Valve body structure requiring quick closing and having buffering function

Abstract

The utility model provides a valve body structure requiring quick closing and having a buffering function, and belongs to the technical field of control valves. Comprising a discharging valve seat, a feeding valve seat is connected to one side of the discharging valve seat in an inserted mode, and an oil cylinder, a piston rod, a screw rod and a wear-resisting sleeve are connected to one side of the discharging valve seat in an inserted mode. The oil cylinder is arranged to drive the piston rod to move in the discharging valve seat, so that materials flow into the discharging cavity from the feeding cavity, after the small ring front seat is in contact with the sealing large ring, sealing and buffering are conducted through mutual contact of the sealing small ring and the sealing large ring, and after the small ring front seat is in contact with a groove in one side of the butt joint clamping strip, sealing and buffering are conducted. The butt-joint clamping strip is attracted to the surface of the small ring front seat and enters the groove of the fixing clamping strip, when the butt-joint clamping strip makes contact with the fixing clamping strip, the fixing clamping strip expands outwards, the service life of the valve body is prolonged, and therefore the situation that after the valve body is used for a period of time and the butt-joint clamping strip and the fixing clamping strip are aged in use, the service life of the valve body is prolonged is reduced. The buffering and sealing effects are poor.

Description

TECHNICAL FIELD

[0001] The utility model relates to control valve technical field, especially in a kind of valve body structure requiring quick closing and with buffer. BACKGROUND

[0002] Valve is used to open and close pipeline, control flow direction, adjust and control the parameter (temperature, pressure and flow) of conveying medium, it is pipeline accessory, it is control component in fluid conveying system, with cut-off, regulation, flow guide, prevent backflow, pressure stabilizing, shunt or overflow pressure relief function, can be used to control air, water, steam, various corrosive media, mud, oil, liquid metal and radioactive medium and the flow of various types fluid.

[0003] But the valve body equipment of existing application when using, the impact force inside valve body is too large, valve disc can cause harm to valve disc when closing, reduce the service period of valve body, therefore, the present application provides a kind of valve body structure requiring quick closing and with buffer to meet needs. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a kind of valve body structure requiring quick closing and with buffer to solve the valve body equipment of existing application when using, the impact force inside valve body is too large, valve disc can cause harm to valve disc when closing, reduce the service period of valve body problem.

[0005] To solve the above technical problem, the utility model provides the following technical scheme:

[0006] A kind of valve body structure requiring quick closing and with buffer, including discharge valve seat, the side of the discharge valve seat is inserted with feed valve seat, the side of the discharge valve seat is inserted with oil cylinder, the inside of the oil cylinder is equipped with piston rod, the surface of the piston rod is sleeved with wear-resistant sleeve, one end of the piston rod is inserted with screw rod, the surface of the screw rod is screwed and is penetrated with fixed nut, the surface of the screw rod is sleeved with small ring rear seat, the surface of the screw rod is sleeved with small ring front seat, the surface of the screw rod is screwed and is penetrated with valve disc nut, the surface of the screw rod is sleeved with spring, the inside of the discharge valve seat is equipped with sealing large ring.

[0007] Optionally, the side of the feed valve seat is provided with feed inlet, the inside of the feed valve seat is provided with feed cavity.

[0008] Optionally, the inside of the discharge valve seat is provided with discharge cavity, the material of the piston rod is hard alloy.

[0009] Optionally, the surface of the small ring front seat is equipped with sealing small ring, the material of the sealing small ring is rubber.

[0010] Optionally, the spring is located between small ring rear seat and small ring front seat, the material of the spring is stainless steel.

[0011] Optionally, the material of the sealing large ring is rubber, and the inside of the sealing large ring is in a stepped shape.

[0012] Optionally, the inside of the sealing large ring is provided with a butt joint clamping strip, the material of the butt joint clamping strip is rubber, and the butt joint clamping strip is in a sharp conical shape.

[0013] Optionally, the inside of the sealing large ring is provided with a fixed clamping strip, the material of the fixed clamping strip is rubber, and the inside of the fixed clamping strip is provided with a groove.

[0014] Optionally, the inside of the small ring rear seat is provided with a leakage and suction pipeline, and the inside of the small ring front seat is provided with a butt joint pipeline.

[0015] Optionally, the valve disc nut is located on one side of the small ring front seat, the number of the valve disc nut is two, the wear-resistant sleeve is located between the piston rod and the small ring rear seat, and the material of the wear-resistant sleeve is rubber.

[0016] Compared with the prior art, the utility model has at least the following beneficial effects:

[0017] In the scheme, the material enters the feeding cavity of the feeding valve seat through the feeding port on one side of the feeding valve seat, the screw rod and the piston rod are fixed through the fixed nut, the small ring rear seat and the small ring front seat are fixed on the screw rod through the valve disc nut, the piston rod moves in the discharging valve seat through the oil cylinder, the material flows into the discharging cavity of the discharging valve seat from the feeding cavity after the small ring front seat leaves the sealing large ring, the small ring front seat contacts the sealing large ring, the small ring rear seat and the piston rod are protected through the wear-resistant sleeve, the sealing small ring and the sealing large ring are in close contact and buffer, the small ring front seat contacts the groove on one side of the butt joint clamping strip, the butt joint clamping strip is adsorbed to the surface of the small ring front seat, the butt joint clamping strip enters the groove of the fixed clamping strip, and sealing operation is carried out, the inside of the sealing large ring is in a stepped shape, the fixed clamping strip expands outward when the butt joint clamping strip and the fixed clamping strip are in contact, and the fixed clamping strip has a certain space at the back for buffering, the piston rod moves quickly with the small ring front seat to transport the material, the use cycle of the valve body is increased, the internal structure of the valve body is protected and buffered, the use time is longer, the sealing of the internal structure of the valve body is better, the butt joint clamping strip and the fixed clamping strip are not used after a period of time, the aging of the butt joint clamping strip and the fixed clamping strip is not good, the space left at the back of the fixed clamping strip plays a certain maintaining role, the sealing large ring does not dislocate to cause material leakage, the valve body cannot work normally, and the material in the small ring rear seat and the small ring front seat is discharged through the leakage and suction pipeline and the butt joint pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings incorporated in and forming a part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the application and to enable one skilled in the pertinent art to make and use the application.

[0019] Figure 1 Structure of the valve body requiring quick closing and buffering

[0020] Figure 2 Structure of the feed valve seat of the valve body requiring quick closing and buffering

[0021] Figure 3 Structure of the butt joint clamping strip of the valve body requiring quick closing and buffering

[0022] Figure 4 Structure of the small ring front seat of the valve body requiring quick closing and buffering

[0023] Figure 5 Structure of the valve body requiring quick closing and buffering Figure 4 A schematic view.

[0024] Reference signs:

[0025] 1, discharge valve seat; 2, feed valve seat; 3, oil cylinder; 4, piston rod; 5, wear sleeve; 6, screw rod; 7, fixed nut; 8, small ring rear seat; 9, small ring front seat; 10, valve disc nut; 11, spring; 12, sealing large ring; 13, feed port; 14, sealing small ring; 15, butt joint clamping strip; 16, fixed clamping strip; 17, exhaust pipe; 18, butt joint pipe.

[0026] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment, and according to the specific needs, the devices and environment can be adjusted or modified by those skilled in the art. DETAILED DESCRIPTION

[0027] The valve body structure requiring quick closing and buffering provided by the present application is described in detail below in combination with the drawings and specific embodiments. It is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement them; and the drawings are only used to describe the embodiments more specifically, and are not intended to specifically limit the present application.

[0028] It is to be appreciated that the use of any of the following terms "one embodiment," "an embodiment," "some embodiments," "one example," "an example," "some examples," and the like, are not intended to limit the scope of the application to a specific embodiment or embodiment, nor imply that all embodiments include the discussed feature, advantage or mode of operation. Rather, these terms are intended to encompass the subject matter recited in the claims, and those come within the scope of the application as expressed in the claims.

[0029] Generally, the nomenclature is chosen to be illustrative of the features that one of ordinary skill in the art would appreciate is of significance. For example, the term "one or more" as used herein, depending at least in part upon the context, can be used to describe any feature, structure, or characteristic in a singular sense or can be used in a plural sense to describe a combination of features, structures or characteristics. Additionally, the term "based on" can be understood as not necessarily being constrained to a set of exclusive factors, but rather, can instead be interpreted in a more liberal sense to allow for the inclusion of other factors not necessarily explicitly described.

[0030] It is to be understood that the terms "on," "over," and "above" in the present application should be interpreted in the broadest possible way consistent with the context. Consequently, "on," "over," and "above" should be interpreted not only to mean "directly on" something, but also to mean "on," "over," or "above" something with intervening features or layers also present.

[0031] In addition, spatially relative terms, such as "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0032] As Figures 1 to 5The utility model discloses an embodiment provides a kind of valve body structure requiring quick closing and with buffer, including discharge valve seat 1, the one side of discharge valve seat 1 is inserted with feed valve seat 2, feed valve seat 2 one side is provided with feed inlet 13, feed valve seat 2 is provided with feed cavity inside, discharge valve seat 1 is provided with discharge cavity inside, the one side of discharge valve seat 1 is inserted with oil cylinder 3, the inside of oil cylinder 3 is equipped with piston rod 4, the material of piston rod 4 is hard alloy, piston rod 4 is sleeved with wear-resistant sleeve 5 on the surface, wear-resistant sleeve 5 is located between piston rod 4 and small ring rear seat 8, the material of wear-resistant sleeve 5 is rubber, one end of piston rod 4 is inserted with screw rod 6, fixed nut 7 is screwed on the surface of screw rod 6, screw rod 6 is sleeved with small ring rear seat 8, small ring rear seat 8 is provided with exhaust pipeline 17 inside, screw rod 6 is sleeved with small ring front seat 9, small ring front seat 9 is provided with butt joint pipeline 18 inside, butt joint pipeline 18 and exhaust pipeline 17 are mutually penetrated, the surface of small ring front seat 9 is equipped with sealing small ring 14, the material of sealing small ring 14 is rubber, valve disc nut 10 is screwed on the surface of screw rod 6, valve disc nut 10 is located at the side of small ring front seat 9, the number of valve disc nut 10 is two, screw rod 6 is sleeved with spring 11, spring 11 is located between small ring rear seat 8 and small ring front seat 9, the material of spring 11 is stainless steel, the inside of discharge valve seat 1 is equipped with sealing big ring 12, the material of sealing big ring 12 is rubber, the inside of sealing big ring 12 is ladder shape, the inside of sealing big ring 12 is equipped with butt joint clamping strip 15, the material of butt joint clamping strip 15 is rubber, butt joint clamping strip 15 is sharp cone shape, the one side of butt joint clamping strip 15 is provided with recess, recess and small ring front seat 9 are mutually contacted, the inside of sealing big ring 12 is equipped with fixed clamping strip 16, the material of fixed clamping strip 16 is rubber, recess is provided in the inside of fixed clamping strip 16.

[0033] The material is fed into the feeding cavity of the feeding valve seat 2 through the feeding port 13 on one side of the feeding valve seat 2, the screw rod 6 and the piston rod 4 are fixed through the fixed nut 7, the small ring rear seat 8 and the small ring front seat 9 are fixed on the screw rod 6 through the valve disc nut 10, the piston rod 4 is moved in the discharging valve seat 1 through the oil cylinder 3, the material flows into the discharging cavity of the discharging valve seat 1 from the feeding cavity after the small ring front seat 9 leaves the sealing large ring 12, the small ring front seat 9 contacts the sealing large ring 12, the small ring rear seat 8 and the piston rod 4 are protected through the wear-resistant sleeve 5, the sealing small ring 14 and the sealing large ring 12 are in contact to seal and buffer, the butt joint clamping strip 15 is adsorbed to the surface of the small ring front seat 9 after the small ring front seat 9 contacts the groove on one side of the butt joint clamping strip 15, the butt joint clamping strip 15 enters the groove of the fixed clamping strip 16 to seal, the inside of the sealing large ring 12 is in a stepped shape, the fixed clamping strip 16 expands outward when the butt joint clamping strip 15 and the fixed clamping strip 16 contact each other, and there is a certain space behind the fixed clamping strip 16 for buffering, the piston rod 4 moves quickly with the small ring front seat 9 to transport the material, the service life of the valve body is prolonged, the internal structure of the valve body is protected and buffered, the valve body has a longer service time, the sealing of the valve body is better, and therefore the sealing effect of the butt joint clamping strip 15 and the fixed clamping strip 16 is not good after the valve body is used for a period of time and the butt joint clamping strip 15 and the fixed clamping strip 16 are used for a long time, the space left behind the fixed clamping strip 16 plays a certain maintaining role, the sealing large ring 12 cannot be dislocated to cause material leakage, the valve body cannot work normally, and the material in the small ring rear seat 8 and the small ring front seat 9 is discharged through the exhaust pipeline 17 and the butt joint pipeline 18.

[0034] The utility model discloses a technical scheme working principle is as follows: through fixed nut 7 makes screw rod 6 and piston rod 4 fixed, through valve disc nut 10 be fixed in screw rod 6 with small ring rear seat 8 and small ring front seat 9, through oil cylinder 3 with piston rod 4 in discharging valve seat 1 movement, through small ring front seat 9 leave sealing large ring 12 after, make material from feeding cavity flow into the discharging cavity of discharging valve seat 1, again make small ring front seat 9 contact sealing large ring 12 after, through sealing small ring 14 and sealing large ring 12 mutual contact carry out airtight and buffer, through small ring front seat 9 contact the recess on one side of butt joint clamping strip 15 after, make butt joint clamping strip 15 adsorb to the surface of small ring front seat 9, through butt joint clamping strip 15 enter the recess of fixed clamping strip 16, carry out sealing operation, the inside of sealing large ring 12 is in stepped shape, when butt joint clamping strip 15 and fixed clamping strip 16 contact each other, fixed clamping strip 16 will expand outward, and fixed clamping strip 16 rear still has certain space for buffering, make piston rod 4 with small ring front seat 9 quick movement to transport material, small ring rear seat 8 and small ring front seat 9 material through exhaust pipeline 17 and butt joint pipeline 18 discharge.

[0035] The utility model covers any alternative, modification, equivalent method and scheme which are made on the essence and range of the utility model. In order to make the public have the thorough understanding of the utility model, the specific details are explained in the following preferred embodiment of the utility model, and the utility model can also be completely understood without the description of these details for the person skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the utility model, the well-known method, process, flow, element and circuit are not explained in detail.

[0036] The above only is the preferred implementation of the utility model, should point out, for the ordinary skill in the art of the present technology, on the premise of not departing from the principle of the utility model, still can make a number of improvement and embellishment, these improvements and embellishment also should be regarded as the protection range of the utility model.

Claims

1. A valve body structure requiring rapid closure and with buffering, characterized in that, The device includes a discharge valve seat, an inlet valve seat inserted into one side of the discharge valve seat, and a hydraulic cylinder inserted into one side of the discharge valve seat. The hydraulic cylinder contains a piston rod, the surface of which is fitted with a wear-resistant sleeve. A screw is inserted into one end of the piston rod, a fixing nut is threaded through the surface of the screw, a small ring rear seat is fitted onto the surface of the screw, a small ring front seat is fitted onto the surface of the screw, a valve disc nut is threaded through the surface of the screw, and a spring is fitted onto the surface of the screw. A large sealing ring is located inside the discharge valve seat.

2. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The feed valve seat has a feed port on one side and a feed chamber inside.

3. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The discharge valve seat has a discharge chamber inside, and the piston rod is made of hard alloy.

4. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The surface of the small ring front seat is provided with a sealing small ring, and the sealing small ring is made of rubber.

5. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The spring is located between the rear seat of the small ring and the front seat of the small ring, and the spring is made of stainless steel.

6. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The sealing ring is made of rubber, and the inside of the sealing ring has a stepped shape.

7. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The sealing ring has a mating strip inside, which is made of rubber and is cone-shaped.

8. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The sealing ring has a retaining strip inside, which is made of rubber and has a groove inside.

9. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The rear seat of the small ring has a suction pipe inside, and the front seat of the small ring has a docking pipe inside.

10. The valve body structure with rapid closure and buffer as described in claim 1, characterized in that, The valve disc nut is located on one side of the small ring front seat, and there are two valve disc nuts. The wear-resistant sleeve is located between the piston rod and the small ring rear seat, and the wear-resistant sleeve is made of rubber.

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