Swinging driving assembly of metronome, swinging device and metronome

Abstract

The utility model discloses a metronome swing driving assembly, a swing device and a metronome, the metronome swing driving assembly comprises a driving shaft, two rotating discs and a gear column which are integrally formed, the metronome swing driving assembly further comprises two driving needles, the gear column, the two rotating discs and the driving shaft clamped between the two rotating discs are coaxially provided with axial through holes in a penetrating mode from top to bottom, two driving needle machining positioning openings are symmetrically formed in the circumferential side wall of each rotating disc, the positions of the driving needle machining positioning openings of the two rotating discs are opposite, and each driving needle is arranged in the center of the connecting line of the two driving needle machining positioning openings of the rotating discs. The swing driving assembly is simple in structure, more accurate and stable in takt, low in machining difficulty, low in production cost and rapid and convenient to maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of metronomes, and in particular relates to a swing driving component of a metronome, a swing device and a metronome. Background Art

[0002] A metronome is a mechanical, electric or electronic device that can produce a stable beat at various speeds. After the Parisian E. Rouleau created the first metronome in 1696, there were many types of this device. The most commonly used one was the utility model of Austrian JN Meltzer in 1816. Meltzer's metronome is pyramid-shaped in appearance, with a clock structure inside, gears and springs, driving a pendulum, which emits a sharp "tick" sound at the end of each swing of the pendulum. The speed of these ticks can be adjusted by moving the pendulum up and down according to the vernier scale engraved on the pendulum. The swing device of the mechanical metronome is the core device of the metronome, and the swing drive assembly is an important component of the swing device. The swing drive assembly of the existing mechanical metronome has a complex structure, the drive positioning is not accurate enough, the processing is difficult, and the cost is high. Utility Model Content

[0003] The utility model aims to provide a swing drive component, a swing device and a metronome of a metronome. The swing drive component has a simple structure, and the drive positioning is more accurate and stable, the processing difficulty is low, the production cost is low, and the maintenance is quick and convenient.

[0004] The specific contents of the plan are as follows:

[0005] A swing drive assembly of a metronome includes an integrally formed drive shaft, two rotating disks and a gear column, and also includes two drive needles. The gear column, the two rotating disks and the drive shaft sandwiched between the two rotating disks are coaxially penetrated by an axial through hole from top to bottom. Two drive needle processing positioning holes are symmetrically provided on the circumferential side wall of each rotating disk, and the drive needle processing positioning holes of the two rotating disks are in opposite positions. Each drive needle is arranged at the center position of the line connecting the two drive needle processing positioning holes of the rotating disk.

[0006] The drive shaft, two rotating disks and gear column of the swing drive assembly of the metronome are integrally formed, and also include two drive needles. The gear column, two rotating disks and the drive shaft sandwiched between the two rotating disks are coaxially penetrated from top to bottom with an axial through hole, and this axial through hole is used for rotational connection with the mounting shaft of the swing device of the metronome. The integrally formed structure saves production costs, simplifies the installation procedure, and saves labor. Two drive needle processing positioning holes are symmetrically provided on the circumferential side wall of each rotating disk, and the drive needle processing positioning holes of the two rotating disks are in opposite positions, and the drive needle processing positioning holes of the two rotating disks are at an angle of 180 degrees. Each drive needle is set at the center position of the line connecting the two drive needle processing positioning holes of the rotating disk. The purpose of setting the drive needle processing positioning hole is to enable accurate positioning of the drive needle.

[0007] Furthermore, the driving shaft, two rotating disks and the gear column are integrally injection molded of wear-resistant plastic, the driving needle is made of metal, the lower end of the driving needle is vertically connected to the rotating disk, the upper end of the driving needle is exposed outside the inner end surface of the rotating disk, and the vertical distance from the top of the cone of the driving needle to the rotating disk on the same side is half of the vertical distance between the two rotating disks.

[0008] The drive shaft, two rotating disks and the gear column are integrally injection molded with wear-resistant plastic. Injection molding of wear-resistant plastic can greatly reduce processing costs, and the wear-resistant plastic has high hardness and good wear resistance, and can be used for a long time without damage. However, the drive needle collides with the metal swing head of the swing arm of the metronome at a fixed frequency for a long time. If the drive needle is made of wear-resistant plastic, it is very easy to wear and damage, which affects the accuracy and service life of the metronome. Therefore, the drive needle is still made of metal. The lower end of the drive needle is vertically connected to the rotating disk, and the upper end of the drive needle is exposed outside the inner end surface of the rotating disk, and the vertical distance from the top of the cone of the drive needle to the rotating disk on the same side is half of the vertical distance between the two rotating disks. The two drive needles are located on both sides of the swing head of the swing arm of the metronome during actual use, and the cone of the drive needle touches the swing head in turn to realize the rhythmic left and right swing of the drive swing arm. The vertical distance from the top of the cone of each driving needle to the rotating disk on the same side is half of the vertical distance between the two rotating disks, so as to ensure that the swing head of the swing arm is not blocked by the overly long driving needle, which makes the swing arm of the metronome unable to swing. The driving needle can be fixed on the rotating disk in an irremovable manner by any method of mechanical fixing, chemical fixing or thermal fixing. The driving needle can be embedded in the rotating disk, can be fixed to the rotating disk by glue or adhesive, and can also be inserted into the rotating disk by heating the metal.

[0009] Furthermore, the driving needle is detachably connected to the rotating disk.

[0010] The driving needle of the utility model can also be installed on the rotating disk by a detachable connection method. The detachable connection method can facilitate the removal of the damaged driving needle and replace it with a new one when the driving needle is severely worn due to long-term use, which is convenient for maintenance and saves costs.

[0011] Furthermore, an internal threaded blind hole is provided at the center position of the line connecting the two driving needle processing positioning ports of each rotating disk, and a matching external thread is provided on the outer circumferential surface of the lower end of the driving needle. The lower end of the driving needle is screwed into the internal threaded blind hole, and the upper end of the driving needle is exposed outside the inner end surface of the corresponding rotating disk.

[0012] The method for detachably connecting the driving needle to the rotating disk is to open a blind hole with an internal thread at the center position of the line connecting the two driving needle processing positioning ports on the rotating disk, and a matching external thread is provided on the outer circumferential surface of the lower end of the driving needle. The lower end of the driving needle is screwed into the internal thread blind hole, and the upper end of the driving needle is exposed outside the inner end surface of the installed rotating disk.

[0013] Furthermore, it also includes two flat-head top screws, a driving needle mounting blind hole is provided at the center position of the line connecting the two driving needle processing positioning ports of each rotating disk, a top screw hole is provided on the side wall of the rotating disk, the top screw hole is connected to the driving needle mounting blind hole, the lower end of the driving needle is inserted into the driving needle mounting blind hole, the flat-head top screw is screwed into the top screw hole and is crimped with the lower end of the driving needle to limit the position.

[0014] The method of detachably connecting the driving needle to the rotating disk can also be that a driving needle installation blind hole is provided on each rotating disk, the position of the driving needle installation blind hole is set at the center position of the line connecting the two driving needle processing positioning ports, a top screw hole is opened on the side wall of the rotating disk, the top screw hole and the driving needle installation blind hole are connected, the lower end of the driving needle is inserted into the driving needle installation blind hole, the flat head top screw is screwed into the top screw hole, the front end of the flat head top screw is limited and pressed with the lower end of the driving needle, so that the driving needle is firmly fixed in the driving needle installation blind hole. When the driving needle needs to be replaced, the flat head top screw is removed and the driving needle is pulled out, which is very convenient to disassemble.

[0015] Furthermore, an annular limiting plate is provided on the upper end surface of the gear column, and the diameter of the limiting plate is larger than the outer diameter of the gear column.

[0016] An annular limit plate may be provided on the upper end surface of the gear column, the diameter of the limit plate being larger than the outer diameter of the gear column. The setting of the limit plate can limit the gear meshing with the gear column so that the gear will not come out during the rotation process.

[0017] A metronome swing device includes the swing drive assembly of the metronome and a swing rod, the swing rod includes a swing head, the swing rod is vertically arranged with the swing drive assembly of the metronome, and the swing head can swing and contact the conical side walls of two driving needles of the swing drive assembly of the metronome respectively.

[0018] The metronome swing device includes the swing drive component of the metronome, and the metronome swing device also includes a swing arm and a mounting frame. The swing drive component of the metronome is rotatably connected to the horizontally arranged mounting shaft of the mounting frame. The swing arm includes a main rod, a swing head, and a rotating shaft. The main rod is vertically connected to the front end of the rotating shaft, and the swing head is vertically arranged at the rear end of the rotating shaft. The rotation of the rotating shaft is connected to the mounting frame and is perpendicular to the swing drive component of the metronome. The swing head is located between the two driving needles of the swing drive component of the metronome. The gear column of the swing drive component of the metronome is driven by an external rotational power source through gear meshing transmission, and the conical side walls of the two driving needles alternately touch the swing head in turn, causing it to swing left and right, and the main rod swings left and right accordingly.

[0019] A metronome comprises the metronome swinging device.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The swing drive assembly of the utility model has a simple structure. Except for the drive needle which is made of metal, other parts are made of wear-resistant plastic injection molding, which is easy to process and greatly saves costs;

[0022] 2. The rotating disk of the swing drive assembly of the utility model is symmetrically provided with two drive needle processing positioning holes, which can ensure that the installation position of the drive needle is more accurate. The drive needle swings to drive the swing head of the swing rod of the metronome, making the beat of the metronome more accurate and stable;

[0023] 3. The driving needle of the swing driving assembly of the utility model can be detachable. The detachable driving needle can be removed and replaced with a new driving needle after being worn, without replacing the entire swing driving assembly, which is convenient for maintenance and low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the swing drive assembly of the metronome of the present invention, in which the drive needle is non-detachably connected to the rotating disk;

[0025] Figure 2 It is a schematic diagram of the overall structure of the swing drive assembly of the metronome of the present invention, in which the rotating disk is provided with a flat head screw and the driving needle is detachably connected to the rotating disk;

[0026] Figure 3 It is a schematic diagram of the overall structure of the gear column of the swing driving assembly of the metronome of the utility model provided with a limit plate;

[0027] Figure 4 It is a connection diagram of a swing drive assembly in which a swing rod and a drive needle are fixedly connected to each other in the utility model;

[0028] Figure 5 It is a connection schematic diagram of a swing drive assembly in which the swing rod and the driving needle are detachably connected and the gear column is provided with a limit plate.

[0029] In the figure:

[0030] 1. Driving shaft; 2. Rotating plate; 21. Driving needle processing positioning hole; 3. Gear column; 31. Limiting plate; 4. Driving needle; 5. Driving needle mounting seat; 6. Flat head screw; 7. Rocker; 71.

[0031] Bob your head. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "an", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.

[0034] It should be noted that the directions or positional relationships indicated by the terms "front", "rear", "inside" and "outside" in the present invention are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] It should be particularly noted that any symbols and / or numbers in the specification that are not marked in the accompanying drawings are not drawing marks.

[0036] The embodiments provided by the utility model, namely, a swing drive assembly of a metronome, a swing device and an embodiment of a metronome, are described below in combination with Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 Provide detailed explanation.

[0037] Embodiment 1:

[0038] See Figure 1As shown, a swing drive assembly of a metronome includes an integrally formed drive shaft 1, two rotating disks 2 and a gear column 3, and also includes two drive needles 4. The gear column 3, the two rotating disks 2 and the drive shaft 1 clamped between the two rotating disks 2 are coaxially penetrated by an axial through hole from top to bottom. Two drive needle processing positioning holes 21 are symmetrically provided on the circumferential side wall of each rotating disk 2, and the drive needle processing positioning holes 21 of the two rotating disks 2 are in opposite positions. Each drive needle 4 is arranged at the center position of the line connecting the two drive needle processing positioning holes 21 of the rotating disk 2.

[0039] The driving shaft 1, the two rotating disks 2 and the gear column 3 are integrally injection molded of wear-resistant plastic, the driving needle 4 is made of metal, the lower end of the driving needle 4 is vertically connected to the inside of the rotating disk 2, the upper end of the driving needle 4 is exposed outside the inner end surface of the rotating disk 2, and the vertical distance from the top of the cone of the driving needle 4 to the rotating disk on the same side is half of the vertical distance between the two rotating disks 2.

[0040] The driving needle 4 is detachably connected to the rotating disk 2 .

[0041] An internal threaded blind hole is provided at the center position of the line connecting the two driving needle processing positioning ports 21 of each rotating disk 2, and a matching external thread is provided on the outer circumferential surface of the lower end of the driving needle 4. The lower end of the driving needle 4 is screwed into the internal threaded blind hole, and the upper end of the driving needle 4 is exposed outside the inner end surface of the corresponding rotating disk 2.

[0042] See Figure 2 As shown, it also includes two flat-head top screws 6, and a driving needle mounting blind hole is provided at the center position of the line connecting the two driving needle processing positioning ports 21 of each rotating disk 2. A top screw hole is provided on the side wall of the rotating disk 2, and the top screw hole is connected to the driving needle mounting blind hole. The lower end of the driving needle 4 is inserted into the driving needle mounting blind hole, and the flat-head top screw 6 is screwed into the top screw hole and is crimped with the lower end of the driving needle 4 to limit the position.

[0043] See Figure 3 As shown, an annular limiting plate 31 is provided on the upper end surface of the gear column 3 , and the diameter of the limiting plate 31 is larger than the outer diameter of the gear column 3 .

[0044] Embodiment 2:

[0045] The utility model also provides a metronome swing device. Figure 4 , Figure 5 As shown, the swing drive assembly of the metronome also includes a swing rod 7, and the swing rod 7 includes a swing head 71. The swing rod 7 is vertically arranged with respect to the swing drive assembly of the metronome, and the swing head 71 can swing and contact the conical side walls of the two driving needles 4 of the swing drive assembly of the metronome respectively.

[0046] Embodiment 3:

[0047] The utility model also provides a metronome, comprising the metronome swinging device.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A swing drive assembly of a metronome, characterized in that: The invention comprises an integrally formed drive shaft (1), two rotating disks (2) and a gear column (3), and also comprises two drive needles (4); the gear column (3), the two rotating disks (2) and the drive shaft (1) sandwiched between the two rotating disks (2) are coaxially penetrated from top to bottom by an axial through hole; two drive needle machining positioning openings (21) are symmetrically arranged on the circumferential side wall of each rotating disk (2); the drive needle machining positioning openings (21) of the two rotating disks (2) are located in opposite positions; and each drive needle (4) is arranged at the center position of the line connecting the two drive needle machining positioning openings (21) of the rotating disk (2).

2. The swing drive assembly of the metronome according to claim 1, characterized in that: The driving shaft (1), the two rotating disks (2) and the gear column (3) are integrally injection-molded with wear-resistant plastics. The driving needle (4) is made of metal. The lower end of the driving needle (4) is vertically connected to the inside of the rotating disk (2), and the upper end of the driving needle (4) is exposed outside the inner end surface of the rotating disk (2). The vertical distance from the top of the cone of the driving needle (4) to the rotating disk on the same side is half of the vertical distance between the two rotating disks (2).

3. The swing drive assembly of the metronome according to claim 2, characterized in that: The driving needle (4) is detachably connected to the rotating disk (2).

4. The swing drive assembly of the metronome according to claim 3, characterized in that: An internal threaded blind hole is provided at the center position of the line connecting the two driving needle processing positioning ports (21) of each rotating disk (2), and a matching external thread is provided on the outer circumferential surface of the lower end of the driving needle (4). The lower end of the driving needle (4) is screwed into the internal threaded blind hole, and the upper end of the driving needle (4) is exposed outside the inner end surface of the corresponding rotating disk (2).

5. The swing drive assembly of the metronome according to claim 3, characterized in that: It also includes two flat head top screws (6), a driving needle mounting blind hole is provided at the center position of the line connecting the two driving needle processing positioning holes (21) of each rotating disk (2), a top screw hole is provided on the side wall of the rotating disk (2), the top screw hole is connected to the driving needle mounting blind hole, the lower end of the driving needle (4) is inserted into the driving needle mounting blind hole, and the flat head top screw (6) is screwed into the top screw hole and is limitedly crimped with the lower end of the driving needle (4).

6. The swing drive assembly of the metronome according to any one of claims 1 to 5, characterized in that: An annular limiting plate (31) is provided on the upper end surface of the gear column (3), and the diameter of the limiting plate (31) is greater than the outer diameter of the gear column (3).

7. A metronome swing device, characterized in that: The invention comprises a swing drive assembly of a metronome as claimed in any one of claims 1 to 6, comprising the swing drive assembly of the metronome, and further comprising a swing rod (7), wherein the swing rod (7) comprises a swing head (71), wherein the swing rod (7) is vertically arranged to the swing drive assembly of the metronome, and the swing head (71) can swing and contact the conical side walls of two driving needles (4) of the swing drive assembly of the metronome respectively.

8. A metronome, characterized in that: It comprises the metronome swinging device as claimed in claim 7.

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