CN207245461U - Door closer - Google Patents
Door closer Download PDFInfo
- Publication number
- CN207245461U CN207245461U CN201721111981.2U CN201721111981U CN207245461U CN 207245461 U CN207245461 U CN 207245461U CN 201721111981 U CN201721111981 U CN 201721111981U CN 207245461 U CN207245461 U CN 207245461U
- Authority
- CN
- China
- Prior art keywords
- spring
- housing
- force adjustment
- door closer
- door
- 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.)
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Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 239000003292 glue Substances 0.000 claims description 12
- 238000011084 recovery Methods 0.000 claims description 5
- 238000005381 potential energy Methods 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000011176 pooling Methods 0.000 description 1
Landscapes
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The utility model provides a kind of door closer with sectionalized casing, it is related to door closer technical field, solves integrated casing existing in the prior art, it is impossible to cause to waste the technical problem of case material, increase difficulty of processing according to the needing segment design of internal structure.The door closer, including housing, spring strut, connecting rod, transmission device and spring, the transmission device are arranged on the enclosure interior, and the spring is arranged in the spring strut；The housing is connected with the spring strut, and the housing is internally formed the sealing space connected with the spring strut；Buffer fluid is filled with the sealing space, the shell wall of the housing is internally provided with the first passage of the buffer fluid flowing, and the first passage is connected with the sealing space.The utility model is used for realization automatic door-closing, and is buffered during enabling.
Description
Technical field
Door closer is the utility model is related to, more particularly, to a kind of door closer with sectionalized casing.
Background technology
Door closer is a hydraulic press for a upper spring-like, when door unlatching after can by compression after discharge, by door from
It is dynamic to shut, play the role of as single or double acting door, it is ensured that after door is opened, accurately, timely close and arrive initial position.Door closer
Operation principle is：When opening the door, door body drives connecting rod action, and rotates travelling gear, and drive rack plunger moves to the right.
Spring is compressed during plunger moves to right, and the buffer fluid in right chamber is also pressurized.Unidirectional valve sphere on the left of plunger exists
Opened under the action of oil pressure, the buffer fluid in right chamber is flowed in left chamber through check valve.After the completion of door opening process, due to spring
Compressed in opening process, the elastic potential energy put aside is released, and plunger is pushed away toward left side, with nutating gear and closes door
Device link rotatable, makes a closing.
The basic building block of door closer has supporting guide part, travelling gear, resetting spring, check valve, rack plunger, throttle valve
Core, housing, the buffer fluid of connecting rod and filling inside housings.Housing and connecting rod play fixed door closer and connection door leaf and
The effect of doorframe, usually supports guide part, travelling gear, resetting spring, check valve, rack plunger and throttling valve core and is respectively provided with
In the cavity of housing, the cavity of usual housing wall inside and housing needs to form the flow circuits of buffer fluid, housing
Structure is not the simple structure of single wall, thus process door closer housing relative to the simple housing of single wall for process equipment
It is more with the requirement of material, therefore difficulty of processing and cost all highers.But the buffer fluid for needing to set inside housing wall returns
Road is typically not required through whole housing, so if list is made in the section in the housing that need not set buffer fluid circuit
Wall construction, by increasing capacitance it is possible to increase process the difficulty of housing and reduce cost.
Utility model content
The purpose of this utility model is to provide a kind of door closer with sectionalized casing, to solve to deposit in the prior art
Integrated casing, it is impossible to caused to waste case material, increase difficulty of processing according to the needing segment design of internal structure
Technical problem.
To achieve the above object, the utility model provides following technical scheme：A kind of door closer, including housing, spring
Cylinder, connecting rod, transmission device and spring, the transmission device are arranged on the enclosure interior, and the spring is arranged on the bullet
In spring cylinder；Power transmission shaft of the housing equipped with the transmission device extends to the opening of the hull outside, the company
One end of bar and the power transmission axis connection of the transmission device；One of both other end of the connecting rod and the housing
It is fixed on door, both are wherein another to be fixed on doorframe；
The housing is connected with the spring strut, and the housing is internally formed the sealing sky connected with the spring strut
Between；It is filled with buffer fluid in the sealing space, the shell wall of the housing is internally provided with the connected with the sealing space
One passage.
Preferably, the spring strut is cylindrical shape, and the housing is detachably connected with the spring strut by screw thread.
Preferably, the position on the spring strut close to the screw tip is equipped with taper sealing face and storage glue groove successively,
The excessive glue smeared at the screw thread that the housing is connected with the spring strut can be spilled in the storage glue groove.
Preferably, the transmission device includes tooth cylinder, the length direction of the tooth cylinder and the spring with the housing
Length direction it is parallel, and the tooth cylinder is abutted with the spring, and the side face of the power transmission shaft is equipped with teeth portion, the tooth
The side of cylinder is equipped with the rack band engaged with the teeth portion, and the power transmission shaft engages connection with the tooth cylinder；When door is beaten
When opening, the connecting rod drives the tooth cylinder to be moved towards the direction of the spring by driving the power transmission shaft to rotate, and
Extrude the spring；When the external force of enabling disappears, the elastic potential energy of spring savings is by promoting the tooth cylinder to remote
The direction of the spring is mobile and drives the power transmission shaft to rotate, and the power transmission shaft drives door to close by the connecting rod
Close.
Preferably, the tooth cylinder is internally provided with the second channel of buffer fluid circulation, and the both ends of the tooth cylinder are equipped with sealing
The sealing space is divided into two parts by band, the band.
Preferably, the second channel of buffer fluid circulation is additionally provided with inside the tooth cylinder, the both ends of the second channel are set
There are the check valve and strainer for controlling the second channel conducting area.
Preferably, the first passage is equipped with the speed governing for controlling the first passage to connect area with the sealing space
Valve and EGR Delay Valve, the speed governing valve are equipped with the speed governing valve oil-recovery tank of triangle.
Preferably, the spring includes inner spring and outer spring, and the outside diameter of the inner spring is less than the interior of the outer spring
Footpath, and the inner spring is arranged on inside the outer spring.
Preferably, the spring strut is internally provided with force adjustment screw rod and force adjustment piece, and one end of the force adjustment screw rod is fixed on institute
The one end of spring strut away from the housing is stated, the force adjustment on piece is equipped with screw hole, and the force adjustment piece can pass through the screw hole
Inside it is placed on the force adjustment screw rod, and can be moved on the length direction of the force adjustment screw rod；The spring is located at the spring
Between piece and the tooth cylinder.
Preferably, the spring strut inner wall is equipped with force adjustment groove, and the force adjustment piece is located in the force adjustment groove, and can be in institute
State and moved in the length range of force adjustment groove.
Brief description of the drawings
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, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is the structure diagram of door closer described in the utility model；
Fig. 2 is the internal structure schematic diagram of door closer described in the utility model；
Fig. 3 is the structure diagram of the spring strut of door closer described in the utility model；
Fig. 4 is the shell structure schematic diagram of door closer described in the utility model；
Fig. 5 is the sectional drawing in A-A faces in Fig. 4；
Fig. 6 is the sectional drawing in B-B faces in Fig. 4；
Fig. 7 is the sectional drawing in C-C faces in Fig. 5；
Fig. 8 is the sectional drawing in D-D faces in Fig. 5；
Fig. 9 is the sectional drawing in E-E faces in Fig. 5；
Figure 10 is the sectional drawing in G-G faces in Fig. 5；
Figure 11 is the tooth cylinder and the structure diagram of power transmission shaft intermeshing state of door closer described in the utility model.
Embodiment
To make the purpose of this utility model, technical solution and advantage clearer, below by the technology of the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Obtained all other embodiment is put, belongs to the scope that the utility model is protected.
As shown in figs. 1-11, the utility model provides a kind of door closer, including housing 1, spring strut 2, connecting rod 4, transmission
Device and spring, the transmission device are arranged on inside the housing 1, and the spring is arranged in the spring strut 2；It is described
Power transmission shaft 3 of the housing 1 equipped with the transmission device extends to the opening outside the housing 1, one end of the connecting rod 4
It is connected with the power transmission shaft 3 of the transmission device；One of both other ends and the housing 1 of the connecting rod 4 are fixed
On door, both are wherein another to be fixed on doorframe；
The housing 1 is connected with the spring strut 2, and the housing 1 is internally formed the sealing connected with the spring strut 2
Space；Buffer fluid is filled with the sealing space, the shell wall of the housing 1 is internally provided with what is connected with the sealing space
First passage 30.
As optional embodiment, the rapidoprint of the housing 1 is cast copper, cast aluminium or cast steel.
As optional embodiment, the connecting rod 4 is equipped with mounting base 40, and the mounting base 40 is installed equipped with connecting rod
Hole 37, the housing are equipped with shell bores 36, and the connecting rod mounting hole 37 in shell bores 36 with being equipped with screw, institute
Housing 1 and the connecting rod 4 is stated to be fixedly connected with doorframe OR gate by screw respectively.
As optional embodiment, the spring strut 2 is cylindrical shape, and the housing 1 passes through spiral shell with the spring strut 2
Line 25 is detachably connected.
As optional embodiment, the position on the spring strut 2 close to 25 end of screw thread is equipped with taper successively
Sealing surface 27 and storage glue groove 26, the excessive glue smeared at the screw thread 25 that the housing 1 is connected with the spring strut 2 can overflow
Go out to the storage glue groove 26.Spring strut loosening, oil leak in order to prevent, are smeared necessarily when spring strut assembles at screw thread
The glue of amount, the setting of storage glue groove can prevent glue from overflowing the gap between housing and spring strut.
As optional embodiment, the transmission device includes tooth cylinder 11, the length of the tooth cylinder 11 and the spring
Direction is parallel with the length direction of the housing 1, and the tooth cylinder 11 is abutted with the spring, the power transmission shaft 3
Side face is equipped with teeth portion 14, and the side of the tooth cylinder 11 is equipped with the rack band 111 engaged with the teeth portion 14, and the power passes
Defeated axis 3 engages connection with the tooth cylinder 11；When the door is open, the connecting rod 4 is driven by driving the power transmission shaft 3 to rotate
The tooth cylinder 11 is moved towards the direction of the spring, and extrudes the spring；When the external force of enabling disappears, the spring product
The elastic potential energy of storage is by promoting the tooth cylinder 11 mobile to the direction away from the spring and driving the power transmission shaft 3
Rotate, the power transmission shaft 3 drives door to close by the connecting rod 4.
As optional embodiment, power transmission shaft 3 is connected by bearing block 12 with the housing 1.
As optional embodiment, the both ends of the tooth cylinder 11 are equipped with band 17, and the band 17 will be described close
Envelope space is divided into two parts.
As optional embodiment, the second channel 16 of buffer fluid circulation is additionally provided with inside the tooth cylinder 11, it is described
The both ends of second channel 16 are equipped with the check valve 19 and strainer 18 for controlling the second channel 16 to turn on area.
As optional embodiment, the check valve 19 and strainer 18 are arranged in the band 17.
As optional embodiment, the outside of band 17 is equipped with tooth cylinder oil-recovery tank 171.
As optional embodiment, buffer fluid is hydraulic oil.
As optional embodiment, the first passage 30, which is equipped with, controls the first passage 30 and the sealing empty
Between connect area speed governing valve and EGR Delay Valve, the speed governing valve be equipped with triangle speed governing valve oil-recovery tank.
As optional embodiment, housing, which is equipped with, connects the first passage 30 and the first speed governing valve of sealing space
Mounting hole 31, the second speed governing valve mounting hole 33, the 3rd speed governing valve mounting hole 34, the 4th speed governing valve mounting hole 35 and EGR Delay Valve peace
Fill hole 32；The first speed governing valve mounting hole 31, the second speed governing valve mounting hole 33, the 3rd speed governing valve mounting hole 34, the 4th speed governing
The first speed governing valve 41, the second speed governing valve 43, the 3rd speed governing valve are separately installed with valve mounting hole 35 and EGR Delay Valve mounting hole 32
44th, the 4th speed governing valve 45 and EGR Delay Valve 42.
As optional embodiment, the power transmission shaft 3 is tooth shaft, passes through tooth shaft and the tooth-strip part 111 of tooth cylinder 11
Engaged transmission realizes the switching process of door, and when the door of door closer load is heavier, the intensity of spring is also bigger, closes the door opening the door
During tooth shaft will bear all load forces.The teeth portion 14 of tooth tooth shaft is broken during the work time in order to prevent.Producing
Process medium tooth shaft takes the working strength that special processing technology ensure that tooth shaft tooth-strip part 111.At the same time door is closed in order to improve
The work efficiency of device, the diameter of axle position of tooth shaft and bearing fit take accurate cylindrical grinder processing.
The housing 1 is internally formed with the spring strut 2 by the band and check valve at tooth cylinder both ends connect it is close
Envelope space is divided into two parts, and when tooth cylinder lateral movement to the right, the steel ball on right side is pushed to the bottom of check valve body by hydraulic oil, at this time
Hydraulic oil can not can only flow through left side sealing by check valve by the first passage 30 and tooth cylinder oil-recovery tank 171 of enclosure interior
Band, and the steel ball in left side pushes top to by hydraulic oil, hydraulic oil can be flowed to smoothly separately by the second channel 16 on tooth cylinder
One end.Otherwise set up.Pooling feature when such design structure realizes enabling prevents door from bumping against barrier behind the door, closes
Delay function during door extends lockup, prevents door from clipping to the controllability that snail also achieves door closing speed at the same time
Door closing speed and padlock speed are controlled by speed governing valve
As optional embodiment, the spring includes inner spring 6 and outer spring 7, and the outside diameter of the inner spring 6 is small
In the internal diameter of the outer spring 7, and the inner spring 6 is arranged on inside the outer spring 7.
As optional embodiment, the spring strut 2 is internally provided with force adjustment screw rod 22 and force adjustment piece, the force adjustment screw rod
22 one end is fixed on the one end of the spring strut 2 away from the housing 1, and the force adjustment piece 23 is equipped with screw hole, the tune
Power piece 23 can be by being placed on the force adjustment screw rod 22 in the screw hole, and can be on the length direction of the force adjustment screw rod 22
It is mobile；The spring is between the spring leaf and the tooth cylinder 11.
As optional embodiment, the force adjustment piece 23 is set in after the force adjustment screw rod 22, by the force adjustment spiral shell
The free end of bar 22 pounds flat into the limiting section 28 for preventing the force adjustment piece 23 from coming off.
As optional embodiment, 2 inner wall of spring strut is equipped with force adjustment groove 24, and the force adjustment piece 23 is located at institute
State in force adjustment groove 24, and can be moved in the length range of the force adjustment groove 24.
As optional embodiment, the one end of the spring strut 2 away from the housing 1 is equipped with the second end cap 21, described
Force adjustment screw rod 22 is fixed on second end cap 21.
As optional embodiment, second end cap 21 is equipped with force adjustment screw rod mounting hole, the force adjustment screw rod 22
It is fixed on the force adjustment screw rod mounting hole.In order to adjust the dynamics of door closer, bullet is adjusted by varying the position of force adjustment piece 23
The impulse stroke of spring carrys out the size of control dynamics.Force adjustment groove 24 on spring strut 2 is that force adjustment piece 23 follows force adjustment spiral shell in order to prevent
Bar 22 rotates together, so as to lose force adjustment effect.
As optional embodiment, the door closer all parts junction is equipped with sealing ring 8 or gasket 13.
As optional embodiment, the one end of the housing 1 away from the spring strut 2 is equipped with housing seal lid 5.
The above, is only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain that profit requires.
Claims (10)
1. a kind of door closer, it is characterised in that including housing (1), spring strut (2), connecting rod (4), transmission device and spring, institute
State transmission device and be arranged on the housing (1) inside, the spring is arranged in the spring strut (2)；Set on the housing (1)
The power transmission shaft (3) for having the transmission device extends to the exterior opening of the housing (1), one end of the connecting rod (4) with
Power transmission shaft (3) connection of the transmission device；One of both other end and the housing (1) of the connecting rod (4)
It is fixed on door, both are wherein another to be fixed on doorframe；
The housing (1) is connected with the spring strut (2), and the housing (1) is internally formed what is connected with the spring strut (2)
Sealing space；Buffer fluid is filled with the sealing space, the shell wall of the housing (1) is internally provided with and the sealing space
The first passage (30) of connection.
2. door closer according to claim 1, it is characterised in that the spring strut (2) is cylindrical shape, the housing (1)
It is detachably connected with the spring strut (2) by screw thread (25).
3. door closer according to claim 2, it is characterised in that close to the screw thread (25) end on the spring strut (2)
The position at end is equipped with taper sealing face (27) and storage glue groove (26), the spiral shell that the housing (1) is connected with the spring strut (2) successively
The excessive glue that line (25) place is smeared can be spilled in the storage glue groove (26).
4. door closer according to claim 1, it is characterised in that the transmission device includes tooth cylinder (11), the tooth cylinder
(11) it is parallel with the length direction of the housing (1) with the length direction of the spring, and the tooth cylinder (11) and the bullet
Spring abuts, and the side face of the power transmission shaft (3) is equipped with teeth portion (14), and the side of the tooth cylinder (11) is equipped with and the tooth
The rack band (111) of portion (14) engagement, the power transmission shaft (3) engage connection with the tooth cylinder (11)；When the door is open, institute
State connecting rod (4) drives the tooth cylinder (11) to be moved towards the direction of the spring by driving the power transmission shaft (3) to rotate,
And extrude the spring；When the external force of enabling disappears, the elastic potential energy of the spring savings is by promoting the tooth cylinder (11)
To the direction movement away from the spring and the power transmission shaft (3) is driven to rotate, the power transmission shaft (3) is by described
Connecting rod (4) drives door to close.
5. door closer according to claim 4, it is characterised in that the both ends of the tooth cylinder (11) are equipped with band (17),
The sealing space is divided into two parts by the band (17).
6. door closer according to claim 5, it is characterised in that buffer fluid circulation is additionally provided with inside the tooth cylinder (11)
Second channel (16), the both ends of the second channel (16) are equipped with the check valve for controlling second channel (16) the conducting area
(19) and strainer (18).
7. door closer according to claim 6, it is characterised in that the first passage (30) is equipped with control described first
Passage (30) connects the speed governing valve and EGR Delay Valve of area with the sealing space, and the speed governing valve is equipped with the speed governing valve of triangle
Oil-recovery tank.
8. door closer according to claim 7, it is characterised in that the spring includes inner spring (6) and outer spring (7),
The outside diameter of the inner spring (6) is less than the internal diameter of the outer spring (7), and the inner spring (6) is arranged on the outer spring (7)
It is internal.
9. door closer according to claim 8, it is characterised in that the spring strut (2) is internally provided with force adjustment screw rod (22)
With force adjustment piece, one end of the force adjustment screw rod (22) is fixed on the one end of the spring strut (2) away from the housing (1), described
Force adjustment piece (23) is equipped with screw hole, and the force adjustment piece (23) can be by being placed on the force adjustment screw rod (22) in the screw hole
On, and can be moved on the length direction of the force adjustment screw rod (22)；The spring is located at the spring leaf and the tooth cylinder
(11) between.
10. door closer according to claim 9, it is characterised in that spring strut (2) inner wall is equipped with force adjustment groove
(24), the force adjustment piece (23) is located in the force adjustment groove (24), and can be moved in the length range of the force adjustment groove (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111981.2U CN207245461U (en) | 2017-08-31 | 2017-08-31 | Door closer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721111981.2U CN207245461U (en) | 2017-08-31 | 2017-08-31 | Door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207245461U true CN207245461U (en) | 2018-04-17 |
Family
ID=61884884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721111981.2U Active CN207245461U (en) | 2017-08-31 | 2017-08-31 | Door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207245461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109190415A (en) * | 2018-07-05 | 2019-01-11 | 天津众达智腾科技有限公司 | Data destroying triggering method and its device based on physical protection |
-
2017
- 2017-08-31 CN CN201721111981.2U patent/CN207245461U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109190415A (en) * | 2018-07-05 | 2019-01-11 | 天津众达智腾科技有限公司 | Data destroying triggering method and its device based on physical protection |
| CN109190415B (en) * | 2018-07-05 | 2021-08-27 | 天津众达智腾科技有限公司 | Data destruction triggering method and device based on physical protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190424 Address after: 325800 No. 350-1, Guilan Road, Qiaodun Town, Cangnan County, Wenzhou City, Zhejiang Province Patentee after: ZHEJIANG DUNHAOSI HARDWARE INDUSTRIAL CO., LTD. Address before: 325000 Room 301, Unit 1, Two Mingzhu Gardens, Lingxi Town, Cangnan County, Wenzhou City, Zhejiang Province Patentee before: Huang Fangben |