Negative pressure massage head and massage equipment

Abstract

The invention provides a negative pressure massage head and massage equipment. The negative pressure massage head comprises an air pump assembly, the air pump assembly comprises an air pump and a pump mounting seat, and the air pump is mounted on the pump mounting seat; the floating electrode is arranged in a floating manner relative to the pump mounting seat, the floating electrode is provided with an electrode surface, and the electrode surface is used for massaging the part to be massaged; the elastic surrounding edge surrounds the floating electrode, the elastic surrounding edge and the pump mounting base jointly define a floating cavity, the floating cavity is communicated with the air pump, the electrode face of the floating electrode is located in the floating cavity, the elastic surrounding edge is provided with a first end and a second end which are opposite to each other, the first end is connected to the pump mounting base, the second end is provided with an attaching part, and the attaching part defines a negative pressure opening; the negative pressure opening is communicated with the floating cavity, the attaching part is suitable for being attached to a to-be-massaged part to seal the floating cavity, and the elastic surrounding edge has the capacity of deforming in the axial direction of the negative pressure opening and the circumferential direction of the negative pressure opening so as to adapt to rotation of the to-be-massaged part.

Description

[0001] This application claims the priority of the Chinese patent application with application number 202322670648.7 and application name “Massage Head and Massage Equipment” filed on September 27, 2023; this application also claims the priority of the Chinese patent application with application number 202322671183.7 and application name “Massage Head and Massage Equipment” filed on September 27, 2023, and the contents of the above-mentioned prior applications are incorporated into this application by reference; this application also claims the priority of the Chinese patent application with application number 202322683535.0 and application name “Massage Head and Massage Equipment” filed on September 27, 2023, and the contents of the above-mentioned prior applications are incorporated into this application by reference. Technical Field

[0002] The present application relates to the technical field of massage equipment, and in particular to a negative pressure massage head and massage equipment. Background Art

[0003] With the development of technology, in daily work, study or leisure and entertainment activities, people often experience discomfort in the muscles or bones of the body due to maintaining an improper posture for a long time, and in severe cases, even develop diseases, thus affecting people's normal life. In order to relieve the discomfort in the muscles or bones, various types of massage equipment have appeared on the market, such as neck massagers. In the related art, the neck massager is provided with a massage head for massaging the neck, and the massage head is usually fixed to the neck by adhesive, however, the adhesive fixing method is not stable. Summary of the invention

[0004] The present application provides a negative pressure massage head and massage equipment.

[0005] In a first aspect, the present application provides a negative pressure massage head, the negative pressure massage head comprising:

[0006] An air pump assembly, the air pump assembly comprising an air pump and a pump mounting seat, the air pump being mounted on the pump mounting seat;

[0007] A floating electrode, wherein the floating electrode is arranged to float relative to the pump mounting seat, and the floating electrode has an electrode surface, and the electrode surface is used to massage the massaged part;

[0008] An elastic surrounding edge, wherein the elastic surrounding edge is arranged around the floating electrode, and the elastic surrounding edge and the pump mounting seat together form a floating cavity, the floating cavity is connected to the air pump, and the electrode surface of the floating electrode is located in the floating cavity. The elastic surrounding edge has a first end and a second end opposite to each other, the first end is connected to the pump mounting seat, and the second end has a fitting portion, the fitting portion is arranged around to form a negative pressure port, the negative pressure port is connected to the floating cavity, the fitting portion is suitable for fitting with the part to be massaged to form a closure for the floating cavity, and the elastic surrounding edge has the ability to deform along the axial direction of the negative pressure port and the circumferential direction of the negative pressure port to adapt to the rotation of the part to be massaged.

[0009] The maximum compression stroke of the elastic surrounding edge is greater than the maximum compression stroke of the floating electrode, and the height of the electrode surface protruding from the pump mounting seat is lower than the height of the fitting portion protruding from the pump mounting seat. The floating electrode is configured so that after the elastic surrounding edge is compressed to a preset stroke, when the elastic surrounding edge continues to be compressed, the floating electrode is compressed along with the elastic surrounding edge, so that the air in the floating cavity is discharged to form self-adsorption positioning.

[0010] wherein the outer diameter of the elastic rim gradually decreases in the direction from the second end to the first end, so as to form a reduction structure at the connection between the first end and the pump mounting seat, wherein the negative pressure massage head is configured such that when subjected to a pressing force, the second end forms an outward-turned state based on the reduction structure, and the outer edge of the fitting portion is supported by the inner edge of the fitting portion and deformed outward relative to the skin of the part to be massaged to form a gap, so that the air in the negative pressure cavity can be discharged through the gap; and the negative pressure massage head is configured such that when the pressing force is canceled, the outer edge of the fitting portion returns to fit the skin of the part to be massaged to form a self-adsorption positioning.

[0011] In which, the negative pressure massage head has a first state, which is a free state. When the negative pressure massage head is in the first state, the second end of the elastic rim away from the pump mounting seat protrudes from the first side of the air pump assembly. The elastic rim has a second state, which is an outward-turned state. When the elastic rim is in the second state, the second end of the elastic rim is outward-turned to the second side of the air pump assembly, and the floating electrode is exposed to the first side. The elastic rim can switch from the second state to the first state by its own deformation or external force, so as to fit the part to be massaged and thus self-absorbed in the part to be massaged.

[0012] In which, the negative pressure massage head has a first state, which is a free state. When the negative pressure massage head is in the first state, the second end of the elastic rim protrudes away from the pump mounting seat from the first side of the air pump assembly, and at least part of the air pump assembly is arranged in the area surrounded by the elastic rim so that the center of gravity of the air pump assembly is close to the negative pressure port.

[0013] The maximum dimension of the air pump assembly in a preset direction is less than or equal to 1 / 2 of the maximum compression stroke of the elastic surround in the preset direction, wherein the preset direction is the direction from the first end to the second end.

[0014] Wherein, during the process of the negative pressure massage head switching from the first state to the second state, the range through which the fitting portion moves from the first side to the second side is a preset range, and the air pump assembly is located within the preset range.

[0015] Among them, the elastic surrounding edge has an inner wall surface and an outer wall surface arranged in opposite directions, the inner wall surface is used to form the floating cavity, and the elastic surrounding edge is provided with a groove at a position close to the negative pressure port, the groove is located on the side where the inner wall surface is located, and the groove is connected to the floating cavity to accommodate a part of the area to be massaged when negative pressure is formed in the floating cavity.

[0016] The fitting portion forms an extension surface along the direction from the outer wall surface toward the inner wall surface toward the negative pressure port, and the extension surface and the inner wall surface define the groove.

[0017] In which, the pump mounting seat includes a bottom shell facing away from the fitting portion, and the bottom shell is provided with a wire harness fixing hole, and the wire harness fixing hole is used for the wire harness to pass through so that the wire harness is electrically connected to the air pump, and the angle formed by the central axis of the wire harness fixing hole and the fitting portion is greater than or equal to 0° and less than or equal to 60°, so that the wire harness is parallel to the surface where the fitting portion is located or close to the side where the fitting portion is located under the constraint of the wire harness fixing hole.

[0018] Wherein, the bottom shell has a bottom point away from the fitting portion, and the wiring harness fixing hole is located between the bottom point and the fitting portion.

[0019] Wherein, the pump mounting seat includes a mounting bracket, the air pump is mounted on the mounting bracket, the second end of the elastic edge protrudes from one side of the mounting bracket, the first end of the elastic edge is connected to the other side of the mounting bracket away from the second end, and the elastic edge is formed with a bending portion at a position close to the mounting bracket, and the bending portion surrounds the outer periphery of the pump mounting seat so that the elastic edge can be flipped around the bending portion.

[0020] Wherein, the pump mounting base also includes a bottom shell, which is connected to the side of the mounting bracket facing away from the air pump, and the first end of the elastic surrounding edge is bent relative to the mounting bracket to the side of the mounting bracket facing away from the air pump, and the first end of the elastic surrounding edge is at least partially clamped between the bottom shell and the mounting bracket.

[0021] Wherein, the pump mounting seat includes a mounting bracket, the elastic surrounding edge is arranged around the outer periphery of the mounting bracket, the elastic surrounding edge and the mounting bracket are jointly arranged to form the floating cavity, the floating electrode and the mounting bracket are jointly arranged to form an inner chamber, the inner chamber is used for the floating electrode to float up and down, and the air pump is arranged in the inner chamber and avoids the path of the floating electrode floating up and down.

[0022] The pump mounting seat further comprises a resisting structure, which is arranged on a side of the air pump facing the floating electrode, and is used to stop the maximum downward floating stroke of the floating electrode so that the floating electrode fits the part to be massaged.

[0023] Wherein, the floating electrode includes a floating seat and an electrode massage piece, the floating seat includes a floating edge and a fixed part connected to each other, the fixed part is connected to one end of the floating edge away from the resisting structure, the electrode massage piece is installed on a side of the fixed part away from the resisting structure, and the resisting structure can resist the other side of the fixed part away from the electrode massage piece during the floating process of the floating electrode.

[0024] The electrode massage piece has an electrode surface for adhering to the part to be massaged, and the floating electrode also includes a heating element, which is arranged on the side of the electrode massage piece away from the electrode surface, and the side of the fixing part away from the electrode surface is flush with or protrudes from the side of the heating element away from the electrode massage piece.

[0025] Wherein, the floating seat also includes a clamping portion, the clamping portion is connected to an end of the floating edge away from the fixed portion, the resisting structure is provided with a matching portion that matches with the clamping portion, and the clamping portion is clamped with the matching portion.

[0026] Wherein, the air pump is a piezoelectric pump, and the size of the piezoelectric pump is smallest along the relative direction between the first end and the second end.

[0027] The floating electrode comprises a floating seat and an electrode massage member, one end of the floating seat is connected to the elastic surrounding edge or the pump mounting seat, and the other end of the floating seat is connected to the electrode massage member, so that the electrode massage member can float in the floating cavity;

[0028] The floating seat is arranged around the air pump to form an inner chamber, so that the air pump is located in the inner chamber, the floating seat separates the inner chamber from the floating cavity, and the surrounding wall of the floating seat is provided with a connecting hole, which connects the floating cavity and the inner chamber to form a negative pressure in the floating cavity through the air pump; a height difference is formed between the connecting hole and the bottom wall of the floating cavity to prevent the liquid sucked into the floating cavity from entering the inner chamber through the connecting hole.

[0029] Wherein, the air pump has an upper end face and a lower end face, the upper end face faces the negative pressure port, the distance from the upper end face to the fitting portion is a first spacing, the distance from the lower end face to the bottom point of the pump mounting seat is a second spacing, and the first spacing is smaller than the second spacing.

[0030] Among them, the distance from the fitting portion to the center of gravity of the air pump is the third distance, the distance from the fitting portion to the bottom point of the pump mounting seat is the fourth distance, and the ratio of the third distance to the fourth distance is less than or equal to 2 / 3.

[0031] In a second aspect, the present application also provides a massage device, which includes a negative pressure massage head.

[0032] In the negative pressure massage head provided in the present application, the first end of the elastic rim is connected to the pump mounting seat, and is jointly formed with the pump mounting seat to form a floating cavity, and a floating electrode for massaging a part to be massaged is arranged in the floating cavity. The second end of the elastic rim has a fitting portion, and the fitting portion is formed to form a negative pressure port connected to the floating cavity. When the negative pressure massage head massages the part to be massaged (such as the neck) through the electrode surface of the floating electrode, the fitting portion of the elastic rim can be adsorbed on the part to be massaged through the negative pressure port. Since the fitting portion is closely attached to the part to be massaged, the floating cavity forms a closed space. It can be understood that at this time, the electrode surface located in the floating cavity will not be touched by foreign objects (such as the collar on the neck). In other words, the elastic rim separates foreign objects from the electrode surface and plays a role of isolation and protection, preventing foreign objects from contacting the electrode surface and causing poor contact, thereby causing a tingling sensation in the part to be massaged. In addition, since the elastic surrounding edge has the ability to deform along the axial direction and circumferential direction of the negative pressure port, when the negative pressure massage head is adsorbed on the part to be massaged, the rotation or twisting of the part to be massaged will generate a pulling force on the elastic surrounding edge in the front-to-back direction and the left-to-right direction, so that the elastic surrounding edge can be adaptively deformed, and the fitting part of the elastic surrounding edge can still fit with the part to be massaged, and can better fit with the part to be massaged to form a closed space, so as to stably adsorb on the part to be massaged. Therefore, the negative pressure massage head provided by the present application can better prevent the part to be massaged from tingling and ensure that it is stably adsorbed on the part to be massaged during the massage process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the implementation will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 This is an exploded view of the massage device provided in an embodiment of the present application.

[0035] Figure 2 for Figure 1 Assembly drawing of the massage device shown.

[0036] Figure 3 for Figure 2 A schematic diagram of the massage device shown in another perspective.

[0037] Figure 4 for Figure 3 Schematic diagram of the negative pressure massage head in the massage device shown.

[0038] Figure 5 for Figure 4 An exploded view of the negative pressure massage head is shown.

[0039] Figure 6 for Figure 4 The negative pressure massage head shown in the first state is a cross-sectional view along line AA in one embodiment.

[0040] Figure 7 for Figure 6 The cross-sectional view of the negative pressure massage head shown is in the second state.

[0041] Figure 8 This is a schematic diagram of the negative pressure massage head provided in an embodiment of the present application being adsorbed on the area to be massaged.

[0042] Fig. 9 for Figure 6 Schematic diagram of the air pump assembly in the negative pressure massage head shown.

[0043] Fig.10 for Fig. 9 Exploded view of the air pump assembly shown.

[0044] Fig.11 A schematic diagram of a negative pressure massage head in which a wiring harness fixing hole is inclined relative to a fitting portion, as provided in an embodiment of the present application.

[0045] Fig.12 for Figure 6 Schematic diagram of floating electrodes in the negative pressure massage head shown.

[0046] Fig.13 for Figure 6A schematic diagram of the coordination of the floating electrode and the resisting structure in the negative pressure massage head is shown.

[0047] Fig.14 for Figure 4 The negative pressure massage head in the first state is shown in a cross-sectional view along line AA in another embodiment.

[0048] Description of Figure Numbers:

[0049] Massage device 100; negative pressure massage head 10; wearing mechanism 20; harness 30; air pump assembly 110; floating electrode 120; elastic surrounding edge 130; massage module 210; elastic clamp arm 220; receiving member 230; air pump 111; pump mounting seat 112; floating seat 121; electrode massage member 122; heating member 123; bending portion 131; bottom shell 1121; mounting bracket 1122; resisting structure 1123; floating surrounding edge 1211; fixing portion 1212; clamping portion 1213; matching portion 1123a ; Floating cavity Q; inner chamber Q1; outer chamber Q2; first end D1; second end D2; first side C1; second side C2; ​​near-skin side C3; dorsal skin side C4; accommodating space K1; negative pressure port K2; harness fixing hole K3; connecting hole K4; groove K5; massage surface M1; fitting part M2; inner wall surface M3; outer wall surface M4; electrode surface M5; upper end surface M6; lower end surface M7; first spacing H1; second spacing H2; third spacing H3; fourth spacing H4; preset direction F; center axis Y; bottom point X; angle α. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0051] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0052] Please refer to Figures 1 to 3 The present application provides a massage device 100, which can be, but is not limited to, a cervical massager, a waist massager, a back massager, a foot massager, a leg massager, a shoulder massager, etc.

[0053] The massage device 100 includes a wearing mechanism 20 and a negative pressure massage head 10 described in any of the following embodiments, and the negative pressure massage head 10 is connected to the wearing mechanism 20. The wearing mechanism 20 has the functions of providing electric energy to the negative pressure massage head 10, controlling the negative pressure massage head 10 to perform massage, and the like. The negative pressure massage head 10 is used to be adsorbed on the part to be massaged by negative pressure, and output one or more of electric energy, thermal energy, mechanical energy, etc. to the part to be massaged, so as to achieve the effects of promoting blood circulation, relieving fatigue, relaxing the meridians, and dredge the collaterals, etc. The part to be massaged is a human body, which can be, but is not limited to, the head, neck, arms, legs, waist, back, etc. of the human body.

[0054] It should be noted that one massage device 100 may be provided with one or more negative pressure massage heads 10, and the specific number may be, but is not limited to, 1, 2, 3, etc. When a plurality of negative pressure massage heads 10 are provided, the specifications and structures of each negative pressure massage head 10 may be the same or different.

[0055] Optionally, the massage device 100 further includes a harness 30, and opposite ends of the harness 30 are respectively connected to the wearing mechanism 20 and the negative pressure massage head 10, so that the negative pressure massage head 10 is electrically connected to the wearing mechanism 20. The harness 30 may have a certain flexibility, so that the massage head can move in the space around the wearing mechanism 20 by means of the flexible harness 30, and massage the part to be massaged within a certain range from the wearing mechanism 20, so that the negative pressure massage head 10 can flexibly massage multiple positions.

[0056] In one embodiment, the wiring harness 30 can be fixedly connected to the wearing mechanism 20, that is, the wiring harness 30 and the wearing mechanism 20 are inseparable. In another embodiment, the wiring harness 30 can also be fixedly connected to the negative pressure massage head 10, that is, the wiring harness 30 and the negative pressure massage head 10 are inseparable. In yet another embodiment, the wiring harness 30 is simultaneously and inseparablely connected to the wearing mechanism 20 and the negative pressure massage head 10. In yet another embodiment, the wiring harness 30 is simultaneously and detachably connected to the wearing mechanism 20 and the negative pressure massage head 10, so that it is convenient to disassemble and repair, or replace the negative pressure massage head 10 of different specifications. The detachable connection method can be realized by a connector. Taking the negative pressure massage head 10 as an example, a female connector (i.e., a socket) is provided on the negative pressure massage head 10, and a male connector (i.e., a plug) is provided on the wiring harness 30. The male connector can be inserted into the female connector to achieve electrical connection.

[0057] Optionally, the wearing mechanism 20 includes a massage module 210 and two elastic clamping arms 220, the two elastic clamping arms 220 are respectively bent and connected to the opposite ends of the massage module 210, and the massage module 210 and the two elastic clamping arms 220 together form a U-shaped structure. Among them, the two elastic clamping arms 220 have a certain elastic force, so that the two elastic clamping arms 220 can be deformed to a certain extent, and have the ability to restore deformation. When the massage device 100 is worn on the part to be massaged, the two elastic clamping arms 220 can be deformed in a direction away from each other by an external force, so that enough space is opened between the two elastic clamping arms 220 to accommodate the part to be massaged (such as the neck). When the part to be massaged enters between the two elastic clamping arms 220, the cancellation of the external force acting on the two elastic clamping arms 220 can make the two elastic clamping arms 220 restore the deformation in a direction close to each other, so as to use the two elastic clamping arms 220 to clamp the part to be massaged.

[0058] The massage module 210 has a skin-near side C3 and a skin-back side C4 that are opposite to each other. When the massage device 100 is worn on a part to be massaged, the side of the massage module 210 close to the part to be massaged is the skin-near side C3, and the side of the massage module 210 away from the part to be massaged is the skin-back side C4.

[0059] The massage surface M1 of the massage module 210 is exposed from the skin-proximal side C3 of the massage module 210. The massage module 210 is used to output one or more of electrical energy, thermal energy, light energy, mechanical energy, etc. to the massaged part to massage the massaged part, thereby achieving the effects of promoting blood circulation, relieving fatigue, relaxing the meridians, etc.

[0060] Optionally, the wearing mechanism 20 may further include a receiving member 230, and the receiving member 230 is disposed on the back skin side C4 of the massage module 210. A receiving space K1 is provided on the side of the receiving member 230 away from the massage module 210, and the receiving space K1 can be detachably connected to the negative pressure massage head 10. When the massage device 100 is not needed, the negative pressure massage head 10 can be placed in the receiving space K1, and there is no need to provide an additional receiving device for the negative pressure massage head 10. In addition, the receiving space K1 is provided on the side of the receiving member 230 away from the massage module 210, which will not occupy the space on the near skin side C3. The massage module 210 can thus configure a larger massage surface M1 on the near skin side C3 to increase the contact area between the massage surface M1 and the human body.

[0061] Please refer to Figures 4 to 7 The present application also provides a negative pressure massage head 10 , which includes: an air pump assembly 110 , a floating electrode 120 , and an elastic surrounding edge 130 .

[0062] The air pump assembly 110 includes an air pump 111 and a pump mounting seat 112 , and the air pump 111 is mounted on the pump mounting seat 112 .

[0063] The floating electrode 120 can be arranged to float relative to the pump mounting seat 112 , and the floating electrode 120 has an electrode surface M5 , and the electrode surface M5 is used to massage the massaged part.

[0064] Wherein, the elastic surrounding edge 130 is arranged around the floating electrode 120. The elastic surrounding edge 130 and the pump mounting seat 112 together form a floating cavity Q, and the floating cavity Q is connected to the air pump 111. The electrode surface M5 of the floating electrode 120 is located in the floating cavity Q. The elastic surrounding edge 130 has a first end D1 and a second end D2 that are opposite to each other. The first end D1 is connected to the pump mounting seat 112, and the second end D2 has a fitting portion M2. The fitting portion M2 is arranged to form a negative pressure port K2, and the negative pressure port K2 is connected to the floating cavity Q. The fitting portion M2 is suitable for fitting with the part to be massaged to form a closure for the floating cavity Q. The elastic surrounding edge 130 has the ability to deform along the axial direction of the negative pressure port K2 and the circumferential direction of the negative pressure port K2 to adapt to the rotation of the part to be massaged.

[0065] In this embodiment, the first end D1 of the elastic surrounding edge 130 is connected to the pump mounting seat 112, and together with the pump mounting seat 112, a floating cavity Q is formed, and a floating electrode 120 for massaging the part to be massaged is disposed in the floating cavity Q. The second end D2 of the elastic surrounding edge 130 has a fitting portion M2, and the fitting portion M2 is formed to form a negative pressure port K2 connected to the floating cavity Q. When the negative pressure massage head 10 massages the area to be massaged (such as the neck) through the electrode surface M5 of the floating electrode 120, the fitting portion M2 of the elastic rim 130 can be adsorbed on the area to be massaged through the negative pressure port K2. Since the fitting portion M2 is in close contact with the area to be massaged, the floating cavity Q forms a closed space. It can be understood that at this time, the electrode surface M5 located in the floating cavity Q will not be touched by foreign objects (such as the collar on the neck). In other words, the elastic rim 130 isolates foreign objects from the electrode surface M5 and plays a role of isolation and protection, thereby preventing foreign objects from contacting the electrode surface M5 and causing poor contact, thereby causing a tingling sensation in the area to be massaged. In addition, since the elastic surrounding edge 130 has the ability to deform along the axial and circumferential directions of the negative pressure port K2, when the negative pressure massage head 10 is adsorbed on the part to be massaged, the rotation or twisting of the part to be massaged will generate a pulling force on the elastic surrounding edge 130 in the front-to-back direction and the left-to-right direction, so that the elastic surrounding edge 130 can be adaptively deformed, and the fitting portion M2 of the elastic surrounding edge 130 can still fit with the part to be massaged, and can better fit with the part to be massaged to form a closed space, so as to stably adsorb on the part to be massaged. Therefore, the negative pressure massage head 10 provided by the present application can better prevent the part to be massaged from tingling and ensure that it is stably adsorbed on the part to be massaged during the massage process.

[0066] Please refer to Figures 4 to 7 Furthermore, the maximum compression stroke of the elastic surrounding edge 130 is greater than the maximum compression stroke of the floating electrode 120, and the height of the electrode surface M5 protruding from the pump mounting seat 112 is lower than the height of the fitting portion M2 protruding from the pump mounting seat 112. The floating electrode 120 is configured such that after the elastic surrounding edge 130 is compressed to a preset stroke, when the elastic surrounding edge 130 continues to be compressed, the floating electrode 120 is compressed along with the elastic surrounding edge 130, so that the air in the floating cavity Q is discharged to form a self-adsorption positioning.

[0067] In this embodiment, when the negative pressure massage head 10 is in a free state, the distance between the fitting portion M2 and the pump mounting seat 112 is greater than the distance between the electrode surface M5 and the pump mounting seat 112, or in other words, in the direction from the first end D1 to the second end D2, the fitting portion M2 protrudes from the electrode surface M5, so that at the initial moment of attaching the negative pressure massage head 10 to the part to be massaged, the fitting portion M2 basically contacts the skin of the part to be massaged before the electrode surface M5. Subsequently, the user can apply a pressing force to the negative pressure massage head 10 so that the elastic surrounding edge 130 is initially compressed in the axial direction, and the air in the floating cavity Q is initially discharged. In the process of the initial compression of the elastic surrounding edge 130, since the fitting portion M2 protrudes from the electrode surface M5, the floating electrode 120 will not hinder the process of the elastic surrounding edge 130 compressing and squeezing the air in the floating cavity Q. When the distance between the part to be fitted M2 and the pump mounting seat 112 is substantially the same as the distance between the electrode surface M5 and the pump mounting seat 112, the floating electrode 120 is compressed along with the elastic surrounding edge 130, and the air in the floating cavity Q is further discharged, so that the negative pressure massage head 10 is self-adsorbed and positioned at the part to be massaged, and the floating electrode 120 can also be adaptively fitted to the part to be massaged, and the floating electrode 120 can still be further compressed without excessively hindering the further compression of the elastic surrounding edge 130.

[0068] Please refer to Figures 4 to 7 , further, the outer diameter of the elastic surrounding edge 130 gradually decreases in the direction from the second end D2 to the first end D1, so as to form a reduction structure at the connection between the first end D1 and the pump mounting seat 112. Wherein, the negative pressure massage head 10 is configured such that when subjected to a pressing force, the second end D2 forms an outward-turned state based on the reduction structure, and the outer edge of the fitting portion M2 is supported by the inner edge of the fitting portion M2 and deforms outward relative to the skin of the part to be massaged to form a gap, so that the air in the negative pressure cavity can be discharged through the gap. The negative pressure massage head 10 is configured such that when the pressing force is canceled, the outer edge of the fitting portion M2 returns to fit with the skin of the part to be massaged to form a self-adsorption positioning.

[0069] In the present embodiment, the outer diameter of the elastic edge 130 gradually decreases in the direction from the second end D2 to the first end D1, so that the negative pressure port K2 located at the second end D2 has a larger adsorption diameter, and forms a smaller size at the connection with the pump mounting seat 112, so that the first end D1 forms a reduction structure, so that when the user applies pressing force to the negative pressure massage head 10 to exhaust (for example, the user presses the pump mounting seat 112), the pump mounting seat 112 moves downward toward the negative pressure port K2 based on the reduction structure, and the elastic edge 130 is compressed. Therefore, the second end D2 will be turned outward relative to the negative pressure port K2 based on the reduction structure. Therefore, the fitting portion M2 will partially warp outward, so that the outer edge of the fitting portion M2 is warped outward relative to the massaged part to form a gap, so that when exhausting, the fitting portion M2 and the massaged part are less fitted, which is conducive to the rapid discharge of air. After the pressing force is cancelled, the fitting portion M2 restores its deformation and fits the massaged part, thereby quickly forming a seal and finally forming a self-adsorption positioning effect.

[0070] The negative pressure massage head 10 mentioned above is further described below.

[0071] The negative pressure massage head 10 includes: an air pump assembly 110, a floating electrode 120, and an elastic surrounding edge 130. The air pump assembly 110 includes an air pump 111 and a pump mounting seat 112, and the air pump 111 is mounted on the pump mounting seat 112. The floating electrode 120 can be arranged in a floating manner relative to the pump mounting seat 112, and the floating electrode 120 is used to massage the massaged part. The elastic surrounding edge 130 is arranged around the floating electrode 120. The elastic surrounding edge 130 has a first end D1 and a second end D2 that are opposite to each other. The first end D1 is connected to the pump mounting seat 112. The second end D2 has a fitting portion M2. The fitting portion M2 is arranged to form a negative pressure port K2. The negative pressure port K2 is used to communicate with the air pump 111 to be adsorbed on the massaged part.

[0072] The negative pressure massage head 10 has a first state (such as Figure 6 as shown) and the second state (as Figure 7As shown). Wherein, the first state is the free state of the negative pressure massage head 10, and the second state is the everted state of the negative pressure massage head 10. When the negative pressure massage head 10 is in the first state, the second end D2 of the elastic rim 130 away from the pump mounting seat 112 protrudes from the first side C1 of the air pump assembly 110, and the elastic rim 130 and the pump mounting seat 112 together enclose a floating cavity Q, and the floating cavity Q is connected to the negative pressure port K2, and the floating electrode 120 is at least partially located in the floating cavity Q. When the elastic rim 130 is in the second state, the second end D2 of the elastic rim 130 is everted to the second side C2 of the air pump assembly 110, and the floating electrode 120 is exposed to the first side C1. The elastic rim 130 can switch from the second state to the first state by its own deformation or external force, so as to fit with the part to be massaged and thus self-absorb on the part to be massaged.

[0073] Specifically, the negative pressure massage head 10 provided in the present application refers to a device that can be adsorbed on the part to be massaged through negative pressure and massage the part to be massaged. Among them, negative pressure refers to a gas pressure state lower than normal pressure (that is, one atmospheric pressure commonly referred to). In other words, the negative pressure massage head 10 can form a negative pressure effect. Under the action of the external atmospheric pressure, the negative pressure massage head 10 will be "pressed" on the part to be massaged, that is, the negative pressure massage head 10 appears to be "adsorbed" on the part to be massaged. From the overall structure point of view, the negative pressure massage head 10 provided in the present application can be regarded as consisting of three parts: an air pump assembly 110, a floating electrode 120, and an elastic surrounding edge 130, which are described in detail below.

[0074] The elastic surrounding edge 130 can be regarded as a suction cup, which can be adsorbed on the part to be massaged by negative pressure. The elastic surrounding edge 130 is soft in texture, and its material can be but not limited to rubber, silicone, etc. When subjected to external force, the elastic surrounding edge 130 can produce deformations such as bending, twisting, and compression. When the external force is removed or under the action of external force, the elastic surrounding edge 130 can return to its original shape. The first end D1 of the elastic surrounding edge 130 is connected to the periphery of the air pump assembly 110 in a surrounding manner, and the two are thus jointly surrounded to form a floating cavity Q with a certain spatial volume size. The end face of the second end D2 of the elastic surrounding edge 130 is a fitting portion M2 for fitting the part to be massaged. The fitting portion M2 is surrounded and surrounded to form a negative pressure port K2, which is connected to the floating cavity Q, or in other words, the negative pressure port K2 is an opening formed by the floating cavity Q on the elastic surrounding edge 130.

[0075] The air pump 111 can extract the air in the floating cavity Q, so that the floating cavity Q is in a negative pressure state. When the floating cavity Q is in a negative pressure state, it can be adsorbed on the massaged part through the negative pressure port K2. The pump mounting seat 112 is a mounting structure for carrying and protecting the air pump 111, and together with the elastic surrounding edge 130, it forms the floating cavity Q. The connection between the air pump 111 and the pump mounting seat 112 can be a detachable connection or a non-detachable connection.

[0076] The floating electrode 120 is arranged in a floating manner in the floating cavity Q and is located at the first side C1 of the air pump assembly 110. The floating electrode 120 can be connected to the air pump assembly 110, can be connected to the elastic surrounding edge 130, or can be connected to the air pump assembly 110 and the elastic surrounding edge 130 at the same time. The "floating" means that the floating electrode 120 can move along a preset direction F in the floating cavity Q. The preset direction F refers to the relative direction of the first end D1 and the second end D2 of the elastic surrounding edge 130, or in other words, the relative direction of the first side C1 and the second side C2 of the air pump assembly 110. The floating electrode group can use electric current to stimulate muscles so that the muscles contract and relax periodically, achieving an effect similar to massage.

[0077] Furthermore, since the first end D1 of the elastic edge 130 is connected to the air pump assembly 110 and fixed, the second end D2 is free, and the elastic edge 130 can be elastically deformed, the elastic edge 130 can be "turned outward" or "flipped" through the second end D2, so that the negative pressure massage head 10 can be in the first state and the second state.

[0078] From a static perspective, when the negative pressure massage head 10 is in the first state, the second end D2 of the elastic edge 130 is located on the first side C1 of the air pump assembly 110; when the negative pressure massage head 10 is in the second state, the second end D2 of the elastic edge 130 is located on the second side C2 of the air pump assembly 110.

[0079] From a dynamic perspective, when the negative pressure massage head 10 switches from the first state to the second state, the second end D2 of the elastic rim 130 "turns outward" from the first side C1 of the air pump assembly 110 to the second side C2 of the air pump assembly 110, the floating electrode 120 is exposed to the outside from the floating cavity Q, and the elastic rim 130 surrounds the outer periphery of the air pump assembly 110. When the negative pressure massage head 10 switches from the second state to the first state, the second end D2 of the elastic rim 130 "turns inward" from the second side C2 of the air pump assembly 110 to the first side C1 of the air pump assembly 110, and the elastic rim 130 surrounds the outer periphery of the floating electrode 120, that is, the floating electrode 120 returns to the floating cavity Q.

[0080] It should be noted that the above-mentioned "external rotation" and "inner rotation" are two opposite turning processes of the elastic surrounding edge 130, or "external rotation" and "inner rotation" refer to the process of exchanging the inside and outside of the elastic surrounding edge 130. Specifically, the elastic surrounding edge 130 has an outer wall surface M4 and an inner wall surface M3 that are arranged opposite to each other. When the negative pressure massage head 10 is in the first state, the outer wall surface M4 is exposed to the outside world, and the inner wall surface M3 is away from the outside world. At this time, the inner wall surface M3 faces the floating electrode 120 and surrounds the outer periphery of the floating electrode 120. When the negative pressure massage head 10 is in the second state, the inner wall surface M3 is exposed to the outside world, and the outer wall surface M4 is away from the outside world. At this time, the outer wall surface M4 faces the air pump assembly 110 and surrounds the outer periphery of the air pump assembly 110.

[0081] It can be understood that the elastic edge 130 can be flipped between the first side C1 and the second side C2 of the air pump assembly 110, which means that the elastic edge 130 has a larger size in the preset direction F. The elastic edge 130 can thus enclose a larger floating cavity Q. A larger floating cavity Q means a larger amount of air can be discharged, thereby making it easier for the floating cavity Q to form a negative pressure effect.

[0082] When the negative pressure massage head 10 needs to be adsorbed on the part to be massaged, the second end D2 of the elastic edge 130 can be first turned outward from the first side C1 of the air pump assembly 110 to the second side C2, so that the negative pressure massage head 10 is changed from the first state to the second state, and then the negative pressure massage head 10 is aligned with the part to be massaged. Finally, the elastic edge 130 is deformed by itself, or the user applies force to flip the second end D2 of the elastic edge 130 from the second side C2 of the air pump assembly 110 to the first side C1, so that the negative pressure massage head 10 is changed from the second state to the first state, and the fitting portion M2 of the elastic edge 130 is fitted on the massage part. At this time, the volume of air entering the floating cavity Q is less than the maximum volume of the floating cavity Q (that is, the volume of the floating cavity Q corresponding to the natural state of the negative pressure massage head 10). The negative pressure massage head 10 thus initially forms a negative pressure effect with the part to be massaged, and is adsorbed on the part to be massaged through the negative pressure port K2. In the above operation process, the negative pressure effect can be initially formed without the intervention of the air pump 111, so that the negative pressure massage head 10 can be quickly self-primed and positioned at the massaged part, and it is not easy to fall off. After the negative pressure massage head 10 is initially self-primed at the massaged part, the air pump 111 is used to extract the air in the floating cavity Q, which can further reduce the air pressure in the floating cavity Q, so that the negative pressure massage head 10 is more stably adsorbed on the massaged part.

[0083] It should be noted that the first state includes a first sub-state of adsorption and a second sub-state of non-adsorption, wherein the first sub-state of adsorption refers to the state in which the negative pressure massage head 10 is adsorbed on the part to be massaged, and the second sub-state of non-adsorption refers to the state in which the negative pressure massage head 10 is not adsorbed on the part to be massaged and is not subjected to any external force (also referred to as a natural state). Furthermore, when the negative pressure massage head 10 is in the first sub-state, the first dimension of the elastic surrounding edge 130 in the preset direction F is smaller than the second dimension of the elastic surrounding edge 130 in the preset direction F when the negative pressure massage head 10 is in the second sub-state. Only when this condition is met can at least part of the air in the floating cavity Q be discharged to the outside, that is, the elastic surrounding edge 130 needs to be compressed in the preset direction F to form a negative pressure effect.

[0084] Furthermore, in addition to the above-mentioned method of achieving self-priming by eversion, a direct pressing method can also be used. Specifically, align the negative pressure massage head 10 in the first state with the part to be massaged, and then press the negative pressure massage head 10 directly on the part to be massaged, so that the fitting portion M2 of the elastic surrounding edge 130 fits with the part to be massaged. During this process, the elastic surrounding edge 130 will be compressed and deformed in the preset direction F. This deformation will cause at least part of the air in the floating cavity Q to be discharged to the outside, and the floating cavity Q will initially form a negative pressure effect, and will be adsorbed on the part to be massaged through the negative pressure port K2. The negative pressure massage head 10 thus achieves self-priming positioning at the part to be massaged. Furthermore, after the self-priming positioning is successful, the air pump 111 is subsequently used to extract the air in the floating cavity Q, which can further reduce the air pressure in the floating cavity Q, so that the negative pressure massage head 10 can be more stably adsorbed on the part to be massaged.

[0085] In summary, the negative pressure massage head 10 provided in the present application includes an elastic rim 130, an air pump assembly 110, and a floating electrode 120. The first end D1 of the elastic rim 130 is connected to the pump mounting seat 112, and the second end D2 has a fitting portion M2, and the fitting portion M2 is arranged to form a negative pressure port K2. The elastic rim 130 can be turned outward, so that the negative pressure massage head 10 can present a first state and a second state. When the negative pressure massage head 10 is in the first state, the second end D2 of the elastic rim 130 is located on the first side C1 of the air pump assembly 110, and the elastic rim 130 and the air pump assembly 110 are jointly arranged to form a floating cavity Q connected to the negative pressure port K2, and the floating electrode 120 is arranged in the floating cavity Q; when the negative pressure massage head 10 is in the second state, the second end D2 of the elastic rim 130 is located on the second side C2 of the air pump assembly 110, and the negative pressure massage head 10 is exposed to the outside world. When the negative pressure massage head 10 needs to be adsorbed on the part to be massaged, the second end D2 of the elastic rim 130 can be turned outward from the first side C1 of the air pump assembly 110 to the second side C2, so that the negative pressure massage head 10 changes from the first state to the second state, and then the negative pressure massage head 10 is aligned with the part to be massaged, and finally the elastic rim 130 is deformed by itself, or the user applies a force to turn the second end D2 of the elastic rim 130 from the second side C2 of the air pump assembly 110 to the first side C1, so that the negative pressure massage head 10 changes from the second state to the first state, and the fitting part M2 of the elastic rim 130 fits on the massage part, so that the negative pressure massage head 10 forms a preliminary negative pressure effect with the part to be massaged, and is adsorbed on the part to be massaged through the negative pressure port K2. In the above operation process, the negative pressure effect can be initially formed without the intervention of the air pump 111, so that the negative pressure massage head 10 can be quickly and flexibly self-primed and positioned at the part to be massaged, and is not easy to fall off. After the negative pressure massage head 10 is initially self-absorbed on the massaged area, the air pump 111 can be used to extract the air in the floating chamber Q to further reduce the air pressure in the floating chamber Q, so that the negative pressure massage head 10 can be more stably adsorbed on the massaged area.

[0086] Please combine Figures 4 to 7 Reference Figure 8 When the negative pressure massage head 10 is in the first state, the second end D2 of the elastic edge 130 away from the pump mounting seat 112 protrudes from the first side C1 of the air pump assembly 110, and at least part of the air pump assembly 110 is arranged in the area surrounded by the elastic edge 130, so as to form a negative pressure at the negative pressure port K2 to compress the elastic edge 130, thereby making the air pump assembly 110 approach the negative pressure port K2, that is, to make the center of gravity of the air pump assembly 110 approach the negative pressure port K2.

[0087] Specifically, the elastic surrounding edge 130 can be roughly regarded as an annular structure, wherein, for example, at least part of the air pump assembly 110 is arranged in the area surrounded by the elastic surrounding edge 130 along a preset direction F, and it has a first end D1 and a second end D2 in the preset direction F, wherein the preset direction F is the direction from the first end D1 to the second end D2. The space area surrounded by the first end D1 and the second end D2 of the elastic surrounding edge 130 is the above-mentioned "area surrounded by the elastic surrounding edge 130". Further, the above-mentioned "at least part of the air pump assembly 110 is arranged in the area surrounded by the elastic surrounding edge 130 along the preset direction F" means "at least part of the air pump assembly 110 is located between the first end D1 and the second end D2 of the elastic surrounding edge 130". When the negative pressure massage head 10 is adsorbed on the part to be massaged, the elastic rim 130 will be compressed, that is, the size of the elastic rim 130 in the preset direction F will be reduced, so that the center of gravity of the air pump assembly 110 is closer to the negative pressure port K2, or in other words, the center of gravity of the air pump assembly 110 is closer to the part to be massaged, thereby reducing the length of the lever arm corresponding to the self-gravity of the air pump assembly 110 (the distance from the center of gravity of the air pump assembly 110 to the part to be massaged), thereby reducing the gravity moment brought by the air pump assembly 110 (gravity moment = lever arm length × gravity), thereby reducing the possibility of the negative pressure massage head 10 falling up and down and detaching from the part to be massaged. In other words, this ensures that the negative pressure massage head 10 can be more stably adsorbed on the part to be massaged.

[0088] Specifically, the negative pressure massage head 10 itself has a certain weight, especially the air pump assembly 110. The distance from the center of gravity of the negative pressure massage head 10 to the part to be massaged is the arm length L. The product of the gravity G of the negative pressure massage head 10 and the arm length L is the gravity moment Mg on the negative pressure massage head 10. If the gravity moment Mg is too large, the negative pressure massage head 10 will fall off from the part to be massaged. In this embodiment, at least part of the air pump assembly 110 is arranged in the area surrounded by the elastic surrounding edge 130 along the preset direction F, so that the center of gravity of the air pump assembly 110 can be closer to the part to be massaged, and thus the center of gravity of the entire negative pressure massage head 10 will also be closer to the part to be massaged. Although the gravity G on the negative pressure massage head 10 remains unchanged, the arm length L will be reduced, and the gravity moment Mg will be reduced accordingly, so that the possibility of the negative pressure massage head 10 falling off from the part to be massaged can be reduced.

[0089] Please refer to Figures 4 to 7 The maximum dimension of the air pump assembly 110 in the preset direction F is less than or equal to 1 / 2 of the maximum compression stroke of the elastic surrounding edge 130 in the preset direction F.

[0090] Specifically, the "maximum compression stroke of the elastic rim 130 in the preset direction F" refers to "the compression amount of the elastic rim 130 in the preset direction F when the negative pressure massage head 10 changes from the second sub-state to the first sub-state", wherein the second sub-state and the first sub-state refer to the previous description. In this embodiment, the maximum size of the air pump assembly 110 in the preset direction F is limited to be less than or equal to 1 / 2 of the maximum compression stroke of the elastic rim 130 in the preset direction F, so that the thickness of the air pump assembly 110 in the preset direction F can be limited to not be too large, so as to avoid the excessive thickness causing its center of gravity to be away from the negative pressure port K2 along the preset direction F, thereby reducing the possibility of the negative pressure massage head 10 falling relative to the human body. In addition, the above-mentioned size limitation can also prevent the thickness of the air pump assembly 110 in the preset direction F from being too large and hindering the compression process of the elastic surround 130. It can be understood that if the compression stroke of the elastic surround 130 is too small, the air discharge volume of the floating cavity Q will be small, and the negative pressure effect will be poor, which is not conducive to adsorption. On the contrary, after limiting the size of the air pump assembly 110, it can be ensured that the elastic surround 130 has a sufficient compression stroke, thereby achieving a more stable negative pressure adsorption effect.

[0091] Please refer to Figures 4 to 7 In the process of switching the negative pressure massage head 10 from the first state to the second state, the range through which the fitting portion M2 moves from the first side C1 to the second side C2 is a preset range, and the air pump assembly 110 is located within the preset range, that is, the air pump assembly 110 is arranged between the two extreme positions to which the fitting portion M2 can move along the preset direction F. In this way, the air pump assembly 110 is appropriately arranged in the preset direction F of the negative pressure massage head 10, and will not be too far away from the negative pressure port K2, so that the air pump assembly 110 can be prevented from being too far away from the negative pressure port K2 and causing the negative pressure massage head 10 to fall off the part to be massaged, and the elastic surrounding edge 130 can also have a larger deformation range, which is not only conducive to the elastic surrounding edge 130 being able to deform and adapt to different parts to be massaged.

[0092] Please refer to Figure 6 The elastic surrounding edge 130 has an inner wall surface M3 and an outer wall surface M4 disposed opposite to each other. The inner wall surface M3 is used to form the floating cavity Q. The elastic surrounding edge 130 is provided with a groove K5 at a position close to the negative pressure port K2. The groove K5 is located on the side where the inner wall surface M3 is located. The groove K5 is connected to the floating cavity Q to accommodate a portion of the area to be massaged when the floating cavity Q forms a negative pressure.

[0093] Specifically, when the negative pressure massage head 10 is adsorbed on the part to be massaged (taking the neck as an example), part of the neck skin will enter the floating cavity Q from the negative pressure port K2. Since the groove K5 is arranged on the side where the inner wall surface M3 is located, the neck skin can also be embedded in the groove K5, that is, at least part of the skin is hooked by the groove K5, so that the negative pressure massage head 10 is not easy to fall off the neck. The groove K5 can be formed into a ring shape along the inner wall surface M3, so that the skin can be hooked in the circumferential direction, thereby further improving the negative pressure adsorption stability of the negative pressure massage head 10.

[0094] Please refer to Figure 6 , the fitting portion M2 forms an extension surface toward the negative pressure port K2 along the direction from the outer wall surface M4 toward the inner wall surface M3, and the extension surface and the inner wall surface M3 define the groove K5. In other words, the fitting portion M2 extends in the direction of the central axis of the negative pressure port K2, which is conducive to increasing the area of ​​the fitting portion M2, so that the effective fitting area between the fitting portion M2 and the massaged part is increased, thereby better isolating the floating cavity Q from the outside, and also facilitating the extension of the fitting portion M2 directly to form the groove K5 with the inner wall surface M3, simplifying the formation method of the groove K5.

[0095] Please refer to Figure 6 , Fig. 9 , Fig.10 and Fig.11 The pump mounting seat 112 includes a bottom shell 1121 away from the fitting portion M2. The bottom shell 1121 is provided with a harness fixing hole K3, and the harness fixing hole K3 is used to provide a harness 30 (see Figures 1 to 3 ) through, so that the wiring harness 30 is electrically connected to the air pump 111. The angle α formed by the central axis Y of the wiring harness fixing hole K3 and the fitting portion M2 is greater than or equal to 0° and less than or equal to 60°, so that the wiring harness 30 is parallel to the surface where the fitting portion M2 is located or close to the side where the fitting portion M2 is located under the constraint of the wiring harness fixing hole K3. The angle α can be, but is not limited to, 0°, 5°, 10°, 15°, 20°, 23°, 25°, 30°, 35°, 38°, 40°, 45°, 50°, 55°, 57°, 60°.

[0096] Specifically, when the user uses the massage device 100, it is inevitable that the user will touch the wire harness 30, and the wire harness 30 will pull the negative pressure massage head 10. If the pulling force of the wire harness 30 on the negative pressure massage head 10 is in the direction from the first side C1 to the second side C2 (hereinafter referred to as the falling direction), or the component of the pulling force in the falling direction is greater than zero, then the negative pressure massage head 10 has a tendency to separate from the massaged part. When the force applied to the negative pressure massage head 10 in the falling direction exceeds the negative pressure adsorption force, the negative pressure massage head 10 will fall off from the massaged part.

[0097] Based on this, in this embodiment, the angle α formed by the central axis Y of the harness fixing hole K3 and the fitting portion M2 is set to be greater than or equal to 0° and less than or equal to 60°. It can be understood that the extension direction of the central axis Y of the harness fixing hole K3 is roughly the extension direction of the harness 30, and further, the direction of the pulling effect of the harness 30 on the negative pressure massage head 10 is also the extension direction of the central axis Y of the harness fixing hole K3. When the angle α is equal to 0° (such as Figure 6 As shown), it means that the central axis Y of the harness fixing hole K3 is parallel to the fitting portion M2, and the pulling force of the harness 30 in the falling direction is zero. Fig.11 As shown in FIG. 1 , the pulling force of the harness 30 in the direction of shedding is a negative force, that is, the negative pressure massage head 10 will be pulled by the harness 30 in the opposite direction of the shedding direction (that is, the direction from the second side C2 to the first side C1). It can be seen that when the angle α is limited to a range greater than or equal to 0° and less than or equal to 60°, the negative pressure massage head 10 can be effectively prevented from being separated from the massaged part due to the pulling effect of the harness 30.

[0098] by Fig.11 For example, the angle α formed by the central axis Y of the harness fixing hole K3 and the fitting portion M2 is 17°, and the pulling force FL of the harness 30 on the negative pressure massage head 10 can be decomposed into a first force component FL1 and a second force component FL2, wherein the direction of the first force component FL1 is the direction from the second side C2 to the first side C1, so the first force component FL1 can cause the negative pressure massage head 10 to further press the part to be massaged. The direction of the second force component FL2 is perpendicular to the direction from the second side C2 to the first side C1, so the second force component FL2 has a tendency to cause the negative pressure massage head 10 to slide along the surface of the part to be massaged, but will not cause the negative pressure massage head 10 to detach from the part to be massaged.

[0099] Please refer to Figure 6 , Fig. 9 and Fig.10 The bottom shell 1121 has a bottom point X far away from the fitting portion M2 (see Fig. 9), the bottom point X is the position of the negative pressure massage head 10 that is farthest from the fitting portion M2 in the preset direction F. The harness fixing hole K3 is located between the bottom point X and the fitting portion M2.

[0100] Specifically, if the component of the pulling force of the wire harness 30 on the negative pressure massage head 10 in the direction perpendicular to the preset direction F is not zero, the component multiplied by the corresponding lever arm is the torque applied to the negative pressure massage head 10, which will cause the entire negative pressure massage head 10 to have a tendency to flip over. When the torque exceeds a certain threshold, the negative pressure massage head 10 will flip over and fall off the massage area.

[0101] In this embodiment, when the pulling force of the wire harness 30 is the same, the wire harness fixing hole K3 is set between the bottom point X and the fitting parts M2. Compared with setting the wire harness fixing hole K3 at the bottom point X, the lever arm is smaller and the torque is also smaller, so it is not easy to cause the negative pressure massage head 10 to flip over and fall off the massaged part.

[0102] Please refer to Figure 6 , Fig. 9 and Fig.10 The pump mounting base 112 includes a mounting bracket 1122 (see Fig. 9 and Fig.10 ), the material of the mounting bracket 1122 can be, but is not limited to, plastic, metal, etc. The air pump 111 is mounted on the mounting bracket 1122, and the second end D2 of the elastic edge 130 protrudes from one side of the mounting bracket 1122. The first end D1 of the elastic edge 130 is connected to the other side of the mounting bracket 1122 away from the second end D2. The elastic edge 130 is formed with a bent portion 131 (such as Figure 6 The bent portion 131 surrounds the outer periphery of the pump mounting seat 112 so that the elastic surrounding edge 130 can be turned around the bent portion 131.

[0103] Specifically, the bending portion 131 is the bending position of the elastic surrounding edge 130 in the preset direction F. As mentioned above, when the negative pressure massage head 10 switches between the first state and the second state, the elastic surrounding edge 130 needs to be flipped, and the flipping means that the elastic surrounding edge 130 needs to be bent. It can be understood that if the above-mentioned bending portion 131 is not provided, the bending position of the elastic surrounding edge 130 when flipping is uncertain, and some bending positions may be close to the fitting portion M2, and some bending positions are far away from the fitting portion M2, and the expected flipping target cannot be achieved. In this embodiment, a bending portion 131 is provided on the elastic surrounding edge 130, and the bending portion 131 is close to the mounting bracket 1122 and is arranged around it. In this way, the elastic surrounding edge 130 can be flipped around the pump mounting seat 112 with the help of the bending portion 131, which is conducive to the elastic surrounding edge 130 to quickly switch between the first state and the second state, so that the negative pressure massage head 10 can quickly self-absorb at the massaged part.

[0104] Optionally, the pump mounting base 112 further includes a bottom shell 1121, and the material of the bottom shell 1121 can be, but is not limited to, plastic, metal, etc. The bottom shell 1121 is connected to the side of the mounting bracket 1122 away from the air pump 111. The first end D1 of the elastic surrounding edge 130 is bent relative to the mounting bracket 1122 to the side of the mounting bracket 1122 away from the air pump 111, and the first end D1 of the elastic surrounding edge 130 is at least partially clamped between the bottom shell 1121 and the mounting bracket 1122. In other words, the bottom shell 1121 and the mounting bracket 1122 are used to clamp at least part of the first end D1 of the elastic surrounding edge 130, so that the elastic surrounding edge 130 can be turned over by the bottom shell 1121 and the mounting bracket 1122, and the reliability of the connection of the elastic surrounding edge 130 can be ensured.

[0105] Please refer to Figure 5 and Figure 6The outer diameter of the elastic edge 130 gradually decreases in the direction from the second end D2 to the first end D1. In this way, the negative pressure port K2 at the second end D2 can have a larger adsorption diameter, which is conducive to better adsorption. A smaller reduction structure is formed at the connection between the first end D1 and the mounting bracket 1122. The reduction structure is similar to a small waist structure. The outer diameter of the connection between the first end D1 and the mounting bracket 1122 is smaller than the outer diameter of the rest of the elastic edge 130. This is conducive to the elastic edge 130 using the reduction structure. The structure flips over naturally because the outer diameter of the reduced structure is relatively small. Therefore, when the rest of the elastic rim 130 is turned outward, it can expand outward based on the reduced structure. The reduced structure will hardly hinder the turned outward of the rest of the parts, and is conducive to using the fitting portion M2 as a fulcrum. The air pump assembly 110 forms a basis for floating up and down based on the small waist structure, that is, the air pump assembly 110 can float up and down relative to the elastic rim 130 based on the reduced structure as a floating basis. When the negative pressure massage head 10 is adsorbed, it is conducive to the air pump assembly 110 moving toward the negative pressure port K2.

[0106] Please refer to Figure 6 , Fig. 9 and Fig.10 The pump mounting seat 112 includes a mounting bracket 1122, and the elastic surrounding edge 130 is arranged around the outer periphery of the mounting bracket 1122. The elastic surrounding edge 130 and the mounting bracket 1122 are arranged together to form the floating cavity Q. The floating electrode 120 and the mounting bracket 1122 are arranged together to form an inner chamber Q1. The inner chamber Q1 is used for the floating electrode 120 to float up and down. The air pump 111 is arranged in the inner chamber Q1 and avoids the path of the floating electrode 120 floating up and down.

[0107] Specifically, since the floating electrode 120 is disposed in the floating cavity Q, the floating cavity Q is divided into two chambers, one is an inner chamber Q1 formed by the floating electrode 120 and the mounting bracket 1122, and the other is an outer chamber Q2 formed by the floating electrode 120 and the elastic surrounding edge 130, wherein the outer chamber Q2 is directly connected to the negative pressure port K2. When the floating electrode 120 floats downward (from the first side C1 to the second side C2), the inner chamber Q1 decreases and the outer chamber Q2 increases. Conversely, when the floating electrode 120 floats upward (from the second side C2 to the first side C1), the inner chamber Q1 increases and the outer chamber Q2 decreases. In this embodiment, the air pump 111 is installed using the inner chamber Q1 formed by the floating electrode 120 and the mounting bracket 1122, without the need to set up a separate space, and the floating electrode 120 is squeezed by the massaged part to compress the air, which is conducive to the air pump 111 to quickly pump air to form a negative pressure.

[0108] The floating electrode 120 has a natural state and a compressed state, wherein the natural state refers to the state of the floating electrode 120 when it is not subjected to external force, and the compressed state refers to the state of the floating electrode 120 when it is subjected to a force in the direction from the first side C1 to the second side C2. The size of the floating electrode 120 in the preset direction F when in the natural state is larger than that in the compressed state.

[0109] The floating electrode 120 has elasticity in a preset direction F. When the floating electrode 120 is subjected to a force from the first side C1 toward the second side C2, the floating electrode 120 changes from a natural state to a compressed state, and the floating electrode 120 gradually shortens in the force direction. This process is that the floating electrode 120 floats downward. When the force from the first side C1 toward the second side C2 is removed, the floating electrode 120 changes from a compressed state to a natural state. The floating electrode 120 automatically stretches due to its elasticity. This process is that the floating electrode 120 floats upward.

[0110] When the negative pressure massage head 10 is adsorbed on the part to be massaged, the floating electrode 120 will be pressed by the part to be massaged (the pressing direction is the direction from the first side C1 to the second side C2) and will be in a compressed state. Since the floating electrode 120 has elasticity in the preset direction F, the floating electrode 120 has a tendency to change to a natural state, thereby tightly contacting the part to be massaged. In this way, the floating electrode 120 and the part to be massaged can have a high degree of fit, thereby achieving an ideal massage effect on the part to be massaged.

[0111] Please refer to Figure 6 and Fig. 9 The pump mounting seat 112 further includes a resisting structure 1123, the material of which can be but is not limited to plastic, metal, etc. The resisting structure 1123 is arranged on the side of the air pump 111 facing the floating electrode 120. The resisting structure 1123 is used to stop the maximum downward floating stroke of the floating electrode 120 so that the floating electrode 120 fits the part to be massaged. That is to say, when the floating electrode 120 floats downward to a certain position, it will abut against the resisting structure 1123, and the resisting structure 1123 will prevent the floating electrode 120 from continuing to float downward. On the one hand, it can prevent the floating electrode 120 from fitting poorly with the part to be massaged, and on the other hand, it can also prevent the floating electrode 120 from touching the air pump 111, that is, the resisting structure 1123 plays a protective role on the air pump 111.

[0112] Please combine Figure 6 , Fig. 9 Reference Fig.12 The floating electrode 120 includes a floating seat 121 and an electrode massage member 122 (see Fig.12). The floating seat 121 includes a floating edge 1211 and a fixed portion 1212 connected to each other. The fixed portion 1212 is connected to one end of the floating edge 1211 away from the resisting structure 1123. The electrode massage member 122 is installed on the side of the fixed portion 1212 away from the resisting structure 1123. The resisting structure 1123 can resist the other side of the fixed portion 1212 away from the electrode massage member 122 during the floating process of the floating electrode 120. The electrode massage member 122 is used to output electrical energy to the massaged part to achieve a massage effect through electrical stimulation.

[0113] Specifically, for the above-mentioned structure, when the floating electrode 120 is resisted by the resisting structure 1123, the electrode massage member 122 will not be pressed by the resisting structure 1123, thereby preventing the electrode massage member 122 from being damaged by the impact force of the resisting structure (for example, preventing the electrode massage member 122 from being separated from the fixing portion 1212), thereby preventing the service life of the electrode massage member 122 from being reduced. Furthermore, since the electrode massage member 122 will not be pressed by the resisting structure 1123, the electrode massage member 122 can at least be made of a rigid material, thereby reducing the material restrictions on the electrode massage member 122.

[0114] The fixed portion 1212 and the floating surrounding edge 1211 can be made of the same material or different materials. In some embodiments, the fixed portion 1212 is made of an elastic material with elasticity, that is, the fixed portion 1212 can be elastically deformed when resisted by the resisting structure 1123. In this way, when the negative pressure massage head 10 is adsorbed on the part to be massaged, the fixed portion 1212 collides with the resisting structure 1123, and the fixed portion 1212 can be elastically deformed to form a buffer, thereby reducing the hard contact feeling between the human body and the electrode massage part 122, and the resilience of the fixed portion 1212 can improve the fit between the electrode massage part 122 and the part to be massaged.

[0115] Please combine Figure 6 Reference Fig.12 The electrode massage member 122 has an electrode surface M5 for attaching to the massaged part, and the floating electrode 120 further includes a heating member 123. The heating member 123 is used to output heat energy to the massaged part to heat the massaged part. The heating member 123 is arranged on the side of the electrode massage member 122 away from the electrode surface M5, and the side of the fixing portion 1212 away from the electrode surface M5 is flush with or protrudes from the side of the heating member 123 away from the electrode massage member 122.

[0116] Specifically, since the resisting structure 1123 is disposed between the heating element 123 and the air pump 111, when the floating electrode 120 floats downward, the heating element 123 will gradually approach the resisting structure 1123. It is understandable that if the heating element 123 directly abuts against the resisting structure 1123, after several abutting actions, the heating element 123 may be damaged and cannot work normally. Based on this, in this embodiment, the side of the fixing portion 1212 away from the electrode surface M5 is designed to be flush with or protrude from the side of the heating element 123 away from the electrode massage element 122, that is, the surface of the fixing portion 1212 is flush with or protrudes from the surface of the heating element 123 facing the resisting structure 1123. In this way, when the floating electrode 120 floats downward, it is the fixing portion 1212 that abuts against the resisting structure 1123, rather than the heating element 123, so that the direct collision between the heating element 123 and the resisting structure 1123 can be avoided.

[0117] Please refer to Fig.12 and Fig.13 The floating seat 121 further includes a clamping portion 1213, which is connected to one end of the floating surrounding edge 1211 away from the fixed portion 1212. The resisting structure 1123 is provided with a matching portion 1123a that matches the clamping portion 1213. The clamping portion 1213 is clamped with the matching portion 1123a. After the clamping, the resisting structure 1123 can limit the degree of freedom of the floating seat 121 in a preset direction F, thereby preventing the floating electrode 120 from being separated from the resisting structure 1123 during the process of floating up and down. In addition, the clamping portion 1213 and the matching portion 1123a are clamped in a detachable connection form, which is conducive to the rapid disassembly and assembly of the floating electrode 120, and the installation and maintenance of the internal air pump 111.

[0118] Please refer to Figure 6 , the air pump 111 is a piezoelectric pump, and the size of the piezoelectric pump is the smallest along the relative direction of the first side C1 and the second side C2. In other words, the piezoelectric pump has a flat direction (i.e., the relative direction of the first side C1 and the second side C2), and has the smallest size in the flat direction, which is consistent with the floating direction of the floating electrode 120. Since the size of the piezoelectric pump in the flat direction is small, the mounting bracket 1122 can form a larger inner chamber Q1 with the floating electrode 120, and can also reduce the floating obstruction of the piezoelectric pump to the electrode massage member 122.

[0119] Please refer to Figure 6 and Fig.12The floating electrode 120 includes a floating seat 121 and an electrode massage member 122. One end of the floating seat 121 is connected to the elastic surrounding edge 130 or the pump mounting seat 112, and the other end of the floating seat 121 is connected to the electrode massage member 122, so that the electrode massage member 122 can float in the floating cavity Q. The floating seat 121 is arranged around the air pump 111 to form an inner chamber Q1, so that the air pump 111 is located in the inner chamber Q1. The floating seat 121 separates the inner chamber Q1 from the floating cavity Q. The peripheral wall of the floating seat 121 is provided with a connecting hole K4 (see Fig.12 The connecting hole K4 connects the floating chamber Q with the inner chamber Q1, so that the floating chamber Q forms a negative pressure through the air pump 111. A height difference is formed between the connecting hole K4 and the bottom wall of the floating chamber Q to prevent the liquid sucked into the floating chamber Q from entering the inner chamber Q1 through the connecting hole K4.

[0120] Specifically, as described above, the floating seat 121 divides the floating chamber Q into an inner chamber Q1 and an outer chamber Q2. A connecting hole K4 is provided on the circumferential side wall of the floating seat 121. The connecting hole K4 penetrates the side wall of the floating seat 121, so that the inner chamber Q1 and the outer chamber Q2 are connected through the connecting hole K4. The air pump 111 is arranged in the inner chamber Q1 formed by the floating seat 121, which can not only reduce the air pump 111 from occupying other spaces, but also protect the air pump 111. In addition, when the floating electrode 120 is squeezed by the part to be massaged and the air is compressed, it is also conducive to the pump to quickly suck air to form a negative pressure. Further, when the air pump 111 sucks air, the air pressure of the inner chamber Q1 first decreases with the reduction of air, and the air of the outer chamber Q2 flows into the inner chamber Q1 through the connecting hole K4, and the air pressure of the outer chamber Q2 is also reduced, which is finally reflected in the enhanced negative pressure adsorption effect of the negative pressure massage head 10 on the part to be massaged.

[0121] Take the user's neck as an example: in some cases, the user's neck may produce sweat, which will enter the outer chamber Q2 through the negative pressure port K2. Since the outer chamber Q2 is connected to the inner chamber Q1 through the connecting hole K4, the sweat may also enter the inner chamber Q1 from the connecting hole K4 and finally be sucked into the air pump 111. However, this may cause damage to the air pump 111. In this embodiment, there is a height difference between the connecting hole K4 and the bottom wall of the outer chamber Q2, that is, the connecting hole K4 is roughly set in the middle of the circumferential side wall of the floating seat 121, but not set at the bottom position of the floating seat 121 near the air pump 111. In this way, the sweat can only gather at the bottom of the outer chamber Q2 under the action of gravity, and will not reach the connecting hole K4. In addition, setting the connecting hole K4 roughly in the middle of the circumferential side wall of the floating seat 121 can also increase the wall climbing length of the sweat, thereby preventing the sweat from entering the connecting hole K4. Of course, the phrase “preventing sweat from entering the connecting hole K4” does not mean “the situation where sweat enters the connecting hole K4 is completely prevented”, but rather means “the possibility of sweat entering the connecting hole K4 is reduced”.

[0122] It should be noted that the number of the communication holes K4 may be one or more, and the specific number may be but is not limited to 1, 2, 3, 4, 5, 6, etc. When the number of the communication holes K4 is more than one, the plurality of communication holes K4 may be arranged at intervals along the circumference of the floating seat 121 .

[0123] Please refer to Fig.14 , the air pump 111 has an upper end surface M6 and a lower end surface M7. The upper end surface M6 faces the negative pressure port K2. The distance from the upper end surface M6 to the fitting portion M2 is a first spacing H1. The distance from the lower end surface M7 to the bottom point X of the pump mounting seat 112 is a second spacing H2. Among them, the first spacing H1 is smaller than the second spacing H2, which means that the center of gravity of the air pump 111 can be closer to the fitting portion M2 and farther away from the bottom surface of the pump mounting seat 112, so that the center of gravity of the negative pressure massage head 10 as a whole is closer to the fitting portion M2, so that the massage head can be more stably and reliably adsorbed on the massaged area.

[0124] Please refer to Fig.14, the distance from the fitting portion M2 to the center of gravity of the air pump 111 is the third spacing H3. The distance from the fitting portion M2 to the bottom point X of the pump mounting seat 112 is the fourth spacing H4, and the fourth spacing H4 represents the maximum size of the negative pressure massage head 10 in the preset direction F, which can be understood as the thickness of the negative pressure massage head 10. Among them, the ratio of the third spacing H3 to the fourth spacing H4 is less than or equal to 2 / 3, and the ratio of the third spacing H3 to the fourth spacing H4 can specifically be 2 / 3, 0.6, 0.5, 0.4, 0.3, 0.2 or 0.1, etc. In this embodiment, the ratio of the third spacing H3 to the fourth spacing H4 is limited to less than or equal to 2 / 3, which can ensure that the center of gravity of the air pump 111 will not be too far away from the fitting portion M2, thereby reducing the possibility of the negative pressure massage head 10 falling from the massaged area, so that the massage head can be more stably and reliably adsorbed on the massaged area.

[0125] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present application, and these improvements and modifications are also regarded as the scope of protection of the present application.

Claims

1. A negative pressure massage head, characterized in that: The negative pressure massage head comprises: An air pump assembly, the air pump assembly comprising an air pump and a pump mounting seat, the air pump being mounted on the pump mounting seat; A floating electrode, wherein the floating electrode is arranged to float relative to the pump mounting seat, and the floating electrode has an electrode surface, and the electrode surface is used to massage the massaged part; An elastic surrounding edge, wherein the elastic surrounding edge is arranged around the floating electrode, and the elastic surrounding edge and the pump mounting seat together form a floating cavity, the floating cavity is connected to the air pump, and the electrode surface of the floating electrode is located in the floating cavity. The elastic surrounding edge has a first end and a second end opposite to each other, the first end is connected to the pump mounting seat, and the second end has a fitting portion, the fitting portion is arranged around to form a negative pressure port, the negative pressure port is connected to the floating cavity, the fitting portion is suitable for fitting with the part to be massaged to form a closure for the floating cavity, and the elastic surrounding edge has the ability to deform along the axial direction of the negative pressure port and the circumferential direction of the negative pressure port to adapt to the rotation of the part to be massaged.

2. The negative pressure massage head according to claim 1, characterized in that: The maximum compression stroke of the elastic surrounding edge is greater than the maximum compression stroke of the floating electrode, and the height of the electrode surface protruding from the pump mounting seat is lower than the height of the fitting portion protruding from the pump mounting seat. The floating electrode is configured so that after the elastic surrounding edge is compressed to a preset stroke, the floating electrode is compressed along with the elastic surrounding edge when the elastic surrounding edge continues to be compressed, so that the air in the floating cavity is discharged to form self-adsorption positioning.

3. The negative pressure massage head according to claim 1, characterized in that: The outer diameter of the elastic rim gradually decreases in the direction from the second end to the first end, so as to form a reduction structure at the connection between the first end and the pump mounting seat, wherein the negative pressure massage head is configured such that when subjected to a pressing force, the second end forms an outward-turned state based on the reduction structure, and the outer edge of the fitting portion is supported by the inner edge of the fitting portion and deformed outward relative to the skin of the part to be massaged to form a gap, so that the air in the negative pressure cavity can be discharged through the gap; when the negative pressure massage head is configured such that when the pressing force is canceled, the outer edge of the fitting portion returns to fit the skin of the part to be massaged to form a self-adsorption positioning.

4. The negative pressure massage head according to claim 1, characterized in that: The negative pressure massage head has a first state, which is a free state. When the negative pressure massage head is in the first state, the second end of the elastic rim away from the pump mounting seat protrudes from the first side of the air pump assembly. The elastic rim has a second state, which is an outward-turned state. When the elastic rim is in the second state, the second end of the elastic rim is outward-turned to the second side of the air pump assembly, and the floating electrode is exposed to the first side. The elastic rim can switch from the second state to the first state by its own deformation or external force, so as to fit the part to be massaged and thus self-absorbed in the part to be massaged.

5. The negative pressure massage head according to claim 1, characterized in that: The negative pressure massage head has a first state, which is a free state. When the negative pressure massage head is in the first state, the second end of the elastic rim protrudes from the first side of the air pump assembly away from the pump mounting seat, and at least part of the air pump assembly is arranged in the area surrounded by the elastic rim so that the center of gravity of the air pump assembly is close to the negative pressure port.

6. The negative pressure massage head according to claim 5, characterized in that: The maximum dimension of the air pump assembly in a preset direction is less than or equal to 1 / 2 of the maximum compression stroke of the elastic surround in the preset direction, wherein the preset direction is the direction from the first end to the second end.

7. The negative pressure massage head according to claim 4, characterized in that: During the process of the negative pressure massage head switching from the first state to the second state, the range through which the fitting portion moves from the first side to the second side is a preset range, and the air pump assembly is located within the preset range.

8. The negative pressure massage head according to claim 1, characterized in that: The elastic surrounding edge has an inner wall surface and an outer wall surface arranged in opposite directions, the inner wall surface is used to form the floating cavity, and the elastic surrounding edge is provided with a groove at a position close to the negative pressure port, the groove is located on the side where the inner wall surface is located, and the groove is connected to the floating cavity to accommodate a part of the area to be massaged when negative pressure is formed in the floating cavity.

9. The negative pressure massage head according to claim 8, characterized in that: The fitting portion forms an extension surface along the direction from the outer wall surface to the inner wall surface toward the negative pressure port, and the extension surface and the inner wall surface define the groove.

10. The negative pressure massage head according to claim 1, characterized in that: The pump mounting seat includes a bottom shell facing away from the fitting portion, and the bottom shell is provided with a wire harness fixing hole, and the wire harness fixing hole is used for the wire harness to pass through so that the wire harness is electrically connected to the air pump, and the angle formed by the central axis of the wire harness fixing hole and the fitting portion is greater than or equal to 0° and less than or equal to 60°, so that the wire harness is parallel to the surface where the fitting portion is located or close to the side where the fitting portion is located under the constraint of the wire harness fixing hole.

11. The negative pressure massage head according to claim 10, characterized in that: The bottom shell has a bottom point away from the fitting portion, and the harness fixing hole is located between the bottom point and the fitting portion.

12. The negative pressure massage head according to claim 1, characterized in that: The pump mounting seat includes a mounting bracket, the air pump is mounted on the mounting bracket, the second end of the elastic edge protrudes from one side of the mounting bracket, the first end of the elastic edge is connected to the other side of the mounting bracket away from the second end, and the elastic edge is formed with a bending portion at a position close to the mounting bracket, and the bending portion surrounds the outer circumference of the pump mounting seat so that the elastic edge can be flipped around the bending portion.

13. The negative pressure massage head according to claim 12, characterized in that: The pump mounting base also includes a bottom shell, which is connected to a side of the mounting bracket facing away from the air pump. The first end of the elastic surrounding edge is bent relative to the mounting bracket to a side of the mounting bracket facing away from the air pump, and the first end of the elastic surrounding edge is at least partially clamped between the bottom shell and the mounting bracket.

14. The negative pressure massage head according to claim 1, characterized in that: The pump mounting seat includes a mounting bracket, the elastic surrounding edge is arranged around the outer periphery of the mounting bracket, the elastic surrounding edge and the mounting bracket are jointly arranged to form the floating cavity, the floating electrode and the mounting bracket are jointly arranged to form an inner chamber, the inner chamber is used for the floating electrode to float up and down, and the air pump is arranged in the inner chamber and avoids the path of the floating electrode floating up and down.

15. The negative pressure massage head according to claim 1, characterized in that: The pump mounting seat further comprises a resisting structure, which is arranged on a side of the air pump facing the floating electrode, and is used to stop the maximum downward floating stroke of the floating electrode so that the floating electrode fits the part to be massaged.

16. The negative pressure massage head according to claim 15, characterized in that: The floating electrode includes a floating seat and an electrode massage piece. The floating seat includes a floating edge and a fixed part connected to each other. The fixed part is connected to one end of the floating edge away from the resisting structure. The electrode massage piece is installed on a side of the fixed part away from the resisting structure. The resisting structure can resist the other side of the fixed part away from the electrode massage piece when the floating electrode is floating downward.

17. The negative pressure massage head according to claim 16, characterized in that: The electrode massage piece has an electrode surface for adhering to a part to be massaged. The floating electrode also includes a heating element, which is arranged on a side of the electrode massage piece away from the electrode surface. The side of the fixing portion away from the electrode surface is flush with or protrudes from a side of the heating element away from the electrode massage piece.

18. The negative pressure massage head according to claim 16, characterized in that: The floating seat also includes a clamping portion, which is connected to an end of the floating edge away from the fixed portion. The resisting structure is provided with a matching portion that matches the clamping portion, and the clamping portion is clamped with the matching portion.

19. The negative pressure massage head according to claim 1, characterized in that: The air pump is a piezoelectric pump, and along the relative direction between the first end and the second end, the size of the piezoelectric pump is the smallest.

20. The negative pressure massage head according to claim 1, characterized in that: The floating electrode comprises a floating seat and an electrode massage member, one end of the floating seat is connected to the elastic surrounding edge or the pump mounting seat, and the other end of the floating seat is connected to the electrode massage member, so that the electrode massage member can float in the floating cavity; The floating seat is arranged around the air pump to form an inner chamber, so that the air pump is located in the inner chamber, the floating seat separates the inner chamber from the floating cavity, and the surrounding wall of the floating seat is provided with a connecting hole, which connects the floating cavity and the inner chamber to form a negative pressure in the floating cavity through the air pump; a height difference is formed between the connecting hole and the bottom wall of the floating cavity to prevent the liquid sucked into the floating cavity from entering the inner chamber through the connecting hole.

21. The negative pressure massage head according to claim 1, characterized in that: The air pump has an upper end face and a lower end face, the upper end face faces the negative pressure port, the distance from the upper end face to the fitting portion is a first spacing, the distance from the lower end face to the bottom point of the pump mounting seat is a second spacing, and the first spacing is smaller than the second spacing.

22. The negative pressure massage head according to claim 1, characterized in that: The distance from the fitting portion to the center of gravity of the air pump is a third distance, the distance from the fitting portion to the bottom point of the pump mounting seat is a fourth distance, and the ratio of the third distance to the fourth distance is less than or equal to 2 / 3.

23. A massage device, characterized in that: The massage device comprises the negative pressure massage head as described in any one of claims 1 to 22.

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