CN114246782A

CN114246782A - Dynamic pressure generating device and massager

Info

Publication number: CN114246782A
Application number: CN202210018720.5A
Authority: CN
Inventors: 俞勇; 何敏超; 王永清
Original assignee: Shenzhen Svakom Technology Co ltd
Current assignee: Shenzhen Svakom Technology Co ltd
Priority date: 2022-01-08
Filing date: 2022-01-08
Publication date: 2022-03-29

Abstract

The invention discloses a dynamic pressure generating device and a massager, wherein the dynamic pressure generating device comprises an inner sleeve with a cavity, a moving part arranged in the cavity and a driving mechanism for driving the moving part to linearly reciprocate, the inner sleeve is provided with an inner sleeve opening communicated with the cavity, a fit clearance is arranged between the inner sleeve and the moving part, and the fit clearance is not more than 0.1 MM. When the inner sleeve is used, the driving mechanism makes the moving part, such as the piston, reciprocate in the inner sleeve along the length direction tile, and when the opening of the outer sleeve is in a closed state, the reciprocating motion of the piston can change the volume of the cavity of the inner sleeve, so that the air pressure in the inner sleeve is in dynamic change. Because the fit clearance is not more than 0.1MM, pressure change can be generated in the chamber when the moving part reciprocates, namely dynamic pressure is generated, negative pressure can be generated at the opening of the negative pressure inner sleeve, and negative pressure and small resistance can be generated between the moving part and the chamber. Can be widely used for products such as massage and the like.

Description

Dynamic pressure generating device and massager

Technical Field

The invention relates to the technical field of massage, in particular to a dynamic pressure generating device and a massager.

Background

With the increasing pace of life, the working pressure of people is increasing, and people often work overtime in order to complete work tasks. After undergoing a one-day intense work, a person's body becomes exhausted, and in order to relieve fatigue and maintain physical and mental health, the person generally massages the body using a massager. The existing massagers generally carry out vibration massage, an eccentric structure is driven to rotate through a motor to generate vibration, and the massagers are in contact with the massage parts of a human body and transmit the vibration to the human body, so that the effect of massaging the human body is achieved.

When the existing massager generates negative pressure, the negative pressure can be realized only by overcoming larger frictional resistance, thereby increasing the difficulty. Meanwhile, the massager usually makes a loud sound during massage, which affects the use experience of the user.

Disclosure of Invention

The invention mainly solves the technical problem of providing a dynamic pressure generating device and a massager, wherein the dynamic pressure generating device can change the pressure change of a specific space and reduce the resistance when the pressure changes.

In order to solve the technical problem, the invention provides a dynamic pressure generating device which comprises an inner sleeve with a cavity, a moving part arranged in the cavity and a driving mechanism for driving the moving part to linearly reciprocate along the cavity, wherein the inner sleeve is provided with an inner sleeve opening communicated with the cavity, a fit clearance is arranged between the inner sleeve and the moving part, and the fit clearance is not more than 0.1 MM.

Further, the fit clearance is not greater than 0.05 MM. Further, the inner sleeve is sleeved with an outer sleeve made of elastic material, and the outer sleeve is provided with an outer sleeve opening communicated with the inner sleeve opening.

Further, a soundproof chamber is provided between the outer sleeve and the inner sleeve at least in a middle portion.

Furthermore, the two ends of the outer sleeve are provided with stop blocks extending towards the cavity direction, and the two stop blocks form a containing cavity for containing the inner sleeve.

Further, the sound isolation chamber is a vacuum.

Further, the elastic material includes silicone.

Further, the inner sleeve is made of metal.

Further, the metal material includes copper.

Further, the moving part comprises a piston provided with a free end and a driving end, and a cavity is arranged at the free end of the piston.

Further, the driving end of the piston is provided with a transmission member extending in the direction of movement.

Furthermore, the driving mechanism comprises a motor and an eccentric part arranged on a rotating shaft of the motor, the eccentric part is movably connected with the transmission part through a connecting rod, and bearings are respectively arranged between the connecting rod and the transmission part and between the connecting rod and the eccentric part.

Further, the piston sleeve is provided with a sleeve ring, and the matching gap is positioned between the sleeve ring and the inner sleeve.

Further, the collar is made of aluminum.

The invention also provides a massager, which comprises a shell and a dynamic pressure generating device arranged on the shell, and is characterized in that the dynamic pressure generating device comprises an inner sleeve provided with a cavity, a moving part arranged in the cavity and a driving mechanism for driving the moving part to linearly reciprocate along the cavity, the inner sleeve is provided with an inner sleeve opening communicated with the cavity, a fit clearance is arranged between the inner sleeve and the moving part, and the fit clearance is not more than 0.1 MM.

Further, the sound isolation chamber is a vacuum.

Further, the elastic material includes silicone.

Further, the inner sleeve is made of metal.

Further, the metal material includes copper.

Further, the collar is made of aluminum.

Furthermore, the massager also comprises a control circuit for controlling the pressure of the dynamic pressure generating device to change continuously and a power supply for supplying power to the control circuit and the dynamic pressure generating device.

The invention relates to a dynamic pressure generating device and a massager, wherein the dynamic pressure generating device comprises an inner sleeve with a cavity, a moving part arranged in the cavity and a driving mechanism for driving the moving part to linearly reciprocate along the cavity, the inner sleeve is provided with an inner sleeve opening communicated with the cavity, a fit clearance is arranged between the inner sleeve and the moving part, and the fit clearance is not more than 0.1 MM. When the pneumatic pressure-regulating device is used, the driving mechanism enables a moving part such as a piston to reciprocate in the inner sleeve along the length direction of the inner sleeve, and when the opening of the outer sleeve is in a closed state, the volume of a cavity formed by the inner sleeve can be changed through the reciprocating motion of the piston, so that the air pressure in the inner sleeve is in dynamic change. Because the fit clearance is not more than 0.1MM, pressure change can be generated in the chamber when the moving part reciprocates, namely dynamic pressure is generated, negative pressure can be generated at the opening of the negative pressure inner sleeve, negative pressure can be generated between the moving part and the chamber, and resistance generated when the dynamic pressure changes can be reduced.

The elastic outer sleeve is arranged outside the inner sleeve, so that on one hand, the vibration can be reduced from being transmitted outwards, and on the other hand, the noise generated by indirect triggering with the inner sleeve during the motion of the piston can be reduced from being transmitted outwards, thereby achieving the purpose of reducing the noise. Can be widely used for products such as massage and the like.

Drawings

In order to illustrate the embodiments of the invention or the technical solutions in the prior art more clearly, the drawings that are needed in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the description only show some embodiments of the invention and therefore should not be considered as limiting the scope, and for a person skilled in the art, other related drawings can also be obtained from these drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a first embodiment of a dynamic pressure generating device.

Fig. 2 is an exploded view of the first embodiment of the dynamic pressure generating device.

Fig. 3 is a schematic structural view of a section along the rotation axis of the driving part.

Fig. 4 is an enlarged schematic view of a part B of fig. 3.

Fig. 5 is an enlarged schematic view of the embodiment of part D in fig. 3.

Fig. 6 is an enlarged schematic view of another embodiment of the portion B in fig. 3.

Fig. 7 is an exploded view of the second embodiment of the dynamic pressure generating device.

Fig. 8 is a schematic sectional view of the second embodiment of the dynamic pressure generating device along the direction of the rotation axis of the driving member.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The following claims of the present invention are further detailed in conjunction with the detailed description of the embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a subset of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any inventive work also belong to the protection scope of the present invention.

It should be understood that in the description of the embodiments of the present invention, all directional terms, such as "upper", "lower", "left", "right", "front", "back", etc., indicate orientations or positional relationships based on the orientations, positional relationships, or the orientations or positional relationships that the products of the present invention usually use, which are only used for the convenience of simplifying the description of the present invention, and do not indicate or imply that the devices, elements, or components that are referred to must have specific orientations and specific orientation configurations, and should not be construed as limiting the present invention. For the purpose of explaining only the relative positional relationship between the respective components, the movement, and the like, as shown in the drawings, when the specific posture is changed, the directional indication may be changed accordingly.

Furthermore, the use of ordinal terms such as "first", "second", etc., in the present application is for distinguishing between similar elements and not intended to imply or imply relative importance or the number of technical features indicated. The features defining "first" and "second" may be explicit or implicit in relation to at least one of the technical features. In the description of the present invention, "a plurality" means at least two, i.e., two or more, unless expressly defined otherwise; the meaning of "at least one" is one or both.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood in a broad sense, and for example, the positional relationship between the components may be fixed relatively, or the components may be physically fixed, or may be detachably connected, or may be integrated into a single structure; the connection can be mechanical connection or electrical signal connection; either directly or indirectly through intervening media or components; the two elements can be communicated with each other or can be mutually interacted, and unless the specification explicitly defines otherwise, the corresponding function or effect cannot be realized in other understanding manners, and the specific meaning of the terms in the invention can be understood by a person skilled in the art according to specific conditions.

The present invention relates to a controller and a control circuit, which are conventional control techniques or units for those skilled in the art, and the control circuit of the controller can be implemented by those skilled in the art by using conventional techniques, such as simple programming. Software or programs related to the implementation of the control result in cooperation with hardware, such as software or program control procedures related to the implementation of the control result, which are not described in detail in the specification, belong to the technical field of the prior art or the routine of a person with ordinary skill in the art. The power supply also adopts the prior art, and the main technical point of the invention lies in the improvement of mechanical devices, so the invention does not need to describe the specific circuit control relation and circuit connection in detail.

The present disclosure provides many different embodiments or examples for implementing different configurations of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described herein. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

As shown in fig. 1 to 4, the present invention provides a first embodiment of a dynamic pressure generating device.

The dynamic pressure generating device comprises an inner sleeve 6 provided with a cavity 60, a moving part 3 arranged in the cavity 60 and a driving mechanism for driving the moving part 3 to linearly reciprocate along the cavity 60, wherein the inner sleeve 6 is provided with an inner sleeve opening 61 communicated with the cavity 60, an outer sleeve 5 made of elastic material is sleeved outside the inner sleeve 6, and the outer sleeve 5 is provided with an outer sleeve opening 51 communicated with the inner sleeve opening 61.

In particular, said moving part 3 comprises a piston 31 provided with a free end 3A and a driving end 3B, a cavity 33 being provided at the free end 3A of the piston 31. The driving end 3B of the piston 31 is provided with a transmission member 32 extending in the direction of movement. The driving mechanism comprises a motor 1 and an eccentric part 2 arranged on a motor rotating shaft (not shown in the drawing), the eccentric part 2 is movably connected with a transmission part 32 through a connecting rod 4, bearings 8 are respectively arranged between the connecting rod 4 and the transmission part 32 and between the connecting rod 4 and the eccentric part 4, the bearings 8 are fixed with the eccentric part 4 through screws 9 to realize stable matching rotation with the eccentric part 4, and the other bearing 8 is also fixed with a fixed protrusion (not shown in the drawing) on the transmission part 32 through the other screw 9 to realize stable matching rotation with the transmission part 32.

The fit clearance 10 is provided between the inner sleeve 6 and the moving part 3, and through the test, the fit clearance 10 is not more than 0.1MM, so that the dynamic pressure can be generated at the outer sleeve opening 51 and the inner sleeve opening 61, namely, the negative pressure at the outer sleeve opening 51 and the inner sleeve opening 61, otherwise, the dynamic pressure can not be generated, namely, the variable pressure is generated in the chamber 60, and the best effect is achieved when the fit clearance 10 is less than 0.05 MM. When the moving part 3 is a piston, a collar 7 is arranged outside the piston, and a fit clearance 10 is arranged between the collar 7 and the inner sleeve 6, wherein the collar 7 is made of metal material, preferably aluminum. The fitting clearance 10 is smaller, so that the generation of larger noise can be avoided when the device is used, and the purpose of reducing noise is achieved. The moving part 3 is provided with a stop step (not shown in the drawings) for positioning the collar 7, as required, near the driving end, i.e. near the driving end of the piston.

In use, a driving mechanism causes a moving member such as a piston to reciprocate within the inner sleeve along its length shoe, and when the outer sleeve opening 51 is in a closed condition, the volume of the chamber formed by the inner sleeve 6 can be changed by the reciprocating movement of the piston, thereby causing the air pressure therein to be in a dynamic change. Because the fit clearance is not more than 0.1MM, pressure change can be generated in the chamber when the moving part reciprocates, namely dynamic pressure is generated, negative pressure can be generated at the opening of the negative pressure inner sleeve, negative pressure can be generated between the moving part and the chamber, and resistance generated when the dynamic pressure changes can be reduced.

The elastic outer sleeve 5 is arranged outside the inner sleeve 6, so that on one hand, the transmission of vibration to the outside can be reduced, and on the other hand, the transmission of noise generated by indirect triggering with the inner sleeve 6 when the piston moves can also be reduced, and the aim of reducing the noise can be achieved.

In this embodiment, the elastic material includes silicone, but other materials capable of absorbing noise or reducing noise transmission may be used. The inner sleeve 6 is made of existing metal material, such as copper.

The free end 3A of the piston is provided with a cavity 33 which can enlarge the chamber space, so that the dynamic pressure generating device can have a larger pressure change range and a larger pressure change space. Meanwhile, the cavity 33 can also increase the contact area between the moving part 3 and the air in the cavity, so that the moving part 3 is stressed uniformly in the moving process, and the purpose of stable movement is achieved.

As shown in fig. 5, the two ends of the outer sleeve 5 are provided with stoppers 50 extending in the cavity direction, the two stoppers 50 form a receiving cavity (not shown) for receiving the inner sleeve 6, and the outer sleeve 6 has a covering effect of the outer sleeve 5, thereby further reducing noise.

As shown in fig. 6, a soundproof chamber 11 is provided between the outer sleeve 5 and the inner sleeve 6 at least in an intermediate portion. The soundproof room 11 can reduce the outward spread of noise generated by vibration or the like when the piston reciprocates, thereby further improving the noise reduction effect. The soundproof room 11 is preferably vacuum, and the noise reduction effect of its compartment is better.

As shown in fig. 7 and 8, the present invention provides yet another embodiment. The difference between the dynamic pressure generating device and the above embodiment is that the collar and the piston are an integral structure, the integral structure is made of plastic, preferably, the collar and the piston are integrally formed by injection molding, and other structures are the same as those of the first embodiment, so that the description is omitted.

The invention provides an embodiment of a massager.

The massager comprises a shell and a dynamic pressure generating device arranged on the shell, wherein the dynamic pressure generating device comprises an inner sleeve 6 provided with a cavity, a moving part 3 arranged in the cavity 60 and a driving mechanism for driving the moving part 3 to do linear reciprocating motion along the cavity 60, the inner sleeve 6 is provided with an inner sleeve opening (not shown in the drawing) communicated with the cavity 60, an outer sleeve 5 made of elastic material is sleeved outside the inner sleeve 6, and the outer sleeve 5 is provided with an outer sleeve opening 51 communicated with the inner sleeve opening.

Specifically, the massager includes a control circuit (not shown) for controlling the pressure of the dynamic pressure generating device to be continuously changed and a power supply (not shown) for supplying power to the control circuit and the dynamic pressure generating device. Typically, the control circuit is disposed on a circuit board, and the power supply is powered by a common battery or directly by mains electricity.

The moving part 3 comprises a piston provided with a free end and a driving end, at the free end of which a cavity 33 is provided. The driving end of the piston is provided with a transmission member 32 extending in the direction of movement. The driving mechanism comprises a motor 1 and an eccentric part 2 arranged on a motor rotating shaft (not shown in the drawing), the eccentric part 2 is movably connected with a transmission part 32 through a connecting rod 4, bearings 8 are respectively arranged between the connecting rod 4 and the transmission part 32 and between the connecting rod 4 and the eccentric part 2 and between the connecting rod 4 and the transmission part 32 and between the transmission part 2 and the eccentric part 2, the bearings 8 are fixed with the eccentric part 4 through screws 9 to realize stable matching rotation with the eccentric part 4, and the other bearing 8 is also fixed with a fixing protrusion (not shown in the drawing) on the transmission part 32 through another screw 9 to realize stable matching rotation with the transmission part 32.

In addition, because the two ends of the connecting rod 4 are respectively rotatably connected with the transmission part 32 and the eccentric part 2 through the bearings 8, the friction force between the connecting rod 4 and the transmission part 32 and the eccentric part 2 is small, the noise is low, and the connecting rod is not easy to wear.

A fit clearance 10 is provided between the inner sleeve 6 and the moving part 3, the fit clearance 10 being not more than 0.1MM, preferably less than 0.05 MM. The fit clearance 10 is provided between the inner sleeve 6 and the moving part 3, and through the test, the fit clearance 10 is not more than 0.1MM, so that the dynamic pressure can be generated at the outer sleeve opening 51 and the inner sleeve opening 61, namely, the negative pressure at the outer sleeve opening 51 and the inner sleeve opening 61, otherwise, the dynamic pressure can not be generated, namely, the variable pressure is generated in the chamber 60, and the best effect is achieved when the fit clearance 10 is less than 0.05 MM. When the moving part 3 adopts a piston, a sleeve ring 7 is sleeved outside the piston, and a fit clearance 10 is positioned between the sleeve ring 7 and the inner sleeve 6, wherein the sleeve ring 7 is made of aluminum. The fitting clearance 10 is smaller, so that the generation of larger noise can be avoided when the device is used, and the purpose of reducing noise is achieved. The moving part 3 is provided with a stop step (not shown in the drawings) for positioning the collar 7, as required, near the driving end, i.e. near the driving end of the piston.

In use, a driving mechanism causes a moving member such as a piston to reciprocate within the inner sleeve 6 along its length, and when the outer sleeve opening 51 is in a closed state, the volume of the chamber formed by the inner sleeve 6 can be changed by the reciprocating movement of the piston, thereby causing the air pressure therein to be in a dynamic change. Because the fit clearance is not more than 0.1MM, pressure change can be generated in the chamber when the moving part reciprocates, namely dynamic pressure is generated, negative pressure can be generated at the opening of the negative pressure inner sleeve, negative pressure can be generated between the moving part and the chamber, and resistance generated when the dynamic pressure changes can be reduced.

The elastic outer sleeve 5 is arranged outside the inner sleeve, so that on one hand, the transmission of vibration to the outside can be reduced, and on the other hand, the transmission of noise generated by indirect triggering with the inner sleeve 6 when the piston moves can also be reduced, and the aim of reducing the noise can be achieved.

The free end 3A of the piston is provided with a cavity 33 which can enlarge the chamber space, so that the dynamic pressure generating device can have a larger pressure change range and a larger pressure change space.

As shown in fig. 6, a soundproof chamber 8 is provided between the outer sleeve 5 and the inner sleeve 6 at least in an intermediate portion. The soundproof chamber 8 can reduce the outward propagation of noise generated by vibration or the like when the piston 31 reciprocates, and can further improve the noise reduction effect. The soundproof room 8 is preferably vacuum, and the noise reduction effect of its compartment is better.

As shown in fig. 7 and 8, the present invention provides yet another embodiment. The difference between the dynamic pressure generating device and the above embodiment is that the piston sleeve is provided with a lantern ring and a piston which are integrated into a whole, and other structures are the same and are not described again.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments without departing from the spirit or scope of the present invention.

Claims

1. A dynamic pressure generating device comprises an inner sleeve (6) provided with a cavity, a moving part (3) arranged in the cavity (60) and a driving mechanism for driving the moving part (3) to do linear reciprocating motion along the cavity (60), wherein the inner sleeve (6) is provided with an inner sleeve opening communicated with the cavity (60), and a fit clearance (10) is arranged between the inner sleeve (6) and the moving part, and is characterized in that the fit clearance (10) is not more than 0.1 MM.

2. The dynamic pressure generating device of claim 1, wherein the fit-up clearance is no greater than 0.05 MM.

3. A dynamic pressure generating device as claimed in claim 1, characterized in that the inner sleeve (6) is surrounded by an outer sleeve (5) of an elastic material, which outer sleeve (5) is provided with an outer sleeve opening (51) communicating with the inner sleeve opening.

4. A dynamic pressure generating device according to claim 1, characterised in that the outer sleeve (5) is provided with a sound-insulating chamber (11) at least in an intermediate portion between the inner sleeve (6).

5. A dynamic pressure generating device as claimed in claim 4, characterized in that the outer sleeve (5) is provided at both ends with stops (51) extending in the direction of the chamber (60), the two stops (51) forming a receiving chamber for the inner sleeve (6).

6. The dynamic pressure generating device of claim 3, wherein the resilient material comprises silicone.

7. The dynamic pressure generating device according to claim 1, characterized in that the inner sleeve (6) is of metal.

8. A dynamic pressure generating device according to claim 1, characterised in that the moving part (3) comprises a piston (31) provided with a free end (3A) and a driving end (3B), a cavity (33) being provided at the free end (3A) of the piston (31).

9. A dynamic pressure generating device according to claim 8, characterised in that the driving end (3B) of the piston (31) is provided with a transmission member (32) extending in the direction of movement.

10. A dynamic pressure generating device according to claim 9, characterised in that the driving mechanism comprises a motor (1) and an eccentric member (2) arranged on the motor shaft, the eccentric member (2) is movably connected with the transmission member (32) by a connecting rod (4), and bearings (8) are arranged between the connecting rod (4) and the transmission member (32) and the eccentric member (2), respectively.

11. The dynamic pressure generating device according to claim 8, characterized in that the piston (31) is sleeved with a collar (7), and the fitting gap (10) is located between the collar (7) and the inner sleeve (6).

12. The dynamic pressure generating device of claim 11, wherein the collar is a metal.

13. A massaging apparatus comprising a housing and a dynamic pressure generating device provided in the housing, wherein the dynamic pressure generating device is the dynamic pressure generating device according to any one of claims 1 to 12.

14. The massager of claim 13, further comprising a control circuit for controlling the continuous variation of pressure of the dynamic pressure generating means and a power source for powering the control circuit and the dynamic pressure generating means.