CN219954270U - High-low pressure comprehensive overflow valve - Google Patents
High-low pressure comprehensive overflow valve Download PDFInfo
- Publication number
- CN219954270U CN219954270U CN202321443122.9U CN202321443122U CN219954270U CN 219954270 U CN219954270 U CN 219954270U CN 202321443122 U CN202321443122 U CN 202321443122U CN 219954270 U CN219954270 U CN 219954270U
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- Prior art keywords
- overflow
- valve
- low pressure
- sealing ring
- case
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- 238000007789 sealing Methods 0.000 claims abstract description 41
- 239000000463 material Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model relates to the technical field of high-pressure cleaning machines, in particular to a high-low pressure comprehensive overflow valve. Including disk seat (1), valve rod (2) of setting in disk seat (1), cover establish case (3) at valve rod (2) front end, inlay establish in disk seat (1) and with case (3) cooperation sealed first sealing washer (4) and cover establish on valve rod (2) and be used for supporting spring (5) of case (3), be provided with first overflow launder (6) on the outer circumference of case (3), case (3) still include extension (7) that stretch out disk seat (1), disk seat (1) outside be provided with extension (7) cooperation sealed second sealing washer (8) and be used for fixed second sealing washer (8) press cap (9), just still be provided with second overflow launder (10) on the outer circumference of extension (7). The overflow valve has low overall accuracy requirement, low spring force requirement and low voltage starting.
Description
Technical Field
The utility model relates to the technical field of high-pressure cleaning machines, in particular to a high-low pressure comprehensive overflow valve.
Background
The overflow system is an important component of the high pressure washer. In the prior art, as the inventor applies for a patent number of CN201811181877.X on the 10 th and 11 th of 2018, the overflow system is named, and mainly comprises a valve seat, a valve rod arranged in the valve seat, a spring sleeved on the valve rod and used for resetting the valve rod, and a valve core sleeved at the front end of the valve rod, wherein a sealing ring is arranged between the valve core and the valve seat, and the front end of the valve rod is matched with a passage opening of the valve seat, so that the front end of the valve rod is made into an inclined surface matched with the passage opening of the valve seat, but the precision required by the operation is higher, so that the defective rate is higher, and the cost is higher; moreover, because the overflow groove is only arranged on the circumference of the valve core in the prior art, the valve rod can be jacked up when the external water pressure is large, so that water can flow out from the overflow groove, and because only one pressure release is performed, the elastic requirement on the spring is high, and further, the spring can be jacked up only by generating larger force with larger voltage during starting.
Disclosure of Invention
The technical scheme to be solved by the utility model is as follows: the high-low pressure comprehensive overflow valve is low in overall accuracy requirement, low in spring force requirement and capable of being started at low voltage.
The technical scheme adopted by the utility model is as follows: the utility model provides a high low pressure synthesizes overflow valve, includes the disk seat, sets up valve rod in the disk seat, the case of cover at the valve rod front end, inlay establish in the disk seat and with the sealed first sealing washer of case cooperation and the spring of cover on the valve rod and be used for supporting the case, be provided with first overflow launder on the outer circumference of case, the case still includes the extension that stretches out the disk seat, the disk seat outside is provided with the second sealing washer of sealing with the extension cooperation and is used for fixing the pressure cap of second sealing washer, just still be provided with the second overflow launder on the extension outer circumference.
Preferably, the extension is integrally formed with the valve core.
Preferably, the valve rod, the valve core and the extension part are integrally formed.
Preferably, the valve rod, the valve core and the extension part are integrally formed by plastic materials.
Preferably, the second overflow groove comprises two parts, namely a first part and a second part, wherein the first part is far away from the second sealing ring, the second part is close to the second sealing ring, the groove depth of the first part is the same, and the groove depth of the second part close to the second sealing ring is smaller than the groove depth of the second part far away from the second sealing ring.
Preferably, the number of the second overflow grooves is two, and the two second overflow grooves are uniformly arranged on the outer circumference of the extension part.
Preferably, the number of the first overflow grooves is six, and the six first overflow grooves are uniformly arranged on the outer circumference of the valve core.
Compared with the prior art, the utility model has the following advantages: the valve core is extended to the outside of the valve seat to form an extension part, a second overflow groove is arranged on the extension part, and then a second sealing ring is arranged on the outside of the valve core, which is equivalent to performing secondary overflow, namely, when external water pressure is large, the extension part can be pushed to move first, so that the second overflow groove moves to the position of the second sealing ring, at the moment, water can flow into the valve seat from a gap between the second overflow groove and the second sealing ring, then water in the valve seat can generate certain water pressure, the valve core is pushed to move, so that the first overflow groove moves to the position of the first sealing ring, water flows out from a gap between the first overflow groove and the first sealing ring, thus, the matching precision between the valve core and the valve seat is not required to be high, and the spring reset valve core does not need large force any more, so that the spring force requirement of the spring is low, and the starting can be realized only by small water pressure when the spring force is started, namely, the starting can be realized at low voltage.
The valve core, the valve rod and the extension part are integrally formed, so that the integral production and processing are convenient.
The valve core, the valve rod and the extension part are made of plastic materials, and because the valve core, the valve rod and the extension part are overflowed twice, the strength requirements of the valve core, the extension part and the valve rod are reduced, the reliability of the plastic materials can be also improved, and a part of cost can be reduced.
By adopting the second overflow trough, the overflow can be started slowly, so that the overall overflow effect is better.
Two second overflow tanks and six first overflow tanks are adopted, so that overflow is uniform, and the overflow effect is good.
Drawings
Fig. 1 is a cross-sectional view of a high and low pressure integrated relief valve according to the present utility model.
Fig. 2 is a schematic structural diagram of a valve core, an extension part and a valve rod in the high-low pressure integrated overflow valve.
Wherein, 1, valve base; 2. a valve stem; 3. a valve core; 4. a first seal ring; 5. a spring; 6. a first overflow trough; 7. an extension; 8. a second seal ring; 9. pressing the cap; 10. and a second overflow trough.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
Embodiment one:
the utility model provides a high low pressure synthesizes overflow valve, includes disk seat 1, valve rod 2, case 3, spring 5, first sealing washer 4 and second sealing washer 8, wherein:
the valve seat 1 comprises a front sleeve and a rear sleeve, and the front sleeve and the rear sleeve are combined to form the valve seat 1;
a first sealing groove is formed between the front sleeve and the rear sleeve and is used for embedding the first sealing ring 4, a channel is arranged in the middle of the front end of the front sleeve, a second sealing groove is arranged outside the channel and is used for embedding the second sealing ring 8, and the second sealing ring 8 is installed and limited through a gland after being embedded;
the valve rod 2 is arranged in the valve seat 1, the front end of the valve rod is sleeved with the valve core 3, six first overflow grooves 6 are uniformly arranged on the upper part of the valve core 3 along the circumference, the lower part of the valve core 3 is matched and sealed with the first sealing ring 4, the front end of the valve core 3 is provided with an extension part 7, the extension part 7 penetrates through the channel, two second overflow grooves 10 are uniformly arranged on the upper part of the extension channel along the circumference, and the extension part 7 penetrates through the channel and the lower part of the extension channel is matched and sealed with the second sealing ring 8;
a spring 5 is sleeved on the valve rod 2, one end of the spring 5 is propped against the rear sleeve, and the other end of the spring 5 is propped against the valve core 3;
the working principle of the utility model is as follows: when the external water pressure is greater than a set value, the extending part 7, the valve core 3 and the valve rod 2 are pushed back, after a certain distance is pushed, the second overflow groove 10 on the extending part 7 moves to the position of the second sealing ring 8, at the moment, water flows into the valve seat 1 from a gap between the second overflow groove 10 and the second sealing ring 8 to form first overflow, then the water flowing into the valve seat 1 generates moving pressure to push the valve core 3 to move back, after the valve core 3 moves a certain distance, the first overflow groove 6 on the valve core 3 moves to the position of the first sealing ring 4, at the moment, the water flows out from the gap between the first overflow groove 6 and the first sealing ring 4 to form second overflow.
Embodiment two:
the difference from the first embodiment is that in the second embodiment the second overflow launder 10 is divided into two parts, a first part and a second part, respectively, the first part is far from the second sealing ring 8, the second part is near the second sealing ring 8, the groove depth of the first part is the same, the groove depth of the second part is different, the groove depth at the junction of the second part and the first part is the same as the groove depth of the first part, and the groove depth near the second sealing ring 8 in the second part is smaller than the groove depth far from the second sealing ring 8 in the second part.
Embodiment III:
the difference from the first embodiment is that in the third embodiment, both the extension 7 and the valve body 3 are integrally formed.
Embodiment four:
the difference from the third embodiment is that the extension portion 7, the valve element 3, and the valve stem 2 are integrally formed in the fourth embodiment.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Various alterations and modifications will no doubt become apparent to those skilled in the art after having read the above description. Therefore, the appended claims should be construed to cover all such variations and modifications as fall within the true spirit and scope of the utility model. Any and all equivalents and alternatives falling within the scope of the claims are intended to be embraced therein.
Claims (7)
1. The utility model provides a high low pressure synthesizes overflow valve, includes disk seat (1), sets up valve rod (2) in disk seat (1), cover establish case (3) at valve rod (2) front end, inlay establish in disk seat (1) and with case (3) cooperation sealed first sealing washer (4) and cover establish on valve rod (2) and be used for supporting spring (5) of case (3), be provided with first overflow launder (6), its characterized in that on the outer circumference of case (3): the valve core (3) further comprises an extension part (7) extending out of the valve seat (1), a second sealing ring (8) matched and sealed with the extension part (7) and a pressing cap (9) used for fixing the second sealing ring (8) are arranged outside the valve seat (1), and a second overflow groove (10) is further formed in the outer circumference of the extension part (7).
2. The high-low pressure integrated relief valve according to claim 1, wherein: the extension part (7) and the valve core (3) are integrally formed.
3. The high-low pressure integrated relief valve according to claim 2, wherein: the valve rod (2), the valve core (3) and the extension part (7) are integrally formed.
4. A high and low pressure integrated relief valve according to claim 3, wherein: the valve rod (2), the valve core (3) and the extension part (7) are integrally formed by plastic materials.
5. The high-low pressure integrated relief valve according to claim 1, wherein: the second overflow groove (10) comprises a first part and a second part, the first part is far away from the second sealing ring (8), the second part is close to the second sealing ring (8), the groove depths of the first part are the same, and the groove depth of the second part close to the second sealing ring (8) is smaller than the groove depth of the second part far away from the second sealing ring (8).
6. The high-low pressure integrated relief valve according to claim 1, wherein: the number of the second overflow grooves (10) is two, and the two second overflow grooves (10) are uniformly arranged on the outer circumference of the extension part (7).
7. The high-low pressure integrated relief valve according to claim 1, wherein: six first overflow grooves (6) are arranged, and the six first overflow grooves (6) are uniformly arranged on the outer circumference of the valve core (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321443122.9U CN219954270U (en) | 2023-06-07 | 2023-06-07 | High-low pressure comprehensive overflow valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321443122.9U CN219954270U (en) | 2023-06-07 | 2023-06-07 | High-low pressure comprehensive overflow valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219954270U true CN219954270U (en) | 2023-11-03 |
Family
ID=88551223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321443122.9U Active CN219954270U (en) | 2023-06-07 | 2023-06-07 | High-low pressure comprehensive overflow valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219954270U (en) |
-
2023
- 2023-06-07 CN CN202321443122.9U patent/CN219954270U/en active Active
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