TWI513901B - Pump - Google Patents

Description

Simple structure of the pump

The present invention relates to a pump having a simple structure, and more particularly to a pump for achieving a fluid pushing effect by using a closed groove passage and a resilient check valve.

The pump is a kind of mechanical tool commonly used in modern times. The pump can be applied to gas or liquid. The two can also be called fluid. In addition to pumping gas, the pump can also be used for liquid transport applications in chemical, medical, and semiconductor applications.

The conventional pump uses a motor to drive the compressed hollow capsule or a plug body and a fixed space to form a reciprocating piston group for the purpose of conveying fluid. Each unit of the pushing space must be configured with a fluid inlet valve and a fluid discharge valve. If a single pump with higher efficiency requires multiple hollow capsules with more intake and exhaust valve components, or more piston sets, above and below the hollow capsule or piston group. It is necessary to combine other machine components to form a complete and operable pump, which is not only costly but also inconvenient to assemble.

In addition, the gas transmission path of the conventional pump passes through the mechanical components with lubricating fluid such as the rotating shaft, the cam and the driving member, which generates oil and gas under high-speed operation, and the gas discharged from the pump is mixed with the oil and gas to reduce the quality of the gas, especially The gas produced for medical use is mixed into the oil and gas and inhaled by the human body, which is also a great hazard.

In addition, another dual-balloon pump will replace the traditional two-piece exhaust valve with a flexible cylinder as a common exhaust member, but if the number of airbags of the pump is increased, the flexible cylinder exhaust is still shared. There will be a risk of great air leakage, reducing the pumping efficiency of the pump.

Therefore, how to improve the shortcomings of the conventional pump is the direction that the relevant industry needs to work hard to improve.

The invention provides a pump with simple structure, which utilizes a closed groove channel and an integrally formed hollow capsule and a check valve to achieve a simplified number of mechanical components constituting the pump. And to avoid fluid contamination caused by the conveying process.

The invention provides a pump with simple structure, which utilizes the design of the elastic anti-reverse valve to reduce the valve related components, maintains the one-way flow of the fluid in the pump, prevents the fluid from flowing backward, and thereby improves the pump delivery efficiency.

The present invention provides a pump having a simple structure including a fluid push group including a support base, an elastic body and a top cover. The support base includes a support seat groove passage recessed on one side of the support base. The elastic body is assembled on the support base, and comprises a hollow capsule, a fluid inlet check valve and a fluid discharge check valve. The hollow capsule is integrally formed on the elastic body and used for the elastic body. The fluid is contained, and the fluid enters the check valve and the fluid discharge check valve is disposed on the elastic body and is used to regulate fluid entering and exiting the hollow capsule, respectively. The top cover is assembled on the elastic body, and includes a fluid inlet hole, a fluid discharge hole and a top cover groove passage, and the fluid inlet hole and the fluid discharge hole are disposed through the top cover, the top cover The groove passage is recessed on one side of the top cover. The hollow capsule communicates with the cap groove channel and the support groove channel via the fluid inlet check valve and the fluid discharge check valve, respectively, such that fluid enters the hollow capsule via the fluid inlet hole And then discharged by the fluid discharge hole.

In a preferred embodiment of the present invention, the elastomer in the pump of the present invention further includes a first elastomer through hole extending through the elastic body. The top cover has a top surface and a bottom surface, and the top cover groove passage is recessed in the bottom surface of the top cover, and includes a first top cover groove passage and a second top cover groove passage. The first top cover groove channel has one end communicating with the hollow body of the elastic body, and the other end communicating with the support seat groove passage via the first elastic body through hole. The second top cover groove passage has one end communicating with the hollow body of the elastic body, and the other end communicating with the support seat groove passage via the fluid discharge check valve of the elastic body. The first top cover groove channel and the second top cover groove channel are rectangular channels.

In a preferred embodiment of the present invention, the elastomer in the pump of the present invention further includes a second elastomer through hole extending through the elastic body. The support base has a top surface and a bottom surface, and the support seat groove passage is recessed on the top surface of the support base and includes a first support seat groove passage and a second support seat groove passage. The first support groove groove passage has a fluid entering the anti-back valve of the elastic body and communicates with the fluid inlet hole of the top cover, and the other end passes through the first elastic body through hole and the first top cover groove. The channels are connected to each other. The second support seat groove channel has one end communicating with the second top cover groove passage via the fluid discharge check valve of the elastic body, and the other end is connected to the top cover fluid discharge hole via the second elastic body through hole through. The first support groove passage has an enlarged end disposed at a position corresponding to the fluid entering the check valve, and the second support groove passage has an enlarged end disposed at a position corresponding to the fluid discharge check valve.

In a preferred embodiment of the present invention, the fluid inlet check valve of the pump of the present invention is disposed between the top cover fluid inlet hole and the enlarged end of the first support seat groove passage. In order to circulate the fluid in the communication space in one direction. The fluid discharge check valve is disposed between the second top cover groove passage and the enlarged end of the second support seat groove passage for circulating the fluid in the communication space in one direction. The cap fluid inlet aperture is smaller in size than the fluid enters the check valve, and the first stent groove channel flared end is sized to allow the fluid to enter the check valve opening such that the fluid enters the check valve to control fluid flow The direction of the external fluid to the inside of the pump; the second top cover groove channel is smaller than the fluid discharge check valve, and the second support seat groove channel expanded end is sized to fit the fluid discharge check valve opening The fluid is discharged from the check valve to control the flow of the fluid to the inside of the pump to the outside. The fluid entering the check valve and one side of the fluid discharge check valve are respectively a free end, and the other side is connected with the elastic body, and when the fluid circulates in one direction, the fluid enters the check valve and the fluid discharge The check valve is selectively bent to a side of the communication space larger than the area of the check valve, and when the fluid circulates in the opposite direction, the fluid enters the check valve and the fluid discharge check valve blocks the area smaller than the check valve Connected space to block the reverse flow of fluid. The free end of the fluid entering the check valve and the fluid discharge check valve is horseshoe shaped.

In a preferred embodiment of the present invention, the elastomer of the pump of the present invention comprises four hollow capsules, each hollow capsule engaging a fluid inlet hole, a fluid entering the check valve, and a fluid. The check valve, the at least one top groove channel, and the at least one seat groove channel are discharged and share a single fluid discharge hole. this invention The pump further includes a power device for providing a dynamic interaction with the elastomer to drive fluid flow inside the hollow capsule. The power unit is a motor or an electromagnetic device. The top cover further includes a drainage tube protruding from one side of the top cover, which is a hollow tubular column, and the inner space of the drainage tube communicates with the fluid discharge hole of the top cover and the outside. The support base further includes a receiving through hole, the receiving through hole penetrating through the support seat and receiving the hollow body of the elastic body. The pump is a pump for medical equipment. Preferably, the medical device can be a nasal aspirator, a nebulizer, a sphygmomanometer, a drug delivery device or an oxygen conveyor.

From another point of view, the present invention provides a pump that includes a motor, a housing, a drive member, a shaft, a cam, and a fluid push group. The driving member is disposed on the motor, and the driving member is disposed on the driving member. The rotating shaft is disposed on the driving member, and the cam is disposed on the rotating shaft and is driven by the motor to continuously rotate. The fluid pushing group includes a support base, an elastic body and a top cover. The support base includes a support seat groove passage recessed on one side of the support base. The elastic body is assembled on the support base and driven by the cam, and comprises a hollow capsule, a fluid inlet check valve and a fluid discharge check valve, the hollow capsule is for accommodating a fluid, and the fluid enters The check valve and the fluid discharge check valve are disposed on the elastic body and respectively used to regulate fluid entering and exiting the hollow capsule. The top cover is assembled on the elastic body, and includes a fluid inlet hole, a fluid discharge hole and a top cover groove passage. The fluid inlet hole and the fluid discharge hole are disposed through the top cover. The cover groove passage is recessed on one side of the top cover. The hollow capsule communicates with the cap groove channel and the support groove channel via the fluid inlet check valve and the fluid discharge check valve, respectively, such that fluid enters the hollow capsule via the fluid inlet hole And then discharged by the fluid discharge hole.

In a preferred embodiment of the present invention, the top cover further includes a buckle portion for fixing the elastic body and the support base, and is disposed at the edge of the top cover and assembled with the support cover toward the top cover One side extension is combined and a hook is provided at the free end.

Based on the above, the pump of the present invention not only simplifies the number of valve mechanism designs for fluid entry or discharge, but also uses the sealed groove passage inside the pump to transport fluid, and does not generate other internal structure of the oil and gas through the lubricating fluid, reducing transportation. Fluid Contaminant, as well as elastic anti-reverse flaps cooperatively seal the groove channel to increase the pump efficiency of most airbag shared valves.

The above described features and advantages of the invention will be apparent from the following description.

The conventional pump has a large number of parts and a complicated mechanism design, resulting in high production cost and inconvenient assembly, and the transport fluid travels through the internal components of the pump that are assisted by the lubricating fluid, causing fluid contamination problems.

In contrast, the embodiment of the present invention has a fluid pushing group in a pump having a simple structure, which comprises a supporting seat, an elastic body and a top cover, the internal structure of which constitutes a sealing groove passage, and is applicable to gas and liquid. To reduce the possibility of fluid transport contamination, and the position of the fluid entering the pump and discharge pump is located on one side of the fluid push group, so that the pump can be applied to the function of suction and discharge, and the elastic check valve replaces the complicated valve. The mechanical parts make the assembly of the pump more convenient and cost-effective. The embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which FIG.

The first figure is an exploded perspective view of a preferred embodiment of a pump in accordance with the present invention. Referring to the first figure, a pump 100 is provided in the embodiment including a fluid pushing group 101, a cam 40, a rotating shaft 50, a driving member 60, a casing 70 and a power unit 80. The power unit 80 is a source of power for providing operation of the pump 100, causing the fluid push group 101 to generate a flow of fluid caused by internal pressure changes. In the embodiment of the present invention, the power device 80 is a motor, but the invention is not limited thereto, and those skilled in the art may use other devices having the same function, such as an electromagnetic power device. The housing 70 is sleeved on the outer side of the power unit 80 to protect the structure of the high speed operation inside the pump 100. The driving member 60 is rotated by the power unit 80 and is provided with a recess for accommodating the rotating shaft 50. Preferably, the groove is provided at the center of the driving member 60. The rotating shaft 50 is disposed between the driving member 60 and the cam 40 to rotate the cam 40 in series. The fluid pushing group 101 is disposed on the cam 40 and includes a top cover 10, an elastic body 20 and a support base 30. The elastic body 20 is connected to the cam 40. Then, when the cam 40 rotates, the elastic body 20 is pushed to generate a pressure change to cause the flow of the fluid, and the structure of the top cover 10 and the support base 30 is matched to achieve the effect of continuous fluid transport. In the present embodiment, the fluid pushing group 101 is exemplified by a circular body, but the invention is not limited thereto, and may be changed to a square shape or other shapes in other embodiments. In the present embodiment, the fluid pushing group 101 is exemplified by four hollow capsules. The following description will be described by taking a single hollow capsule and a structure required for its operation as an example, but the present invention is not limited thereto. Those skilled in the art will be able to vary the number of hollow capsules and the structure to which they are matched, depending on their needs.

Figure 2A is an enlarged view of a top cover in accordance with a preferred embodiment of the first embodiment of the present invention. The second figure B is another perspective view of the second figure A. Please refer to the second figure A and the second figure B in combination. The top cover 10 includes a buckle portion 11, a fluid inlet hole 12, a first top cover groove passage 14, a second top cover groove passage 16, a fluid discharge hole 18, and a drain tube 19. The top cover 10 can be a circular body and has a top surface and a bottom surface. The buckle portion 11 is disposed at the edge of the top cover for engaging and fixing the elastic body 20 and the support base 30. Preferably, the buckle portion 11 The edge of the top cover 10 extends toward the bottom surface and a hook is provided at the free end. The fluid inlet hole 12 is a hole penetrating through the top cover 10 and is disposed on the inner side of the buckle portion 11. The first top cover groove passage 14 and the second top cover groove passage 16 are provided on the bottom surface of the top cover 10, and preferably, the first top cover groove passage 14 and the second top cover groove passage 16 are spatially phased. The separated passages are in an angular relative position. Preferably, the first top cover groove channel 14 and the second top cover groove channel 16 are rectangular channels. The fluid discharge hole 18 is a hole penetrating through the top cover 10, preferably at a center position of the top cover 10. The drainage tube 19 is protruded from the top surface of the top cover 10 and communicates with the fluid discharge hole 18. The discharge tube 19 is preferably a hollow passage extending from the top cover 10 toward the top surface by the fluid discharge hole 18.

Figure 3 is an enlarged view of an elastomer in accordance with a preferred embodiment of the first embodiment of the present invention. Please refer to the third picture. The elastic body 20 includes a first snap groove 21, a fluid inlet check valve 22, a hollow capsule 24, a first elastomer through hole 26, a fluid discharge check valve 28 and a second elastomer through hole. 29. In this embodiment, the elastic body 20 can be a circular body and is made of a rubber material, but the invention is not limited thereto. In other embodiments, it can also be silicone or other elastic material. material. The first latching recess 21 is disposed at the position of the elastic body 20 corresponding to the latching portion 11 of the top cover 10. Preferably, the first latching recess 21 is disposed at the edge of the elastic body 20 to be a circular shape of the elastic body 20. A rectangular notch in which the body is recessed inward. In the present embodiment, the fluid entering the check valve 22 is located inside the first snap groove 21; the first elastomer through hole 26 is located inside the fluid entering the check valve 22, which is a hole penetrating the elastic body 20; The discharge check valve 28 is located inside the first elastic body through hole 26; the second elastic body through hole 29 is located at the center of the elastic body 20, corresponding to the fluid discharge hole 18 of the top cover 10, which is a hole penetrating the elastic body 20. And adjacent to the fluid discharge check valve 28; the arrangement of the fluid entering the check valve 22, the first elastic body through hole 26, the fluid discharge check valve 28 and the second elastic through hole 29 in this embodiment is only one way. However, the present invention is not limited thereto, as long as the arrangement design of the same efficiency can be achieved. The hollow bladder 24 is a hollow bladder recessed from the elastomer 20 adjacent to the fluid into the check valve 22, the first elastomer passage 26 and the fluid discharge check valve 28. It is worth mentioning that one side of the fluid entering the check valve 22 and the fluid discharge check valve 28 is connected to the elastic body 20, and the other side is a free end. Preferably, the free end of the fluid entering the check valve 22 and the fluid discharge check valve 28 is horseshoe shaped.

Figure 4A is an enlarged view of a support base in accordance with a preferred embodiment of the first embodiment of the present invention. The fourth drawing B is another perspective view of the fourth drawing A. Please refer to the fourth figure A and the fourth figure B together. The support base 30 can be a circular body and has a top surface and a bottom surface, and includes a second buckle groove 31, a first support seat groove channel 32, a second support seat groove channel 34 and a The through hole 36 is accommodated. The second latching recess 31 is disposed at a position corresponding to the first latching recess 21 and the latching portion 11 of the supporting base 30, preferably at the edge of the supporting base 30, and can be a circular main body of the supporting base 30. Rectangular notch with a recess inside. The first support groove passage 32 is disposed on the top surface of the support base 30 and is located inside the second snap groove 31. Preferably, the first support groove passage 32 has an enlarged end disposed on the first support. At one end of the recessed channel 32, the enlarged end is shaped and sized to fit the fluid into the free end of the check valve 22. The second support seat groove passage 34 is disposed on the top surface of the support base 30 and is located inside the first support seat groove passage 32. Preferably, the second support seat groove passage 34 has an enlarged end portion disposed at the second side. One end of the support groove passage 34, the enlarged end The shape and size of the portion can be adapted to the free end of the fluid exiting check valve 28. The receiving through hole 36 is a hole penetrating through the support base 30 and can be used to receive the hollow body 24 of the elastic body 20.

Figure 5A is a top plan view of a fluid push set in accordance with a preferred embodiment of the pump of the present invention. Fig. B is a partial enlarged view of a portion of Fig. A, in which a portion of the line structure unnecessary for the operation of the hollow capsule of Fig. A is omitted. Figure 5C is a plan view of a top cover in accordance with a preferred embodiment of Figure 5A of the present invention. Figure 5 is a top plan view of an elastomer in accordance with a preferred embodiment of Figure 5A of the present invention. Figure 5 is a top plan view of a support block in accordance with a preferred embodiment of Figure 5A of the present invention. Please refer to FIG. 5A to FIG. In the illustration, the planar structure of the top cover 10 is indicated by a solid line (as shown in FIG. 5A and FIG. 5C), and the planar structure of the elastic body 20 is indicated by a dotted line (as shown in FIG. 5A and FIG. ), the planar structure of the support base 30 is indicated by a dotted line (as shown in FIG. 5A and FIG. When the top cover 10, the elastic body 20 and the support base 30 are combined into the fluid push group 101, the internal space thereof can constitute a closed groove passage, depending on the fluid entering the check valve 22 and the fluid discharge check valve 28 and the external fluid. Connected to each other. For the internal space communication structure of the fluid pushing group 101 of the pump 100, according to the communication condition of the fluid path from the fluid inlet hole 12 to the fluid discharge hole 18, the following Table 1 is arranged, and the reference table 1 is combined.

In other words, the fluid push group 101 can control the internal closed groove passage, the relationship between the hollow capsule and the outside by the fluid entering the check valve 22 and the fluid discharge check valve 28, and maintain the flow of the fluid in the pump. Directional.

In view of the communication condition of the individual passages, one end of the first top cover groove passage 14 of the top cover 10 communicates with the first elastic body through hole 26 of the elastic body 20, and the other end communicates with the hollow body 24. The second top cover groove passage 16 of the top cover 10 communicates with the hollow bladder 24 of the elastomer 20 at one end and the fluid discharge check valve 28 at the other end. One end of the first support groove passage 32 of the support base 30 communicates with the fluid entering the check valve 22, and the other end communicates with the first elastic body through hole 26 of the elastic body 20. One end of the second support seat groove passage 34 of the support base 30 communicates with the fluid discharge check valve 28, and the other end communicates with the second elastic body through hole 29 of the elastic body 20. Please merge with reference to Table 2.

Figure 6A is a cross-sectional view taken along line A-A of Figure 5A. Figure VIB is a cross-sectional view taken along line B-B of Figure 5A. Figure VIC is a cross-sectional view taken along line C-C of Figure 5A. Figure 7 is a partial perspective cross-sectional view of a pump in accordance with a preferred embodiment of the first embodiment of the present invention. The black bold arrow in the seventh diagram indicates the fluid path, and the fluid entering the check valve and the fluid discharge check valve are shown in a closed state. Please refer to the sixth figure A to the seventh figure. In the embodiment of the present invention, when fluid enters from the fluid inlet hole 12 of the top cover 10, it enters the check valve 22 through the fluid to reach the first support groove passage 32 of the support base 30. Due to the two ends of the first support groove channel 32 The communication fluid enters the check valve 22 and the first elastomer through hole 26, and the fluid passes through the first support groove passage 32 of the support seat 30 through the first elastomer through hole 26 to reach the first top cover of the top cover 10. Slot channel 14. By the two ends of the first top cover groove passage 14 communicating with the first elastomer through hole 26 of the elastic body 20 and the hollow capsule 24, the fluid passes through the first top cover groove passage from the first elastic body through hole 26. 14 reaches the space of the hollow capsule 24. The fluid within the hollow bladder 24 is communicable between the first header recess channel 14 and the second cap recess channel 16 of the top cover 10 so that fluid within the hollow bladder 24 can enter the second header recess In channel 16. The second top cover groove passage 16 communicates between the hollow capsule 24 and the fluid discharge check valve 28, and the fluid enters the support from the second top cover groove passage 16 of the top cover 10 through the fluid discharge check valve 28. The second support seat groove channel 34 of the seat 30. The second support groove passage 34 communicates between the fluid discharge check valve 28 and the second elastic body through hole 29, so that the second support seat groove passage 34 of the fluid from the support seat 30 passes through the second elasticity of the elastic body 20. The body through hole 29, and the second elastomer through hole 29 is in turn communicated with the fluid discharge hole 18, so that the fluid is directly discharged from the discharge pipe 19 through the fluid discharge hole 18.

According to the above, the fluid inlet hole and the fluid discharge hole are located on the top cover, and the conventional pump inlet hole and the discharge hole are located on different sides, and can only have a single purpose of suction or discharge. The pump design of the present invention is located in the same The inlet and outlet holes on the side can be connected to the suction and discharge flow tubes at the same time, which expands the applicability of the pump.

Figure 8 is a schematic illustration of the operation of a hollow capsule in accordance with a preferred embodiment of the first embodiment of the present invention. 9A and IXB are partial enlarged views of the operation of the fluid entering the check valve according to the preferred embodiment of the seventh embodiment of the present invention. Fig. 10A and Fig. B are partial enlarged views of the operation of the fluid discharge check valve according to the preferred embodiment of the seventh embodiment of the present invention. Please refer to Figure 8 to Figure 11B. In the embodiment of the present invention, the cam 40 interacts with the elastic body 20 to deform the hollow capsule 24, causing the flow of the fluid, so that the pump 100 driven by the power unit 80 achieves the effect of fluid transport. When the elastic body 20 is pulled downward by the cam 40 and is not pushed upward, the hollow capsule 24 presents a diastolic capsule 241 (as shown in the eighth figure), and the diastolic capsule 241 is in a negative pressure state. The first top cover of the hollow cover 24 and the top cover 10 The groove passage 14, the first elastic body through hole 26 of the elastic body 20, and the first support seat groove passage 32 of the support base 30 are in a direct communication state, and are located at intervals when the external pressure is greater than the pressure in the diastolic capsule 241. The fluid entering the check valve 22 will bend toward the first support groove channel 32, allowing external fluid to pass into the diastolic balloon 241 (as shown in FIG. 9A), and the top that is also in communication with the hollow capsule 24. The other end of the second top cover groove passage 16 of the cover 10 is in a closed state due to the internal negative pressure (as shown in FIG. 10B).

When the elastomer 20 is pushed up by the cam 40, the hollow capsule 24 assumes a compressed capsule 242 (as shown in the eighth figure), at which time the fluid in the compressed capsule 242 is squeezed and the internal pressure is greater than The external pressure, fluid discharge check valve 28 will bend toward the second support groove passage 34 of the support seat 30 (as shown in FIG. 11A), allowing fluid to pass through the second support groove passage 34, the elastomer 20 The second elastomer through hole 29 and the fluid discharge hole 18 of the top cover 10 are discharged outward, and the other end of the fluid enters the check valve 22 because the internal pressure is greater than the external pressure to be closed (as shown in FIG. 9B).

More specifically, when the power unit 80 drives the cam 40 to operate, the internal pressure of the hollow capsule 24 of the elastic body 20 is changed with respect to the external pressure, thereby causing the flow of the fluid and the fluid to enter the check valve 22 and the fluid. The adjustment of the discharge check valve 28 maintains a one-way flow of fluid within the pump 100. The fluid will flow from a large pressure to a small pressure. When the external pressure is greater than the internal pressure of the hollow capsule 24, the fluid entering the check valve 22 will bend toward the first support groove passage 32 having a large communication space, so that the fluid is from the fluid. The fluid having a small communication space enters the hole (as shown in FIG. 5B and FIG. 9A), and the fluid discharge check valve 28 blocks the communication space through the second support groove passage 34 communicating with the outside. The inner second cover groove channel 16 (as shown in FIG. 5B and FIG. 10B). When the internal pressure of the hollow capsule 24 is greater than the external pressure, the fluid entering the check valve 22 will block the fluid entering the hole 12 that communicates with the outside and has a small communication space by the first support groove passage 32 having a large internal communication space. 5 and B, and the fluid discharge check valve 28 is bent by the inner second top cover groove passage 16 to the second support seat groove passage 34 which communicates with the outside and has a large communication space. ,Make The fluid is discharged outward (as shown in Figure 5B and Figure 11A).

Although a possible type has been drawn for the pump in the above embodiment, those skilled in the art should know that the design of each pump is different for each manufacturer, and therefore the application of the present invention is not limited to This type of possible. In other words, it is in keeping with the spirit of the present invention as long as the corresponding valve member is omitted by the elastic check valve and the closed groove passage is used to avoid the contamination of the transport fluid. The following examples are presented to enable those of ordinary skill in the art to understand the invention and practice the invention.

In the above embodiments, the free end of the fluid entering the check valve and the fluid discharge check valve is a horseshoe shape, which is merely an alternative embodiment, and the invention is not limited thereto. In other embodiments, the fluid entry check valve and the fluid discharge check valve may be half-moon shaped check valves, which may be changed by a person skilled in the art to a rectangle or a triangle or the like according to their needs.

In the foregoing embodiment, a single hollow capsule and a structure required for its operation are taken as an example. However, the present invention is not limited thereto, and those skilled in the art can design a plurality of hollow airbags and can share a single fluid. Drain the hole. The arrangement of the fluid on the elastomer into the check valve, the first elastomer through hole, the fluid discharge check valve and the second elastic through hole is only one way, but the invention is not limited thereto, that is, in other In an embodiment, the first elastomer through hole is located at the center of the elastic body, and the second elastic body through hole is located at the inner side of the fluid entering the check valve, and the fluid inlet hole and the fluid discharge hole respectively corresponding to the top cover can be correspondingly changed. The position on the top cover 10 can be designed as long as it can achieve the same efficiency. In other words, when designed as a plurality of hollow air cells, a single fluid access hole can also be shared.

The first top cover groove channel, the second top cover groove channel, the first support groove channel, and the second support groove channel may be rectangular channels, sector channels or quadrilateral channels, just an alternative embodiment The invention is not limited thereto. In other embodiments, those skilled in the art can change the shape of the groove channel as needed.

In summary, the pump of the present invention is formed by using simplified machine component design. The fluid passage effect is achieved by the closed fluid passage and the elastic check valve. In addition, embodiments of the present invention have the following effects:

1. The closed channel is composed of a top cover, an elastic body and a support base, which omits too many complicated mechanical components in the conventional pump, increases the convenience of assembly, and reduces the cost.

2. The closed passage formed by the fluid pushing group does not pass through the mechanical components that need lubrication fluid inside the pump, which not only solves the problem of conveying fluid pollution, but also improves the quality of the conveying fluid.

3. The closed fluid channel structure reduces the contamination of the transport fluid by other internal structures of the pump, providing a pump that is more suitable for medical equipment.

4. The use of elastomeric machine components, namely hollow hollow body and elastic check valve, not only greatly simplifies the design of the mechanism, even though most hollow capsules can achieve the unidirectionality of maintaining fluid flow inside the pump. It effectively reduces the problem that the pump discharge efficiency is attenuated due to fluid leakage due to fluid ingress and incomplete discharge of the discharge valve.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and those skilled in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

100‧‧‧ pump

101‧‧‧ fluid push group

10‧‧‧Top cover

11‧‧‧Cut Department

12‧‧‧ Fluid inlet hole

14‧‧‧First top cover groove channel

16‧‧‧Second top cover groove channel

18‧‧‧ fluid discharge hole

19‧‧‧Drainage tube

20‧‧‧ Elastomers

21‧‧‧First buckle groove

22‧‧‧ Fluid enters the check valve

24‧‧‧ hollow capsule

241‧‧‧Sponsored sac

242‧‧‧Compressed sac

26‧‧‧First elastomer through hole

28‧‧‧ Fluid discharge check valve

29‧‧‧Second elastomer through hole

30‧‧‧ support

31‧‧‧Second snap groove

32‧‧‧First support groove channel

34‧‧‧Second support groove channel

36‧‧‧Receiving through holes

40‧‧‧ cam

50‧‧‧ shaft

60‧‧‧ drive parts

70‧‧‧shell

80‧‧‧Powerplant

The first figure is an exploded perspective view of a preferred embodiment of a pump in accordance with the present invention.

Figure 2A is an enlarged view of a top cover in accordance with a preferred embodiment of the first embodiment of the present invention.

The second figure B is another perspective view of the second figure A.

Figure 3 is an enlarged view of an elastomer in accordance with a preferred embodiment of the first embodiment of the present invention.

Figure 4A is an enlarged view of a support base in accordance with a preferred embodiment of the first embodiment of the present invention.

The fourth drawing B is another perspective view of the fourth drawing A.

Figure 5A is a top plan view of a fluid push set of a preferred embodiment of the pump in accordance with the present invention.

Figure 5B is a partial enlarged view of a portion of the fifth diagram A, in which the fifth diagram A is omitted. The line structure of the unnecessary part of the hollow capsule when it is actuated.

Figure 5C is a top plan view of a top cover in accordance with a preferred embodiment of Figure 5A of the present invention.

Figure 5D is a schematic view of an elastomer in a top view of a top cover in accordance with a preferred embodiment of the fifth Figure A of the present invention.

Figure 5 is a schematic view of a support seat in a top view of the top cover of the preferred embodiment of Figure 5A of the present invention.

Figure 6A is a cross-sectional view taken along line A-A of Figure 5A.

Figure VIB is a cross-sectional view taken along line B-B of Figure 5A.

Figure VIC is a cross-sectional view taken along line C-C of Figure 5A.

Figure 7 is a partial perspective cross-sectional view of a pump in accordance with a preferred embodiment of the first embodiment of the present invention, in which the bold black arrow indicates the fluid path, and the fluid enters the check valve and the fluid discharge check valve are closed. Show it.

Figure 8 is a schematic illustration of the operation of a hollow capsule in accordance with a preferred embodiment of the first embodiment of the present invention.

9A and 9B are partial enlarged views of the operation of a fluid entering a check valve according to a preferred embodiment of the seventh embodiment of the present invention.

Fig. 10A and Fig. B are partial enlarged views of the operation of the fluid discharge check valve according to the preferred embodiment of the seventh embodiment of the present invention.

100‧‧‧ pump

101‧‧‧ fluid push group

10‧‧‧Top cover

20‧‧‧ Elastomers

30‧‧‧ support

40‧‧‧ cam

50‧‧‧ shaft

60‧‧‧ drive parts

70‧‧‧shell

80‧‧‧ motor

Claims (17)

The utility model relates to a pump with a simple structure, comprising: a fluid pushing group, comprising: a supporting base, comprising a supporting seat groove channel recessed on one side of the supporting seat; an elastic body assembled on the supporting base and comprising a hollow capsule, a fluid entering the check valve and a fluid discharge check valve, the hollow capsule being integrally formed with the elastic body and configured to contain a fluid, the fluid entering the check valve and the fluid discharging a reverse flap is disposed on the elastic body and configured to regulate fluid into and out of the hollow capsule, respectively; and a top cover is assembled on the elastic body and includes a fluid inlet hole, a fluid discharge hole and a top cover concave a tank passage, the fluid inlet hole and the fluid discharge hole are disposed through the top cover, the top cover groove passage is recessed on one side of the top cover; wherein the hollow capsule enters the check valve and the fluid discharge via the fluid The regulation of the check valve is in communication with the cap groove channel and the support groove channel, respectively, such that fluid enters the hollow capsule through the fluid inlet hole and is discharged by the fluid discharge hole. The pump of claim 1, wherein the elastic body further comprises a first elastic body through hole disposed through the elastic body, the top cover having a top surface and a bottom surface, and the top cover groove The channel is recessed on the bottom surface of the top cover and includes: a first top cover groove channel, one end of which communicates with the hollow body of the elastic body, and the other end of which is through the first elastic body through hole and the support seat groove And a second top cover groove passage, one end of which communicates with the hollow body of the elastic body, and the other end communicates with the support seat groove passage via a fluid discharge check valve of the elastic body. The pump of claim 2, wherein the first top cover groove channel and the second top cover groove channel are rectangular channels. The pump of claim 2, wherein the elastic body further comprises a second elastic through hole extending through the elastic body, the support base having a top surface and a bottom surface, and the support seat groove The passage is recessed on the top surface of the support base and includes: a first support seat groove passage, and one end of the fluid passing through the elastic body enters the stop a lobes are in communication with the fluid inlet opening of the top cover, the other end is in communication with the first top cover groove passage via the first elastomer through hole; and a second support seat groove passage is flanked by the elastic The fluid discharge check valve of the body communicates with the second top cover groove passage, and the other end communicates with the top cover fluid discharge hole via the second elastic body through hole. The pump of claim 4, wherein the first support groove passage has an enlarged end portion corresponding to the fluid entering the check valve, and the second support groove passage has an expansion The end portion is disposed at a position corresponding to the fluid discharge check valve. The pump of claim 5, wherein the fluid entering the check valve is disposed between the cap fluid inlet hole and the enlarged end of the first support groove channel for connecting the fluid in the communication space One-way circulation; and the fluid discharge check valve is disposed between the second top cover groove passage and the second support seat groove passage enlarged end portion for unidirectional circulation of the fluid in the communication space. The pump of claim 6, wherein the cap fluid inlet aperture is smaller than the fluid entering the check valve, and the first stent groove channel is expanded to fit the fluid into the heel valve. Opening, such that the fluid enters the check valve to control the flow of fluid to the outside of the pump to the inside of the pump; the second cover groove channel is smaller than the fluid discharge check valve, and the second support groove The enlarged end of the passage is sized to open the fluid discharge check valve such that the fluid exits the check valve to control the flow of fluid to the interior of the pump to the outside. The pump of claim 1, wherein the fluid enters the check valve and one side of the fluid discharge check valve is a free end, and the other side is connected to the elastic body, when the fluid flows along When flowing in one direction, the fluid enters the check valve and the fluid discharge check valve selectively bends to a side of the communication space larger than the area of the check valve, and when the fluid circulates in the opposite direction, the fluid enters the check valve The fluid discharge check valve blocks the communication space smaller than the area of the check valve, blocking the reverse flow of the fluid. The pump of claim 8, wherein the fluid enters the check valve The free end with the fluid exiting the check valve is horseshoe shaped. A pump according to any one of claims 1 to 9, wherein the elastomer comprises four hollow capsules, each hollow capsule engaging a fluid inlet hole, a fluid entering a check valve, and a fluid discharge. A check valve, at least one cap groove channel, and at least one support groove channel, and sharing a single fluid discharge hole. The pump of any one of claims 1 to 9 further comprising a power unit for providing a dynamic interaction with the elastomer to drive fluid flow within the hollow capsule. A pump according to any one of claims 1 to 9, wherein the power unit is a motor or an electromagnetic device. The pump of claim 1, wherein the top cover further comprises a drainage tube protruding from one side of the top cover, being a hollow tubular column, the inner space of the drainage tube and the top cover The fluid discharge hole is in communication with the outside; the support base further includes a receiving through hole penetrating through the hollow seat of the support seat for receiving the elastic body. For example, the pump described in claim 1 of the patent scope, wherein the pump is a pump for medical equipment. The pump of claim 14, wherein the medical device is a nasal aspirator, a nebulizer, a sphygmomanometer, a drug delivery device or an oxygen delivery device. A pump includes: a motor; a casing disposed outside the motor; a driving member disposed on the motor; a rotating shaft disposed on the driving member; a cam disposed on the rotating shaft The motor is driven to produce continuous rotation; and a fluid pushing group includes: a support base including a support seat groove passage recessed on one side of the support base; an elastic body assembled on the support base and received by Driven by the cam, comprising a hollow capsule, a fluid entering a check valve and a fluid discharge check valve, the hollow capsule for containing a fluid, the fluid entering the check valve and the fluid discharge check valve And the top cover is assembled on the elastic body and includes a fluid inlet hole, a fluid discharge hole and a top cover groove passage. The fluid inlet hole and the fluid discharge hole are disposed through the top cover, and the top cover groove channel is recessed on one side of the top cover; wherein the hollow capsule enters the check valve and the fluid discharge check valve via the fluid The control is in communication with the top cover groove channel and the support seat groove channel, respectively, such that fluid enters the hollow capsule through the fluid inlet hole and is discharged by the fluid discharge hole. The pump of claim 16, wherein the top cover further comprises a buckle portion for fixing the elastic body and the support base, and is disposed at an edge of the top cover and facing the top cover The support assembly is extended in one side and has a hook at the free end.