Eye valve with long service life
阅读说明：本技术 使用寿命高的眼睛阀 (Eye valve with long service life ) 是由 吴亚超 翟婉彤 王雪梅 于 2019-11-01 设计创作，主要内容包括：本发明提供一种使用寿命高的眼睛阀,包括支架；左阀体,左阀体包括第一阀体、第二阀体；右阀体；中阀体；弹性件；驱动机构,驱动机构包括第一驱动机构以及第二驱动机构。通过伸缩件的设计,使得第二阀体可向第一阀体滑动,从而使得第二阀体与中阀体之间产生间隔,同时利用弹性件的设计,在使用时,当第二阀体在轴向运动远离中阀体时,弹簧在自身弹力的作用下将中阀体推离,使得中阀体与右阀体之间产生间隔,从而解决将中阀体由堵塞第二通孔和第三通孔向连通第二通孔和第三通孔转换时或相反状态,中阀体和第二阀体、右阀体之间产生硬摩擦,损坏阀体的问题,从而保证眼睛阀的使用寿命。(The invention provides an eye valve with long service life, which comprises a bracket; the left valve body comprises a first valve body and a second valve body; a right valve body; a middle valve body; an elastic member; the driving mechanism comprises a first driving mechanism and a second driving mechanism. Through the design of extensible member, make the second valve body can slide to first valve body, thereby make and produce the interval between second valve body and the well valve body, utilize the design of elastic component simultaneously, when using, when the second valve body is kept away from well valve body at axial motion, the spring pushes away well valve body under the effect of self elasticity from, make and produce the interval between well valve body and the right valve body, thereby solve when with well valve body by blockking up second through-hole and third through-hole to intercommunication second through-hole and third through-hole conversion or opposite state, well valve body and second valve body, produce the hard friction between the right valve body, damage the problem of valve body, thereby guarantee the life of eye valve.)
1. An eye valve with long service life, which is characterized by comprising
The bracket comprises a first fixed rod, a second fixed rod and a third fixed rod which are distributed in an isosceles or equilateral triangle shape in the axial direction;
the left valve body comprises a first valve body and a second valve body which are sequentially arranged in the left-right direction, a first through hole is formed in the first valve body, a second through hole is formed in the second valve body, the first through hole and the second through hole are coaxial, the first valve body is fixed at the left end of the support, the second valve body is in sliding fit with the support, and a telescopic piece is arranged between the first valve body and the second valve body so that the second valve body and the first valve body can axially move and are radially and fixedly matched;
the right valve body is fixed on the bracket and provided with a third through hole which is coaxial with the second through hole, and the right valve body and the left valve body are axially matched at intervals;
the middle valve body is in radial direction of the first fixing rod, one end of the middle valve body is in rotating fit with the first fixing rod, in the rotating process of the middle valve body, the other end of the middle valve body is in contact fit or clearance fit with the second fixing rod and the third fixing rod, one axial end of the middle valve body is in contact fit with the second valve body, the other end of the middle valve body is in contact fit with the right valve body, and the middle valve body is provided with a ring-shaped element for communicating the second through hole with the third through hole and a sealing element for plugging the space between the second through hole and the third through hole;
the elastic piece is in a contraction state, the elastic pieces are sleeved on the first fixing rod, the second fixing rod and the third fixing rod and are positioned between the middle valve body and the right valve body, and the time gap for contact fit or clearance fit between the other end of the middle valve body and the second fixing rod and the third fixing rod is smaller than the thickness of the elastic pieces;
and the driving mechanism comprises a first driving mechanism for driving the second valve body to move in the axial direction and a second driving mechanism for driving the middle valve body to rotate so as to block the second through hole and the third through hole or communicate the second through hole and the third through hole.
2. A high life eye valve according to claim 1, wherein said resilient member is a spring.
3. An eye valve of claim 1, wherein a stopper is provided at the left side of the sliding engagement portion between the second valve body and the holder.
4. The long-life eye valve of claim 1, wherein the first driving mechanism comprises a gear wheel, a first driving cylinder for driving the gear wheel to rotate, and an axially fixed rotating shaft assembly, the gear wheel is sleeved on the first valve body and is axially fixed and circumferentially rotationally matched with the first valve body, the rotating shaft assembly comprises a rotating shaft and a pinion, the pinion is fixedly installed on the rotating shaft, the gear wheel is meshed with the pinion, a threaded section is arranged at the right end of the rotating shaft and is in threaded fit with the second valve body, one end of the first driving cylinder is hinged and installed on the support, the other end of the first driving cylinder is hinged and installed on the gear wheel, and the outer diameter of the gear wheel is more than 5 times of the outer diameter of the pinion.
5. An eye valve according to claim 4, wherein the first actuating cylinder is connected to a universal joint, and the universal joint is connected to a gearwheel.
6. The high life ocular valve of claim 4, wherein there are 3 spindle assemblies equally spaced circumferentially.
7. The long-life eye valve of claim 1, wherein the second driving means comprises a second driving cylinder for driving the middle valve body to rotate about a connection portion with the first fixing rod, one end of the second driving cylinder being pivotally mounted on the supporting frame, and the other end of the second driving cylinder being pivotally mounted on the middle valve body.
8. An eye valve with long service life as claimed in claim 6, wherein the middle valve body comprises a sleeve sleeved on the first fixing rod, the sleeve has an extension part in radial direction, the end of the extension part is fixedly provided with a connecting rod with an axis parallel to the axis of the first fixing rod, and the connecting rod is hinged with the second driving oil cylinder.
9. An eye valve according to claim 4, wherein a plurality of support blocks are uniformly distributed on the outer wall of the first valve body, and the gear wheel is in contact fit with the support blocks.
Technical Field
The invention relates to an eye valve, in particular to an eye valve with long service life.
Background
A conventional eye valve, for example, a power eye valve disclosed in patent CN204755961U, has a specific structure as follows: comprises that
The valve body comprises a left valve body, a middle valve body and a right valve body, the left valve body, the middle valve body and the right valve body are triangles with the same size, the left valve body, the middle valve body and the right valve body are sequentially arranged adjacently, the left valve body and the middle valve body are connected through connecting pieces, sealing rings are arranged between the left valve body and the middle valve body and between the middle valve body and the right valve body, and through holes with the same size are arranged in the left valve body, the middle valve body and the right valve body correspondingly;
the valve plate is fan-shaped, a blind plate and a through plate are arranged on the valve plate, and the valve plate is arranged in the valve body;
the electric device comprises a motor and a transmission screw rod, the motor is connected with the transmission screw rod, the transmission screw rod is connected with the valve plate and can control the valve plate to open and close, and the electric device is arranged at the top of the valve body;
the locking device comprises swing arms and a support, the swing arms are distributed around the through hole of the valve body in a triangular shape, the connected swing arms are connected through the support, and the support is connected with the electric device;
the support comprises a transverse plate and a vertical plate, the top of the vertical plate is arc-shaped, the bottom of the vertical plate is memorable, and the vertical plate and the transverse plate form an L-shaped whole;
a dovetail groove is formed in the circumferential direction of the blind plate, and an O-shaped sealing ring is installed in the dovetail groove.
The valve is driven by a motor, the valve plate is driven by a driving screw rod, and the left valve body, the middle valve body and the right valve body are driven by the driving screw rod to move.
Disclosure of Invention
The invention provides an eye valve with long service life, aiming at the defects of the prior art, the second valve body can slide towards the first valve body through the design of a telescopic piece, so that a space is generated between the second valve body and the middle valve body, and meanwhile, by utilizing the design of an elastic piece, when the second valve body moves in the axial direction and is far away from the middle valve body in use, the middle valve body is pushed away by a spring under the action of the self elastic force, so that the space is generated between the middle valve body and the right valve body, thereby solving the problem that when the middle valve body is switched to a state of communicating the second through hole and the third through hole from blocking the second through hole and the third through hole or in an opposite state, hard friction is generated between the middle valve body and the second valve body as well as the right valve body, and the service life of the eye valve is ensured.
In order to achieve the purpose, the invention provides the following technical scheme: an eye valve with long service life comprises
The bracket comprises a first fixed rod, a second fixed rod and a third fixed rod which are distributed in an isosceles or equilateral triangle shape in the axial direction;
the left valve body comprises a first valve body and a second valve body which are sequentially arranged in the left-right direction, a first through hole is formed in the first valve body, a second through hole is formed in the second valve body, the first through hole and the second through hole are coaxial, the first valve body is fixed at the left end of the support, the second valve body is in sliding fit with the support, and a telescopic piece is arranged between the first valve body and the second valve body so that the second valve body and the first valve body can axially move and are radially and fixedly matched;
the right valve body is fixed on the bracket and provided with a third through hole which is coaxial with the second through hole, and the right valve body and the left valve body are axially matched at intervals;
the middle valve body is in radial direction of the first fixing rod, one end of the middle valve body is in rotating fit with the first fixing rod, in the rotating process of the middle valve body, the other end of the middle valve body is in contact fit or clearance fit with the second fixing rod and the third fixing rod, one axial end of the middle valve body is in contact fit with the second valve body, the other end of the middle valve body is in contact fit with the right valve body, and the middle valve body is provided with a ring-shaped element for communicating the second through hole with the third through hole and a sealing element for plugging the space between the second through hole and the third through hole;
the elastic piece is in a contraction state, the elastic pieces are sleeved on the first fixing rod, the second fixing rod and the third fixing rod and are positioned between the middle valve body and the right valve body, and the time gap for contact fit or clearance fit between the other end of the middle valve body and the second fixing rod and the third fixing rod is smaller than the thickness of the elastic pieces;
and the driving mechanism comprises a first driving mechanism for driving the second valve body to move in the axial direction and a second driving mechanism for driving the middle valve body to rotate so as to block the second through hole and the third through hole or communicate the second through hole and the third through hole.
In addition to the above, preferably, the elastic member is a spring.
In addition to the above, preferably, a stopper is provided on a left side of the slidably engaging portion between the second valve body and the bracket.
On the basis of above-mentioned scheme, as preferred, first actuating mechanism includes gear wheel, drive gear wheel pivoted first actuating cylinder and axially fixed's pivot subassembly, gear wheel suit on first valve body and with first valve body between the axially fixed circumference normal running fit, the pivot subassembly includes pivot, pinion fixed mounting in the pivot, the gear wheel with pinion engagement, the right-hand member of pivot have the screw thread section, the screw thread section with second valve body between screw-thread fit, first actuating cylinder one end hinged mounting is on the support, the other end hinged mounting is on the gear wheel.
On the basis of the scheme, preferably, the first driving oil cylinder is connected with a universal joint, and the universal joint is connected with a large gear.
On the basis of the above scheme, preferably, there are 3 rotating shaft assemblies which are uniformly distributed in the circumferential direction.
On the basis of the above scheme, preferably, the second driving mechanism comprises a second driving oil cylinder for driving the middle valve body to rotate by taking the connecting part of the middle valve body and the first fixing rod as a center, one end of the second driving oil cylinder is hinged on the supporting frame, and the other end of the second driving oil cylinder is hinged on the middle valve body.
On the basis of the scheme, preferably, the middle valve body comprises a sleeve sleeved on the first fixing rod, an extending part is arranged on the sleeve in the radial direction, a connecting rod with an axis parallel to the axis of the first fixing rod is fixedly arranged at the end part of the extending part, and the connecting rod is hinged with the second driving oil cylinder.
Compared with the prior art, the invention has the beneficial effects that:
1. through the design of extensible member, make the second valve body can slide to first valve body, thereby make and produce the interval between second valve body and the well valve body, utilize the design of elastic component simultaneously, when using, when the second valve body is kept away from well valve body at axial motion, the spring pushes away well valve body under the effect of self elasticity from, make and produce the interval between well valve body and the right valve body, thereby solve when with well valve body by blockking up second through-hole and third through-hole to intercommunication second through-hole and third through-hole conversion or opposite state, well valve body and second valve body, produce the hard friction between the right valve body, damage the problem of valve body, thereby guarantee the life of eye valve.
2. The elastic part is a spring, and the spring belongs to a standard part, is easy to purchase, has mature technology and is convenient to use.
3. The limiting piece is combined with the elastic piece, so that hard friction between the middle valve body and the second valve body and between the middle valve body and the right valve body when the two states of state plugging and communication are switched is avoided, and the service life of the valve is prolonged.
4. The gear wheel drives the design of pinion, and the gear wheel only needs to rotate very little angle can realize the multiturn of rotation of pinion, and then drives the motion of second valve body to reduce power take off, practice thrift power, the telescopic link stroke of first actuating cylinder is short, and the response is fast.
Drawings
FIG. 1 is a first perspective view of the present invention;
fig. 2 is a perspective view two of the present invention.
Detailed Description
The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to FIGS. 1-2, a high life ocular valve includes
The support comprises a first
the left valve body comprises a first valve body 2 and a second valve body 3 which are sequentially arranged in the left-right direction, a first through hole is formed in the first valve body, a second through hole is formed in the second valve body, the first through hole and the second through hole are coaxial, the first valve body is fixed at the left end of the support, the second valve body is in sliding fit with the support, and a
the right valve body 5 is fixed on the bracket and is provided with a third through hole 9 which is coaxial with the second through hole, and the right valve body and the left valve body are matched at intervals in the axial direction;
the middle valve body 6 is in a radial direction of the first fixing rod, one end of the middle valve body is in rotating fit with the first fixing rod, in the rotating process of the middle valve body, the other end of the middle valve body is in contact fit or clearance fit with the second fixing rod and the third fixing rod, one axial end of the middle valve body is in contact fit with the second valve body, the other end of the middle valve body is in contact fit with the right valve body, and the middle valve body is provided with a ring-
the elastic piece is in a contraction state, the
and the driving mechanism comprises a first driving mechanism for driving the second valve body to move in the axial direction and a second driving mechanism for driving the middle valve body to rotate so as to block the second through hole and the third through hole or communicate the second through hole and the third through hole.
In foretell scheme, through the design of extensible member, make the second valve body can slide to first valve body, thereby make and produce the interval between second valve body and the well valve body, utilize the design of elastic component simultaneously, when using, when the second valve body is kept away from well valve body at axial motion, the spring pushes away from well valve body under the effect of self elasticity, make and produce the interval between well valve body and the right valve body, thereby solve when with well valve body by blockking up second through-hole and third through-hole to intercommunication second through-hole and third through-hole conversion or opposite state, produce the hard friction between well valve body and second valve body, the right valve body, damage the problem of valve body, thereby guarantee the life of eye valve.
Wherein, the telescopic part is preferably a corrugated pipe.
Wherein, the elastic component is the spring, and the spring belongs to the standard component, easily purchases, and the technology is mature, convenient to use.
The limiting
Wherein, the first driving mechanism comprises a big gear 12, a first driving oil cylinder driving the big gear to rotate and a rotating shaft component fixed axially, the big gear is sleeved on the first valve body and is in axial fixed circumferential rotation fit with the first valve body, the rotating shaft component comprises a rotating shaft 13 and a small gear 14, the small gear is fixedly arranged on the rotating shaft, the big gear is meshed with the small gear, the right end of the rotating shaft is provided with a thread section which is in thread fit with the second valve body, one end of the first driving oil cylinder is hinged on a support, the other end of the first driving oil cylinder is hinged on the big gear, wherein, the outer diameter of the big gear is more than 5 times of the outer diameter of the small gear, the big gear can realize multi-circle rotation of the small gear by only rotating a small angle, and then drives the second valve body to move, thereby reducing power, the response is fast.
Wherein the first drive cylinder and the threaded section are not shown in the figures.
The first driving oil cylinder is connected with a universal joint 15, the universal joint is connected with a large gear, and the universal joint can be replaced by any other hinged parts.
The pivot subassembly has 3, equally divide the distribution in circumference, and 3 pivot subassemblies form regular triangle's distribution mode, and the structure is firm.
The second driving mechanism comprises a second driving oil cylinder for driving the middle valve body to rotate by taking the connecting part of the middle valve body and the first fixing rod as a center, one end of the second driving oil cylinder is hinged to the supporting frame, and the other end of the second driving oil cylinder is hinged to the middle valve body.
The middle valve body comprises a sleeve 16 sleeved on the first fixing rod, the sleeve is also a connecting part, the sleeve is driven by the second driving oil cylinder to automatically pass, an extending part 17 is arranged on the radial direction of the sleeve, a connecting
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
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