CN115283337A - Rotary spraying nozzle for washing - Google Patents

Abstract

The invention relates to the field of cleaning, in particular to a rotary jet nozzle for flushing. A rotary jet spray head for flushing includes a storage tank for storing cleaning liquid, a conduit and a spray device. In the present invention, the length of the spray pipe extending into the lumen is adjusted by adjusting the component, and the number of water outlets that can communicate with the spray cavity is adjusted, thereby adjusting the impact force of the cleaning agent being sprayed. After the switch is turned on, the spray chamber is filled with flushing agent, and part of the water outlet is communicated with the spraying chamber through the pushing component and the blocking component, and the driven component is driven to compress the spraying chamber, so that the flushing agent is sprayed out to complete the flushing work. When the extension length is long, a few water outlets are connected with the jet cavity, and the cleaning agent sprayed out after compressing the jet cavity has a large impact force, which can fully flush the tube cavity. When the extension length of the injection pipe is short, most of the water outlets are connected with the injection cavity, and the impact force of the cleaning agent sprayed out after compressing the injection cavity is small, which ensures the cleaning effect and avoids damage to the cavity.

Description

A rotary spray nozzle for flushing

technical field

The invention relates to the field of cleaning, in particular to a rotary spray nozzle for flushing.

Background technique

The spraying device usually includes a spray head and a pressurizing device. The liquid is first pressurized by the pressurizing device, and then the liquid is sprayed out from the spray head. Because of the high efficiency and good effect of the spraying device, it is often used to clean tubular daily necessities, produce The inner wall of the product, when the pressure applied by the pressurizing device is greater, the impact force of the liquid sprayed into the pipeline is greater. When the impact force is greater than the surface adhesion between the dirt and the inner wall of the pipe, the high-pressure water flow will peel off the dirt and wash it away. For example, publication number is that the Chinese patent of CN215543421U discloses a kind of pipe interior with high-pressure cleaning machine nozzle.

However, when the spraying device in the prior art cleans the pipeline, it cannot adjust the applied pressure according to the length of the pipeline, that is, it cannot adjust the impact force of the cleaning agent after it is sprayed, so it cannot clean the brittle and easily damaged tubular Items, poor universality.

Contents of the invention

The invention provides a rotary spray nozzle for flushing, which solves the problem that the existing cleaning equipment cannot adjust the impact force of the sprayed liquid according to the length of the inserted tube cavity, and avoids the problem of poor cleaning effect caused by small impact force , It also avoids the problem that the lumen is damaged due to the large impact force in order to ensure the cleaning effect.

A rotary spray head for flushing according to the present invention adopts the following technical scheme: it includes a storage tank, a conduit and a spray device; the spray device includes a spray pipe, a plurality of blocking parts, an adjustment part and a pushing part; the spray pipe is inserted into the pipe and It communicates with the conduit; the end of the jet tube away from the conduit is fixed with a water outlet plate; the conduit is provided with a rotatable blocking plate; the water outlet plate and the blocking plate define the first accommodation space, and the water outlet plate is uniformly arranged along the circumference Multiple stoppers, multiple stoppers divide the first accommodating space into multiple injection chambers; the side of the injection chamber facing the center of the injection pipe is provided with a baffle to block the injection chamber; the water outlet plate is provided with multiple groups of water outlets , each group of water outlets is facing one injection chamber; there are multiple water inlets on the blocking plate, and the water inlets are facing the block in the initial state; each blocking part is arranged in one injection chamber, and the blocking parts include water baffles group, the water retaining plate group is an expansion plate, the expansion plate can move along the radial direction of the injection pipe; the expansion plate is equipped with a tension spring; the water retaining part is configured so that the expansion plate in the initial state prevents the water outlet from communicating with the injection chamber; the tension spring The number of water outlets connected to the injection chamber does not increase when the force is stored, and the number of water outlets connected to the injection chamber increases when the tension spring is released. The more; the adjustment component includes an adjustment ring and a transmission assembly, the adjustment ring is rotatably installed at the end of the conduit, and is screwed with the injection pipe, and the transmission assembly is configured so that when the adjustment ring rotates, the tension spring is charged, and the rotation angle of the adjustment ring The larger the tension spring is, the more force is stored; the pushing part includes an active assembly and a plurality of driven assemblies, and the driven assembly can move radially along the injection pipe and is set in the injection chamber, and the process of the driven assembly being far away from the center of the injection pipe Medium-compression injection chamber; the active assembly is configured so that when the motor drives the blocking plate to continue to rotate, the active assembly reciprocates to complete the work of releasing the extension spring, pushing the driven assembly away from the center of the injection pipe, and recharging the extension spring after stopping the push.

Further, the blocking part also includes a locking structure, and the telescopic plate includes a first plate and a second plate, both of which are telescopically arranged, and the telescopic direction is consistent with the radial direction of the injection pipe; the tension spring is arranged on the first plate and the second plate Between; the distance between the first plate and the injection pipe is smaller than the second plate, when the adjustment ring rotates, the transmission assembly drives the first plate to move outward along the radial direction of the injection pipe; the locking structure is configured to make the second The plate is not close to the first plate, and when the locking structure is triggered by the active component, the tension spring is released, and the second plate is driven close to the first plate.

Further, the driven assembly includes a pushing block and a compression spring; the pushing block is arranged in the injection chamber so that it can move radially along the injection tube; the compression spring is arranged between the pushing block and the injection tube, and one end is connected to the pushing block , the other end is connected with the injection pipe; the first plate and the second plate are slidably installed on the pushing block;

Further, the active assembly includes a plurality of pushing rods, which are uniformly distributed along the circumferential direction of the blocking plate, fixedly arranged on the blocking plate, and the setting direction of the pushing rods is consistent with the radial direction of the blocking plate; Set between two water inlets.

Further, the locking structure includes a locking lever, a connecting lever and a trigger lever; the end of the second plate located in front of the rotation direction of the blocking plate is provided with a first ratchet, and the first ratchet faces the pushing block; the locking lever is along the It is set in the first direction and can be slidably installed on the pushing block along the second direction; the end of the locking rod away from the center of the injection pipe is provided with a second ratchet, and the second ratchet faces the first plate; the locking rod faces the pushing One end of the block is provided with a return spring, and the first ratchet meshes with the second ratchet when the return spring is in a natural state; the trigger lever is also arranged along the first direction, and is arranged on the side of the pushing block located behind the rotation direction of the blocking plate, The locking lever is connected with the trigger lever through a connecting rod.

Further, the adjusting part includes a plurality of telescopic rods and a plurality of gears; the adjusting ring is provided with an annular tooth groove; the end of the first plate away from the center of the injection pipe is provided with a rack; a plurality of telescopic rods are evenly distributed along the circumference of the injection pipe, and the telescopic rods It is arranged along the axial direction of the injection pipe and rotates synchronously with the injection pipe. One end of the telescopic rod facing the adjustment ring is meshed with the ring tooth groove through a gear, and the end facing the injection pipe is meshed with the rack through a gear.

Further, the end of the pushing rod away from the center of the injection pipe and/or the end of the pushing block toward the center of the injection pipe is arc-shaped.

Further, the pushing block is provided with a second sliding groove, and the locking rod, the connecting rod and the triggering rod can slide in the second sliding groove along the second direction.

Furthermore, the rack extends out of the injection pipe through the first chute, and a plurality of projections are evenly arranged on the outer wall of the injection pipe, and a limit hole is provided on the projection, and the telescopic rod is rotatably installed in the limit hole.

The beneficial effect of the present invention is that the pressure applied to the cleaning agent can be adjusted by adjusting the rotation angle of the adjusting ring, and then the impact force of the cleaning agent can be adjusted. When the rotation adjustment ring angle is larger, the length of extension is longer, and the force of the tension spring is larger. After the tension spring is released, there are more water outlets connected to the injection chamber, and the impact force of the water flow is smaller. When the extension length of the injection pipe is short, the impact force of the cleaning agent after the injection cavity is compressed is large, and the tube cavity can be fully flushed. When the length of the injection tube is longer, the impact force of the cleaning agent after the injection cavity is compressed is small, which ensures the cleaning effect and avoids damage to the tube cavity.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the structural representation of the embodiment of a kind of flushing with rotary spray nozzle of the present invention;

Fig. 2 is the structural representation of conduit and injection device in the embodiment of a kind of flushing with rotary spray nozzle of the present invention;

Fig. 3 is a structural schematic diagram of an adjusting ring in an embodiment of a rotary spray nozzle for flushing according to the present invention;

Fig. 4 is a schematic view of the injection device in an embodiment of a rotary jet nozzle for flushing according to the present invention;

Fig. 5 is a schematic structural view of a part of the spraying device in an embodiment of a rotary spray nozzle for flushing according to the present invention;

Fig. 6 is a schematic view of the injection pipe and the plugging pipe in an embodiment of a rotary jet nozzle for flushing according to the present invention;

Fig. 7 is a schematic diagram of a plugging plate and a pushing rod in an embodiment of a rotary spray nozzle for flushing according to the present invention;

Fig. 8 is a schematic diagram of the structure in the injection chamber in an embodiment of a rotary jet nozzle for flushing according to the present invention;

Fig. 9 is a schematic structural view of a pushing block in an embodiment of a rotary spray nozzle for flushing according to the present invention;

Fig. 10 is a structural schematic diagram of a water baffle group in an embodiment of a rotary spray nozzle for flushing according to the present invention;

Fig. 11 is a structural schematic diagram of a locking structure in an embodiment of a rotary spray nozzle for flushing according to the present invention;

Among the figure: 100, conduit; 200, injection device; 210, injection pipe; 220, blocking plate; 221, water inlet; 230, water outlet plate; 231, water outlet; 232, block; 233, baffle plate; 234, Injection chamber; 240, blocking parts; 250, water retaining plate group; 251, first plate; 252, extension spring; 253, second plate; 260, locking structure; 261, locking lever; 262, first spine Tooth; 263, the second ratchet; 264, back-moving spring; 265, connecting rod; 266, trigger lever; 270, pushing parts; 271, pushing block; 272, the second chute; 273, clip spring; Push rod; 280, adjusting part; 281, adjusting ring; 282, annular tooth groove; 283, telescoping rod; 284, bump; 285, limit hole; 286, gear; 287, rack; Groove; 300, motor; 400, storage tank; 410, switch.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

An embodiment of a rotary spraying head for flushing of the present invention, as shown in FIGS. 1 to 11 , includes a storage tank 400, a conduit 100, and a spraying device 200; The adjusting part 280 and the pushing part 270; the injection pipe 210 is inserted into the conduit 100 and communicated with the conduit 100; the end of the injection pipe 210 away from the conduit 100 is fixed with a water outlet plate 230; the conduit 100 is provided with a rotatable blocking plate 220 The water outlet plate 230 and the blocking plate 220 define the first accommodation space, and the water outlet plate 230 is evenly provided with a plurality of stoppers 232 along the circumferential direction, and the plurality of stoppers 232 divide the first accommodation space into a plurality of injection chambers 234; the side of the spray chamber 234 towards the center of the spray pipe 210 is provided with a baffle 233 to block the spray chamber 234; the water outlet plate 230 is provided with multiple sets of water outlets 231, and each set of water outlets 231 is facing a spray chamber 234; The blocking plate 220 is provided with a plurality of water inlets 221, and in the initial state, the water inlets 221 face the block 232; each blocking member 240 is arranged in a spray chamber 234, and the blocking member 240 includes a water retaining plate group 250, and the water retaining The plate group 250 is a telescopic plate, which can move along the radial direction of the injection pipe 210; the telescopic plate is provided with a tension spring 252; When the spring 252 stores power, the quantity of the water outlet 231 communicated with the injection chamber 234 does not increase, and the quantity of the water outlet 231 communicated with the injection chamber 234 increases when the tension spring 252 releases, and the greater the force of the tension spring 252 is, the more the tension spring 252 releases and the water outlet 231 quantity communicates with the injection chamber 234. The more the number of water outlets 231 connected to the spray chamber 234 increases, the smaller the impact of the cleaning liquid being sprayed out; the adjustment component 280 includes an adjustment ring 281 and a transmission assembly, and the adjustment ring 281 is rotatably installed at the end of the conduit 100, and Helically connected with the injection pipe 210, the transmission assembly is configured so that when the adjustment ring 281 rotates, the extension spring 252 is charged, and the larger the rotation angle of the adjustment ring 281, the more the extension spring 252 stores force; the pushing part 270 includes active components and multiple A driven assembly, the driven assembly can move radially along the injection pipe 210 and is arranged in the injection chamber 234, and the driven assembly compresses the injection chamber 234 during the process away from the center of the injection pipe 210; the active assembly is configured to drive the seal when the motor 300 When the blocking plate 220 continues to rotate counterclockwise, the active component reciprocates to complete the work of releasing the tension spring 252, pushing the driven component away from the center of the injection pipe 210, and stopping the pushing to make the tension spring 252 accumulate force again; the storage tank 400 and the conduit 100 are far away from the injection tube. One end of the device 200 is connected to store cleaning agent. The storage tank 400 is provided with a switch 410 . When the switch 410 is pressed, the motor 300 drives the blocking plate 220 to rotate.

In this embodiment, as shown in Fig. 8, Fig. 10, and Fig. 11, the stop member 240 also includes a locking structure 260, and the telescopic plate includes a first plate 251 and a second plate 253, both of which are telescopically arranged, and the telescopic direction Consistent with the radial direction of the injection pipe 210; the second plate 253 is inserted into the first plate 251, and the two are connected by a tension spring 252; the first plate 251 is located at the end of the second plate 253 away from the injection pipe 210; the adjustment ring When 281 rotates, the transmission assembly drives the first plate 251 to move outward along the radial direction of the injection pipe 210, so that the tension spring 252 accumulates force; the locking structure 260 is configured so that the second plate 253 does not approach the first plate 251 , when the locking structure 260 is triggered by the active component, the tension spring 252 is released, and the second plate 253 is driven close to the first plate 251, so that part of the water outlet 231 communicates with the spray chamber 234, and the cleaning liquid can be released when the spray chamber 234 is compressed. Spray out from the water outlet 231.

In this embodiment, as shown in FIG. 4 , FIG. 8 , and FIG. 9 , the driven assembly includes a pushing block 271 and a compression spring 273 ; The compression spring 273 is arranged between the pushing block 271 and the injection pipe 210, one end is connected to the pushing block 271, and the other end is connected to the injection pipe 210; the first plate 251 and the second plate 253 are slidably mounted on the pushing block 271; and the pushing block 271 is positioned at the center of the injection chamber 234 near the center of the injection pipe 210 in the initial state, so that the pushing block 271 is in contact with the pushing block 271 and the pushing block 271 is away from the center of the injection pipe 210, while compressing the injection chamber 234 The stage clip 273 is charged, and after the active component is out of contact with the pushing block 271, the stage clip 273 is released to make the pushing block 271 return to the initial position, so as to prepare for the next spraying work.

In this embodiment, as shown in Fig. 4 and Fig. 7, the active assembly includes a plurality of pushing rods 274, which are evenly distributed along the circumferential direction of the blocking plate 220, fixedly arranged on the blocking plate 220, and pushing The setting direction of the rod 274 is consistent with the radial direction of the blocking plate 220; the pushing rod 274 is arranged between the two water inlets 221, and is close to the water inlet 221 positioned at the rear of the blocking plate 220 in the direction of rotation, so as to connect the water inlet 221 and the water inlet 221. After the spray chamber 234 is connected, the cleaning liquid has enough time to flow to the spray chamber 234, and then the pushing rod 274 triggers the locking structure 260 and makes the pushing block 271 away from the center of the spray pipe 210, thereby compressing the spray chamber 234, so that the cleaning liquid is Squirt out.

In this embodiment, as shown in FIG. 8, FIG. 10, and FIG. 11, the locking structure 260 includes a locking rod 261, a connecting rod 265 and a trigger rod 266; the pushing block 271 is provided with a second chute 272; One end of the second plate 253 located in front of the rotation direction of the blocking plate 220 is provided with a first ratchet 262, and the first ratchet 262 faces the pushing block 271; the locking lever 261 is arranged along the first direction and can slide along the second direction The first direction is perpendicular to the second direction; the end of the locking rod 261 away from the center of the injection pipe 210 is provided with a second ratchet 263, and the second ratchet 263 faces the first plate 251; the locking rod 261 is provided with a return spring 264 toward one end of the pushing block 271, and the first ratchet 262 is engaged with the second ratchet 263 when the returning spring 264 is in a natural state; the trigger lever 266 is also arranged along the first direction, and is arranged on the pushing block 271 Located on the rear side of the blocking plate 220 in the direction of rotation, the locking lever 261 and the trigger lever 266 are connected through the connecting rod 265; slide.

In this embodiment, as shown in Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 8, and Fig. 10, the adjustment member 280 includes a plurality of telescopic rods 283 and a plurality of gears 286; There is an annular tooth groove 282; the end of the first plate 251 away from the center of the injection pipe 210 is provided with a rack 287, and the rack 287 extends out of the injection pipe 210 through the first chute 288 arranged on the injection pipe 210, and the outer wall of the injection pipe 210 A plurality of protrusions 284 are evenly arranged, and a limit hole 285 is arranged on the protrusion 284, and the telescopic rod 283 is rotatably installed in the limit hole 285; The pipe 210 is arranged axially and rotates synchronously with the spray pipe 210. The end of the telescopic rod 283 towards the adjustment ring 281 is engaged with the annular tooth groove 282 through the gear 286, and the end towards the spray pipe 210 is engaged with the rack 287 through the gear 286 to When the adjustment ring 281 is rotated, a plurality of telescopic rods 283 are driven to rotate, and the rotation of the telescopic rods 283 drives the rack 287 to move outward along the radial direction of the injection pipe 210, thereby driving the first plate 251 away from the second plate 253 so that the tension spring 252 stores can.

In this embodiment, as shown in Fig. 4, Fig. 7, Fig. 8 and Fig. 9, the end of the pushing rod 274 away from the center of the injection pipe 210 and/or the end of the pushing block 271 towards the center of the ejection pipe 210 is arc-shaped , to reduce the wear of the pushing rod 274 and the pushing block 271 during the continuous rotation of the blocking plate 220 and the frequent contact between the two, thereby prolonging the service life of a rotary jet nozzle for flushing.

In conjunction with the foregoing embodiments, the present invention uses principle and working process as follows:

First pour the cleaning agent for flushing into the storage tank 400, then insert the injection device 200 into the lumen, and rotate the adjustment ring 281. Since the adjustment ring 281 and the injection pipe 210 are threaded, so when the adjustment ring 281 rotates, the injection pipe 210 is axially away from the catheter 100, that is, the injection tube 210 extends into the lumen. When the injection tube 210 is away from the catheter 100, the telescopic rod 283 is extended. Since one end of the telescopic rod 283 engages with the annular tooth groove 282, the adjustment ring The rotation of 281 will also drive a plurality of expansion rods 283 to rotate, and then drive gear 286 to rotate. The second plate 253, because the first ratchet 262 is engaged with the second ratchet 263, the position of the second plate 253 does not change, and the tension spring 252 stores force; in the initial state, the water outlet 231 is completely blocked by the water retaining plate group 250, One part is blocked by the first plate 251, and the other part is blocked by the second plate 253. The spray chamber 234 is in a sealed state. When the first plate 251 is far away from the second plate 253, all the water outlets 231 are still completely blocked, but the first The number of water outlets 231 blocked by the plate 251 is reduced, and the number of water outlets 231 blocked by the second plate 253 is increased. When the operator feels that the spray pipe 210 has reached a suitable position, the adjustment ring 281 is no longer rotated, the spray pipe 210 is no longer extended, the first plate 251 is no longer far away from the second plate 253, and the water outlet 231 blocked by the second plate 253 The number no longer increases.

Press the switch 410 on the storage tank 400 to make the motor 300 start to work, the motor 300 drives the blocking plate 220 to rotate, after the blocking plate 220 rotates at a certain angle, the water inlet 221 is connected to the injection chamber 234, and the cleaning agent flows into the injection chamber 234 . The continuous rotation of the blocking plate 220 makes the water inlet 221 face the stopper 232 , and no cleaning agent is injected into the injection chamber 234 . The rotation of the blocking plate 220 will drive the pushing rod 274 to rotate. When the water inlet 221 faces the block 232, the pushing rod 274 will first conflict with the trigger rod 266 during the rotation process, and drive the trigger rod 266 to move relative to the extrusion block. The connecting rod 265 drives the locking rod 261 to slide in the second chute 272 and away from the fender group 250, thereby disengaging the first ratchet 262 from the second ratchet 263, and under the action of the tension spring 252, the second The plate 253 is close to the first plate 251 , and the water outlet 231 blocked by the second plate 253 communicates with the spray chamber 234 . The blocking plate 220 continues to rotate, the pushing rod 274 is out of contact with the trigger rod 266, the locking rod 261 approaches the water baffle group 250 under the action of the return spring 264, and the first ratchet 262 engages with the second ratchet 263 again . After the push rod 274 is separated from the trigger rod 266, it contacts with the push block 271, and pushes the push block 271 to move radially outward along the injection pipe 210. At this time, the compression spring 273 accumulates force, the volume of the injection chamber 234 decreases, and the injection The cleaning agent in the chamber 234 is ejected from the water outlet 231 to complete a cleaning operation.

When the pushing block 271 moves outward radially along the injection pipe 210, it drives the connecting rod 265 to move synchronously. Since the end of the locking rod 261 is provided with a second ratchet 263, when the pushing block 271 moves outward, the second ratchet The tooth 263 moves relative to the first ratchet 262 , and the second ratchet 263 meshes with the first ratchet 262 closer to the first plate 251 . The blocking plate 220 continues to rotate under the drive of the motor 300, and drives the pushing rod 274 to rotate. radially inwardly, and drives the second plate 253 away from the first plate 251, when the compression spring 273 returns to the natural state, the water blocking plate group 250 blocks all the water outlets 231. The blocking plate 220 continues to rotate under the drive of the motor 300, and the above-mentioned working cycle reciprocates until the cleaning work is finished.

When the operator rotates the adjustment ring 281 at a small angle, the injection pipe 210 is inserted into the shallower position of the lumen, and the first plate 251 moves outward along the radial direction of the injection pipe 210 for a short distance. The number of connected water outlets 231 is small, and when the pushing block 271 moves radially outward along the injection pipe 210, the flushing agent ejected from the water outlet 231 has a greater impact force, which can fully flush the lumen to achieve flushing of the pipeline. Purpose. When the injection tube 210 is inserted into the lumen at a deeper position, the angle of the rotating adjustment ring 281 is larger, and the first plate 251 moves outward along the radial direction of the injection tube 210 for a longer distance. After the locking structure 260 is triggered, it communicates with the injection chamber 234 The number of water outlets 231 is relatively large, and when the pushing block 271 moves radially outward along the injection pipe 210, the impact force of the flushing agent ejected from the water outlets 231 is small, which can fully flush the lumen and avoid the impact caused by the flushing agent. The force is large and the internal structure of the lumen is damaged.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. A rotary spray nozzle for flushing, comprising storage tank, conduit and injection device, is characterized in that the injection device comprises: The injection pipe is inserted into the conduit and communicated with the conduit; the end of the injection pipe away from the conduit is fixed with a water outlet plate; the conduit is provided with a rotatable blocking plate; the water outlet plate and the blocking plate define a first accommodating space, and the water outlet A plurality of stoppers are uniformly arranged along the circumference of the plate, and the plurality of stoppers divide the first accommodating space into a plurality of injection chambers; the side of the injection chamber facing the center of the injection pipe is provided with a baffle to block the injection chamber; There are multiple groups of water outlets on the board, and each group of water outlets is facing a spray chamber; there are multiple water inlets on the blocking board, and the water inlets face the block in the initial state; A plurality of blocking parts, each blocking part is arranged in a spray chamber, the blocking part includes a water baffle group, the water baffle group is a telescopic plate, and the telescopic plate can move along the radial direction of the spray pipe; inside the telescopic plate is a Extension spring; the expansion plate in the initial state of the configuration of the water retaining part prevents the water outlet from communicating with the injection chamber; the number of water outlets connected to the injection chamber does not increase when the tension spring is charged, and the number of water outlets connected to the injection chamber increases when the tension spring is released , and the greater the force of the tension spring is, the more the number of water outlets connected to the injection chamber will increase after the tension spring is released; The adjustment component includes an adjustment ring and a transmission assembly. The adjustment ring is rotatably installed at the end of the conduit and is screwed with the injection pipe. The transmission assembly is configured so that when the adjustment ring rotates, the tension spring is charged, and the greater the rotation angle of the adjustment ring , the more the tension spring accumulates; The pushing part includes an active assembly and a plurality of driven assemblies, the driven assembly is arranged in the injection cavity radially movable along the injection tube, and the driven assembly compresses the injection cavity during the process away from the center of the injection tube; the active assembly is configured as When the motor drives the blocking plate to continue to rotate, the active component reciprocates to complete the work of releasing the tension spring, pushing the driven component away from the center of the injection pipe, and stopping the pushing to make the tension spring store force again. 2. A rotary spray nozzle for flushing according to claim 1, characterized in that: the stop member also includes a locking structure, and the telescopic plate includes a first plate and a second plate, both of which are telescopically arranged, and the telescopic direction is the same as that of the second plate. The radial directions of the injection pipes are consistent; the tension spring is set between the first plate and the second plate; the distance between the first plate and the injection pipe is smaller than the second plate, and when the adjustment ring rotates, the first plate is driven by the transmission assembly along the spraying direction. The tube moves outward in the radial direction; the locking structure is configured to keep the second plate away from the first plate when activated, and when the locking structure is triggered by the active component, the tension spring is released and the second plate is driven close to the first plate. 3. A rotary spray nozzle for flushing according to claim 2, characterized in that: the driven assembly includes a pushing block and a pressure spring; The spring is arranged between the push block and the injection pipe, one end is connected to the push block, and the other end is connected to the injection pipe; the first plate and the second plate are slidably installed on the push block; and the push block is in the initial state The location of the injection chamber near the center of the injection tube. 4. A flushing rotary spray head according to claim 3, characterized in that: the active assembly includes a plurality of pushing rods, the plurality of pushing rods are evenly distributed along the circumference of the blocking plate, fixedly arranged on the blocking plate, and The arrangement direction of the pushing rod is consistent with the radial direction of the blocking plate; the pushing rod is arranged between the two water inlets. 5. A rotary spray nozzle for flushing according to claim 4, characterized in that: the locking structure includes a locking lever, a connecting lever and a trigger lever; The first ratchet, the first ratchet faces the pushing block; the locking rod is arranged along the first direction, and is slidably installed on the pushing block along the second direction; the end of the locking rod away from the center of the spray pipe is provided with a second Ratchet, the second ratchet faces the first plate; the end of the locking lever facing the pushing block is provided with a return spring, and the first ratchet meshes with the second ratchet when the return spring is in a natural state; the trigger lever is also arranged along the first direction , and it is arranged on the side of the pushing block located behind the rotation direction of the blocking plate, and the locking rod and the trigger rod are connected through a connecting rod. 6. A rotary spray nozzle for flushing according to claim 2, characterized in that: the adjustment component includes a plurality of telescopic rods and a plurality of gears; the adjustment ring is provided with annular tooth grooves; the first plate is far away from the center of the injection pipe There is a rack at one end; a plurality of telescopic rods are evenly distributed along the circumference of the spray pipe, and the telescopic rods are arranged along the axial direction of the spray pipe and rotate synchronously with the spray pipe. One end of the gear meshes with the rack. 7 . The rotary spray nozzle for flushing according to claim 4 , wherein the end of the push rod far away from the center of the spray pipe and/or the end of the push block facing the center of the spray pipe is arc-shaped. 7 . 8. A rotary spray nozzle for flushing according to claim 5, characterized in that: the pushing block is provided with a second sliding groove, and the locking rod, the connecting rod and the triggering rod can slide in the second direction along the second direction. Sliding in the groove. 9. A rotary spray nozzle for flushing according to claim 6, characterized in that: the rack protrudes from the spray pipe through the first chute, a plurality of bumps are evenly arranged on the outer wall of the spray pipe, and a limiter is set on the bump. The position hole, the telescopic rod is rotatably installed in the limit hole.

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