CN206036243U - Pneumatic your trip valve of single spring piston - Google Patents

Pneumatic your trip valve of single spring piston Download PDF

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Publication number
CN206036243U
CN206036243U CN201620973325.2U CN201620973325U CN206036243U CN 206036243 U CN206036243 U CN 206036243U CN 201620973325 U CN201620973325 U CN 201620973325U CN 206036243 U CN206036243 U CN 206036243U
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CN
China
Prior art keywords
valve
piston
spring
cylinder
valve rod
Prior art date
Application number
CN201620973325.2U
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Chinese (zh)
Inventor
吴金海
Original Assignee
中山市大海自控阀门有限公司
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Publication date
Application filed by 中山市大海自控阀门有限公司 filed Critical 中山市大海自控阀门有限公司
Priority to CN201620973325.2U priority Critical patent/CN206036243U/en
Application granted granted Critical
Publication of CN206036243U publication Critical patent/CN206036243U/en

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Abstract

The utility model discloses a pneumatic your trip valve of single spring piston, including cylinder, piston, valve body, valve rod, case and spring, the piston set up in in the cylinder, the case set up in in the valve body, just the piston with the case respectively fixed set up in the both ends of valve rod, spring suit is in on the valve rod, the spring set up in the piston with between the valve body. The utility model discloses a single spring piston type executing mechanism adopts O type circle sealed between piston in the actuating mechanism and the cylinder, adopts the transfer mode installation of freely keeping flat between piston and the spring holder, this kind of design since between spring holder and the piston nos bolt -up and spring holder outside spacing, always at from the centering state when making the reciprocating action of piston, does not have irregular mechanical responsiveness and send the wearing and tearing of cylinder unilateral or piston and cylinder production frictional resistance, move more smooth -goingly.

Description

A kind of two stop valves of Single spring piston type pneumatic

Technical field

This utility model is related to a kind of Pneumatic two-position cut-off valve product technical field, particularly a kind of Single spring piston type pneumatic Move two stop valves.

Background technology

Pneumatic two-position cut-off valve is a kind of valve control device for realizing flow pipe fast shut-off or handoff functionality, his root According to signal cut or the switchable dielectric (free from admixture and agranular liquid, gas, steam) of regulation meter, to meet control system Control to techniques such as pressure, temperature, flows is required.Pneumatic two-position cut-off valve in structure mainly include valve body, actuator, The components such as valve rod, valve gap or adapter, wherein valve component are included with being oriented to and seal double-acting guide pin bushing;Wear automatic-compensation Filler group;Collection compresses the clamp nut of the multiple actions such as regulation, stem guiding, valve rod lubrication and sealing, actuator component Including parts such as cylinder, support, piston, O-ring, spring base, back-moving springs, valve rod adopts extension design, straight by body portion Logical actuator is connected with spring base;Valve gap and adapter are chosen to install according to cut-out or the demand for switching, and its working method is mainly by setting Put cylinder head intake interface import source of the gas (through filtration clean compressed air) produce pressure make piston produce displacement Thrust makes spring base push the spring also promote stem movement to open valve or make valve complete while compression in spring base Into commutation action, when source of the gas is cut off, by back-moving spring band ovable valve stem adverse movement, to close valve, to make valve complete commutation dynamic Make, this Pneumatic two-position cut-off valve have the advantages that stable performance, simple structure, be quick on the draw, it is reliable in action, easy to assemble, can be with It is widely used in the automation control system of the industries such as rubber tyre, oil, chemical industry, metallurgy, adhesive article.

Pneumatic two-position cut-off valve of the prior art is primarily present following deficiency:First, piston can be received in reciprocating action To the irregular active force of back-moving spring, irregular force can cause piston to produce local friction drag with cylinder, so that cylinder It is unilateral to wear and tear and make piston action irregularity;Additionally, cylinder is connected with support and support is complicated with joint structure connecting valve, carry out When safeguarding, the assembly and disassembly working performance of the assembly and disassembly of actuator and valve body components is relatively low;Again, cut pneumatic In the operation process of disconnected valve, the temperature born by the inner seal member at stuffing-box position is higher, in high-frequency action The leakage frequency for easily causing stuffing-box position in journey is raised.

The content of the invention

In order to overcome the deficiencies in the prior art, this utility model to provide a kind of two cut-outs of Single spring piston type pneumatic Valve, can reduce the unilateral abrasion of cylinder and smooth out piston action, and optimize sealing structure, cylinder and the support of stuffing-box connecting Binding structure and support and joint structure connecting valve, effectively improve product overall performance stability and packing box seal performance.

This utility model solves the technical scheme adopted by its technical problem:

A kind of two stop valves of Single spring piston type pneumatic, including cylinder, piston, valve body, valve rod, valve element and spring, institute State piston to be arranged in the cylinder, the valve element is arranged in the valve body, and the piston and the valve element are fixed respectively The two ends of the valve rod are arranged at, the spring is sleeved on the valve rod;The spring is arranged at the piston and the valve Between body.

As the further improvement of above-mentioned technical proposal, also including be arranged between the cylinder and the valve body Frame, the upper end of the support are connected with the cylinder by screw thread, and the lower end of the support is connected with the valve body by screw thread, The support is sleeved on outside the valve rod, and is provided with clamp nut between the support and the valve rod, the clamp nut V-type filler is provided with and the valve body between, if the V-type filler is dried layer, and is arranged between V-type filler described in adjacent two layers Flexible stainless steel gasket.

As the further improvement of above-mentioned technical proposal, arrange from upper and next coming in order on the medial wall of the clamp nut There are guidance tape, oil storage tank and O-ring one, on the outside of the support, be provided with some fin, and some fin are arranged In the outside of the clamp nut.

As the further improvement of above-mentioned technical proposal, guide pin bushing on the valve body, is provided with, the guide pin bushing is sleeved on described On valve rod, the V-type filler is arranged between the guide pin bushing and the clamp nut, and is provided with the medial wall of the guide pin bushing O-ring two.

As the further improvement of above-mentioned technical proposal, O-ring three, and the piston on the side wall of the piston, is provided with Bottom be provided with spring base, the spring is arranged between the spring base and the support, and the valve rod upper end lead to Cross connecting bolt, hex nut and elastic washer to be fixedly connected with the spring base.

Used as the further improvement of above-mentioned technical proposal, the lower end of the valve rod is provided with installation projection, the valve core housing It is mounted on the valve rod and raised bottom is installed positioned at described, the bottom of the valve element is disposed with valve element pad and retaining Nut, the valve element pad and the anti-return nut are sleeved on the valve rod, and the top and bottom of the valve element are all provided with It is equipped with sealing ring.

Compared with prior art, the beneficial effects of the utility model are:

Two stop valves of a kind of Single spring piston type pneumatic provided by the utility model are performed using Single spring piston type Mechanism, is sealed using O-ring between the piston and cylinder in actuator, is superimposed using freely keeping flat between piston and spring base Mode is installed, it is this kind of design due to have no bolt between spring base and piston and spring base outside it is spacing, make the reciprocal of piston Self-centering state is constantly in during action, causes the unilateral abrasion of cylinder or piston to produce frictional resistance with cylinder without irregular force, Action is more smoothed out.

Additionally, the cylinder of this utility model actuator is connected with support and support is connected with valve body using screw thread company The mode of connecing is installed, and cylinder head can arrange hexagon head structure, and the fast quick-detach cylinder of convenient use common wrench, support adopt band The closed design structure of fin and special spanner draw-in groove, this kind of structure design are more smart due to the cooperation between each part Close, tight rush and more convenient dismounting, it is also cleaner inside actuator, while substantially increasing the stability in the large of valve The overall structural volume of valve is also reduced, is made valve overall more smart little, is effectively reduced in-site installation requisite space and labor Fatigue resistance, and due to after valve overall package fin position be in stuffing-box position, effectively can reduce close inside stuffing-box The temperature of sealing assembly, reduces the leakage frequency at the stuffing-box position caused because temperature is too high.

Again, valve rod position adopts accurate guidance tape, V-type filler and high temperature resistant O-ring combination sealing, adjacent V-type to fill out Elastic stainless steel pad support is adopted between material, with V-type filler wear automatic-compensation function, using band cone below V-type filler Degree guide pin bushing is supported, and is provided with O-ring groove and assembles high temperature resistant O-ring on the inside of guide pin bushing, and V-type filler top is using the pressure with regulatory function Tight nut is compressed, and clamp nut is provided with O-ring groove and assembles high temperature resistant O-ring, is oriented to trough of belt and assemble high temperature resistant guidance tape, storage Oil groove ensures that to store high temperature resistant luboil and precision combination part clamp nut and valve rod high accuracy are co-axially mounted, on Stating structure makes the sealing property at stuffing-box position more stable, and makes due to increased oil storage tank and long precise navigation designing Valve rod is more stable in action, smooth-going.

Description of the drawings

With reference to the accompanying drawings and examples this utility model is further illustrated.

Fig. 1 is a kind of structural representation of two stop valves of Single spring piston type pneumatic for being threaded connection;

Fig. 2 is a kind of structural representation of two stop valves of Single spring piston type pneumatic for arranging flange connection.

Specific embodiment

Referring to figs. 1 to Fig. 2, Fig. 1 to Fig. 2 is the structural representation of one specific embodiment of this utility model.

As depicted in figs. 1 and 2, two stop valves of a kind of Single spring piston type pneumatic, including cylinder 10, piston 20, valve body 30th, valve rod 40, valve element 50 and spring 60, the piston 20 are arranged in the cylinder 10, and the valve element 50 is arranged at the valve In body 30, and the piston 20 and the valve element 50 are fixedly installed on the two ends of the valve rod 40 respectively, and the spring 60 is set with On the valve rod 40;The spring 60 is arranged between the piston 20 and the valve body 30.Also include being arranged at the gas Support 70 between cylinder 10 and the valve body 30, the upper end of the support 70 are connected with the cylinder 10 by screw thread, described The lower end of frame 70 is connected with the valve body 30 by screw thread, and the support 70 is sleeved on outside the valve rod 40, and the support 70 Clamp nut 81 is provided with and the valve rod 40 between, V-type filler between the clamp nut 81 and the valve body 30, is provided with 80, if the V-type filler 80 is dried layer, and described in adjacent two layers, between V-type filler 80, it is provided with elastic stainless steel pad 82.

As preferred, from upper and next coming in order are provided with guidance tape 83, oil storage on the medial wall of the clamp nut 81 Groove 84 and O-ring 1, the outside of the support 70 are provided with some fin 71, and some fin 71 are arranged at institute State the outside of clamp nut 81.Guide pin bushing 31 is provided with the valve body 30, and the guide pin bushing 31 is sleeved on the valve rod 40, described V-type filler 80 is arranged between the guide pin bushing 31 and the clamp nut 81, and is provided with the medial wall of the guide pin bushing 31 O-shaped Enclose 2 32.

As preferred, O-ring 3 21 on the side wall of the piston 20, is provided with, and the bottom of the piston 20 is provided with Spring base 61, the spring 60 are arranged between the spring base 61 and the support 70, and the upper end of the valve rod 40 passes through Connecting bolt 62, hex nut 63 and elastic washer 64 are fixedly connected with the spring base 61.The lower end of the valve rod 40 is arranged There is installation raised 41, the valve element 50 is sleeved on the valve rod 40 and positioned at the bottom for installing projection 41, the valve element 50 bottom is disposed with valve element pad 42 and anti-return nut 43, and the valve element pad 42 and the anti-return nut 43 are set with On the valve rod 40, and the top and bottom of the valve element 50 are provided with sealing ring 51.

During work, the valve rod 40 is driven to move by the cylinder 10 and the piston 20, so as to drive the valve element 50 move up and down in the valve body 30, to realize the cut-out or switching control of convection cell passage;30 both sides of the valve body pass in and out Mouth can be adopted and be sealed bottom flange, nipple joint and flange connecting pipe using threaded connection or flange connection, 30 bottom of the valve body Connection.The cylinder 10 is backed out by dismountable first from the upper end of the support 70, and makes the spring 60 and the valve rod 40 Separate, then the lower end of the support 70 is backed out from the valve body 30, both can be to the spring base 61 and the V-type filler 80 grade intrawares carry out maintaining or replacement operation.

Above to it is of the present utility model it is preferable implement illustrated, certainly, this utility model can also using with The different form of above-mentioned embodiment, those of ordinary skill in the art are made on the premise of without prejudice to this utility model spirit Equivalent conversion or it is corresponding change, should all belong in protection domain of the present utility model.

Claims (5)

1. two stop valves of a kind of Single spring piston type pneumatic, including cylinder (10), piston (20), valve body (30), valve rod (40), Valve element (50) and spring (60), piston (20) are arranged in the cylinder (10), and valve element (50) are arranged at the valve In body (30), and the piston (20) and the valve element (50) are fixedly installed on the two ends of the valve rod (40), the bullet respectively Spring (60) is sleeved on the valve rod (40);It is characterized in that:Spring (60) are arranged at the piston (20) and the valve Between body (30).
2. two stop valves of a kind of Single spring piston type pneumatic according to claim 1, it is characterised in that:Also include arranging Support (70) between the cylinder (10) and the valve body (30), the upper end of support (70) pass through screw thread and the gas Cylinder (10) connects, and the lower end of support (70) is connected with the valve body (30) by screw thread, and support (70) are sleeved on institute State valve rod (40) outward, and between the support (70) and the valve rod (40), be provided with clamp nut (81), the clamp nut (81) be provided with V-type filler (80) and the valve body (30) between, V-type filler (80) if being dried layer, and adjacent two layers institute State and between V-type filler (80), be provided with elastic stainless steel pad (82).
3. two stop valves of a kind of Single spring piston type pneumatic according to claim 2, it is characterised in that:The compression spiral shell Upper and next coming in order are provided with guidance tape (83), oil storage tank (84) and O-ring one (85) on the medial wall of female (81), described Some fin (71) are provided with the outside of frame (70), and some fin (71) are arranged at the clamp nut (81) Outside.
4. two stop valves of a kind of Single spring piston type pneumatic according to claim 3, it is characterised in that:The valve body (30) guide pin bushing (31) is provided with, and guide pin bushing (31) are sleeved on the valve rod (40), and V-type filler (80) are arranged at institute State between guide pin bushing (31) and the clamp nut (81), and on the medial wall of the guide pin bushing (31), be provided with O-ring two (32).
5. two stop valves of a kind of Single spring piston type pneumatic according to claim 4, it is characterised in that:The piston (20) O-ring three (21) is provided with side wall, and the bottom of the piston (20) is provided with spring base (61), the spring (60) it is arranged between the spring base (61) and the support (70), and the upper end of the valve rod (40) passes through connecting bolt (62), hex nut (63) and elastic washer (64) are fixedly connected with the spring base (61).
CN201620973325.2U 2016-08-23 2016-08-23 Pneumatic your trip valve of single spring piston CN206036243U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620973325.2U CN206036243U (en) 2016-08-23 2016-08-23 Pneumatic your trip valve of single spring piston

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620973325.2U CN206036243U (en) 2016-08-23 2016-08-23 Pneumatic your trip valve of single spring piston

Publications (1)

Publication Number Publication Date
CN206036243U true CN206036243U (en) 2017-03-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620973325.2U CN206036243U (en) 2016-08-23 2016-08-23 Pneumatic your trip valve of single spring piston

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107763222A (en) * 2016-08-23 2018-03-06 中山市大海自控阀门有限公司 A kind of two stop valves of Single spring piston type pneumatic
CN110345263A (en) * 2019-07-26 2019-10-18 杨佳洲 A kind of Pneumatic two-position cut-off valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107763222A (en) * 2016-08-23 2018-03-06 中山市大海自控阀门有限公司 A kind of two stop valves of Single spring piston type pneumatic
CN110345263A (en) * 2019-07-26 2019-10-18 杨佳洲 A kind of Pneumatic two-position cut-off valve

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AV01 Patent right actively abandoned

Granted publication date: 20170322

Effective date of abandoning: 20200403

AV01 Patent right actively abandoned