Two-hour timer movement with noise reduction function

Abstract

The utility model relates to the technical field of timer movement, in particular to a two-hour timer movement with a noise reduction function, which comprises a rear clamping plate. A transition wheel and a PCB are arranged in the rear clamping plate, and a contact assembly is further arranged in the rear clamping plate. The contact assembly comprises a center wheel assembly, a limiting piece, a limiting nail, a limiting block, an alarm spring and an alarm column, and when the timer is started, the driving piece drives the gear transmission assembly to enable a center wheel shaft to rotate. And the poke rod moves to push the alarm spring to deform and contact with the alarm column so as to generate a trigger signal. And the signal is transmitted to the PCB and is output to the peripheral circuit, and meanwhile, the timer stops working. When the center wheel assembly is in normal timing, the center wheel shaft and the center wheel sheet rotate cooperatively. Under the action of external force, friction is generated between the center wheel shaft and the center wheel sheet, the center wheel shaft continues to rotate, and the center wheel sheet is static. Using is convenient, various ringtones can be selected, travel time errors are small, and noise is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to timer movement technical field, concretely relates to a 2 hours timer movement with reduce noise function. BACKGROUND

[0002] Mechanical movement is a kind of automatic winding device, it utilizes the movement of wearer's arm to provide power for watch and other devices, and is suitable for various timers. At present, most timers adopt complicated mechanical spring type, and the operation is inconvenient, the duration of bell sound is limited, the set time limit is short, and the mechanical noise generated during operation is large, and there is a large time error.

[0003] Chinese patent authorized announcement No. CN217213447U discloses a quartz clock type timer movement, which comprises a gear box, a sound emitting component and an integrated circuit. The gear box comprises a center wheel shaft, a motor coil and a clamping plate, the top of the clamping plate is provided with a PCB board, and the integrated circuit is arranged on the PCB board. The clamping plate is provided with a positioning device for fixing the PCB board, and the PCB board is fixedly connected with the clamping plate. It also comprises a switch spring and a pushing device for forcing the switch spring to bend, and the switch spring is connected with the integrated circuit. It also comprises a swing block swingably positioned on the clamping plate, a swing block limiting device arranged on the clamping plate and a pushing block arranged on the center wheel shaft. The motor coil of the movement is electrically connected with the PCB board. The battery is arranged on the side surface of the gear box, and it also comprises a positive plate and a negative plate directly connected with the PCB board. The utility model reduces the number of parts, reduces the difficulty of processing and assembly, and reduces the cost.

[0004] In the above-mentioned device, during the operation of the movement, some components (such as gears, balance wheels, etc.) inside the movement will rub and collide with each other, thereby generating noise. These noises may be relatively significant in a quiet environment, especially when the mechanical watch is just wound (such as the state of fully tightened spring) or in some specific positions (such as some extreme inclination angles), which may cause discomfort to the wearer's use experience, and for occasions that require continuous timing for several hours, such as cooking, meetings, learning, etc., a 2-hour timer is more convenient, so a 2-hour timer movement with noise reduction function is needed. UTILITY MODEL CONTENTS

[0005] To address the above issues, a two-hour timer movement with a noise reduction function is provided. A drive member drives the gear transmission assembly, rotating the center wheel shaft. This action activates the toggle lever, pushing the alarm spring to deform and contact the alarm post, generating a trigger signal. This signal is transmitted to the PCB and output to the peripheral circuitry, while the timer stops. During normal timing, the center wheel assembly rotates in unison with the center wheel shaft and center wheel disc. However, external forces create friction between the center wheel shaft and center wheel disc, causing the center wheel shaft to continue rotating while the center wheel disc remains stationary. A limit block drives the timing limit disc to rotate, which is limited by the limit pins on the front plate to ensure that the timing reaches the preset maximum time. The gear transmission assembly transmits power at a specific transmission ratio, causing the center wheel disc to rotate once every two hours. This allows for ease of use, a variety of ringing tone options, minimal timekeeping errors, and reduced noise.

[0006] In order to solve the problems of the existing technology, the utility model provides a 2-hour timer movement with a noise reduction function, comprising a rear plate; a transition wheel and a PCB board are arranged inside the rear plate; a contact assembly is also arranged inside the rear plate; the contact assembly includes a center wheel assembly, a limit plate, a limit pin, a limit block, an alarm spring and an alarm column; the center wheel assembly includes a center wheel shaft; a center wheel piece is arranged on the top of the center wheel shaft; and a toggle lever is arranged on the outside of the center wheel shaft.

[0007] Preferably, a middle splint is provided on the top of the central wheel shaft; and a front splint is clamped on the top of the rear splint.

[0008] Preferably, the alarm spring and the alarm column are fixedly arranged on the PCB board assembly; and the limiting piece is located between the front clamping plate and the PCB board.

[0009] Preferably, a driving member is provided on the top of the middle clamping plate; the driving member includes a rotor and a driving wheel provided on the top of the rotor.

[0010] Preferably, a gear transmission assembly is provided between the front plate and the driving member.

[0011] Preferably, the gear transmission assembly includes a first gear, a second gear, a third gear and a second gear; the first gear is meshed and connected with the driving wheel; the second gear is meshed and connected with the first gear; the third gear is meshed and connected with the second gear; and the second gear is meshed and connected with the third gear.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] When the timer is activated, the driver drives the gear assembly, rotating the center wheel shaft. This activates the toggle lever, deforming the alarm spring and bringing it into contact with the alarm post, generating a trigger signal. This signal is transmitted to the PCB and output to the peripheral circuitry, simultaneously stopping the timer. During normal timing, the center wheel assembly rotates in unison with the center wheel shaft and center wheel disc. However, external forces create friction between the center wheel shaft and center wheel disc, causing the center wheel shaft to continue rotating while the center wheel disc remains stationary. A stop block pushes the timing stop disc, which is restrained by the stop pins on the front plate, ensuring that the preset maximum time is reached. The gear assembly transmits power at a specific ratio, causing the center wheel disc to rotate once every two hours. This ensures ease of use, a variety of chime sound options, minimal timekeeping errors, and reduced noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the explosion structure of the movement in a 2-hour timer movement with a noise reduction function.

[0015] Figure 2 The diagram is a schematic diagram of the structure of the gear transmission assembly in a 2-hour timer movement with a noise reduction function.

[0016] Figure 3 The diagram is a structural diagram of the center wheel shaft and center wheel piece in a 2-hour timer movement with a noise reduction function.

[0017] Figure 4 The present invention is a structural diagram of an alarm spring and an alarm column in a 2-hour timer movement with a noise reduction function.

[0018] Figure 5 The present invention is a schematic diagram of the structure of the timing zero reset in a 2-hour timer movement with a noise reduction function.

[0019] Figure 6 The present invention is a structural diagram of a maximum start position of a timer in a 2-hour timer movement with a noise reduction function.

[0020] The numbers in the figure are: 1. Center wheel shaft; 102. Limiting plate; 103. Alarm spring; 104. Alarm column; 105. Transition wheel; 106. Toggle lever; 107. Limiting block; 108. Limiting pin; 2. Center wheel; 201. PCB board; 3. Front splint; 4. Middle splint; 5. Rear splint; 6. Gear transmission assembly; 601. First gear; 602. Second gear; 603. Third gear; 604. Second gear; 7. Driving member; 701. Rotor; 702. Driving wheel. DETAILED DESCRIPTION

[0021] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figures 1 to 6 As shown, the utility model provides:

[0023] A 2-hour timer movement with a noise reduction function includes a rear plate 5; a transition wheel 105 and a PCB board 201 are disposed inside the rear plate 5; a contact assembly is also disposed inside the rear plate 5; the contact assembly includes a center wheel assembly, a limit plate 102, a limit pin 108, a limit block 107, an alarm spring 103, and an alarm column 104; the center wheel assembly includes a center wheel shaft 1; a center wheel piece 2 is disposed on the top of the center wheel shaft 1; and a toggle lever 106 is disposed outside the center wheel shaft 1.

[0024] By moving lever 106, the alarm spring 103 is deformed accordingly. As the alarm spring 103 gradually deforms, it eventually contacts the alarm post 104, generating a trigger signal. This trigger signal is then transmitted to PCB board 201 and output to the peripheral circuitry, making the movement extremely convenient to use and offering a richer user experience with a variety of ringtone options. Furthermore, the movement's low error ensures accurate timekeeping. Furthermore, the noise generated by the movement during operation is effectively reduced, making the entire user environment quieter and more comfortable.

[0025] like Figure 1 As shown, a middle plate 4 is provided on the top of the central wheel shaft 1; and a front plate 3 is clamped on the top of the rear plate 5.

[0026] The middle plate 4, the rear plate 5 and the front plate 3 can be combined into a movement box.

[0027] like Figure 4 As shown, the alarm spring 103 and the alarm column 104 are fixedly arranged on the PCB board 201 component; the limiting piece 102 is located between the front clamping plate 3 and the PCB board 201.

[0028] Through the rotation of the center wheel shaft 1 and the center wheel piece 2. However, when the center wheel shaft 1 is subjected to external force, friction will be generated between the center wheel shaft 1 and the center wheel piece 2.

[0029] like Figure 2 As shown, a driving member 7 is provided on the top of the middle plate 4 ; the driving member 7 includes a rotor 701 and a driving wheel 702 provided on the top of the rotor 701 .

[0030] The driving member 7 is used to work, and the gear transmission assembly 6 is driven to enter the working state. The operation of the gear transmission assembly 6 further drives the central wheel shaft 1 to start rotating.

[0031] like Figure 1 and Figure 2 As shown, a gear transmission assembly 6 is provided between the front plate 3 and the driving member 7 .

[0032] The energy is transmitted step by step through the first gear 601 , the second gear 602 , and the third gear 603 and converted into potential energy, thereby driving the second gear 604 to rotate.

[0033] like Figure 2 As shown, the above-mentioned gear transmission assembly 6 includes a first gear 601, a second gear 602, a third gear 603 and a second gear 604; the first gear 601 is meshed and connected with the driving wheel 702; the second gear 602 is meshed and connected with the first gear 601; the third gear 603 is meshed and connected with the second gear 602; and the second gear 604 is meshed and connected with the third gear 603.

[0034] Power is transmitted to the center gear 2 and transition gear 105 via the gear transmission assembly 6 according to a specific transmission ratio. Gears with more teeth rotate slower, while gears with fewer teeth rotate faster. The speed of the driven gear can be calculated using the driving gear speed and the transmission ratio. Since speed is directly related to rotation time, rotation time can also be calculated based on speed. For a five-gear transmission system, the transmission ratio between each pair of adjacent gears must be calculated sequentially and multiplied to obtain the total transmission ratio for the entire system. Based on the required rotation time and the total transmission ratio, the speed of the driving gear can be inferred, ensuring that the center gear 2 rotates once every two hours.

[0035] Working Principle: When the timer is activated, the driver 7 begins to function, simultaneously driving the gear transmission assembly 6 into operation. The operation of the gear transmission assembly 6 further drives the center shaft 1 to begin rotating. Simultaneously, the toggle lever 106 on the center shaft 1 also begins to move, causing the alarm spring 103 to deform. As the alarm spring 103 deforms, it eventually contacts the alarm post 104, generating a trigger signal. This trigger signal is then transmitted to the PCB 201, from where it is output to the peripheral circuitry. During this process, the timer stops timing. Under normal circumstances, during normal timing, the center shaft 1 and center wheel 2 rotate in unison. However, when the center shaft 1 is subjected to external force, friction occurs between them. In this situation, the center shaft 1 continues to rotate, while the center wheel 2 remains stationary. As the external force continues, the stopper 107 on the center shaft 1 pushes the timing stopper 102 to begin rotating. The rotation of the timing stopper 102 is restricted by a stopper pin 108 on the front plate 3, thus limiting the rotation of the center wheel shaft 1 and ensuring that the timing reaches the preset maximum time limit. Furthermore, the gear transmission assembly 6 transmits power to the center wheel 2 and the transition wheel 105 according to a specific transmission ratio, ensuring that the center wheel 2 rotates once every two hours. This makes the movement extremely convenient to use, allows for a variety of external ringing options, minimizes timekeeping errors, and reduces the noise generated during movement operation.

[0036] The above embodiments merely illustrate one or several embodiments of a two-hour timer movement with a noise reduction function according to the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and improvements are within the scope of the present invention, as would be apparent to those skilled in the art. These variations and improvements fall within the scope of the present invention. Therefore, the scope of the present invention shall be determined by the appended claims.

[0037] In the present invention, unless otherwise clearly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly specified and limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to specific circumstances.

Claims

1. A 2-hour timer movement with noise reduction function, characterized in that: The invention comprises a rear splint (5), wherein a transition wheel (105) and a PCB board (201) are arranged inside the rear splint (5), and a contact assembly is also arranged inside the rear splint (5), wherein the contact assembly comprises a center wheel assembly, a limit plate (102), a limit pin (108), a limit block (107), an alarm spring (103) and an alarm column (104), wherein the center wheel assembly comprises a center wheel shaft (1), a center wheel piece (2) is arranged on the top of the center wheel shaft (1), and a toggle rod (106) is arranged outside the center wheel shaft (1).

2. A 2-hour timer movement with noise reduction function according to claim 1, characterized in that: A middle splint (4) is provided on the top of the central wheel shaft (1), and a front splint (3) is clamped on the top of the rear splint (5).

3. A 2-hour timer movement with noise reduction function according to claim 1, characterized in that: The alarm spring (103) and the alarm column (104) are fixedly arranged on the PCB board (201) component, and the limiting piece (102) is located between the front clamping plate (3) and the PCB board (201).

4. A 2-hour timer movement with noise reduction function according to claim 2, characterized in that: A driving member (7) is provided on the top of the middle clamping plate (4), and the driving member (7) comprises a rotor (701) and a driving wheel (702) provided on the top of the rotor (701).

5. A 2-hour timer movement with noise reduction function according to claim 2, characterized in that: A gear transmission assembly (6) is provided between the front clamping plate (3) and the driving member (7).

6. A 2-hour timer movement with noise reduction function according to claim 5, characterized in that: The gear transmission assembly (6) comprises a first gear (601), a second gear (602), a third gear (603) and a second gear (604); the first gear (601) is meshed and connected with the driving wheel (702); the second gear (602) is meshed and connected with the first gear (601); the third gear (603) is meshed and connected with the second gear (602); and the second gear (604) is meshed and connected with the third gear (603).

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