Driving handle double-connecting-rod transmission structure

Abstract

The utility model discloses a driving handle double-connecting-rod transmission structure, which relates to the technical field of electric toothbrushes and comprises a toothbrush head, a motor and a double-connecting-rod transmission module, the double-connecting-rod transmission module is connected between the toothbrush head and the motor, and the toothbrush head can perform high-frequency reciprocating rotation through the motor and the double-connecting-rod transmission module. And the double-connecting-rod transmission module can enable the reciprocating rotation amplitude of the toothbrush head to be larger. According to the driving handle double-connecting-rod transmission structure, through the arranged double-connecting-rod transmission module, the toothbrush head cannot be driven to rotate and swing in a reciprocating mode at high frequency, the rotating stroke of the double-connecting-rod transmission structure is doubled compared with that of a single connecting rod, the cleaning area is increased at the same time, the cleaning area is increased within the same time, and efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of electric toothbrushes, in particular to a double-connecting rod transmission structure of a driving handle. Background Art

[0002] The electric toothbrushes currently on the market basically clean teeth through motor vibration, which transmits the vibration force of the motor to the toothbrush bristles. In this way, the vibration force and amplitude of the toothbrush bristles are small, and the effect of cleaning teeth is not ideal. For this reason, we proposed a double-link transmission structure for the drive handle. The double-link has a longer rotational stroke than the single-link, which also increases the cleaning area. In the same amount of time, the cleaning area is increased. Summary of the invention

[0003] Therefore, the utility model provides a double-connecting rod transmission structure of a driving handle to solve the above-mentioned problems in the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-connecting rod transmission structure of a drive handle, including a toothbrush head and a motor, and also including:

[0005] A double-link transmission module is connected between the toothbrush head and the motor. The motor and the double-link transmission module enable the toothbrush head to reciprocate at a high frequency, and the double-link transmission module enables the toothbrush head to reciprocate with a larger amplitude.

[0006] Furthermore, the driving handle double connecting rod transmission structure also includes:

[0007] A base, wherein the motor is installed inside the base;

[0008] The stabilizing member is clamped and fixed on the end of the base.

[0009] Furthermore, the double-link transmission module includes a transmission shaft and a drive handle, the exterior of the transmission shaft is connected to a second connecting rod via a gear fixing structure, and a through hole is penetrated through the upper portion of the second connecting rod.

[0010] Furthermore, the end of the driving handle is fixedly connected with a transmission boss 1, the outside of the transmission boss 1 is fixedly connected with a connecting rod 1, and the lower part of the connecting rod 1 is fixedly connected with a transmission boss 2.

[0011] Furthermore, the second transmission boss is inserted into the through hole, and the first connecting rod and the second connecting rod can rotate relative to each other.

[0012] Furthermore, the toothed fixing structure includes:

[0013] teeth, the teeth being connected to the outside of the transmission shaft;

[0014] A tooth groove, wherein the tooth groove is provided at the lower part of the second connecting rod;

[0015] The teeth and the tooth grooves are engaged with each other.

[0016] Compared with the prior art, it has the following beneficial effects:

[0017] The double-link transmission structure of the drive handle can drive the toothbrush head to rotate back and forth at a high frequency through the double-link transmission module. Moreover, the double-link transmission structure has doubled the rotation stroke compared to the single-link, which also increases the cleaning area. In the same amount of time, the cleaning area is increased and the efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0020] Figure 1 This is a disassembled stereoscopic diagram of a double-connecting rod transmission structure of a drive handle provided in some embodiments of the utility model.

[0021] Figure 2 This is a stereoscopic assembly diagram of a double-connecting rod transmission structure of a drive handle provided in some embodiments of the utility model.

[0022] Figure 3 This is a disassembled stereoscopic diagram of a double-link transmission module of a double-link transmission structure of a driving handle provided in some embodiments of the utility model.

[0023] Figure 4 A stereoscopic diagram of the assembly of a double-link transmission module of a double-link transmission structure of a drive handle provided in some embodiments of the utility model.

[0024] Figure 5 A half-section view of the assembled double-connecting rod transmission structure of the drive handle provided in some embodiments of the utility model.

[0025] In the figure: 1. toothbrush head; 2. motor; 3. double-link transmission module; 31. transmission shaft; 32. drive handle; 33. transmission boss 1; 34. connecting rod 1; 35. transmission boss 2; 36. connecting rod 2; 37. through hole; 38. teeth; 39. tooth grooves; 4. base; 5. stabilizing member. DETAILED DESCRIPTION

[0026] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 5 As shown, the double-link transmission structure of the drive handle in the embodiment of the first aspect of the utility model includes a toothbrush head 1, a motor 2, a double-link transmission module 3, a base 4 and a fixing member 5, wherein the double-link transmission module 3 further includes a transmission shaft 31, a drive handle 32, a connecting rod 1 34 and a connecting rod 2 36, one end of the transmission shaft 31 is inserted into the interior of the toothbrush head 1, and can drive the toothbrush head 1 to rotate, the other end of the transmission shaft 31 is rotatably connected to the base 4 through a bearing, the drive handle 32 is installed on the driving end of the motor 2, and the drive handle The end of the drive shaft 32 is integrally connected with a transmission boss 1 33, and the drive handle 32 is fixedly connected to the edge of the connecting rod 1 34 through the transmission boss 1 33. The lower part of the connecting rod 1 34 is integrally connected with a transmission boss 2 35, and the transmission boss 2 35 is inserted into a through hole 37 opened on the upper part of the connecting rod 2 36, so that the connecting rod 1 34 and the connecting rod 2 36 can rotate relative to each other. The connecting rod 2 36 is sleeved on the outside of the transmission shaft 31, and the transmission shaft 31 and the connecting rod 2 36 are fixed by teeth 38 and tooth grooves 39.

[0028] In addition, the fixing member 5 is fixed at the end of the base 4, the driving handle 32, the connecting rod 1 34 and the connecting rod 2 36 are all located inside the fixing member 5, and only the transmission shaft 31 extends from the inside of the fixing member 5, and the two can rotate relative to each other.

[0029] The double-connecting rod transmission structure of the driving handle, when working, the motor 2 drives the driving handle 32 to rotate. Since the driving handle 32, the transmission boss 1 33, and the connecting rod 1 34 are a whole, the connecting rod 1 34 will rotate synchronously with the driving handle 32. When the connecting rod 1 34 rotates, the other end of the connecting rod 1 34 moves in a circular trajectory, and the connecting rod 1 34 and the connecting rod 2 36 can rotate relative to each other, so it will drive the connecting rod 2 36 to continuously reciprocate and deflect, thereby driving the transmission shaft 31 to reciprocate and deflect, and finally the purpose of high-frequency reciprocating rotation of the toothbrush head 1 can be achieved. Compared with the single connecting rod, the reciprocating rotation amplitude of the toothbrush head 1 is larger, and the effect and efficiency of cleaning teeth are greatly improved.

[0030] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

[0031] The terms such as "upper", "lower", "left", "right", "middle", etc. cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

Claims

1. A double-connecting rod transmission structure of a drive handle, comprising a toothbrush head (1) and a motor (2), characterized in that: Also includes: A double-link transmission module (3), wherein the double-link transmission module (3) is connected between the toothbrush head (1) and the motor (2), and the motor (2) and the double-link transmission module (3) enable the toothbrush head (1) to reciprocate at a high frequency, and the double-link transmission module (3) enables the toothbrush head (1) to reciprocate with a larger amplitude; The double-link transmission module (3) comprises a transmission shaft (31) and a driving handle (32); the outside of the transmission shaft (31) is connected to a second connecting rod (36) via a toothed fixing structure; a through hole (37) is formed through the upper portion of the second connecting rod (36); The end of the driving handle (32) is fixedly connected to a transmission boss 1 (33), the outside of the transmission boss 1 (33) is fixedly connected to a connecting rod 1 (34), and the lower part of the connecting rod 1 (34) is fixedly connected to a transmission boss 2 (35).

2. The double-connecting rod transmission structure of the driving handle according to claim 1, characterized in that: Also includes: A base (4), wherein the motor (2) is installed inside the base (4); A stabilizing member (5), wherein the stabilizing member (5) is snap-fitted and fixed to an end portion of the base (4).

3. The double-connecting rod transmission structure of the driving handle according to claim 1, characterized in that: The second transmission protrusion (35) is inserted into the through hole (37), and the first connecting rod (34) and the second connecting rod (36) can rotate relative to each other.

4. The double-connecting rod transmission structure of the driving handle according to claim 1, characterized in that: The toothed fixing structure comprises: Teeth (38), the teeth (38) being connected to the outside of the transmission shaft (31); A tooth groove (39), wherein the tooth groove (39) is provided at the lower part of the second connecting rod (36); The teeth (38) and the tooth grooves (39) are engaged with each other.

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