CN212250634U

CN212250634U - Jet-suction device capable of adjusting water-mixing ratio

Info

Publication number: CN212250634U
Application number: CN202020699599.3U
Authority: CN
Inventors: 张晓宁; 李鸣; 赵玉伟; 张文平; 丛华成; 刘晨晨
Original assignee: Shandong Lcarbo Energy Technology Co ltd
Current assignee: Shandong Lcarbo Energy Technology Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-29
Anticipated expiration: 2030-04-29

Abstract

The utility model discloses an ejection and suction device capable of adjusting water mixing ratio, which comprises a three-way valve body, a water inlet pipe body, a water absorbing pipe body, a water mixing pipe body and an adjusting device, wherein the three-way valve body is provided with the adjusting device, the three-way valve body is internally provided with a mounting plate, the adjusting device controls the lifting or the falling of a valve core, the water inlet pipe body is respectively sealed and isolated with the water absorbing pipe body and the water mixing pipe body through the mounting plate, the ejection and suction device is characterized in that the mounting plate is provided with a replaceable nozzle, the mounting plate is provided with a threaded hole, the outer wall of the nozzle is sequentially provided with an external thread section and a sealing flange, the nozzle is fixedly connected with the thread of the mounting plate through the external thread section arranged on the outer wall, the nozzle is in contact sealing with the upper end face of the mounting plate through the sealing flange, thereby achieving the purposes of controlling the temperature balance of each stage of pipe network and further controlling the water mixing ratio.

Description

Jet-suction device capable of adjusting water-mixing ratio

Technical Field

The utility model relates to a water supply equipment technical field, specific penetrate and inhale device of adjustable muddy water ratio that says so.

Background

As is well known, the existing water supply network generally includes a running network of a water supply end and a load network of a load end, the running network includes a water supply pipeline and a water return pipeline, the water supply pipeline is connected with the water return pipeline, a valve is arranged on the water supply pipeline, and the water supply pipeline and the water return pipeline of the water supply end form a pressure difference at the running network end corresponding to the water return end and the water outlet end of different users. The existing heat supply system belongs to a diode network, the heat supply end is a primary network, the user end is a secondary network, and the heat supply loss is formed at two ends of heat exchange points of a heat exchange station, a unit building, a unit and a heat user by the aid of the network system.

The CN206723162U retrieved discloses a utility model patent of a regulation type water jet pump for heat supply network balance, the regulation type water jet pump for heat supply network balance convenient to install and dismantle, the technical scheme adopted is that the water inlet end of a three-way valve body is provided with a water supply flange for connecting a water supply pipe, the water return end of the three-way valve body is provided with a water return flange for connecting the water supply pipe, the water mixing end of the three-way valve body is provided with a water mixing flange for connecting a water mixing pipe, the water mixing flange is connected with a mixed flow diffusion pipe, a mounting plate is arranged in the three-way valve body, a nozzle is arranged on the mounting plate, an adjusting valve core is arranged on the nozzle, and an adjusting mechanism is arranged; this construction presents substantial problems in use as follows: because the temperature of the hot water is gradually consumed and reduced in the first-level network, the second-level network, the third-level network, the fourth-level network and the fifth-level network, and the pressure difference between the front and the back of the nozzle of the Venturi type jet pump arranged on the several-level networks, the size of the nozzle and the caliber of the mixing chamber are fixed sizes, the flow and the temperature on the several-level network pipes cannot be adjusted according to requirements, and the integral temperature of the heat supply network cannot be balanced.

In addition, when the pipeline is fixedly connected with the pipeline by using the flange, because the mounting hole on the fixing flange of the other one or two connectors cannot be accurately aligned with the fixing flange on the pipeline to be connected after the water inlet end or the water suction end of the valve body is fixedly mounted, the processing and the mounting are troublesome.

Through the retrieval, CN 210218756U discloses just adorn utility model of formula ball valve of movable flange dish connection, and it includes the valve body, and the import and the export of valve body all communicate the valve body, and movable flange dish and stop part are installed to the tip that the gas pipe was connected to the valve body, and the stop part includes backstop dish and hollow double-screw bolt, and the double-screw bolt outside is equipped with the external screw thread, and backstop dish outer end and double-screw bolt outer end laminating are connected, double-screw bolt and the inner cylinder spiro union of valve body, and the terminal surface laminating of backstop dish and valve body, movable flange cup joints on the outer cylinder face of valve body, and movable flange installs backstop dish inner, the backstop dish is cyclic annular. Although the structure can solve the technical problem of fixed connection of the two pipelines, the technical problems of complex processing technology and high processing cost exist.

Disclosure of Invention

The utility model aims at solving the deficiencies of the prior art, providing a novel structure, easy dismounting, temperature are adjustable, energy saving, heat supply are balanced, the processing cost is low adjustable penetrate inhale device of mixing water ratio.

The utility model provides a technical scheme that its technical problem adopted is:

an ejection and suction device capable of adjusting water mixing ratio comprises a three-way valve body, a water inlet pipe body, a water suction pipe body, a water mixing pipe body, a valve core and an adjusting device, wherein the adjusting device is arranged on the three-way valve body, one end of a valve cavity of the three-way valve body is communicated with the water inlet pipe body, the other end of the valve cavity of the three-way valve body is communicated with the water suction pipe body, the lower end of the valve cavity of the three-way valve body is communicated with the water mixing pipe body through a sealing and fixing device, a mounting plate is arranged in the valve cavity of the three-way valve body, the adjusting device controls the valve core to ascend or descend, the water inlet pipe body is respectively sealed and isolated with the water suction pipe body and the water mixing pipe body through the mounting plate, the ejection and suction device is characterized in that a replaceable nozzle is arranged on the mounting plate, the valve core is inserted into the nozzle in a lifting mode, so that the nozzle with different specifications can be replaced according to pipeline flow with different diameters to adjust the water mixing ratio, the temperature balance of each stage of pipe network is controlled, and the purpose of controlling the water mixing ratio is achieved.

The utility model discloses can be in be equipped with removable muddy water inner tube in the muddy water body, mix water body through last connecting device and valve body fixed connection, removable muddy water inner tube and the sealed fixed connection of muddy water body, the nozzle is just to mixing water inner tube bore for at different levels the pipe network chooses the removable muddy water inner tube that is fit for according to the difference of pipeline diameter, comes the removable nozzle that the cooperation corresponds to reach the fluid flow proportion equilibrium.

The utility model discloses can be equipped with the annular seal recess on the mounting panel, install the sealing washer in the sealed recess, the sealed flange of nozzle is sealed through the sealing washer between with the mounting panel to reach the effect that sealing performance is high.

Mix water pipe body lower extreme through connecting device and diffusion tube fixed connection down to do benefit to the convenient muddy water pipe body length of changing suitable as required, reach the effect that carries out the intensive mixing to hot water and cold water, can also reach simultaneously and carry out quick replacement's effect to removable muddy water inner tube through last connecting device and lower connecting device.

The utility model discloses can install the check valve on the body that absorbs water to do benefit to and prevent to enter into the water in the valve body backward flow again.

The upper connecting device of the utility model can fixedly connect the water mixing pipe body with the valve body through two fixing flanges by the fixing bolt and the fixing nut, and can also fixedly connect the water mixing pipe body with the valve body by adopting an internal thread section and an external thread section;

the lower connecting device can also fixedly connect the water mixing pipe body with the diffusion pipe in a mode that the flange, the sealing ring, the fixing bolt and the fixing nut are connected, and can also fixedly connect the water mixing pipe body with the diffusion pipe by adopting an internal thread section and an external thread section.

Sealed fixing device can adopt to mix the water inner tube and mix water body screw thread fixed connection back through O type sealing washer sealed, also can adopt to mix the water inner tube through fixed seal circle with mix water body fixed seal and peg graft.

The utility model relates to a diffusion pipe lower end connecting pipe section, the connecting pipe section is provided with a movable flange part which comprises an upper retaining ring plate, a lower retaining ring plate, a movable flange plate, a limiting ring, an end face sealing ring and a limiting retaining sheet, the outer wall of the connecting pipe section is fixedly sleeved with the upper retaining ring plate and the lower retaining ring plate at intervals along the axial direction in sequence by the end face, an inserting gap is formed between the upper retaining ring plate and the lower retaining ring plate, the upper end face of the upper retaining ring plate is provided with at least one sealing groove by taking the axis as the center of circle, the end face sealing ring is arranged in the sealing groove to facilitate the end face sealing of the connecting part and prevent the fluid leakage,

at least two limiting blocking pieces are fixedly inserted in the insertion gap in the circumferential direction to achieve the effect of quick assembly and disassembly, the inner walls of the limiting blocking pieces are abutted against the outer wall of the connecting pipe section, the upper end face of the limiting blocking pieces is abutted against the upper ring baffle, the lower end face of the limiting blocking pieces is abutted against the lower ring baffle, and the limiting blocking pieces are partially exposed outside the upper ring baffle and the lower ring baffle,

the end face of the movable flange plate is circumferentially provided with mounting holes at intervals, the movable flange plate is sleeved on the connecting pipe section, a limiting ring is arranged between the movable flange plate and the lower baffle plate, the limiting ring is positioned below the lower baffle plate, the inner ring of the limiting ring is in clearance fit with the lower baffle plate, the diameter of the outer ring is larger than the outer diameter of the limiting baffle plate, and the outer ring of the limiting ring is fixedly connected with the lower end of the inner ring of the movable flange plate,

when the movable flange plate is fixedly connected with the fixed flange plate, the limiting ring on the movable flange plate is blocked by the limiting blocking piece, the upper end face of the limiting ring and the upper end face of the upper blocking ring plate are on the same plane, so that the sealing performance of the movable flange plate when the movable flange plate is connected with the pipeline fixed flange is ensured, the movable flange plate can circumferentially rotate on the connecting pipe section to quickly align to the mounting hole in the fixed flange plate on the pipeline, and the connecting pipe section and the pipeline fixed flange are quickly and fixedly connected through the fixing bolt and the fixing nut.

The utility model discloses can go up the retaining ring board and be equipped with the connecting block with retaining ring inter-plate circumference interval down to do benefit to the joint strength of retaining ring board and lower retaining ring board in the reinforcing, can also reach the effect of practicing thrift raw and other materials simultaneously.

The utility model discloses owing to adopt above-mentioned structure, have novel structure, easy dismounting, temperature adjustable, energy saving, heat supply are balanced, processing cost low grade advantage.

Drawings

Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a second embodiment of the present invention.

Fig. 3 is a schematic structural view of the movable flange of the present invention.

Fig. 4 is a cross-sectional view of C-C in fig. 3.

Reference numerals: the three-way valve comprises a three-way valve body 1, a water inlet pipe body 2, a water absorption pipe body 3, a water mixing pipe body 4, an adjusting device 5, a mounting plate 6, a nozzle 7, a valve core 8, a water mixing inner pipe 9, a sealing ring 10, a diffusion pipe 11, a control device 12, a connecting body 13, a connecting shaft 14, a sliding bearing 15, a guide block 16, a guide long hole 17, a servo motor output shaft 18, an upper retaining ring plate 19, a lower retaining ring plate 20, a movable flange plate 21, a limiting ring 22, an end face sealing ring 23 and a limiting retaining piece 24.

Detailed Description

The present invention will be described with reference to the accompanying drawings and examples.

As shown in the attached drawings, the jetting and sucking device capable of adjusting the water mixing ratio comprises a three-way valve body 1, a water inlet pipe body 2, a water inlet pipe body 3, a water mixing pipe body 4, a valve core 8 and an adjusting device 5, wherein the adjusting device 5 is arranged on the three-way valve body 1, one end of a valve cavity of the three-way valve body 1 is communicated with the water inlet pipe body 2, the other end of the valve cavity is communicated with the water inlet pipe body 3, the lower end of the valve cavity of the three-way valve body 1 is communicated with the water mixing pipe body 4 through a sealing and fixing device, a mounting plate 6 is arranged in the valve cavity of the three-way valve body 1, the adjusting device 5 controls the lifting or descending of the valve core, the water inlet pipe body 2 is respectively sealed and isolated from the water inlet pipe body 3 and the water mixing pipe body 4 through the mounting plate 6, the jetting and sucking device is characterized in that a replaceable nozzle, the nozzle 7 is in butt seal with the upper end face of the mounting plate 6 through the sealing flange, a horn-shaped injection hole and a cylindrical injection hole which are communicated with each other are arranged at the axis of the nozzle 7 from top to bottom, the lower end of the nozzle is corresponding to the end part of the water mixing pipe body 4, the valve core 8 can be lifted and inserted into the nozzle 7, so that the nozzle 7 with different specifications can be replaced according to pipeline flows with different diameters to adjust the water mixing ratio, the temperature balance of each stage of pipe network can be controlled, and the aim of controlling the water mixing ratio can be achieved.

The utility model discloses can be equipped with removable water inner tube 9 that mixes in the water mixing pipe body 4, mix water pipe body 4 through last connecting device and 1 fixed connection of valve body, removable water inner tube 9 and the sealed fixed connection of water mixing pipe body 4, perhaps, can a body coupling, nozzle 7 is just to mixing water inner tube 9 bores for at different levels the pipe network chooses the removable water inner tube that mixes that is fit for according to the difference of pipeline diameter, cooperates the removable nozzle that corresponds, in order to reach the fluid flow proportion equilibrium.

The utility model discloses can be equipped with the annular seal recess on the mounting panel 5, install the sealing washer in the sealed recess, the sealed flange of nozzle 7 is sealed with 5 inter-roots seals of mounting panel through sealing washer 10 to reach the effect that sealing performance is high.

Mix 4 lower extremes of water pipe body through connecting device and 11 fixed connection of diffusion tube down to do benefit to the convenient muddy water pipe body length of changing the suitability as required, reach the effect of carrying out the intensive mixing to hot water and cold water, can also reach simultaneously and carry out quick replacement's effect to removable muddy water inner tube through last connecting device and lower connecting device.

The adjusting device of the utility model can adopt a manual adjusting device and an intelligent electric adjusting device, the utility model preferably adopts the intelligent electric adjusting device which comprises a control device 12, a servo motor (not shown), a connecting body 13, a connecting shaft 14, a sliding bearing 15 and a guide block 16,

the lower end of the connecting body 14 is fixedly connected with the valve body 1 through a fixing bolt and a sealing ring, the upper end of the connecting body is fixedly connected with a servo motor shell, the connecting body 14 is vertically provided with a connecting shaft through hole, the side wall of the connecting body 14 is axially provided with a guide long hole 17, the servo motor is controlled by a control device 12, the outer part of an output shaft of the servo motor is rotatably connected with the connecting body 14 through a sliding bearing 15, the end surface of the output shaft 18 of the servo motor is provided with a counter bore along the axis, a small hole of the,

the connecting shaft 14 is sealed with the connecting shaft through a sealing ring and passes through the connecting shaft through a connecting shaft through hole of the connecting body 13 in a lifting way, the lower end of the connecting shaft is fixedly connected with the valve core 8, the upper end of the connecting shaft is in threaded connection with a threaded hole section of the output shaft 18 of the servo motor through a threaded section,

the guide block 16 is arranged in the guide long hole 17 and is fixedly connected with the connecting shaft 14, so that the servo motor is controlled to rotate by a device in the through hole, the connecting shaft 14 is driven to axially move along the through hole of the connecting shaft, and in the moving process of the connecting shaft 14, the connecting shaft 14 is limited to axially move along the guide long hole 17 through the guide block 16.

The utility model discloses can install the check valve on the body of water absorption 3 to do benefit to and prevent to enter into the water in the valve body backward flow again.

The utility model relates to a diffusion tube lower end connecting pipe section, the connecting pipe section is provided with a movable flange part which comprises an upper baffle ring plate 19, a lower baffle ring plate 20, a movable flange plate 21, a limiting ring 22, an end face seal ring 23 and a limiting baffle 24, the outer wall of the connecting pipe body is fixedly sleeved with the upper baffle ring plate 19 and the lower baffle ring plate 20 at intervals along the axial direction in sequence by the end face, an inserting gap 25 is formed between the upper baffle ring plate 19 and the lower baffle ring plate 20, the upper end face of the upper baffle ring plate 19 is provided with at least one seal groove 26 by taking the axis as the center of circle, the end face seal ring 23 is arranged in the seal groove 26 to facilitate the end face seal of the connecting part and prevent the fluid leakage,

at least two limiting blocking pieces 24 are fixedly inserted in the insertion gap 25 in the circumferential direction to achieve the effect of quick assembly and disassembly, the inner walls of the limiting blocking pieces 24 are abutted against the outer wall of the connecting pipe body 27, the upper end faces are abutted against the upper ring baffle 19, the lower end faces are abutted against the lower ring baffle 20, the limiting blocking pieces 24 are partially exposed out of the upper ring baffle 19 and the lower ring baffle 20,

mounting holes are circumferentially arranged on the end face of the movable flange 21 at intervals, the movable flange 21 is sleeved on the connecting pipe body 27, a limiting ring 22 is arranged between the movable flange 21 and the lower retaining plate 20, the inner ring of the limiting ring 22 is in clearance fit with the lower retaining plate 20, the diameter of the outer ring is larger than the outer diameter of the limiting retaining plate 24, the outer ring of the limiting ring 22 is fixedly connected with the lower end of the inner ring of the movable flange 21,

when the movable flange 21 is fixedly connected with the fixed flange, the limiting ring 22 on the movable flange 21 is blocked by the limiting blocking piece 24, the upper end surface of the limiting ring is on the same plane as the upper end surface of the upper blocking ring plate 19, so that the sealing performance when the movable flange is connected with the pipeline fixed flange is ensured, the movable flange 21 can rotate circumferentially on the connecting pipe body 27 to quickly align to the mounting hole on the fixed flange on the pipeline, and the connecting pipe body and the pipeline fixed flange are quickly and fixedly connected through the fixing bolt and the fixing nut.

The utility model discloses can go up the ring board 19 and be equipped with connecting block 28 with 20 circumference intervals of ring board down to do benefit to the joint strength of ring board and lower ring board in the reinforcing, can also reach the effect of practicing thrift raw and other materials simultaneously.

The utility model discloses when the installation, three-way valve body upper end connection intelligent control device, intelligent control device and heating system are wired or wireless connection, intelligent control device control adjusting device action to reach intelligent control's effect. The inlet of the water inlet pipe body of the three-way valve body is connected with the heat supply pipe network at the near end of a power station of the heat supply pipe network or the water inlet end with sufficient pressure difference, the suction inlet of the water suction pipe body is connected with the low-temperature low-pressure water suction pipeline, and the outlet of the diffusion pipe body is connected with the water inlet pipeline of the heat supply pipe network.

When the water supply device is used, high-temperature and high-pressure heat supply network water enters the water inlet pipe body 2, the speed is increased after passing through a gap between the valve core and the nozzle 7, low-temperature and low-pressure water on the water return side in the water suction pipe body 3 is sucked, then the water enters the cylindrical water mixing pipe body 4 to be mixed, pressurized and reduced in speed, then the water enters the diffusion pipe 11 section to be further pressurized and reduced in speed, the pressure and temperature of the high-temperature and high-pressure water supply are reduced, the flow rate after mixing is increased, and the water enters a building and then becomes safe low-temperature, low-pressure and large-flow hot water; in the use process, when a pipeline with a small diameter, such as a DN40 pipeline, is encountered, the nozzle 7 and the valve core can be replaced by models corresponding to the water mixing ratio and the water flow rate, and meanwhile, the water mixing pipe body 4 and the diffusion pipe can be replaced by models corresponding to the nozzle flow rate and the water mixing ratio due to the small diameter of the pipeline; when a pipeline with a large diameter is encountered, such as a DN60 pipeline, the adjusting device 5 needs to be firstly detached, the connector is detached from the three-way valve body, the guide block is detached from the guide long hole, one end of the guide block is connected with the connecting shaft through screw thread, then the valve core is reversely rotated to replace the valve core, the valve core 8 is replaced by a model matched with the nozzle, then the nozzle 7 is reversely rotated and taken out, the nozzle 7 with a proper caliber is fixed on the mounting plate 6 through screw thread, meanwhile, the adjusting device is rapidly mounted on the three-way valve body, then, the water mixing pipe body 4 is respectively separated from the three-way valve body 1 and the diffusion pipe 11, the water mixing inner pipe 9 in the water mixing pipe body 4 is replaced, the flow rate and the water mixing ratio of low-temperature water sucked into the water mixing inner pipe 9 and high-temperature hot water jetted out from the replaceable nozzle 7 meet the requirements, because the calibers of the nozzle 7 and the water, need not to whole the changing to three-way valve body, adjusting device's other parts and intelligent control device for the use of three-way valve body has reached the commonality, and not only greatly reduced the heat waste of heat supply pipeline, saved the heat, the heat of heat supply pipe network reaches the equilibrium in each operation pipe network, and in addition, has still reached energy saving's effect.

The utility model discloses in the installation, can be according to pipeline diameter size, go up connecting device and can select to adopt through the flange, fixing bolt and fixation nut will mix water body and valve body fixed connection, also can adopt internal thread section and external screw thread section will mix water body and valve body fixed connection, lower connecting device can select to adopt through the flange, fixing bolt and fixation nut will mix water body and diffusion tube fixed connection, also can adopt internal thread section and external screw thread section will mix water body and diffusion tube fixed connection.

The utility model discloses a loose flange part is adding man-hour, will accomplish the mounting hole processing on the movable flange dish 21 earlier, then the cover is on connecting the pipeline section, with spacing separation blade fixed insertion in grafting clearance 25, spacing separation blade is located the movable flange dish hole, the third of spacing separation blade has exposed the grafting clearance outside, the spacing ring is located spacing separation blade lower part, and form with movable flange dish one end inner wall body processing, at last fender ring board tip installation end face seal, can process the sealed recess of 2 different diameters, then install the end face seal of two different diameters in sealed recess.

When the utility model discloses when butting with pipeline mounting flange, rotate the loose flange dish, make the mounting hole on the loose flange dish corresponding with the mounting hole on the pipeline flange, then pass mounting hole on the loose flange dish and the mounting hole on the pipeline flange with fixing bolt after fixed nut is fixed, spacing ring and lower retaining ring board through in the loose flange dish are inconsistent, will connect body and pipeline fixed connection together to it is sealed through the end face seal circle between connecting body and pipeline, guaranteed the sealed butt joint of pipeline.

Claims

1. An ejection and suction device capable of adjusting water mixing ratio comprises a three-way valve body, a water inlet pipe body, a water suction pipe body, a water mixing pipe body, a valve core and an adjusting device, wherein the adjusting device is arranged on the three-way valve body, one end of a valve cavity of the three-way valve body is communicated with the water inlet pipe body, the other end of the valve cavity of the three-way valve body is communicated with the water suction pipe body, the lower end of the valve cavity of the three-way valve body is communicated with the water mixing pipe body through a sealing and fixing device, a mounting plate is arranged in the valve cavity of the three-way valve body, the adjusting device controls the valve core to ascend or descend, the water inlet pipe body is respectively sealed and isolated with the water suction pipe body and the water mixing pipe body through the mounting plate, the ejection and suction device is characterized in that a replaceable nozzle is arranged on the mounting plate, the nozzle axis is provided with a horn-shaped jet hole and a cylindrical jet hole which are communicated from top to bottom, the lower end of the nozzle axis corresponds to the end part of the water mixing pipe body, and the valve core can be inserted into the nozzle in a lifting mode.

2. The adjustable water mixing ratio shooting and sucking device as claimed in claim 1, wherein a replaceable water mixing inner pipe is arranged in the water mixing pipe body, the water mixing pipe body is fixedly connected with the valve body through an upper connecting device, the replaceable water mixing inner pipe is fixedly connected with the water mixing pipe body in a sealing manner, and the nozzle faces the caliber of the water mixing inner pipe.

3. The adjustable water mixing ratio injection and suction device as claimed in claim 2, wherein the mounting plate is provided with an annular sealing groove, a sealing ring is mounted in the sealing groove, and the sealing flange of the nozzle is sealed with the mounting plate by the sealing ring.

4. The adjustable water mixing ratio ejection and suction device as claimed in claim 3, wherein the lower end of the water mixing pipe body is fixedly connected with the diffusion pipe through the lower connecting device.

5. The adjustable mixing ratio ejector device of claim 4, wherein the water suction pipe body is provided with a check valve.

6. The shooting and sucking device with the adjustable water mixing ratio as claimed in claim 4 or 5, wherein the upper connecting device fixedly connects the water mixing pipe body with the valve body through two fixing flanges via a fixing bolt and a fixing nut, or fixedly connects the water mixing pipe body with the valve body by adopting an internal thread section and an external thread section;

the lower connecting device is used for fixedly connecting the water mixing pipe body with the diffusion pipe in a mode that the flange, the sealing ring, the fixing bolt and the fixing nut are connected, or the water mixing pipe body is fixedly connected with the diffusion pipe by adopting an internal thread section and an external thread section.

7. The adjustable water mixing ratio shooting and sucking device as claimed in claim 6, wherein the sealing and fixing device is formed by fixedly connecting the inner water mixing pipe with the water mixing pipe body through a thread and then sealing the inner water mixing pipe with the water mixing pipe body through an O-shaped sealing ring, or by fixedly and hermetically inserting the inner water mixing pipe with the water mixing pipe body through a fixed sealing ring.

8. The adjustable jet-suction device according to claim 4, 5 or 7, wherein the lower end of the diffuser pipe is connected with a pipe section, the connecting pipe section is provided with a movable flange component which comprises an upper baffle ring plate, a lower baffle ring plate, a movable flange plate, a limiting ring, an end face seal ring and a limiting baffle plate, the outer wall of the connecting pipe section is sequentially and axially fixed with the upper baffle ring plate and the lower baffle ring plate at intervals by the end face, an inserting gap is formed between the upper baffle ring plate and the lower baffle ring plate, the upper end face of the upper baffle ring plate is provided with at least one seal groove by taking an axis as a circle center, the end face seal ring is arranged in the seal groove, the inserting gap is circumferentially and fixedly inserted with at least two limiting baffle plates, the inner wall of the limiting baffle plate is abutted with the outer wall of the connecting pipe section, the upper end face is abutted with the upper baffle ring plate, and the lower end face is abutted with, and the part of the limiting blocking piece is exposed outside the upper ring blocking plate and the lower ring blocking plate, mounting holes are formed in the end face of the movable flange plate at intervals in the circumferential direction, the movable flange plate is sleeved on the connecting pipe section, a limiting ring is arranged between the movable flange plate and the lower ring blocking plate and located below the lower blocking plate, the inner ring of the limiting ring is in clearance fit with the lower ring blocking plate, the diameter of the outer ring is larger than the outer diameter of the limiting blocking piece, the outer ring of the limiting ring is fixedly connected with the lower end of the inner ring of the movable flange plate, and when the movable flange plate is fixedly connected with the fixed flange plate, the limiting ring on the movable flange plate is blocked by the limiting blocking piece, and the upper end face of the limiting ring on the same plane.