A showerhead capable of switching between enhanced and non-enhanced water spray

Abstract

The invention discloses a shower capable of switching reinforced and non-reinforced water spray, comprising a water passage, a plurality of water outlets penetrating the water passage, a reinforcing disc arranged in the water passage, and a concave-convex rotating wheel movably connected with the reinforcing disc, wherein the reinforcing disc is provided with a plurality of pricking needles corresponding to the water outlets, the concave-convex rotating wheel penetrates the water passage and is connected with a switching assembly, the switching assembly is controlled to drive the concave-convex rotating wheel to drive the reinforcing disc to move up and down, so that the pricking needles move up and down in the water outlets, thereby changing the water passing area of the water outlets, ensuring that the water pressure of the water outlets is reinforced or reduced under the condition of constant water pressure, and the water spray is reinforced or normal; meanwhile, under the condition of reduced water pressure, the water spray impact force can be ensured by changing the water passing area, and the showering comfort of the user is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bathroom products, in particular to a shower head capable of switching between enhanced and non-enhanced water flow. BACKGROUND

[0002] There are many types of existing shower heads, especially various types of water flow, which can meet the various shower use needs of users. However, when the water pressure is unstable, the originally comfortable shower water flow is not so comfortable, and water pressure instability often occurs in kitchen and bathroom products such as shower heads and faucets, so there is a need for a shower head that can enhance the impact force of the water flow under low water pressure. Although the water outlet device for enhancing the impact force of the water flow (publication number CN206549864 U) of the Chinese invention patent can enhance the impact force of the water flow, it adjusts the size of the water outlet channel by setting water outlet channels of different sizes and using a rotating water distribution piece to adjust the size of the water outlet channel to adjust the impact force of the water outlet. Such a structure obviously uses more parts, and the mold used is increased, so the mold cost and part cost are correspondingly increased, and the structure is complex and cumbersome, with poor stability. Moreover, the water outlet is not provided with a self-cleaning function, and the water outlet is at risk of being blocked. SUMMARY

[0003] The present application provides a shower head capable of switching between enhanced and non-enhanced water flow to solve the above problems.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0005] A shower head capable of switching between enhanced and non-enhanced water flow, comprising a water passage cavity and a plurality of water outlet holes in communication with the water passage cavity, an enhancement disc is arranged in the water passage cavity, and a concave-convex rotating wheel is movably connected with the enhancement disc, the enhancement disc is provided with a plurality of thorn needles corresponding to the water outlet holes, the concave-convex rotating wheel penetrates the water passage cavity to connect a switching assembly, the switching assembly is controlled to drive the concave-convex rotating wheel to drive the enhancement disc to move up and down, so that the thorn needles move up and down in the water outlet holes, thereby switching the water flow of the water outlet holes between the enhanced water outlet state and the non-enhanced water outlet state.

[0006] Preferably, an annular concave-convex tooth disc is arranged on the end face of the enhancement disc away from the water outlet holes, the concave-convex tooth disc corresponds to the concave-convex rotating wheel and rotates relatively.

[0007] Preferably, a plurality of first concave teeth and first convex teeth are arranged annularly on the concave-convex tooth disc, and the first concave teeth and the first convex teeth are arranged adjacently in sequence; second concave teeth and second convex teeth corresponding to the first concave teeth and the first convex teeth are arranged on the end face of the concave-convex rotating wheel close to the side of the reinforcing disc; when the concave-convex rotating wheel and the reinforcing disc rotate relative to each other, the positions of the first concave teeth and the first convex teeth corresponding to the second concave teeth and the second convex teeth change.

[0008] Preferably, the shower body is provided with the water passage cavity, the accommodating cavity arranged apart from the water passage cavity, and the partition wall arranged between the water passage cavity and the accommodating cavity; the water outlet end of the water passage cavity is covered with a water outlet panel; the water outlet holes are uniformly distributed on the water outlet panel; and the switching assembly is arranged in the accommodating cavity and penetrates through the partition wall to be connected with the concave-convex rotating wheel.

[0009] Preferably, the concave-convex rotating wheel is provided with a rotating shaft penetrating through both sides of the concave-convex rotating wheel; a first spring is sleeved on the side of the rotating shaft close to the water outlet panel and abuts against the water outlet panel; and a positioning portion is arranged on the side of the rotating shaft away from the water outlet panel, penetrates through the partition wall, and is arranged in the accommodating cavity and connected with the switching assembly.

[0010] Preferably, a rotating hole corresponding to the rotating shaft is arranged on the water outlet panel; a plurality of grooves are arranged on the hole wall of the rotating hole; and a clamping convex portion corresponding to the grooves is arranged on the end face of the reinforcing disc close to the water outlet panel, and the clamping convex portion is clamped in the grooves.

[0011] Preferably, the switching assembly comprises a ratchet wheel connected with the concave-convex rotating wheel, a driving hook arranged below the ratchet wheel, a transmission connecting rod arranged on the side of the driving hook away from the ratchet wheel, and a button connected with the end of the transmission connecting rod away from the driving hook; the button penetrates through the side surface of the shower body; and the button is controlled to drive the transmission connecting rod to drive the driving hook to rotate the ratchet wheel, so that the ratchet wheel drives the concave-convex rotating wheel to rotate.

[0012] Preferably, a positioning step is arranged on the lower end face of the accommodating cavity and protrudes upward; a protrusion is arranged on the positioning step away from the water inlet end of the shower body; a positioning ring is arranged on the driving hook and provided with a groove corresponding to the protrusion; the positioning ring is sleeved on the positioning step, the protrusion is accommodated in the groove, and the driving hook is fixedly connected with the accommodating cavity.

[0013] Preferably, a positioning hole is formed in the positioning step and penetrates the upper and lower end faces, the rotating shaft penetrates the positioning hole and extends through the positioning ring and beyond the upper surface of the positioning ring, and the ratchet wheel is arranged on the upper surface of the positioning ring and connected with the rotating shaft.

[0014] Preferably, the driving hook further has a driving part movably connected to the positioning ring near the water inlet end of the shower body, the driving part has a cam connected with the positioning ring and a driving pawl arranged on the side of the cam near the positioning ring, and the driving pawl is arranged on the circumference of the positioning ring; the circumference of the ratchet wheel is uniformly provided with a plurality of ratchet teeth, and when the driving hook drives the ratchet wheel to rotate, the driving pawl pulls the adjacent ratchet teeth to make the ratchet wheel rotate.

[0015] Preferably, a limiting step is protruded upward from the lower end face of the accommodating cavity away from the side of the driving pawl, the limiting step is provided with a lateral slot, and a rotatable anti-reverse hook is arranged in the slot.

[0016] Preferably, two groups of fixed ribs are protruded upward from the lower end face of the accommodating cavity near the side of the driving pawl, the transmission connecting rod is movably clamped on the fixed ribs, the transmission connecting rod has a clamping part and a sliding part connected with the clamping part, the cam is movably arranged in the sliding part, and the clamping part slides between the two groups of fixed ribs to drive the cam to move and make the driving pawl pull the ratchet wheel to rotate.

[0017] Preferably, an open placing groove is formed in the side wall of the shower body, the button is movably inserted into and outside the placing groove and abuts against and connects with the transmission connecting rod, and a second spring is arranged between the bottom of the placing groove and the inner surface of the button.

[0018] The present application has the following beneficial effects:

[0019] 1. By arranging the reinforcing disc and the concave-convex rotating wheel in the water passage and arranging the needle corresponding to the water outlet hole on the reinforcing disc, the up-and-down movement of the needle in the water outlet hole is realized by the relative rotation of the reinforcing disc and the concave-convex rotating wheel, so that the water area of the water outlet hole is reduced or increased, the water pressure of the water outlet hole is increased or reduced to strengthen or weaken the water spray under the condition of constant water pressure, and the water spray impact force is ensured to ensure the showering comfort of the user under the condition of reduced water pressure.

[0020] 2. By allowing the needle to move up and down in the water outlet hole, the needle can push and top the water scale and stains in the water outlet hole, realizing the self-cleaning function of the shower and ensuring that each use of the shower can be in a clean and healthy state. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0022] Figure 1 An isometric view of a showerhead of the present application that can switch between enhanced and non-enhanced water spray.

[0023] Figure 2 An isometric view of a showerhead of the present application that can switch between enhanced and non-enhanced water spray.

[0024] Figure 3 A cross-sectional view of a showerhead of the present application that can switch between enhanced and non-enhanced water spray. Figure 1 .

[0025] Figure 4 A cross-sectional view of a showerhead of the present application that can switch between enhanced and non-enhanced water spray. Figure 2 .

[0026] Figure 5 A cross-sectional view of a showerhead of the present application that can switch between enhanced and non-enhanced water spray. Figure 3 .

[0027] Reference Signs List:

[0028] 1 - showerhead body;

[0029] 2 - water passing assembly; 21 - concave-convex rotating wheel; 22 - enhanced disc; 221 - concave-convex tooth disc; 222 - thorn needle; 23 - first spring;

[0030] 3 - water outlet panel; 31 - water outlet hole;

[0031] 4 - switching assembly; 41 - anti-reverse pulling hook; 42 - ratchet wheel; 43 - driving pulling hook; 44 - transmission connecting rod; 45 - second spring; 46 - button;

[0032] 5 - showerhead upper cover. DETAILED DESCRIPTION

[0033] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly, specifically and clearly, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0034] Reference Figures 1 to 5As shown, a preferred embodiment of the showerhead capable of switching between enhanced and non-enhanced water spray in the present application comprises a showerhead body 1, a water outlet panel 3 covering the lower end of the showerhead body 1, and a showerhead upper cover 5 covering the upper end of the showerhead body 1. The showerhead body 1 has a water passage, and a water inlet end and a water outlet end penetrating the water passage. A water passing assembly 2 is arranged on the side of the water passage close to the water outlet end. A switching assembly 4 is connected to the water passing assembly 2. The switching assembly 4 penetrates the outer surface of the showerhead body 1, so that the user can control the switching assembly 4 from the outer surface of the showerhead body 1 to switch the water passing of the water passing assembly 2. The water flow then flows from the water passing assembly 2 to the water outlet panel 3 and out of use.

[0035] The end surface of the showerhead body 1 opposite to the water outlet end is concave downward to form a containing cavity. The switching assembly 4 penetrates the containing cavity.

[0036] The water passing assembly 2 comprises an enhanced disc 22 and a concave-convex rotating wheel 21 arranged on the side of the enhanced disc 22 close to the switching assembly 4. The rotating shaft of the concave-convex rotating wheel 21 penetrates the enhanced disc 22 and is close to the water outlet panel 3. A first spring 23 is sleeved on the rotating shaft of the concave-convex rotating wheel 21 and abuts against the water outlet panel 3.

[0037] A plurality of water outlet holes 31 and rotating holes corresponding to the rotating shaft are formed on the water outlet panel 3. The water outlet holes 31 are arranged in the rotating hole circle. The end surface of the enhanced disc 22 close to the water outlet panel 3 is convex to form a plurality of pricking needles 222 corresponding to the water outlet holes 31. Controlling the switching assembly 4 can make the pricking needles 222 move up and down in the water outlet holes 31. Two opposite grooves are formed on the hole wall of the rotating hole. The end surface of the enhanced disc 22 close to the water outlet panel 3 is convex to form a plurality of clamping protrusions corresponding to the grooves. The clamping protrusions are clamped in the grooves to make the enhanced disc 22 and the water outlet panel 3 unable to move circumferentially.

[0038] A concave-convex tooth disc 221 is annularly arranged on the end surface of the enhanced disc 22 away from the water outlet panel 3. A plurality of first concave teeth and first convex teeth are annularly arranged on the concave-convex tooth disc 221. The first concave teeth and the first convex teeth are sequentially and adjacently arranged. A plurality of second concave teeth and second convex teeth corresponding to the first concave teeth and the first convex teeth are arranged on the end surface of the concave-convex rotating wheel 21 close to the enhanced disc 22. When the concave-convex rotating wheel 21 and the enhanced disc 22 relatively rotate, the positions corresponding to the first concave teeth and the first convex teeth and the second concave teeth and the second convex teeth change. A plurality of through water passing holes are formed on the enhanced disc 22. The water flow flows from the water passage to the water passing holes and then to the water outlet holes 31.

[0039] The rotation shaft of the concave-convex rotating wheel 21 penetrates the central axis of the concave-convex rotating wheel 21 and is provided with opposite positioning portions at the end away from the water outlet panel 3. The rotation shaft at the end away from the water outlet panel 3 penetrates the lower end surface of the accommodating cavity to extend out of the accommodating cavity. The positioning portions are arranged in the accommodating cavity and connected with the switching assembly 4.

[0040] The switching assembly 4 comprises a ratchet wheel 42 connected with the water passing assembly 2, a driving pull hook 43 arranged below the ratchet wheel 42, an anti-reverse pull hook 41 arranged away from the driving pull hook 43, a transmission connecting rod 44 arranged away from the driving pull hook 43 and the ratchet wheel 42, and a button 46 connected with the end of the transmission connecting rod 44 away from the driving pull hook 43. The button 46 penetrates the side surface of the shower body 1. By operating the button 46, the transmission connecting rod 44 drives the driving pull hook 43 to pull the ratchet wheel 42 to rotate, so that the ratchet wheel 42 drives the water passing assembly 2 to rotate, thereby realizing the switching of the water flow of the water passing assembly 2 between the enhanced state and the non-enhanced state.

[0041] The middle part of the lower end surface of the accommodating cavity is upwardly provided with a positioning step. A positioning hole penetrating the upper and lower end surfaces is arranged on the positioning step. A protrusion is arranged on the positioning step away from the water inlet end. The rotation shaft penetrates the positioning hole. The driving pull hook 43 is provided with a positioning ring and a driving part movably connected to the positioning ring near the water inlet end. The height of the driving part is higher than the height of the positioning ring. A groove corresponding to the protrusion is arranged on the positioning ring. The positioning ring is sleeved on the positioning step, the protrusion is accommodated in the groove, and the driving pull hook 43 is fixedly connected to the accommodating cavity.

[0042] The driving part is provided with a cam connected with the positioning ring and a driving pull tooth arranged on the side of the cam close to the positioning ring. The driving pull tooth is arranged on the circumference of the positioning ring. The rotation shaft penetrates the positioning ring and extends out of the upper surface of the positioning ring. The ratchet wheel 42 is arranged on the upper surface of the positioning ring and connected with the rotation shaft.

[0043] The middle part of the ratchet wheel 42 is provided with a positioning groove corresponding to the positioning portion. A plurality of ratchet teeth are uniformly arranged on the circumference of the ratchet wheel 42. When the ratchet wheel 42 rotates, any ratchet tooth is arranged corresponding to the driving pull tooth.

[0044] The lower end face of the accommodating cavity is upwardly protruded with a limiting step away from the driving gullet side, the limiting step is provided with a lateral slot, the anti-reverse hook 41 is rotatably positioned in the lateral slot, when the driving gullet drives the ratchet wheel 42 to rotate, the driving gullet pulls the ratchet tooth, the ratchet tooth close to the anti-reverse hook 41 is not rotated by the anti-reverse hook 41, thereby ensuring that the ratchet wheel 42 can only rotate one ratchet tooth stroke each time.

[0045] The transmission connecting rod 44 has a clamping part and a sliding part connected with the clamping part, the cam is movably arranged in the sliding part; the lower end face of the accommodating cavity is upwardly protruded with two groups of fixed ribs which are arranged at intervals close to the driving gullet side, the clamping part is slid between the two groups of fixed ribs to drive the cam to move, so that the driving gullet drives the ratchet wheel 42 to rotate.

[0046] An open placing groove is formed in the side wall of the shower body 1, the button 46 is movably inserted in and out of the placing groove and abuts against the transmission connecting rod 44; the second spring 45 is arranged between the bottom of the placing groove and the inner surface of the button 46, the button 46 is pressed by hand to drive the transmission connecting rod 44 to move, and the second spring 45 is compressed at the same time, the button 46 is not pressed by hand, and the elastic force of the second spring 45 makes the button 46 reset.

[0047] The working principle of the present application is briefly described as follows:

[0048] Pressing the button 46 once, the button 46 drives the transmission connecting rod 44 to move towards the side close to the second spring 45, the clamping part slides from the fixed rib on the side away from the second spring 45 to the fixed rib on the side close to the second spring 45, and the sliding part drives the cam to drive the driving drag to pull the ratchet of the ratchet wheel 42 close to the driving drag, so that the ratchet wheel 42 rotates, and the ratchet wheel 42 drives the convex-concave rotating wheel 21 to rotate by the same angle, so that the second concave teeth and the second convex teeth of the convex-concave rotating wheel 21 are staggered by the same angle from the first concave teeth and the first convex teeth of the convex-concave tooth disc 221, so that the second concave teeth correspond to the first concave teeth and the first convex teeth alternately, and the second convex teeth correspond to the first convex teeth and the first concave teeth alternately, so that the convex-concave rotating wheel 21 rises or falls on the tooth surface of the reinforcing disc 22, so that the reinforcing disc 22 appears to be away from or close to the convex-concave rotating wheel 21, and then the needle 222 is close to or away from the end surface of the water outlet hole 31, so that the water spray state changes from the non-reinforced water outlet mode (ordinary water outlet mode) to the reinforced water outlet mode or from the reinforced water outlet mode to the non-reinforced water outlet mode. When the water pressure is too low, we can switch to the reinforced water outlet mode, or when the water pressure is too high, we can switch from the reinforced water outlet mode to the ordinary water outlet mode to meet our shower comfort.

[0049] The present application sets the reinforcing disc 22 and the convex-concave rotating wheel 21 in the water passage, and sets the needle 222 corresponding to the water outlet hole 31 on the reinforcing disc 22, and realizes the up and down movement of the needle 222 in the water outlet hole 31 through the relative rotation of the reinforcing disc 22 and the convex-concave rotating wheel 21, so that the water area of the water outlet hole 31 becomes smaller or larger, and ensures that the water pressure of the water outlet hole 31 is reinforced or reduced under the condition of certain water pressure, so that the water spray is reinforced or tends to be ordinary; at the same time, it also ensures that the water spray impact force can be ensured through the reduction of the water area under the condition of reduced water pressure, and ensures the shower comfort of the user; through the up and down movement of the needle 222 in the water outlet hole 31, the needle 222 can push and top the scale and stains in the water outlet hole 31, and realize the self-cleaning function of the shower, so that each use of the shower can be in a clean and healthy state.

[0050] The above description shows and describes the preferred embodiments of the present application, as described above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the inventive concept described herein through the above teaching or related technical or knowledge. The modifications and changes made by those skilled in the art without departing from the spirit and scope of the present application shall be within the scope of protection of the appended claims of the present application.

Claims

1. A shower head capable of switching between enhanced and non-enhanced water spray, comprising a water passage cavity and a plurality of water outlet holes penetrating through the water passage cavity, characterized in that, The water through cavity is provided with an enhancement disc and a concave-convex rotating wheel movably connected with the enhancement disc, the enhancement disc is provided with a plurality of pricking needles corresponding to the water outlet holes, the concave-convex rotating wheel penetrates the water through cavity and is connected with a switching assembly, the switching assembly is controlled to drive the concave-convex rotating wheel to drive the enhancement disc to move up and down, so that the pricking needles move up and down in the water outlet holes, thereby switching the water spray of the water outlet holes between the enhanced water outlet state and the non-enhanced water outlet state. The shower head body is provided with the water through cavity, the accommodating cavity arranged in the water through cavity, and the partition wall arranged between the water through cavity and the accommodating cavity, the water outlet end cover of the water through cavity is connected with a water outlet panel, the water outlet holes are uniformly distributed on the water outlet panel, the switching assembly is arranged in the accommodating cavity and penetrates the partition wall to be connected with the concave-convex rotating wheel. The switching assembly includes a ratchet wheel connected with the concave-convex rotating wheel, a driving hook arranged below the ratchet wheel, a transmission connecting rod arranged on the side away from the ratchet wheel of the driving hook, and a button connected with the end of the transmission connecting rod away from the driving hook, the button penetrates the side surface of the shower head body, the button is controlled to drive the transmission connecting rod to drive the driving hook to pull the ratchet wheel to rotate, so that the ratchet wheel drives the concave-convex rotating wheel to rotate. The concave-convex rotating wheel has a rotating shaft, the rotating shaft penetrates the two sides of the concave-convex rotating wheel, a first spring is sleeved on the side of the rotating shaft close to the water outlet panel, and the first spring abuts against the water outlet panel; the side of the rotating shaft away from the water outlet panel is provided with a positioning portion, the positioning portion penetrates the partition wall to be arranged in the accommodating cavity and connected with the switching assembly. The lower end surface of the accommodating cavity is provided with a positioning step, the driving hook has a positioning ring, and the positioning ring is sleeved on the positioning step. A positioning hole penetrating the upper and lower end surfaces is formed in the positioning step, the rotating shaft penetrates out of the positioning hole and penetrates the positioning ring and extends out of the upper surface of the positioning ring, the ratchet wheel is arranged on the upper surface of the positioning ring and connected with the rotating shaft. The driving hook is provided with a driving hook tooth, and the driving hook tooth is arranged on the circumference of the positioning ring; a plurality of ratchet teeth are uniformly arranged on the circumference of the ratchet wheel, and when the driving hook drives the ratchet wheel to rotate, the driving hook tooth pulls the ratchet tooth close to it to make the ratchet wheel rotate.

2. The switchable enhanced and non-enhanced water bloom showerhead of claim 1, wherein, The end surface of the enhancement disc away from the water outlet holes is annularly provided with a concave-convex tooth disc, the concave-convex tooth disc corresponds to the concave-convex rotating wheel and rotates relatively.

3. The switchable enhanced and non-enhanced water bloom showerhead of claim 2, wherein, A plurality of first concave teeth and first convex teeth are annularly arranged on the concave-convex tooth disc, and the first concave teeth and the first convex teeth are arranged in sequence; the end surface of the concave-convex rotating wheel close to the enhancement disc is provided with second concave teeth and second convex teeth corresponding to the first concave teeth and the first convex teeth, and when the concave-convex rotating wheel and the enhancement disc rotate relatively, the positions corresponding to the first concave teeth and the first convex teeth and the second concave teeth and the second convex teeth change.

4. The switchable enhanced and non-enhanced water flow generating showerhead of claim 1, wherein, The water outlet panel is provided with a rotating hole corresponding to the rotating shaft, a plurality of slots are formed in the hole wall of the rotating hole, and a clamping protrusion corresponding to the slots is protruded on the end face of the reinforcing disc close to the water outlet panel.

5. The switchable enhanced and non-enhanced water bloom showerhead of claim 1, wherein, The positioning step is protruded with a protrusion away from the water inlet end of the shower body, and a groove corresponding to the protrusion is formed in the positioning ring; the protrusion is accommodated in the groove, and the driving hook is fixedly connected to the accommodating cavity.

6. The switchable enhanced and non-enhanced water flow generating showerhead of claim 1, wherein, The driving hook further has a driving part movably connected to the positioning ring close to the water inlet end of the shower body, the driving part has a cam connected to the positioning ring, and the driving pawl is arranged on the side of the cam close to the positioning ring.

7. The switchable enhanced and non-enhanced water bloom showerhead of claim 6, wherein, The lower end face of the accommodating cavity is protruded with a limiting step upward away from the driving pawl, the limiting step is formed with a lateral slot, and a rotatable anti-reverse hook is arranged in the slot.

8. The switchable enhanced and non-enhanced water bloom showerhead of claim 6, wherein, The lower end face of the accommodating cavity is protruded with two groups of fixed ribs arranged at intervals upward close to the driving pawl, and the transmission connecting rod is movably clamped on the fixed ribs; the transmission connecting rod has a clamping part and a sliding part connected to the clamping part, the cam is movably arranged in the sliding part, and the clamping part slides between the two groups of fixed ribs to drive the cam to move, so that the driving pawl drives the ratchet wheel to rotate.

9. The switchable enhanced and non-enhanced water bloom showerhead of claim 8, wherein, An open placing groove is formed in the side wall of the shower body, the button is movably inserted into and outside the placing groove and abuts against and connects the transmission connecting rod, and a second spring is arranged between the bottom of the placing groove and the inner surface of the button.

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