An automatically extendable cleaning machine spray head

Abstract

The utility model discloses a kind of cleaning machine spray heads that can automatically lengthen, characterized by including connecting pipe, moving sleeve, rotating sleeve and nozzle, one end of connecting pipe is detachably fixed with the water outlet end of cleaning machine, water inlet channel that is axially through is provided in connecting pipe, water inlet channel is communicated with the water outlet end of cleaning machine, moving sleeve is sleeved on connecting pipe and can be axially sealed sliding along connecting pipe, rotating sleeve is sleeved outside moving sleeve and is rotationally cooperated with moving sleeve, nozzle is fixed at the front end of rotating sleeve, and nozzle is rotationally connected with the front end of moving sleeve, nozzle is provided with multiple water outlets of different shapes and aperture, the front end of moving sleeve is provided with water passage that is communicated with water inlet channel, rotating rotating sleeve, so that one of water outlets is sealed butt joint with water passage;Advantages are that when using, the length of entire spray head will automatically lengthen, so that nozzle is closer to the article at remote position to ensure cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of handheld cleaning machine technology, and in particular to a cleaning machine nozzle that can automatically extend. Background Technology

[0002] Handheld washer machines, as a portable new type of cleaning equipment, are gradually replacing traditional cleaning methods and showing significant advantages in manufacturing, auto repair, and other fields. Handheld washer machines primarily use a booster pump to pressurize water before spraying it out. Some models have an additional nozzle connected to the water outlet, with different shaped water outlets. By selecting different outlets, the nozzle can spray water jets of varying pressures and shapes. However, with existing nozzles, the distance between the water outlet and the water outlet of the handheld washer is fixed, which makes it difficult to achieve good cleaning results for items located at greater distances. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a cleaning machine nozzle that can automatically extend, which can cover a longer cleaning range and ensure the cleaning effect.

[0004] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an automatically extendable cleaning machine nozzle, including a connecting pipe, a movable sleeve, a rotating sleeve, and a nozzle. One end of the connecting pipe is detachably fixed to the water outlet end of the cleaning machine. An axially penetrating water inlet channel is provided inside the connecting pipe, and the water inlet channel is connected to the water outlet end of the cleaning machine. The movable sleeve is fitted on the connecting pipe and can slide axially and sealed along the connecting pipe. The rotating sleeve is fitted outside the movable sleeve and rotates with the movable sleeve. The nozzle is fixed to the front end of the rotating sleeve and is rotatably connected to the front end of the movable sleeve. The nozzle is provided with multiple water outlet holes of different shapes and diameters. A water inlet is provided at the front end of the movable sleeve, and the water inlet is connected to the water inlet. One of the water outlet holes is sealed and connected to the water inlet.

[0005] Furthermore, an axially extending guide rib is integrally provided on the outer circumference of the connecting pipe, a connecting seat is sleeved on the connecting pipe, a first guide groove is provided on the connecting seat, the first guide groove is slidably engaged with the guide rib, the connecting seat is inserted and fixedly connected to the movable sleeve, a first sealing ring is provided at the front end of the connecting pipe, and the movable sleeve and the connecting pipe are sealed and slidably engaged by the first sealing ring.

[0006] Furthermore, an axially extending guide rib is integrally provided on the outer circumferential surface of the connecting pipe, a second guide groove is provided on the movable sleeve, the second guide groove is slidably engaged with the guide rib, a first sealing ring is provided at the front end of the connecting pipe, and the movable sleeve and the connecting pipe are slidably engaged by the first sealing ring.

[0007] Furthermore, a second sealing ring is provided on the outside of the water inlet, and the water outlet is sealed and connected to the water inlet through the second sealing ring; or a sealing sleeve with a through hole is provided inside the water inlet, and a first spring is abutted between the end of the sealing sleeve away from the water outlet and the water inlet, and the water outlet is sealed and connected to the water inlet through the sealing sleeve.

[0008] Furthermore, a rotation positioning mechanism is provided between the movable sleeve and the rotating sleeve.

[0009] Furthermore, the rotation positioning mechanism includes a positioning pin, a limiting sleeve, and a second spring. The rear end of the movable sleeve is provided with a radial mounting hole. The limiting sleeve is located inside the mounting hole and fits tightly with the mounting hole. The positioning pin is disposed in the limiting sleeve and its front end extends out of the limiting sleeve. A limiting protrusion is integrally provided on the positioning pin. The limiting protrusion abuts against the inner end face of the limiting sleeve to prevent the positioning pin from slipping off the limiting sleeve. The second spring abuts between the positioning pin and the mounting hole. The inner surface of the rotating sleeve is provided with multiple inner positioning grooves. The number and position of the inner positioning grooves correspond one-to-one with the water outlet holes. The positioning pin is engaged in one of the inner positioning grooves.

[0010] Furthermore, a reference mark is provided at the rear end of the movable sleeve.

[0011] Furthermore, a positioning ring is fixedly provided on the connecting pipe, and a positioning protrusion is integrally provided on the positioning ring. An end cap is sleeved on the connecting pipe, and the end cap is fixed to the rear end of the rotating sleeve. The end cap is provided with first positioning grooves in number and position corresponding to the water outlet. When the first positioning grooves cooperate with the positioning protrusions, the rotating sleeve is locked.

[0012] Furthermore, a positioning protrusion is integrally provided on the outer circumferential surface of the nozzle tip, the front end of the rotating sleeve abuts against the positioning protrusion, a positioning block is integrally provided on the outer circumferential surface of the nozzle, a second positioning groove is provided inside the rotating sleeve, and the positioning block is embedded in the second positioning groove, so that the nozzle and the front end of the rotating sleeve are relatively fixed.

[0013] Furthermore, the front end of the movable sleeve is provided with at least one locking block, and a positioning ring groove is provided on the outer circumferential surface of the nozzle, with the locking block extending radially into the positioning ring groove.

[0014] Furthermore, one end of the connecting pipe is fixedly connected to the water outlet of the cleaning machine by a rotating buckle.

[0015] Compared with the prior art, the advantage of this utility model is that the nozzle is connected to the water outlet of the cleaning machine. When in use, the water pressure will automatically push the moving sleeve forward, which will extend the length of the entire nozzle. Furthermore, the different water outlet holes on the nozzle can make the sprayed water column have different shapes and pressures, so that the nozzle can get closer to items at a distance to ensure the cleaning effect. In addition, the nozzle can also cover a wider cleaning range. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the extended state of this utility model; Figure 2 for Figure 1 A sectional view; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the structure of this utility model after removing the rotating sleeve; Figure 5 This is an exploded view of the present invention; Figure 6 This is a schematic diagram of the internal structure of the rotating sleeve of this utility model; Figure 7 This is a schematic diagram of another sealing connection method between the water outlet and the water inlet of this utility model. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] As shown in the figure, an automatically extendable cleaning machine nozzle includes a connecting pipe 1, a movable sleeve 2, a rotating sleeve 3, and a nozzle 4. One end of the connecting pipe 1 is fixedly connected to the water outlet of the cleaning machine (not shown in the figure) by a rotating buckle 11, or it can be detachably fixed by other existing methods such as threaded connection. An axially penetrating water inlet channel 12 is provided inside the connecting pipe 1, and the water inlet channel 12 is connected to the water outlet of the cleaning machine. The movable sleeve 2 is sleeved on the connecting pipe 1. An axially extending guide rib 13 is integrally provided on the outer circumference of the connecting pipe 1. A connecting seat 5 is sleeved on the connecting pipe 1, and a first guide groove 51 is provided on the connecting seat 5. The first guide groove 51 slides with the guide rib 13. The connecting seat 5 is inserted and fixed to the movable sleeve 2. A first sealing ring 14 is provided at the front end of the connecting pipe 1. The movable sleeve 2 and the connecting pipe 1 are sealed and slide in a sliding manner through the first sealing ring 14. The rotating sleeve 3 is sleeved on the outside of the movable sleeve 2 and is connected to the nozzle 4. The movable sleeve 2 is rotated and engaged, and the nozzle 4 is rotatably connected to the front end of the movable sleeve 2. A positioning protrusion ring 41 is integrally provided on the outer circumference of the front end of the nozzle 4. The front end of the rotating sleeve 3 abuts against the positioning protrusion ring 41. A positioning block 42 is integrally provided on the outer circumference of the nozzle 4. A second positioning groove 31 is provided inside the rotating sleeve 3. The positioning block 42 is embedded in the second positioning groove 31, so that the nozzle 4 and the front end of the rotating sleeve 3 are relatively fixed. The rotating sleeve 3 can drive the nozzle 4 to rotate synchronously. The nozzle 4 is provided with multiple water outlet holes 43 of different shapes and diameters, so that the nozzle can spray water columns of different shapes and pressures (i.e., the water columns have multiple different modes). The front end of the movable sleeve 2 is provided with a water inlet 21. A second sealing ring 22 is provided on the outside of the water inlet 21. The water inlet 21 is connected to the water inlet channel 12. Rotating the rotating sleeve 3 makes one of the water outlet holes 43 and the water inlet 21 seal and connect through the second sealing ring 22. To facilitate positioning after the water outlet 43 is connected to the water inlet 21, a rotation positioning mechanism is provided between the movable sleeve 2 and the rotating sleeve 3. The rotation positioning mechanism includes a positioning pin 6, a limiting sleeve 61, and a second spring 62. The rear end of the movable sleeve 2 is provided with a radial mounting hole (not shown in the figure). The limiting sleeve 61 is located in the mounting hole and fits tightly with the mounting hole. The positioning pin 6 is set in the limiting sleeve 61 and its front end extends out of the limiting sleeve 61. A limiting protrusion 63 is integrally provided on the positioning pin 6. The limiting protrusion 63 abuts against the inner end face of the limiting sleeve 61 to prevent the positioning pin 6 from slipping off the limiting sleeve 61. The second spring 62 abuts between the positioning pin 6 and the mounting hole. The inner end face of the rotating sleeve 3... The surface is provided with multiple inner positioning grooves 32, the number and position of which correspond one-to-one with the water outlet 43. When one of the water outlets 43 is aligned with the water inlet 21, the positioning pin 6 is engaged in one of the corresponding inner positioning grooves 32 to prevent the rotating sleeve 3 from rotating automatically. At the same time, a slight touching sound will be emitted to help the user determine whether the water outlet 43 is aligned with the water inlet 21. When it is necessary to change the water outlet 43, the rotating sleeve 3 is turned by hand. Under the action of external force, the positioning pin 6 is disengaged from the current inner positioning groove 32. When the adjacent water outlet 43 is aligned with the water inlet 21, the positioning pin 6 is engaged in the adjacent inner positioning groove 32.

[0019] In the above embodiments, in order to facilitate the rotational connection between the connecting pipe 1 and the water outlet of the cleaning machine by means of rotating buckle 11 or threaded connection, a positioning ring 15 can also be fixedly provided on the connecting pipe 1. The positioning ring 15 is integrally provided with a positioning protrusion 16. The connecting pipe 1 is fitted with an end cap 7. The end cap 7 is fixed to the rear end of the rotating sleeve 3 by means of clamping feet, etc. The end cap 7 is provided with a plurality of first positioning grooves 71 corresponding to the number and position of the water outlet 43. When the first positioning groove 71 cooperates with the positioning protrusion 16, the rotating sleeve 3 is locked, so that the connecting pipe 1 and the water outlet of the cleaning machine can be rotated and fixed by hand by holding the rotating sleeve 3.

[0020] The sealing connection between the water outlet 43 and the water inlet 21 is achieved through the second sealing ring 22 (such as...). Figure 2 In addition to the above, a sealing sleeve 8 with a through hole can be provided inside the water inlet 21. A first spring 9 abuts against the end of the sealing sleeve 8 away from the water outlet 43 and the water inlet 21. The sealing sleeve 8 abuts against the nozzle 4, so that the water outlet 43 is sealed and connected to the water inlet 21 through the sealing sleeve 8. Figure 7 As shown, since the nozzle 4 needs to be rotated to replace the water outlet 43, this sealing method makes the sealing connection between the water outlet 43 and the water inlet 21 more reliable, less prone to leakage, and the service life of the sealing sleeve 8 is longer.

[0021] In addition, in order to facilitate the positioning of the installation direction of the movable sleeve 2 on the connecting pipe 1, a reference mark 23 can be set at the rear end of the movable sleeve 2. For example, when installing the movable sleeve 2, the reference mark 23 is positioned directly above, which facilitates the installation of subsequent components.

[0022] In the above embodiments, the connecting seat 5 can be omitted, and a second guide groove can be directly provided on the movable sleeve 2, so that the second guide groove and the guide rib 13 can slide together.

[0023] The front end of the movable sleeve 2 is provided with multiple locking blocks 24, and the outer circumferential surface of the nozzle 4 is provided with a positioning ring groove 44. The locking blocks 24 extend radially into the positioning ring groove 44. During installation and testing, that is, before the rotating sleeve 3 is assembled onto the movable sleeve 2, the nozzle 4 can be limited in the front end of the movable sleeve 2 by the cooperation of the locking blocks 24 and the positioning ring groove 44.

[0024] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A self-extending cleaning machine nozzle, characterized in that... The device includes a connecting pipe, a movable sleeve, a rotating sleeve, and a nozzle. One end of the connecting pipe is detachably fixed to the water outlet of the cleaning machine. An axially penetrating water inlet channel is provided inside the connecting pipe, and the water inlet channel is connected to the water outlet of the cleaning machine. The movable sleeve is fitted onto the connecting pipe and can slide axially in a sealed manner. The rotating sleeve is fitted onto the movable sleeve and rotates with it. The nozzle is fixed to the front end of the rotating sleeve and is rotatably connected to the front end of the movable sleeve. The nozzle has multiple water outlet holes of different shapes and diameters. The front end of the movable sleeve has a water inlet, which is connected to the water inlet channel. One of the water outlet holes is sealed and connected to the water inlet.

2. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: The connecting pipe has an integrally formed axially extending guide rib on its outer circumference. A connecting seat is fitted on the connecting pipe, and a first guide groove is provided on the connecting seat. The first guide groove slides in cooperation with the guide rib. The connecting seat is inserted and fixed to the movable sleeve. A first sealing ring is provided at the front end of the connecting pipe. The movable sleeve and the connecting pipe slide in a sealed manner through the first sealing ring.

3. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: The connecting pipe has an integrally formed axially extending guide rib on its outer circumference. The movable sleeve has a second guide groove that slides with the guide rib. The front end of the connecting pipe has a first sealing ring, and the movable sleeve and the connecting pipe slide with each other through the first sealing ring.

4. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: The water inlet is provided with a second sealing ring on its exterior, and the water outlet is sealed to the water inlet through the second sealing ring; or the water inlet is provided with a sealing sleeve with a through hole inside, and a first spring is abutting between the end of the sealing sleeve away from the water outlet and the water inlet, and the water outlet is sealed to the water inlet through the sealing sleeve.

5. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: A rotation positioning mechanism is provided between the movable sleeve and the rotating sleeve.

6. The automatically extendable cleaning machine nozzle as described in claim 5, characterized in that: The rotating positioning mechanism includes a positioning pin, a limiting sleeve, and a second spring. The rear end of the movable sleeve is provided with a radial mounting hole. The limiting sleeve is located in the mounting hole and fits tightly with the mounting hole. The positioning pin is disposed in the limiting sleeve and its front end extends out of the limiting sleeve. A limiting protrusion is integrally provided on the positioning pin. The limiting protrusion abuts against the inner end face of the limiting sleeve to prevent the positioning pin from slipping off the limiting sleeve. The second spring abuts between the positioning pin and the mounting hole. The inner surface of the rotating sleeve is provided with multiple inner positioning grooves. The number and position of the inner positioning grooves correspond one-to-one with the water outlet. The positioning pin is engaged in one of the inner positioning grooves.

7. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: The rear end of the movable sleeve is provided with a reference mark.

8. The automatically extendable cleaning machine nozzle as described in claim 7, characterized in that: A positioning ring is fixedly installed on the connecting pipe, and a positioning protrusion is integrally installed on the positioning ring. An end cap is sleeved on the connecting pipe, and the end cap is fixed to the rear end of the rotating sleeve. The end cap is provided with first positioning grooves in number and position corresponding to the water outlet. When the first positioning grooves cooperate with the positioning protrusions, the rotating sleeve is locked.

9. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: The nozzle has an integrally formed positioning protrusion on its outer circumferential surface at the front end. The front end of the rotating sleeve abuts against the positioning protrusion. The nozzle has an integrally formed positioning block on its outer circumferential surface. The rotating sleeve has a second positioning groove inside. The positioning block is embedded in the second positioning groove, so that the nozzle and the front end of the rotating sleeve are relatively fixed.

10. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: The front end of the movable sleeve is provided with at least one locking block, and the outer circumferential surface of the nozzle is provided with a positioning ring groove, and the locking block extends radially into the positioning ring groove.

11. The automatically extendable cleaning machine nozzle as described in claim 1, characterized in that: One end of the connecting pipe is fixedly connected to the water outlet of the cleaning machine by a rotating buckle.

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