CN205936938U - A sealed fixing device for test is revealed to sprayer - Google Patents
A sealed fixing device for test is revealed to sprayer Download PDFInfo
- Publication number
- CN205936938U CN205936938U CN201620881091.9U CN201620881091U CN205936938U CN 205936938 U CN205936938 U CN 205936938U CN 201620881091 U CN201620881091 U CN 201620881091U CN 205936938 U CN205936938 U CN 205936938U
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- fixing
- sealed
- mainboard
- plunger
- test
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Abstract
The utility model relates to a sealed fixing device for test is revealed to sprayer, including fixed mainboard (2), sealed plunger, clamp plate (1), spring (5), fixed mainboard (2) on be equipped with plunger hole (3), sealed plunger setting in plunger hole (3), its bottom is supported by spring (5) of installing on fixed mainboard (2), fixed mainboard (2) on still install one fixed support arm (8), be equipped with at least one and be used for to living fixedly on fixed support arm (8) fixed screw (10) of clamp plate (1). Compared with the prior art, the utility model discloses can effectively improve the degree of accuracy of test, avoid because sealed clearance leakage etc. Causes between fixed not firm and the sealed plunger of clamp plate and the plunger hole the alert scheduling problem of wrong report, simultaneously, the change of whole equipment maintenance very makes things convenient for etc..
Description
Technical field
This utility model is related to a kind of sealed fixing device, especially relates to a kind of sealing revealing test for fuel injector
Fixing device.
Background technology
The existing sealed fixing device for fuel injector leak-testing as depicted in figs. 1 and 2, including fixing mainboard 2, Gu
Determine mainboard 2 and be provided with plunger hole 3, the bottom of plunger hole 3 is provided with sealed plunger, the structure of sealed plunger is as shown in Fig. 2 by post
Plug head 11 and piston body 12 form, and the lower section of piston body 12 is propped up using a hard-wired spring 5, meanwhile, post
Plug head 11 is contacted with the cavity wall of through hole 3 and seals.
But, due in test process, because part head is highly susceptible to radial compression, thus being susceptible to wear and tear,
Also have the power up pushed up during each part testing also very big, fixation clip frock easily loosens, so, entirely leakage sealed survey
Examination equipment is just easy to due to abrasion and the loosening of pressing plate of part head and false alarm occurs.
Utility model content
The purpose of this utility model is exactly to overcome the defect of above-mentioned prior art presence to provide one kind to be used for oil spout
The sealed fixing device of test revealed by device.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of sealed fixing device revealing test for fuel injector, including fixing mainboard, sealed plunger, pressing plate, spring,
Described fixing mainboard is provided with plunger hole, and described sealed plunger is arranged on plunger in the hole, and its bottom is arranged on solid by one
The spring determined on mainboard props up, and described fixing mainboard is also equipped with a fixing support arm, is provided with least on fixing support arm
One is used for propping up the fixed screw of fixing described pressing plate.
As preferred scheme, described fixing support arm is provided with internal diameter and leads to not less than the fixation of described fixed screw external diameter
Hole, is provided with the fixing nut mating described fixed screw at fixed via, fixed screw by fixing nut adjust and on
Lower movement, and then prop up fixing or unclamp described pressing plate.
As preferred scheme, described fixing support arm is fixedly mounted on fixing mainboard by bolt arrangement.
As preferred scheme, fixing mainboard is additionally provided with for pacifying spring-loaded spring cavity, the bottom of spring cavity sets
There is a plug for sealing spring.
As preferred scheme, described plug is fixed on fixing mainboard by bolt structure, in the outside of plug also
Sleeve is installed.
As preferred scheme, described sealed plunger includes piston body and plunger head, and described piston body is supported
Live spring, described plunger head is additionally provided with least one O-ring groove, goes back mounting O-shaped sealing ring in O-ring groove.
Further, described O-ring groove is provided with two or more.
Compared with prior art, this utility model has advantages below：
(1) this utility model passes through to add a fixing support arm on fixing mainboard, and by being arranged on fixing support arm
Fixed screw prop up pressing plate, such that it is able to realize fixing further of pressing plate very well.
(2) pass through to arrange fixing nut on fixing support arm, then pass through to move down on the matched fixed screw of regulation
Dynamic, such that it is able to very easily carry out the secondary fixation of pressing plate.Further, since being to mate between fixing nut and fixed screw,
Fixed via is separated, so, when due to excessive using and when not leading between fixed screw and fixing nut not firm,
Only need to fixed screw and the fixing nut more renewing.
(3) setting of O-ring seal also can avoid further due to part head and test through hole between seal bad and
The problem of the leak-testing false alarm occurring.
Brief description
Fig. 1 is the structural representation of existing sealed fixing device；
Fig. 2 is the structural representation of existing sealed plunger；
Fig. 3 is the structural representation of sealed fixing device of the present utility model；
Fig. 4 is the structural representation of sealed plunger of the present utility model；
In figure, 1- pressing plate, 2- fixes mainboard, 3- plunger hole, 4-O type sealing ring, 5- spring, 6- plug, 7- sleeve, and 8- is solid
Determine support arm, 9- fixing nut, 10- fixed screw, 11- piston body, 12- plunger head, 13-O type ring recess.
Specific embodiment
With specific embodiment, this utility model is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
A kind of sealed fixing device revealing test for fuel injector, its structure, referring to Fig. 3, including fixing mainboard 2, seals
Plunger, pressing plate 1, spring 5, fixing mainboard 2 is provided with plunger hole 3, and sealed plunger is arranged in plunger hole 3, and sealed plunger includes
Plunger head 12 and piston body 11, the bottom of piston body 11 is propped up by a spring 5 being arranged on fixing mainboard 2, post
Plug head 12 is provided with two O-ring grooves 13, mounting O-shaped sealing ring 4 in O-ring groove 13.
It is also equipped with a fixing support arm 8 on fixing mainboard 2, fixing support arm 8 is provided with for propping up fixation clip 1
Fixed screw 10, fixing support arm 8 is provided with the fixed via that internal diameter is not less than fixed screw 10 external diameter, installs at fixed via
There is the fixing nut 9 of coupling fixed screw 10, and fixed screw 10 is adjusted by fixing nut 9 and moves up and down, and then prop up solid
Determine or unclamp pressing plate 1, fixing support arm 8 is fixedly mounted on fixing mainboard 2 by bolt arrangement.
Embodiment 2
Compared with Example 1, remaining is all the same, and except being additionally provided with spring cavity on fixing mainboard 2, spring 5 is arranged on bullet
Spring intracavity, its top props up piston body 11, and bottom is fixedly connected the plug 6 for sealing spring cavity, and plug 6 is tied by screw
Structure is fixed on fixing mainboard 2, is also equipped with sleeve 7 in the outside of plug 6.
Embodiment 3
Compared with Example 1, remaining is all the same, except being additionally provided with two O-ring grooves 13 in plunger head 12, O-shaped
Mounting O-shaped sealing ring 4 is gone back, as shown in Figure 4 in ring recess 13.
The above-mentioned description to embodiment is to be understood that and use practicality for ease of those skilled in the art
New.Person skilled in the art obviously easily can make various modifications to these embodiments, and here is illustrated
General Principle be applied in other embodiment without through performing creative labour.Therefore, this utility model be not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, the improvement made without departing from this utility model category and
Modification all should be within protection domain of the present utility model.
Claims (7)
1. a kind of for fuel injector reveal test sealed fixing device, include fixation mainboard (2), sealed plunger, pressing plate (1),
Spring (5), described fixing mainboard (2) is provided with plunger hole (3), and described sealed plunger is arranged in plunger hole (3), its bottom
Portion is propped up by the spring (5) that is arranged on fixing mainboard (2) it is characterised in that also installing on described fixing mainboard (2)
There is a fixing support arm (8), fixing support arm (8) is provided with least one and is used for propping up the fixing spiral shell of fixing described pressing plate (1)
Silk (10).
2. according to claim 1 a kind of reveal the sealed fixing device of test it is characterised in that described for fuel injector
Fixing support arm (8) be provided with internal diameter be not less than described fixed screw (10) external diameter fixed via, at fixed via install
Have mate described fixed screw (10) fixing nut (9), fixed screw (10) pass through fixing nut (9) regulation and on move down
Dynamic, and then prop up fixing or unclamp described pressing plate (1).
3. according to claim 1 a kind of reveal the sealed fixing device of test it is characterised in that described for fuel injector
Fixing support arm (8) be fixedly mounted on fixing mainboard (2) by bolt arrangement.
4. a kind of sealed fixing device for fuel injector leakage test according to claim 1 is it is characterised in that consolidating
Determine the spring cavity for installing spring (5) is additionally provided with mainboard (2), the bottom of spring cavity is provided with one and is used for sealing spring (5)
Plug (6).
5. according to claim 4 a kind of reveal the sealed fixing device of test it is characterised in that described for fuel injector
Plug (6) be fixed on fixing mainboard (2) by bolt structure, be also equipped with sleeve (7) in the outside of plug (6).
6. according to claim 1 a kind of reveal the sealed fixing device of test it is characterised in that described for fuel injector
Sealed plunger include piston body (12) and plunger head (11), described piston body (12) props up spring (5), described
At least one O-ring groove (13) is additionally provided with plunger head (11), goes back mounting O-shaped sealing ring (4) in O-ring groove (13).
7. according to claim 6 a kind of reveal the sealed fixing device of test it is characterised in that described for fuel injector
O-ring groove (13) be provided with two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620881091.9U CN205936938U (en) | 2016-08-13 | 2016-08-13 | A sealed fixing device for test is revealed to sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620881091.9U CN205936938U (en) | 2016-08-13 | 2016-08-13 | A sealed fixing device for test is revealed to sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205936938U true CN205936938U (en) | 2017-02-08 |
Family
ID=57920346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620881091.9U Active CN205936938U (en) | 2016-08-13 | 2016-08-13 | A sealed fixing device for test is revealed to sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205936938U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806289A (en) * | 2019-11-28 | 2020-02-18 | 河南航天液压气动技术有限公司 | Test tool for multi-plunger type pipeline assembly |
-
2016
- 2016-08-13 CN CN201620881091.9U patent/CN205936938U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806289A (en) * | 2019-11-28 | 2020-02-18 | 河南航天液压气动技术有限公司 | Test tool for multi-plunger type pipeline assembly |
| CN110806289B (en) * | 2019-11-28 | 2021-04-30 | 河南航天液压气动技术有限公司 | Test tool for multi-plunger type pipeline assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |