CN208831252U - A kind of portable direct current electric pump - Google Patents
A kind of portable direct current electric pump Download PDFInfo
- Publication number
- CN208831252U CN208831252U CN201821475691.0U CN201821475691U CN208831252U CN 208831252 U CN208831252 U CN 208831252U CN 201821475691 U CN201821475691 U CN 201821475691U CN 208831252 U CN208831252 U CN 208831252U
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- pump body
- output shaft
- driving motor
- sealing sheet
- limiting sleeve
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- 238000007789 sealing Methods 0.000 claims description 84
- 239000007788 liquid Substances 0.000 claims description 76
- 238000000034 method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model discloses a kind of portable direct current electric pumps, including the pump housing and driving motor, the blade of pump body is fixedly connected with the output shaft of driving motor, and the pump housing is opened up close to one end of driving motor there are also the movable span passed through for output shaft, and the internal diameter of movable span is greater than output shaft diameter；Interior diaphragm seal and external seal piece are rotatably connected on output shaft, interior diaphragm seal and external seal piece are mutually compressed with the inner and outer wall of the pump housing respectively to be sealed against, pump housing inner wall is dome shape, interior diaphragm seal is dome shape close to the one side of movable span, movable span is equipped with spherical seal surface close to an end margin of external seal piece, external seal piece is spherical surface close to the one side of the pump housing, the pump housing is rotatablely connected by interior diaphragm seal and external seal piece and output shaft, the pump housing can be rotated relative to the casing of driving motor towards any direction, to adjust the direction of inlet tube and outlet tube, convenient for mutually staggering inlet tube and outlet tube with other objects in installation space, it is connected to external pipe normally on inlet tube and outlet tube.
Description
Technical Field
The utility model relates to a fluid transport technical field, concretely relates to portable direct current motor pump.
Background
The oil pump is a device for carrying fluid, generally including the pump body and driving motor, driving motor's output shaft and the inside blade looks fixed connection of the pump body, be equipped with inlet and liquid outlet on the pump body, the distance between inlet and the blade axis of revolution is less than the distance between liquid outlet and the blade axis of revolution, driving motor moves, the blade circulates through inlet and liquid outlet and produces the hydraulic pressure difference at inlet and liquid outlet, the hydraulic pressure of inlet department is less than the hydraulic pressure of liquid outlet department, make the inlet continuously inhale fluid, the liquid outlet continuously outputs fluid.
Drive motor is fixed mounting usually on the installation station, and the pump body is with drive motor's casing looks fixed connection, and the orientation of inlet and liquid outlet can't change, in the narrow and small installation operating mode in space, has other object looks butt in inlet and/or liquid outlet and the installation space, leads to inlet and/or liquid outlet can't be connected with external pipeline normally.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a portable direct current motor pump, but relative rotation is in order to lap the orientation of inlet and liquid outlet between the casing of the pump body and driving motor, and the inlet and liquid outlet and external pipeline of being convenient for are connected.
In order to achieve the above object, the embodiment of the present invention provides:
a portable direct current electric pump comprises a driving motor and a pump body, wherein blades are arranged in the pump body and fixedly connected with an output shaft of the driving motor, and a liquid inlet pipe and a liquid outlet pipe are fixedly connected to the pump body;
the pump body is provided with a liquid inlet at the position corresponding to the liquid inlet pipe, and the liquid inlet pipe is communicated with the inner space of the pump body through the liquid inlet;
the pump body is provided with a liquid outlet at the position corresponding to the liquid outlet pipe, and the liquid outlet pipe is communicated with the inner space of the pump body through the liquid outlet;
the liquid inlet and the liquid outlet are respectively positioned at two sides of the rotating central axis of the blade, and the distance between the liquid inlet and the rotating central axis of the blade is smaller than the distance between the liquid outlet and the rotating central axis of the blade;
the vanes are arc-shaped, and the inner wall of the pump body is spherical;
one end of the pump body close to the driving motor is provided with a movable hole for the output shaft to pass through, and the diameter of the inner wall of the movable hole is larger than that of the output shaft;
the output shaft is rotatably connected with an inner sealing sheet and an outer sealing sheet, the inner sealing sheet is positioned in the pump body, the outer sealing sheet is positioned on the outer side of the pump body, and the outer sealing sheet and the inner sealing sheet respectively seal two ends of the movable hole;
the edge of one end of the movable hole close to the driving motor is provided with a spherical sealing surface, one surface of the outer sealing sheet close to the pump body is spherical, and one surface of the outer sealing sheet close to the pump body is in sealing sliding connection with the spherical sealing surface;
the surface of the inner sealing sheet close to the movable hole is spherical, and the surface of the inner sealing sheet close to the movable hole is in sealing sliding connection with the inner wall of the pump body.
The embodiment of the utility model provides a further setting up to: the output shaft is rotatably connected with an outer limiting sleeve, the outer limiting sleeve is located between the outer sealing sheet and the driving motor, one end of the outer limiting sleeve is abutted to the outer sealing sheet, and the other end of the outer limiting sleeve is abutted to the shell of the driving motor.
The embodiment of the utility model provides a further setting up to: an outer thrust bearing is sleeved on the output shaft and located between the outer limiting sleeve and the shell of the driving motor, and two ends of the outer thrust bearing are respectively abutted to the shell of the driving motor and the outer limiting sleeve.
The embodiment of the utility model provides a further setting up to: one end of the output shaft, which is positioned in the pump body, is fixedly connected with a fixed block, the fixed block is spherical, and the blades are fixedly connected with the outer surface of the fixed block; an inner limiting sleeve is rotatably connected to the output shaft and located between the inner sealing piece and the fixing block, one end of the inner limiting sleeve is abutted to the inner sealing piece, and the other end of the inner limiting sleeve is abutted to the fixing block.
The embodiment of the utility model provides a further setting up to: an inner thrust bearing is sleeved on the output shaft and located between the inner limiting sleeve and the fixed block, and two ends of the inner thrust bearing are respectively abutted to the fixed block and the inner limiting sleeve.
The embodiment of the utility model provides a further setting up to: and an outer sliding bearing is fixedly connected to a matching surface of the outer sealing piece and the output shaft in a rotating connection, and the outer sliding bearing is in a sealing and rotating connection with the output shaft.
The embodiment of the utility model provides a further setting up to: the outer sealing sheet has elasticity.
The embodiment of the utility model provides a further setting up to: and an inner sliding bearing is fixedly connected to a matching surface of the inner sealing piece and the output shaft in a rotating connection, and the inner sliding bearing is in sealed rotating connection with the output shaft.
The embodiment of the utility model provides a further setting up to: the inner sealing sheet has elasticity.
The embodiment of the utility model provides a further setting up to: the pump body is divided into two parts by taking a plane passing through the center of the inner wall of the pump body as a section, and the two parts of the pump body are detachably and fixedly connected.
The embodiment of the utility model provides a have following advantage:
1. the pump body and the shell of the driving motor can rotate relatively, so that the orientation of the liquid inlet and the liquid outlet can be conveniently adjusted, the liquid inlet and the liquid outlet can rotate to be mutually staggered with other objects in the installation space, the liquid inlet and the liquid outlet can be conveniently connected with an external pipeline, and the pump is suitable for the working condition of a narrow installation space;
2. the blades are arc-shaped, the inner wall of the pump body is spherical, the pump body can rotate relative to the shell of the driving motor in any direction, and meanwhile, the distance between the blades and the liquid inlet is kept larger than the distance between the blades and the liquid outlet, so that the influence on the working efficiency of the pump is reduced;
3. the inner sealing sheet and the outer sealing sheet can respectively support the pump body, so that the pump body is rotatably connected with the output shaft, and the movable hole is sealed;
4. the inner limiting sleeve and the outer limiting sleeve can respectively compress the inner sealing sheet and the outer limiting sheet on the inner wall and the outer wall of the pump body respectively, the friction resistance between the inner limiting sheet and the inner wall of the pump body and the friction resistance between the outer limiting sheet and the outer wall of the pump body are increased, the orientation of the liquid inlet and the orientation of the liquid outlet are kept stable and unchanged, and the sealing performance of the inner limiting sheet and the outer limiting sheet on the movable hole can be improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view showing the relative position relationship between the blades and the liquid inlet and the liquid outlet according to the embodiment of the present invention;
fig. 3 is a schematic view showing a movable hole structure in an embodiment of the present invention;
fig. 4 is a schematic view showing a connection structure between the blade and the output shaft in the embodiment of the present invention;
FIG. 5 is a schematic diagram illustrating a state after the liquid inlet is rotated in a direction away from the driving motor in the embodiment of the present invention;
fig. 6 is a schematic view showing a state after the pump body axially rotates around the center of the output shaft in the embodiment of the present invention.
Wherein,
1. a drive motor; 11. an output shaft; 12. a liquid inlet; 13. a liquid outlet;
2. a pump body; 21. a blade; 22. a fixed block; 23. a movable hole; 24. a spherical sealing surface;
3. a liquid inlet pipe;
4. a liquid outlet pipe;
5. an outer limiting sleeve; 51. an outer sliding bearing;
6. an outer thrust bearing;
7. an inner limiting sleeve; 71. an inner slide bearing;
8. an inner thrust bearing;
9. an inner sealing sheet;
10. and an outer sealing sheet.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
Example 1
A portable direct current electric pump is shown in figure 1 and comprises a driving motor 1 and a pump body 2, and is combined with figure 2, wherein blades 21 are arranged inside the pump body 2, one end, located inside the pump body 2, of an output shaft 11 of the driving motor 1 is fixedly connected with a fixed block 22, the fixed block 22 is spherical, the blades 21 are fixedly connected with the outer surface of the fixed block 22, and a liquid inlet pipe 3 and a liquid outlet pipe 4 are fixedly connected onto the pump body 2; the pump body 2 is provided with a liquid inlet 12 at the position corresponding to the liquid inlet pipe 3, and the liquid inlet pipe 3 is communicated with the inner space of the pump body 2 through the liquid inlet 12; the pump body 2 is provided with a liquid outlet 13 at the position corresponding to the liquid outlet pipe 4, and the liquid outlet pipe 4 is communicated with the inner space of the pump body 2 through the liquid outlet 13; the liquid inlet 12 and the liquid outlet 13 are respectively positioned at two sides of the rotation central axis of the blade 21, the liquid inlet 12 and the liquid outlet 13 are opposite in orientation, and the distance between the liquid inlet 12 and the rotation central axis of the blade 21 is smaller than the distance between the liquid outlet 13 and the rotation central axis of the blade 21. During operation, driving motor 1 drives blade 21 rotatory, and the hydraulic pressure that blade 21 produced in inlet 12 department is less than its hydraulic pressure that produces at liquid outlet 13, makes inlet 12 continuously inhale fluid, and liquid outlet 13 continuously exports fluid.
Referring to fig. 3, the vanes 21 are arc-shaped, and the inner wall of the pump body 2 is spherical; one end of the pump body 2 close to the driving motor 1 is provided with a movable hole 23 for the output shaft 11 to pass through, and the diameter of the inner wall of the movable hole 23 is larger than that of the output shaft 11; the output shaft 11 is rotatably connected with an inner sealing sheet 9 and an outer sealing sheet 10, the inner sealing sheet 9 is positioned inside the pump body 2, the outer sealing sheet 10 is positioned outside the pump body 2, and the outer sealing sheet 10 and the inner sealing sheet 9 respectively seal two ends of the movable hole 23; the edge of one end of the movable hole 23 close to the driving motor 1 is provided with a spherical sealing surface 24, one surface of the outer sealing sheet 10 close to the pump body 2 is spherical, and one surface of the outer sealing sheet 10 close to the pump body 2 is in sealing sliding connection with the spherical sealing surface 24; one surface of the inner sealing sheet 9 close to the movable hole 23 is spherical, and one surface of the inner sealing sheet 9 close to the movable hole 23 is in sealing sliding connection with the inner wall of the pump body 2. The inner sealing sheet 9 and the outer sealing sheet 10 are respectively in press fit with the pump body 2, the inner sealing sheet 9 and the outer sealing sheet 10 respectively support the pump body 2 by means of friction force, and the pump body 2 can rotate towards any direction relative to the machine shell of the driving motor 1 (see fig. 5 and 6).
As shown in fig. 4, an outer limiting sleeve 5 is rotatably connected to the output shaft 11, the outer limiting sleeve 5 is located between the outer sealing piece 10 and the driving motor 1, an outer thrust bearing 6 is sleeved on the output shaft 11, the outer thrust bearing 6 is located between the outer limiting sleeve 5 and the casing of the driving motor 1, and two ends of the outer thrust bearing 6 are respectively abutted to the casing of the driving motor 1 and the outer limiting sleeve 5. The outer spacing sleeve 5 can restrict the motion of the outer sealing piece 10 towards the direction far away from the pump body 2, and the outer sealing piece 10 is compressed tightly on the outer wall of the pump body 2, so that the frictional resistance between the outer sealing piece 10 and the outer wall of the pump body 2 is increased, and the support stability of the outer sealing piece 10 on the pump body 2 is improved. The outer thrust bearing 6 can reduce the frictional resistance between the housing of the drive motor 1 and the outer limit sleeve 5.
An inner limiting sleeve 7 is rotatably connected to the output shaft 11, the inner limiting sleeve 7 is located between the inner sealing sheet 9 and the fixing block 22, an inner thrust bearing 8 is sleeved on the output shaft 11, the inner thrust bearing 8 is located between the inner limiting sleeve 7 and the fixing block 22, and two ends of the inner thrust bearing 8 are respectively abutted to the fixing block 22 and the inner limiting sleeve 7. The direction motion of the activity mouth is kept away from in the interior gasket 9 groove of spacing sleeve 7 can restrict, compresses tightly interior gasket 9 on 2 inner walls of the pump body, and the frictional resistance between gasket 9 and the 2 inner walls of the pump body in the increase improves the support steadiness of interior gasket 9 to the pump body 2. The inner thrust bearing 8 can reduce the frictional resistance between the fixed block 22 and the inner limiting sleeve 7.
Outer gasket 10 and interior gasket 9 all have elasticity, and behind the casing relative rotation of the pump body 2 and driving motor 1, the extrusion effort position that outer gasket 10 and interior gasket 9 received changes, and the corresponding elastic deformation that takes place of outer gasket 10 and interior gasket 9 can remain throughout and compress tightly the butt with the pump body 2. The spherical centers of the surfaces, close to each other, of the outer sealing sheet 10 and the inner sealing surface 9 and the circle centers of the blades 21 are overlapped with each other, and in the process of rotating the pump body, the distances between the rotary central axis of the blades 21 and the liquid inlet 12 and the liquid outlet 13 are kept unchanged.
An outer sliding bearing 51 is fixedly connected to a matching surface of the outer sealing sheet 10 rotatably connected with the output shaft 11, and the outer sliding bearing 51 is rotatably connected with the output shaft 11 in a sealing manner. The outer slide bearing 51 can reduce the sliding frictional resistance between the output shaft 11 and the outer seal flap 10.
An inner sliding bearing 71 is fixedly connected to a matching surface of the inner sealing sheet 9 rotatably connected with the output shaft 11, and the inner sliding bearing 71 is rotatably connected with the output shaft 11 in a sealing manner. The inner slide bearing 71 can reduce the sliding frictional resistance between the inner seal fin 9 and the output shaft 11.
The pump body 2 is divided into two parts by taking a plane passing through the center of the inner wall of the pump body 2 as a cross section, the two parts of the pump body 2 are fixedly connected through fasteners such as bolts, and the pump body 2 is convenient to disassemble and then is cleaned or the blades 21 and the inner sealing sheet 9 are maintained.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. A portable direct current electric pump comprises a driving motor (1) and a pump body (2), wherein a blade (21) is arranged inside the pump body (2), the blade (21) is fixedly connected with an output shaft (11) of the driving motor (1), and a liquid inlet pipe (3) and a liquid outlet pipe (4) are fixedly connected to the pump body (2);
a liquid inlet (12) is formed in the pump body (2) at a position corresponding to the liquid inlet pipe (3), and the liquid inlet pipe (3) is communicated with the inner space of the pump body (2) through the liquid inlet (12);
a liquid outlet (13) is formed in the pump body (2) opposite to the liquid outlet pipe (4), and the liquid outlet pipe (4) is communicated with the inner space of the pump body (2) through the liquid outlet (13);
the liquid inlet (12) and the liquid outlet (13) are respectively positioned at two sides of the rotary central axis of the blade (21), and the distance between the liquid inlet (12) and the rotary central axis of the blade (21) is smaller than the distance between the liquid outlet (13) and the rotary central axis of the blade (21);
the method is characterized in that:
the vanes (21) are arc-shaped, and the inner wall of the pump body (2) is spherical;
one end of the pump body (2) close to the driving motor (1) is provided with a movable hole (23) for the output shaft (11) to pass through, and the diameter of the inner wall of the movable hole (23) is larger than that of the output shaft (11);
the output shaft (11) is rotatably connected with an inner sealing sheet (9) and an outer sealing sheet (10), the inner sealing sheet (9) is positioned inside the pump body (2), the outer sealing sheet (10) is positioned outside the pump body (2), and the outer sealing sheet (10) and the inner sealing sheet (9) respectively seal two ends of the movable hole (23);
the edge of one end of the movable hole (23) close to the driving motor (1) is provided with a spherical sealing surface (24), one surface of the outer sealing sheet (10) close to the pump body (2) is spherical, and one surface of the outer sealing sheet (10) close to the pump body (2) is in sealing sliding connection with the spherical sealing surface (24);
one surface of the inner sealing sheet (9) close to the movable hole (23) is spherical, and one surface of the inner sealing sheet (9) close to the movable hole (23) is in sealing sliding connection with the inner wall of the pump body (2).
2. The portable direct current electric pump according to claim 1, characterized in that: the output shaft (11) is connected with an outer limiting sleeve (5) in a rotating mode, the outer limiting sleeve (5) is located between the outer sealing piece (10) and the driving motor (1), one end of the outer limiting sleeve (5) is connected with the outer sealing piece (10) in a butting mode, and the other end of the outer limiting sleeve (5) is connected with the shell of the driving motor (1) in a butting mode.
3. A portable direct current electric pump according to claim 2, wherein: an outer thrust bearing (6) is sleeved on the output shaft (11), the outer thrust bearing (6) is located between the outer limiting sleeve (5) and the shell of the driving motor (1), and two ends of the outer thrust bearing (6) are respectively abutted to the shell of the driving motor (1) and the outer limiting sleeve (5).
4. The portable direct current electric pump according to claim 1, characterized in that: one end of the output shaft (11) positioned in the pump body (2) is fixedly connected with a fixed block (22), the fixed block (22) is spherical, and the blades (21) are fixedly connected with the outer surface of the fixed block (22); an inner limiting sleeve (7) is rotatably connected to the output shaft (11), the inner limiting sleeve (7) is located between the inner sealing piece (9) and the fixing block (22), one end of the inner limiting sleeve (7) is connected with the inner sealing piece (9) in an abutting mode, and the other end of the inner limiting sleeve (7) is connected with the fixing block (22) in an abutting mode.
5. The portable direct current electric pump according to claim 4, wherein: an inner thrust bearing (8) is sleeved on the output shaft (11), the inner thrust bearing (8) is located between the inner limiting sleeve (7) and the fixing block (22), and two ends of the inner thrust bearing (8) are respectively connected with the fixing block (22) and the inner limiting sleeve (7) in an abutting mode.
6. The portable direct current electric pump according to claim 1, characterized in that: and an outer sliding bearing (51) is fixedly connected to a matching surface of the outer sealing sheet (10) and the output shaft (11) in a rotating connection, and the outer sliding bearing (51) is in a sealing and rotating connection with the output shaft (11).
7. The portable direct current electric pump according to claim 1, characterized in that: the outer seal piece (10) has elasticity.
8. The portable direct current electric pump according to claim 1, characterized in that: the inner sealing sheet (9) and the output shaft (11) are rotatably connected with each other, an inner sliding bearing (71) is fixedly connected to a matching surface, and the inner sliding bearing (71) is rotatably connected with the output shaft (11) in a sealing mode.
9. The portable direct current electric pump according to claim 1, characterized in that: the inner sealing sheet (9) has elasticity.
10. The portable direct current electric pump according to claim 1, characterized in that: the pump body (2) is divided into two parts by taking a plane passing through the center of the inner wall of the pump body (2) as a section, and the two parts of the pump body (2) are detachably and fixedly connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475691.0U CN208831252U (en) | 2018-09-10 | 2018-09-10 | A kind of portable direct current electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821475691.0U CN208831252U (en) | 2018-09-10 | 2018-09-10 | A kind of portable direct current electric pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831252U true CN208831252U (en) | 2019-05-07 |
Family
ID=66312592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821475691.0U Active CN208831252U (en) | 2018-09-10 | 2018-09-10 | A kind of portable direct current electric pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208831252U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058116A (en) * | 2018-09-10 | 2018-12-21 | 北京神州港俄机电设备有限公司 | A kind of electric oil pump |
-
2018
- 2018-09-10 CN CN201821475691.0U patent/CN208831252U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058116A (en) * | 2018-09-10 | 2018-12-21 | 北京神州港俄机电设备有限公司 | A kind of electric oil pump |
| CN109058116B (en) * | 2018-09-10 | 2023-12-22 | 北京神州港俄机电设备有限公司 | Electric oil pump |
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