CN207421429U - A kind of totally-enclosed spring Fall lift safety valve - Google Patents

Abstract

The utility model discloses a kind of totally-enclosed spring Fall lift safety valves, including valve body and valve deck, adjusting ring positioning screw is installed on the left of the valve body, and valve seat is internally provided with soket head cap screw, dead ring is fixed on the right side of the valve seat, and buckle is provided on the inside of dead ring, positioning sleeve is installed on the right side of the dead ring, and positioning sleeve is connected by screw with valve seat, rigidized cover is provided on the outside of the valve deck, and the inner surface of rigidized cover is fixed with insulating foam, the inner wall of the valve deck is fixed with spongy layer, and valve body spring is provided on the inside of spongy layer, the inside of the valve body spring is equipped with valve rod, Adjusting bolt Adjusting screw is provided with above the valve rod.The totally-enclosed spring Fall lift safety valve facilitates installation to fix, and installs and stablize, and can effectively prevent substance and leaks, and contained spring is influenced smaller by outside environmental elements, and the service life of safety valve is longer, flow control effect stability.

Description

A kind of totally-enclosed spring Fall lift safety valve

Technical field

The utility model is related to valving technical fields, are specially a kind of totally-enclosed spring Fall lift safety valve.

Background technology

Spring micro-opening pessimistic securit valve is different from general fall lift safety valve, can be automatically closed after pressure release, without People's hand-reset, Lift are up to the 1/4 of internal diameter, suitable for setting for air, oil gas, liquid and mordant medium On standby and pipeline, as overpressure protection apparatus, it is easy to use and operates, purposes scope ratio is wide in equipment and pipeline.And Existing spring sealed fall lift safety valve is not easy to fix when installation is connected to pipeline, and installation shakiness can cause safety valve Interior substance overflows, and permeates, and requirement of the spring sealed fall lift safety valve to spring is higher, during use, with External force influences, different degrees of variation can also occur for variation of ambient temperature or the variation of time, initial tension of spring, weakens entire Safety valve reduces the work efficiency of safety valve to the control effect of substance in valve, for this purpose, it is proposed that a kind of installation is firm and energy Protect the safety valve of contained spring.

Utility model content

The purpose of this utility model is to provide a kind of totally-enclosed spring Fall lift safety valve, to solve above-mentioned background technology Middle proposition is not easy to fix when installation is connected to pipeline, and installation shakiness can cause substance in safety valve to overflow, and permeate, As external force influences, different degrees of variation can also occur for variation of ambient temperature or the variation of time, initial tension of spring, weaken Entire safety valve is to the control effect of substance in valve, the problem of reducing the work efficiency of safety valve.

To achieve the above object, the utility model provides following technical solution：A kind of totally-enclosed spring Fall lift safety valve, Including valve body and valve deck, adjusting ring positioning screw is installed on the left of the valve body, and valve seat is internally provided with interior hexagonal spiral shell It follows closely, flap is installed above the soket head cap screw, and flap seat is provided with above flap, the top peace of the flap seat Equipped with guide sleeve, dead ring is fixed on the right side of the valve seat, and buckle is provided on the inside of dead ring, the right side of the dead ring Side is equipped with positioning sleeve, and positioning sleeve is connected by screw with valve seat, and stud is both provided at left and right sides of the valve deck, And valve deck is located at the top of valve body, rigidized cover is provided on the outside of the valve deck, and the inner surface of rigidized cover is fixed with heat-insulated sea Silk floss, the both sides up and down of the rigidized cover are welded with brake pad, and the inner wall of the valve deck is fixed with spongy layer, and spongy layer is interior Side is provided with valve body spring, and the inside of the valve body spring is equipped with valve rod, Adjusting bolt Adjusting screw, institute are provided with above the valve rod It states and bonnet is installed above valve deck.

Preferably, the lower section of the valve body and right side have been connected by screw positioning sleeve, and the shape of positioning sleeve is in I-shaped.

Preferably, the positioning sleeve includes cork mouth, spring and retaining ring, and positioning sleeve is internally provided with spring, spring Inside is provided with retaining ring, and the both sides up and down of retaining ring are respectively and fixedly provided with cork mouth.

Preferably, the horizontal center line between the cork mouth on positioning sleeve is symmetrical, and between cork mouth mutually It is parallel.

Preferably, the valve deck is flexibly connected by stud with valve body, and in valve deck between stud Axisymmetrical is distributed.

Preferably, cooperate between the valve deck and rigidized cover, and the central axes weight of valve deck, rigidized cover and spongy layer It closes.

Compared with prior art, the beneficial effects of the utility model are：The totally-enclosed spring Fall lift safety valve facilitates peace Dress fix, and install stablize, can effectively prevent substance and leak, contained spring influenced by outside environmental elements it is smaller, safety valve Service life is longer, and the positioning sleeve of flow control effect stability, wherein I-shaped can provide for the connection between valve body and pipeline Accurate location determination, cork mouth can be filled blocking to the gap between valve body and duct wall, substance avoided to enter safety Pressure is larger during valve, permeates, and ensures the flow control progress working properly of safety valve, by the elastic characteristic of spring to retaining ring into Row extension and contraction control, the installation for making safety valve is more simple and convenient, and human hand during installation is avoided to directly contact in pipeline with corrosive Harmful substance can be dismantled between valve deck and valve body, convenient that safety valve inner body is safeguarded and cleaned, and ensure peace The normal use of full valve, rigidized cover can be kept out and alleviated to pressure outside valve deck, avoid external force directly to valve deck It impacts or even oppresses valve body spring to deform upon, valve body spring is damaged, while rigidized cover and spongy layer can be every Exhausted temperature makes ambient temperature weaken the influence power of valve body spring, and the initial tension of spring of valve body spring is maintained at a conjunction In the excursion of reason.

Description of the drawings

Fig. 1 is the utility model structure diagram；

Fig. 2 is the utility model locating sleeve structure schematic diagram；

Fig. 3 is the utility model rigidized cover structure diagram.

In figure：1st, valve body, 2, adjusting ring positioning screw, 3, soket head cap screw, 4, flap, 5, flap seat, 6, guide sleeve, 7, Dead ring, 8, buckle, 9, positioning sleeve, 901, cork mouth, 902, spring, 903, retaining ring, 10, screw, 11, valve deck, 12, double end spiral shell Bolt, 13, rigidized cover, 14, insulating foam, 15, brake pad, 16, spongy layer, 17, valve rod, 18, valve body spring, 19, Adjusting bolt Adjusting screw, 20th, bonnet.

Specific embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained shall fall within the protection scope of the present invention.

- 3 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of totally-enclosed spring Fall lift safety valve, bag Include valve body 1 and valve deck 11, the left side of valve body 1 is equipped with adjusting ring positioning screw 2, and valve seat 1 is internally provided with interior hexagonal spiral shell Nail 3, the top of soket head cap screw 3 is equipped with flap 4, and the top of flap 4 is provided with flap seat 5, the top installation of flap seat 5 There is guide sleeve 6, the right side of valve seat 1 is fixed with dead ring 7, and the inside of dead ring 7 is provided with buckle 8, the right side peace of dead ring 7 Equipped with positioning sleeve 9, and positioning sleeve 9 is connected by screw 10 with valve seat 1, and positioning sleeve 9 includes cork mouth 901, spring 902 and retaining ring 903, positioning sleeve 9 is internally provided with spring 902, and the inside of spring 902 is provided with retaining ring 903, and the both sides up and down of retaining ring 903 are equal Cork mouth 901 is fixed with, extension and contraction control is carried out to retaining ring 903 by the elastic characteristic of spring 902, the installation for making safety valve is simpler Folk prescription just, avoids human hand during installation from directly contacting in pipeline with corrosive harmful substance, on positioning between cork mouth 901 The horizontal center line of set 9 is symmetrical, and is mutually parallel between cork mouth 901, and cork mouth 901 can be to valve body 1 and duct wall Between gap be filled blocking, pressure is larger when avoiding the substance from entering safety valve, permeates, ensures the flow control work of safety valve It is normally carried out, the lower section and right side of valve body 1 are connected with positioning sleeve 9 by screw 10, and the shape of positioning sleeve 9 is in " work " word Shape, positioning sleeve 9 can provide accurate location determination for the connection between valve body 1 and pipeline, and the left and right sides of valve deck 11 is all provided with Stud 12 is equipped with, and valve deck 11 is located at the top of valve body 1, valve deck 11 is flexibly connected by stud 12 with valve body 1, and Central axes between stud 12 on valve deck 11 are symmetrical, can be dismantled between valve deck 11 and valve body 1, convenient pair Safety valve inner body is safeguarded and cleaned, and ensures the normal use of safety valve, and the outside of valve deck 11 is provided with rigidized cover 13, And the inner surface of rigidized cover 13 is fixed with insulating foam 14, the both sides up and down of rigidized cover 13 are welded with brake pad 15, valve deck 11 Inner wall be fixed with spongy layer 16, and the inside of spongy layer 16 is provided with valve body spring 18, phase between valve deck 11 and rigidized cover 13 Mutually cooperation, and the central axes of valve deck 11, rigidized cover 13 and spongy layer 16 overlap, rigidized cover 13 can be pressurized to 11 outside of valve deck Power is kept out and is alleviated, and external force is avoided directly valve deck 11 to be impacted or even oppressed valve body spring 18 and is deformed upon, to valve Body spring 18 damages, while rigidized cover 13 and spongy layer 16 can completely cut off temperature, makes ambient temperature to valve body spring 18 Influence power weakens, and the initial tension of spring of valve body spring 18 is maintained in a rational excursion, valve body spring 18 Inside is equipped with valve rod 17, and the top of valve rod 17 is provided with Adjusting bolt Adjusting screw 19, and the top of valve deck 11 is equipped with bonnet 20.

Operation principle：Safety valve is mounted on corresponding pipeline first for this kind of safety valve, positioning sleeve 9 is to safety The installation site of valve is positioned, and spring 902 is shunk by pipe extrusion, retaining ring 903 and the mutual clamping of inner-walls of duct slot, dead ring Pipeline outer wall is fastened and locked by buckle 8 in 7, is closely connected between valve body 1 and pipeline, 901 pairs of pipelines of cork mouth and valve body 1 it Between installation gap blocked, avoid substance into valve body 1 when because of pressure it is excessive caused by leak, it is particularly acrid Substance cannot especially leak infiltration accident when carrying out pressure release control, and the Fluid pressure in safety valve slowly increases, and works as Jie Matter pressure rise to lifting force it is bigger than the initial tension of spring of valve body spring 18 when, the vertical side of flap 4 and flap seat 5 along valve rod 17 To initial tension of spring is overcome to automatically turn on, extra medium of releasing makes interior drops, and due to the spring masterpiece of valve body spring 18 With when internal pressure is down to safety value, flap 4 and flap seat 5 are automatically closed, stopping of releasing, and valve body spring 18 is because spring itself Reasons in structure, easily influenced be subject to extraneous factor, the initial tension of spring of valve body spring 18 be widely varied, makes peace The pressure release control of full valve causes to directly affect, and rigidized cover 13 can carry out outer wall reinforcing to valve deck 11, and external force is avoided directly to act on On valve deck 11 or even to valve body spring 18 deformation is caused to damage, while the insulating foam 14 of 13 inner wall of rigidized cover and valve deck 11 The spongy layer 16 of inner wall can obstruct temperature, reduce influence of the ambient temperature to valve body spring 18, by valve body The initial tension of spring of spring 18 is controlled in a suitable excursion, extends the service life of valve body spring 18, ensures peace Full valve normally and efficiently works, and completes the use process of entire safety valve like this.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that in the case where not departing from the principle of the utility model and spirit can these embodiments be carried out with a variety of variations, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (6)

1. a kind of totally-enclosed spring Fall lift safety valve, including valve body (1) and valve deck (11), it is characterised in that：The valve body (1) Left side adjusting ring positioning screw (2) is installed, and valve body (1) is internally provided with soket head cap screw (3), the interior hexagonal spiral shell Flap (4) is installed above nail (3), and flap seat (5) is provided with above flap (4), the top peace of the flap seat (5) Equipped with guide sleeve (6), dead ring (7) is fixed on the right side of the valve body (1), and buckle is provided on the inside of dead ring (7) (8), positioning sleeve (9) is installed on the right side of the dead ring (7), and positioning sleeve (9) is connected by screw (10) with valve body (1), Stud (12) is both provided at left and right sides of the valve deck (11), and valve deck (11) is located at the top of valve body (1), the valve Rigidized cover (13) is provided on the outside of lid (11), and the inner surface of rigidized cover (13) is fixed with insulating foam (14), the reinforcing The both sides up and down of set (13) are welded with brake pad (15), and the inner wall of the valve deck (11) is fixed with spongy layer (16), and sponge Valve body spring (18) is provided on the inside of layer (16), the inside of the valve body spring (18) is equipped with valve rod (17), the valve rod (17) Adjusting bolt Adjusting screw (19) is provided with above, bonnet (20) is installed above the valve deck (11).

2. a kind of totally-enclosed spring Fall lift safety valve according to claim 1, it is characterised in that：The valve body (1) Lower section and right side are connected with positioning sleeve (9) by screw (10), and the shape of positioning sleeve (9) is in I-shaped.

3. a kind of totally-enclosed spring Fall lift safety valve according to claim 1, it is characterised in that：The positioning sleeve (9) Including cork mouth (901), spring (902) and retaining ring (903), positioning sleeve (9) is internally provided with spring (902), spring (902) Inside be provided with retaining ring (903), the both sides up and down of retaining ring (903) are respectively and fixedly provided with cork mouth (901).

4. a kind of totally-enclosed spring Fall lift safety valve according to claim 3, it is characterised in that：The cork mouth (901) horizontal center line between on positioning sleeve (9) is symmetrical, and is mutually parallel between cork mouth (901).

5. a kind of totally-enclosed spring Fall lift safety valve according to claim 1, it is characterised in that：The valve deck (11) is logical It crosses stud (12) to be flexibly connected with valve body (1), and the central axes between stud (12) on valve deck (11) are symmetrically divided Cloth.

6. a kind of totally-enclosed spring Fall lift safety valve according to claim 1, it is characterised in that：The valve deck (11) with Rigidized cover cooperates between (13), and the central axes of valve deck (11), rigidized cover (13) and spongy layer (16) overlap.