CN2571957Y

CN2571957Y - Door axle buffer

Info

Publication number: CN2571957Y
Application number: CN 02272493
Authority: CN
Inventors: 麦焯芹
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-14
Filing date: 2002-08-14
Publication date: 2003-09-10
Anticipated expiration: 2012-08-14

Abstract

The utility model discloses a buffered device, particularly the device reducing impact when a wing fan of furniture is closed or a drawer is closed. The utility model relates to a door axle buffer, which comprises a hydraulic pressure cylinder, a piston, and a piston rod, wherein, the inner part of the hydraulic pressure cylinder is provided with damping liquid, wherein, one end of the hydraulic pressure cylinder is opened and is matched with an end cover; the end cover is provided with a guide sleeve; the piston rod is penetrated through the end cover and the guide sleeve; the outer end of the piston rod is provided with an elastic bumping head; the inner end of the piston rod is provided with a limiting structure; a spring pushing the piston to the piston rod is arranged between the piston and the bottom of the hydraulic pressure cylinder; the piston is provided with a liquid flow channel connecting hollow cavities at both sides. The utility model has the advantages of reasonable and simple structure, convenient installation and use, low cost, and beautiful appearance.

Description

Door is taken out snubber

(1) technical field

The utility model relates to a kind of device of buffering, especially a kind of device that slows down the impact when the furniture wing is closed or drawer closes.

(2) background technology

Existing furniture wing when closing or drawer easily collide mutually when closing with main body, make a noise, also easily damage mutually.

(3) summary of the invention

The purpose of this utility model is to provide a kind of door that slows down the impact when the furniture wing is closed or drawer closes to take out snubber.

For achieving the above object, the utility model is by the following technical solutions:

A kind of door is taken out snubber, in comprising, it contains hydraulic cylinder, piston and the piston rod of damping liquid, hydraulic cylinder one end opening and be furnished with end cap, end cap has fairlead, piston rod runs through end cap and fairlead, and the outer end of piston rod is equipped with elasticity and is ramed, and the inner of piston rod is provided with position limiting structure, be equipped with between piston and the cylinder bottom the spring of piston top to piston rod, piston is provided with the liquid passage excessively that connects the both sides cavity.

When elasticity was ramed pressurized, piston rod inwardly contracted, and piston rod compresses spring by piston, had the damping liquid in the chamber of spring to flow to the chamber that piston rod is arranged through the liquid passage, and under the double action of damping liquid and spring, elasticity is ramed and contracted in can only be slowly; When elasticity was ramed not pressurized, the resistance that spring will overcome damping liquid was ramed elasticity and is ejected.

Technique scheme can also be further improved by following technical measures.

Described position limiting structure is the flange that forms in piston-rod end.

Described position limiting structure is the C type card that is clipped on the annular groove of piston rod.Can make the designs simplification of piston rod like this, help its processing, reduce cost.

The described liquid passage of crossing comprises centre bore, annular groove, end face groove and radial hole, centre bore is linked to be stepped by enlarged diameter section and reduced diameter section and runs through piston, reduced diameter section is connected between end face groove and the enlarged diameter section, end face groove is positioned on the end face of abuts against plunger bar and horizontal expansion, radial hole is connected between enlarged diameter section and the annular groove, also is embedded with split ring in the annular groove.

Described end cap inboard is formed with ring wall, and sealing ring is housed in the ring wall, and fairlead one end plug is gone into ring wall.

Described piston and cylinder bottom are respectively equipped with the bearing of laying spring.

The outer wall of described hydraulic cylinder is provided with convex tendon longitudinally.Convex tendon can be so that hydraulic cylinder combines tightr with the hole of ccontaining hydraulic cylinder.

It comprises that also one is used for fixing the installed part of hydraulic cylinder, and the main body of this installed part is a caulking groove, and hydraulic cylinder is stuck in the caulking groove, and caulking groove one end has the U-shaped mouth that passes for piston rod, and the both sides of caulking groove are provided with the mounting ear of band installing hole.

It also comprises a package cover, and an end of the shell-like main body of package cover has outward flange, has the ring-type convex tendon on the shell-like main body outer wall.

The utility model is simple and reasonable, and is easy to install, and cost is low, attractive in appearance.

(4) description of drawings

Fig. 1 is the structural representation of an embodiment of the present utility model;

Fig. 2 is the vertical view of Fig. 1, and Fig. 1 also is the A-A sectional view of Fig. 2;

Fig. 3 is the compressive state figure of Fig. 1;

Fig. 4 is the structural representation of another embodiment of the present utility model.

(5) specific embodiment

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

As Figure 1-3, a kind of door is taken out snubber, contains hydraulic cylinder 1, piston 2 and the piston rod 3 of damping liquid (for example oil) in it comprises.Piston 2 and piston rod 3 are metals.Hydraulic cylinder 1 one end openings and be furnished with end cap 4, hydraulic cylinder 1 and end cap 4 are made of plastics, and connect with ultrasonic bonding or adhering method.End cap 4 has fairlead 5, and end cap 4 inboards are formed with ring wall, and the sealing ring 6 of rubber is housed in the ring wall, and fairlead 5 one end plugs are gone into ring wall.Piston rod 3 runs through end cap 4 and fairlead 5, the outer end of piston rod 3 is equipped with elasticity and is ramed 7, the inner of piston rod 3 is provided with position limiting structure, and piston 2 and hydraulic cylinder are equipped with the spring 8 of piston 2 tops to piston rod 3 at 1 the end, and piston 2 is provided with the liquid passage excessively that connects the both sides cavity.

Described position limiting structure is the flange 26 that forms in piston rod 3 ends.

The described liquid passage of crossing comprises centre bore 21, annular groove 22, end face groove 23 and radial hole 24, centre bore 21 is linked to be stepped by enlarged diameter section and reduced diameter section and runs through piston 2, reduced diameter section is connected between end face groove 23 and the enlarged diameter section, end face groove 23 is positioned on the end face of abuts against plunger bar 3 and horizontal expansion, two radial holes 24 be distributed on the same diameter and be connected enlarged diameter section and annular groove 22 between, also be embedded with plastics split ring 9 in the annular groove 22.Plastics split ring 9 can be expanded under the pressure of damping liquid.

The described

piston

2 and 1 end of hydraulic cylinder, are respectively equipped with the bearing 25,11 of laying spring 8.

It comprises that also one is used for fixing the installed part 10 of hydraulic cylinder 1, and the main body of this installed part 10 is caulking grooves 12, and hydraulic cylinder 1 is stuck in the caulking groove 12, and caulking groove 1 one ends have the U-shaped mouth 13 that passes for piston rod 2, and the both sides of caulking groove 12 are provided with the mounting ear 15 of band installing hole 14.Hydraulic cylinder 1 can be fixed on doorframe, drawer etc. by installed part 10 locates.

As shown in Figure 4:

Door is taken out snubber and is also comprised a package cover 16, and an end of the shell-like main body of package cover 16 has outer ring edge 17, has three loop convex tendons 18 on the shell-like main body outer wall.The outer wall of described hydraulic cylinder 1 is provided with the convex tendon longitudinally 19 of three circumference in equal parts.Earlier hydraulic cylinder 1 is inserted doorframe, drawer etc. and locate in the installing hole 27, the convex tendon 19 of hydraulic cylinder can tightly choke hole wall and fix; Package cover 16 is filled in the aperture, package cover 16 contacts and jam-pack with hole wall by ring-type convex tendon 18 again, plays the effect of decorating installing hole 27.Described position limiting structure is the C type card 20 that is clipped on the annular groove of piston rod 3.(other structure is with reference to a last embodiment)

Claims

1, a kind of door is taken out snubber, it is characterized in that: hydraulic cylinder, piston and the piston rod of containing damping liquid in it comprises, hydraulic cylinder one end opening and be furnished with end cap, end cap has fairlead, piston rod runs through end cap and fairlead, and the outer end of piston rod is equipped with elasticity and is ramed, and the inner of piston rod is provided with position limiting structure, be equipped with between piston and the cylinder bottom the spring of piston top to piston rod, piston is provided with the liquid passage excessively that connects the both sides cavity.

2, door according to claim 1 is taken out snubber, and it is characterized in that: described position limiting structure is the flange that forms in piston-rod end.

3, door according to claim 1 is taken out snubber, it is characterized in that: described position limiting structure is the C type card that is clipped on the annular groove of piston rod.

4, door according to claim 1 is taken out snubber, it is characterized in that: the described liquid passage of crossing comprises centre bore, annular groove, end face groove and radial hole, centre bore is linked to be stepped by enlarged diameter section and reduced diameter section and runs through piston, reduced diameter section is connected between end face groove and the enlarged diameter section, end face groove is positioned on the end face of abuts against plunger bar and horizontal expansion, radial hole is connected between enlarged diameter section and the annular groove, also is embedded with split ring in the annular groove.

5, door according to claim 1 is taken out snubber, and it is characterized in that: described end cap inboard is formed with ring wall, and sealing ring is housed in the ring wall, and fairlead one end plug is gone into ring wall.

6, door according to claim 1 is taken out snubber, and it is characterized in that: described piston and cylinder bottom are respectively equipped with the bearing of laying spring.

7, door according to claim 1 is taken out snubber, and it is characterized in that: the outer wall of described hydraulic cylinder is provided with convex tendon longitudinally.

8, door according to claim 1 is taken out snubber, it is characterized in that: it comprises that also one is used for fixing the installed part of hydraulic cylinder, the main body of this installed part is a caulking groove, hydraulic cylinder is stuck in the caulking groove, caulking groove one end has the U-shaped mouth that passes for piston rod, and the both sides of caulking groove are provided with the mounting ear of band installing hole.

9, door according to claim 1 is taken out snubber, and it is characterized in that: it also comprises a package cover, and an end of the shell-like main body of package cover has outward flange, has the ring-type convex tendon on the shell-like main body outer wall.