CN208645222U - A kind of tool for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve - Google Patents
A kind of tool for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve Download PDFInfo
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- CN208645222U CN208645222U CN201821199113.9U CN201821199113U CN208645222U CN 208645222 U CN208645222 U CN 208645222U CN 201821199113 U CN201821199113 U CN 201821199113U CN 208645222 U CN208645222 U CN 208645222U
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- ratchet
- nut
- pressure relieving
- screwdriver
- relieving valve
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Abstract
The utility model discloses a kind of tools for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve, include: a pedestal, and top surface is equipped with slotted point screwdriver vertically upward；One hex nut dismounts box spanner, it includes cylinder-like shell (1), screwdriver rod (7), upper surface ratchet (3), lower end surface ratchet (4), spring (6), adjusting screw rod (8), adjusting nut (10), the lower end surface of screwdriver rod (7) is hexagon indent；One herringbone nut dismounts box spanner, and in addition to lower end surface is corresponding to the herringbone indent of herringbone nut, remaining is identical as hex nut dismounting box spanner.Its safe and efficient convenient dismounting pressure relieving valve of energy of the utility model will not damage pressure relieving valve internal structure, and be easily adjusted spring pressure numerical value.
Description
Technical field
The utility model relates to a kind of dismounting tools, more particularly to a kind of fast assembling-disassembling aircraft kitchen water boiler that is used for release
The tool of pressure valve.
Background technique
Existing aircarrier aircraft uses Quick water boiler as main cabin drinking-water heating equipment, and Quick water boiler is equipped with discharge
Valve, effect is: guaranteeing that tank pressure is not too high.
Pressure relieving valve by the shell of a hexahedron, a discharge valve core, a spring, a herringbone adjustable nut and
One hexagon locking nut composition, spring is against discharge valve core (similar fuel engines valve inside): a plectane, one side
Center be vertically and fixedly provided with valve rod, another side is provided with a word groove；Valve rod free end vehicle has screw thread, is fixed with the plectane face of valve rod
With rubber washer；For spring pocket on valve rod, one end is pressed against plectane face；Valve rod free end is successively screwed with herringbone inside-out can
Adjust nut and hexagon locking nut.When hydraulic pressure reaches certain value, pressure relieving valve in the presence of hydraulic pressure beat by customer service spring pressure
It opens, water flow passes through；When hydraulic pressure is less than its value, spring and water pressure are formed and are fought, and pressure relieving valve is closed, and water flowing is stopped.
It is pointed out on CMM handbook, the range of pressure values of pressure relieving valve is 58-72psi, and the working method of pressure relieving valve is: using releasing
Rubber washer on pressure valve spool resists explosion relief, and when water flow pressure is greater than spring force, pressure relieving valve is opened.And according to Hooke
Law spring force f=kx, k value is constant.So can using the elastic length come adjustment spring of nut, value of elastic therewith changing and
Variation.In fact, the degree of fatigue of spring is to change with the yield strength of material, then k value also has accordingly
Variation, so we can not obtain fixed spring force separately through the length of adjustment spring.
Due to using frequently, scale can be generated largely, sometimes resulted in pressure relieving valve blocking or can not be opened, and pressure is excessive,
And then it generates dangerous.Workshop is sent to be cleaned, safeguarded so Quick water boiler need to be removed periodically.
Existing fractionation pressure relieving valve method needs to use a straight screwdriver and withstands a word groove inside valve, another to use
Nipper plier or small tweezers back-out the nut of hexagon to come, then with nipper plier handle " people " nut of font back-outs.And these works
Tool is less suitably that it is impaired that nipper plier can allow the corner of nut to scratch, and makes troubles later maintenance work.And for group
The method for filling pressure relieving valve then also needs the same above tool.This tool and method not only low efficiency are also easy to scratch damage and release
Structure inside pressure valve.Importantly, the spring inside pressure relieving valve cannot be pushed down easily, installing rear worker can not experience
Elastic force to spring is fed back, and adjusts pressure value.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of quickly tearing open for aircraft kitchen water boiler pressure relieving valve
Holding tool, the safe and efficient convenient dismounting pressure relieving valve of energy will not damage pressure relieving valve internal structure, and be easily adjusted spring pressure
Numerical value.
Above-mentioned technical problem is solved, the technical solution adopted in the utility model is as follows:
A kind of tool for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve, it is characterised in that include:
One pedestal, top surface are equipped with slotted point screwdriver vertically upward；
One hex nut dismounts box spanner, the Nomenclature Composition and Structure of Complexes are as follows: cylinder-like shell 1 is provided with screwdriver rod 7, thereon
End is detachably fixed with ratchet surface upper surface ratchet 3 directed downwardly, upper section can slide up and down to and be cased with the face-up lower end surface of ratchet
Ratchet 4, middle section, which are cased with spring 6, lower section and can slide up and down to, is cased with adjusting screw rod 8, and the lower end surface of screwdriver rod 7 is in hexagon
It is recessed；8 appearance of adjusting screw rod be it is up big and down small ladder-like, lower external vehicle has screw thread, is furnished with adjusting nut 10, is adjusting
On the screwdriver rod 7 for saving the lower section of nut 10, it is equipped with circlip；1 inner wall of cylinder-like shell is provided with axial keyway, described
Lower end surface ratchet 4 and adjusting screw rod 8 are all by strong 5 cooperation in the side 1 inner wall axial keyway of cylinder-like shell, so that lower end surface spine
Wheel 4 and adjusting screw rod 8 can only slide up and down on screwdriver rod 7 without being able to rotate；
One herringbone nut dismounts box spanner, in addition to lower end surface is corresponding to the herringbone indent of herringbone nut,
It is remaining identical as hex nut dismounting box spanner.
On the basis of the above, the utility model can also have following various improvement:
The outer rim of the lower end surface of the adjusting nut 10 is equipped with ratchet, and the screwdriver rod 7 is in adjusting nut 10
Lower section is also successively cased with little spring 9 and handwheel 11, and the upper surface of handwheel 11 is equipped with ratchet.
7 upper end of screwdriver rod is detachably fixed with the structure of ratchet surface upper surface ratchet 3 directed downwardly are as follows: screwdriver
The top of bar 7 is thread segment, is then square toes, is provided with square hole among ratchet surface upper surface ratchet 3 directed downwardly, covers
It is detachably fixed after on screwdriver rod 7 by nut 2.
The pedestal is plate, is provided with connection through-hole.
The utility model has the following beneficial effects:
The safe and efficient convenient dismounting pressure relieving valve of the utility model energy will not damage pressure relieving valve internal structure, and be easily adjusted
Spring pressure numerical value, in addition also overall beautiful durable and corrosion-resistant, easy to use and maintenance.Make the pressure relieving valve work after being adjusted
Meet handbook requirement as pressure.
Detailed description of the invention
The utility model is further described below by way of the drawings and specific embodiments.
Fig. 1 a firm banking schematic front view；
Fig. 1 b firm banking schematic top plan view；
Fig. 1 c firm banking left view schematic diagram；
Fig. 2 a hex nut dismounts schematic front view of the box spanner with broken section；
The elevational schematic view of Fig. 2 b Fig. 2 a；
Fig. 2 c is the schematic cross-sectional view of Fig. 2 a；
Fig. 3 a herringbone dismounts schematic front view of the box spanner with broken section；
The elevational schematic view of Fig. 3 b Fig. 3 a.
Appended drawing reference: 1- cylinder-like shell；2- nut；The upper surface 3- ratchet；The lower end surface 4- ratchet；5- square key；6- bullet
Spring；7- screwdriver rod；8- adjusting screw rod；9- little spring；10- adjusting nut；11- handwheel.
Specific embodiment
The utility model is further described below by way of specific embodiment.
Pedestal as described in being shown Fig. 1 a~1c, the pedestal are plate, are provided with connection through-hole, and top surface is equipped with vertical
Upward slotted point screwdriver.
Hex nut as described in being shown Fig. 2 a~2c dismounts box spanner, the Nomenclature Composition and Structure of Complexes are as follows: cylinder-like shell 1
It is provided with screwdriver rod 7, the upper end is detachably fixed with ratchet surface upper surface ratchet 3 directed downwardly, upper section can slide up and down to set
The lower end surface ratchet 4 that has ratchet face-up, middle section, which are cased with spring 6, lower section and can slide up and down to, is cased with adjusting screw rod 8；Screwdriver
The top of bar 7 is thread segment, is then square toes, is provided with square hole among ratchet surface upper surface ratchet 3 directed downwardly, covers
It is detachably fixed after on screwdriver rod 7 by nut 2, the lower end surface of screwdriver rod 7 is hexagon indent；The adjusting screw rod
8 appearances be it is up big and down small ladder-like, lower external vehicle has screw thread, is furnished with adjusting nut 10, in the lower section of adjusting nut 10
On screwdriver rod 7, it is equipped with circlip；1 inner wall of cylinder-like shell is provided with axial keyway, the lower end surface ratchet 4 and tune
Screw rod 8 is saved all by strong 5 cooperation in the side 1 inner wall axial keyway of cylinder-like shell, so that lower end surface ratchet 4 and adjusting screw rod 8
It can only be slided up and down on screwdriver rod 7 without being able to rotate, the outer rim of the lower end surface of the adjusting nut 10 is equipped with ratchet, institute
The screwdriver rod 7 stated also successively is cased with little spring 9 and handwheel 11 in the lower section of adjusting nut 10, and the upper surface of handwheel 11 is equipped with spine
Tooth.
Herringbone nut as described in being shown Fig. 3 a, 3b dismounts box spanner, except lower end surface is corresponding to herringbone spiral shell
Outside female herringbone indent, remaining is identical as hex nut dismounting box spanner.
When carrying out the disassembly of pressure relieving valve using tool described in the utility model, first the pedestal is put on horizontal plane,
And be bonded using the straight screwdriver on pedestal with a word groove of discharge valve core, sleeve is dismounted using the hex nut
Spanner backs out the six-sided nut on pressure relieving valve, then rotates discharge valve shell counterclockwise, herringbone nut is screwed out, is then taken
The disassembly of pressure relieving valve can be completed in spring and spool out.
When being installed to pressure relieving valve, by discharge valve core insertion pressure relieving valve shell in, and straight screwdriver with release
One word groove of pressure valve spool is bonded, and is then placed in spring, tightens herringbone nut using herringbone nut dismounting box spanner,
It reuses hex nut dismounting box spanner and tightens six-sided nut, the installation of pressure relieving valve can be completed.
Wherein, the working principle of hex nut dismounting box spanner and herringbone nut dismounting box spanner are as follows:
Cylinder-like shell 1 and lower end surface ratchet 4 form the active part of tool, and upper surface ratchet 3 and screwdriver rod 7 form
The secondary part of tool.
In carrying out installation process, when rotation hex nut dismounting box spanner/herringbone nut dismounts box spanner, circle
Cylindrical case 1 rotates, and lower end surface ratchet 4 follows cylinder-like shell 1 to rotate synchronously under the action of square key 5, and drive is engaged with
Upper surface ratchet 3 and the screwdriver rod 7 fixed with upper surface ratchet 3 follow rotation, with completion to the nut of pressure relieving valve
Installation or removal；It when torque is greater than the set value, skids between upper surface ratchet 3 and lower end surface ratchet 4, secondary part is not
It is rotated followed by active part.Therefore, when the pressure value of pressure relieving valve reaches standard value, even if continuing to rotate hex nut dismounting
Box spanner/herringbone nut dismounts box spanner, and the nut of pressure relieving valve will not be further continued for rotating, so that the work of pressure relieving valve
Pressure value reaches 58~72psi required by operation manuals.
The setting of torque is realized by adjusting nut 10 and handwheel 11.In Torque-adjusting, compresses and rotation hand wheel 11 makes
The adjusting screw rod 8 that adjusting nut 10 is threadedly coupled therewith during following rotation, adjusting nut 10 to rotate moves up and down,
Change the compression degree of spring 6: when adjusting screw rod 8 moves up, the compression degree of spring 6 increases, lower end surface ratchet 4 by
Pressure axially upwards increases, and torque setting value increases；When adjusting screw rod 8 moves down, the compression degree of spring 8 reduces,
Lower end surface ratchet 4 is reduced by pressure axially upwards, and torque setting value reduces.
Claims (4)
1. a kind of tool for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve, it is characterised in that include:
One pedestal, top surface are equipped with slotted point screwdriver vertically upward；
One hex nut dismounts box spanner, the Nomenclature Composition and Structure of Complexes are as follows: cylinder-like shell (1) is provided with screwdriver rod (7), thereon
End is detachably fixed with ratchet surface upper surface ratchet (3) directed downwardly, upper section can slide up and down to and be cased with the face-up lower end of ratchet
Face ratchet (4), middle section are cased with spring (6), lower section can slide up and down to and be cased with adjusting screw rod (8), the lower end surface of screwdriver rod (7)
For hexagon indent；Adjusting screw rod (8) appearance be it is up big and down small ladder-like, lower external vehicle has screw thread, equipped with adjusting
It saves nut (10), on the screwdriver rod (7) of the lower section of adjusting nut (10), is equipped with circlip；In the cylinder-like shell (1)
Wall is provided with axial keyway, and the lower end surface ratchet (4) and adjusting screw rod (8) are all cooperated by Fang Jian (5) described cylindric outer
Shell (1) inner wall axial keyway so that lower end surface ratchet (4) and adjusting screw rod (8) can only be slided up and down on screwdriver rod (7) and
It is not able to rotate；
One herringbone nut dismount box spanner, except lower end surface be corresponding to the herringbone indent of herringbone nut in addition to, remaining with
It is identical that hex nut dismounts box spanner.
2. the tool according to claim 1 for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve, which is characterized in that institute
The outer rim of the lower end surface for the adjusting nut (10) stated is equipped with ratchet, lower section of the screwdriver rod (7) in adjusting nut (10)
It is also successively cased with little spring (9) and handwheel (11), the upper surface of handwheel (11) is equipped with ratchet.
3. the tool according to claim 1 or 2 for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve, feature exist
In the screwdriver rod (7) upper end is detachably fixed with the structure of ratchet surface upper surface ratchet (3) directed downwardly are as follows: screwdriver
The top of bar (7) is thread segment, is then square toes, is provided with square hole among ratchet surface upper surface ratchet (3) directed downwardly,
It is detachably fixed after covering on screwdriver rod (7) by nut (2).
4. the tool according to claim 1 for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve, which is characterized in that institute
The pedestal stated is plate, is provided with connection through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821199113.9U CN208645222U (en) | 2018-07-26 | 2018-07-26 | A kind of tool for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821199113.9U CN208645222U (en) | 2018-07-26 | 2018-07-26 | A kind of tool for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208645222U true CN208645222U (en) | 2019-03-26 |
Family
ID=65786445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821199113.9U Active CN208645222U (en) | 2018-07-26 | 2018-07-26 | A kind of tool for fast assembling-disassembling aircraft kitchen water boiler pressure relieving valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208645222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116061364A (en) * | 2023-01-31 | 2023-05-05 | 浙江本凡机械有限公司 | Dismounting structure of threaded composite insert for rotational molding die |
-
2018
- 2018-07-26 CN CN201821199113.9U patent/CN208645222U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116061364A (en) * | 2023-01-31 | 2023-05-05 | 浙江本凡机械有限公司 | Dismounting structure of threaded composite insert for rotational molding die |
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