CN210890250U

CN210890250U - Check valve

Info

Publication number: CN210890250U
Application number: CN201922056982.7U
Authority: CN
Inventors: 王元忠
Original assignee: Yantai Sanhe Steel Casting Co ltd
Current assignee: Yantai Sanhe Steel Casting Co ltd
Priority date: 2019-11-23
Filing date: 2019-11-23
Publication date: 2020-06-30
Anticipated expiration: 2029-11-23

Abstract

The utility model belongs to the technical field of the technique of valve and specifically relates to a check valve is related to. Including valve body and valve gap, through bolted connection between valve body and the valve gap, be provided with inlet channel and outlet channel in the valve body, be equipped with the passway between inlet channel and the outlet channel, be equipped with the valve clack that is used for the closing cap passway in the valve body, the passway one side is kept away from to the valve clack is connected with the valve rod, the valve rod runs through the valve body, the valve rod is equipped with a plurality of spring pins along the axis direction of perpendicular to self, it can be with the first recess of spring pin complex to correspond to be equipped with on the valve body, first recess is the ring channel, when being located the first recess joint of the lowest side on the spring pin of lowest side and. Through the injecing to the valve rod position, can adjust the size of passway mouth to control flow, not only can regard as a check valve, can regard as a governing valve to use simultaneously, the device simple structure, the operation of being convenient for, the function is more.

Description

Check valve

Technical Field

The invention relates to the technical field of valves, in particular to a check valve.

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 lifting check valve is a check valve with a valve clack sliding along the vertical center line of the valve body, the lifting check valve can only be installed on a horizontal pipeline, and the valve clack on the high-pressure small-caliber check valve can be a round ball. The valve body of the lift check valve is the same in shape as the stop valve (can be used with the stop valve), so that the coefficient of fluid resistance of the lift check valve is large. The structure of the stop valve is similar to that of the stop valve, and the valve body and the valve clack are the same as the stop valve. The upper part of the valve clack and the lower part of the valve cover are provided with guide sleeves, the guide sleeves can freely lift in the guide sleeves of the valve cover, when a medium flows downstream, the valve clack is opened by the thrust of the medium, and when the medium stops flowing, the valve clack falls on the valve seat by self-hanging, so that the function of preventing the medium from flowing back is realized.

The prior chinese patent publication No. CN202371224U discloses a vertical check valve. Including valve body and valve gap, be provided with the disk seat in the valve body, dispose the valve clack on the disk seat, the valve clack disposes the elasticity resetting means who makes its reseing towards the disk seat, elasticity resetting means includes support, locating lever and spring, the support center has the jack, the support is fixed on the valve body, insert in the jack on the locating lever, the valve clack is fixed in the lower extreme of locating lever, the diameter of valve clack slightly is less than the diameter of valve body inner chamber, the spring cup joints on the locating lever, the both ends of spring push up respectively on support. The spring part sleeved on the positioning rod is adopted to elastically reset the valve clack, wherein the positioning rod enables the valve clack to stably move up and down along the set track, and the spring is sleeved on the positioning rod to realize the elastic resetting function.

The above prior art solutions have the following drawbacks: the check valve has the advantages of single function and poor applicability.

Disclosure of Invention

In view of the shortcomings of the prior art, it is an object of the present invention to provide a check valve. The valve can be used as a common valve, the flow can be adjusted, and the device is simple in structure, convenient to operate and high in applicability.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides a check valve, includes valve body and valve gap, through bolted connection between valve body and the valve gap, be provided with inlet channel and exit channel in the valve body, inlet channel with be equipped with the passway between the exit channel, be equipped with in the valve body and be used for the closing cap the valve clack of passway, the valve clack is kept away from passway one side is connected with the valve rod, the valve rod runs through the valve gap, the valve rod is equipped with a plurality of spring pins along the axis direction of perpendicular to self, correspond on the valve body be equipped with a plurality of can with the first recess of spring pin complex, first recess is the ring channel, is located on the valve rod the spring pin of lowest side with during first recess joint on the valve body, the valve clack hug closely in the passway.

Through adopting above-mentioned technical scheme, the valve rod through the spring catch that sets up with the first recess of spring catch mutually supporting on the spring catch and the valve body, can inject the position of valve rod, can adjust the size of passway mouth through the position of injecing to control flow, not only can regard as a check valve, can regard as a governing valve to use simultaneously, the device simple structure, the operation of being convenient for, the function is more.

The present invention in a preferred example may be further configured to: the notch cuttype sets up, the valve clack corresponds the notch cuttype setting and can with the sealed laminating of notch.

Through adopting above-mentioned technical scheme, the valve clack notch cuttype sets up, and notch cuttype sealed compare in planar sealed effect better.

The present invention in a preferred example may be further configured to: and a sealing gasket is arranged at the joint of the valve clack and the passage opening.

Through adopting above-mentioned technical scheme, the sealed pad that sets up can improve the sealed effect between valve clack and the passway, as a check valve, better prevents the backward flow.

The present invention in a preferred example may be further configured to: the sealing gasket is embedded in the side wall of the channel opening and is connected with the channel opening in a gluing mode.

Through adopting above-mentioned technical scheme, sealed the pad is inlayed and is established and compare in direct laminating at the entrance to a passway lateral wall at the entrance to a passway, can reduce the area that rivers assault sealed pad and the laminating department of entrance to a passway, has prolonged the time of sealed pad and the entrance to a passway laminating, has improved life.

The present invention in a preferred example may be further configured to: the valve rod is sleeved with a gear and fixedly connected with the gear, one side of the gear is meshed and connected with a rack, the rack is connected to the upper surface of the valve clack in a sliding mode, the sliding direction of the rack is parallel to the axis direction of the rack, a through hole is formed in one side of the rack, and one side of the rack is connected with a cover plate capable of covering the through hole.

Through adopting above-mentioned technical scheme, the cooperation of the gear and the rack that set up is used, and rotation through the gear drives the rack and removes, and rack sliding connection can carry out a restriction to the slip direction of rack on the valve clack upper surface, also can control the flow through the size that the apron closed the area to the through hole.

The present invention in a preferred example may be further configured to: the edge of the side edge of one side of the through hole, which is far away from the rack, is provided with a baffle plate, and the baffle plate is fixedly connected to the valve clack.

Through adopting above-mentioned technical scheme, the baffle that sets up can carry out a restriction to the sliding distance of rack, prevents the slippage between gear and the rack.

The present invention in a preferred example may be further configured to: and a sealing gasket is arranged on the end face, close to the through hole, of the cover plate.

Through adopting above-mentioned technical scheme, the sealed pad that sets up can carry out a sealed effect to apron and through hole, prevents to leak.

The present invention in a preferred example may be further configured to: and a handle is arranged on one side, far away from the valve clack, of the valve rod and is positioned on the outer side of the valve body.

Through adopting above-mentioned technical scheme, the handle of setting conveniently goes to operate the valve rod and conveniently to the removal of valve body.

In summary, the invention includes at least one of the following beneficial technical effects:

1. by adopting the technical scheme, the valve rod can limit the position of the valve rod through the spring pin and the first groove which is arranged on the valve body and is matched with the spring pin, and the size of the passage opening can be adjusted through the limited position, so that the flow is controlled, the valve rod not only can be used as a check valve, but also can be used as an adjusting valve, and the device has the advantages of simple structure, convenience in operation and more functions;

2. by adopting the technical scheme, the sealing gasket is embedded in the channel opening, so that the area of impact of water flow on the joint of the sealing gasket and the channel opening can be reduced, the joint time of the sealing gasket and the channel opening is prolonged, and the service life is prolonged;

3. through adopting above-mentioned technical scheme, the cooperation of the gear and the rack that set up is used, and rotation through the gear drives the rack and removes, and rack sliding connection can carry out a restriction to the slip direction of rack on the valve clack upper surface, also can control the flow through the size that the apron closed the area to the through hole.

Drawings

Fig. 1 is a schematic sectional view of the overall structure of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic diagram of the matching relationship of the partial structures in the present invention.

In the figure, 1, a valve body; 2. a valve cover; 3. a bolt; 4. an inlet channel; 5. an outlet channel; 6. a passage port; 7. a valve flap; 8. a valve stem; 9. a spring pin; 10. a first groove; 11. a gasket; 12. a gear; 13. a rack; 14. a through hole; 15. a baffle plate; 16. a handle; 17. a chute; 18. and (7) a cover plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a check valve is disclosed in the present invention. Including valve body 1 and valve gap 2, connect through bolt 3 between valve body 1 and the valve gap 2, be provided with inlet channel 4 and outlet channel 5 in the valve body 1, be equipped with passway 6 between inlet channel 4 and the outlet channel 5, be equipped with the valve clack 7 that is used for closing cap passway 6 in the valve body 1, valve clack 7 is kept away from passway 6 one side and is connected with valve rod 8, valve rod 8 runs through valve gap 2, valve rod 8 is equipped with a plurality of spring pins 9 (be two in the picture) along the axis direction of perpendicular to self, it can be with the first recess 10 of spring pin 9 complex (be three in the picture) to correspond to be equipped with on the valve body 1, first recess 10 is the ring channel, when being located the spring pin 9 of the lowest side on valve rod 8 and the first recess 10 joint of the lowest side on valve body 1. The valve rod 8 can be limited to the position of the valve rod 8 through the first groove 10 which is arranged on the spring pin 9 and the valve body 1 and matched with the spring pin 9, the size of the channel opening 6 can be adjusted through the limited position, flow is controlled, the valve rod can serve as a check valve and can serve as a regulating valve, the device is simple in structure, operation is convenient, and the functions are multiple.

As shown in fig. 1 and 2, the passage opening 6 is arranged in a stepped manner, and the valve flap 7 is arranged corresponding to the stepped manner and can seal and attach the passage opening 6. 7 notch cuttype settings of valve clack, notch cuttype's sealed effect of comparing in planar sealed better. A sealing gasket 11 is arranged at the joint of the valve flap 7 and the passage opening 6 (the sealing gasket 11 in the embodiment is a rubber gasket). The sealing gasket 11 can improve the sealing effect between the valve clack 7 and the passage opening 6, and can be used as a check valve to better prevent backflow. The gasket 11 is fitted to a side wall (not shown) of the passage port 6 and is bonded to the passage port 6 by gluing. The sealing gasket 11 is embedded in the channel opening 6, so that the impact area of water flow on the joint of the sealing gasket 11 and the channel opening 6 can be reduced, the joint time of the sealing gasket 11 and the channel opening 6 is prolonged, and the service life is prolonged compared with the direct joint of the sealing gasket 11 and the side wall of the channel opening 6.

As shown in fig. 2 and 3, a gear 12 is sleeved on the valve rod 8 and is fixedly connected with the gear 12, one side of the gear 12 is engaged and connected with a rack 13, the rack 13 is slidably connected with the upper surface of the valve flap 7, the valve flap 7 is provided with a sliding groove 17, the sliding direction of the sliding groove is parallel to the axial direction of the rack 13, one side of the rack 13 is provided with a through hole 14, and one side of the rack 13 is connected with a cover plate 18 capable of covering the through hole 14. The gear 12 and the rack 13 are arranged to be matched, the rack 13 is driven to move through the rotation of the gear 12, the rack 13 is connected to the upper surface of the valve clack 7 in a sliding mode, the sliding direction of the rack 13 can be limited, and the flow can be controlled through the size of the covering area of the through hole 14 through the cover plate 18. A baffle plate 15 is arranged at the edge of the side edge of the through hole 14 far away from the rack 13, and the baffle plate 15 is fixedly connected to the valve clack 7. The baffle 15 is arranged to limit the sliding distance of the rack 13 and prevent the gear 12 from slipping off the rack 13. The end surface of the cover plate 18 close to the through hole 14 is provided with a sealing gasket 11. The gasket 11 is provided to seal the cover plate 18 and the through-hole 14 against leakage.

As shown in fig. 1, the side of the valve stem 8 away from the valve flap 7 is provided with a handle 16, and the handle 16 is located outside the valve body 1. A handle 16 is provided to facilitate handling of the valve stem 8 and movement of the valve body 1.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. A check valve comprises a valve body (1) and a valve cover (2), wherein the valve body (1) and the valve cover (2) are connected through a bolt (3), an inlet channel (4) and an outlet channel (5) are arranged in the valve body (1), a channel opening (6) is arranged between the inlet channel (4) and the outlet channel (5), a valve flap (7) used for sealing the channel opening (6) is arranged in the valve body (1), a valve rod (8) is connected to one side, away from the channel opening (6), of the valve flap (7), the valve rod (8) penetrates through the valve cover (2), the check valve is characterized in that the valve rod (8) is provided with a plurality of spring pins (9) along the axis direction perpendicular to the valve rod (8), the valve body (1) is correspondingly provided with a plurality of first grooves (10) which can be matched with the spring pins (9), and the first grooves (10) are annular grooves, the valve is characterized in that a spring pin (9) on the lowest side of the valve rod (8) is connected with a first groove (10) on the lowest side of the valve body (1) in a clamping mode, and the valve clack (7) is tightly attached to the channel opening (6).

2. A check valve as claimed in claim 1, wherein: the notch cuttype of passway opening (6) sets up, valve clack (7) correspond the notch cuttype setting and can with passway opening (6) seals up the laminating.

3. A non-return valve according to claim 2, characterized in that the joint between the flap (7) and the passage opening (6) is provided with a sealing gasket (11).

4. A non-return valve according to claim 3, characterized in that the sealing gasket (11) is embedded in the side wall of the passage opening (6) and is glued to the passage opening (6).

5. The check valve according to claim 4, characterized in that a gear (12) is sleeved on the valve rod (8) and is fixedly connected with the gear (12), a rack (13) is engaged and connected to one side of the gear (12), the rack (13) is slidably connected to the upper surface of the valve flap (7), the sliding direction is parallel to the axial direction of the rack (13), a through hole (14) is formed in one side of the rack (13), and a cover plate (18) capable of covering the through hole (14) is connected to one side of the rack (13).

6. A non-return valve according to claim 5, characterized in that a stop (15) is arranged at the edge of the side of the through-going opening (14) remote from the toothed rack (13), the stop (15) being fixedly connected to the flap (7).

7. A non-return valve according to claim 5, characterized in that the cover plate (18) is provided with a sealing gasket (11) at its end face near the through-going hole (14).

8. A non-return valve according to claim 7, characterized in that the side of the valve stem (8) remote from the flap (7) is provided with a handle (16), which handle (16) is located outside the valve body (1).