Water pump structure and water pick

Abstract

The utility model provides a water pump structure and a water pick, and relates to the technical field of oral cavity cleaning equipment. The water pump structure comprises a pump body, a sleeve, a piston assembly and a driving assembly. At least one part of the sleeve is arranged in the pump body, and a movable cavity is formed in the sleeve; the piston assembly comprises a piston and a connecting piece; one end of the connecting piece is connected with the piston, and the piston is arranged in the movable cavity and is in sliding fit with the inner wall of the movable cavity; the driving assembly comprises a seat body, a cam, a connecting rod and a driving piece; one end of the cam is fixed on the seat body, and the cam is rotationally arranged in the connecting rod; a sliding groove is formed in the connecting rod, and a protruding block is arranged at the end, away from the base body, of the cam and is in sliding fit with the inner wall of the sliding groove. The connecting rod is connected with one end of the connecting piece away from the piston; the output end of the driving part penetrates through the seat body and is fixedly connected with the seat body; the forming direction of the sliding groove is the same as the moving direction of the piston in the movable cavity. The water pump structure can effectively reduce noise generated during working.

Description

Technical Field

[0001] The present application relates to the technical field of oral cleaning equipment, and in particular to a water pump structure and an oral irrigator. Background Art

[0002] The water flosser is an auxiliary tool for cleaning the oral cavity. It can use pulsed water flow to clean the teeth and the gaps between teeth.

[0003] At present, the water pump structure of the existing oral irrigator usually adopts a gear transmission structure to drive the piston to reciprocate. However, the gear transmission structure has a problem of high noise when working, which in turn affects the user experience. Utility Model Content

[0004] In order to overcome the deficiencies in the prior art, the present application provides a water pump structure and a water flosser.

[0005] This application provides the following technical solutions:

[0006] In a first aspect, the present application provides a water pump structure, the water pump structure comprising:

[0007] Pump body;

[0008] A sleeve, at least a portion of which is disposed within the pump body, and the sleeve has an active cavity therein;

[0009] A piston assembly, the piston assembly comprising a piston and a connecting piece; one end of the connecting piece is connected to the piston, the piston is disposed in the active cavity and slidably cooperates with the inner wall of the active cavity;

[0010] A driving assembly, the driving assembly comprises a seat body, a cam, a connecting rod and a driving member; one end of the cam is fixed on the seat body, and the cam is rotatably arranged in the connecting rod; a sliding groove is provided on the connecting rod, and a protrusion is provided on the end of the cam away from the seat body, and the protrusion is slidably matched with the inner wall of the sliding groove; the connecting rod is connected to the end of the connecting member away from the piston; the output end of the driving member is passed through the seat body and fixedly connected to the seat body;

[0011] The opening direction of the slide groove is the same as the moving direction of the piston in the active chamber;

[0012] When the output end drives the seat body to rotate, the cam rotating in the connecting rod can drive the connecting rod to perform reciprocating motion.

[0013] In a possible embodiment, the driving assembly also includes a fixing member; a fixing hole and a connecting hole are respectively opened on the base body, and the fixing hole and the connecting hole are communicated; the output end is arranged in the connecting hole; the fixing member is fixed in the fixing hole, and one end of the fixing member is abutted against the output end.

[0014] In a possible implementation manner, a supporting surface is provided on the output end, and one end of the fixing member is supported on the supporting surface.

[0015] In a possible implementation manner, the driving assembly further includes a blocking member, which blocks the opening of the fixing hole, and an end of the fixing member away from the output end abuts against the blocking member.

[0016] In a possible implementation, an outer surface of the fixing member is provided with an external thread, and an inner wall of the fixing hole is provided with an internal thread corresponding to the external thread; the fixing member is threadedly matched with the inner wall of the fixing hole.

[0017] In a possible implementation manner, the connecting member has a first connecting end and a second connecting end opposite to each other, the first connecting end is connected to the piston, and the second connecting end is connected to the connecting rod.

[0018] In a possible implementation manner, the second connecting end and the connecting rod are integrally formed.

[0019] In a possible implementation manner, a first cavity is defined on the connecting rod, and the second connecting end is clamped in the first cavity.

[0020] In a possible implementation manner, the axis of the output end is colinearly arranged with the axis of the protrusion.

[0021] In a second aspect, the present application also provides a water flosser, comprising the above-mentioned water pump structure.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The water pump structure provided by the present application has an output end of a driving member that can drive the seat body to rotate, so that the seat body drives the cam to rotate in the connecting rod, and then the cam can drive the connecting rod to reciprocate. When the connecting rod reciprocates, it can drive the piston to reciprocate in the active cavity through the connecting member, and when the connecting rod reciprocates, the cam on the cam cooperates with the inner wall of the slide groove opened on the connecting rod to limit the moving direction of the connecting rod. Since the opening direction of the slide groove is the same as the moving direction of the piston in the active cavity, the collision between the piston and the inner wall of the active cavity can be effectively reduced, thereby reducing the generation of abnormal noise. Compared with the gear transmission method used in the prior art, the water pump structure of the present application drives the piston to move, which can effectively reduce the noise generated during operation.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and understandable, preferred embodiments are given below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 An exploded schematic diagram of a water pump structure according to an embodiment of the present application is shown;

[0027] Figure 2 A three-dimensional schematic diagram of a water pump structure according to an embodiment of the present application is shown;

[0028] Figure 3 A three-dimensional structural schematic diagram of a seat body and a cam according to an embodiment of the present application is shown;

[0029] Figure 4 A schematic diagram of the three-dimensional structure of a connecting rod according to an embodiment of the present application is shown;

[0030] Figure 5 A schematic diagram of the three-dimensional structure of a connecting piece according to an embodiment of the present application is shown;

[0031] Figure 6 A three-dimensional structural schematic diagram of a water pump structure according to another embodiment of the present application is shown.

[0032] Description of main component symbols:

[0033] 100-water pump structure; 110-pump body; 120-sleeve; 121-fixing groove; 130-piston; 131-protrusion; 140-connecting piece; 141-body; 142-first connecting end; 1421-first connecting part; 1422-second connecting part; 1423-third connecting part; 143-second connecting end; 144-seal; 150-driving assembly; 151-driving piece; 1511-output end; 1511a-supporting surface; 152-seat; 1521-fixing hole; 153-cam; 1531-bump; 1532-functional groove; 154-connecting rod; 1541-slide groove; 1542-first cavity; 1543-second cavity; 155-fixing piece. DETAILED DESCRIPTION

[0034] The embodiments of the present application are described in detail below, and 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 cannot be understood as limiting the present application.

[0035] 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 referred device or element 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.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] Embodiment 1

[0040] See also Figure 1 and Figure 2 In one embodiment of the present application, a water pump structure 100 is provided. The water pump structure 100 is used in a water flosser.

[0041] See also Figure 1 The water pump structure 100 includes a pump body 110 , a sleeve 120 , a piston assembly and a driving assembly 150 .

[0042] The pump body 110 is connected to the water tank of the oral irrigator; at least a portion of the sleeve 120 is disposed in the pump body 110 , and a movable cavity is provided inside the sleeve 120 .

[0043] The piston assembly includes a piston 130 and a connecting member 140 ; ​​one end of the connecting member 140 is connected to the piston 130 , and the piston 130 is disposed in the active cavity and slidably cooperates with the inner wall of the active cavity.

[0044] The connecting member 140 can drive the piston 130 to reciprocate in the movable chamber so as to extract the liquid in the water tank of the oral irrigator through the pump body 110 .

[0045] The driving assembly 150 includes a seat body 152, a cam 153, a connecting rod 154 and a driving member 151; one end of the cam 153 is fixed on the seat body 152, and the cam 153 is rotatably disposed in the connecting rod 154; the connecting rod 154 is connected to one end of the connecting member 140 away from the piston 130; the output end 1511 of the driving member 151 is penetrated through the seat body 152 and fixedly connected to the seat body 152.

[0046] The output end 1511 of the driving member 151 can drive the seat body 152 to rotate, so that the seat body 152 drives the cam 153 to rotate in the connecting rod 154, and then the cam 153 drives the connecting rod 154 to reciprocate. When the connecting rod 154 reciprocates, it can drive the piston 130 to reciprocate in the active chamber through the connecting member 140.

[0047] The connecting rod 154 is provided with a slide groove 1541, and the cam 153 is provided with a protrusion 1531 at one end away from the seat body 152, and the protrusion 1531 is slidably matched with the inner wall of the slide groove 1541. The opening direction of the slide groove 1541 is the same as the moving direction of the piston 130 in the active chamber.

[0048] When the connecting rod 154 makes reciprocating motion, the protrusion 1531 cooperates with the inner wall of the slide groove 1541 to limit the moving direction of the connecting rod 154. Since the opening direction of the slide groove 1541 is the same as the moving direction of the piston 130 in the active cavity, the collision between the piston 130 and the inner wall of the active cavity can be effectively reduced, thereby reducing abnormal noise.

[0049] Compared with the gear transmission method used in the prior art, the water pump structure 100 of this embodiment drives the piston 130 to perform reciprocating motion, which can effectively reduce the noise generated during operation.

[0050] The noise generated when the gear transmission is working mainly comes from the sound produced when the gears are meshing.

[0051] In some embodiments, the seat body 152 and the cam 153 are fixedly connected by integral molding.

[0052] In some embodiments, see Figures 1 to 3 The driving component 150 also includes a fixing member 155; a fixing hole 1521 and a connecting hole are respectively opened on the base body 152, and the fixing hole 1521 is communicated with the connecting hole; the output end 1511 is arranged in the connecting hole; the fixing member 155 is fixed in the fixing hole 1521, and one end of the fixing member 155 is abutted against the output end 1511 of the driving member 151.

[0053] The seat body 152 can be fixedly connected to the output end 1511 of the driving member 151 through the fixing member 155, so that the output end 1511 of the driving member 151 can drive the seat body 152 to rotate, thereby driving the cam 153 to rotate in the connecting rod 154.

[0054] In some embodiments, an extending direction of the fixing hole 1521 is perpendicular to an extending direction of the connecting hole.

[0055] In some embodiments, see Figure 1 The output end 1511 is provided with a supporting surface 1511 a , and one end of the fixing member 155 is supported on the supporting surface 1511 a , so that the fixing member 155 is connected to the output end 1511 .

[0056] Furthermore, the abutting surface 1511 a is a plane matching an end surface of the output end 1511 .

[0057] Exemplarily, the driving member 151 is a motor, and the output end 1511 is a transmission shaft of the motor.

[0058] In some embodiments, the driving assembly 150 further includes a blocking member (not shown), which blocks and is fixed to the opening of the fixing hole 1521 , and one end of the fixing member 155 away from the output end 1511 is abutted against the blocking member.

[0059] The fixing member 155 is fixed in the fixing hole 1521 , and one end of the fixing member 155 abuts against the blocking member, and the other end abuts against the output end 1511 , so that the output end 1511 can drive the seat body 152 to rotate.

[0060] In another embodiment, the outer surface of the fixing member 155 is provided with an external thread, and the inner wall of the fixing hole 1521 is provided with an internal thread corresponding to the external thread; the fixing member 155 cooperates with the inner wall thread of the fixing hole 1521 so that the fixing member 155 is fixed in the fixing hole 1521.

[0061] In some embodiments, see Figures 1 to 3 The protrusion 1531 is fixed to the end of the cam 153 away from the seat body 152 by means of integral molding.

[0062] In some embodiments, the protrusion 1531 is cylindrical in shape, and the slide groove 1541 is a waist-shaped groove, so that the protrusion 1531 can slide and fit with the inner wall of the slide groove 1541.

[0063] In some embodiments, the axis of the output end 1511 is colinear with the axis of the protrusion 1531 .

[0064] In some embodiments, see Figure 3 and Figure 4 A second cavity 1543 is formed on the connecting rod 154 . The second cavity 1543 is communicated with the sliding groove 1541 . The cam 153 is rotatably disposed in the second cavity 1543 .

[0065] When the cam 153 rotates in the second cavity 1543 , it can cooperate with the inner wall of the second cavity 1543 to drive the connecting rod 154 to perform reciprocating motion.

[0066] The output end 1511 of the driving member 151 has a first working state of rotating along a first direction, and a second working state of rotating along a second direction, wherein the first direction is opposite to the second direction.

[0067] Exemplarily, the first direction is clockwise, and the second direction is counterclockwise. The driving member 151 can rotate alternately along the first direction and the second direction to make the connecting rod 154 reciprocate, thereby making the piston 130 reciprocate in the active chamber.

[0068] In some embodiments, see Figure 3 At least one functional groove 1532 is provided on the outer surface of the cam 153 along the circumferential direction, and the functional groove 1532 is used to store lubricating oil.

[0069] In some embodiments, see Figure 1 and Figure 5 The connecting member 140 includes a body 141, a first connecting end 142, and a second connecting end 143. The first connecting end 142 is connected to one end of the body 141, and the second connecting end 143 is connected to one end of the body 141 away from the first connecting end 142. The first connecting end 142 is connected to the piston 130, and the second connecting end 143 is connected to the connecting rod 154.

[0070] In some embodiments, see Figure 4 and Figure 5 The connecting rod 154 is also provided with a first cavity 1542 , and the second connecting end 143 is snapped into the first cavity 1542 , thereby connecting the connecting member 140 to the connecting rod 154 .

[0071] Exemplarily, the second connection end 143 is substantially spherical in shape, and the first cavity 1542 is a spherical cavity matching the shape of the second connection end 143 .

[0072] In some embodiments, see Figure 6 The connecting rod 154 and the second connecting end 143 are fixedly connected by integral molding to improve transmission efficiency.

[0073] See also Figure 1 and Figure 5 A connecting cavity is provided on the piston 130, and one end of the connecting cavity has an opening. The first connecting end 142 enters the connecting cavity through the opening and is arranged in the connecting cavity, so that the connecting member 140 can drive the piston 130 to move.

[0074] In some embodiments, the first connection end 142 includes a first connection portion 1421 and a second connection portion 1422 connected to each other, and an end of the first connection portion 1421 away from the second connection portion 1422 is connected to the body 141 .

[0075] In some embodiments, the outer diameter of at least a portion of the second connecting portion 1422 is smaller than the inner diameter of the opening, so that the first connecting end 142 can enter the connecting cavity through the opening.

[0076] Furthermore, an outer diameter of the second connection portion 1422 gradually increases from one end of the second connection portion 1422 away from the first connection portion 1421 to the other end.

[0077] Furthermore, the outer diameter of the first connecting portion 1421 is larger than the inner diameter of the opening, so that after the first connecting end 142 is arranged in the connecting cavity, the first connecting portion 1421 is not easy to accidentally slip out through the opening, and the first connecting portion 1421 is interference fit with the inner wall of the connecting cavity, so that the first connecting end 142 can drive the piston 130 to move.

[0078] In some embodiments, the first connection end 142 further includes a third connection portion 1423 , and the body 141 is connected to the first connection portion 1421 via the third connection portion 1423 .

[0079] In some embodiments, the water pump structure 100 further includes a seal 144. A seal groove is provided on the body 141, and the seal 144 is disposed in the seal groove. The seal 144 slidably cooperates with the inner wall of the active cavity and can prevent the liquid in the active cavity from leaking.

[0080] In some embodiments, one end of the sleeve 120 is fixed in the pump body 110 , and the other end is exposed outside the pump body 110 , so as to facilitate smooth maintenance of the sleeve 120 .

[0081] Furthermore, a fixing groove 121 is opened on the outer surface of one end of the sleeve 120, and a fixing block matching the fixing groove 121 is provided in the pump body 110. The fixing block is clamped in the fixing groove 121 to fix one end of the sleeve 120 in the pump body 110.

[0082] In some embodiments, see Figure 1 , a protrusion 131 is provided on the piston 130 , and the protrusion 131 protrudes from the outer surface of the piston 130 .

[0083] In a natural state, the outer diameter of the protrusion 131 is larger than the inner diameter of the active cavity, and the protrusion 131 is slidably matched with the inner wall of the active cavity.

[0084] Exemplarily, the piston 130 is a rubber stopper.

[0085] Embodiment 2

[0086] The present application also provides a water flosser, comprising the water pump structure 100 of any of the above-mentioned embodiments.

[0087] The oral irrigator provided in this embodiment has the water pump structure 100 provided in any of the above embodiments, and therefore has all the beneficial effects of the water pump structure 100 provided in any of the above embodiments, which will not be elaborated here.

[0088] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 schematic representations 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 one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0089] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A water pump structure, characterized in that: include: Pump body; A sleeve, at least a portion of which is disposed within the pump body, and the sleeve has an active cavity therein; A piston assembly, the piston assembly comprising a piston and a connecting piece; one end of the connecting piece is connected to the piston, the piston is arranged in the active cavity and slidably cooperates with the inner wall of the active cavity; A driving assembly, the driving assembly comprises a seat body, a cam, a connecting rod and a driving member; one end of the cam is fixed on the seat body, and the cam is rotatably arranged in the connecting rod; a sliding groove is provided on the connecting rod, and a protrusion is provided on the end of the cam away from the seat body, and the protrusion is slidably matched with the inner wall of the sliding groove; the connecting rod is connected to the end of the connecting member away from the piston; the output end of the driving member is passed through the seat body and fixedly connected to the seat body; The opening direction of the slide groove is the same as the moving direction of the piston in the active chamber; Wherein, when the output end drives the seat body to rotate, the cam rotating in the connecting rod can drive the connecting rod to make reciprocating motion; The driving assembly also includes a fixing member; a fixing hole and a connecting hole are respectively opened on the base body, and the fixing hole and the connecting hole are communicated; the output end is arranged in the connecting hole; the fixing member is fixed in the fixing hole, and one end of the fixing member is supported on the output end.

2. The water pump structure according to claim 1, characterized in that: The output end is provided with a supporting surface, and one end of the fixing member is supported on the supporting surface.

3. The water pump structure according to claim 1, characterized in that: The driving assembly further comprises a blocking member, which blocks the opening of the fixing hole, and an end of the fixing member away from the output end abuts against the blocking member.

4. The water pump structure according to claim 1, characterized in that: The outer surface of the fixing piece is provided with an external thread, and the inner wall of the fixing hole is provided with an internal thread corresponding to the external thread; the fixing piece is threadedly matched with the inner wall of the fixing hole.

5. The water pump structure according to any one of claims 1 to 4, characterized in that: The connecting member has a first connecting end and a second connecting end opposite to each other, the first connecting end is connected to the piston, and the second connecting end is connected to the connecting rod.

6. The water pump structure according to claim 5, characterized in that: The second connecting end is integrally formed with the connecting rod.

7. The water pump structure according to claim 5, characterized in that: The connecting rod is provided with a first cavity, and the second connecting end is clamped in the first cavity.

8. The water pump structure according to any one of claims 1 to 4, characterized in that: The axis of the output end is colinearly arranged with the axis of the protrusion.

9. A water flosser, characterized in that: The water pump structure comprises the water pump structure described in any one of claims 1 to 8.

Images