Toy internal sounding device

Abstract

The utility model discloses a toy internal sounding device which comprises a main shell body, a side edge shell and a driving shaft, the main shell body and the side edge shell are fastened through a bolt after being connected in a clamping mode through a clamping buckle, and the two ends of the driving shaft penetrate through the surface of the main shell body and the surface of the side edge shell. A rod body of the driving shaft is sleeved with a driving shaft gear synchronously rotating with the rod body of the driving shaft, the driving shaft gear makes contact with gear teeth of the relay gear set, a knocking disc mounting column is arranged in the main shell, and a column body of the knocking disc mounting column is sleeved with an iron base plate and a plastic knocking disc; and a drum membrane is embedded in one side, far away from the main shell, of the side shell. When the sound production device in the toy is used, sound production in a mechanical mode can be achieved only by rotating the driving shaft, and electronic elements such as a loudspeaker do not need to be adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of sound-generating devices, in particular to a sound-generating device inside a toy. Background Art

[0002] The toy can make sounds according to the moving state during the moving process, which can increase the fun of using the toy. The application number retrieved is: CN201820701318.6, a double-sound pull-back toy car, in which the end of the elastic baffle is intermittently inserted into the tooth groove of the follower gear as the follower gear rotates, and has an independent sounding mechanism, which can attract children's attention.

[0003] Similar to the above-mentioned double-sounding pull-back toy car: although the elastic baffle is intermittently inserted into the tooth groove of the follower gear and continuously hits the gear teeth of the follower gear, a clear sound is continuously produced as the driving wheel assembly accumulates force, but first of all, its setting still needs to maintain the elasticity of the elastic baffle to ensure continuous occurrence. Long-term shaking will cause the elastic baffle to deform or the gap between it and the follower gear to increase, causing the sound to weaken or lose its sound.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a toy internal sound-generating device is proposed to achieve a more practical purpose. Utility Model Content

[0005] The purpose of the utility model is to provide a toy internal sound generating device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a toy internal sound-generating device, comprising a main shell, a side shell and a driving shaft, the main shell and the side shell are clamped together by means of snaps and then fastened by bolts, and both ends of the driving shaft pass through the surfaces of the main shell and the side shell, a driving shaft gear that rotates synchronously with the driving shaft is sleeved on the rod body of the driving shaft, the driving shaft gear is in contact with the gear teeth of the relay gear set, a knocking plate mounting column is arranged inside the main shell, an iron chassis and a plastic knocking plate are sleeved on the column body of the knocking plate mounting column, and a tympanic membrane is embedded on the side of the side shell away from the main shell.

[0007] Preferably, openings are reserved at positions corresponding to the side shell and the knock plate mounting column, and a protective cover is provided on the side of the eardrum away from the side shell, a plurality of groups of mounting clamps are provided on the edge of the protective cover, matching mounting clamp holes are provided at positions of the side shell corresponding to the mounting clamps, and a plurality of groups of sound-transmitting holes are provided on the shell of the protective cover.

[0008] Preferably, two groups of positioning holes are formed through the plate body of the iron chassis, and two groups of positioning posts are formed on the plastic knocking plate corresponding to the two groups of positioning holes, and the positioning posts are embedded in the positioning holes.

[0009] Preferably, a knocking plate gear is provided at the center of the lower end surface of the plastic knocking plate, and the knocking plate gear penetrates the plate surface of the iron chassis and contacts with the gear teeth of the relay gear set.

[0010] Preferably, the upper end surface of the plastic knocking plate is provided with two groups of symmetrically arranged wings, and an iron knocking nail is riveted at the center of the eardrum, and the end of the iron knocking nail is located on the rotation trajectory of the two groups of the wings.

[0011] Compared with the prior art, the utility model has the following beneficial effects: when the toy internal sound-generating device is used, it only needs to rotate the drive shaft to achieve mechanical sound generation, without the need for electronic components such as speakers;

[0012] Its specific structure is as follows: a driving shaft gear that rotates synchronously with the driving shaft is sleeved on the rod body of the driving shaft, the driving shaft gear and the gear teeth of the relay gear group are in contact with each other, the upper end surface of the plastic knocking plate is provided with two groups of symmetrically arranged wings, and an iron knocking nail is riveted at the center of the eardrum, and the end of the iron knocking nail is located on the rotation trajectory of the two groups of wings. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of a toy internal sound-generating device of the utility model;

[0014] Figure 2 This is a structural schematic diagram of the main shell of a toy internal sound-generating device of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the side shell of a toy internal sound-generating device of the utility model;

[0016] Figure 4 This is a three-dimensional structural diagram of the installation hole of a toy internal sound-generating device of the utility model;

[0017] Figure 5 This is a schematic diagram of the installation structure of the plastic knocking plate of a toy internal sound-generating device of the utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the eardrum of a toy internal sound-generating device of the utility model;

[0019] Figure 7 This is a schematic diagram of the structure of the protective cover of a toy internal sound-generating device of the utility model;

[0020] Figure 8This is a schematic diagram of the installation structure of a protective cover and a tympanic membrane of a toy internal sound-generating device of the utility model;

[0021] Fig. 9 This is a schematic diagram of the installation structure of the driving shaft of a toy internal sound-generating device of the utility model;

[0022] Fig.10 The utility model is a schematic diagram of the disassembled structure of a sound-generating device inside a toy.

[0023] In the figure: 1. Main shell; 2. Side shell; 21. Mounting hole; 22. Opening hole; 3. Drive shaft; 4. Drive shaft gear; 5. Relay gear set; 6. Knocking plate mounting column; 7. Iron chassis; 71. Positioning hole; 8. Plastic knocking plate; 81. Knocking plate gear; 82. Positioning column; 83. Wing; 9. Tympanum; 91. Iron knocking nail; 10. Protective cover; 101. Mounting clamp; 102. Sound-permeable hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0025] See also Figure 1 - Fig.10The utility model provides a technical solution: a toy internal sound-generating device, comprising a main shell 1, a side shell 2 and a drive shaft 3. The main shell 1 and the side shell 2 are connected by a buckle and then fastened by bolts. The two-petal structure is convenient for disassembly and maintenance. The two ends of the drive shaft 3 pass through the surface of the main shell 1 and the side shell 2. An external power source is used to rotate the drive shaft 3. A drive shaft gear 4 that rotates synchronously with the drive shaft 3 is sleeved on the rod body of the drive shaft 3. The drive shaft gear 4 and the gear teeth of the relay gear set 5 are in contact with each other. The rotating drive shaft 3 drives the drive shaft gear 4 that rotates synchronously with the drive shaft 3 to rotate, and at the same time, the gear teeth of the relay gear set 5 rotate. A knocking plate mounting column 6 is arranged inside the main shell 1. The knocking plate An iron chassis 7 and a plastic knocking plate 8 are sleeved on the column body of the mounting column 6. Two groups of positioning holes 71 are penetrated on the plate body of the iron chassis 7. Two groups of positioning columns 82 are arranged at the plastic knocking plate 8 corresponding to the two groups of positioning holes 71. The positioning columns 82 are embedded in the positioning holes 71, so that the iron chassis 7 and the plastic knocking plate 8 can rotate synchronously. A knocking plate gear 81 is arranged at the center of the lower end surface of the plastic knocking plate 8, and the knocking plate gear 81 penetrates the plate surface of the iron chassis 7 and contacts with the gear teeth of the relay gear set 5, and then transmits the rotation effect of the drive shaft 3 to the knocking plate gear 81 after transmission, thereby further driving the iron chassis 7 and the plastic knocking plate 8 to rotate, and a tympanic membrane 9 is embedded on the side of the side shell 2 away from the main shell 1.

[0026] An opening 22 is reserved at a position corresponding to the side shell 2 and the knock plate mounting column 6, and a protective cover 10 is provided on the side of the eardrum 9 away from the side shell 2, and a plurality of mounting clamps 101 are provided on the edge of the protective cover 10, and matching mounting clamp holes 21 are provided at the side shell 2 corresponding to the mounting clamps 101. While the mounting clamps 101 and the mounting clamp holes 21 are buckled with each other, the protective cover 10 is used to press the edge of the eardrum 9 onto the side shell 2, and a plurality of sound holes 102 are provided on the shell of the protective cover 10 to facilitate the transmission of the sound generated by the eardrum 9 through the sound holes 102.

[0027] The upper end surface of the plastic knocking plate 8 is provided with two groups of symmetrically arranged wings 83, and an iron knocking nail 91 is riveted at the center of the eardrum 9. The end of the iron knocking nail 91 is located on the rotation trajectory of the two groups of wings 83. Because the eardrum 9 has a conical shape and the iron knocking nail 91 at the center of the circle collides with the wings 83 in turn when the two groups of wings 83 rotate with the plastic knocking plate 8. When colliding, the iron knocking nail 91 vibrates synchronously with the eardrum 9 and transmits the sound waves out of the protective cover 10 through the sound-permeable hole 102.

[0028] Working principle: When the internal sound-generating device of the toy is used, an external power source is used to rotate the driving shaft 3. The rotating driving shaft 3 drives the driving shaft gear 4 that rotates synchronously with it to rotate, and at the same time, the gear teeth of the relay gear set 5 rotate, and then the rotation effect of the driving shaft 3 is transmitted to the knocking plate gear 81 after transmission, and further drives the iron chassis 7 and the plastic knocking plate 8 to rotate. While the mounting clamp 101 and the mounting clamp hole 21 are interlocked with each other, the protective cover 10 is used to press the edge of the eardrum 9 onto the side shell 2. Because the shape of the eardrum 9 is conical, and the iron knocking nail 91 at the center of the circle collides with the wings 83 in turn when the two groups of wings 83 rotate with the plastic knocking plate 8. During the collision, the iron knocking nail 91 vibrates synchronously with the eardrum 9 and transmits the sound waves out of the protective cover 10 through the sound-permeable hole 102.

Claims

1. A toy internal sound-generating device, comprising a main housing (1), a side housing (2) and a drive shaft (3), characterized in that: The main shell (1) and the side shell (2) are fastened by bolts after being clamped together by means of snaps, and both ends of the drive shaft (3) pass through the surface of the main shell (1) and the side shell (2). A drive shaft gear (4) that rotates synchronously with the drive shaft (3) is sleeved on the rod body of the drive shaft (3), and the gear teeth of the drive shaft gear (4) and the relay gear set (5) are in contact with each other. A knock plate mounting column (6) is arranged inside the main shell (1), and an iron chassis (7) and a plastic knock plate (8) are sleeved on the column body of the knock plate mounting column (6). A tympanic membrane (9) is embedded on the side of the side shell (2) away from the main shell (1).

2. A toy internal sound generating device according to claim 1, characterized in that: An opening (22) is reserved at a position corresponding to the side shell (2) and the knock plate mounting column (6), and a protective cover (10) is provided on the side of the eardrum (9) away from the side shell (2), and a plurality of groups of mounting clamps (101) are provided on the edge of the protective cover (10), and matching mounting clamp holes (21) are provided on the side shell (2) corresponding to the mounting clamps (101), and a plurality of groups of sound-permeable holes (102) are provided on the shell of the protective cover (10).

3. A toy internal sound generating device according to claim 1, characterized in that: The iron chassis (7) is provided with two groups of positioning holes (71) through the plate body, and the plastic knocking plate (8) is provided with two groups of positioning posts (82) corresponding to the two groups of positioning holes (71), and the positioning posts (82) are embedded in the positioning holes (71).

4. A toy internal sound generating device according to claim 1, characterized in that: A knocking plate gear (81) is arranged at the center of the lower end surface of the plastic knocking plate (8), and the knocking plate gear (81) penetrates the plate surface of the iron chassis (7) and contacts with the gear teeth of the relay gear set (5).

5. A toy internal sound generating device according to claim 1, characterized in that: The upper end surface of the plastic knocking plate (8) is provided with two groups of symmetrically arranged wings (83), and the center of the eardrum (9) is riveted with an iron knocking nail (91), and the end of the iron knocking nail (91) is located on the rotation trajectory of the two groups of wings (83).

Images