Bar-shaped pulse type elastic pump and oral irrigator

Abstract

The utility model discloses a strip-shaped pulse type elastic pump and an oral irrigator, and belongs to the field of oral irrigators, and the elastic pump comprises an elastic pump body, a liquid inlet flow channel, a liquid outlet flow channel and a driving device. Wherein the bottom of the elastic pump body is provided with a deformation resetting area for elastic resetting, and acting force is applied to the deformation resetting area to compress / reset a pump cavity of the elastic pump body to generate volume change; the liquid inlet runner is communicated with the pump cavity through a liquid inlet one-way valve; the liquid outlet flow channel is communicated with the pump cavity through a liquid outlet one-way valve; the driving device is located below the deformation reset area, the driving device and the elastic pump body are arranged in a strip shape, and the driving device periodically applies acting force to the deformation reset area. According to the embodiment, the elastic pump body and the driving device are arranged in a strip shape and are arranged on the same axis, so that the whole structure is designed to be extremely narrow, and an extremely good holding hand feeling can be achieved no matter what cleaning equipment is applied to.

Description

Technical Field

[0001] The utility model relates to the field of oral irrigators, in particular to a pulse elastic pump and an oral irrigator arranged in a strip shape. Background Art

[0002] With the improvement of living standards, people's awareness of oral care has gradually increased, and the oral cleaning tools on the market have become more and more diverse. Among them, the water flosser has become one of the essential small appliances in the home as a substitute for traditional dental floss. Its basic working principle is to use the pump to draw water from the water tank and spray high-pressure pulse water through the nozzle hundreds or even thousands of times per minute to clean food residues and dental plaque in the gaps between teeth and massage gums, etc., to improve the oral environment.

[0003] The existing oral irrigator liquid outlet system usually adopts a plunger pump, and the reciprocating motion of the piston of the plunger pump requires a crank-connecting rod mechanism to achieve. However, due to the structural limitation of the crank-connecting rod mechanism, the height dimension of the oral irrigator liquid outlet system is relatively large, which makes the existing oral irrigator relatively large in height and is not conducive to users to carry it with them.

[0004] The existing Chinese patent CN116898611A discloses a water discharge system for a water flosser, which periodically squeezes the elastic pressure zone of the sub-pump wall to change the volume, thereby pumping water by sucking in fluid with negative pressure and squeezing out fluid with overpressure. However, when arranging the liquid pump cavity and the drive device, the two are arranged side by side, making the overall structure wide, which is not conducive to the overall layout; and the cavity inside the liquid pump cavity is large, which is not conducive to self-priming. Utility Model Content

[0005] One purpose of the utility model is to provide a water pumping structure with extremely narrow layout design and high water pumping efficiency;

[0006] The second object of the utility model is to provide a water flosser with an extremely narrow grip and high water pumping efficiency;

[0007] In order to solve one of the purposes, the utility model provides a pulse elastic pump arranged in a strip shape, which is characterized by comprising:

[0008] An elastic pump body, wherein the bottom of the elastic pump body has an elastically resetting deformation reset area, and a force is applied to the deformation reset area to compress / reset the pump cavity of the elastic pump body to generate a volume change;

[0009] A liquid inlet flow channel, the liquid inlet flow channel is connected to the pump chamber through a liquid inlet one-way valve;

[0010] A liquid outlet flow channel, the liquid outlet flow channel is connected to the pump chamber through a liquid outlet one-way valve;

[0011] A driving device is located below the deformation restoring area and is arranged in a strip shape with the elastic pump body. The driving device periodically applies a force to the deformation restoring area.

[0012] Preferably, the driving device includes a driving motor, a transmission assembly and an eccentric wheel assembly; the driving motor drives the eccentric wheel assembly to rotate eccentrically through the transmission assembly, and the eccentric wheel assembly periodically squeezes the deformation reset area.

[0013] Preferably, the transmission assembly includes a gear plate, a mounting shaft and a bevel gear, the bevel gear is mounted on the driving shaft of the driving motor, the gear plate is mounted through the mounting shaft, the eccentric wheel assembly is eccentrically mounted to the mounting shaft, and the bevel gear is meshed with the gear plate.

[0014] Preferably, the eccentric wheel assembly comprises:

[0015] An eccentric wheel body, wherein the axis of the eccentric wheel body is eccentrically mounted to the axis of the gear plate;

[0016] A drag-reducing bearing, the inner ring of which is sleeved on the eccentric wheel body;

[0017] A protective collar is sleeved on the outer ring of the drag reducing bearing and periodically squeezes the deformation restoring area as the eccentric wheel body rotates eccentrically.

[0018] Preferably, the driving motor, the transmission assembly, the eccentric wheel assembly and the elastic pump body are arranged in a strip shape.

[0019] Preferably, the elastic pump body includes a pump core and a pump sleeve, the pump sleeve is sleeved on the pump core, and a pump chamber of the elastic pump body is formed between the pump sleeve and the pump core; the liquid inlet of the liquid inlet channel and the liquid outlet of the liquid outlet channel are arranged on the pump core and connected to the pump chamber; at least a portion of the pump sleeve is implemented as the deformation reset zone.

[0020] Preferably, it further comprises a rigid support sleeve, the bottom of the rigid support sleeve has an opening, the interior of the rigid support sleeve has a constant cavity, the pump core and the pump sleeve are located in the constant cavity, and the deformation restoring area is located at the opening.

[0021] Preferably, at least the pump sleeve is implemented as an elastomer.

[0022] Preferably, the bottom of the pump core is concave, and the pump cavity is formed between the concave bottom and the pump sleeve; the shape of the concave bottom fits the extrusion portion of the eccentric wheel assembly that extrudes the elastic pump body.

[0023] The above technical solutions alone or in combination show the following beneficial effects:

[0024] The elastic pump body and the drive device are arranged in a strip shape, and the two are arranged on an axis, so that the overall structure can be designed to be extremely narrow, and no matter what kind of cleaning equipment it is used in, it can have an excellent grip.

[0025] Compared with a pump body with a hose structure, the present application provides a constant cavity through a rigid support sleeve, so that the elastic pump body only deforms in the deformation reset area. Therefore, the extrusion deformation of the driving device is converted into the volume change of the pump chamber to the greatest extent, realizing a smaller deformation change to form a larger volume change, thereby greatly improving the efficiency of pumping water.

[0026] A pump cavity is formed by a pump core and a pump sleeve made of an elastic body, so that the pump cavity has a large change in pressure as it is squeezed, and the water pumping effect is good.

[0027] The structure of the pump core fits the outer periphery of the eccentric wheel, so that the eccentric wheel can compress the volume of the pump chamber to the maximum extent, increase the impact force, and thus improve the water pumping efficiency.

[0028] The eccentric wheel assembly includes a drag-reducing bearing and a protective ring, which converts the sliding friction of the eccentric wheel assembly on the deformation reset zone into rolling friction. On the one hand, it can reduce power consumption, on the other hand, it can also reduce wear and increase service life, and on the other hand, it also reduces noise.

[0029] In order to solve the second purpose, the utility model provides a water flosser, which is characterized by comprising a water flosser body and the above-mentioned strip-arranged pulse elastic pump; the driving device is controlled to drive the power component of the water flosser body, the liquid inlet channel is connected to the water supply component of the water flosser body, and the liquid outlet channel is connected to the nozzle component of the water flosser body.

[0030] Preferably, the water supply assembly is located on one side of the nozzle assembly.

[0031] The beneficial effects of adopting the above technical solution are:

[0032] The elastic pump body and the drive device are arranged in a strip shape, and the two are arranged on an axis, which makes the water flosser extremely narrow in design. Compared with the existing design, it eliminates the bloated feeling of holding and the design elements are more aesthetically pleasing.

[0033] Compared with a pump body with a hose structure, this water flosser provides a constant cavity through a rigid support sleeve, so that the elastic pump body only deforms in the deformation reset area. Therefore, the extrusion deformation of the driving device is converted into the volume change of the pump chamber to the greatest extent, realizing a larger volume change with a smaller deformation change, thereby greatly improving the efficiency of pumping water.

[0034] A pump cavity is formed by a pump core and a pump sleeve made of an elastic body, so that the pump cavity has a large change in pressure as it is squeezed, and the water pumping effect is good.

[0035] The structure of the pump core fits the outer periphery of the eccentric wheel, so that the eccentric wheel can compress the volume of the pump chamber to the maximum extent, increase the impact force, and thus improve the water pumping efficiency.

[0036] The eccentric wheel assembly includes a drag-reducing bearing and a protective ring, which converts the sliding friction of the eccentric wheel assembly on the deformation reset zone into rolling friction. On the one hand, it can reduce power consumption, on the other hand, it can also reduce wear and increase service life, and on the other hand, it also reduces noise.

[0037] The nozzle assembly and the water supply assembly are arranged side by side on the top of the water flosser body, which conforms to the overall strip layout design. The extremely narrow design can make the internal layout of the water flosser more compact, and the overall structure is on one axis; thus, it can suit people with different hand grip sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 The schematic diagram of the structure of the water flosser in the utility model is expressed.

[0039] Figure 2 The exploded diagram of the structure of the water flosser in the utility model is expressed.

[0040] Figure 3 A top view of the water flosser in the utility model is expressed.

[0041] Figure 4 Expressed Figure 3 Sectional view at AA.

[0042] Figure 5 Expressed Figure 4 Stereoscopic perspective diagram.

[0043] Figure 6 A schematic diagram of the formation of the pump chamber in the utility model is expressed.

[0044] in:

[0045]

[0046] DETAILED DESCRIPTION

[0047] The preferred embodiments described below are for example only, and those skilled in the art may think of other obvious variations. The basic principles of the present invention defined in the following description may be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0048] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention 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. Therefore, the above terms should not be understood as limiting the present invention.

[0049] Embodiment 1:

[0050] See also Figure 1 to Figure 6 , this embodiment provides a pulse elastic pump arranged in a strip shape, including an elastic pump body 1, a liquid inlet channel 61, a liquid outlet channel 51 and a driving device. Among them, the elastic pump body 1 has an elastically reset deformation reset area 120 at the bottom, and the deformation reset area 120 is applied with a force to compress / reset the pump chamber 110 of the elastic pump body 1 to produce a volume change; the liquid inlet channel 61 is connected to the pump chamber 110 through the liquid inlet check valve 62; the liquid outlet channel 51 is connected to the pump chamber 110 through the liquid outlet check valve 52; the driving device is located below the deformation reset area 120, and is arranged in a strip shape with the elastic pump body 1, and the driving device periodically applies a force to the deformation reset area 120. In this embodiment, the elastic pump body 1 and the driving device are arranged in a strip shape, and the two are arranged on an axis, so that the overall structure can achieve an extremely narrow design, and no matter what kind of cleaning equipment it is used in, it can have an excellent grip feel.

[0051] The above is necessary to achieve the technical purpose of this embodiment, and is further described in detail below with reference to the accompanying drawings:

[0052] See also Figure 2 , Figure 4 and Figure 5 The driving device provides a periodic squeezing force for the deformation reset area 120, so that the elastic pump generates a pulsed water flow. Specifically, the driving device includes a driving motor 31, a transmission assembly 32 and an eccentric wheel assembly 33. The driving motor 31 drives the eccentric wheel assembly 33 to rotate eccentrically through the transmission assembly 32, and the eccentric wheel assembly 33 periodically squeezes the deformation reset area 120.

[0053] Further, as a preferred implementation of the present embodiment, the transmission assembly 32 adopts the transmission principle of the bevel gear 321. Specifically, the transmission assembly 32 includes a gear plate 322, a mounting shaft 323 and a bevel gear 321, the bevel gear 321 is mounted on the driving shaft 311 of the driving motor 31, the gear plate 322 is mounted through the mounting shaft 323, the eccentric wheel assembly 33 is eccentrically mounted with the mounting shaft, and the bevel gear 321 is meshed with the gear plate 322. When the driving shaft 311 of the driving motor 31 rotates, the bevel gear 321 drives the gear plate 322 to rotate with the mounting shaft 323 as the axis, and the eccentric installation of the eccentric wheel assembly 33 causes it to perform a cam motion, thereby applying a periodic extrusion force to the deformation reset area 120.

[0054] Furthermore, the eccentric assembly 33 includes an eccentric body 331, a drag reduction bearing 332 and a protective collar 333. The axis of the eccentric body 331 is eccentrically mounted with the axis of the gear plate 322; the inner ring of the drag reduction bearing 332 is sleeved on the eccentric body 331; the protective collar 333 is sleeved on the outer ring of the drag reduction bearing 332, and periodically squeezes the deformation reset area 120 as the eccentric body 331 rotates eccentrically.

[0055] When the eccentric wheel body 331 drives the drag reduction bearing 332 and the protective sleeve 333 to perform cam motion, the deformation reset zone 120 is periodically squeezed. When the deformation reset zone 120 is squeezed, the volume of the pump chamber 110 of the elastic pump body 1 becomes smaller, and the fluid in the pump chamber 110 passes through the liquid outlet flow channel 51 in a jet manner through the liquid outlet check valve 52. At this time, the liquid inlet check valve 62 is closed due to the internal and external pressure difference (the inside is larger than the outside); when the cam motion of the eccentric wheel leaves the deformation reset zone 120, the deformation reset zone 120 is elastically reset, the elastic pump body 1 is relatively enlarged and restored, and the negative pressure state in the pump chamber 110 (the inside is smaller than the outside) opens the liquid inlet check valve 62 and closes the liquid outlet check valve 52, and water enters the pump chamber 110. Through high-frequency cyclic reciprocating action, the effect of pulse jet is achieved. Further, the liquid outlet check valve 52 and the liquid inlet check valve 62 can adopt a one-way ball valve or a one-way valve plate, which is not limited here.

[0056] Please combine Figure 2 and Figure 6 In order to further improve the water pumping efficiency, the elastic pump body 1 of this embodiment includes a pump core 11 and a pump sleeve 12. The pump sleeve 12 is sleeved on the pump core 11, and a pump chamber 110 of the elastic pump body 1 is formed between the pump sleeve 12 and the pump core 11. The liquid inlet of the liquid inlet flow channel 61 and the liquid outlet of the liquid outlet flow channel 51 are arranged on the pump core 11 and connected to the pump chamber 110. At least part of the pump sleeve 12 is implemented as a deformation restoration area 120.

[0057] In the material selection, the pump core 11 can be a plastic part (no deformation occurs), but at least the deformation recovery area 120 of the pump sleeve 12 or the whole is an elastomer. Here, the elastomer is interpreted as a highly elastic material that can restore its original shape after the external force is removed. In the prior art, it is implemented as a polymer material, such as nitrile rubber, etc. Since this embodiment does not involve material improvement, the material selection is all in the prior art, so no unnecessary details are given.

[0058] Compared with the hose structure used as the pump body in the prior art, its disadvantages are obvious. Its deformation is non-specific. When one area is pressurized, the entire area may undergo a certain expansion deformation, resulting in an insignificant change in volume. As a preferred implementation of this embodiment, please refer to Figure 2 The present structure also includes a rigid support sleeve 2, the bottom of which has an opening 21, and an internal constant cavity 20, the pump core 11 and the pump sleeve 12 are located in the constant cavity 20, and the deformation reset area 120 is located at the opening 21. Compared with the pump body of the hose structure, the present water flosser provides a constant cavity 20 through the rigid support sleeve 2, so that the elastic pump body 1 is deformed only in the deformation reset area 120, so that the extrusion deformation of the driving device is converted into the volume change of the pump chamber 110 to the greatest extent, realizing a smaller deformation change to form a larger volume change, which greatly improves the efficiency of pumping water.

[0059] For further information, see Figure 6 The bottom of the pump core 11 is implemented as a concave shape, and a pump chamber 110 is formed between the concave bottom 111 and the pump sleeve 12; the shape of the concave bottom 111 fits the extrusion part of the eccentric wheel assembly 33 that squeezes the elastic pump body 1. Further, the concave shape fits the outer peripheral shape of the extrusion deformation reset area 120 of the protective collar 333. When the protective collar 333 squeezes the pump sleeve 12, the volume of the pump chamber 110 can be compressed to the maximum extent, resulting in a pressure difference between the inside and outside, and increasing the impact force of the jet.

[0060] In view of the above, the present embodiment aims to form a design concept of a strip layout. Therefore, the drive motor 31, the transmission assembly 32 and the eccentric wheel assembly 33 are arranged in a strip with the elastic pump body 1, so as to narrow the structure and eliminate the bloated feeling of the structure.

[0061] The above technical solutions alone or in combination show the following beneficial effects:

[0062] The elastic pump body 1 and the driving device are arranged in a strip shape, and the two are arranged on an axis, so that the overall structure is extremely narrow in design, and no matter what kind of cleaning equipment it is used in, it can have an excellent grip.

[0063] Compared with a pump body with a hose structure, in the present application, a constant cavity 20 is provided through a rigid support sleeve 2, so that the elastic pump body 1 is deformed only in the deformation reset area 120. Therefore, the extrusion deformation of the driving device is converted into the volume change of the pump chamber 110 to the greatest extent, and a smaller deformation change is formed into a larger volume change, which greatly improves the efficiency of pumping water.

[0064] A pump chamber 110 is formed by a pump core 11 and a pump sleeve 12 made of an elastic body, so that the pressure of the pump chamber 110 changes greatly with squeezing, and the water pumping effect is good.

[0065] The structure of the pump core 11 fits the outer periphery of the eccentric wheel, so that the eccentric wheel can compress the volume of the pump chamber 110 to the maximum extent, increase the impact force, and thus improve the water pumping efficiency.

[0066] The eccentric wheel assembly 33 includes a drag-reducing bearing 332 and a protective ring 333, which converts the sliding friction of the eccentric wheel assembly 33 on the deformation reset area 120 into rolling friction, which can reduce power consumption on the one hand, reduce wear and tear on the other hand, increase service life, and reduce noise on the other hand.

[0067] Embodiment 2:

[0068] See also Figure 1 , Figure 2 This embodiment provides a water flosser, comprising a water flosser body 4 and a pulse elastic pump arranged in a strip shape. The driving device is controlled to drive the power component of the water flosser body 4, the liquid inlet channel 61 is connected to the water supply component 6 of the water flosser body 4, and the liquid outlet channel 51 is connected to the nozzle component 5 of the water flosser body 4.

[0069] Further, please combine Figure 1 and Figure 2 The pulse elastic pump is installed on the movement bracket in the water flosser body 4, and the movement bracket includes a left movement bracket 41 and a right movement bracket 42, which are connected by bayonet assembly or ultrasonic connection, and then overmolded by a protective shell 43. It should be noted that the water flosser body 4 also includes components such as batteries, display lights, and motherboards. This embodiment does not elaborate on the principle structure of the water flosser, and ordinary technicians in this field should be able to know it.

[0070] The present invention does not elaborate on some conventional technologies and adaptive structural changes in the implementation of this embodiment. For example, the structure of the left movement bracket 41 and the right movement bracket 42 should be compatible with the installation of the elastic pump, whether the two are fixed by screws or bonded, the location of the battery, the wiring of the main board, etc. This can be done from time to time as a conventional means in the field, and this embodiment does not further limit or explain this.

[0071] The pulse elastic pump arranged in a strip shape comprises an elastic pump body 1, a liquid inlet channel 61, a liquid outlet channel 51 and a driving device. The elastic pump body 1 has a deformation reset area 120 for elastic reset at the bottom, and the deformation reset area 120 is applied with a force to compress / reset the pump cavity 110 of the elastic pump body 1 to produce a volume change; the liquid inlet channel 61 is connected to the pump cavity 110 through a liquid inlet check valve 62; the liquid outlet channel 51 is connected to the pump cavity 110 through a liquid outlet check valve 52; the driving device is located below the deformation reset area 120 and is arranged in a strip shape with the elastic pump body 1, and the driving device periodically applies a force to the deformation reset area 120.

[0072] See also Figure 2 , Figure 4 and Figure 5 The driving device provides a periodic squeezing force for the deformation reset area 120, so that the elastic pump generates a pulsed water flow. Specifically, the driving device includes a driving motor 31, a transmission assembly 32 and an eccentric wheel assembly 33. The driving motor 31 drives the eccentric wheel assembly 33 to rotate eccentrically through the transmission assembly 32, and the eccentric wheel assembly 33 periodically squeezes the deformation reset area 120.

[0073] Further, as a preferred implementation of the present embodiment, the transmission assembly 32 adopts the transmission principle of the bevel gear 321. Specifically, the transmission assembly 32 includes a gear plate 322, a mounting shaft 323 and a bevel gear 321. The bevel gear 321 is mounted on the driving shaft 311 of the driving motor 31. The gear plate 322 is mounted through the mounting shaft 323. The eccentric wheel assembly 33 is eccentrically mounted with the mounting shaft, and the bevel gear 321 is meshed with the gear plate 322. When the driving shaft 311 of the driving motor 31 rotates, the bevel gear 321 drives the gear plate 322 to rotate with the mounting shaft as the axis, and the eccentric installation of the eccentric wheel assembly 33 causes it to perform a cam motion, thereby applying a periodic extrusion force to the deformation reset area 120.

[0074] Furthermore, the eccentric assembly 33 includes an eccentric body 331, a drag reduction bearing 332 and a protective collar 333. The axis of the eccentric body 331 is eccentrically mounted with the axis of the gear plate 322; the inner ring of the drag reduction bearing 332 is sleeved on the eccentric body 331; the protective collar 333 is sleeved on the outer ring of the drag reduction bearing 332, and periodically squeezes the deformation reset area 120 as the eccentric body 331 rotates eccentrically.

[0075] When the eccentric wheel body 331 drives the drag reduction bearing 332 and the protective sleeve 333 to perform cam motion, the deformation reset zone 120 is periodically squeezed. When the deformation reset zone 120 is squeezed, the volume of the pump chamber 110 of the elastic pump body 1 becomes smaller, and the fluid in the pump chamber 110 passes through the liquid outlet flow channel 51 in a jet manner through the liquid outlet check valve 52. At this time, the liquid inlet check valve 62 is closed due to the internal and external pressure difference (the inside is larger than the outside); when the cam motion of the eccentric wheel leaves the deformation reset zone 120, the deformation reset zone 120 is elastically reset, the elastic pump body 1 is relatively enlarged and restored, and the negative pressure state in the pump chamber 110 (the inside is smaller than the outside) opens the liquid inlet check valve 62 and closes the liquid outlet check valve 52, and water enters the pump chamber 110. Through high-frequency cyclic reciprocating action, the effect of pulse jet is achieved. Further, the liquid outlet check valve 52 and the liquid inlet check valve 62 can adopt a one-way ball valve or a one-way valve plate, which is not limited here.

[0076] Please combine Figure 2 and Figure 6 In order to further improve the water pumping efficiency, the elastic pump body 1 of this embodiment includes a pump core 11 and a pump sleeve 12. The pump sleeve 12 is sleeved on the pump core 11, and a pump chamber 110 of the elastic pump body 1 is formed between the pump sleeve 12 and the pump core 11. The liquid inlet of the liquid inlet flow channel 61 and the liquid outlet of the liquid outlet flow channel 51 are arranged on the pump core 11 and connected to the pump chamber 110. At least part of the pump sleeve 12 is implemented as a deformation restoration area 120.

[0077] In the material selection, the pump core 11 can be a plastic part (no deformation occurs), but at least the deformation recovery area 120 of the pump sleeve 12 or the whole is an elastomer. Here, the elastomer is interpreted as a highly elastic material that can restore its original shape after the external force is removed. In the prior art, it is implemented as a polymer material, such as nitrile rubber, etc. Since this embodiment does not involve material improvement, the material selection is all in the prior art, so no unnecessary details are given.

[0078] Compared with the hose structure used as the pump body in the prior art, its disadvantages are obvious. Its deformation is non-specific. When one area is pressurized, the entire area may undergo a certain expansion deformation, resulting in an insignificant change in volume. As a preferred implementation of this embodiment, please refer to Figure 2 The present structure also includes a rigid support sleeve 2, the bottom of which has an opening 21, and an internal constant cavity 20, the pump core 11 and the pump sleeve 12 are located in the constant cavity 20, and the deformation reset area 120 is located at the opening 21. Compared with the pump body of the hose structure, the present water flosser provides a constant cavity 20 through the rigid support sleeve 2, so that the elastic pump body 1 is deformed only in the deformation reset area 120, so that the extrusion deformation of the driving device is converted into the volume change of the pump chamber 110 to the greatest extent, which greatly improves the efficiency of pumping water.

[0079] For further information, see Figure 6The bottom of the pump core 11 is implemented as a concave shape, and a pump chamber 110 is formed between the concave bottom 111 and the pump sleeve 12; the shape of the concave bottom 111 fits the extrusion part of the eccentric wheel assembly 33 that extrudes the elastic pump body 1. Further, the concave shape is adapted to the outer peripheral shape of the extrusion deformation reset area 120 of the protective collar 333. When the protective collar 333 squeezes the pump sleeve 12, the volume of the pump chamber 110 can be compressed to the maximum extent, resulting in a pressure difference between the inside and outside, thereby increasing the impact force of the jet.

[0080] In view of the above, the present embodiment aims to form a design concept of a strip layout. Therefore, the drive motor 31, the transmission assembly 32 and the eccentric wheel assembly 33 are arranged in a strip with the elastic pump body 1. This can narrow the structure and eliminate the bloated feeling of the structure. Furthermore, the water supply assembly 6 is located on one side of the nozzle assembly 5. In line with the overall strip layout design, the extremely narrow design can make the internal layout of the water flosser more compact, and the overall structure is on one axis; thus, it can meet the needs of people with different hand holding sizes.

[0081] The beneficial effects of adopting the above technical solution are:

[0082] The elastic pump body 1 and the driving device are arranged in a strip shape, and the two are arranged on an axis, so that the water flosser can be designed to be extremely narrow. Compared with the existing design, it eliminates the bloated feeling of holding and the design elements are more aesthetically pleasing.

[0083] Compared with a pump body with a hose structure, the present water flosser provides a constant cavity 20 through a rigid support sleeve 2, so that the elastic pump body 1 is deformed only in the deformation reset area 120. Therefore, the extrusion deformation of the driving device is converted into the volume change of the pump chamber 110 to the greatest extent, realizing a smaller deformation change to form a larger volume change, thereby greatly improving the efficiency of pumping water.

[0084] A pump chamber 110 is formed by a pump core 11 and a pump sleeve 12 made of an elastic body, so that the pressure of the pump chamber 110 changes greatly with squeezing, and the water pumping effect is good.

[0085] The structure of the pump core 11 fits the outer periphery of the eccentric wheel, so that the eccentric wheel can compress the volume of the pump chamber 110 to the maximum extent, increase the impact force, and thus improve the water pumping efficiency.

[0086] The eccentric wheel assembly 33 includes a drag-reducing bearing 332 and a protective ring 333, which converts the sliding friction of the eccentric wheel assembly 33 on the deformation reset area 120 into rolling friction, which can reduce power consumption on the one hand, reduce wear and tear on the other hand, increase service life, and reduce noise on the other hand.

[0087] The nozzle assembly 5 and the water supply assembly 6 are arranged side by side on the top of the water flosser body 4, which conforms to the overall strip layout design. The extremely narrow design can make the internal layout of the water flosser more compact, and the overall structure is on one axis; thus, it can meet the needs of people with different hand holding sizes.

[0088] It should be understood by those skilled in the art that the embodiments of the present invention described above are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments. Without departing from the principles, the embodiments of the present invention may be deformed or modified in any way.

Claims

1. A pulse elastic pump arranged in strips, characterized in that: include: An elastic pump body, wherein the bottom of the elastic pump body has an elastically resetting deformation reset area, and a force is applied to the deformation reset area to compress / reset the pump cavity of the elastic pump body to generate a volume change; A liquid inlet flow channel, the liquid inlet flow channel is connected to the pump chamber through a liquid inlet one-way valve; A liquid outlet flow channel, the liquid outlet flow channel is connected to the pump chamber through a liquid outlet one-way valve; A driving device is located below the deformation restoring area and is arranged in a strip shape with the elastic pump body. The driving device periodically applies a force to the deformation restoring area.

2. The pulse elastic pump arranged in strips according to claim 1, characterized in that: The driving device comprises a driving motor, a transmission assembly and an eccentric wheel assembly; the driving motor drives the eccentric wheel assembly to rotate eccentrically through the transmission assembly, and the eccentric wheel assembly periodically squeezes the deformation reset area.

3. The pulse elastic pump arranged in strips according to claim 2, characterized in that: The transmission assembly includes a gear plate, a mounting shaft and a bevel gear, the bevel gear is mounted on the driving shaft of the driving motor, the gear plate is mounted through the mounting shaft, the eccentric wheel assembly is eccentrically mounted on the gear plate, and the bevel gear is meshed with the gear plate.

4. The pulse elastic pump arranged in strips according to claim 3, characterized in that: The eccentric wheel assembly comprises: An eccentric wheel body, wherein the axis of the eccentric wheel body is eccentrically mounted to the axis of the gear plate; A drag-reducing bearing, the inner ring of which is sleeved on the eccentric wheel body; A protective collar is sleeved on the outer ring of the drag reducing bearing and periodically squeezes the deformation restoring area as the eccentric wheel body rotates eccentrically.

5. The pulse elastic pump arranged in strips according to claim 2, characterized in that: The driving motor, the transmission assembly, the eccentric wheel assembly and the elastic pump body are arranged in a strip shape.

6. The pulse elastic pump arranged in strips according to claim 2, characterized in that: The elastic pump body includes a pump core and a pump sleeve, the pump sleeve is sleeved on the pump core, and a pump chamber of the elastic pump body is formed between the pump sleeve and the pump core; the liquid inlet of the liquid inlet channel and the liquid outlet of the liquid outlet channel are arranged on the pump core and connected to the pump chamber; at least a portion of the pump sleeve is implemented as the deformation restoration area.

7. The strip-arranged pulse elastic pump according to claim 6, characterized in that: It also includes a rigid support sleeve, the bottom of which has an opening and an internally fixed cavity, the pump core and the pump sleeve are located in the internally fixed cavity, and the deformation restoring area is located at the opening.

8. The pulse elastic pump arranged in strips according to claim 6, characterized in that: At least the pump sleeve is embodied as an elastomer.

9. The pulse elastic pump arranged in strips according to claim 6, characterized in that: The bottom of the pump core is concave, and the pump cavity is formed between the concave bottom and the pump sleeve; the shape of the concave bottom fits the extrusion portion of the eccentric wheel assembly that extrudes the elastic pump body.

10. A water flosser, characterized in that: It comprises a water flosser body and a pulse elastic pump arranged in a strip shape as described in any one of claims 1 to 9; the driving device is controlled to drive the power component of the water flosser body, the liquid inlet channel is connected to the water supply component of the water flosser body, and the liquid outlet channel is connected to the nozzle component of the water flosser body.

11. The oral rinser according to claim 10, characterized in that: The water supply assembly is located at one side of the nozzle assembly.

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