CN219221366U - Screw-thread connected mud pump check valve - Google Patents
Screw-thread connected mud pump check valve Download PDFInfo
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- CN219221366U CN219221366U CN202223225511.2U CN202223225511U CN219221366U CN 219221366 U CN219221366 U CN 219221366U CN 202223225511 U CN202223225511 U CN 202223225511U CN 219221366 U CN219221366 U CN 219221366U
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Abstract
The utility model discloses a screw thread connection mud pump one-way valve, which comprises a valve body, a valve seat and a valve core, wherein the valve core comprises a valve head and a valve rod; the valve head is arranged at the bottom end of the valve rod; the valve body is provided with an inner hole, the inner hole of the valve body is provided with a middle partition plate perpendicular to the central axis of the inner hole of the valve body, and the middle partition plate is provided with a plurality of liquid passing through holes; the middle partition plate divides the valve body inner hole of the valve body into an upper part and a lower part; a plurality of liquid outlet holes perpendicular to the central axis of the inner hole of the valve body are arranged above the middle partition plate on the side wall of the valve body; a valve cover is arranged at the top end of the valve body; the valve rod is sleeved with a spring ring, the top surface of the spring ring is contacted with the bottom surface of the middle partition plate, and the bottom surface of the spring ring is contacted with the top surface of the valve head; the valve seat is installed in the bottom of valve body, is equipped with the feed liquor hole perpendicularly on the centroid of valve seat, and the valve head contacts and can seal the top surface of feed liquor hole with the feed liquor hole of valve seat. The screw thread connected mud pump check valve has the advantages of long service life and quick replacement.
Description
Technical Field
The utility model relates to the field of slurry pumps, in particular to a screw thread connection slurry pump one-way valve.
Background
In the technical field of oil drilling, the reciprocating motion of a slurry pump enables the volume of liquid in a valve box to be periodically changed, so that a valve assembly in the valve box is driven to perform up-and-down opening and closing motions, and finally the pumping of a medium is realized. In the prior art, a rubber part is often adopted to seal between a valve seat and a valve body of a small-pressure slurry pump, the valve seat and the valve body are easy to abrade in the reciprocating motion of the slurry pump, so that leakage liquid is caused, the service life is short, when the valve seat of the plunger pump is replaced, an internal valve component is required to be replaced by frequently disassembling and assembling the valve seat of the plunger pump, and the check valve sealed by the rubber part is also troublesome to replace.
Disclosure of Invention
The utility model aims to provide a screw thread connection mud pump one-way valve which has the advantages of long service life and quick replacement.
The technical scheme adopted by the utility model is as follows.
The check valve of the screw thread connection slurry pump comprises a valve body, a valve seat and a valve core, wherein the valve core comprises a valve head and a valve rod.
The valve head is arranged at the bottom end of the valve rod; the diameter of the valve head is larger than that of the valve rod.
The horizontal section of the valve body is circular; the middle part of the valve body inner hole is provided with a middle baffle plate perpendicular to the central axis of the valve body inner hole; the inner hole of the valve body is divided into an upper part and a lower part by the middle partition plate.
A valve rod jack is vertically arranged on the centroid of the middle partition plate, the upper end of the valve rod is inserted into the valve rod jack, and a plurality of liquid passing through holes are formed in the valve rod jack on the middle partition plate; a plurality of liquid outlet holes perpendicular to the central axis of the inner hole of the valve body are arranged above the middle partition plate on the side wall of the valve body; the top of the valve body is provided with a valve cover.
The valve rod is sleeved with a spring ring, the top surface of the spring ring is contacted with the bottom surface of the middle partition plate, and the bottom surface of the spring ring is contacted with the top surface of the valve head.
The valve seat is installed in the bottom of valve body, is equipped with the feed liquor hole perpendicularly on the centroid of valve seat, and the valve head contacts and can seal the top surface of feed liquor hole with the feed liquor hole of valve seat.
As the preferable technical proposal, the central axis of the valve head and the central axis of the liquid inlet are on the same straight line.
As a preferable technical scheme, the cross section of the valve head is round.
As a preferable technical scheme, the diameter of the valve head gradually becomes smaller from top to bottom.
As the preferable technical scheme, the diameter of the top end of the valve head is larger than the diameter of the liquid inlet hole, and the diameter of the bottom end of the valve head is smaller than the diameter of the liquid inlet hole.
As the preferable technical scheme, the external diameter of the upper end of the valve seat is smaller than the external diameter of the rest part of the valve seat, the radial outer peripheral surface of the upper end of the valve seat is provided with external threads, the radial inner peripheral surface of the lower end of the valve body is provided with internal threads which are matched with the external threads of the upper end of the valve seat, and the upper end of the valve seat is in threaded connection with the radial inner peripheral surface of the lower end of the valve body.
As the preferable technical scheme, the diameter of the inner hole at the lower end of the valve body is larger than that of the inner hole at the other part of the valve body, so that a positioning step is formed in the inner hole at the lower end of the valve body, an inner thread which is adaptive to the outer thread at the upper end of the valve seat is arranged at the lower part of the positioning step of the inner hole of the valve body, and the upper end of the valve seat is in threaded connection with the lower part of the positioning step of the inner hole of the valve body. By adopting the technical scheme, the positioning step plays a limiting role, and the valve seat is prevented from excessively extruding the spring through the valve head.
As the preferable technical scheme, the top end of the valve body is in threaded connection with the valve cover.
As a preferable technical scheme, a rotary tool jack perpendicular to the central axis of the valve seat is arranged on the valve seat. By adopting the technical scheme, the valve seat is convenient to detach.
As a preferred technical solution, the horizontal section of the valve seat is circular.
The beneficial effects of the utility model are as follows:
firstly, the valve seat is arranged below the valve body in a threaded manner, the mechanical seal valve body is in threaded connection with the valve seat to replace rubber seal, the service life is long, frequent replacement of rubber sealing elements is reduced, and the maintenance times of the pump are reduced.
And secondly, the valve seat can be quickly replaced and can be detached by rotating the valve seat.
Thirdly, the degree that can get into the valve body through the disk seat is adjusted the reflux volume, promotes control accuracy, is particularly useful for the slush pump of little pressure to use.
Drawings
FIG. 1 is a schematic view of a preferred embodiment of the threaded mud pump check valve of the present utility model.
Fig. 2 is a partial enlarged view of a portion a of fig. 1.
FIG. 3 is a schematic view of a preferred embodiment of the threaded mud pump check valve of the present utility model.
Fig. 4 is a partial enlarged view of a portion B of fig. 3.
Fig. 5 is a schematic view of a preferred embodiment of the threaded mud pump check valve of the present utility model.
Fig. 6 is a partial enlarged view of a portion C of fig. 5.
Wherein: a valve body-1; a valve seat-2; valve head-3; a valve stem-4; a middle clapboard-5; valve rod jack-6; a liquid passing through hole-7; a liquid outlet hole-8; a valve cover-9; spring ring-10; a liquid inlet hole-11; positioning the step-12; rotating the tool insertion hole-13; and an inner bore of the valve body-14.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The utility model will be further described with reference to the drawings and examples.
Example 1. As shown in fig. 1-2, the check valve of the screw-thread connection slurry pump comprises a valve body 1, a valve seat 2 and a valve core.
The valve core comprises a valve head 3 and a valve rod 4.
The valve head 3 is arranged at the bottom end of the valve rod 4; the diameter of the valve head 3 is larger than the diameter of the valve stem 4.
The horizontal section of the valve body 1 is circular; the middle part of the valve body inner hole 14 of the valve body 1 is provided with a middle baffle plate 5 perpendicular to the central axis of the valve body 1 inner hole; the middle partition board 5 divides the valve body inner hole 14 of the valve body 1 into an upper part and a lower part.
A valve rod jack 6 is vertically arranged on the centroid of the middle partition plate 5, the upper end of the valve rod 4 is inserted into the valve rod jack 6, and a plurality of liquid passing through holes 7 are formed in the valve rod jack 6 on the middle partition plate 5; a plurality of liquid outlet holes 8 perpendicular to the central axis of the inner hole of the valve body 1 are arranged above the middle partition plate 5 on the side wall of the valve body 1; the top end of the valve body 1 is provided with a valve cover 9.
The valve rod 4 is sleeved with a spring ring 10, the top surface of the spring ring 10 is contacted with the bottom surface of the middle partition plate 5, and the bottom surface of the spring ring 10 is contacted with the top surface of the valve head 3.
The valve seat 2 is arranged at the bottom end of the valve body 1, a liquid inlet hole 11 is vertically formed in the centroid of the valve seat 2, and the valve head 3 is in contact with the liquid inlet hole 11 of the valve seat 2 and can seal the top surface of the liquid inlet hole 11.
The central axis of the valve head 3 and the central axis of the liquid inlet 11 are on the same straight line.
The cross section of the valve head 3 is round.
The diameter of the valve head 3 gradually becomes smaller from top to bottom.
The diameter of the top end of the valve head 3 is larger than the diameter of the liquid inlet 11, and the diameter of the bottom end of the valve head 3 is smaller than the diameter of the liquid inlet 11.
The external diameter of the upper end of the valve seat 2 is smaller than that of the rest part, the radial outer peripheral surface of the upper end of the valve seat 2 is provided with external threads, the radial inner peripheral surface of the lower end of the valve body 1 is provided with internal threads which are matched with the external threads of the upper end of the valve seat 2, and the upper end of the valve seat 2 is in threaded connection with the radial inner peripheral surface of the lower end of the valve body 1.
The top end of the valve body 1 is in threaded connection with a valve cover 9.
The valve seat 2 is provided with a rotary tool jack 13 perpendicular to the central axis of the valve seat 2, so that the valve seat is convenient to detach.
The valve seat 2 has a circular cross section.
The beneficial effects are as follows:
firstly, the valve seat is arranged below the valve body in a threaded manner, the mechanical seal valve body is in threaded connection with the valve seat to replace rubber seal, the service life is long, frequent replacement of rubber sealing elements is reduced, and the maintenance times of the pump are reduced.
And secondly, the valve seat can be quickly replaced and can be detached by rotating the valve seat.
Thirdly, the degree that can get into the valve body through the disk seat is adjusted the reflux volume, promotes control accuracy, is particularly useful for the slush pump of little pressure to use.
Example 2. As shown in fig. 3 to 4, this embodiment is different from embodiment 1 in that: the diameter of the inner hole at the lower end of the valve body 1 is larger than that of the inner hole at the rest part of the valve body, so that a positioning step 12 is formed in the inner hole at the lower end of the valve body 1, an inner thread which is matched with the outer thread at the upper end of the valve seat 2 is arranged at the lower part of the positioning step 12 of the inner hole of the valve body 1, and the upper end of the valve seat 2 is in threaded connection with the lower part of the positioning step 12 of the inner hole of the valve body 1. With this technical solution, the positioning step 12 plays a limiting role, preventing the valve seat from excessively squeezing the spring through the valve head.
Example 3. As shown in fig. 5 to 6, this embodiment is different from embodiment 1 in that: the valve seat 2 is provided with a rotary tool insertion hole 13 perpendicular to the central axis of the valve seat 2.
The above-mentioned embodiments are only for understanding the present utility model, and are not intended to limit the technical solutions described in the present utility model, and a person skilled in the relevant art may make various changes or modifications, and all equivalent changes or modifications are intended to be included in the scope of the present utility model. The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (10)
1. The utility model provides a threaded connection slush pump check valve, includes valve body (1), disk seat (2), case, its characterized in that:
the valve core comprises a valve head (3) and a valve rod (4);
the valve head (3) is arranged at the bottom end of the valve rod (4); the diameter of the valve head (3) is larger than that of the valve rod (4);
the horizontal section of the valve body (1) is circular; the middle part of the valve body inner hole (14) of the valve body (1) is provided with a middle baffle plate (5) perpendicular to the central axis of the valve body (1) inner hole; the middle clapboard (5) divides the valve body inner hole (14) of the valve body (1) into an upper part and a lower part;
a valve rod jack (6) is vertically arranged on the centroid of the middle partition plate (5), the upper end of the valve rod (4) is inserted into the valve rod jack (6), and a plurality of liquid passing through holes (7) are formed in the valve rod jack (6) on the middle partition plate (5); a plurality of liquid outlet holes (8) which are perpendicular to the central axis of the inner hole of the valve body (1) are arranged above the middle partition plate (5) on the side wall of the valve body (1); a valve cover (9) is arranged at the top end of the valve body (1);
a spring ring (10) is sleeved on the valve rod (4), the top surface of the spring ring (10) is contacted with the bottom surface of the middle partition plate (5), and the bottom surface of the spring ring (10) is contacted with the top surface of the valve head (3);
the valve seat (2) is arranged at the bottom end of the valve body (1), a liquid inlet hole (11) is vertically formed in the centroid of the valve seat (2), and the valve head (3) is in contact with the liquid inlet hole (11) of the valve seat (2) and can seal the top surface of the liquid inlet hole (11).
2. The threaded connection mud pump check valve as set forth in claim 1, wherein: the central axis of the valve head (3) and the central axis of the liquid inlet hole (11) are on the same straight line.
3. The threaded connection mud pump check valve as set forth in claim 1, wherein: the cross section of the valve head (3) is round.
4. The threaded connection mud pump check valve as set forth in claim 1, wherein: the diameter of the valve head (3) gradually decreases from top to bottom.
5. The threaded connection mud pump check valve as set forth in claim 4, wherein: the diameter of the top end of the valve head (3) is larger than the diameter of the liquid inlet hole (11), and the diameter of the bottom end of the valve head (3) is smaller than the diameter of the liquid inlet hole (11).
6. The threaded connection mud pump check valve as set forth in claim 1, wherein: the external diameter of the upper end of disk seat (2) is less than the external diameter of its rest, and the radial periphery surface of the upper end of disk seat (2) is equipped with the external screw thread, and the radial internal periphery surface of valve body (1) lower extreme is equipped with the internal screw thread that suits with the external screw thread of the upper end of disk seat (2), and the upper end threaded connection of disk seat (2) is on the radial internal periphery surface of valve body (1) lower extreme.
7. The threaded connection mud pump check valve as set forth in claim 6, wherein: the diameter of the inner hole at the lower end of the valve body (1) is larger than that of the inner hole at the other part of the valve body, so that a positioning step (12) is formed in the inner hole at the lower end of the valve body (1), an inner thread which is matched with the outer thread at the upper end of the valve seat (2) is arranged at the lower part of the positioning step (12) of the inner hole of the valve body (1), and the upper end of the valve seat (2) is in threaded connection with the lower part of the positioning step (12) of the inner hole of the valve body (1).
8. The threaded connection mud pump check valve as set forth in claim 1, wherein: the top end of the valve body (1) is in threaded connection with the valve cover (9).
9. The threaded connection mud pump check valve as set forth in claim 1, wherein: the valve seat (2) is provided with a rotary tool jack (13) perpendicular to the central axis of the valve seat (2).
10. The threaded connection mud pump check valve as set forth in claim 1, wherein: the horizontal section of the valve seat (2) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223225511.2U CN219221366U (en) | 2022-12-03 | 2022-12-03 | Screw-thread connected mud pump check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223225511.2U CN219221366U (en) | 2022-12-03 | 2022-12-03 | Screw-thread connected mud pump check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219221366U true CN219221366U (en) | 2023-06-20 |
Family
ID=86741208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223225511.2U Active CN219221366U (en) | 2022-12-03 | 2022-12-03 | Screw-thread connected mud pump check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219221366U (en) |
-
2022
- 2022-12-03 CN CN202223225511.2U patent/CN219221366U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |