CN210068968U - Locking mechanism of butterfly valve weight type transmission device - Google Patents

Abstract

The utility model discloses a butterfly valve counter weight transmission's locking mechanical system, including frame and weight, be formed with the swing groove in the frame, the weight passes through the pendulum rod swing and sets up on the swing groove, it is provided with the ejection piece that is used for ejector pendulum rod messenger weight to stand to correspond the pendulum rod in the frame, the ejection piece sets up in the pendulum rod below, be provided with the locating hole in the frame, the locating hole is higher than swing groove position setting, the frame still is provided with the location pendulum and detains, the location pendulum is detained and is set up on the locating hole through the connecting axle swing, the location pendulum is detained one end and is the free end, and the other end is for the location end and be provided with the barb, be provided with the location hook on the pendulum rod, the location hook forms the location to the back of the. The automatic locking device can be automatically put in after the heavy hammer is lifted in place, the lifted heavy hammer can be locked without additional locking operation, the structure is stable, the locking operation is convenient and fast, and the energy waste can be reduced.

Description

Locking mechanism of butterfly valve weight type transmission device

Technical Field

The utility model belongs to the technical field of the valve drive technique and specifically relates to a butterfly valve weight formula single action transmission's locking mechanical system.

Background

The butterfly valve often uses the transmission structure of the weight type to control the make-and-break of the liquid in the pipeline, push against the weight through the ejector device when using, make the weight swing and rise, thus open the valve road and realize the access, when needing to close the valve road, make the weight drop and drive the structure inside the pipeline and realize the rapid closure of the pipeline, the locking after the weight rises usually adopts the way that the ejector device pushes against continuously at present, when closing the valve road, relieve and push against and make the weight drop, this kind of structure weight part is continuously supported against on the ejector device, the ejector device is in the working condition continuously, waste the energy, the lasting pressurized can influence the service life of the ejector device at the same time, influence the stability of the structure; and the working mode of continuously supplementing energy to compensate the leakage of the hydraulic system is not suitable for the working condition requirement of the overspeed shutoff valve of the long water transmission pipeline on non-electricity maintenance-free self-retaining.

Or the locking pin is vertical to the lifting track surface of the heavy hammer, when the lifting hammer is opened, the external force is released, and when the opening is in place, the external force is put into locking; when the valve is closed, the lock is withdrawn by external force, and the heavy hammer falls down to close the valve. However, the electric automatic working mode of locking and unlocking actions requiring external force participation is not suitable for the working condition requirement of the non-electric operation of the overspeed shutoff valve of the long water transmission pipeline.

Or the gravity center of the heavy hammer leans against the machine body structure through a critical line and then passes through the other pushing piece in the horizontal direction, when the valve path is closed, the output end of the pushing piece pushes the heavy hammer to cross the central axis and then fall, and therefore the valve path is quickly closed through the gravity of the heavy hammer. However, the valve closing pushing stroke is long, the operating force is large, and the low-pressure medium of the water conveying pipeline is not suitable to be directly used as a power source; and the verticality of valve installation and the possible jamming condition of long-term non-action of the valve can cause great influence on the closing action of the valve, the reaction speed is low, the emergency can not be well responded, and the safety performance and the use effect of the whole equipment are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a butterfly valve weight formula transmission's locking mechanical system can effectively lock the weight of having rocked, its stable in structure, locking simple operation to can reduce the waste of the energy.

The utility model provides a butterfly valve weight formula transmission's locking mechanical system, including frame and weight, be formed with the swing groove in the frame, the weight passes through the pendulum rod swing and sets up on the swing groove, it is provided with the ejection piece that is used for ejecting pendulum rod messenger weight to stand to correspond the pendulum rod in the frame, the ejection piece sets up in the pendulum rod below, be provided with the locating hole in the frame, the locating hole is higher than swing groove position setting, the frame still is provided with the location pendulum and detains, the location pendulum is detained and is set up on the locating hole through the connecting axle swing, the location pendulum is detained one end and is the free end, and the other end is for the location end and be provided with the barb, be provided with the location hook on the pendulum rod, the location hook forms the location to the weight after.

The beneficial effect who so sets up is: the counter weight is set in the mode, the counter weight is enabled to stand to accumulate gravitational potential energy through the ejector, the standing of the counter weight does not exceed a critical line, no external force is applied to the counter weight and can fall back against the standing direction in the state, in the standing process, the positioning hook on the swing rod can be abutted against the barb, meanwhile, the positioning swing buckle deflects, the positioning hook falls into the hook groove of the barb to achieve buckling, the ejector completes working after the buckling is completed, the counter weight can strain the positioning swing buckle under the action of self gravity, the positioning swing buckle is rotatably arranged on the base, and therefore the counter weight is pulled, the counter weight cannot fall down, and the positioning of the counter weight is completed. The locking device is simple in structure, capable of better positioning the heavy hammer, quite convenient to lock and operate, capable of being released only by enabling the swinging piece to rotate in the releasing direction when unlocking is needed, beneficial to operation and realization and capable of improving the using effect of the whole structure.

The utility model discloses further set up to the barb lateral surface is slick and sly curved surface, the location hook lateral surface moves along barb lateral surface radian and forms the lock of location hook and barb.

The beneficial effect who so sets up is: by adopting the scheme, the hook is designed to be a smooth curved surface, so that the buckling action can be more smoothly realized, and the using effect of the whole structure is improved.

The utility model discloses further set up to the barb medial surface is first smooth inclined plane, the locating hook is last to be the smooth inclined plane of second with the contact surface of barb medial surface, first smooth inclined plane laminates the lock that forms barb and locating hook with the smooth inclined plane of second mutually.

The beneficial effect who sets up like this is, adopts above-mentioned scheme, and first smooth inclined plane laminates with the smooth inclined plane of second mutually, can further improve the connection effect of barb and location hook lock, improves overall structure's stability and result of use.

The utility model discloses further set up as in the frame in the location pendulum detain the free end and correspond the position and still be provided with and be used for making the location pendulum detain towards dropout direction pivoted dropout jar, dropout jar output sets up and sets up in location pendulum rod free end below along the direction of height.

The beneficial effect who so sets up is: adopt above-mentioned scheme, set up the dropout jar, need not pull the location pendulum through the manual work and detain and realize the dropout, and the setting of dropout jar is detained the free end below at the location pendulum, can easily realize the dropout through the ejection of output and make the weight fall, and can detain the free end and increase the arm of force with the length of articulated department through increasing the location pendulum, thereby can be more relaxed trip, do not need great tripping force, thereby reduce the power requirement of dropout jar, make overall structure have shorter reaction time, for example, set up the dropout jar into the hydraulic cylinder, change through the pressure of rivers in the discernment pump valve, introduce the hydraulic cylinder with rivers, thereby realize the automatic identification dropout, effectively improve overall structure's result of use.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1 according to an embodiment of the present invention;

fig. 3 is a partial enlarged view of the portion a in fig. 1 in a tripping state according to the embodiment of the present invention.

Detailed Description

As can be seen from fig. 1, 2 and 3, the locking mechanism of the butterfly valve weight type transmission device is disclosed, which comprises a frame 1 and a weight 3, a swinging groove is formed on the frame 1, the heavy hammer 3 is arranged on the swinging groove in a swinging way through a swinging rod 4, the frame 1 is provided with a pushing piece 2 corresponding to the swing rod 4 for pushing the swing rod 4 to make the heavy hammer 3 stand up, the ejector 2 is arranged below the swing rod 4, the frame 1 is provided with a positioning hole which is arranged higher than the swing groove, the frame 1 is also provided with a positioning pendulum buckle 5, the positioning pendulum buckle 5 is arranged on the positioning hole through the connecting shaft in a swinging way, one end of the positioning pendulum buckle 5 is a free end, the other end of the positioning pendulum buckle is a positioning end and is provided with a barb 51, the swing rod 4 is provided with a positioning hook 41, and the positioning hook 41 is buckled with the barb 51 to form positioning after the counterweight 3 is erected. The beneficial effect who so sets up is: the counter weight 3 is erected to accumulate gravitational potential energy through the ejector 2, the erection of the counter weight 3 does not exceed a critical line, no external force acts on the counter weight in the state and the counter weight can fall back against the erection direction, in the process of erection, the positioning hook 41 on the swing rod 4 can abut against the barb 51 and meanwhile the positioning pendulum buckle 5 is deflected, so that the positioning hook 41 falls into a hook groove of the barb 51 to realize buckling, after the buckling is completed, the ejector 2 completes the work, at the moment, the counter weight 3 can strain the positioning pendulum buckle 5 under the action of self gravity, and the positioning pendulum buckle 5 is rotatably arranged on the base, so that the counter weight 3 is pulled, the counter weight 3 cannot fall down, and the positioning of the counter weight 3 is completed. The locking device is simple in structure, capable of better positioning the heavy hammer 3, quite convenient to lock and operate, capable of being released only by enabling the swinging piece to rotate in the releasing direction when unlocking is needed, beneficial to operation and realization and capable of improving the using effect of the whole structure.

The outer side surface of the barb 51 is a smooth curved surface, and the outer side surface of the positioning hook 41 moves along the outer side surface of the barb 51 in an arc manner to form the buckling of the positioning hook 41 and the barb 51. The beneficial effect who so sets up is: by adopting the scheme, the hook is designed to be a smooth curved surface, so that the buckling action can be more smoothly realized, and the using effect of the whole structure is improved.

The inner side surface of the barb 51 is a first smooth inclined surface, the contact surface of the positioning hook 41 and the inner side surface of the barb 51 is a second smooth inclined surface, and the first smooth inclined surface and the second smooth inclined surface are attached to each other to form buckling of the barb 51 and the positioning hook 41. The beneficial effect who sets up like this is, adopts above-mentioned scheme, and first smooth inclined plane is laminated mutually with the smooth inclined plane of second, can further improve the connection effect of barb 51 and location hook 41 lock, improves overall structure's stability and result of use.

A tripping cylinder 6 for enabling the positioning swing buckle 5 to rotate towards a tripping direction is further arranged at a position, corresponding to the free end of the positioning swing buckle 5, on the rack 1, and an output end of the tripping cylinder 6 is arranged along the height direction and is arranged below the free end of the positioning swing rod 4. The beneficial effect who so sets up is: adopt above-mentioned scheme, set up dropout jar 6, need not pull location pendulum through the manual work and detain 5 realization threading backs, and 5 free end below is detained at the location pendulum to 6 output settings of dropout jar, can easily realize the threading back through the ejection of output and make weight 3 fall down, and can detain 5 free ends and articulated department's length through increasing the location pendulum and increase the arm of force, thereby can be more relaxed thread back, do not need great threading back force, thereby reduce the power requirement of dropout jar 6, make overall structure have shorter reaction time, for example, set up dropout jar 6 into the hydraulic cylinder, change through the pressure of rivers in the discernment pump valve, introduce the hydraulic cylinder with rivers, thereby realize the automatic identification threading back, effectively improve overall structure's result of use.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, so that the equivalent changes made in the claims of the present invention, such as equivalent products with similar processes and similar structures, are also included in the scope of the present invention.

Claims (4)

1. The utility model provides a butterfly valve weight formula transmission's locking mechanical system, includes frame and weight, be formed with the swing groove in the frame, the weight passes through the pendulum rod swing and sets up on the swing groove, correspond the pendulum rod in the frame and be provided with the ejection piece that is used for ejecting pendulum rod messenger weight standing, the ejection piece sets up in the pendulum rod below, its characterized in that: the positioning device is characterized in that a positioning hole is formed in the rack and is higher than the swinging groove in position, a positioning pendulum buckle is further arranged on the rack and is arranged on the positioning hole in a swinging mode through a connecting shaft, one end of the positioning pendulum buckle is a free end, the other end of the positioning pendulum buckle is a positioning end and is provided with a barb, a positioning hook is arranged on the swinging rod, and the positioning hook and the barb are buckled to form positioning after the counterweight is erected.

2. The butterfly valve weight hammer transmission locking mechanism of claim 1, wherein: the outer side surface of the barb is a smooth curved surface, and the outer side surface of the positioning hook moves along the outer side surface of the barb in a radian manner to form the buckling of the positioning hook and the barb.

3. The butterfly valve weight hammer transmission locking mechanism of claim 2, wherein: the inner side surface of the barb is a first smooth inclined surface, the contact surface of the positioning hook and the inner side surface of the barb is a second smooth inclined surface, and the first smooth inclined surface is attached to the second smooth inclined surface to form buckling of the barb and the positioning hook.

4. A butterfly valve and weight hammer type transmission locking mechanism as claimed in claim 1, 2 or 3, wherein: and a tripping cylinder for enabling the positioning swing buckle to rotate towards a tripping direction is further arranged at a position corresponding to the free end of the positioning swing buckle on the rack, and the output end of the tripping cylinder is arranged along the height direction and is arranged below the free end of the positioning swing rod.

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