CN104963850A - Air bleeding device - Google Patents
Air bleeding device Download PDFInfo
- Publication number
- CN104963850A CN104963850A CN201510269290.4A CN201510269290A CN104963850A CN 104963850 A CN104963850 A CN 104963850A CN 201510269290 A CN201510269290 A CN 201510269290A CN 104963850 A CN104963850 A CN 104963850A
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- China
- Prior art keywords
- bleed screw
- deflation
- counterbore
- sealing
- vent slot
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Abstract
The invention relates to an air bleeding device which can be used for the exhaust of a hydraulic pipe-line system. The air bleeding device includes an air-bleed screw (1), outer threads (3) are arranged on the air-bleed screw, an exhaust vent (2) is arranged inside the air-bleed screw, the lower end of the air-bleed screw is provided with a sink hole (7) which is communicated with the exhaust vent, the diameter of the sink hole is greater than that of the exhaust vent, the inner wall (15) and the hole bottom surface (16) of the sink hole are provided with a plurality of ventilation grooves (5), and the ventilation grooves are communicated with the exhaust vent from the end face of the lower end of the air-bleed screw via the inner wall and the hole bottom surface of the sink hole. The air bleeding device further includes a sealing member (8) arranged in the sink hole, and the sealing member is in interference fit with the sink hole. The air bleeding device is simple in structure, the ventilation grooves are good in structure stability and are not easy to deform under normal pressure, and the service life of the air bleeding device is prolonged.
Description
Technical field
The present invention relates to a kind of means of deflation, be applied to the exhaust of hydraulic plumbing system.
Background technique
In current industry, hydraulic pipe line deflation structure adopts metal machine workpiece, bleeder screw and body reach sealing effect by rigidity interference fit, this structure requires high to machining accuracy, based on the linear sealing between correlated parts being interference fit, and bleed screw has cross through hole again, in axially loaded, maintenance or using process, easy undue force causes extrusion-deformation, channel blockage, affects exhaust effect.
Summary of the invention
The technical problem to be solved in the present invention to solve in prior art cross through hole easy undue force in axially loaded, maintenance or using process on bleed screw to cause extrusion-deformation, channel blockage, affect the defect of exhaust effect.
In order to solve the problems of the technologies described above, technological scheme provided by the invention is as follows: a kind of means of deflation, comprise bleed screw, described bleed screw is provided with outside thread, described bleed screw inside is provided with exhaust port, the lower end of described bleed screw is provided with counterbore, and described counterbore communicates with exhaust port, and the diameter of described counterbore is greater than the diameter of exhaust port; Inwall and the hole bottom surface of described counterbore are provided with some vent slots, and the end face of this vent slot from bleed screw lower end is communicated with exhaust port via the inwall of counterbore, hole bottom surface; Also comprise the Sealing be located in counterbore, the seal and counterbore interference fit.
Further, the excircle of described Sealing is provided with some stiffening ribs, and the quantity of described stiffening rib is less than or equal to the quantity of vent slot, and under assembling condition, described stiffening rib is positioned at described vent slot.
Further, the gap being enough to ensure smooth in exhaust is also provided with between described stiffening rib and vent slot.
Further, when the quantity of described stiffening rib is less than vent slot quantity, described stiffening rib and vent slot interference fit.
Further, also pad is provided with between described Sealing and hole bottom surface.
Further, described bleed screw is moulding, and this moulding is injection molded by the blending material of nylon and glass fibre.
Further, the excircle of described bleed screw is also provided with annular seal groove, in described seal groove, is provided with seal ring, sealing circle and annular seal groove interference fit.
Further, the excircle of described bleed screw is also provided with annular seal groove, in described seal groove, is provided with seal ring, sealing circle and annular seal groove interference fit.
Further, described Sealing is provided with boss away from the end face of exhaust port one end.
Means of deflation of the present invention, structure is simple, and the structure stability of vent slot is good, and not yielding in normal pressurized situation, the working life of means of deflation is longer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment means of deflation;
Fig. 2 is the structural representation of the present embodiment bleed screw;
Fig. 3 looks up enlarged diagram for bleed screw shown in Fig. 2;
Fig. 4 is the structural representation that first embodiment's means of deflation coordinates with the pump housing;
Fig. 5 is the structural representation that second embodiment's means of deflation coordinates with the pump housing.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, 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, connect integratedly, also can be removably connect; It can be the connection of two element internals; Can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, concrete condition can understand above-mentioned term concrete meaning in the present invention.
As shown in Figure 1, a kind of means of deflation of the present embodiment comprises bleed screw 1, and as shown in Figure 2, this bleed screw 1 is provided with outside thread 3, is provided with vertical exhaust port 2 in bleed screw inside.Further, be provided with counterbore 7 in the lower end of bleed screw, as the specialization of the present embodiment, above-mentioned counterbore 7 is interconnected with exhaust port 2, and the diameter of counterbore 7 is greater than the diameter of exhaust port 2, at counterbore 7 and exhaust port 2 connecting part forming station terrace, i.e. hole bottom surface 16.
As Figure 1-3, in the means of deflation of the present embodiment, the inwall 15 of counterbore 7 and hole bottom surface 16 are provided with some vent slots 5, and the end face of this vent slot 5 from bleed screw 1 lower end is communicated with exhaust port 2 via the inwall 15 of counterbore 7, hole bottom surface 16.Further, be provided with Sealing 8 in counterbore 7, the seal 8 is elastic component, circumferential direction and counterbore 7 interference fit.Because Sealing 8 is elastic component, in seal process, bear larger axial pressure, in the vent slot 5 be pressed on hole bottom surface 16 to prevent the Sealing end contacted with hole bottom surface 16, and then impact exhaust, between hole bottom surface 16 and Sealing, be also provided with pad 10, this pad 10 is rigid construction.
In the means of deflation of the present embodiment, the excircle of described bleed screw 1 is also provided with annular seal groove 6, in sealing groove 6, is provided with seal ring 4, sealing circle 4 and annular seal groove 6 interference fit.In the present embodiment, the form of seal ring 4 does not limit, and the conventional O RunddichtringO, special-shaped seal ring etc. used all can use in the present embodiment.
As the first mode of execution of the present embodiment, as shown in Figure 4, the height of Sealing 8 is less than or equal to the degree of depth of counterbore 7.Under the prerequisite of this kind of structure, need the pump housing 11 to lay at the bottom of the mounting hole hole of means of deflation and be provided with collar flange 13, pump housing vent 12 is communicated to the upper surface of collar flange 13.The external diameter of above-mentioned collar flange 13 is less than the internal diameter of counterbore 7, and in order to sealing effect is better, the end face of Sealing 8 away from exhaust port 2 one end is provided with boss 9, and the diameter of this boss 9 is slightly less than the diameter of pump housing vent 12.
As the second mode of execution of the present embodiment, as shown in Figure 5, the height of Sealing 8 is higher than the degree of depth of counterbore 7.The pump housing 11 mated with the means of deflation of this structure is plane at the bottom of mounting hole hole.In order to sealing effect is better, the end face of Sealing 8 away from exhaust port 2 one end is provided with boss 9, and the diameter of this boss 9 is slightly less than the diameter of pump housing vent 12.
Above-mentioned two kinds of mode of executions, although the structure of means of deflation and the pump housing slightly difference, working procedure and using effect indistinction.Means of deflation is threaded connection and is rotatably connected in the mounting hole of the pump housing, screws in the process of bleed screw, and the boss 9 of Sealing 8 enters in pump housing vent 12, and under pressure, the aperture of lower surface to pump housing vent 12 of Sealing seals completely.When needs release or exhaust, unscrew exhaust bolt 1, in seal failure situation between Sealing 8 and pump housing vent 12, the gas of the pump housing 11 inside or liquid are under pressure, as shown in arrow in Fig. 4, Fig. 5, enter exhaust port 2 along the vent slot 5 on counterbore 7 inwall 15 and hole bottom surface 16, and then discharged by exhaust port 2.
Bleed screw 1 in above-mentioned means of deflation is moulding, and this moulding is injection molded by the blending material of nylon and glass fibre (30%).Vent slot 5 in its counterbore 7 is injection molded, and without the need to carrying out secondary operations to moulding, technique is simple, and vent slot is in pressurized situation, also can not produce because being out of shape the not smooth defect that causes ventilating.
Further, as shown in Figure 1, the excircle of the Sealing 8 of the present embodiment is also provided with some stiffening ribs 14, the quantity of this stiffening rib 14 is less than or equal to the quantity of vent slot 5, and under assembling condition, above-mentioned stiffening rib 14 is all positioned at corresponding vent slot 5.It should be noted that, the set-up mode of stiffening rib is not unique formula, wherein a kind of mode of execution is, the circumferential size of this stiffening rib is less than the radial dimension of vent slot 5, although stiffening rib is positioned at vent slot, is also provided with the gap being enough to ensure smooth in exhaust between stiffening rib and vent slot, does not affect exhaust, in this kind of mode of execution, the quantity that the quantity of stiffening rib 14 is less than or equal to vent slot 5 is all passable.
Another kind of mode of execution, stiffening rib 14 and vent slot are interference fit, airspace is there is no between stiffening rib and vent slot, this kind of mode of execution, require that the quantity of stiffening rib 14 must be less than the quantity of vent slot, the exhaust of hydraulic system is realized by the vent slot not being provided with stiffening rib, and under normal circumstances, the quantity of stiffening rib is less than or equal to the half of vent slot quantity.
In the present embodiment, above-mentioned stiffening rib not only increases the intensity of Sealing, and play the guiding role when installing Sealing.After installation, stiffening rib also plays the role of positioning, and prevents Sealing from rotating in counterbore.
In a word, the foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a means of deflation, comprise bleed screw (1), described bleed screw is provided with outside thread (3), described bleed screw inside is provided with exhaust port (2), it is characterized in that, the lower end of described bleed screw is provided with counterbore (7), and described counterbore communicates with exhaust port, and the diameter of described counterbore is greater than the diameter of exhaust port; Inwall (15) and the hole bottom surface (16) of described counterbore are provided with some vent slots (5), and the end face of this vent slot from bleed screw lower end is communicated with exhaust port via the inwall of counterbore, hole bottom surface; Also comprise Sealing (8), the seal and the counterbore interference fit be located in counterbore.
2. according to means of deflation according to claim 1, it is characterized in that, the excircle of described Sealing is provided with some stiffening ribs (14), and the quantity of described stiffening rib is less than or equal to the quantity of vent slot, under assembling condition, described stiffening rib is positioned at described vent slot.
3. according to means of deflation according to claim 2, it is characterized in that, between described stiffening rib and vent slot, be also provided with the gap being enough to ensure smooth in exhaust.
4., according to means of deflation according to claim 2, it is characterized in that, when the quantity of described stiffening rib is less than vent slot quantity, described stiffening rib and vent slot interference fit.
5. according to the means of deflation described in any one of claim 1-4, it is characterized in that, between described Sealing and hole bottom surface, be also provided with pad (10).
6. according to means of deflation according to claim 5, it is characterized in that, described bleed screw is moulding, and this moulding is injection molded by the blending material of nylon and glass fibre.
7. according to the means of deflation described in any one of claim 1-4, it is characterized in that, the excircle of described bleed screw is also provided with annular seal groove (6), in described seal groove, be provided with seal ring (4), sealing circle and annular seal groove interference fit.
8. according to means of deflation according to claim 5, it is characterized in that, the excircle of described bleed screw is also provided with annular seal groove (6), in described seal groove, be provided with seal ring (4), sealing circle and annular seal groove interference fit.
9. according to the means of deflation described in claim 6 or 8, it is characterized in that, described Sealing is provided with boss (9) away from the end face of exhaust port one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269290.4A CN104963850B (en) | 2015-05-25 | 2015-05-25 | A kind of means of deflation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510269290.4A CN104963850B (en) | 2015-05-25 | 2015-05-25 | A kind of means of deflation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104963850A true CN104963850A (en) | 2015-10-07 |
| CN104963850B CN104963850B (en) | 2017-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510269290.4A Active CN104963850B (en) | 2015-05-25 | 2015-05-25 | A kind of means of deflation |
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| CN (1) | CN104963850B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090068036A1 (en) * | 2007-09-07 | 2009-03-12 | Chao Fou Hsu | Compressing diaphragm pump having automatic air expelling and pressure abnormal-preventing features for spray use |
| CN202266409U (en) * | 2011-10-24 | 2012-06-06 | 山东双轮股份有限公司 | Air exhaust plug for liquid pump |
| CN202326187U (en) * | 2011-12-02 | 2012-07-11 | 重庆水泵厂有限责任公司 | Mechanical automatic exhaust valve |
| CN203321807U (en) * | 2013-06-15 | 2013-12-04 | 沃德富泵业(无锡)有限公司 | Exhaust device for water pump |
| CN203453045U (en) * | 2013-07-18 | 2014-02-26 | 江苏亿美电器有限公司 | Exhaust structure of pool filter pump |
| TW201435213A (en) * | 2013-03-01 | 2014-09-16 | Homge Machinery Ind Co Ltd | Ventilation device for external booster pump |
| CN204783617U (en) * | 2015-05-25 | 2015-11-18 | 浙江诸暨万宝机械有限公司 | Air bleeder |
-
2015
- 2015-05-25 CN CN201510269290.4A patent/CN104963850B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090068036A1 (en) * | 2007-09-07 | 2009-03-12 | Chao Fou Hsu | Compressing diaphragm pump having automatic air expelling and pressure abnormal-preventing features for spray use |
| CN202266409U (en) * | 2011-10-24 | 2012-06-06 | 山东双轮股份有限公司 | Air exhaust plug for liquid pump |
| CN202326187U (en) * | 2011-12-02 | 2012-07-11 | 重庆水泵厂有限责任公司 | Mechanical automatic exhaust valve |
| TW201435213A (en) * | 2013-03-01 | 2014-09-16 | Homge Machinery Ind Co Ltd | Ventilation device for external booster pump |
| CN203321807U (en) * | 2013-06-15 | 2013-12-04 | 沃德富泵业(无锡)有限公司 | Exhaust device for water pump |
| CN203453045U (en) * | 2013-07-18 | 2014-02-26 | 江苏亿美电器有限公司 | Exhaust structure of pool filter pump |
| CN204783617U (en) * | 2015-05-25 | 2015-11-18 | 浙江诸暨万宝机械有限公司 | Air bleeder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104963850B (en) | 2017-08-15 |
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Address after: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Wanan Zhiyu Automobile Control System Co.,Ltd. Address before: 311835 Industrial Zone of Diankou Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG ZHUJI MANPOWER MACHINERY CO.,LTD. |