CN210164976U

CN210164976U - Worm wheel butterfly valve capable of keeping closed state

Info

Publication number: CN210164976U
Application number: CN201920675005.2U
Authority: CN
Inventors: 吴增富; 周肖文; 伍玉霞
Original assignee: Sichuan Antaixin Construction Group Co ltd
Current assignee: Sichuan Antaixin Construction Group Co ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-03-20
Anticipated expiration: 2029-05-10

Abstract

The utility model relates to a can keep enclosed state's worm wheel butterfly valve belongs to the butterfly valve field, including the tube coupling circle, be provided with the butterfly plate in the tube coupling circle, be provided with on the tube coupling circle and be used for making butterfly plate pivoted worm gear, last hand wheel and the regulation pole of being provided with of worm gear, the last position that just is located the regulation pole of worm gear is provided with the sleeve, it is located the sleeve to adjust the pole, the fixed orifices has been seted up on the sleeve, the fixed orifices runs through telescopic lateral wall setting along the telescopic length direction of perpendicular to, the mating holes has been seted up to the position that just is located the fixed orifices on the regulation pole, the mating holes extends the setting along the length direction of perpendicular to regulation pole, fixed orifices and mating holes intercommunication set up, be provided with in the fixed orifices and insert to the downthehole dead lever of mating.

Description

Worm wheel butterfly valve capable of keeping closed state

Technical Field

The utility model belongs to the technical field of the technique of valve and specifically relates to a can keep enclosed state's worm wheel butterfly valve is related to.

Background

The worm-wheel butterfly valve is a valve applied to a pipeline, is arranged in the diameter direction of the pipeline, is simple in structure, small in size and light in weight, only comprises a few parts, can be quickly opened and closed only by rotating 90 degrees, is simple to operate, and has good fluid control characteristics.

The current chinese patent with the grant publication number of CN202768881U discloses a two eccentric formula worm wheel butterfly valves, the butterfly valve includes a tube coupling circle and a butterfly plate, the upside of tube coupling circle is provided with a connecting cylinder, the downside of tube coupling circle is provided with connecting hole once, the butterfly plate includes a vertical regulation pole, vertical regulation pole and last connecting cylinder reach down the connecting hole rotate and be connected, still include a worm wheel install bin, the upper end of going up the connecting cylinder is provided with a flange, the worm wheel install bin is connected with flange, the upper end of vertical regulation pole is provided with a gear, still include a hand wheel, the hand wheel includes a leveling lever, leveling lever's tip is provided with a worm wheel, worm wheel and worm meshing are connected.

The above prior art solutions have the following drawbacks: the staff is through rotating the hand wheel, makes the hand wheel drive the worm and rotates for the worm drives the worm wheel and rotates, thereby makes vertical regulation pole drive the butterfly plate and rotates, makes the butterfly plate seal the pipeline connecting ring alright with the prevention liquid passes through the pipeline connecting ring, but with the pipeline connecting ring seal the back, if the staff carelessly mistake touches the hand wheel, probably leads to the butterfly plate to take place to rotate, makes the pipeline connecting ring not totally closed, thereby does not play the effect that prevents the liquid and pass through.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can prevent hand wheel pivoted worm wheel butterfly valve after making the butterfly plate seal the pipeline connecting ring.

The utility model aims at realizing through the following technical scheme:

the utility model provides a can keep enclosed state's worm wheel butterfly valve, includes the pipe connection circle, be provided with the butterfly plate in the pipe connection circle, the pipe connection circles and is provided with and is used for making butterfly plate pivoted worm gear, last hand wheel and the regulation pole of being provided with of worm gear, the last position that just is located the regulation pole of worm gear is provided with the sleeve, it is located the sleeve to adjust the pole, the fixed orifices has been seted up on the sleeve, the fixed orifices runs through telescopic lateral wall setting along the telescopic length direction of perpendicular to, the mating holes has been seted up to the position that just is located the fixed orifices on the regulation pole, the mating holes extends the setting along the length direction of perpendicular to regulation pole, fixed orifices and mating holes intercommunication set up, be provided with the dead lever that inserts to the.

Through adopting above-mentioned technical scheme, when the worm wheel butterfly valve is closed to needs, the staff passes through the hand wheel and rotates the regulation pole, it then can drive the butterfly plate through worm gear and rotate to adjust the pole, and make the butterfly plate seal the pipe connection circle, thereby prevent rivers from passing through the pipe connection circle, after closing the worm wheel butterfly valve, insert the dead lever in the mating holes through the fixed orifices, because the sleeve is fixed on worm gear, therefore the dead lever alright the position of fixed regulation pole, prevent to adjust the pole and rotate, even the staff mistake is touched the hand wheel and also can not lead to the rotation of adjusting the pole, thereby make the position of butterfly plate can not change, make the worm wheel butterfly valve can keep the encapsulated situation.

The utility model discloses further set up to: and a positioning device is arranged in the pipeline connecting ring and is used for enabling the fixing hole and the matching hole to be communicated when the worm wheel butterfly valve is in a closed state.

Through adopting above-mentioned technical scheme, positioner's setting makes the butterfly plate when closing the pipe connection circle, and fixed orifices and mating holes are in the position that is linked together, and the staff alright this moment with insert the dead lever in the mating holes, required time when having reduced the staff and having aimed at fixed orifices and mating holes has improved the convenience that the turbine butterfly valve used.

The utility model discloses further set up to: the positioning device comprises positioning blocks arranged in the pipeline connecting ring, the positioning blocks are located on the inner wall of the pipeline connecting ring and located on two sides of the butterfly plate, positioning grooves for the positioning blocks to move in are formed in the two sides of the butterfly plate, and the positioning grooves are located on two faces of the butterfly plate respectively.

Through adopting above-mentioned technical scheme, when the butterfly plate rotated to the position with pipeline connecting ring confined towards a direction, two locating pieces in the pipeline connecting ring can get into two constant head tanks on the butterfly plate respectively in, the locating piece just can prevent the butterfly plate to continue to rotate afterwards, and fixed orifices and mating holes just align this moment, so just realized the intercommunication of fixed orifices and mating holes.

The utility model discloses further set up to: the fixing rod is provided with connecting threads along the length direction of the fixing rod, and the inner wall of the matching hole is provided with matching threads matched with the connecting threads along the length direction of the matching hole.

Through adopting above-mentioned technical scheme, when fixing the regulation pole, because dead lever and mating holes inner wall are provided with connecting thread and cooperation screw thread respectively, so the staff can rotate the dead lever and make the dead lever get into the mating holes, make the dead lever can with mating holes threaded connection to make the dead lever fixed to the mating holes in, make the dead lever can stop better that the regulation pole rotates.

The utility model discloses further set up to: the end part of the fixed rod, which is far away from the adjusting rod, is provided with a rocking wheel.

Through adopting above-mentioned technical scheme, the setting of rocking the wheel can make things convenient for the staff to twist the dead lever into or screw out the mating holes.

The utility model discloses further set up to: the telescopic adjusting rod is characterized in that a first indicating line is arranged on the sleeve and in the position of the fixing hole along the length direction of the sleeve, a second indicating line is arranged on the adjusting rod and in the position of the matching hole along the length direction of the adjusting rod, and the second indicating line extends to the outside of the sleeve.

Through adopting above-mentioned technical scheme, when the position of alignment fixed orifices and mating holes, the staff can also be through running through the position of first instruction line and second instruction line, when first instruction line and second instruction line are in same straight line, just explains that the fixed orifices is linked together with the mating holes, and the setting up of first instruction line and second instruction line makes the staff can align fixed orifices and mating holes more conveniently, has further improved the convenience that the worm wheel butterfly valve used.

The utility model discloses further set up to: the adjusting rod is provided with a plurality of balls along the length direction of the adjusting rod, and the balls are abutted to the inner wall of the sleeve.

Through adopting above-mentioned technical scheme, the friction between regulation pole and the sleeve inner wall can be reduced in setting up of ball for adjust the pole and can rotate in the sleeve better.

To sum up, the utility model discloses a beneficial technological effect does:

1. after the butterfly plate seals the pipeline connecting ring, the fixed rod is inserted into the matching hole in the adjusting rod through the fixed hole in the sleeve, so that the fixed rod can prevent the adjusting rod from rotating, the adjusting rod cannot rotate due to mistaken collision of workers, the butterfly plate can keep a closed state, and the worm-wheel butterfly valve can better prevent liquid from passing through;

2. through set up the locating piece in the pipe connection circle to set up the constant head tank of relevant position on the butterfly plate, make the locating piece get into behind the constant head tank alright with preventing the butterfly plate to continue to rotate, make the fixed orifices can be linked together with the cooperation hole system this moment, make the staff more convenient when the position of fixed adjustment pole.

Drawings

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

FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1;

FIG. 3 is a partial schematic structural view of the embodiment of the present invention after the sleeve is hidden;

fig. 4 is a schematic view of a partial cross-sectional structure of a fixing rod according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a part of the butterfly plate according to the embodiment of the present invention.

In the figure, 1, a pipeline connecting ring; 11. a butterfly plate; 111. positioning a groove; 12. a worm gear; 13. positioning blocks; 2. adjusting a rod; 21. a hand wheel; 22. a mating hole; 221. matching threads; 23. a second indication line; 24. a ball bearing; 3. a sleeve; 31. a fixing hole; 32. fixing the rod; 321. connecting threads; 322. shaking the wheel; 33. a first indicator line.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a can keep enclosed state's worm wheel butterfly valve, including tube coupling circle 1, 1 internal rotations of tube coupling circle are connected with butterfly plate 11, are provided with worm gear 12 on the tube coupling circle 1, and worm gear 12 can drive butterfly plate 11 and rotate, is provided with on the worm gear 12 and adjusts pole 2 and hand wheel 21, and the staff passes through hand wheel 21 and rotates regulation pole 2, alright in order to make butterfly plate 11 rotate.

Referring to fig. 2 and 4, a sleeve 3 is arranged on the worm gear 12 along the length direction of the adjusting rod 2, the adjusting rod 2 is located in the sleeve 3, a fixing hole 31 is formed in a position, far away from the worm gear 12, on the sleeve 3, the fixing hole 31 penetrates through the side wall of the sleeve 3, a matching hole 22 is formed in the position, far away from the fixing hole 31, of the adjusting rod 2, the matching hole 22 extends towards the position of the axis of the adjusting rod 2, and when the butterfly plate 11 is in a closed state, the matching hole 22 and the fixing hole 31 are communicated.

Referring to fig. 3 and 4, a fixing rod 32 is provided in the fixing hole 31 and the fitting hole 22, a connecting screw 321 is provided on the fixing rod 32 along a length direction of the fixing rod 32, a fitting screw 221 is provided on an inner wall of the fitting hole 22 along a length direction of the fitting hole 22, a rocking wheel 322 is provided at one end of the fixing rod 32 in order to facilitate screwing or unscrewing of the fixing rod 32, and a plurality of balls 24 are provided on the adjustment lever 2 along a length direction of the adjustment lever 2 in order to reduce friction between the adjustment lever 2 and the sleeve 3.

After rotating butterfly plate 11 and enclosing pipeline connecting ring 1, mating holes 22 and fixed orifices 31 can be in the state of intercommunication, the staff inserts dead lever 32 in fixed orifices 31 this moment, rotate dead lever 32 through rocking wheel 322 simultaneously, because be provided with connecting thread 321 and cooperation screw thread 221 on the inner wall of dead lever 32 and mating holes 22 respectively, so dead lever 32 just can be twisted into mating holes 22 and fixed, dead lever 32 alright in order to prevent adjusting pole 2 and rotate this moment, thereby prevent butterfly plate 11 and rotate, make the worm wheel butterfly valve can keep confined state.

Referring to fig. 1 and 5, positioning blocks 13 are arranged on two sides of a butterfly plate 11 on the inner wall of a pipeline connecting ring 1, positioning grooves 111 are formed in two sides of the butterfly plate 11 on the butterfly plate 11, the two positioning grooves 111 are respectively located on two faces of the butterfly plate 11, the positioning blocks 13 and the positioning grooves 111 are matched and arranged, the butterfly plate 11 is rotated towards one direction, finally, the two positioning blocks 13 can enter the two positioning grooves 111 of the butterfly plate 11 respectively, the positioning blocks 13 can prevent the positioning grooves 111 from moving, the butterfly plate 11 is located at a position where the pipeline connecting ring 1 is sealed at the moment, meanwhile, the fixing holes 31 and the matching holes 22 can be located at communicated positions, a worker does not need to align the positions of the fixing holes 31 and the matching holes 22 again, and the fixing of the adjusting rod 2 is.

Referring to fig. 2 and 3, in order to further facilitate the fixing of the adjusting lever 2 by a worker, a first indication line 33 is disposed at a position of the fixing hole 31 on an outer wall of the sleeve 3, the first indication line 33 is disposed along a length direction of the sleeve 3, a second indication line 23 is disposed at a position of the fitting hole 22 on a side wall of the adjusting lever 2, the second indication line 23 extends to the outside of the sleeve 3 along the length direction of the adjusting lever 2, and the worker can align the fixing hole 31 and the fitting hole 22 by the positions of the first indication line 33 and the second indication line 23 when rotating the adjusting lever 2, which is more convenient.

The implementation principle of the embodiment is as follows: the staff rotates the adjusting lever 2 through the handwheel 21, the adjusting lever 2 can make the worm gear device 12 drive the butterfly plate 11 to rotate in the pipeline connecting ring 1, when the butterfly plate 11 rotates to the plate surface to seal the pipeline connecting ring 1, the positioning block 13 can enter the corresponding positioning groove 111 on the butterfly plate 11, the positioning block 13 can prevent the butterfly plate 11 from continuing to rotate at this time, meanwhile, the staff aligns the fixing hole 31 and the matching hole 22 through the positions of the first indication line 33 and the second indication line 23, so that the fixing hole 31 is communicated with the matching hole 22, then the staff screws the fixing lever 32 into the matching hole 22 through the rocking wheel 322, the fixing lever 32 can be fixed into the matching hole 22 under the action of the connecting thread 321 and the matching thread 221, at this time, the fixing lever 32 can prevent the adjusting lever 2 from rotating, even if the staff touches the handwheel 21 by mistake, the adjusting lever 2 can not rotate, so that the butterfly plate 11 can not rotate along with the rotation of, the worm wheel butterfly valve can be in a closed state, and the function of preventing liquid from passing through is achieved.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a can keep enclosed state's worm wheel butterfly valve, includes pipe connection circle (1), be provided with butterfly plate (11) in pipe connection circle (1), be provided with on pipe connection circle (1) and be used for making butterfly plate (11) pivoted worm gear (12), be provided with hand wheel (21) and adjust pole (2) on worm gear (12), its characterized in that: the utility model discloses a worm gear device, including worm gear (12) and adjusting pole (2), adjusting pole (2) is provided with sleeve (3), adjusting pole (2) is located sleeve (3), fixed orifices (31) have been seted up on sleeve (3), the lateral wall setting that sleeve (3) were run through along the length direction of perpendicular to sleeve (3) in fixed orifices (31), mating holes (22) have been seted up in the position that just is located fixed orifices (31) on adjusting pole (2), mating holes (22) extend the setting along the length direction of perpendicular to adjusting pole (2), fixed orifices (31) and mating holes (22) intercommunication set up, be provided with dead lever (32) that insert to mating holes (22) in fixed orifices (31).

2. A worm-wheel butterfly valve that can maintain a closed state, according to claim 1, wherein: the pipeline connecting ring (1) is internally provided with a positioning device, and the positioning device is used for enabling the fixing hole (31) and the matching hole (22) to be in a communicated position when the worm wheel butterfly valve is in a closed state.

3. A worm-wheel butterfly valve that can maintain a closed state, according to claim 2, wherein: the positioning device comprises positioning blocks (13) arranged in the pipeline connecting ring (1), the positioning blocks (13) are located on the inner wall of the pipeline connecting ring (1) and located on two sides of the butterfly plate (11), positioning grooves (111) for the positioning blocks (13) to move in are formed in the two sides of the butterfly plate (11) on the butterfly plate (11), and the positioning grooves (111) are located on two faces of the butterfly plate (11) respectively.

4. A worm-wheel butterfly valve that can maintain a closed state, according to claim 1, wherein: the fixing rod (32) is provided with connecting threads (321) along the length direction of the fixing rod (32), and the inner wall of the matching hole (22) is provided with matching threads (221) matched with the connecting threads (321) along the length direction of the matching hole (22).

5. A worm-wheel butterfly valve that can maintain a closed state, according to claim 1, wherein: the end part of the fixed rod (32) far away from the adjusting rod (2) is provided with a rocking wheel (322).

6. A worm-wheel butterfly valve that can maintain a closed state, according to claim 1, wherein: the utility model discloses a sleeve (3) of adjusting the length direction of adjusting the pole (2), the position that just is located fixed orifices (31) on sleeve (3) is provided with first instruction line (33) along the length direction of sleeve (3), adjust on pole (2) and be located with mating holes (22) the position be provided with second instruction line (23) along the length direction of adjusting pole (2), second instruction line (23) extend to sleeve (3) and set up outward.

7. A worm-wheel butterfly valve that can maintain a closed state, according to claim 1, wherein: the adjusting rod (2) is provided with a plurality of balls (24) along the length direction of the adjusting rod (2), and the balls (24) are abutted to the inner wall of the sleeve (3).