CN204942559U - Hydraulic pipe line bleed valve - Google Patents
Hydraulic pipe line bleed valve Download PDFInfo
- Publication number
- CN204942559U CN204942559U CN201520692327.XU CN201520692327U CN204942559U CN 204942559 U CN204942559 U CN 204942559U CN 201520692327 U CN201520692327 U CN 201520692327U CN 204942559 U CN204942559 U CN 204942559U
- Authority
- CN
- China
- Prior art keywords
- screw thread
- valve
- valve body
- plunger
- bleed valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a kind of hydraulic pipe line bleed valve, comprises valve body and screw thread plunger, is provided with a screw thread valve pocket in described valve body, and described screw thread plunger is screwed in screw thread valve pocket, and valve body is provided with the air outlet hole be communicated with screw thread valve pocket; The upper end of described screw thread plunger is provided with hexagon head and exposes from valve body, and the lower end of screw thread plunger is provided with spool, and one section that described screw thread plunger exposes valve body is set with a locking nut.This device is at deflation course and can by tightening locking nut after finishing using, and make compress between locking nut and valve body and realize safety locking, this hydraulic pipe line bleed valve only comprises valve body, screw thread plunger and locking nut, and structure is simple, compact dimensions.
Description
Technical field
The utility model relates to a kind of hydraulic pipe line bleed valve, refer more particularly to the hydraulic pipe line bleed valve being installed on and hydraulic pipe line being got rid of entrained air in pipeline.
Background technique
Hydraulic system on boats and ships is commonly used for the powertrain system of the equipment such as anchor winch, thruster, hatch cover.Hydraulic pipe line can not have air to be mixed in normal operation, this is because the compressibility of air is very large, be about 10,000 times of oil, even if hydraulic system is containing a small amount of air, its impact is also very large.Be dissolved in the air in fluid, when low pressure area, will overflow from fluid, produce bubble, form hole; Arrived zone of high pressure, under the impact of high-voltage oil liquid, these bubbles can be crashed to pieces again very soon, are sharply compressed, and make to produce noise in system; Meanwhile, gas suddenly by compression time can release amount of heat, thus cause the local superheating of fluid, hydraulic element and fluid be damaged; The compressibility of air is large, hydraulic pressure installation also can be made to produce unstable, even cause the vibration of pipeline and equipment.Therefore in the design process of hydraulic pipe line, all to consider the venting function of hydraulic system.
Some adopts the bleed valve of screw column plug in the market, but screw column does not all arrange locking nut beyond the Great Wall to be loosened to prevent screw thread plunger, after bleed valve is tightened, due to the impact of high-voltage oil liquid or the vibrations of equipment, screw thread plunger can produce to loosen and cause hydraulic oil to be revealed, not only can contaminated equipment and environment, but also may damage equipment and operator.In addition, the bleed valve of current screw column plug is not arranged yet anticreep mark or disconnecting prevention structure prevent screw thread plunger to back-out too much, cause screw thread plunger to come off from bleed valve body.Personnel in system debug process, particularly in operating process, screw thread plunger is back-outed too much, after hydraulic system pressure rises, the risk that screw thread plunger can come off again, a large amount of fluid is caused to spray, not only can contaminated equipment and environment, but also may damage equipment and operator.
Many times discharge with bleed valve the air be mixed in hydraulic system in current design process, in order to install this bleed valve, need to arrange on pipeline one with the arm of pipeline connection.If bleed valve is flanged, then needs on arm, weld a flanged joint and match; If bleed valve is thread type, then need to weld a single-threaded joint to connect with bleed valve on arm.Above-mentioned mode, needs for bleed valve arranges separately an arm, then on arm, arranges flange or single screw thread joint, and then bleed valve being arranged on flanged joint or on single screw thread joint, Placement is complicated, and not only cost is high, and workload is large, takes up space also large.This will go to be avoided for Ship Design, construction enterprise as far as possible.
Model utility content
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, compact dimensions, can realize the hydraulic pipe line bleed valve of locking function, to overcome the above-mentioned defect of prior art.
In order to solve the problem, a kind of hydraulic pipe line bleed valve that the utility model provides adopts following technical proposals: a kind of hydraulic pipe line bleed valve, comprise: valve body and screw thread plunger, a screw thread valve pocket is provided with in described valve body, described screw thread plunger is screwed in screw thread valve pocket, and valve body is provided with the air outlet hole be communicated with screw thread valve pocket; The upper end of described screw thread plunger is provided with hexagon head and exposes from valve body, and the lower end of screw thread plunger is provided with spool, and one section that described screw thread plunger exposes valve body is set with a locking nut.
Further, the lower end of described valve body is welding ends, described welding ends is provided with the inlet hole be communicated with screw thread valve pocket, and the upper end of described inlet hole is provided with the valve seat matched with described spool.
Further, described valve seat and screw thread valve pocket are coaxially arranged.
Preferably, described spool is coniform, and described valve seat is one section of conical surface.
Further, the diameter of described welding ends is less than the diameter of valve body upper end, and described welding ends is provided with one section of tapering transition face.
Preferably, described screw column is provided with beyond the Great Wall and screws out mark.
Preferably, described back-out is labeled as an annular indentation.
Preferably, the both sides of described valve body are provided with relative spanner snap-latch surface.
Preferably, the distance between described spanner snap-latch surface is equal with the distance between the spanner snap-latch surface of described locking nut.
Based on above-mentioned the technical solution of the utility model, a kind of hydraulic pipe line bleed valve of the present utility model has following beneficial effect: this device can by tightening locking nut after deflation course and venting, make to realize safety locking between screw thread plunger and valve body, this hydraulic pipe line bleed valve only comprises valve body, screw thread plunger and locking nut, and structure is simple, compact dimensions.Further, screw column is provided with beyond the Great Wall and screws out mark, when carrying out bleed air operation, can prevent from too much being back-outed by screw thread plunger so that a large amount of fluid ejection.Further, the valve body of a kind of hydraulic pipe line bleed valve of the present utility model is provided with the welding ends for directly welding with pipeline, valve body directly can be welded on pipeline, without the need to arranging the transition structure that is connected with valve body on pipeline, structure simply, compact dimensions, to reduce costs.
Accompanying drawing explanation
Fig. 1 is the sectional view of a kind of hydraulic pipe line bleed valve of the present utility model and Pipe installing;
Fig. 2 is the sectional view of valve body;
Fig. 3 is the front view of screw thread plunger.
1, pipeline; 2, valve body; 21, inlet hole; 22, screw thread valve pocket;
23, air outlet hole; 24, valve seat; 25, mounting end; 26, welding ends;
27, tapering transition face; 28, cylinder locating face; 3, locking nut; 4, screw thread plunger;
41, annular indentation; 42, spool.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.These mode of executions only for illustration of the utility model, and are not limitation of the utility model.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
Fig. 1 is the sectional view of a kind of hydraulic pipe line bleed valve of the present utility model and Pipe installing, Fig. 2 is the sectional view of valve body, as depicted in figs. 1 and 2, high-voltage oil liquid is filled with in pipeline 1, in the low pressure area of pipeline 1, the air be dissolved in fluid will overflow from fluid, produce bubble, in order to these bubbles are discharged from pipeline 1, hydraulic pipe line bleed valve shown in Fig. 1 is installed at the top of pipeline 1, described hydraulic pipe line bleed valve, comprise valve body 2 and screw thread plunger 4, valve body 2 upper end is mounting end 25, from mounting end 25, a screw thread valve pocket 22 is set in valve body 2, screw thread plunger 4 is screwed in screw thread valve pocket 22, valve body 2 is provided with the air outlet hole 23 be communicated with screw thread valve pocket 22, air outlet hole 23 is in communication with the outside, valve body 2 is also provided with the inlet hole 21 be communicated with screw thread valve pocket 22, the inner space of inlet hole 21 and pipeline 1, the upper end of screw thread plunger 4 is provided with hexagon head and exposes from valve body 2, and the lower end of screw thread plunger 4 is provided with spool 42 (see Fig. 3), and one section that screw thread plunger 4 exposes valve body 2 is set with a locking nut 3.By threaded together plunger 4, inlet hole 21 can seal by the spool 42 of screw thread plunger 4 lower end; By unscrewing screw thread plunger 4, inlet hole 21 can be made to be communicated with screw thread valve pocket 22, air outlet hole 23, the bubble in pipeline 1 is discharged.Certainly, also can pass through simple Structural Transformation, valve body 2 is designed so that the spool 42 of screw thread plunger 4 seals the form of air outlet hole 23 to realize the break-make of hydraulic pipe line bleed valve.Open hydraulic pipe line bleed valve when being exhausted, first unclamp gland nut 3, then screw thread plunger 4 is upwards revolved, make spool 42 leave inlet hole 21 1 segment distance, then locking nut 3 is screwed down make screw thread plunger 4 and valve body 2 screw thread between compress and lock; When closing hydraulic pipe line bleed valve, first locking nut 3 is unclamped, then downward threaded together plunger 4, then locking nut 3 is tightened downwards, make to compress between the screw thread of screw thread plunger 4 and valve body 2 to lock.This hydraulic pipe line bleed valve only comprises valve body 2, screw thread plunger 4 and locking nut 3 three parts, and structure is simple, compact dimensions.
Can directly be connected with pipeline 1 to make hydraulic pipe line bleed valve of the present utility model, without the need to arranging transition structure on pipeline 1, as shown in Figure 2, the lower end of valve body can be set to welding ends 26, welding ends 26 directly welds with pipeline 1, inlet hole 21 is arranged on welding ends 26 and is communicated with screw thread valve pocket 22, and the upper end of inlet hole 21 is provided with the valve seat 24 matched with described spool 42.Spool 42 and the valve seat 24 of screw thread plunger 4 lower end are coaxially arranged, spool 42 can be cone shape, and correspondingly, the valve seat 24 coordinated with spool 42 is arranged to one section of conical surface, when screw thread plunger 4 is tightened, spool 42 and valve seat 24 are sealed and matched and hydraulic pipe line bleed valve cut out.The diameter of welding ends 26 is less than the diameter of valve body 2 upper end, welding ends 26 is provided with one section of tapering transition face 27, lower end, tapering transition face 27 is provided with cylinder locating face 28, pipeline 1 offers welding hole, welding hole also conically, make the cylinder locating face 28 of valve body 2 and the welding hole location fit on pipeline 1, between the tapering transition face 27 of valve body 2 and welding hole, form bevel for welding so that welding procedure.
When carrying out bleed air operation, in order to prevent too much being back-outed by screw thread plunger 4 so that a large amount of fluid ejection, can arrange on screw thread plunger 4 and screw out mark, as shown in Figure 3, screwing out mark can be an annular indentation 41.Annular indentation 41 apart from the distance d of mounting end 25 is, the size of d is arranged according to needing the length screwed out during bleed air operation, when bleed air operation, first locking nut 3 unclamped and upwards revolve certain distance, and then upwards revolve screw thread plunger 4, the side of the screw thread plunger 4 at visual mounting end 25 place, stops when annular indentation 41 exposes from mounting end 25 screwing out screw thread plunger 4, and can be screwed down by locking nut 3 again and be locked on valve body 2 screw thread plunger 4 to prevent screw column plug 4 from deviating from.When carrying out rotation process with spanner to locking nut 3 or screw thread plunger 4, can produce moment of torsion to valve body 2, valve body 2 and the weld of pipeline 1 may be made to produce slight crack for this so that fluid is revealed; In order to prevent the generation of this situation, relative spanner snap-latch surface (not shown in Fig. 2) can be set in the both sides of valve body 2, while operation is screwed to locking nut 3 or screw thread plunger 4, block the spanner snap-latch surface of valve body 2 with spanner to avoid producing moment of torsion in weld joint.For the ease of operation, reduce instrument specification kind, the distance distance between the spanner snap-latch surface on valve body 2 can be arranged between the spanner snap-latch surface of locking nut 3 is equal.
Based on above-mentioned embodiment, this device is at deflation course and can by tightening locking nut after finishing using, make compress between locking nut and valve body and realize safety locking, this hydraulic pipe line bleed valve only comprises valve body, screw thread plunger and locking nut, and structure is simple, compact dimensions.Further, screw column is provided with beyond the Great Wall and screws out mark, when carrying out bleed air operation, can prevent from too much being back-outed by screw thread plunger so that a large amount of fluid ejection.Further, the valve body connecting end of a kind of hydraulic pipe line bleed valve of the present utility model is provided with the welding ends for directly welding with pipeline, valve body directly can be welded on pipeline, without the need to arranging the transition structure that is connected with valve body on pipeline, structure simply, compact dimensions, to reduce costs.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and replacement, these improve and replace and also should be considered as protection domain of the present utility model.
Claims (9)
1. a hydraulic pipe line bleed valve, comprise: valve body (2) and screw thread plunger (4), it is characterized in that: in valve body (2), be provided with a screw thread valve pocket (22), described screw thread plunger (4) is screwed in screw thread valve pocket (22), and valve body (2) is provided with the air outlet hole (23) be communicated with screw thread valve pocket (22); The upper end of described screw thread plunger (4) is provided with hexagon head and exposes from valve body (2), and the lower end of screw thread plunger (4) is provided with spool (42),
One section that described screw thread plunger (4) exposes valve body (2) is set with a locking nut (3).
2. bleed valve as claimed in claim 1, is characterized in that:
The lower end of described valve body (2) is welding ends (26), described welding ends (26) is provided with the inlet hole (21) be communicated with screw thread valve pocket (22), the upper end of described inlet hole (21) is provided with the valve seat (24) matched with described spool (42).
3. bleed valve as claimed in claim 2, is characterized in that: described valve seat (24) and screw thread valve pocket (22) are coaxially arranged.
4. bleed valve as claimed in claim 2, is characterized in that:
Described spool (42) is for coniform, and described valve seat (24) is one section of conical surface.
5. bleed valve as claimed in claim 2, is characterized in that:
The diameter of described welding ends (26) is less than the diameter of valve body upper end, and described welding ends (26) is provided with one section of tapering transition face (27).
6. bleed valve as claimed in claim 1, is characterized in that:
Described screw thread plunger (4) is provided with and screws out mark.
7. bleed valve as claimed in claim 6, is characterized in that:
Described back-out is labeled as an annular indentation (41).
8. bleed valve as claimed in claim 1, is characterized in that:
The both sides of described valve body (2) are provided with relative spanner snap-latch surface.
9. bleed valve as claimed in claim 8, is characterized in that:
Distance between described spanner snap-latch surface is equal with the distance between the spanner snap-latch surface of described locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520692327.XU CN204942559U (en) | 2015-09-08 | 2015-09-08 | Hydraulic pipe line bleed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520692327.XU CN204942559U (en) | 2015-09-08 | 2015-09-08 | Hydraulic pipe line bleed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204942559U true CN204942559U (en) | 2016-01-06 |
Family
ID=55009991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520692327.XU Active CN204942559U (en) | 2015-09-08 | 2015-09-08 | Hydraulic pipe line bleed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204942559U (en) |
-
2015
- 2015-09-08 CN CN201520692327.XU patent/CN204942559U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108775230A (en) | A kind of oil well head pressure relief device | |
| CN204942559U (en) | Hydraulic pipe line bleed valve | |
| CN100483003C (en) | Plugging device for pipe under pressure and its operation method | |
| CN201401548Y (en) | Float type water level regulator | |
| CN204094186U (en) | High pressure manual hole making drill | |
| CN105945868A (en) | Simple valve replacing tool | |
| CN203809179U (en) | High pressure fuel pipe for railway locomotives | |
| CN102951383A (en) | Sealed oil nozzle used for oil bag | |
| CN101559829A (en) | Float-type water level regulator | |
| CN109210265A (en) | A kind of petroleum valve with anti-theft function | |
| CN108730668A (en) | Reactor fluid power gate leakage monitoring nozzle plug and its tool specially for attaching and detaching | |
| CN208565943U (en) | Reducer tee weld leakage fixture | |
| CN204372439U (en) | Can quick mounting blocking flange spool | |
| CN208380838U (en) | A kind of Leibo pump hand unloads valve | |
| CN103216224B (en) | Annular pressure monitoring sealing device for geological drilling | |
| CN115199219A (en) | Seal checking joint and oil pipe seal checking method | |
| CN201810231U (en) | Safety ejecter with pressing screwed plug | |
| CN202350973U (en) | Pressure gauge seat capable of automatically preventing leakage | |
| CN207414709U (en) | A kind of pipeline mending-leakage with pressure is welded and fixed frame | |
| CN219388933U (en) | Safety valve plugging device | |
| CN111530224B (en) | Gas and oil mist separation device for aircraft emergency control system and use method thereof | |
| CN204130064U (en) | A kind of practice-training teaching diesel engine oil-way exhaust apparatus | |
| CN215950777U (en) | Repair welding equipment for petroleum pipeline | |
| CN208457215U (en) | One kind is exempted to be vented valve connection device | |
| CN203686469U (en) | Pressure pipeline nausea board |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |