CN208010162U - A kind of concealed fire-proof door closer - Google Patents
A kind of concealed fire-proof door closer Download PDFInfo
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- CN208010162U CN208010162U CN201820161938.5U CN201820161938U CN208010162U CN 208010162 U CN208010162 U CN 208010162U CN 201820161938 U CN201820161938 U CN 201820161938U CN 208010162 U CN208010162 U CN 208010162U
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- oil pocket
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Abstract
The utility model discloses a kind of concealed fire-proof door closers, including shell, pivoted arm and buffer unit, buffer unit includes spring, piston and shaft, shaft is connect with pivoted arm, spring and piston are set in shell, shaft coordinates with piston, shaft can opposing pistons rotate 0~170 ° clockwise and anticlockwise, the first oil pocket and the second oil pocket are equipped in shell, first oil pocket and the second oil pocket are located at the both sides of buffer unit, spring is located in the second oil pocket, one end of spring is abutted against with piston, piston is equipped with cavity, first oil pocket and the second oil pocket pass through oil circuit, piston is connected to, shaft is equipped with sector, piston turns tooth with shaft equipped with what is be meshed.By the sector in shaft, the opening and closing angle of door can be effectively controlled within the scope of 0~170 °, meets different requirements.Meanwhile the fire behavior being effectively isolated, reach good flameproof effect, it is simple in structure, it window close without external force window can be realized is automatically closed.
Description
Technical field
The utility model belongs to a kind of fire-proof apparatus, more particularly, to a kind of concealed fire-proof door closer.
Background technology
Door closer is widely used in architectural engineering, and the fire protecting performance of door closer is related to the life and property peace of the people
Entirely, therefore, the structure design and fire protecting performance of door closer are most important.There is use the longevity for current market sales of door closer
Order that short, fire protecting performance is poor, there are security risks；Door closer majority also cannot meet different uses using at the uniform velocity closing
It is required that.Meanwhile existing door closer due to component it is various, complicated, cost is higher.Existing part door closer is closing door
In the process, Partial angle may be implemented to close at a slow speed, but this kind of door closer generally uses more complex structure, machining accuracy
Height, to increase production cost.
Utility model content
The purpose of this utility model is to provide a kind of concealed fire-proof door closers, in capable of solving the above problems at least
One.
One side according to the present utility model provides a kind of concealed fire-proof door closer, including shell, pivoted arm ease up
Flushing device, buffer unit include spring, piston and shaft, and shaft is connect with pivoted arm, and spring and piston are set in shell, shaft
Coordinate with piston, shaft can opposing pistons rotate 0~170 ° clockwise and anticlockwise, the first oil pocket and second are equipped in shell
Oil pocket, the first oil pocket and the second oil pocket are located at the both sides of buffer unit, and spring is located in the second oil pocket, one end of spring with
Piston abuts against, and piston is equipped with cavity, the first oil pocket and the second oil pocket and is connected to by oil circuit, piston, and shaft is equipped with sector,
Piston turns tooth with shaft equipped with what is be meshed.
The utility model has the beneficial effects that：By setting there are two oil pocket, and two oil pockets are by oil communication, therefore,
In windowing, external force is acted on by pivoted arm in shaft, the hydraulic oil in the second oil pocket is pressed into the first oil pocket, together
When spring compressed；After external force cancels, springback pushes piston movement, so that piston turns tooth by what is be meshed
Shaft rotation is driven, to realize the closing of window, meanwhile, hydraulic oil is pressed into the second oil pocket through the first oil pocket, and window is realized
It is automatically closed, the fire behavior to be effectively isolated reaches good flameproof effect, and simple in structure, is closed to window without external force
It closes and being automatically closed for window can be realized.Meanwhile by the sector in shaft, it can effectively control the opening and closing angle of door
Within the scope of 0~170 °, meet different requirements.
In some embodiments, the cavity both sides inner wall of piston is equipped with perpendicular tooth, when shaft is rotated clockwise to 170 °
When, the sector in shaft is meshed with the perpendicular tooth of wherein side；
When shaft rotates counterclockwise to 170 °, the sector in shaft is meshed with the perpendicular tooth of the other side.Pass through as a result,
Sector and the cooperation that tooth is erected on piston, can control switch gate angle within the scope of 0~170 ° in shaft, simple in structure.
In some embodiments, oil circuit be included in the first oil outlet, the second oil outlet that case inside wall is arranged in order,
Third oil outlet and the 4th oil outlet, the first oil outlet are located at side where spring, and one end of piston is equipped with protrusion, protrusion and first
Oil outlet, the second oil outlet, third oil outlet and the 4th oil outlet are corresponding, and the first oil outlet is at a distance from the second oil outlet etc.
In length raised on piston.As a result, by the setting of each oil outlet, and the length of protrusion, can control when piston moves
When to corresponding position, the corresponding adjusting of movement speed, consequently facilitating the velocity of rotation of control shaft, realizes to closing speed
Effective control is realized, speed, which can be realized, by hydraulic pressure is adjusted.
In some embodiments, one end of piston is equipped with check valve, and internal piston passes through check valve and the first oil pocket, the
Two oil pockets are connected to.It is equipped with check valve as a result, can effectively control the flow direction of hydraulic oil in piston.
In some embodiments, at closing time, piston is gradually moved to far from spring side, the hydraulic oil in the first oil pocket
The second oil pocket is entered through the 4th oil outlet and the first oil outlet；With the increase of shutdown angle, the hydraulic oil in the first oil pocket
Finally the second oil pocket is entered after the 4th oil outlet flow to the first oil outlet and the second oil outlet；
When enabling, the hydraulic oil in the second oil pocket enters the first oil pocket by check valve, and, the liquid in the second oil pocket
Pressure oil enters the first oil pocket after the first oil outlet, the second oil outlet reach the 4th oil outlet；With the increasing of open angle
Greatly, the hydraulic oil in the second oil pocket is fuel-displaced by the 4th oil outlet, third oil outlet and second simultaneously after the first oil outlet
Mouth enters the first oil pocket.Thus, it is possible to realize that the quick unlatching of window and slower speed are closed, the concealed fire prevention ensure that
The service life of door closer, and it is easy to use.
In some embodiments, concealed fire-proof door closer further includes speed governing valve, the first oil outlet and the 4th oil outlet
Place is equipped with speed governing valve.It is equipped with speed governing valve as a result, can conveniently adjust the Extraction rate of two oil outlets, it is convenient to closing window speed
The adjusting of degree improves its applicability.
In some embodiments, concealed fire-proof door closer further includes mounting plate, and mounting plate is set to the top of shell, peace
Loading board is equipped with multiple mounting holes, and pivoted arm is located above mounting plate.It is equipped with mounting plate as a result, the peace of shell and forms can be facilitated
Dress, it is easy for installation.
In some embodiments, the side of the first oil pocket and the second oil pocket is equipped with end cap, and end cap is interlocked with shell.
It is equipped with end cap as a result, hydraulic oil can be effectively prevent to leak, ensure that the normal use of the concealed fire-proof door closer.
Description of the drawings
Fig. 1 is a kind of schematic cross-sectional view of concealed fire-proof door closer of the utility model；
Fig. 2 is the A-A schematic cross-sectional views of Fig. 1.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to Fig. 2：A kind of concealed fire-proof door closer, including shell 1, pivoted arm 2 and buffer unit 3, buffer unit
3 include spring 31, piston 32 and shaft 33, and shaft 33 is connect with pivoted arm 2, and spring 31 and piston 32 are set in shell 1, are turned
Axis 33 and piston 32 coordinate, shaft 33 can opposing pistons 32 rotate 0~170 ° clockwise and anticlockwise, equipped with the in shell 1
One oil pocket 4 and the second oil pocket 5, the first oil pocket 4 and the second oil pocket 5 are located at the both sides of buffer unit 3, and spring 32 is located at the
In two oil pockets 5, one end and the piston 32 of spring 31 abut against, and piston 32 is equipped with cavity, and the first oil pocket 4 and the second oil pocket 5 pass through
Oil circuit 6, piston 32 are connected to, and shaft 33 is equipped with sector 331, and piston 32 turns tooth with shaft 33 equipped with what is be meshed.
Wherein, the material of shell 1 is metal, plays fireproofing function to a certain extent；The concealed fire-proof door closer makes
Used time, shell 1 is mounted on above doorframe, pivoted arm 2 is connect with door leaf so that when door leaf is turned on and off, can drive pivoted arm 2
Rotation, pivoted arm 2 drive shaft 33 to rotate again.
The cavity both sides inner wall of piston 32 is equipped with perpendicular tooth 321, when shaft 33 is rotated clockwise to 170 °, in shaft 33
Sector 331 be meshed with the perpendicular tooth 321 of wherein side；
When shaft 33 rotates counterclockwise to 170 °, sector 331 and 321 phase of perpendicular tooth of the other side in shaft 33 are nibbled
It closes.
When door leaf is opened inwardly or outward to 170 °, the perpendicular tooth 321 of sector 331 and corresponding side in shaft 33
Edge matches so that sector 331 can not be further continued for rotating, to effectively control the opening angle of door leaf.
Oil circuit 6 is included in the first oil outlet 61, the second oil outlet 62, the third oil outlet that 1 madial wall of shell is arranged in order
63 and the 4th oil outlet 64, the first oil outlet 61 be located at 31 place side of spring, one end of piston 32 is equipped with protrusion 322, protrusion
322 is corresponding with the first oil outlet 61, the second oil outlet 62, third oil outlet 63 and the 4th oil outlet 64, i.e., piston 32 is moving
During dynamic, the closure to the first oil outlet 61, the second oil outlet 62, third oil outlet 63 and the 4th oil outlet 64 may be implemented
Effect.First oil outlet 61 is equal to the length of protrusion 322 on piston 32 at a distance from the second oil outlet 62, thus, it is possible to realize
First oil outlet 61 can be connected to the hydraulic oil at the second oil outlet 62, third oil outlet 63 and the 4th oil outlet 64 simultaneously,
The flowing velocity for facilitating control hydraulic oil, to control the closing velocity of door.
One end of piston 32 is equipped with check valve 7, is connected by check valve 7 and the first oil pocket 4, the second oil pocket 5 inside piston 32
It is logical.
At closing time, piston 32 is gradually moved to far from 31 side of spring, and the hydraulic oil in the first oil pocket 4 is through the 4th oil outlet
64 and first oil outlet 61 enter the second oil pocket 5；With the increase of shutdown angle, the hydraulic oil in the first oil pocket 4 finally passes through
4th oil outlet 64 enters the second oil pocket 5 after flowing to the first oil outlet 61 and the second oil outlet 62；It is closed in door initial
Stage, the protrusion 322 of piston 32 are matched with the first oil outlet 61, and with the rebound of spring 31, spring 31 pushes piston 32
Mobile, piston 32 drives shaft 33 to rotate, while driving pivoted arm 2 that door is driven gradually to be closed.It is convex with the movement of piston 32
It plays 322 and gradually leaves the first oil outlet 61, so that the hydraulic oil in the first oil pocket 4 goes out through the 4th oil outlet 64 and first
Hydraulic fluid port 61 enters the second oil pocket 5.With the further rebound of spring 31, the second oil outlet 63 is blocked, is then beaten by protrusion 322
It opens；Then third oil outlet 63 is blocked, finally so that the hydraulic oil in the first oil pocket 4 is finally flow to through the 4th oil outlet 64
The second oil pocket 5 is entered after first oil outlet 61 and the second oil outlet 62.In the closing process of door, due to the first oil pocket 4 with
The connection of different number oil outlet in second oil pocket 5 realizes door from closing at a slow speed to realize the control to door closing speed
Door, fast speed close the door, finally arrive the process closed the door at a slow speed, can meet the requirement of door.
When enabling, the hydraulic oil in the second oil pocket 5 enters the first oil pocket 4 by check valve 7, and, in the second oil pocket 5
Hydraulic oil by the first oil outlet 61, the second oil outlet 62 reach the 4th oil outlet 64 after enter the first oil pocket 4；With
The increase of open angle, the hydraulic oil in the second oil pocket 5 is after the first oil outlet 61 simultaneously by the 4th oil outlet 64, third
Oil outlet 63 and the second oil outlet 62 enter the first oil pocket 4.I.e. for door in the initial conditions of unlatching, raised 322 is fuel-displaced by the 4th
Mouthfuls 64 and third oil outlet 63 block, when enabling, under external force, pivoted arm 2 drives shaft 33 to rotate, and shaft 33 drives
Piston 32 moves, to which spring 31 is gradually compressed.Hydraulic oil in second oil pocket 5 beats check valve 7 under oil pressure effect
It opens, the hydraulic oil in the second oil pocket 5 is entered by check valve 7 in the first oil pocket 4；Meanwhile on piston 32 protrusion 322 gradually from
Open the 4th oil outlet 64 so that the hydraulic oil in the second oil pocket 5 reaches the 4th by the first oil outlet 61, the second oil outlet 62
The first oil pocket 4 is entered after oil outlet 64.With the gradual movement of piston 32, the 4th oil outlet 64, third oil outlet 63 and
Two oil outlets 62 are opened, the hydraulic oil in the second oil pocket 5 after the first oil outlet 61 simultaneously by the 4th oil outlet 64,
Third oil outlet 63 and the second oil outlet 62 enter in the first oil pocket 4.Thus, it is possible to the quick unlatching of door be realized, convenient for fire
Quickly withdrawing when feelings occur, meets requirement.
Concealed fire-proof door closer further includes speed governing valve 8, and speed governing is equipped at the first oil outlet 61 and the 4th oil outlet 64
Valve 8.By speed governing valve 8, the amount of opening of the first oil outlet 61 and the 4th oil outlet 64 can be controlled, to facilitate control first
The velocity of liquid assets of hydraulic oil in oil pocket 4 and the second oil pocket 5, to facilitate door opening and closing speed adjusting, meet different
The use of occasion.
Concealed fire-proof door closer further includes mounting plate 9, and mounting plate 9 is set to the top of shell 1, and mounting plate 9 is equipped with multiple
Mounting hole 91, pivoted arm 2 are located at 9 top of mounting plate.Wherein, mounting plate 9 is metallic plate, plays fireproofing function, and mounting hole 91 is uniformly distributed
On mounting plate 9, mounting plate 9 can be bolted on shell 1.
The side of first oil pocket 4 and the second oil pocket 5 is equipped with end cap 10, and end cap 10 is interlocked with shell 1.In order to further
The leakage for preventing hydraulic oil in two oil pockets is equipped with sealing ring at end cap 10 and 1 fastening of shell.
The above are merely preferred embodiments of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the present invention, various modifications and improvements can be made, these belong to this
The protection domain of utility model.
Claims (8)
1. a kind of concealed fire-proof door closer, which is characterized in that described slow including shell (1), pivoted arm (2) and buffer unit (3)
Flushing device (3) includes spring (31), piston (32) and shaft (33), and the shaft (33) connect with pivoted arm (2), the spring
(31) it is set in shell (1) with piston (32), the shaft (33) coordinates with piston (32), and the shaft (33) can be opposite
Piston (32) rotates 0~170 ° clockwise and anticlockwise, and the first oil pocket (4) and the second oil pocket (5) are equipped in the shell (1),
First oil pocket (4) and the second oil pocket (5) are located at the both sides of buffer unit (3), and the spring (31) is located at the second oil
In chamber (5), one end and the piston (32) of the spring (31) abut against, and the piston (32) is equipped with cavity, first oil pocket
(4) it is connected to by oil circuit (6), piston (32) with the second oil pocket (5), the shaft (33) is equipped with sector (331), the work
Plug (32) turns tooth with shaft (33) equipped with what is be meshed.
2. concealed fire-proof door closer according to claim 1, which is characterized in that in the cavity both sides of the piston (32)
Wall is equipped with perpendicular tooth (321), when the shaft (33) is rotated clockwise to 170 °, sector (331) in shaft (33) with
The perpendicular tooth (321) of wherein side is meshed；
When the shaft (33) rotates counterclockwise to 170 °, perpendicular tooth (321) phase of sector (331) and the other side in shaft
Engagement.
3. concealed fire-proof door closer according to claim 2, which is characterized in that the oil circuit (6) is included in shell (1)
The first oil outlet (61), the second oil outlet (62), third oil outlet (63) and the 4th oil outlet (64) that madial wall is arranged in order,
First oil outlet (61) is located at side where spring (31), and one end of the piston (32) is equipped with raised (322), the protrusion
(322) corresponding with the first oil outlet (61), the second oil outlet (62), third oil outlet (63) and the 4th oil outlet (64), institute
State the length that the first oil outlet (61) is equal to (322) raised on piston (32) at a distance from the second oil outlet (62).
4. concealed fire-proof door closer according to claim 3, which is characterized in that one end of the piston (32) is equipped with single
To valve (7), it is connected to the first oil pocket (4), the second oil pocket (5) by check valve (7) inside the piston (32).
5. concealed fire-proof door closer according to claim 4, which is characterized in that at closing time, the piston (32) is gradual
It is moved to far from spring (31) side, the hydraulic oil in first oil pocket (4) is through the 4th oil outlet (64) and the first oil outlet
(61) the second oil pocket (5) is entered；With the increase of shutdown angle, the hydraulic oil in first oil pocket (4) is finally through the 4th
Oil outlet (64) enters the second oil pocket (5) after flowing to the first oil outlet (61) and the second oil outlet (62)；
When enabling, the hydraulic oil in second oil pocket (5) enters the first oil pocket (4) by check valve (7), and, second
Hydraulic oil in oil pocket (5) enters after the first oil outlet (61), the second oil outlet (62) reach the 4th oil outlet (64)
First oil pocket (4)；With the increase of open angle, the hydraulic oil in second oil pocket (5) is after the first oil outlet (61)
Simultaneously the first oil pocket (4) is entered by the 4th oil outlet (64), third oil outlet (63) and the second oil outlet (62).
6. according to the concealed fire-proof door closer of claim 3~4 any one of them, which is characterized in that further include speed governing valve
(8), it is equipped with speed governing valve (8) at first oil outlet (61) and the 4th oil outlet (64).
7. concealed fire-proof door closer according to claim 1, which is characterized in that further include mounting plate (9), the installation
Plate (9) is set to the top of shell (1), and the mounting plate (9) is equipped with multiple mounting holes (91), and the pivoted arm (2) is located at mounting plate
(9) top.
8. according to the concealed fire-proof door closer of Claims 1 to 5 any one of them, which is characterized in that first oil pocket (4)
It is equipped with end cap (10) with the side of the second oil pocket (5), the end cap (10) is interlocked with shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820161938.5U CN208010162U (en) | 2018-01-30 | 2018-01-30 | A kind of concealed fire-proof door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820161938.5U CN208010162U (en) | 2018-01-30 | 2018-01-30 | A kind of concealed fire-proof door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010162U true CN208010162U (en) | 2018-10-26 |
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ID=63884796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820161938.5U Active CN208010162U (en) | 2018-01-30 | 2018-01-30 | A kind of concealed fire-proof door closer |
Country Status (1)
| Country | Link |
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| CN (1) | CN208010162U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118994A (en) * | 2018-01-30 | 2018-06-05 | 肇庆市裕兴门控有限公司 | A kind of concealed fire-proof door closer |
-
2018
- 2018-01-30 CN CN201820161938.5U patent/CN208010162U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108118994A (en) * | 2018-01-30 | 2018-06-05 | 肇庆市裕兴门控有限公司 | A kind of concealed fire-proof door closer |
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