A high pressure rotary spray head

Abstract

The utility model relates to high pressure shower head field discloses a high pressure rotary shower head, including shower head unit and support body, be provided with a plurality of spouts on shower head unit, the center of each spout is in the same circle, and the shower head unit is installed on the support body and can rotate relatively between the shower head unit and the support body, the support body includes the body and the sleeve pipe installed on the body, is provided with the water channel for liquid flow in the body, and the one end close to the spout of body is provided with the water outlet, the one end of sleeve pipe is installed in the water outlet end of water channel, and the other end is inserted in the water outlet, the water channel extends to the water outlet through the sleeve pipe, rotates the shower head unit or rotates the support body, can make the water outlet correspond to different spouts, the shower head has the advantages such as small size, big pressure bearing, low cost.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure cleaner accessories, and mainly to a high-pressure rotary nozzle. Background Technology

[0002] The water hose connector of a high-pressure washer nozzle can rotate relative to the nozzle to allow different types of water streams to be sprayed outward from the nozzle. For example, CN115415090A – a high-pressure washer nozzle – provides a high-pressure rotary nozzle. Its movable part rotates to connect different nozzles with the water channel, enabling the switching of different spraying effects.

[0003] In existing technical solutions, since there are generally multiple nozzles, in order to maximize the number of nozzles, the circumference of each nozzle needs to be as large as possible. On the other hand, due to cost and manufacturing considerations, the outer diameter of the nozzle needs to be as small as possible. Therefore, there is a contradiction between the two. The existing solution is to place the nozzles as close as possible to the edge of the nozzle when the outer diameter of the nozzle is fixed.

[0004] Secondly, due to its internal weight-reduction design, there is a hollow design on the inside of the water outlet. As a result, part of the water channel under the water outlet is exposed in the space, making it difficult to guarantee the strength of the water outlet. Existing solutions generally use a one-piece molding structure, completing the design of the water outlet and the water channel under the water outlet during the molding of the main body. Since the water outlet and the nozzle are located in the same position, the water outlet is also located at the edge of the main body, resulting in the water outlet being very close to the edge. It is difficult to guarantee the strength of the plastic main body at this point, while using a metal main body is costly and difficult to mold, making it difficult to guarantee the yield rate. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by providing a high-pressure rotary nozzle.

[0006] A high-pressure rotary nozzle includes a nozzle unit and a support body;

[0007] The nozzle unit is equipped with multiple nozzles, the centers of which are located on the same circumference. The nozzle unit is mounted on the support and can rotate relative to the support.

[0008] The support includes a main body and a sleeve installed on the main body. The main body is provided with a water channel for liquid flow, and a water outlet is provided at the end of the main body near the nozzle.

[0009] One end of the sleeve is installed at the outlet of the water channel, and the other end is inserted into the outlet. The water channel extends to the outlet through the sleeve. By rotating the nozzle unit or the support body, the outlet can be made to correspond to different nozzles.

[0010] Preferably, the main body is provided with a groove, the water outlet end of the water channel is located on the bottom surface of the groove, the water outlet is located on the upper side of the groove, and the sleeve is installed between the water outlet end of the water channel and the water outlet.

[0011] Preferably, the upper end of the sleeve is inserted into the water outlet, and the main body extends to the water outlet end of the water channel with a support seat. The middle part of the support seat is provided with a channel communicating with the water channel, and the lower end of the sleeve is installed on the support seat.

[0012] Preferably, a sealing ring is provided on the outside of the support base, and the lower end of the sleeve is fitted onto the outside of the support base.

[0013] Preferably, it also includes a sealing part and a support spring. The sealing part is installed inside the sleeve, and the support spring is located inside the sleeve. One end of the support spring is supported on the body, and the other end is supported on the sealing part. The sealing part is sealed by contacting the nozzle unit under the action of the spring. A second channel is provided in the middle of the sealing part. When the nozzle position coincides with the position of the second channel, the water channel and the liquid in the sleeve are transported to the nozzle through the second channel.

[0014] Preferably, it also includes a sealing part and a support spring. The sealing part is installed inside the sleeve, and the support spring is located inside the sleeve. One end of the support spring is supported on the support seat, and the other end is supported on the sealing part. The sealing part abuts against the nozzle unit under the action of the spring. A second channel is provided in the middle of the sealing part, through which the water channel and the liquid in the sleeve are transported to the nozzle.

[0015] Preferably, the sleeve is made of metal.

[0016] Preferably, the sleeve is made of stainless steel.

[0017] Preferably, the main body is provided with a spring ball unit, the nozzle unit includes a nozzle seat and an outer shell tube outside the nozzle seat, the nozzle is set on the nozzle seat, and the outer shell tube is provided with a limiting groove. The number and position of the limiting grooves correspond to the nozzle. When the spring ball unit cooperates with the limiting groove, the nozzle corresponds to the water outlet.

[0018] Preferably, the nozzle unit includes a housing tube made of stainless steel, aluminum alloy, or plastic.

[0019] Compared with existing technologies, this solution offers the following advantages: This solution designs a high-pressure rotary nozzle. The support structure, through the cooperation of the main body and the sleeve, enhances the strength of the outlet, significantly improving the overall strength compared to existing structures. Furthermore, it allows for a smaller overall nozzle size, simplifies the manufacturing process, and reduces costs. The external aluminum alloy structure also significantly reduces the product's weight. Additionally, the positioning structure has a longer lifespan. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the device.

[0021] Figure 2 for Figure 1 A schematic diagram of the structure of the nozzle unit.

[0022] Figure 3 yes Figure 2 A schematic diagram of the structure after removing the sleeve.

[0023] Figure 4 yes Figure 3 A schematic diagram of the structure of the main body, sealing part, and supporting spring.

[0024] Figure 5 This is a schematic diagram of the structure of the main body.

[0025] Figure 6 This is a cross-sectional view of the main body.

[0026] Figure 7 This is a structural diagram showing the removal of the main body sleeve, support spring, sealing part, and nozzle unit.

[0027] Figure 8 This is a structural diagram of the sleeve, sealing part, and supporting spring.

[0028] Figure 9 This is a schematic diagram of the outer casing tube.

[0029] Figure 10 yes Figure 1 A sectional view.

[0030] The technical names of the reference numerals in the figure are as follows: 1—nozzle unit, 2—support body, 11—nozzle, 21—body, 22—sleeve, 211—waterway, 212—water outlet, 213—water outlet, 214—groove, 215—bottom surface, 216—upper side, 217—support base, 2171—channel one, 12—sealing part, 13—support spring, 121—channel two, 14—nozzle seat, 15—outer shell tube, 151—limiting groove, 3—spring ball unit, 4—connector. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0032] Example 1

[0033] A high-pressure rotary nozzle includes a nozzle unit 1 and a support body 2. As described in the background art, the support body 2 has a water channel 211 for high-pressure liquid to pass through. Different nozzles 11 are provided in the nozzle area. The high-pressure liquid in the water channel 211 will produce different effects after passing through different nozzles 11. Therefore, to achieve this function, the support body 21 and the nozzle unit 1 must be able to rotate relative to each other, thereby allowing different nozzles 11 to correspond to the outlets 213 of the water channel 211.

[0034] It is evident that the nozzle unit 1 is provided with multiple nozzles 11, and the centers of each nozzle 11 are located on the same circumference. This ensures that each nozzle 11 can rotate to the outlet 213 of the support body 2 to complete water discharge during rotation. The nozzle unit 1 is mounted on the support body 2, and the nozzle unit 1 and the support body 2 can rotate relative to each other. In this embodiment, the two are arranged on the same axis, and the rotation of the nozzle unit 1 or the support body 2 is around this axis. Obviously, the center of the circumference where the centers of all nozzles 11 are located is also on this axis. In this embodiment, the support body 2 is a non-rotating component, and the nozzle unit 1 rotates around this axis, wherein the nozzle unit 1 is sleeved on the support body 2.

[0035] The support 2 includes a body 21 and a sleeve 22 mounted on the body 21. The body 21 contains a water channel 211 for liquid flow, and an outlet 213 is located at the end of the body 21 near the nozzle 11. In this example, the body 21 is a one-piece molded structure. As can be seen from the above description, the outlet end 212 of the water channel 211 does not directly reach the outlet 213, and the outlet 213 forms a channel for liquid passage. Instead, the sleeve 22 connects the two to form a closed channel. The inner wall of the outlet 213 that actually contacts the liquid is the inner wall of the sleeve 22, and the water pressure is borne by the inner wall of the sleeve 22.

[0036] One end of the sleeve 22 is installed at the outlet 212 of the water channel 211, and the other end is inserted into the outlet 213; obviously, both ends need to be sealed to avoid leakage; the water channel 211 extends to the outlet 213 through the sleeve 22; rotating the nozzle unit 1 or rotating the support body 2 can make the outlet 213 correspond to different nozzles 11.

[0037] Due to the requirement of lightweight design, a slot 214 is provided on the main body 21. The water outlet 212 of the water channel 211 is located on the bottom surface 215 of the slot 214, and the water outlet 213 is located on the upper side 216 of the slot 214. In this solution, the upper end means the end closer to the nozzle. The sleeve 22 is installed between the water outlet 212 of the water channel 211 and the water outlet 213.

[0038] The upper end of the sleeve 22 is inserted into the outlet 213. The main body 21 extends to the outlet end 212 of the water channel 211 with a support 217. The middle of the support 217 is provided with a channel 2171 communicating with the water channel 211. The lower end of the sleeve 22 is installed on the support 217. The support 217 and the main body 21 are integrally formed. The cross-section of the support 217 is the same as the cross-section of the inner hole at the lower end of the sleeve 22. The lower end of the sleeve 22 is inserted into the support 217. The support 217 plays a guiding and limiting role in the installation of the sleeve 22.

[0039] In this embodiment, a sealing ring is provided on the outside of the support base 217, and the lower end of the sleeve 22 is sleeved on the outside of the support base 217. Obviously, the sealing ring plays a sealing role for the sleeve 22 and the support base 217.

[0040] To achieve nozzle positioning, the system also includes a sealing part 12 and a support spring 13. The sealing part 12 is installed inside the sleeve 22, and the support spring 13 is located inside the sleeve 22. One end of the support spring 13 is supported on the body 21, and the other end is supported on the sealing part 12. Under the action of the spring, the sealing part 12 abuts and seals against the nozzle unit 1. A second channel 121 is provided in the middle of the sealing part 12. When the position of the nozzle 11 coincides with the position of the second channel 121, the liquid in the water channel 211 and the sleeve 22 is transported to the nozzle 11 through the second channel 121. The sealing part 12 always seals against the nozzle unit 1, thereby ensuring that water can only be sprayed when the water outlet 213 corresponds to the position of the nozzle 11.

[0041] One end of the support spring 13 is supported on the support base 217, and the other end is supported on the sealing part 12. The sealing part 12 abuts against the nozzle unit 1 under the action of the spring. A second channel 121 is provided in the middle of the sealing part 12, through which the liquid in the water channel 211 and the sleeve 22 is transported to the nozzle 11. The support spring 13 can provide reliable support for the sealing part 12, ensuring that it exerts pressure on the nozzle unit 1 and ensuring the sealing effect.

[0042] In this embodiment, the sleeve 22 is made of metal, specifically stainless steel. The stainless steel sleeve 22 provides reliable light resistance to withstand the impact of high-pressure water flow, eliminating the need for the inner wall of the outlet 213 to bear pressure.

[0043] The main body 21 is equipped with a spring ball bearing unit 3, which provides a positioning function. The nozzle unit 1 includes a nozzle seat 14 and an outer casing tube 15. The nozzle 11 is disposed on the nozzle seat 14. The outer casing tube 15 is provided with limiting grooves 151, the number and position of which correspond to the nozzle 11. When the spring ball bearing unit 3 cooperates with the limiting grooves 151, the nozzle 11 corresponds to the water outlet 213. The structure of the nozzle seat 14 is a known technical solution, which can be fixedly connected to the sleeve 22. The inner ring of the outer casing tube 15 is threadedly connected to the nozzle seat 14. Therefore, the outer casing tube 15 and the nozzle seat 14 can rotate synchronously. The outer casing tube 15 is connected to the main body 21 through a rotating connector 4. The connector 4 is rotatably connected to the main body 21, and the outer ring of the connector 4 is threadedly connected to the lower end of the outer casing tube 15.

[0044] When the above positioning structure is working, rotating the outer shell tube 15 causes the inner wall of the outer shell tube 15 to press against the ball of the spring ball unit 3, compressing the spring. When the limiting groove 151 corresponds to the ball, the ball is pushed outward into the limiting groove 151 by the spring, thus completing the positioning. Since the limiting groove 151 corresponds to the position of the nozzle 11, and the position setting of the water outlet 213 and the ball unit is set, the water outlet 213 can be aligned with one of the nozzles 11 each time the ball corresponds to the limiting groove 151. In this embodiment, the nozzle unit 1 includes an outer shell tube 15, which is a metal tubular structure. The upper and lower parts of the inner wall of the outer shell tube 15 are provided with threads, which are used to connect with the nozzle seat 14 and the connector 4, respectively.

[0045] Example 2

[0046] The difference between this embodiment and Embodiment 1 is that the material of the body 21 is plastic.

[0047] Example 3

[0048] The difference between this embodiment and embodiment 1 is that the outer wall of the sleeve 22 is attached to the inner wall of the outlet 213.

Claims

1. A high-pressure rotary nozzle, characterized in that: It includes a nozzle unit (1) and a support body (2); The nozzle unit (1) is provided with multiple nozzles (11), the center of each nozzle (11) is on the same circumference, the nozzle unit (1) is mounted on the support body (2) and the nozzle unit (1) and the support body (2) can rotate relative to each other; The support (2) includes a body (21) and a sleeve (22) installed on the body (21). The body (21) is provided with a water channel (211) for liquid flow, and the end of the body (21) near the nozzle (11) is provided with a water outlet (213). One end of the sleeve (22) is installed at the outlet end (212) of the water channel (211), and the other end is inserted into the outlet (213); the water channel (211) extends to the outlet (213) through the sleeve (22); by rotating the nozzle unit (1) or rotating the support body (2), the outlet (213) can correspond to different nozzles (11).

2. The high-pressure rotary nozzle according to claim 1, characterized in that: The main body (21) is provided with a slot (214), the water outlet (212) of the water channel (211) is located on the bottom surface (215) of the slot (214), the water outlet (213) is located on the upper side (216) of the slot (214), and the sleeve (22) is installed between the water outlet (212) of the water channel (211) and the water outlet (213).

3. A high-pressure rotary nozzle according to claim 1, characterized in that: The upper end of the sleeve (22) is inserted into the outlet (213). The main body (21) extends to the outlet end (212) of the water channel (211) with a support seat (217). The middle part of the support seat (217) is provided with a channel (2171) communicating with the water channel (211). The lower end of the sleeve (22) is installed on the support seat (217).

4. A high-pressure rotary nozzle according to claim 3, characterized in that: A sealing ring is provided on the outside of the support base (217), and the lower end of the sleeve (22) is fitted on the outside of the support base (217).

5. A high-pressure rotary nozzle according to claim 1 or 2, characterized in that: It also includes a sealing part (12) and a support spring (13). The sealing part (12) is installed inside the sleeve (22), and the support spring (13) is located inside the sleeve (22). One end of the support spring (13) is supported on the body (21), and the other end is supported on the sealing part (12). The sealing part (12) is sealed against the nozzle unit (1) under the action of the spring. A second channel (121) is provided in the middle of the sealing part (12). When the position of the nozzle (11) coincides with the position of the second channel (121), the liquid in the water channel (211) and the sleeve (22) is transported to the nozzle (11) through the second channel (121).

6. A high-pressure rotary nozzle according to claim 3 or 4, characterized in that: It also includes a sealing part (12) and a support spring (13). The sealing part (12) is installed inside the sleeve (22), and the support spring (13) is located inside the sleeve (22). One end of the support spring (13) is supported on the support seat (217), and the other end is supported on the sealing part (12). The sealing part (12) abuts against the nozzle unit (1) under the action of the spring. A second channel (121) is provided in the middle of the sealing part (12). The liquid in the water channel (211) and the sleeve (22) is transported to the nozzle (11) through the second channel (121).

7. A high-pressure rotary nozzle according to claim 1, 2, 3, or 4, characterized in that: The sleeve (22) is made of metal, and the outer wall of the upper end of the sleeve (22) is attached to the inner wall of the outlet (213).

8. A high-pressure rotary nozzle according to claim 7, characterized in that: The sleeve (22) is made of stainless steel.

9. A high-pressure rotary nozzle according to claim 1, characterized in that: The main body (21) is provided with a spring ball unit (3), the nozzle unit (1) includes a nozzle seat (14) and an outer shell tube (15) outside the nozzle seat (14), the nozzle (11) is provided on the nozzle seat (14), and the outer shell tube (15) is provided with a limiting groove (151). The number and position of the limiting groove (151) correspond to the nozzle (11). When the spring ball unit (3) cooperates with the limiting groove (151), the nozzle (11) corresponds to the water outlet (213).

10. A high-pressure rotary nozzle according to claim 1, 2, 3, 4, or 9, characterized in that: The nozzle unit (1) includes an outer shell tube (15), which is a metal tubular structure. The upper and lower parts of the inner wall of the outer shell tube (15) are threaded.

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