Nozzle mounting device

Abstract

The utility model discloses a nozzle mounting device. The nozzle mounting device comprises a mounting shell, a water inlet pipe, a sealing pipe, a moving assembly and a reset piece used for resetting of the moving assembly. The water inlet pipe extends into the mounting cavity of the mounting shell and is provided with a first through hole in the side wall. The sealing pipe is located in the mounting cavity and is provided with a second through hole in the side wall. The moving assembly comprises a first pipe section and a second pipe section which are sequentially connected, and a third through hole is formed in the side wall of the first pipe section. The second pipe section is inserted into the sealing pipe, a fourth through hole is formed in the side wall, and the nozzle is installed at the end, away from the connecting section, of the second pipe section. And when the nozzle stops using, the first through hole and the third through hole are staggered, the second through hole and the fourth through hole are staggered, and the nozzle and the water inlet pipe are disconnected, so that suspended particles in the environment are prevented from entering the water inlet pipe. When the nozzle needs to be used, water in the water inlet pipe can be conveyed to the nozzle, under the impact effect of water flow, suspended particles accumulated in the nozzle are flushed away, the water flow is discharged through the nozzle, and normal use of the nozzle is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of nozzles, and in particular relates to a nozzle installation device. Background Art

[0002] In the high temperature, high pressure and high dust environment, industries such as metallurgy, electric power and chemical industry usually use spiral nozzles made of stainless steel, ceramics, silicon carbide and other materials for cooling, dust removal, desulfurization and denitrification. Since the atomization angle and flow parameters of the spiral nozzle can be selected, and the pressure of the cooling medium itself can be used for atomization, it has the characteristics of good cooling and dust removal effects, water saving and energy saving, and can better adapt to the environment prone to corrosion, heat damage and adhesion.

[0003] In the related art, when the spiral nozzle is out of use, suspended particulate matter in the environment enters the pipeline through the nozzle, and long-term accumulation causes the pipeline and nozzle to be blocked, affecting the normal use of the nozzle. Utility Model Content

[0004] In order to solve the technical problem in the related art that during the deactivation of the spiral nozzle, suspended particles in the environment enter the pipeline through the nozzle, and long-term accumulation leads to blockage of the pipeline and the nozzle, affecting the normal use of the nozzle, the present application provides a nozzle installation device, the nozzle installation device comprising:

[0005] A mounting shell having a mounting chamber and a first mounting hole and a second mounting hole communicating with the mounting chamber;

[0006] a water inlet pipe installed in the first installation hole and extending into the installation chamber, the water inlet pipe and the inner wall of the installation shell are spaced apart to form a first space, and a first through hole communicating with the first space is formed on the side wall of the water inlet pipe;

[0007] A sealing tube is installed in the second installation hole and is located in the installation chamber. A gap between the sealing tube and the inner wall of the installation shell is set to form a second space. A second through hole communicating with the second space is opened on the side wall of the sealing tube.

[0008] A movable assembly is slidably installed in the installation chamber along a preset direction, and the movable assembly includes a first pipe section, a connecting section and a second pipe section arranged in sequence along the preset direction, the first pipe section is movably sleeved on the outside of the water inlet pipe, and a third through hole is provided on the side wall of the first pipe section; both ends of the connecting section along the preset direction are sealed and connected to the first pipe section and the second pipe section, and are movably connected to the inner wall of the installation shell; the connecting section is provided with a connecting hole connecting the first space and the second space; the second pipe section is inserted into the sealing tube, and a fourth through hole is provided on the side wall of the second pipe section, and an end of the second pipe section away from the connecting section forms an installation position for installing a nozzle;

[0009] A reset member, acting on the moving assembly and the sealing tube, for resetting the moving assembly;

[0010] Wherein, when the moving component moves along the preset direction, the first through hole is connected to or staggered with the third through hole, and the second through hole is connected to or staggered with the fourth through hole.

[0011] In some embodiments, a plurality of the first through hole, the second through hole, the third through hole and the fourth through hole are provided;

[0012] The first through hole corresponds to the third through hole one-to-one, and the second through hole corresponds to the fourth through hole one-to-one. When the moving component moves along the preset direction, the first through hole is connected or staggered with the corresponding third through hole, and the second through hole is connected or staggered with the corresponding fourth through hole.

[0013] In some embodiments, the plurality of first through holes are distributed in sequence along the circumference and axial direction of the water inlet pipe; the plurality of second through holes are distributed in sequence along the circumference and axial direction of the sealing tube; the plurality of third through holes are distributed in sequence along the circumference and axial direction of the first pipe segment, and the plurality of fourth through holes are distributed in sequence along the circumference and axial direction of the second pipe segment.

[0014] In some embodiments, a notch is disposed on a circumferential surface of the connecting section, and the notch and an inner wall of the mounting shell are arranged to form the communicating hole.

[0015] In some embodiments, a plurality of the communicating holes are provided, and the plurality of communicating holes are located on the same circumference.

[0016] In some embodiments, a limiting ring is provided on the inner wall of the sealing tube;

[0017] The moving component also includes a guiding section connecting the connecting section and the second pipe section, the end of the guiding section along the preset direction is sealed and connected to the second pipe section, the radial dimension of the connecting section along the preset direction is larger than the radial dimension of the guiding section along the preset direction, and the reset member acts on the connecting section and the limit ring.

[0018] In some embodiments, the reset member is a spring, and two ends of the spring are respectively in contact with the connecting section and the limiting ring.

[0019] In some embodiments, the nozzle installation device further comprises a protective sleeve located in the sealing tube, wherein the protective sleeve is sleeved outside the spring, wherein one end of the protective sleeve abuts against the limiting ring, and the other end extends to the connecting section.

[0020] In some embodiments, the first pipe segment, the connecting segment and the guiding segment are an integrated structure.

[0021] In some embodiments, the mounting housing and / or the sealing tube extend outside the nozzle.

[0022] According to the nozzle installation device provided by one or more embodiments of the present application, the nozzle installation device includes a mounting shell, a water inlet pipe, a sealing tube, a moving assembly and a reset member. The water inlet pipe extends into the mounting chamber of the mounting shell and a first through hole is provided on the side wall, and the sealing tube is located in the mounting chamber and a second through hole is provided on the side wall. The moving assembly includes a first pipe section, a connecting section with a connecting hole and a second pipe section connected in sequence, the first pipe section is movably sleeved on the outside of the water inlet pipe and a third through hole is provided on the side wall. The second pipe section is inserted into the sealing tube and a fourth through hole is provided on the side wall, and the nozzle is installed at the end of the second pipe section away from the connecting section. The reset member acts on the moving assembly and the sealing tube. When the nozzle is stopped from being used to deliver water, the first through hole and the third through hole are staggered, the second through hole and the fourth through hole are staggered, the passage between the nozzle and the water inlet pipe is disconnected, and suspended particles in the environment can enter the nozzle but cannot enter the water inlet pipe. When it is necessary to use the nozzle to deliver water, the water in the water inlet pipe can be delivered to the nozzle. Under the impact of the water flow, the suspended particles accumulated in the nozzle are flushed away, allowing the water flow to be discharged through the nozzle, ensuring the normal use of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] In the attached picture: Figure 1 A schematic diagram of the structure of a nozzle installation device in one or more embodiments of the present application;

[0025] Figure 2 It is a schematic diagram of the structure of the mobile component in one or more embodiments of the present application.

[0026] Description of reference numerals:

[0027] 1. Water inlet pipe; 11. First through hole; 2. Mounting shell; 21. First space; 22. Second space; 3. First pipe section; 31. Third through hole; 32. Limiting protrusion; 33. Sealing pad; 34. Connecting thread; 4. Reset member; 5. Protective sleeve; 6. Sealing tube; 61. Second through hole; 62. Limiting ring; 7. Second pipe section; 71. Fourth through hole; 8. Nozzle; 9. Connecting section; 10. Guide section; S. Preset direction. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] Some embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0030] In the high temperature, high pressure and high dust environment, industries such as metallurgy, electric power and chemical industry usually use spiral nozzles made of stainless steel, ceramics, silicon carbide and other materials for cooling, dust removal, desulfurization and denitrification. Since the atomization angle and flow parameters of the spiral nozzle can be selected, and the pressure of the cooling medium itself can be used for atomization, it has the characteristics of good cooling and dust removal effects, water saving and energy saving, and can better adapt to the environment prone to corrosion, heat damage and adhesion.

[0031] In the related art, when the spiral nozzle is out of use, suspended particulate matter in the environment enters the pipeline through the nozzle, and long-term accumulation causes the pipeline and nozzle to be blocked, affecting the normal use of the nozzle.

[0032] In order to solve the technical problem in the related art that during the deactivation of the spiral nozzle, the suspended particles in the environment enter the pipeline through the nozzle, and the long-term accumulation leads to the blockage of the pipeline and the nozzle, thus affecting the normal use of the nozzle, the present application provides a nozzle installation device, please refer to Figure 1 to Figure 2 The nozzle installation device includes a mounting shell 2, a water inlet pipe 1, a sealing pipe 6, a moving component and a reset component 4.

[0033] The mounting shell 2 has a mounting chamber and a first mounting hole and a second mounting hole connected to the mounting chamber. The water inlet pipe 1 is installed in the first mounting hole and extends into the mounting chamber. The water inlet pipe 1 is spaced apart from the inner wall of the mounting shell 2 to form a first space 21. The side wall of the water inlet pipe 1 is provided with a first through hole 11 connected to the first space 21.

[0034] The sealing tube 6 is installed in the second installation hole and is located in the installation chamber. A gap is set between the sealing tube 6 and the inner wall of the installation shell 2 to form a second space 22 . A second through hole 61 communicating with the second space 22 is opened on the side wall of the sealing tube 6 .

[0035] The moving component is slidably installed in the installation chamber along a preset direction S (along the axial direction of the water inlet pipe 1). The moving component includes a first pipe section 3, a connecting section 9 and a second pipe section 7 arranged in sequence along the preset direction S. The first pipe section 3 is movably sleeved on the outside of the water inlet pipe 1, and a third through hole 31 is provided on the side wall of the first pipe section 3. The connecting section 9 is sealed and connected to the first pipe section 3 and the second pipe section 7 at both ends along the preset direction S, and is movably connected to the inner wall of the installation shell 2. The connecting section 9 is provided with a connecting hole connecting the first space 21 and the second space 22. The second pipe section 7 is inserted into the sealing tube 6, and a fourth through hole 71 is provided on the side wall of the second pipe section 7. The end of the second pipe section 7 away from the connecting section 9 forms an installation position for installing the nozzle 8. The reset member 4 acts on the moving component and the sealing tube 6 for resetting the moving component.

[0036] When the nozzle 8 is needed to deliver water, when the moving assembly moves along the preset direction S, the first through hole 11 corresponds to and is connected with the third through hole 31, the second through hole 61 corresponds to and is connected with the fourth through hole 71, and the first through hole 11 of the water inlet pipe 1, the third through hole 31 of the first pipe section 3, the first space 21, the connecting hole, the second space 22, the second through hole 61 of the sealing tube 6 and the fourth through hole 71 of the second pipe section 7 form a passage, so that the water in the water inlet pipe 1 is discharged through the nozzle 8 in sequence through the first pipe section 3, the first space 21, the connecting hole, the second space 22, the sealing tube 6 and the second pipe section 7. When the nozzle 8 is stopped from being used to deliver water, the first through hole 11 and the third through hole 31 are staggered, the second through hole 61 and the fourth through hole 71 are staggered, the water inlet pipe 1 is sealed with the first pipe section 3, the passage between the nozzle 8 and the water inlet pipe 1 is disconnected, and the suspended particles in the environment can enter the nozzle 8 but cannot enter the water inlet pipe 1. When the nozzle 8 is needed to deliver water, the water in the water inlet pipe 1 can be delivered to the nozzle 8. Under the impact of the water flow, the suspended particles accumulated in the nozzle 8 are flushed away, allowing the water flow to be discharged through the nozzle 8, thereby ensuring the normal use of the nozzle 8.

[0037] To increase the flow rate of the liquid in the nozzle 8, refer to Figure 1 to Figure 2 The first through hole 11, the second through hole 61, the third through hole 31 and the fourth through hole 71 are each provided with a plurality. The first through hole 11 corresponds to the third through hole 31 one by one, and the second through hole 61 corresponds to the fourth through hole 71 one by one.

[0038] A plurality of first through holes 11 are sequentially distributed along the circumference and axial direction of the water inlet pipe 1, and a plurality of third through holes 31 are sequentially distributed along the circumference and axial direction of the first pipe section 3. The water inlet pipe 1 may be provided with three rows of first through holes 11 along the axial direction, and each row includes four first through holes 11 evenly arranged around the circumferential direction. The third through holes 31 on the first pipe section 3 are elliptical or oblong with equal diameters and evenly arranged, corresponding one to one with the first through holes 11 of the water inlet pipe 1. It should be noted that the number of the first through holes 11 and the number of the third through holes 31 can be set according to actual needs, and this application does not limit it.

[0039] The area of ​​the water outlet surface formed by the multiple first through holes 11 on the water inlet pipe 1 is larger than the cross-sectional area of ​​the water inlet pipe 1, and usually the area of ​​the water outlet surface formed by the multiple first through holes 11 on the water inlet pipe 1 is 1.1 to 1.2 times the cross-sectional area of ​​the water inlet pipe 1. The diameter of the third through hole 31 is larger than the diameter of the first through hole 11, and usually the diameter of the third through hole 31 is 1.2 to 1.5 times the diameter of the first through hole 11.

[0040] The plurality of second through holes 61 are sequentially distributed along the circumference and axial direction of the sealing tube 6, and the plurality of fourth through holes 71 are sequentially distributed along the circumference and axial direction of the second pipe section 7. The second pipe section 7 is provided with three rows of fourth through holes 71 along the axial direction, and each row includes four fourth through holes 71 evenly arranged around the circumferential direction. The second through holes 61 on the sealing tube 6 are elliptical or circular with equal diameters and evenly arranged, and correspond one to one with the fourth through holes 71 of the second pipe section 7. It should be noted that the number of the second through holes 61 and the number of the fourth through holes 71 can be set according to actual needs, and this application does not limit it.

[0041] The area of ​​the water inlet surface formed by the plurality of fourth through holes 71 on the second pipe segment 7 is larger than the cross-sectional area of ​​the second pipe segment 7, and usually the area of ​​the water inlet surface formed by the plurality of fourth through holes 71 on the second pipe segment 7 is 1.1 to 1.2 times the cross-sectional area of ​​the second pipe segment 7. The diameter of the second through hole 61 on the sealing tube 6 is larger than the diameter of the fourth through hole 71 on the second pipe segment 7, and usually the diameter of the second through hole 61 on the sealing tube 6 is 1.2 to 1.5 times the diameter of the fourth through hole 71 on the second pipe segment 7. At the same time, the cross-sectional area of ​​the water inlet pipe 1 is larger than the cross-sectional area of ​​the second pipe segment 7, and usually the cross-sectional area of ​​the water inlet pipe 1 is 1.05 to 1.2 times the cross-sectional area of ​​the second pipe segment 7.

[0042] The liquid can be discharged through the nozzle 8 in sequence through the first through hole 11 of the water inlet pipe 1, the third through hole 31 of the first pipe section 3, the first space 21, the connecting hole, the second space 22, the second through hole 61 of the sealing tube 6 and the fourth through hole 71 of the second pipe section 7. In order to facilitate the transportation of the liquid in the first space 21 to the second space 22, a notch is provided on the circumferential surface of the connecting section 9, and the notch and the inner wall of the mounting shell 2 are surrounded to form a connecting hole, so that the liquid in the first space 21 can be transported to the second space 22 through the connecting hole.

[0043] The edge of the connecting section 9 is provided with a first stopper, and the inner wall of the mounting shell 2 is provided with a second stopper, and the first stopper cooperates with the second stopper to limit the connecting section 9 to reciprocate along a preset direction. The mounting shell 2 can be tubular, and under the limiting action of the first stopper and the second stopper, the connecting section 9 can reciprocate along a preset direction S, preventing the water inlet pipe 1 movably connected to the first pipe section 3 and the second pipe section 7 movably connected to the sealing pipe 6 from deviating from the central axis of the mounting shell 2, thereby ensuring the smooth operation of the moving assembly in the mounting shell 2.

[0044] The first limiting member and the second limiting member are clearance-matched, and the clearance between the first limiting member and the second limiting member forms a connecting hole, so that the liquid in the first space 21 can be transported to the second space 22 through the connecting hole.

[0045] The connecting section 9 can be set to be circular, the first limiting member can be a limiting protrusion 32 and the limiting protrusion 32 extends along the preset direction S, the second limiting member is a limiting groove, the limiting protrusion 32 is clamped in the limiting groove and the limiting protrusion 32 and the limiting groove are gap-matched, so that the connecting section 9 can move back and forth along the preset direction S, and the liquid in the water inlet pipe 1 can be transported to the second space 22 through the connecting hole.

[0046] In some embodiments, the first limiting member may also be a limiting protrusion 32, the second limiting member may be a limiting groove and the limiting groove extends along a preset direction, and the limiting protrusion 32 is clamped in the limiting groove. It can be set according to actual needs and is not limited in this application.

[0047] In order to increase the flow rate of liquid transported from the first space 21 to the second space 22, a plurality of connecting holes are provided, and the plurality of connecting holes are located on the same circumference, so that the liquid in the first space 21 can be transported to the second space 22 through the plurality of connecting holes located on the circumference of the edge of the connecting section 9, thereby increasing the liquid transport flow rate and improving the liquid transport efficiency. The plurality of connecting holes are located on the same circumference, so that the liquid in the water inlet pipe 1 can be evenly distributed in the installation shell 2. At the same time, it can also prevent the water inlet pipe 1 from deviating from the central axis of the installation shell 2, reduce the resistance generated by the movement of the first pipe section 3, the connecting section 9 and the second pipe section 7 in the installation shell 2, and improve the smoothness of the movement of the first pipe section 3, the connecting section 9 and the second pipe section 7 in the installation shell 2.

[0048] When the nozzle 8 is needed to deliver water, the water inlet pipe 1 is filled with liquid. Under the impact of the water flow, the connecting section 9 moves toward the sealing tube 6 along the preset direction S and abuts against the sealing tube 6, so that the first through hole 11 corresponds to and communicates with the third through hole 31, and the second through hole 61 corresponds to and communicates with the fourth through hole 71, so that the liquid can be discharged from the nozzle 8 through the first through hole 11 of the water inlet pipe 1, the third through hole 31 of the first pipe section 3, the first space 21, the communicating hole, the second space 22, the second through hole 61 of the sealing tube 6, and the fourth through hole 71 of the second pipe section 7. When the nozzle 8 is stopped from being used to deliver water, the connecting section 9 is reset to abut against the end of the water inlet pipe 1, so that the first through hole 11 and the third through hole 31 are staggered, the second through hole 61 and the fourth through hole 71 are staggered, the water inlet pipe 1 and the first pipe section 3 are sealed, and the passage between the nozzle 8 and the water inlet pipe 1 is disconnected.

[0049] In order to facilitate the resetting of the connecting section 9, a limiting ring 62 is provided on the inner wall of the sealing tube 6. Figure 1 to Figure 2The moving assembly also includes a guide section 10 connecting the connecting section 9 and the second pipe section 7. The first pipe section 3, the connecting section 9 and the guide section 10 are an integrated structure, which can improve the overall strength. The end of the guide section 10 along the preset direction S is fixedly connected to the second pipe section 7 through a connecting thread 34 to be sealed and connected to the second pipe section 7, so that the guide section 10 is fixedly connected to the second pipe section 7. The radial dimension of the connecting section 9 along the preset direction S is greater than the radial dimension of the guide section 10 along the preset direction S. The reset member 4 acts on the connecting section 9 and the limit ring 62. Under the action of the reset member 4, the connecting section 9 can be reset. The reset member 4 is a spring, and the two ends of the spring are respectively in contact with the connecting section 9 and the limit ring 62, so that under the elastic force of the spring, the connecting section 9 can be reset, thereby improving the convenience of resetting the connecting section 9.

[0050] In order to improve the tightness of the abutment between the end of the sealing tube 6 and the connecting section 9, please refer to Figure 1 to Figure 2 The nozzle installation device also includes a protective sleeve 5 located in the sealing tube 6, and the protective sleeve 5 is sleeved outside the spring. One end of the protective sleeve 5 abuts against the limiting ring 62, and the other end extends to the connecting section 9, which can prevent liquid and dust from entering the working space of the spring, prevent corrosion or soaking of the spring, and ensure the normal use of the spring.

[0051] In order to further improve the tightness of the abutment between the end of the sealing tube 6 and the connecting section 9, a sealing groove is opened on the connecting section 9 at a position corresponding to the protective sleeve 5, and the sealing groove is filled with a sealing gasket 33. The sealing tube 6 abuts against the sealing gasket 33 to close the working space of the spring, prevent the cooling medium and dust from entering the working space, prevent corrosion or soaking of the spring, and thus ensure the normal use of the spring.

[0052] The protective sleeve 5 is located in the sealing tube 6 to prevent the cooling medium and dust from entering the action space of the spring, to prevent the spring from being corroded or soaked, and to ensure the normal use of the spring. When the spring is in a compressed state, the end of the sealing tube 6 abuts against the sealing gasket 33 in the sealing groove of the connecting section 9 to seal the action space of the spring, to prevent the cooling medium and dust from entering the action space, and to ensure the normal use of the spring. At the same time, an effective deformation distance is reserved for the spring to prevent the spring from being compressed for a long time and exceeding the limit and failing, thereby increasing the service life of the spring.

[0053] When the nozzle 8 stops being used to deliver water, the mounting shell 2 extends outside the nozzle 8, and the sealing tube 6 also extends outside the nozzle 8, which can effectively prevent the nozzle 8 from being hit or damaged by environmental materials, thereby increasing the service life of the nozzle 8. The nozzle 8 extends out of the sealing tube 6 under the push of high-pressure liquid to discharge the liquid, and when the nozzle 8 stops draining water, the nozzle 8 retreats into the sealing tube 6 under the thrust of the spring, thereby preventing the nozzle 8 from being hit or damaged by environmental materials, thereby increasing the service life of the nozzle 8.

[0054] In some embodiments, the mounting shell 2 extends outside the nozzle 8 , or the sealing tube 6 extends outside the nozzle 8 , which can also effectively prevent the nozzle 8 from being impacted and damaged by environmental materials, thereby increasing the service life of the nozzle 8 .

[0055] When it is necessary to use the nozzle 8 to deliver water, the moving component moves along the preset direction S, so that the end of the sealing tube 6 abuts against the connecting section 9, and at the same time the spring is compressed to push the nozzle 8 out of the mounting shell 2. At this time, the first through hole 11 corresponds to and is connected with the third through hole 31, and the second through hole 61 corresponds to and is connected with the fourth through hole 71, so that the liquid can pass through the first through hole 11 of the water inlet pipe 1, the third through hole 31 of the first pipe section 3, the first space 21, the connecting hole, the second space 22, the second through hole 61 of the sealing tube 6 and the fourth through hole 71 of the second pipe section 7 in sequence and be discharged through the nozzle 8. The high-pressure liquid is atomized and sprayed out through the nozzle 8 to cool the environment and remove dust.

[0056] When the nozzle 8 stops being used to deliver water, the connecting section 9 of the moving assembly, under the elastic force of the compressed spring, the nozzle 8 is retracted into the sealing tube 6 to prevent the nozzle 8 from being hit and damaged by environmental materials, thereby increasing the service life of the nozzle 8. At this time, the first through hole 11 and the third through hole 31 are staggered, the second through hole 61 and the fourth through hole 71 are staggered, the water inlet pipe 1 and the first pipe section 3 are sealed, and the passage between the nozzle 8 and the water inlet pipe 1 is disconnected to prevent dust in the environment from entering the water inlet pipe 1. At the same time, the liquid retained in the water inlet pipe 1 can also be used to cool the nozzle installation device to ensure the normal use of the nozzle 8 and increase the service life of the nozzle 8.

[0057] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A nozzle installation device, characterized in that: The nozzle mounting device comprises: A mounting shell having a mounting chamber and a first mounting hole and a second mounting hole communicating with the mounting chamber; a water inlet pipe installed in the first installation hole and extending into the installation chamber, the water inlet pipe and the inner wall of the installation shell are spaced apart to form a first space, and a first through hole communicating with the first space is formed on the side wall of the water inlet pipe; A sealing tube is installed in the second installation hole and is located in the installation chamber. A gap between the sealing tube and the inner wall of the installation shell is set to form a second space. A second through hole communicating with the second space is opened on the side wall of the sealing tube. A movable assembly is slidably installed in the installation chamber along a preset direction, and the movable assembly includes a first pipe section, a connecting section and a second pipe section arranged in sequence along the preset direction, the first pipe section is movably sleeved on the outside of the water inlet pipe, and a third through hole is provided on the side wall of the first pipe section; both ends of the connecting section along the preset direction are sealed and connected to the first pipe section and the second pipe section, and are movably connected to the inner wall of the installation shell; the connecting section is provided with a connecting hole connecting the first space and the second space; the second pipe section is inserted into the sealing tube, and a fourth through hole is provided on the side wall of the second pipe section, and an end of the second pipe section away from the connecting section forms an installation position for installing a nozzle; A reset member, acting on the moving assembly and the sealing tube, for resetting the moving assembly; Wherein, when the moving component moves along the preset direction, the first through hole is connected to or staggered with the third through hole, and the second through hole is connected to or staggered with the fourth through hole.

2. The nozzle installation device according to claim 1, characterized in that: The first through hole, the second through hole, the third through hole and the fourth through hole are each provided in plurality; The first through hole corresponds to the third through hole one-to-one, and the second through hole corresponds to the fourth through hole one-to-one. When the moving component moves along the preset direction, the first through hole is connected or staggered with the corresponding third through hole, and the second through hole is connected or staggered with the corresponding fourth through hole.

3. The nozzle installation device according to claim 2, characterized in that: The plurality of first through holes are distributed in sequence along the circumference and axial direction of the water inlet pipe; the plurality of second through holes are distributed in sequence along the circumference and axial direction of the sealing tube; the plurality of third through holes are distributed in sequence along the circumference and axial direction of the first pipe section, and the plurality of fourth through holes are distributed in sequence along the circumference and axial direction of the second pipe section.

4. The nozzle installation device according to claim 1, characterized in that: A notch is arranged on the peripheral surface of the connecting section, and the notch and the inner wall of the mounting shell are arranged to form the communicating hole.

5. The nozzle mounting device according to claim 4, characterized in that: A plurality of the communicating holes are provided, and the plurality of communicating holes are located on the same circumference.

6. The nozzle mounting device according to any one of claims 1 to 5, characterized in that: The inner wall of the sealing tube is provided with a limiting ring; The moving component also includes a guiding section connecting the connecting section and the second pipe section, the end of the guiding section along the preset direction is sealed and connected to the second pipe section, the radial dimension of the connecting section along the preset direction is larger than the radial dimension of the guiding section along the preset direction, and the reset member acts on the connecting section and the limit ring.

7. The nozzle mounting device according to claim 6, characterized in that: The reset member is a spring, and two ends of the spring are respectively in contact with the connecting section and the limiting ring.

8. The nozzle mounting device according to claim 7, characterized in that: The nozzle installation device also includes a protective sleeve located in the sealing tube, the protective sleeve is sleeved outside the spring, one end of the protective sleeve abuts against the limiting ring, and the other end extends to the connecting section.

9. The nozzle mounting device according to claim 6, characterized in that: The first pipe section, the connecting section and the guiding section are an integrated structure.

10. The nozzle mounting device according to claim 1, characterized in that: The mounting shell and / or the sealing tube extend outside the nozzle.

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