CN204704237U - A kind of hydraulic seal screw - Google Patents
A kind of hydraulic seal screw Download PDFInfo
- Publication number
- CN204704237U CN204704237U CN201520237265.3U CN201520237265U CN204704237U CN 204704237 U CN204704237 U CN 204704237U CN 201520237265 U CN201520237265 U CN 201520237265U CN 204704237 U CN204704237 U CN 204704237U
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- CN
- China
- Prior art keywords
- screw
- locking mechanism
- sealing screw
- sealing
- hydraulic seal
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- 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.)
- Expired - Fee Related
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- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model discloses a kind of hydraulic seal screw, comprise sealing screw, the top of sealing screw is connected with locking mechanism, it is characterized in that, is provided with knob hole in the middle of described locking mechanism, and the structure of locking mechanism is little large below above.Overall structure of the present utility model is simple, easy processing, and cost is low and easy to assembly; The hermetic unit of sealing screw is safe and reliable, simple to operation during installation; The guide oil circuit hole the most frequently used according to hydraulic control, the thread size of adjustment sealing screw, the best is applicable to the screw thread of M6, M8 and M10; When using this sealing screw to assemble, reject rate is low, and working efficiency is high; Assembly process does not need to use sealer, saves cost, reduces system oil contamination.
Description
Technical field
The utility model relates to a kind of hydraulic seal screw, belongs to hydraulic pressure series products technical field.
Background technique
Hydraulic pressure class component, can according to different requirement in course of working, and inside parts will process oil channel hole, and many ends will seal, and this just requires there is excellent obturator, prevents from occurring leakage of oil situation in the course of the work.
In the design of hydraulic pressure series products, Sealing is a kind of important element, and the quality of Sealing directly has influence on sealing and the Economy of hydraulic product.The sealing of prior art hydraulic product often occurs that sealability is fine, but not quick detachable and maintenance, have a strong impact on the re-using property of product.
The screw plug that tradition uses, as shown in Figure 5, Figure 6, there is the deficiency of following several respects in structure:
Traditional screw plug as shown in Figure 5:
1, in assembly process, do not have main body to assist, rotate assembling by interior hexagonal, not easily tighten; And what be threaded into deep mixedly causes, and affects attractive in appearance;
2, whole screw plug becomes a cone, the sealing of the cone angle do not set up, and to be coordinated with tapped hole by the screw thread of screw plug and seal, sealability is not fine, and can not well fix in plug screw load hole;
3, conventional screw plug wants combination seal glue to use, and for disposable, but easily pollutes.
Traditional screw plug as shown in Figure 6:
1, processing waste material, cost is higher;
2, after assembling, upper part must be twisted into two parts, and can not keep in repair when product goes wrong, recycling.
Summary of the invention
The technical problems to be solved in the utility model is: provide that a kind of structure is simple, easily processing, hydraulic seal screw that cost is low, solve the not quick detachable and maintenance of the Sealing of prior art hydraulic product, have a strong impact on the problem of the re-using property of product.
In order to solve the problems of the technologies described above, the technical solution of the utility model there is provided a kind of hydraulic seal screw, comprises sealing screw, the top of sealing screw is connected with locking mechanism, it is characterized in that, be provided with knob hole in the middle of described locking mechanism, the structure of locking mechanism is little large below above.
Preferably, the structure of described locking mechanism is inverted trapezoidal shape structure.
Preferably, described knob hole is the quincunx hole of standard.
Compared with prior art, overall structure of the present utility model is simple, easy processing, and cost is low and easy to assembly; The hermetic unit of sealing screw is safe and reliable, simple to operation during installation; The guide oil circuit hole the most frequently used according to hydraulic control, the thread size of adjustment sealing screw, the best is applicable to the screw thread of M6, M8 and M10; When using this sealing screw to assemble, reject rate is low, and working efficiency is high; Assembly process does not need to use sealer, saves cost, reduces system oil contamination.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of hydraulic seal screw;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the schematic diagram of the tapped hole matched with a kind of hydraulic seal screw;
Fig. 4 is a kind of hydraulic seal screw structural representation after mounting;
Fig. 5 is the structural representation () of traditional screw plug;
Fig. 6 is the structural representation (two) of traditional screw plug.
Description of reference numerals
1---sealing screw, 2---locking mechanism, 2-1---knob hole.
Embodiment
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The utility model is a kind of hydraulic seal screw, and as shown in Figure 1 and Figure 2, it is made up of sealing screw 1 and the locking mechanism 2 that is connected with sealing screw 1 top, and sealing screw 1 is as a whole with locking mechanism 2.Have knob hole 2-1 in the middle of locking mechanism 2, the shape of locking mechanism 2 is inverted trapezoidal type.During assembling, by the torque requirement of the quincunx spanner of standard and GB, all screwed in tapped hole by whole hydraulic seal screw, until fit completely in the cone angle face of tapped hole upper end, forming surface seals, as shown in Figure 4, without the need to using sealer.Whole hydraulic seal bolt structure is simple, easy processing.The tapering in sealing screw sealing cone angle face generally uses 40 °, and the best is applicable to the screw thread of M6, M8.
When processing hydraulic sealing screw is with the tapped hole matched, must ensure that the cooperation of size and form and position tolerance meet the requirements, as shown in Figure 3.The sealing cone angle face of hydraulic seal screw to ensure with screw thread beat within 0.05; If black skin, the aperture of tapped hole wants ream to put down, and cone angle tolerance scope is ± 0.5 °.
The utility model and traditional screw plug difference are mainly the combination having planned as a whole above-mentioned two kinds of advantages.Aspect of performance is compared with traditional screw plug, more easy to operate, reduces cost.
Specific operation are verified by testing and putting into practice:
Air tightness test: hydraulic seal screw of the present utility model is installed on frock valve body, body cavity is full of the dry gas that pressure is 0.16MPa, is then immersed in antirust solution, stop more than 1min, and shake a little, observe in liquid and have bubble-free to produce.
Practice: plunger pump, the control valve produced at present, thousands of covers all use this novel seal screw to seal, and render to the product on market, up-to-standard rate reaches 99.81%.Through Product Validation.Hydraulic seal screw of the present utility model effectively can solve the Leakage that current hydraulic parts runs into.Very convenient maintenance simultaneously, the raising of the utilization ratio of foundry goods, greatly reduces maintenance cost.
Because guide's oil circuit of control section, is applied in the bottom outlet that hole is M6 and M8 substantially at present, so main research these two kinds.
Claims (3)
1. a hydraulic seal screw, comprise sealing screw (1), the top of sealing screw (1) is connected with locking mechanism (2), it is characterized in that, be provided with knob hole (2-1) in the middle of described locking mechanism (2), the structure of locking mechanism (2) is large little below above.
2. a kind of hydraulic seal screw as claimed in claim 1, is characterized in that, the structure of described locking mechanism (2) is inverted trapezoidal shape structure.
3. a kind of hydraulic seal screw as claimed in claim 1, is characterized in that, described knob hole (2-1) is the quincunx hole of standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237265.3U CN204704237U (en) | 2015-04-17 | 2015-04-17 | A kind of hydraulic seal screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520237265.3U CN204704237U (en) | 2015-04-17 | 2015-04-17 | A kind of hydraulic seal screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204704237U true CN204704237U (en) | 2015-10-14 |
Family
ID=54283858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520237265.3U Expired - Fee Related CN204704237U (en) | 2015-04-17 | 2015-04-17 | A kind of hydraulic seal screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204704237U (en) |
-
2015
- 2015-04-17 CN CN201520237265.3U patent/CN204704237U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170606 Address after: 201612 Shanghai City, Songjiang District new town Minyi Road No. 26 Patentee after: Lonking (Shanghai) Machinery Parts Co., Ltd. Address before: 201612 Shanghai City, Songjiang District new town Minyi Road No. 26 Patentee before: Long Gong (Shanghai) Precision Hydraulic Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151014 Termination date: 20180417 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |