CN104653776B - Self-relieving sealing device and engineering machinery driving cabin - Google Patents
Self-relieving sealing device and engineering machinery driving cabin Download PDFInfo
- Publication number
- CN104653776B CN104653776B CN201510018344.XA CN201510018344A CN104653776B CN 104653776 B CN104653776 B CN 104653776B CN 201510018344 A CN201510018344 A CN 201510018344A CN 104653776 B CN104653776 B CN 104653776B
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- Prior art keywords
- tube
- cabin
- sealing device
- driver
- self
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/068—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing swelling under working conditions
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/16—Cabins, platforms, or the like, for drivers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Seal Device For Vehicle (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
Self-relieving sealing device and engineering machinery driving cabin.The present invention relates to sealing device, for solving existing driver's cabin without automatic decompression device and driver's cabin sealing device for wire through hole structure complexity, the shortcoming of poor universality, the present invention discloses self-relieving sealing device, including both ends open U-tube upward, liquid it is filled with in U-tube, pipeline in U-tube side connects the arm having opening upwards, and arm is positioned at below liquid levels, higher than the lowest part of U-tube with the junction of U-tube.The self-relieving sealing device of the present invention can be used for driver's cabin releasing pressure automatically and sealing, and connecting in U-tube during application has one end of arm to communicate with cabin interior, and the opening of other end and arm is positioned at outside driver's cabin.The present invention can self-relieving act on, and at the moment height duty pressure that the moment that driver's cabin is closed the door is indoor, eliminates the infringement therefore bringing human body tympanum；Can use as crossing linear sealing device, via can be accomplished to fully seal, and solves sealing difference and sealing Problem of Failure.
Description
Technical field
The present invention relates to a kind of sealing device, particularly relate to a kind of engineering machinery driving cabin that there is self-relieving sealing device and there is this sealing device.
Background technology
Along with the development of technology, in construction machinery product, the sealing of driver's cabin is become better and better.But in the driver's cabin field of hinged door, along with the raising of sealing performance, can cause cab door turn-off transient, indoor gas is compressed, it is impossible to drain in time and make the pressure of indoor generation moment increase phenomenon.This pressure high level can damage human body tympanum.
It addition, pilot pipe cable-through hole seal rubber grommet or the form of pressing plate of mostly using, the reason such as the form of rubber grommet can come off because of rubber vibration, fatigue cracking, ageing of rubber causes sealing effectiveness to lose efficacy, it is seen that this kind of mode poor reliability；When presser type seals, it will usually be provided with pilot pipe pipe clamp, the size of this pipe clamp, quantity can because of caliber in different product, the difference of pipe quantity and different, so poor universality, and the part related to is more, installs complicated.
Summary of the invention
It is an object of the invention to solve that existing driver's cabin is complicated without automatic decompression device and driver's cabin sealing device for wire through hole structure, the shortcoming of poor universality, it is provided that a kind of sealing device possessing releasing pressure automatically function and there is the engineering machinery driving cabin of this sealing device.
The present invention is that the technical scheme realizing its purpose is such that constructing a kind of self-relieving sealing device, including both ends open U-tube upward, liquid it is filled with in U-tube, pipeline in U-tube side connects the arm having opening upwards, arm is positioned at below described liquid levels, higher than the lowest part of described U-tube with the junction of U-tube.The self-relieving sealing device of the present invention can be used for sealing releasing pressure automatically and the sealing in space, such as releasing pressure automatically in driver's cabin and sealing, during the application of this sealing device, U-tube connects the one end having arm and communicates with sealing space, the other end of U-tube and the opening of arm are positioned at the outside sealing space, when the pressure sealed in space raises, outside opening end and the arm opening of the then U-tube of the liquid in U-tube move, when the liquid level in U-tube is less than time at a tube connection ports, air in U-tube advances to arm and overflows, realize the reduction of pressure in confined space, and when in confined space, pressure returns to normal, in U-tube, the liquid level at two ends returns to again level, realize sealing by the isolation of U-tube two ends.
In above-mentioned self-relieving sealing device, arm is variable diameters pipe, and the diameter of the upper tube of its opening is more than the diameter with the lower tube of U-tube junction, and the pipeline of this variable diameters is easy to gas and is overflowed from arm and do not take liquid out of.Variable diameters arm is ladder pipe, and the upper tube of major diameter is positioned at more than the liquid level of liquid with the junction of the lower tube of minor diameter.This stair-stepping variable diameters arm is easily manufactured, and the junction of the lower tube of the upper tube of major diameter and minor diameter is slightly above the liquid level of liquid simultaneously so that the adjustable height of U-tube two ends liquid level is the most reciprocity, easily realizes pressure release.Wherein the diameter of the lower tube of arm is less than the diameter of described U-tube.
The present invention is that another technical scheme realizing its goal of the invention is to provide a kind of engineering machinery driving cabin, it includes envelope, the most also include aforesaid self-relieving sealing device, in the U-tube of aforementioned seal device, the pipeline opening of connecting branch communicates with the box house of driver's cabin, and the pipeline of the other end of U-tube and the upper, open end of arm communicate outside driver's cabin envelope.In the present invention, when closing the door of driver's cabin, air in driver's cabin can pass through sealing device releasing pressure automatically, avoid causing driving room pressure too high and causing the discomfort of driver, sealing device again can be by driver's cabin and external environment simultaneously, avoid external noise and dust to enter into driver's cabin, affect the environment in driver's cabin.In the invention, it is equipped with in U-tube in driver's cabin envelope to the pipeline outside envelope, so that this sealing device not only acts as the effect of pressure release, also acts as the effect sealing wire-threading device simultaneously.
Compared with prior art, its advantage is the present invention:
1), self-relieving can act on, at the moment height duty pressure that the moment that confined space such as driver's cabin is closed the door is indoor, eliminate the infringement therefore bringing human body tympanum；
2) pressure-fired in U-tube two ends liquid level difference, can be utilized to determine driver's cabin;
3), can use as crossing linear sealing device, under the effect of liquid, this via can be accomplished to fully seal, and solves sealing difference and sealing Problem of Failure.
Accompanying drawing explanation
Fig. 1 is the structural representation of the self-relieving sealing device of the present invention；
Fig. 2 is the schematic diagram that the self-relieving sealing device of the present invention is installed on driver's cabin；
Fig. 3 is the state diagram during present invention self-relieving sealing device pressure release；
Fig. 4 is the state diagram during present invention self-relieving sealing device pressurize.
In figure: hinged door 1, cab floor 2, sealing device 3, U-tube 31, arm 33,；Liquid 32, pipeline 5, driver's cabin 6.
Detailed description of the invention
Specific embodiments is described below in conjunction with the accompanying drawings.
As shown in Figure 1, the present invention sends out sealing device 3 self-relieving and includes both ends open U-tube 31 upward, liquid 32 it is filled with in U-tube, pipeline in U-tube 31 side connects the arm 33 having opening upwards, arm 33 is positioned at below the liquid level of liquid 32, higher than the lowest part of U-tube 31 with the junction of U-tube 31.Arm 33 is variable diameters pipe, the diameter of the upper tube of its opening is more than the diameter with the lower tube of U-tube 31 junction, upper tube and lower tube constitute stair-stepping ladder pipe, and the upper tube of major diameter is positioned at more than the liquid level of liquid 32 with the junction of the lower tube of minor diameter.When this sealing device 3 is applied, U-tube 31 connects the one end having arm and communicates with sealing space, the other end of U-tube and the opening of arm are positioned at the outside sealing space, when the pressure sealed in space raises, outside opening end and the arm opening of the then U-tube of the liquid in U-tube move, when the liquid level in U-tube is less than time at a tube connection ports, air in U-tube advances to arm and overflows, as shown in Figure 3, realize the reduction of pressure in confined space, and when in confined space, pressure returns to normal, in U-tube, the liquid level at two ends returns to again level, realize sealing by the isolation of U-tube two ends.
As shown in Figure 2, engineering machinery driving cabin includes envelope, also include aforesaid self-relieving sealing device 3, this sealing device 3 is arranged on the lower section of driver's cabin, in its U-tube, the pipeline opening of connecting branch is fixed on cab floor 2 and communicates with the inside of driver's cabin, and the pipeline of the other end of U-tube 31 and the upper, open end of arm 33 communicate outside driver's cabin envelope.U-tube 31 has in driver's cabin through the pipeline outside driver's cabin.In the present invention, when closing the hinged door 1 of driver's cabin, air in driver's cabin 6 can pass through sealing device 3 releasing pressure automatically, avoid causing driving room pressure too high and causing the discomfort of driver, sealing device again can be by driver's cabin and external environment simultaneously, avoid external noise and dust to enter into driver's cabin, affect the environment in driver's cabin.In the invention, it is equipped with in U-tube in driver's cabin envelope to the pipeline outside envelope, so that this sealing device not only acts as the effect of pressure release, also acts as the effect sealing wire-threading device simultaneously.Simultaneously when in driver's cabin, supercharging equipment work makes room pressure be higher than outdoor, it is also possible to utilize difference in height D that two ends liquid level in U-tube is less to maintain and drive room pressure and be slightly above external pressure, as shown in Figure 4.
Claims (6)
1. a self-relieving sealing device, it is characterised in that include both ends open U-tube upward, fill in described U-tube
Having liquid, the pipeline in U-tube side connects the arm having opening upwards, and described arm is positioned at institute with the junction of U-tube
State below liquid levels, higher than the lowest part of described U-tube.
Self-relieving sealing device the most according to claim 1, it is characterised in that described arm is variable diameters pipe, its opening
The diameter of the upper tube of end is more than the diameter with the lower tube of U-tube junction.
Self-relieving sealing device the most according to claim 2, it is characterised in that described arm is ladder pipe, major diameter
Upper tube is positioned at more than the liquid level of described liquid with the junction of the lower tube of minor diameter.
4. according to the self-relieving sealing device described in Claims 2 or 3, it is characterised in that the diameter of described lower tube is less than institute
State the diameter of U-tube.
5. an engineering machinery driving cabin, including envelope, it is characterised in that also include according to any one of Claims 1-4 from
The sealing device of dynamic pressure release, in described U-tube, the pipeline opening of connecting branch communicates with the box house of driver's cabin, described
The pipeline of the opposite side of U-tube and the upper, open end of arm communicate outside driver's cabin envelope.
Engineering machinery driving cabin the most according to claim 5, it is characterised in that be equipped with from driver's cabin envelope in described U-tube
Interior to the pipeline outside envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018344.XA CN104653776B (en) | 2015-01-14 | 2015-01-14 | Self-relieving sealing device and engineering machinery driving cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510018344.XA CN104653776B (en) | 2015-01-14 | 2015-01-14 | Self-relieving sealing device and engineering machinery driving cabin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104653776A CN104653776A (en) | 2015-05-27 |
| CN104653776B true CN104653776B (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510018344.XA Active CN104653776B (en) | 2015-01-14 | 2015-01-14 | Self-relieving sealing device and engineering machinery driving cabin |
Country Status (1)
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| CN (1) | CN104653776B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01117236A (en) * | 1987-10-30 | 1989-05-10 | Toshiba Corp | Manufacture of fluorescent lamp |
| KR950007189B1 (en) * | 1993-05-25 | 1995-07-03 | 이완영 | Constant water level control method |
| CN2267421Y (en) * | 1996-05-03 | 1997-11-12 | 锡山市太湖高效茶炉厂 | Ambient pressure hot water and steam generating heater using oil as fuel |
| CN201103888Y (en) * | 2007-08-28 | 2008-08-20 | 陈韶英 | Atmospheric energy-saving steam generator |
| CN201575446U (en) * | 2009-10-27 | 2010-09-08 | 东莞市蓝威实业有限公司 | Energy-saving environmental-protection steam generator |
| CN203098988U (en) * | 2013-02-07 | 2013-07-31 | 烟台恒盾避险救援设备有限公司 | Self-lock type liquid-sealing one-way automatic decompression valve |
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2015
- 2015-01-14 CN CN201510018344.XA patent/CN104653776B/en active Active
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| CN104653776A (en) | 2015-05-27 |
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