A new type of pressure casting pot

Abstract

A new type of pressure casting pot, including pot body and its adaptation pot cover, pot body and pot cover are equipped with flange at the joint, the left side or right side of pot cover is hinged with pot body through hinged structure, the upper and lower sides of pot body are symmetrically equipped with locking unit, locking unit includes hook plate piece and telescopic device, one side of hook plate piece can be hooked in the flange outside of joint pot cover, the other side is connected with telescopic device, the flanges of pot body and pot cover are all provided with corresponding multiple connecting holes, hook plate piece is equipped with connecting rod passing through one of connecting holes, the end of connecting rod near telescopic device is detachably connected with hook plate piece.The locking unit of the utility model is symmetrical up and down, can provide uniform locking force, the hook head is responsible for direct bearing and hooking, the L-shaped plate is responsible for force arm conversion and connection, so that the horizontal thrust from the telescopic device can be effectively converted into the vertical force of the hooking flange, two locking devices can act synchronously, it is convenient to open the pot cover slowly at the same time, and the eccentric wear and tear phenomenon of sealing ring is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pressure casting tank technology, specifically a novel pressure casting tank. Background Technology

[0002] In the manufacturing process of electrical equipment such as transformers and reactors, vacuum pressure casting is one of the key processes, and the sealing performance and opening / closing stability of its core equipment, the vacuum pressure casting tank, are of paramount importance. Currently, existing vacuum pressure casting tanks typically employ a structure where one side is hinged and the other side's lid is controlled by a single electric actuator. The end of the electric actuator is connected to the side of the lid via a connector. By controlling the extension and retraction of this electric actuator, the lid is slowly pushed or pulled away from or towards the tank body, thus opening or closing. This slow, electrically controlled opening prevents residual pressure inside the tank from causing the casting liquid to splash, creating safety hazards and wasting materials.

[0003] However, the existing technology that relies solely on a single-sided electric actuator has significant drawbacks. First, because the driving force is applied only to one side of the can lid, the clamping force on the can lid is unevenly distributed between the driving side and the hinge side during locking and sealing. This results in uneven circumferential force on the can lid sealing ring, which easily creates a weak point in the seal on the hinge side where the clamping force is smaller, thus affecting the overall sealing reliability and easily causing leakage. Second, single-point driving causes the can lid to twist and wobble, which not only causes the electric actuator and its connecting parts to bear additional bending moments and are prone to overload damage, but this unstable movement also exacerbates the uneven wear of the sealing ring and shortens the service life of the equipment. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides a novel pressure casting tank.

[0005] The technical solution of this utility model is as follows: A novel pressure casting tank includes a tank body and a matching tank cover. Both the tank body and the tank cover are provided with flanges at the connection. The left or right side of the tank cover is hinged to the tank body via a hinge structure. The upper and lower sides of the tank body are symmetrically provided with locking units. The locking unit includes a hook plate and a telescopic device. The telescopic device is set on the outer wall of the tank body, and its axis is parallel to the axis of the tank body. One side of the hook plate can hook onto the outside of the flange of the tank cover at the connection, and the other side is connected to the protruding end of the telescopic device through a connector. The position of the hook plate is adjustable along the axis of the tank body. Both the tank body and the tank cover flanges are provided with multiple corresponding connection holes. The hook plate is provided with a connecting rod that passes through one of the connection holes. The end of the connecting rod near the telescopic device is detachably connected to the hook plate.

[0006] The hook plate component has the following specific structure: it includes a hook head and an L-shaped plate. One end of the hook head can be hooked onto the outer side of the flange of the can lid. One end of the L-shaped plate is connected to the hook head, and the other end is connected to the telescopic device.

[0007] Furthermore, the hook head includes a first arc plate and a second arc plate with the same curvature and detachably connected. The width of the second arc plate is smaller than the width of the first arc plate. The first arc plate can abut against the outer side of the flange of the can lid. The second arc plate is located on the outer side of the flange of the can body and the can lid. One end of the connecting rod is connected to the first arc plate.

[0008] The L-shaped plate has a specific structure, consisting of a long plate and a short plate. The short plate is located near the telescopic device, and one end of the long plate is connected to the second arc-shaped plate.

[0009] Preferably, the second arc-shaped plate is provided with a through hole adapted to the connecting rod, and the end of the connecting rod away from the first arc-shaped plate is detachably connected to the second arc-shaped plate by a fastener.

[0010] The connection structure between the connecting rod and the second arc-shaped plate consists of fasteners including a first fastening nut and a second fastening nut. The end of the connecting rod furthest from the first arc-shaped plate has an external threaded section. The first and second fastening nuts are threadedly connected to the connecting rod and are located on opposite sides of the second arc-shaped plate. This double-nut clamping method ensures a reliable connection and effectively prevents the connecting rod from loosening during equipment vibration, guaranteeing long-term stability of the locked state.

[0011] Preferably, the vertical plane containing the axis of the connecting rod is perpendicular to the horizontal plane containing the axis of the tank.

[0012] Furthermore, the curvature of the first arc plate is adapted to the curvature of the flange.

[0013] The first and second arc-shaped plates are detachably connected in the following manner: the second arc-shaped plate is located on one side of the upper part of the first arc-shaped plate, and the first and second arc-shaped plates are connected by multiple fastening bolts, which are symmetrically distributed on both sides of the L-shaped plate.

[0014] To facilitate the installation of the lower locking unit and prevent interference with the support legs, multiple support legs are provided along the axial direction of the lower part of the tank. An installation port is opened in the middle of the support leg near the locking unit, and the lower locking unit is installed on the installation port.

[0015] The beneficial effects of this utility model are as follows: The symmetrical locking units provide uniform locking force, ensuring the tank lid's airtightness and preventing pressure leakage. The telescopic device (such as a hydraulic cylinder or pneumatic cylinder) has its axis arranged parallel to the tank body, resulting in a compact structure. The hook head is responsible for direct force bearing and hooking, while the L-shaped plate is responsible for lever arm conversion and connection. This allows the horizontal thrust from the telescopic device to be effectively converted into the vertical force for hooking the flange. The two locking devices can operate synchronously, facilitating the simultaneous and slow opening of the tank lid, reducing uneven wear of the sealing ring, and improving the equipment's service life. The adjustable position of the hook plate greatly enhances the adaptability of the device to flanges of different thicknesses or slight differences, improving its versatility and fault tolerance. The connecting rod passes through the connecting hole on the flange, directly and accurately transmitting the hooking force of the hook plate to the flange connection, avoiding deformation of the flange due to uneven force, and significantly improving the reliability of locking and sealing effect. The hook head adopts a split arc plate design. The first arc plate, as the main load-bearing surface, fits in close contact with the outer side of the flange over a large area, increasing the contact area, reducing pressure, and avoiding damage to the flange surface. The second arc plate is narrower and serves as a positioning and connecting element, preventing interference with the tank flange. The detachable connection facilitates individual replacement of parts based on wear conditions. Attached Figure Description

[0016] In the attached diagram: Figure 1 This is a structural diagram; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a top view; Figure 4 for Figure 3 A schematic diagram of the AA-direction cross-section structure; Figure 5 for Figure 4 Enlarged structural diagram at point B; Figure 6 This is a front view; The components represented by the various reference numerals in the diagram are: 1. Tank body; 2. Tank cover; 3. Hook plate; 301. Hook head; 3011. First arc plate; 3012. Second arc plate; 302. L-shaped plate; 3021. Long plate; 3022. Short plate; 4. Telescopic device; 5. Flange; 501. Connecting hole; 6. Connecting rod; 7. First fastening nut; 8. Second fastening nut; 9. Fastening bolt; 10. Support leg; 1001. Mounting port. Detailed Implementation

[0017] See Figure 1 , Figure 3 and Figure 6As shown, a novel pressure casting tank includes a tank body 1 and a tank cover 2 adapted thereto. Both the tank body 1 and the tank cover 2 are provided with flanges 5 at the connection point. The left or right side of the tank cover 2 is hinged to the tank body 1 through a hinge structure. Locking units are symmetrically provided on the upper and lower sides of the tank body 1. The locking unit includes a hook plate 3 and a telescopic device 4. The telescopic device 4 is provided on the outer wall of the tank body 1, and its axial direction is parallel to the axial direction of the tank body 1. One side of the hook plate 3 can hook onto the outside of the flange 5 of the tank cover 2 at the connection point, and the other side is connected to the protruding end of the telescopic device 4 through a connector. The position of the hook plate 3 along the axial direction of the tank body 1 is adjustable.

[0018] See Figure 4 and Figure 5 As shown, the flanges 5 of the tank body 1 and the tank cover 2 are provided with multiple corresponding connection holes 501. The hook plate 3 is provided with a connecting rod 6 passing through one of the connection holes 501. The end of the connecting rod 6 near the telescopic device 4 is detachably connected to the hook plate 3.

[0019] The vertical plane containing the axis of the connecting rod 6 is perpendicular to the horizontal plane containing the axis of the tank body 1. The vertical plane containing the axes of the two connecting rods 6 is perpendicular to the horizontal plane where the hinge of the lid 2 and the tank body 1 is located. This makes it easy to lock the lid 2 onto the tank body 1 from multiple directions, and the force is applied more evenly. This makes it easy to open or close the lid 2 stably, and also reduces the phenomenon of uneven wear on the sealing strip between the lid 2 and the tank body 1.

[0020] See Figure 2 , Figure 3 and Figure 5 As shown, the hook plate component 3 has the following specific structure: it includes a hook head 301 and an L-shaped plate 302. One end of the hook head 301 can hook onto the outer side of the flange 5 of the can lid 2. One end of the L-shaped plate 302 is connected to the hook head 301, and the other end is connected to the telescopic device 4. The hook head 301 includes a first arc-shaped plate 3011 and a second arc-shaped plate 3012 with the same curvature and detachably connected. The curvature of the first arc-shaped plate 3011 matches the curvature of the flange 5. The width of the second arc-shaped plate 3012 is smaller than the width of the first arc-shaped plate 3011. The first arc-shaped plate 3011 can abut against the outer side of the flange 5 of the can lid 2. The second arc-shaped plate 3012 is located on the outer side of the outer circular surface of the flange 5 of the can body 1 and the can lid 2. One end of the connecting rod 6 is connected to the first arc-shaped plate 3011.

[0021] The first arc-shaped plate 3011, serving as the main load-bearing surface, fits extensively against the outer surface of the flange 5, increasing the contact area, reducing pressure, and preventing damage to the flange 5 surface. The second arc-shaped plate 3012, with its smaller width, serves for positioning and connection, preventing interference with the flange 5 of the tank body 1. Its detachable connection facilitates individual replacement of parts based on wear conditions. Furthermore, by slowly opening the tank cover 2 to create a small gap between the cover and the tank body 1, the first arc-shaped plate 3011 can be easily disassembled without affecting the subsequent full opening of the cover 2 as needed. When disassembling the first arc-shaped plate 3011, the telescopic device 4 can extend to its maximum stroke, maximizing the distance between the cover 2 and the tank body 1, preventing splashing of the casting liquid due to residual pressure inside the tank, and facilitating the disassembly of the first arc-shaped plate 3011.

[0022] The first arc plate 3011 and the second arc plate 3012 are detachably connected in the following manner: the second arc plate 3012 is located on the upper side of the first arc plate 3011, and the first arc plate 3011 and the second arc plate 3012 are connected by a plurality of fastening bolts 9, which are symmetrically distributed on both sides of the L-shaped plate 302.

[0023] The symmetrical locking units provide uniform locking force. The hook 301 is responsible for direct force bearing and hooking, while the L-shaped plate 302 is responsible for lever arm conversion and connection, so that the horizontal thrust from the telescopic device 4 can be effectively converted into the vertical force of the hook flange 5. The two locking devices can operate synchronously, which facilitates the simultaneous and slow opening of the can cover 2. The hook 301 is equipped with a first arc plate 3011 and a second arc plate 3012 with the same curvature and detachable connection, which facilitates the disassembly of the first arc plate 3011 after the can cover 2 is slowly opened. The can cover 2 is no longer limited and can be fully opened without affecting the use of the pressure casting tank and subsequent cleaning.

[0024] See Figure 2 As shown, the L-shaped plate 302 includes a long plate 3021 and a short plate 3022. The short plate 3022 is close to the side of the telescopic device 4. One end of the long plate 3021 is connected to the second arc-shaped plate 3012, and the other end is connected to the extended end of the telescopic device 4.

[0025] See Figure 5 As shown, the second arc-shaped plate 3012 has a through hole adapted to the connecting rod 6. The end of the connecting rod 6 away from the first arc-shaped plate 3011 is detachably connected to the second arc-shaped plate 3012 via fasteners. The fasteners include a first fastening nut 7 and a second fastening nut 8. The end of the connecting rod 6 away from the first arc-shaped plate 3011 has an external thread section. The first fastening nut 7 and the second fastening nut 8 are respectively threaded to the connecting rod 6 and are located on both sides of the second arc-shaped plate 3012. The double-nut clamping method ensures reliable connection and effectively prevents the connecting rod 6 from loosening during equipment vibration, ensuring the long-term stability of the locked state.

[0026] To facilitate the installation of the lower locking unit and prevent interference with the support leg 10, multiple support legs 10 are provided along the axial direction of the tank body 1. An installation port 1001 is provided in the middle of the support leg 10 near the locking unit, and the lower locking unit is installed on the installation port 1001.

Claims

1. A novel pressure casting tank, comprising a tank body (1) and a tank cover (2) adapted thereto, wherein the tank body (1) and the tank cover (2) are both provided with flanges (5) at the connection points, and the left or right side of the tank cover (2) is hinged to the tank body (1) via a hinge structure, characterized in that, The tank body (1) is symmetrically provided with locking units on the upper and lower sides. The locking unit includes a hook plate (3) and a telescopic device (4). The telescopic device (4) is set on the outer wall of the tank body (1) and its axial direction is parallel to the axial direction of the tank body (1). One side of the hook plate (3) can be hooked on the outside of the flange (5) of the tank cover (2) at the connection point, and the other side is connected to the protruding end of the telescopic device (4) through a connector. The position of the hook plate (3) along the axial direction of the tank body (1) is adjustable. The flanges (5) of the tank body (1) and the tank cover (2) are provided with multiple corresponding connection holes (501). The hook plate (3) is provided with a connecting rod (6) passing through one of the connection holes (501). The end of the connecting rod (6) near the telescopic device (4) is detachably connected to the hook plate (3).

2. The novel pressure casting tank according to claim 1, characterized in that, The hook plate (3) includes a hook head (301) and an L-shaped plate (302). One end of the hook head (301) can be hooked onto the outer side of the flange (5) of the can cover (2). One end of the L-shaped plate (302) is connected to the hook head (301), and the other end is connected to the telescopic device (4).

3. A novel pressure casting tank according to claim 2, characterized in that, The hook (301) includes a first arc plate (3011) and a second arc plate (3012) with the same curvature and detachably connected. The width of the second arc plate (3012) is smaller than the width of the first arc plate (3011). The first arc plate (3011) can abut against the outer side of the flange (5) of the can cover (2). The second arc plate (3012) is located on the outer side of the outer circle of the flange (5) of the can body (1) and the can cover (2). One end of the connecting rod (6) is connected to the first arc plate (3011).

4. A novel pressure casting tank according to claim 3, characterized in that, The L-shaped plate (302) includes a long plate (3021) and a short plate (3022). The short plate (3022) is located near the telescopic device (4), and one end of the long plate (3021) is connected to the second arc-shaped plate (3012).

5. A novel pressure casting tank according to claim 4, characterized in that, The second arc plate (3012) is provided with a through hole that is adapted to the connecting rod (6). The end of the connecting rod (6) away from the first arc plate (3011) is detachably connected to the second arc plate (3012) by fasteners.

6. A novel pressure casting tank according to claim 5, characterized in that, The fasteners include a first fastening nut (7) and a second fastening nut (8). The end of the connecting rod (6) away from the first arc plate (3011) is provided with an external thread section. The first fastening nut (7) and the second fastening nut (8) are threadedly connected to the connecting rod (6) respectively and are located on both sides of the second arc plate (3012).

7. A novel pressure casting tank according to claim 1, characterized in that, The vertical plane containing the axis of the connecting rod (6) is perpendicular to the horizontal plane containing the axis of the tank (1).

8. A novel pressure casting tank according to claim 3, characterized in that, The curvature of the first arc plate (3011) is adapted to the curvature of the flange (5).

9. A novel pressure casting tank according to claim 3, characterized in that, The second arc plate (3012) is located on one side of the upper part of the first arc plate (3011). The first arc plate (3011) and the second arc plate (3012) are connected by multiple fastening bolts (9). The multiple fastening bolts (9) are symmetrically distributed on both sides of the L-shaped plate (302).

10. A novel pressure casting tank according to claim 1, characterized in that, The tank body (1) has multiple support legs (10) along its axial direction below. An installation port (1001) is opened in the middle of the support leg (10) near the locking unit. The locking unit located below is set on the installation port (1001).

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