Low-pressure water outlet nozzle

Abstract

The utility model belongs to the technical field of kitchen and bath equipment, and relates to a low-pressure water outlet nozzle which comprises a shell and an inner core, the inner core is embedded in the upper end of the shell, a central water inlet and a peripheral water inlet are formed in the inner core, a ring body is arranged in the shell, the upper end of the ring body is connected with the bottom of the inner core in a sealed mode, and the lower end of the ring body is connected with the inner core. A central flow channel and a central water outlet which are communicated with the central water inlet are formed in the inner side of the ring body, a peripheral flow channel and a peripheral water outlet which are communicated with the peripheral water inlet are formed in the outer side of the ring body, a plug capable of sliding up and down is arranged at the central water inlet, and a spring is arranged between the plug and the bottom of the shell; the spring drives the plug to move upwards to seal the central water inlet, and the water inlet pressure drives the plug to move downwards to open the central water inlet. According to the low-pressure water outlet nozzle, the water outlet requirement of the low-pressure environment can be well met, and the user experience is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of kitchen and bathroom equipment, and relates to a low-pressure water outlet nozzle. Background Technique

[0002] A water outlet nozzle is a water supply terminal device. One end of the water outlet nozzle is connected to a water supply pipe, and the other end is provided with a water outlet. The water outlet nozzle can be installed on different kitchen and bathroom equipment, such as a sink, a washbasin or a bathtub, to improve the user experience.

[0003] Since the water pressure in the water supply pipe is not stable, it will seriously affect the water outlet effect of the water outlet nozzle. When the water pressure in the water supply pipe is too low, the water outlet of the water outlet nozzle often lacks strength and the flushing effect is very poor. In order to improve the flushing effect of low-pressure water, some water outlet nozzles adopt the method of reducing the number of holes and narrowing the aperture to increase the water outlet strength. However, too few holes will reduce the flushing area, and too small an aperture is also prone to blockage. Moreover, when the water pressure increases, too few holes and too small an aperture will also cause the water flow to be too fast, resulting in splashing and a stinging sensation, which will affect the user experience.

[0004] In view of this, it is very necessary to develop a water outlet nozzle that can adapt to the water pressure. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a low-pressure water outlet nozzle, which can well meet the water outlet requirements in a low-pressure environment and improve the user experience.

[0006] To solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0007] A low-pressure water outlet nozzle includes a housing and an inner core. The inner core is embedded in the upper end of the housing. The inner core is provided with a central water inlet and a peripheral water inlet. A ring body is arranged in the housing. The upper end of the ring body is hermetically connected to the bottom of the inner core. A central flow channel communicating with the central water inlet and a central water outlet are arranged inside the ring body. A peripheral flow channel communicating with the peripheral water inlet and a peripheral water outlet are arranged outside the ring body. A plug that slides up and down is arranged at the central water inlet. A spring is arranged between the plug and the bottom of the housing. The spring drives the plug to move upward to seal the central water inlet, and the inlet water pressure drives the plug to move downward to open the central water inlet.

[0008] In the above-mentioned low-pressure water outlet nozzle, the inner core includes a mounting seat and a plug seat. The mounting seat is fixedly clamped to the inner wall of the housing, and the inner cavity of the plug seat forms an installation cavity for the plug.

[0009] In the above-mentioned low-pressure water outlet nozzle, the mounting seat and the plug seat are connected by a plurality of radially arranged connecting strips, and peripheral water inlets are formed between adjacent connecting strips.

[0010] In the above-mentioned low-pressure water outlet nozzle, the upper end of the plug seat contracts inward to form a central water inlet, the radial dimension of the central water inlet is smaller than the radial dimension of the plug, the upper end of the plug forms a conical end that cooperates with the central water inlet, and a sealing structure is formed when the outer peripheral surface of the conical end abuts against the central water inlet. When the plug moves downward, a water inlet gap is formed between the outer peripheral surface of the conical end and the central water inlet.

[0011] In the above-mentioned low-pressure water outlet nozzle, the outer wall of the plug seat is in contact connection with the inner wall of the ring body. A limiting step that abuts against the upper end of the ring body is provided on the outer wall of the plug seat, and the outer diameter of the limiting step is the same as the outer diameter of the ring body; further, the connecting strip connects the outer peripheral surface of the limiting step and the bottom of the mounting seat, and further, the connecting strip is an L-shaped connecting strip.

[0012] In the above-mentioned low-pressure water outlet nozzle, a plurality of limiting pieces distributed radially are arranged in the inner cavity of the plug seat. The limiting pieces form a radial limiting structure for the plug, and a water inlet gap is formed between the limiting pieces.

[0013] In the above-mentioned low-pressure water outlet nozzle, a spring installation cavity with a lower opening is arranged in the plug, a spring installation seat is arranged at the bottom of the outer shell, and both ends of the spring are respectively installed in the spring installation cavity and the spring installation seat.

[0014] In the above-mentioned low-pressure water outlet nozzle, the outer shell, the ring body, the mounting seat, the plug seat, the plug, the spring, and the spring seat are all coaxially arranged.

[0015] In the above-mentioned low-pressure water outlet nozzle, a plurality of outer peripheral water outlets distributed circumferentially are arranged at the bottom of the outer shell on the outer side of the ring body, and a plurality of central water outlets distributed circumferentially are arranged at the bottom of the outer shell on the inner side of the ring body; preferably, the outer peripheral water outlets are arranged as a single-ring water outlet, the central water outlets are arranged as multi-ring water outlets, and preferably, the apertures of the outer peripheral water outlets and the central water outlets are the same.

[0016] Compared with the prior art, the present utility model has the following beneficial effects:

[0017] The present utility model provides a low-pressure water outlet nozzle. By arranging the inner core and the ring body, the inner cavity of the outer shell is divided into an independent outer peripheral water outlet channel and a central water outlet channel. Among them, the outer peripheral water outlet channel is in a constant connection state, and the connection state of the central water outlet channel is controlled by water pressure and a spring. When the water pressure or flow rate is large, the central water outlet channel and the outer peripheral water outlet channel are connected at the same time. When the water pressure or flow rate is small, water is discharged separately through the outer peripheral water outlet channel, so that the water outlet nozzle can maintain a substantially same water outlet effect under different water supply conditions, especially can ensure the water outlet strength under low-pressure conditions, thereby improving the user experience. Description of the Drawings

[0018] Figure 1 is a perspective view of the present utility model;

[0019] Figure 2 is a sectional view of the present utility model;

[0020] Figure 3 is an exploded view of the present utility model;

[0021] Reference numerals: 1, outer shell; 2, inner core; 3, central water inlet; 4, peripheral water inlet; 5, ring body; 6, central flow channel; 7, central water outlet; 8, peripheral flow channel; 9, peripheral water outlet; 10, plug; 11, spring; 12, mounting seat; 13, plug seat; 14, connecting strip; 15, tapered end; 16, limiting step; 17, limiting piece; 18, spring installation cavity; 19, spring mounting seat. Detailed implementation manners

[0022] The present utility model will be further described below with reference to the accompanying drawings in specific embodiments. See Figures 1 - 3 :

[0023] A low-pressure water outlet nozzle includes an outer shell 1 and an inner core 2. The inner core 2 is embedded in the upper end of the outer shell 1. A central water inlet 3 and a peripheral water inlet 4 are provided on the inner core 2. A ring body 5 is coaxially arranged in the outer shell 1. The upper end of the ring body 5 is hermetically connected to the bottom of the inner core 2. A central flow channel 6 communicating with the central water inlet 3 and a central water outlet 7 are arranged inside the ring body 5. A peripheral flow channel 8 communicating with the peripheral water inlet 4 and a peripheral water outlet 9 are arranged outside the ring body 5. A plug 10 that slides up and down is provided at the central water inlet 3. A spring 11 is arranged between the plug 10 and the bottom of the outer shell 1. The spring 11 drives the plug 10 to move upward to seal the central water inlet 3, and the incoming water pressure drives the plug 10 to move downward to open the central water inlet 3.

[0024] Compare with the attached Figure 1 to the attached Figure 3, in this embodiment, through the settings of the inner core 2 and the ring body 5, the water outlet channel is separated into an independent outer peripheral water outlet channel and a central water outlet channel. The outer peripheral water outlet channel consists of an outer peripheral water inlet 4, an outer peripheral flow channel 8, and an outer peripheral water outlet 9, while the central water outlet channel consists of a central water inlet 3, a central flow channel 6, and a central water outlet 7. When the water pressure is relatively low or the flow rate is relatively small (such as when the water pressure is less than 0.3 Mpa or the flow rate is less than 10 L / minute), the force exerted by the spring 11 on the plug 10 is greater than the force of the incoming water, and the plug 10 maintains a sealed state with the central water inlet 3. At this time, the water in the water supply pipe enters from the outer peripheral water inlet 4, passes through the outer peripheral flow channel 8, and then exits through the outer peripheral water outlet 9. When the water pressure is relatively high or the flow rate is relatively large (such as when the water pressure is greater than 0.3 Mpa or the flow rate is greater than 10 L / minute), the force exerted by the spring 11 on the plug 10 is less than the force of the incoming water, and the plug 10 moves downward to open the central water inlet 3. At this time, the water in the water supply pipe enters simultaneously from the outer peripheral water inlet 4 and the central water inlet 3, and respectively passes through the outer peripheral flow channel 8 and then exits through the outer peripheral water outlet 9, and passes through the central flow channel 6 and then exits through the central water outlet 7.

[0025] Further, the inner core 2 includes a mounting seat 12 and a plug seat 13. The mounting seat 12 is fixedly clamped to the inner wall of the outer shell 1. The inner cavity of the plug seat 13 forms a mounting cavity for the plug 10. Through the fixed clamping of the mounting seat 12 to the inner wall of the outer shell 1, the inner core 2 and the ring body 5 can simultaneously form a sealing structure and can also limit the plug 10 in the mounting cavity at the same time, so that the water outlet nozzle can be conveniently assembled.

[0026] In this embodiment, the setting method of the outer peripheral water inlet 4 is as follows: the mounting seat 12 and the plug seat 13 are connected by a plurality of radially arranged connecting strips 14, and the outer peripheral water inlet 4 is formed between adjacent connecting strips 14. By connecting the mounting seat 12 and the plug seat 13 with the connecting strips 14, the structural strength of the inner core 2 can be improved.

[0027] Control attachment Figure 2 , in this embodiment, the matching structure of the central water inlet 3 and the plug 10 is as follows: the upper end of the plug seat 13 contracts inward to form the central water inlet 3. The radial dimension of the central water inlet 3 is smaller than the radial dimension of the plug 10. A tapered end 15 that cooperates with the central water inlet 3 is formed at the upper end of the plug 10. When the outer peripheral surface of the tapered end 15 abuts against the central water inlet 3, a sealing structure is formed. When the plug 10 moves downward, an inlet gap is formed between the outer peripheral surface of the tapered end 15 and the central water inlet 3. The design of the reduced-diameter central water inlet 3 and the tapered end 15 of the plug 10 can form an axial limiting structure for the plug 10 to prevent it from coming out, and a better sealing effect of the plug 10 can also be obtained.

[0028] The outer wall of the above-mentioned plug seat 13 is in contact connection with the inner wall of the ring body 5. A limiting step 16 that abuts against the upper end of the ring body 5 is arranged on the outer wall of the plug seat 13. The outer diameter of the limiting step 16 is the same as the outer diameter of the ring body 5. Through the above structure, a centering structure and an axial positioning structure can be formed between the plug seat 13 and the ring body 5, making the structure of the water outlet nozzle more stable. Further, the connecting strip 14 connects the outer peripheral surface of the limiting step 16 and the bottom of the mounting seat 12. Further, the connecting strip 14 is an L-shaped connecting strip 14.

[0029] In order to ensure the axial movement of the plug 10 while not affecting the water inlet, a plurality of limiting pieces 17 distributed radially are arranged in the inner cavity of the plug seat 13. The limiting pieces 17 form a radial limiting structure for the plug 10, and an inlet gap is formed between the limiting pieces 17.

[0030] In this embodiment, the installation structure of the spring 11 is as follows: a spring installation cavity 18 with a lower opening is arranged in the plug 10, a spring installation seat 19 is arranged at the bottom of the outer shell 1, and the two ends of the spring 11 are respectively installed in the spring installation cavity 18 and on the spring installation seat 19.

[0031] In this embodiment, the outer shell 1, the ring body 5, the mounting seat 12, the plug seat 13, the plug 10, the spring 11, and the spring installation seat 19 are all coaxially arranged.

[0032] Refer to the appendix Figure 3 , a plurality of outer peripheral water outlets 9 distributed circumferentially are arranged at the bottom of the outer shell 1 on the outer side of the ring body 5, and a plurality of central water outlets 7 distributed circumferentially are arranged at the bottom of the outer shell 1 on the inner side of the ring body 5; in this embodiment, the outer peripheral water outlets 9 are arranged as single-ring water outlets, the central water outlets 7 are arranged as double-ring water outlets, and the apertures of the outer peripheral water outlets 9 and the central water outlets 7 are the same.

[0033] The above embodiments are only the preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A low-pressure water outlet nozzle, comprising a housing (1) and an inner core (2), characterized in that, The inner core (2) is embedded in the upper end of the outer shell (1). A central water inlet (3) and a peripheral water inlet (4) are arranged on the inner core (2). A ring body (5) is arranged in the outer shell (1). The upper end of the ring body (5) is hermetically connected to the bottom of the inner core (2). A central flow channel (6) communicating with the central water inlet (3) and a central water outlet (7) are arranged inside the ring body (5). A peripheral flow channel (8) communicating with the peripheral water inlet (4) and a peripheral water outlet (9) are arranged outside the ring body (5). A plug (10) that slides up and down is arranged at the central water inlet (3). A spring (11) is arranged between the plug (10) and the bottom of the outer shell (1). The spring (11) drives the plug (10) to move upward to seal the central water inlet (3), and the water inlet water pressure drives the plug (10) to move downward to open the central water inlet (3).

2. The low-pressure water outlet nozzle according to claim 1, characterized in that, The inner core (2) includes an annular mounting seat (12) and a plug seat (13). The mounting seat (12) is fixedly connected to the inner wall of the outer shell (1) by clamping. The inner cavity of the plug seat (13) forms an installation cavity for the plug (10).

3. The low-pressure water outlet nozzle according to claim 2, characterized in that, The mounting seat (12) and the plug seat (13) are connected by a number of radially arranged connecting strips (14). Peripheral water inlets (4) are formed between adjacent connecting strips (14).

4. A low-pressure water outlet nozzle according to claim 2, characterized in that, The upper end of the plug seat (13) contracts inward to form the central water inlet (3). The radial dimension of the central water inlet (3) is smaller than the radial dimension of the plug (10). A conical end (15) that cooperates with the central water inlet (3) is formed at the upper end of the plug (10).

5. The low-pressure water outlet nozzle according to claim 2, characterized in that, The outer wall of the plug seat (13) is in contact connection with the inner wall of the ring body (5). A limiting step (16) that abuts against the upper end of the ring body (5) is arranged on the outer wall of the plug seat (13). The outer diameter of the limiting step (16) is the same as the outer diameter of the ring body (5).

6. The low-pressure water outlet nozzle according to claim 2, characterized in that, A number of radially distributed limiting pieces (17) are arranged in the inner cavity of the plug seat (13). The limiting pieces (17) form a radial limiting structure for the plug (10). Water inlet gaps are formed between the limiting pieces (17).

7. A low-pressure water outlet nozzle according to claim 1, characterized in that, A spring installation cavity (18) with a lower opening is arranged inside the plug (10). A spring installation seat (19) is arranged at the bottom of the outer shell (1). The two ends of the spring (11) are respectively installed in the spring installation cavity (18) and on the spring installation seat (19).

8. A low-pressure water outlet nozzle according to claim 1, characterized in that, A number of peripherally distributed peripheral water outlets (9) are arranged at the bottom of the outer shell (1) outside the ring body (5). A number of peripherally distributed central water outlets (7) are arranged at the bottom of the outer shell (1) inside the ring body (5).

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