A swing pump

Abstract

The present invention discloses a novel structure swing pump, which comprises a pump chamber, a feed inlet and a discharge outlet for providing the inlet and outlet of materials. A swing impeller that swings in the pump chamber under the action of a driving device is arranged in the pump chamber. The driving device comprises a driving shaft and a driving ball. The driving shaft rotates under the action of a power device and drives the driving ball to rotate. The included angle between the center line of the driving groove and the center line of the driving shaft is less than 90 degrees. Therefore, the swing impeller swings left and right under the action of the driving ball. The periphery of the swing impeller is always in sealed and slidable connection with the pump chamber. A fixed partition is arranged in the middle of the pump chamber between the feed inlet and the discharge outlet. The partition divides the upper part of the pump chamber into two symmetric parts on the left and right. A swing port is arranged at the contact end of the swing impeller and the partition. The swing impeller is in sealed connection with the partition at the swing port. During the swinging process of the swing impeller, the feed inlet and the discharge outlet are always not communicated under the action of the partition. During the swinging process of the swing impeller, the material is pushed to achieve displacement and moves from the feed inlet to the discharge outlet.

Description

Technical Field

[0001] The present invention relates to the technical field of swing pumps, and in particular to a sanitary swing pump with stable flow rate and small flow rate and pressure pulsation. Background Art

[0002] Non-Newtonian fluid refers to a fluid that does not satisfy Newton's viscosity experimental law, that is, a fluid whose shear stress and shear strain rate are not linearly related. Non-Newtonian fluids widely exist in life, production, and nature. Tomato juice, starch solution, egg white, apple pulp, thick sugar water, soy sauce, jam, condensed milk, agar, potato pulp, melted chocolate, dough, rice flour dough, and various minced food materials such as fish mince and meat mince in the food industry are also non-Newtonian fluids.

[0003] For the transportation of non-Newtonian fluids, positive displacement pumps are usually used. A positive displacement pump is a pump that uses the change in the volume inside the pump cylinder to transport liquids, such as reciprocating pumps and rotary pumps. A reciprocating pump is a pump that uses the reciprocating motion of a piston to transport liquids, and directly transmits energy in the form of static pressure energy by the reciprocating motion of the piston. A rotary pump consists of a stationary pump casing and a rotating rotor. It has no suction valve and discharge valve. The energy is directly applied to the liquid in the form of static pressure on the side where the rotor in the pump body contacts the liquid, and the liquid is discharged by the squeezing action of the rotating rotor. At the same time, a space is left on the other side to form a low pressure, so that the liquid is continuously sucked in.

[0004] For existing reciprocating pumps and rotary pumps, when transporting non-Newtonian fluids, the flow rate is unstable, and the transported flow rate and pressure fluctuate greatly. When the food industry uses reciprocating pumps and rotary pumps to transport non-Newtonian fluid foods, the hygiene often fails to meet the standards, especially in the food field where the hygiene requirements are relatively high.

[0005] The swing pump disclosed in the present application is a type of positive displacement pump. The swing pump generates a volume change through the swing of the impeller, thereby transporting fluids. The special structure of this swing pump is simple, the flow rate is stable, and the flow rate and pressure pulsation are small, making it more suitable for occasions with high hygiene requirements such as food, medicine, and cosmetics. Summary of the Invention

[0006] The present invention discloses a swing pump with a new structure. The special structure of this swing pump is simple, the flow rate is stable, and the flow rate and pressure pulsation are small, making it more suitable for occasions with high hygiene requirements such as food, medicine, and cosmetics.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A swing pump includes a sealable pump chamber, the pump chamber includes a feed port and a discharge port for providing material to enter and exit, a swing impeller is provided in the pump chamber and swings in the pump chamber under the action of a driving device, the periphery of the swing impeller is always in sealed and slidable connection with the pump chamber, a fixed partition is provided in the middle of the pump chamber between the feed port and the discharge port, the partition divides the upper part of the pump chamber into two symmetric parts on the left and right, a swing port is provided at the contact end of the swing impeller and the partition, the swing impeller is in sealed connection with the partition at the swing port, during the swinging process of the swing impeller, the feed port and the discharge port are always not communicated under the action of the partition, and the swing impeller pushes the material to achieve displacement and moves from the feed port to the discharge port during the swinging process.

[0009] As a further scheme of the present invention: the driving device includes a driving shaft and a driving ball, one end of the driving shaft is in power connection with a power device, the other end of the driving shaft is fixedly connected with the driving ball, the driving shaft rotates under the action of the power device and drives the driving ball to rotate, the driving ball is arranged in the middle of the pump chamber, the diameter of the driving ball is larger than the width of the pump chamber, a driving groove is provided in the middle of the driving ball, a swing hole is provided in the center of the swing impeller, and the swing impeller is sleeved in the driving groove through the swing hole, and the included angle between the center line of the driving groove and the center line of the driving shaft is less than 90 degrees.

[0010] As a further scheme of the present invention: the driving ball includes two splittable driving hemisphere A and driving hemisphere B, the arc end of the driving hemisphere A is provided with an A shaft rotatably connected with the pump chamber, the flat end of the driving hemisphere A is provided with a connecting groove, the flat end of the driving hemisphere B is provided with a connecting rod that can be connected with the connecting groove in a matching manner, the arc end of the driving hemisphere B is fixedly provided with a B shaft in power connection with the driving shaft, and the A shaft, the connecting groove, the connecting rod, the B shaft and the driving shaft are concentric.

[0011] As a further scheme of the present invention: the partition is a rectangular plate shape, and an arc groove corresponding to the radian of the driving ball is provided at the lower end of the partition, and the driving ball can rotate relative to the partition in a sealed manner through the arc groove.

[0012] As a further scheme of the present invention: a sealing surface in sealed contact with the inside of the pump chamber is provided around the swing impeller, and the sealing surface is always in sealed contact with the inner wall of the pump chamber during the swinging process of the swing impeller.

[0013] As a further scheme of the present invention: the inner cavity of the pump chamber is in a round drum shape, the partition is fixedly provided at the upper end inside the pump chamber, and the feed port and the discharge port are respectively arranged on both sides of the partition.

[0014] As a further solution of the present invention: an installation hole for fixing the partition board is provided at the upper end of the pump cavity, and the installation hole conforms to the shape of the partition board, and the partition board can be installed and fixed through the installation hole.

[0015] As a further solution of the present invention: the front end of the pump cavity includes a detachable pump cover, and the pump cover is detachably connected to the pump cavity to facilitate the installation and maintenance of the inside of the pump cavity.

[0016] As a further solution of the present invention: the detachable pump cover is in an obliquely cut semi-surrounding shape relative to the pump cavity, and the pump cover and the pump cavity 1 are in concave-convex fit.

[0017] As a further solution of the present invention: the detachable pump cover is in a flat cover shape, the pump cover completely covers the side surface of the pump cavity, a convex half cavity is provided on the inner side of the pump cover, and a corresponding concave half cavity is provided at the corresponding position inside the pump cavity.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. The novel structure swing pump includes a sealable pump cavity. The pump cavity includes a feed port and a discharge port for providing material inlet and outlet. A swing impeller that swings in the pump cavity under the action of a driving device is provided in the pump cavity. The driving device includes a driving shaft and a driving ball. The driving shaft rotates under the action of a power device and drives the driving ball to rotate. The included angle between the center line of the driving groove and the center line of the driving shaft is less than 90 degrees. Therefore, the swing impeller swings left and right under the action of the driving ball; the periphery of the swing impeller is always in sealed and slidable connection with the pump cavity. A fixed partition board is provided in the middle of the feed port and the discharge port inside the pump cavity. The partition board divides the upper part of the pump cavity into two symmetric parts on the left and right. A swing port is provided at the contact end of the swing impeller and the partition board. The swing impeller is in sealed connection with the partition board at the swing port. During the swinging process of the swing impeller, the feed port and the discharge port are always not connected under the action of the partition board. The swing impeller pushes the material to achieve displacement during the swinging process and moves from the feed port to the discharge port.

[0020] The special structure design of this novel swing pump is simple, the flow rate is stable, the flow rate and pressure pulsation are small, and it is more suitable for occasions with high hygiene requirements such as food, medicine, and cosmetics.

[0021] 2. The front end of the pump cavity includes a detachable pump cover. The pump cover adopts an obliquely cut semi-surrounding shape or a flat cover type pump cover. The detachable connection between the pump cover and the pump cavity can expand the space of the pump cavity to facilitate the installation and maintenance of the inside of the pump cavity. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0023] In the drawings:

[0024] Figure 1 This is a schematic structural diagram of the swing pump (beveled pump cover) of the present invention.

[0025] Figure 2 This is a three-dimensional structural diagram of the swing pump (beveled pump cover) of the present invention.

[0026] Figure 3 This is a schematic structural diagram of the pump cavity and pump cover (beveled) of the swing pump of the present invention.

[0027] Figure 4 This is a schematic structural diagram of the drive device of the swing pump of the present invention.

[0028] Figure 5 This is a schematic structural diagram of the swing impeller of the swing pump of the present invention.

[0029] Figure 6 This is a schematic structural diagram of the partition plate of the swing pump of the present invention.

[0030] Figure 7 This is a demonstration diagram of the cyclic movement of the swing impeller of the swing pump of the present invention within the pump cavity.

[0031] Figure 8 This is a three-dimensional structural diagram of the swing pump (flat pump cover) of the present invention.

[0032] Figure 9 This is a schematic structural diagram of the pump cavity and pump cover (flat) of the swing pump of the present invention.

[0033] Figure 10 This is an enlarged partial structural diagram of the pump cavity of the swing pump (flat pump cover) of the present invention.

[0034] Annotation of reference numerals:

[0035] 1, pump cavity; 2, feed port; 3, discharge port; 4, drive device; 5, swing impeller; 6, partition plate; 7, power device; 8, mounting hole; 11, pump cover; 12, convex half cavity; 13, concave half cavity; 41, drive shaft; 42, drive ball; 43, drive groove; 44, drive A hemisphere; 45, drive B hemisphere; 46, A shaft; 47, connecting groove; 48, connecting rod; 49, B shaft; 51, swing port; 52, swing hole; 53, sealing surface; 61, arc groove; Detailed implementation manners

[0036] Exemplary embodiments will be described in detail herein, and examples thereof are shown in the accompanying drawings. When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure detailed in the appended claims.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, in the embodiments, descriptions such as "first" and "second" are only for descriptive purposes, and do not particularly refer to the order or sequence. Nor are they used to limit the present invention. They are merely used to distinguish components or operations described with the same technical terms, and should not be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] To further understand the content, features, and effects of the present invention, the following embodiments are exemplified and described in detail with reference to the accompanying drawings as follows:

[0040] As Figures 1-10 shown:

[0041] The present application discloses a novel structure swing pump with a simple structure design, stable flow rate, small flow rate and pressure pulsation, and is more suitable for occasions with high hygiene requirements such as food, medicine, and cosmetics.

[0042] It includes a sealable pump chamber 1. The pump chamber 1 includes a feed port 2 and a discharge port 3 for providing the entry and exit of materials. The inner cavity of the pump chamber 1 is in a drum shape. A swing impeller 5 that swings in the pump chamber 1 under the action of a driving device 4 is provided in the pump chamber 1. A sealing surface 53 that is in sealed contact with the inside of the pump chamber 1 is provided around the swing impeller 5. During the swinging process of the swing impeller 5, the sealing surface 53 is always in sealed contact with the inner wall of the pump chamber 1.

[0043] The swing impeller 5 is always in sealed and slidable connection with the pump chamber 1. Inside the pump chamber 1, a fixed partition 6 is provided in the middle of the feed port 2 and the discharge port 3. The partition 6 divides the upper part of the pump chamber 1 into two symmetric parts on the left and right. The contact end of the swing impeller 5 with the partition 6 is provided with a swing port 51, and the swing impeller 5 is in sealed connection with the partition 6 at the swing port 51. The function of the fixed partition 6 is to make the swing impeller 5 only swing without rotating.

[0044] The upper end of the pump chamber 1 is provided with a mounting hole 8 for fixing the partition 6. The mounting hole 8 conforms to the shape of the partition 6, and the partition 6 can be installed and fixed through the mounting hole 8.

[0045] During the swinging process of the swing impeller 5, the feed port 2 and the discharge port 3 are always not connected under the action of the partition 6. The swing impeller 5 pushes the material to achieve displacement and moves from the feed port 2 to the discharge port 3 during the swinging process. As Figure 7 shown is the demonstration diagram of the cyclic motion of the swing impeller 5.

[0046] To facilitate the maintenance of the internal components of the pump chamber 1, a detachable pump cover 11 is provided at the front end of the pump chamber 1. The pump cover 11 is detachably connected to the pump chamber 1 to facilitate the installation and maintenance of the inside of the pump chamber 1. The shape of the pump cover 11 can adopt various shapes, which is suitable for convenient maintenance and installation.

[0047] As Figures 1-3 shown, in this embodiment, the pump cover 11 is in a bevel-cut semi-surrounding shape relative to the pump chamber 1. The bottom of the pump cover 11 protrudes towards the pump chamber 1 side. The pump cover 11 and the pump chamber 1 are in concave-convex match. The bevel-cut pump cover 11 can expand the internal space of the pump chamber 1 in the non-installed state, facilitating the maintenance and installation of the internal components of the pump chamber 1.

[0048] As Figures 8-10 shown, in this embodiment, the pump cover 11 is in a flat cover shape. The pump cover 11 completely covers the side of the pump chamber 1. There is a convex half-chamber 12 on the inner side of the pump cover 11. The depth of the convex half-chamber 12 reaches the middle of the pump chamber 1. A corresponding concave half-chamber 13 is provided at the corresponding position inside the pump chamber 1. The convex half-chamber 12 and the concave half-chamber 13 can cooperate to form a complete and smooth internal pump chamber 1. The internal diameter of the pump chamber 1 can be increased in the non-installed state of the convex half-chamber 12, facilitating the maintenance and installation of the internal components.

[0049] Among them, under the action of the power device 7, the driving device 4 can drive the swing impeller 5 to swing. The structure of the driving device 4 can have various forms, and the best way is to directly convert the rotational power into the swinging power.

[0050] As Figure 4As shown in the figure, the driving device 4 includes a driving shaft 41 and a driving ball 42. One end of the driving shaft 41 is power-connected to the power device 7, and the other end of the driving shaft 41 is fixedly connected to the driving ball 42. The driving shaft 41 rotates under the action of the power device 7 and drives the driving ball 42 to rotate. The driving ball 42 is arranged in the middle of the pump chamber 1, and the diameter of the driving ball 42 is larger than the width of the pump chamber 1. Since the diameter of the driving ball 42 is larger than the width of the pump chamber 1, the sealing performance between the driving ball 42 and the pump chamber 1 can be effectively guaranteed.

[0051] A driving groove 43 is provided in the middle of the driving ball 42, and a swinging hole 52 is provided in the center of the swinging impeller 5. The swinging impeller 5 is sleeved in the driving groove 43 through the swinging hole 52. The included angle between the center line of the driving groove 43 and the center line of the driving shaft 41 is less than 90 degrees. The included angle less than 90 degrees between the center line of the driving groove 43 and the center line of the driving shaft 41 effectively converts the rotational power into the swinging power, with a simple structure and a high conversion rate.

[0052] Furthermore, in order to improve the maintainability and facilitate the assembly of the swinging pump, the driving ball 42 is composed of two splicable driving hemispheres, namely driving hemisphere A 44 and driving hemisphere B 45.

[0053] The arc end of the driving hemisphere A 44 is provided with an A shaft 46 that is rotatably connected to the pump chamber 1. The flat end of the driving hemisphere A 44 is provided with a connecting groove 47. The flat end of the driving hemisphere B 45 is provided with a connecting rod 48 that can be connected to the connecting groove 47 in a matching manner. The arc end of the driving hemisphere B 45 is fixedly provided with a B shaft 49 that is power-connected to the driving shaft 41. The A shaft 46, the connecting groove 47, the connecting rod 48, the B shaft 49 and the driving shaft 41 are concentric. The assembly design of the two hemispheres improves the assembly and maintainability of the swinging pump.

[0054] Among them, the partition plate 6 is in the shape of a rectangular parallelepiped plate. The lower end of the partition plate 6 is provided with an arc groove 61 that conforms to the radian of the driving ball 42. Through the arc groove 61, the driving ball 42 can rotate relative to the partition plate 6 in a sealed manner.

[0055] In practical applications, a swing impeller 5 that swings within the pump chamber 1 under the action of a driving device 4 is provided in the pump chamber 1. The driving device 4 includes a driving shaft 41 and a driving ball 42. The driving shaft 41 rotates under the action of a power device 7 and drives the driving ball 42 to rotate. The angle between the center line of the driving groove 43 and the center line of the driving shaft 41 is less than 90 degrees, and the rotational power is directly converted into a swinging force. Therefore, the swing impeller 5 swings left and right under the action of the driving ball 42; the periphery of the swing impeller 5 is always in sealed and slidable connection with the pump chamber 1. A fixed partition 6 is provided in the middle of the feed port 2 and the discharge port 3 inside the pump chamber 1. The partition 6 divides the upper part of the pump chamber 1 into two symmetric parts on the left and right. A swing port 51 is provided at the contact end of the swing impeller 5 and the partition 6. The swing impeller 5 is in sealed connection with the partition 6 at the swing port 51. During the swinging process of the swing impeller 5, the feed port 2 and the discharge port 3 are always not communicated under the action of the partition 6. The swing impeller 5 pushes the material to achieve displacement during the swinging process and moves from the feed port 2 to the discharge port 3.

[0056] The special structural design of this new type of swing pump is simple, with stable flow rate, small flow rate and pressure pulsation, and is more suitable for occasions with high hygiene requirements such as food, medicine, and cosmetics.

[0057] Finally, it should be noted that the above disclosure is only the preferred embodiment of the present invention and is not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. The scope of this application is only limited by the appended claims.

Claims

1. A swing pump, comprising a sealable pump chamber (1), the pump chamber (1) including a feed inlet (2) and a discharge outlet (3) for providing material to enter and exit, characterized in that: Inside the pump chamber (1), there is a swing impeller (5) that swings inside the pump chamber (1) under the action of a driving device (4). The periphery of the swing impeller (5) is always in sealed and slidable connection with the pump chamber (1). Inside the pump chamber (1), a fixed partition (6) is provided in the middle of the feed port (2) and the discharge port (3). The partition (6) divides the upper part of the pump chamber (1) into two symmetric parts on the left and right. The contact end of the swing impeller (5) with the partition (6) is provided with a swing port (51). The swing impeller (5) is in sealed connection with the partition (6) at the swing port (51). During the swinging process of the swing impeller (5), the feed port (2) and the discharge port (3) are always not connected under the action of the partition (6). During the swinging process of the swing impeller (5), the material is pushed to achieve displacement and moves from the feed port (2) to the discharge port (3). The driving device (4) includes a driving shaft (41) and a driving ball (42). One end of the driving shaft (41) is in power connection with a power device (7), and the other end of the driving shaft (41) is fixedly connected to the driving ball (42). The driving shaft (41) rotates under the action of the power device (7) and drives the driving ball (42) to rotate. The driving ball (42) is arranged in the middle of the pump chamber (1). The diameter of the driving ball (42) is larger than the width of the pump chamber (1). A driving groove (43) is provided in the middle of the driving ball (42). A swing hole (52) is provided at the center of the swing impeller (5). Through the swing hole (52), the swing impeller (5) is sleeved in the driving groove (43). The included angle between the center line of the driving groove (43) and the center line of the driving shaft (41) is less than 90 degrees. The driving ball (42) includes two spliceable driving A hemispheres (44) and driving B hemispheres (45). The arc end of the driving A hemisphere (44) is provided with an A shaft (46) that is rotatably connected to the pump chamber (1). The flat end of the driving A hemisphere (44) is provided with a connecting groove (47). The flat end of the driving B hemisphere (45) is provided with a connecting rod (48) that can be connected to the connecting groove (47) in a matching manner. The arc end of the driving B hemisphere (45) is fixedly provided with a B shaft (49) that is in power connection with the driving shaft (41). The A shaft (46), the connecting groove (47), the connecting rod (48), the B shaft (49), and the driving shaft (41) are concentric.

2. The swing pump according to claim 1, characterized in that: The partition (6) is in the shape of a rectangular parallelepiped plate. An arc groove (61) that conforms to the radian of the driving ball (42) is provided at the lower end of the partition (6). Through the arc groove (61), the driving ball (42) can rotate relative to the partition (6) in a sealed manner.

3. A swing pump according to claim 1, characterized in that: The periphery of the swing impeller (5) is provided with a sealing surface (53) that is in sealed contact with the inside of the pump chamber (1). During the swinging process of the swing impeller (5), the sealing surface (53) is always in sealed contact with the inner wall of the pump chamber (1).

4. A swing pump according to claim 1, wherein: The inner cavity of the pump chamber (1) is in the shape of a circular drum. The partition (6) is fixedly provided at the upper end inside the pump chamber (1). The feed port (2) and the discharge port (3) are respectively arranged on both sides of the partition (6).

5. The swing pump according to claim 4, characterized in that: The upper end of the pump chamber (1) is provided with a mounting hole (8) for fixing the partition plate (6). The mounting hole (8) is in conformity with the shape of the partition plate (6), and the partition plate (6) can be installed and fixed through the mounting hole (8).

6. The oscillating pump according to claim 1, characterized in that: The front end of the pump chamber (1) includes a detachable pump cover (11). The pump cover (11) is detachably connected to the pump chamber (1) to facilitate the installation and maintenance of the interior of the pump chamber (1).

7. The swing pump according to claim 6, wherein: The detachable pump cover (11) is in a beveled semi-surrounding shape relative to the pump chamber (1), and the pump cover (11) is in concave-convex fit with the pump chamber (1).

8. The swing pump according to claim 6, characterized in that: The detachable pump cover (11) is in the shape of a flat cover. The pump cover (11) completely covers the side surface of the pump chamber (1). A convex half-chamber (12) is provided on the inner side of the pump cover (11), and a corresponding concave half-chamber (13) is provided at the corresponding position inside the pump chamber (1).

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