CN211901644U

CN211901644U - Quick-dismantling soft sealing rotary valve

Info

Publication number: CN211901644U
Application number: CN201922475171.0U
Authority: CN
Inventors: 吴栋
Original assignee: Changzhou Yahong Environmental Protection Technology Co ltd
Current assignee: Changzhou Yahong Environmental Protection Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-10
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a rotary valve technical field especially relates to a quick detach formula soft seal rotary valve, case and valve rod fixed connection, the upper end cover fixed connection of valve rod and valve body, consequently through the upper end cover of dismantling the valve body, can be with the case along with the upper end cover whole take out, easy dismounting is swift, the maintenance of being convenient for.

Description

Quick-dismantling soft sealing rotary valve

Technical Field

The utility model relates to a rotary valve technical field especially relates to a quick detach formula soft sealing rotary valve.

Background

The rotary valve is a fast-switching straight-through valve, is a control component in a pipeline fluid and powder conveying system, is used for changing the section of a passage and the flowing direction of a medium, and has the functions of diversion, stopping, regulation, backflow prevention, throttling, shunting or overflow pressure relief and the like. Soft sealing elements are arranged between the existing valve body and the valve core, and the soft sealing elements are easily worn in the using process, so that the sealing elements need to be replaced and maintained.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the technical problem, the utility model provides a quick detach formula soft sealing rotary valve.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a quick detach formula soft seal rotary valve, includes valve body, case and rotary driving mechanism, the case sets up in the valve body, rotary driving mechanism drives the case and is in the opening of valve body is rotated between closing its characterized in that: a soft sealing element is arranged between the valve core and the valve body, a groove is arranged on the valve core, the soft sealing element is arranged in the groove, an air hole is also arranged at the bottom in the groove, the air hole is externally connected with an air source through a pipeline,

a plenum chamber is formed between the soft sealing element and the bottom in the groove, the air hole is communicated with the plenum chamber, and the soft sealing element is abutted against the valve body when the plenum chamber is pressurized; when the inflation chamber is decompressed, the soft sealing element is far away from the inner wall of the valve body,

the valve body is provided with a first shaft hole in the vertical direction, an upper end port of the first shaft hole is provided with an upper end cover, a lower end of the first shaft hole is provided with a lower end cover, a support is fixedly arranged on the upper end cover, the rotary driving mechanism is fixed on the support and is connected with the valve core through a valve rod in a transmission mode, the valve rod penetrates through the support and extends into the first shaft hole, the valve rod is fixedly connected with the upper end cover through a bearing, the valve rod and the first shaft hole are coaxially arranged, an upper lug extends outwards from the side edge of the upper end cover, a lower lug is fixedly arranged on the outer wall of the valve body, through holes are formed in the upper lug and the lower lug, the through holes in the upper lug and the through holes in the lower lug are coaxially arranged, a bolt penetrates through the through holes in the upper lug and the through holes in.

In order to facilitate the removal of the valve core and ensure that the valve core is not subjected to position deviation and generates friction when being removed, a first upper lug and a second upper lug extend towards two sides of the upper end cover respectively, the first upper lug and the second upper lug are symmetrically arranged at an angle of 180 degrees, a first lower lug and a second lower lug are fixedly arranged on two sides of the outer wall of the valve body respectively, the first lower lug and the second lower lug are symmetrically arranged at an angle of 180 degrees, the first upper lug and the first lower lug are positioned at the same side, through holes on the first upper lug and the first lower lug are coaxially arranged, the second upper lug and the second lower lug are positioned at the same side, through holes on the second upper lug and the second lower lug are coaxially arranged, a first bolt penetrates through the through holes on the first upper lug and the first lower lug, the first bolt is fixedly connected with the first upper lug, and a second bolt penetrates through the through holes on the second upper lug and the second lower lug, and the second bolt is fixedly connected with the second upper lug.

Further, specifically, a second through hole and a third through hole which are the same in size and shape are formed in the valve body, the axes of the second through hole and the third through hole are perpendicular to the axis of the first shaft hole, and the second through hole or the third through hole can be closed by rotation of the valve core.

Further, specifically, the groove is an annular groove, the soft sealing element is annular, and when the second through hole is closed, an inner ring of the annular groove is larger than the inner diameter of the second through hole.

The beneficial effects of the utility model are that, the utility model discloses a soft sealed rotary valve of quick detach formula, case and valve rod fixed connection, the upper end cover fixed connection of valve rod and valve body consequently through the upper end cover of dismantling the valve body, can be with the case along with the upper end cover whole take out, easy dismounting is swift, the maintenance of being convenient for.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic perspective view of the quick-release soft seal rotary valve of the present invention.

Fig. 2 is a schematic view of the valve body structure of the quick-release soft seal rotary valve of the present invention.

Fig. 3 is a schematic structural diagram of the valve element (including the soft sealing element) of the quick-release soft seal rotary valve of the present invention.

Fig. 4 is a schematic structural diagram of a valve element (excluding a soft sealing element) of the quick-release soft-seal rotary valve of the present invention.

Fig. 5 is a schematic structural diagram of a valve element (including a soft sealing element) of the quick-release soft seal rotary valve of the present invention.

Fig. 6 is a sectional view a-a of fig. 5.

In the figure: 1. the valve comprises a valve body, 11, a first shaft hole, 12, a second through hole, 13, a third through hole, 14, a first lower support lug, 15, a second lower support lug, 2, a valve core, 21, a groove, 22, an air hole, 3, a rotary driving mechanism, 4, a soft sealing element, 5, an inflation chamber, 6, a valve rod, 7, an upper end cover, 71, a first upper support lug, 72, a second upper support lug, 8, a first bolt, 9 and a second bolt.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

As shown in fig. 1-6, it is the best embodiment of the utility model, a quick detach formula soft seal rotary valve, including valve body 1, case 2 and rotary driving mechanism 3, case 2 sets up in valve body 1, rotary driving mechanism 3 (adopt the tilt cylinder) drive valve core 2 rotate between opening and closing of valve body 1, be provided with soft sealing member 4 between case 2 and the valve body 1, set up fluted 21 on the case 2, in recess 21 was arranged in to soft sealing member 4, recess 21 was the annular groove, and soft sealing member 4 was the annular, has seted up the ascending primary shaft hole 11 of vertical side on the valve body 1, rotary driving mechanism 3 passes through

valve rod

6 and 2 transmission connections of case, and in valve rod 6 stretched into primary shaft hole 11, and the coaxial setting with primary shaft hole 11. The valve body 1 is further provided with a second through hole 12 and a third through hole 13 which are the same in size, shape and height position, the axes of the second through hole 12 and the third through hole 13 are perpendicular to the axis of the first shaft hole 11, the second through hole 12 and the third through hole 13 are arranged oppositely, the second through hole 12 or the third through hole 13 can be closed by the rotation of the valve core 2, namely, the second through hole 12 or the third through hole 13 can be blocked by the rotation of the valve core 2. When the second through hole 12 is closed, the inner ring of the annular groove is larger than the inner diameter of the second through hole 12, the inner wall of the valve body 1 is positioned at the periphery of the second through hole 12 and is in sealing connection with the valve core 2, the annular groove is positioned at the periphery of the second through hole 12 on the inner wall of the valve body 1 and is in sealing connection with the outer wall of the third through hole 13 on the inner wall of the valve body 1 after the valve core 2 rotates 180 degrees. An annular sealing element is arranged in the annular groove.

Air pocket 22 has still been seted up to the bottom in recess 21, and air pocket 22 has external aeration component through the pipeline, and when air pocket 22 ventilated, plenum chamber 5 aerifys for the malleation, soft sealing member 4 is supported by the jack-up and leans on 1 inner wall of valve body,

guarantees case

2 and 1 leakproofness of valve body, realizes the self-compensating function, and when 5 pressure release (lose heart) in plenum chamber, soft sealing member 4 is kept away from the inner wall of

valve body

1, 2 dismouting maintenances of case of being convenient for.

An upper end opening of the first shaft hole 11 is detachably and fixedly provided with an upper end cover 7 through a screw, the lower end of the first shaft hole 11 is provided with a lower end cover, a support is fixedly arranged on the upper end cover 7, the rotary driving mechanism 3 is fixed on the support, the rotary driving mechanism 3 is in transmission connection with the valve core 2 through a valve rod 6, the valve rod 6 penetrates through the support and extends into the first shaft hole 11, the valve rod 6 is fixedly connected with the upper end cover 7 through a bearing, the valve rod 6 and the first shaft hole 11 are coaxially arranged, two sides of the upper end cover 7 respectively extend to two sides to form a first upper lug 71 and a second upper lug 72, the first upper lug 71 and the second upper lug 72 are symmetrically arranged at an angle of 180 degrees, two sides of the outer wall of the valve body 1 are respectively and fixedly provided with a first lower lug 14 and a second lower lug 15, the first lower lug 14 and the second lower lug 15 are symmetrically arranged at an angle of 180 degrees, the first upper lug 71 and the first lower lug 14, and the through holes on the first upper lug 71 and the first lower lug 14 are coaxially arranged, the second upper lug 72 and the second lower lug 15 are positioned at the same side, the through holes on the second upper lug 72 and the second lower lug 15 are coaxially arranged, the first bolt 8 penetrates through the through holes on the first upper lug 71 and the first lower lug 14, the nut of the first bolt 8 is fixedly connected with the first upper lug 71, the second bolt 9 penetrates through the through holes on the second upper lug 72 and the second lower lug 15, and the nut of the second bolt 9 is fixedly connected with the second upper lug 72.

When the valve core 2 needs to be taken out for maintenance, only the screw fixedly connected with the upper end port (namely the upper end port of the first shaft hole 11) of the upper end cover 7 for fixing the upper end cover 7 and the valve body 1 needs to be removed, then the bottoms of the two first bolts 8 and the second bolt 9 are upwards jacked, the upper end cover 7 is jacked, the valve core 2 is taken out of the valve body 1 together with the valve rod 6, the first bolt 8 and the second bolt 9 can play roles of guiding and limiting in the taking-out process, so that the valve core 2 can move linearly, the valve core 2 is prevented from being deviated and the inner wall of the valve body 1 from generating friction, and the structure enables the valve core 2 to be more convenient to disassemble and assemble.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a quick detach formula soft seal rotary valve, includes valve body (1), case (2) and rotary driving mechanism (3), case (2) set up in valve body (1), rotary driving mechanism (3) drive valve core (2) are in opening and closing of valve body (1) rotate between its characterized in that: a soft sealing element (4) is arranged between the valve core (2) and the valve body (1), a groove (21) is arranged on the valve core (2), the soft sealing element (4) is arranged in the groove (21), an air hole (22) is also arranged at the bottom in the groove (21), the air hole (22) is externally connected with an air source through a pipeline,

a plenum chamber (5) is formed between the soft sealing element (4) and the bottom in the groove (21), the air hole (22) is communicated with the plenum chamber (5), and the soft sealing element (4) is abutted against the valve body (1) when the plenum chamber (5) is pressurized; when the inflation chamber (5) is decompressed, the soft sealing element (4) is far away from the inner wall of the valve body (1),

the valve body (1) is provided with a first shaft hole (11) in the vertical direction, an upper end opening of the first shaft hole (11) is provided with an upper end cover (7), a lower end of the first shaft hole (11) is provided with a lower end cover, the upper end cover (7) is fixedly provided with a support, the rotary driving mechanism (3) is fixed on the support, the rotary driving mechanism (3) is in transmission connection with the valve core (2) through a valve rod (6), the valve rod (6) penetrates through the support and extends into the first shaft hole (11), the valve rod (6) is fixedly connected with the upper end cover (7) through a bearing, the valve rod (6) and the first shaft hole (11) are coaxially arranged, the side edge of the upper end cover (7) extends outwards to form an upper support lug, the outer wall of the valve body (1) is fixedly provided with a lower support lug, the upper support lug and the lower support lug are both provided with through holes, and the through holes on, the bolt penetrates through the through hole of the upper support lug and is fixedly connected with the upper support lug.

2. The quick release type soft seal rotary valve of claim 1, wherein: the two sides of the upper end cover (7) are respectively extended with a first upper lug (71) and a second upper lug (72) towards the two sides, the first upper lug (71) and the second upper lug (72) are symmetrically arranged at 180 degrees, the two sides of the outer wall of the valve body (1) are respectively and fixedly provided with a first lower lug (14) and a second lower lug (15), the first lower lug (14) and the second lower lug (15) are symmetrically arranged at 180 degrees, the first upper lug (71) and the first lower lug (14) are positioned at the same side, the through holes on the first upper lug (71) and the first lower lug (14) are coaxially arranged, the second upper lug (72) and the second lower lug (15) are positioned at the same side, the through holes on the second upper lug (72) and the second lower lug (15) are coaxially arranged, a first bolt (8) penetrates through the through holes on the first upper lug (71) and the first lower lug (14), and the first bolt (8) is fixedly connected with the first upper lug (71), the second bolt (9) penetrates through the through holes in the second upper support lug (72) and the second lower support lug (15), and the second bolt (9) is fixedly connected with the second upper support lug (72).

3. The quick release type soft seal rotary valve of claim 2, wherein: a second through hole (12) and a third through hole (13) which are the same in size and shape are formed in the valve body (1), the axes of the second through hole (12) and the third through hole (13) are perpendicular to the axis of the first shaft hole (11), and the second through hole (12) or the third through hole (13) can be closed by rotation of the valve core (2).

4. The quick release type soft seal rotary valve of claim 3, wherein: the groove (21) is an annular groove, the soft sealing element (4) is annular, and when the second through hole (12) is closed, the inner ring of the annular groove is larger than the inner diameter of the second through hole (12).