A valve plate, pump head and fluid pump having the same

Abstract

This application relates to a valve plate, a pump head, and a fluid pump having the same, belonging to the technical field of fluid pumps. The valve plate includes at least three circumferentially arranged mounting portions, with a base connecting adjacent mounting portions. Each base has an actuating surface, and an actuating portion is disposed on the actuating surface. Each base is connected by two mounting portions, so that both ends of the base are fixed to the valve seat, thereby improving the installation stability of the base and reducing valve plate failure due to installation instability. Simultaneously, when the actuating portion opens or closes the flow channel, deformation is mainly achieved through the base portions at both ends of the actuating portion, with minimal deformation of the actuating portion itself, thereby reducing lifespan loss due to deformation of the actuating portion and mitigating valve plate failure due to actuating portion failure. Therefore, the valve plate of this application can extend its service life by reducing or mitigating failure.

Description

Technical Field

[0001] This application relates to the technical field of fluid pumps, and in particular to a valve plate, a pump head, and a fluid pump having the same. Background Technology

[0002] A fluid pump is a fluid booster and delivery device. The fluid output flow rate and fluid output pressure of a fluid pump are important indicators for measuring the performance parameters of a fluid pump.

[0003] The flow output part of a traditional fluid pump is mainly the pump head at the end of the fluid movement direction. The pump head mainly includes a valve seat and a pump cover fixedly connected to the valve seat. The valve seat and the pump cover cooperate to form a discharge valve chamber for the pressurized fluid to move and be discharged. A diaphragm that cooperates with the valve seat is installed in the discharge valve chamber. The diaphragm is used to control the opening of the fluid passage on the valve seat that communicates with the discharge valve chamber, so that the pressurized fluid can enter the discharge valve chamber and finally be discharged through the pump cover.

[0004] Referring to utility model patent CN222254295U, a diaphragm is disclosed, comprising a base, two mounting portions, and at least two actuators. The two mounting portions are symmetrically arranged at both ends of the base. The at least two actuators are located on the periphery of the base and are spaced apart circumferentially. Each actuator has a turning groove on its two sides near the base end, allowing it to rotate. The rotation direction of the actuator corresponds to the axial direction of the mounting portion. This facilitates diaphragm installation. However, in actual use, the diaphragm relies solely on the mounting portions for connection between the diaphragm and the valve seat, making it prone to failure and resulting in a short service life for the fluid pump. Utility Model Content

[0005] In order to improve service life, the purpose of this application is to provide a valve plate, a pump head, and a fluid pump having the same.

[0006] The valve plate, pump head, and fluid pump with the same provided in this application adopt the following technical solution: A valve disc includes at least three circumferentially arranged mounting portions, with a base connecting two adjacent mounting portions, each base having an actuating surface, and the actuating surface having an actuating portion.

[0007] By adopting the above technical solution, each base is connected by two mounting parts, so that both ends of the base are fixed to the valve seat, thereby improving the installation stability of the base and reducing the failure of the valve plate due to unstable installation. At the same time, when the actuator opens and closes the flow channel, it mainly deforms through the base parts at both ends of the actuator, while the actuator itself deforms as little as possible, thereby reducing the life loss of the actuator due to deformation, and thus slowing down the life failure of the valve plate due to actuator failure. Therefore, the valve plate of this application can extend its service life by reducing or slowing down the occurrence of failure.

[0008] Optionally, the valve plate also includes a reinforcing part located in the middle of all mounting parts, and the reinforcing part is fixedly connected to all mounting parts.

[0009] By adopting the above technical solution, the reinforcing part connects all mounting parts in the middle to strengthen the structural strength of the valve plate itself. Before the valve plate is installed, the presence of the reinforcing part can reduce deformation damage to the valve plate during transportation and handling; after the valve plate is installed on the valve seat, the reinforcing part reduces the deformation displacement of the base actuator by connecting with the valve seat, thereby improving the stability of the actuator deformation.

[0010] Optionally, the side of the reinforcing section that corresponds to the executing section protrudes from the executing surface of the base.

[0011] By adopting the above technical solution, by setting a corresponding structure for embedding the reinforcing part on the valve seat, the protruding part of the reinforcing part can be embedded and installed on the valve seat, so that the base can drive the actuator to fit more closely to the corresponding flow channel on the valve seat, so that the actuator can close the flow path more stably, thereby improving the stability of the valve plate and reducing the occurrence of failures.

[0012] Optionally, the base includes an execution section and an installation section, with the execution part disposed on the execution section and the installation section connecting the execution section and the installation part. The width of the execution section is greater than the width of the installation section.

[0013] By adopting the above technical solution, the width of the execution section is greater than the width of the installation section, making the installation section more easily deformable. This allows the installation section to deform first when the valve plate opens the flow path, thereby reducing the deformation of the execution part and extending its service life, thus improving the service life of the valve plate.

[0014] Optionally, the base may form a deformation groove between the actuator and the mounting section.

[0015] By adopting the above technical solution, the deformation groove makes the thickness of the actuator on the base greater than the thickness of the deformation groove area, so that the thickness of the valve plate in the deformation groove area deforms first, thereby reducing the deformation of the actuator and extending the service life of the actuator, thereby improving the service life of the valve plate.

[0016] A pump head comprising a valve plate as described in any of the above.

[0017] By adopting the above technical solution, the valve plate can reduce pump head failure caused by deformation failure, thereby extending the service life of the pump head in actual use.

[0018] Optionally, the pump head also includes a pump cover and a valve seat, with an inlet chamber and an outlet chamber formed between the pump cover and the valve seat. The inlet chamber and the outlet chamber are isolated from each other. The inlet chamber is provided with a one-way valve that restricts the unidirectional flow of fluid in the inlet chamber, and the valve plate is installed in the outlet chamber. The drainage chamber has a mounting hole and a flow passage. The mounting part of the valve plate is installed in the mounting hole, and the actuator of the valve plate is controlled by the fluid pressure to deform and open / close the flow passage.

[0019] By adopting the above technical solution, the installation hole is designed to facilitate the positioning and installation of the valve plate mounting part, thereby improving the efficiency of pump head production and installation.

[0020] Optionally, the mounting hole is located in the valve seat, and the pump cover is provided with a pressure plate for reinforcing the valve plate.

[0021] By adopting the above technical solution, when the mounting part is installed in the mounting hole, the pressure table presses against the mounting part or reinforcing part of the valve plate, so that the mounting part or reinforcing part of the valve plate is further pressed against the valve seat, thereby further improving the installation stability of the valve plate.

[0022] A fluid pump comprising a pump head as described in any of the above.

[0023] By adopting the above technical solutions, the valve plate can reduce pump head failure caused by deformation failure, thereby increasing the service life of the pump head and extending the service life of the fluid pump during actual use.

[0024] Optionally, the fluid pump also includes a pump body and a drive motor, with the pump body equipped with a photoelectric module for detecting the fluid delivery volume.

[0025] By adopting the above technical solution, the photoelectric module calculates the fluid delivery volume by detecting the number of rotations of the eccentric wheel inside the pump body, and controls the number of rotations of the eccentric wheel according to the actual design needs, thereby improving the accuracy of the fluid pump output volume.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. Each base is connected by two mounting parts, ensuring that both ends of the base are fixed to the valve seat. This improves the installation stability of the base and reduces valve plate failure due to installation instability. Simultaneously, when the actuator opens and closes the flow channel, deformation is primarily achieved through the deformation of the base portions at both ends of the actuator, with minimal deformation of the actuator itself. This reduces lifespan loss due to actuator deformation, thereby mitigating valve plate failure caused by actuator failure. Therefore, the valve plate of this application can extend its service life by reducing or mitigating failure. 2. The reinforcing section connects all mounting sections in the middle to strengthen the structural strength of the valve plate itself. Before the valve plate is installed, the presence of the reinforcing section can reduce deformation damage to the valve plate during transportation and handling; after the valve plate is installed on the valve seat, the reinforcing section reduces the deformation displacement of the base actuator by connecting with the valve seat, thereby improving the stability of the actuator deformation. 3. The valve plate can reduce pump head failure caused by deformation failure, thereby extending the service life of the pump head in actual use. The setting of the mounting hole facilitates the positioning and installation of the valve plate mounting part, thereby improving the efficiency of pump head production and installation. The pressure table presses against the mounting part or reinforcement part of the valve plate, so that the mounting part or reinforcement part of the valve plate is further pressed onto the valve seat, thereby further improving the installation stability of the valve plate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional structural diagram of an embodiment of this application; Figure 3 This is a cross-sectional view of the pump head according to an embodiment of this application; Figure 4 This is a schematic diagram of the valve plate in an embodiment of this application.

[0028] In the picture: 1. Pump head; 11. Pump cover; 111. Pressure platform; 12. Valve seat; 121. Mounting hole; 13. Valve plate; 131. Mounting part; 132. Base; 1321. Actuating section; 1322. Mounting section; 1323. Deformation groove; 133. Actuating part; 134. Reinforcing part; 14. Check valve; 15. Inlet cavity; 151. Flow hole; 16. Drain cavity; 161. Flow hole; 2. Pump body; 21. Base; 22. Diaphragm seat; 23. Bell cup; 231. Flow cavity; 24. Eccentric wheel; 241. Light blocking plate; 25. Swing rod; 3. Photoelectric module; Optocoupler 31. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail below.

[0030] This application discloses a fluid pump, mainly used for fluid transportation. The fluid transported by the fluid pump of this application can be gas or liquid. The core design feature of this application lies in the valve plate. The valve plate 13 of this application can be replaced in various conventional pumps in the art according to actual design needs, including but not limited to the flow-stopping pump such as the one disclosed in CN219388115U or the pump such as the one disclosed in CN222254295U. The pump head of this application can also be replaced in various conventional pumps in the art according to actual design needs, including but not limited to the fluid pump such as the one disclosed in CN223203203U.

[0031] Reference Figure 1 and Figure 2A fluid pump includes a pump head 1, a pump body 2, and a drive motor. The pump body 2 is equipped with a photoelectric module 3 for detecting the fluid delivery volume. The drive motor has an output shaft, and energizing the drive motor causes the output shaft to rotate and output power.

[0032] The pump body 2 includes a base 21, a diaphragm seat 22, a bell cup 23, an eccentric wheel 24, and a rocker arm 25. The base 21 is mounted on a drive motor, and the output shaft of the drive motor extends into the base 21. The diaphragm seat 22 is mounted on the base 21, and the bell cup 23 is mounted on the diaphragm seat 22. The bell cup 23 has multiple flow chambers 231. The eccentric wheel 24 is mounted on the output shaft of the drive motor and is driven to rotate by the output shaft. The rocker arm 25 connects the eccentric wheel 24 and the bell cup 23. Driven by the eccentric wheel 24, the rocker arm 25 causes the bell cup 23 to oscillate periodically, so that the volume of the bell cup 23 changes periodically, thereby realizing fluid intake and fluid delivery. The positional and connection relationships of the base 21, diaphragm seat 22, bell cup 23, eccentric wheel 24, and rocker arm 25 are common knowledge well known to those skilled in the art and will not be described further here.

[0033] The optoelectronic module 3 is fixed on the base 21. The optoelectronic module has an optocoupler 31 extending into the base 21, and a light-blocking plate 241 that cooperates with the optocoupler 31 is provided on the outer peripheral surface of the eccentric wheel 24. When the eccentric wheel 24 rotates, the light-blocking plate 241 periodically blocks the optocoupler 31, so that the optocoupler 31 can generate pulse signals. The optoelectronic module can be equipped with its own chip to count the pulse information, or it can transmit the pulse signal to an external computing device for counting. Thus, the fluid delivery rate can be controlled by limiting the number of rotations of the eccentric wheel 24.

[0034] Reference Figure 2 and Figure 3 The pump head 1 includes a pump cover 11, a valve seat 12, a valve plate 13, and a check valve 14. The valve plate 13 and the check valve 14 are made of rubber to have a certain elasticity. The valve plate 13 and the check valve 14 are pushed by the fluid pressure to deform and open or close the corresponding flow path in one direction.

[0035] Reference Figure 3 and Figure 4 The valve plate 13 includes a mounting portion 131, a base 132, an actuating portion 133, and a reinforcing portion 134. The mounting portions 131 are columnar, and there are at least three mounting portions 131, the same number as the number of flow chambers 231 in the bell cup 23. The mounting portions 131 are circumferentially spaced around a virtual axis. The reinforcing portion 134 enhances the structural strength of the valve plate 13 itself. The reinforcing portion 134 is located in the center of all mounting portions 131, and is formed by multiple reinforcing ribs radiating outwards from the center. The number of reinforcing ribs is the same as the number of mounting portions 131, and each reinforcing rib is fixedly connected to one mounting portion 131.

[0036] The number of bases 132 corresponds to the number of mounting portions 131. Each base 132 is arranged in a strip-like shape, and its thickness is less than the thickness of the reinforcing ribs. Two adjacent mounting portions 131 are connected to one base 132, meaning each end of the base 132 is connected to a mounting portion 131. Each base 132 includes one actuating section 1321 and two mounting sections 1322, with the actuating section 1321 located between the two mounting sections 1322. The mounting sections 1322 connect the actuating section 1321 and the mounting portions 131. The width of the actuating section 1321 is slightly larger than the width of the mounting sections 1322 to make the mounting sections 1322 more easily deformable. When the valve plate 13 opens the flow path, the mounting sections 1322 deform first, thereby reducing the deformation of the actuating portion 133 and extending its service life.

[0037] Each actuating section 1321 of the base 132 has an actuating surface facing the valve seat 12, and an actuating part 133 is disposed on each actuating surface. The sum of the thickness of the actuating part 133 and the actuating section 1321 of the base 132 is not greater than the thickness of the reinforcing rib, so that the side of the reinforcing part 134 corresponding to the actuating part 133 protrudes from the actuating surface of the base 132. The mounting section 1322 of the base 132 forms a deformation groove 1323 between the actuating part 133 and the mounting part 131, so that the mounting section 1322 is more easily deformed than the actuating section 1321, thereby reducing the deformation of the actuating part 133 and extending the service life of the actuating part 133, thereby improving the service life of the valve plate 13.

[0038] Reference Figure 3 and Figure 4 An inlet chamber 15 and an outlet chamber 16 are formed between the pump cover 11 and the valve seat 12. The inlet chamber 15 is arranged around the outer ring of the outlet chamber 16, and the inlet chamber 15 and the outlet chamber 16 are isolated from each other.

[0039] The inlet chamber 15 has a flow-in port 151 that connects to the flow-out chamber 231. A valve plate 13 is installed in the inlet chamber 15 so that the flow-in port 151 is unidirectionally connected to the flow-out chamber 231. The outlet chamber 16 has a flow-through port 161. A valve plate 13 is installed in the outlet chamber 16. The actuator 133 of the valve plate 13 is deformed under the control of fluid pressure to open and close the flow-through port 161 so that the flow-through port 161 is unidirectionally connected to the outlet chamber 16.

[0040] To ensure stable installation of the valve plate 13, the drainage chamber 16 has a mounting hole 121 and a pressure platform 111. The mounting hole 121 is used to install and fix the mounting part 131 of the valve plate 13, and the pressure platform 111 is used to press the reinforcing part 134 or the mounting part 131 of the valve plate 13 onto the valve seat 12. In this embodiment, the mounting hole 121 is located on the valve seat 12, and the pressure platform 111 is located on the pump cover 11.

[0041] The implementation principle of a fluid pump in this application embodiment is as follows: 1) When fluid is input, after the fluid enters the inlet chamber 15, the pressure of the fluid drives the one-way valve 14 to open so that the fluid can enter the delivery chamber 231. At this time, it is found that the valve plate 13 closes the flow passage 161 to prevent the fluid in the discharge chamber 16 from flowing back. 2) When the fluid is discharged, the one-way valve 14 closes the flow port 151. The pressure of the fluid drives the base 132 and the actuator 133 of the valve plate 13 to deform, so that the flow port 161 opens, and the fluid can enter the discharge port 16 from the flow port 231 and finally be discharged from the fluid pump.

[0042] The embodiments described herein are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A valve plate, characterized in that, It includes at least three circumferentially arranged mounting portions (131), and a base (132) is connected between two adjacent mounting portions (131). Each base (132) has an execution surface, and an execution portion (133) is provided on the execution surface.

2. The valve plate according to claim 1, characterized in that, The valve plate (13) also includes a reinforcing part (134), which is located in the middle of all mounting parts (131) and is fixedly connected to all mounting parts (131).

3. A valve plate (13) according to claim 2, characterized in that, The side of the reinforcing part (134) corresponding to the executing part (133) protrudes from the executing surface of the base (132).

4. A valve plate according to claim 1, characterized in that, The base (132) includes an execution section (1321) and an installation section (1322). The execution part (133) is disposed on the execution section (1321). The installation section (1322) connects the execution section (1321) and the installation part (131). The width of the execution section (1321) is greater than the width of the installation section (1322).

5. A valve plate according to claim 1, characterized in that, The base (132) forms a deformation groove (1323) between the execution part (133) and the mounting part (131).

6. A pump head, characterized in that, Includes the valve plate (13) as described in any one of claims 1-5.

7. A pump head according to claim 6, characterized in that, The pump head (1) also includes a pump cover (11) and a valve seat (12). An inlet chamber (15) and an outlet chamber (16) are formed between the pump cover (11) and the valve seat (12). The inlet chamber (15) and the outlet chamber (16) are isolated from each other. A one-way valve (14) is provided in the inlet chamber (15) to restrict the unidirectional flow of fluid in the inlet chamber (15). The valve plate (13) is installed in the outlet chamber (16). The drain chamber (16) has a mounting hole (121) and a flow passage (161). The mounting part (131) of the valve plate (13) is mounted in the mounting hole (121). The actuator (133) of the valve plate (13) is controlled by fluid pressure to deform and open / close the flow passage (161).

8. A pump head according to claim 6, characterized in that, The mounting hole (121) is located on the valve seat (12), and the pump cover (11) is provided with a pressure plate (111) for reinforcing the installation of the valve plate (13).

9. A fluid pump, characterized in that, Includes the pump head (1) as described in any one of claims 6 to 8.

10. A fluid pump according to claim 9, characterized in that, The fluid pump also includes a pump body (2) and a drive motor, wherein the pump body is equipped with a photoelectric module (3) for detecting the amount of fluid delivered.

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