Powder apparatus with multiple seal structure

Abstract

The utility model discloses a kind of powder equipment with multiple sealing structure, including powder storage tank and the support frame installed below powder storage tank, the upper portion of powder storage tank is equipped with feed inlet and the lower portion is equipped with discharge port, feed inlet is hingedly connected with tank cover by hinge, two groups of tightening bolts are symmetrically inserted in the two sides of tank cover, two groups of threaded tubes are arranged in the two sides of feed inlet, threaded tube is fixed in the top of powder storage tank, threaded tube is screw joint with tightening bolt, feed inlet is provided with primary sealing assembly, primary sealing assembly includes side plate, transmission plate, pressure bar, pressure plate, floating ring and sealing ring, side plate is separately provided with two groups and is symmetrically fixed in the two sides of feed inlet, the middle portion of transmission plate is rotatably connected with side plate. The powder material storage tank feed inlet sealing structure designed in the utility model can realize the bidirectional sealing treatment to the feed inlet position, improve the sealing property of feed inlet and tank cover contact part.

Description

Technical Field

[0001] This utility model relates to the technical field of powder storage equipment, specifically a powder storage device with a multi-layer sealing structure. Background Technology

[0002] Powder is an aggregate of many small particles. Its common characteristics are: it has many discontinuous surfaces, a large specific surface area, and is composed of many small particles. Powder materials are a type of material. Due to the low weight of the particles, powder materials need to be stored in special powder storage tanks during daily storage to prevent the powder from being scattered.

[0003] However, existing powder storage tanks have the following problems in the daily storage of powder materials: Powder is introduced and discharged through the inlet and outlet, respectively. The outlet is equipped with a valve for efficient opening and closing of the powder, while the inlet is often sealed with a cover. To improve the sealing performance of the inlet, a sealing ring is usually installed on the cover. However, in actual use, relying solely on the sealing ring leads to aging of the ring over time, causing a decrease in the sealing performance of the inlet. There is a lack of effective means to seal the inlet of powder storage tanks efficiently. Therefore, it is necessary to design corresponding technical solutions to address these problems. Utility Model Content

[0004] The purpose of this utility model is to provide a powder equipment with a multi-seal structure, which solves the problem that the powder is guided through the inlet and outlet respectively. The outlet is equipped with a valve to achieve efficient opening and closing of the powder. However, the inlet is often sealed by a cover. In order to improve the sealing performance of the inlet, a sealing ring is usually equipped on the cover. However, in actual use, the sealing performance of the inlet decreases over time due to the aging of the sealing ring. There is a lack of a means to efficiently seal the inlet of the powder storage tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A powder processing equipment with a multi-layer sealing structure, comprising a powder storage tank and a support frame installed below the powder storage tank. The powder storage tank has an inlet at the top and a outlet at the bottom. A tank cover is movably connected to the inlet via a hinge. Two sets of tightening bolts are symmetrically inserted on both sides of the tank cover. Two sets of threaded pipes are provided on both sides of the inlet. The threaded pipes are fixed to the top of the powder storage tank and threadedly connected to the tightening bolts. A primary sealing assembly is provided at the inlet. The primary sealing assembly includes a side plate, a transmission plate, a pressure rod, a pressure plate, a floating ring, and a sealing ring. Two sets of side plates are symmetrically fixed on both sides of the inlet. The middle part of the moving plate is rotatably connected to the side plate. The pressure rod is connected to the left end of the two sets of transmission plates. The right end of the two sets of transmission plates is in contact with the lower edge of the floating ring. The floating ring is fitted into the feed inlet. The sealing ring is located above the floating ring. The edge of the can cover is fixed with a pressure ring. The pressure plate is fixed to the edge of the pressure ring and works in conjunction with the pressure rod. The can cover is provided with a secondary sealing assembly. The secondary sealing assembly includes a bolt and a pressure plate fixed inside the bolt. The bolt thread passes through the middle of the can cover. The inner end of the bolt is connected to the pressure plate. An air ring is fixed inside the pressure plate. The air ring is attached to the inner wall of the can cover and is connected to a vent pipe on one side. The vent pipe is connected to a sealing gasket. The sealing gasket is located on the inner ring of the can cover.

[0006] In a preferred embodiment of this utility model, the transmission plate has an arc-shaped structure and the height of the middle part is lower than the height of the two ends.

[0007] In a preferred embodiment of this utility model, the lower end of the pressure plate is provided with a notch, the diameter of which is larger than the diameter of the pressure rod.

[0008] In a preferred embodiment of this utility model, the sealing ring has a ring-shaped structure and is made of rubber material. The surface of the sealing ring is machined with several sets of extrusion grooves, which are distributed in a stacked manner. The sealing ring and the pressure ring are distributed correspondingly and used in conjunction.

[0009] In a preferred embodiment of this invention, a rotating disk is fixed to the outer end of the bolt, and the rotating disk is located on the outside of the can lid.

[0010] In a preferred embodiment of this invention, the sealing gasket has a hollow annular structure and its surface is processed into a layered structure.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model improves the sealing structure of the feed inlet of the powder material storage tank. A primary sealing component and a secondary sealing component are provided at the feed inlet position. The primary sealing component and the secondary sealing component can respectively perform bidirectional sealing treatment on the inner and outer sides of the contact part between the cover and the feed inlet, which greatly improves the sealing effect of the feed inlet.

[0013] 2. The powder material storage tank inlet sealing structure designed in this utility model can achieve bidirectional sealing treatment of the inlet position, and improve the sealing performance of the inlet and the tank cover contact part. Attached Figure Description

[0014] Figure 1 This is an overall structural diagram of the present invention;

[0015] Figure 2 This is a structural diagram of the primary sealing assembly and the secondary sealing assembly described in this utility model;

[0016] Figure 3 This is a structural diagram of the internal structure of the can lid described in this utility model.

[0017] In the diagram: 1. Powder storage tank; 2. Support frame; 3. Inlet; 4. Outlet; 5. Tank cover; 6. Tightening bolt; 7. Threaded pipe; 8. Primary sealing assembly; 9. Side plate; 10. Transmission plate; 11. Pressure rod; 12. Pressure plate; 13. Floating ring; 14. Sealing ring; 15. Pressure ring; 16. Secondary sealing assembly; 17. Bolt; 18. Pressure plate; 19. Air ring; 20. Air guide pipe; 21. Sealing air cushion; 22. Notch; 23. Extrusion groove; 24. Rotating disc. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-3This utility model provides a technical solution: a powder equipment with a multi-seal structure, including a powder storage tank 1 and a support frame 2 installed below the powder storage tank 1. The powder storage tank 1 has an inlet 3 at the top and a discharge port 4 at the bottom. The discharge port 4 is equipped with a valve. A tank cover 5 is movably connected to the inlet 3 via a hinge. Two sets of tightening bolts 6 are symmetrically inserted on both sides of the tank cover 5. Two sets of threaded pipes 7 are provided on both sides of the inlet 3. The threaded pipes 7 are fixed to the top of the powder storage tank 1 and are threadedly connected to the tightening bolts 6. A primary sealing assembly 8 is provided at the inlet 3. The primary sealing assembly 8 includes a side plate 9, a transmission plate 10, a pressure rod 11, a pressure plate 12, a floating ring 13, and a sealing ring 14. The side plates 9 are divided into two sets and symmetrically fixed on both sides of the inlet 3. The middle part of the transmission plate 10 is connected to the side plate 9. Plate 9 is rotatably connected, pressure rod 11 is connected to the left end of two sets of transmission plates 10, the right end of two sets of transmission plates 10 is in contact with the lower edge of floating ring 13, floating ring 13 is fitted into feed inlet 3, sealing ring 14 is located above floating ring 13, pressure ring 15 is fixed to the edge of tank cover 5, pressure plate 12 is fixed to the edge of pressure ring 15 and used in conjunction with pressure rod 11, secondary sealing assembly 16 is provided on tank cover 5, secondary sealing assembly 16 includes bolt 17 and pressure plate 18 fixed inside bolt 17, bolt 17 threaded through the middle of tank cover 5, inner end of bolt 17 is connected to pressure plate 18, air ring 19 is fixed inside pressure plate 18, air ring 19 is attached to the inner wall of tank cover 5 and one side is connected to air guide pipe 20, air guide pipe 20 is connected to sealing air pad 21, sealing air pad 21 is located in the inner ring of tank cover 5.

[0020] Further improvements, such as Figure 2 As shown, the transmission plate 10 has an arc-shaped structure and the height in the middle is lower than the height at both ends.

[0021] Further improvements, such as Figure 2 As shown, a notch 22 is provided at the lower end of the pressure plate 12. The diameter of the notch 22 is larger than the diameter of the pressure rod 11, so that the pressure plate 12 can apply pressure to the pressure rod 11.

[0022] Further improvements, such as Figure 2 As shown, the sealing ring 14 has a ring-shaped structure and is made of rubber. The surface of the sealing ring 14 is machined with several sets of extrusion grooves 23, which are distributed in a stacked manner. The sealing ring 14 and the pressure ring 15 are distributed accordingly and used together. The sealing ring 14 contacts the pressure ring 15 of the can cover 5 to achieve the purpose of sealing the outer ring of the contact part between the feed inlet 3 and the can cover 5.

[0023] Further improvements, such as Figure 2As shown, a rotating disk 24 is fixed to the outer end of the bolt 17. The rotating disk 24 is located on the outside of the can cover 5. The operator adjusts the position of the bolt 17 by applying force to the rotating disk 24, thereby adjusting the position of the pressure plate 18. The pressure plate 18 squeezes the air ring 19 and introduces the gas through the air guide pipe 20 into the sealing air pad 21, thereby achieving the purpose of expanding and sealing the inner ring of the contact part between the feed port 3 and the can cover 5.

[0024] Specifically, the sealing gas pad 21 has a hollow ring structure and its surface is processed into a layered structure. This design facilitates the introduction of gas into the sealing gas pad 21 to expand the sealing gas pad 21, thereby achieving contact sealing treatment of the contact area between the feed inlet 3 and the can cover 5.

[0025] In use: When it is necessary to seal the inlet 3 of the powder storage tank 1, the tank cover 5 is flipped over and placed over the inlet 3. During the flipping and pressing of the tank cover 5, the pressure plate 12 presses down on the pressure rod 11. The pressure rod 11 is forced to move down and drives the transmission plate 10 to rotate around the side plate 9. The inner end of the transmission plate 10 pushes the floating ring 13 to move up and pushes the sealing ring 14 to act on the pressure ring 15. The sealing ring 14 squeezes the pressure ring 15 to achieve the purpose of sealing the outer ring of the tank cover 5. Then, the tightening bolt 6 is threaded into the threaded tube 7 to achieve the purpose of fixing. After adjustment, the operator holds the rotating disc 24 and rotates it to drive the bolt 17 to rotate synchronously and move outward. During the outward movement, the pressure plate 18 squeezes the air ring 19 to introduce the gas through the air guide pipe 20 into the sealing air pad 21, thereby achieving the purpose of expanding and sealing the inner ring of the contact part between the inlet 3 and the tank cover 5. This achieves the purpose of double sealing inside and outside the tank cover 5 and the inlet 3 under the closed state, improving the sealing effect of the inlet 3.

[0026] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder processing equipment with a multi-layer sealing structure, characterized in that: The system includes a powder storage tank (1) and a support frame (2) installed below the powder storage tank (1). The powder storage tank (1) has a feed inlet (3) at the top and a discharge outlet (4) at the bottom. A tank cover (5) is movably connected to the feed inlet (3) via a hinge. Two sets of tightening bolts (6) are symmetrically inserted on both sides of the tank cover (5). Two sets of threaded pipes (7) are provided on both sides of the feed inlet (3). The threaded pipes (7) are fixed to the top of the powder storage tank (1). (7) It is threadedly connected to the tightening bolt (6). A primary sealing assembly (8) is provided at the feed inlet (3). The primary sealing assembly (8) includes a side plate (9), a transmission plate (10), a pressure rod (11), a pressure plate (12), a floating ring (13), and a sealing ring (14). The side plate (9) is divided into two sets and symmetrically fixed on both sides of the feed inlet (3). The middle part of the transmission plate (10) is rotatably connected to the side plate (9). The pressure rod (11) is connected to the two sets of transmission plates (10). The left ends are connected, and the right ends of the two sets of transmission plates (10) are in contact with the lower edge of the floating ring (13). The floating ring (13) is fitted into the feed inlet (3). The sealing ring (14) is located above the floating ring (13). The edge of the tank cover (5) is fixed with a pressure ring (15). The pressure plate (12) is fixed to the edge of the pressure ring (15) and is used in conjunction with the pressure rod (11). The tank cover (5) is provided with a secondary sealing assembly (16). The secondary sealing assembly (16) includes Bolt (17) and pressure plate (18) fixed inside the bolt (17). The bolt (17) is threaded through the middle of the can cover (5). The inner end of the bolt (17) is connected to the pressure plate (18). An air ring (19) is fixed inside the pressure plate (18). The air ring (19) is attached to the inner wall of the can cover (5) and a vent pipe (20) is connected to one side. The vent pipe (20) is connected to a sealing gasket (21). The sealing gasket (21) is located in the inner ring of the can cover (5).

2. The powder apparatus with multiple seal structure according to claim 1, wherein: The transmission plate (10) has an arc-shaped structure and the height in the middle is lower than the height at both ends.

3. The powder apparatus with multiple seal structure according to claim 1, wherein: The lower end of the pressure plate (12) is provided with a notch (22), the diameter of which is larger than the diameter of the pressure rod (11).

4. The powder apparatus with multiple seal structure according to claim 1, wherein: The sealing ring (14) has a ring-shaped structure and is made of rubber material. The surface of the sealing ring (14) is formed with several sets of extrusion grooves (23). The several sets of extrusion grooves (23) are distributed in a stacked manner. The sealing ring (14) and the pressure ring (15) are distributed correspondingly and used in conjunction.

5. The powder apparatus with multiple seal structure according to claim 1, wherein: The outer end of the bolt (17) is fixed with a rotating disk (24), which is located on the outside of the can lid (5).

6. The powder apparatus with multiple seal structure of claim 1, wherein: The sealing air cushion (21) has a hollow ring structure and its surface is processed into a layered structure.

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