CN211145467U - Straight-through type adjustable one-way valve - Google Patents
Straight-through type adjustable one-way valve Download PDFInfo
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- CN211145467U CN211145467U CN201921787104.6U CN201921787104U CN211145467U CN 211145467 U CN211145467 U CN 211145467U CN 201921787104 U CN201921787104 U CN 201921787104U CN 211145467 U CN211145467 U CN 211145467U
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Abstract
The utility model belongs to the technical field of the check valve, a adjustable check valve of through-type is disclosed. The utility model provides a through adjustable check valve, the first valve body, the second valve body and the adjusting seat are all coaxially arranged, the two ends of the adjusting seat are respectively in threaded connection with the first valve body and the second valve body, and a spring is arranged between the adjusting seat and the first valve body; the first valve body and the second valve body are coaxially arranged, one end of the adjusting seat is in threaded connection with the first valve body, the other end of the adjusting seat is in threaded connection with the second valve body, and a spring is arranged between the adjusting seat and the first valve body; the valve core is assembled inside the first valve body, one end of the spring is connected to the adjusting seat, and the other end of the spring is sleeved on the valve core; the locking and positioning assembly is arranged on the first valve body and is configured to be capable of locking the adjusting seat. The straight-through adjustable one-way valve can realize the online adjustment of the opening pressure of the one-way valve, so that the simple regulation and control of the pressure of the whole fluid pressure system are realized, and the straight-through adjustable one-way valve has the advantages of simple structure, convenience and rapidness in operation, accuracy and reliability.
Description
Technical Field
The utility model relates to a check valve technical field especially relates to an adjustable check valve of through type.
Background
The check valve is a device capable of controlling the flow direction of fluid, and can realize one-way circulation of fluid medium by controlling the one-way opening of a fluid flow channel, so as to prevent the reverse flow of fluid in the system, and is often applied to fluid pipelines such as liquid or gas and the like to control the one-way circulation of fluid. In addition, the one-way valve not only can control one-way circulation of fluid, but also has the function of pressure maintaining, and the system pressure at the front end of the one-way valve can be guaranteed by setting the opening pressure of the one-way valve.
Check valves are generally classified into two types, a straight-through check valve and a right-angle check valve. As shown in fig. 1, a conventional through-type check valve on the market at present mainly includes a valve body 1 ', a valve seat 2', a valve element 3 ', a spring 4' and a sealing ring 5 ', wherein when a front-end fluid pressure reaches a check valve opening pressure, the valve element 3' opens a medium to flow through the check valve, and when the pressure does not reach the opening pressure, the check valve keeps a closed state, thereby preventing the medium from flowing in a forward direction, and simultaneously, the check valve can always prevent the medium from flowing in a reverse direction.
The opening pressure of the check valve with the structure is determined after the check valve is assembled and cannot be changed, if the opening pressure is adjusted, the spring can only be replaced, and then the check valve is calibrated again, so that the check valve is inconvenient to operate and long in period. However, in the actual use process, after a plurality of pressure systems are calibrated in a factory, the pressure systems still need to be debugged again when arriving at the site for commissioning, and at this time, if the system pressure needs to be adjusted, the traditional check valve does not have the function of adjusting the opening pressure, great difficulty is brought to the site operation, and meanwhile, the product debugging and commissioning time is prolonged. Therefore, a straight-through adjustable check valve with simple structure, reliability and practicability is needed to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an adjustable check valve of through type has realized the online regulation of the opening pressure of check valve, has simple structure, adjusts convenient, reliable practical advantage.
To achieve the purpose, the utility model adopts the following technical proposal:
a through, adjustable check valve comprising:
a first valve body and a second valve body;
the adjusting seat is coaxially arranged with the first valve body and the second valve body, two ends of the adjusting seat are respectively in threaded connection with the first valve body and the second valve body, and a spring is arranged between the adjusting seat and the first valve body;
the valve core is assembled inside the first valve body, one end of the spring is connected to the adjusting seat, and the other end of the spring is sleeved on the valve core;
and the locking and positioning assembly is arranged on the first valve body and is configured to be capable of locking the adjusting seat.
As a preferred technical solution of the straight-through adjustable check valve, the locking and positioning assembly includes a threaded through hole disposed on the first valve body, and a locking screw disposed in the threaded through hole, and a bottom end of the locking screw can abut against the adjusting seat.
As a preferred technical solution of the straight-through adjustable check valve, an accommodating groove and a circulation hole communicated with the accommodating groove are formed in the adjusting seat, one end of the spring is clamped in the accommodating groove, and the other end of the spring is sleeved on the step of the valve core.
As a preferred technical solution of the straight-through adjustable check valve, a central flow passage is provided inside the first valve body, the valve core includes a start/stop end penetrating the central flow passage, a baffle connected to the start/stop end, and the step connected to the baffle, and the baffle is used for blocking or opening the central flow passage.
As a preferable technical scheme of the straight-through type adjustable one-way valve, the opening and closing end is in clearance fit with the central flow passage.
As a preferable technical scheme of the straight-through adjustable check valve, two opposite adjusting holes are formed in the outer wall of the adjusting seat along the direction perpendicular to the axis of the adjusting seat, and the adjusting holes are used for inserting a force application tool to rotate the adjusting seat.
As a preferable technical scheme of the straight-through adjustable check valve, an annular first thread groove and an annular second thread groove are formed in the outer wall of the adjusting seat, the first thread groove is used for being in threaded connection with the first valve body, the second thread groove is used for being in threaded connection with the second valve body, and the first thread groove and the second thread groove are respectively located on two sides of the adjusting hole.
As a preferred technical scheme of the straight-through adjustable check valve, a first sealing ring is arranged between the first valve body and the adjusting seat, and a second sealing ring is arranged between the second valve body and the adjusting seat.
As an optimal technical scheme of the straight-through adjustable check valve, an annular first sealing groove and an annular second sealing groove are formed in the outer wall of the adjusting seat, the first sealing groove is located on one side, away from the second thread groove, of the first thread groove, the first sealing groove is used for accommodating the first sealing ring, the second sealing groove is located on one side, away from the first thread groove, of the second thread groove, and the second sealing groove is used for accommodating the second sealing ring.
Compared with the prior art, the utility model discloses an advantage and beneficial effect lie in:
the utility model provides a through adjustable check valve, the first valve body, the second valve body and the adjusting seat are all coaxially arranged, the two ends of the adjusting seat are respectively in threaded connection with the first valve body and the second valve body, and a spring is arranged between the adjusting seat and the first valve body; the first valve body and the second valve body are coaxially arranged, one end of the adjusting seat is in threaded connection with the first valve body, the other end of the adjusting seat is in threaded connection with the second valve body, and a spring is arranged between the adjusting seat and the first valve body; the valve core is assembled inside the first valve body, one end of the spring is connected to the adjusting seat, and the other end of the spring is sleeved on the valve core; the locking and positioning assembly is arranged on the first valve body and is configured to be capable of locking the adjusting seat. The straight-through adjustable one-way valve can realize the online adjustment of the opening pressure of the one-way valve, so that the simple regulation and control of the pressure of the whole fluid pressure system are realized, and the straight-through adjustable one-way valve has the advantages of simple structure, convenience and rapidness in operation, accuracy and reliability.
Drawings
FIG. 1 is a cross-sectional view of a conventional through-type check valve of the prior art;
FIG. 2 is a cross-sectional view of a through adjustable check valve according to an embodiment of the present invention;
fig. 3 is a sectional view of an adjusting seat according to an embodiment of the present invention.
In the figure:
1', a valve body; 2', a valve seat; 3', a valve core; 4', a spring; 5', a sealing ring;
1. a first valve body; 2. a second valve body;
3. an adjusting seat; 31. a containing groove; 32. a flow-through hole; 33. an adjustment hole; 34. a first thread groove; 35. a second thread groove; 36. a first seal groove; 37. a second seal groove;
4. a spring;
5. a valve core; 51. a starting end and a closing end; 52. a baffle plate; 53. a step;
6. locking the positioning assembly; 61. locking the screw;
7. a first seal ring; 8. and a second seal ring.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The embodiment discloses a straight-through type adjustable check valve, which has the advantages of simple structure, convenience and rapidness in operation, accuracy, reliability and the like, can realize the online adjustment of the opening pressure of the check valve, further realize the simple and convenient regulation and control of the pressure of the whole fluid pressure system, and is suitable for all industrial equipment and pipeline systems using the straight-through type check valve, such as a one-way flowing pressure container system and the like.
As shown in fig. 2, the straight-through adjustable check valve mainly comprises a first valve body 1, a second valve body 2, an adjusting seat 3, a valve core 5 and a locking positioning assembly 6. Wherein, first valve body 1, second valve body 2 and regulation seat 3 all coaxial setting, and adjust the both ends of seat 3 respectively with first valve body 1 and 2 threaded connection of second valve body to make the inside runner of this check valve be the linearity. A spring 4 is arranged between the adjusting seat 3 and the first valve body 1; the valve core 5 is assembled inside the first valve body 1, one end of the spring 4 is connected to the adjusting seat 3, and the other end of the spring is sleeved on the valve core 5; a locking and positioning assembly 6 is arranged on the first valve body 1, the locking and positioning assembly 6 being configured to be able to lock the adjustment seat 3. Through setting up locking positioning assembly 6, can realize the online regulation of check valve opening pressure, and simple structure, the operation is swift.
Specifically, locking locating component 6 is including setting up on first valve body 1 and along the screw thread through-hole that the axial of perpendicular to first valve body 1 was seted up, and wear to establish locking screw 61 in the screw thread through-hole, and locking screw 61's bottom can the butt in adjusting seat 3. In the use process of the check valve, the compression amount of the spring 4 can be controlled by only loosening the locking screw 61 and then rotating the adjusting seat 3, so that the opening pressure of the check valve is controlled, the locking screw 61 is screwed after the check valve is adjusted in place, the adjustment of the opening pressure of the check valve is realized, and the structure is simple to operate, adjustable on line, convenient, rapid, accurate and reliable.
In the present embodiment, as shown in fig. 3, the adjusting seat 3 is provided therein with an accommodating groove 31 and a flow hole 32 communicating with the accommodating groove 31, one end of the spring 4 is engaged in the accommodating groove 31, and the other end is fitted over the step 53 of the valve element 5.
Furthermore, as shown in fig. 2, a central flow passage is provided inside the first valve body 1, the valve core 5 includes an opening/closing end 51 penetrating the central flow passage, a baffle plate 52 connected to the opening/closing end 51, and the step 53 connected to the baffle plate 52, and the baffle plate 52 is used for blocking or opening the central flow passage. Preferably, the open-close end 51 is in clearance fit with the center flow passage to facilitate opening and closing of the valve core 5.
In the present embodiment, as shown in fig. 3, the outer wall of the adjustment seat 3 is provided with two seal grooves, two thread grooves, and two adjustment holes 33. Specifically, two opposite adjusting holes 33 are formed in the outer wall of the adjusting seat 3 in a direction perpendicular to the axis of the adjusting seat 3, and the adjusting holes 33 are used for inserting a force application tool to rotate the adjusting seat 3, thereby adjusting the compression amount of the spring 4.
The outer wall of the adjusting seat 3 is further provided with a first annular thread groove 34 and a second annular thread groove 35, and the first thread groove 34 and the second thread groove 35 are respectively located on two sides of the adjusting hole 33. The first screw groove 34 is adapted to be screw-coupled with the first valve body 1, and the second screw groove 35 is adapted to be screw-coupled with the second valve body 2. The first thread groove 34 and the second thread groove 35 may be an internal thread or an external thread, and accordingly, the first valve body 1 and the second valve body 2 are provided with an external thread or an internal thread, but the present embodiment is not particularly limited as long as the threaded connection between the adjustment seat 3 and the first valve body 1 and the second valve body 2 can be achieved.
In the present embodiment, the sealing performance between the adjustment seat 3 and the first and second valve bodies 1 and 2 is ensured by the seal ring. Specifically, a first sealing ring 7 is arranged between the first valve body 1 and the adjusting seat 3, and a second sealing ring 8 is arranged between the second valve body 2 and the adjusting seat 3.
Furthermore, the outer wall of the adjusting seat 3 is provided with a first annular seal groove 36 and a second annular seal groove 37, the first seal groove 36 is located on a side of the first thread groove 34 away from the second thread groove 35, the first seal groove 36 is used for accommodating the first seal ring 7, the second seal groove 37 is located on a side of the second thread groove 35 away from the first thread groove 34, and the second seal groove 37 is used for accommodating the second seal ring 8. Through setting up first seal groove 36 and second seal groove 37, can realize the firm placing of first sealing washer 7 and second sealing washer 8 to guarantee the reliability of first valve body 1 and the sealing connection who adjusts seat 3 and the reliability of the sealing connection of second valve body 2 and regulation seat 3.
The application method of the straight-through adjustable check valve provided by the embodiment comprises the following steps: when the opening pressure of the one-way valve needs to be adjusted on line, the locking screw 61 in the first valve body 1 is loosened, then a wrench is inserted into the adjusting hole 33 on the adjusting seat 3, the compression amount of the spring 4 can be adjusted by rotating the adjusting seat 3, so that the opening pressure of the one-way valve is controlled, and the locking screw 61 is screwed after the adjustment is in place, so that the adjustment of the opening pressure of the one-way valve is completed.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (9)
1. A straight-through, adjustable check valve, comprising:
a first valve body (1) and a second valve body (2);
the adjusting seat (3) is coaxially arranged with the first valve body (1) and the second valve body (2), two ends of the adjusting seat (3) are respectively in threaded connection with the first valve body (1) and the second valve body (2), and a spring (4) is arranged between the adjusting seat (3) and the first valve body (1);
the valve core (5) is assembled inside the first valve body (1), one end of the spring (4) is connected to the adjusting seat (3), and the other end of the spring is sleeved on the valve core (5);
a locking and positioning assembly (6) arranged on the first valve body (1), wherein the locking and positioning assembly (6) is configured to be capable of locking the adjusting seat (3).
2. A straight-through adjustable check valve according to claim 1, characterized in that the locking and positioning assembly (6) comprises a threaded through hole provided on the first valve body (1), and a locking screw (61) inserted into the threaded through hole, and the bottom end of the locking screw (61) can abut against the adjusting seat (3).
3. A straight-through adjustable check valve according to claim 1, wherein the interior of the adjusting seat (3) is provided with a containing groove (31) and a flow hole (32) communicated with the containing groove (31), one end of the spring (4) is clamped in the containing groove (31), and the other end is sleeved on the step (53) of the valve core (5).
4. A straight-through adjustable check valve according to claim 3, wherein a central flow passage is provided inside the first valve body (1), the valve core (5) comprises a start/stop end (51) penetrating into the central flow passage, a baffle (52) connected to the start/stop end (51), and the step (53) connected to the baffle (52), and the baffle (52) is used for blocking or opening the central flow passage.
5. A straight-through adjustable check valve according to claim 4, characterized in that the opening and closing end (51) is clearance-fitted with the central flow passage.
6. A straight-through adjustable check valve according to claim 1, characterized in that the outer wall of the adjusting seat (3) is provided with two opposite adjusting holes (33) along the direction perpendicular to the axis of the adjusting seat (3), and the adjusting holes (33) are used for inserting a force application tool to rotate the adjusting seat (3).
7. A straight-through adjustable check valve according to claim 6, characterized in that the outer wall of the adjusting seat (3) is provided with a first annular thread groove (34) and a second annular thread groove (35), the first thread groove (34) is used for being in threaded connection with the first valve body (1), the second thread groove (35) is used for being in threaded connection with the second valve body (2), and the first thread groove (34) and the second thread groove (35) are respectively positioned at two sides of the adjusting hole (33).
8. A straight-through adjustable check valve according to claim 7, characterized in that a first sealing ring (7) is arranged between the first valve body (1) and the adjusting seat (3), and a second sealing ring (8) is arranged between the second valve body (2) and the adjusting seat (3).
9. A straight-through adjustable check valve according to claim 8, wherein an annular first sealing groove (36) and an annular second sealing groove (37) are provided on an outer wall of the adjusting seat (3), the first sealing groove (36) is located on a side of the first thread groove (34) far away from the second thread groove (35), the first sealing groove (36) is used for accommodating the first sealing ring (7), the second sealing groove (37) is located on a side of the second thread groove (35) far away from the first thread groove (34), and the second sealing groove (37) is used for accommodating the second sealing ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787104.6U CN211145467U (en) | 2019-10-23 | 2019-10-23 | Straight-through type adjustable one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921787104.6U CN211145467U (en) | 2019-10-23 | 2019-10-23 | Straight-through type adjustable one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145467U true CN211145467U (en) | 2020-07-31 |
Family
ID=71774215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921787104.6U Active CN211145467U (en) | 2019-10-23 | 2019-10-23 | Straight-through type adjustable one-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145467U (en) |
-
2019
- 2019-10-23 CN CN201921787104.6U patent/CN211145467U/en active Active
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