CN207454848U - A kind of safety valve for closer and the closer with the safety valve - Google Patents
A kind of safety valve for closer and the closer with the safety valve Download PDFInfo
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- CN207454848U CN207454848U CN201721607571.7U CN201721607571U CN207454848U CN 207454848 U CN207454848 U CN 207454848U CN 201721607571 U CN201721607571 U CN 201721607571U CN 207454848 U CN207454848 U CN 207454848U
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- hole
- safety valve
- spring
- closer
- outer casing
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Abstract
The utility model discloses a kind of safety valve for closer and with the safety valve closer, a kind of safety valve for closer, including outer casing seat, seal receptacle；Outer casing seat has the cylindrical cavity of one end open, and one end of the openend away from cylindrical cavity is equipped with oil-through-hole；Seal receptacle has the cylinder chamber of one end open, and the part sealing that external seal seat tool has cylinder chamber is plugged in cylindrical cavity, and seal receptacle is provided with first through hole on the end face away from its cylinder chamber；Spool, spring are set in cylinder chamber, and spool is located at the inside of first through hole and is abutted with one end of spring.The utility model, which discloses, provides a kind of safety valve for closer; when door or window are opened, spool after spring-compressed, will make hydraulic oil by entering into oil hole in inner cavity chamber; flow direction is damped when closing door or window, protective effect has been played to closer when preventing too urgent excess load from closing.
Description
Technical field
It is more particularly to a kind of for closer the utility model is related to the technical field of door and window closing assembly
Safety valve and the closer with the safety valve.
Background technology
In daily life, door and window closer, set closer must install all types of houses according to Ministry of Public Security's requirement
It is in inner cavity to be equipped with piston and gear more, one-way relief valves are mounted in piston cavity, cooperation piston is made with gear fortune axis, safety valve
As important component in closer, when closing window and windowing, the safety valve of installation piston one end is opened or closed under the action of oil pressure
It closes, turns off without damage during device excess load, play a protective role to closer and window and door frame, existing door closer, closer
It is mostly the not no check valve with safety valve to configure, during to too urgent excess load from not protective effect, and damaged closer and
Door and window, therefore a kind of overburden protection safety valve is such as provided and is automatically reset, it is ability to the safety valve that closer shields
The problem solved needed for field technique personnel.
Utility model content
In view of this, the utility model provides a kind of safety valve for closer, overcome in the prior art due to
The technical issues of overloading and damage caused by promptly opening a window or closing window.
To achieve these goals, the utility model adopts the following technical solution：
A kind of safety valve for closer, including outer casing seat, seal receptacle；The outer casing seat has the cylindricality of one end open
Cavity, one end of the openend away from the cylindrical cavity are equipped with oil-through-hole；The seal receptacle has the cylindricality of one end open
Chamber, the part sealing that the external seal seat tool has cylinder chamber are plugged in the cylindrical cavity, and the seal receptacle is away from its cylindricality
First through hole is provided on the end face of chamber；Spool, spring are set in the cylinder chamber, and the spool is located at the first through hole
Inside and abutted with one end of the spring.
The beneficial effects of the utility model are：It is provided in the utility model a kind of mounted on piston gap end in closer
Safety valve, when door or window are closed, safety valve is subject to excessive oil pressure that the spool inside safety valve is made to compress spring, make hydraulic oil according to
The secondary opposite side that piston is flowed to by first through hole and oil-through-hole, when preventing that too urgent excess load from closing door or window, to closer
Pressure is excessive and damages closer, while on the door or window plays the role of protection.
Preferably, spring detent is further included, side wall of the outer casing seat close to openend is equipped with opening or hole, described
Corresponding with the aperture position on the side wall of seal receptacle to be equipped with the second through hole, the spring detent passes through the opening or hole
And second through hole be inserted into the spring and end of the spring detent be located at outer casing seat side wall inside or
It is concordant with the lateral surface of outer casing seat side wall.
Preferably, the spring detent is pin, and second through hole is symmetrically arranged two, and the pin is successively
Spring positioning is realized through the opening or hole and the second through hole and spring；Wherein, the inoperative of the setting limited spring of pin
The movement of state and spring is fixed in seal receptacle.
Preferably, the oil scupper of multiple strips is set on outer casing seat madial wall, and it is in order in operation to set oil scupper
Storage and excretion hydraulic oil.
Preferably, the first through hole is circle, and the spool is steel ball, and the diameter of the steel ball is more than described first and leads to
The diameter in hole.
Preferably, the seal receptacle includes cylindrical tube and the circular end plate for being connected to cylindrical tube one end, the circle
End plate diameter is more than the internal diameter of cylindrical tube outer diameter and cylindrical cavity.
Preferably, the outside of the oil-through-hole is equipped with filter screen.It is to be filtered through inside safety valve to set filter screen
Through hole impurity, prevent obstruction oilhole.
Preferably, O-ring seal is set between outer casing seat and seal receptacle.Make to form closing between outer casing seat and sealing ring
Space can avoid the leakage of hydraulic oil.
Preferably, outer casing seat is made of powder metallurgy.Specifically using 20CrMo powder metallurgy, quenching degree is higher, and nothing is returned
Fiery brittleness, weldability is fairly good, forms the tendency very little of cold cracking, and machinability and cold strain plasticity are good.
The utility model is used for a kind of closer, and including housing, the enclosure interior is equipped with tooth shaft, piston, safety valve, pressure
Contracting spring, the gear on the piston coordinate with tooth shaft, and the internal piston is cavity, and one end of cavity has opening, described
Safety valve is installed on the openend of the piston cavity, and one end of the compression spring is abutted with piston, the compression spring
The other end is abutted with one end of the housing.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiment of the utility model, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 attached drawings are installed on the schematic diagram on closer for the utility model；
Fig. 2 attached drawings are the exploded perspective view of the utility model safety valve；
Fig. 3 attached drawings show the cross-sectional view of A for Fig. 1 centre circles；
Fig. 4 attached drawings are the utility model outer casing seat front view；
Fig. 5 attached drawings are the utility model outer casing seat bottom view.
Wherein：1st, filter screen, 2, outer casing seat, 3, pin, 4, spring, 5, spool, 6, sealing ring, 7, seal receptacle, 8, cylindricality
Chamber, 9, safety valve, 10, piston, 11, compression spring, 12, tooth shaft, 21, opening, 22, oil scupper, 23, oil-through-hole, 71 round noses
Plate, 72 first through hole, 73 second through holes.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
The utility model discloses a kind of safety valve for closer, including outer casing seat 2, seal receptacle 7；Outer casing seat 2 has
There is the cylindrical cavity of one end open, one end of the openend away from cylindrical cavity is equipped with oil-through-hole 23；Seal receptacle 7 has one end
The cylinder chamber 8 of opening, the part sealing that external seal seat 7 has cylinder chamber 8 are plugged in cylindrical cavity, and seal receptacle 7 is away from its column
First through hole 72 is provided on the end face of shape chamber 8；Spool 5, spring 4 are set in cylinder chamber 8, and spool 5 is located at first through hole 72
Inside and abutted with one end of spring 4.
Spring detent is further included in the utility model, side wall of the outer casing seat 2 close to openend is equipped with opening 21, opens
Mouthfuls 21 are convenient for the installation of spring detent, and 21 positions are corresponding is equipped with the second through hole 73 with the opening on the side wall of seal receptacle 7,
It is to penetrate spring detent so as to fixed spring, the movement of limited spring 4.Spring detent passes through opening 21 and second
The end of the insertion 4 inner spring locating piece of spring of through hole 73 is located at the inside or outer with 2 side wall of outer casing seat of 2 side wall of outer casing seat
Side is concordant.It is installed on if stretching out 2 side wall of outer casing seat and will influence safety valve 9 in piston, because the side wall of its outer cover for seat 2 is tight
It is affixed on the madial wall of piston 10.
Wherein spring detent is pin 3, and pin 3 is cylinder, and the second through hole 73 is symmetrically arranged two, pin
3 sequentially pass through 21 and second through hole 73 of opening and the realization spring positioning of spring 4.It is set on its 2 madial wall of outer casing seat multiple
The oil scupper 22 of strip, hydraulic oil flows in oil scupper 22 function of playing oil storage during enabling or window, is closing
When door or window, the hydraulic oil outflow in oil scupper 22 plays the function of oil extraction.
First through hole 72 is circle, and spool 5 is steel ball, and the diameter of steel ball is greater than the diameter of first through hole 72, steel
Ball can just block first through hole 72.Seal receptacle 7 includes cylindrical tube and the circular end plate 71 for being connected to cylindrical tube one end,
Its 71 diameter of circular end plate is more than the internal diameter of cylindrical tube outer diameter and cylindrical cavity, is set in convenient for it in outer casing seat 2, and will not
It slidably reciprocates.Its first through hole 72 is arranged in circular end plate 71.
Wherein, O-ring seal 6 between outer casing seat 2 and seal receptacle 7 is set, plays the role of sealing；When enabling or window
When, hydraulic oil is flowed in oil scupper 22, is avoided from the gap leakage between outer casing seat 2 and seal receptacle 7.And outer casing seat uses
20CrMo powder metallurgy is made, and material quenching degree is higher, and no temper brittleness, weldability is fairly good, forms the tendency of cold cracking very
Small, machinability and cold strain plasticity are good, extend the service life of safety valve 9.
The utility model additionally provides a kind of closer, and including housing, enclosure interior is equipped with tooth shaft 12, piston 10, safety
Valve 9, compression spring 11, the gear on piston 10 coordinate with tooth shaft 12, and 10 inside of piston is cavity, one end one end of cavity
Opening, safety valve are installed on the openend of 10 cavity of piston, and 9 need of safety valve are positioned over tight with 10 inner wall of piston in cylinder chamber
Patch, one end of spring 11 are abutted with piston 10, and the other end of spring 11 is abutted with one end of housing.
Referring to attached drawing 1 and 3, safety valve provided by the utility model, view direction in direction disclosed below such as attached drawing,
Above-mentioned safety valve 9 is mounted to inside piston 10, and hydraulic oil is filled in piston 10, when opening door or window, on closer
Pivoted arm drives tooth shaft 12 to rotate, so that tooth shaft 12 is moved to the left with piston 10, compresses the compression spring 11 in closer, liquid
Pressure oil is entered by filter screen 1 in the cylinder chamber 8 and oil scupper 22 of seal receptacle in safety valve 9；When shutdown or window, tooth shaft 12
Band piston 10 moves right, and compression spring 11 is made to be restored to extended configuration, if firmly too urgent shutdown or during window, in piston 10
The hydraulic oil in portion is subject to excessive pressure, and spool 5 is made to compress spring 4 to the left, since spool 5 leaves first through hole 72, the
One through hole 72 is opened, and hydraulic oil is flowed in cylinder chamber 8 by first through hole 72 and flowed to again by filter screen 1 inside piston 10, this
One process plays the role of buffering, slows down the closing velocity of window, can smoothly close window.It can avoid too urgent super
Load plays closer protective effect when closing, and not only closer is protected also to protect door and window.
When the utility model can make door or window closing, the safety valve 9 for being installed on 10 openend of piston is subject to excessive oil pressure
Spool 5 inside safety valve 9 is made to compress spring 4, makes that hydraulic oil passes sequentially through first through hole 72 and oil-through-hole 23 flows to piston 10
Opposite side, it is excessive to the pressure of closer and damage closer when preventing that too urgent excess load from closing door or window, at the same on the door or
Window plays the role of protection.When setting spring 4 and the cooperation of spool 5 can make oil pressure excessive, spool 5 crosses carrying in cylinder chamber
It moves and damages safety valve 9,3 fixed spring 4 of pin is set, the movement of spring 4 is avoided and influences the normal work of safety valve 9, and
And it is for impurity screening to set filter screen 1；The utility model is assembled using outer casing seat 2 with 7 nested type of seal receptacle and dismounting side
Just.The utility model is not limited to use in door and window closer, can be installed in other closers and used according to user demand, practical
Property is stronger.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or new using this practicality
Type.A variety of modifications of these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (8)
1. a kind of safety valve for closer, which is characterized in that including outer casing seat (2), seal receptacle (7)；The outer casing seat (2)
Cylindrical cavity with one end open, one end of the openend away from the cylindrical cavity are equipped with oil-through-hole (23)；It is described close
Sealing seat (7) has the cylinder chamber (8) of one end open, and it is described that there is the seal receptacle (7) the part sealing of cylinder chamber (8) to be plugged on
In cylindrical cavity, the seal receptacle (7) is provided with first through hole (72) on the end face away from its cylinder chamber (8)；The cylindricality
Spool (5), spring (4) be set in chamber (8), the spool (5) be located at the inside of the first through hole (72) and with the spring
(4) one end abuts.
2. a kind of safety valve for closer according to claim 1, which is characterized in that spring detent is further included,
Side wall of the outer casing seat (2) close to openend is equipped with opening (21) or hole, is opened on the side wall of the seal receptacle (7) with described
The position in mouth (21) or hole is corresponding to be equipped with the second through hole (73), and the spring detent passes through the opening (21) or hole and institute
It states in the second through hole (73) insertion spring (4) and the end of the spring detent is located at the outer casing seat (2) side wall
It is internal or concordant with the lateral surface of the outer casing seat (2) side wall.
3. a kind of safety valve for closer according to claim 2, which is characterized in that the spring detent is pin
Follow closely (3), second through hole (73) be symmetrically arranged two, the pin (3) sequentially pass through it is described opening (21) or hole and
Second through hole (73) and spring (4) realize spring positioning.
4. a kind of safety valve for closer according to claim 1, which is characterized in that on the inside of the outer casing seat (2)
The oil scupper (22) of multiple strips is set on wall.
5. a kind of safety valve for closer according to claim 1, which is characterized in that the first through hole (72) is
Circle, the spool (5) are steel ball, and the diameter of the steel ball is more than the diameter of the first through hole (72).
6. a kind of safety valve for closer according to claim 1, which is characterized in that the seal receptacle (7) includes
Cylindrical tube and the circular end plate (71) for being connected to described cylindrical tube one end, circular end plate (71) diameter are more than cylinder
The internal diameter of cylinder outer diameter and cylindrical cavity.
7. a kind of safety valve for closer according to claim 1, which is characterized in that outside the oil-through-hole (23)
Side is equipped with filter screen (1).
8. a kind of closer, which is characterized in that including housing, the enclosure interior is equipped with tooth shaft (12), piston (10), right will
It seeks 1 to 7 any one of them safety valve (9), compress spring (11), the gear on the piston (10) is matched somebody with somebody with the tooth shaft (12)
It closes, is cavity inside the piston (10), one end of cavity has opening, and the safety valve (9) is installed on the piston (10)
The openend of cavity, one end of the compression spring (11) is abutted with the piston (10), described to compress the another of spring (11)
End is abutted with one end of the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607571.7U CN207454848U (en) | 2017-11-27 | 2017-11-27 | A kind of safety valve for closer and the closer with the safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721607571.7U CN207454848U (en) | 2017-11-27 | 2017-11-27 | A kind of safety valve for closer and the closer with the safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207454848U true CN207454848U (en) | 2018-06-05 |
Family
ID=62277150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721607571.7U Active CN207454848U (en) | 2017-11-27 | 2017-11-27 | A kind of safety valve for closer and the closer with the safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207454848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185808A (en) * | 2019-06-18 | 2019-08-30 | 九牧厨卫股份有限公司 | A kind of angle valve |
-
2017
- 2017-11-27 CN CN201721607571.7U patent/CN207454848U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185808A (en) * | 2019-06-18 | 2019-08-30 | 九牧厨卫股份有限公司 | A kind of angle valve |
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