Ringing module for timer and washing machine timer thereof

Abstract

The utility model relates to a ringing module for a timer and a washing machine timer thereof. The ringing module comprises a ringing shell, a bell clapper, a ringing cam and a transmission rod, a transmission cavity is also formed in the bell shell; the ringing cam is rotatably arranged in the transmission cavity, a through hole communicated with the transmission cavity is further formed in the bottom of the ringing shell, and a main shaft of the timer can penetrate through the through hole to extend into the transmission cavity and is connected with the ringing cam; the transmission rod is arranged in the transmission cavity in a swinging mode, one end of the transmission rod is located in the transmission cavity and matched with the bell cam, and the other end of the transmission rod extends to the position above the bell shell and is connected with the bell clapper. By means of the arrangement of the ringing module, mechanical sound prompt is achieved, the overall production and maintenance cost of the timer of the washing machine is successfully reduced, the ringing module is independently arranged outside the timer body, the assembly difficulty of the timer can be reduced, and meanwhile the assembly efficiency of the timer is improved. And a timing structure in the timer is not influenced.

Description

Technical Field

[0001] This utility model relates to the field of washing machine timer products, specifically to a ringing module for a timer and a washing machine timer thereof. Background Technology

[0002] As an important component inside the washing machine, the washing machine timer is mainly used to control the forward and reverse rotation of the motor and the washing and rinsing time. Most washing timers on the market are spring-loaded, which use a spring to drive the gears to rotate and perform the timing function.

[0003] With the development of washing machine technology in recent years, the functions of washing machines on the market have become more diversified. In addition to controlling the washing direction and washing time, they also have the function of reminding users that the washing is over by emitting a sound. This function is generally achieved by adding a buzzer and setting a reed in the timer to control the buzzer's on and off.

[0004] For example, Chinese patent application CN200620103069.8 discloses: "A washing machine timer, comprising a housing and a central spindle, wherein a central wheel and a spring are mounted on the central spindle, the central wheel meshes with a transmission gear train, and the end of the transmission gear train meshes with a speed regulating mechanism without inherent escapement. One of the spindles of the transmission gear train is equipped with a first conversion cam and a second conversion cam, the first conversion cam engaging with a first conversion spring, and the second conversion cam engaging with a second conversion spring. A positioning paddle and a buzzer wheel are also mounted on the central spindle, and a timer wheel, a timer lever, and a buzzer lever are also mounted inside the housing. The beneficial effects of this utility model are: through a unique structure and a unique control method, the buzzer starts to provide a voice prompt when the power is turned on, and the timer is set to start after the washing cycle is completed and the washing machine has quieted down. The buzzer's alarm sound will not be masked by the noise generated by the washing clothes, resulting in a good alarm effect."

[0005] However, including the solutions in the aforementioned patents, existing washing machine timers with audible reminders for the end of washing all have a drawback: the timing structure inside the timer is overly complex due to the need to set up the reed to control the buzzer and the structure to control the on / off state of the reed. Moreover, the cost of implementing the sound reminder function is high because a buzzer needs to be added. Furthermore, as an electronic component, the buzzer has a short lifespan and needs to be repaired or replaced after a period of use, resulting in high maintenance costs for the existing washing machine voice reminder function. Utility Model Content

[0006] In order to overcome the shortcomings of the existing technology that relies on timers to control buzzers to realize the voice reminder function of washing machines, which has high implementation and maintenance costs, this utility model provides a ringing module for timers and a washing machine timer.

[0007] The technical solution of this utility model to solve its technical problem is: a ringing module for a timer, comprising:

[0008] A ringing housing that can be connected to the timer body, and a transmission cavity is also provided inside the ringing housing;

[0009] A bell, which is attached to the upper side of the bell casing;

[0010] A bell hammer, which is positioned below the bell;

[0011] The ringing cam is rotatably disposed in the transmission cavity. The bottom of the ringing housing is also provided with a through hole that connects to the transmission cavity. The main shaft of the timer can pass through the through hole and extend into the transmission cavity to form a connection with the ringing cam.

[0012] A transmission rod is oscillatingly disposed within a transmission cavity, with one end of the transmission rod located within the transmission cavity and engaging with a bell cam, and the other end extending above the bell housing and connected to the bell hammer.

[0013] The bell-ringing cam rotates with the main shaft of the timer body, which can drive the transmission rod to swing, thereby causing the bell hammer connected to one end of the transmission rod to move closer to or further away from the bell.

[0014] Furthermore, the side of the bell cam is recessed with a mating notch, and the end of the transmission rod located in the transmission cavity is protruded with a mating protrusion; the mating protrusion abuts against the side of the bell cam, and the rotation of the bell cam can cause the mating notch to move closer to or further away from the mating protrusion, so that the mating protrusion can engage with the mating notch or disengage from the mating notch;

[0015] When the mating protrusion engages with the mating notch, the transmission rod drives the bell hammer to move closer to the bell.

[0016] When the mating protrusion disengages from the mating notch, the transmission rod drives the bell hammer away from the bell.

[0017] Furthermore, the transmission rod includes a swing arm portion and a rotating shaft portion. The swing arm portion protrudes from the side of the rotating shaft portion, and the mating protrusion protrudes from the free end of the swing arm portion. The lower end of the rotating shaft portion is rotatably connected to the bell housing, and the upper end of the rotating shaft portion extends from the transmission cavity and connects with the bell hammer.

[0018] Furthermore, an abutment spring is provided inside the transmission cavity. An abutment protrusion is provided on the side opposite to the mating protrusion on the swing arm portion of the transmission rod. One end of the abutment spring abuts against the ringer housing, and the other end abuts against the abutment protrusion. Thus, the abutment spring can act on the swing arm portion of the transmission rod, so that the swing arm portion always has a tendency to move towards the ringer cam.

[0019] Furthermore, a bell torsion spring is provided on the bell housing. One end of the bell torsion spring is connected to the bell housing, and the other end of the bell torsion spring is connected to the bell hammer. Thus, the bell torsion spring can act on the bell hammer so that the bell hammer always has a tendency to move towards the bell.

[0020] Furthermore, the ringer housing is composed of a housing body and a cover plate connected together. The housing body is recessed with a transmission groove, and the cover plate covers the transmission groove. The transmission cavity is composed of the groove wall of the transmission groove and the lower side of the cover plate.

[0021] Furthermore, the top of the bell housing is provided with a mounting post, and the bell is fixedly connected to the top of the mounting post.

[0022] This utility model also includes a washing machine timer, which includes the above-mentioned ringing module and timer body. The timer body includes a main body shell and a timing component located inside the main body shell. The timing component includes at least a main shaft. The ringing shell is detachably connected to the main body shell. The main shaft passes through the main body shell and extends into the transmission cavity of the ringing shell.

[0023] Furthermore, the main body shell is composed of an upper shell and a lower shell connected together, and the bell shell is covered on the outside of the upper shell and connected to the upper shell.

[0024] Furthermore, the lower edge of the ringer housing is provided with a non-fake rib, and the upper edge of the lower housing is provided with a non-fake groove, with the non-fake rib engaging in the non-fake groove.

[0025] The assembly and ringing processes of this utility model:

[0026] Before installing the ringing module, the timer body should be installed first. After the entire timing assembly is installed inside the main housing, the spindle of the timing assembly extends from the main housing. When assembling the ringing module, first align the ringing housing body with the upper side of the main housing, then align the anti-fooling rib on the ringing housing body with the anti-fooling groove on the main housing. Next, place the ringing housing body over the upper housing of the main housing and secure it to the upper housing with bolts. Once the ringing housing body is fixed to the main housing, the upper end of the timing assembly's spindle will extend through the through-hole in the ringing housing body into the transmission groove. At this point, the ringing cam can be placed in the transmission groove and fitted onto the spindle. Then... The rotating shaft of the transmission rod is inserted into the transmission groove, and the mating protrusion of the swing arm on the transmission rod abuts against the side of the bell cam. The abutting spring is also installed in the transmission groove so that the abutting spring can act on the abutting protrusion of the swing arm. After all the components in the transmission groove are installed, the cover plate can be placed on top of the transmission groove and fixed to the outer shell body with bolts. Then, the bell torsion spring can be sleeved on the upper end of the rotating shaft, and the bell hammer can be connected to the upper end face of the rotating shaft with bolts. One end of the bell torsion spring is snapped onto the bell hammer, and the other end is snapped onto the cover plate. Finally, the bell is fixed to the mounting post of the cover plate with bolts to complete the assembly of the entire washing machine timer.

[0027] During the washing process, the timer of this washing machine causes the bell cam to rotate with the main shaft. The position of the notch on the bell cam is offset from the position of the protrusion on the transmission rod. The protrusion abuts against the side of the bell cam, ensuring that the transmission rod keeps the bell hammer away from the bell. When the washing process ends, the bell cam rotates one revolution, causing the notch and protrusion to align. The protrusion then engages with the notch, causing the transmission rod to move the bell hammer closer to the bell, thus striking the bell to indicate the end of the wash.

[0028] The beneficial effects of this utility model are as follows:

[0029] 1. By using the ringing module, a mechanical sound prompt is achieved, which not only successfully reduces the overall production and maintenance cost of the washing machine timer, but also places the ringing module separately outside the timer body, which reduces the assembly difficulty of the timer and does not affect the timing structure inside the timer.

[0030] 2. The internal ringing structure of the ringing module is simple and clear, which not only ensures linkage with the timing structure inside the timer body, but also effectively reduces the assembly difficulty of the ringing structure, and the size of the ringing module is also reduced.

[0031] 3. The assembly between the ringing module and the timer body is simple and effective. The ringing shell, which supports the components of the ringing module, can be placed on the outside of the upper shell of the timer body, thereby reducing the impact of the ringing module on the overall volume of the timer body and improving the overall integrity after assembly.

[0032] 4. This washing machine timer uses a combination of main body and functional modules to achieve the addition of functions. In the future, the function of this washing machine timer can also be changed by replacing the ringing module with other functional modules, without having to change the internal structure of the timer body to add functions, so that the subsequent addition of functions to this washing machine timer can be smoother. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0034] Figure 2 This is an exploded view of Embodiment 1 of this utility model.

[0035] Figure 3 This is a cross-sectional view of Embodiment 1 of this utility model.

[0036] Figure 4 This is a schematic diagram showing the change in the engagement state between the bell cam and the transmission rod in Embodiment 1 of this utility model.

[0037] Figure 5 This is a schematic diagram showing the positional changes of the bell hammer relative to the bell in Embodiment 1 of this utility model.

[0038] Figure 6 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0039] Figure 7 This is a schematic diagram showing the separation of the ringing module and the timer body in Embodiment 2 of this utility model.

[0040] Figure 8 This is an exploded view of the timer body in Embodiment 2 of this utility model.

[0041] Numbered in the diagram: 1. Bell housing; 2. Transmission cavity; 3. Bell; 4. Bell hammer; 5. Bell cam; 6. Through hole; 7. Transmission rod; 8. Fitting notch; 9. Fitting protrusion; 10. Swing rod; 11. Rotating shaft; 12. Abutting spring; 13. Abutting protrusion; 14. Bell torsion spring; 15. Housing body; 16. Cover plate; 17. Transmission groove; 18. Mounting post; 19. Main housing; 20. Timing assembly; 21. Main shaft; 22. Upper shell; 23. Lower shell; 24. Anti-foolproof rib; 25. Anti-foolproof groove; 26. Secondary shaft. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.

[0044] Example 1

[0045] Combination Figures 1 to 5 The diagram illustrates a bell module for a timer, comprising a bell housing 1, a bell hammer 4, a bell cam 5, and a transmission rod 7. The bell housing 1 is connected to the timer body, and a transmission cavity 2 is provided within the bell housing 1. A bell 3 is connected to the upper side of the bell housing 1. The bell hammer 4 is positioned below the bell 3. The bell cam 5 is rotatably disposed within the transmission cavity 2. A through hole 6 communicating with the transmission cavity 2 is provided at the bottom of the bell housing 1, through which the timer's main shaft 21 can extend into the transmission cavity 2 and connect with the bell cam 5. The transmission rod 7 is oscillatingly disposed within the transmission cavity 2, with one end of the transmission rod 7 located within the transmission cavity 2 and engaging with the bell cam 5, and the other end extending above the bell housing 1 and connecting with the bell hammer 4. The bell cam 5 rotates with the main shaft 21 of the timer body, causing the transmission rod 7 to oscillate, thereby causing the bell hammer 4, connected to one end of the transmission rod 7, to move closer to or further away from the bell 3.

[0046] Combination Figures 3 to 5 As shown, in this embodiment, the side of the bell cam 5 is recessed with a mating notch 8, and the end of the transmission rod 7 located in the transmission cavity 2 is protruded with a mating protrusion 9. The mating protrusion 9 abuts against the side of the bell cam 5. The rotation of the bell cam 5 can cause the mating notch 8 to move closer to or further away from the mating protrusion 9, so that the mating protrusion 9 can engage with or disengage from the mating notch 8. When the mating protrusion 9 engages with the mating notch 8, the transmission rod 7 drives the bell hammer 4 to move closer to the bell 3. When the mating protrusion 9 disengages from the mating notch 8, the transmission rod 7 drives the bell hammer 4 to move further away from the bell 3.

[0047] Combination Figure 2 and Figure 4As shown, in this embodiment, the transmission rod 7 includes a swing arm portion 10 and a rotating shaft portion 11. The swing arm portion 10 protrudes from the side of the rotating shaft portion 11, and the mating protrusion 9 protrudes from the free end of the swing arm portion 10. The lower end of the rotating shaft portion 11 is rotatably connected to the bell housing 1, and the upper end of the rotating shaft portion 11 extends out from the transmission cavity 2 and is connected to the bell hammer 4.

[0048] Combination Figure 2 and Figure 4 As shown, in this embodiment, an abutment spring 12 is also provided in the transmission cavity 2. An abutment protrusion 13 is provided on the side opposite to the mating protrusion 9 on the swing arm portion 10 of the transmission rod 7. One end of the abutment spring 12 abuts against the ringing shell 1, and the other end abuts against the abutment protrusion 13. Thus, the abutment spring 12 can act on the swing arm portion 10 of the transmission rod 7 so that the swing arm portion 10 always has a tendency to move towards the ringing cam 5.

[0049] Combination Figures 1 to 3 As shown, in this embodiment, a bell torsion spring 14 is also provided on the bell housing 1. One end of the bell torsion spring 14 is connected to the bell housing 1, and the other end of the bell torsion spring 14 is connected to the bell hammer 4. Thus, the bell torsion spring 14 can act on the bell hammer 4 so that the bell hammer 4 always has a tendency to move closer to the bell 3.

[0050] Combination Figure 2 and Figure 3 As shown, in this embodiment, the ringer housing 1 is composed of a housing body 15 and a cover plate 16 connected together. The housing body 15 is provided with a transmission groove 17, and the cover plate 16 covers the transmission groove 17. The transmission cavity 2 is composed of the groove wall of the transmission groove 17 and the lower side of the cover plate 16.

[0051] Combination Figures 1 to 3 As shown, in this embodiment, the top of the ringer housing 1 is also provided with a mounting post 18, and the bell 3 is fixedly connected to the top of the mounting post 18.

[0052] In this embodiment, the ringing process is as follows: The ringing cam 5 rotates with the main shaft 21. During the washing process, the position of the mating notch 8 on the ringing cam 5 is offset from the position of the mating protrusion 9 on the transmission rod 7. The mating protrusion 9 abuts against the side of the ringing cam 5, so that the transmission rod 7 drives the bell hammer 4 to always be away from the bell 3. When the washing process ends, the ringing cam 5 rotates one revolution so that the position of the mating notch 8 coincides with the position of the mating protrusion 9. The mating protrusion 9 engages with the mating notch 8, so that the transmission rod 7 drives the bell hammer 4 to move closer to the bell 3, thereby causing the bell hammer 4 to strike the bell 3 and make a sound to indicate the end of the washing process.

[0053] The advantages of this embodiment are: the entire ringing structure is set up in a modular way, independent of the timer body, which can realize the ringing reminder when the timer ends without changing the original timing structure inside the timer body, and the assembly is simple and the overall module is small in size.

[0054] Example 2

[0055] Combination Figures 6 to 8 The washing machine timer shown includes a ringing module and a timer body as described in Embodiment 1 above. The timer body includes a main body housing 19 and a timing component 20 located inside the main body housing 19. The timing component 20 includes at least a main shaft 21. The ringing housing 1 is detachably connected to the main body housing 19. The main shaft 21 passes through the main body housing 19 and extends into the transmission cavity 2 of the ringing housing 1.

[0056] Among them, such as Figure 8 As shown in the figure, in this embodiment, the main body shell 19 is composed of an upper shell 22 and a lower shell 23 connected together, and the ringing shell 1 covers the outside of the upper shell 22 and is connected to the upper shell 22.

[0057] Among them, such as Figure 7 As shown in the figure, in this embodiment, the lower edge of the ringer housing 1 is provided with a non-faulty rib 24, and the upper edge of the lower housing 23 is provided with a non-faulty groove 25. The non-faulty rib 24 is engaged with the non-faulty groove 25.

[0058] Combination Figure 7 and Figure 8 As shown, in this embodiment, the timing component 20 further includes a secondary shaft 26. The upper end of the main shaft 21 extends out from the upper side of the main housing 19 to connect with the ringing module. The lower ends of the main shaft 21 and the secondary shaft 26 extend out from the lower side of the main housing 19. The lower ends of the main shaft 21 and the secondary shaft 26 are used to connect a knob to achieve adjustment and control of the timer body.

[0059] The assembly process of this embodiment is as follows: Before installing the ringing module, the timer body can be installed first. After the entire timing component 20 is assembled inside the main body housing 19, the main shaft 21 of the timing component 20 extends out from the main body housing 19. When assembling the ringing module, first align the outer shell body 15 of the ringing housing 1 with the upper side of the main body housing 19, then align the anti-foolproof rib 24 on the outer shell body 15 with the anti-foolproof groove 25 on the main body housing 19, and then cover the outer shell body 15 onto the upper shell 22 of the main body housing 19. Next, use bolts to fix the outer shell body 15 and the upper shell 22 together. After the outer shell body 15 is fixed to the main body housing 19, the upper end of the main shaft 21 of the timing component 20 will extend into the transmission groove 17 through the through hole 6 on the outer shell body 15. At this time, the ringing cam 5 can be placed in the transmission groove 17 and sleeved on the main shaft. Next, insert the rotating shaft 11 of the transmission rod 7 into the transmission groove 17, and make the mating protrusion 9 of the swing arm 10 on the transmission rod 7 abut against the side of the ringing cam 5. Also, install the abutting spring 12 into the transmission groove 17 so that the abutting spring 12 can act on the abutting protrusion 13 of the swing arm 10. After all the components in the transmission groove 17 are installed, the cover plate 16 can be placed on top of the transmission groove 17 and fixed to the outer shell body 15 with bolts. Then, the ringing torsion spring 14 can be sleeved on the upper end of the rotating shaft 11, and the bell hammer 4 can be connected to the upper end face of the rotating shaft 11 with bolts. One end of the ringing torsion spring 14 is snapped onto the bell hammer 4, and the other end is snapped onto the cover plate 16. Finally, the bell 3 is fixed to the mounting post 18 of the cover plate 16 with bolts to complete the assembly of the washing machine timer.

[0060] The advantages of this embodiment are as follows: as a washing machine timer, the original buzzer reminder mode is changed to a ringing reminder, which can effectively save the setting cost of the timer structure and the subsequent maintenance cost. Furthermore, the ringing structure is set by combining the main body and the module. In the future, the ringing module can also be replaced with other modules to change the function of this washing machine timer, thus laying the foundation for increasing the functionality of this washing machine timer.

[0061] The remaining structures, methods, and advantages of this embodiment are consistent with those of Embodiment 1 above, and will not be repeated here.

[0062] The above specific embodiments are merely explanations of the present utility model and are not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to the embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.

Claims

1. A ringer module for a timer, characterized by Including: A ringing housing (1) is connected to the timer body, and a transmission cavity (2) is also provided inside the ringing housing (1); A bell (3) is attached to the upper side of the bell casing (1); A bell hammer (4) is disposed below the bell (3); The ringing cam (5) is rotatably disposed in the transmission cavity (2). The bottom of the ringing housing (1) is also provided with a through hole (6) that connects to the transmission cavity (2). The main shaft (21) of the timer can pass through the through hole (6) and extend into the transmission cavity (2) and form a connection with the ringing cam (5). A transmission rod (7) is oscillatingly disposed in the transmission cavity (2), and one end of the transmission rod (7) is located in the transmission cavity (2) and forms a cooperation with the bell cam (5), while the other end extends to the top of the bell housing (1) and is connected to the bell hammer (4); The bell cam (5) rotates with the main shaft (21) of the timer body, which can drive the transmission rod (7) to swing, thereby causing the bell hammer (4) connected to one end of the transmission rod (7) to move closer to or further away from the bell (3).

2. A ringer module for a timer according to claim 1, wherein: The side of the bell cam (5) is recessed with a mating notch (8), and the end of the transmission rod (7) located in the transmission cavity (2) is protruded with a mating protrusion (9); the mating protrusion (9) abuts against the side of the bell cam (5), and the rotation of the bell cam (5) can make the mating notch (8) move closer to or further away from the mating protrusion (9), so that the mating protrusion (9) can be engaged into the mating notch (8) or disengaged from the mating notch (8); When the mating protrusion (9) engages with the mating notch (8), the transmission rod (7) drives the bell hammer (4) to move closer to the bell (3); When the mating protrusion (9) disengages from the mating notch (8), the transmission rod (7) drives the bell hammer (4) away from the bell (3).

3. A ringer module for a timer according to claim 2, wherein: The transmission rod (7) includes a swing arm part (10) and a rotating shaft part (11). The swing arm part (10) protrudes from the side of the rotating shaft part (11), and the mating protrusion (9) protrudes from the free end of the swing arm part (10). The lower end of the rotating shaft part (11) is rotatably connected to the bell housing (1), and the upper end of the rotating shaft part (11) extends out from the transmission cavity (2) and connects with the bell hammer (4).

4. A ringer module for a timer according to claim 3, wherein: The transmission cavity (2) is also provided with an abutment spring (12). The rocker arm part (10) of the transmission rod (7) is provided with an abutment protrusion (13) on the side opposite to the mating protrusion (9). One end of the abutment spring (12) abuts against the ringing shell (1), and the other end abuts against the abutment protrusion (13). Thus, the abutment spring (12) can act on the rocker arm part (10) of the transmission rod (7) so that the rocker arm part (10) always has a tendency to move towards the ringing cam (5).

5. A ringer module for a timer according to claim 1, wherein: The bell housing (1) is also provided with a bell torsion spring (14). One end of the bell torsion spring (14) is connected to the bell housing (1), and the other end of the bell torsion spring (14) is connected to the bell hammer (4). Thus, the bell torsion spring (14) can act on the bell hammer (4) so ​​that the bell hammer (4) always has a tendency to move closer to the bell (3).

6. A ringer module for a timer according to claim 2, wherein: The ringer housing (1) is composed of a housing body (15) and a cover plate (16). The housing body (15) is recessed with a transmission groove (17). The cover plate (16) covers the transmission groove (17). The transmission cavity (2) is composed of the groove wall of the transmission groove (17) and the lower side of the cover plate (16).

7. A ringer module for a timer according to claim 1, wherein: The top of the bell housing (1) is also provided with a mounting post (18), and the bell (3) is fixedly connected to the top of the mounting post (18).

8. A washing machine timer, characterised by: The device includes a ringing module and a timer body as described in any one of claims 1-7. The timer body includes a main housing (19) and a timing component (20) located inside the main housing (19). The timing component (20) includes at least a spindle (21). The ringing housing (1) is detachably connected to the main housing (19). The spindle (21) passes through the main housing (19) and extends into the transmission cavity (2) of the ringing housing (1).

9. A washing machine timer according to claim 8, wherein: The main body shell (19) is composed of an upper shell (22) and a lower shell (23) connected together, and the bell shell (1) is covered on the outside of the upper shell (22) and connected to the upper shell (22).

10. A washing machine timer according to claim 9, wherein: The lower edge of the ringer housing (1) is provided with a non-fake rib (24), and the upper edge of the lower housing (23) is provided with a non-fake groove (25). The non-fake rib (24) is engaged with the non-fake groove (25).

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