CN203835118U - Door closer - Google Patents
Door closer Download PDFInfo
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- CN203835118U CN203835118U CN201420121045.XU CN201420121045U CN203835118U CN 203835118 U CN203835118 U CN 203835118U CN 201420121045 U CN201420121045 U CN 201420121045U CN 203835118 U CN203835118 U CN 203835118U
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Abstract
The utility model discloses a door closer which comprises a door closer body, a piston, a cam shaft comprising a cam plate, an end cover, a tail cover and an elastic part. The two ends of the elastic part are connected with the piston and the tail cover respectively in an abutting mode. The door closer body is provided with a containing groove, a containing hole and a containing cavity with two opened ends. The piston comprises a piston body contained in the containing cavity and a wheel arranged in the piston body. The piston body comprises a first piston head, a second piston head, a first piston wall and a second piston wall. The two ends of the first piston wall are connected with the first piston head and the second piston head respectively, and the two ends of the second piston wall are connected with the first piston head and the second piston head respectively. The first piston wall and the second piston wall are provided with a first through hole and a second through hole respectively, wherein the first through hole and the second through hole are communicated with the containing cavity. One end of the cam shaft penetrates through the first through hole and the second through hole and seals the first through hole and the second through hole, and the other end of the cam shaft penetrates out of the containing hole. The cam plate is connected with the wheel in an abutting mode, and the end cover and the tail cover seal the two opened ends of the containing cavity respectively. The door closer is convenient to use and long in service life.
Description
Technical field
The utility model relates to a kind of door closer.
Background technology
At present, the door closer that glass door is generally used (being commonly called as ground elastic component) needs pre-buried cement box, increases cost of labor and affects programming.Improved door closer is piston type door closer, and this piston type door closer is compared with ground elastic component, without pre-buried cement box, easy to use.
Yet the piston of this piston type door closer is semi-open type, discontinuity affects the life-span, makes its application life shorter; Meanwhile, before piston, only use steel ball as one way valve oil sealing, close the door by force and can damage interior fittings; Secondly, flow speed control valve is all design parallel with door, and inconvenient in use procedure speed governing, space is little, and hand is easily encountered door; In addition, bearing is to use needle bearing, and this bearing bearing radial force, can not bear axial force, and door axial force is stressed exactly after loading onto, therefore increased friction, affect the smooth and easy of switch gate, use extremely inconvenient.
Utility model content
Based on this, be necessary the use inconvenience that exists for existing door closer and application life lower problem, provide a kind of use for convenience of and application life longer door closer.
A door closer, comprising:
Door closer body, offers host cavity, accepting groove and accepting hole, described host cavity both ends open;
Piston, be contained in described host cavity, comprise piston main body and roller, described piston main body comprises first piston head, the second piston head, first piston wall and the second piston wall, the two ends of described first piston wall connect respectively described first piston head and the second piston head, the two ends of described the second piston wall connect respectively described first piston head and the second piston head, on described first piston wall, offer the first through hole, on described the second piston wall, offer the second through hole, described the first through hole and the second through hole are all communicated with described host cavity, described roller is arranged between described first piston wall and the second piston wall,
Camshaft, comprise cam disc, one end of described camshaft is contained in described host cavity, the other end stretches out described accepting hole, described camshaft is contained in one end of described host cavity and passes successively described the first through hole and the second through hole and seal described the first through hole and the second through hole, described cam disc is involute cam dish, and described cam disc and described roller butt;
Elastic component, is contained in described host cavity, and one end of described elastic component and described piston main body butt; And
End cap and tail-hood, described end cap and tail-hood seal respectively two openends of described host cavity, one end away from described elastic component of described piston main body and described end cap butt, the other end of described elastic component and described tail-hood butt.
Therein in an embodiment, described piston also comprises safety relief valve, on described first piston head, offer the first cavity of both ends open, described in described safety relief valve seal, an openend of the first cavity close described end cap, form hydraulic circuit between described end cap, safety relief valve, door closer body and tail-hood.
Therein in an embodiment, also comprise the first flow speed control valve and the second flow speed control valve, on described door closer body, offer oily passage, described oily passage comprises main channel and the first subchannel being all communicated with described main channel and the second subchannel, described the first subchannel and the second subchannel are communicated with or are not communicated with described hydraulic circuit according to the position of described piston, described the first flow speed control valve is arranged on described the first subchannel, and described the second flow speed control valve is arranged on described the second subchannel.
In an embodiment, described accepting groove is opened in the bottom of described door closer body therein, and described oily passage is opened on the side of described door closer body, and described the first flow speed control valve and the second flow speed control valve are arranged at the side of described door closer body.
Therein in an embodiment, also comprise base assembly, described base assembly comprises installing plate, rotor plate and door, described installing plate is installed on external bracing thing, installing plate is connected by securing member with rotor plate, described door is covered on described installing plate and rotor plate, on described installing plate, offer the first installing hole, on described rotor plate, offer the second installing hole, on described door, offer the 3rd installing hole, described camshaft stretches out one end of described accepting hole successively through described the 3rd installing hole, the second installing hole and the first installing hole and described door closer body is arranged on described base assembly rotationally.
Therein in an embodiment, described base assembly also comprises a plurality of expansion bolts, described securing member comprises a plurality of hold-down screws and a plurality of spiral shell pan head screw, on described installing plate, offer a plurality of the first fixing holes, on described rotor plate, offer a plurality of the second fixing holes, described a plurality of expansion bolt is fixed in external bracing thing, described installing plate is positioned on described external bracing thing, and described a plurality of the first fixing hole is aimed at respectively described a plurality of expansion bolt, described a plurality of hold-down screw is also locked and described installing plate is installed on described external bracing thing through a plurality of described a plurality of the first fixing holes and a plurality of expansion bolt respectively, described rotor plate is positioned on described installing plate, with a plurality of spiral shell pan head screws, through described a plurality of the second fixing holes locking, connect described rotor plate and installing plate respectively.
Therein in an embodiment, the cross section of described the second installing hole is for by rectangle and splice respectively the shape that the two terminal circle arc on rectangular two broadsides forms, and the second fixing hole is slotted eye.
Therein in an embodiment, also comprise the clutch shaft bearing and the second bearing that are contained in described host cavity, the end that described camshaft is contained in the one end in described host cavity is arranged in described clutch shaft bearing, the inwall butt of the middle part of described camshaft and described the second bearing.
In an embodiment, described clutch shaft bearing is deep-groove ball head bearing therein.
In an embodiment, also comprise the first enclosing cover and the second enclosing cover therein, described the first enclosing cover and the second enclosing cover are arranged at respectively the relative both sides of described door closer body.
While using above-mentioned door closer, one end that camshaft stretches out accepting hole is arranged on external bracing thing, and on floor, one end part of glass door is contained in accepting groove.While opening the door, camshaft maintains static, other assemblies rotate together with glass door, when camshaft is motionless, with the roller of its butt will the cam disc curved surface on camshaft on relative motion, because cam disc is involute cam dish, radius can be increasing, so roller will from the axle center of camshaft more and more away from, thereby promote piston, to elastic component direction, move, realizing compression elastic piece increases elastic component potential energy; At closing time, elastic component discharges, and promotes piston and moves, thereby drive roller to move in the cam card of the camshaft of evolvent type, slowly approaches the axle center of camshaft,, around the axle center rotation of camshaft, realizes the function of closing the door.
Use above-mentioned door closer without pre-buried cement box, easy to use.And the structure design of the piston main body of the piston of this door closer is compared this enclosed piston, use procedure is stressed comparatively even, is conducive to increase application life.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of the door closer of an embodiment;
Fig. 2 is the door closer body of the door closer shown in Fig. 1 and the decomposing schematic representation of piston;
Fig. 3 is the enlarged drawing of the decomposing schematic representation of the piston shown in Fig. 2;
Fig. 4 is the structural representation of existing piston main body;
Fig. 5 be the door closer shown in Fig. 1 installation the sectional view of door closer body of piston, elastic component and camshaft;
Fig. 6 is the use state diagram of the door closer shown in Fig. 1;
Fig. 7 be the door closer shown in Fig. 1 installation the sectional view of another angle of door closer body of piston, elastic component and camshaft;
Fig. 8 is the oily passage of offering and the first flow speed control valve of setting and the schematic diagram of the second flow speed control valve on the door closer body shown in Fig. 2;
Fig. 9～Figure 10 is the oil circuit schematic diagram of hydraulic oil at closing time.
The specific embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in detail.A lot of details have been set forth in the following description so that fully understand the utility model.But the utility model can be implemented to be much different from alternate manner described here, and those skilled in the art can do similar improvement without prejudice to the utility model intension in the situation that, so the utility model is not subject to 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, camshaft 30, elastic component 40, end cap 50 and tail-hood 60.
Door closer body 10 is roughly cuboid.
The inside of door closer body 10 offers the host cavity 12 extending along its length.Host cavity 12 both ends opens, two sides that lay respectively at door closer body 10 of two openends.One end of door closer body 10 offers the accepting groove 14 extending along its length.Host cavity 12 and accepting groove 14 be arranged in parallel.On door closer body 10, offer accepting hole 16.Accepting hole 16 and host cavity 12 are communicated with.Accepting hole 16 is relative with accepting groove 14, lays respectively at the two ends of door closer body 10.
Please refer to Fig. 3, piston 20 comprises enclosed piston main body 22 and roller 24.Enclosed piston main body 22 is roughly cylinder.
Piston main body 22 comprises first piston head 221, the second piston head 222, first piston wall 223 and the second piston wall 224.
First piston head 221 is cylinder, and cylindrical middle part offers the first cavity 225 of both ends open.The second piston head 222 is also cylinder, and this cylindrical middle part also offers the second cavity (not shown) of both ends open.First piston wall 223 and the second piston wall 224 all have curved surfaces and plane.The two ends of first piston wall 223 connect respectively first piston head 221 and the second piston head 222, the two ends of the second piston wall 224 connect respectively first piston head 221 and the second piston head 222, and form space between first piston wall 223 and the second piston wall 224, the surface that first piston wall 223 is relative with the second piston wall 224 is plane, makes piston main body 22 for cylindrical.
See also Fig. 4, existing piston main body 20' is semi-open type, and one of them piston wall of piston main body is not continuous distributed, but disconnect.Compare with the piston main body of existing semi-open type, the first piston wall 223 of piston main body 22 and the second piston wall 224 are continuous distributed, make when using this door closer 200, and piston main body 22 is stressed evenly, high life.
Refer to Fig. 3, on first piston wall 223, offer the first through hole 2232 and third through-hole 2234.Refer to Fig. 2, on the second piston wall 224, offer the second through hole 2242 and fourth hole 2244.The first through hole 2232 is relative with the second through hole 2242 and be all communicated with host cavity 12.Third through-hole 2234 is relative with fourth hole 2244 and be all communicated with host cavity 12.
Roller 24 comprises roller bodies 242 and is arranged at a plurality of needle rollers 244 of roller bodies 242 inside.Roller bodies 242 is hollow circular cylinder, and needle roller 244 is cylinder.A plurality of needle rollers 244 are arranged in the inwall that a circle is arranged at roller bodies 242.
Piston 20 also comprises roller shaft 26.Roller 24 is arranged between first piston wall 223 and the second piston wall 224, and over against third through-hole 2234 and fourth hole 2244.Roller shaft 26 is fixed on roller 24 in piston main body 22 through third through-hole 2234, roller bodies 242 and fourth hole 2244 successively, between first piston wall 223 and the second piston wall 224.
Preferably, in order to guarantee sealing, piston 20 also comprises two annular gaskets 28.Two annular gaskets 28 are arranged at respectively the two ends up and down of roller bodies 242.
Please again consult Fig. 2, camshaft 30 comprises the first connecting axle 31, cam disc 32, the second connecting axle 33 and the square shaft 34 connecting successively.Wherein, cam disc 32 is involute cam dish.
One end of camshaft 30 is contained in host cavity 12, and the other end stretches out accepting hole 16.Particularly, the first connecting axle 31 of camshaft 30, cam disc 32 and the second connecting axle 33 are all contained in host cavity 12, and square shaft 34 stretches out accepting hole 16 and be exposed in door closer body 10 outsides, and relative with accepting groove 12.
Preferably, door closer 200 also comprises clutch shaft bearing 35, the second bearing 36, the first sealing ring 37, the second sealing ring 38 and seal cover 39.Clutch shaft bearing 35, the second bearing 36, the first sealing ring 37 and the second sealing ring 38 are all contained in host cavity 12.The first sealing ring 37 is sheathed on clutch shaft bearing 35, and the second sealing ring 38 is sheathed on the second bearing 36.
One end of camshaft 30 is successively through accepting hole 16, the first through hole 2232 and the second through hole 2242, the free end of the first connecting axle 31 of camshaft 30 is connected with the second bearing 36, the inwall butt of the outer wall of the second connecting axle 33 and clutch shaft bearing 35 and camshaft 30 is fixed on door closer body 10, and make the outer wall of cam disc 32 and the outer wall butt of roller bodies 242.
Preferably, clutch shaft bearing 35 is deep-groove ball head bearing.Deep-groove ball head bearing can carry axial force.Conventional needle bearing can not carry axial force, can only lean on the pad of bottom to support that door is heavy and bring axial force to camshaft 30, cause is plane contact, in the moving process of camshaft 30 axles, will produce very large friction with pad, have a strong impact on the smooth and easy of switch gate, once pad wearing and tearing, will damage needle bearing, thereby reduce product application life.Use deep-groove ball head bearing to solve the problems referred to above, can carry axial force, improved the friction of coming because of door heave hand, make switch gate more smooth and easy.
The middle part of seal cover 39 offers through hole (figure is mark not), and seal cover 39 is also locked and sealing accepting hole 16 through square shaft 34.
Please refer to Fig. 5, elastic component 40 is contained in host cavity 12(Fig. 5 and does not mark) in.End cap 50 and tail-hood 60 are arranged at respectively the two ends of door closer body 10, seal respectively two openends of host cavity 12.Preferably, in order to guarantee sealing performance, also comprise the end cap seal circle 52 being sheathed on end cap 50 and be sheathed on the tail-hood sealing ring 62 on tail-hood 60.
One end of elastic component 40 and piston 20 butts, the other end and tail-hood 60 butts.Piston 20 is away from one end and end cap 50 butts of elastic component 40, i.e. first piston head 221 and end cap 50 butts.
Preferably, elastic component 40 is helical spring.
Please refer to Fig. 6, while using above-mentioned door closer 200, camshaft 30 stretches out one end of accepting hole 16, the square shaft 34 that is camshaft 30 is fixed on external bracing thing, on floor, one end part of glass door 300 is contained in accepting groove 14, and the other end of glass door 300 is fixing with the folder 400 of visiting.While opening the door, camshaft 30 maintains static, other assemblies rotate together with glass door 300, when camshaft 30 is motionless, with the roller 24 of its butt will cam disc 32 curved surfaces on camshaft 30 on relative motion, because cam disc 32 is involute cam dishes, radius can be increasing, so roller 24 will from the axle center of camshaft 30 more and more away from, thereby promote piston 20, to elastic component 40 directions, move, realize the potential energy that compression elastic piece 40 increases elastic components 40; At closing time, elastic component 40 discharges, and promotes piston 20 and moves, thereby drive roller 24 to move in the card of the cam disc 32 of involute cam axle 30, slowly approaches the axle center of camshaft 30,, around the axle center rotation of camshaft 30, realizes the function of closing the door.
Use above-mentioned door closer 200 without pre-buried cement box, can directly install, easy to use, save manually, speed up the work.And the volume of door closer 200 is much smaller than the volume of floor spring, easy to use.
The first piston wall 223 of piston main body 22 and the second piston wall 224 are continuous structure, when being coordinated with assemblies such as roller 24, camshafts 30, piston main body 22 forms enclosed construction, relatively existing semienclosed piston, in use, piston 20 stressed more even, favourable raising application life.
See also Fig. 3 and Fig. 5, preferably, piston 20 also comprises safety relief valve 29.Safety relief valve 29 is arranged on first piston head 221, an openend of sealing the first cavity 225 close end cap 50.Between two chamber walls of the host cavity 12 of end cap 50, safety relief valve 29, door closer body 10 and tail-hood 60, form hydraulic circuit (figure is mark).The inner hydraulic oil that adopts of host cavity 12 is as Transfer Medium.
Preferably, see also Fig. 2 and Fig. 7, door closer 200 also comprises the first flow speed control valve 70 and the second flow speed control valve 80.
See also Fig. 5, Fig. 7 and Fig. 8, on door closer body 10, offer oily passage 18.Oil duct 18 comprises main channel 182, the first subchannel 184 and the second subchannel 186.Main channel 182 closed at both ends.One end of the first subchannel 184 is communicated with main channel 182, and one end of the second subchannel 186 is communicated with main channel 182.
The first flow speed control valve 70 is arranged on the first subchannel 184 and door closer body 10 is stretched out in its adjustable side, by regulating the aperture of the first flow speed control valve 70 to carry out the flow of regulator solution force feed.The second flow speed control valve 80 is arranged on the second subchannel 186 and door closer body 10 is stretched out in its adjustable side, by regulating the aperture of the second flow speed control valve 80 to carry out the flow of regulator solution force feed.
While opening the door, elastic component 40 is compressed, and the hydraulic oil of elastic component 40 one end flows to end cap 50 directions by safety relief valve 29.
Normally at closing time, between safety relief valve 29 and end cap 50, the hydraulic oil of chamber flows to the chamber of elastic component 40 one end by oily passage 18, as shown in Figure 7.By the size that regulates the first flow speed control valve 70 and the second flow speed control valve 80 to control hydraulic fluid flow rate, control the speed of closing the door.
Refer to Fig. 9,90 ° at closing time, and hydraulic oil flows to the first subchannel 184 through the first flow speed control valve 70, and enter hydraulic circuit Elastic part 40 chamber on one side from the first subchannel 184.
When piston 20 moves to, block the first subchannel 184, and while exposing the second subchannel 186, hydraulic oil flows into hydraulic circuits from the second subchannel 186, by regulating the second flow speed control valve 80 to control hydraulic fluid flow rates size, realize and control the speed of closing the door, as shown in figure 10.
The front end of piston 20 is provided with safety relief valve 29, in the pressure release of safety relief valve meeting at closing time by force, thus protection interiors of products part, the application life that is conducive to improve door closer 200.
By oily passage 18, the first flow speed control valve 70 and the second flow speed control valve 80 are rationally set, can independently control two sections of door closing speed.Compare existing door closer and only adopt steel ball as one way valve oil sealing, be conducive to protect door closer 200 interior fittings, improve application life.
Preferably, the part that the first flow speed control valve 70 and the second flow speed control valve 80 stretch out door closer body 10 is all positioned at the side of door closer body 10, arrange vertical with door, and in speed regulation process, space is large, easy to operate.
Preferably, please again consult Fig. 1, door closer 200 also comprises base assembly 90.Base assembly 90 comprises installing plate 91, rotor plate 92, door 93, securing member and a plurality of spiral shell pan head screw 96.Securing member comprises a plurality of setscrews 94 and a plurality of hold-down screw 95.
The middle part of installing plate 91 offers the first installing hole 912, and offers a plurality of the first fixing holes 914 around the first installing hole 912.The middle part of rotor plate 92 offers the second installing hole 922, and offers a plurality of the second fixing holes 924 around the second installing hole 922.The middle part of shelves lid 93 offers the 3rd installing hole 932.
Installing plate 91 is installed on external bracing thing, as is installed on floor.Rotor plate 92 is positioned on installing plate 91 and with installing plate 91 and is connected by securing member, and door 93 is covered on installing plate 91 and rotor plate 92.Particularly, a plurality of setscrews 94 are put into respectively external bracing thing as the hole taking a turn for the better on floor, installing plate 91 is positioned on external bracing thing, make a plurality of the first fixing holes 914 aim at respectively a plurality of setscrews 94, respectively a plurality of hold-down screws 95 are passed successively to a plurality of the first fixing holes 914 and a plurality of setscrew 94 locking and installing plate 91 is installed on external bracing thing.Rotor plate 92 is positioned on installing plate 91, and a plurality of spiral shell pan head screws 96 are also locked and installing plate 91 and rotor plate 92 are removably connected through a plurality of the second fixing holes 924 respectively.Cover door 93, thereby base assembly 90 is fixed on external bracing thing.Wherein, the first installing hole 912, the second installing hole 922 are relative with the 3rd installing hole 932.
After base assembly 90 is fixed on external bracing thing, the square shaft of camshaft 30 34 is stretched in the 3rd installing hole 932, the second installing hole 922 and the first installing hole 912, and make bottom and door 93 butts of door closer body 10.Base assembly 90 is set more easily door closer body 10 is connected with external bracing thing, and is conducive to reduce the damage to outside supporter.
Further preferably, the cross section of the second installing hole 922 of rotatable lamella 92 is for by rectangle and splice respectively the shape that the two terminal circle arc on rectangular two broadsides forms, and the second fixing hole 924 is slotted eye.The second installing hole 922 and the second fixing hole 924 adopt above-mentioned shape design, can all around, move clockwise and counterclockwise, make to install while there is position deviation at glass door 300, and can carry out position adjustment, convenient installation.
More preferably, installing plate 91, rotor plate 92 and door 93 are circle, attractive in appearance, and process is difficult for colliding with and damaging burnisher on clean floor.
Please again consult Fig. 1, door closer 200 also comprises the first pad 102, the second pad 104 and pressing plate 106.On two relative cell walls of accepting groove 14, all offer a plurality of fixing holes 142.The first pad 102, the second pad 104 and pressing plate 106 are positioned in accepting groove 14, the part of one end of glass door 300 is held between the first pad 102 and the second pad 104, pressing plate 106 is near one of them cell wall.A plurality of securing members 144 are also locked and glass door 300 are fixed in accepting groove 14 through a plurality of fixing holes 142 respectively.
The first pad 102, the second pad 104 and pressing plate 106 cover glass door 300 is preferably set.And pressing plate 106 can regulate the width of accepting groove 14 well, to push against preferably glass basis 300.
Door closer 200 also comprises the first enclosing cover 112 and the second enclosing cover 114.The first enclosing cover 112 and the second enclosing cover 114 are arranged at respectively two sides of door closer body 10.Particularly, the first enclosing cover 112 and the second enclosing cover 114 are removable installed in respectively on two sides of door closer body 10 by securing member respectively.
During installation, after base assembly 90 is installed on external bracing thing, door closer body 10 is installed on base assembly 90, and glass door 300 is fixed on accepting groove 14, then on two relative sides of door closer body 10, install the first enclosing cover 112 and the second enclosing cover 114 respectively.
The first enclosing cover 112 is set and the second enclosing cover 114 can comprise other assemblies such as door closer body 10, piston 20 preferably, improves the application life of door closer 200.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore 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, accepting groove and accepting hole, described host cavity both ends open;
Piston, be contained in described host cavity, comprise piston main body and roller, described piston main body comprises first piston head, the second piston head, first piston wall and the second piston wall, the two ends of described first piston wall connect respectively described first piston head and the second piston head, the two ends of described the second piston wall connect respectively described first piston head and the second piston head, on described first piston wall, offer the first through hole, on described the second piston wall, offer the second through hole, described the first through hole and the second through hole are all communicated with described host cavity, described roller is arranged between described first piston wall and the second piston wall,
Camshaft, comprise cam disc, one end of described camshaft is contained in described host cavity, the other end stretches out described accepting hole, described camshaft is contained in one end of described host cavity and passes successively described the first through hole and the second through hole and seal described the first through hole and the second through hole, described cam disc is involute cam dish, and described cam disc and described roller butt;
Elastic component, is contained in described host cavity, and one end of described elastic component and described piston main body butt; And
End cap and tail-hood, described end cap and tail-hood seal respectively two openends of described host cavity, one end away from described elastic component of described piston main body and described end cap butt, the other end of described elastic component and described tail-hood butt.
2. door closer according to claim 1, it is characterized in that, described piston also comprises safety relief valve, on described first piston head, offer the first cavity of both ends open, described in described safety relief valve seal, an openend of the first cavity close described end cap, form hydraulic circuit between described end cap, safety relief valve, door closer body and tail-hood.
3. door closer according to claim 2, it is characterized in that, also comprise the first flow speed control valve and the second flow speed control valve, on described door closer body, offer oily passage, described oily passage comprises main channel and the first subchannel being all communicated with described main channel and the second subchannel, described the first subchannel and the second subchannel are communicated with or are not communicated with described hydraulic circuit according to the position of described piston, described the first flow speed control valve is arranged on described the first subchannel, and described the second flow speed control valve is arranged on described the second subchannel.
4. door closer according to claim 3, it is characterized in that, described accepting groove is opened in the bottom of described door closer body, and described oily passage is opened on the side of described door closer body, and described the first flow speed control valve and the second flow speed control valve are arranged at the side of described door closer body.
5. door closer according to claim 1, it is characterized in that, also comprise base assembly, described base assembly comprises installing plate, rotor plate and door, described installing plate is installed on external bracing thing, installing plate is connected by securing member with rotor plate, described door is covered on described installing plate and rotor plate, on described installing plate, offer the first installing hole, on described rotor plate, offer the second installing hole, on described door, offer the 3rd installing hole, described camshaft stretches out one end of described accepting hole successively through described the 3rd installing hole, the second installing hole and the first installing hole and described door closer body is arranged on described base assembly rotationally.
6. door closer according to claim 5, it is characterized in that, described base assembly also comprises a plurality of expansion bolts, described securing member comprises a plurality of hold-down screws and a plurality of spiral shell pan head screw, on described installing plate, offer a plurality of the first fixing holes, on described rotor plate, offer a plurality of the second fixing holes, described a plurality of expansion bolt is fixed in external bracing thing, described installing plate is positioned on described external bracing thing, and described a plurality of the first fixing hole is aimed at respectively described a plurality of expansion bolt, described a plurality of hold-down screw is also locked and described installing plate is installed on described external bracing thing through a plurality of described a plurality of the first fixing holes and a plurality of expansion bolt respectively, described rotor plate is positioned on described installing plate, with a plurality of spiral shell pan head screws, through described a plurality of the second fixing holes locking, connect described rotor plate and installing plate respectively.
7. door closer according to claim 6, is characterized in that, the cross section of described the second installing hole is for by rectangle and splice respectively the shape that the two terminal circle arc on rectangular two broadsides forms, and the second fixing hole is slotted eye.
8. door closer according to claim 1, it is characterized in that, also comprise the clutch shaft bearing and the second bearing that are contained in described host cavity, the end that described camshaft is contained in the one end in described host cavity is arranged in described clutch shaft bearing, the inwall butt of the middle part of described camshaft and described the second bearing.
9. door closer according to claim 8, is characterized in that, described clutch shaft bearing is deep-groove ball head bearing.
10. door closer according to claim 1, is characterized in that, also comprises the first enclosing cover and the second enclosing cover, and described the first enclosing cover and the second enclosing cover are arranged at respectively the relative both sides of described door closer body.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121045.XU CN203835118U (en) | 2014-03-18 | 2014-03-18 | 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420121045.XU CN203835118U (en) | 2014-03-18 | 2014-03-18 | Door closer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203835118U true CN203835118U (en) | 2014-09-17 |
Family
ID=51512978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420121045.XU Expired - Fee Related CN203835118U (en) | 2014-03-18 | 2014-03-18 | Door closer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203835118U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366488A (en) * | 2016-05-11 | 2017-11-21 | 盖慈有限公司 | Drive device for door |
| CN108952411A (en) * | 2018-08-14 | 2018-12-07 | 珠海保税区茵科舒尔特门控科技有限公司 | A kind of small-sized hydraulic door closer |
| TWI690647B (en) * | 2019-03-29 | 2020-04-11 | 松之門控設備股份有限公司 | Cam door closer |
| CN116025240A (en) * | 2023-03-30 | 2023-04-28 | 箭牌家居集团股份有限公司 | Door closer assembly and shower room device |
-
2014
- 2014-03-18 CN CN201420121045.XU patent/CN203835118U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366488A (en) * | 2016-05-11 | 2017-11-21 | 盖慈有限公司 | Drive device for door |
| CN108952411A (en) * | 2018-08-14 | 2018-12-07 | 珠海保税区茵科舒尔特门控科技有限公司 | A kind of small-sized hydraulic door closer |
| TWI690647B (en) * | 2019-03-29 | 2020-04-11 | 松之門控設備股份有限公司 | Cam door closer |
| CN116025240A (en) * | 2023-03-30 | 2023-04-28 | 箭牌家居集团股份有限公司 | Door closer assembly and shower room device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140917 Termination date: 20190318 |
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| CF01 | Termination of patent right due to non-payment of annual fee |