CN113217664A - Three-gear fluid change-over valve - Google Patents

Three-gear fluid change-over valve Download PDF

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Publication number
CN113217664A
CN113217664A CN202110424548.9A CN202110424548A CN113217664A CN 113217664 A CN113217664 A CN 113217664A CN 202110424548 A CN202110424548 A CN 202110424548A CN 113217664 A CN113217664 A CN 113217664A
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CN
China
Prior art keywords
arc
hole
water
ceramic plate
water outlet
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Pending
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CN202110424548.9A
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Chinese (zh)
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区伟文
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Individual
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Individual
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Priority to CN202110424548.9A priority Critical patent/CN113217664A/en
Publication of CN113217664A publication Critical patent/CN113217664A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
    • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
    • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • F16K31/605—Handles for single handle mixing valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)

Abstract

A three-gear fluid change-over valve comprises a valve cover, a driving sleeve with an upper opening and a lower opening, an upper static ceramic plate, a middle static ceramic plate, a lower static ceramic plate, a water inlet and outlet seat and a fixing piece, wherein the water inlet and outlet seat is inserted into the driving sleeve; the water outlet cavity part of the valve cover is inserted into the upper end of the driving sleeve, and the guide rod penetrates through the upper central hole, the central hole and the lower central hole and extends into the upper counter bore; the radial water guide hole is communicated with the arc water outlet groove; the circular water channel of the upper static ceramic plate is communicated with the circular water guide channel in a butt joint mode, the water channel of the fixing piece is embedded with the lower sinking hole, and the external thread connecting pipe part penetrates through the connecting hole to be screwed with the internal thread part of the water outlet cavity of the rod. By adopting the structure, the operation can be realized only by rotating the driving sleeve, so that the use is convenient.

Description

Three-gear fluid change-over valve
Technical Field
The invention relates to a gear change-over valve for a shower valve.
Background
In the prior art, a fluid conversion valve is inconvenient to use.
Disclosure of Invention
The purpose of the invention is: provides a three-gear fluid conversion valve which has the characteristic of convenient use.
The invention is realized by the following steps: a three-speed fluid switching valve characterized in that: it comprises a valve cover, a driving sleeve with an upper opening and a lower opening, an upper static ceramic piece, a middle dynamic ceramic piece, a lower static ceramic piece, a water inlet and outlet seat and a fixing piece,
the valve cover comprises a water outlet cavity part, a flange arranged on the water outlet cavity part, an annular water guide groove arranged at the bottom of the water outlet cavity part, a plurality of water guide holes for communicating the annular water guide groove with the water inlet cavity, a guide rod and a rod water outlet cavity with a lower opening arranged on the guide rod, wherein the rod water outlet cavity is provided with a radial water guide hole and an internal thread part positioned at the lower end;
the upper static ceramic plate comprises an upper central hole positioned on the axis, and a circular water tank positioned on the upper surface and a circular arc water guide hole which is communicated with the circular water tank along the axial direction;
the middle moving ceramic wafer comprises a central hole positioned on the axis, an upper small circular arc water guide hole arranged at the upper part and a lower large circular arc water guide hole arranged at the lower part, and the upper small circular arc water guide hole is communicated with the lower large circular arc water guide hole;
the lower static ceramic plate comprises a lower central hole, an arc-shaped water inlet hole, an arc-shaped water outlet hole and an arc-shaped water outlet groove, and the arc-shaped water outlet groove is communicated with the lower central hole; the upper end of the arc-shaped water inlet hole is a small arc-shaped water inlet hole, and the lower end of the arc-shaped water inlet hole is a large arc-shaped water inlet hole;
the water inlet and outlet seat comprises a connecting hole, an arc water inlet hole and an arc axial water outlet channel which are positioned on the axis, and the upper end and the lower end of the connecting hole are respectively provided with an upper counter bore and a lower counter bore;
the fixing piece comprises a water channel and an external thread interface pipe part which are arranged on the axis;
the upper end of the water inlet and outlet seat is inserted into a sunk hole at the lower end of the driving sleeve, the lower static ceramic plate is arranged on the water inlet and outlet seat, the arc-shaped water inlet hole and the arc-shaped water outlet hole of the lower static ceramic plate correspond to the arc-shaped water inlet hole and the arc-shaped axial water outlet channel on the water inlet and outlet seat, the middle moving ceramic plate is arranged on the lower static ceramic plate and is in running fit with the lower static ceramic plate, and the upper static ceramic plate is arranged on the middle moving ceramic plate; the water outlet cavity part of the valve cover is inserted into the upper end of the driving sleeve, the flange is in running fit with the upper end of the driving sleeve, and the guide rod penetrates through the upper central hole, the central hole and the lower central hole and extends into the upper counter bore; the radial water guide hole is communicated with the arc water outlet groove; the circular water channel of the upper static ceramic plate is communicated with the circular water guide channel in a butt joint mode, the water channel of the fixing piece is embedded with the lower sinking hole, and the external thread connecting pipe part penetrates through the connecting hole to be screwed with the internal thread part of the water outlet cavity of the rod.
Preferably: a radial positioning block is arranged in an upper central hole of the upper static ceramic plate, and a radial positioning block is arranged in a lower central hole of the lower static ceramic plate;
the lower part and the lower part of the guide rod of the valve cover are respectively provided with a radial positioning groove corresponding to the upper and lower static ceramic sheets, and a radial positioning block is embedded with the radial positioning groove so as to lock the radial positions and the corresponding angles of the upper and lower static ceramic sheets.
Preferably: the inner wall of the driving sleeve is provided with a circular protrusion, the circular protrusion is provided with a radial clamping groove, the outer circumferential surface of the middle-moving ceramic plate is provided with a radial convex block, and the radial block is embedded with the radial groove.
Preferably: the guide ring comprises an axial part and a flange part;
the axial part is inserted into the driving sleeve, and the flange part is attached to the upper end of the driving sleeve; the outer circumferential surface of the water outlet cavity part of the valve cover is in running fit with the axial part.
Preferably: the arc-shaped water inlet hole of the lower static ceramic piece, the upper small arc-shaped water guide hole and the lower large arc-shaped water guide hole of the middle moving ceramic piece, the arc-shaped water guide hole on the upper static ceramic piece and the water outlet cavity part of the valve cover are reasonably matched with each other to achieve the purposes that the water outlet channels are mutually isolated and the communication state between the corresponding water channels can be achieved through switching operation;
the driving sleeve and the middle moving ceramic plate rotate clockwise or anticlockwise to switch the corresponding water outlet channel to be communicated;
preferably: an arc-shaped positioning seat is arranged in the driving sleeve, three positioning grooves are uniformly distributed on the arc-shaped positioning seat, and the central angle between every two adjacent positioning grooves is set between 50 and 80 degrees according to the requirements of different application scenes;
the water outlet cavity part is provided with a blind hole and a sliding stop block, and the blind hole and the sliding stop block are arranged on the same diameter line;
the device also comprises a positioning ball and a pressure spring;
the pressure spring is arranged in the blind hole, the positioning ball is arranged on the pressure spring, the positioning ball is in sliding fit with the arc-shaped positioning seat and is in positioning fit with the positioning groove, and the sliding stop block is in stop fit with two ends of the arc-shaped positioning seat.
Preferably: the driving sleeve is provided with a handle.
The three-gear fluid conversion valve has the advantages that due to the adoption of the structure, only the driving sleeve needs to be rotated, and the use is convenient.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a view a-a of fig. 1.
Figure 3 is a view B-B of figure 1,
fig. 4 is a view C-C of fig. 1.
Fig. 5 is a view from D-D of fig. 2.
Fig. 6 is one of the exploded perspective views of the present invention.
Fig. 7 is a second exploded perspective view of the present invention.
Fig. 8 is one of the exploded views of the upper ceramic plate, the middle ceramic plate and the lower ceramic plate according to the present invention.
Fig. 9 is a second exploded view of the upper ceramic plate, the middle ceramic plate and the lower ceramic plate according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in figure 1, a three-gear fluid change-over valve comprises a valve cover 1, a driving sleeve 2 with upper and lower openings, an upper static ceramic piece 3, a middle moving ceramic piece 4, a lower static ceramic piece 5, a water inlet and outlet seat 6 and a fixing piece 7,
the valve cover 1 comprises a water outlet cavity part 11, a flange 12 arranged on the water outlet cavity part, an annular water guide groove 13 arranged at the bottom of the water outlet cavity part, a plurality of water guide holes 14 for communicating the annular water guide groove with the water inlet cavity, a guide rod 15 and a rod water outlet cavity 16 which is arranged on the guide rod and is provided with a lower opening, wherein the rod water outlet cavity 16 is provided with a radial water guide hole 161 and an internal thread part positioned at the lower end;
a handle 21 is arranged on the driving sleeve 2; the driving sleeve 2 can also be arranged in other forms, and drives the driving sleeve 2 to rotate;
the upper static ceramic plate 3 comprises an upper central hole positioned on the axis, a circular water tank 31 positioned on the upper surface and an axial arc water guide hole 32 communicated with the circular water tank;
the middle moving ceramic plate 4 comprises a central hole positioned on the axis, an upper small circular arc water guide hole 41 arranged at the upper part and a lower large circular arc water guide hole 42 arranged at the lower part, and the upper small circular arc water guide hole 41 is communicated with the lower large circular arc water guide hole 42; the central angle of the upper small circular arc water guide hole 41 is smaller than that of the lower large circular arc water guide hole 42, and the central angle of the lower large circular arc water guide hole 42 is 180 degrees;
the lower static ceramic plate 5 comprises a lower central hole, an arc-shaped water inlet hole 51, an arc-shaped water outlet hole 52 and an arc-shaped water outlet groove 53, and the arc-shaped water outlet groove is communicated with the lower central hole; the upper end of the circular arc-shaped water inlet hole 51 is a small circular arc-shaped water inlet hole 511, and the lower end is a large circular arc-shaped water inlet hole 512;
the water inlet and outlet seat 6 comprises a connecting hole 61, an arc water inlet hole 62 and an arc axial water outlet channel 63 which are positioned on the axis, and the upper end and the lower end of the connecting hole 61 are respectively provided with an upper counter bore 611 and a lower counter bore 612;
the fixing piece 7 comprises a water channel 71 and an external thread interface pipe part 72 which are arranged on the axis, and the diameter of the external thread interface pipe part 72 is smaller than that of the water channel 71;
the upper end of the water inlet and outlet seat 6 is inserted into a sunk hole at the lower end of the driving sleeve 2, the lower static ceramic plate 5 is arranged on the water inlet and outlet seat 6, a large arc-shaped water inlet 512 of an arc-shaped water inlet 51 of the lower static ceramic plate 5 corresponds to and is connected with an arc-shaped water inlet 62 on the water inlet and outlet seat 6, an arc-shaped water outlet 52 corresponds to and is communicated with an arc-shaped axial water outlet channel 63, the middle moving ceramic plate 4 is arranged on the lower static ceramic plate 5 and is in running fit with the lower static ceramic plate, and the upper static ceramic plate 3 is arranged on the middle moving ceramic plate 4; the water outlet cavity part 11 of the valve cover 1 is inserted into the upper end of the driving sleeve 2, the flange 12 is in running fit with the upper end of the driving sleeve 21, and the guide rod 15 penetrates through the upper static ceramic piece 3, the upper central hole, the central hole of the middle movable ceramic piece 4 and the lower central hole of the lower static ceramic piece 5 and extends into the upper counter bore 611; the radial water guide hole 161 is communicated with the arc water outlet groove 53; the circular water tank 31 of the upper static ceramic plate 3 is in butt joint communication with the circular water guide tank 13, the water channel 71 of the fixing piece 7 is embedded with the lower sinking hole 612, and the external thread interface pipe part 72 passes through the connecting hole to be screwed with the internal thread part of the rod water outlet cavity 16;
as shown in fig. 1, 6-9, the upper small arc water guide hole 41 of the middle moving ceramic piece 4 is communicated with the arc water guide hole 32 of the upper static ceramic piece 3, and the lower large arc water guide hole 42 is communicated with the small arc water inlet 511 and the large arc water inlet 512 of the lower static ceramic piece 5; water enters the water outlet cavity part 11 and flows out to form a first water flow channel;
in the state shown in fig. 1, 6 and 8, the driving sleeve 2 and the middle moving ceramic plate 4 rotate together in the counterclockwise direction, the lower large arc-shaped water guide hole 42 of the middle moving ceramic plate 4 is communicated with the arc water outlet groove 53 and the small arc water inlet hole 511 of the lower static ceramic plate 5, and water flows out through the arc water outlet groove 53, the radial water guide hole 161 and the water channel 71 of the fixing member 7 to form a second water flow channel;
in the state shown in fig. 1, 6 and 8, the driving sleeve 2 and the middle moving ceramic plate 4 rotate together clockwise, and the lower large arc-shaped water guide hole 42 of the middle moving ceramic plate 4 is communicated with the arc-shaped water outlet hole 52 and the small arc-shaped water inlet hole 511 of the lower static ceramic plate 5; the water flows out through the circular arc water outlet 52 and the circular arc axial water outlet channel 63 to form a third water flow channel. According to the technical scheme, the driving sleeve 2 and the middle moving ceramic plate 4 can rotate at 160 degrees together with 100 degrees.
As shown in fig. 9, a radial positioning block 33 is arranged in an upper central hole of the upper static ceramic plate 3; a radial positioning block is arranged in a lower central hole of the lower static ceramic plate 5;
the lower part and the lower part of the guide rod 15 of the valve cover 1 are respectively provided with an axial positioning groove 151, and the radial positioning block 33 is embedded with the radial positioning groove 151;
the lower end of the guide rod 15 is provided with a plug board 152, the connecting hole 61 is provided with a plug groove 613, and the plug board 152 is inserted into the plug groove 613;
two positioning columns 64 are arranged on the water inlet and outlet seat 6, positioning holes 54 are formed in the lower static ceramic plate 5, and the positioning columns 64 are inserted into the positioning holes 54; the fixing member 7 is screwed with the valve cap 1. The valve cover 1, the upper static ceramic piece 3, the lower static ceramic piece 5, the water inlet and outlet seat 6 and the fixing piece 7 are connected into a whole, and only the driving sleeve 2 and the middle dynamic ceramic piece 4 rotate.
The inner wall of the driving sleeve 2 is provided with a circular protrusion 22, the circular protrusion 22 is provided with a radial clamping groove 221, the outer circumferential surface of the middle-moving ceramic plate 4 is provided with a radial protrusion 43, and the radial protrusion 43 is embedded with the radial clamping groove 221; the drive sleeve 2 and the middle moving ceramic plate 4 rotate together.
The guide ring 8 comprises an axial part and a flange part;
the axial part is inserted into the driving sleeve 2, and the flange part is attached to the upper end of the driving sleeve 2; the outer circumferential surface of the water outlet cavity part 11 of the valve cover 1 is rotationally matched with the axial part.
The circular arc water inlet hole 51 of the lower static ceramic piece 5, the upper small circular arc water guide hole 41 and the lower large circular arc water guide hole 42 of the middle moving ceramic piece 4, the circular arc water guide hole 32 of the upper static ceramic piece 3 and the water outlet cavity part 11 of the valve cover 1 are communicated; namely a first water flow channel;
the driving sleeve and the middle moving ceramic plate rotate clockwise or anticlockwise and are switched to corresponding water paths to be conducted;
as shown in fig. 4, an arc-shaped positioning seat 23 is arranged in the driving sleeve 2, three positioning grooves 231 are uniformly distributed on the arc-shaped positioning seat 23, and a central angle between two adjacent positioning grooves 231 is 80 degrees; the angle is set between 50 degrees and 80 degrees according to the requirements of different application scenes.
The water outlet cavity part 11 is provided with a blind hole 111 and a sliding stop block 112, and the blind hole 111 and the sliding stop block 112 are on the same diameter line;
a positioning ball 9 and a pressure spring (not marked in the figure) are also included;
the pressure spring is arranged in the blind hole 111, the positioning ball 9 is arranged on the pressure spring, the positioning ball 9 is in sliding fit with the arc-shaped positioning seat 23 and is in positioning fit with the positioning groove 231, and the sliding stop block 112 is in stop fit with two ends of the arc-shaped positioning seat 23;
in the state of fig. 4, the driving sleeve 2 and the middle moving ceramic plate 4 rotate counterclockwise together by a relative angle of 50-80 degrees, and the second water flow channel is communicated; in the state of fig. 4, the driving sleeve 2 and the middle moving ceramic plate 4 rotate clockwise by a relative angle of 50-80 degrees, and the third water flow channel is communicated; by adopting the structure, under the normal open state, the conversion can be realized by clockwise or anticlockwise rotation, the hand feeling is good, and the identification is convenient.
What has been described above is merely a preferred embodiment of the present invention. It should be noted that a person skilled in the art could make several modifications and variations without departing from the principle of the present invention, which should also be regarded as the protection scope of the present invention.

Claims (7)

1. A three-speed fluid switching valve, characterized in that: it comprises a valve cover, a driving sleeve with an upper opening and a lower opening, an upper static ceramic piece, a middle dynamic ceramic piece, a lower static ceramic piece, a water inlet and outlet seat and a fixing piece,
the valve cover comprises a water outlet cavity part, a flange arranged on the water outlet cavity part, an annular water guide groove arranged at the bottom of the water outlet cavity part, a plurality of water guide holes for communicating the annular water guide groove with the water inlet cavity, a guide rod and a rod water outlet cavity with a lower opening arranged on the guide rod, wherein the rod water outlet cavity is provided with a radial water guide hole and an internal thread part positioned at the lower end;
the upper static ceramic plate comprises an upper central hole positioned on the axis, and a circular water tank positioned on the upper surface and a circular arc water guide hole which is communicated with the circular water tank along the axial direction;
the middle moving ceramic wafer comprises a central hole positioned on the axis, an upper small circular arc water guide hole arranged at the upper part and a lower large circular arc water guide hole arranged at the lower part, and the upper small circular arc water guide hole is communicated with the lower large circular arc water guide hole;
the lower static ceramic plate comprises a lower central hole, an arc-shaped water inlet hole, an arc-shaped water outlet hole and an arc-shaped water outlet groove, and the arc-shaped water outlet groove is communicated with the lower central hole; the upper end of the arc-shaped water inlet hole is a small arc-shaped water inlet hole, and the lower end of the arc-shaped water inlet hole is a large arc-shaped water inlet hole;
the water inlet and outlet seat comprises a connecting hole, an arc water inlet hole and an arc axial water outlet channel which are positioned on the axis, and the upper end and the lower end of the connecting hole are respectively provided with an upper counter bore and a lower counter bore;
the fixing piece comprises a water channel and an external thread interface pipe part which are arranged on the axis;
the upper end of the water inlet and outlet seat is inserted into a sunk hole at the lower end of the driving sleeve, the lower static ceramic plate is arranged on the water inlet and outlet seat, the arc-shaped water inlet hole and the arc-shaped water outlet hole of the lower static ceramic plate correspond to the arc-shaped water inlet hole and the arc-shaped axial water outlet channel on the water inlet and outlet seat, the middle moving ceramic plate is arranged on the lower static ceramic plate and is in running fit with the lower static ceramic plate, and the upper static ceramic plate is arranged on the middle moving ceramic plate; the water outlet cavity part of the valve cover is inserted into the upper end of the driving sleeve, the flange is in running fit with the upper end of the driving sleeve, and the guide rod penetrates through the upper central hole, the central hole and the lower central hole and extends into the upper counter bore; the radial water guide hole is communicated with the arc water outlet groove; the circular water channel of the upper static ceramic plate is communicated with the circular water guide channel in a butt joint mode, the water channel of the fixing piece is embedded with the lower sinking hole, and the external thread connecting pipe part penetrates through the connecting hole to be screwed with the internal thread part of the water outlet cavity of the rod.
2. A three-speed fluid switching valve as defined in claim 1, wherein: a radial positioning block is arranged in an upper central hole of the upper static ceramic plate, and a radial positioning block is arranged in a lower central hole of the lower static ceramic plate;
the lower part and the lower part of the guide rod of the valve cover are respectively provided with a radial positioning groove corresponding to the upper and lower static ceramic sheets, and a radial positioning block is embedded with the radial positioning groove so as to lock the radial positions and the corresponding angles of the upper and lower static ceramic sheets.
3. A three-speed fluid switching valve as defined in claim 1, wherein: the inner wall of the driving sleeve is provided with a circular protrusion, the circular protrusion is provided with a radial clamping groove, the outer circumferential surface of the middle-moving ceramic plate is provided with a radial convex block, and the radial block is embedded with the radial groove.
4. A three-speed fluid switching valve as defined in claim 1, wherein: the guide ring comprises an axial part and a flange part;
the axial part is inserted into the driving sleeve, and the flange part is attached to the upper end of the driving sleeve; the outer circumferential surface of the water outlet cavity part of the valve cover is in running fit with the axial part.
5. A three-speed fluid switching valve as defined in claim 1, wherein: the arc-shaped water inlet hole of the lower static ceramic piece, the upper small arc-shaped water guide hole and the lower large arc-shaped water guide hole of the middle moving ceramic piece, the arc-shaped water guide hole on the upper static ceramic piece and the water outlet cavity part of the valve cover are reasonably matched with each other to achieve the purposes that the water outlet channels are mutually isolated and the communication state between the corresponding water channels can be achieved through switching operation;
the driving sleeve and the middle moving ceramic plate rotate clockwise or anticlockwise to switch the corresponding water outlet channel to be communicated.
6. A three-speed fluid switching valve as defined in claim 1, wherein: an arc-shaped positioning seat is arranged in the driving sleeve, three positioning grooves are uniformly distributed on the arc-shaped positioning seat, and the central angle between every two adjacent positioning grooves is set between 50 and 80 degrees according to the requirements of different application scenes;
the water outlet cavity part is provided with a blind hole and a sliding stop block, and the blind hole and the sliding stop block are arranged on the same diameter line;
the device also comprises a positioning ball and a pressure spring;
the pressure spring is arranged in the blind hole, the positioning ball is arranged on the pressure spring, the positioning ball is in sliding fit with the arc-shaped positioning seat and is in positioning fit with the positioning groove, and the sliding stop block is in stop fit with two ends of the arc-shaped positioning seat.
7. A three-speed fluid switching valve as defined in claim 1, wherein: the driving sleeve is provided with a handle.
CN202110424548.9A 2021-04-20 2021-04-20 Three-gear fluid change-over valve Pending CN113217664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110424548.9A CN113217664A (en) 2021-04-20 2021-04-20 Three-gear fluid change-over valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110424548.9A CN113217664A (en) 2021-04-20 2021-04-20 Three-gear fluid change-over valve

Publications (1)

Publication Number Publication Date
CN113217664A true CN113217664A (en) 2021-08-06

Family

ID=77088040

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110424548.9A Pending CN113217664A (en) 2021-04-20 2021-04-20 Three-gear fluid change-over valve

Country Status (1)

Country Link
CN (1) CN113217664A (en)

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