CN212004144U - Transmission structure of diaphragm pump - Google Patents
Transmission structure of diaphragm pump Download PDFInfo
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- CN212004144U CN212004144U CN202020080694.5U CN202020080694U CN212004144U CN 212004144 U CN212004144 U CN 212004144U CN 202020080694 U CN202020080694 U CN 202020080694U CN 212004144 U CN212004144 U CN 212004144U
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Abstract
The utility model discloses a transmission structure of a diaphragm pump, which comprises an upper shell, a lower shell, a deflection piece arranged in the upper shell, a motor arranged in the lower shell and a transmission assembly arranged between the deflection piece and the motor; the transmission assembly comprises a bearing arranged in the upper shell, a first connecting piece which penetrates through the bearing in a rotating mode, a second connecting piece which is connected with the first connecting piece in a telescopic mode, an elastic piece arranged between the first connecting piece and the second connecting piece, and a third connecting piece arranged on the motor, wherein the first connecting piece is eccentrically provided with a movable hole for the deflection piece to be matched movably, and the second connecting piece is meshed with the third connecting piece. The utility model discloses a set up drive assembly between motor and the piece that deflects, it is rotatory to drive the third connecting piece by the motor, links second connecting piece, first connecting piece and the piece that deflects in proper order, because of third connecting piece and the meshing of second connecting piece, the flexible cooperation of second connecting piece and first connecting piece, it is fairly convenient on the dismouting, only need accomplish the assembly of epitheca and inferior valve can to simple structure, low in production cost.
Description
Technical Field
The utility model relates to a pump field especially indicates a drive structure of diaphragm pump.
Background
The diaphragm pump is a common pump in the medical field, and mainly comprises a pump main body with a plurality of inlet holes, an air bag assembly with a plurality of air bags arranged eccentrically, a one-way check valve arranged corresponding to each air bag, a deflection piece connected with the air bag assembly, a motor and an eccentric wheel for driving the deflection piece to rotate, wherein the air bags are connected with the inlet holes in a one-to-one correspondence manner, the one-way check valves are respectively arranged at the inlet holes, the motor drives the eccentric wheel to rotate to drive the deflection piece to rotate, so that the air bags are discontinuously pressed one by one and then released, pressure difference is caused, fluid enters the air bags through the one-way check valves and then is discharged by the pump main body, and the function of extracting.
The existing diaphragm pump motor is directly connected with an eccentric wheel, and a tight-fit clamping mode is usually adopted, so that the diaphragm pump motor is difficult to disassemble and assemble, wastes time and labor, and does not meet the requirement of quickly, simply and conveniently replacing a valve body in the field of medical equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drive assembly of diaphragm pump realizes that the motor of diaphragm pump is connected with a transmission that deflects, and simple structure, make things convenient for the dismouting.
In order to achieve the above purpose, the solution of the present invention is:
a transmission structure of a diaphragm pump comprises an upper shell and a lower shell which are detachably matched, a deflection piece arranged in the upper shell, a motor arranged in the lower shell, and a transmission assembly arranged between the deflection piece and the motor; the transmission assembly comprises a bearing arranged in the upper shell, a first connecting piece which penetrates through the bearing in a rotating mode, a second connecting piece which is connected with the first connecting piece in a telescopic mode, an elastic piece arranged between the first connecting piece and the second connecting piece, and a third connecting piece arranged on a rotating shaft of the motor, wherein a movable hole for enabling a connecting rod of the deflection piece to be matched movably is formed in one end, facing the deflection piece, of the first connecting piece in an eccentric mode, and one end, facing the motor, of the second connecting piece is meshed with the third connecting piece.
The first connecting piece faces one end of the motor and is provided with a movable cavity, the second connecting piece is provided with a protruding portion movably matched in the movable cavity, and the elastic piece is arranged between the movable cavity and the protruding portion.
The side wall of the movable cavity is provided with a hook groove, the periphery of the protruding part is provided with a hook part, and the hook part is movably matched in the hook groove so as to limit the relative rotation of the first connecting piece and the second connecting piece; the width of the hook groove allows the hook part to move in the axial direction of the first connecting piece.
The tip of second connecting piece is provided with a plurality of first rodents, the tip of third connecting piece is provided with a plurality of second rodents.
The elastic piece is a compression spring.
The first connecting piece comprises an eccentric part, a connecting body and a connecting part, wherein two ends of the connecting part are respectively connected with the eccentric part and the connecting body, the movable hole is formed in the eccentric part, and the movable cavity is formed in the connecting body.
The eccentric part, the connecting body and the connecting part are designed in a split mode, and the connecting part is made of metal materials.
The upper shell is matched with the lower shell in a rotating and clamping manner.
The periphery of the lower end of the upper shell is provided with a plurality of clamping blocks, and the inner wall of the upper end of the lower shell is provided with a plurality of clamping grooves which are correspondingly provided with clamping interfaces and are arranged with the clamping blocks.
After the technical scheme is adopted, the utility model discloses a set up drive assembly between motor and deflection piece, it is rotatory to drive the third connecting piece by the motor, links second connecting piece, first connecting piece and deflection piece in proper order, because the third connecting piece takes the engaged fit mode with the second connecting piece, and the flexible cooperation of second connecting piece and first connecting piece, fairly convenient on the dismouting, only need accomplish the assembly of epitheca and inferior valve can to simple structure, low in production cost.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a side view of an embodiment of the present invention;
FIG. 3 is a first top view of an embodiment of the present invention;
FIG. 4 is a second top view of an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 6 is a sectional view in an exploded state in the direction B-B of FIG. 3;
FIG. 7 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 8 is a perspective view of an embodiment of the present invention;
FIG. 9 is an exploded view of a transmission assembly according to an embodiment of the present invention;
the reference numbers illustrate: an upper case 10; a latch 11; a lower case 20; a card slot 21; a card interface 211; a deflector 30; a connecting rod 31; a motor 40; a transmission assembly 50; a bearing 51; a first connecting member 52; an eccentric portion 521; a movable hole 5211; a connecting body 522; a movable chamber 5221; hook grooves 5222; a connecting portion 523; the second connecting member 53; a projection 531; a hook portion 5311; a first rodent 532; an elastic member 54; a third connecting member 55; a second rodent 551.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
The utility model relates to a transmission structure of diaphragm pump, including can dismantling complex epitheca 10 and inferior valve 20, set up the piece 30 that deflects in epitheca 10, set up motor 40 in inferior valve 20, set up the transmission assembly 50 between the piece 30 and the motor 40 that deflects.
The transmission assembly 50 includes a bearing 51 installed in the upper housing 10, a first connecting member 52 rotatably penetrating the bearing 51, a second connecting member 53 telescopically connected to the first connecting member 52, an elastic member 54 disposed between the first connecting member 52 and the second connecting member 53, and a third connecting member 55 installed on the rotating shaft of the motor 40, wherein an end of the first connecting member 52 facing the deflector 30 is eccentrically provided with a moving hole 5211 for movably engaging the link 31 of the deflector 30, and an end of the second connecting member 53 facing the motor 40 is engaged with the third connecting member 55.
Referring to fig. 1-9, a specific embodiment of the present invention is shown.
The first connecting member 52 has a movable chamber 5221 formed at an end facing the motor 40, the second connecting member 53 has a protrusion 531 movably fitted in the movable chamber 5221, and the elastic member 54 is disposed between the movable chamber 5221 and the protrusion 531.
The side wall of the movable cavity 5221 is provided with a hook groove 5222, the periphery of the protrusion 531 is provided with a hook portion 5311, and the hook portion 5311 is movably fitted in the hook groove 5222 to limit the relative rotation of the first connecting member 52 and the second connecting member 53, and prevent the second connecting member 53 from falling off from the first connecting member 52, which is more convenient to install. The width of the hook groove 5222 allows the hook portion 5311 to move therein along the axial direction of the first connecting member 52, so that the second connecting member 53 can perform a telescopic motion relative to the first connecting member 52 under the action of the elastic member 54, and the assembly can be buffered, thereby facilitating the installation.
The end of the second connector 53 is provided with a plurality of first teeth 532 and the end of the third connector 55 is provided with a plurality of second teeth 551, so as to achieve the engagement of the second connector 53 with the third connector 55.
The elastic member 54 is a compression spring.
The first connecting member 52 includes an eccentric portion 521, a connecting body 522, and a connecting portion 523 having two ends respectively connected to the eccentric portion 521 and the connecting body 522, wherein a movable hole 5211 is formed in the eccentric portion 521, and a movable chamber 5221 is formed in the connecting body 522.
The eccentric portion 521, the connecting body 522 and the connecting portion 523 are separately designed, and the connecting portion 523 is made of a metal material, so as to improve the strength of the first connecting member 52.
The upper shell 10 is matched with the lower shell 20 in a rotating and clamping manner; the periphery of the lower end of the upper shell 10 is provided with a plurality of clamping blocks 11, the inner wall of the upper end of the lower shell 20 is provided with a plurality of clamping grooves 21 which are arranged corresponding to the clamping blocks 11 and are provided with clamping interfaces 211, and the clamping blocks 11 can enter the clamping grooves 21 through the clamping interfaces 211 and can be assembled by relatively rotating the upper shell 10 and the lower shell 20.
The utility model discloses when the installation, earlier install bearing 51 in epitheca 10, nevertheless pass bearing 51 after installing first connecting piece 52 and second connecting piece 53 and be connected with deflection piece 30, adorn motor 40 with third connecting piece 55 again on, put epitheca 10 and first connecting piece 52, second connecting piece 53 cover on inferior valve 20 at last to rotatory chucking accomplishes quick installation. Due to the engaging relationship between the second connecting member 53 and the third connecting member 55 and the flexibility of the elastic member 54, no matter whether the second connecting member 53 and the third connecting member 55 are completely engaged during installation, the elastic member 54 can push the second connecting member 53 to engage with the third connecting member 55 after the motor 40 drives the third connecting member 55 to rotate.
Through the structure, the utility model discloses a set up drive assembly 50 between motor 40 and deflection piece 30, it is rotatory to drive third connecting piece 55 by motor 40, link up second connecting piece 53 in proper order, first connecting piece 52 and deflection piece 30, because third connecting piece 55 and second connecting piece 53 take the engaged fit mode, and second connecting piece 53 and the flexible cooperation of first connecting piece 52, it is fairly convenient on the dismouting, only need accomplish the assembly of epitheca 10 and inferior valve 20 can, and simple structure, low in production cost.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (9)
1. A transmission structure of a diaphragm pump is characterized in that: the device comprises an upper shell and a lower shell which are detachably matched, a deflection piece arranged in the upper shell, a motor arranged in the lower shell and a transmission assembly arranged between the deflection piece and the motor;
the transmission assembly comprises a bearing arranged in the upper shell, a first connecting piece which penetrates through the bearing in a rotating mode, a second connecting piece which is connected with the first connecting piece in a telescopic mode, an elastic piece arranged between the first connecting piece and the second connecting piece, and a third connecting piece arranged on a rotating shaft of the motor, wherein a movable hole for enabling a connecting rod of the deflection piece to be matched movably is formed in one end, facing the deflection piece, of the first connecting piece in an eccentric mode, and one end, facing the motor, of the second connecting piece is meshed with the third connecting piece.
2. A driving structure of a diaphragm pump according to claim 1, wherein:
the first connecting piece faces one end of the motor and is provided with a movable cavity, the second connecting piece is provided with a protruding portion movably matched in the movable cavity, and the elastic piece is arranged between the movable cavity and the protruding portion.
3. A driving structure of a diaphragm pump according to claim 2, wherein:
the side wall of the movable cavity is provided with a hook groove, the periphery of the protruding part is provided with a hook part, and the hook part is movably matched in the hook groove so as to limit the relative rotation of the first connecting piece and the second connecting piece; the width of the hook groove allows the hook part to move in the axial direction of the first connecting piece.
4. A driving structure of a diaphragm pump according to claim 1, wherein:
the tip of second connecting piece is provided with a plurality of first rodents, the tip of third connecting piece is provided with a plurality of second rodents.
5. A driving structure of a diaphragm pump according to claim 1, wherein:
the elastic piece is a compression spring.
6. A driving structure of a diaphragm pump according to claim 1, wherein:
the first connecting piece comprises an eccentric part, a connecting body and a connecting part, wherein two ends of the connecting part are respectively connected with the eccentric part and the connecting body, the movable hole is formed in the eccentric part, and the movable cavity is formed in the connecting body.
7. A driving structure of a diaphragm pump according to claim 6, wherein:
the eccentric part, the connecting body and the connecting part are designed in a split mode, and the connecting part is made of metal materials.
8. A driving structure of a diaphragm pump according to claim 1, wherein:
the upper shell is matched with the lower shell in a rotating and clamping manner.
9. A driving structure of a diaphragm pump according to claim 8, wherein:
the periphery of the lower end of the upper shell is provided with a plurality of clamping blocks, and the inner wall of the upper end of the lower shell is provided with a plurality of clamping grooves which are correspondingly provided with clamping interfaces and are arranged with the clamping blocks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020080694.5U CN212004144U (en) | 2020-01-15 | 2020-01-15 | Transmission structure of diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020080694.5U CN212004144U (en) | 2020-01-15 | 2020-01-15 | Transmission structure of diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212004144U true CN212004144U (en) | 2020-11-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020080694.5U Active CN212004144U (en) | 2020-01-15 | 2020-01-15 | Transmission structure of diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212004144U (en) |
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2020
- 2020-01-15 CN CN202020080694.5U patent/CN212004144U/en active Active
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