A movement and an oral care device

Abstract

The application provides a core and an oral care device. The core comprises a water pump structure, a transmission mechanism and a power source. The water pump structure comprises a pump body and a piston. The pump body is provided with a movable cavity, and the piston is movably arranged in the movable cavity. The transmission mechanism comprises a cam, a transmission member and a sliding member. The outer circumferential surface of the cam is provided with a driving groove arranged in a circumferential direction. The first end of the transmission member is slidably connected to the driving groove. The second end of the transmission member is connected to the sliding member. The sliding member can slide relative to the cam in a first direction. The output shaft of the power source is connected to the cam. The power source is used to drive the cam to rotate around the first direction, so that the cam drives the transmission member to reciprocate in the first direction. The first direction is the axial direction of the output shaft. The application can realize the gearless design of the transmission mechanism, the structure is relatively simple, which is conducive to the miniaturization design of the core and the reduction of the noise during the operation of the core.

Description

Technical Field

[0001] This application relates to the field of oral hygiene tools technology, and more particularly to a mechanism and oral care device. Background Technology

[0002] Oral care devices (such as water flossers and toothbrushes) usually have a rinsing function, which can clean areas that are difficult to reach with a toothbrush, such as between teeth and in the gingival sulcus.

[0003] Taking a water flosser as an example, a water flosser includes a mechanism and a water tank. The mechanism includes a water pump, a transmission mechanism, and a motor. The transmission mechanism converts the rotary motion output by the motor into reciprocating linear motion, which drives the piston of the water pump to reciprocate linearly. This allows the water pump to draw water from the tank and spray it out to rinse the teeth. The transmission mechanism of a water flosser typically uses a gear and linkage mechanism. The motor drives the drive gear to rotate, which in turn drives the linkage through the driven gear. The linkage then drives the piston to reciprocate linearly within the pump body.

[0004] However, the gear pair linkage mechanism has a relatively complex structure and occupies a large volume, which is not conducive to the miniaturization of the movement. It is also prone to wear during operation, which affects the service life of the movement. In addition, the movement using the gear pair linkage mechanism is noisier during operation, which affects the user experience. Utility Model Content

[0005] This utility model discloses a mechanism and oral care device that can realize a gearless design of the transmission mechanism, which is relatively simple in structure, conducive to the miniaturization design of the mechanism, and also helps to reduce the noise of the mechanism during operation.

[0006] To achieve the above objectives, in a first aspect, this application provides a mechanism for use in oral care devices, the mechanism comprising:

[0007] A water pump structure, the water pump structure including a pump body and a piston, the pump body having a movable cavity, and the piston being movably disposed in the movable cavity;

[0008] A transmission mechanism, comprising a cam, a transmission component, and a sliding component, wherein the outer peripheral surface of the cam is provided with a drive groove arranged circumferentially, a first end of the transmission component is slidably connected to the drive groove, a second end of the transmission component is connected to the sliding component, and the sliding component is slidable relative to the cam in a first direction;

[0009] A power source, the output shaft of which is connected to the cam, the power source being used to drive the cam to rotate around the first direction, so that the cam drives the transmission component to reciprocate along the first direction;

[0010] The first direction is the axial direction of the output shaft.

[0011] As an optional implementation, the transmission mechanism further includes a guide seat, which is disposed on the power source and spaced apart from the cam. The sliding member is slidably connected to the guide seat.

[0012] As an optional implementation, the guide seat is sleeved on the cam, and the guide seat is provided with a clearance groove for avoiding the reciprocating movement of the transmission member in the first direction. The sliding member is sleeved on the guide seat and is slidably connected to the outer peripheral surface of the guide seat.

[0013] As an optional implementation, the slider has a protrusion on the side facing the clearance groove, the clearance groove is configured as a sliding groove extending along the first direction, the protrusion is slidably connected to the sliding groove, and the clearance groove is also used to limit the position of the slider relative to the guide seat in the circumferential direction on the outer peripheral surface of the guide seat.

[0014] As an optional implementation, the movement further includes a mounting base disposed on the side of the power source having an output shaft. The mounting base has a cavity for accommodating the output shaft of the power source, and a guide seat is disposed on the mounting base.

[0015] As an optional implementation, the mounting base has multiple bosses on the side away from the power source, and the guide seat has multiple first mounting grooves on the side facing the mounting base, with the bosses engaging with the first mounting grooves.

[0016] As an optional implementation, the sliding member includes a main body portion and a fixed portion connected to each other. The main body portion is provided with a first recessed portion, and the fixed portion is provided with a second recessed portion. The first recessed portion and the second recessed portion are correspondingly arranged in the first direction, and the walls of the first recessed portion and the second recessed portion together clamp the second end of the transmission member.

[0017] As an optional implementation, the main body is provided with a slot, and the fixing part is provided with a locking part protruding therefrom. The locking part is engaged with the slot to limit the position of the fixing part relative to the main body in the first direction.

[0018] As an optional implementation, the main body is provided with a second mounting groove to form a mounting surface on the main body, the mounting surface is provided with a first mounting hole, and the fixing part is provided with a second mounting hole communicating with the first mounting hole;

[0019] The transmission mechanism further includes fasteners that pass through the first mounting hole and the second mounting hole to fasten the main body and the fixed part along the first direction, and the second mounting groove is used to avoid the fasteners.

[0020] Secondly, this application provides an oral care device, the oral care device comprising the mechanism described in the first aspect above.

[0021] Compared with the prior art, the movement provided in this application has the following main advantages:

[0022] By setting a transmission mechanism including a cam, a transmission component, and a sliding component, the sliding component, being slidably arranged relative to the cam along a first direction and connected to the second end of the transmission component, restricts the transmission component from moving in the first direction. The power source can drive the cam to rotate around the first direction. Through the sliding engagement between the cam's drive groove and the first end of the transmission component, the rotational motion output by the power source to the cam can be converted into the reciprocating linear motion of the transmission component and the sliding component. The sliding component can drive the piston to achieve reciprocating linear motion, thereby realizing the water pump's suction and spraying actions. Using the mechanism of this application, a gearless design of the transmission mechanism can be achieved. The structure of the transmission mechanism is relatively simple, and the volume occupied is relatively small, which is conducive to the miniaturization design of the mechanism. Furthermore, the transmission mechanism operates with a sliding engagement, without gear meshing, which reduces wear and improves the service life of the mechanism. Simultaneously, it helps reduce noise during operation, improving the user experience. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the movement (without the housing) disclosed in the first aspect of the embodiments of this application;

[0025] Figure 2 yes Figure 1 A cross-sectional view of the movement in the AA direction;

[0026] Figure 3 yes Figure 2 An enlarged view of section S;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of the mounting base disclosed in the first aspect of the embodiments of this application;

[0028] Figure 5This is a three-dimensional structural schematic diagram of the guide seat disclosed in the first aspect of the embodiments of this application;

[0029] Figure 6 This is a three-dimensional structural schematic diagram of the guide seat disclosed in the first aspect of the embodiments of this application from another perspective;

[0030] Figure 7 This is an exploded perspective view of the sliding member disclosed in the first aspect of the embodiments of this application;

[0031] Figure 8 This is a three-dimensional exploded view of the slider disclosed in the first aspect of the embodiments of this application;

[0032] Figure 9 This is a three-dimensional structural schematic diagram of the cam disclosed in the first aspect of the embodiments of this application;

[0033] Figure 10 This is a three-dimensional structural schematic diagram of the movement disclosed in the first aspect of the embodiments of this application;

[0034] Figure 11 This is a three-dimensional structural schematic diagram of the oral care device disclosed in the second aspect of the embodiments of this application.

[0035] icon:

[0036] 1. Movement;

[0037] 10. Pump structure; 100. Pump body; 100a. Moving chamber; 101. Piston;

[0038] 11. Transmission mechanism;

[0039] 110, Cam; 110a, Drive slot; 1100, First contact end; 1101, Second contact end;

[0040] 111, Transmission component; 111a, First end; 111b, Second end;

[0041] 112. Sliding component; 1120. Main body; 1120a. First recess; 1120b. Slot; 1120c. Second mounting slot; 1120d. Mounting surface; 1120e. First mounting hole; 1121. Fixing part; 1121a. Second recess; 1121b. Engaging part; 1121c. Second mounting hole; 1122. Protrusion; 1122a. First protrusion; 1122b. Second protrusion;

[0042] 113. Guide seat; 1130. Guide part; 1130a. Clearance groove; 1131. Mounting part; 1131a. First mounting groove;

[0043] 114. Connecting seat;

[0044] 115. Connecting rod;

[0045] 12. Power source; 120. Output shaft;

[0046] 13. Mounting base; 13a. Cavity; 13b. Boss;

[0047] 14. Shell;

[0048] 2. Oral care equipment; 20. Casing; 21. Nozzle;

[0049] X, the first direction. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0051] The technical solution of this utility model will be further described below with reference to the embodiments and accompanying drawings.

[0052] Please refer to the following: Figures 1 to 3 The first aspect of this utility model provides a mechanism 1, which is applied to an oral care device. The mechanism 1 includes a water pump structure 10, a transmission mechanism 11, and a power source 12. The water pump structure 10 includes a pump body 100 and a piston 101. The pump body 100 is provided with a movable cavity 100a, and the piston 101 is movably disposed in the movable cavity 100a. The transmission mechanism 11 includes a cam 110, a transmission member 111, and a sliding member 112. The outer peripheral surface of the cam 110 is provided with a drive groove 110a arranged circumferentially. The first end 111a of the transmission member 111 is slidably connected to the drive groove 110a, and the second end 111b of the transmission member 111 is connected to the sliding member 112. The sliding member 112 can slide relative to the cam 110 along a first direction X. The output shaft 120 of the power source 12 is connected to the cam 110. The power source 12 is used to drive the cam 110 to rotate around the first direction X, so that the cam 110 drives the transmission member 111 to reciprocate along the first direction X.

[0053] The mechanism 1 provided in the first aspect of this utility model provides a transmission mechanism 11 including a cam 110, a transmission member 111, and a sliding member 112. Since the sliding member 112 is slidably disposed relative to the cam 110 along the first direction X and is connected to the second end 111b of the transmission member 111, it can restrict the transmission member 111 from moving in the first direction X. The power source 12 can drive the cam 110 to rotate around the first direction X. Through the sliding engagement between the drive groove 110a of the cam 110 and the first end 111a of the transmission member 111, the rotational motion output by the power source 12 to the cam 110 can be converted into the reciprocating linear motion of the transmission member 111 and the sliding member 112. The sliding member 112 can drive the piston 101 to achieve reciprocating linear motion, thereby realizing the water pump structure 10's water suction and water spraying actions. The movement 1 of this application enables a gearless design of the transmission mechanism 11. The structure of the transmission mechanism 11 is relatively simple and the volume it occupies is relatively small, which is conducive to the miniaturization of the movement 1. In addition, the transmission mechanism 11 is a sliding fit without gear meshing during operation, which is not easy to wear and helps to improve the service life of the movement 1. At the same time, it helps to reduce the noise of the movement 1 during operation and improve the user experience.

[0054] It is understandable that the first direction X is parallel to the axis of the output shaft 120.

[0055] Optionally, the power source 12 can be an electric motor, a hydraulic motor, or a pneumatic motor, etc., and the specific choice can be made according to the actual situation. In this embodiment, no specific limitation is made. When the power source 12 is an electric motor, the output shaft 120 is the rotating shaft of the motor.

[0056] Optionally, the transmission component 111 may be a columnar structure or a block structure, etc., and the specific choice can be made according to the actual situation. In this embodiment, no specific limitation is made.

[0057] In some embodiments, the transmission mechanism 11 further includes a connecting seat 114 and a connecting rod 115. The connecting seat 114 is sleeved on the sliding member 112, and the connecting rod 115 extends along a first direction X. One end of the connecting rod 115 in the first direction X is connected to the connecting seat 114, and the other end of the connecting rod 115 in the first direction X is connected to the piston 101. The connecting rod 115 and the connecting seat 114 are used to transmit the power of the sliding member 112 to the piston 101, thereby realizing the reciprocating motion of the piston 101 in the first direction X.

[0058] In some embodiments, the transmission mechanism 11 further includes a guide seat 113, which is disposed on the power source 12 and spaced apart from the cam 110. The slider 112 is slidably connected to the guide seat 113.

[0059] By setting the guide seat 113, the guide seat 113 can guide the sliding of the slider 112 in the first direction X, ensuring that the slider 112 can move in the first direction X.

[0060] Optionally, in order to achieve sliding engagement between the slider 112 and the guide seat 113, the slider 112 can be a slider and the guide seat 113 can be a guide rail, or the slider 112 can be a bushing and the guide seat 113 can be a guide shaft, etc. The specific selection can be made according to the actual situation, and no specific limitation is made in this embodiment.

[0061] In some embodiments, the guide seat 113 is sleeved on the cam 110, and the guide seat 113 is provided with a relief groove 1130a. The relief groove 1130a is used to avoid the reciprocating movement of the transmission member 111 in the first direction X. The sliding member 112 is sleeved on the guide seat 113 and is slidably connected to the outer peripheral surface of the guide seat 113.

[0062] By fitting the guide seat 113 onto the cam 110, the space around the cam 110 can be effectively utilized. The sliding member 112, fitted onto the guide seat 113, achieves a hole-shaft fit, which improves the stability of the sliding member 112's movement in the first direction X. Simultaneously, by providing a clearance groove 1130a on the guide seat 113, the transmission member 111 can be avoided, ensuring that the guide seat 113 fitted onto the cam 110 does not affect the movement of the transmission member 111, which mates with the drive groove 110a, in the first direction X.

[0063] Optionally, when the slider 112 is sleeved on the guide seat 113, the slider 112 can be a tubular structure or a cover-like structure, etc., and can be selected according to the actual situation. In this embodiment, no specific limitation is made.

[0064] Please see Figure 4 In some embodiments, the mechanism 1 further includes a mounting base 13, which is located on the side of the power source 12 having an output shaft 120. The mounting base 13 has a cavity 13a for avoiding the output shaft 120 of the power source 12. A guide seat 113 is located on the mounting base 13.

[0065] By providing the mounting base 13, the guide seat 113 can be easily fixedly installed, and the cavity 13a of the mounting base 13 can avoid the output shaft 120 of the power source 12, so as not to affect the connection between the output shaft 120 and the cam 110. At the same time, the mounting base 13 allows the guide seat 113 and the power source 12 to be spaced apart in the first direction X, reducing the impact of the vibration of the power source 12 during operation on the sliding fit between the guide seat 113 and the slider 112.

[0066] In other embodiments, when the movement 1 is provided with a housing, the guide seat 113 can also be directly installed on the housing.

[0067] Please refer to the following: Figure 4 and Figure 5 In some embodiments, the mounting base 13 is provided with a plurality of protrusions 13b on the side away from the power source 12, and the guide seat 113 is provided with a plurality of first mounting grooves 1131a on the side facing the mounting base 13, and the protrusions 13b are engaged with the first mounting grooves 1131a.

[0068] By providing multiple bosses 13b on the side of the mounting base 13 away from the power source 12, and providing multiple first mounting grooves 1131a on the side of the guide seat 113 facing the mounting base 13, the bosses 13b can engage with the first mounting grooves 1131a, so that the guide seat 113 is fixed relative to the mounting base 13 in the circumferential direction around the first direction X, thus preventing the guide seat 113 from rotating relative to the first direction X, which would cause the sliding member 112 to also rotate relative to the first direction X, thereby affecting the normal cooperation between the transmission member 111 and the cam 110.

[0069] For example, the number of bosses 13b and first mounting grooves 1131a can be two, three or four, etc., and can be selected according to the actual situation. In this embodiment, no specific limitation is made.

[0070] In other embodiments, a plurality of first mounting slots 1131a may be provided on the mounting base 13, and a plurality of bosses 13b may be provided on the guide seat 113.

[0071] Please refer to the following: Figure 5 and Figure 6 In some embodiments, the guide seat 113 includes a guide portion 1130 and a mounting portion 1131 connected to each other. The slider 112 is sleeved on the guide portion 1130, and the clearance groove 1130a is disposed on the guide portion 1130. The guide portion 1130 is used to guide the slider 112. The first mounting groove 1131a is disposed on the mounting portion 1131, and the mounting portion 1131 is used to install with the mounting seat 13.

[0072] In some embodiments, the projection of the guide portion 1130 onto the mounting portion 1131 along the first direction X is located within the mounting portion 1131.

[0073] This allows the mounting portion 1131 to have a larger area on the plane perpendicular to the first direction X for installation with the mounting base 13, improving the installation and fixing effect. At the same time, the area of ​​the guide portion 1130 on the plane perpendicular to the first direction X is relatively smaller than that of the mounting portion 1131, allowing the peripheral space of the guide portion 1130 to be used to accommodate the sliding member 112 without increasing the overall size of the movement 1 in the direction perpendicular to the first direction X, which is beneficial to the miniaturization design of the movement 1 as a whole.

[0074] Please refer to the following: Figure 7 and Figure 8 In some embodiments, the slider 112 is provided with a protrusion 1122 on the side facing the relief groove 1130a. The relief groove 1130a is configured as a sliding groove extending along a first direction X. The protrusion 1122 is slidably connected to the sliding groove. The relief groove 1130a is also used to limit the position of the slider 112 relative to the guide seat 113 in the circumferential direction of the outer peripheral surface of the guide seat 113.

[0075] By providing a protrusion 1122 on the slider 112 and configuring the clearance groove 1130a as a sliding groove extending along the first direction X, the sliding engagement between the protrusion 1122 and the sliding groove allows the slider 112 to slide relative to the guide seat 113 along the first direction X while limiting the circumferential position of the slider 112 relative to the guide seat 113 on the outer peripheral surface of the guide seat 113. This prevents the slider 112 from rotating relative to the guide seat 113 during the operation of the movement 1, thus avoiding interference with the normal engagement between the transmission member 111 and the cam 110. Furthermore, the clearance groove 1130a achieves the functions of clearing the transmission member 111, sliding engagement with the slider 112, and limiting the circumferential position of the slider 112 relative to the guide seat 113 on the outer peripheral surface of the guide seat 113. This achieves structural reuse and simplifies the structure of the slider 112.

[0076] Optionally, the opening shape of the clearance groove 1130a can be rectangular or racetrack-shaped, etc., and can be selected according to the actual situation. In this embodiment, no specific limitation is made.

[0077] In some embodiments, the slider 112 includes a main body portion 1120 and a fixed portion 1121 connected to each other. The main body portion 1120 is provided with a first recess 1120a, and the fixed portion 1121 is provided with a second recess 1121a. The first recess 1120a and the second recess 1121a are correspondingly arranged in a first direction X. The walls of the first recess 1120a and the second recess 1121a together clamp the second end 111b of the transmission member 111.

[0078] Optionally, the first recess 1120a and the second recess 1121a can be enclosed to form a through hole or a blind hole. The specific choice can be made according to the actual situation, and no specific limitation is made in this embodiment.

[0079] By configuring the slider 112 as a main body 1120 and a fixed part 1121, the walls of the first recess 1120a of the main body 1120 and the second recess 1121a of the fixed part 1121 can jointly clamp and fix the slider 112, ensuring the stability of the connection between the transmission member 111 and the slider 112, thereby improving the stability of the movement of the transmission member 111 and the slider 112 in the first direction X. Furthermore, since there may be machining errors in the transmission member 111, slider 112, etc., during actual production, by adjusting the distance between the main body 1120 and the fixed part 1121 when they are connected, the distance between the walls of the first recess 1120a and the second recess 1121a can be adjusted, thereby ensuring that the transmission member 111 can be inserted between the first recess 1120a and the second recess 1121a, and that the first recess 1120a and the second recess 1121a can clamp the transmission member 111 well.

[0080] It is understood that when the slider 112 includes a main body portion 1120 and a fixed portion 1121, the protrusion 1122 includes a first protrusion 1122a and a second protrusion 1122b. The first protrusion 1122a is provided on the side of the main body portion 1120 facing the clearance groove 1130a, and the second protrusion 1122b is provided on the side of the fixed portion 1121 facing the clearance groove 1130a.

[0081] In some embodiments, the main body portion 1120 is provided with a slot 1120b, and the fixing portion 1121 is provided with a engaging portion 1121b. The engaging portion 1121b engages with the slot 1120b to limit the position of the fixing portion 1121 relative to the main body portion 1120 in the first direction X.

[0082] The engagement of the slot 1120b and the engaging part 1121b enables the assembly of the main body 1120 and the fixed part 1121, and restricts the position of the fixed part 1121 relative to the main body 1120 in the first direction X, which is beneficial for better clamping of the transmission member 111, and at the same time prevents the fixed part 1121 from detaching from the main body 1120 in the first aspect.

[0083] It is understandable that, in order to adjust the distance between the walls of the first recess 1120a and the second recess 1121a, the size of the engaging portion 1121b in the first direction X can be smaller than the size of the slot 1120b in the first direction X.

[0084] In other embodiments, a slot 1120b may be provided on the fixed portion 1121, and a engaging portion 1121b may be provided on the main body portion 1120.

[0085] In some embodiments, the main body portion 1120 is provided with a second mounting groove 1120c to form a mounting surface 1120d on the main body portion 1120. The mounting surface 1120d is provided with a first mounting hole 1120e. The fixing portion 1121 is provided with a second mounting hole 1121c communicating with the first mounting hole 1120e. The transmission mechanism 11 also includes a fastener (not shown), which passes through the first mounting hole 1120e and the second mounting hole 1121c to fasten the main body portion 1120 and the fixing portion 1121 along the first direction X. The second mounting groove 1120c is used to avoid the fastener.

[0086] It is understood that the second mounting groove 1120c can be opened on the main body 1120 along the first direction X, and the bottom surface of the second mounting groove 1120c is the mounting surface 1120d formed on the main body 1120.

[0087] By providing a second mounting groove 1120c on the main body 1120, the second mounting groove 1120c can reserve installation space for fasteners. Simultaneously, the second mounting groove 1120c forms a mounting surface 1120d on the main body 1120, which facilitates the opening of the first mounting hole 1120e. By providing fasteners that pass through the first mounting hole 1120e and the second mounting hole 1121c, the main body 1120 and the fixing part 1121 can be securely fastened, preventing the fixing part 1121 from detaching from the main body 1120 and affecting the clamping of the transmission component 111.

[0088] Optionally, the fastener may be a screw, bolt, or pin, etc., and the specific choice can be made according to the actual situation. In this embodiment, no specific limitation is made.

[0089] Preferably, the fastener can be a screw or bolt, and the second mounting hole 1121c can be a threaded hole. The distance between the main body 1120 and the fixed part 1121 can be adjusted by adjusting the number of engagement turns between the fastener and the second mounting hole 1121c, which is convenient to use. The fastener also realizes the functions of fixing the main body 1120 and the fixed part 1121 and adjusting the distance between the main body 1120 and the fixed part 1121, realizing the structural reuse of the fastener and simplifying the structure of the transmission mechanism 11.

[0090] Optionally, the number of fasteners, first mounting holes 1120e, and second mounting holes 1121c can be one or more, and the specific number can be selected according to the actual situation. In this embodiment, no specific limitation is made. For example, the number of fasteners, first mounting holes 1120e, and second mounting holes 1121c can all be two. The two first mounting holes 1120e on the main body portion 1120 and the two second mounting holes 1121c on the fixing portion 1121 are arranged in a direction perpendicular to the first direction X.

[0091] Optionally, the number of second mounting slots 1120c can be one or more, which can be selected according to the actual situation and is not specifically limited in this embodiment. When there are multiple fasteners, first mounting holes 1120e and second mounting holes 1121c, the number of second mounting slots 1120c can be set to correspond to the number of fasteners, or only one second mounting slot 1120c can be set to avoid multiple fasteners at the same time.

[0092] Please see Figure 9 In some embodiments, the drive groove 110a is provided with a first contact end 1100 away from the pump body 100 and a second contact end 1101 close to the pump body 100 along the first direction X. The first end 111a of the transmission member 111 reciprocates between the first contact end 1100 and the second contact end 1101 of the drive groove 110a to drive the sliding member 112 to reciprocate along the first direction X.

[0093] When the cam 110 rotates around the first direction X, the drive groove 110a provided on the outer peripheral surface of the cam 110 also rotates around the first direction X. When the first end 111a of the transmission member 111 is located at the second contact end 1101 of the drive groove 110a, the drive groove 110a continues to rotate, and the transmission member 111 moves away from the pump body 100 under the action of the drive groove 110a, and drives the sliding member 112 to move away from the pump body 100; when the first end 111a of the transmission member 111 is located at the first contact end 1100 of the drive groove 110a, the drive groove 110a continues to rotate, and the first end 111a of the transmission member 111 moves closer to the pump body 100 under the action of the drive groove 110a, and drives the piston 101 to move closer to the pump body 100. Therefore, as the cam 110 continues to rotate, the first end 111a of the transmission member 111 can reciprocate between the first contact end 1100 and the second contact end 1101, thereby enabling the slider 112 to reciprocate.

[0094] It is understandable that the distance between the first contact end 1100 and the second contact end 1101 in the first direction X is used to limit the travel of the transmission member 111 in the first direction X.

[0095] Please see Figure 10In some embodiments, the mechanism 1 further includes a housing 14, within which the pump structure 10, transmission mechanism 11, and power source 12 are housed. The housing 14 serves to accommodate and protect components such as the pump structure 10, transmission mechanism 11, and power source 12, while also facilitating their installation and fixation.

[0096] Please see Figure 11 The second aspect of this utility model provides an oral care device 2, which includes a mechanism 1 as described in the first aspect of the above embodiments.

[0097] The oral care device 2 provided in the second aspect of the present invention is equipped with the mechanism 1 provided in the first aspect of the present invention. The mechanism 1 is provided with a transmission mechanism 11 including a cam 110, a transmission member 111 and a sliding member 112. Since the sliding member 112 is slidably arranged relative to the cam 110 along the first direction X and is connected to the second end 111b of the transmission member 111, it can restrict the transmission member 111 from moving in the first direction X. The power source 12 can drive the cam 110 to rotate around the first direction X. Through the sliding cooperation between the drive groove 110a of the cam 110 and the first end 111a of the transmission member 111, the rotational motion output by the power source 12 to the cam 110 can be converted into the reciprocating linear motion of the transmission member 111 and the sliding member 112. The sliding member 112 can drive the piston 101 to achieve reciprocating linear motion, thereby realizing the water pump structure 10's water suction and water spraying action. The oral care device 2 of this application can achieve a gearless design of the transmission mechanism 11. The structure of the transmission mechanism 11 is relatively simple and the volume occupied is relatively small, which is conducive to the miniaturization design of the oral care device 2. Moreover, the transmission mechanism 11 is a sliding fit without gear meshing during operation, which is not easy to wear and helps to improve the service life of the oral care device 2. At the same time, it helps to reduce the noise of the oral care device 2 during operation and improve the user experience.

[0098] In one specific embodiment, the oral care device 2 is a water flosser. It is understood that the oral care device 2 can also be an electric toothbrush with a rinsing effect, or other oral health care devices with rinsing functions.

[0099] In some embodiments, the oral care device 2 also includes a water tank (not shown) connected to the inlet of the pump body 100. The water tank is used to store liquids (such as water, mouthwash, or medication), and the pump structure 10 is capable of drawing liquids from the water tank.

[0100] In some embodiments, the oral care device 2 further includes a housing 20, within which the mechanism 1 is disposed. The housing 20 is used to house and protect components of the oral care device 2, such as the mechanism 1 and the water tank.

[0101] In some embodiments, the oral care device 2 further includes a nozzle 21 connected to the outlet of the pump body 100. The pump body 100 pumps liquid from the nozzle 21. When in use, the user can point the nozzle 21 toward the mouth, so that the pumped liquid is sprayed directionally into the user's mouth to achieve oral cleaning.

[0102] The above provides a detailed description of the mechanism and oral care device disclosed in the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the mechanism and oral care device of this utility model and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A movement, characterized in that, The mechanism is used in oral care equipment, and the mechanism includes: A water pump structure, the water pump structure including a pump body and a piston, the pump body having a movable cavity, and the piston being movably disposed in the movable cavity; A transmission mechanism, comprising a cam, a transmission component, and a sliding component, wherein the outer peripheral surface of the cam is provided with a drive groove arranged circumferentially, a first end of the transmission component is slidably connected to the drive groove, a second end of the transmission component is connected to the sliding component, the sliding component is slidably arranged relative to the cam along a first direction, and the sliding component is connected to the piston; A power source, the output shaft of which is connected to the cam, the power source being used to drive the cam to rotate around the first direction, so that the cam drives the transmission component to reciprocate along the first direction; The first direction is the axial direction of the output shaft.

2. The movement according to claim 1, characterized in that, The transmission mechanism further includes a guide seat, which is disposed on the power source and spaced apart from the cam. The sliding member is slidably connected to the guide seat.

3. The movement according to claim 2, characterized in that, The guide seat is sleeved on the cam, and the guide seat is provided with a clearance groove. The clearance groove is used to avoid the reciprocating movement of the transmission component in the first direction. The sliding component is sleeved on the guide seat and is slidably connected to the outer peripheral surface of the guide seat.

4. The movement according to claim 3, characterized in that, The slider has a protrusion on the side facing the clearance groove. The clearance groove is configured as a sliding groove extending along the first direction. The protrusion is slidably connected to the sliding groove. The clearance groove is also used to limit the position of the slider relative to the guide seat in the circumferential direction on the outer peripheral surface of the guide seat.

5. The movement according to claim 2, characterized in that, The mechanism also includes a mounting base, which is located on the side of the power source with an output shaft. The mounting base has a cavity for avoiding the output shaft of the power source, and a guide seat is located on the mounting base.

6. The movement according to claim 5, characterized in that, The mounting base has multiple protrusions on the side away from the power source, and the guide seat has multiple first mounting slots on the side facing the mounting base. The protrusions are engaged with the first mounting slots.

7. The movement according to any one of claims 1-6, characterized in that, The sliding member includes a main body part and a fixed part connected to each other. The main body part is provided with a first recessed portion, and the fixed part is provided with a second recessed portion. The first recessed portion and the second recessed portion are correspondingly arranged in the first direction. The walls of the first recessed portion and the second recessed portion together clamp the second end of the transmission member.

8. The movement according to claim 7, characterized in that, The main body is provided with a slot, and the fixing part is provided with a locking part protruding on it. The locking part is engaged with the slot to limit the position of the fixing part relative to the main body in the first direction.

9. The movement according to claim 7, characterized in that, The main body is provided with a second mounting groove to form a mounting surface on the main body, the mounting surface is provided with a first mounting hole, and the fixing part is provided with a second mounting hole communicating with the first mounting hole; The transmission mechanism further includes fasteners that pass through the first mounting hole and the second mounting hole to fasten the main body and the fixed part along the first direction, and the second mounting groove is used to avoid the fasteners.

10. An oral care device, characterized in that, The oral care device includes the mechanism as described in any one of claims 1-9.

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