Liquid pumping device and oral cavity cleaner

Abstract

The utility model discloses a liquid pumping device which is used for liquid spraying equipment, the liquid spraying equipment comprises a shell and a spraying pipe, and the liquid pumping device comprises a liquid pumping assembly, a fixing assembly, a top cover and a gland. The liquid pumping assembly is installed in the shell and pumps liquid in the first direction. In the first direction, the top cover, the shell and the liquid pumping assembly define a containing space; the gland is arranged in the containing space and connected to the side, in the first direction, of the liquid pumping assembly, and a limiting space is defined by the gland and the liquid pumping assembly. In the first direction, through holes are formed in the top cover and the gland, so that the spray pipe extends into the through holes to be connected with the liquid pumping assembly, and liquid pumped out by the liquid pumping assembly is sprayed out of the spray pipe; the fixing assembly is movably arranged in the limited space, and the fixing assembly is configured to fix the spray pipe at a first position of the through hole and release the spray pipe at a second position of the through hole. And the risk that the top cover buckling position is easy to break or the nozzle cannot be fixed and fails when the nozzle is under strong water pressure of pumped water is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of personal care, in particular to a liquid pump device and an oral cleaner. Background Art

[0002] Brushing your teeth is the most common form of dental care. However, most toothbrushes cannot penetrate toothpaste into the gaps, grooves, and cracks of the occlusal surface, so an oral irrigator is needed as an auxiliary tool to clean teeth. An oral irrigator generally consists of an irrigator body and a nozzle that is detachably connected to the body. The irrigator body includes a water pump that draws cleaning fluid and sprays it through the nozzle at a certain pressure, thereby cleaning areas that are difficult to reach with a toothbrush, such as the gaps between teeth and the gingival sulcus. Furthermore, the oral irrigator allows the cleaning fluid to enter the gaps of the occlusal surface to neutralize the acidic substances therein and restore the calcium content of the previously decalcified tooth enamel. When the cleaning fluid is sprayed through the nozzle at a certain pressure, the nozzle generates an upward force under the strong water pressure of the pumped water. The nozzle impacts the fixing component, suppressing the top cover buckle of the fixing component, which is prone to breakage or the nozzle cannot be fixed and fails. Utility Model Content

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a pumping device that avoids the risk of the nozzle being easily broken by the buckle of the top cover or the nozzle being unable to be fixed and failed under the strong water pressure of the pumped water. The present invention also provides an oral cleaner using the pumping device.

[0004] To achieve the above-mentioned object, the first aspect of the present invention provides a liquid pumping device for use in a liquid spraying device, wherein the liquid spraying device comprises a housing and a nozzle, and is characterized in that the liquid pumping device comprises: a liquid pumping assembly, a fixing assembly, a top cover, and a pressure cover;

[0005] The pump assembly is installed in the housing, and the pump assembly pumps liquid along a first direction;

[0006] Along the first direction, the top cover, the housing and the pump assembly form a receiving space;

[0007] The gland is disposed in the accommodating space, and the gland is connected to one side of the pump assembly along the first direction and encloses a defined space with the pump assembly;

[0008] Along the first direction, the top cover and the pressure cover are both provided with through holes for the nozzle to extend into and connect with the pump assembly, so as to spray the liquid pumped by the pump assembly out of the nozzle;

[0009] The fixing assembly is movably disposed in the confined space, and the fixing assembly is configured to fix the nozzle at a first position of the through hole and release the nozzle at a second position of the through hole.

[0010] Furthermore, the gland and the pump fluid assembly are fastened at multiple points.

[0011] Furthermore, the pressure cover abuts against the top cover.

[0012] Furthermore, the pump assembly includes a mounting seat and a pump component, the mounting seat is connected to the pump end of the pump component, the top cover, the housing and the mounting seat form the accommodating space, and / or the mounting seat is connected to the housing;

[0013] The pressure cover and the mounting seat form the defined space.

[0014] Furthermore, it further comprises a connecting piece, the connecting piece being configured to be engaged with the top cover of the liquid spraying device, and the connecting piece being arranged at an end of the gland away from the liquid pump assembly;

[0015] Alternatively, the connecting member is arranged at an end of the mounting seat away from the fluid pumping member, and the connecting member is located outside the limited space.

[0016] Furthermore, the fixing assembly is slidably disposed on the mounting seat along a second direction, and the second direction intersects with the first direction;

[0017] One end of the defined space along the second direction has an opening;

[0018] During the movement of the fixing assembly from the first position to the second position, at least a portion of the fixing assembly passes through the opening into or out of the confined space.

[0019] Furthermore, the fixing assembly includes:

[0020] A sliding member is provided with a through hole passing through the sliding member, and a snap portion and a sleeve portion are provided on opposite sides of the through hole, wherein the snap portion is used to release and engage the nozzle penetrating the through hole;

[0021] A reset member, wherein one end of the reset member is provided with the sleeve portion, and the other end abuts against the mounting seat to drive the sliding member to the first position when resetting, and drives the buckle portion to engage and fix the nozzle penetrating the through hole;

[0022] The driving part is used to drive the sliding member to the second position to release the nozzle at the second position of the through hole, and the driving part is arranged to extend out of the opening.

[0023] Furthermore, the shell is provided with an opening along the second direction, the driving portion slides out of the shell through the opening, the driving portion is connected to one end of the sliding member, and the driving portion drives the sliding member to slide along the second direction.

[0024] Furthermore, the driving part extends out of the top cover, and the driving part includes:

[0025] A button, wherein a driving surface for driving the sliding member to move is provided on one side of the button, and the button is slidably arranged in a button hole provided on the top cover;

[0026] An elastic member, one end of which is connected to the button, and the other end of which abuts against the mounting seat to drive the button to reset.

[0027] Furthermore, one of the gland and the mounting seat has a limiting member, the limiting member is inserted into the through hole, the reset member is a spring, one end of the reset member abuts against the limiting member, and the other end is connected to the sleeve portion;

[0028] And / or, at least one of the pressure cover and the mounting seat is provided with a slide rail; the sliding member is slidably arranged on the slide rail along the second direction.

[0029] Furthermore, the mounting seat is firmly connected to the pumping element;

[0030] And / or, the mounting base includes a mounting plate and a mounting protrusion, the mounting plate is connected to the gland, and the mounting protrusion is connected to an end of the mounting plate facing away from the gland and is provided with a charging socket;

[0031] And / or, the liquid pump component includes a first assembly portion, a liquid pump portion, and a second assembly portion, the first assembly portion and the second assembly portion are arranged on opposite sides of the liquid pump portion, the first assembly portion is configured to install the energy component, and the second assembly portion is configured to install the controller;

[0032] And / or, the mounting seat is provided with a countersunk hole for the nozzle to pass through, the large diameter end of the countersunk hole faces the pumping component and accommodates at least part of the pumping component; the pumping component has a pumping hole for the nozzle to pass through.

[0033] The second aspect of the present invention provides an oral cleaner, comprising a shell, a nozzle and the aforementioned pumping device, wherein the pumping device is arranged in the inner cavity of the shell, and the nozzle is passed through the shell and connected to the pumping assembly of the pumping device.

[0034] Furthermore, the housing includes a shell having an open end and a top cover covering the open end, and the pump assembly of the pump device and one of the pressure covers are snap-connected to the top cover.

[0035] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0036] In this utility model, the nozzle generates an upward force under the strong pressure of the pumped water, which impacts the fixing assembly. By providing a dual fixing structure of a top cover and a pressure cover in the direction of water pumping, the risk of the top cover buckle breaking or the nozzle becoming unfixed due to the strong water pressure of the pumped water is avoided. The fixing assembly also facilitates both the fixed installation and the release and removal of the nozzle.

[0037] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings are part of this utility model and are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts.

[0039] In the drawings of the specification:

[0040] Figure 1 This is a structural diagram of a liquid spraying device in this specific embodiment;

[0041] Figure 2 This is a schematic diagram of the exploded structure of a liquid spraying device in this specific embodiment;

[0042] Figure 3 This is a schematic diagram of the top cover structure of a liquid spraying device in this specific embodiment;

[0043] Figure 4 This is a schematic structural diagram of a pump assembly of a pump device in this specific embodiment;

[0044] Figure 5 This is a schematic diagram of the structure of a fixed component of a liquid pumping device in this specific embodiment;

[0045] Figure 6 This is a schematic diagram of a gland structure of a liquid pumping device in this specific embodiment;

[0046] Figure 7 This is a schematic diagram of the structure of a mounting base for a liquid pump device in this specific embodiment;

[0047] Figure 8 This is a schematic cross-sectional view of a fixed nozzle of a fixed assembly of a liquid pumping device according to this specific embodiment;

[0048] Figure 9 2 is a schematic cross-sectional view of a release nozzle of a fixed component of a liquid pumping device according to the present embodiment;

[0049] Figure 10 It is a structural schematic diagram of the second structure of a fixing component of a liquid pumping device in this specific embodiment.

[0050] Reference numerals:

[0051] 1000, pumping device;

[0052] 100, pump assembly; 110, mounting base; 111, mounting plate; 112, mounting boss; 113, countersunk hole; 114, third through hole; 115, fourth through hole; 120, pump component; 121, first assembly portion; 122, second assembly portion; 123, pump unit; 124, pump hole; 125, connecting hole;

[0053] 200, gland; 210, cover plate; 220, connection portion; 230, first through hole; 240, second through hole;

[0054] 300, fixing assembly; 310, sliding member; 3110, buckle; 320, through hole; 321, buckle portion; 322, sleeve portion; 323, first driving portion; 324, opening; 330, reset member; 340, button; 3400, driving surface; 350, elastic member;

[0055] 400, limited space;

[0056] 500, connector;

[0057] 600, limiter;

[0058] 700, slide rail;

[0059] 800, sealing ring;

[0060] 2000, nozzle; 2100, groove;

[0061] 3000, outer shell; 3100, housing; 3200, top cover; 3210, first buckle; 3220, second buckle; 3230, button hole;

[0062] 4000, charging socket;

[0063] 5000, energy parts;

[0064] 6000, controller.

[0065] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0066] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0067] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0068] In existing oral irrigators, cleaning fluid is ejected through a nozzle at a certain pressure to clean areas difficult to reach with a toothbrush, such as between teeth and the gingival sulcus. When the cleaning fluid is ejected through the nozzle at a certain pressure, the strong pressure of the pumped water generates an upward force, which impacts the fixing assembly 300 that secures the nozzle. The top cover buckle that holds the fixing assembly 300 in place can break under the impact, creating a risk of failure, resulting in the nozzle becoming unsecured.

[0069] In order to solve this technical problem, the existing conventional technology will redesign the top cover 3200 and optimize the thickness or snap-fit ​​connection method of the top cover 3200 in the hope of solving the above technical problems. When the cleaning liquid is sprayed out through the nozzle at a certain pressure, the existing technology directly uses the top cover 3200 to press the nozzle fixing assembly 300. Usually, it is necessary to appropriately increase the thickness of the top cover 3200 to increase the pressure to fix the nozzle fixing assembly 300. However, since the top cover 3200 is too thick, shrinkage will occur during injection molding. Therefore, the thickness of the top cover 3200 should not be set too thick. When the top cover 3200 is fixed, the outer periphery of the top cover 3200 is snap-fitted to the body shell, and the middle is not snap-fitted to the fixing frame of the movement.

[0070] However, in the prior art of changing the thickness of the top cover 3200 and the method of fixing the top cover 3200, the thickness is too thin and the buckling method of the fixed installation is not accurate and strong. After long-term use, the nozzle fixing component 300 will generate an upward impact under the strong water pressure of the pumped water. The nozzle will impact the fixing component 300, pressing the top cover buckle of the fixing component 300, which is easy to break, or the nozzle cannot be fixed and has a risk of failure.

[0071] Based on the discovery of the above-mentioned technical problems, the present invention rationally designs the liquid pumping device 1000, rationally arranges the pressure cover 200 and the top cover 3200 and the connection method between the two in the liquid pumping device 1000, and uses the dual fixing structure of the pressure cover 200 and the top cover 3200 to prevent the nozzle from loosening or mechanically damaged under repeated forces.

[0072] See Figure 1-9 The present invention provides a liquid pumping device 1000 for a liquid spraying device, which includes a housing 3000 and a nozzle 2000. One end of the nozzle 2000 is plugged into one end of the housing 3000, and the other end of the nozzle 2000 extends away from the housing 3000 along a first direction. When a user uses the liquid spraying device, the housing 3000 is a handheld component of the user, and the nozzle 2000 is a working component. Water is sprayed from the nozzle 2000 to clean the area to be cleaned. That is, the nozzle 2000 needs to pump out water through the liquid pumping device 1000 to start oral cleaning. That is, a liquid pumping device 1000 connected to the nozzle 2000 needs to be set in the housing 3000, and the water pumped by the liquid pumping device 1000 reaches the area to be cleaned through the nozzle 2000, thereby achieving oral cleaning.

[0073] The components of the pumping device 1000 and the connection relationship between the components are described in detail below.

[0074] See Figure 2 The pumping device 1000 includes a pumping assembly 100, a fixing assembly 300, a top cover 3200, and a gland 200. The pumping assembly 100 pumps water toward the nozzle 2000. The strong pressure of the pumped water generates an upward force on the nozzle. The dual fixing structure of the top cover 3200 and the gland 200 prevents the nozzle from loosening or mechanically damaging under repeated force.

[0075] Specifically, the pump assembly 100 is installed within the housing 3000 and pumps liquid in a first direction. Along the first direction, the top cover 3200, the housing 3000, and the pump assembly 100 form a housing. The top cover 3200 seals the pump assembly 100 within the housing 3000 and, positioned in the pumping direction of the pump assembly 100, counteracts the water pressure generated by the pump assembly 100.

[0076] Specifically, the gland 200 is disposed in the accommodation space and is connected to one side of the pump assembly 100 along the first direction, enclosing a defined space 400 with the pump assembly 100. In the pumping direction of the pump assembly 100, the gland 200 is disposed in addition to the top cover 3200. Similarly, the gland 200 cooperates with the top cover 3200 in the pumping direction to counteract the water pressure of the pump assembly 100, thereby preventing the nozzle 2000 from loosening under the repeated action of the water pressure.

[0077] Specifically, along a first direction, the top cover 3200 and the gland 200 are each provided with a through hole for the nozzle 2000 to extend into and connect with the pump assembly 100, for ejecting the liquid pumped by the pump assembly 100 from the nozzle 2000. In the pumping direction of the pump assembly 100, the nozzle 2000 passes through the top cover 3200 and the gland 200 and communicates with the pump assembly 100, so that water from the pump assembly 100 is ejected from the nozzle 2000 and reaches the area to be cleaned, completing the cleaning operation. The pump assembly 100 is connected to the nozzle 2000 and provides water to the nozzle 2000. Therefore, the water pressure of the water pumped by the pump assembly 100 directly acts on the nozzle 2000. Therefore, the purpose of providing the top cover 3200 and the gland 200 in the pumping direction is to counteract the water pressure of the pump assembly 100 so that the nozzle 2000 does not become loose under the repeated impact of the water pressure, thereby affecting the efficiency of the cleaning operation.

[0078] Specifically, the fixing assembly 300 is movably disposed within the confined space 400. The fixing assembly 300 has a first position for securing the nozzle 2000 within the through-hole and a second position for releasing the nozzle 2000 from the through-hole. The fixing assembly 300 is disposed within the confined space 400 formed between the gland 200 and the pump assembly 100, allowing the nozzle 2000 to move from the first position to the second position during the pumping process, thereby achieving cleaning.

[0079] See Figure 6 and Figure 7 In this embodiment, the gland 200 and the pump assembly 100 are fastened at multiple points.

[0080] Specifically, a plurality of third through holes 114 are recessed downwardly on the contact surface between the pump assembly 100 and the gland 200. Correspondingly, a plurality of connecting portions 220 are recessed downwardly on the bottom surface of the gland 200. The number of connecting portions 220 is the same as the number of the third through holes 114. The connecting portions 220 are inserted into the corresponding third through holes 114, achieving a multi-point fastening connection between the pump assembly 100 and the gland 200.

[0081] Specifically, a second through hole 240 is formed through the connecting portion 220. The diameter of the second through hole 240 is the same as the diameter of the third through hole 114. When the connecting portion 220 is inserted into the third through hole 114, a bolt is passed through the second through hole 240 to connect the third through hole 114, further strengthening the multi-point fastening connection between the pump assembly 100 and the gland 200.

[0082] As a specific embodiment, the number of the connecting portion 220 and the third through hole 114 is set according to the actual needs of those skilled in the art, with the purpose of fastening the pump liquid assembly 100 and the pressure cover 200 so that the pressure cover 200 can resist the force of the pump liquid assembly 100 pumping water pressure.

[0083] See Figure 8 and Figure 9 In this embodiment, the pressure cover 200 and the top cover 3200 are offset against each other. The purpose of this arrangement is that when the nozzle is impacted by water flow, the impact force generated by the pressure cover 200 and the top cover 3200 can be enhanced by the pressure cover 200 and the top cover 3200.

[0084] Specifically, the top cover 3200 covers the gland 200 and similarly cooperates with the gland 200 to resist the water pressure of the pump assembly 100. The top cover 3200 is positioned in the direction of water pumping. However, if there is a large gap between the gland 200 and the top cover 3200 in the direction of water pumping, i.e., in the first direction, the top cover 3200 cannot cooperate with the gland 200 to resist the impact of the water flow, causing the nozzle 2000 to loosen under the repeated action of the water pressure. Therefore, the top cover 3200 and the gland 200 are offset, eliminating the gap between them and enhancing the double-layered resistance of the gland 200 and the top cover 3200 to resist the impact of the water flow.

[0085] See Figure 1 and Figure 3 , the connection method between the top cover 3200 and the shell 3000 is described in detail below.

[0086] Specifically, a first buckle 3210 is provided on the bottom side of the top cover 3200, which faces the gland 200. Multiple first buckles 3210 are provided along the edge of the top cover 3200. Correspondingly, multiple third buckles are provided on the inner edge of the housing 3100. The number of third buckles is the same as the number of first buckles 3210. The first buckles 3210 and the third buckles are plugged together to connect the top cover 3200 to the housing 3000.

[0087] See Figure 2-4In this embodiment, the pump assembly 100 includes a mounting base 110 and a pumping member 120. The mounting base 110 is connected to the pumping end of the pumping member 120. One of the gland 200 and the mounting base 110 is covered on the outside of the other of the gland 200 and the mounting base 110 to form an accommodating space.

[0088] See Figure 2-4 In this embodiment, a connecting member 500 is further included, and the connecting member 500 is configured to be engaged with the housing 3000 of the liquid spraying device. The connecting member 500 is arranged at one end of the pressure cap 200 away from the pump assembly 100.

[0089] Specifically, a connector 500 is provided on the surface of the gland 200 facing the top cover 3200. A plurality of connectors 500 extend from the surface of the gland 200 toward the top cover 3200. Correspondingly, a second buckle 3220 is provided on the bottom surface of the top cover 3200 facing the gland 200. The second buckle 3220 extends from the bottom surface of the top cover 3200 toward the gland 200. The number of connectors 500 is the same as the number of second buckles 3220, and the positions of the connectors 500 correspond to those of the second buckles 3220. The second buckles 3220 engage with the connector 500 to connect the top cover 3200 and the gland 200, while also allowing the top cover 3200 and the gland 200 to abut against each other, eliminating any gap between them. The top cover 3200 is connected to the third buckle on the shell 3100 through the first buckle 3210, and is then connected to the connector 500 on the pressure cover 200 through the second buckle 3220, thereby achieving double buckle fixation.

[0090] As a specific embodiment, the connecting member 500 is disposed at an end of the mounting seat 110 away from the pumping member 120 , and the connecting member 500 is located outside the accommodating space.

[0091] Specifically, in this embodiment, the top cover 3200 is directly connected to the mounting base 110. That is, the mounting base 110 is provided with a plurality of connectors 500 that cooperate with the top cover 3200, and the second buckle 3220 provided on the top cover 3200 is connected to the connector 500, achieving a double buckle fixation.

[0092] When the pump assembly 100 pumps liquid toward the nozzle 2000 in a first direction, the nozzle 2000 transmits the impact force to the gland 200 and the pump assembly 100 through the fixed assembly 300. Because the gland 200 or the pump assembly 100 is engaged with the top cover 3200, the impact force is further transmitted to the top cover 3200 through the gland 200 and / or the pump assembly 100, allowing the pump assembly 100 and the top cover 3200 to jointly apply pressure to resist the impact. Thus, the combination of the pump assembly 100, the gland 200, and the top cover 3200 together form a double barrier that restricts the movement of the fixed assembly 300 in the first direction.

[0093] See Figure 2 、 Figure 5 and Figure 8 In this embodiment, the fixing assembly 300 is slidably disposed on the mounting base 110 along the second direction, and the defined space 400 has an opening at one end along the second direction. When the fixing assembly 300 moves from the first position to the second position, at least a portion of the fixing assembly 300 enters or exits the defined space 400 through the opening.

[0094] Specifically, the limited space 400 opens to the outside, and one end of the fixing assembly 300 slides into the opening from the outside along the second direction and abuts against a side of the mounting seat 110 facing the pressure cover 200. The fixing assembly 300 is provided to control the fixing and release of the nozzle.

[0095] The components and structures of the fixing assembly 300 and the connection method of its components are described in detail below.

[0096] See Figure 5 The fixing assembly 300 includes a sliding member 310, a reset member 330 and a driving portion (not shown). The sliding member 310 is provided with a through hole 320 that passes through the sliding member 310, and a snap portion 321 and a sleeve portion 322 are provided on opposite sides of the through hole 320. The snap portion 321 is snap-fitted and connected with the nozzle 2000 to fix the nozzle 2000, and the snap portion 321 is used to release and snap-fit ​​the nozzle 2000 passing through the through hole. One end of the reset member 330 is provided with a sleeve portion 322, and the other end abuts against the mounting seat 110 to drive the sliding member 310 to the first position when resetting, and the driven snap portion 321 snaps and fixes the nozzle 2000 passing through the through hole. The driving portion is used to drive the sliding member 310 to the second position to release the nozzle 2000 at the second position of the through hole, and the driving portion is arranged to extend out of the opening.

[0097] Specifically, one end of the slider 310 is provided with a through hole 320. The through hole 320 and the holes on the top cover 3200 and the pressure cover 200 allow the nozzle to extend through the connection pump liquid assembly 100. However, because the slider 310 can slide in the second direction, the through hole 320 of the slider 310 is different from the top cover 3200 and the pressure cover 200. Therefore, it can be seen that the through hole 320 is provided with a snap portion 321 and a sleeve portion 322 on opposite sides along the second direction. The fixing assembly 300 controls the fixing and release of the nozzle, wherein the snap portion 321 is used to fix the nozzle 2000. The snap portion 321 is configured as an inclined surface to facilitate better engagement and release of the nozzle. One end of the reset member 330 is sleeved on the sleeve portion 322, and the sleeve portion 322 is used to fix the reset member 330. The fixing or release of the nozzle is achieved by sliding the slider 310 so that the nozzle is located in the first position and the second position.

[0098] The reset member 330 is connected between the pressing cover 200 , one of the mounting seat 110 and the sliding member 310 , and the reset member 330 can provide an elastic reset force for the fixing assembly 300 to return from the second position to the first position.

[0099] As a specific implementation, the reset member 330 is configured as a spring.

[0100] Specifically, the reset member 330 extends from the inner wall of the through hole 320 toward the center and is retractably disposed within the through hole 320. One end of the reset member 330 is fixedly mounted on the sleeve portion 322. The reset member 330 is compressed from one end of the buckle portion 321 to one end of the sleeve portion 322, and is extended from one end of the sleeve portion 322 to one end of the buckle portion 321.

[0101] See Figure 1 and Figure 5 In this embodiment, the housing 3000 is provided with an opening 324 along the second direction, the driving portion slides out of the housing 3000 through the opening 324, the driving portion is connected to one end of the sliding member 310, and the driving portion drives the sliding member 310 to slide along the second direction.

[0102] Specifically, the drive unit is configured as a first drive unit 323. The first drive unit 323 slides into the housing 3000 through an opening 324 formed in the housing 3000 and engages with the mounting base 110 to release and secure the nozzle. One end of the first drive unit 323 is connected to the slider 330, and the other end extends away from the slider 330.

[0103] The second structure of the fixing assembly 300 is described in detail below.

[0104] See Figure 10The fixing assembly 300 also has a second structure that differs from the previously described structure. In this embodiment, to distinguish it from the first structure, the driving unit is configured as a second driving unit (not shown). The second driving unit extends out of the top cover 3200 and includes a button 340 and an elastic member 350. A driving surface 3400 is provided on one side of the button 340 for driving the slider 310. The button 340 slides within the button hole 340 defined in the top cover 3200. One end of the elastic member 350 is connected to the button 340, and the other end abuts the mounting base 110 to drive the button 340 to reset.

[0105] Specifically, a button hole 340 is opened on the top cover 3200, and the button 340 is inserted into the button hole 340 and slidably arranged. The button 340 has a driving surface 3400 for driving the sliding member 310 to move. The driving surface 3400 is used to convert the movement of the pressing direction of the button 340 into the movement of the driving surface 3400 in the intersecting and pressing directions.

[0106] Preferably, the driving surface 3400 is configured as an inclined surface to facilitate better driving the sliding member 310 to move.

[0107] Specifically, the elastic member 350 can be a compression spring, one end of the elastic member 350 is connected to the mounting base 110, and the other end is connected to the button 340 to drive the button 340 to reset. The elastic member 350 can automatically reset the button 340 after being pressed, so as to facilitate the next press.

[0108] Specifically, the button 340 is connected to the slider 310 by the driving surface 3400, so that when the button 340 is pressed downward, the driving surface 3400 drives the slider 310 to move, so that the latch portion 321 stuck in the groove 2100 is disengaged, the nozzle is released, and the nozzle can be pulled out. When the switch is released, the reset member 330 is used to reset the slider 310, and the elastic member 350 is used to reset the button 340. The latch portion 321 is kept in the state of being stuck in the groove 2100 and the button 340 is kept in the state of being pushed upward. Because the latch portion 3110 is provided with an inclined surface, when the nozzle is directly plugged in without the button 340, the inclined surface pushes the slider 310 in the release direction, and then the reset member 330 returns to its position, locking the latch portion 321 into the groove 2100.

[0109] See Figure 7 、 Figure 8 and Figure 9 In this embodiment, one of the pressure cover 200 and the mounting seat 110 has a limit member 600, and the limit member 600 is passed through the through hole 320. One end of the reset member 330 abuts against the limit member 600, and the other end is connected to the sleeve portion 322.

[0110] Specifically, a limiting member 600 is provided in the through hole 320 and extends radially toward the center of the through hole 320 , that is, both side ends of the limiting member 600 are connected to the inner hole wall of the through hole 320 , and the upper and lower ends of the limiting member 600 are passed through the through hole 320 .

[0111] Preferably, the reset member 330 is sleeved on the outer side of the limiting member 600 .

[0112] Specifically, one end of the position-limiting member 600 is connected to the mounting base 110, and the other end extends toward the gland 200. Alternatively, one end of the position-limiting member 600 is connected to the gland 200, and the other end extends toward the mounting base 110. Both sides of the position-limiting member 600 extend in an arc shape and bend toward the countersunk hole 113. The other side of the position-limiting member 600 abuts against the reset member 330, providing support for the reset member 330 and allowing it to expand and compress.

[0113] Preferably, the limiting member 600 is arranged in a semicircular shape along the edge of the countersunk hole 113. The purpose of such arrangement is that the outer side of the nozzle is an arc surface, which is convenient for limiting the nozzle penetrating the countersunk hole 113.

[0114] See Figure 5 、 Figure 7 and Figure 8 In this embodiment, at least one of the pressure cover 200 and the mounting base 110 is provided with a slide rail 700. The sliding member 310 is slidably mounted on the slide rail 700 along the second direction. The slide rail 700 extending along the second direction is provided on the pressure cover 200 or the mounting base 110 to guide the reset member 330.

[0115] Specifically, at least two slide rails 700 are provided and are spaced apart. One end of the slide rail 700 is provided on the mounting seat 110 or the gland 200, and the other end extends toward the gland 200 or the mounting seat 110. It can also be understood that the first structure is that one end of the slide rail 700 is provided on the mounting seat, and the other end extends from the mounting seat 110 toward the gland 200; the second structure is that one end of the slide rail 700 is provided on the gland 200, and the other end extends from the gland 200 toward the mounting seat 110. One end of the slide rail 700 is connected to the semicircular limit member 600, and the other end extends along the second direction away from the limit member 600 toward the opening 324. There is a gap between the two slide rails 700, and the reset member 330 can be extended and retracted in the gap. Each slide rail 700 guides the reset member 330, ensuring that the reset member 330 can abut the limit member 600 to the maximum extent along the second direction. At this time, the elastic force compressed by the reset member 330 is also ensured to be the maximum force, which can facilitate the reset member 330 to be reset better and more quickly.

[0116] See Figure 5 and Figure 8, the working process of fixing and releasing the nozzle by the fixing component 300 is described in detail below.

[0117] Specifically, the slider 310 slides with the mounting base 110. A portion of the slider 310 is exposed outside the body, which is used to press and push the slider 310 to secure the nozzle. A reset member 330 is provided on the slider 310, ensuring that the slider 310 always snaps into the groove 2100 in the nozzle to secure the nozzle. To release the nozzle, the portion of the slider 310 exposed on the body surface is pressed, which restrains the elastic force of the reset member 330 and pushes the slider 310 in the other direction, allowing the latch 3110 to leave the groove 2100 and the nozzle to be removed. When the slider 310 is loosened again, the elastic force of the reset member 330 directly resets the slider 310. The part where the sliding part 310 and the nozzle groove 2100 snap together 3110 is set to an oblique chamfer, which is beneficial for the nozzle to directly push the sliding part 310 to move in one direction without pressing the exposed part of the sliding part 310 outside the fuselage until the sliding part 310 is snapped together 3110 with the groove 2100 again due to the action of the reset part 330.

[0118] See Figure 2 、 Figure 7 and Figure 8 , the mounting seat 110 is firmly connected to the pumping member 120 .

[0119] See Figure 7 The mounting base 110 includes a mounting plate 111 and a mounting protrusion 112 . The mounting plate 111 is connected to the pressure cover 200 . The mounting protrusion 112 is connected to one end of the mounting plate 111 away from the pressure cover 200 and is provided with a charging socket 4000 .

[0120] Specifically, the mounting base 110 is provided with a mounting plate 111 on one side close to the gland 200, and is connected to the gland 200 via the mounting plate 111. As described above, the buckle 3110 and the third through hole 114 are both provided on the mounting plate 111.

[0121] Specifically, a mounting protrusion 112 extends downward from the side of the mounting base 110 facing away from the gland 200, and a charging socket 4000 is provided on one side of the mounting protrusion 112. Correspondingly, a mounting hole is provided through the outer periphery of the housing 3000, through which an external power source can be connected to the charging socket 4000.

[0122] See Figure 4 The pumping part 120 includes a first assembly part 121, a pumping part 123 and a second assembly part 122. The first assembly part 121 and the second assembly part 122 are arranged on opposite sides of the pumping part 123. The first assembly part 121 is configured to install the energy part 5000, and the second assembly part 122 is configured to install the controller 6000.

[0123] Please continue to see Figure 4 The mounting base 110 is provided with a countersunk hole 113 for the nozzle 2000 to pass through, and the large diameter end of the countersunk hole 113 faces the pumping part 120 and accommodates at least part of the pumping part 120. The pumping part 120 has a pumping hole 124 for the nozzle 2000 to pass through.

[0124] Specifically, the pump hole 124 is connected to the top cover 3200, the pressure cover 200 and the through hole 320, so that the nozzle 2000 extends into the pump part 123. The water pumped out by the pump part 123 reaches the nozzle through the pump hole 124 to achieve cleaning work.

[0125] Example 2

[0126] See Figure 1 This embodiment provides an oral cleaner, including a shell 3000, a nozzle 2000 and a pumping device 1000 of embodiment 1. The pumping device 1000 is arranged in the inner cavity of the shell 3000, and the nozzle 2000 is passed through the shell 3000 and connected to the pumping component 100 of the pumping device 1000.

[0127] Specifically, the housing 3000 includes a shell 3100 having an open end and a top cover 3200 covering the open end. One of the pump assembly 100 and the pressure cover 200 of the pump device 1000 is engaged with the top cover 3200 .

[0128] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, they are not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the above-mentioned technical contents without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A liquid pump device for a liquid spraying device, wherein the liquid spraying device comprises a housing and a nozzle, characterized in that: The pumping device comprises: a pumping assembly, a fixing assembly, a top cover and a gland; The pump assembly is installed in the housing, and the pump assembly pumps liquid along a first direction; Along the first direction, the top cover, the housing and the pump assembly form a receiving space; The gland is disposed in the accommodating space, and the gland is connected to one side of the pump assembly along the first direction and encloses a defined space with the pump assembly; Along the first direction, the top cover and the pressure cover are both provided with through holes for the nozzle to extend into and connect with the pump assembly, so as to spray the liquid pumped by the pump assembly out of the nozzle; The fixing assembly is movably disposed in the confined space, and the fixing assembly is configured to fix the nozzle at a first position of the through hole and release the nozzle at a second position of the through hole.

2. The pumping device according to claim 1, characterized in that The gland is fastened to the pump assembly at multiple points.

3. The pumping device according to claim 1, characterized in that The pressure cover abuts against the top cover.

4. The pumping device according to claim 1, characterized in that The pump assembly includes a mounting seat and a pump component, the mounting seat is connected to the pump end of the pump component, the top cover, the housing, and the mounting seat form the accommodating space, and / or the mounting seat is connected to the housing; The pressure cover and the mounting seat form the defined space.

5. The pumping device according to claim 4, characterized in that It also includes a connecting piece, the connecting piece is configured to be engaged with the top cover of the liquid spraying device, and the connecting piece is arranged at an end of the pressure cover away from the pump assembly; Alternatively, the connecting member is arranged at an end of the mounting seat away from the fluid pumping member, and the connecting member is located outside the limited space.

6. The liquid pumping device according to claim 4 or 5, characterized in that: The fixing assembly is slidably disposed on the mounting seat along a second direction; One end of the defined space along the second direction has an opening; During the movement of the fixing assembly from the first position to the second position, at least a portion of the fixing assembly passes through the opening into or out of the confined space.

7. The liquid pumping device according to claim 6, characterized in that The fixing assembly includes: A sliding member is provided with a through hole passing through the sliding member, and a snap portion and a sleeve portion are provided on opposite sides of the through hole, wherein the snap portion is used to release and engage the nozzle penetrating the through hole; A reset member, wherein one end of the reset member is provided with the sleeve portion, and the other end abuts against the mounting seat to drive the sliding member to the first position when resetting, and drives the buckle portion to engage and fix the nozzle penetrating the through hole; The driving part is used to drive the sliding member to the second position to release the nozzle at the second position of the through hole, and the driving part is arranged to extend out of the opening.

8. The pumping device according to claim 7, characterized in that: The shell is provided with an opening along the second direction, the driving portion slides out of the shell through the opening, the driving portion is connected to one end of the sliding member, and the driving portion drives the sliding member to slide along the second direction.

9. The liquid pumping device according to claim 7, characterized in that: The driving part extends out of the top cover, and the driving part includes: A button, wherein a driving surface for driving the sliding member is provided on one side of the button, and the button is slidably arranged in a button hole provided on the top cover; An elastic member, one end of which is connected to the button, and the other end of which abuts against the mounting seat to drive the button to reset.

10. The liquid pumping device according to claim 7, characterized in that: One of the gland and the mounting seat has a limiting member, which is inserted into the through hole. The reset member is a spring, one end of which abuts against the limiting member and the other end is connected to the sleeve portion. And / or, at least one of the pressure cover and the mounting seat is provided with a slide rail; the sliding member is slidably arranged on the slide rail along the second direction.

11. The liquid pumping device according to claim 4, characterized in that The mounting seat is firmly connected to the pumping element; And / or, the mounting base includes a mounting plate and a mounting protrusion, the mounting plate is connected to the gland, and the mounting protrusion is connected to an end of the mounting plate facing away from the gland and is provided with a charging socket; And / or, the liquid pump component includes a first assembly portion, a liquid pump portion, and a second assembly portion, the first assembly portion and the second assembly portion are arranged on opposite sides of the liquid pump portion, the first assembly portion is configured to install the energy component, and the second assembly portion is configured to install the controller; And / or, the mounting seat is provided with a countersunk hole for the nozzle to pass through, the large diameter end of the countersunk hole faces the pumping component and accommodates at least part of the pumping component; the pumping component has a pumping hole for the nozzle to pass through.

12. An oral cleaner, characterized in that: It comprises a shell, a nozzle and a pumping device according to any one of claims 1 to 11, wherein the pumping device is arranged in the inner cavity of the shell, and the nozzle is passed through the shell and connected to the pumping component of the pumping device.

13. The oral cleaner according to claim 12, characterized in that The housing includes a shell having an open end and a top cover covering the open end, and one of the pump assembly and the pressure cover of the pump device is engaged with the top cover.

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