CN205841371U

CN205841371U - A kind of hydraulic cylinder dust guard

Info

Publication number: CN205841371U
Application number: CN201620802175.9U
Authority: CN
Inventors: 张猛
Original assignee: Laiwu Iron And Steel Trumpjet Hydraulic Machinery Co
Current assignee: Laiwu Iron And Steel Trumpjet Hydraulic Machinery Co
Priority date: 2016-07-28
Filing date: 2016-07-28
Publication date: 2016-12-28
Anticipated expiration: 2026-07-28

Abstract

This utility model relates to a kind of hydraulic cylinder dust guard, and the circle dust cover being arranged in cylinder head outer rim including one end, the described dust cover other end is connected with the device activity withstood on above piston rod；It is characterized in that: also include the ring annular groove being arranged on cylinder head inner edge and the circle ring pipe being arranged on cannelure notch, air inlet and multiple first gas outlet are set on described ring pipe, multiple passage is also set up on ring pipe, cannelure is connected by passage with ring pipe, on cylinder head inwall between dust ring and sealing ring, the second gas outlet is set, second gas outlet connects with cannelure, passage, the first gas outlet and the second gas outlet are all correspondingly arranged, and described air inlet is connected with external gas source equipment by the first air inlet pipe.There is good dustproof effect, the feature of hydraulic cylinder length in service life compared with prior art.

Description

A kind of hydraulic cylinder dust guard

Technical field

This utility model relates to the dust-proof field of hydraulic cylinder, specifically a kind of hydraulic cylinder dust guard.

Background technology

At present, section hydraulic cylinder uses position crucial and uses environmental abnormality severe, is with outward a large amount of dust, iron scale Constantly it is scattered, and hydraulic cylinder body also needs to the cooling of uninterrupted trickle, so cylinder body is peripheral dust-proof and waterproof extremely important, one Denier dust cover or dust ring damage, and outside water and foreign body easily enter cylinder interior accumulation, cause cylinder body to get rusty, piston rod And the phenomenon such as inner wall of cylinder scuffing, it is greatly shortened the service life of hydraulic cylinder.

Utility model content

The utility model proposes a kind of hydraulic cylinder dust guard.

The technical solution of the utility model is achieved in that a kind of hydraulic cylinder dust guard, is arranged on cylinder including one end Head outer rim on one circle dust cover, the described dust cover other end is connected with the device activity withstood on above piston rod, piston rod and Dust cover forms an annulus；It is characterized in that: also include the ring annular groove being arranged on cylinder head inner edge and be arranged on ring A circle ring pipe on shape groove notch, described ring pipe arranges air inlet and multiple first gas outlet, ring pipe also sets up Multiple passages, cannelure is connected by passage with ring pipe, and the cylinder head inwall between dust ring and sealing ring arranges second Gas outlet, the second gas outlet connects with cannelure, and passage, the first gas outlet and the second gas outlet are all correspondingly arranged, described in enter QI KOU is connected with external gas source equipment by the first air inlet pipe.

As preferred technical scheme, the first described air inlet pipe is rubber tube.

As preferred technical scheme, described external gas source equipment is constant low-pressure gas source equipment.

As preferred technical scheme, described ring pipe is divided into four sections, and the two ends of every section of ring pipe seal, and is positioned at every Cannelure below section ring pipe is correspondingly formed a single closing cell body, and every section of ring pipe is given vent to anger for the most uniform 6 first Mouth and passage, described second gas outlet is also correspondingly arranged 6, and every section of ring pipe is all separately provided air inlet, each air inlet Mouth individually connects first air inlet pipe.

As preferred technical scheme, described dust cover is canvas material.

As between annulus and external gas source equipment that preferred technical scheme, described piston rod and dust cover are formed Connected by multiple second air inlet pipe.

Owing to have employed technique scheme, this utility model has a beneficial effect highlighted below:

1, simple in construction, low cost of manufacture, it is possible to effective dustproof effect that hydraulic cylinder is played, good dustproof effect, significantly Extend the service life of hydraulic cylinder, reduce hydraulic cylinder maintenance frequency, it is simple to promotion and application.

2, the gas in ring pipe is divided into two-way, and a road gas is expelled directly out by the first gas outlet, enter piston rod with In space between dust cover, dust cover is slightly blown afloat to swelling state by gas, prevents dust, iron scale etc. from depending on and amasss Tire out on dust cover outer surface, thus extend dust cover service life, strengthen dust-proof effect；Another road gas enters through passage Cannelure, when dust ring form changes or damages, this road gas is discharged through the second gas outlet, with the first gas outlet row The gas gone out converges, and so can effectively prevent extraneous water or relatively fine-powder from entering inside hydraulic cylinder, play dust ring The effect that auxiliary is supported.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only It is embodiments more of the present utility model, for those of ordinary skill in the art, before not paying creative work Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is this utility model plan structure schematic diagram.

Fig. 2 is this utility model longitudinal direction section view partial structurtes schematic diagram.

Fig. 3 is the structure for amplifying schematic diagram of A in Fig. 2.

In figure: 1-cylinder head；2-dust cover；3-cannelure；4-ring pipe；5-air inlet；6-the first gas outlet；7-ventilates Hole；8-dust ring；9-sealing ring；10-the second gas outlet；11-equipment；12-piston rod.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The every other embodiment obtained, broadly falls into the scope of this utility model protection.

As shown in Figure 1, 2, this utility model includes a circle dust cover 2 that one end is arranged in cylinder head 1 outer rim, is arranged on cylinder A ring annular groove 3 on 1 inner edge and the circle ring pipe 4 being arranged on cannelure 3 notch, in order to by cylinder head 1 and cannelure 3, the position relationship between ring pipe 4 represents clear, and dust cover 2 does not indicates in FIG.As shown in Figure 1, 2, 3, described ring pipe Arranging air inlet 5 and multiple first gas outlet 6 on 4, ring pipe 4 also sets up multiple passage 7, passage 7 is by cannelure 3 He Ring pipe 4 connects, and cylinder head 1 inwall between dust ring 8 and sealing ring 9 arranges the second gas outlet 10, the second gas outlet 10 with Cannelure 3 connects, and passage the 7, first gas outlet 6 and the second gas outlet 10 are all correspondingly arranged, and i.e. one the first gas outlet 6 is corresponding One passage 7 and second gas outlet 10.Described air inlet 5 is connected with external gas source equipment by the first air inlet pipe, institute The first air inlet pipe stated is rubber tube, and described external gas source equipment is constant low-pressure gas source equipment.

In order to prevent air pressure not enough, described ring pipe 4 is divided into four sections, and the two ends of every section of ring pipe 4 seal, and is positioned at every Cannelure 3 below section ring pipe 4 is correspondingly formed a single closing cell body.On every section of ring pipe 4, the most uniform 6 first go out QI KOU 6 and passage 7, described second gas outlet 10 is also correspondingly arranged 6, every section of ring pipe 4 is all separately provided air inlet 5, Each air inlet 5 individually connects first air inlet pipe.

Described dust cover 2 other end is flexibly connected with the equipment 11 withstood on above piston rod 12, such piston rod 12 with Dust cover 2 forms an annulus, and described dust cover 2 is canvas material, has certain breathability.Described annulus is with outer Connect and connected by multiple second air inlet pipe between air machinery.In prioritization scheme, the quantity of described second air inlet pipe is two.Logical Cross the second air inlet pipe directly to inflate in annulus, it is ensured that dust cover 2 maintains the most stable filling State.

Time specifically used, the first air inlet pipe and the second air inlet pipe be connected with external gas source equipment respectively, enter into second Gas in air inlet pipe is directly inflated in annulus.The gas entered in the first air inlet pipe enters annular through air inlet 5 In pipe 4, the gas in ring pipe 4 is divided into two-way, and a road gas is expelled directly out by the first gas outlet 6, enter piston rod 12 with In annulus between dust cover 2, dust cover 2 is slightly blown afloat to swelling state by gas, prevents dust, iron scale etc. from depending on Attached and be accumulated on dust cover 2 outer surface, thus extend dust cover 2 service life, strengthen dust-proof effect, owing to dust cover 2 has There is certain breathability, thus ensure that dust cover 2 maintains the most stable expanded state；Another road gas is through ventilation Hole 7 enters cannelure 3, and when dust ring 8 is in normal use form, now dust ring 8 can play the effect of closing, enters Gas in cannelure 3 also will not be discharged, when equipment 11 position withstood on above piston rod 12 is sent out by the second gas outlet 10 Raw skew, acts on dust ring 8 by piston rod 12, during so that dust ring 8 form changes or damages, and dust ring 8 Can lose partially enclosed effect, entering into the gas in cannelure 3 can be discharged, with the first gas outlet 6 by the second gas outlet 10 Expellant gas converges, and so can effectively prevent extraneous water or relatively fine-powder from entering inside hydraulic cylinder, to dust ring 8 The effect supported to auxiliary.

The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model Protection domain within.

Claims

1. a hydraulic cylinder dust guard, including one end be arranged in cylinder head outer rim one circle dust cover, described dust cover another End is connected with the device activity withstood on above piston rod, and piston rod and dust cover form an annulus；It is characterized in that: also wrap Include the ring annular groove being arranged on cylinder head inner edge and one be arranged on cannelure notch encloses ring pipe, described ring pipe sets Putting air inlet and multiple first gas outlet, ring pipe also sets up multiple passage, cannelure is connected by passage with ring pipe, Arranging the second gas outlet on cylinder head inwall between dust ring and sealing ring, the second gas outlet connects with cannelure, passage, One gas outlet and the second gas outlet are all correspondingly arranged, and described air inlet is connected with external gas source equipment by the first air inlet pipe.

2. according to a kind of hydraulic cylinder dust guard described in claim 1, it is characterised in that: the first described air inlet pipe is rubber Pipe.

3. according to a kind of hydraulic cylinder dust guard described in claim 1, it is characterised in that: described external gas source equipment is constant Low-pressure gas source equipment.

4. according to a kind of hydraulic cylinder dust guard described in claim 1, it is characterised in that: described ring pipe is divided into four Section, the two ends of every section of ring pipe seal, are positioned at the cannelure below every section of ring pipe and are correspondingly formed a single closing cell body, The most uniform 6 the first gas outlets and passage on every section of ring pipe, described second gas outlet is also correspondingly arranged 6, every section of annular Guan Shangjun is separately provided air inlet, and each air inlet individually connects first air inlet pipe.

5. according to a kind of hydraulic cylinder dust guard described in claim 1, it is characterised in that: described dust cover is canvas material.

6. according to a kind of hydraulic cylinder dust guard described in claim 1, it is characterised in that: the ring that piston rod is formed with dust cover Connected by multiple second air inlet pipe between shape space with external gas source equipment.