CN204252715U - Door closer - Google Patents

Door closer Download PDF

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Publication number
CN204252715U
CN204252715U CN201420569179.8U CN201420569179U CN204252715U CN 204252715 U CN204252715 U CN 204252715U CN 201420569179 U CN201420569179 U CN 201420569179U CN 204252715 U CN204252715 U CN 204252715U
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CN
China
Prior art keywords
door closer
hole
piston
adjustment
host cavity
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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.)
Expired - Fee Related
Application number
CN201420569179.8U
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Chinese (zh)
Inventor
周晓明
张冬林
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Individual
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Individual
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Filing date
Publication date
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Priority to CN201420569179.8U priority Critical patent/CN204252715U/en
Priority to JP2015052284A priority patent/JP2015180799A/en
Priority to AU2015201378A priority patent/AU2015201378A1/en
Priority to KR1020150036863A priority patent/KR20150108782A/en
Application granted granted Critical
Publication of CN204252715U publication Critical patent/CN204252715U/en
Priority to HK15107534.1A priority patent/HK1204844A2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of door closer, comprise door closer body, piston, elastic component, dynamics adjusting part, end cap and tail-hood, door closer body offers host cavity and the first accepting hole, host cavity both ends open, first accepting hole is communicated with host cavity, piston and elastic component are contained in host cavity, one end of elastic component abuts with piston, dynamics adjusting part comprises adjusting nut, helical gear, adjustment axle and force-regulating rod, adjusting nut, helical gear and adjustment axle are all contained in host cavity, one end of adjusting nut abuts with elastic component one end away from piston, helical gear abuts with adjusting nut one end away from elastic component, one end of adjustment axle wears helical gear and adjusting nut, one end of force-regulating rod wears the first accepting hole and abuts with helical gear, the other end stretches out door closer body through the first accepting hole, end cap and tail-hood seal two openends of host cavity respectively, piston abuts with tail-hood away from one end of elastic component, the other end of adjustment axle abuts with end cap.The effort to close of this door closer is adjustable.

Description

Door closer
Technical field
The utility model relates to a kind of door closer.
Background technology
At present, the door closer (being commonly called as floor spring) that glass door generally uses needs pre-buried cement box, increases cost of labor and affects programming.The door closer improved is piston type door closer, and this piston type door closer is compared with floor spring, without the need to pre-buried cement box, easy to use.
But this piston type door closer only has a fixing effort to close, and effort to close is non-adjustable, the door closer of same model can not be suitable for the glass door of different size, makes troubles to client's type selecting.
Utility model content
Based on this, be necessary to provide a kind of effort to close adjustable door closer.
A kind of door closer, comprising:
Door closer body, offers host cavity and the first accepting hole, described host cavity both ends open, and described first accepting hole is communicated with described host cavity;
Piston, is contained in described host cavity;
Elastic component, is contained in described host cavity, and one end of described elastic component abuts with described piston;
Dynamics adjusting part, comprise adjusting nut, helical gear, adjustment axle and force-regulating rod, described adjusting nut, helical gear and adjustment axle are all contained in described host cavity, one end of described adjusting nut abuts with described elastic component one end away from described piston, described helical gear abuts with described adjusting nut one end away from described elastic component, one end of described adjustment axle wears described helical gear and described adjusting nut, one end of described force-regulating rod wears described first accepting hole and abuts with described helical gear, and the other end stretches out described door closer body through described first accepting hole;
End cap and tail-hood, described end cap and tail-hood seal two openends of described host cavity respectively, and described piston abuts with described tail-hood away from one end of described elastic component, and the other end of described adjustment axle abuts with described end cap.
Wherein in an embodiment, described door closer also comprises camshaft and roll wheel assembly, and described door closer body also offers the second accepting hole, the middle part of described piston offers the first through hole, second through hole and third through-hole, described first through hole is communicated with the second through hole, one end of described roll wheel assembly is contained in described first through hole, the other end is contained in described second through hole, described camshaft wears described third through-hole, and described door closer body is stretched out through described second accepting hole in one end of described camshaft, the middle part of described roll wheel assembly also abuts with described camshaft.
Wherein in an embodiment, described door closer also comprises clutch shaft bearing and second bearing at the two ends being sheathed on described camshaft respectively, described clutch shaft bearing and the second bearing are deep groove ball bearing, and described deep groove ball bearing is the deep groove ball bearing that the height of inner ring is greater than the height of outer ring.
Wherein in an embodiment, described door closer also comprises safety valve, and one end of described piston offers first piston hole, and described safety valve to be contained in described first piston hole and to abut with described tail-hood.
Wherein in an embodiment, also comprise base assembly, described base assembly comprises mount pad, connecting axle and door, described mount pad is installed on external bracing thing, and described mount pad offers base accepting groove, described connecting axle is contained in described base accepting groove, and described door to be covered on described mount pad and to cover described connecting axle, the middle part of described connecting axle offers square shaft accepting hole, and one end that described camshaft stretches out described door closer body is contained in described square shaft accepting hole.
Wherein in an embodiment, described mount pad offers multiple first adjustment hole, multiple second adjustment hole and multiple 3rd adjustment hole, described multiple first adjustment hole and multiple appended claims are used for pushing against described connecting axle, to carry out left and right adjustment to the position of described connecting axle, described multiple second adjustment hole and multiple appended claims are to adjust up and down the position of described mount pad, described multiple 3rd adjustment holes and multiple appended claims are used for pushing against described connecting axle, to carry out front and back adjustment to the position of described connecting axle.
Wherein in an embodiment, described mount pad and door are circle.
Wherein in an embodiment, also comprise and be arranged at the pass family of power and influence on described door closer body and flow speed control valve, described door closer body offers oily passage, the first oil-through hole and the second oil-through hole, one end of the described pass family of power and influence and flow speed control valve is positioned at described door closer body interior, the other end stretches out described door closer body, described oily passage, the first oil-through hole and flow speed control valve form the first hydraulic oil path, and described oily passage, the second oil-through hole and the pass family of power and influence form the second hydraulic oil path.
Wherein in an embodiment, one end that the described pass family of power and influence and flow speed control valve stretch out described door closer body is vertical with the bearing of trend of described host cavity.
Wherein in an embodiment, also comprise the first enclosing cover and the second enclosing cover, described first enclosing cover and the second enclosing cover are removable installed in the relative both sides of described door closer body respectively.
Above-mentioned door closer is by arranging dynamics adjusting part, turn clockwise force-regulating rod time, force-regulating rod rotarily drive helical gear rotate, helical gear rotarily drive adjustment axle rotate, adjustment axle rotates thus drives adjusting nut to move and compression elastic piece, thus improves effort to close; When being rotated counterclockwise force-regulating rod, force-regulating rod rotarily drives helical gear and rotates, and helical gear rotarily drives adjustment axle and rotates, thus drives adjusting nut move and discharge elastic component, thus reduces effort to close, realizes effort to close adjustable.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the door closer of an embodiment;
The internal component decomposing schematic representation of the door closer body that Fig. 2 is the door closer shown in Fig. 1;
Fig. 3 is the sectional view along Fig. 1 III-III line;
Fig. 4 is the partial enlarged drawing of Fig. 3;
The mount pad of Fig. 5 for the door closer shown in Fig. 1 and the structural representation of connecting axle;
Fig. 6 is the using state figure of the door closer shown in Fig. 1;
The sectional view of another angle of the door closer body that Fig. 7 is the door closer shown in Fig. 1;
Fig. 8 ~ Fig. 9 is oil circuit schematic diagram at closing time.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail detailed description of the invention of the present utility model below in conjunction with accompanying drawing.Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar improvement without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public concrete enforcement.
Please refer to Fig. 1 and Fig. 2, the door closer 200 of an embodiment, comprises door closer body 10, piston 20, elastic component 30, dynamics adjusting part 40, end cap 50 and tail-hood 60.
Door closer body 10 is roughly cuboid.Door closer body 10 is extrusion profile, easy to prepare.
Door closer body 10 offers host cavity 12 and the first accepting hole 14.Host cavity 12 extends to the other end from one end of door closer body 10 along its length.Host cavity 12 both ends open, two sides laying respectively at door closer body 10 of two openends.First accepting hole 14 is opened on the sidewall of door closer body 10, and the first accepting hole 14 is communicated with host cavity 12, and the bearing of trend of the first accepting hole 14 is vertical with the bearing of trend of host cavity 12.One end of door closer body 10 offers the accepting groove 16 extending to the other end along its length from one end of door closer body 10.Host cavity 12 is relative with accepting groove 16, and be arranged in parallel.
Door closer body 10 also offers the second accepting hole (not shown).Second accepting hole is opened in one end relative with accepting groove 16 of door closer body 10.Second accepting hole is communicated with host cavity 12, and the bearing of trend of the second accepting hole is vertical with the bearing of trend of host cavity 12, and the bearing of trend of the second accepting hole is vertical with the bearing of trend of the first accepting hole 14.
See also Fig. 2 and 3, piston 20 is contained in host cavity 12.Piston 20 is roughly cylindrical.Piston 20 comprises first piston wall 21, second piston wall 22, first piston head 23 and the second piston head 24.The two ends of first piston wall 21 are connected with first piston head 23 and the second piston head 24 respectively, one end of second piston wall 22 is connected with the second piston head 24, the other end and first piston head 23 form the first gap (scheming not mark), and also form the second gap (figure does not mark) between first piston wall 21 and the second piston wall 22.
First piston wall 21 offers the first through hole (figure do not mark), the second piston wall 22 offers the second through hole (figure does not mark), the first through hole and the second through hole coaxial, and the first through hole is all just communicated with the second gap with the second through hole.First piston wall 21 also offers third through-hole, and third through-hole is relative with the first gap.
First piston head 23 offers on the piston head 24 of first piston hole 232, second and offer the second piston hole (not shown), first piston hole 232 all communicates with the first gap and the second gap.
Elastic component 30 is contained in host cavity 12, and one end of elastic component 30 abuts with the second piston head 24 of piston 20.In present embodiment, elastic component 30 is helical spring.Be appreciated that in other embodiments, elastic component 30 also can be the elastic body of other shapes.
Please refer to Fig. 2 and Fig. 4, dynamics adjusting part 40 comprises adjusting nut 41, helical gear 42, adjustment axle 43 and force-regulating rod 44.Adjusting nut 41, helical gear 42 and adjustment axle 43 are contained in host cavity 12.One end of adjusting nut 41 abuts with elastic component 30 one end away from piston 20, helical gear 42 abuts with adjusting nut 41 one end away from elastic component 30, one end of adjustment axle 43 wears helical gear 42 and adjusting nut 41, one end of force-regulating rod 44 wears the first accepting hole 14 and abuts with helical gear 42, the other end stretches out door closer body 10 through the first accepting hole 14, be positioned at the outside of door closer body 10, and with the sidewalls orthogonal of door closer body 10, namely vertical with the bearing of trend of host cavity 12.
End cap 50 and tail-hood 60 are arranged at the two ends of door closer body 10 respectively, seal two openends of host cavity 12 respectively.Preferably, in order to ensure sealing performance, also comprise the end cap seal circle 52 be sheathed on end cap 50 and the tail-hood sealing ring 62 be sheathed on tail-hood 60.
Abutting with tail-hood 60 away from elastic component 30 one end of piston 20, the other end of adjustment axle 43 abuts with end cap 50.
Above-mentioned door closer 200 is by arranging dynamics adjusting part 40, turn clockwise force-regulating rod 44 time, force-regulating rod 44 rotarily drives helical gear 42 and rotates, helical gear 42 rotarily drive adjustment axle 43 rotate, adjustment axle 43 rotate thus drives adjusting nut 41 to move and compression elastic piece 30 thus raising effort to close; When being rotated counterclockwise force-regulating rod 44, force-regulating rod 44 rotarily drives helical gear 42 and rotates, helical gear 42 rotarily drives adjustment axle 43 and rotates, adjustment axle 43 rotates thus drives adjusting nut 41 move and discharge elastic component 30 and reduce effort to close, thus it is adjustable to realize effort to close, make the door closer 200 of same model can be applicable to the glass door of different size, exempt client's type selecting worry.
Preferably, door closer 200 also comprises safety valve 70.Safety valve 70 to be contained in first piston hole 232 and to abut with tail-hood 60.
Please again consult Fig. 2, preferably, door closer 200 also comprises camshaft 80, clutch shaft bearing 90, second bearing 100 and roll wheel assembly 110.
Camshaft 80 comprises the first connecting axle 81, cam disc 82, second connecting axle 83 and the square shaft 84 that connect successively.Wherein, cam disc 82 is involute cam dish.Please refer to Fig. 3, camshaft 80 is partially housed in host cavity 12 and the square shaft 84 of camshaft 80 stretches out the outside of door closer body 10 from the second accepting hole of door closer body 10.Preferably, in order to ensure sealing, door closer 200 also comprises seal cover 120, and seal cover 120 is for sealing the second accepting hole.The middle part of seal cover 120 offers through hole, and it is outside that square shaft 84 stretches out seal cover 120 from through hole.Clutch shaft bearing 90 is sheathed on the first connecting axle 81, and the second bearing 100 is sheathed on the second connecting axle 83.In order to further enhanced leaktightness, the second bearing 100 and seal cover 120 are all arranged with sealing ring (figure does not mark).
Preferably, clutch shaft bearing 90 and the second bearing 100 are deep groove ball bearing, and this deep groove ball bearing refers to the deep groove ball bearing of the height of inner ring higher than the height of outer ring.And the inner ring of the deep groove ball bearing of routine is equal with the height of outer ring.
The general use needle bearing of existing door closer, because needle bearing can not carry axial force, pad can only be set by bottom and carry out support door heavily to the axial force that camshaft 80 brings, cause is plane contact, very large friction will be produced with pad in camshaft 80 rotation process, have a strong impact on the smooth and easy of switch gate, once pad wearing and tearing, will needle bearing be damaged, thus reduce product application life.Use the height of above-mentioned inner ring can carry axial force higher than the deep groove ball bearing of outer ring height, improve the friction because door heave hand comes, make switch gate more smooth and easy, improve the application life of product.
The middle part of roll wheel assembly 110 is arranged in the second gap of piston 20, and one end of roll wheel assembly 110 is contained in the first through hole, and the other end is contained in the second through hole.The outer wall at the middle part of roll wheel assembly 110 abuts with the outer wall of cam disc 82.
Please again consult Fig. 1, door closer 200 also comprises base assembly 130.Base assembly 130 comprises mount pad 131, connecting axle 132 and door 133.Further, base assembly 130 also comprises setscrew 134, hold-down screw 135, first set screw 136 and the second set screw 137.
Please refer to Fig. 5, mount pad 131 is circular.The middle part of mount pad 131 offers base accepting groove (not shown), and connecting axle 132 is contained in base accepting groove.Mount pad 131 offers the surrounding that four installing holes, 1311, four installing holes 1311 are positioned at base accepting groove.Mount pad 131 also offers four the first adjustment holes, 1312, four the second adjustment holes 1313 and two the 3rd adjustment holes 1314.Four the first adjustment holes 1312 and four the second adjustment holes 1313 are all positioned at the surrounding of base accepting groove, and two the 3rd adjustment holes 1314 lay respectively at the both sides of base accepting groove.
The middle part of connecting axle 132 offers square shaft accepting groove 1321.
The material of mount pad 131, connecting axle 132 and door 133 is 304 stainless steels.
See also Fig. 1 and Fig. 6, when door closer 200 is installed, first outside supporter as on floor bore four holes, then respectively four setscrews 134 are put into four holes, mount pad 131 is placed on floor, make four installing holes 1311 of mount pad 131 aim at four setscrews 134 respectively, be then screwed into four hold-down screws 135 respectively and lock, thus mount pad 131 is installed on floor.Connecting axle 132 is put into base accepting groove, then the end of one end of glass door 300 is put into the accepting groove 16 of door closer body 10, and in accepting groove 16, put into a pressing plate 141 and two pads 142, order is followed successively by a pressing plate 141, pad 142, glass door 300 and a pad 142.The other end of glass door 300 is fixed with folder 400 of visiting.Camshaft 80 stretches out one end of seal cover 120, and namely the square shaft 84 of camshaft 80 is contained in the square shaft accepting groove 1321 of connecting axle 132 away from one end of the second connecting axle 83.Penetrate four the first adjustment holes 1312 by four the first set screw 136 respectively and lock, to penetrate in four the second adjustment holes 1313 by four the second set screw 137 respectively and lock, then to penetrate in two the 3rd adjustment holes 1314 by two the first set screw 136 respectively and lock.Then door 133 is covered on mount pad 131, covers connecting axle 132, thus complete the installation of door closer 200.
Use above-mentioned door closer 200 without the need to pre-buried cement box, can directly install, easy to use, save artificial, speed up the work.Further, the volume of door closer 200 is much smaller than the volume of floor spring, easy to use.Being appreciated that when the hiding base assembly 130 of needs, corresponding accepting groove can being offered for accommodating base assembly 130 on floor, without the need to filling up cement, simple to operation.
Preferably, mount pad 131 and door 133 are circle, attractive in appearance, and process is not easily collided with and damages burnisher on clean floor.
In above-mentioned base assembly 130, connecting axle 132 is contained in the base accepting groove of mount pad 131, and coordinated with four the first adjustment holes 1312 and two the 3rd adjustment holes 1314 respectively by six the first set screw 136 and adjust the relative position of connecting axle 132 and mount pad 131 and connecting axle 132 is fixed on mount pad 131, wherein, four the first adjustment holes 1312 coordinate the left and right realized connecting axle 132 to adjust with four the first set screw 136, and two the 3rd adjustment holes 1314 coordinate the front and back realized connecting axle 132 to adjust with two the first set screw 136.Four the second adjustment holes 1313 and four the second set screw 137 realize the adjustment up and down to mount pad 131.
One end due to square shaft 84 is contained in connecting axle 132, and connecting axle 132 is contained in the base accepting groove of mount pad 131, the adjustment up and down of mount pad 131 and the front and back of connecting axle 132 and left and right adjustment can realize upper and lower, front and back and the left and right adjustment of square shaft 84, thus the deviation of installation can be made up, the requirement of aligning when reducing installation, conveniently installs.
Be appreciated that the quantity of the first adjustment hole 1312 is not limited to four, the quantity of the second adjustment hole 1313 is not limited to four, and the quantity of the 3rd adjustment hole 1314 is also not limited to two, can arrange according to the size reasonable of mount pad 131 and connecting axle 132.Securing member for coordinating with the first adjustment hole 1312, second adjustment hole 1313 and the 3rd adjustment hole 1314 is also not limited to the first set screw 136 and the second set screw 137, can be other securing members such as screw.
Preferably, please again consult Fig. 2, door closer 200 also comprises the pass family of power and influence 150 and flow speed control valve 160.
Please refer to Fig. 7, door closer body 10 offers oily passage 170, first oil-through hole 171 and the second oil-through hole 172, the pass family of power and influence 150 and flow speed control valve 160 are all arranged on door closer body 10, and the pass family of power and influence 150 and flow speed control valve 160 one end are positioned at the inside of door closer body 10, the other end stretches out the outside of door closer body 10, and with the sidewalls orthogonal of door closer body 10, namely vertical with the bearing of trend of host cavity 12.The one end of stretching out door closer body 10 outside is adjustable side.Oil passage 170, first oil-through hole 171 and flow speed control valve 160 form the first hydraulic oil path, and oily passage 170, second oil-through hole 172 and the pass family of power and influence 150 form the second hydraulic oil path.
Please again consult Fig. 3, during enabling, camshaft 80 on door closer 200 maintains static, other assemblies rotate with door, while camshaft 80 is motionless, the roll wheel assembly 110 abutted with the outer wall of cam disc 82 will relative motion on the curved surface of cam disc 82, because cam disc 82 is involute designs, radius can be increasing, so roll wheel assembly 110 will from the axle center of cam disc 82 more and more away from, thus promotion piston 20 moves near elastic component 30 direction, realize compression elastic piece 30 and increase spring potential energy, the hydraulic oil of elastic component 30 rear end flows to tail-hood 60 direction by the safety valve 70 on piston 20, at closing time, elastic component 30 potential energy release in door closer 200, promote piston 20 to move to the direction away from elastic component 30, thus drive roll wheel assembly 110 to move on the cam disc 82 of evolvent type, slowly close to the axle center of cam disc 82, namely rotate around cam disc 82 axle center, realize door closer 200 and to close the door function.
The piston nose of conventional piston type door closer only uses steel ball as one way valve oil sealing; close the door by force and can damage interior fittings; and the front end of piston 20 is provided with safety valve 70; in the pressure release of safety valve 70 meeting at closing time by force; thus protection interiors of products part, be conducive to the application life of improving door closer 200.
While normally closing the door, between safety valve 70 and tail-hood 60, the oil of chamber can flow to the chamber of elastic component 30 by oily passage 170, first oil-through hole 171, second oil-through hole 172, the oilhole closed in the family of power and influence 150 and flow speed control valve 160.The size of flow carrys out regulable control by the first oil-through hole 171 and the second oil-through hole 172, realizes the speed of closing the door.Concrete principle is: refer to Fig. 8, when door from 90 ° at closing time, oil enters from the first oil-through hole 171, go out from the oilhole in flow speed control valve 160, flow speed control valve 160 controls oily uninterrupted, realize the speed controlling to close the door, now piston 20 blocks the second oil-through hole 172, and hydraulic oil flows through the first hydraulic oil path; Refer to Fig. 9, when piston 20 continue to move to cover the first oil-through hole 171, second oil-through hole 172 expose time, oil enters from the oilhole closed in the family of power and influence 150, goes out from the second oil-through hole 172, closes the family of power and influence 150 and controls oily uninterrupted, hydraulic oil flows through the second hydraulic oil path, realizes control and to close the door speed.
Close the side that part that the family of power and influence 150 and flow speed control valve 160 stretch out door closer body 10 is all positioned at door closer body 10, namely vertical with the bearing of trend of host cavity 12 with the sidewalls orthogonal of door closer body 10, thus vertically with door to arrange, in speed regulation process, space is large, easy to operate.
Please again consult Fig. 1, door closer 200 also comprises the first enclosing cover 180 and the second enclosing cover 190.First enclosing cover 180 and the second enclosing cover 190 are removable installed in two sides of door closer body 10 respectively.Particularly, the first enclosing cover 180 and the second enclosing cover 190 are removable installed on two sides of door closer body 10 respectively respectively by securing member.
During installation, base assembly 130 is installed on after on floor, door closer body 10 is installed on base assembly 130, and glass door 300 is fixed on accepting groove 16, then on two relative sides of door closer body 10, install the first enclosing cover 180 and the second enclosing cover 190 respectively.
First enclosing cover 180 is set and the second enclosing cover 190 can comprise other assemblies such as door closer body 10, piston 20 preferably, improves the application life of door closer 200.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims (10)

1. a door closer, is characterized in that, comprising:
Door closer body, offers host cavity and the first accepting hole, described host cavity both ends open, and described first accepting hole is communicated with described host cavity;
Piston, is contained in described host cavity;
Elastic component, is contained in described host cavity, and one end of described elastic component abuts with described piston;
Dynamics adjusting part, comprise adjusting nut, helical gear, adjustment axle and force-regulating rod, described adjusting nut, helical gear and adjustment axle are all contained in described host cavity, one end of described adjusting nut abuts with described elastic component one end away from described piston, described helical gear abuts with described adjusting nut one end away from described elastic component, one end of described adjustment axle wears described helical gear and described adjusting nut, one end of described force-regulating rod wears described first accepting hole and abuts with described helical gear, and the other end stretches out described door closer body through described first accepting hole;
End cap and tail-hood, described end cap and tail-hood seal two openends of described host cavity respectively, and described piston abuts with described tail-hood away from one end of described elastic component, and the other end of described adjustment axle abuts with described end cap.
2. door closer according to claim 1, it is characterized in that, described door closer also comprises camshaft and roll wheel assembly, and described door closer body also offers the second accepting hole, the middle part of described piston offers the first through hole, second through hole and third through-hole, described first through hole is communicated with the second through hole, one end of described roll wheel assembly is contained in described first through hole, the other end is contained in described second through hole, described camshaft wears described third through-hole, and described door closer body is stretched out through described second accepting hole in one end of described camshaft, the middle part of described roll wheel assembly also abuts with described camshaft.
3. door closer according to claim 2, it is characterized in that, described door closer also comprises clutch shaft bearing and second bearing at the two ends being sheathed on described camshaft respectively, described clutch shaft bearing and the second bearing are deep groove ball bearing, and described deep groove ball bearing is the deep groove ball bearing that the height of inner ring is greater than the height of outer ring.
4. door closer according to claim 2, is characterized in that, described door closer also comprises safety valve, and one end of described piston offers first piston hole, and described safety valve to be contained in described first piston hole and to abut with described tail-hood.
5. door closer according to claim 2, it is characterized in that, also comprise base assembly, described base assembly comprises mount pad, connecting axle and door, described mount pad is installed on external bracing thing, and described mount pad offers base accepting groove, described connecting axle is contained in described base accepting groove, described door to be covered on described mount pad and to cover described connecting axle, the middle part of described connecting axle offers square shaft accepting hole, and one end that described camshaft stretches out described door closer body is contained in described square shaft accepting hole.
6. door closer according to claim 5, it is characterized in that, described mount pad offers multiple first adjustment hole, multiple second adjustment hole and multiple 3rd adjustment hole, described multiple first adjustment hole and multiple appended claims are used for pushing against described connecting axle, to carry out left and right adjustment to the position of described connecting axle, described multiple second adjustment hole and multiple appended claims are to adjust up and down the position of described mount pad, described multiple 3rd adjustment holes and multiple appended claims are used for pushing against described connecting axle, to carry out front and back adjustment to the position of described connecting axle.
7. door closer according to claim 5, is characterized in that, described mount pad and door are circle.
8. door closer according to claim 1, it is characterized in that, also comprise and be arranged at the pass family of power and influence on described door closer body and flow speed control valve, described door closer body offers oily passage, the first oil-through hole and the second oil-through hole, one end of the described pass family of power and influence and flow speed control valve is positioned at described door closer body interior, the other end stretches out described door closer body, described oily passage, the first oil-through hole and flow speed control valve form the first hydraulic oil path, and described oily passage, the second oil-through hole and the pass family of power and influence form the second hydraulic oil path.
9. door closer according to claim 8, is characterized in that, one end that the described pass family of power and influence and flow speed control valve stretch out described door closer body is vertical with the bearing of trend of described host cavity.
10. door closer according to claim 1, is characterized in that, also comprises the first enclosing cover and the second enclosing cover, and described first enclosing cover and the second enclosing cover are removable installed in the relative both sides of described door closer body respectively.
CN201420569179.8U 2014-03-18 2014-09-28 Door closer Expired - Fee Related CN204252715U (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201420569179.8U CN204252715U (en) 2014-09-28 2014-09-28 Door closer
JP2015052284A JP2015180799A (en) 2014-03-18 2015-03-16 Floor closer
AU2015201378A AU2015201378A1 (en) 2014-03-18 2015-03-17 Floor closer
KR1020150036863A KR20150108782A (en) 2014-03-18 2015-03-17 Floor closer
HK15107534.1A HK1204844A2 (en) 2014-09-28 2015-08-05 Door closer

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Application Number Priority Date Filing Date Title
CN201420569179.8U CN204252715U (en) 2014-09-28 2014-09-28 Door closer

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Publication Number Publication Date
CN204252715U true CN204252715U (en) 2015-04-08

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Application Number Title Priority Date Filing Date
CN201420569179.8U Expired - Fee Related CN204252715U (en) 2014-03-18 2014-09-28 Door closer

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HK (1) HK1204844A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968543A (en) * 2017-03-28 2017-07-21 丹阳市恩名五金制品有限公司 A kind of door closer shaft-cup and preparation method thereof
CN113047720A (en) * 2021-02-25 2021-06-29 佛山市嘉铧五金有限公司 Double-opening hydraulic hinge with adjustable buffering speed

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106968543A (en) * 2017-03-28 2017-07-21 丹阳市恩名五金制品有限公司 A kind of door closer shaft-cup and preparation method thereof
CN113047720A (en) * 2021-02-25 2021-06-29 佛山市嘉铧五金有限公司 Double-opening hydraulic hinge with adjustable buffering speed
CN113047720B (en) * 2021-02-25 2022-05-13 佛山市嘉铧五金有限公司 Double-opening hydraulic hinge with adjustable buffering speed

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Publication number Publication date
HK1204844A2 (en) 2015-12-04

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