CN217328620U - Check valve with buffer function - Google Patents
Check valve with buffer function Download PDFInfo
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- CN217328620U CN217328620U CN202220658984.2U CN202220658984U CN217328620U CN 217328620 U CN217328620 U CN 217328620U CN 202220658984 U CN202220658984 U CN 202220658984U CN 217328620 U CN217328620 U CN 217328620U
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- valve
- buffer block
- annular
- seat
- clack
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Abstract
The utility model discloses a check valve with a buffer function, which comprises a valve body and a valve cover, wherein the valve body is fixedly connected with the valve cover through a bolt; the valve body is provided with a water inlet and a water outlet, and the water inlet extends inwards to form a valve seat; a rocker arm is arranged in the valve body, the rocker arm is rotatably arranged on a pin shaft, and a torsional spring is arranged on the pin shaft; the rocker arm is provided with a valve clack, and the valve clack is tightly matched with the valve seat; still including buffering the subassembly, the buffering subassembly includes an annular mount pad, and the annular mount pad is fixed in the disk seat outside, and annular mount pad is equipped with the annular mounting groove towards valve clack one side, installs a convex buffer block in the annular mounting groove, and the buffer block inboard is equipped with the spring. The utility model discloses set up the buffering subassembly in the disk seat outside, utilize the buffer block that is higher than the disk seat to reduce the impact force when the valve clack is closed, alleviate the wearing and tearing problem between valve clack and the sealed face of disk seat, prolong the life of check valve.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to check valve with buffer function.
Background
The check valve is a valve which automatically opens and closes a valve flap by the flow of a medium and is used for preventing the medium from flowing backwards, and is also called a check valve, a one-way valve, a reverse flow valve and a back pressure valve. The check valve is an automatic valve and mainly used for preventing medium from flowing backwards, preventing the pump and a driving motor from reversing and discharging container medium.
The check valve includes a valve flap and a spring, and the elastic force applied to the valve flap by the spring presses the valve flap toward a valve seat, thereby forming a seal. When the valve body is filled with liquid flowing in the positive direction and the impact force of the liquid is greater than the elastic force applied by the spring, the valve clack is separated from the valve seat, so that the check valve is conducted; when the impact force of the liquid flowing in the valve body in the positive direction is weakened or stopped, the valve clack is quickly contacted with the valve seat under the elastic force of the spring, so that the check valve is stopped. However, at the moment when the valve clack is closed, the impact of the sealing surface of the valve clack on the sealing surface of the valve seat of the valve body is very large, so that the sealing surface is worn too early and too fast, and the service life of the check valve is influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a check valve with buffer function can slow down the valve clack and to the disk seat impact force, prolongs check valve's life.
Therefore, the technical scheme of the utility model is that: a check valve with a buffering function comprises a valve body and a valve cover, wherein the valve body is fixedly connected with the valve cover through a bolt; the valve body is provided with a water inlet and a water outlet, and the water inlet extends inwards to form a valve seat; a rocker arm is arranged in the valve body, the rocker arm is rotatably arranged on a pin shaft, and a torsional spring is arranged on the pin shaft; the rocker arm is provided with a valve clack, and the valve clack is tightly matched with the valve seat; still including buffering the subassembly, the buffering subassembly includes an annular mount pad, and the annular mount pad is fixed in the disk seat outside, and annular mount pad is equipped with the annular mounting groove towards valve clack one side, installs a convex buffer block in the annular mounting groove, and the buffer block inboard is equipped with the spring.
When the valve body is filled with liquid flowing in the positive direction and the impact force of the liquid is greater than the acting force applied to the rocker arm by the torsion spring, the valve clack is separated from the valve seat, so that the check valve is conducted; under the condition of no stress, the buffer block is higher than the valve seat under the action of the spring; therefore, when the liquid impact force of forward flow weakens or stops in the valve body, the valve clack rotates towards the disk seat again under the effect of torsional spring, and contact with the valve clack takes precedence, then the valve clack is greater than the effort of the inboard spring of buffer block with the power of buffer block, the buffer block can remove to the annular mounting groove, the disk seat still can be plugged up to the valve clack, but the buffer block has alleviated the impact force of valve clack to the disk seat, the wearing and tearing between valve clack, the disk seat have been avoided, the life of extension check valve.
Preferably, an annular step surface is arranged at the end part of the valve seat, a plurality of positioning holes are formed in the annular step surface, a plurality of positioning pins are arranged on the annular mounting seat, the annular mounting seat is fixed on the annular step surface of the valve seat, and the positioning pins are inserted into the positioning holes. A step surface is processed on the outer side of the valve seat, the buffering assembly can be installed on the step surface, and the buffering assembly is installed on the outer side of the valve seat, so that the space of a water flow channel in the valve seat cannot be occupied, and the flow speed of the check valve during conduction cannot be influenced.
Preferably, the buffer block is made of rubber and is of an annular structure as a whole; one side of the buffer block, which faces the valve clack, is provided with an arc-shaped bulge, the arc-shaped bulge is higher than the edge of the valve seat, and the arc-shaped bulge is abutted to the valve clack; and a sealing ring is arranged in the middle of the valve clack and is tightly matched with the valve seat through hole. The arc-shaped bulge of the buffer block can reduce the impact force of the valve clack and avoid the collision between the valve clack and the valve seat.
Preferably, the buffer block inboard is equipped with a plurality of springs, and spring one end is fixed on the buffer block, and the other end is fixed in the annular mounting groove, and the buffer block can follow the annular mounting groove and remove. The springs are in a compressed state, and the sum of the elastic forces of all the springs is smaller than the acting force of the torsion spring on the valve clack, so that the buffer block only plays a role in slowing down the closing speed of the valve clack, and the sealing degree of the closed valve clack cannot be influenced.
Preferably, the upper end of the valve body is provided with a mounting opening, and the valve cover is fixed at the mounting opening; the round pin axle rotates to be installed in the department of meeting of valve body installing port and water inlet, and the department of meeting of valve body installing port and delivery port is equipped with the stopper, and the stopper is the spherical piece of rubber material. The valve clack is rotated around the round pin axle after receiving forward rivers impact, opens towards delivery port one side, then is spacing by the stopper, and the stopper can prevent that the valve clack open position is too high and can't be closed. The stopper of rubber material is difficult by the corruption, and when conflicting with the valve clack, valve clack can not be damaged to both's effort.
Compared with the prior art, the beneficial effects of the utility model are that: the buffer assembly is arranged on the outer side of the valve seat, and the buffer block higher than the valve seat is utilized to reduce the impact force when the valve clack is closed, so that the valve clack is prevented from being impacted with the valve seat, the abrasion problem between the valve clack and the sealing surface of the valve seat is reduced, and the service life of the check valve is prolonged; the limiting block in the valve body can limit the opening height of the valve clack, and the valve clack can be guaranteed to be smoothly closed.
Drawings
The following detailed description is made with reference to the accompanying drawings and embodiments of the present invention
Fig. 1 is a schematic view of the closed state of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
fig. 3 is a schematic view of the open state of the present invention;
FIG. 4 is a cross-sectional view of the structure of the cushion assembly of the present invention;
fig. 5 is a schematic structural diagram of the buffer assembly of the present invention.
Labeled as: the valve comprises a valve body 1, a mounting opening 11, a water inlet 12, a water outlet 13, a valve cover 2, a bolt 3, a valve seat 4, an annular step surface 41, a rocker arm 5, a pin shaft 6, a limiting block 7, a valve clack 8, a buffering assembly 9, the buffering assembly 9, an annular mounting seat 91, a buffering block 92, a spring 93, a positioning pin 94, an annular mounting groove 95, an arc-shaped bulge 96 and a sealing ring 10.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.
See the drawings. The check valve with the buffering function comprises a valve body 1 and a valve cover 2, wherein the valve body 1 is fixedly connected with the valve cover 2 through a bolt 3; the upper end of the valve body 1 is provided with a mounting opening 11, and the valve cover 2 is fixed at the mounting opening 11; the valve body 1 is provided with a water inlet 12 and a water outlet 13, and the water inlet 12 extends inwards to form the valve seat 4; a rocker arm 5 is arranged in the valve body 1, the rocker arm 5 is rotatably arranged on a pin shaft 6, and a torsional spring is arranged on the pin shaft 6; the round pin axle 6 rotates and installs the department of meeting at valve body installing port and water inlet, and the department of meeting of valve body installing port and delivery port is equipped with stopper 7, and stopper 7 is the spherical piece of rubber material. The stopper can prevent that the valve clack open position is too high and can't be closed, and the stopper of rubber material is difficult by corroding, and when contradicting with the valve clack, valve clack can not be damaged to both's effort.
The rocker arm 5 is provided with a valve clack 8, and the valve clack 8 can be tightly attached to the valve seat 4 under the action of the torsion spring; still install buffering subassembly 9 on the disk seat, buffering subassembly 9 includes annular mount pad 91, buffer block 92 and spring 93, 4 tip of disk seat are equipped with an annular step face 41, are equipped with a plurality of locating holes on the annular step face 41, annular mount pad 91 is equipped with a plurality of locating pins 94 towards annular step face one side, and in the locating hole was inserted to the locating pin, annular mount pad 91 was fixed on the annular step face of disk seat 4. The buffering component is arranged on the outer side of the valve seat, the space of a water flow channel in the valve seat cannot be occupied, and the flow speed of the check valve during conduction cannot be influenced.
An annular mounting groove 95 is formed in one side, facing the valve clack 8, of the annular mounting seat 91, a buffer block 92 is arranged in the annular mounting groove 95, the buffer block 92 is made of rubber, and the whole annular structure is formed; be equipped with a plurality of springs 93 in the annular mounting groove, the spring is compression state, and spring 93 one end is fixed on buffer block 92, and the other end is fixed in annular mounting groove 95, and the buffer block can be followed the annular mounting groove and removed. The outside of buffer block 92 is arc-shaped protrusion 96, and under the action of the spring, arc-shaped protrusion 96 is higher than the edge of valve seat 4, therefore, when the valve clack is closed, the arc-shaped protrusion will be first abutted against the valve clack. And a sealing ring 10 is arranged in the middle of the valve clack 8, and the sealing ring 10 can be plugged into the through hole of the valve seat 4 and is tightly matched with the valve seat. The springs are in a compressed state, and the sum of the elastic forces of all the springs is smaller than the acting force of the torsion spring on the valve clack, so that the buffer block only plays a role in slowing down the closing speed of the valve clack, and the sealing degree of the closed valve clack cannot be influenced.
The check valve is arranged on the pipeline, liquid flows in from the water inlet 12 in the positive direction, when the impact force of the liquid is larger than the acting force applied to the rocker arm by the torsion spring, the valve clack 8 is separated from the valve seat 4, and the valve clack rotates upwards around the pin shaft under the action of the impact force of the liquid and abuts against the limiting block 7; and the liquid flows out from the water outlet 13 through the valve seat, and the check valve realizes positive conduction.
When the impact force of the liquid flowing in the valve body in the positive direction is weakened or stopped, the valve clack 8 rotates towards the valve seat 4 again under the action of the torsion spring, and under the condition of no stress, the buffer block 92 is higher than the valve seat 4 under the action of the spring 93; therefore, the buffer block 92 contacts with the valve clack 8 first, and the valve clack gives the effort that the power of buffer block is greater than the inboard spring of buffer block, and the valve clack can promote the buffer block and can move to the annular mounting groove is inboard, and simultaneously, the sealing washer on the valve clack is plugged into disk seat through-hole department, and the check valve realizes reversing ending.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A check valve with a buffering function comprises a valve body and a valve cover, wherein the valve body is fixedly connected with the valve cover through a bolt; the valve body is provided with a water inlet and a water outlet, and the water inlet extends inwards to form a valve seat; the method is characterized in that: a rocker arm is arranged in the valve body, the rocker arm is rotatably arranged on a pin shaft, and a torsional spring is arranged on the pin shaft; the rocker arm is provided with a valve clack, and the valve clack is tightly matched with the valve seat; still including buffering the subassembly, the buffering subassembly includes an annular mount pad, and the annular mount pad is fixed in the disk seat outside, and annular mount pad is equipped with the annular mounting groove towards valve clack one side, installs a convex buffer block in the annular mounting groove, and the buffer block inboard is equipped with the spring.
2. A check valve having a buffering function as claimed in claim 1, wherein: the end part of the valve seat is provided with an annular step surface, the annular step surface is provided with a plurality of positioning holes, the annular mounting seat is provided with a plurality of positioning pins, the annular mounting seat is fixed on the annular step surface of the valve seat, and the positioning pins are inserted into the positioning holes.
3. A check valve having a buffering function as claimed in claim 1, wherein: the buffer block is made of rubber and is of an annular structure as a whole; one side of the buffer block, which faces the valve clack, is provided with an arc-shaped bulge, the arc-shaped bulge is higher than the edge of the valve seat, and the arc-shaped bulge is abutted to the valve clack; and a sealing ring is arranged in the middle of the valve clack and is tightly matched with the valve seat through opening.
4. A check valve having a buffering function as claimed in claim 1, wherein: the buffer block inboard is equipped with a plurality of springs, and spring one end is fixed on the buffer block, and the other end is fixed in the annular mounting groove, and the buffer block can be followed the annular mounting groove and removed.
5. A check valve having a buffering function as claimed in claim 1, wherein: the upper end of the valve body is provided with an installation opening, and the valve cover is fixed at the installation opening; the round pin axle rotates to be installed in the department of meeting of valve body installing port and water inlet, and the department of meeting of valve body installing port and delivery port is equipped with the stopper, and the stopper is the spherical piece of rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220658984.2U CN217328620U (en) | 2022-03-24 | 2022-03-24 | Check valve with buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220658984.2U CN217328620U (en) | 2022-03-24 | 2022-03-24 | Check valve with buffer function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217328620U true CN217328620U (en) | 2022-08-30 |
Family
ID=83000579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220658984.2U Active CN217328620U (en) | 2022-03-24 | 2022-03-24 | Check valve with buffer function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217328620U (en) |
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2022
- 2022-03-24 CN CN202220658984.2U patent/CN217328620U/en active Active
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