CN209688226U - A kind of duct-type pneumatic valve - Google Patents

Abstract

The utility model belongs to pneumatic operated valve technical field, in particular a kind of duct-type pneumatic valve, including valve body, the side of the valve body opens up and the first groove, the first cavity is offered on the valve body, first groove offers first through hole on the side inner wall far from opening, the first through hole is connected to the first cavity, the valve body offers the second groove far from the side of the first groove, connecting hole is offered on the side inner wall of second groove, the connecting hole is connected to the first cavity, the second cavity is offered on the valve body, the second through-hole is offered at the top of the valve body, second through-hole is connected to the second cavity, rotating bar is rotatably equipped in second through-hole.The utility model structure is simple, easy to use, and failure rate is low, and long service life is cheap, can quickly adjust rate-of flow, operation is easy, easy to control.

Description

A kind of duct-type pneumatic valve

Technical field

The utility model relates to pneumatic operated valve technical field more particularly to a kind of duct-type pneumatic valves.

Background technique

A part being mounted on pipeline when tubular type pneumatic operated valve rises in control flow of media and is mainly switched off and on work With, it is suitable for a variety of media such as water, steam and weak erosive gas, liquid, in pneumatic operated valve opening-closing process, the frictional force of sealing surface Small, wearability is good, and opening and closing stroke is small, and flexibly, reflection is rapid, by pipe valve application for opening and closing.

But in the prior art, since the rotation angle of operated pneumatic valve is mostly between 0-90 degree, when rotating to 90 degree, valve Men Ze is shown in a fully open operation, therefore its rotational resistance is larger, and equipment fault is more, for this purpose, it is proposed that a kind of duct type is pneumatic Valve is for solving the above problems.

Utility model content

Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of duct type proposed is pneumatic Valve.

To achieve the goals above, the utility model adopts the technical scheme that a kind of duct-type pneumatic valve, including valve Body, the side of the valve body open up with the first groove, the first cavity is offered on the valve body, first groove is far from opening Side inner wall on offer first through hole, the first through hole is connected to the first cavity, and the valve body is far from the first groove Side offers the second groove, and connecting hole, the connecting hole and the first cavity are offered on the side inner wall of second groove It is connected to, offers the second cavity on the valve body, the second through-hole, second through-hole and second are offered at the top of the valve body Cavity is connected to, and rotating bar is rotatably equipped in second through-hole, and one end of the rotating bar extends in the second cavity and solid Dingan County is equipped with the first angular wheel, and first cavity is described far from offering third through-hole on the side inner wall of first through hole Rotating cylinder is rotatably equipped in third through-hole, one end of the rotating cylinder extends in the second cavity, and fixing sleeve is equipped on the rotating cylinder Second angular wheel, second angular wheel are engaged with the first angular wheel, and the rotating cylinder internal screw thread is equipped with screw rod, described One end of screw rod extends in the first cavity and is fixedly installed with sliding block, and the inner wall of the sliding block and the first cavity is slidably connected.

Preferably, the rotating bar extends to outside valve body far from one end of the first angular wheel and is fixedly installed with knob.

Preferably, the screw rod extends in the second cavity far from one end of sliding block and is fixedly installed with limited block.

Preferably, sealing ring is arranged on the sliding block, the inner ring fixation of the sealing ring is set on sliding block, described close The outer ring of seal and the inner wall of the first cavity are slidably and sealingly connected with.

Preferably, sealing bearing is equipped in the third through-hole, the inner ring of the sealing bearing is fixed to be set in described turn On cylinder, the outer ring of the sealing bearing is fixedly connected with the inner wall of third through-hole.

Preferably, internal screw thread is offered on the inner wall of the rotating cylinder, the internal screw thread is adapted with the external screw thread of screw rod.

Compared with prior art, the utility model has the beneficial effects that firstly, passing through valve body, the first groove, the first chamber Body, the second groove, connecting hole, the second cavity, the second through-hole, rotating bar, the first angular wheel, third through-hole, turns first through hole Cylinder, the second angular wheel, screw rod and sliding block match, in use, turning knob, knob drives rotating bar in the second through-hole Rotation, rotating bar drive the first angular wheel to rotate when rotating, the first angular wheel drives the second angular wheel to rotate when rotating, Second angular wheel drives drum rotation when rotating, and matches effect by the external screw thread of internal screw thread and screw rod in rotating cylinder, makes Drive screw rod mobile when obtaining drum rotation, band movable slider slides in the first cavity when screw rod is mobile, by changing when sliding block movement Become the joint face size of connecting hole and the first cavity, to change the flow that medium passes through, the utility model structure is simple, makes With conveniently, failure rate is low, long service life, cheap, can quickly adjust rate-of flow, operation is easy, easy to control.

Detailed description of the invention

Fig. 1 faces schematic cross-sectional view for the utility model；

Fig. 2 is the enlarged structure schematic diagram of part A in Fig. 1；

Fig. 3 is the diagrammatic side-view cross-sectional structural schematic diagram of the first cavity in the utility model.

In figure: 1, valve body；2, the first groove；3, the first cavity；4, first through hole；5, the second groove；6, connecting hole；7, Two cavitys；8, the second through-hole；9, rotating bar；10, the first angular wheel；11, third through-hole；12, rotating cylinder；13, the second conical tooth Wheel；14, screw rod；15, sliding block.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of duct-type pneumatic valve, including valve body 1, valve The side of body 1 open up with the first groove 2, the first cavity 3 is offered on valve body 1, on the first side inner wall of the groove 2 far from opening First through hole 4 is offered, first through hole 4 is connected to the first cavity 3, and it is recessed that valve body 1 far from the side of the first groove 2 offers second Slot 5 offers connecting hole 6 on the side inner wall of second groove 5, and connecting hole 6 is connected to the first cavity 3, and is offered on valve body 1 Two cavitys 7, the top of valve body 1 offer the second through-hole 8, and the second through-hole 8 is connected to the second cavity 7, rotation peace in the second through-hole 8 Equipped with rotating bar 9, one end of rotating bar 9 extends in the second cavity 7 and is fixedly installed with the first angular wheel 10, the first cavity Third through-hole 11 is offered on the 3 side inner walls far from first through hole 4, rotating cylinder 12, rotating cylinder are rotatably equipped in third through-hole 11 12 one end extends in the second cavity 7, and fixing sleeve is equipped with the second angular wheel 13, the second angular wheel 13 and the on rotating cylinder 12 The engagement of one angular wheel 10,12 internal screw thread of rotating cylinder are equipped with screw rod 14, and one end of screw rod 14 extends in the first cavity 3 and fixed Sliding block 15 is installed, sliding block 15 and the inner wall of the first cavity 3 are slidably connected.

Rotating bar 9 extends to outside valve body 1 far from one end of the first angular wheel 10 and is fixedly installed with knob, and screw rod 14 is remote One end from sliding block 15 extends in the second cavity 7 and is fixedly installed with limited block, and sealing ring, sealing ring are arranged on sliding block 15 Inner ring fixation be set on sliding block 15, the outer ring of sealing ring and the inner wall of the first cavity 3 are slidably and sealingly connected with, third through-hole 11 Interior to be equipped with sealing bearing, the inner ring fixation for sealing bearing is set on rotating cylinder 12, seals outer ring and the third through-hole 11 of bearing Inner wall is fixedly connected, and internal screw thread is offered on the inner wall of rotating cylinder 12, and internal screw thread is adapted with the external screw thread of screw rod 14, passes through valve body 1, the first groove 2, the first cavity 3, first through hole 4, the second groove 5, connecting hole 6, the second cavity 7, the second through-hole 8, rotating bar 9, the first angular wheel 10, third through-hole 11, rotating cylinder 12, the second angular wheel 13, screw rod 14 and sliding block 15 match, and use When, turning knob, knob drives rotating bar 9 to rotate in the second through-hole 8, and rotating bar 9 drives the first angular wheel 10 when rotating Rotation, the first angular wheel 10 drive the second angular wheel 13 to rotate when rotating, the second angular wheel 13 drives rotating cylinder when rotating 12 rotations, match effect by the external screw thread of internal screw thread and screw rod 14 in rotating cylinder 12, so that rotating cylinder 12 drives spiral shell when rotating Bar 14 is mobile, and band movable slider 15 slides in the first cavity 3 when screw rod 14 is mobile, changes connecting hole 6 when mobile by sliding block 15 With the joint face size of the first cavity 3, to change the flow that medium passes through, the utility model structure is simple, easy to use, Failure rate is low, long service life, cheap, can quickly adjust rate-of flow, operation is easy, easy to control.

Working principle: valve body 1 is fixed between two tracheaes, in use, turning knob, knob drives rotating bar 9 the Rotation in two through-holes 8, rotating bar 9 drive the first angular wheel 10 to rotate when rotating, the first angular wheel 10 drives the when rotating The rotation of two angular wheels 13, drives rotating cylinder 12 to rotate, passes through the internal screw thread and spiral shell in rotating cylinder 12 when the second angular wheel 13 rotates The external screw thread of bar 14 matches effect, so that drive screw rod 14 mobile when rotating cylinder 12 rotates, band movable slider 15 when screw rod 14 is mobile It is slided in the first cavity 3, changes the joint face size of connecting hole 6 and the first cavity 3 when mobile by sliding block 15, to change The flow that gas passes through.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of duct-type pneumatic valve, including valve body (1), it is characterised in that: the side of the valve body (1) opens up and the first groove (2), it is offered the first cavity (3) on the valve body (1), first groove (2) offers on the side inner wall far from opening First through hole (4), the first through hole (4) are connected to the first cavity (3), side of the valve body (1) far from the first groove (2) Offer the second groove (5), offered connecting hole (6) on the side inner wall of second groove (5), the connecting hole (6) with First cavity (3) is connected to, and is offered the second cavity (7) on the valve body (1), and it is logical that second is offered at the top of the valve body (1) Hole (8), second through-hole (8) are connected to the second cavity (7), are rotatably equipped with rotating bar (9) in second through-hole (8), One end of the rotating bar (9) extends in the second cavity (7) and is fixedly installed with the first angular wheel (10), first chamber Body (3) is rotatablely installed in the third through-hole (11) far from offering third through-hole (11) on the side inner wall of first through hole (4) Have rotating cylinder (12), one end of the rotating cylinder (12) extends in the second cavity (7), and fixing sleeve is equipped with second on the rotating cylinder (12) Angular wheel (13), second angular wheel (13) are engaged with the first angular wheel (10), rotating cylinder (12) the internal screw thread peace Equipped with screw rod (14), one end of the screw rod (14) extends in the first cavity (3) and is fixedly installed with sliding block (15), the cunning Block (15) and the inner wall of the first cavity (3) are slidably connected.

2. a kind of duct-type pneumatic valve according to claim 1, it is characterised in that: the rotating bar (9) is far from the first cone One end of shape gear (10) extends to valve body (1) outside and is fixedly installed with knob.

3. a kind of duct-type pneumatic valve according to claim 1, it is characterised in that: the screw rod (14) is far from sliding block (15) One end extend in the second cavity (7) and be fixedly installed with limited block.

4. a kind of duct-type pneumatic valve according to claim 1, it is characterised in that: be arranged with sealing on the sliding block (15) The inner ring fixation of circle, the sealing ring is set on sliding block (15), and the inner wall of the outer ring of the sealing ring and the first cavity (3) is sliding Dynamic sealing connection.

5. a kind of duct-type pneumatic valve according to claim 1, it is characterised in that: be equipped in the third through-hole (11) close Bearing is sealed, the inner ring fixation of the sealing bearing is set on the rotating cylinder (12), and the outer ring of the sealing bearing and third are logical The inner wall in hole (11) is fixedly connected.

6. a kind of duct-type pneumatic valve according to claim 1, it is characterised in that: opened up on the inner wall of the rotating cylinder (12) There is internal screw thread, the internal screw thread is adapted with the external screw thread of screw rod (14).