Self-cleaning structure and shower head

Abstract

The present invention relates to a self-cleaning structure and a shower head, comprising a water inlet, a driving component, a descaling needle plate and a water outlet surface cover. A water outlet hole is opened on the surface of the water outlet surface cover, and descaling needles are arranged on the surface of the descaling needle plate. When the driving component drives the descaling needle plate to move back and forth, each descaling needle penetrates the water outlet hole on the water outlet surface cover, effectively solving the problems of scale accumulation and impurities blocking the water outlet hole. When turning water on and off, the descaling needle plate reciprocates once, which is more than twice as effective as a conventional descaling shower head. When the water is turned off, the descaling needle plate and the water outlet surface cover are in an open state, which can prevent residual water of the automatic descaling shower head from accumulating in the shower head cavity. The driving component adopts a push rod cam mechanism for braking. The friction of this mechanism is small, which can solve the failure and jamming of the descaling mechanism under low water pressure, and can effectively improve the product yield and production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen and bath equipment, and in particular to a self-cleaning structure and a shower head. Background Art

[0002] Showers are essential equipment for our daily showers. After long-term use or in places with poor water quality, especially in northern regions, the water outlet holes on the water outlet cover are easily clogged by scale or impurities, resulting in problems such as oblique spray, thin water flow, and insufficient spray force, affecting the shower experience. Showers with descaling functions on the market today have shortcomings such as inconvenient operation, low conduction efficiency, and complex assembly, which lead to corresponding limitations in their use and need further improvement. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art and provide a self-cleaning structure and a shower head.

[0004] The present invention is achieved through the following technical solutions:

[0005] A self-cleaning structure, characterized in that it includes a water inlet end, a driving component arranged at the water inlet end, a descaling needle plate connected to the driving component, and a water outlet surface cover adapted to the descaling needle plate, the surface of the water outlet surface cover is provided with a plurality of water outlet holes, the surface of the descaling needle plate is provided with a plurality of descaling needles at positions relative to the water outlet holes, the driving component drives the descaling needle plate to reciprocate, and during the reciprocating motion of the descaling needle plate, each of the descaling needles penetrates the water outlet hole on the water outlet surface cover.

[0006] According to the above technical solution, preferably, a supporting spring is provided between the water outlet surface cover and the descaling needle plate.

[0007] According to the above technical solution, preferably, the two ends of the support spring are respectively fixedly connected to the middle part of the descaling needle plate and the middle part of the water outlet surface cover.

[0008] According to the above technical solution, preferably, the driving assembly comprises a cam rotatably connected between the water inlet end and the descaling needle plate and a transmission member for driving the cam, and the cam abuts against the descaling needle plate.

[0009] According to the above technical solution, preferably, a first connecting ear is provided on the water outlet cover, and the cam is rotatably connected to the first connecting ear of the water outlet cover.

[0010] According to the above technical solution, preferably, the transmission member includes a piston, a push rod and a return spring, a return spring is provided between the piston and the descaling needle plate, the piston is hinged to one end of the push rod, and the other end of the push rod is hinged to the eccentric position of the cam.

[0011] This patent also discloses a shower head, including the above-mentioned self-cleaning structure, characterized in that the water inlet end includes a main body and a water sealing cover plate installed on the main body, and the water outlet surface cover is connected to the main body.

[0012] According to the above technical solution, preferably, a ball head assembly is provided at the end of the body, and the ball head assembly includes a ball head, a clamping nut, a C-shaped ring provided between the ball head and the body, and a sealing ring.

[0013] The beneficial effects of the present invention are:

[0014] First, the present invention effectively solves the problem of scale accumulation and impurities blocking the water outlet hole by reciprocating the descaling needle in the water outlet hole;

[0015] Second, the descaling needle plate reciprocates once each time the water is turned on or off, which is more than twice as effective as conventional descaling shower heads.

[0016] Third, when the water is turned off, the descaling needle is away from the water outlet, so that the descaling needle plate and the water outlet cover are open, which can effectively solve the problems of water stains caused by the accumulation of residual water in the shower cavity of the automatic descaling shower, which is difficult to remove, breeds bacteria, and causes noise due to long-term dripping;

[0017] Fourth, the push rod cam mechanism is used for braking. This mechanism has low friction and can solve the failure and jamming of the descaling mechanism under low water pressure, which can effectively improve the product yield and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic exploded view of the three-dimensional structure of the present invention.

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the driving component part of the present invention.

[0020] Figure 3 It is a schematic exploded view of the three-dimensional structure of the drive assembly part of the present invention.

[0021] Figure 4 It is a schematic diagram of the self-cleaning principle of the present invention.

[0022] Figure 5 It is a main structural cross-sectional view of the self-cleaning structure part of the present invention.

[0023] Figure 6 It is a main structural cross-sectional view of the present invention in the initial state.

[0024] Figure 7 It is a main structural cross-sectional view of the present invention in the self-cleaning (descaling) state.

[0025] Figure 8 It is a main structural cross-sectional view of the present invention in the water outlet state.

[0026] In the figure: 1. ball head; 2. locking nut; 3. C-shaped ring; 4. sealing ring; 5. ball head assembly; 6. body; 7. water sealing cover plate; 8. piston; 9. retaining ring; 10. driving assembly; 11. pin; 12. cam; 13. push rod; 14. reset spring; 15. descaling needle plate; 16. descaling needle; 17. supporting spring; 18. first connecting ear; 19. water outlet hole; 20. water outlet surface cover; 21. rotating shaft. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and the best embodiments.

[0028] As shown in the figure, the present invention includes a water inlet end, a driving component 10 arranged at the water inlet end, a descaling needle plate 15 connected to the driving component 10, and a water outlet surface cover 20 adapted to the descaling needle plate 15. The surface of the water outlet surface cover 20 is provided with a plurality of water outlet holes 19. The surface of the descaling needle plate 15 is provided with a plurality of descaling needles 16 at positions relative to each water outlet hole 19. The driving component 10 drives the descaling needle plate 15 to reciprocate. During the reciprocating motion of the descaling needle plate 15, each of the descaling needles penetrates the water outlet hole 19 on the water outlet surface cover 20. A supporting spring 17 is provided between the water outlet cover 20 and the descaling needle plate 15. The two ends of the supporting spring 17 are respectively fixed to the middle of the descaling needle plate 15 and the middle of the water outlet surface cover 20.

[0029] According to the above embodiment, preferably, the driving assembly 10 includes a cam 12 rotatably connected between the water inlet end and the descaling needle plate 15 and a transmission member for driving the cam 12, the cam 12 abuts against the descaling needle plate 15, wherein a first connecting ear 18 is provided on the water outlet cover 20, a rotating shaft 21 is provided on one side of the cam 12, and the cam 12 is installed at the first connecting ear 18 of the water outlet cover 20 through the rotating shaft 21. The transmission member includes a piston 8, a push rod 13 and a return spring 14. A return spring 14 is provided between the piston 8 and the descaling needle plate 15. The piston 8 is hinged to one end of the push rod 13, and the other end of the push rod 13 is hinged to the eccentric position of the cam 12. A second connecting ear is provided below the piston 8. One end of the push rod 13 is connected to the second connecting ear through a pin 11 and a snap ring 9, so that the piston 8 is hinged to one end of the push rod 13, and the other end of the push rod 13 is connected to the eccentric position of the cam 12 through a pin 11 and a snap ring 9, so that the piston 8 is hinged to the eccentric position of the cam 12. In this example, the push rod 13 cam 12 mechanism is used for braking. This mechanism has low friction, can solve the failure and jamming of the descaling mechanism under low water pressure, and can effectively improve the product yield and production efficiency.

[0030] The specific working process of the present invention is as follows: wherein, the elastic force of the support spring 17 is F1, and the force of the reset spring 14 is F2. In the initial state, the descaling needle plate 15 is subjected to the force F2 of the reset spring 14 to abut against the cam 12 upward, and the protrusion of the cam 12 forms a certain angle, which is 45° in this example; when the water pressure value F at the water inlet end is greater than (F1+F2) [the spring force (F1+F2) is less than 4.9N], the piston 8 moves downward and pushes the cam 12 to rotate 45 degrees in the clockwise direction through the push rod 13. When the protrusion on the cam 12 contacts the upper end surface of the descaling needle plate 15, the descaling needle on the descaling needle plate 15 is prompted to move downward to penetrate the water outlet hole 19 on the water outlet cover 20, thereby achieving the action of desilting and unblocking the water outlet hole 19; the piston 8 is under the action of the water flow. Continue to move downward, and the push rod 13 still pushes the cam 12 to rotate 90 degrees in the clockwise direction. When the protrusion on the cam 12 deviates from the upper end surface of the descaling needle plate 15, the descaling needle plate 15 is reset under the action of the elastic force F1 of the support spring 17, and water flows out of the water outlet 19 on the water outlet cover 20; after turning off the water, when the water pressure value F=0, the piston 8 is reset to the initial state under the action of the elastic force F2 of the reset spring 14, and the descaling needle plate 15 is reset to the initial state under the action of the elastic force F1 of the support spring 17. In the recovery process, the cam 12 once again pushes the descaling needle plate 15 to complete the action of desilting and unblocking the water outlet 19. With the switching cycle of the water flow, the cycle of the self-cleaning structure "initial state---self-cleaning action---water outlet state" is completed, thereby realizing the function of top spray self-cleaning.

[0031] This patent also discloses a shower head, including the above-mentioned self-cleaning structure, characterized in that the water inlet end includes a body 6 and a water sealing cover plate 7 installed on the body 6, and the water outlet cover 20 is connected to the body 6. A ball head assembly 5 is provided at the end of the body 6, and the ball head assembly 5 includes a ball head 1, a clamping nut 2, a C-shaped ring 3 provided between the ball head and the body 6, and a sealing ring 4. The self-cleaning mechanism of this patent is mainly used in overhead shower heads. This self-cleaning mechanism can effectively solve the many consumer pain points such as the accumulation of scale in the shower water storage cavity and the clogging of the water outlet 19 by impurities, causing bacterial growth, oblique water spray, and short product life.

[0032] The present invention has the following beneficial effects: first, the present invention effectively solves the problem of scale accumulation and impurities blocking the water outlet hole 19 by reciprocating the descaling needle in the water outlet hole 19; second, the descaling needle plate 15 reciprocates once each time the water is turned on and off, which is more than twice as effective as the conventional descaling shower head; third, the descaling needle is away from the water outlet hole 19 in the water-off state, so that the descaling needle plate 15 and the water outlet surface cover 20 are in an open state, which can effectively solve the problems of water stains caused by the accumulation of residual water in the shower cavity of the automatic descaling shower head, the breeding of bacteria, and the noise caused by long-term dripping; fourth, the push rod cam mechanism is used for braking, and the friction of this mechanism is small, which can solve the failure and jamming of the descaling mechanism under low water pressure, and can effectively improve the product yield and production efficiency.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A self-cleaning structure, characterized in that: The water outlet cover comprises a water inlet end, a driving assembly arranged at the water inlet end, a descaling needle plate connected to the driving assembly, and a water outlet surface cover adapted to the descaling needle plate, the surface of the water outlet surface cover is provided with a plurality of water outlet holes, the surface of the descaling needle plate is provided with a plurality of descaling needles at positions relative to the respective water outlet holes, the driving assembly drives the descaling needle plate to reciprocate, and during the reciprocating motion of the descaling needle plate, each of the descaling needles penetrates the water outlet hole on the water outlet surface cover, the driving assembly comprises a cam rotatably connected between the water inlet end and the descaling needle plate and a transmission member for driving the cam, the cam abuts against the descaling needle plate, a first connecting ear is provided on the water outlet surface cover, the cam is rotatably connected to the first connecting ear of the water outlet surface cover, the transmission member comprises a piston, a push rod and a reset spring, a reset spring is provided between the piston and the descaling needle plate, the piston is hinged to one end of the push rod, and the other end of the push rod is hinged to the eccentric position of the cam.

2. A self-cleaning structure according to claim 1, characterized in that: A supporting spring is arranged between the water outlet surface cover and the descaling needle plate.

3. A self-cleaning structure according to claim 2, characterized in that: The two ends of the support spring are respectively fixedly connected to the middle part of the descaling needle plate and the middle part of the water outlet cover.

4. A shower head, comprising a self-cleaning structure as claimed in claim 1, characterized in that: The water inlet end comprises a body and a water sealing cover plate installed on the body, and the water outlet surface cover is connected to the body.

5. A shower head according to claim 4, characterized in that: A ball head assembly is provided at the end of the body, and the ball head assembly comprises a ball head, a compression nut, a C-shaped ring arranged between the ball head and the body, and a sealing ring.

Images