CN219061942U - Diversion structure for pump and pump - Google Patents

Abstract

The utility model relates to the field of pumps, in particular to a flow guide structure for a pump and the pump. One side of the fluid guiding-in path and one side of the fluid guiding-out path are positioned on the same side in the fluid assembly, and the other side of the fluid guiding-in path and the other side of the fluid guiding-out path are communicated with two sides of the conversion path. Accordingly, the path of the fluid into the flow guiding structure becomes longer, so that the flow velocity of the fluid becomes slower than that in the related art, and thus the generated noise is reduced.

Description

Diversion structure for pump and pump

Technical Field

The utility model relates to the field of pumps, in particular to a flow guide structure for a pump and the pump.

Background

Currently, fluid pumps have a function of rapidly pumping fluid, and thus are widely used in daily life.

In the related art, the fluid pump comprises a shell, a motor, an eccentric wheel, a swing rod, a diaphragm and a one-way conducting piece, wherein the eccentric wheel, the swing rod, the diaphragm and the one-way valve are all arranged inside the shell, an inflow cavity and a drainage hole are formed in the shell, the motor drives the eccentric wheel to rotate, the eccentric wheel drives the swing rod to move back and forth in the rotating process, the diaphragm is extruded in the moving process of the eccentric wheel, and fluid in the diaphragm flows out of the shell along the drainage hole after the diaphragm is extruded. The working environment is greatly affected due to the large fluid flow rate and the large noise generated during the process of pressing the diaphragm.

In the related art, there is a case where the pump in the related art is noisy during operation.

Disclosure of Invention

In order to reduce the problem that the noise is great in the operation in-process of pump, this application provides a water conservancy diversion structure and a pump for pump.

The flow guide structure for the pump comprises a flow guide assembly, wherein the flow guide assembly is provided with a fluid flow path, and the fluid flow path is used for allowing fluid to enter and guide; the fluid flow path comprises a fluid guiding-in path, a switching path and a fluid guiding-out path, wherein one end of the fluid guiding-in path is used for allowing fluid to enter, the other end of the fluid guiding-in path is communicated with one end of the switching path, and the other end of the switching path is communicated with one end of the fluid guiding-out path; the other end of the fluid guiding-out path is communicated with the outside of the flow guiding component and is used for discharging fluid, one end of the fluid guiding-in path, which is used for entering fluid, and one end of the fluid guiding-out path, which is used for discharging fluid, are positioned on the same side of the flow guiding component, and the conversion path is arranged on the other side of the flow guiding component.

By adopting the technical scheme, when fluid enters the shell of the pump, the fluid can flow along with the arrangement of the diversion component and can sequentially pass through the fluid guide-in path, the conversion path and the fluid guide-out path. The inlet of the fluid guiding-in path and the outlet of the fluid guiding-out path are positioned on the same side of the fluid component, so that the fluid can form a 'nearly' shaped path on the shell, the path distance of the fluid is increased, the consumption of the fluid in the flowing process is increased, and the flow velocity of the fluid is slowed down finally. Therefore, the problem of loud noise of the whole pump during operation can be reduced.

Optionally, the fluid guiding path includes a first exhaust channel, a second exhaust channel and a third exhaust channel, where the first exhaust channel, the second exhaust channel and the third exhaust channel are sequentially arranged upward and communicated vertically, and the third exhaust channel is communicated with the outside of the diversion assembly, and vertical projections of the first exhaust channel, the second exhaust channel and the third exhaust channel are mutually overlapped.

By adopting the technical scheme, fluid can go to the fluid guiding-out path due to different pressures, and because the first exhaust channel, the second exhaust channel and the third exhaust channel are vertically arranged, in the exhaust process, the fluid can accelerate to pass through the fluid guiding-out path without countercurrent. Therefore, the operation of the pump can be maintained stable.

Optionally, the water conservancy diversion subassembly includes the communicating piece, the transition route set up in on the communicating piece, the communicating piece includes water conservancy diversion portion, centralized part and exhaust portion, the inlet port has been seted up to the water conservancy diversion portion, the inlet port is used for supplying fluid the communicating piece, the water conservancy diversion portion is provided with the multiunit, centralized part is used for concentrating multiunit the fluid of water conservancy diversion portion, centralized part intercommunication in the exhaust portion, the exhaust portion has seted up the gas vent, the gas vent intercommunication in the fluid derivation route.

Through adopting above-mentioned technical scheme, the centralized part can concentrate the fluid that gets into the intercommunication piece, carries out the exhaust again to reach the flow path and lengthen, and then reach the consumption that increases the fluid in the flow process, finally play the effect that slows down to the velocity of flow of fluid. Therefore, the problem of loud noise of the whole pump during operation can be reduced.

Optionally, the flow guiding part is provided with a flow guiding channel, and the flow guiding channel is used for allowing the fluid of the flow guiding part to enter the concentration part; the side wall of the diversion channel is provided with an arc-shaped surface.

By adopting the technical scheme, the arc-shaped surface has better guidance quality for fluid relative to the straight surface and better consumption effect for the fluid, so that the problem of larger noise of the whole pump in the operation process can be reduced.

Optionally, the device further comprises a diaphragm member, the flow guiding assembly comprises a communicating member, the transition path is arranged on the communicating member, the communicating member is provided with a transition cavity, and the transition cavity is used for forming the transition path; the pressure groove is formed in the communicating piece and used for installing the diaphragm piece, and a space is reserved between the upper top surface of the diaphragm piece and the bottom of the pressure groove.

By adopting the technical scheme, before the diaphragm piece is not deformed, the internal air pressure of the diaphragm piece is consistent with the air pressure in the transition cavity, and at the moment, the fluid does not enter the diaphragm piece yet. When the diaphragm member receives extrusion deformation, the air pressure in the diaphragm member is larger than the air pressure in the transition cavity, and the fluid in the diaphragm member enters the transition cavity and is discharged. However, because the upper top surface of the diaphragm member and the groove top of the pressing groove are spaced, the fluid in the transition cavity cannot flow towards the diaphragm member, so that unidirectional flow of the fluid is formed.

Optionally, the communicating member includes a first chamber portion and a second chamber portion, an opening of the second chamber portion is larger than an opening of the first chamber portion, the second chamber portion is disposed on a side of the communicating member, which is close to the second fixing seat, and a side of the second chamber portion, which is close to the second fixing seat, is disposed parallel to an upper surface of the second fixing seat.

Through adopting above-mentioned technical scheme, first cavity portion is used for supplying the diaphragm piece installation, and second cavity portion is connected in the second fixing base, and forms the transition chamber with between the second fixing base, so, can upwards get into the transition chamber at the fluid, and the last horizontal direction of downward movement moves. This lengthens the overall fluid path, thus making noise lower, and less prone to reflux.

Optionally, the flow guiding assembly further comprises a second fixing seat, and the communicating piece is arranged above the second fixing seat; the second fixing seat is provided with an installation cavity, the installation cavity is used for being provided for installing the air pump, the air pump comprises an installation part and an air chamber part, the installation part is installed in the pressing groove, the air chamber part is installed in the installation cavity, the second fixing seat is provided with a second exhaust channel, and the upper end opening of the second exhaust channel is flush with the upper surface of the air chamber part.

By adopting the technical scheme, the fluid is conveniently discharged.

Optionally, the water conservancy diversion subassembly still includes first fixing base, first fixing base set up in the below of second fixing base, first holding chamber and air vent have been seted up to first fixing base, first fixing base includes air inlet unit and separation portion, air inlet unit set up in one side of first fixing base, the air vent set up in one side of air inlet unit, the air vent is used for outside fluid to get into first holding chamber, separation portion set up in the air vent orientation in one side of first holding chamber, the length direction of separation portion is followed and is close to the direction of second fixing base is extended.

By adopting the technical scheme, when the fluid enters the air vent, the fluid can be blocked by the blocking part and flows along the length direction of the blocking part, so that the flow speed of the fluid is reduced when the fluid enters the fluid guide-in path, and the noise of the pump in the operation process is reduced.

Optionally, the first accommodating cavity, the mounting cavity and the transition cavity are sequentially arranged vertically upwards.

By adopting the technical scheme, the length of the flow path of the fluid is increased, so that the consumption of the fluid in the flowing process is increased, and finally the noise is reduced.

The pump comprises a flow guide structure for the pump and further comprises a component for the pump, wherein the component for the pump is connected with the flow guide structure for the pump and is used for driving the shape of the air pump to change and driving the fluid guide path to suck air.

By adopting the technical scheme, when the fluid pump is in use, external air enters the fluid guide-in path through the air vent; and the motor drives the eccentric wheel to perform eccentric motion, and the eccentric wheel impacts the diaphragm piece, so that the volume of the diaphragm piece is changed. When the diaphragm member is impacted, the volume of the diaphragm member becomes smaller, and the pressure of the fluid guiding-out path is smaller than that of the fluid guiding-in path, so that the fluid in the fluid guiding-in path moves towards the direction of the fluid guiding-out path. When the pressure in the fluid introduction path is equal to the pressure in the fluid discharge path, the volume of the diaphragm member is restored due to the plastic material of the diaphragm member, and the pressure in the diaphragm member is smaller than the pressure in the external fluid, so that the external fluid can rapidly enter the pump to realize circulation. In the present application, the fluid introduction path and the fluid discharge path are both long, and therefore, the amount of fluid consumed during the flow is increased, and noise generated during the operation is reduced, as compared with the related art.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the path distance of the fluid is increased, so that the consumption of the fluid in the flowing process is increased, and finally, the flow velocity of the fluid is slowed down. Therefore, the problem that the noise of the integral pump is large in the operation process can be reduced;

2. the fluid will travel to the fluid outlet path due to the different pressures, and because the first, second and third exhaust channels are arranged vertically, during the exhaust process the fluid will accelerate through the fluid outlet path without backflow. Therefore, the operation of the pump can be maintained stable;

3. when the fluid enters the air vent, the fluid is blocked by the blocking part and flows along the length direction of the blocking part, so that the flow speed of the fluid is reduced when the fluid enters the fluid introducing path, and the noise of the pump in the operation process is reduced.

Drawings

FIG. 1 is a schematic exploded view of a first embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a first embodiment of the present application;

fig. 3 is a schematic structural view of a communication member according to the first embodiment of the present application;

FIG. 4 is an enlarged schematic view of a partial structure of the communication part in FIG. 1 according to the first embodiment of the present application;

fig. 5 is a schematic exploded view of a structure according to a second embodiment of the present application.

Reference numerals illustrate: 1. a flow guiding assembly; 11. a first fixing seat; 111. a vent; 112. a first accommodation chamber; 113. a first exhaust passage; 12. the second fixing seat; 121. a mounting cavity; 122. a second exhaust passage; 13. a communication member; 131. a transition chamber; 132. a third exhaust passage; 133. a flow guiding part; 1331. a first flow guiding unit; 13311. an air inlet hole; 1332. a second flow guiding unit; 1333. a diversion channel; 134. a concentration section; 1341. a concentration chamber; 135. an exhaust unit; 1351. an exhaust port; 1352. an exhaust passage; 136. pressing the groove; 137. a first chamber portion; 138. a second chamber portion; 2. a diaphragm member; 3. a fluid introduction path; 4. a fluid derivation path; 5. the path is switched.

Detailed Description

The present application is described in further detail below in conjunction with fig. 1-4.

The application example discloses a water conservancy diversion structure for pump.

Referring to fig. 1 and 2, a flow guiding structure for a pump includes a flow guiding assembly 1 and a diaphragm member 2, where the flow guiding assembly 1 includes a first fixing seat 11, a second fixing seat 12 and a communicating member 13, and in this embodiment, the first fixing seat 11, the second fixing seat 12 and the communicating member 13 are sequentially disposed vertically upwards. The diaphragm 2 is arranged between the second fixed seat 12 and the communicating piece 13, and the upper side and the lower side of the diaphragm 2 are respectively penetrated through the second fixed seat 12 and the communicating piece 13; the diaphragm 2 is slidably connected to the second fixing base 12, and a vent 111 is provided at one side of the first fixing base 11, and the vent 111 is used for allowing external fluid to enter. In addition, the first fixing base 11 is provided with a first accommodating cavity 112, the second fixing base 12 is provided with a mounting cavity 121, the diaphragm member 2 is mounted in the mounting cavity 121, the communicating member 13 is provided with a transition cavity 131, wherein the first accommodating cavity 112 is communicated with the mounting cavity 121, and the mounting cavity 121 is communicated with the transition cavity 131. Thus, fluid will pass through the first receiving chamber 112, the mounting chamber 121 and the transition chamber 131 in that order as it enters the pump flow directing structure through the vent 111. In the present embodiment, the first accommodation chamber 112 and the installation chamber 121 constitute a fluid introduction path 3; the transition chamber 131 constitutes the transition path 5.

Referring to fig. 1 and 3, in order to further slow down the flow rate of the fluid entering the fluid introduction path 3, in this application, the first fixing seat 11 includes an air inlet portion and a blocking portion, wherein the air vent 111 is disposed at one side of the air inlet portion, and the air vent 111 is in communication with the outside and the first accommodating cavity 112. The blocking portion is disposed in the first accommodating cavity 112, the length of the blocking portion extends vertically upwards, and the blocking portion is disposed in the first accommodating cavity 112 at a side close to the air vent 111.

Referring to fig. 1 and 3, the first fixing seat 11 is provided with a first exhaust channel 113, the second fixing seat 12 is provided with a second exhaust channel 122, and the communicating member 13 is provided with a third exhaust channel 132, wherein the first exhaust channel 113 is communicated with the second exhaust channel 122, and the second exhaust channel 122 is communicated with the third exhaust channel 132; the third exhaust passage 132 communicates with the transition chamber 131. Also, in the present embodiment, the opening sizes of the first exhaust passage 113, the second exhaust passage 122, and the third exhaust passage 132 are the same; the first exhaust passage 113, the second exhaust passage 122, and the third exhaust passage 132 are provided upward in this order; one side of the first exhaust passage 113 away from the second exhaust passage 122 communicates with the outside. And in the present embodiment, the first exhaust passage 113, the second exhaust passage 122 and the third exhaust passage 132 are all vertically disposed and positioned on the same straight line; in the present embodiment, the first exhaust passage 113, the second exhaust passage 122, and the third exhaust passage 132 constitute the fluid derivation path 4.

Accordingly, when the fluid flows to one side of the transition chamber 131 after the diaphragm member 2 is lifted, the fluid passes through the third exhaust passage 132, the second exhaust passage 122, and the first exhaust passage 113 in this order to the outside through the fluid discharge path 4.

Referring to fig. 2 and 3, in the present embodiment, the communicating member 13 is provided in a square shape, and the communicating member 13 includes a flow guiding portion 133, a concentration portion 134, and an exhaust portion 135, wherein the flow guiding portion 133 is provided with four groups, and the four groups of flow guiding portions 133 are uniformly distributed in a central circumferential direction along a central position of the communicating member 13; the four sets of flow guiding portions 133 are each configured to guide fluid into a concentration portion 134, the concentration portion 134 is configured to concentrate the fluid of the four sets of flow guiding portions 133 and redirect the fluid into an exhaust portion 135, and the exhaust portion 135 is configured to exhaust the fluid into the fluid guiding path 4.

Referring to fig. 3, the flow guiding portion 133 includes a first flow guiding unit 1331 and a second flow guiding unit 1332, an air inlet hole 13311 is formed in the first flow guiding unit 1331, the first flow guiding unit 1331 and the second flow guiding unit 1332 are arranged in a circular shape, and an inner wall of the second flow guiding unit 1332 is attached to an outer wall of the first flow guiding unit 1331; moreover, a diversion channel 1333 is formed between the inner wall of the second diversion unit 1332 and the outer wall of the first diversion unit 1331, one side of the air inlet 13311 is communicated with the mounting cavity 121, and the other side of the air inlet 13311 is communicated with the diversion channel 1333. Therefore, after the fluid passes through the air inlet holes 13311, the fluid enters the concentration portion 134 along the diversion channel 1333.

Referring to fig. 3, the concentration portion 134 is provided with a concentration chamber 1341, and in this embodiment, since the flow guiding portion 133 is provided with four groups, the flow guiding channels 1333 are also provided with four groups, and openings of the four groups of flow guiding channels 1333 are all communicated with the concentration chamber 1341; thus, the concentration chamber 1341 may collect the fluid of the diversion portion 133.

Referring to fig. 3, in the present embodiment, the exhaust portions 135 are provided with four groups, and the four groups of exhaust portions 135 are uniformly distributed along the center circumferential direction of the communication member 13; and the four groups of exhaust portions 135 are all provided with an exhaust port 1351 and an exhaust channel 1352, wherein one end of the exhaust channel 1352 is communicated with the centralized cavity 1341, the other end of the exhaust channel 1352 is communicated with the exhaust port 1351, the exhaust port 1351 is communicated with the third exhaust channel 132, and in this embodiment, the exhaust channel 1352 is attached to the outer wall of the second diversion unit 1332. The purpose of this arrangement is that the fluid entering the communication member 13 needs to pass through the air inlet hole 13311, the flow guide passage 1333, the air inlet chamber, the air outlet passage 1352 and the air outlet 1351 in order, and then enter the third air outlet passage 132 through the air outlet 1351, so that the flow path of the fluid is prolonged, and noise is reduced.

Referring to fig. 3 and 4, the communicating member 13 is provided with a pressing groove 136, the pressing groove 136 is used for pressing the upper surface of the diaphragm member 2, and in a specific implementation process, the outer wall of the diaphragm member 2 and the inner wall of the pressing groove 136 form a transition cavity 131; in addition, there is a space between the upper top surface of the diaphragm member 2 and the groove top of the pressing groove 136. The purpose of this is that the air pressure inside the diaphragm 2 corresponds to the air pressure in the transition chamber 131 when the fluid has not entered the diaphragm 2 before the diaphragm 2 is not deformed. When the diaphragm 2 is deformed by extrusion, the air pressure in the diaphragm 2 is larger than the air pressure in the transition cavity 131, and the fluid in the diaphragm 2 enters the transition cavity 131 and then enters the third exhaust channel 132 until being discharged. The air pressure in the diaphragm member 2 is then smaller than the air pressure in the transition chamber 131, but because of the spacing between the upper top surface of the diaphragm member 2 and the top of the abutment groove 136, the fluid in the transition chamber 131 does not flow in the direction of the diaphragm member 2, thereby forming a unidirectional flow of fluid. When the volume of the diaphragm 2 is reduced, negative pressure is formed so as to suck the fluid in the first accommodating cavity 112, so that the diaphragm 2 is stable in shape. The purpose of this arrangement is to form a stable fluid flow structure, maintaining the gas path stable.

Referring to fig. 3 and 4, the communication member 13 includes a first chamber portion 137 and a second chamber portion 138, wherein an opening of the first chamber portion 137 is smaller than an opening of the second chamber portion 138, and the second chamber portion 138 is disposed at a side of the communication member 13 close to the second fixing base 12. When the communicating member 13 is mounted on the second fixing base 12, a space is provided between the second chamber portion 138 and the second fixing base 12, and the space is communicated with the third exhaust channel 132, and is a part of the conversion path.

The implementation principle of the embodiment of the application: a flow guiding structure for a pump comprises a flow guiding assembly 1 and a diaphragm member 2. Wherein, the flow guiding assembly 1 is internally provided with a fluid guiding path 3, a switching path 5 and a fluid guiding path 4. Wherein one side of the fluid introducing path 3 and one side of the fluid guiding path 4 are positioned at the same side in the fluid assembly, and the other side of the fluid introducing path 3 and the other side of the fluid guiding path 4 are communicated with both sides of the switching path 5. Accordingly, the path of the fluid into the flow guiding structure becomes longer, so that the flow velocity of the fluid becomes slower than that in the related art, and thus the generated noise is reduced.

Moreover, in practice, the air pressure inside the diaphragm 2 coincides with the air pressure in the transition chamber 131 when the fluid has not entered the diaphragm 2 before the diaphragm 2 is deformed. When the diaphragm 2 is deformed by extrusion, the air pressure in the diaphragm 2 is larger than the air pressure in the transition cavity 131, and the fluid in the diaphragm 2 enters the transition cavity 131 and then enters the third exhaust channel 132 until being discharged. The air pressure in the diaphragm member 2 is then smaller than the air pressure in the transition chamber 131, but because of the spacing between the upper top surface of the diaphragm member 2 and the top of the abutment groove 136, the fluid in the transition chamber 131 does not flow in the direction of the diaphragm member 2, thereby forming a unidirectional flow of fluid. When the volume of the diaphragm 2 is reduced, negative pressure is formed so as to suck the fluid in the first accommodating cavity 112, so that the diaphragm 2 is stable in shape. The purpose of this arrangement is to form a stable fluid flow structure, maintaining the gas path stable.

Embodiment two:

referring to fig. 5, a pump includes the above-mentioned guiding structure for pump, still include the subassembly for pump, wherein, the subassembly for pump includes motor, eccentric wheel, pendulum rod and one-way conduction spare, and the output of motor is connected in the eccentric wheel and is driven the eccentric wheel to make eccentric motion, and the pendulum rod is connected in the air pump, and the air pump is connected in diaphragm 2, and one-way conduction spare is connected in diaphragm 2, consequently, at the operation in-process of pump, the fluid only can one-way motion, is difficult for producing the condition of countercurrent.

The implementation principle of the embodiment of the application: when the fluid pump is in use, external air enters the fluid introduction path 3 through the vent 111; and the motor drives the eccentric wheel to perform eccentric motion, and the eccentric wheel impacts the diaphragm piece 2, so that the volume of the diaphragm piece 2 is changed. When the diaphragm member 2 is impacted, the volume of the diaphragm member 2 becomes smaller, and the pressure of the fluid introduction path 4 becomes smaller than the pressure of the fluid introduction path 3, so that the fluid in the fluid introduction path 3 moves toward the fluid introduction path 4. When the pressure in the fluid inlet path 3 and the pressure in the fluid outlet path 4 are equal, and due to the plastic material of the diaphragm member 2, the volume of the diaphragm member 2 is restored, and the pressure in the diaphragm member 2 is smaller than the pressure in the external fluid, the external fluid can quickly enter the pump to realize circulation. In the present application, since the fluid introduction path 3 and the fluid discharge path 4 are both longer than in the related art, the consumption of the fluid during the flow process is increased, and noise generated during the operation is reduced.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The flow guiding structure for the pump is characterized by comprising a flow guiding component (1), wherein the flow guiding component (1) is provided with a fluid flow path, and the fluid flow path is used for allowing fluid to enter and guide; the fluid flow path comprises a fluid introduction path (3), a conversion path (5) and a fluid discharge path (4), one end of the fluid introduction path (3) is used for allowing fluid to enter, the other end of the fluid introduction path (3) is communicated with one end of the conversion path (5), and the other end of the conversion path (5) is communicated with one end of the fluid discharge path (4); the other end of the fluid guiding-out path (4) is communicated with the outside of the flow guiding assembly (1) and is used for discharging fluid, one end of the fluid guiding-in path (3) for entering fluid and one end of the fluid guiding-out path (4) for discharging fluid are located on the same side of the flow guiding assembly (1), and the conversion path (5) is arranged on the other side of the flow guiding assembly (1).

2. The diversion structure for pump according to claim 1, wherein the fluid guiding-out path (4) comprises a first exhaust channel (113), a second exhaust channel (122) and a third exhaust channel (132), the first exhaust channel (113), the second exhaust channel (122) and the third exhaust channel (132) are sequentially arranged and communicated upwards along the vertical direction, the third exhaust channel (132) is communicated with the outside of the diversion assembly (1), and the vertical projections of the first exhaust channel (113), the second exhaust channel (122) and the third exhaust channel (132) are mutually overlapped.

3. The diversion structure for pump according to claim 1, characterized in that the diversion assembly (1) comprises a communicating piece (13), the conversion path (5) is arranged on the communicating piece (13), the communicating piece (13) comprises a diversion part (133), a concentration part (134) and an exhaust part (135), the diversion part (133) is provided with an air inlet hole (13311), the air inlet hole (13311) is used for supplying fluid to the communicating piece (13), the diversion part (133) is provided with a plurality of groups, the concentration part (134) is used for concentrating the fluid of a plurality of groups of diversion parts (133), the concentration part (134) is communicated with the exhaust part (135), the exhaust part (135) is provided with an exhaust port (1351), and the exhaust port (1351) is communicated with the fluid guiding path (4).

4. A pump guide structure according to claim 3, wherein the guide portion (133) is provided with a guide channel (1333), and the guide channel (1333) is used for allowing the fluid of the guide portion (133) to enter the concentration portion (134); the side wall of the diversion channel (1333) is provided with an arc-shaped surface.

5. The flow guiding structure for a pump according to claim 1, further comprising a diaphragm member (2), wherein the flow guiding assembly (1) comprises a communicating member (13), the communicating member (13) is provided with a transition path, the communicating member (13) is provided with a transition cavity (131), and the transition cavity (131) is used for forming the transition path (5); the pressure resisting groove (136) is formed in the communicating piece (13), the pressure resisting groove (136) is used for installing the diaphragm piece (2), and a space is reserved between the upper top surface of the diaphragm piece (2) and the bottom of the pressure resisting groove (136).

6. The flow guiding structure for pump according to claim 5, wherein the flow guiding assembly (1) further comprises a second fixing seat (12), and the communicating member (13) is disposed above the second fixing seat (12); the second fixing seat (12) is provided with a mounting cavity (121), the mounting cavity (121) is used for being provided for mounting the diaphragm piece (2), the diaphragm piece (2) comprises a mounting part and an air chamber part, the mounting part is mounted in the pressing groove (136), the air chamber part is mounted in the mounting cavity (121), the second fixing seat (12) is provided with a second exhaust channel (122), and the upper end opening of the second exhaust channel (122) is flush with the upper surface of the air chamber part.

7. The flow guiding structure for pump according to claim 6, wherein the communicating member (13) comprises a first chamber portion (137) and a second chamber portion (138), the opening of the second chamber portion (138) is larger than the opening of the first chamber portion (137), the second chamber portion (138) is disposed at a side of the communicating member (13) close to the second fixing seat (12), and a side of the second chamber portion (138) close to the second fixing seat (12) is disposed parallel to the upper surface of the second fixing seat (12).

8. The diversion structure for pump according to claim 7, wherein the diversion assembly (1) further comprises a first fixing seat (11), the first fixing seat (11) is arranged below the second fixing seat (12), the first fixing seat (11) is provided with a first accommodating cavity (112) and a vent (111), the first fixing seat (11) comprises an air inlet part and a blocking part, the air inlet part is arranged at one side of the first fixing seat (11), the vent (111) is arranged at one side of the air inlet part, the vent (111) is used for external fluid to enter the first accommodating cavity (112), the blocking part is arranged at one side of the vent (111) facing the first accommodating cavity (112), and the length direction of the blocking part extends along the direction close to the second fixing seat (12).

9. The pump diversion structure according to claim 8, wherein the first accommodating cavity (112), the mounting cavity (121) and the transition cavity (131) are sequentially arranged vertically upwards.

10. A pump comprising a pump guide structure according to any one of claims 1-9, and further comprising a pump assembly connected to the pump guide structure, the pump assembly being adapted to drive a change in shape of the diaphragm member (2) and to drive the suction of the fluid introduction path (3).

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