Rotary sleeve mounting structure of all-in-one high-pressure nozzle

Abstract

The utility model provides a rotary sleeve mounting structure of an all-in-one high-pressure nozzle, and belongs to the technical field of cleaning machines. The connecting structure solves the problems that an existing connecting structure between a rotating sleeve and a nozzle seat is simple and poor in connecting stability. The rotary sleeve mounting structure of the all-in-one high-pressure spray head comprises a base, a nozzle seat and a rotary sleeve, the front end of the base is inserted into the rear end of the nozzle seat, the nozzle seat can circumferentially rotate relative to the base, two or more nozzles are mounted in the nozzle seat, and the rotary sleeve is arranged outside the base and the nozzle seat in a sleeving mode. The base and the nozzle seat are connected through a bayonet lock arranged in the radial direction of the base, the nozzle seat is provided with a step face, the front end of the rotating sleeve is provided with a front limiting flange attached to the step face, a positioning groove is formed in the peripheral face of the rear end of the base, and the rear end of the rotating sleeve is provided with a rear limiting flange inserted into the positioning groove. According to the structure, the stability of connection between the base and the nozzle seat is improved, and then the high-pressure spray head can bear large water pressure.

Description

Technical Field

[0001] This utility model belongs to the field of cleaning machine technology, and specifically refers to a rotating sleeve installation structure for a multi-in-one high-pressure nozzle. Background Technology

[0002] The types of nozzles used in high-pressure cleaners include, for example, the six-in-one switchable nozzle for high-pressure cleaners disclosed on the China Patent Network [Authorization Announcement No.: CN212441704U]. This discloses a rotatably connected nozzle base and rear cover. The nozzle base is equipped with a low-pressure fan-shaped nozzle, a low-pressure straight nozzle, a high-pressure straight nozzle, a high-pressure 15° nozzle, a high-pressure 25° nozzle, and a high-pressure 40° nozzle. When using it, there is no need to change the nozzle under different needs. The six states can be freely switched to achieve different functions, making cleaning more convenient.

[0003] Existing multi-function nozzles typically consist of a base, a nozzle holder, and a rotating sleeve. The base connects to the nozzle barrel, the nozzle holder has various nozzles mounted on it, and the rotating sleeve is connected to the nozzle holder, fixing them together. Rotating the rotating sleeve drives the nozzle holder to rotate, allowing for easy switching between different spray patterns. However, the existing connection structure between the rotating sleeve and the nozzle holder is relatively simple, has poor stability, and can only withstand limited water pressure. Utility Model Content

[0004] The purpose of this utility model is to address the aforementioned problems in existing technologies by proposing a rotating sleeve mounting structure for a multi-functional high-pressure nozzle. The technical problem to be solved by this utility model is: how to solve the problem of the relatively simple connection structure and poor connection stability between the existing rotating sleeve and nozzle seat.

[0005] The objective of this utility model can be achieved through the following technical solutions:

[0006] A rotating sleeve mounting structure for a multi-functional high-pressure nozzle includes a base, a nozzle seat, and a rotating sleeve. The front end of the base is inserted into the rear end of the nozzle seat, and the nozzle seat is circumferentially rotatable relative to the base. Two or more nozzles are installed in the nozzle seat. The rotating sleeve is sleeved over the base and the nozzle seat. The base and the nozzle seat are connected by a snap-fit ​​pin arranged radially thereon. The nozzle seat has a stepped surface. The front end of the rotating sleeve has a front limiting flange that abuts against the stepped surface. A positioning groove is formed on the outer circumferential surface of the rear end of the base. The rear end of the rotating sleeve has a rear limiting flange that inserts into the positioning groove.

[0007] In this structure, the rotating sleeve is connected to the nozzle seat via a locking pin, allowing the rotating sleeve and nozzle seat to be positioned circumferentially. Rotating the rotating sleeve causes the nozzle seat to rotate synchronously, thus enabling free switching between various spray modes. The front limiting flange at the front end of the rotating sleeve hooks onto the stepped surface, and the rear limiting flange at the rear end of the rotating sleeve is embedded in the positioning groove, making the connection between the base and the nozzle seat relatively tight. During water spraying, the front limiting flange restricts the outward movement of the nozzle seat, making it difficult for the nozzle seat to separate from the base, thereby improving the stability of the connection between the base and the nozzle seat and enabling the high-pressure nozzle to withstand greater water pressure.

[0008] In the aforementioned rotating sleeve mounting structure for a multi-functional high-pressure nozzle, the retaining pin is a U-shaped pin. An arc-shaped groove is formed along the circumference of the outer circumference of the rotating sleeve. The U-shaped pin passes through the nozzle seat, with its U-shaped end located within the arc-shaped groove. The base has an annular retaining groove, within which the U-shaped pin passes. In this structure, the rotating sleeve is connected to the nozzle seat via the U-shaped pin, allowing the nozzle seat to rotate synchronously when the rotating sleeve is rotated. The retaining groove allows the U-shaped pin to rotate around it.

[0009] In the aforementioned rotating sleeve mounting structure of a multi-functional high-pressure nozzle, the inner circumferential surface of the rotating sleeve is provided with several circumferentially spaced limiting grooves, and the outer circumferential surface of the nozzle seat has several protrusions, each of which is embedded in a corresponding limiting groove. This structure, where the protrusions are embedded in the limiting grooves, facilitates the rotation of the nozzle seat by the rotating sleeve. This rotating structure is relatively stable and reliable, and can withstand a large rotational force, improving the ease of rotation of the nozzle seat. Simultaneously, the structure where the protrusions are embedded in the limiting grooves also serves to limit the movement of the rotating sleeve, ensuring that it does not shift. This, in turn, prevents the nozzle seat from easily separating from the base, improving the stability of the connection between the base and the nozzle seat, and enabling the high-pressure nozzle to withstand greater water pressure.

[0010] In the aforementioned rotating sleeve mounting structure of a multi-functional high-pressure nozzle, there are four protrusions, each with a through hole, and the U-shaped pin passes through all four through holes. The nozzle seat is made of plastic, and the protrusions provide high structural strength. The placement of the U-shaped pin within the four through holes ensures high structural strength at the U-shaped pin mounting position, making it less prone to breakage.

[0011] In the above-mentioned rotating sleeve mounting structure of a multi-in-one high-pressure nozzle, a nozzle sleeve is fitted on the outside of the front end of the nozzle seat, and one end of the nozzle sleeve wraps around the boss at the front end of the rotating sleeve.

[0012] In the above-mentioned rotating sleeve mounting structure of a multi-in-one high-pressure nozzle, the rotating sleeve includes a left sleeve body and a right sleeve body, which are fastened together and fixedly connected by screws.

[0013] Compared with the prior art, the rotating sleeve mounting structure of the multi-in-one high-pressure nozzle of this utility model has the following advantages: The rotating sleeve in this structure is connected to the nozzle seat by a locking pin, so that the rotating sleeve and the nozzle seat are positioned circumferentially. After rotating the rotating sleeve, the nozzle seat is driven to rotate synchronously, thereby realizing the free switching of multiple spraying states. The front limiting flange at the front end of the rotating sleeve is hooked on the step surface, and the rear limiting flange at the rear end of the rotating sleeve is embedded in the positioning groove, so that the connection between the base and the nozzle seat is relatively tight. During the water spraying process, the front limiting flange restricts the nozzle seat from moving outward, and the nozzle seat is not easy to separate from the base, which improves the stability of the connection between the base and the nozzle seat, thereby enabling the high-pressure nozzle to withstand greater water pressure. Attached Figure Description

[0014] Figure 1 This is one of the cross-sectional structural schematic diagrams of this utility model.

[0015] Figure 2 This is the second cross-sectional structural schematic diagram of this utility model.

[0016] Figure 3 This is an exploded structural diagram of the present invention.

[0017] In the figure, 1 is the base; 10 is the positioning groove; 11 is the slot; 2 is the nozzle seat; 20 is the stepped surface; 21 is the protrusion; 210 is the through hole; 3 is the rotating sleeve; 30 is the front limiting flange; 31 is the arc groove; 32 is the limiting groove; 33 is the rear limiting flange; 4 is the locking pin; 5 is the nozzle sleeve; 6 is the nozzle sleeve. Detailed Implementation

[0018] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0019] like Figures 1-3As shown, the rotating sleeve mounting structure of this multi-functional high-pressure nozzle includes a base 1, a nozzle seat 2, a rotating sleeve 3, and a nozzle sleeve 5. The front end of the base 1 is inserted into the rear end of the nozzle seat 2, and the nozzle seat 2 can rotate circumferentially relative to the base 1. Two or more nozzles are installed in the nozzle seat 2. The rotating sleeve 3 is sleeved on the base 1 and the nozzle seat 2. The base 1 and the nozzle seat 2 are connected by a locking pin 4 arranged radially. The nozzle seat 2 has a stepped surface 20. The front end of the rotating sleeve 3 has a front limiting flange 30 that abuts against the stepped surface 20. A positioning groove 10 is opened on the outer peripheral surface of the rear end of the base 1. The rear end of the rotating sleeve 3 has a rear limiting flange 33 that is inserted into the positioning groove 10. In this embodiment, the locking pin 4 is a U-shaped pin. An arc-shaped groove 31 is opened circumferentially on the outer peripheral surface of the rotating sleeve 3. The U-shaped pin passes through the nozzle seat 2, and the U-shaped end of the U-shaped pin is located in the arc-shaped groove 31. The base 1 has an annular locking groove 11, and the U-shaped pin passes through the locking groove 11. In this structure, the rotating sleeve 3 is connected to the nozzle seat 2 via a locking pin 4, allowing the rotating sleeve 3 and the nozzle seat 2 to be positioned circumferentially. Rotating the rotating sleeve 3 causes the nozzle seat 2 to rotate synchronously, thereby enabling free switching between various spraying states. The front limiting flange 30 at the front end of the rotating sleeve 3 hooks onto the stepped surface 20, and the rear limiting flange 33 at the rear end of the rotating sleeve 3 is embedded in the positioning groove 10, making the connection between the base 1 and the nozzle seat 2 relatively tight. During water spraying, the front limiting flange 30 restricts the nozzle seat 2 from moving outward, while the U-shaped pin and the rear limiting flange 33 work together to position the rotating sleeve 3 in its original position, preventing the rotating sleeve 3 from shifting back and forth. Consequently, the nozzle seat 2 is less likely to separate from the base 1, improving the stability of the connection between the base 1 and the nozzle seat 2, and enabling the high-pressure nozzle to withstand greater water pressure.

[0020] Furthermore, the inner circumferential surface of the rotating sleeve 3 is provided with several circumferentially spaced limiting grooves 32, and the outer circumferential surface of the nozzle seat 2 has several protrusions 21, each protrusion 21 being embedded in a corresponding limiting groove 32. There are four protrusions 21, and each protrusion 21 has a through hole 210, through which a U-shaped pin passes. The structure of the protrusions 21 embedded in the limiting grooves 32 facilitates the rotation of the nozzle seat 2 by the rotating sleeve 3. This rotation structure is relatively stable and reliable, and can withstand a large rotational force, improving the convenience of the rotation of the nozzle seat 2. At the same time, the structure of the protrusions 21 embedded in the limiting grooves 32 also plays a role in front and rear limiting, ensuring that the rotating sleeve 3 does not shift, thereby ensuring that the nozzle seat 2 is not easily separated from the base 1, improving the stability of the connection between the base 1 and the nozzle seat 2, and thus enabling the high-pressure nozzle to withstand a large water pressure.

[0021] The nozzle seat 2 is fitted with a nozzle sleeve 5 on the front end. One end of the nozzle sleeve 5 wraps around the boss at the front end of the rotating sleeve 3. The rotating sleeve 3 includes a left sleeve body and a right sleeve body. The left sleeve body and the right sleeve body are fastened together and fixedly connected by screws.

[0022] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A rotating sleeve mounting structure for a multi-functional high-pressure nozzle, comprising a base (1), a nozzle seat (2), and a rotating sleeve (3), wherein the front end of the base (1) is inserted into the rear end of the nozzle seat (2) and the nozzle seat (2) is circumferentially rotatable relative to the base (1), two or more nozzles are installed in the nozzle seat (2), and the rotating sleeve (3) is sleeved on the base (1) and the nozzle seat (2), characterized in that, The base (1) and the nozzle seat (2) are connected by a locking pin (4) arranged radially thereon. The nozzle seat (2) has a stepped surface (20). The front end of the rotating sleeve (3) has a front limiting flange (30) that abuts against the stepped surface (20). A positioning groove (10) is provided on the outer peripheral surface of the rear end of the base (1). The rear end of the rotating sleeve (3) has a rear limiting flange (33) that is inserted into the positioning groove (10).

2. The rotating sleeve mounting structure for a multi-functional high-pressure nozzle according to claim 1, characterized in that, The locking pin (4) is a U-shaped pin. An arc groove (31) is provided on the outer circumferential surface of the rotating sleeve (3). The U-shaped pin passes through the nozzle seat (2), and the U-shaped end of the U-shaped pin is located in the arc groove (31). The base (1) has an annular locking groove (11), and the U-shaped pin passes through the locking groove (11).

3. The rotating sleeve mounting structure for a multi-functional high-pressure nozzle according to claim 2, characterized in that, The inner circumferential surface of the rotating sleeve (3) is provided with a plurality of limiting grooves (32) spaced apart along the circumferential direction, and the outer circumferential surface of the nozzle seat (2) has a plurality of protrusions (21), each protrusion (21) being embedded in the corresponding limiting groove (32).

4. The rotating sleeve mounting structure for a multi-functional high-pressure nozzle according to claim 3, characterized in that, The protrusion (21) has four parts, and each protrusion (21) has a through hole (210) inside, and the U-shaped pin passes through the four through holes (210).

5. The rotating sleeve mounting structure for a multi-functional high-pressure nozzle according to claim 1, characterized in that, The nozzle seat (2) is fitted with a nozzle sleeve (5) on the outside of the front end, and one end of the nozzle sleeve (5) wraps around the boss at the front end of the rotating sleeve (3).

6. The rotating sleeve mounting structure for a multi-functional high-pressure nozzle according to claim 1, characterized in that, The rotating sleeve (3) includes a left sleeve body and a right sleeve body, which are fastened together and fixedly connected by screws.

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