CN201236916Y

CN201236916Y - Furniture damper

Info

Publication number: CN201236916Y
Application number: CNU2008200517431U
Authority: CN
Inventors: 伍志勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-31
Filing date: 2008-07-31
Publication date: 2009-05-13
Anticipated expiration: 2018-07-31

Abstract

The utility model relates to a damper for furniture. The damper comprises a piston and a damping fin arranged inside a cylinder body and connected in sequence, wherein, one end of the piston rod extends into the cylinder body and is connected with the piston after passing through the damping fin, one or more over-flow holes are formed on the piston, or one or more first over-flow grooves are formed outside the piston, an annular step is arranged on one side of the damping fin back on to the piston, and a specific oil passing clearance is kept between the piston and the inner wall of the cylinder body, and between the damping fin and the inner wall of the cylinder body. One end of the piston rod connected with the piston is T-shaped, and connected with the piston into a whole. The damper can be arranged inside a hinge arm, the rotation is flexible and the loosening is not easy to occur. During the door closing process, the shock resistance is strong, the door closing speed can be effectively buffered, simultaneously, the impaction noise during the door closing can be reduced, but the affection is very small during the door opening process. The structure is simple and reliable, the production is low, and the service life is long.

Description

A kind of damper of furniture

Technical field

The utility model relates to a kind of damper of furniture, is mainly used on hinge and the slide rail.

Background technique

A kind of Domestic hinge is disclosed among the Chinese patent literature CN2802015Y, comprise pivoted arm and hinge cup, pivoted arm is provided with base, and and hinge cup between be provided with outer articulated elements and interior articulated elements, outer articulated elements and interior articulated elements are hinged with the last installation shaft and the following installation shaft of pivoted arm respectively, last installation shaft is provided with spring, one end of spring withstands on outer articulated elements outer wall, the other end withstands on the stationary axle of pivoted arm, has cavity on the base, is provided with damping device in the cavity.Damping device comprises sealed at both ends cylinder body, be located at the piston rod in the cylinder body and be fixed on piston on the piston rod, have the external sealed groove on the outer surface of piston, external sealed groove both sides are provided with Sealing along having damping hole and return port on the piston axis direction in the external sealed groove.The Domestic hinge of this structure is bulky, assembly technology complexity, fabricating cost height.

Disclose a kind of oil hydraulic cylinder that is used for hinge among the China Patent No. ZL200520061415.6, its technological scheme is: the oil hydraulic cylinder that is used for hinge is made up of cylinder body, piston, piston rod, preceding pedestal, Sealing etc.; Described piston has straight small through hole and a funnel-shaped apertures vertically, and described funnel-shaped apertures is communicated by hopper head and funnel tail and forms; The termination that described piston is housed of described piston rod is provided with at least one cylinder step; The described termination of described piston and described piston rod is fixedly connected.The end that the piston rod of this structure is connected with piston is narrow, and when piston rod was hit, the end fractureed easily, simultaneously, because the area that is connected with piston is little, gets loose easily, reduces working life greatly.

The model utility content

Technical problem to be solved in the utility model be to provide a kind of simple and reasonable, volume is little, fabricating cost is low, the damper of the furniture of flexible operation, long service life, to overcome deficiency of the prior art.

Press the damper of a kind of furniture of this purpose design, comprise and be arranged on piston and the damping fin that joins successively in the cylinder body, piston rod one end stretches in the cylinder body, after passing damping fin, join with piston, its structure characteristic is that piston is provided with one and above flowing hole, or the piston arranged outside has one and the first above mistake chute, a damping fin side of piston dorsad is provided with circular step, keeps certain oil-gap of crossing between piston and damping fin and the inboard wall of cylinder block.

Described damping fin outer wall also axially is provided with the 3rd and crosses chute.

Described piston-top surface also is provided with second and crosses chute, and second crosses chute is communicated with piston outer wall.

The corresponding piston rod of described cylinder body front end is provided with center hole, terminal opening wide, inside is disposed with seal ring, baffle plate, spring, banking stop, damping fin, piston and foam body from front to back, and by terminal capping encapsulation, piston rod and piston are connected as a single entity, pass the piston nose part successively, stretch out outside the cylinder body; Banking stop is provided with the location short column towards damping fin one side, be arranged in the circular step, central authorities are provided with the guide groove of allowing that piston rod passes through, be provided with oil-gap between guide groove and the piston rod, this guide groove is in-line, Y font, triangle, cross, quadrilateral or pentalpha, keeps certain oil-gap of crossing between banking stop and the inboard wall of cylinder block.

Described cylinder body is arranged on the hinge, and afterbody has been wholely set fixed base, and fixed base is provided with first pin-and-hole that runs through both sides, fixedlys connected with the pivoted arm of hinge by bearing pin; The end that piston rod stretches out cylinder body is the T font, and its head is set in the gripping head, and gripping head is two, is symmetrical set, and corresponding respectively latch is provided with second pin-and-hole on it, and a gripping head side inwardly is provided with the locating aperture groove; Be hinged with driving component on the latch, be in transmission connection with the hinge swing arm, hinge rocking arm one end is hinged in the hinges fixing reservation, and the other end is hinged in the pivoted arm.

The end that described piston rod is connected with piston is the T font, is connected as a single entity with piston.The T shape end width of piston rod is greater than body of rod width, and body of rod section that piston rod is connected with piston and/or T shape end surface are provided with groove.

Damper of the present utility model is arranged in the pivoted arm, rotates flexibly, is not prone to loosening.At closing time, strong shock resistance can effectively slow down the speed of closing the door, and reduces collision sound simultaneously; And when opening the door, then be affected hardly.The end that piston rod is connected with piston is the T font, increases to connect area, can support and be subjected to bigger push-pull effort, and cylinder body front cover and rear end fixed base and cylinder body are made of one, and reduce installation steps, also avoids connecting the phenomenon that cracking appears in seam.It is simple and reasonable, the cost cost is low, the life-span is long.

Description of drawings

Fig. 1 is the utility model one embodiment's decomposition texture schematic representation.

Fig. 2 and Fig. 3 assemble the structural representation of latter two angle for the utility model.

Fig. 4 is the utility model sectional structure schematic representation.

Fig. 5 is the utility model piston rod construction schematic representation.

Fig. 6 is the utility model baffle arrangement schematic representation.

Fig. 7 is the decomposition texture schematic representation that piston rod is connected with piston, damping fin and banking stop.

Fig. 8 is the utility model user mode sectional structure schematic representation.

Fig. 9 is another mode of execution structural representation of the utility model piston.

Figure 10 is another mode of execution structural representation of the utility model damping fin.

Among the figure: 1 is terminal capping, 1.1 be projection, 2 is foam body, 3 is piston, 3.1 be the first mistake chute, 3.2 be the second mistake chute, 3.3 be the location pilum, 3.4 be last locating column 3.4,4 is damping fin, 4.1 be circular step, 4.2 be first oil-through hole, 4.3 be the pilum attachment hole, 5 is banking stop, 5.1 be guide groove, 5.2 be last locating column attachment hole, 5.3 be the location short column, 6 is piston rod, 6.1 be T shape end, 6.2 be groove, 7 is spring, 8 is baffle plate, 8.1 be second oil-through hole, 9 is seal ring, 10 is cylinder body, 10.1 be fixed base, 10.2 be first pin-and-hole, 10.3 be locating groove, 11 is gripping head, 11.1 be second pin-and-hole, 11.2 be the locating aperture groove, 12 is latch, 13 is the hinges fixing reservation, 14 are swing arm, 15 is pivoted arm, 16 is bearing pin.

Embodiment

Below in conjunction with drawings and Examples the utility model is further described.

Referring to Fig. 1-Fig. 8, the damper of this furniture comprises hinges fixing reservation 13, pivoted arm 15 and rocking arm 14, and damper one end and pivoted arm join, and the other end and rocking arm join, and see Fig. 8.Damper comprises and is arranged on piston 3, damping fin 4 and the banking stop 5 that joins successively in the cylinder body 10, piston rod 6 one ends stretch in the cylinder body, after passing banking stop and damping fin, join with piston, the piston outside is provided with one and the first above mistake chute 3.1, damping fin is provided with circular step 4.1 towards banking stop one side, keeps certain oil-gap of crossing between piston, damping fin and banking stop and the inboard wall of cylinder block, sees Fig. 7.The corresponding piston rod of cylinder body 10 front ends is provided with center hole, terminal opening wide, inside is provided with seal ring 9, baffle plate 8, spring 7, banking stop 5, damping fin 4, piston 3 and foam body 2 (seeing that arrow is depicted as installation direction among Fig. 1) from front to back successively, and by terminal capping 1 encapsulation, piston rod 6 is connected as a single entity with piston, pass the piston nose part successively, stretch out outside the cylinder body, see Fig. 1.Cylinder body 10 is arranged on the hinge, and afterbody is integrally formed with fixed base 10.1, and fixed base is provided with first pin-and-hole 10.2 that runs through both sides, sees Fig. 2 and Fig. 3, fixedlys connected with the pivoted arm 15 of hinge by bearing pin 16.Fixed base 10.1 inwalls are provided with locating groove 10.3, are connected with terminal capping, and terminal capping correspondence is provided with projection 1.1, sees Fig. 1 and Fig. 2.The end that piston rod 6 stretches out cylinder body is the T font, and its head is set in the gripping head 11, and gripping head is two, is symmetrical set, and corresponding respectively latch 12 is provided with second pin-and-hole 11.1 on it, and a gripping head side inwardly is provided with locating aperture groove 11.2, sees Fig. 1 and Fig. 3.Be hinged with driving component on the latch 12, be in transmission connection with hinge swing arm 14, hinge rocking arm one end is hinged in the hinges fixing reservation 13, and the other end is hinged in the pivoted arm.The end that piston rod is connected with piston is the T font, is connected as a single entity with piston.T shape end 6.1 width of piston rod are greater than body of rod width, and body of rod section that piston rod is connected with piston and/or T shape end surface are provided with groove 6.2, see Fig. 5.The first overcurrent fluted shaft of piston 3 outer walls is to setting, end face is respectively arranged with one and the above second mistake chute 3.2 and location pilum 3.3, second crosses chute is communicated with piston outer wall, the location pilum is provided with the less last locating column 3.4 of external diameter, damping fin 4 is set on the pilum of location, the corresponding location of damping fin pilum is provided with pilum attachment hole 4.3, and last locating column is provided with banking stop 5, and the banking stop correspondence is provided with locating column attachment hole 5.2.Damping fin is provided with the circular step 4.1 towards outer incline towards the banking stop edge, central authorities are provided with first oil-through hole 4.2 with the piston rod Spielpassung.Banking stop 5 is provided with location short column 5.3 towards damping fin one side, is arranged in the circular step 4.1, and central authorities are provided with the guide groove 5.1 of allowing that piston rod 6 passes through, and are provided with oil-gap between guide groove and the piston rod, and this guide groove is cross.Seal ring 9 is a y-type seal ring, and baffle plate 8 is ring, and the center is provided with second oil-through hole 8.1 with the piston rod Spielpassung, sees Fig. 6.

Above-mentioned described piston 3 ' end face is not provided with second and crosses chute, and outer wall is provided with first and crosses chute 3.1 ', sees Fig. 9; Damping fin 4 ' outer wall also can axially be provided with the 3rd and cross chute 4.4 ', sees Figure 10.

Claims

1. the damper of a furniture, comprise and be arranged on piston (3) and the damping fin (4) that joins successively in the cylinder body (10), piston rod (6) one ends stretch in the cylinder body, after passing damping fin, join with piston, it is characterized in that piston is provided with one and above flowing hole, or the piston arranged outside there are one and the first above mistake chute (3.1), a damping fin side of piston dorsad is provided with circular step (4.1), keeps certain oil-gap of crossing between piston and damping fin and the inboard wall of cylinder block.

2. according to the damper of the described furniture of claim 1, the first overcurrent fluted shaft that it is characterized in that described piston outer wall is to setting, end face is respectively arranged with one and above location pilum (3.3), the location pilum is provided with the less last locating column (3.4) of external diameter, damping fin is set on the pilum of location, and last locating column is provided with banking stop (5); Damping fin is provided with the circular step (4.1) towards outer incline towards the banking stop edge, central authorities are provided with first oil-through hole (4.2) with the piston rod Spielpassung.

3. according to the damper of the described furniture of claim 2, it is characterized in that described piston-top surface also is provided with second and crosses chute (3.2), second crosses chute is communicated with piston outer wall.

4. according to the damper of the described furniture of claim 2, it is characterized in that described damping fin outer wall also axially is provided with the 3rd and crosses chute (4.4 ').

5. according to the damper of the described furniture of claim 1, it is characterized in that the corresponding piston rod of described cylinder body front end is provided with center hole, terminal opening wide, inside is disposed with seal ring (9), baffle plate (8), spring (7), banking stop (5), damping fin, piston and foam body (2) from front to back, and encapsulate by terminal capping (1), piston rod and piston are connected as a single entity, and pass the piston nose part successively, stretch out outside the cylinder body; Banking stop is provided with location short column (5.3) towards damping fin one side, be arranged in the circular step, central authorities are provided with the guide groove (5.1) of allowing piston rod and passing through, be provided with oil-gap between guide groove and the piston rod, this guide groove is in-line, Y font, triangle, cross, quadrilateral or pentalpha, keeps certain oil-gap of crossing between banking stop and the inboard wall of cylinder block.

6. according to the damper of the described furniture of claim 5, it is characterized in that described cylinder body is arranged on the hinge, afterbody has been wholely set fixed base (10.1), and fixed base is provided with first pin-and-hole (10.2) that runs through both sides, fixedlys connected with the pivoted arm (15) of hinge by bearing pin (16); The end that piston rod stretches out cylinder body is the T font, its head is set in the gripping head (11), and gripping head is two, is symmetrical set, corresponding latch of difference (12) is provided with second pin-and-hole (11.1) on it, and a gripping head side inwardly is provided with locating aperture groove (11.2); Be hinged with driving component on the latch, be in transmission connection with hinge swing arm (14), hinge rocking arm one end is hinged in the hinges fixing reservation (13), and the other end is hinged in the pivoted arm.

7. according to the damper of the described furniture of claim 1, it is characterized in that the end that described piston rod is connected with piston is the T font, is connected as a single entity with piston.

8. according to the damper of the described furniture of claim 7, T shape end (6.1) width that it is characterized in that described piston rod is greater than body of rod width, and body of rod section that piston rod is connected with piston and/or T shape end surface are provided with groove (6.2).

9. according to the damper of the described furniture of claim 6, it is characterized in that described fixed base inwall is provided with locating groove (10.3), be connected that terminal capping correspondence is provided with projection (1.1) with terminal capping.

10. according to the damper of the described furniture of claim 5, it is characterized in that described seal ring is a y-type seal ring, baffle plate is ring, and the center is provided with second oil-through hole (8.1) that cooperates with the piston clearance.