Mechanical doorbell with double-path knocking frequency

Abstract

The utility model discloses a mechanical doorbell with double-path knocking frequency, which comprises a protection mechanism, a driving mechanism and a ringing mechanism, the protection mechanism comprises a shell, a shell cover and a driving mechanism, the shell cover and the driving mechanism are buckled with the shell, and the driving mechanism comprises a plurality of limiting plates connected with the rear side wall of an inner cavity of the shell. According to the utility model, when a take-out person or a courier is identified, the movable end of the micro electric push rod is kept in a contraction state, so that the swing track of the knocking hammer corresponds to the metal sheet group with smaller spacing on the upper layer; when a relative and friend mode is recognized, the movable end of the micro electric push rod automatically extends, the knocking range is switched to the lower layer metal sheet group with the large interval, the knocking hammer forms differentiated swing amplitude and knocking frequency in different modes through the preset differentiated interval of the upper and lower metal sheets, and finally the 3-5 Hz variable acoustic feedback effect is achieved. Various living environments are flexibly adapted, and the use comfort of the product is improved.

Description

A mechanical doorbell with dual striking frequencies Technical Field

[0001] This utility model relates to the field of mechanical doorbell technology, specifically a mechanical doorbell with dual striking frequencies. Background Technology

[0002] Doorbells were relatively uncommon in ancient times. Wealthy households typically installed decorative door knockers on their gates. People would strike the door studs beneath the knocker to produce a loud sound, serving a similar function to a modern door. Doorbells sometimes appear in period films, often depicting wealthy households with large bronze handles hanging from their doors. Coachmen would pull on these handles to ring the bell when dropping off guests.

[0003] Traditional mechanical doorbells produce a very monotonous sound because the striking frequency cannot be adjusted. The sound consists of short, high-frequency continuous knocks and long, low-frequency intermittent knocks. This type of doorbell alert sound is difficult to adapt to various life scenarios. For example, the high-frequency mode is suitable for scenarios that require a quick response, such as delivery or takeout, while the low-frequency mode is suitable for scenarios that require a gentle alert, such as when relatives or friends visit. Summary of the Invention

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] A mechanical doorbell with dual striking frequencies includes a protection mechanism, a drive mechanism, and a ringing mechanism. The protection mechanism includes a housing and a cover that snaps onto the housing. The drive mechanism includes multiple limiting plates connected to the rear side wall of the inner cavity of the housing, a turntable movably installed between the multiple limiting plates, two undulating plates installed on both sides of the turntable, two magnetic pieces 1 near the outer end of the undulating plates and installed at the top and bottom of the undulating plates, two magnetic pieces 2 that are magnetically repelled by the magnetic pieces 1, and a pull cord connected to the undulating plate near the right side of the housing. The magnetic pieces 2 are connected to the limiting plates. The ringing mechanism includes a miniature electric push rod installed at the bottom of the turntable, a hammer connected to the movable end of the miniature electric push rod, and multiple metal pieces located on both sides of the hammer and connected to the rear side wall of the inner cavity of the housing.

[0007] By adopting the above technical solution, when the device is identified as a delivery person or courier, the movable end of the miniature electric push rod remains retracted, so that the swing trajectory of the hammer corresponds to the upper metal plate group with smaller spacing. When the device is identified as a friend or relative, the movable end of the miniature electric push rod automatically extends, switching the striking range to the lower metal plate group with larger spacing. Through the preset differential spacing between the upper and lower metal plates, the hammer forms a differential swing amplitude and striking frequency in different modes, ultimately achieving a variable acoustic feedback effect of 3-5Hz, flexibly adapting to various living environments and improving the comfort of using this product.

[0008] In a preferred embodiment, the present invention can be further configured as follows: multiple limiting plates are arranged in pairs, forming two groups, with the two groups of limiting plates being vertically symmetrical about the micro electric push rod, and the two limiting plates in each group being respectively located at the top and bottom of the wave plate.

[0009] In a preferred embodiment, the present invention can be further configured such that a gap is formed between the two limiting plates in each group, and the outer end of the undulating plate extends into the gap.

[0010] In a preferred embodiment, the present invention can be further configured such that the bottom end of the pull rope extends through the bottom of the outer casing, and a rubber sleeve is fitted onto the bottom end of the pull rope.

[0011] In a preferred embodiment, the present invention can be further configured such that both sides of the shell cover are curved.

[0012] In a preferred embodiment, the present invention can be further configured as follows: multiple metal sheets are arranged in pairs, forming two groups, with the two metal sheets in each group arranged in a figure-eight shape.

[0013] In a preferred embodiment, the present invention can be further configured such that the distance between the two metal plates near the bottom of the inner cavity of the outer casing is greater than the distance between the two metal plates far from the bottom of the inner cavity of the outer casing.

[0014] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0015] In this invention, when the device is identified as a delivery person or courier, the movable end of the miniature electric push rod remains retracted, causing the swing trajectory of the hammer to correspond to the upper metal plate group with smaller spacing. When the device is identified as a friend or relative, the movable end of the miniature electric push rod automatically extends, switching the striking range to the lower metal plate group with larger spacing. Through the preset differential spacing between the upper and lower metal plates, the hammer forms different swing amplitudes and striking frequencies in different modes, ultimately achieving a variable acoustic feedback effect of 3-5Hz, flexibly adapting to various living environments and improving the comfort of using this product. Attached Figure Description

[0016] Figure 1 is a perspective view of the overall structure of this utility model;

[0017] Figure 2 is a schematic diagram of the protection mechanism of this utility model;

[0018] Figure 3 is a schematic diagram of the internal structure of the outer shell of this utility model;

[0019] Figure 4 is an enlarged view of part A of the present invention as shown in Figure 3;

[0020] Figure 5 is an enlarged view of part B of Figure 3 of this utility model.

[0021] Figure label:

[0022] 100. Protective mechanism; 110. Outer shell; 120. Shell cover;

[0023] 200. Drive mechanism; 210. Limit plate; 220. Turntable; 230. Wave plate; 240. Magnetic sheet one; 250. Magnetic sheet two; 260. Pull rope;

[0024] 300. Ringing mechanism; 310. Miniature electric actuator; 320. Hammer; 330. Metal sheet;

[0025] 400. Rubber sleeve;

[0026] 500, curved surface. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of this invention.

[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a mechanical doorbell with dual striking frequencies.

[0030] Example 1:

[0031] As shown in Figures 1-5, the present invention provides a mechanical doorbell with dual-path striking frequency, including a protection mechanism 100, a drive mechanism 200 and a ringing mechanism 300. The protection mechanism 100 includes a housing 110 and a cover 120 that is fastened to the housing 110.

[0032] The driving mechanism 200 includes multiple limiting plates 210 connected to the rear side wall of the inner cavity of the outer shell 110, a turntable 220 movably installed between the multiple limiting plates 210, two undulating plates 230 installed on both sides of the turntable 220, two magnetic sheets 240 near the outer end of the undulating plates 230 and installed on the top and bottom of the undulating plates 230, a magnetic sheet 250 that is magnetically repelled by the magnetic sheets 240, and a pull rope 260 connected to the undulating plate 230 near the right side of the outer shell 110. The magnetic sheet 250 is connected to the limiting plates 210.

[0033] The ringing mechanism 300 includes a miniature electric push rod 310 installed at the bottom of the turntable 220, a hammer 320 connected to the movable end of the miniature electric push rod 310, and a plurality of metal plates 330 disposed on both sides of the hammer 320 and connected to the rear side wall of the inner cavity of the outer casing 110.

[0034] Furthermore, multiple limiting plates 210 are arranged in pairs, forming two groups. The two groups of limiting plates 210 are vertically symmetrical about the micro electric push rod 310. The two limiting plates 210 in each group are respectively located at the top and bottom of the wave plate 230. The layout design of the limiting plates 210 allows the turntable 220 to rotate flexibly.

[0035] Furthermore, a gap is formed between the two limiting plates 210 in each group, and the outer end of the oscillating plate 230 extends into the gap. The gap is set to ensure that the oscillating plate 230 can swing up and down smoothly.

[0036] Furthermore, multiple metal pieces 330 are arranged in pairs, forming two groups. The two metal pieces 330 in each group are arranged in a figure-eight shape. The layout design of the metal pieces 330 provides conditions for flexibly switching between high-frequency and low-frequency tapping.

[0037] Furthermore, the distance between the two metal plates 330 near the bottom of the inner cavity of the outer casing 110 is greater than the distance between the two metal plates 330 far from the bottom of the inner cavity of the outer casing 110. With this layout design, the frequency of the hammer 320 can be adjusted.

[0038] Example 2:

[0039] As shown in Figures 1 and 3, based on Embodiment 1, the bottom end of the pull cord 260 extends through the bottom of the outer shell 110. A rubber sleeve 400 is fitted onto the bottom end of the pull cord 260. The rubber sleeve 400 is provided to facilitate the user in pulling the pull cord 260 and to prevent the pull cord 260 from retracting into the outer shell 110.

[0040] Example 3:

[0041] As shown in Figure 2, in the above embodiment, both sides of the cover 120 are provided with arc surfaces 500. The arc surfaces 500 facilitate technicians to disassemble the cover 120 and inspect the components inside the outer shell 110.

[0042] The working principle and usage process of this utility model are as follows: When the device is working, pulling the pull rope 260 drives the oscillating plate 230, which is hinged to it, to swing. At this time, the magnetic plates 240 and 250 fixed at both ends of the oscillating plate are magnetically coupled, pushing the turntable 220 to rotate alternately in the forward and reverse directions. The reciprocating motion of the turntable 220 synchronously drives the miniature electric push rod 310 to rotate around the axis. At this time, the system automatically switches the working mode according to the user's identity: when the user is identified as a deliveryman or courier, the movable end of the miniature electric push rod 310 remains in a retracted state, so that the swing trajectory of the hammer 320 corresponds to the upper metal plate group 330 with a smaller spacing; when the user is identified as a friend or relative, the movable end of the miniature electric push rod 310 automatically extends, switching the striking range to the lower metal plate group 330 with a larger spacing. By using the preset differential spacing between the upper and lower sets of metal plates 330, the hammer 320 can form different swing amplitudes and striking frequencies in different modes, ultimately achieving a variable acoustic feedback effect of 3-5Hz, flexibly adapting to various living environments and improving the comfort of using this product.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A mechanical doorbell with dual striking frequencies, characterized in that, include: The protective mechanism (100) includes a housing (110) and a cover (120) that is fastened to the housing (110); the driving mechanism (200) includes a plurality of limiting plates (210) connected to the rear side wall of the inner cavity of the housing (110), a turntable (220) movably installed between the plurality of limiting plates (210), two undulating plates (230) installed on both sides of the turntable (220), and two magnetic plates (240) near the outer end of the undulating plates (230) and installed on the top and bottom of the undulating plates (230). A magnetic sheet two (250) that is magnetically repelled by the magnetic sheet one (240), a pull rope (260) connected to the wave plate (230) near the right side of the outer shell (110), the magnetic sheet two (250) being connected to the limiting plate (210); a ringing mechanism (300), the ringing mechanism (300) including a miniature electric push rod (310) installed at the bottom of the turntable (220), a hammer (320) connected to the movable end of the miniature electric push rod (310), and a plurality of metal plates (330) disposed on both sides of the hammer (320) and connected to the rear side wall of the inner cavity of the outer shell (110).

2. A mechanical doorbell with dual-path striking frequency according to claim 1, characterized in that, Multiple limiting plates (210) are arranged in pairs, forming two groups. The two groups of limiting plates (210) are vertically symmetrical about the micro electric push rod (310). The two limiting plates (210) in each group are respectively located at the top and bottom of the wave plate (230).

3. A mechanical doorbell with dual-path striking frequency according to claim 1, characterized in that, A gap is formed between the two limiting plates (210) in each group, and the outer end of the wave plate (230) extends into the gap.

4. A mechanical doorbell with dual-path striking frequency according to claim 1, characterized in that, The bottom end of the pull rope (260) extends through the bottom of the outer shell (110), and a rubber sleeve (400) is fitted onto the bottom end of the pull rope (260).

5. A mechanical doorbell with dual-path striking frequency according to claim 1, characterized in that, Both sides of the shell cover (120) are provided with arc surfaces (500).

6. A mechanical doorbell with dual-path striking frequency according to claim 1, characterized in that, Multiple metal pieces (330) are arranged in pairs, forming two groups, with the two metal pieces (330) in each group arranged in a figure-eight shape.

7. A mechanical doorbell with dual-path striking frequency according to claim 1, characterized in that, The distance between the two metal plates (330) near the bottom of the inner cavity of the outer shell (110) is greater than the distance between the two metal plates (330) far from the bottom of the inner cavity of the outer shell (110).

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