Valve body structure, pump body structure with valve body structure and spray pipe structure with valve body structure
By designing the valve body structure of the spherical valve core and elastic parts, the problem of lax sealing of the diaphragm valve structure in the tooth impulse is solved, and high sealing and durability are achieved. It is suitable for pump bodies and nozzles to prevent tooth cleaning. Reflux of agent improves product design flexibility and performance.
Patent Information
- Application Number
- CN202323582522.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2024-12-06
- Estimated Expiration
- 2033-12-26
AI Technical Summary
The diaphragm valve structure in existing tooth punchers is not tightly sealed and has poor durability, which affects the water outlet pressure and the working performance of the pump.
A valve body structure including a spherical valve core, a support member and an elastic member is designed. The valve core can rotate freely under the action of fluid, and adjusts to the optimal sealing state by adaptively using the elastic force of the elastic member, and the split design of the support member is reduced. The processing accuracy requirements are required, and the sealing and durability are improved.
It achieves good sealing and durability, reduces the failure rate, is suitable for pump body and nozzle structure, prevents the return of the tooth cleaning tablet, and improves the diversified appearance and miniaturized design of the product.
Smart Images
Figure CN222122252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of teeth cleaning devices, in particular to a valve body structure and a pump body structure and a nozzle structure having the valve body structure. Background Art
[0002] An oral irrigator (commonly known as a water flosser) usually includes a shell, a pump, a water tank, a circuit board, a battery, a motor and a nozzle. The battery is used to power the circuit board and the motor. The pump is usually a piston pump. The motor drives the piston in the piston pump to reciprocate through a transmission part, and the water in the water tank is sprayed out from the pointed end of the nozzle in the form of a pulsed water flow, thereby cleaning the teeth, gaps between teeth, gums or tongue.
[0003] The piston pump is composed of a pump cylinder, a piston, an inlet and outlet valves, etc. The motor drives the piston to reciprocate in the pump cylinder. When the piston moves outward relative to the pump cylinder and the working volume of the pump cylinder increases, the inlet valve opens and the outlet valve closes, and water enters the pump cylinder from the water tank under pressure; when the piston moves inward relative to the pump cylinder and the working volume of the pump cylinder decreases, the inlet valve closes and the outlet valve opens, and water is discharged from the pump cylinder under pressure. The reciprocating motion of the piston, combined with the periodic opening and closing of the inlet and outlet valves, can realize the function of the piston pump to suck in and discharge liquid.
[0004] In the prior art, the water inlet and outlet valves in the water flosser are usually diaphragm valve structures. Although the diaphragm valve structure is relatively simple, due to the soft material of the diaphragm, the diaphragm may not seal tightly when the piston pump is working, thereby affecting the water outlet pressure of the piston pump. In addition, after long-term use, the diaphragm is prone to fatigue failure at the bend. Therefore, a valve body structure with good sealing and durability is needed, and the structure can be applied to the pump body structure and the nozzle structure. Utility Model Content
[0005] The technical problem to be solved by the utility model is to provide a valve body structure with good sealing performance and durability, and a pump body structure and a nozzle structure with the valve body structure.
[0006] The technical solution of the utility model to solve the above technical problems is as follows:
[0007] The utility model provides a valve body structure, which includes a valve housing, the valve housing having a first valve housing end and a second valve housing end arranged opposite to the first valve housing end, a valve cavity being arranged between the first valve housing end and the second valve housing end, the first valve housing end being arranged with a first valve hole, the side wall of the valve cavity or the second valve housing end being arranged with a second valve hole, the second valve housing end being arranged with a supporting hole, a valve core, a supporting member and an elastic member sleeved on the supporting member being arranged in the valve cavity, the valve core being spherical and abutting against the first valve hole, the supporting member having a first supporting end abutting against the valve core and a second supporting end passing through the supporting hole, and two ends of the elastic member abutting against the first supporting end and the second valve housing end respectively.
[0008] The utility model provides a pump body structure, which comprises a pump casing, a water inlet pipeline, a water outlet pipeline and the valve body structure as described above, the pump casing is provided with a piston cavity and a pump water inlet and a pump water outlet which are fluidically connected to the piston cavity, the pump casing and / or the water inlet pipeline is provided with a water inlet valve cavity for placing the valve body structure, and the second valve casing end is closer to the pump water inlet than the first valve casing end.
[0009] The utility model also provides another pump body structure, which includes a pump housing, a water inlet pipeline, a water outlet pipeline and the valve body structure as described above, the pump housing is provided with a piston chamber and a pump water inlet and a pump water outlet connected to the piston chamber fluid, the pump housing and / or the water outlet pipeline is provided with a water outlet valve cavity for placing the valve body structure, and the first valve housing end is closer to the pump outlet than the second valve housing end.
[0010] The utility model also provides a nozzle structure, which includes a nozzle body and the valve body structure as described above, the nozzle body having a pipe water inlet end and a pipe water outlet end, a pipe accommodating cavity is provided between the pipe water inlet end and the pipe water outlet end, the valve body structure is arranged in the pipe accommodating cavity, the first valve hole is connected to the fluid of the pipe water inlet end, and the second valve hole is connected to the fluid of the pipe water outlet end.
[0011] The utility model has the following beneficial effects:
[0012] The valve body structure of the utility model is provided with a valve core, a support member and an elastic member sleeved on the support member in the valve cavity. When the valve core is away from the first valve hole, the first valve hole and the second valve hole are in a fluid communication state, and the valve body is in an open state; when the valve core is pressed against the first valve hole, the first valve hole and the second valve hole are in a non-communication state, and the valve body is in a closed state. When the valve core reciprocates between the position away from and pressed against the first valve hole, the support member abutting against the valve core can reciprocate synchronously with the valve core, and the elastic member sleeved on the support member can provide the force for the valve core to press against the first valve hole.
[0013] The valve core is spherical, and under the action of the fluid, the valve core can rotate freely, which is beneficial to the flow of the fluid; when the valve core is pressed against the first valve hole under the elastic force of the elastic member, the spherical valve core can use its own rotation characteristics to adaptively adjust to the optimal sealing state. The first support end of the support member is in contact with the valve core, and the second support end passes through the support hole. The support hole can provide support and guidance for the reciprocating motion of the support member, ensuring the stability of the reciprocating motion of the support member and the valve core. At the same time, due to the split design of the support member and the valve core, the support member slightly deviates from the axis when it moves or the support member produces a slight deformation, which will not have a substantial impact on the sealing effect of the valve core. The processing and assembly precision requirements for the support member and the support hole are relatively low, and the cost is low, the sealing is high, the durability is strong, and the failure rate is low.
[0014] The pump body structure of the utility model is provided with the valve body structure as described above in the water inlet valve cavity or the water outlet valve cavity. The valve body structure as an integral assembly unit can be conveniently connected and installed with the pump body and the water inlet and outlet pipes; and the valve body structure can be arranged at any position of the water inlet pipe and / or the water outlet pipe according to the space inside the oral irrigator shell, so that the internal space of the oral irrigator can be fully and flexibly utilized, which is conducive to the diversification and miniaturization of the product appearance.
[0015] The nozzle body of the nozzle structure of the utility model is provided with a tube accommodating cavity, and the valve body structure as described above is arranged in the tube accommodating cavity. The valve body structure as an integral assembly unit can be conveniently connected and installed with the nozzle body, and can achieve the effects of backflow prevention and pressurization. Especially when a soluble tooth cleaning tablet is arranged in the nozzle, it can effectively prevent the dissolved small granular reagent from flowing back into the body of the oral irrigator. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the valve body structure of the utility model;
[0018] Figure 2 It is a schematic diagram of the overall structure of the first embodiment of the valve body structure of the utility model from another perspective;
[0019] Figure 3 This is a schematic diagram of the exploded structure of the first embodiment of the valve body structure of the utility model;
[0020] Figure 4 This is a schematic diagram of the exploded structure of the first embodiment of the valve body structure of the utility model from another perspective;
[0021] Figure 5 This is a schematic cross-sectional view of the first embodiment of the valve body structure of the utility model;
[0022] Figure 6 It is a cutaway and exploded structural schematic diagram of the first embodiment of the valve body structure of the utility model;
[0023] Figure 7 This is a schematic diagram of the overall structure of the second embodiment of the valve body structure of the utility model;
[0024] Figure 8 This is a schematic diagram of the exploded structure of the second embodiment of the valve body structure of the utility model;
[0025] Fig. 9 This is a schematic cross-sectional view of the second embodiment of the valve body structure of the utility model;
[0026] Fig.10 It is a cutaway and exploded structural schematic diagram of the second embodiment of the valve body structure of the utility model;
[0027] Fig.11 This is a schematic diagram of the overall structure of the third embodiment of the valve body structure of the utility model;
[0028] Fig.12 This is a schematic diagram of the exploded structure of the third embodiment of the valve body structure of the utility model;
[0029] Fig.13 This is a schematic cross-sectional view of the third embodiment of the valve body structure of the utility model;
[0030] Fig.14 It is a cutaway and exploded structural schematic diagram of the third embodiment of the valve body structure of the utility model;
[0031] Fig.15 This is a schematic diagram of the overall structure of the first embodiment of the pump structure of the utility model;
[0032] Fig.16 This is a schematic diagram of the exploded structure of the first embodiment of the pump structure of the utility model;
[0033] Fig.17 This is a schematic diagram of the exploded structure of the first embodiment of the pump structure of the utility model from another angle;
[0034] Fig.18 This is a schematic cross-sectional view of the first embodiment of the pump structure of the utility model;
[0035] Fig.19 This is a schematic diagram of the overall structure of the second embodiment of the pump structure of the utility model;
[0036] Fig. 20 This is a schematic diagram of the exploded structure of the second embodiment of the pump structure of the utility model;
[0037] Fig.21 This is a schematic cross-sectional view of the second embodiment of the pump structure of the utility model;
[0038] Fig. 22 It is a cutaway and exploded structural schematic diagram of the second embodiment of the pump body structure of the utility model;
[0039] Fig.23 It is a schematic diagram of the overall structure of the nozzle structure of the utility model;
[0040] Fig.24 It is a schematic diagram of the exploded structure of the nozzle structure of the utility model;
[0041] Fig.25 This is a schematic diagram of the exploded structure of the nozzle structure of the utility model from another angle. DETAILED DESCRIPTION
[0042] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0043] Figures 1 to 6 The specific structure of the first embodiment of the valve body structure of the utility model is shown.
[0044] like Figures 1 to 6 As shown, the first embodiment of the valve body structure of the utility model includes a valve housing 10, the valve housing 10 has a first valve housing end 101 and a second valve housing end 102 arranged opposite to the first valve housing end 101, a valve cavity 103 is arranged between the first valve housing end 101 and the second valve housing end 102, the first valve housing end 101 is provided with a first valve hole 111, the side wall of the valve cavity 103 or the second valve housing end 102 is provided with a second valve hole 112, the second valve housing end 102 is provided with a support hole 113, a valve core 12, a support member 13 and an elastic member 14 sleeved on the support member 13 are arranged in the valve cavity 103, the valve core 12 is spherical and is arranged between the first valve hole 111 and the support member 13, the support member 13 has a first support end 131 abutting against the valve core 12 and a second support end 132 passing through the support hole 113, and two ends of the elastic member 14 abut against the first support end 131 and the second valve housing end 102 respectively.
[0045] The valve body structure of the utility model has a valve core 12, a support member 13 and an elastic member 14 sleeved on the support member 13 in the valve cavity 103. When the valve core 12 is away from the first valve hole 111, the first valve hole 111 and the second valve hole 112 are in a fluid communication state, and the valve body is in an open state; when the valve core 12 is pressed against the first valve hole 111, the first valve hole 111 and the second valve hole 112 are in a non-communication state, and the valve body is in a closed state. When the valve core 12 reciprocates between the position away from and pressed against the first valve hole 111, the support member 13 abutting against the valve core 12 can reciprocate synchronously with the valve core 12, and the elastic member 14 sleeved on the support member 13 can provide the force for the valve core 12 to press against the first valve hole 111.
[0046] The second valve hole 112 can be set at the second valve housing end 102 as in the present embodiment, or can be set at the side wall of the valve cavity 103. The position setting of the second valve hole 112 needs to meet the following conditions: when the valve core 12 abuts against the first valve hole 111, the first valve hole 111 and the second valve hole 112 can be in a non-fluid communication state, thereby realizing that the pipelines at both ends of the valve body structure are in a non-communication state; when the valve core 12 is separated from the first valve hole 111, the first valve hole 111 and the second valve hole 112 can be in a fluid communication state, thereby realizing that the pipelines at both ends of the valve body structure are in a communication state.
[0047] The valve core 12 is spherical. Under the action of the fluid, the spherical valve core 12 can rotate freely, which is beneficial to the flow of the fluid. When the valve core 12 is pressed against the first valve hole 111 under the elastic force of the elastic member 14, the spherical valve core 12 can use its own rotation characteristics to adaptively adjust to the best sealing state. The first support end 131 of the support member 13 is in contact with the valve core 12, and the second support end 132 passes through the support hole 113. The support hole 113 can provide support and guidance for the reciprocating motion of the support member 13, ensuring the stability of the reciprocating motion of the support member 13 and the valve core 12. At the same time, due to the split design of the support member 13 and the valve core 12, the support member 13 slightly deviates from the axis when it moves or the support member 13 produces a small deformation, which will not have a substantial impact on the sealing effect of the valve core 12. The valve body structure of the utility model has low requirements for the processing and assembly accuracy of the support member 13 and the support hole 113, low cost, high sealing, strong durability and low failure rate.
[0048] Preferably, the inner wall of the first valve housing end 101 is provided with a first spherical surface 105 around the first valve hole 111, the valve core 12 is placed between the first spherical surface 105 and the support member 13, and the curvature radius of the first spherical surface 105 is the same as the curvature radius of the valve core 12. The first spherical surface 105 and the valve core 12 are in curved contact, and the spherical valve core 12 can fit tightly with the first spherical surface 105 with the same curvature radius to achieve a better sealing effect.
[0049] Preferably, the first supporting end 131 of the supporting member 13 is provided with a second spherical surface 133, the second spherical surface 133 abuts against the valve core 12, and the curvature radius of the second spherical surface 133 is the same as the curvature radius of the valve core 12. The second spherical surface 133 and the valve core 12 are in curved contact, and the spherical valve core 12 can fit with the second spherical surface 133 with the same curvature radius, so that the supporting member 13 can stably move synchronously with the valve core 12 and the valve core 12 can rotate freely relative to the supporting member 13, so that the valve core 12 can be adaptively adjusted to achieve a better sealing effect.
[0050] In this preferred embodiment, the first support end 131 and the second support end 132 are both cylindrical, the diameter of the first support end 131 of the support member 13 is larger than the diameter of the second support end 132, and the elastic member 14 is a cylindrical helical spring, the inner diameter of the spring is larger than the diameter of the second support end 132 and smaller than the diameter of the first support end 131. In different embodiments, the first support end 131 can be an irregular shape, which can meet the requirement of limiting one end of the elastic member 14.
[0051] In this embodiment, the diameter of the first support end 131 of the support member 13 is less than or equal to the diameter of the valve core 12. On the premise of ensuring the stability of the synchronous movement of the support member 13 and the valve core 12, the diameter of the first support end 131 is less than or equal to the diameter of the valve core 12, which can effectively reduce the influence of the support member 13 on the resistance of the liquid flow.
[0052] Preferably, the support hole 113 is located in the middle of the second valve housing end 102, and the second valve hole 112 is arranged around the support hole 113. The second valve housing end 102 is provided with a first water outlet wall 106, a second water outlet wall 107 and a connecting wall 108, and the connecting wall 108 is arranged between the first water outlet wall 106 and the second water outlet wall 107. The first water outlet wall 106 surrounds the support hole 113, and the first water outlet wall 106, the second water outlet wall 107 and the connecting wall 108 surround the second valve hole 112. Regarding the understanding of "the support hole 113 is located in the middle of the second valve housing end 102", in this embodiment, the second valve housing end 102 is circular, and the center of the support hole 113 substantially coincides with the center of the second valve housing end 102, so that the support hole 113 is arranged in the middle of the second valve housing end 102.
[0053] In this preferred embodiment, the valve housing 10 includes a first housing 151 and a second housing 152 that are interconnected to form a valve chamber 103. The connection method between the first housing 151 and the second housing 152 includes but is not limited to bonding, ultrasonic welding, vibration welding, laser welding, press fit connection, etc. The first housing 151 is provided with a first valve housing end 101, and the second housing 152 is provided with a second valve housing end 102.
[0054] Figures 7 to 10 The specific structure of the second embodiment of the valve body structure of the present utility model is shown.
[0055] like Figures 7 to 10As shown, the second embodiment of the valve body structure of the utility model includes a valve housing 20, and the valve housing 20 includes a third housing 251 and a fourth housing 252. The third housing 251 has a first valve housing end 201, and the fourth housing 252 has a second valve housing end 202. A valve cavity 203 is formed between the first valve housing end 201 and the second valve housing end 202. The first valve housing end 201 is provided with a first valve hole 211, and the second valve housing end 202 is provided with a second valve hole 212. The second valve housing end 202 is provided with a support hole 213. A valve core 22, a support member 23 and an elastic member 24 sleeved on the support member 23 are provided in the valve cavity 203. The valve core 22 is spherical and is placed between the first valve hole 211 and the support member 23. One end of the support member 23 abuts against the valve core 22, and the other end passes through the support hole 213.
[0056] Figures 11 to 14 The specific structure of the third embodiment of the valve body structure of the present utility model is shown.
[0057] like Figures 11 to 14 As shown, the third embodiment of the valve body structure of the utility model includes a valve housing 30, and the valve housing 30 includes a fifth housing 351 and a sixth housing 352. The fifth housing 351 has a first valve housing end 301, and the sixth housing 352 has a second valve housing end 302. A valve cavity 303 is formed between the first valve housing end 301 and the second valve housing end 302. The first valve housing end 301 is provided with a first valve hole 311, and the second valve housing end 302 is provided with a second valve hole 312. The second valve housing end 302 is provided with a supporting hole 313. A valve core 32, a supporting member 33 and an elastic member 34 sleeved on the supporting member 33 are provided in the valve cavity 303. The valve core 32 is spherical and is placed between the first valve hole 311 and the supporting member 33. One end of the supporting member 33 abuts against the valve core 32, and the other end passes through the supporting hole 313.
[0058] It should be noted that the understanding of the "valve housing" should not be limited to the specific structures of the above-mentioned embodiments. In the pipeline through which the oral irrigator fluid flows (including any pipeline position between the water suction end in the liquid storage tank and the water spraying end of the nozzle), the housing structure having the first valve housing end, the second valve housing end and the valve cavity can be understood as the "valve housing" described in the utility model, including but not limited to the following situations:
[0059] First, the "valve housing" can be such as Figures 1 to 6 The independent housing structure shown in the figure, the valve housing 10 is formed by connecting the first housing 151 and the second housing 152, and has a first valve housing end 101, a second valve housing end 102 and a valve cavity 103. In different embodiments, the valve housing can be formed by connecting one or more independent components, and is not limited to the two in the embodiment;
[0060] Second, the "valve housing" can be as follows Figures 7 to 10The third housing 251 and the fourth housing 252 are shown in combination. The third housing 251 is provided with a first valve housing end 201, which is actually a part of the pump housing. The fourth housing 252 is provided with a second valve housing end 202. The third housing 251 and the fourth housing 252 enclose a valve cavity 203.
[0061] Third; the "valve housing" can be as follows Figures 11 to 14 The fifth shell 351 and the sixth shell 352 are shown as a combination, the fifth shell 351 is provided with a first valve shell end 301, which is actually a part of the fluid pipeline, and the sixth shell 352 is provided with a second valve shell end 302. The fifth shell 351 and the sixth shell 352 enclose a valve cavity 303.
[0062] Figures 15 to 18 The specific structure of the first embodiment of the pump body structure of the utility model is shown.
[0063] like Figures 15 to 18 As shown, the first embodiment of the pump structure of the utility model includes a pump housing 50, a water inlet pipe 51, a water outlet pipe ( Figures 15 to 18 Not shown, can be combined Figures 19 to 22 The pump housing 50 is provided with a piston chamber 501 and a pump water inlet 502 and a pump water outlet 503 which are fluidically connected to the piston chamber 501, and the pump housing 50 and / or the water inlet pipeline 51 are provided with an inlet valve chamber 511 for placing the valve body structure 40, and the second valve housing end 102 is closer to the pump water inlet 502 than the first valve housing end 101.
[0064] The understanding of "the pump housing 50 and / or the water inlet pipe 51 are provided with a water inlet valve chamber 511 for placing the valve body structure 40" means that the water inlet valve chamber can be separately arranged in the pump housing, or separately arranged in the water inlet pipe, or formed by the pump housing and the water inlet pipe together (as shown in the structure of this embodiment).
[0065] Regarding the understanding that “the second valve housing end 102 is closer to the pump water inlet 502 than the first valve housing end 101”, specifically in this embodiment, it means that the second valve hole 112 of the second valve housing end 102 is directly connected to the pump water inlet 502 fluid, and before entering the piston chamber 501, the fluid flows through the first valve hole 111, the second valve hole 112 and the pump water inlet 502 in sequence.
[0066] In order to ensure good sealing performance of the pump body structure, preferably, a water inlet shoulder 114 is provided on the side of the valve housing 10 close to the first valve housing end 101, and the water inlet shoulder 114 is sleeved with a water inlet sealing ring 161, and the water inlet sealing ring 161 abuts against the inner wall of the water inlet valve chamber 511; a water outlet shoulder 115 is provided on the side of the valve housing 10 close to the second valve housing end 102, and the water outlet shoulder 115 is sleeved with a water outlet sealing ring 162, and the water outlet sealing ring 162 abuts against the inner wall of the water inlet valve chamber 511.
[0067] Figures 19 to 22 The specific structure of the second embodiment of the pump body structure of the present utility model is shown.
[0068] In the first embodiment of the pump structure, the valve structure 40 is disposed on the water inlet side of the pump. Of course, the valve structure 40 can also be disposed on the water outlet side of the pump, which is the second embodiment of the pump structure. Figures 19 to 22 As shown, the second embodiment of the pump structure of the utility model includes a pump housing 50, a water inlet pipe ( Figures 19 to 22 Not shown, can be combined Figures 15 to 18 For understanding, but not limited to the structures shown in the aforementioned drawings), the water outlet pipeline 52 and the valve body structure 40 as described above, the pump housing 50 is provided with a piston chamber 501 and a pump water inlet 502 and a pump water outlet 503 which are fluidically connected to the piston chamber 501, the pump housing 50 and / or the water outlet pipeline 52 are provided with a water outlet valve chamber 521 for placing the valve body structure 40, and the first valve housing end 101 is closer to the pump water outlet 503 than the second valve housing end 102.
[0069] Similarly, the understanding of "the pump housing 50 and / or the water outlet pipe 52 is provided with a water outlet valve chamber 521 for placing the valve body structure 40" means that the water valve chamber can be separately arranged in the pump housing (as shown in the structure of this embodiment), or separately arranged in the water outlet pipe, or formed by the pump housing and the water outlet pipe.
[0070] Regarding the understanding that “the first valve housing end 101 is closer to the pump outlet 503 than the second valve housing end 102”, specifically in this embodiment, it means that the first valve hole 111 of the first valve housing end 101 is directly connected to the pump outlet 503 fluid, and after flowing out of the piston chamber 501, the fluid flows through the pump outlet 503, the first valve hole 111 and the second valve hole 112 in sequence.
[0071] Also, in order to ensure good sealing performance of the pump body structure, preferably, a water inlet shoulder 114 is provided on the side of the valve housing 10 close to the first valve housing end 101, and the water inlet shoulder 114 is sleeved with a water inlet sealing ring 161, which abuts against the inner wall of the water outlet valve cavity 521; a water outlet shoulder 115 is provided on the side of the valve housing 10 close to the second valve housing end 102, and the water outlet shoulder 115 is sleeved with a water outlet sealing ring 162, which abuts against the inner wall of the water outlet valve cavity 521.
[0072] The pump body structure of the utility model is provided with the valve body structure as described above in the water inlet valve cavity or the water outlet valve cavity. The valve body structure as an integral assembly unit can be conveniently connected and installed with the pump body and the water inlet and outlet pipes; and the valve body structure can be arranged at any position of the water inlet pipe and / or the water outlet pipe (including any position between the water suction end in the liquid storage tank and the water spraying end of the nozzle) according to the space inside the oral irrigator shell, so that the internal space of the oral irrigator can be fully and flexibly utilized, which is conducive to the diversification and miniaturization of the product appearance.
[0073] Figure 23 to Figure 25 The specific structure of the nozzle structure of the utility model is shown.
[0074] like Figure 23 to Figure 25 As shown, the nozzle structure of the utility model includes a nozzle body 60 and the valve body structure 40 as described above, the nozzle body 60 has a pipe water inlet end 601, a pipe water outlet end 602 and a pipe accommodating cavity 603 arranged between the pipe water inlet end 601 and the pipe water outlet end 602, the valve body structure 40 is arranged in the pipe accommodating cavity 603, the first valve hole 111 is fluidically connected to the pipe water inlet end 601, and the second valve hole 112 is fluidically connected to the pipe water outlet end 602.
[0075] Regarding the understanding that “the first valve hole 111 is fluidically connected to the pipe water inlet end 601, and the second valve hole 112 is fluidically connected to the pipe water outlet end 602”, specifically in this embodiment, means that after the fluid enters the nozzle from the pipe water inlet end 601, it flows through the first valve hole 111 and the second valve hole 112 in sequence, and is finally ejected through the pipe water outlet end 602.
[0076] The nozzle body 60 of the nozzle structure of the utility model is provided with a tube accommodating chamber 603, and the valve body structure 40 as described above is arranged in the tube accommodating chamber 603. The valve body structure 40 as an integral assembly unit can be conveniently connected and installed with the nozzle body 60 to achieve the effects of backflow prevention and pressurization, especially when a soluble tooth cleaning tablet is arranged in the nozzle (the tablet is placed in the tablet chamber 604), it can effectively prevent the dissolved small granular reagent from flowing back into the body of the oral irrigator.
[0077] In the embodiments of the present invention, "fluid communication" includes direct communication between pipelines and / or components, and includes indirect communication between two pipelines and / or components via other pipelines and / or components.
[0078] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. Valve body structure, characterized by: The invention comprises a valve housing, wherein the valve housing has a first valve housing end and a second valve housing end arranged opposite to the first valve housing end, a valve cavity is arranged between the first valve housing end and the second valve housing end, the first valve housing end is arranged with a first valve hole, the side wall of the valve cavity or the second valve housing end is arranged with a second valve hole, the second valve housing end is arranged with a support hole, a valve core, a support member and an elastic member sleeved on the support member are arranged in the valve cavity, the valve core is spherical and arranged between the first valve hole and the support member, the support member has a first support end abutting against the valve core and a second support end passing through the support hole, and two ends of the elastic member abut against the first support end and the second valve housing end respectively.
2. The valve body structure according to claim 1, characterized in that: The inner wall of the first valve housing end is provided with a first spherical surface surrounding the first valve hole, and the valve core is placed between the first spherical surface and the support member.
3. The valve body structure according to claim 2, characterized in that: The curvature radius of the first spherical surface is the same as the curvature radius of the valve core.
4. The valve body structure according to claim 1, characterized in that: The first supporting end is provided with a second spherical surface, and the second spherical surface abuts against the valve core.
5. The valve body structure according to claim 4, characterized in that: The curvature radius of the second spherical surface is the same as the curvature radius of the valve core.
6. The valve body structure according to any one of claims 1 to 5, characterized in that: The diameter of the first supporting end is greater than the diameter of the second supporting end.
7. The valve body structure according to any one of claims 1 to 5, characterized in that: The diameter of the first supporting end is smaller than or equal to the diameter of the valve core.
8. The valve body structure according to any one of claims 1 to 5, characterized in that: The supporting hole is located in the middle of the second valve housing end, and the second valve hole is arranged around the supporting hole.
9. The valve body structure according to any one of claims 1 to 5, characterized in that: The second valve housing end is provided with a first water outlet wall, a second water outlet wall and a connecting wall, the connecting wall is arranged between the first water outlet wall and the second water outlet wall, the first water outlet wall surrounds the supporting hole, and the first water outlet wall, the second water outlet wall and the connecting wall surround the second valve hole.
10. The valve body structure according to any one of claims 1 to 5, characterized in that: The valve housing comprises a first housing and a second housing which are connected to each other to form the valve cavity, the first housing is provided with the first valve housing end, and the second housing is provided with the second valve housing end.
11. A pump structure, comprising a pump housing, a water inlet pipeline and a water outlet pipeline, wherein the pump housing is provided with a piston chamber and a pump water inlet and a pump water outlet in fluid communication with the piston chamber, characterized in that: It also includes the valve body structure as described in any one of claims 1 to 10, the pump housing and / or the water inlet pipeline is provided with a water inlet valve cavity for accommodating the valve body structure, and the second valve housing end is closer to the pump water inlet than the first valve housing end.
12. The pump structure according to claim 11, characterized in that: A water inlet shaft shoulder is provided on one side of the valve housing close to the first valve housing end, and a water inlet shaft shoulder sleeve is provided with a water inlet sealing ring, and the water inlet sealing ring abuts against the inner wall of the water inlet valve cavity.
13. The pump structure according to claim 11, characterized in that: A water outlet shaft shoulder is provided on one side of the valve housing close to the second valve housing end, and a water outlet shaft shoulder sleeve is provided with a water outlet sealing ring, and the water outlet sealing ring abuts against the inner wall of the water inlet valve cavity.
14. A pump structure, comprising a pump housing, a water inlet pipe and a water outlet pipe, wherein the pump housing is provided with a piston chamber and a pump water inlet and a pump water outlet in fluid communication with the piston chamber, characterized in that: It also includes the valve body structure as described in any one of claims 1 to 10, the pump housing and / or the water outlet pipe is provided with a water outlet valve cavity for placing the valve body structure, and the first valve housing end is closer to the pump outlet than the second valve housing end.
15. The pump structure according to claim 14, characterized in that: A water inlet shaft shoulder is provided on one side of the valve housing close to the first valve housing end, and a water inlet shaft shoulder sleeve is provided with a water inlet sealing ring, and the water inlet sealing ring abuts against the inner wall of the water outlet valve cavity.
16. The pump structure according to claim 14, characterized in that: A water outlet shaft shoulder is provided on one side of the valve housing close to the second valve housing end, and a water outlet shaft shoulder sleeve is provided with a water outlet sealing ring, and the water outlet sealing ring abuts against the inner wall of the water outlet valve cavity.
17. A nozzle structure, comprising a nozzle body, wherein the nozzle body has a water inlet end and a water outlet end, characterized in that: It also includes the valve body structure as described in any one of claims 1 to 10, a tube accommodating cavity is provided between the tube water inlet end and the tube water outlet end, the valve body structure is arranged in the tube accommodating cavity, the first valve hole is fluidically connected to the tube water inlet end, and the second valve hole is fluidically connected to the tube water outlet end.