Pump convenient to exhaust

Abstract

The utility model discloses a pump convenient to exhaust, which comprises a pump body, and the pump body is provided with an inlet, a low-pressure cavity, a first through hole, a variable-pressure cavity, a second through hole, a high-pressure cavity and an outlet which are communicated in sequence; at least two adjacent cavity walls of the low-pressure cavity form a hole wall of at least one first through hole; fluid sequentially passes through the inlet, the low-pressure cavity, the first through hole, the variable-pressure cavity, the second through hole and the high-pressure cavity and flows out of the outlet. According to the utility model, at least two adjacent cavity walls of the low-pressure cavity form the hole wall of at least one first through hole, so that bubbles in the low-pressure cavity can enter the variable-pressure cavity and the high-pressure cavity from the position of the first through hole and are discharged from the outlet, and the phenomenon of unsmooth exhaust caused by bubble gathering in the low-pressure cavity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pump technology, and in particular to a pump that facilitates venting. Background Technology

[0002] A pump is a machine that transports or pressurizes fluids. It transfers the mechanical energy of a prime mover or other external energy to a liquid, increasing the liquid's energy. Pumps are mainly used to transport liquids such as water, oil, acid and alkali solutions, emulsions, suspensions, and liquid metals. They can also transport liquid-gas mixtures and liquids containing suspended solids.

[0003] For pumps used to pressurize fluids, such as diaphragm pumps, the pump's interior is generally equipped with interconnected low-pressure chambers and high-pressure chambers. In the low-pressure chamber, air bubbles are prone to accumulate and exhaust is not smooth, which affects the pump's function. Utility Model Content

[0004] In order to overcome at least one of the defects of the prior art, the present invention provides a pump that facilitates exhaust. At least two adjacent cavity walls of the low-pressure chamber form at least one first through hole, which facilitates the entry of air bubbles inside the low-pressure chamber into the transformer chamber and the high-pressure chamber through the first through hole and the discharge from the outlet, thereby reducing the phenomenon of poor exhaust due to air bubble accumulation inside the low-pressure chamber.

[0005] The technical solution adopted by the utility model to solve its problem is:

[0006] A pump that facilitates venting includes:

[0007] The pump body is provided with an inlet, a low-pressure chamber, a first through hole, a variable pressure chamber, a second through hole, a high-pressure chamber, and an outlet that are connected in sequence.

[0008] At least two adjacent cavity walls of the low-pressure cavity form the wall of at least one first through hole;

[0009] The fluid flows sequentially through the inlet, low-pressure chamber, first through hole, variable pressure chamber, second through hole and high-pressure chamber, and then flows out from the outlet.

[0010] In some preferred embodiments, the first through hole is V-shaped, polygonal, or circular.

[0011] In some preferred embodiments, a guiding structure is provided inside the low-pressure chamber, and the guiding structure is located close to the first through hole. The guiding structure is used to introduce air bubbles into the first through hole.

[0012] In some preferred embodiments, the guide structure is a wedge shape with one end larger than the other.

[0013] In some preferred embodiments, at least one set of first through holes is provided between the low-pressure chamber and the transformer chamber. Each set of first through holes includes multiple first through holes, which are arranged radially along the circumferential direction. A guide structure is provided between two adjacent first through holes.

[0014] In some preferred embodiments, multiple pressure-transforming chambers are provided, and the multiple pressure-transforming chambers are arranged radially around the central axis of the pump body. Each pressure-transforming chamber is provided with at least one set of first through holes.

[0015] In some preferred embodiments, the low-pressure chamber is located at the center of the pump body, and the high-pressure chamber is arranged around the periphery of the low-pressure chamber.

[0016] Alternatively, the high-pressure chamber can be located at the center of the pump body, and the low-pressure chamber can be arranged around the periphery of the high-pressure chamber.

[0017] In some preferred embodiments, the pump body includes a pump body main body, a partition, and a movable part connected to each other. The inlet and outlet are respectively located on both sides of the pump body main body. A low-pressure chamber and a high-pressure chamber are formed between the pump body main body and the partition. The movable part is driven to move up and down by a drive unit. A pressure-changing chamber is formed between the partition and the movable part.

[0018] Both the first through hole and the second through hole are provided on the separator;

[0019] A first check valve is installed at the first through-hole position, and a second check valve is installed at the second through-hole position.

[0020] In some preferred embodiments, the separator is provided with a valve seat for connecting a first check valve, and the valve seat is provided with a first through hole and a guide structure circumferentially around its periphery;

[0021] The large end of the guide structure is located close to the valve seat, and the small end of the guide structure is located away from the valve seat;

[0022] The cavity wall of the low-pressure chamber and the outer wall of the valve seat form the wall of at least one first through hole.

[0023] In some preferred embodiments, the first check valve includes a first flexible diaphragm disposed within the transformer chamber;

[0024] The second check valve includes a second flexible diaphragm, which is disposed inside the high-pressure chamber.

[0025] In summary, the present invention has the following technical effects: In the present invention, at least two adjacent cavity walls of the low-pressure cavity form at least one first through hole, which facilitates the entry of air bubbles inside the low-pressure cavity into the transformer cavity and the high-pressure cavity through the first through hole and discharge from the outlet, thereby reducing the phenomenon of poor exhaust due to air bubble accumulation inside the low-pressure cavity. Attached Figure Description

[0026] Figure 1 This is a structural schematic diagram from a first perspective of an embodiment of the present utility model;

[0027] Figure 2 This is a structural schematic diagram from a second perspective of an embodiment of the present invention;

[0028] Figure 3 This is an embodiment of the present utility model. Figure 2 Schematic cross-sectional view along the AA direction;

[0029] Figure 4 This is a first-view structural schematic diagram of the separator in an embodiment of the present utility model;

[0030] Figure 5 This is a structural schematic diagram of the separator from a second perspective in an embodiment of this utility model;

[0031] Figure 6 This is a schematic diagram of the pump body structure according to an embodiment of the present invention;

[0032] Figure 7 This is an embodiment of the present utility model. Figure 1 A schematic diagram of its decomposed structure.

[0033] The meanings of the reference numerals in the attached figures are as follows:

[0034] 10. Pump body;

[0035] 101. Pump body;

[0036] 102. Separator

[0037] 103. Movable parts

[0038] 104. Valve seat

[0039] 20. Entrance;

[0040] 30. Low-pressure chamber;

[0041] 40. First through hole;

[0042] 40a. A first through hole located at the angle between the separator and the valve seat;

[0043] 40b. A first through hole located at the included angle between the valve seat, the partition, and the pump body;

[0044] 50. Transformer cavity;

[0045] 60. Second through hole;

[0046] 70. High-pressure chamber;

[0047] 80. Exports;

[0048] 90. Guiding structure;

[0049] 100. First check valve;

[0050] 110. Second check valve. Detailed Implementation

[0051] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0052] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0054] See Figures 1-7 This utility model discloses a pump that facilitates exhaust, comprising: a pump body 10, on which are arranged sequentially an inlet 20, a low-pressure chamber 30, a first through hole 40, a pressure-changing chamber 50, a second through hole 60, a high-pressure chamber 70, and an outlet 80; at least two adjacent walls of the low-pressure chamber 30 form the wall of at least one first through hole 40; fluid flows sequentially through the inlet 20, the low-pressure chamber 30, the first through hole 40, the pressure-changing chamber 50, the second through hole 60, and the high-pressure chamber 70 and flows out from the outlet 80.

[0055] It should be noted that the fluid can be water or other liquids.

[0056] In this invention, at least two adjacent walls of the low-pressure chamber 30 form at least one first through hole 40, which facilitates the entry of air bubbles inside the low-pressure chamber 30 into the transformer chamber 50 and the high-pressure chamber 70 through the first through hole 40, and their discharge from the outlet 80, thereby reducing the phenomenon of poor exhaust due to air bubble accumulation inside the low-pressure chamber 30.

[0057] Specifically, for a cylindrical low-pressure cavity, the sidewall and bottom wall of the low-pressure cavity 30 form at least one first through hole 40 wall, or the sidewall and top wall of the low-pressure cavity 30 form at least one first through hole 40 wall; for a cubic low-pressure cavity, the left sidewall and bottom wall of the low-pressure cavity 30 form at least one first through hole 40 wall, or the left sidewall and top wall of the low-pressure cavity 30 form at least one first through hole 40 wall, the right sidewall and bottom wall of the low-pressure cavity 30 form at least one first through hole 40 wall, or the right sidewall and top wall of the low-pressure cavity 30 form at least one first through hole 40 wall, or the left sidewall, right sidewall and top wall of the low-pressure cavity 30 form at least one first through hole 40 wall; in other words, at least one first through hole 40 is provided at the included angle position of the low-pressure cavity 30.

[0058] It should be noted that, as the fluid flows in the pipe at a certain speed, air is entrained or mixed in during the fluid flow. After the air follows the fluid into the interior of the pump body 10, some air bubbles will accumulate and adhere to the cavity walls, such as the walls of the low-pressure cavity 30, the variable pressure cavity 50, or the high-pressure cavity 70, especially at the included angle positions inside the low-pressure cavity 30, the variable pressure cavity 50, or the high-pressure cavity 70. Since at least two adjacent cavity walls of the low-pressure cavity 30 form the wall of at least one first through hole 40, when the flowing fluid passes through the first through hole 40 formed by the cavity walls of at least two adjacent cavity walls of the low-pressure cavity 30, some air bubbles accumulated near that location are carried away, thereby reducing the number of air bubbles in the low-pressure cavity 30. For the first through hole directly set on one cavity wall of the low-pressure cavity 30, the first through hole 40 formed by the cavity walls of at least two adjacent cavity walls of the low-pressure cavity 30 reduces the phenomenon of air bubble accumulation and poor exhaust in the low-pressure cavity 30.

[0059] Furthermore, the low-pressure chamber 30 and the transformer chamber 50 can be interconnected through a first through hole 40. In this case, at least two adjacent chamber walls of the low-pressure chamber 30 form the hole wall of the first through hole 40. The low-pressure chamber 30 and the transformer chamber 50 can also be interconnected through multiple first through holes 40. For example, two, three, four or more first through holes 40 can be provided. In this case, at least two adjacent chamber walls of the low-pressure chamber 30 form the hole wall of one first through hole 40, two first through holes 40, three first through holes 40 or more first through holes 40. That is, multiple first through holes 40 are arranged at intervals along the included angle of the low-pressure chamber 30 to reduce exhaust obstruction.

[0060] For the bubbles in the transformer chamber 50 and the high-pressure chamber 70, since the fluid flow rate in the transformer chamber 50 and the high-pressure chamber 70 is relatively faster than the fluid flow rate in the low-pressure chamber 30, most of the bubbles are discharged with the fluid.

[0061] In this embodiment of the utility model, the first through hole 40 is V-shaped, polygonal, or circular.

[0062] Specifically, when the first through hole 40 is V-shaped, the first through hole 40 includes a first part and a second part that are interconnected. The angle between the first part and the second part is α, where 30°≤α≤150°. The diameter of the part where the first part and the second part are interconnected is larger than the diameter of the first part and the diameter of the second part. This facilitates the discharge of air bubbles from the part where the first part and the second part are interconnected, and thus facilitates the discharge of air bubbles from the first through hole 40.

[0063] Specifically, when the first through hole 40 is polygonal or circular, the first through hole 40 is a hole with a certain diameter, which facilitates the discharge of air bubbles from the first through hole 40.

[0064] In other words, compared to the straight through hole, the first through hole 40 in the shape of "V", polygon or circle has a length-to-width ratio that is close to that of the other part, which can avoid the formation of slits, reduce the interception of near-spherical bubbles, and facilitate the discharge of bubbles.

[0065] In this embodiment of the present invention, a guide structure 90 is provided inside the low-pressure chamber 30. The guide structure 90 is located close to the first through hole 40 and is used to introduce air bubbles into the first through hole 40.

[0066] Since the guide structure 90 is located close to the first through hole 40, bubbles accumulate near the guide structure 90. As the fluid velocity increases when it approaches the first through hole 40, the accelerated fluid carries away the bubbles accumulated near the guide structure 90, thus facilitating the discharge of the bubbles.

[0067] In this embodiment of the utility model, the guide structure 90 is a wedge shape with one end larger than the other.

[0068] In this embodiment of the present invention, at least one set of first through holes is provided between the low-pressure chamber 30 and the transformer chamber 50. Each set of first through holes includes multiple first through holes 40, which are arranged radially along the circumferential direction. A guide structure 90 is provided between two adjacent first through holes 40.

[0069] It should be noted that there can be one or more transformer cavities 50. The following example illustrates the case where multiple transformer cavities 50 are provided.

[0070] In this embodiment of the utility model, multiple pressure-transforming chambers 50 are provided, and the multiple pressure-transforming chambers 50 are arranged radially around the central axis of the pump body 10. Each pressure-transforming chamber 50 is provided with at least one set of first through holes.

[0071] In this embodiment of the present invention, the low-pressure chamber 30 is located at the center of the pump body 10, and the high-pressure chamber 70 is arranged around the periphery of the low-pressure chamber 30; or, the high-pressure chamber 70 is located at the center of the pump body 10, and the low-pressure chamber 30 is arranged around the periphery of the high-pressure chamber 70.

[0072] See Figure 3 The low-pressure chamber 30 is located at the center of the pump body 10, and the high-pressure chamber 70 is arranged around the periphery of the low-pressure chamber 30. Compared with the low-pressure chamber 30 being located from the periphery of the pump body 10, the cavity wall surface area is reduced when the low-pressure chamber 30 is located at the center of the pump body 10, which can reduce the adhesion of bubbles and the angle position of their aggregation, and facilitate the fluid to carry away bubbles during the flow process.

[0073] In this embodiment of the utility model, the pump body 10 includes a pump body main body 101, a partition 102, and a movable part 103 connected to each other. The inlet 20 and the outlet 80 are respectively disposed on both sides of the pump body main body 101. A low-pressure chamber 30 and a high-pressure chamber 70 are formed between the pump body main body 101 and the partition 102. The movable part 103 is driven to move up and down by a drive unit. A pressure-changing chamber 50 is formed between the partition 102 and the movable part 103. A first through hole 40 and a second through hole 60 are both disposed on the partition 102. A first one-way valve 100 is disposed at the position of the first through hole 40, and a second one-way valve 110 is disposed at the position of the second through hole 60.

[0074] Specifically, the pump body 101, the partition 102, and the movable part 103 can be manufactured separately and assembled into the pump body 10 by snap-fit ​​and screw locking, which reduces the assembly difficulty and production cost; the partition 102 is a flexible structure or a rigid structure.

[0075] Therefore, the formation of at least two adjacent cavity walls of the low-pressure chamber 30 to form the wall of at least one first through hole 40 means that the wall of at least one first through hole 40 is formed by the pump body 101 and the partition 102. In other words, at least one first through hole 40 is located at the angle between the pump body 101 and the partition 102 to reduce exhaust obstruction.

[0076] Multiple first through holes 40 and second through holes 60 are provided. Each transformer chamber 50 is provided with at least one first through hole 40 and at least one second through hole 60. The volume of each transformer chamber 50 changes alternately. By setting multiple transformer chambers 50 to alternately increase pressure, the pulsating characteristics of the fluid are reduced, making the pressurized fluid more gentle. The drive unit includes a drive element, an eccentric wheel, and a swing frame. The drive element drives the swing frame to move up and down through the eccentric wheel. The swing frame is fixedly connected to the movable part 103. Multiple fixed points are provided between the swing frame and the movable part 103. Each transformer chamber 50 has at least one fixed point. The drive element is a motor. Using the drive element, eccentric wheel, and swing frame to move up and down is existing technology and will not be described in detail here. Of course, multiple cylinders can also be used to alternately drive the movable part 103 to move up and down, so that the movable part 103 increases or decreases the transformer chamber 50 through movement. Multiple transformer chambers 50 pump the fluid in the low-pressure chamber 30 into the high-pressure chamber 70 through the alternating movement of the movable part 103.

[0077] Because of the first one-way valve 100, the fluid enters the pressure-changing chamber 50 from the low-pressure chamber 30 through the first through hole 40; because of the second one-way valve 110, the fluid enters the high-pressure chamber 70 from the pressure-changing chamber 50 through the second through hole 60, thereby achieving directional flow of the fluid and achieving a better pressurization effect on the fluid.

[0078] In this embodiment of the utility model, a valve seat 104 for connecting a first one-way valve 100 is provided on the separator 102. A first through hole 40 and a guide structure 90 are provided circumferentially on the periphery of the valve seat 104. The large end of the guide structure 90 is located close to the valve seat 104, and the small end of the guide structure 90 is located away from the valve seat 104. The cavity wall of the low-pressure chamber 30 and the outer wall of the valve seat 104 form the wall of at least one first through hole 40.

[0079] See Figure 4 , Figure 5 Some bubbles in the low-pressure chamber 30 accumulate near the valve seat 104. When the flowing fluid passes through the first through hole 40, which is formed by the cavity wall of the low-pressure chamber 30 and the outer wall of the valve seat 104, it carries away some of the bubbles that have accumulated near that location, thereby reducing the number of bubbles in the low-pressure chamber 30.

[0080] Specifically, the cavity wall of the low-pressure cavity 30 is the side wall of the low-pressure cavity 30 and / or the top wall of the low-pressure cavity 30 and / or the bottom wall of the low-pressure cavity 30.

[0081] Therefore, the cavity wall of the low-pressure chamber 30 and the outer wall of the valve seat 104 form at least one first through hole 40. The hole wall refers to a portion of the first through hole 40 being located at the angle between the separator 102 and the valve seat 104, and a portion of the first through hole 40 being located at the angle between the pump body 101, the separator 102 and the valve seat 104, thereby reducing exhaust obstruction.

[0082] In this embodiment of the present invention, the first one-way valve 100 includes a first flexible diaphragm disposed in the transformer chamber 50; the second one-way valve 110 includes a second flexible diaphragm disposed in the high-pressure chamber 70.

[0083] In use, the first flexible diaphragm elastically bends and deforms according to the changes in volume and pressure of the transformer chamber 50, thereby opening and closing the first through hole 40; the second flexible diaphragm elastically bends and deforms according to the changes in volume and pressure of the transformer chamber 50, thereby opening and closing the second through hole 60.

[0084] Specifically as follows:

[0085] When the actual volume of one of the transformer chambers 50 increases, the first one-way valve 100 opens the first through hole 40, and the second one-way valve 110 closes the second through hole 60, allowing fluid to enter the transformer chamber 50 from the low-pressure chamber 30; then the actual volume of the transformer chamber 50 decreases, the first one-way valve 100 closes the first through hole 40, and the second one-way valve 110 opens the second through hole 60, allowing fluid to enter the high-pressure chamber 70 from the transformer chamber 50.

[0086] In this embodiment of the invention, the first flexible diaphragm is a silicone diaphragm or a rubber diaphragm; the second flexible diaphragm is a silicone diaphragm or a rubber diaphragm.

[0087] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A pump that facilitates venting, characterized in that, include: The pump body is provided with an inlet, a low-pressure chamber, a first through hole, a variable pressure chamber, a second through hole, a high-pressure chamber, and an outlet that are connected in sequence. At least two adjacent cavity walls of the low-pressure cavity form the wall of at least one of the first through holes; The fluid flows sequentially through the inlet, the low-pressure chamber, the first through hole, the variable pressure chamber, the second through hole, and the high-pressure chamber, and then flows out from the outlet.

2. The pump for easy venting according to claim 1, characterized in that: The first through hole is V-shaped, polygonal, or circular.

3. The pump for easy venting according to claim 1, characterized in that: The low-pressure chamber is provided with a guiding structure, which is located close to the first through hole and is used to introduce air bubbles into the first through hole.

4. The pump for easy venting according to claim 3, characterized in that: The guiding structure is a wedge shape with one end larger than the other.

5. The pump for easy venting according to claim 4, characterized in that: At least one set of first through holes is provided between the low-pressure chamber and the transformer chamber. Each set of first through holes includes multiple first through holes, which are arranged radially along the circumferential direction. The guide structure is provided between two adjacent first through holes.

6. The pump for easy venting according to claim 4, characterized in that: The pressure-changing chamber is provided in multiple ways, and the multiple pressure-changing chambers are arranged radially around the central axis of the pump body. Each pressure-changing chamber is provided with at least one set of the first through holes.

7. The pump for easy venting according to any one of claims 1-3, characterized in that: The low-pressure chamber is located at the center of the pump body, and the high-pressure chamber is arranged around the periphery of the low-pressure chamber; Alternatively, the high-pressure chamber may be located at the center of the pump body, and the low-pressure chamber may be arranged around the periphery of the high-pressure chamber.

8. The pump for easy venting according to claim 3, characterized in that: The pump body includes a pump body main body, a partition, and a movable part connected to each other. The inlet and the outlet are respectively located on both sides of the pump body main body. The low-pressure chamber and the high-pressure chamber are formed between the pump body main body and the partition. The movable part is driven to move up and down by a drive unit. The pressure-changing chamber is formed between the partition and the movable part. Both the first through hole and the second through hole are provided on the separator; A first check valve is provided at the first through hole position, and a second check valve is provided at the second through hole position.

9. The pump for easy venting according to claim 8, characterized in that: The separator is provided with a valve seat for connecting the first one-way valve, and the valve seat is provided with the first through hole and the guide structure circumferentially around its periphery. The large end of the guide structure is located close to the valve seat, and the small end of the guide structure is located away from the valve seat; The cavity wall of the low-pressure chamber and the outer wall of the valve seat form at least one hole wall of the first through hole.

10. The pump for easy venting according to claim 9, characterized in that: The first one-way valve includes a first flexible diaphragm, which is disposed within the transformer chamber; The second one-way valve includes a second flexible diaphragm disposed within the high-pressure chamber.

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