CN210266032U

CN210266032U - Spherical check valve

Info

Publication number: CN210266032U
Application number: CN201920871358.XU
Authority: CN
Inventors: 罗红军
Original assignee: Wenzhou Source Of Fluid Equipment Technology Co Ltd Hao
Current assignee: Wenzhou Source Of Fluid Equipment Technology Co Ltd Hao
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-04-07
Anticipated expiration: 2029-06-11

Abstract

The utility model relates to a spherical check valve, which comprises a valve body, the upper end and the lower extreme of valve body are equipped with delivery port and water inlet through the runner intercommunication respectively, water inlet department be equipped with the ball sealer, be fixed with the mount on the up end of valve body, the center of mount is equipped with the screw hole, the screw hole on threaded connection have the screw rod, screw rod one end stretches out the mount up end, in the other end stretches into the runner, be fixed with the spring dish on stretching into the screw rod in the runner, the spring dish on be fixed with pressure spring, pressure spring deviates from the one end and the ball sealer of spring dish and offsets, the lower extreme of runner is equipped with has the cambered surface the same with the ball sealer radian, the cambered surface has inlayed the sealing ring. Adjust the pressure of ball sealer through rotatory screw rod to adapt to different operating mode demands, moreover, stretch out the check valve with pressure regulation's screw rod outside, be convenient for adjust in the installation, have simple structure, application range is wide, rational in infrastructure's advantage.

Description

Spherical check valve

Technical Field

The utility model relates to a check valve, concretely relates to spherical check valve.

Background

The check valve is used for a pipeline system and mainly has the functions of preventing media from flowing backwards, preventing the pump and a driving motor thereof from reversing and discharging the media in the container. Check valves may also be used to provide make-up lines to auxiliary systems in which the pressure may rise above the pressure of the primary system. The device can be horizontally or vertically installed, can be used for cold water, hot water, industrial and domestic sewage pipe networks, and is more suitable for submersible sewage pumps, and the medium temperature is 0-80 ℃. Can be arranged at the water outlet of the water pump to prevent backflow and damage of the water hammer to the pump. The sealing ball of the check valve in the prior art is sealed by gravity return and also by the pressure return of a spring, but the check valve in both structures does not have the capability of adjusting the pressure of the sealing ball.

SUMMERY OF THE UTILITY MODEL

To the not enough in the background art, the utility model provides a spherical check valve.

The utility model adopts the technical proposal that: the utility model provides a spherical check valve, includes the valve body, the upper end and the lower extreme of valve body are equipped with delivery port and water inlet through the runner intercommunication respectively, water inlet department be equipped with the ball sealer, be fixed with the mount on the up end of valve body, the center of mount is equipped with the screw hole, screw hole on threaded connection have the screw rod, screw rod one end stretches out the mount up end, in the other end stretches into the runner, is fixed with the spring dish on stretching into the screw rod in the runner, the spring dish on be fixed with pressure spring, pressure spring deviates from the one end and the ball sealer of spring dish inconsistent, the lower extreme of runner is equipped with has the cambered surface the same with the ball sealer radian, the sealing ring has been inlayed in the cambered surface.

Furthermore, the upper end of the sealing ball is provided with a horizontal connecting surface.

Furthermore, the fixing frame comprises an outer ring, an inner ring and a connecting rod for connecting the outer ring and the inner ring into a whole, the outer ring is provided with a fixing hole, and the threaded hole is formed in the center of the inner ring.

Furthermore, the upper end face of the valve body is provided with a mounting groove for mounting a fixing frame, and the depth of the mounting groove is equal to the thickness of the outer ring of the fixing frame.

Furthermore, the sealing ring on be equipped with integrative connecting block, the cambered surface on be equipped with the connecting groove of connecting block embedding, the connecting groove be "T" type structure or forked tail structure.

Furthermore, one end of the water inlet, which is close to the cambered surface, is provided with a circle of water retaining steps, and the water retaining steps are bent towards one side of the cambered surface.

Furthermore, the upper end of the screw rod is provided with a knob.

Furthermore, the diameter of the water inlet is smaller than that of the water outlet, and the diameter of the flow channel is gradually increased from the water inlet to the water outlet.

The utility model has the advantages that: the utility model discloses can adjust the pressure of ball sealer through rotatory screw rod to adapt to different operating mode demands, moreover, stretch out the check valve with pressure regulating's screw rod outside, be convenient for adjust in the installation, have simple structure, application range is wide, rational in infrastructure's advantage.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic top view of the fixing frame.

Fig. 3 is an enlarged view of a.

In the figure: 1. a valve body; 2. a flow channel; 3. a water outlet; 4. a water inlet; 5. a sealing ball; 6. a fixed mount; 7. a threaded hole; 8. a screw; 9. a spring holder; 10. a compression spring; 11. a cambered surface; 12. a seal ring; 13. a connecting surface; 14. an outer ring; 15. an inner ring; 16. A connecting rod; 17. a fixing hole; 18. mounting grooves; 19. connecting blocks; 20. connecting grooves; 21. a water retaining step; 22. a knob.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a spherical check valve.

In this embodiment, refer to fig. 1 to 3, this ball check valve, including valve body 1, the upper end and the lower extreme of valve body 1 are equipped with delivery port 3 and water inlet 4 through runner 5 intercommunication respectively, 4 departments of water inlet be equipped with ball sealer 5, be fixed with mount 6 on the up end of valve body 1, the center of mount 6 is equipped with screw hole 7, screw hole 7 on threaded connection have a screw rod 8, 8 one end of screw rod stretches out the mount up end, the other end stretches into in runner 2, is fixed with spring disc 9 on stretching into the screw rod 8 in runner 2, spring disc 9 on be fixed with pressure spring 10, the one end that pressure spring 10 deviates from the spring disc is inconsistent with the ball sealer, the lower extreme of runner 2 is equipped with and has the cambered surface 11 the same with ball sealer 5 radian, cambered surface 11 is last to have inlayed sealing ring 12.

After technical scheme more than adopting, can be in the rotatory screw rod of water outlet department of valve body upper end, adjust pressure spring and be acting on the ball sealer upper pressure to adapt to different operating mode demands, and stretch out the mount up end with the screw rod, the workman of being convenient for directly adjusts, improves the convenience of installation regulation. In addition, the lower end of the flow channel is provided with an arc surface with the same radian as the sealing ball, and the sealing ring is arranged on the arc surface, so that the sealing performance of the check valve is greatly improved.

It should be noted that the water inlet, the flow channel and the water outlet described in the present application are a certain section on the valve body, such as the water inlet section, the flow channel section and the water outlet section identified as shown in fig. 1.

In the present embodiment, the upper end of the sealing ball 5 has a horizontal connecting surface 13. And meanwhile, the sealing ball is provided with the connecting surface, so that the pressure verticality of the compression spring is ensured, and the sealing performance is improved.

The fixing frame 6 comprises an outer ring 14, an inner ring 15 and a connecting rod 16 for connecting the outer ring and the inner ring into a whole, the outer ring 14 is provided with a fixing hole 17, and the threaded hole 7 is arranged at the center of the inner ring; the upper end face of the valve body 1 is provided with a mounting groove 18 for mounting a fixing frame, and the depth of the mounting groove 18 is equal to the thickness of an outer ring of the fixing frame. As shown in figure 2, a gap is reserved between the connecting rod and the connecting rod for discharging media, the fixing frame of the structure is stable in structure, the fixing frame can be fixed on the mounting groove of the valve body through bolts, the mounting and the dismounting are convenient, the depth of the mounting groove is equal to the thickness of the outer ring of the fixing frame, the smoothness of the upper end face of the valve body is guaranteed, and the connection of the valve body and a pipe fitting cannot be affected.

The sealing ring 12 is provided with an integrated connecting block 19, the cambered surface 11 is provided with a connecting groove 20 embedded with the connecting block, and the connecting groove 20 is of a T-shaped structure or a dovetail structure; one end of the water inlet close to the cambered surface is provided with a circle of water retaining steps 21, and the water retaining steps are bent towards one side of the cambered surface. The sealing ring is embedded into the connecting groove through the connecting block, so that the installation is convenient, and the connection is stable. And set up the manger plate step in water inlet department, avoid intaking direct impact sealing washer, protect the life of sealing washer, also avoid the sealing washer to be washed away by high-pressure medium.

The upper end of the screw is provided with a knob 22. The knob can be in a cross structure or a hexagonal screw head structure, as long as the purposes of labor saving and convenient operation can be realized,

the diameter of the water inlet is smaller than that of the water outlet, and the diameter of the flow channel is gradually increased from the water inlet to the water outlet.

The utility model discloses can adjust the pressure of ball sealer through rotatory screw rod to adapt to different operating mode demands, moreover, stretch out the check valve with pressure regulating's screw rod outside, be convenient for adjust in the installation, have simple structure, application range is wide, rational in infrastructure's advantage.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concepts are not limited to the embodiments, and any modifications that utilize the inventive concepts are intended to be included within the scope of the appended claims.

Claims

1. The utility model provides a spherical check valve, includes the valve body, the upper end and the lower extreme of valve body are equipped with delivery port and water inlet through the runner intercommunication respectively, water inlet department be equipped with ball sealer, its characterized in that: the utility model discloses a valve body, including valve body, spring disc, fixing frame, sealing ring, spring disc, fixing frame, spring disc, sealing ring, spring disc, sealing ring.

2. The ball check valve as set forth in claim 1, wherein: the upper end of the sealing ball is provided with a horizontal connecting surface.

3. The ball check valve as claimed in claim 1 or 2, wherein: the fixing frame comprises an outer ring, an inner ring and a connecting rod for connecting the outer ring and the inner ring into a whole, wherein the outer ring is provided with a fixing hole, and the threaded hole is formed in the center of the inner ring.

4. The ball check valve as set forth in claim 3 wherein: the valve body is characterized in that an installation groove for installing the fixing frame is formed in the upper end face of the valve body, and the depth of the installation groove is equal to the thickness of the outer ring of the fixing frame.

5. The ball check valve as set forth in claim 1, wherein: the sealing ring on be equipped with integrative connecting block, the cambered surface on be equipped with the connecting groove of connecting block embedding, the connecting groove be "T" type structure or forked tail structure.

6. The ball check valve as claimed in claim 1 or 5, wherein: one end of the water inlet, which is close to the cambered surface, is provided with a circle of water retaining steps, and the water retaining steps are bent towards one side of the cambered surface.

7. The ball check valve as claimed in claim 1 or 4, wherein: the upper end of the screw rod is provided with a knob.

8. The ball check valve as set forth in claim 1, wherein: the diameter of the water inlet is smaller than that of the water outlet, and the diameter of the flow channel is gradually increased from the water inlet to the water outlet.