CN211624299U - Check valve and opening adjusting mechanism thereof - Google Patents
Check valve and opening adjusting mechanism thereof Download PDFInfo
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- CN211624299U CN211624299U CN201922450284.5U CN201922450284U CN211624299U CN 211624299 U CN211624299 U CN 211624299U CN 201922450284 U CN201922450284 U CN 201922450284U CN 211624299 U CN211624299 U CN 211624299U
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Abstract
The utility model provides a check valve and an opening adjusting mechanism thereof, which relates to the technical field of check valve components and comprises a first rotating shaft, a second rotating shaft and an adjusting mechanism; one end of the first rotating shaft is used for being connected with the valve clack, the other end of the first rotating shaft is sleeved with the second rotating shaft, and the second rotating shaft is provided with a limiting structure which is used for limiting the rotating range of the first rotating shaft relative to the second rotating shaft so as to enable the first rotating shaft to rotate in the limited range; first pivot and second pivot cartridge are in the valve body passageway of valve body, the one end that first pivot was kept away from in the second pivot is stretched out the valve body passageway after and is connected with adjustment mechanism, adjustment mechanism is used for driving the second pivot and rotates, during the in-service use, utilize adjustment mechanism to drive the second pivot and rotate, thereby adjust the position of the epaxial limit structure of second pivot, so that first pivot is at spacing within range internal rotation, thereby the aperture of the valve clack of control and first pivot connection, thereby reach the purpose of adjusting check valve's valve clack aperture size.
Description
Technical Field
The utility model belongs to the technical field of the check valve subassembly technique and specifically relates to a check valve and aperture adjustment mechanism thereof is related to.
Background
The check valve is also called a one-way valve or a check valve and is used for preventing media in the pipeline from flowing backwards. The check valve belongs to the automatic valve class, is mainly used on the pipeline of medium one-way flow, only allows medium to flow to one direction to prevent the accident.
The existing check valve is a valve which is used for preventing a medium from flowing backwards by automatically opening and closing a valve clack depending on the flowing of the medium, and the valve clack is rotatably connected to a valve seat through a rocker arm. Typically such valves are self-acting, with the flap opening under the pressure of a fluid flowing in one direction; when the fluid flows in the reverse direction, the valve flap is closed by the fluid pressure and the self weight of the valve flap to shut off the flow, but the opening between the valve flap and the valve port of such a check valve cannot be adjusted, and therefore the flow rate of the check valve cannot be controlled.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a check valve and aperture adjustment mechanism thereof to solve current check valve and only can rely on medium itself to flow in the valve and automatic opening, the valve clack of closing, and the unable adjustment of aperture between the valve clack of check valve and the valve port, therefore the technical problem of the flow of uncontrollable check valve.
The utility model provides a check valve opening degree adjusting mechanism, which comprises a first rotating shaft, a second rotating shaft and an adjusting mechanism;
one end of the first rotating shaft is used for being connected with the valve clack, the other end of the first rotating shaft is sleeved with the second rotating shaft, and the second rotating shaft is provided with a limiting structure which is used for limiting the rotating range of the first rotating shaft relative to the second rotating shaft so as to enable the first rotating shaft to rotate within the limited range;
the first rotating shaft and the second rotating shaft are inserted in a valve body channel of the valve body, one end, far away from the first rotating shaft, of the second rotating shaft extends out of the valve body channel and then is connected with the adjusting mechanism, and the adjusting mechanism is used for driving the second rotating shaft to rotate.
Furthermore, an inner cavity with an outward opening is formed in one end, facing the first rotating shaft, of the second rotating shaft, and one end, far away from the valve clack, of the first rotating shaft is inserted into the inner cavity;
the limiting structure comprises a limiting groove which is arranged on the side wall of the inner cavity and is recessed from the side wall of the inner cavity to the center of the inner cavity; the first rotating shaft is provided with a convex part corresponding to the limiting groove; the protruding part is inserted into the limiting groove and can rotate along the limiting groove in the circumferential direction of the first rotating shaft; or
An inner cavity with an opening facing the second rotating shaft is formed in one end, far away from the valve clack, of the first rotating shaft, and one end, facing the first rotating shaft, of the second rotating shaft is inserted into the inner cavity;
be provided with the spacing groove sunken to inner chamber center dorsad on the lateral wall of inner chamber, limit structure is including setting up the epaxial with of second bulge that the spacing groove corresponds, the spacing groove cover is established on the bulge, the spacing groove can for the bulge is in the circumferential direction of first pivot.
Furthermore, the limiting groove is an arc-shaped groove, extends along the circumferential direction of the inner cavity, and the length of the arc-shaped groove is one quarter of the circumferential length.
Furthermore, a pressure relief groove is arranged in the arc-shaped groove, and the pressure relief groove is arranged at two opposite ends of the arc-shaped groove along the extending direction of the arc-shaped groove.
Furthermore, be provided with first keyway in the first pivot, install the spacing key in the first keyway, the up end protrusion in the lateral wall of first pivot of spacing key forms the bulge.
Furthermore, adjustment mechanism includes carousel and handle, the carousel with the second pivot is kept away from the one end of first pivot is connected, the handle with the carousel is connected for the drive the carousel rotates, thereby drives the second pivot rotates.
Further, check valve aperture adjustment mechanism includes seal assembly, seal assembly cover is established in the second pivot, and be located the valve body with between the carousel, be used for with the valve body passageway is sealed.
Furthermore, a backing ring is sleeved on the first rotating shaft.
Further, the hardness of the backing ring is less than that of the first rotating shaft.
The utility model provides a check valve, including valve clack, rocking arm and check valve aperture adjustment mechanism.
The utility model provides a check valve opening degree adjusting mechanism, which comprises a first rotating shaft, a second rotating shaft and an adjusting mechanism; one end of the first rotating shaft is used for being connected with the valve clack, the other end of the first rotating shaft is sleeved with the second rotating shaft, and the second rotating shaft is provided with a limiting structure which is used for limiting the rotating range of the first rotating shaft relative to the second rotating shaft so as to enable the first rotating shaft to rotate within the limited range; the first rotating shaft and the second rotating shaft are inserted into a valve body channel of a valve body, one end, far away from the first rotating shaft, of the second rotating shaft extends out of the valve body channel and then is connected with the adjusting mechanism, the adjusting mechanism is used for driving the second rotating shaft to rotate, and during actual use, the adjusting mechanism is used for driving the second rotating shaft to rotate, so that the position of the limiting structure on the second rotating shaft is adjusted, the first rotating shaft rotates within a limiting range, the opening degree of a valve clack connected with the first rotating shaft is controlled, the position of the limiting structure on the second rotating shaft is controlled through the adjusting mechanism, and the purpose of adjusting the opening degree of the check valve is achieved.
The utility model provides a check valve, including valve clack, rocking arm and check valve aperture adjustment mechanism. The valve clack with the one end of rocking arm is connected, and can rotate along with the rocking arm, the rocking arm with check valve aperture adjustment mechanism's first pivot is connected, through check valve aperture adjustment mechanism, can adjust the aperture of the valve clack of check valve realizes the regulation of the interior fluidic maximum flow of check valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of a check valve opening degree adjusting mechanism provided in an embodiment of the present invention;
fig. 2 is a structural diagram of a first rotating shaft of a check valve opening degree adjusting mechanism provided in the embodiment of the present invention;
3 FIG. 3 3 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 32 3; 3
Fig. 4 is a structural diagram of a second rotating shaft of the check valve opening degree adjusting mechanism provided in the embodiment of the present invention;
fig. 5 is a front view of a second rotating shaft of the check valve opening adjusting mechanism according to the embodiment of the present invention;
fig. 6 is a side view of a second rotating shaft of the check valve opening adjusting mechanism according to the embodiment of the present invention;
fig. 7 is a structural diagram of a rotary table of a check valve opening degree adjusting mechanism provided in the embodiment of the present invention;
fig. 8 is a top view of a check valve according to an embodiment of the present invention;
fig. 9 is a cross-sectional view of a check valve according to an embodiment of the present invention.
Icon: 10-a valve body; 20-a rocker arm; 30-a valve flap; 40-check valve opening degree regulating mechanism; 100-a first shaft; 110 — a first keyway; 111-a limit key; 120-a second keyway; 200-a second rotating shaft; 210-lumen; 211-a limiting groove; 2111-a first linear portion; 2112-arc section; 2113-second straight section; 212-relief groove; 220-a third keyway; 300-a turntable; 310-an axial through hole; 311-fourth keyway; 320-radial through hole; 400-a handle; 500-backing ring; 600-sealing disc; 700-locking disk.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1-7, the check valve opening adjusting mechanism provided by the present invention comprises a first rotating shaft 100, a second rotating shaft 200 and an adjusting mechanism.
One end of the first rotating shaft 100 is used for being connected with the valve flap 30, the other end of the first rotating shaft 100 is sleeved with the second rotating shaft 200, and the second rotating shaft 200 is provided with a limiting structure for limiting the rotating range of the first rotating shaft 100 relative to the second rotating shaft 200, so that the first rotating shaft 100 rotates within the limited range.
The first rotating shaft 100 and the second rotating shaft 200 are inserted into the valve body passage of the valve body 10, one end of the second rotating shaft 200, which is far away from the first rotating shaft 100, extends out of the valve body passage and then is connected with the adjusting mechanism, and the adjusting mechanism is used for driving the second rotating shaft 200 to rotate.
Specifically, the valve flap 30 of the check valve is connected to one end of the rocker arm 20, and the other end of the rocker arm 20 is hinged to the valve body 10 via the first rotating shaft 100. The rocker arm 20 is provided with a connecting through hole, a connecting groove is arranged in the connecting through hole, the first rotating shaft 100 is provided with a second key groove 120 corresponding to the connecting groove, and the first rotating shaft 100 and the rocker arm 20 are connected together through a connecting key arranged in the connecting groove and the second key groove 120.
During the actual use, utilize adjustment mechanism to drive second pivot 200 rotates to adjust on the second pivot 200 limit structure's position, so that first pivot 100 rotates in spacing within range, thereby control with the aperture of the valve clack 30 that first pivot 100 is connected, through the position of the upper limit structure of adjustment mechanism control second pivot 200, thereby reach the purpose of adjusting the valve clack 30 aperture size of check valve.
Further, an inner cavity 210 with an outward opening is formed at one end of the second rotating shaft 200 facing the first rotating shaft 100, and one end of the first rotating shaft 100 far away from the valve flap 30 is inserted into the inner cavity 210;
the limiting structure comprises a limiting groove 211 which is arranged on the side wall of the inner cavity 210 and is recessed from the side wall of the inner cavity 210 to the center of the inner cavity 210; the first rotating shaft 100 is provided with a protruding part corresponding to the limiting groove 211; the protruding part is inserted into the limiting groove 211, and the protruding part can rotate along the limiting groove 211 in the circumferential direction of the first rotating shaft 100; alternatively, an inner cavity 210 with an opening facing the second rotating shaft 200 is disposed at an end of the first rotating shaft 100 away from the valve flap 30, and an end of the second rotating shaft 200 facing the first rotating shaft 100 is inserted into the inner cavity 210.
Be provided with spacing groove 211 sunken to inner chamber 210 center dorsad on the lateral wall of inner chamber 210, limit structure is including setting up on the second pivot 200 with the bulge that spacing groove 211 corresponds, spacing groove 211 cover is established on the bulge, spacing groove 211 can for the bulge is in the circumferential direction of first pivot 100.
Specifically, in this embodiment, an inner cavity 210 is disposed at an end of the second rotating shaft 200 facing the first rotating shaft 100, an opening of the inner cavity 210 is outward, the circumferential adjustment structure includes a limiting groove 211 disposed on the inner cavity 210 and a protruding portion disposed on the first rotating shaft 100 and corresponding to the limiting groove 211, an outward recessed limiting groove 211 is disposed on a sidewall of the inner cavity 210, a protruding portion is disposed at an end of the first rotating shaft 100 facing the inner cavity 210, and the protruding portion is inserted into the limiting groove 211 and can rotate in the limiting groove 211.
Because the first rotating shaft 100 is connected with the rocker arm 20, the first rotating shaft 100 can rotate along with the rocker arm 20, and when the valve assembly is used, the second rotating shaft 200 is rotated, so that the limiting groove 211 is positioned on a rotating path of the bulge, the bulge is stopped by utilizing the side edge of the limiting groove 211, the rotating angle of the first rotating shaft 100 is limited, the rotating angle of the rocker arm 20 is controlled, and the opening degree of the valve clack 30 connected with the rocker arm 20 is controlled.
Further, the limiting groove 211 is an arc-shaped groove extending along the circumferential direction of the inner cavity 210, and the length of the arc-shaped groove is a quarter of the circumferential length.
Specifically, the limiting groove 211 arranged on the inner cavity 210 is an arc-shaped groove, and the arc-shaped groove includes a first straight line portion 2111, an arc-shaped portion 2112 and a second straight line portion 2113 which are connected in sequence, wherein the first straight line portion 2111 is perpendicular to the second straight line portion 2113, and the first straight line portion 2111, the arc-shaped portion 2112 and the second straight line portion 2113 enclose the arc-shaped groove.
Further, a pressure relief groove 212 is arranged in the arc-shaped groove, and along the extending direction of the arc-shaped groove, the pressure relief groove 212 is arranged at two opposite ends of the arc-shaped groove.
Specifically, the pressure relief groove 212 is used to vent the gas or lubricant from the protrusion and the arc-shaped groove, so as to prevent the gas or lubricant from blocking due to the failure of the vent when the protrusion rotates in the arc-shaped groove, and slow down the closing of the valve flap 30.
One of the relief grooves 212 is provided at the intersection of the first straight portion 2111 and the arc portion 2112, and the other relief groove 212 is provided at the intersection of the second straight portion 2113 and the arc portion 2112 for discharging gas or lubricating oil between the projecting portion and the arc groove.
In this embodiment, the pressure relief groove 212 may be an arc-shaped groove.
It should be noted that the pressure relief groove 212 may have other shapes, which can perform the function of pressure relief, so that the protrusion can smoothly rotate in the arc-shaped groove.
Further, a first key groove 110 is formed in the first rotating shaft 100, a limit key 111 is installed in the first key groove 110, and an upper end surface of the limit key 111 protrudes out of an outer side wall of the first rotating shaft 100 to form the protruding portion.
In this embodiment, a first key groove 110 is formed in a side wall of the first rotating shaft 100 extending from the inner cavity 210, a limit key 111 is installed in the first key groove 110, an upper end surface of the limit key 111 protrudes out of an outer side wall of the first rotating shaft 100, and can be inserted into the arc-shaped groove and rotate in the arc-shaped groove, and a rotation position of the protruding portion is limited by the first straight portion 2111 and the second straight portion 2113.
Further, the adjusting mechanism includes a rotating disc 300 and a handle 400, the rotating disc 300 is connected with one end of the second rotating shaft 200 far away from the first rotating shaft 100, and the handle 400 is connected with the rotating disc 300 and is used for driving the rotating disc 300 to rotate, so as to drive the second rotating shaft 200 to rotate.
Specifically, adjustment mechanism includes carousel 300 and handle 400, and carousel 300 and second pivot 200 keep away from the one end of first pivot 100 is connected, and handle 400 is connected on the lateral wall of carousel 300, makes carousel 300 rotate through rotating handle 400 to drive second pivot 200 and rotate, adjust the position of spacing groove 211, be used for injecing the turned angle of bulge, so that first pivot 100 rotates at spacing within range, thereby reaches the purpose of adjusting the valve clack 30 aperture of check valve.
In this embodiment, the rotary plate 300 is a cylindrical member, an axial through hole 310 penetrating through upper and lower end surfaces is formed in the rotary plate 300, a third key groove 220 is formed in a side wall of one end of the second rotary shaft 200, which is far away from the first rotary shaft 100, a fourth key groove 311 corresponding to the third key groove 220 is formed in an inner wall of the axial through hole 310, and the second rotary shaft 200 and the rotary plate 300 are connected by a mounting key inserted into the third key groove 220 and the fourth key groove 311.
The rotary disc 300 is provided with a radial through hole 320 communicated with the axial through hole 310, the radial through hole 320 penetrates through the inner wall and the outer wall of the rotary disc 300, and the handle 400 is inserted into the radial through hole 320.
Further, check valve opening adjustment mechanism 40 includes seal assembly, seal assembly cover is established on the second pivot 200, and is located the valve body 10 with between the carousel 300, be used for with the valve body passageway is sealed.
Specifically, seal assembly includes sealed dish 600 and locking dish 700, sealed dish 600 sets up and keeps away from at the valve body passageway the one end of rocking arm 20, and sealed dish 600 is connected with valve body 10, and sealed dish 600 cover is established on second pivot 200, second pivot 200 can rotate for sealed dish 600.
The junction of the sealing plate 600 and the valve body passage is provided with a first seal for sealing between the sealing plate 600 and the valve body passage.
The joint of the sealing plate 600 and the second rotating shaft 200 is provided with a second sealing member for sealing between the sealing plate 600 and the second rotating shaft 200.
Locking disc 700 sets up between sealed dish 600 and carousel 300, and locking disc 700 is connected with sealed dish 600, and locking disc 700 also overlaps and establish on the second pivot 200, can be provided with the scale on the locking disc 700, this scale corresponds with the arc wall, is used for confirming the aperture size of valve clack 30.
Further, a backing ring 500 is sleeved on the first rotating shaft 100.
Specifically, a backing ring 500 is provided between the outer wall of the first shaft 100 and the valve body passage to make the gap between the first shaft 100 and the valve body passage uniform, and at the same time, to reduce the wear between the first shaft 100 and the valve body passage.
Further, the hardness of the backing ring 500 is less than that of the first shaft 100.
Specifically, the hardness of the backing ring 500 is less than that of the first rotating shaft 100, and the hardness of the backing ring 500 is also less than that of the valve body 10, so that in practical use, the backing ring 500 is firstly worn and can be replaced after being worn to a certain extent, the first rotating shaft 100 and the valve body 10 cannot be worn, and the service life of the check valve is prolonged.
The utility model provides a check valve aperture adjustment mechanism 40 is connected with valve clack 30 on rocking arm 20, and rocking arm 20 is connected with valve body 10 through first pivot 100, and first pivot 100 is kept away from the one end of rocking arm 20 is installed the key, and the one end that first pivot 100 is connected with the key is inserted in the inner chamber 210 of second pivot 200, and the key is in the arc wall of inner chamber 210, through rotating second pivot 200, when the first straight line portion 2111 of arc wall corresponds with the closed position of valve clack 30, and second straight line portion 2113 corresponds with the biggest open position of valve clack 30, the aperture of check valve is the biggest; by rotating the second rotating shaft 200 counterclockwise, when the valve flap 30 rotates from the closed position to the maximum opening position, the key on the first rotating shaft 100 correspondingly rotates in the arc-shaped groove, and the valve flap 30 cannot rotate to the maximum opening position because of being stopped by the second straight portion 2113, and by adjusting the position of the limiting groove 211 on the second rotating shaft 200, the opening degree of the valve flap 30 can be adjusted, thereby achieving the purpose of controlling the flow regulation of the check valve.
As shown in fig. 8 and 9, the check valve provided by the present invention comprises a valve flap 30, a rocker arm 20 and the check valve opening adjusting mechanism 40. The valve flap 30 with the one end of rocking arm 20 is connected, and can rotate along with rocking arm 20, rocking arm 20 with the first pivot 100 of check valve aperture adjustment mechanism 40 is connected, through check valve aperture adjustment mechanism 40, can adjust the aperture of the valve flap 30 of check valve realizes the regulation of the interior fluidic maximum flow of check valve.
To sum up, the check valve opening adjusting mechanism 40 provided by the present invention comprises a first rotating shaft 100, a second rotating shaft 200 and an adjusting mechanism; one end of the first rotating shaft 100 is used for being connected with the valve flap 30, the other end of the first rotating shaft 100 is sleeved with the second rotating shaft 200, and the second rotating shaft 200 is provided with a limiting structure for limiting the rotating range of the first rotating shaft 100 relative to the second rotating shaft 200 so as to enable the first rotating shaft 100 to rotate within the limited range; the first rotating shaft 100 and the second rotating shaft 200 are inserted into the valve body passage of the valve body 10, one end of the second rotating shaft 200, which is far away from the first rotating shaft 100, extends out of the valve body passage and then is connected with the adjusting mechanism, the adjusting mechanism is used for driving the second rotating shaft 200 to rotate, when in actual use, the adjusting mechanism is used for driving the second rotating shaft 200 to rotate, so that the position of the limiting structure on the second rotating shaft 200 is adjusted, the first rotating shaft 100 rotates in a limiting range, the opening degree of the valve clack 30 connected with the first rotating shaft 100 is controlled, the position of the limiting structure on the second rotating shaft 200 is controlled through the adjusting mechanism, and the purpose of adjusting the opening degree of the valve clack 30 of the check valve is achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The opening adjusting mechanism of the check valve is characterized by comprising a first rotating shaft, a second rotating shaft and an adjusting mechanism;
one end of the first rotating shaft is used for being connected with the valve clack, the other end of the first rotating shaft is sleeved with the second rotating shaft, and the second rotating shaft is provided with a limiting structure which is used for limiting the rotating range of the first rotating shaft relative to the second rotating shaft so as to enable the first rotating shaft to rotate within the limited range;
the first rotating shaft and the second rotating shaft are inserted in a valve body channel of the valve body, one end, far away from the first rotating shaft, of the second rotating shaft extends out of the valve body channel and then is connected with the adjusting mechanism, and the adjusting mechanism is used for driving the second rotating shaft to rotate.
2. The opening regulating mechanism of the check valve as claimed in claim 1, wherein an inner cavity with an outward opening is formed at one end of the second rotating shaft facing the first rotating shaft, and one end of the first rotating shaft far away from the valve flap is inserted into the inner cavity;
the limiting structure comprises a limiting groove which is arranged on the side wall of the inner cavity and is recessed from the side wall of the inner cavity to the center of the inner cavity; the first rotating shaft is provided with a convex part corresponding to the limiting groove; the protruding part is inserted into the limiting groove and can rotate along the limiting groove in the circumferential direction of the first rotating shaft; or
An inner cavity with an opening facing the second rotating shaft is formed in one end, far away from the valve clack, of the first rotating shaft, and one end, facing the first rotating shaft, of the second rotating shaft is inserted into the inner cavity;
be provided with the spacing groove sunken to inner chamber center dorsad on the lateral wall of inner chamber, limit structure is including setting up the epaxial with of second bulge that the spacing groove corresponds, the spacing groove cover is established on the bulge, the spacing groove can for the bulge is in the circumferential direction of first pivot.
3. The check valve opening degree adjusting mechanism according to claim 2, wherein the limiting groove is an arc-shaped groove extending along a circumferential direction of the inner cavity, and a length of the arc-shaped groove is a quarter of a circumference.
4. The opening degree adjusting mechanism of the check valve according to claim 3, wherein a pressure relief groove is provided in the arc-shaped groove, and the pressure relief groove is provided at opposite ends of the arc-shaped groove along an extending direction of the arc-shaped groove.
5. The opening adjusting mechanism of a check valve as claimed in claim 2, wherein the first rotating shaft is provided with a first key groove, a limit key is installed in the first key groove, and an upper end surface of the limit key protrudes from an outer side wall of the first rotating shaft to form the protruding portion.
6. The opening adjusting mechanism of check valve as claimed in claim 1, wherein the adjusting mechanism comprises a rotary disc and a handle, the rotary disc is connected to an end of the second shaft far from the first shaft, and the handle is connected to the rotary disc for driving the rotary disc to rotate, thereby driving the second shaft to rotate.
7. The check valve opening degree adjusting mechanism of claim 6, wherein the check valve opening degree adjusting mechanism comprises a sealing assembly, the sealing assembly is sleeved on the second rotating shaft and is located between the valve body and the rotating disc, and the sealing assembly is used for sealing the valve body channel.
8. The opening degree adjusting mechanism of a check valve according to claim 7, wherein a backing ring is sleeved on the first rotating shaft.
9. The check valve opening degree adjusting mechanism according to claim 8, wherein the grommet has a hardness less than that of the first rotating shaft.
10. A check valve comprising a valve flap, a rocker arm, and the check valve opening degree adjustment mechanism of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450284.5U CN211624299U (en) | 2019-12-30 | 2019-12-30 | Check valve and opening adjusting mechanism thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922450284.5U CN211624299U (en) | 2019-12-30 | 2019-12-30 | Check valve and opening adjusting mechanism thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211624299U true CN211624299U (en) | 2020-10-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922450284.5U Active CN211624299U (en) | 2019-12-30 | 2019-12-30 | Check valve and opening adjusting mechanism thereof |
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| Country | Link |
|---|---|
| CN (1) | CN211624299U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855998A (en) * | 2021-02-05 | 2021-05-28 | 西南石油大学 | Visual locking swing check valve |
-
2019
- 2019-12-30 CN CN201922450284.5U patent/CN211624299U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855998A (en) * | 2021-02-05 | 2021-05-28 | 西南石油大学 | Visual locking swing check valve |
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