Mechanical 24-hour time switch

Abstract

This utility model discloses a mechanical 24-hour timer switch, including a base shell, a dial, and a quartz motor. The base shell contains multiple sets of gears connected to the quartz motor. The quartz motor includes a lower motor cover, an upper motor cover, a left iron core, a right iron core, and a coil. The key feature is that the upper end of the lower motor cover has an integrally formed positioning block with a first toothed groove, and the connecting arm extending from the lower side of the upper and lower motor covers has a second toothed groove. The upper and lower positioning plates on the base shell are respectively engaged with the first and second toothed grooves via protrusions. This timer, through the engagement of the toothed grooves and protrusions, accurately positions and securely fixes the quartz motor, effectively limiting motor vibration, ensuring stable gear transmission, improving timing accuracy, reducing component wear, and extending service life.

Description

Technical Field

[0001] This utility model relates to the field of timer technology, specifically a mechanical 24-hour timer switch. Background Technology

[0002] In daily life and industrial production, mechanical 24-hour timer switches are widely used in various scenarios that require timed control due to their relatively simple structure, low cost and high reliability, such as timed switching of household appliances and periodic operation control of equipment.

[0003] Existing mechanical 24-hour timer switches typically consist of a base, a dial, and a quartz motor. The base houses multiple sets of gears connected to the quartz motor, such as a first gear, second gear, third gear, fourth gear, a center gear, and a ratchet combination. The timing function is achieved through the transmission and engagement of these gears. The quartz motor, as the power source for the timer, generally comprises a lower motor cover, an upper motor cover, a left iron core, a right iron core, and a coil. The assembly precision and installation stability of these components directly affect the motor's performance and the overall lifespan of the timer.

[0004] However, current mounting structures for quartz motors within their housings often suffer from inaccurate positioning and insufficient stability. During operation, the motor's own vibration and the forces generated by gear transmission can easily cause vertical or horizontal wobbling. This wobbling not only reduces the stability of the gear transmission, producing abnormal noises or even jamming, affecting timing accuracy, but can also cause long-term wear and tear on internal motor components, shortening the timer's lifespan and failing to meet users' demands for stable operation and long-term use. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a mechanical 24-hour timer switch.

[0006] The technical solution adopted by this utility model is: a mechanical 24-hour timer switch, including a bottom shell, a dial, and a quartz motor. The bottom shell is provided with a first gear, a second gear, a third gear, a fourth gear, a central gear, and a ratchet assembly that are driven and connected to the quartz motor. The quartz motor includes a lower motor cover, a upper motor cover, a left iron core, a right iron core, and a coil. A positioning block is integrally formed on the upper end of the lower motor cover. At least two first tooth grooves are respectively provided on the upper two ends of the positioning block. Connecting arms extend from the lower sides of the upper and lower motor covers. At least two second tooth grooves are provided at the ends of the connecting arms. An upper positioning plate and a lower positioning plate are provided on the bottom shell. The upper and lower positioning plates are provided with protrusions that respectively engage with the first and second tooth grooves.

[0007] Furthermore, the cross-sections of the first tooth groove, the second tooth groove, and the convex strip are "V" shaped structures.

[0008] Furthermore, the upper positioning plate and the lower positioning plate are integrally formed with the bottom shell, and their thickness is 1-2 mm. The upper positioning plate and the lower positioning plate are inclined at 1-3° between the upper positioning plate and the lower positioning plate without external force.

[0009] Furthermore, the coil has fixing posts at both ends, and fixing holes are provided on the fixing posts.

[0010] Furthermore, a gear post is integrally formed on the upper side of the motor cover, the first gear is rotatably connected to the gear post, and the output gear of the quartz motor meshes with the first gear.

[0011] Furthermore, the left and right iron cores are disposed between the lower cover and the upper cover of the motor, and positioning holes are provided at both ends of the left and right iron cores, the lower cover and the upper cover of the motor, and positioning pins passing through the positioning holes are provided on the bottom shell.

[0012] The beneficial effects of this utility model are:

[0013] 1. Improved positioning accuracy for quartz motor installation. The positioning block integrally formed on the upper end of the motor's lower cover has a first toothed groove, and the ends of the connecting arms on the lower side of the motor's upper and lower covers have second toothed grooves. The upper and lower positioning plates on the bottom shell are respectively engaged with the first and second toothed grooves via protrusions. This structural design enables precise positioning of the motor, ensuring that the motor is in the preset installation position within the bottom shell, and avoiding component misalignment problems caused by positioning deviations during installation.

[0014] 2. Enhanced stability of quartz motor installation. The upper and lower positioning plates, through the engagement of protrusions and toothed grooves, clamp the motor housing from above and below, effectively limiting the motor's vertical and horizontal sway. This robust installation structure reduces displacement caused by the motor's own vibration and gear transmission forces during operation, ensuring the stability of motor operation.

[0015] 3. It ensures the stability of gear transmission and the timing accuracy of the timer. The motor is securely installed, avoiding poor gear meshing caused by motor vibration, reducing abnormal noise and jamming during gear transmission, and making the transmission between gears smoother. This improves the timing accuracy of the timer and ensures that it can accurately achieve the preset timing function.

[0016] 4. Extended timer lifespan. Reduced motor vibration decreases additional wear on internal motor components and gears, reducing the probability of malfunctions due to component wear. This allows the timer to maintain good performance during long-term use, extending its overall lifespan and better meeting users' needs for long-term stable timer operation.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The utility model will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the bottom shell structure.

[0021] Figure 4 This is a schematic diagram of a quartz motor.

[0022] Figure 5 This is a schematic diagram of an explosion of a quartz motor.

[0023] Figure 6 This is a schematic diagram of the structure of the lower cover of the motor.

[0024] Figure 1-6 Components: 1. Bottom shell; 2. Dial; 3. First gear; 4. Second gear; 5. Third gear; 6. Fourth gear; 7. Center gear; 8. Ratchet assembly; 9. Lower motor cover; 10. Upper motor cover; 11. Left iron core; 12. Right iron core; 13. Coil; 14. Positioning block; 15. First tooth groove; 16. Connecting arm; 17. Second tooth groove; 18. Upper positioning plate; 19. Lower positioning plate; 20. Protrusion; 21. Fixing post; 22. Fixing hole; 23. Gear post; 24. Output gear; 25. Positioning hole; 26. Positioning post. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] This utility model provides a mechanical 24-hour timer switch.

[0028] In this embodiment, refer to Figure 1-6 The mechanical 24-hour timer switch includes a base shell 1, a dial 2, and a quartz motor. The base shell contains a first gear 3, a second gear 4, a third gear 5, a fourth gear 6, a central gear 7, and a ratchet assembly 8 that are connected to the quartz motor for driving. The quartz motor includes a lower motor cover 9, an upper motor cover 10, a left iron core 11, a right iron core 12, and a coil 13. The upper end of the lower motor cover has an integrally formed positioning block 14. The upper two ends of the positioning block 14 are respectively provided with at least two first tooth grooves 15. The lower sides of the upper and lower motor covers have connecting arms 16 extending from them. The ends of the connecting arms 16 are provided with at least two second tooth grooves 17. The base shell is provided with an upper positioning plate 18 and a lower positioning plate 19. The upper and lower positioning plates are provided with protrusions 20 that respectively engage with the first and second tooth grooves.

[0029] The timer in the above technical solution includes a base shell, a dial, a quartz motor, and multiple sets of transmission gears. The upper end of the lower cover of the quartz motor has an integrally formed positioning block with at least two first toothed grooves at both ends; the connecting arm extending from the lower side of the upper and lower covers of the motor has at least two second toothed grooves at its end. The upper and lower positioning plates on the base shell engage with the first and second toothed grooves respectively via protrusions, forming a positioning structure for the quartz motor. The engagement of the toothed grooves and protrusions precisely positions the quartz motor, avoiding installation deviations; clamping the motor housing from above and below effectively limits the motor's vertical and horizontal swaying, improving motor operational stability, ensuring smooth gear transmission, reducing abnormal noise and jamming, improving timing accuracy, reducing component wear, and extending the timer's service life.

[0030] Specifically, the cross-sections of the first tooth groove, the second tooth groove, and the convex strip are "V" shaped structures.

[0031] In this embodiment, the "V"-shaped structure enhances the guiding nature of the tooth groove and the convex strip engagement, facilitating quick alignment during installation; at the same time, the inclined contact increases the friction of the mating surfaces, improving the tightness and stability of the engagement, further preventing motor wobbling, and ensuring the reliability of positioning and fixing effects.

[0032] Specifically, the upper positioning plate and the lower positioning plate are integrally formed with the bottom shell, and their thickness is 1-2 mm. The upper positioning plate and the lower positioning plate are inclined at 1-3° between the upper positioning plate and the lower positioning plate without external force.

[0033] In this embodiment, the one-piece molded structure enhances the strength of the connection between the positioning plate and the bottom shell, while the 1-2 mm thickness ensures a balance between structural rigidity and elasticity. The tilt angle when there is no external force allows the positioning plate to generate a continuous clamping force on the motor, enhancing the stability of the motor installation. Furthermore, the elastic deformation characteristics facilitate the installation and removal of the motor, while ensuring the stability of the clamping force during long-term use.

[0034] Specifically, the coil has fixing posts 21 at both ends, and fixing holes 22 are provided on the fixing posts 21.

[0035] In this embodiment, the setting of the fixing post and fixing hole realizes the reliable fixing of the coil, prevents the coil from being displaced due to vibration during motor operation, ensures the relative position stability of the coil and the iron core, ensures the stability of the electromagnetic performance of the motor, reduces motor failures caused by coil shaking, and improves the reliability of motor operation.

[0036] Specifically, a gear post 23 is integrally formed on the upper side of the motor cover, the first gear is rotatably connected to the gear post 23, and the output gear 24 of the quartz motor meshes with the first gear.

[0037] In this embodiment, a gear column is integrally formed on the motor cover, and the first gear is rotatably connected to the gear column. The output gear of the quartz motor meshes with the first gear to form a power transmission path, so that the motor power is transmitted sequentially through the first gear and subsequent gears, thereby improving output stability.

[0038] Specifically, the left iron core and the right iron core are arranged between the lower cover of the motor and the upper cover of the motor, and the left iron core, the right iron core, the lower cover of the motor and the upper cover of the motor are provided with positioning holes 25 at both ends, and the bottom shell is provided with positioning pins 26 that pass through the positioning holes 25.

[0039] In this embodiment, the left and right iron cores are located between the upper and lower covers of the motor, with positioning holes at both ends of each core. Positioning pins on the bottom shell pass through these positioning holes, forming positioning constraints on the iron cores and the motor housing, ensuring that the relative positions of each component are fixed after assembly. The cooperation between the positioning pins and the positioning holes further improves the positioning accuracy of the left and right iron cores, the upper and lower covers of the motor, and the bottom shell, preventing relative displacement of these components during motor operation or assembly. This ensures the stability of the motor's internal structure, guarantees electromagnetic conversion efficiency, reduces motor performance degradation caused by component displacement, and improves the overall reliability of the timer's operation.

[0040] Attention all technical personnel: Although this utility model has been described according to the specific embodiments above, the concept of this utility model is not limited to this utility model. Any modification that utilizes the concept of this utility model will be included within the scope of protection of this patent right.

Claims

1. A mechanical 24-hour timing switch, comprising a bottom shell, a dial plate and a quartz motor, a first gear, a second gear, a third gear, a fourth gear, a center gear and a ratchet combination are arranged in the bottom shell and are drivingly connected with the quartz motor, the quartz motor comprises a motor lower cover, a motor upper cover, a left iron core, a right iron core and a coil, characterized in that: The lower end of the motor cover is integrally formed with a positioning block, the upper side of the positioning block is provided with at least two first tooth grooves at both ends, the lower side of the motor cover and the motor lower cover extends a connecting arm, the end of the connecting arm is provided with at least two second tooth grooves, the bottom shell is provided with an upper positioning plate and a lower positioning plate, the upper positioning plate and the lower positioning plate are provided with convex strips embedded with the first tooth grooves and the second tooth grooves respectively.

2. The mechanical 24-hour time switch according to claim 1, characterized in that: The cross section of the first tooth groove, the second tooth groove and the convex strip is a "V" type structure.

3. The mechanical 24-hour time switch according to claim 1, characterized in that: The upper positioning plate and the lower positioning plate are integrally formed with the bottom shell, the thickness is 1-2mm, and the upper positioning plate and the lower positioning plate are inclined to the middle of the upper positioning plate and the lower positioning plate by 1-3° without external force.

4. The mechanical 24-hour time switch according to claim 1, characterized in that: The two ends of the coil are provided with fixing columns, and the fixing columns are provided with fixing holes.

5. The mechanical 24-hour time switch according to claim 1, characterized in that: The upper side of the motor cover is integrally formed with a gear column, the first gear is rotatably connected to the gear column, and the output gear of the quartz motor is engaged with the first gear.

6. The mechanical 24-hour time switch according to claim 1, characterized in that: The left core and the right core are arranged between the motor lower cover and the motor upper cover, and the left core, the right core, the motor lower cover and the motor upper cover are provided with positioning holes, and the bottom shell is provided with a positioning column penetrating through the positioning holes.

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