CN211525049U

CN211525049U - Reversing mechanism of pneumatic diaphragm pump

Info

Publication number: CN211525049U
Application number: CN201921573989.XU
Authority: CN
Inventors: 韩振猛; 占方余; 刘泽洋
Original assignee: Bst Pump Tianjin Co ltd
Current assignee: Bst Pump Tianjin Co ltd
Priority date: 2019-09-21
Filing date: 2019-09-21
Publication date: 2020-09-18
Anticipated expiration: 2029-09-21

Abstract

The utility model relates to the technical field of production and manufacture of air pumps, and discloses a reversing mechanism of a pneumatic diaphragm pump, which comprises a valve body, wherein an air inlet is arranged at the top of the valve body, compressed air is introduced from the air inlet and flows to a first air inlet hole and an annular groove, and then flows out from a second air outlet hole to push the pneumatic diaphragm and a valve rod to move outwards, when the valve body moves to a limit position, a diversion trench is communicated with the first pressure relief hole to release the compressed air at the top end of a valve core through an exhaust hole, under the action of pressure, the valve core rises, the second air inlet hole is communicated with a driving port when the valve core rises, the compressed air flows out from the second air outlet hole to push the pneumatic diaphragm and the valve rod to move inwards, when the valve body moves inwards to the limit position, the diversion trench is communicated with the second pressure relief hole to release the compressed air at the bottom, the reversing device has the advantage of reversing airflow with high efficiency.

Description

Reversing mechanism of pneumatic diaphragm pump

Technical Field

The utility model relates to a production and the manufacturing technology field of air pump specifically are a pneumatic diaphragm pump reversing mechanism.

Background

The working principle of the pneumatic diaphragm pump is that high-pressure gas is introduced into an air chamber on one side, the diaphragm is driven to move, when the diaphragm moves to a limit position, the air flow is guided to an air chamber on the other side through a reversing mechanism, meanwhile, the air chamber on one side exhausts, when the diaphragm moves to the limit position on the other side, the air flow is guided to one side through the reversing mechanism, the initial position is returned, and the whole circulation is completed.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a pneumatic diaphragm pump reversing mechanism possesses the high efficiency and carries out the advantage of switching-over to the air current, has solved the problem that air pump air current switching-over is more complicated.

(II) technical scheme

For the purpose that realizes above-mentioned high efficiency and carry out the switching-over to the air current, the utility model provides a following technical scheme: a reversing mechanism of a pneumatic diaphragm pump comprises a valve body, wherein an air inlet is formed in the right side of the top of the valve body, a driving port is formed in the left side of the air inlet, a valve core is movably connected to the left side of the driving port, a first guide groove is formed in the top of the valve core, a second guide groove is formed in the bottom of the valve core, guide rods are inserted into the first guide groove and the second guide groove, an air valve end cover is fixedly connected to the top of each guide rod, a first air inlet hole is formed in the upper portion of the right side of the valve core and communicated with the first guide groove, a first air outlet groove is movably connected to the left side of a first groove, a first air outlet pipe is fixedly connected to the left side of the first air outlet groove, a second air inlet hole is formed in the lower portion of the right side of the valve core and communicated with the second guide groove, and a second air outlet hole is, the left side fixedly connected with second outlet duct of second venthole, first pressure relief groove has been seted up to the left side top of valve body, the first pressure relief pipe of left end fixedly connected with of first pressure relief groove, the second pressure relief groove has been seted up to the left side below of valve body, the left end fixedly connected with second pressure relief pipe of second pressure relief groove, the equal swing joint of left end of first pressure relief pipe and second pressure relief pipe has the guiding gutter, the guiding gutter is seted up on the outer wall of valve rod.

Preferably, the air inlet on the right side of the top of the valve body is integrated with a filter element installation cavity for filtering compressed air, so that the compressed air can be effectively introduced into the air inlet, the air pump is driven by the reversing mechanism to run for air flow reversing, the working stability of the air pump is ensured, and the air pump can run efficiently for a long time.

Preferably, pneumatic diaphragms are fixedly connected to two ends of the valve rod, and the valve rod drives the pneumatic diaphragms on the left side and the right side to move under the action of compressed air, so that the air pump can stably output air, and the problem that the air flow in the conventional air pump is complicated to reverse is solved.

Preferably, the air valve end cover is fixedly connected inside the valve body, the guide rod at the top of the air valve end cover can be a cylinder, a cube or a prism, the guide rod can play a role in limiting rotation of the valve core, the valve core can only move in an up-and-down translational mode in the valve body, the position of the guide rod can be fixed through the air valve end cover, and therefore the whole reversing structure is more stable.

Preferably, the height of the valve core is smaller than that of the valve body, so that the valve core can move up and down in the valve body under the pushing of compressed air, and thus, the air flow can be effectively reversed, and the aim of efficiently reversing the air flow is fulfilled.

Preferably, the distance between the first air outlet groove and the second air outlet hole is smaller than the distance between the first groove and the second groove, when the valve core is positioned at the top, the first groove is communicated with the first air outlet groove, so that compressed air can be discharged through the first air outlet groove, when the valve core is positioned at the bottom, the first air outlet groove is shielded, and at the moment, the second groove is communicated with the second air outlet hole, so that the compressed air is discharged from the second air outlet hole.

Preferably, the left side and the right side of the outer wall of the valve rod are provided with guide grooves, so that compressed air at the top or the bottom of the valve core can be effectively guided to the atmosphere, and the valve core can be pushed to move upwards or downwards in the valve body to change the air flow.

(III) advantageous effects

Compared with the prior art, the utility model provides a pneumatic diaphragm pump reversing mechanism possesses following beneficial effect:

1. this pneumatic diaphragm pump reversing mechanism, let in compressed air through the air inlet, the compressed air who lets in flows into first inlet port and annular groove from the drive mouth, and flow to the second outlet duct in the left second venthole of second recess, the positive one end at the valve rod is led to on the top of second outlet duct, promote pneumatic diaphragm and the outside motion of valve rod after the compressed air who gets into flows out, when valve rod motion to extreme position, the guiding gutter of valve rod front one side switches on with first pressure release pipe mutually and carries out the pressure release, top pressure reduces rapidly, atmospheric pressure promotes the valve core and rises, through the air inlet, the drive mouth, first inlet port, the second recess, the second venthole, the second outlet duct, the valve rod, the guiding gutter, first pressure release pipe, the cooperation between first pressure release groove and the case is used, thereby the effect that makes the valve rod seesaw under compressed air's effect has been reached.

2. In the reversing mechanism of the pneumatic diaphragm pump, when the valve core rises to the top, the second air inlet is communicated with the driving port, the first air inlet is closed, at the moment, compressed air flows into the first air outlet pipe from the first air outlet groove on the left side of the first groove through the annular groove, the compressed air flowing out of the first air outlet pipe is communicated with the pneumatic diaphragm on the back side and pushes the pneumatic diaphragm on the back side and the valve rod to move inwards, when the valve rod moves inwards to the limit position, the diversion trench on the side wall of the back of the valve rod is communicated with the second pressure relief pipe to relieve pressure, the bottom pressure is reduced rapidly, the air pressure pushes the valve core to descend, the circular motion of the valve core and the valve rod is completed, through the cooperation use between case, second inlet port, drive mouth, second recess, first air outlet groove, first outlet duct, valve rod, guiding gutter, second pressure release pipe, second pressure release groove and the case to reach the effect that can high efficiency carry out the switching-over to the air current.

Drawings

FIG. 1 is a schematic structural view of the present invention;

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

FIG. 3 is a schematic view of a valve stem portion of the present invention;

fig. 4 is a side view of the valve body of the present invention.

In the figure: 1-valve body, 2-air inlet, 3-driving port, 4-guide rod, 5-air valve end cover, 6-first air inlet hole, 7-second air inlet hole, 8-first guide groove, 9-second guide groove, 10-first groove, 11-second groove, 12-first air outlet hole, 13-second air outlet hole, 14-first air outlet pipe, 15-second air outlet pipe, 16-valve core, 17-valve rod, 18-first pressure relief pipe, 19-second pressure relief pipe, 20-first pressure relief groove, 21-second pressure relief groove and 22-guide groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a reversing mechanism of a pneumatic diaphragm pump comprises a valve body 1, an air inlet 2 is arranged on the right side of the top of the valve body 1, the air inlet 2 on the right side of the top of the valve body 1 is integrated with a filter element installation cavity for filtering compressed air, so that the compressed air can be effectively introduced into the air inlet 2, and then the reversing mechanism drives an air pump to operate to reverse air flow, thereby ensuring the stability of the air pump operation, so that the air pump can efficiently operate for a long time, a driving port 3 is arranged on the left side of the air inlet 2, a valve core 16 is movably connected on the left side of the driving port 3, a first guide groove 8 is arranged on the top of the valve core 16, a second guide groove 9 is arranged on the bottom of the valve core 16, guide rods 4 are inserted into the first guide groove 8 and the second guide groove 9, an air valve end cover 5 is fixedly connected on the, the guide rod 4 at the top of the air valve end cover 5 can be a cylinder, a cube or a prism, the guide rod 4 can play a role in limiting the rotation of the valve core 16, so that the valve core 16 can only do up-and-down translation motion in the valve body 1, and the position of the guide rod 4 can be fixed through the air valve end cover 5, so that the whole reversing structure is more stable, the height of the valve core 16 is smaller than that of the valve body 1, so that the valve core 16 can do up-and-down motion in the valve body 1 under the push of compressed air, thereby effectively reversing the air flow and achieving the purpose of efficiently reversing the air flow, a first air inlet hole 6 is arranged above the right side of the valve core 16, a first groove 10 is fixedly connected to the left side of the valve core 16, a first air outlet hole 12 is movably connected to the left side of the first groove 10, a first air outlet pipe 14 is fixedly connected to the left side of the first air outlet hole, the left side of the second air inlet hole 7 is fixedly connected with a second groove 11, the distance between the first air outlet hole 12 and the second air outlet hole 13 is smaller than the distance between the first groove 10 and the second groove 11, when the valve core 16 moves downwards, the first groove 10 is communicated with the first air outlet hole 12, so that compressed air can be discharged through the first air outlet hole 12, when the valve core 16 moves upwards, the first air outlet hole 12 is shielded, at the moment, the second groove 11 is communicated with the second air outlet hole 13, so that the compressed air is discharged from the second air outlet hole 13, the left side of the second groove 11 is fixedly connected with the second air outlet hole 13, the left side of the second air outlet hole 13 is fixedly connected with a second air outlet pipe 15, a first pressure relief groove 20 is arranged above the left side of the valve body 1, the left end of the first pressure relief groove 20 is fixedly connected with a first pressure relief pipe 18, a second pressure relief groove 21 is arranged below the left end of the valve body 1, and the left side of the second pressure relief groove 21 is connected with a second, the equal swing joint in left end of first pressure release pipe 18 and second pressure release pipe 19 has guiding gutter 22, guiding gutter 22 is seted up on the outer wall of valve rod 17, the equal fixedly connected with pneumatic diaphragm in both ends of valve rod 17, valve rod 17 drives the pneumatic diaphragm motion on left and right sides under compressed air's effect, thereby make exporting that the air pump can be stable, the more complicated problem of air current switching-over in the air pump in the past has been solved, guiding gutter 22 has all been seted up to the outer wall left and right sides of valve rod 17, can pass through the exhaust hole pressure release to case 16's top or bottom pressure, thereby can push case 16 and move up or move down in valve body 1 and carry out the air current switching-over.

The working principle is that compressed air is introduced from an air inlet 2, the introduced compressed air flows to a first air inlet hole 6 and an annular groove through a driving port 3, then flows into a second air outlet hole 13 from the annular groove and flows to a second air outlet pipe 15 from the second air outlet hole 13, the compressed air flows out from the second air outlet pipe 15 and pushes a pneumatic diaphragm and a valve rod 17 to move outwards, when the valve rod 17 moves to the limit position, a guide groove 22 is communicated with a first pressure relief groove 20 to relieve pressure, the compressed air is discharged through a first pressure relief pipe 18 and a first pressure relief groove 20, the air pressure is rapidly reduced so as to push a valve core 16 to rise, the second air inlet hole 7 on the valve core 16 is communicated with the driving port 3, the first air inlet hole 6 is closed, at the moment, the compressed air flows into the first air outlet hole 12 through the second air inlet hole 7 and the annular groove and flows out after flowing to a first air outlet pipe 14 from the first air outlet hole 12, the air pressure rapidly decreases and pushes the valve core 16 to descend, so that the valve core 16 and the valve rod 17 are circularly moved.

In summary, in the reversing mechanism of the pneumatic diaphragm pump, compressed air is introduced through the air inlet 2, the introduced compressed air flows into the first air inlet 6 and the annular groove from the driving port 3, and then flows into the second air outlet 13 on the left side of the second groove 11 from the annular groove to flow to the second air outlet pipe 15, the top end of the second air outlet pipe 15 passes through one end of the front surface of the valve rod 17, the introduced compressed air flows out to push the pneumatic diaphragm and the valve rod 17 to move outwards, when the valve rod 17 moves to the limit position, the flow guide groove 22 on one side of the front surface of the valve rod 17 is communicated with the second pressure release pipe 19 to release pressure, the compressed air is discharged through the first pressure release pipe 18 and the first pressure release groove 20, the air pressure is rapidly reduced to push the valve core 16 to rise, and the reversing mechanism is pushed to pass through the air inlet 2, the driving port 3, the first air inlet 6, the second air outlet 13, the second air outlet pipe 15, The first pressure relief groove 20 is matched with the valve core 16, so that the effect of enabling the valve rod 17 to move back and forth under the action of compressed air is achieved; when the valve core 16 rises, the second air inlet 7 is communicated with the driving port 3, the first air inlet 6 is closed, at the moment, compressed air passes through the second air inlet 7 and the annular groove and flows into the second air outlet pipe 15 from the second air outlet hole 13 on the left side of the second groove 11, the compressed air flowing out of the second air outlet pipe 15 is communicated with the pneumatic diaphragm on the back side and pushes the pneumatic diaphragm on the back side and the valve rod 17 to move inwards, when the valve rod 17 moves inwards to the limit position, the guide groove 22 on the side wall on the back side of the valve rod 17 is communicated with the second pressure release pipe 19, the compressed air is discharged through the second pressure release pipe 19 and the second pressure release groove 21, the air pressure is rapidly reduced so as to push the valve core 16 to descend, the circular motion of the valve core 16 and the valve rod 17 is completed, and the second air inlet 7, the driving port 3, the first air outlet hole 12, the first air outlet pipe 14, the valve rod 17, the guide groove 22, The second pressure relief pipe 19, the second pressure relief groove 21 and the valve core 16 are matched, so that the effect of efficiently reversing the air flow is achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pneumatic diaphragm pump reversing mechanism, includes valve body (1), its characterized in that: the air inlet (2) is formed in the right side of the top of the valve body (1), the driving port (3) is formed in the left side of the air inlet (2), the valve core (16) is movably connected to the left side of the driving port (3), the first guide groove (8) is formed in the top of the valve core (16), the second guide groove (9) is formed in the bottom of the valve core (16), the guide rods (4) are inserted into the first guide groove (8) and the second guide groove (9), the air valve end cover (5) is fixedly connected to the top of each guide rod (4), the first air inlet (6) is formed in the upper portion of the right side of the valve core (16), the first air inlet (6) is communicated with the first guide groove (8), the first air outlet (12) is movably connected to the left side of the first groove (10), and the first air outlet (14) is fixedly connected to the left side of the first air outlet (12), the valve is characterized in that a second air inlet hole (7) is formed in the lower portion of the right side of the valve core (16), the second air inlet hole (7) is communicated with a second guide groove (9), a second air outlet hole (13) is fixedly connected to the left side of a second groove (11), a second air outlet pipe (15) is fixedly connected to the left side of the second air outlet hole (13), a first pressure relief groove (20) is formed in the upper portion of the left side of the valve body (1), a first pressure relief pipe (18) is fixedly connected to the left end of the first pressure relief groove (20), a second pressure relief groove (21) is formed in the lower portion of the left side of the valve body (1), a second pressure relief pipe (19) is fixedly connected to the left end of the second pressure relief groove (21), a guide groove (22) is movably connected to the left ends of the first pressure relief pipe (18) and the second pressure relief pipe (19), and the guide groove (22) is formed in the outer wall.

2. A reversing mechanism for an air operated diaphragm pump according to claim 1, wherein: the air inlet (2) on the right side of the top of the valve body (1) is integrated with a filter element installation cavity for filtering compressed air.

3. A reversing mechanism for an air operated diaphragm pump according to claim 1, wherein: and both ends of the valve rod (17) are fixedly connected with pneumatic diaphragms.

4. A reversing mechanism for an air operated diaphragm pump according to claim 1, wherein: the air valve end cover (5) is fixedly connected to the inside of the valve body (1), and the guide rod (4) at the top of the air valve end cover (5) can be a cylinder, a cube or a prism.

5. A reversing mechanism for an air operated diaphragm pump according to claim 1, wherein: the height of the valve core (16) is less than that of the valve body (1).

6. A reversing mechanism for an air operated diaphragm pump according to claim 1, wherein: the distance between the first air outlet hole (12) and the second air outlet hole (13) is smaller than the distance between the first groove (10) and the second groove (11).

7. A reversing mechanism for an air operated diaphragm pump according to claim 1, wherein: the left side and the right side of the outer wall of the valve rod (17) are provided with guide grooves (22).