CN215860723U

CN215860723U - Pump body and serial fluid pump comprising same

Info

Publication number: CN215860723U
Application number: CN202121852343.2U
Authority: CN
Inventors: 许清香
Original assignee: Xiamen Keji Precision Equipment Co ltd
Current assignee: Xiamen Keji Precision Equipment Co ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-18
Anticipated expiration: 2031-08-09

Abstract

The application relates to the field of diaphragm pumps, in particular to a pump body which comprises a diaphragm body and a diaphragm seat, wherein the diaphragm body is provided with a suction movable bag and a discharge movable bag; a suction fluid hole and a discharge fluid hole are formed between the suction movable bag and the discharge movable bag, the suction bag cavity is indirectly communicated with the suction fluid hole, and the discharge bag cavity is indirectly communicated with the discharge fluid hole; the diaphragm seat is provided with a communicating groove which communicates the suction fluid hole with the discharge fluid hole. Compare in setting up the fluid groove on the diaphragm body, the mould that needs to set up is more complicated to, set up the fluid groove on the diaphragm body, because the diaphragm body is made by soft material, the position that fluid groove and sack chamber are connected is out of shape easily, results in the output of the pump body unstable, inhales the sack chamber and inhales the indirect intercommunication in fluid hole, discharges the sack chamber and discharges the indirect intercommunication in fluid hole, has effectively reduced the die sinking degree of difficulty of the diaphragm body, and the output of the pump body is more stable.

Description

Pump body and serial fluid pump comprising same

Technical Field

The application relates to the field of diaphragm pumps, in particular to a pump body and a serial fluid pump comprising the same.

Background

The miniature diaphragm pump is a fluid pump with small volume, low noise and good stability, and is widely applied to the industries of chemical metering, environmental protection, printing and the like.

In the related art, the fluid passage of the micro diaphragm pump is generally disposed on the valve seat and the diaphragm body, which is generally made of a soft material. The fluid enters one of the sacs of the diaphragm body through the inflow hole of the valve seat, then enters the valve seat through the fluid groove arranged on the diaphragm body to change the direction and flow to the other sac of the diaphragm body, and then is discharged out of the diaphragm pump from the sacs through the outflow hole of the valve seat.

In view of the above-described technical means, since the diaphragm body is generally made of a soft material, the process of providing the fluid groove in the diaphragm body is complicated, and the manufacturing cost is high.

SUMMERY OF THE UTILITY MODEL

In order to reduce the manufacturing cost of the diaphragm body, the application provides a pump body and a serial fluid pump comprising the pump body.

In a first aspect, the present application provides a pump body, adopt following technical scheme:

a pump body comprises a diaphragm body and a diaphragm seat, wherein the diaphragm body is provided with a suction movable bag and a discharge movable bag, the suction movable bag is provided with a suction bag cavity, and the discharge movable bag is provided with a discharge bag cavity; a suction fluid hole and a discharge fluid hole are formed between the suction movable bag and the discharge movable bag, the suction bag cavity is indirectly communicated with the suction fluid hole, and the discharge bag cavity is indirectly communicated with the discharge fluid hole; the diaphragm seat is provided with a communicating groove which enables the fluid suction hole to be communicated with the fluid discharge hole in a one-way mode.

Through adopting above-mentioned technical scheme, set up suction fluid hole and discharge fluid hole on the diaphragm body, compare in setting up the fluid groove on the diaphragm body, the mould that needs to set up is more complicated, and, set up the fluid groove on the diaphragm body, because the diaphragm body is made by soft material, the position that fluid groove and sack chamber are connected appears warping easily, the output that leads to the pump body is unstable, in this technical scheme, suction sack chamber and suction fluid hole communicate indirectly, discharge sack chamber and discharge fluid hole communicate indirectly, the die sinking degree of difficulty of the diaphragm body has effectively been reduced, and the output of the pump body is more stable.

Optionally, the diaphragm body is mounted on the diaphragm seat, an isolation boss is arranged on one side of the diaphragm body, which is far away from the diaphragm seat, and the isolation boss isolates the suction bag cavity, the suction fluid hole, the discharge bag cavity and the discharge fluid hole from each other.

Through adopting above-mentioned technical scheme, keep apart the boss and can keep apart each other suction bag chamber, suction fluid hole, discharge bag chamber, discharge fluid hole to improve the problem that the position that fluid tank and bag chamber are connected appears warping easily, so that the output of the pump body is more stable, and can also increase the sealing performance of the diaphragm body.

Optionally, a communicating sealing convex ring is arranged on one side of the diaphragm seat facing the diaphragm body, and the communicating sealing convex ring is arranged around the opening end face of the communicating groove.

Through adopting above-mentioned technical scheme, the sealed bulge loop of intercommunication sets up around the opening terminal surface of intercommunication groove to make the sealed bulge loop of intercommunication enclose the intercommunication groove and close, at the in-process of diaphragm seat and the installation of the diaphragm body, the sealed bulge loop of intercommunication can be with the diaphragm body extrusion deformation, thereby increases the sealing performance between the diaphragm body and the diaphragm seat.

Optionally, the hole wall of the fluid discharge hole is provided with a one-way valve plate for controlling the one-way flow of the fluid in the communicating groove and the fluid discharge hole along the working direction, and the one-way valve plate is attached to the end face of the communicating groove close to the diaphragm body.

Through adopting above-mentioned technical scheme, the terminal surface laminating that one-way valve block and intercommunication groove on the diaphragm body are close to the diaphragm body place increases a one-way structure of adjusting on the passageway between suction fluid hole and discharge fluid hole to improve whole fluid passage's non return and antiseep function, thereby guarantee when increasing the output of this pump body, whole fluid passage's non return ability is stronger, thereby guarantees that the fluid output of this pump body is more stable.

Optionally, the check valve piece has connecting portion and the portion of opening and close, and the connecting portion and the diaphragm body integrated into one piece of check valve piece, the portion of opening and close of check valve piece and the pore wall in discharge fluid hole have the clearance.

Through adopting above-mentioned technical scheme, the connecting portion and the diaphragm body integrated into one piece of check valve block, it is easier from the angle of making, compare in one check valve block of installation on the discharge fluid hole at the diaphragm body, the required structure of installation check valve block can make the diaphragm body need design more complicatedly, limited and the volume of the diaphragm body and the material of the diaphragm body, in order to reduce the manufacturing cost of the diaphragm body, check valve block and diaphragm body integrated into one piece have better economic nature and practicality. The opening and closing part has a clearance with the pore wall of the discharge fluid pore to make the one-way valve plate have a certain deformation space, so that the fluid can pass through from the discharge fluid pore.

Optionally, one side that the diaphragm seat is close to the diaphragm body place is provided with anti-sticking groove, and anti-sticking groove aligns with the portion of opening and close, and anti-sticking groove is located the diaphragm seat and is close to the terminal surface at one-way valve block place.

Through adopting above-mentioned technical scheme, because some fluids have viscidity, drawing movable bag shrink, the in-process of the expansion of discharge activity bag, certain resistance can appear when the fluid pushes away the one-way valve block from the intercommunication groove, through being provided with at the diaphragm seat near one side at diaphragm body place and preventing the viscous groove, the contact area of one-way valve block and diaphragm seat can be reduced to the groove that prevents viscous to reduce the viscous force that the one-way valve block received, improve the fluid output stability of this pump body.

Optionally, a driving mounting column is arranged on one side of the suction movable bag and the discharge movable bag close to the diaphragm seat, and an anti-dropping boss is arranged on one side of the driving mounting column far away from the diaphragm body.

Through adopting above-mentioned technical scheme, the drive erection column can be installed on actuating mechanism to make actuating mechanism can drive inhales movable bag and the operation of discharge movable bag, thereby provide power for the fluid operation. The anti-drop boss can improve the problem that the drive mounting column breaks away from the drive mechanism, thereby improving the operation stability of the pump body.

In a second aspect, the present application provides a serial fluid pump, which adopts the following technical solutions:

the utility model provides a serial-type fluid pump, contains foretell a pump body, and this serial-type fluid pump still includes pump cover, disk seat and is used for driving pump body moving actuating mechanism, and actuating mechanism sets up in the bottom of the pump body, and the disk seat sets up in the top of the pump body, and the pump cover sets up in the terminal surface that the pump body place was kept away from to the disk seat.

By adopting the technical scheme, the serial fluid pump comprises the pump body, the driving mechanism can drive the pump body to operate, and the cross section area of the channel of the fluid channel is not easy to change in the operation process of the serial fluid pump, so that the stable fluid output of the pump body is ensured. And the diaphragm is limited by the size of the diaphragm body, so that the structure of the diaphragm body is simplified, and the die sinking cost of the diaphragm body is reduced.

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

1. set up suction fluid hole and discharge fluid hole on the diaphragm body, compare in setting up the fluid groove on the diaphragm body, inhale the cyst chamber and inhale fluid hole indirect intercommunication, discharge cyst chamber and discharge fluid hole indirect intercommunication have effectively reduced the die sinking degree of difficulty of the diaphragm body to the output of the pump body is more stable.

2. The serial fluid pump comprising the pump body has the advantages that the situation that the cross section area of the fluid channel is not easy to change in the operation process, so that the fluid output stability of the pump body is ensured. And the diaphragm is limited by the size of the diaphragm body, so that the structure of the diaphragm body is simplified, and the die sinking cost of the diaphragm body is reduced.

Drawings

FIG. 1 is a schematic cross-sectional view of an in-line fluid pump in an embodiment of the present application;

FIG. 2 is an exploded view of the drive mechanism in an embodiment of the present application;

FIG. 3 is a schematic view of the valve seat, diaphragm body and diaphragm seat mounting arrangement of an embodiment of the present application;

FIG. 4 is a top view of a diaphragm body in an embodiment of the present application;

fig. 5 is a schematic structural view of a valve seat in an embodiment of the present application.

Description of reference numerals:

1. a pump cover; 11. a fluid intake nozzle; 12. a fluid discharge nozzle; 13. a gasket; 2. a valve seat; 21. a suction fluid channel; 22. a discharge fluid channel; 23. a suction check valve; 24. a discharge check valve; 3. a pump body; 31. a diaphragm body; 311. an inhalation movable bag; 3111. an inhalation capsule; 312. discharging the movable bag; 3121. discharging the capsule cavity; 313. a suction fluid hole; 314. a discharge fluid aperture; 315. a one-way valve plate; 3151. a connecting portion; 3152. an opening and closing part; 316. isolating the boss; 318. a drive mounting post; 3181. the anti-falling boss; 32. a diaphragm seat; 321. a communicating groove; 322. an anti-sticking slot; 323. the sealing convex ring is communicated; 4. a drive mechanism; 41. a base; 42. a drive motor; 43. an eccentric wheel; 44. a steel needle; 45. a connecting rod; 451. a drive mounting hole; 5. and (5) buckling.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a pump body and a serial fluid pump comprising the pump body 3. Referring to fig. 1, a serial-type fluid pump, includes pump cover 1, disk seat 2, the pump body 3 and is used for the drive 3 moving actuating mechanism 4 of the pump body, actuating mechanism 4 are used for providing operation power for the pump body 3, and actuating mechanism 4 sets up in the bottom of the pump body 3, and disk seat 2 sets up in the top of the pump body 3, and pump cover 1 sets up in the top of disk seat 2. The driving mechanism 4 is buckled with the pump cover 1, the valve seat 2 and the pump body 3 through a buckle 5.

Referring to fig. 2, the driving mechanism 4 includes a base 41, a driving motor 42, an eccentric 43, a steel needle 44 and a connecting rod 45, the base 41 is mounted at the bottom of the pump body 3, the driving motor 42 is mounted at the lower end surface of the base 41, the eccentric 43 is mounted on the output shaft of the driving motor 42, one end of the steel needle 44 is rotatably connected with the eccentric 43, and the other end of the steel needle 44 is rotatably connected with the connecting rod 45. The central axis of the needle 44 is at an angle to the central axis of the eccentric 43, which in this embodiment is 8 °. The steel needle 44 is mounted at the bottom of the connecting rod 45, the connecting rod 45 is arranged in a T shape, and two driving mounting holes 451 are formed at the top end of the connecting rod 45.

Referring to fig. 1 and 3, the pump body 3 includes a diaphragm body 31 and a diaphragm seat 32, and the diaphragm seat 32 is installed below the diaphragm body 31. In the present embodiment, the diaphragm body 31 is made of a soft rubber material and has elasticity. The diaphragm body 31 has a suction activity bag 311 and a discharge activity bag 312, the suction activity bag 311 has a suction bag cavity 3111, the discharge activity bag 312 has a discharge bag cavity 3121, and the suction activity bag 311 and the discharge activity bag 312 are elastically deformable when pressed, thereby squeezing out the fluid in the suction bag cavity 3111 and the discharge bag cavity 3121. The suction activity bag 311 and the discharge activity bag 312 are provided at the bottom thereof with a driving mounting column 318, and the bottom of the driving mounting column 318 is provided with a retaining boss 3181. Drive mounting hole 451 on connecting rod 45 corresponds to drive mounting post 318 one-to-one, and drive mounting post 318 and drive mounting hole 451 joint cooperation, anticreep boss 3181 and the bottom butt of drive mounting hole 451 to make drive mounting post 318 can not break away from in drive mounting hole 451.

Referring to fig. 3, the diaphragm seat 32 is substantially rectangular, two receiving holes for receiving the suction movable bag 311 and the discharge movable bag 312 are provided on the upper surface of the diaphragm seat 32, a communication groove 321 is provided between the two receiving holes, the communication groove 321 is used for communicating the suction fluid hole 313 and the discharge fluid hole 314, and the communication groove 321 is a long kidney-shaped groove.

Referring to fig. 4, a suction fluid hole 313 and a discharge fluid hole 314 are formed between the suction movable bag 311 and the discharge movable bag 312, the suction fluid hole 313 is formed in a cylindrical shape, a horizontal cross-sectional area of the discharge fluid hole 314 is formed in an irregular circular shape, and a check valve plate 315 is integrally formed at a hole wall of the discharge fluid hole 314. The check valve plate 315 includes a connection portion 3151 and an opening/closing portion 3152, the connection portion 3151 and the diaphragm body 31 are integrally formed, and a gap exists between the opening/closing portion 3152 and a hole wall of the discharge fluid hole 314, so that the check valve plate 315 can be pushed by fluid.

Referring to fig. 3 and 4, in order to increase the sealing performance of the diaphragm body 31, the upper surface of the diaphragm body 31 is provided with a separation boss 316, and the separation boss 316 separates the suction pocket 3111, the discharge pocket 3121, the suction fluid hole 313, and the discharge fluid hole 314 from each other. The upper end surface of the diaphragm seat 32 is provided with a communicating sealing convex ring 323, the communicating sealing convex ring 323 is arranged around the opening end surface of the communicating groove 321, the communicating sealing convex ring 323 surrounds the communicating groove 321, and after the diaphragm body 31 and the diaphragm seat 32 are installed, the communicating sealing convex ring 323 can be pressed on the diaphragm body 31, so that the connecting position of the diaphragm seat 32 and the diaphragm body 31 forms sealing.

Referring to fig. 3, the check valve plate 315 is attached to an upper end surface of the communication groove 321 on a side close to the discharge fluid hole 314, so as to ensure that the check valve plate 315 can control the communication groove 321 and the fluid in the discharge fluid hole 314 to flow in a single direction along the working direction. The operation direction of the tandem pump body 3 in this embodiment refers to a direction in which the fluid flows from the suction movable bladder 311 to the discharge movable bladder 312. The diaphragm seat 32 is provided with an anti-sticking groove 322 at a position where the one-way valve plate 315 and the communicating groove 321 are attached to each other, and the anti-sticking groove 322 can improve the condition that the one-way valve plate 315 is bonded with the upper end surface of the communicating groove 321, thereby improving the operation stability of the series pump body 3.

Referring to fig. 3 and 5, the valve seat 2 is provided in a substantially rectangular parallelepiped shape, the valve seat 2 is mounted above the diaphragm body 31, the valve seat 2 is provided with a suction fluid passage 21 and a discharge fluid passage 22, the suction fluid passage 21 communicates the suction pocket 3111 with the suction fluid hole 313, and the discharge fluid passage 22 communicates the discharge pocket 3121 with the discharge fluid hole 314. The valve seat 2 is further provided with a suction check valve 23 and a discharge check valve 24, the suction check valve 23 is located below the suction fluid passage 21, the discharge check valve 24 is located above the discharge fluid passage 22, and the suction check valve 23 and the discharge check valve 24 are both used for controlling the fluid to flow along the working direction.

Referring to fig. 1, a pump cover 1 is generally rectangular, the pump cover 1 is installed above a valve seat 2, a fluid suction nozzle 11 and a fluid discharge nozzle 12 are arranged on the pump cover 1, and both the fluid suction nozzle 11 and the fluid discharge nozzle 12 are used for connecting a pipeline. In order to increase the sealing performance between the pump cover 1 and the valve seat 2, a sealing gasket 13 is arranged between the pump cover 1 and the valve seat 2, the sealing gasket 13 seals the joint of the suction fluid channel 21 and the fluid suction nozzle 11, and the sealing gasket 13 also seals the joint of the discharge fluid channel 22 and the fluid discharge nozzle 12.

The implementation principle of a serial fluid pump in the embodiment of the present application is as follows: the driving motor 42 drives the eccentric wheel 43 to rotate, and the steel needle 44 obliquely arranged on the eccentric wheel 43 drives the connecting rod 45 to move, so that the driving mounting post 318 arranged on the connecting rod 45 drives the diaphragm body 31 to move periodically. The suction movable bag 311 expands, negative pressure is formed in the suction bag cavity 3111, and fluid enters the suction bag cavity 3111 through the fluid suction nozzle 11; the suction movable bag 311 is contracted, the discharge movable bag 312 is expanded, and the suction check valve 23 installed on the valve seat 2 unidirectionally closes the suction fluid passage 21 so that the fluid is pressed into the suction fluid hole 313, and the fluid passes through the communication groove 321 into the discharge fluid hole 314. The one-way valve plate 315 is attached to the upper end surface of the communication groove 321 on the side close to the discharge fluid hole 314, so that the one-way valve plate 315 can control the one-way flow of the fluid in the communication groove 321 and the discharge fluid hole 314 along the working direction. The fluid enters the exhaust bag cavity 3121 through the exhaust fluid passage 22, the suction movable bag 311 expands, the exhaust movable bag 312 contracts, and the exhaust check valve 24 is mounted on the upper surface of the valve seat 2, so that the exhaust check valve 24 can only allow the fluid to enter the fluid exhaust nozzle 12 from the exhaust bag cavity 3121, and the exhaust movable bag 312 exhausts the fluid from the fluid exhaust nozzle 12, thereby realizing the function of one-way fluid delivery.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereby. Wherein like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pump body, characterized by comprising a diaphragm body (31) and a diaphragm seat (32), the diaphragm body (31) having a suction movable bag (311) and a discharge movable bag (312), the suction movable bag (311) having a suction bag cavity (3111), the discharge movable bag (312) having a discharge bag cavity (3121); an inhalation fluid hole (313) and an exhaust fluid hole (314) are arranged between the inhalation active bag (311) and the exhaust active bag (312), the inhalation bag cavity (3111) is indirectly communicated with the inhalation fluid hole (313), and the exhaust bag cavity (3121) is indirectly communicated with the exhaust fluid hole (314); the diaphragm seat (32) is provided with a communication groove (321), and the communication groove (321) enables the suction fluid hole (313) and the discharge fluid hole (314) to be communicated in a one-way mode.

2. A pump body according to claim 1, wherein the diaphragm body (31) is mounted on the diaphragm seat (32), and a side of the diaphragm body (31) remote from the diaphragm seat (32) is provided with a separation boss (316), the separation boss (316) separating the suction pocket (3111), the suction fluid hole (313), the discharge pocket (3121), and the discharge fluid hole (314) from each other.

3. A pump body according to claim 2, wherein a side of the diaphragm seat (32) facing the diaphragm body (31) is provided with a communication seal bead (323), the communication seal bead (323) being provided around an opening end face of the communication groove (321).

4. The pump body according to claim 2, wherein the hole wall of the discharge fluid hole (314) is provided with a check valve plate (315) for controlling the communication groove (321) and the fluid in the discharge fluid hole (314) to flow in a one-way mode along the working direction, and the check valve plate (315) is attached to the end face of the communication groove (321) close to the diaphragm body (31).

5. The pump body according to claim 4, wherein the check valve plate (315) has a connecting portion (3151) and an opening/closing portion (3152), the connecting portion (3151) of the check valve plate (315) is integrally formed with the diaphragm body (31), and a gap exists between the opening/closing portion (3152) of the check valve plate (315) and a hole wall of the discharge fluid hole (314).

6. The pump body according to claim 5, wherein an anti-sticking groove (322) is formed in one side, close to the diaphragm body (31), of the diaphragm seat (32), the anti-sticking groove (322) is aligned with the opening and closing portion (3152), and the anti-sticking groove (322) is located in an end face, close to the one-way valve sheet (315), of the diaphragm seat (32).

7. The pump body according to claim 1, wherein a driving mounting column (318) is arranged on the side of the suction movable bag (311) and the discharge movable bag (312) close to the diaphragm seat (32), and a retaining boss (3181) is arranged on the side of the driving mounting column (318) far away from the diaphragm body (31).

8. An in-line fluid pump comprising a pump body according to any one of claims 1 to 7, further comprising a pump cover (1), a valve seat (2), and a driving mechanism (4) for driving the pump body (3) to operate, wherein the driving mechanism (4) is disposed at the bottom end of the pump body (3), the valve seat (2) is disposed at the top end of the pump body (3), and the pump cover (1) is disposed at the end surface of the valve seat (2) away from the pump body (3).