A vacuum pressure impregnation tank

Abstract

A kind of vacuum pressure paint tank, including tank body and the upper cover matched with it, also include rocker arm, first hinged support is equipped on the outside of tank body upper part, one end of rocker arm is hinged with first hinged support by first rotating shaft, the other end is hinged with the middle part of upper cover, first hinged support inner side is also rotationally provided with first lifting device hinged with rocker arm;First rotating shaft is spaced apart from the end of rocker arm away from upper cover, and the end of rocker arm away from upper cover is provided with limiting hole, first hinged support is provided with through hole corresponding with limiting hole, locking assembly is provided on first hinged support and matched with through hole;Second lifting device is provided on the outside of first hinged support, and the extension end of second lifting device is hinged with the end of rocker arm away from upper cover by connecting assembly.The utility model compared with traditional single hydraulic cylinder structure, driving force distribution is more uniform, effectively solve the single point drive easy to jam problem, rocker arm mechanism decomposes starting operation into multi-stage movement, reduce the work load of single lifting device.

Description

Technical Field

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

[0002] Traditional impregnation tanks typically employ a single-sided hinged lid structure, with opening and closing driven by a hydraulic cylinder. Specifically, one side of the lid is hinged to the tank body, while the other side connects to a hydraulic cylinder. The extension and retraction of the hydraulic cylinder causes the lid to rotate around the hinge axis. When the hydraulic cylinder extends, the lid opens upwards for easy loading and unloading of workpieces; when the hydraulic cylinder retracts, the lid closes to achieve a seal. To prevent accidental lid falls due to hydraulic system failure, a locking pin mechanism is usually installed in the fully open position.

[0003] However, in order to fully open the cover, the hydraulic cylinder generally needs to reach its maximum stroke. The traditional single hydraulic cylinder setting position is prone to jamming. Moreover, when the cover is opened upwards, if there is pressure fluctuation or slight leakage in the hydraulic system, it is very easy for the hydraulic cylinder to move downwards, causing the anti-fall pin bearing that has been inserted into the cover positioning hole to be subjected to additional lateral force, resulting in difficulty in inserting or removing the pin or even jamming, affecting the closing of the cover. Utility Model Content

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

[0005] The technical solution of this utility model is as follows: A vacuum pressure impregnation tank includes a tank body and a top cover adapted thereto, and also includes a rocker arm. A first hinge bracket is provided on the upper outer side of the tank body. One end of the rocker arm is hinged to the first hinge bracket via a first rotating shaft, and the other end is hinged to the middle of the top cover. A first lifting device is also rotatably provided on the inner side of the first hinge bracket and hinged to the rocker arm. The first rotating shaft is spaced apart from the end of the rocker arm away from the top cover, and a limit hole is provided at the end of the rocker arm away from the top cover. The first hinge bracket is provided with a through hole corresponding to the limit hole, and a locking component adapted to the through hole is provided on the first hinge bracket. A second lifting device is provided on the outside of the first hinge bracket. The extended end of the second lifting device is hinged to the end of the rocker arm away from the top cover through a connecting component. The bottom of the second lifting device is hinged to the lower part of the first hinge bracket. The vertical planes where the first lifting device and the second lifting device are located are in the same plane.

[0006] In order to enable the rocker arm to rotate to a vertical position under the drive of the first lifting device, so that the top cover can be opened smoothly, and to avoid the second lifting device being positioned too close to the first lifting device, which would prevent the rocker arm from rotating normally, the vertical plane where the hinge point of the second lifting device and the first hinge bracket is located is located outside the vertical plane where the first rotating shaft is located, so that the first lifting device and the second lifting device do not interfere with each other when working.

[0007] The specific structure of the locking assembly is as follows: the locking assembly includes a support beam of the support plate of the vertical first hinge bracket, a telescopic member is provided on the support beam, and a pin is provided at the protruding end of the telescopic member. The axes of the pin and the telescopic member are both parallel to the axis of the through hole.

[0008] The connection assembly is structured as follows: the connection assembly includes an ear plate and a second hinge bracket. The ear plate is located at the middle position on the upper surface of the rocker arm at the end away from the upper cover. One end of the second hinge bracket is rotatably connected to the ear plate, and the other end extends outward from the rocker arm and is hinged to the extended end of the second lifting device.

[0009] The second hinge bracket is used to connect the rocker arm and the second lifting device. The structure of the second hinge bracket is as follows: the second hinge bracket includes two symmetrically arranged second support plates. The ends of the two second connecting plates away from the ear plates are connected by a second rotating shaft. A connecting block is rotatably provided on the second rotating shaft. The connecting block is located on the outside of the rocker arm and is connected to the extended end of the second lifting device.

[0010] Preferably, the inner diameter of the limiting hole is 0.2-1 cm larger than the inner diameter of the through hole.

[0011] Furthermore, the first hinged bracket includes two symmetrically arranged first support plates, the lower parts of the two first support plates are connected by a base plate, one side of the two first support plates is connected to the outer wall of the tank, the bottom of the first lifting device is hinged to the inner side above the base plate, and the bottom of the second lifting device is hinged to the outer side below the base plate.

[0012] To prevent the top cover from wobbling when opened, the rocker arm is detachably connected to the upper surface of the top cover via a fixing component.

[0013] The specific structure of the fixing component is as follows: the fixing component includes a fixing plate located above the rocker arm and two threaded rods. The fixing plate is arranged along the width direction of the rocker arm, and its two ends protrude outside the rocker arm. Guide plates are provided on both sides of the rocker arm along its width direction. The threaded rods are threadedly connected to the guide plates. The two threaded rods pass through the fixing plate and are threadedly connected to the guide plates respectively. The bottom end of the threaded rod can abut against the upper surface of the top cover.

[0014] The beneficial effects of this utility model are as follows: The first and second lifting devices work together to achieve smooth opening and closing of the top cover through the rocker arm mechanism. Compared with the traditional single hydraulic cylinder structure, the driving force is more evenly distributed, effectively solving the problem of easy jamming in single-point drive. The rocker arm mechanism decomposes the opening action into multi-stage motion, reducing the workload of a single lifting device. The first lifting device and the second lifting device are located on both sides of the first rotating shaft. The first lifting device is responsible for the initial lifting action, and the second lifting device provides auxiliary thrust. It can lift the rocker arm at different positions. The double protection ensures that the opening process of the top cover is smooth and reliable, which is conducive to the rocker arm rotating to a vertical position. It is convenient to pass the pin through the through hole and the limiting hole in sequence to limit the rocker arm. In addition, the two lifting devices have different planar layouts and hinge point positions to avoid motion interference. The limiting hole adopts an enlarged inner diameter design (0.2-1cm larger than the through hole) to provide tolerance space for pressure fluctuations in the hydraulic system; The rocker arm and the top cover are connected by an adjustable fixing component, and the threaded rod can finely adjust the clamping force to effectively suppress shaking when opening the cover. Attached Figure Description

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the first three-dimensional structure; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 for Figure 1 Enlarged structural diagram at point B; Figure 4 This is a front view; Figure 5 This is a top view; Figure 6 This is a schematic diagram of the second three-dimensional structure; The components represented by the various reference numerals in the diagram are: 1. Tank body; 2. Top cover; 3. Rocker arm; 301. Limiting hole; 4. First hinge bracket; 401. First support plate; 402. Base plate; 403. Through hole; 5. First lifting device; 6. Second lifting device; 7. Locking assembly; 701. Support beam; 702. Telescopic component; 703. Pin; 8. Connecting assembly; 801. Ear plate; 802. Second rotating shaft; 803. Second support plate; 804. Connecting block; 805. Third rotating shaft; 9. Fixing assembly; 901. Fixing plate; 902. Threaded rod; 903. Guide plate. Detailed Implementation

[0016] See Figure 1 and Figure 6 As shown, a vacuum pressure impregnation tank includes a tank body 1 and a matching upper cover 2, and also includes a rocker arm 3. A first hinge bracket 4 is provided on the upper outer side of the tank body 1. One end of the rocker arm 3 is hinged to the first hinge bracket 4 through a first rotating shaft, and the other end is hinged to the middle of the upper cover 2. A first lifting device 5 is also rotatably provided on the inner side of the first hinge bracket 4 and hinged to the rocker arm 3.

[0017] See Figure 2 , Figure 4 and Figure 5 As shown, the first rotating shaft is spaced apart from the end of the rocker arm 3 away from the upper cover 2, and a limiting hole 301 is provided at the end of the rocker arm 3 away from the upper cover 2. The limiting hole 301 is a through hole, and it is provided along the width direction of the rocker arm 3. The axis of the limiting hole 301 is perpendicular to the length direction of the rocker arm 3. The first hinge bracket 4 is provided with a through hole 403 corresponding to the limiting hole 301. The axis of the through hole 403 is parallel to the axis of the limiting hole 301. The first hinge bracket 4 is provided with a locking assembly 7 adapted to the through hole 403. The locking assembly 7 includes a support beam 701 perpendicular to the support plate of the first hinge bracket 4. The support beam 701 is provided with a telescopic member 702. The telescopic member 702 can be a telescopic rod with a locking function, or a small hydraulic cylinder or electric push rod, which can manually or automatically push the pin 703 into the through hole 403 and the limiting hole 301. The extended end of the telescopic component 702 is provided with a pin 703, and the axes of both the pin 703 and the telescopic component 702 are parallel to the axis of the through hole 403. The inner diameter of the limiting hole 301 is 0.2-1 cm larger than the inner diameter of the through hole 403, providing tolerance space for pressure fluctuations in the hydraulic system.

[0018] A second lifting device 6 is provided on the outer side of the first hinge bracket 4. The extended end of the second lifting device 6 is hinged to the end of the rocker arm 3 away from the upper cover 2 via a connecting assembly 8. The bottom of the second lifting device 6 is hinged to the lower part of the first hinge bracket 4. The vertical planes of the first lifting device 5 and the second lifting device 6 are in the same plane. The connecting assembly 8 includes an ear plate 801 and a second hinge bracket. The ear plate 801 is located at the middle position of the upper surface of the rocker arm 3 away from the upper cover 2. One end of the second hinge bracket is rotatably connected to the ear plate 801, and the other end extends outward from the rocker arm 3 and is hinged to the extended end of the second lifting device 6.

[0019] Both the first lifting device 5 and the second lifting device 6 can be hydraulic cylinders, and are located on opposite sides of the first rotating shaft. The first lifting device 5 is responsible for the initial lifting action, while the second lifting device 6 provides auxiliary thrust, enabling it to lift the rocker arm 3 at different positions. This dual protection ensures a smooth and reliable opening process for the upper cover 2, facilitating the rotation of the rocker arm 3 to a vertical position. This allows the pin 703 to pass sequentially through the through hole 403 and the limiting hole 301, thus limiting the rocker arm 3. Furthermore, the different planar layouts and hinge points of the two lifting devices prevent motion interference. By using the first lifting device 5 and the second lifting device 6 in tandem, the upper cover 2 can be smoothly opened and closed through the rocker arm 3 mechanism. Compared to the traditional single hydraulic cylinder structure, the driving force distribution is more uniform, effectively solving the problem of jamming in single-point drive. The rocker arm 3 mechanism decomposes the opening action into multi-stage movements, reducing the workload of a single lifting device.

[0020] In order to enable the rocker arm 3 to rotate to a vertical position under the drive of the first lifting device 5, so that the upper cover 2 can be opened smoothly, and to avoid the second lifting device 6 being positioned too close to the first lifting device 5, which would prevent the rocker arm 3 from rotating normally, the vertical plane where the hinge point of the second lifting device 6 and the first hinge bracket 4 is located is located outside the vertical plane where the first rotating shaft is located, so that the first lifting device 5 and the second lifting device 6 do not interfere with each other when working. Specifically, the first hinge bracket 4 includes two symmetrically arranged first support plates 401. The first support plate 401 is the support plate of the aforementioned first hinge bracket 4. Through holes 403 are provided on the first support plates 401. Both first support plates 401 have corresponding through holes 403. Each through hole 403 has a symmetrically arranged locking component 7 on its outer side. The lower parts of the two first support plates 401 are connected by a base plate 402. One side of each of the two first support plates 401 is connected to the outer wall of the tank body 1. The bottom of the first lifting device 5 is hinged to the inner side above the base plate 402, and the bottom of the second lifting device 6 is hinged to the outer side below the base plate 402. The second hinge bracket is used to connect the rocker arm 3 and the second lifting device 6. The structure of the second hinge bracket is as follows: the second hinge bracket includes two symmetrically arranged second support plates 803. The ends of the two second connecting plates away from the ear plate 801 are connected by a second rotating shaft 802. The ends of the two second connecting plates near the ear plate 801 are connected by a third rotating shaft 805. The two ends of the third rotating shaft 805 are respectively rotatably connected to the ear plate 801. A connecting block 804 is rotatably provided on the second rotating shaft 802. The connecting block 804 is located outside the rocker arm 3 and is connected to the extended end of the second lifting device 6.

[0021] See Figure 3 As shown, to prevent the top cover 2 from shaking when opened, the rocker arm 3 is detachably connected to the upper surface of the top cover 2 via a fixing assembly 9. The fixing assembly 9 includes a fixing plate 901 located above the rocker arm 3 and two threaded rods 902. The fixing plate 901 is arranged along the width direction of the rocker arm 3, with both ends protruding outside the rocker arm 3. Guide plates 903 are provided on both sides of the rocker arm 3 along its width direction. The threaded rods 902 are threadedly connected to the guide plates 903. The guide plates 903 have threaded holes adapted to the threaded rods 902. The fixing plate 901 has holes for the threaded rods 902 to pass through, with the inner diameter of the holes smaller than the outer diameter of the nuts on the threaded rods 902. The two threaded rods 902 pass through the fixing plate 901 and are threadedly connected to the guide plates 903, with the bottom ends of the threaded rods 902 able to abut against the upper surface of the top cover 2.

Claims

1. A vacuum pressure impregnation tank, comprising a tank body (1) and a matching top cover (2), characterized in that, It also includes a rocker arm (3), and a first hinge bracket (4) is provided on the upper outer side of the tank body (1). One end of the rocker arm (3) is hinged to the first hinge bracket (4) through a first rotating shaft, and the other end is hinged to the middle of the top cover (2). The inner side of the first hinge bracket (4) is also provided with a first lifting device (5) that is hinged to the rocker arm (3). The first rotating shaft is spaced apart from the end of the rocker arm (3) away from the upper cover (2). The end of the rocker arm (3) away from the upper cover (2) is provided with a limiting hole (301). The first hinge bracket (4) is provided with a through hole (403) corresponding to the limiting hole (301). The first hinge bracket (4) is provided with a locking component (7) adapted to the through hole (403). The first hinge bracket (4) is provided with a second lifting device (6) on the outside. The extended end of the second lifting device (6) is hinged to the end of the rocker arm (3) away from the upper cover (2) through the connecting component (8). The bottom of the second lifting device (6) is hinged to the lower part of the first hinge bracket (4).

2. The vacuum pressure impregnation tank according to claim 1, characterized in that, The vertical plane where the hinge point of the second lifting device (6) and the first hinge bracket (4) is located is outside the vertical plane where the first rotating shaft is located.

3. A vacuum pressure impregnation tank according to claim 1, characterized in that, The locking assembly (7) includes a support beam (701) of a support plate perpendicular to the first hinge bracket (4), and a telescopic member (702) is provided on the support beam (701). The extended end of the telescopic member (702) is provided with a pin (703). The axes of the pin (703) and the telescopic member (702) are parallel to the axis of the through hole (403).

4. A vacuum pressure impregnation tank according to claim 1, characterized in that, The connecting assembly (8) includes an ear plate (801) and a second hinge bracket. The ear plate (801) is located at the middle position on the upper surface of the rocker arm (3) away from the upper cover (2). One end of the second hinge bracket is rotatably connected to the ear plate (801), and the other end extends outward from the rocker arm (3) and is hinged to the extended end of the second lifting device (6).

5. A vacuum pressure impregnation tank according to claim 4, characterized in that, The second hinge bracket includes two symmetrically arranged second support plates (803). The ends of the two second connecting plates away from the ear plate (801) are connected by a second rotating shaft (802). A connecting block (804) is rotatably provided on the second rotating shaft (802). The connecting block (804) is located outside the rocker arm (3) and is connected to the extended end of the second lifting device (6).

6. A vacuum pressure impregnation tank according to claim 1, characterized in that, The inner diameter of the limiting hole (301) is 0.2-1 cm larger than the inner diameter of the through hole (403).

7. A vacuum pressure impregnation tank according to claim 2, characterized in that, The first hinge bracket (4) includes two symmetrically arranged first support plates (401). The lower parts of the two first support plates (401) are connected through a base plate (402). One side of the two first support plates (401) is connected to the outer wall of the tank (1). The bottom of the first lifting device (5) is hinged to the inner side above the base plate (402), and the bottom of the second lifting device (6) is hinged to the outer side below the base plate (402).

8. A vacuum pressure impregnation tank according to claim 1, characterized in that, The rocker arm (3) is detachably connected to the upper surface of the cover (2) via a fixing component (9).

9. A vacuum pressure impregnation tank according to claim 8, characterized in that, The fixing assembly (9) includes a fixing plate (901) located above the rocker arm (3) and two threaded rods (902). The two ends of the fixing plate (901) protrude outside the rocker arm (3). The rocker arm (3) is provided with guide plates (903) on both sides along its width direction. The two threaded rods (902) pass through the fixing plate (901) and are threadedly connected to the guide plates (903).

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