Valve element structure and pump body thereof

Abstract

The invention relates to the field of water pumps, in particular to a valve element structure and a pump body thereof, the valve element structure comprises a main body framework and a sealing ring arranged on the main body framework in a sleeving mode, a circle of assembling groove position matched with the sealing ring is formed in the outer side of the main body framework, and the sealing ring is arranged on the corresponding assembling groove position in a sleeving mode; the hardness of the main body framework is larger than that of the sealing ring. The main framework serves as a main supporting structure of the valve element, the hardness of the main framework is larger than that of a sealing ring, and it is guaranteed that the valve element has enough rigidity and stability when bearing fluid pressure or mechanical stress. The main body framework is prevented from deforming under high pressure or high back pressure, so that the integrity and the sealing performance of the main body framework structure are kept. The sealing ring is arranged on the assembling groove position of the main body framework in a sleeving mode, and the good sealing effect is achieved through close fit.

Description

Technical Field

[0001] The invention relates to the field of water pumps, in particular to a valve core structure and a pump body thereof. Background Art

[0002] The same type of diaphragm pumps on the market will face a series of performance problems during use, especially after being placed for a long time, mainly concentrated in the two aspects of valve core sticking and insufficient vacuum suction. At the same time, the design of the traditional rubber integrated valve core also exposes multiple defects, as follows:

[0003] Problems with traditional rubber integrated valve cores In response to the above problems, in-depth analysis revealed that traditional rubber integrated valve cores have the following design defects: Since the entire valve core is made of rubber material and needs to take into account dynamic sealing performance, the hardness of the valve core is relatively soft. In a high back pressure environment, the valve core is prone to deformation, which in turn affects the dynamic sealing performance and causes sealing failure. Compared with the sealing ring, the overall rubber valve core is larger in size and is prone to precipitating more sulfide substances during long-term use or storage. These sulfide substances will increase the degree of adhesion between the valve core and the fitting surface, further increasing the risk of the valve core sticking. In a high-pressure working environment, due to the soft characteristics of the rubber material, the overall rubber valve core may be washed away by the high-pressure fluid, resulting in sealing failure and a sharp drop in pump performance. This not only affects the normal operation of the pump, but may also pose a threat to equipment safety. Summary of the invention

[0004] In order to solve the above problems, the present invention provides a valve core structure and a pump body thereof. The main frame is the main supporting structure of the valve core, and its hardness is greater than the sealing ring, ensuring that the valve core has sufficient rigidity and stability when subjected to fluid pressure or mechanical stress. This helps to prevent the main frame from deforming under high pressure or high back pressure, thereby maintaining the integrity and sealing performance of the main frame structure. The sealing ring is sleeved on the mounting groove of the main frame, and a good sealing effect is achieved through close fit.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a valve core structure, including a main body frame and a sealing ring sleeved on the main body frame, wherein a circle of mounting grooves for matching the sealing ring is provided on the outer side of the main body frame, and the sealing ring is sleeved on the corresponding mounting groove; the hardness of the main body frame is greater than the hardness of the sealing ring.

[0006] Furthermore, a circle of supporting bosses is arranged on the outer side of the main frame, and the supporting bosses are located below the mounting slots.

[0007] Furthermore, a "cross"-shaped sliding column is formed at the top of the main frame.

[0008] Furthermore, an inner side wall of the sealing ring is formed with a clamping connection portion for the mounting groove, and a circle of sealing bosses is formed on the surface of the sealing ring.

[0009] The present application also provides a pump body, including a drive assembly, a valve body, and the valve core structure, wherein the drive assembly cooperates with the valve body to form a volume difference in the internal cavity of the valve body, and each valve body is provided with a water inlet and a water outlet, and the water inlet and the water outlet are equipped with a valve core structure through a reset elastic member.

[0010] Furthermore, the valve body includes a valve seat and a valve base, wherein the valve seat and the valve base cover each other up and down, and the valve base is provided with a soft diaphragm cooperating with a driving component, wherein the driving component drives the soft diaphragm to move up and down and forms a volume difference in the valve body.

[0011] Furthermore, the driving assembly includes a motor, an eccentric wheel, a rotating shaft, and a rocking frame. The output shaft of the motor is equipped with an eccentric wheel, which is installed in the waist hole in the center of the rocking frame. The motor drives the eccentric wheel to rotate in the waist hole of the rocking frame, so that the rocking frame drives the soft diaphragm to move up and down.

[0012] Furthermore, a plurality of mounting cones and mounting columns are respectively provided at the upper and lower ends of the swing frame, wherein the soft diaphragm is provided with a first mounting groove for mounting the mounting cone and a second mounting groove for mounting the mounting column.

[0013] Furthermore, it also includes a water pump body, in which a water inlet cavity and a water outlet cavity are arranged, and a water inlet pipe connected to the water inlet cavity and a water outlet pipe connected to the water outlet cavity are arranged outside the water pump body; the water pump body is also provided with a motor assembly slot for assembling a motor, two valve bodies are mounted on the upper and lower surfaces of the water pump body, and the water outlet of the valve body is connected to the water outlet cavity, and the water inlet of the valve body is connected to the water inlet cavity.

[0014] Furthermore, it also includes a spring connector located in the water outlet cavity, and the reset elastic member includes a first spring located at the water outlet and a second spring located in the water inlet cavity, one end of the first spring abuts against the inner side of the valve seat, and the other end of the first spring abuts against the connecting part at the end of the main frame; one end of the second spring is connected to the connecting part of the valve body located in the water outlet cavity, and the other end is connected to one end of the spring connector, and another second spring is connected to the connecting part of the valve body located in the water outlet cavity, and the other end is connected to the other end of the spring connector.

[0015] The beneficial effects of the present invention are:

[0016] 1. As the main support structure of the valve core, the main frame has a harder surface than the sealing ring, ensuring that the valve core has sufficient rigidity and stability when subjected to fluid pressure or mechanical stress. This helps prevent the main frame from deforming under high pressure or high back pressure, thereby maintaining the integrity of the main frame structure and sealing performance. The sealing ring is set on the mounting groove of the main frame, and a good sealing effect is achieved through a close fit.

[0017] 2. The main frame of plastic material has better rigidity and toughness than the traditional rubber integrated valve core due to its high hardness. This allows the vibration energy and amplitude generated by the motor to be more effectively transmitted to the sealing ring through the main frame when the motor is working. This energy transfer can prevent the sealing ring from sticking due to long-term static state. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a cross-sectional schematic diagram of the valve core structure located at the outlet.

[0019] Figure 2 It is a cross-sectional schematic diagram of the valve core structure located at the water inlet.

[0020] Figure 3 It is a schematic diagram of the structure of the water pump.

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the water pump.

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the water pump body.

[0023] Figure 6 It is a schematic diagram of the structure after the eccentric wheel, rotating shaft and swing frame are assembled.

[0024] Figure 7 It is a structural diagram of the swing frame.

[0025] Figure 8 It is a structural diagram of the valve body.

[0026] Fig. 9 It is a schematic diagram of the internal cross-sectional structure of the valve body.

[0027] Description of the accompanying figures: 10, valve core structure; 101, main frame; 1011, mounting slot; 1012, supporting boss; 102, sealing ring; 1021, sealing boss; 1022, clamping connection; 103, sliding column; 104, connection; 11, driving assembly; 111, motor; 112, eccentric wheel; 113, rotating shaft; 114, swing frame; 1141, waist hole; 1142, mounting cone; 11 43. Mounting column; 12. Valve body; 121. Water inlet; 122. Water outlet; 123. Valve seat; 124. Valve base; 125. Soft diaphragm; 1251. First assembly slot; 1252. Second assembly slot; 13. Water pump body; 131. Water inlet cavity; 132. Water outlet cavity; 133. Spring connector; 134. First spring; 135. Second spring; 136. Water inlet pipe; 137. Water outlet pipe. DETAILED DESCRIPTION

[0028] See also Figure 1-9As shown, the present invention relates to a valve core structure 10, comprising a main frame 101, and a sealing ring 102 sleeved on the main frame 101, wherein a circle of fitting grooves 1011 adapted to the sealing ring 102 is arranged on the outer side of the main frame 101, and the sealing ring 102 is sleeved on the corresponding fitting grooves 1011; the hardness of the main frame 101 is greater than the hardness of the sealing ring 102; in this specific embodiment, the main frame 101 is made of plastic material, and the sealing ring 102 is made of rubber material;

[0029] Its role is to:

[0030] 1. The main frame 101 is the main support structure of the valve core structure 10. Its hardness is greater than that of the sealing ring 102, ensuring that the valve core structure 10 has sufficient rigidity and stability when subjected to fluid pressure or mechanical stress. This helps prevent the valve core structure 10 from deforming under high pressure or high back pressure, thereby maintaining the integrity and sealing performance of the valve core structure 10. The sealing ring 102 is sleeved on the mounting groove 1011 of the main frame 101, and a good sealing effect is achieved through a tight fit.

[0031] 2. The valve core structure 10 made of plastic material has higher rigidity and toughness than the traditional rubber integrated valve core due to its higher hardness. This allows the vibration energy and amplitude generated when the motor 111 is working to be more effectively transmitted to the sealing ring 102 through the valve core structure 10. This energy transmission can prevent the sealing ring 102 from sticking due to long-term static state.

[0032] At the same time, a circle of supporting bosses 1012 is provided on the outer side of the main frame 101, and the supporting bosses 1012 are located below the fitting slots 1011. The supporting bosses 1012 are located below the fitting slots 1011, providing an additional support point for the sealing ring 102. This design helps prevent the sealing ring 102 from being seriously displaced or falling off when subjected to pressure or vibration, thereby enhancing the stability of the sealing ring 102. When the sealing ring 102 is subjected to fluid pressure or mechanical stress, the supporting bosses 1012 can ensure that the sealing ring 102 remains in the correct position and maintains its sealing performance.

[0033] Furthermore, a "cross"-shaped sliding column 103 is formed at the top of the main frame 101. The "cross"-shaped sliding column 103 design enables the valve core structure 10 to accurately control the inflow or outflow of the fluid. When the valve core structure 10 is in a closed state, the sealing ring 102 and the supporting boss 1012 on the main frame 101 can completely block the fluid channel to achieve a sealed closure. When the valve core structure 10 needs to be opened, the sliding column 103 can slide along the guide groove of the water outlet 122 or the water inlet 121, so that the fluid can pass smoothly. This design ensures that the valve core structure 10 can reliably play a switching role and meet the needs of fluid control.

[0034] Furthermore, a connecting portion 104 is formed at the end of the main frame 101 , and the connecting portion 104 is equipped with the resetting elastic member. The main frame 101 can be reset at the water outlet 122 or the water inlet 121 through the resetting elastic member.

[0035] The presence of the reset elastic member helps to improve the control accuracy of the valve core structure 10. When the external control force acts on the valve core structure 10, the reset elastic member will generate a corresponding reaction force to help the valve core structure 10 be positioned more accurately at the desired position. This design reduces the position deviation of the valve core structure 10 caused by unstable control force or external interference, and improves the accuracy of fluid control.

[0036] Furthermore, the inner side wall of the sealing ring 102 is formed with a snap-fit ​​connection portion 1022 for the fitting groove 1011 (in this specific embodiment, the longitudinal section of the snap-fit ​​connection portion 1022 is semicircular), and a circle of sealing bosses 1021 is formed on the surface of the sealing ring 102.

[0037] The clamping connection part 1022 (e.g., a semicircular longitudinal section) on the inner side wall of the sealing ring 102 is closely matched with the mounting slot 1011 of the main frame 101, ensuring that the sealing ring 102 can be firmly mounted on the main frame 101 and is not easy to fall off or shift. The design of the clamping connection part 1022 increases the contact area and friction between the sealing ring 102 and the main frame 101, improves the stability of the sealing ring 102, and enables it to better withstand fluid pressure and mechanical stress.

[0038] In addition, the provision of the sealing boss 1021 reduces the contact area between the sealing ring 102 and the plastic (or other material) corresponding to the water inlet and outlet. This design helps to reduce the adhesion between the two, so that the air pressure required when the valve core structure 10 is opened is reduced. The presence of the sealing boss 1021 can also prevent the sealing ring 102 from sticking to the water inlet and outlet after long-term contact, thereby ensuring the flexibility and reliability of the valve core structure 10.

[0039] Although the contact area is reduced, the design of the sealing boss 1021 can still ensure a good sealing effect between the sealing ring 102 and the water inlet and outlet. The boss can fit tightly against the surface of the water inlet and outlet to prevent fluid leakage.

[0040] In this specific embodiment, a pump body is also provided, which includes a plurality of the above-mentioned valve core structures 10, a drive assembly 11, and a valve body 12, wherein the drive assembly 11 cooperates with the valve body 12, and forms a volume difference in the internal cavity of the valve body 12, and a water inlet 121 and a water outlet 122 are provided on the valve body 12, and the valve core structure 10 is provided at the water inlet 121 and the water outlet 122. The valve body 12 includes a valve seat 123 and a valve base 124, wherein the valve seat 123 and the valve base 124 cover each other up and down, and the valve base 124 is provided with a soft diaphragm 125 that cooperates with the drive assembly 11, wherein the drive assembly 11 drives the soft diaphragm 125 to move up and down, and forms a volume difference in the valve body 12.

[0041] The pump body includes several valve core structures 10 described in detail above. These valve core structures 10 are respectively installed at the water inlet 121 and the water outlet 122 to control the inflow and outflow of fluid. The drive assembly 11 is closely matched with the valve body 12 and is the power source of the pump body. It is responsible for generating driving force so that the cavity inside the valve body 12 forms a volume difference, thereby promoting the flow of fluid. It is composed of the valve seat 123 and the valve base 124 covered up and down, and is the main part of the pump body. The valve body 12 is provided with a water inlet 121 and a water outlet 122 for fluid exchange with the external environment.

[0042] The valve seat 123 and the valve base 124 are covered together to form the valve body 12, providing a closed passage for the fluid. A seal is provided between the valve seat 123 and the valve base 124 to ensure the sealing of the valve body 12. The soft diaphragm 125 is provided on the valve base 124 and closely cooperates with the drive assembly 11. The drive assembly 11 changes the volume of the internal cavity of the valve body 12 by driving the soft diaphragm 125 to move up and down, thereby forming a volume difference and promoting the flow of the fluid.

[0043] Working principle:

[0044] When the drive assembly 11 is working, it drives the soft diaphragm 125 to move up and down. The movement of the soft diaphragm 125 changes the volume of the internal cavity of the valve body 12, forming a volume difference. Under the effect of the volume difference, the fluid is sucked into the water inlet 121 and enters the interior of the valve body 12 through the valve core structure 10. At the same time, the valve core structure 10 on the other side opens, allowing the fluid to flow out from the water outlet 122. By repeating this process continuously, the pump body achieves continuous delivery of the fluid.

[0045] Furthermore, the resetting elastic member includes a first spring 134 located at the water outlet 122, one end of the first spring 134 abuts against the inner side of the valve seat 123, and the other end of the first spring 134 abuts against the connecting portion 104. When the motor 111 stops or the eccentric wheel 112 rotates to a position where the eccentric force is reduced or disappears, the elastic force of the first spring 134 begins to act. Since one end of the first spring 134 abuts against the inner side of the valve seat 123 and the other end abuts against the connecting portion 104, it can quickly push the valve body 12 to its initial position, thereby achieving accurate and rapid resetting.

[0046] Further, the driving assembly 11 includes a motor 111, an eccentric wheel 112, a rotating shaft 113, and a swing frame 114. The output shaft of the motor 111 is equipped with an eccentric wheel 112, and the eccentric wheel 112 is equipped at the waist hole 1141 in the center of the swing frame 114. When the motor 111 drives the eccentric wheel 112 to rotate in the waist hole 1141 of the swing frame 114, the swing frame 114 drives the soft diaphragm 125 to move up and down. The upper and lower ends of the swing frame 114 are respectively provided with a plurality of mounting cones 1142 and mounting columns 1143, wherein the soft diaphragm 125 is provided with a first mounting groove 1251 for mounting with the mounting cone 1142 and a second mounting groove 1252 for mounting with the mounting column 1143.

[0047] Its working principle is: after the motor 111 is started, its output shaft drives the eccentric wheel 112 to rotate. When the eccentric wheel 112 rotates in the waist hole 1141 of the swing frame 114, a periodic eccentric force is generated. This eccentric force drives the swing frame 114 to swing up and down. The up and down swing of the swing frame 114 is transmitted to the soft diaphragm 125 through the fitting cone 1142 and the fitting column 1143. The soft diaphragm 125 moves up and down after being subjected to the eccentric force, thereby changing the volume of the internal cavity of the valve body 12. The formation of the volume difference promotes the flow of the fluid.

[0048] Furthermore, it also includes a water pump body 13, in which a water inlet cavity 131 and a water outlet cavity 132 are arranged, and a water inlet pipe 136 connected to the water inlet cavity 131 and a water outlet pipe 137 connected to the water outlet cavity 132 are arranged outside the water pump body 13; wherein the water pump body 13 is also provided with a motor 111 assembly slot for assembling the motor 111, two valve bodies 12 are mounted on the upper and lower surfaces of the water pump body 13, and the water outlet 122 of the valve body 12 is connected to the water outlet cavity 132, and the water inlet 121 of the valve body 12 is connected to the water inlet cavity 131.

[0049] The water pump body 13 is the core component of the whole system. It is provided with a water inlet cavity 131 and a water outlet cavity 132, which are used to store and transport fluids respectively. The water pump body 13 is connected with a water inlet pipe 136 and a water outlet pipe 137. The water inlet pipe 136 is connected with the water inlet cavity 131, and is used to introduce external fluid into the water pump system; the water outlet pipe 137 is connected with the water outlet cavity 132, and is used to transport the fluid in the water pump system to the outside. The water pump body 13 is also provided with a motor 111 assembly slot, which is used to assemble the motor 111 to provide power for the whole system. The two valve bodies 12 are respectively mounted on the upper and lower surfaces of the water pump body 13, and are tightly connected with the water pump body 13. The water outlet 122 of the valve body 12 is connected with the water outlet cavity 132 of the water pump body 13, and the water inlet 121 of the valve body 12 is connected with the water inlet cavity 131 of the water pump body 13.

[0050] The valve body 12 is provided with the valve core structure 10 and the soft diaphragm 125 mentioned above, which are used to control the flow direction and flow rate of the fluid. The driving assembly 11 includes the motor 111, the eccentric wheel 112, the swing frame 114 and other components, which are assembled in the motor 111 assembly slot of the water pump body 13. The motor 111 drives the soft diaphragm 125 to move up and down through the eccentric wheel 112 and the swing frame 114, thereby changing the volume of the internal cavity of the valve body 12, forming a volume difference to drive the fluid flow.

[0051] The more specific working principle is: the motor 111 starts after being powered on, driving the eccentric wheel 112 to rotate in the motor 111 assembly slot of the water pump body 13. The eccentric force generated by the rotation of the eccentric wheel 112 acts on the swing frame 114, causing the swing frame 114 to swing up and down. The swing frame 114 transmits motion to the soft diaphragm 125: the swing of the swing frame 114 is transmitted to the soft diaphragm 125 through the mounting cone 1142 and the mounting column 1143, causing the soft diaphragm 125 to move up and down. The up and down movement of the soft diaphragm 125 simultaneously changes the volume of the internal cavity of the valve body 12 and the water inlet cavity 131 or the water outlet cavity 132 of the water pump body 13. Under the action of the volume difference, the fluid is sucked into the water inlet cavity 131, then enters the water outlet cavity 132 through the valve body 12, and finally discharged from the water pump system through the outlet pipe 137.

[0052] Furthermore, the reset elastic member also includes two second springs 135 located in the water outlet cavity 132 and a spring connector 133 located in the water outlet cavity 132, wherein one end of the second spring 135 is connected to the connecting portion 104 of the valve body 12 located in the water outlet cavity 132, and the other end is connected to one end of the spring connector 133, and another second spring 135 is connected to the connecting portion 104 of the valve body 12 located in the water outlet cavity 132, and the other end is connected to the other end of the spring connector 133. When the motor 111 stops or the eccentric wheel 112 rotates to a certain position, the eccentric force decreases or disappears. At this time, the elastic force of the second spring 135 begins to act, and the valve body 12 is pushed to its initial position through the spring connector 133 and the connecting portion 104, ensuring that the valve body 12 can be accurately and quickly reset.

[0053] Moreover, in the present application, the first spring 134 and the second spring 135 can transmit the vibration of the motor 111 during operation, thereby loosening the stuck valve core. The first spring 134 and the second spring 135 are used as vibration transmission media here. They not only have the functions of storing and releasing energy, but also can effectively transfer the vibration energy of the motor 111 to the valve core. The stiffness and preload of the spring are key factors affecting the vibration transmission efficiency. By reasonably designing the parameters of the spring, the vibration transmission effect can be optimized to ensure that the valve core is subjected to sufficient vibration to loosen the sticking part while ensuring the basic sealing effect.

[0054] The above implementation modes are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering and technical personnel in the field shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A valve core structure, characterized in that: It comprises a main frame and a sealing ring sleeved on the main frame, wherein a circle of fitting grooves adapted for the sealing ring is arranged on the outer side of the main frame, and the sealing ring is sleeved on the corresponding fitting grooves; the hardness of the main frame is greater than that of the sealing ring.

2. A valve core structure according to claim 1, characterized in that: A circle of supporting bosses is arranged on the outer side of the main frame, and the supporting bosses are located below the mounting slots.

3. A valve core structure according to claim 1, characterized in that: A "cross"-shaped sliding column is formed at the top of the main frame.

4. A valve core structure according to claim 2, characterized in that: The inner side wall of the sealing ring is formed with a clamping connection part for the fitting groove, and the surface of the sealing ring is formed with a circle of sealing bosses.

5. A pump body, characterized in that: It includes a drive assembly, a valve body, and a valve core structure as described in any one of claims 1 to 4, wherein the drive assembly cooperates with the valve body to form a volume difference in the internal cavity of the valve body, and each valve body is provided with a water inlet and a water outlet, and the water inlet and the water outlet are equipped with a valve core structure through a reset elastic member.

6. A pump body according to claim 5, characterized in that: The valve body includes a valve seat and a valve base, wherein the valve seat and the valve base cover each other up and down, and the valve base is provided with a soft diaphragm cooperating with a driving component, wherein the driving component drives the soft diaphragm to move up and down and forms a volume difference in the valve body.

7. A pump body according to claim 6, characterized in that: The driving assembly includes a motor, an eccentric wheel, a rotating shaft, and a rocking frame. The output shaft of the motor is equipped with an eccentric wheel, which is installed at the waist hole in the center of the rocking frame. The motor drives the eccentric wheel to rotate in the waist hole of the rocking frame, so that the rocking frame drives the soft diaphragm to move up and down.

8. A pump body according to claim 6, characterized in that: The upper and lower ends of the swing frame are respectively provided with a plurality of mounting cones and mounting columns, wherein the soft diaphragm is provided with a first mounting groove for mounting the mounting cone and a second mounting groove for mounting the mounting column.

9. A pump body according to claim 7, characterized in that: It also includes a water pump body, which is provided with a water inlet cavity and a water outlet cavity, and a water inlet pipe connected to the water inlet cavity and a water outlet pipe connected to the water outlet cavity are provided outside the water pump body; the water pump body is also provided with a motor assembly slot for assembling a motor, two valve bodies are mounted on the upper and lower surfaces of the water pump body, and the water outlet of the valve body is connected to the water outlet cavity, and the water inlet of the valve body is connected to the water inlet cavity.

10. A pump body according to claim 7, characterized in that: It also includes a spring connector located in the water outlet cavity, and the reset elastic member includes a first spring located at the water outlet and a second spring located in the water inlet cavity, one end of the first spring abuts against the inner side of the valve seat, and the other end of the first spring abuts against the connecting part at the end of the main frame; one end of the second spring is connected to the connecting part of the valve body located in the water outlet cavity, and the other end is connected to one end of the spring connector, and another second spring is connected to the connecting part of the valve body located in the water outlet cavity, and the other end is connected to the other end of the spring connector.

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