CN218177441U - Piston pump structure of tooth flushing device and tooth flushing device - Google Patents
Piston pump structure of tooth flushing device and tooth flushing device Download PDFInfo
- Publication number
- CN218177441U CN218177441U CN202222052414.1U CN202222052414U CN218177441U CN 218177441 U CN218177441 U CN 218177441U CN 202222052414 U CN202222052414 U CN 202222052414U CN 218177441 U CN218177441 U CN 218177441U
- Authority
- CN
- China
- Prior art keywords
- chamber
- piston
- water storage
- storage pipe
- pump body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Reciprocating Pumps (AREA)
Abstract
The application provides a towards tooth ware's piston pump structure and towards tooth ware. The piston pump structure includes: the pump body, the piston assembly and the first one-way valve; the piston assembly is arranged in the pump body in a sliding mode; the pump body comprises a first chamber and a second chamber which are communicated with each other; the piston assembly comprises a piston and a water storage pipe; the end of the piston is arranged in the first cavity in a sliding mode; one end of the water storage pipe is connected with the end part of the piston and is arranged in the first cavity, and the other end of the water storage pipe extends into the second cavity; the first chamber is provided with a water inlet; the second chamber is provided with a water outlet; the first one-way valve is arranged in the second chamber and is abutted to the end part of the water storage pipe extending to the second chamber. This application has the function of leading, saving and buffering liquid, is favorable to promoting the stability of the inside rivers of pump body is avoided the piston pump structure damages because of local pressure is too big.
Description
Technical Field
The application relates to the technical field of tooth flushing devices, in particular to a piston pump structure of a tooth flushing device and the tooth flushing device.
Background
The tooth flusher is one kind of oral cavity cleaning product, and includes mainly piston pump, water storing tank and nozzle.
The design of one-way valve block is generally adopted to tooth ware pump body delivery port on the present market, sets up the one-way valve block that the diameter is greater than the delivery port bore outside the delivery port promptly, and when the piston moved towards the open end by the bottom in pump body chamber, one-way valve block butt in delivery port department, when the piston moved towards the bottom by the open end in pump body chamber, one-way valve block was opened, can guarantee the liquid in the pump body intracavity from this towards the outer one-way flow of pump body chamber.
However, the existing pump body structure of the tooth flushing device easily causes unstable water flow in the pump body, so that the local pressure in the pump body is too high, and the pump body is easily damaged.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present application is proposed to provide a piston pump structure of a dental irrigator and a dental irrigator which overcome or at least partially solve the problems, comprising:
a piston pump structure of a tooth irrigator, comprising: the pump body, the piston assembly and the first one-way valve;
the piston assembly is arranged in the pump body in a sliding mode; wherein the pump body comprises a first chamber and a second chamber which are communicated with each other; the piston assembly comprises a piston and a water storage pipe; the end of the piston is arranged in the first cavity in a sliding mode; one end of the water storage pipe is connected with the end part of the piston and is arranged in the first cavity, and the other end of the water storage pipe extends into the second cavity;
the first chamber is provided with a water inlet; the second chamber is provided with a water outlet; the first one-way valve is arranged in the second chamber and is abutted against the end part of the water storage pipe extending to the second chamber;
when the pump body is in a water absorption state, the water storage pipe moves in a direction away from the second chamber under the driving of the piston, and external liquid flows into the first chamber through the water inlet and flows into the second chamber through the water storage pipe;
when the pump body is in a drainage state, the water storage pipe is driven by the piston to move towards the direction close to the second cavity, and liquid in the first cavity flows into the second cavity through the water storage pipe and flows out from the water outlet.
Preferably, the piston assembly further comprises a connecting pipe; the connecting pipe is arranged in the first cavity; one end of the connecting pipe is connected with the end part of the water storage pipe arranged in the first cavity, and the other end of the connecting pipe is connected with the end part of the piston; and water flow through holes are formed in the side edges of the connecting pipes.
Preferably, the pump body further comprises a guide ring; the guide ring is disposed between the first chamber and the second chamber; the water storage pipe is arranged inside the guide ring in a sliding mode.
Preferably, the pump body further comprises a first seal ring; the first seal ring is arranged between the first chamber and the second chamber; the water storage pipe is arranged inside the first sealing ring in a sliding mode.
Preferably, the first one-way valve comprises a first spring and a first sealing plug connected to the end of the first spring; the end of the first spring, which is far away from the first sealing plug, is fixed in the second chamber; the first sealing plug abuts against the end portion of the water storage pipe extending to the second chamber.
Preferably, the device further comprises a second one-way valve; the second one-way valve comprises a second spring and a second sealing plug connected to the end of the second spring; the end part of the second spring, which is far away from the second sealing plug, is fixed on the side edge of the water outlet; the second sealing plug abuts against the water outlet.
Preferably, the pump body further comprises a mounting ring; the assembly ring is sleeved outside the joint of the first chamber and the second chamber.
Preferably, the pump body further comprises a second sealing ring and a third sealing ring; the second sealing ring is arranged at the joint of the assembling ring and the first chamber; the third sealing ring is arranged at the joint of the assembling ring and the second chamber.
Preferably, the piston assembly further comprises a rotating motor, a motor gear, a transmission gear, an eccentric wheel and a connecting rod; the motor gear is fixed on a rotating shaft of the rotating motor; the transmission gear is meshed with the motor gear; the eccentric wheel is arranged on the end face of the transmission gear and is not coaxially arranged with the transmission gear; one end of the connecting rod is sleeved outside the eccentric wheel, and the other end of the connecting rod is connected with the end part of the piston.
A dental irrigator comprising a housing, a nozzle, a water reservoir, a power supply assembly and a piston pump arrangement as claimed in any one of the preceding claims; the power supply assembly and the piston pump structure are respectively mounted inside the housing; the power supply assembly is electrically connected with the piston assembly; the nozzle and the water tank are respectively connected to the surface of the shell; the water outlet is connected with the nozzle; the water inlet is connected with the water tank.
The application has the following advantages:
in the embodiment of the application, the first check valve is arranged between the pump body and the piston assembly; the piston assembly is arranged in the pump body in a sliding mode; wherein the pump body comprises a first chamber and a second chamber which are communicated with each other; the piston assembly comprises a piston and a water storage pipe; the end of the piston is arranged in the first cavity in a sliding mode; one end of the water storage pipe is connected with the end part of the piston and is arranged in the first cavity, and the other end of the water storage pipe extends into the second cavity; the first chamber is provided with a water inlet; the second chamber is provided with a water outlet; the first one-way valve is arranged in the second chamber and is abutted against the end part of the water storage pipe extending to the second chamber; when the pump body is in a water absorption state, the water storage pipe moves in a direction away from the second chamber under the driving of the piston, and external liquid flows into the first chamber through the water inlet and flows into the second chamber through the water storage pipe; when the pump body is in the drainage state, the standpipe is in the drive of piston is close to down the direction motion of second cavity, the inside liquid of first cavity passes through the standpipe flows in the second cavity, and passes through the delivery port outwards flows, the pump body the standpipe with first check valve mutually supports, has the function of leading, storage and buffering to liquid, is favorable to promoting the stability of the inside rivers of the pump body avoids the piston pump structure appears because of the too big condition of damaging of local pressure.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive labor.
FIG. 1 is a schematic structural diagram illustrating a piston pump structure of a dental irrigator according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a piston pump structure of a tooth flusher provided by an embodiment of the application in a water sucking state;
fig. 3 is a schematic structural diagram of a piston pump structure of a tooth flusher provided by an embodiment of the present application in a drainage state.
The reference numbers in the drawings attached hereto are as follows:
100. a pump body; 110. a first chamber; 111. a water inlet; 120. a second chamber; 121. a water outlet; 130. a guide ring; 140. a first seal ring; 150. assembling a ring; 160. a second seal ring; 170. a third seal ring; 200. a piston assembly; 210. a piston; 220. a water storage pipe; 230. a connecting pipe; 240. rotating the motor; 250. a motor gear; 260. a transmission gear; 270. an eccentric wheel; 280. a connecting rod; 300. a first check valve; 400. a second one-way valve.
Detailed Description
In order to make the objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 3, a piston pump structure of a tooth irrigator provided by an embodiment of the application is shown, which comprises: the pump body 100, the piston assembly 200, and the first check valve 300;
the piston assembly 200 is slidably disposed in the pump body 100; wherein the pump body 100 includes a first chamber 110 and a second chamber 120 communicating with each other; the piston assembly 200 includes a piston 210 and a reservoir 220; the end of the piston 210 is slidably disposed in the first chamber 110; one end of the water storage tube 220 is connected to the end of the piston 210 and is disposed in the first chamber 110, and the other end of the water storage tube 220 extends into the second chamber 120;
the first chamber 110 is provided with a water inlet 111; the second chamber 120 is provided with a water outlet 121; the first check valve 300 is disposed in the second chamber 120 and abuts against an end of the water storage pipe 220 extending to the second chamber 120;
when the pump body 100 is in the water absorption state, the water storage tube 220 is driven by the piston 210 to move in a direction away from the second chamber 120, and external liquid flows into the first chamber 110 through the water inlet 111 and flows into the second chamber 120 through the water storage tube 220;
when the pump body 100 is in a drainage state, the water storage tube 220 is driven by the piston 210 to move towards a direction close to the second chamber 120, and the liquid in the first chamber 110 flows into the second chamber 120 through the water storage tube 220 and flows out through the water outlet 121.
In the embodiment of the present application, the first check valve 300 is connected to the pump body 100 through the piston assembly 200; the piston assembly 200 is slidably disposed in the pump body 100; wherein the pump body 100 includes a first chamber 110 and a second chamber 120 communicating with each other; the piston assembly 200 includes a piston 210 and a reservoir 220; the end of the piston 210 is slidably disposed in the first chamber 110; one end of the water storage tube 220 is connected to the end of the piston 210 and is disposed in the first chamber 110, and the other end of the water storage tube 220 extends into the second chamber 120; the first chamber 110 is provided with a water inlet 111; the second chamber 120 is provided with a water outlet 121; the first check valve 300 is disposed in the second chamber 120 and abuts against an end of the water storage pipe 220 extending to the second chamber 120; when the pump body 100 is in the water absorption state, the water storage tube 220 is driven by the piston 210 to move in a direction away from the second chamber 120, and external liquid flows into the first chamber 110 through the water inlet 111 and flows into the second chamber 120 through the water storage tube 220; when the pump body 100 is in the drainage state, the standpipe 220 is in the drive of piston 210 is close to the direction motion of second chamber 120, the inside liquid of first chamber 110 passes through the standpipe 220 flows in second chamber 120, and pass through delivery port 121 outwards flows, the pump body 100 the standpipe 220 with first check valve 300 mutually supports, has the function of leading, saving and buffering to liquid, is favorable to promoting the stability of the inside rivers of the pump body 100 avoids the piston pump structure the condition because of local pressure is too big and damages appears.
Hereinafter, a piston pump structure of a dental irrigator according to the present exemplary embodiment will be further described.
In this embodiment, the piston assembly 200 further includes a connecting tube 230; the connection pipe 230 is disposed in the first chamber 110; one end of the connection pipe 230 is connected to the end of the water storage pipe 220 disposed in the first chamber 110, and the other end is connected to the end of the piston 210; the side of the connection pipe 230 is provided with a water flow hole. Specifically, the connecting pipe 230 is a three-way pipe, a first through hole is formed at the end of the connecting pipe connected to the water storage pipe 220, and the water flow through holes are respectively formed on the pipe walls of the two opposite sides of the connecting pipe. The liquid in the first chamber 110 flows into the connection pipe 230 through the water through-hole and flows into the water storage pipe 220 through the first through-hole.
In this embodiment, the pump body 100 further includes a guide ring 130; the guide ring 130 is disposed between the first chamber 110 and the second chamber 120; the water storage pipe 220 is slidably disposed inside the guide ring 130. The guide ring 130 has a function of guiding the water storage pipe 220, and is beneficial to improving the stability of the water storage pipe 220 in the movement process.
In this embodiment, the pump body 100 further includes a first seal ring 140; the first seal 140 is disposed between the first chamber 110 and the second chamber 120; the water storage pipe 220 is slidably disposed inside the first sealing ring 140. Specifically, the first sealing ring 140 is disposed at the connection between the guide ring 130 and the second chamber 120; the guide ring 130 is connected to the water storage tube 220 in an interference manner, so that the liquid in the first chamber 110 can be prevented from flowing into the second chamber 120 through a gap between the water storage tube 220 and the guide ring 130.
In this embodiment, the first check valve 300 includes a first spring and a first sealing plug connected to an end of the first spring; the end of the first spring remote from the first sealing plug is secured within the second chamber 120; the first sealing plug abuts the end of the reservoir 220 that extends to the second chamber 120. Specifically, the end of the first spring remote from the first sealing plug is fixed to the end of the second chamber 120 remote from the first chamber 110; the first spring is a spiral spring capable of bearing axial tension; the first sealing plug is made of rubber or plastic, and has good elastic deformation performance.
In this embodiment, a second check valve 400 is also included; the second check valve 400 includes a second spring and a second sealing plug connected to an end of the second spring; the end part of the second spring, which is far away from the second sealing plug, is fixed on the side of the water outlet 121; the second sealing plug abuts against the water outlet 121. Specifically, the second spring is a spiral spring capable of bearing axial tension; the second sealing plug is made of rubber or plastic, and has good elastic deformation performance.
In this embodiment, the pump body 100 further includes a mounting ring 150; the mounting ring 150 is disposed outside the connection between the first chamber 110 and the second chamber 120. The first chamber 110 and the second chamber 120 are designed in a split type, and are fixedly connected by the mounting ring 150, so that the pump body 100 is simple to process and easy to assemble.
In this embodiment, the pump body 100 further includes a second seal ring 160 and a third seal ring 170; the second sealing ring 160 is disposed at the junction of the mounting ring 150 and the first chamber 110; the third sealing ring 170 is disposed at the junction of the mounting ring 150 and the second chamber 120. The second sealing ring 160 may improve the stability of the connection of the mounting ring 150 to the first chamber 110, and the third sealing ring 170 may improve the stability of the connection of the mounting ring 150 to the second chamber 120.
In this embodiment, the piston assembly 200 further includes a rotation motor 240, a motor gear 250, a transmission gear 260, an eccentric 270, and a connecting rod 280; the motor gear 250 is fixed on the rotating shaft of the rotating motor 240; the transmission gear 260 is meshed with the motor gear 250; the eccentric wheel 270 is arranged on the end face of the transmission gear 260 and is arranged non-coaxially with the transmission gear 260; one end of the connecting rod 280 is sleeved outside the eccentric wheel 270, and the other end is connected with the end of the piston 210. When the motor gear 250 is driven by the rotating motor 240 to rotate, the transmission gear 260 is driven by the motor gear 250 to rotate, the eccentric wheel 270 makes a circular motion around the central axis of the transmission gear 260, the connecting rod 280 is driven by the eccentric wheel 270 to swing, and the piston 210 is driven by the connecting rod 280 to reciprocate along the axial direction of the first chamber 110.
The working principle of the application is as follows:
when the piston 210 moves away from the second chamber 120, external liquid flows into the first chamber 110 and the water storage pipe 220 through the water inlet 111 due to the vacuum effect in the first chamber 110;
when the piston 210 is near the end of the first chamber 110 far from the second chamber 120, the first check valve 300 is in a loose state, and a part of the liquid flows into the second chamber 120 for storage due to convection and impact;
when the piston 210 moves in a direction approaching the second chamber 120, the liquid in the second chamber 120 impacts the second check valve 400 and flows out due to the pushing of the water storage tube 220.
In an embodiment of the present application, there is also provided a dental irrigator comprising a housing, a nozzle, a water tank, a power supply assembly and a piston pump arrangement according to any one of the above; the power supply assembly and the piston pump structure are respectively mounted inside the housing; the power supply assembly is electrically connected with the piston assembly 200; the nozzle and the water tank are respectively connected to the surface of the shell; the water outlet 121 is connected with the nozzle; the water inlet 111 is connected to the water tank.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or terminal device that comprises the element.
The piston pump structure of the tooth irrigator and the tooth irrigator provided by the application are described in detail, and the principle and the implementation mode of the application are explained by applying specific examples, and the description of the examples is only used for helping to understand the method and the core idea of the application; meanwhile, for a person skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A piston pump structure of a tooth flusher, comprising: the pump body, the piston assembly and the first one-way valve;
the piston assembly is arranged in the pump body in a sliding mode; wherein the pump body comprises a first chamber and a second chamber which are communicated with each other; the piston assembly comprises a piston and a water storage pipe; the end part of the piston is arranged in the first cavity in a sliding mode; one end of the water storage pipe is connected with the end part of the piston and is arranged in the first cavity, and the other end of the water storage pipe extends into the second cavity;
the first chamber is provided with a water inlet; the second chamber is provided with a water outlet; the first one-way valve is arranged in the second chamber and is abutted against the end part of the water storage pipe extending to the second chamber;
when the pump body is in a water absorption state, the water storage pipe moves in a direction away from the second chamber under the driving of the piston, and external liquid flows into the first chamber through the water inlet and flows into the second chamber through the water storage pipe;
when the pump body is in a drainage state, the water storage pipe moves towards the direction close to the second cavity under the driving of the piston, and the liquid in the first cavity flows into the second cavity through the water storage pipe and flows out through the water outlet.
2. The piston pump structure as claimed in claim 1, wherein said piston assembly further comprises a connecting pipe; the connecting pipe is arranged in the first cavity; one end of the connecting pipe is connected with the end part of the water storage pipe arranged in the first cavity, and the other end of the connecting pipe is connected with the end part of the piston; and water flow through holes are formed in the side edges of the connecting pipes.
3. The piston pump arrangement as claimed in claim 1, wherein said pump body further comprises a guide ring; the guide ring is disposed between the first chamber and the second chamber; the water storage pipe is arranged inside the guide ring in a sliding mode.
4. The piston pump structure as in claim 1, in which said pump body further comprises a first seal ring; the first seal ring is arranged between the first chamber and the second chamber; the water storage pipe is arranged inside the first sealing ring in a sliding mode.
5. The piston pump structure as in claim 1, wherein said first check valve includes a first spring and a first sealing plug attached to an end of said first spring; the end of the first spring, which is far away from the first sealing plug, is fixed in the second chamber; the first sealing plug abuts against the end part of the water storage pipe extending to the second chamber.
6. The piston pump arrangement as claimed in claim 1, further comprising a second one-way valve; the second one-way valve comprises a second spring and a second sealing plug connected to the end of the second spring; the end part of the second spring, which is far away from the second sealing plug, is fixed on the side edge of the water outlet; the second sealing plug abuts against the water outlet.
7. The piston pump structure as in claim 1, in which said pump body further comprises a mounting ring; the assembly ring is sleeved outside the joint of the first chamber and the second chamber.
8. The piston pump structure as in claim 7, in which said pump body further comprises a second seal ring and a third seal ring; the second sealing ring is arranged at the joint of the assembling ring and the first cavity; the third sealing ring is arranged at the joint of the assembling ring and the second chamber.
9. The piston pump structure as claimed in claim 1, wherein said piston assembly further comprises a rotating motor, a motor gear, a transmission gear, an eccentric wheel and a connecting rod; the motor gear is fixed on a rotating shaft of the rotating motor; the transmission gear is meshed with the motor gear; the eccentric wheel is arranged on the end face of the transmission gear and is not coaxially arranged with the transmission gear; one end of the connecting rod is sleeved outside the eccentric wheel, and the other end of the connecting rod is connected with the end of the piston.
10. A dental irrigator comprising a housing, a nozzle, a water reservoir, a power supply unit and a piston pump arrangement according to any one of claims 1 to 9; the power supply assembly and the piston pump structure are respectively arranged inside the shell; the power supply assembly is electrically connected with the piston assembly; the nozzle and the water tank are respectively connected to the surface of the shell; the water outlet is connected with the nozzle; the water inlet is connected with the water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222052414.1U CN218177441U (en) | 2022-08-04 | 2022-08-04 | Piston pump structure of tooth flushing device and tooth flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222052414.1U CN218177441U (en) | 2022-08-04 | 2022-08-04 | Piston pump structure of tooth flushing device and tooth flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218177441U true CN218177441U (en) | 2022-12-30 |
Family
ID=84617360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222052414.1U Active CN218177441U (en) | 2022-08-04 | 2022-08-04 | Piston pump structure of tooth flushing device and tooth flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218177441U (en) |
-
2022
- 2022-08-04 CN CN202222052414.1U patent/CN218177441U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115163481A (en) | Piston pump structure of tooth flushing device and tooth flushing device | |
| CN112096590A (en) | Noise-reduction, leak-proof and durable pulse tooth flushing device pump body component | |
| CN218177441U (en) | Piston pump structure of tooth flushing device and tooth flushing device | |
| CN212944507U (en) | Self-cleaning denitrification anaerobic denitrification high tower device | |
| CN202001237U (en) | Hydraulic manual pump for lifting truck cab | |
| CN215349649U (en) | Tooth flushing device core structure and tooth flushing device | |
| CN216021485U (en) | Novel water pump and tooth flushing device | |
| CN215409128U (en) | High-precision low-flow peristaltic pump | |
| CN215568215U (en) | Backflow preventer with good sealing performance | |
| CN216111147U (en) | Plunger pump with reciprocating power | |
| CN216985243U (en) | Water pump connecting structure of tooth flushing device easy to assemble and tooth flushing device | |
| CN210240027U (en) | Planetary gear speed reduction submersible electric pump | |
| CN218177383U (en) | Water pump structure of tooth flushing device and tooth flushing device | |
| CN217566405U (en) | Water pump connecting structure of tooth flushing device and tooth flushing device | |
| CN217327576U (en) | Low-friction easy-to-assemble water pump connecting structure of tooth flushing device and tooth flushing device | |
| CN221703973U (en) | Flexible pump with large suction force | |
| CN217118652U (en) | Tooth flushing device | |
| CN221169505U (en) | Petroleum drilling screw drill | |
| CN203468465U (en) | Cleaning pump device | |
| CN220705963U (en) | Magnetic pump structure with back flush subassembly | |
| CN218177384U (en) | Piston pump structure of tooth flushing device and tooth flushing device | |
| CN217002187U (en) | Low-friction water pump connecting structure of tooth flushing device and tooth flushing device | |
| CN214794002U (en) | Water environment ecological remediation real-time monitoring device | |
| CN216306340U (en) | Buffer structure for water ring screen spacious pump | |
| CN115324860A (en) | Water pump structure of tooth flushing device and tooth flushing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |