CN203770657U - Sealing device - Google Patents
Sealing device Download PDFInfo
- Publication number
- CN203770657U CN203770657U CN201420149242.2U CN201420149242U CN203770657U CN 203770657 U CN203770657 U CN 203770657U CN 201420149242 U CN201420149242 U CN 201420149242U CN 203770657 U CN203770657 U CN 203770657U
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- CN
- China
- Prior art keywords
- outer sleeve
- sealing cover
- inner sleeve
- sleeve
- cavity
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- Withdrawn - After Issue
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Abstract
The utility model discloses a sealing device. The sealing device comprises an outer sleeve and an inner sleeve, the outer sleeve externally sleeves the inner sleeve and is capable of sliding relative to the inner sleeve, a gap is reserved between a middle section of the inner wall of the outer sleeve and the outer wall of the inner sleeve to form a cavity including a left section and a right section, the walls, corresponding to the left section and the right section of the cavity, of the outer sleeve are provided with holes respectively, and the holes are used for feeding or discharging of media; when the outer sleeve slides towards one side relative to the inner sleeve, the volume of the cavity on the other side can be decreased gradually, and sealing devices are arranged on portions, contacting with the inner sleeve, of two ends of the outer sleeve respectively. When a medium is filled into the cavity on one side but not filled into the cavity on the other side, the outer sleeve can be pushed under the pressure difference of the two sides to move towards the side with the medium; when the cavity is filled with enough medium, the outer sleeve can be in close butt joint with other articles under the action of pressure, no gap is reserved, and a certain pressure can be borne, so that dust in materials is prevented from being discharged from joints. The sealing device has the advantages that a favorable environment can be guaranteed beneficially, physical health of workers is benefited, and material loss can be reduced.
Description
Technical field
The utility model relates to seal arrangement technical field, particularly relates to a kind of seal arrangement that is applicable to easily to produce the material running place of airborne dust.
Background technique
In plant produced operation process, often there is material to be discharged on means of transportation from one, then transport next place to.In some material, include dust granules, easily produce like this airborne dust in shipment, befouling environment, brings very major injury to staff's health.In order reducing, to pollute and to healthy infringement, what have is designed to closure by transport vehicle, to output hole above and dock with material discharge conduit, operation is loaded and transported in realization.This mode has greatly reduced the generation of airborne dust.But at transport vehicle and material discharge conduit joint, still there is space to exist, still have part airborne dust to blow out from gap, produce harm.In prior art, even if having transport vehicle and material discharge conduit to seal the pneumatic device docking, will make could realize after discharge conduit change direction, and sealing effect is not fine yet.Usually with a period of time, will occur to leak and befouling environment.And this sealing docking mode requires relatively row's open height otherwise can directly have influence on the dressing amount of carrying of transport vehicle, and then the transportation number of times of increase equal parts material transport vehicle, increase personnel workload, has also increased unsafe factor simultaneously, to safety in production, brings hidden danger.In prior art, another kind of mode is the discharge tube direction that postpones, and relies on two flanges to lean on 6 to 8 even more bolts manually fastening, realizes the mode of sealing docking.The problem that this mode exists is that counterpart speed is slow, higher to staff's quantity, muscle power and technical requirements, and has certain danger, unfavorable to keeping the safety in production.And sealability is poor.In sum, for above-mentioned Workplace need a kind of safe, quick, simple to operate, need artificial less and can make to transport number of times and reach minimum seal arrangement as far as possible.
Summary of the invention
Technical problem to be solved in the utility model is a kind of seal arrangement designing for above-mentioned problems of the prior art, and this seal arrangement is arranged on material discharge conduit and transport vehicle joint.Seal arrangement is comprised of outer sleeve and inner sleeve that can relative sliding, and the intermediate section between outer sleeve and inner sleeve has respectively two cavitys.In cavity, can pass into high-pressure medium or discharge medium, a side cavity is filled with medium, and the medium in opposite side cavity is just discharged from, thereby produces pressure difference, and the relative inner sleeve of outer sleeve is slided.When needs are realized sealing, in the cavity of sealed sides, be filled with abundant medium, the perforate of the locking flange of seal arrangement and loader transporter is compressed, so just can avoid airborne dust to blow out.Thereby the environmental quality in assurance manufacturing shop, protection producers, also can reduce material loss.
The utility model requires the technical problem solving to be achieved through the following technical solutions:
A kind of seal arrangement, comprise outer sleeve and inner sleeve, described outer sleeve is enclosed within inner sleeve outside, and inner sleeve is done relative sliding relatively, described outer sleeve inwall intermediate section and inner sleeve outer wall have space and form left and right two airtight cavities, in outer sleeve wall corresponding to described left and right two sections of cavitys, respectively have a hole, for being filled with or discharging medium; When the relative inner sleeve of outer sleeve is during to a Slideslip, the cavity volume of opposite side can reduce gradually, and described outer sleeve two ends have the segment section contacting to be equipped with sealing with inner sleeve.
In the middle of described inner sleeve outer wall, there is a protruding structure, described protruding structure is divided into a left side by the cavity between outer sleeve and inner sleeve, right two sections, on described protruding structure, be provided with seal arrangement with outer sleeve contacting point, described outer sleeve comprises the front sealing cover that is positioned at two ends, rear sealing cover and be connected to before, supporting drum between rear sealing cover, described front sealing cover, supporting drum and rear sealing cover be three independently part or described front sealing cover and supporting drum to be integrated then sealing cover be that independent separate body or described rear sealing cover and supporting drum are integrated and front sealing cover is independent separate body, described front sealing cover, supporting drum and rear sealing cover are connected to an integral body successively.
Described front sealing cover, supporting drum and rear sealing cover are connected to an integral body by wire rod thread mode or cassette or locking hood type.
In the middle of described outer sleeve inwall, have a protruding structure, this protruding structure is divided into two sections of left and right by the cavity between outer sleeve and inner sleeve, on described protruding structure, is provided with sealing with inner sleeve contacting point.
On described protruding structure, be sealed into arranged side by side two in left and right, described two are sealed into Stamping Steel Ribbon, are also provided with back-up ring on described protruding structure in the middle of two sealings.
The sealing at place, described outer sleeve two ends is twice, inner side be polytetrafluoroethylsealed sealed together, outside be outside framework oil seal together.
Owing to having adopted as above technological scheme, the utlity model has following features:
In material shipment, do not have airborne dust and blow out, be conducive to guarantee good environment, be conducive to staff healthy.And seal arrangement automatic-sealed, reduces labor intensity.Also can reduce material loss, farthest load and transported material, raise labour efficiency.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model outer sleeve structure schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, the utility model comprises outer sleeve 1, inner sleeve 2, and outer sleeve 1 is enclosed within inner sleeve 2 outsides, and outer sleeve 1 can relative sliding with inner sleeve 2.2 of outer sleeve 1 intermediate portion and inner sleeves have space to form cavity 3.In the middle of inner sleeve 2, be provided with protruding structure 21, protruding structure 21 is divided into left cavity 31 and right cavity 32 by cavity 3.On the outer sleeve of left cavity 31 and right cavity 32 correspondences, have the first hole 41 and the second hole 42.For turn left respectively cavity 31 and right cavity 32, be filled with or discharge medium.There are left Stamping Steel Ribbon 51 and right Stamping Steel Ribbon 52 in the part place contacting with outer sleeve on protruding structure 21; In the middle of two Stamping Steel Ribbons, be provided with back-up ring 6.Outer sleeve 1 two ends place all arranges two seals device, inner side be all polytetrafluoroethylsealed sealed 71 together, outside are all outside framework oil seals 72 together.
As shown in Figure 2, outer sleeve 1 comprises front sealing cover 11, supporting drum 12 and the rear sealing cover 13 connecting successively.Front sealing cover 11, supporting drum 12 and rear sealing cover 13 pass through screw thread or cassette or locking hood type and connect as a whole.
Protruding structure 21 is arranged on inner sleeve 2, and outer sleeve 1 can be three stage structure like this, can be also front sealing cover 11 or rear sealing cover 13 both one of with middle supporting drum 12 be an integral body, corresponding after sealing cover 13 or front sealing cover 11 are independent separate bodies.Protruding structure 21 also can be arranged on outer sleeve 1, and like this, outer sleeve 1 can also be an overall structure.
Left Stamping Steel Ribbon 51, right Stamping Steel Ribbon 52, polytetrafluoroethylsealed sealed 71, outside framework oil seal 72 have guaranteed that left cavity 31 and right cavity 32 enough seal, and are easy to mineralization pressure.
When turn left by the first hole 41 interior fill gas of cavity 31 or oily medium, in right cavity 32, be not filled with medium.Left like this cavity 31 and right cavity 32 just have pressure difference, and this pressure difference can promote the relative inner sleeve 2 of outer sleeve 1 and be moved to the left.Otherwise, in the cavity 32 of turning right by the second hole 42, be filled with medium, meanwhile, by the first hole 41, discharge the interior medium of left cavity 31, the relative inner sleeve 2 of outer sleeve 1 meeting is cavity 32 side shiftings to the right.When being filled with abundant medium; the pressure difference forming can tightly be pressed in the rear sealing cover 13 of outer sleeve 1 on the interface of material loading wagon; make the joint of seal arrangement and transfer cart almost there is no gap; dust in material can be blown out from joint hardly like this; thereby minimizing environmental pollution, is conducive to protect that staff's is healthy.Also can reduce the loss of material.Otherwise, in the cavity 31 of turning left by the first hole 41, be filled with medium, by the second hole 42, discharge the medium in right cavity 32, outer sleeve 1 can relative to inner sleeve 2 left cavity 31 directions move, rear sealing cover 13 unclamps, seal process finishes.
More than show and described basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; under the prerequisite that does not depart from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. a seal arrangement, it is characterized in that, comprise outer sleeve and inner sleeve, described outer sleeve is enclosed within inner sleeve outside, and inner sleeve is done relative sliding relatively, described outer sleeve inwall intermediate section and inner sleeve outer wall have space and form left and right two airtight cavities, respectively have a hole, for being filled with or discharging medium in outer sleeve wall corresponding to described left and right two sections of cavitys; When the relative inner sleeve of outer sleeve is during to a Slideslip, the cavity volume of opposite side can reduce gradually, and described outer sleeve two ends have the segment section contacting to be equipped with sealing with inner sleeve.
2. a kind of seal arrangement as claimed in claim 1, it is characterized in that, in the middle of described inner sleeve outer wall, there is a protruding structure, described protruding structure is divided into a left side by the cavity between outer sleeve and inner sleeve, right two sections, on described protruding structure, be provided with seal arrangement with outer sleeve contacting point, described outer sleeve comprises the front sealing cover that is positioned at two ends, rear sealing cover and be connected to before, supporting drum between rear sealing cover, described front sealing cover, supporting drum and rear sealing cover be three independently part or described front sealing cover and supporting drum to be integrated then sealing cover be that independent separate body or described rear sealing cover and supporting drum are integrated and front sealing cover is independent separate body, described front sealing cover, supporting drum and rear sealing cover are connected to an integral body successively.
3. a kind of seal arrangement as claimed in claim 2, is characterized in that, described front sealing cover, supporting drum and rear sealing cover are connected to an integral body by wire rod thread mode or cassette or locking hood type.
4. a kind of seal arrangement as claimed in claim 1, is characterized in that, has a protruding structure in the middle of described outer sleeve inwall, and this protruding structure is divided into two sections of left and right by the cavity between outer sleeve and inner sleeve, on described protruding structure, is provided with sealing with inner sleeve contacting point.
5. a kind of seal arrangement as described in claim 2,3 or 4, is characterized in that, on described protruding structure, is sealed into arranged side by side two in left and right, and described two are sealed into Stamping Steel Ribbon, are also provided with back-up ring on described protruding structure in the middle of two sealings.
6. a kind of seal arrangement as described in claim 1,2,3 or 4, is characterized in that, the sealing at place, described outer sleeve two ends is twice, inner side be polytetrafluoroethylsealed sealed together, outside be outside framework oil seal together.
7. a kind of seal arrangement as claimed in claim 5, is characterized in that, the seal arrangement at place, described outer sleeve two ends is twice, inner side be polytetrafluoroethylsealed sealed together, outside be outside framework oil seal together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149242.2U CN203770657U (en) | 2014-03-28 | 2014-03-28 | Sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149242.2U CN203770657U (en) | 2014-03-28 | 2014-03-28 | Sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770657U true CN203770657U (en) | 2014-08-13 |
Family
ID=51287848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420149242.2U Withdrawn - After Issue CN203770657U (en) | 2014-03-28 | 2014-03-28 | Sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770657U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883737A (en) * | 2014-03-28 | 2014-06-25 | 上海德干重型机器有限公司 | Sealing device |
-
2014
- 2014-03-28 CN CN201420149242.2U patent/CN203770657U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883737A (en) * | 2014-03-28 | 2014-06-25 | 上海德干重型机器有限公司 | Sealing device |
| CN103883737B (en) * | 2014-03-28 | 2016-04-13 | 上海德干重型机器有限公司 | Seal arrangement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Han Libin Inventor after: Zhang Suhua Inventor before: Han Bin Inventor before: Zhang Suhua |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: HAN BIN ZHANG SUHUA TO: HAN LIBIN ZHANG SUHUA |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140813 Effective date of abandoning: 20160413 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |