CN206299842U - Vertical Lift Check Valves - Google Patents

Abstract

The utility model discloses a kind of Vertical Lift Check Valves, can be used to prevent medium in pipeline from flowing backwards, its structure is including valve body, valve seat, flap seat, flap and ring-type bonnet etc., flap seat is mainly designed to a cylinder tipped upside down on valve seat, and valve seat is provided with inlet opening, flap seat top is provided with apopore, then the flap axial reciprocating movement that ceramics are made is arranged in flap seat；Therefore, inlet opening can be just closed on valve seat when flap falls to contacting, so as to realize the check function of valve；Inlet opening is opened when flap is departed from valve seat by the pressure medium in pipeline, inlet opening can be just connected with apopore, so as to realize the insertion function of valve；This non-return structure avoids the defect that conventional check valves are necessarily limited to the elastic thrust ability non-return of spring, and structure design is simpler, non-return very reliable, Open-close sealing is functional, the Vertical Lift Check Valves after improvement also have the advantages that long service life, low production cost, easy to maintenance, best in quality.

Description

Vertical Lift Check Valves

Technical field

The utility model is related to a kind of check valve structure for preventing medium refluence in pipeline, refers in particular to vertical non-return Valve.

Background technology

Check-valves is a kind of automatic valve, and it flows and automatic open close flap in itself by medium, is mostly installed at medium On the pipeline of one-way flow, and medium is only allowed to be flowed to a direction, to try to avert accidents, also can be applicable to pressure may The accessory system of system pressure is raised above to provide on the pipeline of supply.Traditional Vertical Lift Check Valves are usually by valve body, bonnet, valve The structures such as valve, valve rod, spring, spring washer are constituted, and flap is fixedly mounted on valve rod by flap seat, and valve rod passes through spring again The dynamic flap valve seat in sealing contact of elastic top pushing belt, therefore passing through for valve is realized under collective effect of the spring thrust with pressure medium Logical function and check function.However, this flap non-return on-off structure must be realized by the elastic thrust of spring, easily receive To the limitation of spring performance, many problems for being difficult to and overcoming also are there is in actual use；Meanwhile, between flap and valve seat Sealing is main to be sealed firmly using between elastomeric material sealing or metal, and this is resulted in, and sealing effectiveness is not ideal, and life of valve is short, Also because complex, inconvenient maintenance is assembled in production, so as to improve the production cost of product, the product of product is significantly impacted Matter.

The content of the invention

Technical problem to be solved in the utility model be overcome prior art defect and provide a kind of simple structure, Non-return reliability, functional Open-close sealing, long service life, low production cost, vertical non-return easy to maintenance, best in quality Valve.

Technical problem of the present utility model is achieved through the following technical solutions：

A kind of Vertical Lift Check Valves, including the valve body of vertical installation, the valve pocket axially through valve body, be securedly mounted in valve pocket Valve seat and flap seat and open and close the flap of valve pocket, described flap seat is a cylinder tipped upside down on valve seat；Described valve Seat is provided with inlet opening, and described flap seat top is provided with apopore；Described flap axial reciprocating movement is arranged on flap seat It is interior, and contact valve seat and close inlet opening, or depart from valve seat and open inlet opening and be connected with apopore.

Described flap seat inner peripheral surface is provided with multiple vertical convex tendons, and flap seat inner top surface is provided with multiple around apopore Horizontal convex tendon；Described vertical convex tendon is in contact with the outer peripheral face of the flap, and makes flap outer peripheral face with flap seat inner circumferential Water space is formed out between face；Described horizontal convex tendon is in contact with the top surface of the flap, and makes flap top surface with flap seat Exhalant canal is formed between inner top surface, the exhalant canal is respectively communicated with out water space and apopore.

Described flap is a cylindrical ceramic part, and flap bottom surface is provided with into water counterbore.

Described valve seat and flap seat securing mount in valve pocket be flap seat at the top of location and installation in valve pocket On interior shoulder, at the top of valve seat, on the inner stopper of valve pocket, seat bottom portion connects the valve seat top location and installation bottom contact of flap seat Touch and covered in annular valve, the annular valve is covered tightly and is solidly connected in valve pocket.

Described annular valve tops are set to conical boss and form in the outer shoulder of conical boss periphery, and bottom is provided with interior six Corner apertures, is provided with the "O"-ring for being formed with the valve seat and contacting sealing on outer shoulder.

Described valve body is integral type hollow tubular structure, and the upper port of the hollow tube is set to delivery port, lower port be set into The mouth of a river.

Described water inlet is provided with the sealing ring that plug dress is fixed on below ring-type bonnet, and screen pack is provided with the sealing ring.

Compared with prior art, the utility model be mainly by flap seat be designed to a cylinder tipped upside down on valve seat, And valve seat is provided with inlet opening, flap seat top is provided with apopore, then the flap axial reciprocating movement that ceramics are made is arranged on In flap seat；Therefore, inlet opening can be just closed on valve seat when flap falls to contacting, so as to realize the check function of valve；When Flap is departed from valve seat and opens inlet opening by the pressure medium in pipeline, and just inlet opening can be connected with apopore, so that real The insertion function of existing valve；This non-return structure avoids the elastic thrust ability non-return that conventional check valves are necessarily limited to spring Defect, and structure design is simpler, non-return very reliable, Open-close sealing is functional, and the Vertical Lift Check Valves after improvement are also There is long service life, low production cost, easy to maintenance, best in quality.

Brief description of the drawings

Fig. 1 is cross section structure diagram of the present utility model.

Fig. 2 is the sectional view of valve body.

Fig. 3 is the sectional view of flap seat.

Fig. 4 is the stereogram of Fig. 3.

Fig. 5 is the sectional view of flap.

Fig. 6 is the stereogram of Fig. 5.

Fig. 7 is the sectional view of ring-type bonnet.

Specific embodiment

The utility model embodiment will again be elaborated by above-mentioned accompanying drawing below.

As shown in Fig. 1 ~ Fig. 7,1. valve body, 11. water inlets, 12. delivery ports, 13. inner stoppers, shoulder in 14., 2. sealing ring, 3. screen pack, 4. ring-type bonnet, 41. outer shoulders, 5. 42. inner hexagonal holes, "O"-ring, 6. valve seat, 7. 61. inlet openings, flap, 71. Go out water space, 72. exhalant canals, 8. 73. water inlet counterbores, flap seat, 81. apopores, 82. vertical convex tendons, 83. horizontal convex tendons.

Vertical Lift Check Valves, as shown in figure 1, relating generally to a kind of for preventing the valve that medium flows backwards in pipeline, its structure Including valve body 1, valve seat 6, flap seat 8, flap 7 and ring-type bonnet 4 etc..

Described valve body 1 as shown in Fig. 2 it is integral type hollow tubular structure, using the valve body of this integrative-structure, valve body Blank hot forging or can directly select hexagonal bar, therefore structure design is simpler, both facilitates processing, and production cost is saved again；And In valve body axially through the hollow channel valve pocket that is also formed water flowing and installs for valve other parts.

Valve body 1 used by the present embodiment is set using the vertical mounting structure shown in Fig. 1, and the lower port of valve pocket, i.e. hollow tube For water inlet 11, upper port is set to delivery port 12, entery and delivery port uses female thread structure to facilitate pipeline to connect.

Described flap seat 8, valve seat 6 and ring-type bonnet 4 from bottom to top, are i.e. securedly mounted to valve pocket successively by water inlet 11 Interior, specific mounting structure is：Flap seat 8 first loads valve pocket from water inlet 11, until flap 8 top location and installations of seat are in valve pocket On default interior shoulder 14；Then valve seat 6 is loaded into valve pocket from water inlet 11, and makes the top location and installation of valve seat 6 pre- in valve pocket If inner stopper 13 on, then 8 bottoms of flap seat can be in direct contact with the top of valve seat 6；Finally by ring-type bonnet 4 also from water inlet 11 Load valve pocket, the lumen with upper and lower insertion, for water flowing, is set to circle to the ring-type bonnet 4 as shown in Figure 7 at the top of ring-type bonnet 4 Cone boss and the outer shoulder 41 for forming in conical boss periphery, "O"-ring 5 are provided with outer shoulder and contact close with the formation of the bottom of valve seat 6 The clamping structure of envelope, and the mode that ring-type bonnet 4 is then connected through a screw thread is tightened in valve pocket, so as to by flap seat 8, valve seat 6 Installation site give and hold out against and formed in sealing contact.

The screwing in valve pocket of ring-type bonnet 4, inner hexagonal hole 42 is additionally provided with the bottom of ring-type bonnet 4 for convenience, with The convenient operation for installing connection.

Described water inlet 11 is provided with the sealing ring 2 that plug dress is fixed on the lower section of ring-type bonnet 4, and the sealing ring uses rubber material Material is made, the sealing property that the internal thread and pipeline that can guarantee that valve inleting water mouth 11 are connected, and screen pack 3 is provided with sealing ring, tool There is the function of filter medium.

Flap seat 8, valve seat 6 and ring-type bonnet 4 in above-mentioned mounting structure are made of nonmetallic materials, valve therein Valve seat 8 is the moulding of injection moulding, and valve seat 6 is circular ceramic member, therefore reduces metalworking program so that whole vertical The production and assembling of check-valves are all simpler, and the disassembling, assembling and replacing of maintenance also quite facilitates, and both reduces production cost, has again Good maintainability.

Meanwhile, as shown in Figure 3, Figure 4, it is in integrally cylinder type to flap seat 8, and is just tipped upside down on valve seat 6, in valve seat 6 It is provided with inlet opening 61, the top of flap seat 8 is provided with apopore 81, and flap seat inner peripheral surface is provided with the vertical of 6 circumference uniform distributions Convex tendon 82, flap seat inner top surface is provided with 6 horizontal convex tendons 83 around apopore 81, then vertical convex tendon 82 and horizontal convex tendon 83 One is just formd similar to petal distributed architecture, both design quantities generally remain identical, and the number of quantity Depend primarily on concrete structure design.

In addition, be arranged in flap seat 8 for axial reciprocating movement by flap 7, and 6 vertical convex tendons 82 are outer with flap 7 Side face is in contact, and makes to form out water space 71 between flap outer peripheral face and flap seat inner peripheral surface；And moving up for flap 7 will Terminate in 6 horizontal convex tendons 83, and the top surface of 6 horizontal convex tendons with flap 7 is in contact, and make flap top surface with top in flap seat Exhalant canal 72 is formed between face, the exhalant canal is respectively communicated with out water space 71 and apopore 81.

Described flap 7 is as shown in Figure 5, Figure 6 a cylindrical ceramic part, can possess ceramic material it is wear-resisting, corrosion-resistant, Resistant to elevated temperatures feature, so as to ensure the service life of flap, flap bottom surface is provided with into water counterbore 73, and can conveniently intake pushing tow flap 7 movements.

Use process of the present utility model is：When valve be subject to back pressure, occur medium flow backwards, then flap 7 fall contact Inlet opening 61 can be just closed on valve seat 6, so as to realize the check function of valve；When flap 7 is by the pressure medium top in pipeline Evade and open inlet opening 61 from valve seat 6, inlet opening can be just connected with apopore 81, so as to realize the insertion work(of valve Energy.

The above is only specific embodiment of the utility model, it should be appreciated by those skilled in the art that any and reality The equivalent structure design of example is applied, be should be included within protection domain of the present utility model.

Claims (7)

1. a kind of valve body of Vertical Lift Check Valves, including vertical installation（1）, valve pocket axially through valve body, be securedly mounted to valve pocket Interior valve seat（6）With flap seat（8）And open and close the flap of valve pocket（7）, it is characterised in that described flap seat（8）It is one to fall It is buckled in valve seat（6）On cylinder；Described valve seat（6）It is provided with inlet opening（61）, described flap seat（8）Top is provided with water outlet Hole（81）；Described flap（7）Axial reciprocating movement is arranged on flap seat（8）It is interior, and contact valve seat（6）And close inlet opening （61）, or depart from valve seat（6）And open inlet opening（61）With apopore（81）It is connected.

2. Vertical Lift Check Valves according to claim 1, it is characterised in that described flap seat（8）Inner peripheral surface is provided with multiple Vertical convex tendon（82）, flap seat（8）Inner top surface is provided with multiple around apopore（81）Horizontal convex tendon（83）；Described is vertical Convex tendon（82）With the flap（7）Outer peripheral face be in contact, and make flap（7）Outer peripheral face and flap seat（8）Shape between inner peripheral surface Into going out water space（71）；Described horizontal convex tendon（83）With the flap（7）Top surface be in contact, and make flap（7）Top surface with Flap seat（8）Exhalant canal is formed between inner top surface（72）, the exhalant canal is respectively communicated with out water space（71）And apopore （81）.

3. Vertical Lift Check Valves according to claim 1, it is characterised in that described flap（7）It is a cylindrical ceramic Part, flap（7）Bottom surface is provided with into water counterbore（73）.

4. Vertical Lift Check Valves according to claim 1, it is characterised in that described valve seat（6）With flap seat（8）In valve pocket Interior securing mount is flap seat（8）Interior shoulder of the top location and installation in valve pocket（14）On, flap seat（8）Bottom contact exists Valve seat（6）Top, the valve seat（6）Inner stopper of the top location and installation in valve pocket（13）On, valve seat（6）Bottom is contacted in annular valve Lid（4）On, the annular valve is covered tightly and is solidly connected in valve pocket.

5. Vertical Lift Check Valves according to claim 4, it is characterised in that described ring-type bonnet（4）It is convex that top is set to circular cone Platform and the outer shoulder for forming in conical boss periphery（41）, bottom is provided with inner hexagonal hole（42）, in outer shoulder（41）Be provided with it is described Valve seat（6）Form the "O"-ring of contact sealing（5）.

6. Vertical Lift Check Valves according to claim 1, it is characterised in that described valve body（1）It is integral type hollow tube knot Structure, the upper port of the hollow tube is set to delivery port（12）, lower port is set to water inlet（11）.

7. Vertical Lift Check Valves according to claim 6, it is characterised in that described water inlet（11）Plug dress is provided with to be fixed on Ring-type bonnet（4）The sealing ring of lower section（2）, screen pack is provided with the sealing ring（3）.