WO2022147929A1

WO2022147929A1 - Oral irrigator and water suction pump

Info

Publication number: WO2022147929A1
Application number: PCT/CN2021/090068
Authority: WO
Inventors: 麦华彬
Original assignee: 爱几度（深圳）科技有限公司
Priority date: 2021-01-11
Filing date: 2021-04-26
Publication date: 2022-07-14
Also published as: CN112746952A

Abstract

A water suction pump and an oral irrigator provided with same. The water suction pump comprises a pump body (11) and a piston assembly (12) arranged in the pump body (11) in a reciprocating manner, wherein the pump body (11) and/or the piston assembly (12) are/is provided with an accommodating cavity (111) for accommodating lubricating oil to lubricate the piston assembly (12) when the piston assembly (12) reciprocates. The water suction pump further comprises an oil injection channel (131), which is in communication with the accommodating cavity (111), so as to inject the lubricating oil into the accommodating cavity (111). The water suction pump can inject the lubricating oil into the accommodating cavity (111) on the pump body (11) and/or the piston assembly (12) within a set time by means of arranging the oil injection channel (131) on a side wall of the pump body (11), thereby avoiding the phenomenon of the lubricating oil in the pump body (11) being used up, such that a piston is worn, and thus the oral irrigator is inconvenient to use or is scrapped.

Description

Dental irrigator and water pump

technical field

The present invention relates to a tooth cleaning appliance, and more particularly, to a dental irrigator and a water pump. The present invention relates to a tooth cleaning appliance, and more particularly, to a tooth irrigator and a water pump.

Background technique

The tooth piercer in the related art needs to add lubricating oil between the body of the water pump and the piston assembly to facilitate the movement of the piston assembly.

technical problem

In the related art, lubricating oil is injected in advance, and when the lubricating oil is used up, it cannot be added by itself, which leads to wear of the piston, which in turn reduces the smoothness of the movement of the piston assembly.

technical solutions

The technical problem to be solved by the present invention is to provide an improved water pump, and further provide an improved dental irrigator.

The technical solution adopted by the present invention to solve the technical problem is: constructing a pumping pump, including a pump body and a piston assembly that can be reciprocated and arranged in the pump body;

An accommodating cavity for accommodating lubricating oil to lubricate the piston assembly when the piston assembly reciprocates is provided on the pump body and/or on the piston assembly;

The suction pump further includes an oil injection channel communicating with the accommodating cavity to inject lubricating oil into the accommodating cavity.

Preferably, the side wall of the pump body is provided with an oil injection pipe that communicates with the accommodating cavity to inject lubricating oil into the accommodating cavity;

The oil injection channel is arranged in the oil injection pipe.

Preferably, the oil injection pipe extends toward the outside of the pump body; an access port for receiving lubricating oil is provided at one end of the oil injection pipe away from the accommodating cavity;

The access port is detachably provided with a cap.

Preferably, the suction pump further includes an oil storage tank communicated with the oil injection channel.

Preferably, one end of the oil storage tank away from the oil filling channel is provided with an opening for loading lubricating oil;

The opening is detachably provided with a cap.

Preferably, the suction pump further comprises a power mechanism for pressing the lubricating oil in the oil storage tank into the oil injection channel;

The power mechanism includes a pressing rod extending into the oil storage tank from an end away from the oil injection channel and capable of pressing lubricating oil into the oil injection channel through reciprocating motion.

Preferably, the oil storage tank is provided with an opening, and the oil storage tank is provided with a reciprocating motion in the oil storage tank to push out the lubricating oil in the oil storage tank from the oil filling passage to the accommodating cavity pusher;

The pump body is provided with a pumping channel for the piston assembly to pump out water; the piston assembly reciprocates in the pump body so that water is injected into the pumping channel to form power to drive the pusher to reciprocate.

Preferably, the oil storage tank is arranged on the piston assembly, and communicates with the accommodating cavity through the oil filling channel, and the pushing member is arranged close to the water pumping channel.

Or, the oil storage tank is arranged on the outer side of the pump body, and the opening of the oil storage tank is provided with a communication channel that communicates with the water pumping channel; the pushing member includes the lubricating oil in the oil storage tank. The pushing part pushed out and the matching part arranged through the communication channel.

Preferably, the accommodating cavity includes a first cavity and a second cavity, and the first cavity and the second cavity are arranged in sequence along the movement direction of the piston assembly;

The oil storage tank is arranged on the outer side of the pump body, and the oil filling channel includes a first oil filling channel connecting the oil storage cavity and the first cavity, and connecting the oil storage cavity and the second cavity The second oil filling channel of the body.

Preferably, the accommodating cavity is provided with a protrusion that divides the accommodating cavity into the first cavity and the second cavity.

Preferably, the protrusion is disposed on the inner side wall of the pump body and moves relative to the piston assembly to change the volumes of the first cavity and the second cavity.

Preferably, the protrusion is arranged on the piston assembly and is driven by the piston assembly to reciprocate to change the volumes of the first cavity and the second cavity.

The present invention also constructs a dental irrigator, comprising a casing, the suction pump of the present invention arranged in the casing, and a nozzle assembly arranged on the casing and connected to the suction pump.

beneficial effect

Implementing the tooth irrigator and the water pump of the present invention has the following beneficial effects: the water pump can inject into the accommodating cavity on the pump body and/or on the piston assembly at a set time by setting the oil injection channel lubricating oil, so as to avoid the wear of the piston caused by the exhaustion of the lubricating oil in the pump body, and the inconvenience or scrapping of the tooth punch.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments, in which:

Fig. 1 is the sectional view of the tooth punch in the first embodiment of the present invention;

Fig. 2 is the partial structure schematic diagram of the tooth piercing device shown in Fig. 1;

Fig. 3 is the structural schematic diagram of the dental irrigator in the second embodiment of the present invention;

Fig. 4 is the partial structure schematic diagram of the tooth piercing device shown in Fig. 3;

Fig. 5 is the structural schematic diagram of the dental irrigator in the third embodiment of the present invention;

Fig. 6 is the partial structure schematic diagram of the tooth punch shown in Fig. 5;

Fig. 7 is the structural schematic diagram of the tooth irrigator in the fourth embodiment of the present invention;

Fig. 8 is the partial structure schematic diagram of the tooth piercing device shown in Fig. 7;

Fig. 9 is the structural schematic diagram of the dental irrigator in the fifth embodiment of the present invention;

Fig. 10 is the partial structure schematic diagram of the tooth piercing device shown in Fig. 9;

FIG. 11 is an enlarged schematic view of a partial structure of the dental irrigator shown in FIG. 10 .

BEST MODE FOR CARRYING OUT THE INVENTION

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1 and 2 show the first embodiment of the tooth scaler of the present invention. The tooth scaler has the advantages of convenient use, long service life and low use cost. In some embodiments, the scaler may include a housing 20 , a sump pump 10 and a nozzle assembly 30 . The casing 20 can be used for accommodating the suction pump 10, and can form a liquid storage chamber for storing cleaning liquid. The suction pump 10 can be arranged in the casing 10 and can be used to extract the cleaning liquid in the liquid storage cavity of the casing 10 . The nozzle assembly 30 can be disposed at one end of the housing 10 and can be connected to the suction pump 10 for spraying cleaning liquid.

Further, in this embodiment, the suction pump 10 can be used for a dental irrigator. Of course, it is understood that in other embodiments, the suction pump 10 is not limited to be used in a dental irrigator. The suction pump 10 may include a pump body 11 and a piston assembly 12 . The pump body 11 is a hollow structure, which can be loaded into the piston assembly 12 and can be reciprocated by the piston assembly 12 . In some embodiments, the piston assembly 12 can be disposed in the pump body 11 , and can reciprocate in the pump body 11 , thereby pumping the cleaning liquid in the liquid storage chamber in the housing 10 to the nozzle assembly 30 .

Further, in this embodiment, the piston assembly 12 may include a piston 121 and a waterproof sealing sleeve 122 . The piston 121 can be reciprocatingly disposed in the pump body 11 , the waterproof sealing sleeve 122 can be sleeved on the piston 121 , and the waterproof sealing sleeve 122 can be an elastic structure. In some embodiments, the waterproof sealing cover 122 may be a silicone cover or a rubber cover. The maximum radial dimension of the waterproof sealing sleeve 122 can be adapted to the radial dimension of the pump body 11 , and can then abut with the inner side wall of the pump body 11 to form a sealed connection, thereby avoiding the possibility of a The cavity communicates with the cavity at the other end of the piston 121 to prevent liquid from leaking from the cavity at one end of the piston 121 to the cavity at the other end of the piston 122 .

Further, in this embodiment, an accommodating cavity 111 can be provided between the inner side wall of the pump body 11 and the piston assembly 12 , and the accommodating cavity 111 can be located on the waterproof sealing sleeve 122 and can be located along the waterproof sealing sleeve The circumferential direction of the 122 is disposed on the outer peripheral wall of the waterproof sealing sleeve 122, and the accommodating cavity 111 may be an annular cavity. The accommodating cavity 111 can be used for accommodating lubricating oil.

Further, in this embodiment, an oil injection pipe 13 may be provided on the side wall of the pump body 11, and the oil injection pipe 13 may extend toward the outside of the pump body 11. In some embodiments, the oil injection pipe 131 may extend along the It extends radially towards the outside of the pump body 11 to the side wall of the housing 20 . The oil filling pipe 131 can be communicated with the accommodating cavity 111 , so that lubricating oil can be injected into the accommodating cavity 111 through the oil filling pipe 131 , and then lubrication can be added to the accommodating cavity 111 in time at a set time or when the lubricating oil is used up oil, to avoid the wear of the piston 121, which would lead to inconvenience or scrapping of the tooth piercer. In some embodiments, an oil injection channel 131 may be provided on the side wall of the pump body 11 , and the oil injection channel 131 may be formed in the oil injection pipe 13 and communicated with the accommodating cavity 111 to inject into the accommodating cavity 111 lubricating oil. In some embodiments, the oil injection channel 131 may be tapered, and its radial dimension may be gradually reduced toward one end of the accommodating cavity 111 , so as to increase the oil injection pressure.

Further, in this embodiment, an access port can be provided at one end of the oil injection pipe 13 away from the accommodating cavity 111 , and the access port can be used for lubricating oil. In some embodiments, the suction pump may further include a cap 14 , which is detachably disposed at the access port, and can cover the oil filling channel 131 when oil filling is not required to avoid oil leakage. When lubricating oil needs to be injected, the cap 14 can be opened for injecting lubricating oil. In some embodiments, the cap 14 can be detachably connected to the access port by providing a snap structure. Of course, it can be understood that, in some other embodiments, the cap 14 can also be screwed with the access port by setting a threaded structure.

FIG. 3 and FIG. 4 show the second embodiment of the dental irrigator of the present invention, which is different from the first embodiment in that it further includes an oil storage tank 15 . The oil storage tank 15 can be disposed on the outer side wall of the pump body 11 , can be located in the casing 11 , and can extend to the top wall of the casing 11 along the longitudinal direction of the casing 11 . The oil storage tank 15 may be communicated with the oil filling channel 131, and the oil storage tank 15 may be used for storing lubricating oil. In this embodiment, one end of the oil storage tank 15 away from the oil filling channel 131 may be provided with an opening, and the opening may be opened on the top wall of the housing 11 , and the opening may be used to supply lubricating oil into the oil storage tank 15 .

In this embodiment, a cap 14 can be provided on the opening, and the cap 14 can be detachably connected to the opening. The cap 14 can be used to cover the opening to avoid oil leakage. When the oil storage tank 15 needs to be refueled, the cap 14 can be opened for refueling. In some embodiments, the cap 14 can be detachably connected to the opening by providing a snap structure, or can be detachably connected to the opening by providing a threaded structure.

In this embodiment, the suction pump may further include a power mechanism, and the power mechanism 16 may be disposed in the oil storage tank 15 to be used for pressing the lubricating oil in the oil storage tank 15 into the oil injection channel 131 . In some embodiments, the power mechanism 16 can be a pressure rod, the pressure rod can extend into the oil storage tank 15 from an end away from the oil filling channel 131 , and can reciprocate along the longitudinal direction of the oil storage tank 15 , and then can The lubricating oil is pressed into the oil filling channel 131 , so that the accommodating cavity 111 is filled with oil. During use, the user can open the cap 14 when the set period or when the lubricating oil in the accommodating cavity 111 is used up, and use a tool, such as a screwdriver, to press the pressure rod, so that the lubricating oil can be injected into the accommodating cavity 111 , to prevent the wear of the piston 121 due to the drying of the lubricating oil.

FIG. 5 and FIG. 6 show the third embodiment of the dental irrigator of the present invention, which is different from the second embodiment in that the suction pump can automatically fill the lubricating oil into the accommodating cavity 111 , so that the oil filling can be improved. convenience.

In this embodiment, the pump body 11 can be provided with a water pumping channel 112 , the water pumping channel 112 can communicate with the nozzle assembly 30 , and the water pumping channel 112 can be used for the piston assembly 12 to pump water to the nozzle assembly 30 .

In this embodiment, the oil storage tank 15 may be disposed on the piston assembly 12 , and specifically, the oil storage chamber 15 may be disposed on the piston rod of the piston 12 and may be disposed along the axial direction of the piston rod. The oil filling pipe 13 can be disposed on the inner side wall of the pump body 11 and can extend radially toward the waterproof sealing sleeve 122 , so that the liquid storage cavity 15 is communicated with the accommodating cavity 111 . In some embodiments, there may be a plurality of the oil injection pipes 13 , and the plurality of oil injection pipes 13 may be arranged at intervals along the circumferential direction of the pump body 11 . In this embodiment, the oil storage tank 15 may be provided with an opening, and the opening may be flush with the end surface of the piston rod of the piston 12 . In this embodiment, a pushing member 151 may be disposed in the oil storage tank 15, and the pushing member 151 may be located in the oil storage tank 15 and may reciprocate along the movement direction of the piston assembly 12, and may move the oil storage tank 15 through the reciprocating motion. The lubricating oil in the oil is pushed out from the oil injection channel 131 into the accommodating cavity 111 . In some embodiments, the cross-sectional size of the pushing member 151 can be adapted to the cross-sectional size of the oil storage tank 15 , so that the oil storage chamber 15 can be divided into two non-communicating chambers during the movement. In this embodiment, the pushing member 151 can be disposed close to the water pumping channel 112 . When the piston assembly 12 reciprocates in the pump body 11 , water can be injected into the water pumping channel 112 to generate power to drive the pushing member 151 to reciprocate. .

FIG. 7 and FIG. 8 show the fourth embodiment of the tooth irrigator of the present invention, which is different from the third embodiment in that the oil storage tank 15 can be arranged on the outside of the pump body 11, and the oil filling pipe 13 can be directed toward the The outer side of the pump body 11 extends out, and the oil storage tank 15 communicates with the accommodating cavity 111 .

In the present embodiment, the opening of the oil storage tank 15 may be disposed on the communication channel 152 connected to the water pumping channel 112 , and the communication channel 152 can allow part of the water in the water pumping channel 112 to enter above the pushing member 151 of the oil storage chamber 15 in the chamber. The pushing member 151 may include a pushing portion 1511 and a matching portion 1512 , the pushing portion 1511 may be located in the oil storage tank 15 , and the cross-sectional size may be adapted to the cross-sectional size of the fuel storage tank 15 , and the matching portion 1512 may be provided One end of the push portion 1511 can be inserted into the communication channel 152. When the communication channel 152 is filled with water, water pressure can be generated to drive the matching portion 1512 to press down, thereby driving the push portion 1511 to push the oil storage tank. Lubricant in 15 pushes out.

9 to 11 show the fifth embodiment of the present invention, which is different from the third embodiment in that the accommodating cavity 111 may not be limited to being disposed on the inner side wall of the pump body 11 , and the accommodating cavity 111 may be It is arranged on the outer side wall of the waterproof sealing sleeve 122 of the piston assembly 12 . The accommodating cavity 111 may include a first cavity 1111 and a second cavity 1112. The first cavity 1111 and the second cavity 1112 may be arranged in sequence along the movement direction of the piston assembly 12. The first cavity 1111 And the end face of the second cavity 1112 is in sealing contact with the waterproof sealing sleeve 122 of the piston assembly 12 . Specifically, the accommodating cavity 111 can be divided into a first cavity 1111 and a second cavity by disposing a protrusion 1113 protruding toward the waterproof sealing sleeve 122 in the accommodating cavity 111 . 1112. In this embodiment, the protrusion 1113 can be disposed on the inner side wall of the pump body 11 and can move relative to the piston assembly 12 , thereby changing the volumes of the first cavity 1111 and the second cavity 1112 . Of course, it can be understood that in other embodiments, the protrusion 1113 can be disposed on the waterproof sealing sleeve 122, and can be disposed protruding toward the inner side wall of the pump body 11, and can be driven by the piston assembly 12 to reciprocate. Further, the volumes of the first cavity 1111 and the second cavity 1112 can be changed. In this embodiment, the first cavity 1111 and the second cavity 1112 may be disposed on two opposite sides of the piston assembly 12. Of course, it can be understood that in other embodiments, the first cavity 1111 and The second cavity 1112 may also be located on the outer circumference of the piston assembly 12, and may be an annular cavity provided along the circumferential direction of the piston assembly 12.

In this embodiment, the oil storage tank 15 may be disposed on the outer side of the pump body 11 , and may be located on one side or two opposite sides of the pump body 11 . In other embodiments, the oil storage tank 15 may be disposed along the circumferential direction of the pump body 11 , and may be an annular tank body. The oil injection pipe 13 may include two oil injection pipes 13 , and the two oil injection pipes 13 may be disposed corresponding to the two first cavities 1111 and the second cavity 112 . In some embodiments, the oil injection channel 131 may include a first oil injection channel 131 a and a second oil injection channel 131 b , and the first oil injection channel 131 a and the second oil injection channel 131 b may be provided in a one-to-one correspondence with the two oil injection pipes 13 . The first oil filling passage 131 a can communicate with the oil storage tank 15 and the first cavity 1111 , and the second oil filling passage 131 b can communicate with the oil storage cavity 15 and the second cavity 1112 . When the piston assembly 12 is in motion, the volumes of the first cavity 1111 and the second cavity 1112 will change, so that the piston assembly 12 can discharge or extract the lubricating oil in the oil storage tank 15 , so that the piston assembly 12 can The lubricating oil is recycled to keep the lubricating oil in the accommodating cavity 111 all the time.

It can be understood that the above examples only represent the preferred embodiments of the present invention, and the descriptions thereof are more specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention; it should be noted that for those of ordinary skill in the art In other words, without departing from the concept of the present invention, the above-mentioned technical features can be freely combined, and some deformations and improvements can also be made, and these all belong to the protection scope of the present invention; All equivalent transformations and modifications made shall fall within the scope of the claims of the present invention.

Claims

A pumping pump, characterized by comprising a pump body (11), and a piston assembly (12) reciprocatingly disposed in the pump body (11);

An accommodating cavity for accommodating lubricating oil to lubricate the piston assembly (12) when the piston assembly (12) reciprocates is provided on the pump body (11) and/or on the piston assembly (12) (111);

The suction pump further includes an oil injection channel (131) communicating with the accommodating cavity (111) to inject lubricating oil into the accommodating cavity (111).
The suction pump according to claim 1, characterized in that, a side wall of the pump body (11) is provided with a connection with the accommodating cavity (111) to inject lubricating oil into the accommodating cavity (111). The oil filling pipe (13);

The oil injection channel (131) is arranged in the oil injection pipe (13).
The suction pump according to claim 2, characterized in that, the oil injection pipe (13) extends toward the outside of the pump body (11); the oil injection pipe (13) is away from the accommodating cavity (111) One end is provided with an access port for accessing lubricating oil;

A cap (14) is detachably provided at the access port.
The suction pump according to claim 1, characterized in that, the suction pump further comprises an oil storage tank (15) communicated with the oil filling passage (131).
The suction pump according to claim 4, characterized in that, an opening for loading lubricating oil is provided at one end of the oil storage tank (15) away from the oil filling channel (131);

The opening is detachably provided with a cap (14).
The suction pump according to claim 4, characterized in that, the suction pump further comprises a power mechanism (16) for pressing the lubricating oil in the oil storage tank (15) into the oil injection channel (131);

The power mechanism (16) includes a pressure rod extending into the oil storage tank (15) from an end away from the oil injection channel (131) and capable of pressing lubricating oil into the oil injection channel (131) through reciprocating motion.
The suction pump according to claim 4, characterized in that, the oil storage tank (15) is provided with an opening, and the oil storage tank (15) is provided with a reciprocating movement in the oil storage tank (15) The lubricating oil in the oil storage tank (15) is pushed out from the oil injection channel (131) to the pusher (151) of the accommodating cavity (111);

The pump body (11) is provided with a water pumping channel (112) for the piston assembly (12) to pump out water; the piston assembly (12) reciprocates in the pump body (11) so that the The water is injected into the water pumping channel (112) to form power to drive the pusher (151) to reciprocate.
The suction pump according to claim 7, characterized in that, the oil storage tank (15) is arranged on the piston assembly (12), and communicates with the accommodating cavity (111) through the oil injection channel (131) communicated, the pusher (151) is disposed close to the water pumping channel (112);

Alternatively, the oil storage tank (15) is arranged on the outside of the pump body (11), and the opening of the oil storage tank (15) is provided with a communication channel (152) that communicates with the water pumping channel (112). ; The pushing member (151) includes a pushing portion (1511) for pushing out the lubricating oil in the oil storage tank (15) and a matching portion (1512) arranged through the communication passage (152).
The suction pump according to claim 4, wherein the accommodating cavity (111) comprises a first cavity (1111) and a second cavity (1112), the first cavity (1111) and the The second cavity (1112) is arranged in sequence along the movement direction of the piston assembly (12);

The oil storage tank (15) is arranged on the outer side of the pump body (11), and the oil filling passage (131) includes a first oil filling connecting the oil storage cavity (15) and the first cavity (1111) A channel (131a), and a second oil injection channel (131b) communicating with the oil storage cavity (15) and the second cavity (1112).
The suction pump according to claim 9, characterized in that, the accommodating cavity (111) is provided with a first cavity (1111) and a second cavity that divide the accommodating cavity (111) into the first cavity (1111) and the second cavity. (1112) of the bump (1113).
The suction pump according to claim 10, characterized in that, the protrusion (1113) is provided on the inner side wall of the pump body (11) and moves relative to the piston assembly (12) to change the Volumes of the first cavity (1111) and the second cavity (1112).
The suction pump according to claim 10, characterized in that, the protrusion (1113) is provided on the piston assembly (12) and is driven by the piston assembly (12) to reciprocate to change the first cavity volume of the body (1111) and the second cavity (1112).
A dental irrigator, characterized in that it comprises a casing (20), the suction pump (10) according to any one of claims 1 to 12 disposed in the casing (20), and a water pump (10) disposed in the casing (20) The nozzle assembly (30) on the body (20) is connected with the suction pump (10).