CN212273075U

CN212273075U - Lifting check valve capable of improving sealing effect

Info

Publication number: CN212273075U
Application number: CN202020837329.4U
Authority: CN
Inventors: 曾学龙; 杨耿俊
Original assignee: Yancheng Stard Minli Valves Co ltd
Current assignee: Yancheng Stard Minli Valves Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-01
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses a can improve sealed effect over-and-under type check valve, including valve body and second waterproof spring, the upper end bolted connection of valve body has the valve gap, the left end welded connection of valve body has the inlet, the surface welded connection of connecting axle has the mounting, the right-hand member welded connection of valve body has the liquid outlet, the internally mounted of valve body has the disk seat, the upper left end fixedly connected with second waterproof spring of valve clack, the lower extreme welded connection of valve gap has the adapter sleeve, the first waterproof spring of inside upper end fixedly connected with of adapter sleeve, and the lower extreme fixedly connected with connecting rod of first waterproof spring, dead lever through connection is in the inside of connecting rod, the elongated slot has been seted up to the upper end of valve cla. This can improve sealed effect over-and-under type check valve is convenient for improve sealed effect, and avoids inlet and liquid outlet to block up to prevent that impurity from gluing on the inner wall of inlet.

Description

Lifting check valve capable of improving sealing effect

Technical Field

The utility model relates to a lifting check valve technical field that is relevant specifically is a can improve sealed effect lifting check valve.

Background

At present, a check valve is a valve for blocking a medium from flowing backwards, and is classified into five types according to installation methods, wherein a lift check valve automatically opens and closes a valve flap through the flow of the medium itself, and lift check valves on the market have various forms.

However, general over-and-under type check valve is not convenient for improve sealed effect, and inlet and liquid outlet block up easily to impurity glues easily on the inner wall of inlet, the utility model aims to provide a can improve sealed effect over-and-under type check valve to solve the problem that above-mentioned background art provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can improve sealed effect over-and-under type check valve to solve most of over-and-under type check valves that provide in the above-mentioned background art, be not convenient for improve sealed effect, and inlet and liquid outlet block up easily, and impurity glues the problem on the inner wall of inlet easily.

In order to achieve the above object, the utility model provides a following technical scheme: a lifting check valve capable of improving sealing effect comprises a valve body and a second waterproof spring, wherein the upper end of the valve body is in bolted connection with a valve cover, a sealing gasket is arranged between the valve cover and the valve body, the left end of the valve body is in welded connection with a liquid inlet, the interior of the liquid inlet is rotatably connected with a connecting shaft, the outer surface of the connecting shaft is in welded connection with a fixing part, the outer end of the fixing part is fixedly connected with a stirring blade, the right end of the valve body is in welded connection with a liquid outlet, a valve seat is mounted in the valve body, the left end of the valve seat is hinged with a valve clack, the upper left end of the valve clack is fixedly connected with the second waterproof spring, one end, away from the valve clack, of the second waterproof spring is fixedly connected to the left wall of the valve body, the lower, and the lower end of the first waterproof spring is fixedly connected with a connecting rod, the fixing rod is connected inside the connecting rod in a penetrating mode, the lower end of the connecting rod is rotatably connected with a connecting block, and the upper end of the valve clack is provided with an elongated slot.

Preferably, the liquid inlet and the inside of liquid outlet all install the connecting axle, and the surface of connecting axle evenly is provided with the stirring leaf to the longitudinal section shape of stirring leaf is "T" style of calligraphy.

Preferably, the sum of the heights of the monomers at the right end of the stirring blade is equal to the diameter of the liquid inlet, the stirring blade and the liquid outlet form a rotating structure, and the liquid inlet and the liquid outlet form a communicating structure through a valve seat.

Preferably, the valve clack and the valve seat form an overturning structure, the longitudinal section of the valve clack is in a convex shape, and the valve clack is connected with the valve seat in a clamping manner.

Preferably, the connecting sleeve and the connecting rod are both hollow structures, the connecting rod and the connecting sleeve form a telescopic structure, and the connecting sleeve and the valve cover form an integrated structure.

Preferably, the longitudinal cross-sectional shapes of the connecting block and the fixing rod are both T-shaped, the fixing rod and the connecting rod form a lifting structure, and the connecting block arranged at the lower end of the connecting rod and the long groove form a sliding structure.

Compared with the prior art, the beneficial effects of the utility model are that: the lifting check valve capable of improving the sealing effect is convenient to improve the sealing effect, avoids the blockage of the liquid inlet and the liquid outlet and prevents impurities from being stuck on the inner wall of the liquid inlet;

1. the valve is provided with a valve clack and a connecting block, the longitudinal section of the valve clack is in a convex shape, so that the valve clack is turned over to seal a valve seat, and the elastic force of a first waterproof spring drives the connecting rod to descend due to the structural design of the connecting rod and the connecting sleeve, so that the connecting block slides in the long groove to extrude the right end of the valve clack, and the sealing effect is facilitated;

2. the stirring blade is arranged on the outer surface of the connecting shaft, so that the liquid inlet is stirred when the stirring blade rotates, and blockage is prevented;

3. be equipped with connecting axle and stirring leaf, the stirring leaf drives the connecting axle when rotating and rotates, and the longitudinal section shape of stirring leaf is "T" style of calligraphy for when the stirring leaf rotates, the outer end of stirring leaf contacts with the inner wall of inlet, thereby prevents that impurity from gluing on the inner wall of inlet.

Drawings

Fig. 1 is a schematic view of the front cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the connection section structure of the connection sleeve and the connection rod of the present invention;

FIG. 3 is a schematic structural view showing the state of separation of the valve flap from the valve seat;

fig. 4 is the left side view structure schematic diagram of the stirring blade and the liquid outlet connected.

In the figure: 1. a valve body; 2. a valve cover; 3. a gasket; 4. a liquid inlet; 5. a fixing member; 6. a connecting shaft; 7. stirring blades; 8. a liquid outlet; 9. a first waterproof spring; 10. fixing the rod; 11. a valve seat; 12. a valve flap; 13. a second waterproof spring; 14. connecting sleeves; 15. a connecting rod; 16. connecting blocks; 17. a long groove.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a lifting check valve capable of improving sealing effect comprises a valve body 1, a valve cover 2, a sealing gasket 3, a liquid inlet 4, a fixing piece 5, a connecting shaft 6, a stirring blade 7, a liquid outlet 8, a first waterproof spring 9, a fixing rod 10, a valve seat 11, a valve clack 12, a second waterproof spring 13, a connecting sleeve 14, a connecting rod 15, a connecting block 16 and an elongated slot 17, wherein the upper end of the valve body 1 is in bolted connection with the valve cover 2, the sealing gasket 3 is placed between the valve cover 2 and the valve body 1, the left end of the valve body 1 is in welded connection with the liquid inlet 4, the connecting shaft 6 is rotatably connected inside the liquid inlet 4, the fixing piece 5 is welded on the outer surface of the connecting shaft 6, the stirring blade 7 is fixedly connected at the outer end of the fixing piece 5, the liquid outlet 8 is welded at the right end of the valve body 1, the valve seat 11 is installed, and the one end fixed connection that the valve clack 12 was kept away from to second waterproof spring 13 is on the left wall of valve body 1, the lower extreme welded connection of valve gap 2 has adapter sleeve 14, and the inside fixedly connected with dead lever 10 of adapter sleeve 14, the inside upper end fixedly connected with first waterproof spring 9 of adapter sleeve 14, and the lower extreme fixedly connected with connecting rod 15 of first waterproof spring 9, dead lever 10 through connection is in the inside of connecting rod 15, and the lower extreme of connecting rod 15 rotates and is connected with connecting block 16, the elongated slot 17 has been seted up to the upper end of valve clack 12.

As shown in fig. 1 and fig. 3, the valve flap 12 and the valve seat 11 form an inverted structure, the longitudinal section of the valve flap 12 is in a shape of a convex letter, the valve flap 12 and the valve seat 11 are connected in a clamping manner, and the valve flap 12 is inverted so that the convex letter of the valve flap 12 clamps and seals the valve seat 11;

as shown in fig. 2, the connecting sleeve 14 and the connecting rod 15 are both hollow structures, the connecting rod 15 and the connecting sleeve 14 form a telescopic structure, the connecting sleeve 14 and the valve cover 2 form an integrated structure, the connecting rod 15 can enter the connecting sleeve 14, the fixing rod 10 can enter the connecting rod 15, the elastic force of the first waterproof spring 9 drives the connecting rod 15 to stretch, the connecting sleeve 14 is fixedly connected to the lower end of the valve cover 2, the longitudinal cross-sectional shapes of the connecting block 16 and the fixing rod 10 are both T-shaped, the fixing rod 10 and the connecting rod 15 form a lifting structure, the connecting block 16 arranged at the lower end of the connecting rod 15 and the long groove 17 form a sliding structure, the fixing rod 10 cannot be separated from the connecting rod 15, the connecting block 16 cannot be separated from the long groove 17, the connecting rod 15 can;

connecting shafts 6 are installed inside the liquid inlet 4 and the liquid outlet 8 in the liquid mixing device shown in the figures 1 and 4, stirring blades 7 are evenly arranged on the outer surfaces of the connecting shafts 6, the longitudinal section of each stirring blade 7 is T-shaped, liquid cannot be prevented from entering the liquid inlet 4, the stirring blades 7 are used for stirring the inside of the liquid inlet 4 when rotating, the outer ends of the stirring blades 7 are in contact with the inner wall of the liquid inlet 4, the sum of the heights of the right end monomers of the stirring blades 7 is equal to the diameter of the liquid inlet 4, the stirring blades 7 and the liquid outlet 8 form a rotating structure, the liquid inlet 4 is communicated with the liquid outlet 8 through a valve seat 11, the stirring blades 7 can be in full contact with the inner wall of the liquid inlet 4, the stirring blades 7 are used for stirring the inside of the liquid outlet 8 when rotating, and liquid in the liquid inlet 4 enters the.

The working principle is as follows: when the lifting check valve capable of improving the sealing effect is used, the valve clack 12 of the convex structure is clamped in the valve seat 11 to seal the valve seat 11 by combining the figures 1 and 2, the right end of the valve clack 12 is tightly attached to the upper end of the valve seat 11 by the elastic force of the second waterproof spring 13, the connecting rod 15 is pushed by the elastic force of the first waterproof spring 9 to descend on the fixed rod 10, the connecting rod 15 moves downwards in the connecting sleeve 14, so that the connecting block 16 pushes the right end of the valve clack 12, the right end of the valve clack 12 is tightly attached to the right end of the valve seat 11, and the sealing effect is improved;

referring to fig. 1 and 3, after liquid enters the liquid inlet 4, the liquid drives the connecting shaft 6 and the stirring blade 7 to rotate, so as to prevent the liquid inlet 4 from being blocked, after the liquid in the liquid inlet 4 enters the valve body 1, the liquid pushes up the valve flap 12, so that the connecting rod 15 moves upwards in the connecting sleeve 14, when the connecting rod 15 ascends, the connecting block 16 rotatably connected with the connecting rod 15 can slide in the elongated slot 17 to adjust the position, so that the right end of the valve flap 12 ascends, the left end of the valve flap 12 turns upwards, the valve flap 12 is driven to be far away from the valve seat 11, so that the liquid enters the liquid outlet 8 through the valve seat 11, and when the liquid in the liquid outlet 8 flows outwards, the connecting shaft 6 and the stirring blade 7 are;

as shown in figure 1, the longitudinal section of the stirring blade 7 is in a T shape, so that liquid enters the liquid inlet 4, the stirring blade 7 is driven to rotate when the liquid flows, the connecting shaft 6 is driven to rotate, the stirring blade 7 is in contact with the inner wall of the liquid inlet 4, impurities in the liquid are prevented from being adhered to the inner wall of the liquid inlet 4, and the working principle of the lifting check valve capable of improving the sealing effect is realized.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a can improve sealed effect over-and-under type check valve, includes valve body (1) and second water spring (13), its characterized in that: the upper end of the valve body (1) is connected with a valve cover (2) through a bolt, a sealing gasket (3) is placed between the valve cover (2) and the valve body (1), the left end of the valve body (1) is connected with a liquid inlet (4) in a welding manner, the inside of the liquid inlet (4) is connected with a connecting shaft (6) in a rotating manner, the outer surface of the connecting shaft (6) is connected with a fixing part (5) in a welding manner, the outer end of the fixing part (5) is fixedly connected with a stirring blade (7), the right end of the valve body (1) is connected with a liquid outlet (8) in a welding manner, a valve seat (11) is arranged inside the valve body (1), the left end of the valve seat (11) is hinged and connected with a valve clack (12), the upper left end of the valve clack (12) is fixedly connected with a second waterproof spring, the lower extreme welded connection of valve gap (2) has adapter sleeve (14), and the inside fixedly connected with dead lever (10) of adapter sleeve (14), the first waterproof spring (9) of inside upper end fixedly connected with of adapter sleeve (14), and the lower extreme fixedly connected with connecting rod (15) of first waterproof spring (9), dead lever (10) through connection is in the inside of connecting rod (15), and the lower extreme of connecting rod (15) rotates and is connected with connecting block (16), elongated slot (17) have been seted up to the upper end of valve clack (12).

2. The poppet check valve of claim 1, wherein: connecting shafts (6) are installed inside the liquid inlet (4) and the liquid outlet (8), stirring blades (7) are evenly arranged on the outer surfaces of the connecting shafts (6), and the longitudinal section of each stirring blade (7) is T-shaped.

3. The poppet check valve of claim 1, wherein: the height sum between the right end monomers of the stirring blades (7) is equal to the diameter of the liquid inlet (4), the stirring blades (7) and the liquid outlet (8) form a rotating structure, and the liquid inlet (4) and the liquid outlet (8) form a communicating structure through a valve seat (11).

4. The poppet check valve of claim 1, wherein: the valve clack (12) and the valve seat (11) form an overturning structure, the longitudinal section of the valve clack (12) is in a convex shape, and the valve clack (12) and the valve seat (11) are connected in a clamping mode.

5. The poppet check valve of claim 1, wherein: the connecting sleeve (14) and the connecting rod (15) are both hollow structures, the connecting rod (15) and the connecting sleeve (14) form a telescopic structure, and the connecting sleeve (14) and the valve cover (2) form an integrated structure.

6. The poppet check valve of claim 1, wherein: the longitudinal sections of the connecting blocks (16) and the fixing rods (10) are T-shaped, the fixing rods (10) and the connecting rods (15) form a lifting structure, and the connecting blocks (16) arranged at the lower ends of the connecting rods (15) and the long grooves (17) form a sliding structure.