Pump head module, consumable transfer pump and individual protection equipment

Abstract

The utility model discloses a pump head module, a consumable transfer pump and individual protection equipment, and belongs to the technical field of nursing. The pump head module comprises a pump head body and a locking structure arranged on the pump head body, and the pump head body is provided with a shaft through hole; the pump head body is arranged on a transmission shaft of a power structure in a sleeving mode through the shaft through hole, and a gap is formed between the inner wall of the shaft through hole and the outer wall of the transmission shaft. When the transmission shaft rotates in the first direction, the pump head body is connected with the transmission shaft in a locking mode through the locking structure, so that the pump head body rotates in the first direction along with the transmission shaft. Therefore, the abrasion degree of the pump head module can be reduced.

Description

Technical Field

[0001] The present application belongs to the field of nursing technology, and specifically relates to a pump head module, a consumable material transfer pump and personal care equipment. Background Art

[0002] At present, personal care devices such as electric toothbrushes are usually equipped with consumable transfer pumps to achieve the transmission of consumables such as toothpaste. Among them, when the consumable transfer pump transmits consumables such as toothpaste, it usually drives its pump head structure through the power structure of the consumable transfer pump, so that the pump head structure squeezes the consumables in the consumable transfer tube for transmission. However, when the pump head structure rotates following the transmission shaft of the power structure, the rotation direction of the pump head structure is directly determined by the rotation direction of the transmission shaft. For example, when the transmission shaft rotates clockwise, the pump head structure rotates clockwise with the transmission shaft; and when the transmission shaft rotates counterclockwise, the pump head structure rotates counterclockwise with the transmission shaft. That is, there is a problem that the rotation direction of the pump head structure cannot be selected, so the pump head structure needs to always rotate with the transmission shaft, which easily leads to unnecessary wear problems of the pump head structure.

[0003] It can be seen that the pump head structure in the related art has the problem of severe wear. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a pump head module, a consumable material transfer pump and a personal care device that can solve the problem of severe wear of the pump head structure in the related art.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a pump head module, comprising: a pump head body and a locking structure provided on the pump head body, wherein the pump head body is provided with an axial through hole; the pump head body is sleeved on a transmission shaft of a power structure through the axial through hole, and a gap is formed between an inner wall of the axial through hole and an outer wall of the transmission shaft;

[0007] When the transmission shaft rotates in a first direction, the pump head body is locked and connected to the transmission shaft via the locking structure, so that the pump head body rotates in the first direction following the transmission shaft.

[0008] Optionally, the locking structure includes a movable member and a groove provided on the pump head body, the groove includes a first notch located on the inner wall of the shaft through hole and a side wall structure connected to the first notch, and the movable member is at least partially located in the groove;

[0009] The vertical distance from the side wall structure to the first notch gradually decreases along the first direction, so that when the transmission shaft rotates in the first direction, the side wall structure is locked and connected to the outer wall of the transmission shaft through the movable part.

[0010] Optionally, the sidewall structure includes a first sidewall, a second sidewall, and a third sidewall connected in sequence, and an end of the first sidewall away from the second sidewall and an end of the third sidewall away from the second sidewall both extend to the first notch;

[0011] The vertical distance from the first side wall to the first notch gradually decreases along the first direction, so that when the transmission shaft rotates in the first direction, the first side wall is locked and connected to the outer wall of the transmission shaft through the movable part.

[0012] Optionally, the locking structure further includes a first elastic member, a first end of the first elastic member is connected to the first side wall or the third side wall, and a second end of the first elastic member is connected to the movable member.

[0013] Optionally, the first side wall or the third side wall is provided with a second connecting portion adapted to the first elastic member, and the first end of the first elastic member is connected to the second connecting portion;

[0014] Wherein, the second connecting portion is a receiving groove or a protruding column provided on the first side wall or the third side wall.

[0015] Optionally, the pump head body includes a first end, a second end, and a first connecting portion connecting the first end and the second end, and the axial through hole is formed by passing through the first end, the connecting portion, and the second end; the locking structure is provided on the first end and / or the second end.

[0016] Optionally, the pump head module further includes an extrusion member and a consumables transmission tube, the pump head body includes a first assembly portion provided at the first end portion and a second assembly portion provided at the second end portion, and both ends of the extrusion member are rotatably connected to the first assembly portion and the second assembly portion respectively;

[0017] The extrusion member is used to squeeze the consumables in the consumables transmission tube for transmission when the pump head body rotates in the first direction.

[0018] Optionally, the movable part is one of a ball and a roller.

[0019] Optionally, the locking structure includes a wedge structure arranged in the gap, the wedge structure including a first diagonal end, a second diagonal end, a third diagonal end and a fourth diagonal end sequentially distributed along the plane where the cross section of the gap is located, the first diagonal end and the second diagonal end are two diagonal ends of the wedge structure facing the inner wall of the shaft through hole, and the second diagonal end and the first diagonal end are sequentially distributed along the first direction; the third diagonal end and the fourth diagonal end are two diagonal ends of the wedge structure facing the outer wall of the transmission shaft, and the third diagonal end and the fourth diagonal end are sequentially distributed along the first direction;

[0020] The distance between the first diagonal end and the third diagonal end is greater than the width of the gap, and the distance between the second diagonal end and the fourth diagonal end is less than the width of the gap.

[0021] Optionally, the locking structure also includes a second elastic member, a first end of the second elastic member is connected to the inner wall of the shaft through hole, a second end of the second elastic member is connected to the wedge block structure, and the second elastic member and the wedge block structure are distributed in sequence along the first direction.

[0022] In a second aspect, an embodiment of the present application proposes a consumable material transfer pump, comprising a power structure and a pump head module as described in the first aspect.

[0023] Optionally, the consumable transfer pump includes a plurality of the pump head modules, which are sequentially sleeved on the transmission shaft of the power structure; the first directions of at least two of the plurality of pump head modules are the same or opposite.

[0024] In a third aspect, an embodiment of the present application proposes a personal care device, comprising the consumables transfer pump described in the second aspect.

[0025] In the embodiments of the present application, by providing a locking structure and utilizing the one-way locking function of the locking structure, the one-way rotation of the pump head body can be achieved, that is, the one-way rotation function of the pump head module can be achieved, that is, the selectivity of the rotation direction of the pump head module is achieved. Compared with the conventional pump head module that needs to always follow the rotation of the transmission shaft, the degree of wear of the pump head module is effectively reduced.

[0026] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a structural diagram of the personal protection device provided in an embodiment of the present application;

[0029] Figure 2 This is a partial structural diagram of the personal protection device provided in an embodiment of the present application;

[0030] Figure 3 for Figure 2 The structural diagram of the consumables transfer pump shown in ;

[0031] Figure 4 for Figure 2 One of the partial structural diagrams of the consumables transfer pump shown in ;

[0032] Figure 5 for Figure 2 The second schematic diagram of the partial structure of the consumables transfer pump shown in FIG;

[0033] Figure 6 for Figure 2 Partial structural diagram of the consumables transfer pump shown in the third;

[0034] Figure 7 for Figure 2 The fourth schematic diagram of the partial structure of the consumable transfer pump shown in FIG.

[0035] Figure 8 for Figure 6 One of the structural diagrams of the pump head module shown in ;

[0036] Figure 9 for Figure 8 A schematic diagram of a portion of the structure of the pump head module shown in FIG;

[0037] Figure 10 yes Figure 9 An enlarged view of the circled section A;

[0038] Figure 11 for Figure 6 The second structural diagram of the pump head module shown in FIG;

[0039] Figure 12 for Figure 11 A schematic diagram of a portion of the structure of the pump head module shown in FIG;

[0040] Figure 13 yes Figure 12 An enlarged view of the circled section B;

[0041] Figure 14 for Figure 6 A schematic diagram of a portion of the structure of the pump head module shown in FIG;

[0042] Figure 15 for Figure 14 Schematic diagram of the wedge structure shown in .

[0043] Description of reference numerals:

[0044] Handle 100; consumables transfer pump 10; power structure 11; transmission shaft 111; pump head module 12; pump head body 121; shaft through hole 1211; groove 1212; side wall structure 12121; first side wall 121211; second side wall 121212; third side wall 121213; second connecting portion 12122; first end 1213; first assembly portion 12131; second end Part 1214; second assembly part 12141; first connecting part 1215; locking structure 122; movable part 1221; first elastic part 1222; wedge structure 1223; first diagonal end 12231; second diagonal end 12232; third diagonal end 12233; fourth diagonal end 12234; extrusion part 123; consumables transfer tube 124; oil-containing bearing 13; drive motor 20;

[0045] Nursing head - 200. DETAILED DESCRIPTION

[0046] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0047] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly refer to one or more of the features. Throughout the description of this application, unless otherwise specified, "plurality" means two or more. Furthermore, "and / or" in the specification and claims refers to at least one of the connected entities, and the character " / " generally indicates an "or" relationship between the connected entities.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0049] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0050] In order to enable those skilled in the art to better understand the embodiments of the present application, the personal protection equipment involved in the embodiments of the present application is first described.

[0051] The personal care devices involved in this application can be understood as personal care devices such as electric toothbrushes, skin care devices, and water flossers, such as Figure 1 and Figure 2 As shown, the personal care device includes a handle 100 and a care head 200. The handle 100 can be understood as the part of the personal care device that is held by the user during operation, and the care head 200 can be understood as the part of the personal care device used to provide care to the user, such as a toothbrush head or a skin care head. The handle 100 includes a consumable bottle for holding consumables, such as toothpaste, skin care products, mouthwash, etc.

[0052] like Figure 2 As shown, the personal care device also includes a consumables transfer pump 10 and a drive motor 20. The consumables transfer pump 10 is used to transfer consumables to the care head 200 for the care head 200 to perform care operations; the drive motor 20 is used to drive the care head 200 to vibrate, swing or rotate or other movements, so that the vibration, swing or rotation of the care head 200 can perform corresponding care operations.

[0053] In some embodiments, the drive motor 20 can be an ultrasonic motor, a brushless motor, a servo motor, etc., which is not limited here.

[0054] The consumables transfer pump 10 and the drive motor 20 included in the personal care device can be arranged on the handle part 100 .

[0055] like Figures 3 to 15 As shown, the consumables transfer pump 10 provided in the embodiment of the present application includes: a power structure 11 and a pump head module 12, the power structure 11 includes a power part and a transmission shaft 111, and the transmission shaft 111 can be understood as the power output shaft of the power part; wherein, the pump head module 12 can be sleeved on the transmission shaft 111, so that the transmission shaft 111 can drive the pump head module 12 to rotate, thereby realizing the consumables transfer function of the consumables transfer pump 10.

[0056] The power component mentioned above may be a power component such as a motor; for example, when the power component is a motor, it may be a sonic motor, a brushless motor, a servo motor, etc.

[0057] In some embodiments, the power structure 11 may further include a reduction gearbox to increase the torque, that is, to increase the torque of the transmission shaft 111 .

[0058] In some embodiments, the pump head module 12 includes a pump head body 121 and a locking structure 122 disposed on the pump head body 121. The pump head body 121 is provided with a shaft through hole 1211. The pump head body 121 can be sleeved on the transmission shaft 111 through the shaft through hole 1211, and a gap is formed between the inner wall of the shaft through hole 1211 and the outer wall of the transmission shaft 111.

[0059] When the transmission shaft 111 rotates in the first direction, the pump head body 121 can be locked and connected to the transmission shaft 111 through the locking structure 122, so that the pump head body 121 can rotate together with the transmission shaft 111, that is, the pump head body 121 can rotate in the first direction along with the transmission shaft 111.

[0060] In this embodiment, by setting a gap between the inner wall of the shaft through hole 1211 and the outer wall of the drive shaft 111, that is, by setting the inner wall of the shaft through hole 1211 and the outer wall of the drive shaft 111 at intervals, the pump head body 121 can be avoided from directly contacting the drive shaft 111, and thus the pump head body 121 can be avoided from directly following the rotation of the drive shaft 111.

[0061] In some embodiments, the above-mentioned gap can be set to 0.2 cm, that is, the gap between the inner wall of the shaft through hole 1211 and the outer wall of the transmission shaft 111 can be set to 0.2 cm to avoid direct contact between the pump head body 121 and the transmission shaft 111.

[0062] The locking structure 122 can be understood as a structural component that can lock the pump head body 121 and the transmission shaft 111 in one direction, that is, the locking structure 122 can achieve a one-way locking connection between the pump head body 121 and the transmission shaft 111. When the transmission shaft 111 rotates in the first direction, the locking structure 122 can achieve a locking connection between the pump head body 121 and the transmission shaft 111, that is, the locking structure 122 can transmit the force provided by the transmission shaft 111 to the pump head body 121, and then drive the pump head body 121 to rotate accordingly. When the transmission shaft 111 rotates in the second direction, the locking structure 122 will not lock the pump head body 121 and the transmission shaft 111, that is, the locking structure 122 cannot transmit the force provided by the transmission shaft 111 to the pump head body 121, and cannot drive the pump head body 121 to rotate accordingly; at this time, the pump head body 121 is in a stationary state.

[0063] The first direction is opposite to the second direction. For example, when the first direction is a clockwise rotation direction, the second direction is a counterclockwise rotation direction. For another example, when the first direction is a counterclockwise rotation direction, the second direction is a clockwise rotation direction.

[0064] In this embodiment, by providing a locking structure 122 and utilizing the one-way locking function of the locking structure 122, the one-way rotation of the pump head body 121 can be achieved, that is, the one-way rotation function of the pump head module 12 can be achieved, that is, the selectivity of the rotation direction of the pump head module 12 is achieved. Compared with the conventional pump head module that needs to always follow the rotation of the transmission shaft, the degree of wear of the pump head module is effectively reduced.

[0065] For the consumables transfer pump 10, by setting the pump head module 12 as a pump head structure with a one-way rotation function, that is, improving the structure of the pump head module 12 so that it has a one-way rotation function, compared to sleeveing ​​a component that can play a one-way rotation function on the drive shaft, and then sleeved the pump head structure on the component to realize the one-way rotation of the pump head structure, the assembly space required for the consumables transfer pump 10 can be effectively reduced, and the problem of large space occupation of the consumables transfer pump 10 in the related technology is solved.

[0066] In some embodiments, the locking structure 122 includes a movable member 1221 and a groove 1212 provided on the pump head body 121. The groove 1212 includes a first notch located on the inner wall of the shaft through hole 1211 and a sidewall structure 12121 connected to the first notch. The movable member 1221 is at least partially located in the groove 1212, and the movable member 1221 can be connected to the outer wall of the transmission shaft 111 through the first notch.

[0067] The vertical distance from the side wall structure 12121 to the first notch gradually decreases along the first direction, so that when the transmission shaft 111 rotates in the first direction, the side wall structure 12121 can be locked and connected to the outer wall of the transmission shaft 111 through the movable part 1221.

[0068] The movable part 1221 can be connected to the outer wall of the transmission shaft 111 through the first notch. The connection method can be abutment or locking. Abutment is, for example, contact, that is, the movable part contacts the outer wall of the transmission shaft through the first notch, and is in a non-locking state at this time.

[0069] The vertical distance from the sidewall structure 12121 to the first notch gradually decreases along the first direction, which can be understood as the groove 1212 gradually narrowing along the first direction, that is, the width of the groove 1212 gradually decreases along the first direction.

[0070] In this embodiment, a groove 1212 for accommodating the movable part 1221 is provided on the pump head body 121, and the vertical distance from the side wall structure 12121 of the groove 1212 to the inner wall of the first notch is gradually reduced along the first direction, that is, the groove 1212 is gradually narrowed along the first direction, so that when the transmission shaft 111 rotates along the first direction, the movable part 1221 will move toward the narrowed area of ​​the groove 1212, and when the movable part 1221 moves to the narrowed area of ​​the groove 1212, the movable part 1221 will be stuck in the narrowed area of ​​the groove 1212, that is, the movable part 1221 can lock the pump head body 121 and the transmission shaft 111, so that the pump head body 121 can rotate together with the transmission shaft 111.

[0071] It can be understood that in order to lock the pump head body 121 and the drive shaft 111 together after the movable part 1221 moves to the narrowed area of ​​the groove 1212, the size of the movable part 1221 can be set to be larger than the size of the narrowed area of ​​the groove 1212 so that the movable part 1221 can be stuck in the narrowed area of ​​the groove 1212.

[0072] Among them, when the transmission shaft 111 rotates along the first direction, the transmission shaft 111 can drive the movable part 1221 to move toward the narrowed area of ​​the groove 1212, thereby locking the pump head body 121 and the transmission shaft 111 in connection; and when the transmission shaft 111 rotates along the second direction opposite to the first direction, the transmission shaft 111 will drive the movable part 1221 to move in the direction away from the narrowed area of ​​the groove 1212, that is, the movable part 1221 will not be stuck in the groove 1212, but when the groove is designed to include a bottom surface, the movable part 1221 and the bottom surface of the groove 1212 will produce relative movement, that is, the pump head body 121 and the transmission shaft 111 will not be locked in connection, that is, the pump head body 121 will not rotate with the transmission shaft 111, and the pump head body 121 will be in a stationary state.

[0073] In some embodiments, the sidewall structure 12121 includes a first sidewall 121211, a second sidewall 121212, and a third sidewall 121213 connected in sequence, and an end of the first sidewall 121211 away from the second sidewall 121212 and an end of the third sidewall 121213 away from the second sidewall 121212 both extend to the first notch;

[0074] The vertical distance from the first side wall 121211 to the first notch gradually decreases along the first direction, so that when the transmission shaft 111 rotates in the first direction, the first side wall 121211 can be locked and connected to the outer wall of the transmission shaft 111 through the movable part 1221.

[0075] The above-mentioned first side wall 121211 can be understood as a side wall set at an acute angle to the notch surface of the first notch; the above-mentioned second side wall 121212 can be understood as a side wall parallel to the notch surface of the first notch; the above-mentioned third side wall 121213 can be understood as a side wall perpendicular to the notch surface of the first notch.

[0076] In some embodiments, the angle between the third sidewall 121213 and the notch surface of the first notch may be 80° to 100°.

[0077] Among them, the distance between the second side wall 121212 and the notch surface of the first notch can be set to be larger than the size of the movable part 1221, so that the movable part 1221 can move in the groove 1212. Of course, there is a gap between the inner wall of the axial through hole of the pump head body 121 and the outer wall of the transmission shaft 111, and the distance between the second side wall 121212 and the notch surface of the first notch can also be set to be equal to or smaller than the size of the movable part 1221, so that when the transmission shaft 111 rotates in a second direction opposite to the first direction, the movable part 1221 moves in the groove 1212 without locking the transmission shaft 111. The specific size and gap of the movable part 1221 are set according to the actual scenario and are not limited here.

[0078] In this embodiment, the vertical distance from the first side wall 121211 to the first notch is gradually reduced along the first direction, that is, the area between the first side wall 121211 and the first notch is set as the narrowing area of ​​the groove 1212; in this way, when the transmission shaft 111 rotates along the first direction, the movable part 1221 can be stuck in the narrowing area of ​​the groove 1212, that is, the movable part 1221 can lock the pump head body 121 and the transmission shaft 111, so that the pump head body 121 can rotate together with the transmission shaft 111.

[0079] The movable member 1221 may be a ball, a roller, or a roller, so that the movable member 1221 can roll in the groove 1212. The groove 1212 may be a groove provided on the pump head body 121 and including a bottom surface, or may be a groove provided on the pump head body 121 and not including a bottom surface, for example, a groove that passes through the pump head body 121 and is recessed in the inner wall of the shaft through hole.

[0080] In some embodiments, the locking structure 122 further includes a first elastic member 1222 , a first end of the first elastic member 1222 is connected to the first side wall 121211 or the third side wall 121213 , and a second end of the first elastic member 1222 is connected to the movable member 1221 .

[0081] In this embodiment, by setting the first elastic member 1222, not only can the locking effect of the locking structure 122 on the pump head body 121 and the transmission shaft 111 be improved, but also the movement smoothness of the movable member 1221 can be improved, for example, it plays the role of fixing or supporting the movable member 1221, and can reduce the noise of the consumable transfer pump 10 during operation.

[0082] A second connecting portion 12122 adapted to the first elastic member 1222 may be provided on the third side wall 121213 or the first side wall 121211, and a first end of the first elastic member 1222 is connected to the second connecting portion 12122. The second connecting portion 12122 may be a receiving groove or a protruding column provided on the third side wall 121213 or the first side wall 121211. The provision of the second connecting portion 12122 allows the first elastic member 1222 to be better disposed within the groove 1212, and the provision of the second connecting portion 12122 may also provide a guide for the expansion and contraction and resetting of the first elastic member 1222.

[0083] In some embodiments, the pump head module 12 also includes an extrusion member 123 and a consumable material transfer tube 124. The extrusion member 123 is arranged on the outer peripheral surface of the pump head body 121, and the extrusion member 123 is used to extrude the consumable material transfer tube 124 to drive and transfer the consumables in the consumable material transfer tube 124.

[0084] The extrusion member 123 may be a roller structure provided on the outer peripheral surface of the pump head body 121 , so that the extrusion member 123 can squeeze the consumable transmission tube 124 to realize the drive transmission of the consumables in the consumable transmission tube 124 .

[0085] In some embodiments, one or more extrusion members 123 may be provided on each pump head module 12 to achieve drive transmission of consumables in the consumable transmission tube 124. For example, three extrusion members 123 may be provided on the pump head module 12, and the three extrusion members 123 may be evenly distributed along the outer circumference of the pump head body 121 to enhance the drive transmission effect of the consumables in the consumable transmission tube 124.

[0086] In some embodiments, the pump head body 121 also includes a first end 1213, a second end 1214 and a first connecting portion 1215 connecting the first end 1213 and the second end 1214, and the axial through hole 1211 is formed by passing through the first end 1213, the first connecting portion 1215 and the second end 1214; wherein a locking structure 122 is provided on the first end 1213 and / or the second end 1214.

[0087] The locking structure 122 includes a movable member 1221 and a groove 1212 provided on the pump head body 121. In other words, the movable member 1221 and the groove 1212 are provided on the first end 1213 and / or the second end 1214 of the pump head body 121.

[0088] In some embodiments, the groove 1212 can be arranged at the first end 1213 of the pump head body 121, and the groove 1212 not only includes a first notch located on the inner wall of the shaft through hole 1211, but also includes a second notch located at the first end 1213 of the pump head body 121, so as to facilitate the installation of the movable part 1221 into the groove 1212.

[0089] In addition, when the locking structure 122 further includes the first elastic member 1222 , the first end portion 1213 and / or the second end portion 1214 of the pump head body 121 is also provided with the first elastic member 1222 .

[0090] It should be noted that a locking structure 122 is provided on the first end 1213 and / or the second end 1214 of the pump head body 121, including: providing the locking structure 122 only at the first end 1213 of the pump head body 121; or providing the locking structure 122 only at the second end 1214 of the pump head body 121; or providing the locking structure 122 at both the first end 1213 and the second end 1214 of the pump head body 121.

[0091] Among them, the method of simultaneously providing the locking structure 122 at the first end 1213 and the second end 1214 of the pump head body 121 is compared with the method of providing the locking structure 122 only at the first end 1213 or the second end 1214. When the transmission shaft 111 rotates in the first direction, the effect of the pump head body 121 locking the transmission shaft 111 through the locking structure 122 will be more stable.

[0092] In addition, the number of locking structures 122 provided on the pump head body 121 may be one or more, and the locking effect of multiple locking structures 122 will be better than that of one locking structure 122 .

[0093] Specifically, one or more locking structures 122 may be provided at the first end 1213 and / or the second end 1214. When both the first end 1213 and the second end 1214 are provided with locking structures 122, the number of the locking structures 122 may be the same or different.

[0094] Furthermore, the locking structure 122 includes a groove 1212 and a movable member 1221. A groove 1212 can be provided at the first end 1213 of the pump head body 121, and multiple grooves 1212 can be provided at the second end 1214 of the pump head body 121, and a movable member 1221 can be provided in each groove to meet the locking connection between the pump head body 121 and the transmission shaft 111; or, multiple grooves 1212 can be provided at the first end 1213 of the pump head body 121, and multiple grooves 1212 can be provided at the second end 1214 of the pump head body 121. A plurality of grooves 1212 are provided at the second end 1214 of 121, and a movable part 1221 is provided in each groove to satisfy the locking connection between the pump head body 121 and the transmission shaft 111; alternatively, a plurality of grooves 1212 can be provided at the first end 1213 of the pump head body 121, and a groove 1212 can be provided at the second end 1214 of the pump head body 121, and a movable part 1221 is provided in each groove to satisfy the locking connection between the pump head body 121 and the transmission shaft 111.

[0095] In addition, when the locking structure 122 further includes a first elastic member 1222 , a first elastic member 1222 having one end connected to the movable member 1221 is further disposed in each groove.

[0096] In some embodiments, the pump head body 121 further includes a first assembly portion 12131 disposed at the first end portion 1213 and a second assembly portion 12141 disposed at the second end portion 1214; both ends of the extrusion member 123 are rotatably connected to the first assembly portion 12131 and the second assembly portion 12141 respectively;

[0097] The extruding member 123 is used to squeeze the consumables in the consumables transmission tube 124 for transmission when the pump head body 121 rotates in the first direction.

[0098] The first assembly portion 12131 may be an assembly hole or a flange structure formed by extending the first end portion 1213 ; the second assembly portion 12141 may be an assembly hole or a flange structure formed by extending the second end portion 1214 .

[0099] In some embodiments, the consumable transfer pump 10 includes a power structure 11 and a plurality of pump head modules 12 , and the plurality of pump head modules 12 are sequentially sleeved on a transmission shaft 111 of the power structure 11 .

[0100] Among them, each pump head module 12 includes a consumable material transmission tube 124, that is, each pump head module 12 can drive and transmit the consumables in its corresponding consumable material transmission tube 124, so that the consumable material transmission pump 10 can realize the transmission of multiple or multi-channel consumables.

[0101] Moreover, by providing a plurality of pump head modules 12 , the transmission efficiency of the consumables transmission pump 10 can be improved. That is, by using a plurality of pump head modules 12 to transmit consumables, the time used to transmit consumables of the same capacity can be shortened.

[0102] In addition, since each pump head module 12 includes a consumables transfer tube 124 , this can also avoid the problem of mutual contamination caused by residual consumables when the consumables transfer pump 10 transfers different types of consumables.

[0103] In some embodiments, one or more locking structures 122 may be provided on each pump head module 12 to ensure a locking connection between the pump head body 121 and the transmission shaft 111 .

[0104] Specifically, two or three locking structures 122 may be provided on the pump head module 12 to enhance the locking connection effect of the locking structure 122 on the pump head body 121 and the transmission shaft 111 .

[0105] In some embodiments, as Figure 14 and Figure 15 As shown, the locking structure 122 includes a wedge structure 1223 provided in the gap, and the wedge structure 1223 includes a first diagonal end 12231, a second diagonal end 12232, a third diagonal end 12233 and a fourth diagonal end 12234 distributed in sequence along the plane where the cross section of the gap is located. The first diagonal end 12231 and the second diagonal end 12232 are two diagonal ends of the wedge structure 1223 facing the inner wall of the shaft through hole 1211, and the second diagonal end 12232 and the first diagonal end 12231 are distributed in sequence along the first direction; the third diagonal end 12233 and the fourth diagonal end 12234 are two diagonal ends of the wedge structure 1223 facing the outer wall of the transmission shaft 111, and the third diagonal end 12233 and the fourth diagonal end 12234 are distributed in sequence along the first direction;

[0106] The distance between the first diagonal end 12231 and the third diagonal end 12233 is greater than the width of the gap, and the distance between the second diagonal end 12232 and the fourth diagonal end 12234 is less than the width of the gap.

[0107] In this embodiment, a wedge block structure 1223 is arranged in the gap between the inner wall of the shaft through hole 1211 and the outer wall of the transmission shaft 111, and the connecting distance from the first diagonal end 12231 to the third diagonal end 12233 of the wedge block structure 1223 is set to be greater than the gap, and the connecting distance from the second diagonal end 12232 to the fourth diagonal end 12234 is set to be less than the width of the gap, so that when the transmission shaft 111 rotates in the first direction, the wedge block structure 1223 can lock the pump head body 121 and the transmission shaft 111, thereby realizing the one-way rotation function of the pump head module 12.

[0108] In some embodiments, the locking structure also includes a second elastic member, the first end of the second elastic member is connected to the inner wall of the shaft through hole 1211, the second end of the second elastic member is connected to the wedge block structure 1223, and the second elastic member and the wedge block structure 1223 are distributed in sequence along the first direction.

[0109] In this embodiment, by setting a second elastic member, not only can the locking effect of the wedge block structure 1223 on the pump head body 121 and the transmission shaft 111 be improved, but also the movement smoothness of the wedge block structure 1223 can be improved, and the noise of the consumable transfer pump 10 during operation can be reduced.

[0110] In some embodiments, the locking structure provided in the pump head body 121 can also be a ramp, a roller and an elastic member in contact with the roller on the inner wall of the axial through hole 1211 of the pump head body 121 to achieve a locking connection between the pump head body 121 and the transmission shaft 111.

[0111] Specifically, when the drive shaft 111 rotates in a first direction, the roller can move in a direction where the movement space of the groove 1212 is narrower, so that the roller is stuck, thereby realizing a locking connection between the pump head body 121 and the drive shaft 111, and enabling the pump head body 121 to rotate together with the drive shaft 111; when the drive shaft 111 rotates in a second direction opposite to the first direction, the roller can move in a direction where the movement space of the groove 1212 is wider, that is, the roller will not be stuck, that is, the roller will not lock the pump head body 121 and the drive shaft 111, thereby enabling the pump head body 121 to be in a stationary state, that is, the pump head body 121 will not rotate together with the drive shaft 111.

[0112] It can be understood that when the pump head module 12 is provided with multiple sets of locking structures 122 for locking the pump head body 121 and the drive shaft 111, the locking structure 122 can be a combination of grooves and balls, or a combination of grooves, balls and elastic parts, or a combination of wedge structures and elastic parts.

[0113] For example, when the pump head module 12 is provided with three sets of locking structures, the three sets of locking structures can all be a combination of grooves and balls, or can all be a combination of ramps and rollers, or can all be wedge-type locking structures; or two sets of locking structures can be a combination of grooves and balls, and one set of locking structures can be a combination of ramps and rollers; or one set of locking structures can be a combination of grooves and balls, one set of locking structures can be a combination of ramps and rollers, and one set of locking structures can be a wedge-type locking structure. When both the first end 1213 and the second end 1214 of the pump head body 121 of the pump head module 12 are provided with locking structures, the specific combination of the locking structures of the first end 1213 and the second end 1214 can also be the same or different.

[0114] It is understandable that, when the pump head module 12 includes multiple sets of locking structures, the implementation methods of the multiple sets of locking structures include but are not limited to the above-mentioned methods.

[0115] In some embodiments, the consumable material transfer pump 10 further includes an oil-containing bearing 13 . The oil-containing bearing 13 is sleeved on the transmission shaft 111 , and each pump head module 12 may be provided with an oil-containing bearing 13 .

[0116] In this embodiment, by providing the oil-containing bearing 13 , the lubrication effect during the rotation of the transmission shaft 111 can be improved, thereby improving the output efficiency of the consumables transfer pump 10 .

[0117] In some embodiments, when the consumable transfer pump 10 includes multiple pump head modules 12 , the first directions of at least two pump head modules among the multiple pump head modules 12 are the same or opposite.

[0118] Among them, the first direction can be clockwise or counterclockwise, and the clockwise direction can also be called the forward direction, and the counterclockwise direction can be called the reverse direction; and the first directions corresponding to at least two pump head modules among the multiple pump head modules are the same or opposite, specifically, the first directions corresponding to at least two pump head modules are both clockwise or both counterclockwise, or one of at least two pump head modules is clockwise and the other is counterclockwise.

[0119] When the first directions of at least two pump head modules among the multiple pump head modules 12 are the same, for example, the multiple pump head modules 12 include a first pump head module and a second pump head module with the same first direction, and the first direction is counterclockwise, when the drive shaft 111 rotates counterclockwise, the locking structure of the first pump head module and the second pump head module locks the drive shaft 111, and then rotates counterclockwise along with the drive shaft 111, and the extrusion member 123 squeezes the consumables in the corresponding consumable transfer tube 124 for transmission.

[0120] It can be understood that the first directions of at least two pump head modules among the multiple pump head modules 12 are the same, which can enable the use of multiple pipelines to transport consumables and improve the efficiency of consumables transportation.

[0121] When the first directions of at least two pump head modules among the multiple pump head modules 12 are opposite, for example, the multiple pump head modules include a third pump head module and a fourth pump head module, the first direction of the third pump head module is clockwise, and the first direction of the fourth pump head module is counterclockwise; when the drive shaft 111 of the power structure of the consumable transfer pump rotates in the clockwise direction, the locking structure of the third pump head module locks the drive shaft 111, and the drive shaft 111 drives the third pump head module to rotate in the clockwise direction, and the extrusion piece 123 squeezes the consumables in the consumable transfer tube 124 corresponding to the third pump head module for transmission; when the drive shaft 111 of the power structure of the consumable transfer pump rotates in the counterclockwise direction, the locking structure of the fourth pump head module locks the drive shaft, and the drive shaft 111 drives the fourth pump head module to rotate in the counterclockwise direction, and the corresponding extrusion piece 123 squeezes the consumables in the consumable transfer tube 124 corresponding to the fourth pump head module for transmission.

[0122] It can be understood that the first directions of at least two pump head modules among the multiple pump head modules 12 are opposite, which can play the role of the transmission shaft 111 of the power structure to switch different pump head modules in forward and reverse rotation to transmit consumables; when different types of consumables are transmitted respectively, it further plays the role of forward and reverse rotation to switch different pump head modules to transmit different consumables, avoiding the use of the same pump head module to transmit different consumables, resulting in different consumables remaining in the transmission pipeline, causing mutual contamination.

[0123] It should be noted that whether the first direction is clockwise or counterclockwise, for the roller or ball or roller method, it can be achieved by setting the direction in which the groove 1212 is narrowed, that is, by setting the side wall structure 12121 or the vertical distance from the first side wall 121211 of the side wall structure 12121 to the first slot gradually becoming smaller to achieve whether the first direction is clockwise or counterclockwise; for the wedge block structure method, it can be achieved by setting the connection distance of the diagonal ends.

[0124] Furthermore, when the consumable material transfer pump 10 includes multiple pump head modules 12, there are various combinations of how the first directions of at least two of the multiple pump head modules are the same or opposite in actual use scenarios, which are not limited herein. For example, the consumable material transfer pump may include two pump head modules, and the first directions of the two pump head modules may be the same or different; or, for another example, the consumable material transfer pump may include three pump head modules, and two of the three pump head modules may have the same first direction, while the first direction of one other pump head module may be opposite to that of the other two.

[0125] The personal care device of the present application may be an electric toothbrush, a skin care device, an oral irrigator, etc. that can transmit and use consumables, and the consumables are toothpaste, skin care products, mouthwash, etc. The personal care device includes a consumable transfer pump, which includes a pump head module. The pump head module is provided with a locking structure 122, and the one-way locking function of the locking structure 122 is utilized to achieve unidirectional rotation of the pump head body 121, that is, the one-way rotation function of the pump head module 12 is achieved, that is, the rotation direction of the pump head module 12 is selectable. Compared with the conventional pump head module that needs to always follow the transmission shaft to rotate, the wear of the pump head module is effectively reduced.

[0126] When the consumables transmission pump of the personal care equipment includes multiple pump head modules, the locking structure 122 is set to ensure that the first directions of at least two pump head modules of the multiple pump head modules are the same or opposite. When the transmission shaft rotates in one direction, at least two pump head modules can be used at the same time to transmit consumables in multiple ways, thereby improving the transmission efficiency of the consumables. The transmission shaft can also be switched forward and reversely to switch different groups of pump head modules to transmit different types of consumables, thereby avoiding contamination of different types of consumables by each other.

[0127] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0128] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A pump head module, characterized in that: include: A pump head body and a locking structure provided on the pump head body, wherein the pump head body is provided with a shaft through-hole; the pump head body is sleeved on the transmission shaft of the power structure through the shaft through-hole, and a gap is provided between the inner wall of the shaft through-hole and the outer wall of the transmission shaft; When the transmission shaft rotates in a first direction, the pump head body is locked and connected to the transmission shaft via the locking structure, so that the pump head body rotates in the first direction following the transmission shaft.

2. The pump head module according to claim 1, characterized in that: The locking structure includes a movable member and a groove provided on the pump head body, wherein the groove includes a first notch located on the inner wall of the shaft through hole and a side wall structure connected to the first notch, and the movable member is at least partially located in the groove; The vertical distance from the side wall structure to the first notch gradually decreases along the first direction, so that when the transmission shaft rotates in the first direction, the side wall structure is locked and connected to the outer wall of the transmission shaft through the movable part.

3. The pump head module according to claim 2, characterized in that: The sidewall structure includes a first sidewall, a second sidewall, and a third sidewall connected in sequence, wherein an end of the first sidewall away from the second sidewall and an end of the third sidewall away from the second sidewall both extend to the first notch; The vertical distance from the first side wall to the first notch gradually decreases along the first direction, so that when the transmission shaft rotates in the first direction, the first side wall is locked and connected to the outer wall of the transmission shaft through the movable part.

4. The pump head module according to claim 3, characterized in that: The locking structure further includes a first elastic member, a first end of the first elastic member is connected to the first side wall or the third side wall, and a second end of the first elastic member is connected to the movable member.

5. The pump head module according to claim 4, characterized in that: The first side wall or the third side wall is provided with a second connecting portion adapted to the first elastic member, and the first end of the first elastic member is connected to the second connecting portion; Wherein, the second connecting portion is a receiving groove or a protruding column provided on the first side wall or the third side wall.

6. The pump head module according to any one of claims 2 to 5, characterized in that: The pump head body includes a first end, a second end, and a first connecting portion connecting the first end and the second end. The axial through hole is formed by passing through the first end, the connecting portion, and the second end. The locking structure is provided on the first end and / or the second end.

7. The pump head module according to claim 6, characterized in that: The pump head module further includes an extrusion member and a consumable material transmission tube, the pump head body includes a first assembly portion provided at the first end portion and a second assembly portion provided at the second end portion, and both ends of the extrusion member are rotatably connected to the first assembly portion and the second assembly portion respectively; The extrusion member is used to squeeze the consumables in the consumables transmission tube for transmission when the pump head body rotates in the first direction.

8. The pump head module according to claim 6, characterized in that: The movable part is one of a ball and a roller.

9. The pump head module according to claim 1, characterized in that: The locking structure includes a wedge structure arranged in the gap, the wedge structure including a first diagonal end, a second diagonal end, a third diagonal end and a fourth diagonal end sequentially distributed along the plane where the cross section of the gap is located, the first diagonal end and the second diagonal end are two diagonal ends of the wedge structure facing the inner wall of the shaft through hole, and the second diagonal end and the first diagonal end are sequentially distributed along the first direction; the third diagonal end and the fourth diagonal end are two diagonal ends of the wedge structure facing the outer wall of the transmission shaft, and the third diagonal end and the fourth diagonal end are sequentially distributed along the first direction; The distance between the first diagonal end and the third diagonal end is greater than the width of the gap, and the distance between the second diagonal end and the fourth diagonal end is less than the width of the gap.

10. The pump head module according to claim 9, characterized in that: The locking structure also includes a second elastic member, a first end of the second elastic member is connected to the inner wall of the shaft through hole, a second end of the second elastic member is connected to the wedge block structure, and the second elastic member and the wedge block structure are distributed in sequence along the first direction.

11. A consumable material transfer pump, characterized in that: It comprises a power structure and a pump head module as claimed in any one of claims 1 to 10.

12. The consumable material transfer pump according to claim 11, characterized in that: The consumable material transfer pump includes a plurality of pump head modules, which are sequentially sleeved on the transmission shaft of the power structure; the first directions of at least two pump head modules among the plurality of pump head modules are the same or opposite.

13. A personal care device, characterized in that: Comprising the consumable transfer pump as described in claim 11 or 12.

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