CN217977405U

CN217977405U - Blanking valve

Info

Publication number: CN217977405U
Application number: CN202222419859.9U
Authority: CN
Inventors: 李旭; 唐志强; 冀胜利; 袁小波
Original assignee: BASF Shanshan Battery Materials Co Ltd
Current assignee: BASF Shanshan Battery Materials Co Ltd
Priority date: 2022-09-13
Filing date: 2022-09-13
Publication date: 2022-12-06
Anticipated expiration: 2032-09-13

Abstract

The utility model discloses an unloading valve, including the valve body, be equipped with the mount pad on the valve body, the transmission shaft is installed to the mount pad internal rotation, and the one end of transmission shaft is equipped with the valve rod that passes in the valve body, is equipped with at least one valve plate with the break-make of pivoted mode control valve body on the valve rod, and the annular inner wall of valve body is fitted with a contraceptive ring and is equipped with the gasbag, and the air bag connection has aerating device and through aerating device drive gasbag shrink and inflation so that the gasbag with the valve plate separation with hug closely between two kinds of states change. The utility model discloses a set up the gasbag on the annular inner wall of valve body, the inflation of gasbag can be sealed with the gap well to can guarantee the leakproofness of unloading valve, the valve body is when the unloading, and the gasbag exhausts the shrink, makes valve plate and gasbag contactless, thereby has avoided the wearing and tearing of valve plate and valve body effectively.

Description

Blanking valve

Technical Field

The utility model relates to a unloader technical field, concretely relates to unloading valve.

Background

The existing powder blanking valve is generally a star valve or a butterfly valve, and a multi-flap valve is also partially adopted. 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.

Traditional butterfly valve and many lamella valves are reciprocating rotary motion, have great gap between its valve body and the valve plate, therefore its leakproofness is extremely poor, and when its valve body was closed, the material can be followed the gap and followed and fall.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art existence, provide a blanking valve, can guarantee blanking valve's leakproofness.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a blanking valve, includes the valve body, be equipped with the mount pad on the valve body, the transmission shaft is installed to the mount pad internal rotation, the one end of transmission shaft is equipped with the valve rod that passes in the valve body, be equipped with the valve plate of at least one with the break-make of pivoted mode control valve body on the valve rod, the annular inner wall of valve body is fitted with a contraceptive ring and is equipped with the gasbag, the gasbag is connected with aerating device and drives the gasbag through aerating device and contract and expand so that the gasbag changes between two kinds of states with the valve plate separation and hug closely.

Furthermore, a positioning groove is formed in the annular inner wall, a positioning bulge is arranged on the air bag, and the positioning bulge is clamped in the positioning groove.

Further, the valve body is provided with mounting grooves on two side faces adjacent to the annular inner wall, the two ends of the air bag, which are positioned on two sides of the torus, wrap the annular inner wall and are respectively provided with a mounting protrusion, and the mounting protrusions are clamped in the mounting grooves.

Furthermore, a mounting hole is formed in the valve body, an air pipe is inserted into the mounting hole, one end of the air pipe is connected with the air bag, and the other end of the air pipe is connected with the inflating device.

Furthermore, a plurality of valve plates for uniform blanking are arranged on the valve rod.

Furthermore, a speed reduction device is arranged on the mounting seat, and the speed reduction device is in transmission connection with the transmission shaft and the motor respectively and drives the transmission shaft to rotate.

Further, the motor is any one of a servo motor, a stepping motor and a speed reducing motor with a brake.

Furthermore, the transmission shaft is connected with a position sensor for detecting the rotation position of the transmission shaft.

Furthermore, the transmission shaft is provided with at least one contact element, and each contact element is in contact connection with the position sensor and corresponds to each valve plate in position one to one.

Further, the contact piece is in threaded connection with the transmission shaft, and the contact piece is a contact column or a contact piece.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a set up the gasbag on the annular inner wall of valve body, the inflation of gasbag can be sealed with the gap well to can guarantee the leakproofness of unloading valve, the valve body is when the unloading, and the gasbag exhausts the shrink, makes valve plate and gasbag contactless, thereby has avoided the wearing and tearing of valve plate and valve body effectively.

Drawings

Fig. 1 is a schematic structural view of a blanking valve.

Fig. 2 is a partial sectional structural schematic diagram of the blanking valve.

Fig. 3 is a schematic top sectional view of the valve body.

FIG. 4 is a schematic diagram of a position sensor and contacts.

Illustration of the drawings:

1. a valve body; 11. an annular inner wall; 12. positioning a groove; 13. mounting grooves; 14. mounting holes; 2. a mounting base; 21. a drive shaft; 3. a valve stem; 31. a valve plate; 4. an air bag; 41. positioning a projection; 42. mounting a boss; 43. an air tube; 5. a reduction gear; 51. a motor; 6. a position sensor; 7. a contact member.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and specific embodiments.

As shown in fig. 1 to 4, the blanking valve of the present embodiment includes a valve body 1, a mounting seat 2 is disposed on the valve body 1, a transmission shaft 21 is rotatably mounted in the mounting seat 2, a valve rod 3 penetrating through the valve body 1 is disposed at one end of the transmission shaft 21, at least one valve plate 31 for controlling the on-off of the valve body 1 in a rotating manner is disposed on the valve rod 3, an air bag 4 is annularly disposed on an annular inner wall 11 of the valve body 1, and the air bag 4 is connected to an inflation device and drives the air bag 4 to contract and expand through the inflation device so as to enable the air bag 4 to switch between two states of separating from and attaching to the valve plate 31. Through set up gasbag 4 on the annular inner wall at valve body 1, the inflation of gasbag 4 can be sealed the gap well to can guarantee the leakproofness of unloading valve, valve body 1 when the unloading, gasbag 4 exhaust shrink makes valve plate 31 and gasbag 4 contactless, thereby has avoided valve plate 31 and valve body 1's wearing and tearing effectively.

In this embodiment, the annular inner wall 11 is provided with a positioning groove 12, the airbag 4 is provided with a positioning protrusion 41, and the positioning protrusion 41 is clamped in the positioning groove 12. Can conveniently fix a position gasbag 4 on annular inner wall 11 through location arch 41 and constant head tank 12, because constant head tank 12 provides the shrink space of gasbag 4 to can reduce the friction of valve plate 31 to gasbag 4, can prolong the life-span of gasbag 4.

In this embodiment, all be equipped with mounting groove 13 on two sides adjacent with annular inner wall 11 on the valve body 1, gasbag 4 is located the both ends parcel annular inner wall 11 of torus both sides and is equipped with installation arch 42 respectively, and installation arch 42 clamps in mounting groove 13. Can conveniently be fixed in the gasbag 4 on valve body 1 through installation arch 42 and mounting groove 13, through the mode installation with both ends parcel annular inner wall 11, can make gasbag 4's fixed more firm.

In this embodiment, a mounting hole 14 is formed in the valve body 1, an air tube 43 is inserted into the mounting hole 14, one end of the air tube 43 is connected to the airbag 4, and the other end of the air tube 43 is connected to the inflator. The connection between the inflating device and the air bag 4 can be facilitated through the mounting hole 14 and the air pipe 43, so that the structure of the blanking valve is simpler.

In this embodiment, the valve rod 3 is provided with a plurality of valve plates 31 for uniform blanking. The valve plates 31 are driven to rotate through rotation of the transmission shaft 21 and the valve rod 3, uniform blanking can be achieved, and the number of the valve plates 31 is even.

In this embodiment, the mounting base 2 is provided with a speed reducer 5, and the speed reducer 5 is respectively in transmission connection with the transmission shaft 21 and the motor 51 and drives the transmission shaft 21 to rotate.

In the present embodiment, the motor 51 is any one of a servo motor, a stepping motor, and a reduction motor with a brake. The servo motor, the stepping motor and the speed reducing motor with the brake are easy to purchase and low in cost.

In the present embodiment, the transmission shaft 21 is connected with a position sensor 6 for detecting the rotational position of the transmission shaft 21. The transmission shaft 21 is connected with the position sensor 6, and the position sensor 6 is a proximity switch, a photoelectric switch or a contact switch, so that the rotating position of the valve plate 31 is judged, the valve plate 31 can be ensured to be positioned on the same plane with the valve body 1 when the valve plate 31 stops rotating, and the sealing performance of the blanking valve is improved in one step.

In this embodiment, the transmission shaft 21 is provided with at least one contact member 7, and each contact member 7 is in contact connection with the position sensor 6 and corresponds to each valve plate 31 in position. By providing a plurality of contact pieces 7 corresponding to the positions of the valve plates 31 one by one, the rotational position of the valve plate 31 can be accurately detected, and the position of the valve plate 31 and the valve body 1 on the same plane can be easily controlled.

In this embodiment, the contact member 7 is screwed to the transmission shaft 21, and the contact member 7 is a contact post or a contact piece. The contact column is a welding piece, the contact piece is a welding piece or a stamping piece, and the contact piece 7 is simple in manufacture, low in cost and easy to maintain.

When the valve body 1 does not work, the air bag 4 is inflated and expanded and is attached to the valve plate 31, when the valve plate 31 is required to rotate for blanking, the air bag 4 is deflated and contracted, the motor 51 rotates to drive the valve plate 31 to rotate together, when the valve plate 31 is required to stop working, the motor 51 decelerates, the position sensor 6 senses that the valve plate 31 and the valve body 1 are located at the same plane, the motor 51 stops rotating, and the air bag 4 is inflated and expanded to be sealed with the valve plate 31.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments. To those skilled in the art, the modifications and changes that can be made without departing from the scope of the present invention shall be considered as the protection scope of the present invention.

Claims

1. The utility model provides a blanking valve, includes valve body (1), be equipped with mount pad (2) on valve body (1), transmission shaft (21) are installed to mount pad (2) internal rotation, the one end of transmission shaft (21) is equipped with valve rod (3) of passing in valve body (1), a serial communication port, be equipped with valve plate (31) of at least one mode control valve body (1) break-make with the pivoted on valve rod (3), annular inner wall (11) of valve body (1) are fitted with a contraceptive ring and are equipped with gasbag (4), gasbag (4) are connected with aerating device and through aerating device drive gasbag (4) shrink and inflation so that gasbag (4) are changing between two kinds of states of separation and hugging closely with valve plate (31).

2. The blanking valve of claim 1, wherein the annular inner wall (11) is provided with a positioning groove (12), the air bag (4) is provided with a positioning bulge (41), and the positioning bulge (41) is clamped in the positioning groove (12).

3. The blanking valve of claim 1, wherein the valve body (1) is provided with mounting grooves (13) on two sides adjacent to the annular inner wall (11), two ends of the air bag (4) on two sides of the torus wrap the annular inner wall (11) and are respectively provided with a mounting protrusion (42), and the mounting protrusions (42) are clamped in the mounting grooves (13).

4. The blanking valve according to the claim 1, characterized in that, the valve body (1) is provided with a mounting hole (14), an air pipe (43) is inserted into the mounting hole (14), one end of the air pipe (43) is connected with the air bag (4), and the other end of the air pipe (43) is connected with an inflating device.

5. The blanking valve according to claim 1, characterized in that the valve stem (3) is provided with a plurality of valve plates (31) for uniform blanking.

6. The blanking valve according to any one of the claims 1 to 5, wherein a speed reducer (5) is arranged on the mounting seat (2), and the speed reducer (5) is in transmission connection with the transmission shaft (21) and the motor (51) respectively and drives the transmission shaft (21) to rotate.

7. The blanking valve of claim 6, wherein the motor (51) is any one of a servo motor, a stepping motor and a speed reducing motor with a brake.

8. The blanking valve according to any one of the claims 1 to 5, characterized in that a position sensor (6) for detecting the rotational position of the drive shaft (21) is connected to the drive shaft (21).

9. A blanking valve according to claim 8, characterized in that the transmission shaft (21) is provided with at least one contact member (7), and each contact member (7) is in contact connection with a position sensor (6) and corresponds to each valve plate (31) in position.

10. Blanking valve according to claim 9, wherein the contact piece (7) is in threaded connection with a drive shaft (21), the contact piece (7) being a contact post or a contact piece.