Anti-jamming jaw type plug-in valve

Abstract

The utility model relates to a kind of anti-jamming jaw type plug valve, it is related to plug valve technical field, including inner shell, outer shell, valve plate assembly and the drive assembly being arranged in the one side of outer shell, valve plate assembly is arranged in the gap between inner shell and outer shell, valve plate assembly includes two groups of left-right symmetry, any group includes sector plate A, valve plate and sector plate B, valve plate is set as arc plate, located inner shell lower part opening outside, sector plate A and sector plate B are respectively fixed on the upper part of arc plate two sides, sector plate A and sector plate B are respectively located in the two sides outside of inner shell, fixed ring is fixed on the upper end of sector plate A and sector plate B, connecting shaft A is connected between fixed ring in sector plate A upper part and drive assembly;The utility model is simple in structure, convenient to use, and high in stable operation, effectively improve service life.

Description

Technical Field

[0001] This utility model relates to the field of slide gate valve technology, and in particular to an anti-jamming jaw slide gate valve. Background Technology

[0002] Jaw slide gate valves are commonly used for conveying and controlling materials such as powders and granules. However, their structure has drawbacks in terms of sealing and motion guidance, which can easily affect the valve's operational stability and service life. Specifically: 1. The connection between the valve body structure and the valve plate drive mechanism of existing jaw slide gate valves is difficult to achieve a fully sealed design. The existence of gaps can lead to material leakage from this part, causing not only material loss but also pollution of the working environment. In some cases, the leaked material may even enter the drive mechanism, affecting the normal operation of the drive components. 2. The drive mechanism that drives the valve plate is located inside the valve body. During material feeding, material particles can easily accumulate, such as at the guide components of the rollers. This can not only cause the switch to jam, but in severe cases, long-term jamming can also lead to wear of the rollers by material particles, affecting the service life of the entire slide gate valve. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an anti-jamming jaw slide valve with no transmission structure inside the valve body.

[0004] The technical solution adopted in this utility model is: A jamming-resistant jaw slide valve includes an inner housing, an outer housing, a valve plate assembly, and a drive assembly disposed on one side of the outer housing. The valve plate assembly is disposed within the gap between the inner housing and the outer housing. The valve plate assembly includes two symmetrical sets, each set including a sector plate A, a valve plate, and a sector plate B. The valve plate is configured as an arc-shaped plate, located outside the lower opening of the inner housing. Sector plates A and B are respectively fixed to the upper parts of both sides of the arc-shaped plate. Sector plates A and B are respectively located on the outer sides of the inner housing. Both A and the upper ends of the sector plate B are fixed with retaining rings. A rotating shaft A is connected between the retaining ring located on the upper part of sector plate A and the drive assembly. The drive assembly is provided in two sets, which are symmetrically arranged in the left and right directions on one side of the outer shell. Each set includes a bearing seat, a hinge plate, a hydraulic cylinder and a hydraulic cylinder bracket. The bearing seat is fixed on the outside of one side of the outer shell. The outer end of the rotating shaft A is rotatably connected to the bearing seat and then fixedly connected to the upper end of the hinge plate. The hydraulic cylinder is fixed by the hydraulic cylinder bracket, and the piston end is hinged to the lower end of the hinge plate.

[0005] The anti-jamming jaw valve has an outer shell comprising an integrally formed upper square cavity and a lower conical cavity. The inner shell is located inside the outer shell and is placed at the upper opening of the outer shell through an extended folded edge at the upper port. A discharge port is provided at the bottom of the lower conical cavity of the outer shell.

[0006] The anti-jamming jaw valve has an inner shell that is a square cavity with through openings at both the top and bottom. Two valve plates are located outside the bottom of the inner shell and form a seal with the lower opening of the inner shell.

[0007] The anti-jamming jaw valve has its inner end of the rotating shaft A rotatably connected to a bearing in the through hole on the right side of the inner housing, and the retaining ring is fixedly connected to the rotating shaft A.

[0008] The anti-jamming jaw valve has an inner end of a rotating shaft B located in the upper fixing ring of the sector plate B rotatably connected to a bearing in the left through hole of the inner housing, and the fixing ring is fixedly connected to the rotating shaft B. The outer end of the rotating shaft B does not contact the inner wall of the outer housing.

[0009] The anti-jamming jaw valve has two cylinder brackets symmetrically fixed on the outer wall of the outer casing.

[0010] Due to the adoption of the technical solution described above, this utility model has the following advantages: The anti-jamming jaw slide valve of this utility model, by setting the valve plate assembly between the inner shell and the outer shell, and with the connection points between the valve plate and the drive assembly all located outside the feeding space, eliminates the drawback of material leakage between the valve plate and the drive assembly, and prevents leaked material from entering the drive mechanism. It also avoids the accumulation of material particles in the drive assembly during feeding, thus preventing jamming. This utility model has a simple and compact structure, is easy to use, has high operational stability, and effectively improves its service life. Attached Figure Description

[0011] Figure 1 This is an overall schematic diagram of the present invention.

[0012] Figure 2 This is a perspective view of the present invention.

[0013] Figure 3 This is a schematic diagram showing the connection between the valve plate and the transmission assembly of this utility model.

[0014] In the diagram: 1. Inner shell; 2. Outer shell; 3. Hydraulic cylinder; 4. Hydraulic cylinder bracket; 5. Hinge plate; 6. Fixing ring; 7. Rotating shaft A; 8. Bearing seat; 9. Sector plate A; 10. Valve plate; 11. Sector plate B; 12. Rotating shaft B. Detailed Implementation

[0015] The present invention will be further explained below with reference to the accompanying drawings and embodiments. However, this explanation should not be construed as limiting the scope of protection of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0016] Combined with appendix Figure 1-3The aforementioned anti-jamming jaw valve includes an inner housing 1, an outer housing 2, a valve plate assembly, and a drive assembly disposed on one side of the outer housing 2. The valve plate assembly is disposed within the gap between the inner housing 1 and the outer housing 2. The valve plate assembly comprises two symmetrical sets, each set including a sector plate A9, a valve plate 10, and a sector plate B11. The valve plate 10 is configured as an arc-shaped plate, located outside the lower opening of the inner housing 1. Sector plates A9 and B11 are respectively fixed to the upper parts of both sides of the arc-shaped plate. Sector plates A9 and B11 are respectively located on the outer sides of the inner housing 1. A fixing ring is fixed to the upper end of each sector plate A9 and sector plate B11. 6. A rotating shaft A7 is connected between the fixing ring 6 located on the upper part of the sector plate A9 and the drive assembly. The inner end of the rotating shaft A7 is rotatably connected to the bearing in the through hole on the right side of the inner housing 1, and the fixing ring 6 is fixedly connected to the rotating shaft A7. The drive assembly is provided in two sets, which are symmetrically arranged in the left and right directions on one side of the outer housing 2. Each set includes a bearing seat 8, a hinge plate 5, a hydraulic cylinder 3 and a hydraulic cylinder bracket 4. The bearing seat 8 is fixed on the outside of one side of the outer housing 2. The outer end of the rotating shaft A7 is rotatably connected to the bearing seat 8 and then fixedly connected to the upper end of the hinge plate 5. The hydraulic cylinder 3 is fixed by the hydraulic cylinder bracket 4, and the piston end is hinged to the lower end of the hinge plate 5.

[0017] Specifically, the outer shell 2 includes an integrally formed upper square cavity and a lower conical cavity. The inner shell 1 is located inside the outer shell 2, and the inner shell 1 is placed at the upper opening of the outer shell 2 through the extended folded edge of the upper port. A discharge port is provided at the bottom of the lower conical cavity of the outer shell 2. The inner shell 1 is set as a square cavity with through openings at both the top and bottom. Two valve plates 10 are located outside the bottom of the inner shell 1 and form a seal with the lower opening of the inner shell 1.

[0018] Specifically, the inner end of the rotating shaft B12 located in the fixing ring 6 at the top of the sector plate B11 is rotatably connected to the bearing in the through hole on the left side of the inner housing 1, and the fixing ring 6 is fixedly connected to the rotating shaft B12, while the outer end of the rotating shaft B12 does not contact the inner wall of the outer housing 2.

[0019] Specifically, the two cylinder brackets 4 are symmetrically fixed on the outer wall of the outer shell 2. The cylinders 3 on the cylinder brackets 4 are all inclined. The fixing seats on the cylinder brackets 4 are set at different heights. The rear part of the cylinder 3 is fixed by the high fixing seat, and the front part of the cylinder 3 near the piston section is fixed by the low fixing seat.

[0020] The anti-jamming jaw slide valve described in this utility model is installed at the lower part of the raw coal bunker of the coal feeder to control the entry of raw coal into the feeder. When feeding, the valve plate 10 needs to be opened to expose the feeding port at the bottom of the outer shell 2. The opening principle of the valve plate 10 is as follows: the piston rod of the hydraulic cylinder 3 retracts, pulling the lower end of the hinge plate 5 to rotate obliquely upward. Since the upper end of the hinge plate 5 is fixedly connected to the rotating shaft A7, the hinge plate 5 drives the rotating shaft A7 to rotate. Because the fixing ring 6 is fixedly connected to the rotating shaft A7, the rotation of the rotating shaft A7 drives the sector plate A9, valve plate 10 and sector plate B11 to open outward, and the material falls into the feeding port. When it is necessary to close the valve plate 10, the piston rod of the hydraulic cylinder 3 extends, driving the lower end of the hinge plate 5 to rotate downward, thereby driving the two sets of symmetrical valve assemblies on the left and right to move inward simultaneously until they are closed.

[0021] The parts of this utility model not described in detail are existing technologies.

[0022] The embodiments selected herein for the purpose of disclosing the utility model are currently considered suitable; however, it should be understood that the present invention is intended to include all variations and modifications of the embodiments that fall within the scope of the present concept and utility model.

Claims

1. A jaw slide valve with anti-jamming capability, comprising an inner housing, an outer housing, a valve plate assembly, and a drive assembly disposed on one side of the outer housing; characterized in that: The valve plate assembly is disposed in the gap between the inner shell and the outer shell. The valve plate assembly includes two sets symmetrically arranged on the left and right sides. Each set includes a sector plate A, a valve plate, and a sector plate B. The valve plate is set as an arc plate and is located outside the lower opening of the inner shell. Sector plates A and B are fixed on the upper parts of the two sides of the arc plate respectively. Sector plates A and B are located on the outer sides of the inner shell respectively. A fixing ring is fixed at the upper end of sector plates A and B. A rotating shaft A is connected between the fixing ring on the upper part of sector plate A and the drive assembly. The drive assembly is provided in two sets, symmetrically arranged on the left and right sides of one side of the outer shell. Each set includes a bearing seat, a hinge plate, a hydraulic cylinder, and a hydraulic cylinder bracket. The bearing seat is fixed on the outer side of one side of the outer shell. The outer end of the rotating shaft A is rotatably connected to the bearing seat and then fixedly connected to the upper end of the hinge plate. The hydraulic cylinder is fixed by the hydraulic cylinder bracket, and the piston end is hinged to the lower end of the hinge plate.

2. The anti-jamming jaw slide valve according to claim 1, characterized in that: The outer shell includes an integrally formed upper square cavity and a lower conical cavity. The inner shell is located inside the outer shell and is placed at the upper opening of the outer shell through an extended folded edge at the upper port. A discharge port is provided at the bottom of the lower conical cavity of the outer shell.

3. The anti-jamming jaw slide valve according to claim 1, characterized in that: The inner shell is designed as a square cavity with through openings at both the top and bottom. Two valve plates are located outside the bottom of the inner shell and form a seal with the lower opening of the inner shell.

4. The anti-jamming jaw slide valve according to claim 1, characterized in that: The inner end of the rotating shaft A is rotatably connected to the bearing in the through hole on the right side of the inner housing, and the retaining ring is fixedly connected to the rotating shaft A.

5. The anti-jamming jaw slide valve according to claim 1, characterized in that: The inner end of the rotating shaft B, located in the upper fixing ring of the sector plate B, is rotatably connected to the bearing in the through hole on the left side of the inner housing, and the fixing ring is fixedly connected to the rotating shaft B. The outer end of the rotating shaft B does not contact the inner wall of the outer housing.

6. The anti-jamming jaw slide valve according to claim 1, characterized in that: The two cylinder brackets are symmetrically fixed on the outer wall of the outer casing.

Images