CN209909285U - Manual butterfly valve - Google Patents

Abstract

The utility model discloses a manual butterfly valve relates to valve technical field, and its technical scheme main points are: the butterfly valve comprises a butterfly valve body, a valve rod and a hand wheel, wherein the valve rod and the hand wheel are arranged on the butterfly valve body and used for controlling the butterfly valve body to open and close, an insertion groove is formed in one end, away from the butterfly valve body, of the valve rod, a connecting rod is fixedly arranged at the central axis of the hand wheel, the connecting rod is inserted into the insertion groove, a limiting hole is formed in the side wall, inserted into the insertion groove, of the insertion groove, a limiting pin is arranged on the side wall, close to the hand wheel, of the valve rod in a sliding mode, a limiting pin is arranged in a penetrating mode, one end of the limiting pin stretches into. Can control the spacer pin through control ejector pin subassembly and break away from spacing hole, can dismantle the connecting rod to take off the hand wheel, need not the dismouting that the instrument can realize the hand wheel, simple structure has the effect that improves the convenience of dismouting hand wheel.

Description

Manual butterfly valve

Technical Field

The utility model relates to the technical field of valves, more specifically say, it relates to a manual butterfly valve.

Background

A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. Butterfly valves are typically opened and closed by a hand wheel; most butterfly valves are installed outdoors nowadays, and the butterfly valves are unattended all the year round, so that hand wheels on valve bodies are frequently lost, and great inconvenience is brought to production; in order to solve the above problems, the handwheel is usually designed to be detachable, and after the valve is operated, the handwheel is detached to prevent theft.

If the granted bulletin number is CN207195811U, the bulletin date is 2018.04.06, which discloses a butterfly valve with a detachable handwheel, comprising a valve rod and a handwheel, wherein the handwheel comprises a handwheel body, the handwheel body comprises a central piece arranged at the center of the handwheel body and a handwheel handle connected with the central piece, the central piece is arranged on an axis extension line of the handwheel handle, the handwheel is fixedly connected with the valve rod through a connecting device, the central piece is provided with a central convex block towards the end surface of the valve rod, the central convex block is embedded at the end part of the valve rod and used for driving the valve rod to rotate, the side wall of the valve rod is attached and symmetrically arranged with a plurality of fasteners, the fasteners pass through the handwheel handle and intersect above the central piece, the fasteners are arranged above the central piece and provided with extending parts, and all the extending parts intersecting above the central piece are spliced to form, the connecting device is characterized in that external threads are arranged on the outer peripheral surface of the stable inner core, the connecting device further comprises a positioning piece for fixing the external threads, the positioning piece is provided with a stable cavity for the stable inner core to enter, the inner wall of the stable cavity is provided with internal threads matched with the external threads of the stable inner core, and the stable cavity is matched with the stable inner core in a threaded manner.

Through utilizing setting element and firm inner core screw-thread fit to can be fixed in the valve rod with the hand wheel on, during the dismantlement, need utilize the instrument to unscrew the setting element from firm inner core, thereby break off each buckling piece off with the fingers and thumb, can take off the hand wheel, realize the dismouting of hand wheel. But overall structure is complicated, if certain buckling piece damages just unable dismouting hand wheel, and utilizes the dismouting that the hand wheel just can be realized to the instrument, leads to the whole dismouting process of hand wheel comparatively inconvenient.

SUMMERY OF THE UTILITY MODEL

To the technical problem that has now, an object of the utility model is to provide a manual butterfly valve has the effect that improves the dismouting hand wheel convenience.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a manual butterfly valve, includes the butterfly valve body, sets up in the butterfly valve body and is used for controlling valve rod and the hand wheel that the butterfly valve body opened and close, the valve rod is kept away from one of butterfly valve body and is served and seted up the inserting groove, the fixed connecting rod that is provided with of hand wheel the central axis department, the connecting rod is pegged graft in the inserting groove, the connecting rod is pegged graft and is seted up spacing hole on the lateral wall of inserting groove, the valve rod is close to one side lateral wall of hand wheel and is slided and worn to be equipped with the spacer pin, the one end of spacer pin stretches into the inserting groove and corresponding with spacing hole, be provided with.

According to the arrangement, the connecting rod of the hand wheel is inserted into the insertion groove of the valve rod, and then the limiting pin is inserted into the limiting hole of the connecting rod, so that the connecting rod is positioned in the insertion groove of the valve rod, the hand wheel is installed on the valve rod, and the valve rod can be driven to rotate through the rotation of the hand wheel, and the installation of the hand wheel is realized; when dismantling, through the ejecting spacing hole of control ejector pin subassembly with the spacer pin, can take the connecting rod out outside the inserting groove to pull down the hand wheel, it is very convenient, need not adopt the instrument can realize the hand wheel and dismantle, and overall structure is more simple, makes things convenient for the dismouting, realizes improving the effect of the convenience of dismouting hand wheel.

Further setting: the ejector rod component comprises an ejector rod which is slidably arranged in the axial direction of the connecting rod in a penetrating mode and a shifting block which is fixedly connected with the end, penetrates out of the center of the hand wheel, of the ejector rod, a sliding channel is formed in the side wall of the connecting rod in the axial direction, the sliding channel is connected with a limiting hole, one end, inserted in the limiting hole, of the limiting pin is located in the sliding channel, an inclined surface is arranged at one end, deep into the sliding channel, of the limiting pin, a wedge-shaped surface is arranged at one end, far away from the shifting block, of the ejector rod, the wedge-shaped surface and the inclined surface are matched and slidably arranged, when the shifting block is pressed, the ejector rod slides towards the direction close to the insertion groove, and the limiting pin slides.

According to the arrangement, the shifting block is pressed to push the ejector rod to slide towards the direction close to the insertion groove, so that the limiting pin slides towards the direction far away from the limiting hole through the matching of the wedge-shaped surface and the inclined surface until the limiting pin is completely separated from the limiting hole, and then the hand wheel and the connecting rod are pulled out of the insertion groove to be detached, so that the hand wheel is very convenient and fast; when the hand wheel is installed, the connecting rod part is inserted into the insertion groove, the limiting pin is lifted by pressing the toggle block, the toggle block is lifted after the connecting rod is inserted into the groove bottom, the limiting pin is inserted into the limiting hole, the hand wheel is fixed on the valve rod in an installing mode, and the hand wheel is convenient and fast to install and detach, and the effect of improving the convenience of the hand wheel is achieved.

Further setting: the sliding channel is close to and has seted up the holding chamber on the one end lateral wall of stirring the piece, the cover is equipped with reset spring on the ejector pin, just the fixed locating plate that is provided with in position department that the ejector pin is located the holding intracavity, reset spring's both ends are contradicted respectively on the chamber wall in locating plate and holding chamber, when reset spring does not receive the force, the spacer pin stretches into the one end in the sliding channel and ejector pin cooperation location.

So set up, when pressing the stirring piece, produce elasticity at holding intracavity locating plate extrusion reset spring to when the ejector pin slides to target in place and loosens the stirring piece, reset spring's elasticity can drive the stirring piece and pop out the reset, so that carry out the dismouting once more, improve the convenience of dismouting.

Further setting: the limiting pin is sleeved with a positioning spring, a placing cavity used for containing the positioning spring is formed in the valve rod, a fixing plate is fixedly arranged at the position, located in the placing cavity, of the limiting pin, two ends of the positioning spring respectively abut against the fixing plate and the cavity wall of the placing cavity, and when the positioning spring is not stressed, the limiting pin is inserted into the limiting hole.

So set up, when the spacer pin was outside ejecting spacing hole, the fixed plate was placing intracavity extrusion positioning spring and is producing elasticity for when the spacer pin breaks away from the power that receives the top, positioning spring's elasticity drives the spacer pin and resets and pegs graft in spacing downthehole, thereby the location behind the connecting rod inserts the inserting groove of being convenient for, the convenience of improvement hand wheel dismouting.

Further setting: the poking block is arranged at the center of one end, far away from the valve rod, of the hand wheel, and the surface of the poking block is arc-shaped.

According to the arrangement, the shifting block is pressed at the center of the hand wheel, so that the spacing pin and the spacing hole can be separated, the hand wheel can be taken down, the operation is very convenient, the force can be applied when the shifting block is pressed by a worker conveniently due to the design of the arc surface, and the operation convenience is improved.

Further setting: and the arc surface of the poking block is provided with anti-skid grains.

So set up, through the anti-skidding line that sets up, can improve the frictional force on stirring piece surface, the staff of being convenient for carries out the application of force to stirring the piece, improves the convenience of operation.

Further setting: one end of the limiting pin, which is far away from the insertion groove, penetrates out of the valve rod and forms an operation end.

So set up, can pull up or insert the spacer pin through control operation end, the cooperation ejector pin subassembly of being convenient for carries out the dismouting of hand wheel, and convenient and fast improves the convenience of installation.

Further setting: the inserting groove is a square groove, and one end of the connecting rod inserted in the inserting groove is correspondingly arranged.

So set up, behind the inserting groove was inserted to the one end of connecting rod, can avoid connecting rod and inserting groove to form circumferential direction, the hand wheel of being convenient for drives the valve rod and rotates, and the in-process of pegging graft, and the connecting rod can not take place to rotate, and the counterpoint of spacing hole and spacer pin of being convenient for improves the convenience of installation.

Further setting: the connecting rod includes dead lever of fixed connection on the hand wheel and keeps away from the grafting pole that hand wheel one end is connected with the dead lever, the grafting pole corresponds with square groove and insert connect in square inslot, the cross sectional shape size of dead lever and valve rod sets up to unanimity.

So set up, through pegging graft the inserted bar in square inslot for the dead lever is contradicted with the terminal surface of valve rod, thereby makes the surface level of junction, improves the aesthetic property.

By adopting the technical scheme, the utility model discloses relative prior art compares, has following advantage:

1. the hand wheel can be positioned and connected with the valve rod through the connecting rod by matching the limiting pin with the limiting hole, the hand wheel can be assembled and disassembled without tools, and the effect of improving the convenience of assembling and disassembling the hand wheel is achieved;

2. the limit pin can be pushed to be separated from the limit hole by controlling the ejector rod assembly without using other tools, so that the convenience of assembling and disassembling the hand wheel is improved;

3. the reset spring and the positioning spring are arranged, so that the reset of the ejector rod and the limiting pin can be facilitated, and the convenience of assembling and disassembling the hand wheel is improved;

4. the setting of stirring the piece through with the ejector pin is on the hand wheel, and the staff directly presses down on the hand wheel and stirs the restriction that the piece can untie the spacer pin, and is very convenient, improves the convenience of hand wheel dismouting.

Drawings

FIG. 1 is a schematic structural view of a manual butterfly valve;

FIG. 2 is a schematic view of a cross-section of a portion of the valve stem of a manual butterfly valve and a handwheel;

fig. 3 is an enlarged schematic view at a in fig. 2.

In the figure: 1. a butterfly valve body; 2. a valve stem; 21. inserting grooves; 22. a placement chamber; 3. a hand wheel; 31. a connecting rod; 311. a limiting hole; 312. a slide channel; 313. an accommodating cavity; 314. fixing the rod; 315. a plug rod; 4. a spacing pin; 41. an inclined surface; 42. a fixing plate; 43. an operation end; 5. a push rod assembly; 51. a top rod; 511. a wedge-shaped surface; 512. positioning a plate; 52. a shifting block; 6. a return spring; 7. and positioning the spring.

Detailed Description

The manual butterfly valve is further described with reference to fig. 1 to 3.

The utility model provides a manual butterfly valve, as shown in figure 1, includes butterfly valve body 1, sets up in butterfly valve body 1 and is used for controlling valve rod 2 and the hand wheel 3 that butterfly valve body 1 opened and close, through rotating hand wheel 3, can drive the rotation of valve rod 2 to control butterfly valve body 1 and open and close.

As shown in fig. 1 and 2, an insertion groove 21 is formed in one end, away from the butterfly valve body 1, of the valve rod 2, a connecting rod 31 is fixedly arranged at the central axis of the hand wheel 3, and the connecting rod 31 is inserted into the insertion groove 21. Wherein, inserting groove 21 sets up to square groove, and the one end of connecting rod 31 pegging graft in inserting groove 21 corresponds the setting to take place idle running when avoiding connecting rod 31 to drive valve rod 2 and rotate, improve control valve rod 2 pivoted stability. Specifically, the connecting rod 31 includes a fixing rod 314 fixedly connected to the handwheel 3 and an insertion rod 315 connected to one end of the handwheel 3 far away from the fixing rod 314, wherein the insertion rod 315 corresponds to the square groove and is inserted into the square groove, the cross-sectional shape of the fixing rod 314 and the cross-sectional shape of the valve rod 2 are set to be consistent, and after the insertion rod 315 is inserted into the insertion groove 21, the fixing rod 314 and the outer peripheral wall of the valve rod 2 are located on the same horizontal plane, so that the appearance aesthetic feeling is improved.

As shown in fig. 2 and 3, in order to position the connecting rod 31 in the insertion groove 21, a limiting hole 311 is formed in a side wall of the connecting rod 31 inserted in the insertion groove 21, a limiting pin 4 is slidably inserted through a side wall of the valve rod 2 close to the hand wheel 3, one end of the limiting pin 4 extends into the insertion groove 21 and corresponds to the limiting hole 311, and the limiting pin 4 is inserted into the limiting hole 311 to form a limiting position, so that the connecting rod 31 is positioned in the insertion groove 21. Wherein, the one end of spacer pin 4 far away from inserting groove 21 is worn out outside valve rod 2 and is formed operation end 43, is convenient for control spacer pin 4 and carries out the grafting location.

As shown in fig. 2 and 3, further, a positioning spring 7 is sleeved outside the limit pin 4, a placing cavity 22 for accommodating the positioning spring 7 is formed in the valve rod 2 through which the limit pin 4 passes, a fixing plate 42 is fixedly arranged at a position of the limit pin 4 in the placing cavity 22, two ends of the positioning spring 7 respectively abut against the fixing plate 42 and a cavity wall of the placing cavity 22, and when the positioning spring 7 is not stressed, the limit pin 4 penetrates into the insertion groove 21 and is inserted into the limit hole 311; the limiting pin 4 is lifted at the control operation end 43, so that when the limiting pin 4 is separated from the limiting hole 311, the positioning spring 7 generates elastic force, and therefore when the hand wheel 3 is installed, the positioning spring 7 can drive the limiting pin 4 to be automatically inserted into the limiting hole 311, and operation convenience is improved.

As shown in fig. 2 and 3, further, the connecting rod 31 is provided with a top rod assembly 5 for ejecting the limit pin 4 out of the limit hole 311, so as to eject the limit pin 4, thereby unlocking the limit effect, facilitating the extraction of the connecting rod 31, and facilitating the removal of the hand wheel 3. Specifically, the ejector rod assembly 5 comprises an ejector rod 51 slidably penetrating through the connecting rod 31 in the axial direction and a toggle block 52 fixedly connected with one end of the ejector rod 51 penetrating out of the center of the hand wheel 3, wherein a sliding channel 312 is formed in the side wall of the connecting rod 31 in the axial direction, the sliding channel 312 is connected with a limiting hole 311, and one end of the limiting pin 4 inserted into the limiting hole 311 is located in the sliding channel 312; an inclined surface 41 is arranged at one end of the limiting pin 4, which penetrates into the sliding channel 312, a wedge surface 511 is arranged at one end of the ejector rod 51, which is far away from the shifting block 52, and the wedge surface 511 and the inclined surface 41 are arranged in a sliding fit manner, so that when the shifting block 52 is pressed, the ejector rod 51 slides towards the direction close to the insertion groove 21, and pushes the limiting pin 4 to slide towards the direction far away from the limiting hole 311 and slide away from the limiting hole 311 through the fit of the inclined surface 41 and the wedge surface 511, so that the limiting is unlocked, and the connecting rod 31 and the hand wheel 3 are taken down conveniently.

As shown in fig. 2, in order to control the stem rod assembly 5, the toggle block 52 is disposed at the center of one end of the hand wheel 3 away from the valve rod 2, and the pressing surface of the toggle block 52 is arc-shaped, so as to be suitable for being pressed by fingers, which is very convenient and fast; meanwhile, the arc surface of the poking block 52 is provided with anti-skid lines, so that the friction force during pressing is improved, and the convenience of operation is improved.

As shown in fig. 2 and fig. 3, further, an accommodating cavity 313 is formed in a side wall of one end of the sliding channel 312 close to the toggle block 52, a return spring 6 is sleeved on the ejector rod 51, a positioning plate 512 is fixedly disposed at a position of the ejector rod 51 in the accommodating cavity 313, the return spring 6 and the positioning plate 512 are both disposed in the accommodating cavity 313, two ends of the return spring 6 respectively abut against the walls of the positioning plate 512 and the accommodating cavity 313, when the return spring 6 is not stressed, the toggle block 52 is in a state to be pressed, and one end of the limit pin 4 extending into the sliding channel 312 is matched with the ejector rod 51 for positioning; when the pushing block 52 is pushed to enable the ejector rod 51 to drive the limit pin 4 to be separated from the limit hole 311, the reset spring 6 is extruded to generate elastic force, so that when the hand wheel 3 is taken down, the pushing block 52 and the ejector rod 51 are automatically driven to reset, the next time the hand wheel is installed and used, and the convenience of disassembly and assembly is improved.

The working principle is as follows: during installation, the inserting rod 315 is inserted into the inserting groove 21, and the toggle block 52 is pressed at the same time, so that the top rod 51 pushes the limit pin 4 to be separated from the inserting groove 21 temporarily, thereby facilitating the insertion of the inserting rod 315. After the insertion rod 315 is inserted in place, the shifting block 52 is loosened, so that the return spring 6 drives the ejector rod 51 to reset, the limit pin 4 is separated from the limit, the limit pin 4 is driven by the positioning spring 7 to be inserted into the limit hole 311 to form the positioning, and the installation of the hand wheel 3 is completed. When the hand wheel 3 is disassembled, only the toggle block 52 needs to be pressed, so that the ejector rod 51 pushes the limit pin 4 to be separated from the limit hole 311, the connecting rod 31 can be pulled out, the hand wheel 3 is taken down, the operation is very convenient, an instrument is not needed, the overall structure is simple, and the effect of improving the convenience of disassembling and assembling the hand wheel 3 is realized.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (9)

1. The utility model provides a manual butterfly valve, includes butterfly valve body (1), sets up in butterfly valve body (1) and is used for controlling valve rod (2) and hand wheel (3) that butterfly valve body (1) opened and close, its characterized in that: the butterfly valve is characterized in that an end, far away from the butterfly valve body (1), of the valve rod (2) is provided with an insertion groove (21), a connecting rod (31) is fixedly arranged at the central axis of the hand wheel (3), the connecting rod (31) is inserted into the insertion groove (21), a limiting hole (311) is formed in the side wall, inserted into the insertion groove (21), of the connecting rod (31), a limiting pin (4) penetrates through the side wall, close to the hand wheel (3), of the valve rod (2) in a sliding mode, one end of the limiting pin (4) stretches into the insertion groove (21) and corresponds to the limiting hole (311), and an ejector rod assembly (5) used for ejecting the limiting pin (4) out of the limiting hole (311) is arranged on the connecting rod (31).

2. A manual butterfly valve according to claim 1, characterized in that: the ejector rod component (5) comprises an ejector rod (51) which penetrates through the connecting rod (31) in the axial direction in a sliding mode and a shifting block (52) fixedly connected with one end, penetrating out of the center of the hand wheel (3), of the ejector rod (51), a sliding channel (312) is formed in the side wall of the connecting rod (31) along the axial direction, the sliding channel (312) is connected with a limiting hole (311), one end, inserted into the limiting hole (311), of a limiting pin (4) is located in the sliding channel (312), an inclined surface (41) is arranged at one end, penetrating into the sliding channel (312), of the limiting pin (4), one end, far away from the shifting block (52), of the ejector rod (51) is provided with a wedge-shaped surface (511), the wedge-shaped surface (511) and the inclined surface (41) are matched and arranged in a sliding mode, and when the shifting block (52) is pressed, the ejector rod (51) slides towards the direction close to the, and the limit pin (4) slides towards the direction far away from the limit hole (311) and slides away from the limit hole (311).

3. A manual butterfly valve according to claim 2, characterized in that: the sliding channel (312) is close to and has seted up holding chamber (313) on the one end lateral wall of dialling piece (52), the cover is equipped with reset spring (6) on ejector pin (51), just ejector pin (51) are located the fixed locating plate (512) that is provided with of position department in holding chamber (313), the both ends of reset spring (6) are contradicted respectively on the chamber wall in locating plate (512) and holding chamber (313), when reset spring (6) do not receive the force, the one end and ejector pin (51) cooperation location in sliding channel (312) are stretched into in spacer pin (4).

4. A manual butterfly valve according to claim 3, characterized in that: limiting pin (4) overcoat is equipped with positioning spring (7), offer on valve rod (2) and be used for holding placing chamber (22) of positioning spring (7), limiting pin (4) are located the fixed plate (42) that is provided with in position department of placing chamber (22), the both ends of positioning spring (7) are contradicted respectively in fixed plate (42) and the chamber wall of placing chamber (22), when positioning spring (7) do not receive the force, limiting pin (4) are pegged graft in spacing hole (311).

5. A manual butterfly valve according to claim 2, characterized in that: the poking block (52) is arranged at the center of one end, away from the valve rod (2), of the hand wheel (3), and the surface of the poking block (52) is arc-shaped.

6. A manual butterfly valve according to claim 5, characterized in that: the arc surface of the poking block (52) is provided with anti-skid lines.

7. A manual butterfly valve according to claim 1, characterized in that: one end of the limiting pin (4) far away from the insertion groove (21) penetrates out of the valve rod (2) and forms an operation end (43).

8. A manual butterfly valve according to claim 1, characterized in that: the inserting groove (21) is a square groove, and one end of the connecting rod (31) inserted in the inserting groove (21) is correspondingly arranged.

9. A manual butterfly valve according to claim 8, characterized in that: the connecting rod (31) comprises a fixing rod (314) fixedly connected to the hand wheel (3) and an insertion rod (315) connected with one end, far away from the hand wheel (3), of the fixing rod (314), the insertion rod (315) corresponds to the square groove and is inserted into the square groove, and the cross section shapes and sizes of the fixing rod (314) and the valve rod (2) are set to be the same.

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