell offers the force samples hole along longitudinal axis, lower house bottom be equipped with said push rod over against button, said structure can be realized the feedback of pressure signal; The side of intermediate be provided with one have a locking bar self-locking mechanism; The locking bar of self-locking mechanism runs through the locked groove corresponding matching that is provided with on intermediate sidewall and the said piston body; This part-structure can be realized the self-locking of pressure feedback signal; Be that pressure feedback signal remained unchanged after place, force samples hole pressure disappeared.
In addition, the junction of upper shell and intermediate is provided with sealing ring, and piston body top is provided with sealing ring, can prevent pressure leakages.Upper shell and lower house are set on the intermediate, make the simple in structure, easy for installation of pressure switch.Self-locking mechanism comprises fixed cover, runs through the locking bar of fixed cover, is arranged on the handle of locking bar outer end and is sleeved on helical spring on the locking bar, employing be the mode of mechanical self-latching, manual unlocking, performance is safe and reliable.
Description of drawings
Give below and close accompanying drawing and embodiment is done further explain to the structure and the operation principle of the utility model.
Fig. 1 is the structural representation of a kind of self-locking pressure switch of the utility model;
Among the figure: 1, upper shell; 2, O RunddichtringO; 3, piston body; 4, intermediate; 5, lower house; 6, force samples hole; 7, locked groove; 8, fixed cover; 9, handle; 10, locking bar; 11, helical spring; 12, compression spring; 13, push rod; 14, button.
Embodiment
With reference to Fig. 1, be a kind of self-locking pressure switch of the utility model, wherein, intermediate 4 connects upper shell 1 and lower house 5 respectively, and upper shell 1 adopts thread connecting mode to be set on the intermediate 4 with lower house 5.Intermediate 4 offers stepped hole along longitudinal axis; Be equipped with piston body 3 and push rod 13 in the stepped hole, piston body 3 is an one with push rod 13, and the locked groove 7 that is provided with on the piston body 3 is a cannelure; Be set with compression spring 12 on the push rod 13, the elastic return direction of compression spring 12 upwards.Upper shell 1 offers force samples hole 6 along longitudinal axis; Force samples hole 6 is communicated with stepped hole; The junction of upper shell 1 and intermediate 4 is provided with O-ring seals 2, and piston body 3 tops are provided with O-ring seals 2, and the O-ring seals on the piston body 3 is positioned at the top of locked groove 7.Be equipped with in lower house 5 bottoms with push rod 13 over against button 14, the binding post of button 14 is positioned at lower house 5 outsides, the closure representative of button 14 has collected pressure signal.
Self-locking mechanism is arranged on upper shell 1 side.Wherein, self-locking mechanism comprise fixed cover 8, run through fixed cover 8 locking bar 10, be arranged on the handle 9 of locking bar 10 outer ends and be sleeved on helical spring 11 on the locking bar 10.Fixed cover 8 and upper shell 1 are through being threaded.The restoring force of helical spring 11 shakes hands 9 dorsad, vertically points to upper shell 1 side.The locking bar 10 of self-locking mechanism runs through locked groove 7 corresponding matching that are provided with on upper shell 1, intermediate 4 sidewalls and the piston body 3 successively.
Upper shell is connected with the pipeline of gas extinguishing system.When breaking out of fire; Gas extinguishing system begins fire extinguishing, and under the effect of gas pressure, gas moves downward through the force samples hole promotion piston body and the push rod of upper shell; Push rod compresses the button closure; This moment, the locking bar of self-locking mechanism stretched into locked groove under helical spring effect, and button is closed, the pressure signal of having worked to control device feedback gas fire extinguishing system.Even the pressure in the pipeline of gas extinguishing system disappears, show that the pressure signal that gas extinguishing system had been worked does not disappear, realize the self-locking of pressure switch.During recovery, need the pulling handle, locking bar and locked groove are broken away from, piston body and push rod move upward under the effect of compression spring, and push-button switch breaks off, and pressure signal disappears.
Although more than combine accompanying drawing that the embodiment of the utility model is described, the utility model is not limited to above-mentioned specific embodiments and applications field, and above-mentioned specific embodiments only is schematic, guiding, rather than restrictive.Those of ordinary skill in the art under the situation that does not break away from the scope that the utility model claim protected, can also make a variety of forms under the enlightenment of this specification, these all belong to the row of the utility model protection.
Claims (7)
1. a self-locking pressure switch is characterized in that, comprises the upper shell, intermediate and the lower house that connect successively; Said intermediate offers stepped hole along longitudinal axis; Be equipped with piston body and push rod in the stepped hole, piston body is provided with locked groove, is set with the compression spring on the push rod; Said upper shell offers the force samples hole along longitudinal axis, lower house bottom be equipped with said push rod over against button; The side of said intermediate be provided with one have a locking bar self-locking mechanism, the locking bar of self-locking mechanism runs through the locked groove corresponding matching that is provided with on intermediate sidewall and the said piston body.
2. according to the said self-locking pressure switch of claim 1, it is characterized in that the junction of said upper shell and intermediate is provided with sealing ring.
3. according to the said self-locking pressure switch of claim 1, it is characterized in that said piston body top is provided with sealing ring.
4. according to the said self-locking pressure switch of claim 1, it is characterized in that said lower house is sleeved on the intermediate.
5. according to the said self-locking pressure switch of claim 1, it is characterized in that said upper shell is sleeved on the intermediate.
6. according to the said self-locking pressure switch of claim 1, it is characterized in that said self-locking mechanism is arranged on the upper shell side, the locking bar of said self-locking mechanism runs through the locked groove corresponding matching that is provided with on upper shell, intermediate sidewall and the said piston body successively.
7. according to the said self-locking pressure switch of claim 1, it is characterized in that said self-locking mechanism comprises fixed cover, runs through the locking bar of fixed cover, is arranged on the handle of locking bar outer end and is sleeved on helical spring on the locking bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204561401U CN202363358U (en) | 2011-11-17 | 2011-11-17 | Self-locking pressure switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204561401U CN202363358U (en) | 2011-11-17 | 2011-11-17 | Self-locking pressure switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363358U true CN202363358U (en) | 2012-08-01 |
Family
ID=46574522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204561401U Expired - Lifetime CN202363358U (en) | 2011-11-17 | 2011-11-17 | Self-locking pressure switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363358U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520869A (en) * | 2013-10-24 | 2014-01-22 | 浙江信达可恩消防实业有限责任公司 | Self-locking pressure signal feedback device |
| CN105536177A (en) * | 2016-02-29 | 2016-05-04 | 四川华川工业有限公司 | Special fire extinguishing system for public transport passenger compartment |
| CN106924923A (en) * | 2017-03-29 | 2017-07-07 | 浙江金盾消防器材有限公司 | One kind is tested oneself formula signal feedback device |
| CN108533827A (en) * | 2018-06-11 | 2018-09-14 | 浙江信达可恩消防实业有限责任公司 | A kind of initial signal feedback device for having pressure energy self-locking and energy hand-reset |
-
2011
- 2011-11-17 CN CN2011204561401U patent/CN202363358U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103520869A (en) * | 2013-10-24 | 2014-01-22 | 浙江信达可恩消防实业有限责任公司 | Self-locking pressure signal feedback device |
| CN103520869B (en) * | 2013-10-24 | 2016-09-07 | 浙江信达可恩消防实业有限责任公司 | Self-locking pressure signal feedback device |
| CN105536177A (en) * | 2016-02-29 | 2016-05-04 | 四川华川工业有限公司 | Special fire extinguishing system for public transport passenger compartment |
| CN106924923A (en) * | 2017-03-29 | 2017-07-07 | 浙江金盾消防器材有限公司 | One kind is tested oneself formula signal feedback device |
| CN108533827A (en) * | 2018-06-11 | 2018-09-14 | 浙江信达可恩消防实业有限责任公司 | A kind of initial signal feedback device for having pressure energy self-locking and energy hand-reset |
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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 |
Granted publication date: 20120801 |
|
| CX01 | Expiry of patent term |