CN108703814A - Water toothpick piston packing, the pump housing and water toothpick - Google Patents

Abstract

The invention discloses a tooth washer piston sealing ring, a pump body and a tooth washer. The tooth washer piston sealing ring is arranged at the piston end of the tooth washer pump body, and includes a cylindrical sealing ring body. The sealing ring The first end of the body is provided with an accommodating groove for accommodating the end of the piston, and the opening of the accommodating groove is provided with a first skirt extending toward the axis of the dental flosser piston sealing ring , the first skirt is used to clip the sealing ring of the toothwash piston on the piston; the end face of the second end of the sealing ring body is provided with a second skirt and a sealing protrusion for forming An annular groove, the cross section of the annular groove is V-shaped, and the outer diameter of the second skirt gradually decreases along the direction approaching the first skirt. In this way, the water in the water storage chamber in the pump body can be prevented from flowing out through the inner wall of the tooth washer piston sealing ring, thereby increasing the sealing performance of the pump body and the tooth washer.

Description

Toothwash piston seal ring, pump body and toothwash

technical field

The invention relates to the technical field of tooth washer, in particular to a tooth washer piston sealing ring, a pump body and a tooth washer.

Background technique

Brushing teeth is the most popular behavior of self-dental health care. The toothwasher is an auxiliary supplementary tool for toothbrushes, which can clean the spaces between teeth and gingival sulcus that are difficult for toothbrushes to clean.

Present portable toothwashing device generally comprises toothwashing machine main frame, and tooth cleaning machine main frame comprises housing and water pump assembly, and water pump assembly is arranged in the housing, and water pump assembly is provided with pump body, driving motor, water outlet and water inlet nozzle, and driving motor It is connected with the transmission of the pump body, and the pump body is connected with the water outlet nozzle and the water inlet nozzle respectively. Therefore, the piston sealing quality of the pump body directly affects the performance of the dental flosser. At present, the outer peripheral surface of the piston is generally equipped with a sealing ring of a standard specification, and the sealing effect is not good, and there is a situation of water leakage on the inner wall of the sealing ring.

Contents of the invention

The main purpose of the present invention is to propose a tooth washer piston sealing ring and a pump body and a tooth washer using the tooth washer piston sealing ring, aiming to solve the problem that the piston sealing effect of the existing tooth washer pump body is not good question.

In order to achieve the above object, a toothwash piston sealing ring proposed by the present invention is arranged on the piston end of the toothwash pump body, and it is characterized in that the toothwash piston sealing ring includes a cylindrical sealing ring body, so The first end of the sealing ring body is provided with an accommodating groove for accommodating the piston, and the accommodating groove is provided with a first skirt extending toward the axial center of the tooth washer piston sealing ring, so The first skirt is used to clip the piston sealing ring of the teeth cleaning device on the piston;

The end surface of the second end of the sealing ring body is provided with an annular groove for forming the formed second skirt and sealing protrusion, a sealing interlayer is formed between the annular groove and the accommodating groove, and the The outer diameter of the second skirt gradually decreases along a direction approaching the first skirt.

Preferably, the sealing ring body, the first skirt, the sealing spacer and the second skirt of the toothwash piston sealing ring are integrally formed.

Preferably, the cross section of the annular groove is V-shaped, and the included angle of the V-shaped opening of the annular groove is 30° to 45°.

Preferably, the first skirt is provided with a chamfer at the first end of the sealing ring body, and the end of the second skirt at the largest outer diameter is a bevel.

In addition, the present invention also provides a pump body, including a casing, a cylinder, a piston, and the sealing ring of the toothwash piston as described in any one of the above, and the second skirt is in interference fit with the inner wall of the cylinder. ;

The cylinder is fixed inside the housing, the piston is slidably arranged inside the cylinder, the end face of the teeth washer piston sealing ring forms a water storage chamber with the inner wall of the cylinder, and the cylinder The barrel is provided with a water passage communicating with the water storage chamber, and the casing is provided with a water inlet and a water outlet communicating with the water passage, and the end of the water passage near the piston is provided with a The sealing bevel matched with the sealing protrusion.

Preferably, the water inlet is provided with a water inlet one-way valve, and the water outlet is provided with a water outlet one-way valve.

Preferably, the outer ring of the water inlet one-way valve and/or the water outlet one-way valve is provided with reinforcing ribs.

Preferably, the water inlet is provided with a water inlet adapter, and the outer ring of the end of the water inlet adapter close to the water inlet is provided with a sealing ring installation groove, and the sealing ring installation groove is provided with the water inlet adapter. Adapter seals with an interference fit at the spout.

Preferably, the water outlet is provided with a water outlet adapter, and the outer ring of the end of the water outlet adapter close to the water outlet is provided with a seal ring installation groove, and the seal ring installation groove is provided with a water outlet adapter. Fitted adapter seals.

In addition, the present invention also provides a dental flosser, comprising the pump body described in any one of the above.

The tooth washer piston sealing ring provided by the present invention, because the sealing interlayer is formed between the annular groove and the accommodating groove, when the tooth washer piston sealing ring is installed on the piston, the tooth washer piston sealing ring is completely covered At the end of the piston, the sealing interlayer prevents the water in the water storage chamber inside the pump body from flowing out through the inner wall of the toothwash piston sealing ring. At the same time, the water in the water storage chamber will not flow out from between the inner wall of the cylinder and the outer wall of the piston sealing ring of the teeth cleaning device by setting the second skirt which is in interference fit with the inner wall of the cylinder. In addition, when the piston runs to the end of the stroke, the sealing protrusion of the piston sealing ring of the tooth washer cooperates with the sealing inclined surface of the water channel of the cylinder, which further increases the sealing performance of the piston sealing ring of the tooth washer. Therefore, the pump body and the tooth washer provided by the present invention use the tooth washer piston sealing ring, while ensuring the sealing performance between the tooth washer piston sealing ring and the inner wall of the cylinder, it also avoids the use of traditional sealing rings. The occurrence of water leakage on the inner wall of the sealing ring improves the sealing performance of the piston sealing ring of the tooth washer and the pump body, and improves the quality of the tooth washer.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative effort.

Fig. 1 is the front view of the sealing ring of piston of the toothwash device provided by an embodiment of the present invention;

Fig. 2 is a sectional view of the piston seal ring of the toothwasher in Fig. 1;

Fig. 3 is a full sectional view of a pump body provided by an embodiment of the present invention.

Explanation of reference numbers:

1. Piston sealing ring of teeth washer; 11. Sealing ring body; 12. Accommodating groove; 13. First skirt; 131. Chamfer; 14. Second skirt; 141. Inclined surface; 15. Sealing protrusion ; 16. Annular groove; 17. Sealed interlayer;

2. Cylinder; 21. Water inlet; 22. Water outlet; 23. Water passage; 231. Sealing slope; 24. Water storage chamber;

3. Piston;

4. Shell;

5. Water inlet one-way valve;

6. Outlet one-way valve;

7. Water inlet adapter;

8. Water outlet adapter;

9. Seal ring installation groove;

10. Adapter sealing ring.

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second" and so on in the embodiments of the present invention, the descriptions of "first", "second" and so on are only for descriptive purposes, and should not be interpreted as indicating or implying Its relative importance or implicitly indicates the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present invention.

As shown in Fig. 1 to Fig. 3, the present invention provides a tooth washer piston sealing ring 1, which is arranged at the end of the piston 3 of the tooth washer pump body, and the tooth washer piston sealing ring 1 comprises a cylindrical sealing ring body 11, The first end of the sealing ring body 11 is provided with an accommodating groove 12 for accommodating the piston 3, and the accommodating groove 12 is provided with a first skirt 13 extending toward the axis of the toothwash piston sealing ring 1. The skirt 13 is used for clipping the piston sealing ring 1 of the teeth cleaning device on the piston 3 . The end surface of the second end of the sealing ring body 11 is provided with an annular groove 16 for forming the second skirt 14 and the sealing protrusion 15, and a sealing interlayer 17 is formed between the annular groove 16 and the accommodation groove 12, The outer diameter of the second skirt 14 gradually decreases along the direction approaching the first skirt 13 .

In one embodiment, as shown in Fig. 1 to Fig. 3, the sealing ring body 11, the first skirt 13, the sealing compartment 17 and the second skirt 14 of the piston sealing ring 1 of the teeth cleaning device are integrally formed, which can avoid The quality problems that occur during split manufacturing improve the sealing performance of the piston sealing ring 1 of the teeth cleaning device.

In one embodiment, as shown in Figures 1 to 3, the cross section of the annular groove 16 is V-shaped, and the included angle of the V-shaped opening of the annular groove 16 is 30° to 45°. It can be understood that when the included angle of the V-shaped opening is too small, the interference between the second skirt 14 and the inner wall of the cylinder 2 is relatively small, and the sealing performance is poor. When the included angle of the V-shaped opening is too large, the piston sealing ring 1 of the teeth cleaning device is not easy to be installed in the cylinder barrel 2 .

In one embodiment, as shown in FIGS. 1 to 3 , the first skirt 13 is provided with an accommodating groove at the first end of the sealing ring body 11 to facilitate the installation of the piston 3 to the piston sealing ring 1 of the teeth cleaning device. The chamfer 131 in 12, the end of the second skirt 14 at the largest outer diameter is a bevel 141, which is convenient for installing the piston sealing ring 1 of the teeth cleaning device into the cylinder 2.

In addition, the present invention also provides a pump body, including a casing 4, a cylinder 2, a piston 3, and a toothwash piston sealing ring 1 as described above, and the second skirt 14 is in interference fit with the inner wall of the cylinder 2. . The cylinder 2 is fixed inside the casing 4, the piston 3 is slidably arranged inside the cylinder 2, the end face of the teeth cleaning device piston sealing ring 1 and the inner wall of the cylinder 2 form a water storage chamber 24, and the cylinder 2 is provided with a water storage chamber. The chamber 24 communicates with the water passage 23, and the casing 4 is provided with a water inlet 21 and a water outlet 22 connected with the water passage 23, and the end of the water passage 23 close to the piston 3 is provided with a sealing slope that cooperates with the sealing protrusion 15 231.

In one embodiment, as shown in FIG. 3 , the water inlet 21 is provided with a water inlet one-way valve 5 , and the water outlet 22 is provided with a water outlet one-way valve 6 . It can be understood that when the piston 3 moved upwards, the space of the water storage chamber 24 became smaller, the water inlet check valve 5 was closed, and the water outlet check valve 6 was opened, and the water in the water storage chamber 24 was just drawn from the mouth of the toothwasher. Spray from the nozzle. When the piston 3 moves down, the space of the water storage chamber 24 becomes larger, the water outlet check valve 6 is closed, the water inlet check valve 5 is opened, and the water storage chamber 24 stores water.

Preferably, the outer ring of the water inlet one-way valve 5 and/or the water outlet one-way valve 6 is provided with reinforcing ribs, which can improve the reliability of the one-way valve seal, and at the same time improve the strength of the one-way valve and increase the bearing capacity of the one-way valve. Pressure, prevent the check valve from deforming and failing under reverse pressure, and prolong its service life.

In one embodiment, as shown in Figure 3, the water inlet 21 is provided with a water inlet adapter 7, and the outer ring of the water inlet adapter 7 near the end of the water inlet 21 is provided with a sealing ring installation groove 9, and the sealing ring installation groove 9 An adapter sealing ring 10 that is interference fit with the water inlet 21 is provided inside.

The water outlet 22 is provided with a water outlet adapter 8, and the outer ring of the water outlet adapter 8 near the end of the water outlet 22 is provided with a seal ring installation groove 9, and the seal ring installation groove 9 is provided with an adapter seal with an interference fit with the water outlet 22. Circle 10.

By setting the water inlet adapter 7 and the water outlet adapter 8, it is convenient to install the pump body and other components.

In addition, the present invention also provides a teeth cleaning device, which includes a housing, a water tank, a power source, a nozzle, and a pump body as described in any one of the above-mentioned embodiments are arranged in the housing, and the water tank communicates with the water inlet of the pump body through a water pipe. , the nozzle is connected with the water outlet of the pump body, and the power source is used to drive the piston in the pump body to reciprocate, so as to pump the water in the water tank from the water inlet to the pump body through the pump body, and then pump the water in the water tank through the water outlet. Spray through nozzle to clean teeth.

The tooth washer piston sealing ring provided by the present invention, because the sealing interlayer is formed between the annular groove and the accommodating groove, when the tooth washer piston sealing ring is installed on the piston, the tooth washer piston sealing ring is completely covered At the end of the piston, the sealing interlayer prevents the water in the water storage chamber inside the pump body from flowing out through the inner wall of the toothwash piston sealing ring. At the same time, the water in the water storage chamber will not flow out from between the inner wall of the cylinder and the outer wall of the piston sealing ring of the teeth cleaning device by setting the second skirt which is in interference fit with the inner wall of the cylinder. In addition, when the piston runs to the end of the stroke, the sealing protrusion of the piston sealing ring of the tooth washer cooperates with the sealing inclined surface of the water channel of the cylinder, which further increases the sealing performance of the piston sealing ring of the tooth washer. Therefore, the pump body and the tooth washer provided by the present invention use the tooth washer piston sealing ring, while ensuring the sealing performance between the tooth washer piston sealing ring and the inner wall of the cylinder, it also avoids the use of traditional sealing rings. The occurrence of water leakage on the inner wall of the sealing ring improves the sealing performance of the piston sealing ring of the tooth washer and the pump body, and improves the quality of the tooth washer.

The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Under the concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly/indirectly used in other All relevant technical fields are included in the patent protection scope of the present invention.

Claims (10)

1. a kind of water toothpick piston packing, is set to the pistons end of the water toothpick pump housing, which is characterized in that the water toothpick is lived Plug sealing ring includes cylindrical seal circle ontology, and the first end of the sealing ring ontology is equipped with for accommodating the accommodating of the piston Groove, the containing groove is interior to be equipped with the first shirt rim extended to the axle center of the water toothpick piston packing, first skirt Side is used to the water toothpick piston packing being connected to the piston；

The end face of the second end of the sealing ring ontology be equipped be used to form at the second shirt rim and the annular groove of seal convexity, Sealed compartment is formed between the annular groove and the containing groove, the outer diameter of second shirt rim is along close to first skirt The direction on side is gradually reduced.

2. water toothpick piston packing as described in claim 1, which is characterized in that the sealing of the water toothpick piston packing Circle ontology, the first shirt rim, sealed compartment and the second shirt rim are one of the forming.

3. water toothpick piston packing as claimed in claim 2, which is characterized in that the section of the annular groove is V-type, institute The angle for stating the V-type opening of annular groove is 30 ° to 45 °.

4. water toothpick piston packing as claimed in claim 2, which is characterized in that first shirt rim is in the sealing ring sheet Chamfering is equipped at the first end of body, second shirt rim is inclined-plane in the end of outer diameter maximum.

5. a kind of pump housing, including shell, cylinder barrel, piston and the water toothpick piston seal as described in Claims 1-4 any one The inner wall of circle, second shirt rim and the cylinder barrel is interference fit；

The cylinder barrel is fixed on the inside of the shell, and the piston is slidably arranged in inside the cylinder barrel, and the water toothpick is lived The inner wall of the end face of plug sealing ring and the cylinder barrel forms water storage chamber, and the cylinder barrel is equipped with the mistake with the water storage chamber Aquaporin, the shell are equipped with the water inlet and water outlet being connected to the water passage, and the water passage is in the work One end of plug is equipped with the sealing inclined-plane coordinated with the seal convexity.

6. the pump housing as claimed in claim 5, which is characterized in that the water inlet is equipped with water feeding one-way valve, the water outlet It is equipped with out water one-way valve.

7. the pump housing as claimed in claim 6, which is characterized in that the water feeding one-way valve and/or the outer ring for going out water one-way valve are set There is reinforcing rib.

8. the pump housing as claimed in claim 5, which is characterized in that the water inlet is equipped with water inlet adapter, the water inlet switching The outer ring of one end of the closely described water inlet of head rest is equipped with sealing ring mounting groove, is equipped with and the water inlet in the sealing ring mounting groove The adapter sealing ring of mouth interference fit.

9. the pump housing as claimed in claim 8, which is characterized in that the water outlet is equipped with water outlet adapter, the water outlet switching The outer ring of one end of the closely described water outlet of head rest is equipped with sealing ring mounting groove, is equipped with and the water outlet in the sealing ring mounting groove The adapter sealing ring of mouth interference fit.

10. a kind of water toothpick, which is characterized in that include the pump housing as described in claim 5-9 any one.