CN209688170U - A kind of changeable pressure tap rotary valve - Google Patents
A kind of changeable pressure tap rotary valve Download PDFInfo
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- CN209688170U CN209688170U CN201920235689.4U CN201920235689U CN209688170U CN 209688170 U CN209688170 U CN 209688170U CN 201920235689 U CN201920235689 U CN 201920235689U CN 209688170 U CN209688170 U CN 209688170U
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Abstract
The utility model discloses a kind of changeable pressure tap rotary valves, comprising: valve body, the valve body is interior along accommodating cavity is axially arranged with, and the fuel feed hole A for the pressure tap A and at least two being connected to accommodating cavity is offered on the valve body；Spool, the valve core rotation is connected in the accommodating cavity, the inner surface of the accommodating cavity and the outer surface clearance seal of spool cooperate, the spool has the interface channel for selectively making the pressure tap A on valve body be connected or disconnect with any one fuel feed hole A upon its rotation, described spool one end is pierced by the accommodating cavity and forms knob end, to drive valve core rotation.
Description
Technical field
The utility model relates to a kind of changeable pressure tap rotary valves.
Background technique
Currently, continuously connecting coalcutter in use, generally requiring several multi-way valves controls corresponding movement.Such as
Fruit is in the case where multi-way valve quantity is excessive, and according to previous usage mode, the pressure gauge that needs respectively to be connected comes for multichannel
Valve surveys pressure.But in actual use, this mode can bring some difficult and problems.Such as: one side console is hydraulic
The space of the display panel of table installation is limited, if pressure gauge quantity is excessive, can not be installed；On the other hand, pressure gauge
When quantity is excessive, interference can be also generated when reading pressure value to operator, operator is prevented to hold related pressure from promptly and accurately supportting
Information, final pressure table is excessive, increases the purchase cost of pressure gauge and the working service difficulty of later stage table, it is therefore desirable to
It can use a pressure gauge can be to the device for needing the pipeline for surveying pressure to measure.
Utility model content
The main purpose of the utility model is to provide a kind of changeable pressure tap rotary valve, can reduce use cost,
Installation space is saved to connect on multiple oil inlet pipe mounting hole B by a pressure gauge on the pressure gauge mounting hole A of rotary valve
Oil pipe is tapped into, movable valve plug is rotated by knob and allows interface channel on spool by the pressure tap A and any need on valve body
The fuel feed hole A for surveying pressure is connected to, and is disconnected with other fuel feed hole A without surveying pressure, is allowed a pressure gauge to multichannel
Oil pressure carry out survey pressure respectively, to solve the problems of the prior art.
To achieve the above object, the technical solution that the utility model is taken are as follows:
A kind of changeable pressure tap rotary valve characterized by comprising
Valve body, the valve body is interior along accommodating cavity is axially arranged with, and a survey being connected to accommodating cavity is offered on the valve body
Press the fuel feed hole A of hole A and at least two；
Spool, the valve core rotation are connected in the accommodating cavity, the inner surface of the accommodating cavity and the outer surface of spool
Clearance seal cooperation, the spool have the pressure tap A and any one fuel feed hole A phase selectively made on valve body upon its rotation
Connection or the interface channel disconnected, described spool one end is pierced by the accommodating cavity and forms knob end, to drive valve core rotation.
Further, distance is greater than pressure tap A between the axial direction at the center the center pressure tap A fuel feed hole A adjacent thereto
The sum of radius and fuel feed hole A radius, center are located at distance between the radial section where the fuel feed hole A of different radial sections and are greater than
Fuel feed hole A diameter, the axis projection of any two fuel feed hole A mutually from.
Further, the interface channel includes:
Connecting cavity, in the axially disposed spool of connecting cavity;
At least one fuel feed hole B, fuel feed hole B described in rotational valve core are connected to or disconnect with fuel feed hole A, the fuel feed hole B
It is radially connected to connecting cavity, the fuel feed hole B quantity is identical as radial section quantity where the center fuel feed hole A, the fuel feed hole B
Towards same direction setting and center is located on same axial cross section；
Pressure ring slot is surveyed, circumferentially face is opened in spool outer wall, the survey pressure ring slot and the pressure tap A to the survey pressure ring slot
Connection, the survey pressure ring slot are connected to by pressure tap B with connecting cavity.
Further, the spool both ends are additionally provided with draining annular groove A, draining annular groove B, the draining annular groove A, draining annular groove
It is connected between B by connecting hole C, the oil leak hole of connection accommodating cavity is additionally provided on the valve body at the draining annular groove B.
Further, the valve outer wall is equipped with the pressure gauge mounting hole A being connected to pressure tap A, is connected to fuel feed hole A
Oil inlet pipe mounting hole B and the drain mast mounting hole C that is connected to oil leak hole.
Further, the fuel feed hole A outer rim positioned at accommodating cavity side is equipped with sealing ring A.
Further, the rotary valve further include:
Top cover, the top cover are fixedly connected on the valve body at the top of the accommodating cavity, and the spool is equipped with positioned at cap end
Extension rod A, the extension rod A diameter are less than valve core diameter, and the extension rod A passes through through-hole A set by top cover and forms knob end；
Bottom cover, the bottom cover are fixedly connected on the valve body of the accommodating cavity bottom, and the spool is located at bottom cover end and is equipped with
Extension rod B, the extension rod B diameter are less than valve core diameter, and the extension rod B passes through through-hole B, lower end surface and bottom set by bottom cover
Lid lower end surface is concordant.
Further, the top cover is equipped with multiple location hole A, and it is circle that the center the location hole A, which is located at the center through-hole A,
On the circle of the heart, the location hole A and the fuel feed hole location A are corresponded, and fixing sleeve is connected to knob on the knob end.
Further, the top cover outer surface is fixed with the label of mark location hole A, sets in the knob towards roof side
Have and be equipped with spring in the location hole B, the location hole B of the setting to match with location hole location A, the spring one end supports
Tight location hole B inner wall, the other end push against a positioning ball in location hole A, to lock to turned position.
Further, the location hole A is bellmouth.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
One, a kind of changeable pressure tap rotary valve of the utility model, comprising:
Valve body, spool, the valve body is interior, and along accommodating cavity is axially arranged with, the valve core rotation is connected in the accommodating cavity,
The fuel feed hole A for the pressure tap A and at least two being connected to accommodating cavity is offered on the valve body；The interior table of the accommodating cavity
The cooperation of the outer surface clearance seal of face and spool, the spool have the pressure tap A selectively made on valve body upon its rotation
The interface channel for being connected or disconnecting with any one fuel feed hole A, described spool one end are pierced by the accommodating cavity and form knob end, with
Valve core rotation is driven, connection needs to survey the oil inlet pipe of pressure on fuel feed hole A, and the survey pressure of a pressure gauge is connected on pressure tap A
End, can be realized, by knob end rotate driving valve core rotation, using the interface channel on spool make pressure gauge with it is any one
It is a to need the oil inlet pipe for surveying pressure connection to realize that a pressure gauge carry out survey pressure to multiple oil circuits.
Two, the utility model passes through distance between the axial direction at the center the pressure tap A center fuel feed hole A adjacent thereto is big
In the sum of pressure tap A radius and fuel feed hole A radius, center be located at the radial section where the fuel feed hole A of different radial sections it
Between distance be greater than fuel feed hole A diameter, the axis projection of any two fuel feed hole A is mutually to guarantee pressure tap A and fuel feed hole A
Between be arranged in a staggered manner, it is ensured that mutually without influence between fuel feed hole A and pressure tap A.
Three, the utility model by by the interface channel be set as connecting cavity, at least one fuel feed hole B, survey pressure ring slot,
By the way that fuel feed hole B to be connected to connecting cavity, imports and connect so as to the pressure oil to be measured in the fuel feed hole A that will be connected to fuel feed hole B
Connect chamber, then by connecting cavity with survey pressure ring slot and be connected to export the pressure oil to be measured in connecting cavity from survey pressure ring slot, into
Survey in the pressure tap A of pressure ring slot connection, then survey pressure carried out by pressure gauge, the setting of survey pressure ring slot can make no matter spool such as
What is rotated, and the pressure oil to be measured surveyed in pressure ring slot is able to enter always in pressure tap A, and the quantity of fuel feed hole B is set and fuel feed hole A
Radial section quantity where center is identical, it is ensured that the fuel feed hole A on same section only has a fuel feed hole B can be with
It is connected to, by fuel feed hole B towards the same side be arranged and center be located on same axial cross section can make be in a position when,
There can only be a fuel feed hole B to be connected to a fuel feed hole A.
Four, the utility model is by being arranged draining annular groove A, draining annular groove B at spool both ends, and by draining annular groove A, draining
It is connected between annular groove B by connecting hole C, the oil leak hole of connection accommodating cavity is additionally provided on the valve body at the draining annular groove B,
So that Leakage Energy caused by valve inner can be assembled in draining annular groove A, draining annular groove B, and from
It is returned in fuel tank in oil leak hole.
Five, the utility model is for convenience of the installation of oil pipe and pressure gauge, and valve outer wall is equipped with the survey being connected to pressure tap A
Table mounting hole A, the oil inlet pipe mounting hole B being connected to fuel feed hole A and the drain mast mounting hole C being connected to oil leak hole are pressed, in order to
It can preferably be limited, the diameter of pressure gauge mounting hole A is greater than the diameter of pressure tap A, and the diameter of oil inlet pipe mounting hole B is big
In the diameter of fuel feed hole A, drain mast mounting hole C diameter is greater than the diameter of oil leak hole.
Six, the fuel feed hole A outer rim that the utility model is located at accommodating cavity side is equipped with sealing ring A, and sealing ring is mounted on accommodating
In matched groove on cavity wall, preferably fuel feed hole A can be sealed.
Seven, the rotary valve described in the utility model further includes top cover, bottom cover, the both ends with accommodating cavity is respectively set, just
In carrying out dismounting rotary valve, by the way that extension rod A, extension rod B is respectively set at spool both ends, extension rod A is passed through on top cover A
Through-hole A forms knob end, so as to realize and survey pressure by rotational valve core, extension rod B is passed through the through-hole B on bottom cover, is guaranteed
The stability of spool when rotation.
Eight, the utility model is equipped with multiple location hole A on top cover, and the center the location hole A, which is located at the center through-hole A, is
On the circle in the center of circle, the location hole A and the fuel feed hole location A are corresponded, by setting location hole so that it is determined which is surveyed
The oil pressure of a fuel feed hole.
Nine, the utility model identifies the position of fuel feed hole by being fixed with the label of mark location hole A in top cover outer surface
It sets, by the way that a location hole B to match with location hole location A is arranged towards roof side in knob, is set in location hole B
Set the spring of compressive state, the spring one end pushes against location hole B inner wall, and the other end pushes against a positioning ball in location hole A, from
And turned position is locked.
Ten, location hole A described in the utility model is bellmouth, and the setting of bellmouth can be convenient positioning ball from location hole
It is skidded off in A.
Detailed description of the invention
Fig. 1 is rotary valve the schematic diagram of the section structure；
Fig. 2 is valve body the schematic diagram of the section structure；
Fig. 3 is valve A-A cross section structure schematic diagram；
Fig. 4 is valve B-B-section structural schematic diagram；
Fig. 5 is spool the schematic diagram of the section structure；
Fig. 6 is spool A-A the schematic diagram of the section structure；
Fig. 7 is spool B-B the schematic diagram of the section structure；
Fig. 8 is spool C-C the schematic diagram of the section structure；
Fig. 9 is top cover the schematic diagram of the section structure；
Figure 10 is bottom cover the schematic diagram of the section structure；
Figure 11 is knob the schematic diagram of the section structure.
Icon: valve body -10, accommodating cavity 101, pressure tap A102, fuel feed hole A103, oil leak hole -104, pressure gauge mounting hole
A-105, oil inlet pipe mounting hole B-106, drain mast mounting hole C-107, sealing ring A-108, spool 11, knob end -111, connection
Chamber -112, fuel feed hole B-113, it surveys pressure ring slot -114, pressure tap B-115, draining annular groove A-116, draining annular groove B-117, extend
Bar A-118, extension rod B-119, top cover -12, through-hole A-121, retaining ring A-122, sealing ring A-123, location hole A-124, bottom cover -
13, through-hole B-131, retaining ring B-132, sealing ring B-133, knob -14, location hole B-141, spring -142, positioning ball -143,
Label 15.
Specific embodiment
The embodiment of the present application can reduce use cost, save installation by providing a kind of changeable pressure tap rotary valve
Space connects oil inlet pipe on multiple oil inlet pipe mounting hole B by a pressure gauge on the pressure gauge mounting hole A of rotary valve,
By knob rotate movable valve plug allow interface channel on spool by valve body pressure tap A and it is any need to survey pressure into
Oilhole A is connected to, and disconnects with other fuel feed hole A without surveying pressure, a pressure gauge distinguishes the oil pressure of multichannel
Survey pressure is carried out, to solve the problems of the prior art.
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
It states technical solution to be described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to this Shen
Please technical solution detailed description, rather than the restriction to technical scheme, in the absence of conflict, the application are real
The technical characteristic applied in example and embodiment can be combined with each other.
As shown in Fig. 1 ~ 11, a kind of changeable pressure tap rotary valve characterized by comprising valve body 10, spool 11, institute
It states in valve body 10 along accommodating cavity 101 is axially arranged with, a pressure tap being connected to accommodating cavity 101 is offered on the valve body 10
The fuel feed hole A103 of A102 and at least two；The spool 11 is rotationally connected in the accommodating cavity 101, the accommodating cavity 101
Inner surface and spool 11 outer surface clearance seal cooperate, the spool 11 have selectively make valve body 10 upon its rotation
On the pressure tap A102 interface channel that is connected or disconnects with any one fuel feed hole A103, described 11 one end of spool is pierced by described
Accommodating cavity 101 forms knob end 111, to drive spool 11 to rotate.
It is equipped with one in valve body 1 specifically as cylindrical accommodating cavity 101, is rotatably connected to cylinder in institute's accommodating cavity 101
Shape spool 11, the inner surface of accommodating cavity 101 and the outer surface clearance seal of spool 11 cooperate, and gap is generally 0.01 ~ 0.15mm
(on the basis of circular diameter in valve body, cooperation fine grinding spool outer circle guarantees that gap between the two in 0.01-0.015mm range
It is interior), one end of the spool 11 stretches out accommodating cavity 101 and forms knob end 111, and the spool 11 is rotationally connected with the accommodating cavity
In 101, the fuel feed hole A103 for the pressure tap A102 and at least two being connected to accommodating cavity 101 is offered on the valve body 1；
Spool 11 is equipped with interface channel, when spool 11 when being rotated by, makes to the interface channel property of can choose at knob end 111
Pressure tap A102 on valve body 1 is connected or disconnects with any one fuel feed hole A103, and connection needs to survey pressure on fuel feed hole A103
Oil inlet pipe, on pressure tap A102 be connected to a pressure gauge survey pressure side, can be realized realize a pressure gauge can be to multiple
Oil circuit carries out survey pressure.
Further, in order to enable influence pressure tap A102 and fuel feed hole A103 suffered when surveying pressure reduces, pressure is surveyed
Distance is greater than pressure tap A102 radius and fuel feed hole A103 between the axial direction at the hole center the A102 center fuel feed hole A103 adjacent thereto
The sum of radius, center are located at distance between the radial section where the fuel feed hole A103 of different radial sections and are greater than fuel feed hole A103
Diameter, the axis projection of any two fuel feed hole A103 is mutually from equal between the fuel feed hole A103 on same radial section
It is distributed on valve body 1.
Further, the interface channel includes: connecting cavity 112, at least one fuel feed hole B113, surveys pressure ring slot 114, institute
It states in the axially disposed spool 11 of connecting cavity 112;The position the fuel feed hole B113 and fuel feed hole A103 matches, and diameter phase
Together, the fuel feed hole B113 is radially connected to connecting cavity 112, can the fuel feed hole B113 quantity and the center fuel feed hole A103 institute
Identical in radial section quantity, the fuel feed hole B113 is arranged towards the same side and center is located on same axial cross section, to
Ensure that a fuel feed hole B113 can be connected to or disconnect the oil inlet that same radial section is in it when spool 11 rotates
Hole A103,
Circumferentially face is opened in 11 outer wall of spool, the survey pressure ring slot 114 and the pressure tap to the survey pressure ring slot 114
The position A102 matches, and surveys 114 width of pressure ring slot and be equal or slightly larger than pressure tap A102 diameter, surveys in 114 annular groove of pressure ring slot
The heart and the center pressure tap A102 are located at same radial section, and the survey pressure ring slot 114 is connected by pressure tap B115 and connecting cavity 112
Logical, so that it is guaranteed that no matter how spool 11 rotates, pressure tap A102 can be connected to always by surveying pressure ring slot 114.
Further, due between spool 11 and accommodating cavity 101 always with the presence of gap Leakage Energy, in order to enable Leakage Energy
It is able to carry out collection reuse, therefore is additionally provided with draining annular groove A116, draining annular groove B117, the draining at 11 both ends of spool
Pass through connecting hole C connection (production draining annular groove for convenience between draining annular groove A116, draining annular groove B117 described in annular groove A116
A116, draining annular groove B117, are equipped with the through-hole that right-angled intersection is provided on the section of place, and the through-hole of two right-angled intersections passes through
Intercommunicating pore C connection, intercommunicating pore C are generally a through-hole being axially arranged along spool for convenience of processing, and both ends are blocked using screw plug, this
Screw plug is not regarded out in figure), the oil leak hole of connection accommodating cavity 101 is additionally provided on the valve body 10 at the draining annular groove B117
104, to guarantee that Leakage Energy can flow out rotary valve from oil leak hole 104.
Further, oil inlet pipe, drain mast and pressure gauge in order to facilitate the installation of, be equipped on 10 outer wall of valve body with
The pressure gauge mounting hole A105 of pressure tap A102 connection, the oil inlet pipe mounting hole B106 and and draining being connected to fuel feed hole A103
The drain mast mounting hole C107 that hole 104 is connected to, and pressure gauge mounting hole A105 diameter be greater than pressure tap A102, both concentric set
It sets, oil inlet pipe mounting hole B106 diameter is greater than fuel feed hole A103 diameter and the concentric setting of the two, drain mast mounting hole C107 are straight
Diameter is greater than 104 diameter of oil leak hole and the concentric setting of the two.
Further, in order to reduce between fuel feed hole A103 survey pressure when influencing each other, be located at 101 side of accommodating cavity into
Oilhole A103 outer rim is equipped with sealing ring A108, it is ensured that is made when fuel feed hole A103 is connected to fuel feed hole B113 by sealing ring A108
Better seal can be had by obtaining between 11 outer surface of 101 inner surface of accommodating cavity and spool.
Further, in order to enable rotary valve is convenient for disassembly and assembly, rotation valve body can be set as cylindric, by accommodating cavity
101 are set as cavity, install the bottom installation bottom cover that the rotary valve further includes top cover 12, rotary valve at the top of rotary valve
13,12 bolt of top cover is fixedly connected on the valve body at 101 top of accommodating cavity, and the spool 11 is located at 12 end of top cover and sets
There is extension rod A118, the extension rod A118 diameter is less than 11 diameter of spool, and the top cover 12 is equipped with diameter and extension rod A118
The through-hole A121, the extension rod A118 to match passes through through-hole A formation knob end 111, the spool 11 and table in top cover 12
It is equipped with retaining ring A122 between face, sealing ring A123 is equipped between the extension rod A118 and the contact surface of through-hole A121；The bottom
13 bolt of lid is fixedly connected on the valve body of 101 bottom of accommodating cavity, and the spool 11 is located at 13 end of bottom cover equipped with extension rod
B119, the extension rod B119 diameter are less than 11 diameter of spool, and the bottom cover 13 is equipped with what diameter matched with extension rod B119
Through-hole B131, the extension rod B119 pass through through-hole B131,13 flush with outer surface of free end end face bottom cover, the spool 11 and bottom
It is equipped between 13 inner surface of lid and sealing ring B133 is set between extension rod B119 and the contact surface of through-hole B131 described in retaining ring B132
(its guide ring A122, retaining ring B132 use material politef, have the function of reducing friction when rotation, it is ensured that valve
Rotated between body and spool smooth), the use of sealing ring A123, sealing ring B133 can further prevent the oil in rotary valve
Leakage makes the connecting cavity in spool 11 for convenience, punches and make from the end face extension rod B119, in use, using screw plug (figure
In not depending on out) end-face hole is blocked, generally all installed on the contact surface of the contact surface of top cover and valve body 10, bottom cover and valve body 10
O-ring prevents oil leak.
Further, by being equipped with multiple location hole A124 on top cover 12, the center the location hole A124 is located at logical
The hole center A121 is on the circle in the center of circle, and the location hole A124 and the position the fuel feed hole A103 correspond, to realize operation
Guarantee that the fuel feed hole B113 on interface channel is directed at fuel feed hole A103 when personnel's rotary spool, by being socketed on knob end 111
Have after knob 14 using being bolted, anti-skid chequer can be used on knob 14, operator is facilitated to operate.
Further, by being fixed with the label 15 of mark location hole A124 in 12 outer surface screw of top cover, facilitate operation
The inflow pipeline of pressure is surveyed in personnel's confirmation at present, by stating in knob 14 towards 12 side of top cover equipped with one and location hole A124
It sets and is equipped with spring 142 in the location hole B141, the location hole B141 of the setting to match, described 142 one end of spring pushes against fixed
Position hole B141 inner wall, the other end push against a positioning ball 143 in location hole A124, to lock to turned position, simultaneously
An indicator can be set on knob, to indicate the oil inlet pipe of interface channel connection.
Further, the location hole A124 is bellmouth, facilitates the sliding of positioning ball 143.
In use, the oil inlet pipe of each pressure to be measured is connected on oil inlet pipe mounting hole B106 by rotary valve as required,
Pressure gauge is installed on pressure tap table mounting hole A105 again, in drain mast mounting hole C107, as needed in 15 subscript of nameplate
Know corresponding oil inlet pipe, turning knob, so that communicating passage connection pressure tap A102 and fuel feed hole to be measured on spool 11
A103 can read the oil pressure of the oil inlet pipe.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of changeable pressure tap rotary valve characterized by comprising
Valve body (10) offers and accommodating cavity along being axially arranged with accommodating cavity (101) in the valve body (10) on the valve body (10)
(101) be connected to a pressure tap A(102) and at least two fuel feed hole A(103)；
Spool (11), the spool (11) are rotationally connected in the accommodating cavity (101), the inner surface of the accommodating cavity (101)
Cooperate with the outer surface clearance seal of spool (11), the spool (11) has and selectively makes on valve body (10) upon its rotation
Pressure tap A(102) interface channel that is connected or disconnects with any one fuel feed hole A(103), described spool (11) one end is pierced by
The accommodating cavity (101) forms knob end (111), to drive spool (11) to rotate.
2. a kind of changeable pressure tap rotary valve according to claim 1, which is characterized in that
The pressure tap A(102) center fuel feed hole A(103 adjacent thereto) center axial direction between distance be greater than pressure tap A
(102) radius and fuel feed hole A(103) the sum of radius, center is located at the fuel feed hole A(103 of different radial sections) where radial direction
Between section distance be greater than fuel feed hole A(103) diameter, any two fuel feed hole A(103) axis projection mutually from.
3. a kind of changeable pressure tap rotary valve according to claim 1 or 2, which is characterized in that the interface channel packet
It includes:
Connecting cavity (112), the axially disposed spool of the connecting cavity (112) (11) are interior;
At least one fuel feed hole B(113), rotational valve core (11) described fuel feed hole B(113) it is connected to or breaks with fuel feed hole A(103)
Open, the fuel feed hole B(113) connecting cavity (112) radially are connected to, the fuel feed hole B(113) quantity and fuel feed hole A(103) in
Radial section quantity where the heart is identical, the fuel feed hole B(113) towards same direction setting and center is located at same axial cross section
On；
It surveys pressure ring slot (114), circumferentially face is opened in spool (11) outer wall, the survey pressure ring slot to the survey pressure ring slot (114)
(114) it is connected to the pressure tap A(102), the survey pressure ring slot (114) passes through pressure tap B(115) connect with connecting cavity (112)
It is logical.
4. a kind of changeable pressure tap rotary valve according to claim 3, which is characterized in that spool (11) both ends are also
Equipped with draining annular groove A(116), draining annular groove B(117), the draining annular groove A(116), draining annular groove B(117) between pass through company
Hole C connection is connect, the oil leak hole of connection accommodating cavity (101) is additionally provided on the valve body (10) at the draining annular groove B(117)
(104).
5. a kind of changeable pressure tap rotary valve according to claim 4, which is characterized in that on valve body (10) outer wall
Equipped with the pressure gauge mounting hole A(105 being connected to pressure tap A(102)), the oil inlet pipe mounting hole B that is connected to fuel feed hole A(103)
(106) and with oil leak hole (104) the drain mast mounting hole C(107 being connected to).
6. a kind of changeable pressure tap rotary valve according to claim 3, which is characterized in that be located at accommodating cavity (101) side
Fuel feed hole A(103) outer rim is equipped with sealing ring A(108).
7. a kind of changeable pressure tap rotary valve according to claim 1, which is characterized in that the rotary valve further include:
Top cover (12), the top cover (12) are fixedly connected on the valve body at the top of the accommodating cavity (101), spool (11) position
In top cover (12) end be equipped with extension rod A(118), the extension rod A(118) diameter be less than spool (11) diameter, the extension rod A
(118) it passes through through-hole A set by top cover (12) and forms knob end (111)；
Bottom cover (13), the bottom cover (13) are fixedly connected on the valve body of the accommodating cavity (101) bottom, spool (11) position
In bottom cover (13) end be equipped with extension rod B(119), the extension rod B(119) diameter be less than spool (11) diameter, the extension rod B
(119) through-hole B(131 set by bottom cover (13) is passed through), lower end surface is concordant with bottom cover (13) lower end surface.
8. a kind of changeable pressure tap rotary valve according to claim 7, which is characterized in that the top cover (12) is equipped with
Multiple location hole A(124), the location hole A(124) center is located at using the center through-hole A(121) as on the circle in the center of circle, and it is described fixed
Position hole A(124) it is corresponded with the position the fuel feed hole A(103), fixing sleeve is connected to knob (14) on the knob end (111).
9. a kind of changeable pressure tap rotary valve according to claim 7 or 8, which is characterized in that the top cover (12) is outside
Surface is fixed with mark location hole A(124) label (15), in the knob (14) towards top cover (12) side be equipped with one with it is fixed
Position hole A(124) position matches the location hole B(141 of setting), the location hole B(141) in be equipped with spring (142), the bullet
Spring (142) one end push against location hole B(141) inner wall, the other end push against a positioning ball (143) in location hole A(124), thus
Turned position is locked.
10. a kind of changeable pressure tap rotary valve according to claim 9, which is characterized in that the location hole A(124)
For bellmouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235689.4U CN209688170U (en) | 2019-02-25 | 2019-02-25 | A kind of changeable pressure tap rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920235689.4U CN209688170U (en) | 2019-02-25 | 2019-02-25 | A kind of changeable pressure tap rotary valve |
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| CN209688170U true CN209688170U (en) | 2019-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920235689.4U Active CN209688170U (en) | 2019-02-25 | 2019-02-25 | A kind of changeable pressure tap rotary valve |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780268A (en) * | 2019-02-25 | 2019-05-21 | 江苏佳煤机械有限公司 | A kind of changeable pressure tap rotary valve |
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2019
- 2019-02-25 CN CN201920235689.4U patent/CN209688170U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109780268A (en) * | 2019-02-25 | 2019-05-21 | 江苏佳煤机械有限公司 | A kind of changeable pressure tap rotary valve |
| CN109780268B (en) * | 2019-02-25 | 2024-04-30 | 江苏佳煤机械有限公司 | Rotary valve capable of switching pressure measuring points |
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