A shower head

Abstract

This invention discloses a shower head, including a fixed base, a water outlet component, a needle plate, and a water-stopping lip. The water outlet component has several water outlet holes and is fixedly connected to the fixed base, forming a water distribution cavity between them. The lower surface of the needle plate has several pins, the upper end of which has a contact portion. The water-stopping lip is an elastic annular body located within the water distribution cavity and arranged along the outer periphery of the water outlet holes. In the initial state, the lower part of the pin is inserted into the water outlet hole, and the water-stopping lip surrounds the outer periphery of the pin. In the water inlet state, the needle plate moves upward to disengage the pins from the water outlet holes. In the water shut-off state, the pins return to their initial position. When the shower head is tilted, the water-stopping lip can be deformed towards the pins by the pressure of the residual water in the water distribution cavity until it presses against the contact portion, thereby blocking the connection between the water distribution cavity and the water outlet holes. This invention utilizes the residual water pressure in the water distribution cavity to drive the water-stopping lip to automatically close the water outlet passage, so that the residual water in the water distribution cavity quickly stops dripping.

Description

Technical Field

[0001] This invention relates to the field of shower head technology, and in particular to a shower head. Background Technology

[0002] Existing descaling sprays on the market leave residual water dripping for a long time after the water is turned off. This is especially true when the spray is tilted, as the water pressure inside the spray chamber increases, making the dripping more noticeable. Furthermore, the lower the water outlet is on the tilted spray, the greater the water pressure and the longer the dripping time. Summary of the Invention

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the related art. To this end, the present invention proposes a shower head.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] A shower head according to an embodiment of the present invention includes:

[0006] Fixed base;

[0007] A water outlet component is located below the fixed base. The water outlet component has several water outlet holes. The water outlet component is fixedly connected to the fixed base, and the two form a water distribution cavity.

[0008] A needle plate is movably disposed within the water distribution chamber. The lower surface of the needle plate is provided with a plurality of ejector pins, and the upper end of each ejector pin is provided with an abutment portion.

[0009] The water-stopping lip is an elastic ring-shaped body, located inside the water distribution cavity and arranged along the outer periphery of the water outlet hole;

[0010] In the initial state, the lower part of the ejector pin is inserted into the water outlet hole, and the water-stopping lip surrounds the outer periphery of the ejector pin;

[0011] In the water inlet state, the needle plate moves upward to disengage the ejector pin from the water outlet.

[0012] When the water is turned off, the ejector pin returns to its initial position. When the shower head is tilted, the water-stopping lip can be deformed towards the ejector pin by the pressure of the residual water in the water distribution chamber until it presses against the abutment part, thereby blocking the connection between the water distribution chamber and the water outlet.

[0013] The shower head according to an embodiment of the present invention has at least the following beneficial effects:

[0014] This invention utilizes the residual water pressure within the water distribution chamber to drive the sealing lip to automatically close the water outlet passage, quickly stopping the dripping of residual water within the water distribution chamber. When the shower head is tilted, the elasticity of the sealing lip after the water is turned off is less than the pressure of the residual water within the water distribution chamber. Consequently, the sealing lip deforms inward under the pressure of the residual water until it fits against the contact part, closing the water outlet passage and preventing water from dripping after the shower head is turned off.

[0015] According to some embodiments of the present invention, the abutting part is a flange circumferentially disposed on the outer peripheral wall of the upper end of the ejector pin. When the water is turned off and the shower head is tilted, the inner peripheral wall of the water-stopping lip abuts against the flange.

[0016] According to some embodiments of the present invention, in the initial state, a space is reserved between the water-stopping lip and the abutting portion for the water-stopping lip to deform.

[0017] According to some embodiments of the present invention, the lower surface of the needle plate is provided with a plurality of downward-facing inner holes surrounded by a first annular wall, and the ejector pins are located one-to-one in the inner holes; in the initial state, the vertical distance h1 from the top wall of the inner hole to the water outlet is greater than the height h2 of the water-stopping lip, the water-stopping lip is located in the inner hole, and the outer side of the water-stopping lip forms a clearance fit or an interference fit with the first annular wall; in the water-off state and when the shower head is horizontal, the pressure of the residual water in the water distribution chamber is less than the elasticity of the water-stopping lip, so that the outer side of the water-stopping lip maintains a clearance fit or an interference fit with the first annular wall.

[0018] According to some embodiments of the present invention, the lower surface of the needle plate is provided with a plurality of limiting posts, and in the initial state, the lower end of the limiting posts abuts against the water outlet component.

[0019] According to some embodiments of the present invention, a vertical water inlet pipe section is formed on the fixed base, a second annular wall is provided on the upper surface of the water outlet component, a guide hole and a pressure bearing surface arranged around the guide hole are formed on the needle plate, the needle plate is slidably sleeved on the water inlet pipe section through the guide hole, and the outer peripheral wall of the water inlet pipe section and the inner peripheral wall of the guide hole form a dynamic seal, a water outlet channel is formed between the second annular wall and the water inlet pipe section, an elastic element is provided between the fixed base and the needle plate, the elastic element applies a downward elastic force to the needle plate, and in the initial state, the pressure bearing surface abuts against the top of the second annular wall so that the water inlet pipe section, the pressure bearing surface and the second annular wall form a closed energy storage cavity.

[0020] According to some embodiments of the present invention, an annular cavity is formed on the needle plate surrounding the guide hole, the opening of the annular cavity faces downward, the pressure-bearing surface is the top wall of the annular cavity, and in the initial state, the second annular wall is located in the annular cavity.

[0021] According to some embodiments of the present invention, a sealing ring is provided on the outer peripheral wall of the water inlet pipe section, and the sealing ring always abuts against the inner peripheral wall of the guide hole during the movement of the needle plate.

[0022] According to some embodiments of the present invention, the water outlet component includes a water outlet panel and a water outlet mesh. The water outlet panel is made of a rigid material and is fixedly connected to the fixing base. The water outlet mesh is made of silicone material. Water outlet holes are formed on the water outlet mesh. The water outlet panel is provided with a plurality of through holes. The water outlet mesh is located on the inner side of the water outlet panel, and the water outlet holes correspond one-to-one with the through holes.

[0023] According to some embodiments of the present invention, the water outlet mesh and the water-stopping lip are integrally formed.

[0024] According to some embodiments of the present invention, the upper part of the water-stopping lip gradually expands outward from bottom to top to form a trumpet-shaped wide opening.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0027] Figure 1 This is an exploded view of the shower head of the present invention;

[0028] Figure 2 This is a partial structural diagram of the needle plate of the present invention;

[0029] Figure 3 This is a cross-sectional view of the shower head of the present invention placed horizontally;

[0030] Figure 4 yes Figure 3 A magnified view of a section at point B (initial state and water-closing state);

[0031] Figure 5 This is a schematic diagram of the water inlet state of the shower head of the present invention;

[0032] Figure 6 This is a cross-sectional view of the shower head of the present invention placed at an angle;

[0033] Figure 7 yes Figure 6 A magnified view of a section at point B (water shut off).

[0034] Reference numerals: fixed base 100, water inlet pipe section 110, water outlet panel 200, second annular wall 210, water outlet mesh 300, water outlet hole 310, water stop lip 312, water distribution cavity 400, needle plate 500, ejector pin 510, abutment part 511, first annular wall 520, inner hole 521, limiting post 530, guide hole 540, pressure bearing surface 550, annular cavity 560, elastic element 600. Detailed Implementation

[0035] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] In the description of this invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0037] Reference Figure 1-7 A shower head, comprising:

[0038] Fixed base 100;

[0039] The water outlet component is located below the fixed base 100. The water outlet component is provided with several water outlet holes 310. The water outlet component is fixedly connected to the fixed base 100 and the two form a water distribution cavity 400.

[0040] The needle plate 500 is movably disposed within the water distribution cavity 400. The lower surface of the needle plate 500 is provided with several ejector pins 510, and the upper end of the ejector pin 510 is provided with an abutment part 511.

[0041] The water-stopping lip 312 is an elastic annular body, located inside the water distribution cavity 400 and arranged along the outer periphery of the water outlet 310.

[0042] In the initial state, the lower part of the ejector pin 510 is inserted into the water outlet 310, and the water-stopping lip 312 surrounds the outer periphery of the ejector pin 510;

[0043] In the water inlet state, the needle plate 500 moves upward to disengage the ejector pin 510 from the water outlet 310;

[0044] When the water is turned off, the ejector pin 510 returns to its initial position. When the shower head is tilted, the water-stopping lip 312 can be deformed towards the ejector pin 510 by the pressure of the residual water in the water distribution chamber 400 until it presses against the abutment part 511, thereby blocking the connection between the water distribution chamber 400 and the water outlet 310.

[0045] In some embodiments of the present invention, such as Figure 4 As shown, the abutting part 511 is a flange that is arranged around the outer peripheral wall of the upper end of the ejector pin 510. When the water is turned off and the shower head is tilted, the inner peripheral wall of the water-stopping lip 312 abuts against the flange.

[0046] According to some embodiments of the present invention, such as Figure 4 As shown, in the initial state, a space is reserved between the water-stop lip 312 and the abutment portion 511 for the water-stop lip 312 to deform. This reserved deformation space can compensate for positional errors between each water-stop lip 312 and the ejector pin 510. Furthermore, considering that the needle plate 500 may warp and deform during actual processing, which could easily lead to wrinkling and inconsistent fit of the water-stop lip 312, the reserved deformation space can prevent this problem.

[0047] In some embodiments of the present invention, such as Figure 2-4 As shown, the lower surface of the needle plate 500 is provided with several downward-facing inner holes 521 surrounded by the first annular wall 520, and the ejector pins 510 are located in the inner holes 521 one by one. In the initial state, the vertical distance h1 from the top wall of the inner hole 521 to the water outlet 310 is greater than the height h2 of the water-stopping lip 312. The water-stopping lip 312 is located in the inner hole 521, and the outer side of the water-stopping lip 312 forms a clearance fit or an interference fit with the first annular wall 520. When the water is turned off and the shower head is horizontal, the pressure of the residual water in the water distribution chamber 400 is less than the elasticity of the water-stopping lip 312, so that the outer side of the water-stopping lip 312 maintains a clearance fit or an interference fit with the first annular wall 520. When the shower head is in horizontal use, the residual water pressure in the water distribution chamber 400 after the water is turned off is P0=ρgh0, where h0 is the height of the water distribution chamber 400 itself. Since the elasticity of the water-stopping lip 312 is greater than the residual water pressure P0, the water-stopping lip 312 does not deform and maintains a clearance fit or interference fit with the first annular wall 520. In the clearance fit, since the fit gap is very small, the residual water pressure in the horizontal state is very small. When the water is turned off, a water film will be formed in the fit gap. Therefore, the water-stopping lip 312 and the first annular wall 520 can close the water outlet passage S2 by forming a clearance fit or interference fit.

[0048] In some embodiments of the present invention, such as Figure 2As shown, the lower surface of the needle plate 500 is provided with several limiting posts 530. In the initial state, the lower ends of the limiting posts 530 abut against the water outlet component. In this embodiment, each ejector pin 510 has three limiting posts 530 distributed circumferentially. The limiting posts 530 prevent the needle plate 500 from being excessively pressed down in local areas during reset, which could deform the water-stop lip 312 and cause it to fail.

[0049] In some embodiments of the present invention, such as Figure 3-4 As shown, a vertical water inlet pipe section 110 is formed on the fixed base 100, and a second annular wall 210 is provided on the upper surface of the water outlet component. A guide hole 540 and a pressure bearing surface 550 are formed on the needle plate 500. The needle plate 500 is slidably sleeved on the water inlet pipe section 110 through the guide hole 540, and the outer peripheral wall of the water inlet pipe section 110 and the inner peripheral wall of the guide hole 540 form a dynamic seal. A water outlet channel is formed between the second annular wall 210 and the water inlet pipe section 110. An elastic member 600 is provided between the fixed base 100 and the needle plate 500. The elastic member 600 applies a downward elastic force to the needle plate 500. In the initial state, the pressure bearing surface 550 abuts against the top of the second annular wall 210 so that the water inlet pipe section 110, the pressure bearing surface 550 and the second annular wall 210 form a closed energy storage cavity. After water is supplied, the water flows from the inlet to the energy storage chamber. When the water pressure is greater than the elastic force F1 of the elastic element 600, the water pressure acts on the pressure bearing surface 550, driving the needle plate 500 to move upward to position A", opening the water outlet passage S1, and the water can then flow to the water distribution chamber 400.

[0050] In some embodiments of the present invention, an annular cavity 560 is formed on the needle plate 500, which is arranged around the guide hole 540. The opening of the annular cavity 560 faces downward, and the pressure-bearing surface 550 is the top wall of the annular cavity 560. In the initial state, the second annular wall 210 is located in the annular cavity 560.

[0051] In some embodiments of the present invention, a sealing ring is provided on the outer peripheral wall of the water inlet pipe section 110, and the sealing ring always abuts against the inner peripheral wall of the guide hole 540 during the movement of the needle plate 500.

[0052] In some embodiments of the present invention, the water outlet component includes a water outlet panel 200 and a water outlet net 300. The water outlet panel 200 is made of rigid material and is fixedly connected to the fixing base 100. The water outlet net 300 is made of silicone material, and water outlet holes 310 are formed on the water outlet net 300. The water outlet panel 200 is provided with a plurality of through holes, and the water outlet net 300 is located on the inner side of the water outlet panel 200, and the water outlet holes 310 correspond one-to-one with the through holes.

[0053] In some embodiments of the present invention, the water outlet mesh 300 and the water-stopping lip 312 are integrally formed.

[0054] In some embodiments of the present invention, the upper part of the water stop lip 312 gradually expands outward from bottom to top to form a flared wide mouth.

[0055] Working principle: Refer to Figure 4-7 , in the water inlet state, the thimble 510 moves upward by a distance L along with the needle plate 500. The thimble 510 disengages from the water outlet hole 310. At this time, the inner hole 521 also moves upward by a distance L along with the needle plate 500 and disengages from the water stop lip 312, opening the water outlet passage S2 to ensure that water can flow smoothly out of the water outlet hole 310, realizing the shower function. When the shower head is in the use state with an inclination angle a (0° < a < 90°), after turning off the water, the residual water pressure P1 in the water distribution chamber 400 = ρgh1 = ρgdsin a. Since the elastic force F1 of the elastic member 600 > the residual water pressure P1, the needle plate 500 is driven by the elastic force F1 of the elastic member 600 to move downward from position A" to position A, and the pressure bearing surface 550 abuts against the top end of the second annular wall 210 to close the water outlet passage S1. When the needle plate 500 moves from position A" to position A, the thimble 510 also moves downward through the water outlet hole 310 to remove scale or impurities. At the same time, since the elastic force of the water stop lip 312 is less than the residual water pressure P1, the water stop lip 312 deforms inward and fits with the abutting portion 511 to close the water outlet passage S3. In this way, the residual water pressure in the water distribution chamber 400 is used to automatically close the water outlet passage, so that the residual water quickly stops dripping.

[0056] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A shower head, characterized in that, include: Fixture (100); The water outlet component is located below the fixed base (100). The water outlet component is provided with a plurality of water outlet holes (310). The water outlet component is fixedly connected to the fixed base (100) and the two form a water distribution cavity (400). A needle plate (500) is movably disposed within the water distribution chamber (400). The lower surface of the needle plate (500) is provided with a plurality of ejector pins (510), and the upper end of each ejector pin (510) is provided with an abutment portion (511). The water-stopping lip (312) is an elastic annular body. The water-stopping lip (312) is located inside the water distribution cavity (400) and is arranged along the outer periphery of the water outlet (310). In the initial state, the lower part of the ejector pin (510) is inserted into the water outlet (310), and the water-stopping lip (312) surrounds the outer periphery of the ejector pin (510); In the water inlet state, the needle plate (500) moves upward to disengage the ejector pin (510) from the water outlet (310); When the water is turned off, the ejector pin (510) returns to its initial position. When the shower head is tilted, the water-stopping lip (312) can be deformed towards the ejector pin (510) by the pressure of the residual water in the water distribution chamber (400) until it presses against the abutment part (511) to block the communication between the water distribution chamber (400) and the water outlet (310).

2. The shower head according to claim 1, characterized in that, The abutting part (511) is a flange surrounding the outer peripheral wall of the upper end of the top pin (510). When the water is turned off and the shower head is tilted, the inner peripheral wall of the water-stopping lip (312) abuts against the flange.

3. The shower head according to claim 1, characterized in that, In the initial state, a space is reserved between the water-stopping lip (312) and the abutment portion (511) for the water-stopping lip (312) to deform.

4. The shower head according to claim 3, characterized in that, The lower surface of the needle plate (500) is provided with a plurality of downward-facing inner holes (521) surrounded by a first annular wall (520), and the ejector pins (510) are located one-to-one in the inner holes (521); in the initial state, the vertical distance h1 from the top wall of the inner hole (521) to the water outlet (310) is greater than the height h2 of the water-stop lip (312), the water-stop lip (312) is located in the inner hole (521), and the outer side of the water-stop lip (312) forms a clearance fit or an interference fit with the first annular wall (520); when the water is turned off and the shower head is horizontal, the pressure of the residual water in the water distribution chamber (400) is less than the elasticity of the water-stop lip (312), so that the outer side of the water-stop lip (312) maintains a clearance fit or an interference fit with the first annular wall (520).

5. The shower head according to claim 1, characterized in that, The lower surface of the needle plate (500) is provided with a plurality of limiting posts (530). In the initial state, the lower end of the limiting post (530) abuts against the water outlet component.

6. The shower head according to claim 1, characterized in that, A vertical water inlet pipe section (110) is formed on the fixed base (100). A second annular wall (210) is provided on the upper surface of the water outlet component. A guide hole (540) and a pressure-bearing surface (550) are formed on the needle plate (500). The needle plate (500) is slidably sleeved on the water inlet pipe section (110) through the guide hole (540), and the outer peripheral wall of the water inlet pipe section (110) and the inner peripheral wall of the guide hole (540) form a dynamic seal. The second annular wall (210) and the water inlet pipe section (110) form a water outlet channel. An elastic element (600) is provided between the fixed seat (100) and the needle plate (500). The elastic element (600) applies a downward elastic force to the needle plate (500). In the initial state, the pressure-bearing surface (550) abuts against the top of the second annular wall (210) so that the water inlet pipe section (110), the pressure-bearing surface (550) and the second annular wall (210) form a closed energy storage cavity.

7. The shower head according to claim 6, characterized in that, The needle plate (500) has an annular cavity (560) surrounding the guide hole (540), with the opening of the annular cavity (560) facing downwards. The pressure-bearing surface (550) is the top wall of the annular cavity (560). In the initial state, the second annular wall (210) is located in the annular cavity (560).

8. The shower head according to claim 1, characterized in that, The water outlet component includes a water outlet panel (200) and a water outlet mesh (300). The water outlet panel (200) is made of rigid material and is fixedly connected to the fixing base (100). The water outlet mesh (300) is made of silicone material. The water outlet holes (310) are formed on the water outlet mesh (300). The water outlet panel (200) is provided with a plurality of through holes. The water outlet mesh (300) is located on the inner side of the water outlet panel (200), and the water outlet holes (310) correspond one-to-one with the through holes.

9. The shower head according to claim 8, characterized in that, The water outlet net (300) and the water-stopping lip (312) are integrally formed.

10. The shower head according to claim 1, characterized in that, The upper part of the water-stopping lip (312) gradually expands outward from bottom to top to form a trumpet-shaped wide mouth.

Images