CN2804490Y

CN2804490Y - Improved buffer structure

Info

Publication number: CN2804490Y
Application number: CN 200520025805
Authority: CN
Inventors: 施正彦
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-13
Filing date: 2005-05-13
Publication date: 2006-08-09
Anticipated expiration: 2015-05-13

Abstract

The utility model relates to an improved buffer structure, which comprises a piston rod and a body which is assembled with each other, wherein the piston rod is mainly provided with a rod body, a head part and a joint part, and the head part and the joint part are on both ends of the rod body; the jointing part is provided with a stopping assembly, and the rod body is provided with a stopping part at the part adjacent to the jointing part; a piston is arranged between the stopping part of the rod body and the stopping assembly; thus, when the piston rod is pressed, grease contained in the containing groove can flow along a gap between the piston and the containing groove; when the piston rod is reset due to the application of tensile force, the grease can flow towards the stopping assembly alone a gap between the piston and the rod body and the gap between piston and the containing groove to cause the piston rod to be quickly reset, and impact force can be effectively reduced.

Description

Improved buffer structure

Technical field

The utility model relates to a kind of buffer, relates in particular to a kind of improved buffer structure that can effectively lower impact force.

Background technique

As shown in Figure 5, be existing buffer, comprise: a sleeve 9, a piston rod 91, a loam cake 92, wherein this sleeve 9 is provided with a containing groove 93, these containing groove 93 inside are injected with grease, and this containing groove 93 is respectively equipped with the bottom land 932 of an opening 931 and a sealing at axial two ends, and this loam cake 92 has the portion of stretching into 921, and this loam cake 92 is covered on this opening 931 and stretches into the cell wall that portion 921 stretches into this containing groove 93 and this containing groove 93 with this and is the drive fit state.Be arranged in this loam cake 92 with this piston rod 91, and stretch into the inside of this containing groove 93, and this piston rod 91 is simultaneously to should containing groove 93 and wear the running direction of worker's type fixed block 94 with this piston rod 91 of correcting, and bottom land 932 that should containing groove 93 is provided with a piston 95, the intermediate portion of this piston 95 has axially provided a perforation 951, the both sides of this piston 95 are resisted against a spring 96 and this piston rod 91 respectively, and the end in addition of this spring 96 is resisted against the bottom land 932 of this containing groove 93.

When this piston rod 91 when stressed, it is that this piston 95 of compacting moves towards these spring 96 directions, and the grease pressurized between this piston 95 and bottom land 932 and the spaces that flow between this piston 95 and this loam cake 92 by this perforation 95 1, with buffer function power whereby.

When the strength that acts on this piston rod 91 disappears, this piston rod 91 moves away from these bottom land 932 directions because of the spring force that is subjected to this spring 96 oppositely promotes these piston rod 91 courts, and is just flowed between this piston 95 and this bottom land 932 by this perforation 951 along the opposite direction of these piston rod 91 pressurizeds at the grease in space between this piston 95 and the loam cake 92.

And in fact, the course of action of this piston rod 91 is because grease is to be come in and gone out by this perforation 951, then its alleged pooling feature is just had a greatly reduced quality when active force is excessive, in addition, this loam cake 92 be need be provided with this stretch into portion 921 and with the cell wall drive fit of this containing groove 93, so the grease of these containing groove 93 inside still has the possibility of oozing out.Moreover this existing technology must can reach the purpose that it is advocated by numerous assembly combinations, and swashs the related industry that is listed as day by day for competition now, and it must spend more raw materials cost on the implementation, causes many puzzlements for the user.

The model utility content

Technical problem underlying to be solved in the utility model is, overcomes the defective that existing buffer exists, and a kind of improved buffer structure is provided, and it can effectively lower impact force.

The technological scheme that its technical problem that solves the utility model adopts is:

A kind of improved buffer structure comprises: a body, and this body has a tube wall, and this tube wall surrounds and forms a containing groove, and this tube wall is axially to have a closed end and away from an opening of this closed end, this containing groove is for holding grease; One lid is to be covered on the opening of this body with the containing groove sealing with this body; One piston rod comprises a shaft, and the two ends of this shaft are respectively a head and a connecting part, this shaft this lid that stretches through, and this connecting part stretches the inside of establishing into this containing groove, and have a stopper part in the connecting part that is adjacent to this shaft; One piston is the inside of being located at this containing groove; One is located at the reset assembly of this containing groove, and this reset assembly has a first end and a second end, and this first end is the closed end that abuts against in this tube wall; It is characterized in that: also comprise: a barrier module is to be incorporated into this connecting part, and this barrier module has one first stopping surface and relative one second stopping surface of this first stopping surface, and this first stopping surface is the second end that abuts against this reset assembly; One leak-stopping assembly, it is to be arranged in this shaft and to be close to this lid with the sealing containing groove, overflows this opening to avoid the grease in the containing groove; This piston has one first supporting surface and one second supporting surface, and the lateral margin of adjacent this first supporting surface and this second supporting surface, this first supporting surface abuts against second stopping surface in this barrier module, this second supporting surface abuts against the protuberance in shaft, and this lateral margin is to forming the precision-fit setting by containing groove; And between this piston and this leak-stopping assembly elastic pad is set.

Aforesaid improved buffer structure, wherein elastic pad is to be arranged in this shaft.

Aforesaid improved buffer structure, wherein reset assembly is a pressure spring.

Aforesaid improved buffer structure, wherein the leak-stopping assembly is an oil sealing.

Aforesaid improved buffer structure, wherein a fixed block is installed in the connecting part of shaft, and this barrier module is slidedly arranged on this shaft.

The utility model can effectively lower impact force.

Description of drawings

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

Fig. 1 is an exploded perspective schematic representation of the present utility model

Fig. 2 is one of movement structure schematic representation of the present utility model

Fig. 3 is two of a movement structure schematic representation of the present utility model

Fig. 4 is an enforcement state three-dimensional appearance schematic representation of the present utility model

Fig. 5 is the schematic representation of existing buffer structure

The number in the figure explanation:

Body 1 tube wall 11

Closed end 111 openings 112

Containing groove 12 internal surfaces 13

Outer surface 14 lids 2

Piston rod 3 shafts 31

Stopper part 311 heads 32

Connecting part 33 reset assemblies 4

First end 41 the second ends 42

Barrier module 5 fixed blocks 51

Second stopping surface, 53 leak-stopping assemblies 6

Piston 7 first supporting surfaces 71

Lateral margin 73 elastic pads 74

Embodiment

Seeing also Fig. 1 to Fig. 2, is the selected example structure of the utility model shown in the figure,

The buffer structure of present embodiment, it comprises:

One body 1, this body 1 has a tube wall 11, this tube wall 11 surrounds and forms a containing groove 12, this tube wall 11 is axially to have a closed end 111, reach a opening 112 away from this closed end 111, this containing groove 12 can be for holding the grease (not shown), and this tube wall 11 has an internal surface 13 and an outer surface 14 that should containing groove 12.

One lid 2 is to be covered on the opening 112 of this body 1 with containing groove 12 sealings with this body 1.

One piston rod 3, this piston rod 3 comprises a shaft 31, and the two ends of this shaft 31 are respectively a head 32 and a connecting part 33, this shaft 31 this lid 2 that stretched through, and this connecting part 33 is to stretch the inside of establishing into this containing groove 12, and has a stopper part 311 in the connecting part 33 of contiguous this shaft 31.

One is located at the reset assembly 4 of this containing groove 12, and in the present embodiment, this reset assembly 4 is a pressure spring, and this reset assembly 4 has a first end 41 and a second end 42, and wherein this first end 41 is to abut against in the closed end 111 of this tube wall 11.

One barrier module 5, be to be incorporated into this connecting part 33, this connecting part 33 installings one fixed block 51, so that this barrier module 5 is slidedly arranged on this shaft 31, and this barrier module 5 has one second stopping surface 53 of one first stopping surface 52 and relative this first stopping surface 52, and this first stopping surface 52 is the second ends 42 that abut against this reset assembly 4.

One leak-stopping assembly 6, in the present embodiment, this leak-stopping assembly 6 is an oil sealing, it is to be arranged in this shaft 31 and contiguous this lid 2 avoids grease to overflow with these openings 112 that seal in this containing groove 12.

One piston 7, be the inside of being located at this containing groove 12, this piston 7 has one first supporting surface 71 and one second supporting surface 72, and the lateral margin 73 of adjacent this first supporting surface 71 and this second supporting surface 72, this first supporting surface 71 is second stopping surfaces 53 that abut against in this barrier module 5, this second supporting surface 73 is the stopper parts 311 that abut against in this shaft 31, and this lateral margin 73 is that internal surface 13 that should containing groove 12 is formed the precision-fit setting.And between this piston 7 and this leak-stopping assembly 6 elastic pad 73 is set, this elastic pad 74 is to be arranged in this shaft 31.

See also Fig. 2 to Fig. 4, it is the buffer that the utility model is applied to a

cabinet

81 and 8; Wherein this cabinet 81 has an open opening port 811, and a wherein side of contiguous this opening port 811 is pivoted one 8, and is equiped with this 8 opening/closing mechanism of closing 82 of control, and buffer of the present utility model is the same side that is installed in this opening/closing mechanism 82.Therefore when these opening/closing mechanism 82 these doors 8 of control are closed, this 8 can this piston rod 3 of compacting head 32, the connecting part 33 of this piston rod 3 then interlock piston 7 is moved and is suppressed reset assembly 4 and make its compression towards the closed end 111 of this body 1.

And define one first space 121 with the closed end 111 of this body 1 and the internal surface 13 of this containing groove 12 by first supporting surface 71 of this piston 7; And second supporting surface 72 with this piston 7 defines one second space 122 with the lid 2 of this body 1 and the internal surface 13 of this containing groove 12.

When this piston rod 3 during at pressurized, these containing groove 12 inner stored greases are to flow into this second space 122 by this first space 121 between the internal surface 13 of this piston 7 and this containing groove 12, and when pulling the door open 8 when making this piston rod 3 remove press powers, then this piston rod 3 pushes to this lid 2 directions because of the spring force acting in opposition that is subjected to this reset assembly 4, the stored grease in space 122 this moment second and follow piston 7 and the shaft 31 of piston rod 3 between the

gap

75 and 13 of the internal surfaces of this piston 7 and this containing groove 12 and flow into this first space 121.

Therefore, when the head 32 of this piston rod 3 is subjected to press power, grease is to be subjected to bigger resistance, and make buffer body 1 have good buffer capacity, and when removing press power, the runner of grease is by mobile between 13 of the internal surfaces of piston 7 and this containing groove 12 and piston rod 3 and the shaft 31, and flows into first space 121 by second space 122, and can be resetted by this reset assembly 4 fast.

And leak-stopping assembly 6 of the present utility model mainly is to be located at this containing groove 12 inside, combines closely and be with the internal surface 13 of this tube wall 11, and can effectively prevent the grease overflow.

So the utility model not only can reduce impact force effectively, and resets this piston rod 3 fast, and this leak-stopping assembly 6 more can be guaranteed the leakproof for grease, and the good competitive ability that reaches commercial and make with the structure of simplifying.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

In sum, the utility model is on structural design, use practicability and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicability, the regulation that meets relevant novel patent requirement is so mention application in accordance with the law.

Claims

1. improved buffer structure comprises:

One body, this body has a tube wall, and this tube wall surrounds and forms a containing groove, and this tube wall is axially to have a closed end and away from an opening of this closed end, this containing groove is for holding grease;

One lid is to be covered on the opening of this body with the containing groove sealing with this body;

One piston rod comprises a shaft, and the two ends of this shaft are respectively a head and a connecting part, this shaft this lid that stretches through, and this connecting part stretches the inside of establishing into this containing groove, and have a stopper part in the connecting part that is adjacent to this shaft;

One piston is the inside of being located at this containing groove;

One is located at the reset assembly of this containing groove, and this reset assembly has a first end and a second end, and this first end is the closed end that abuts against in this tube wall;

It is characterized in that:

Also comprise:

One barrier module is to be incorporated into this connecting part, and this barrier module has one first stopping surface and relative one second stopping surface of this first stopping surface, and this first stopping surface is the second end that abuts against this reset assembly;

One leak-stopping assembly, it is to be arranged in this shaft and to be close to this lid with the sealing containing groove, overflows this opening to avoid the grease in the containing groove;

This piston has one first supporting surface and one second supporting surface, and the lateral margin of adjacent this first supporting surface and this second supporting surface, this first supporting surface abuts against second stopping surface in this barrier module, this second supporting surface abuts against the protuberance in shaft, and this lateral margin is to should containing groove and be equipped with; And between this piston and this leak-stopping assembly elastic pad is set.

2. improved buffer structure according to claim 1 is characterized in that described elastic pad is to be arranged in this shaft.

3. improved buffer structure according to claim 1 is characterized in that described reset assembly is a pressure spring.

4. improved buffer structure according to claim 1 is characterized in that described leak-stopping assembly is an oil sealing.

5. improved buffer structure according to claim 1 is characterized in that a fixed block is installed in the connecting part of described shaft, and this barrier module is slidedly arranged on this shaft.