Portable mechanical wiping device for inner wall of vacuum tank

Abstract

The invention discloses a portable mechanical wiping device for the inner wall of a vacuum tank, and relates to the technical field of aerospace vacuum container equipment cleaning. Comprising a telescopic frame, a locking mechanism and a wiping panel mechanism, the wiping panel mechanism is connected to the telescopic frame through the locking mechanism, the wiping panel mechanism comprises two supporting plates, and a plurality of wiping plates are connected to the end faces of the supporting plates through ball pairs; the locking mechanism comprises a sliding seat, one end of the sliding seat is rotationally connected with a first rocker and a second rocker, one end of the first rocker and one end of the second rocker are rotationally connected with the two supporting plates respectively, a tension block is slidably installed on the sliding seat, one end of the tension block is connected with a second steel rope, and one end of the second steel rope is connected with the supporting plates. The telescopic frame comprises a fixed handle, a rotating handle is arranged at the end of the fixed handle, a first steel rope is connected into the rotating handle, and the end of the first steel rope is connected with the tension block. The vacuum tank cleaning device can be suitable for wiping redundant materials on the inner walls of vacuum tanks of different specifications and the surfaces of internal heat sinks, and the cleaning efficiency and quality are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of cleaning technology for aerospace vacuum container equipment, and in particular to a portable mechanical wiping device for the inner wall of a vacuum tank. Background Technology

[0002] Aerospace conductive slip rings, drive mechanisms, torque gyroscopes, and other devices require vacuum environment simulation tests on the ground before launch, and vacuum tanks are usually the preferred equipment for these simulations. After vacuum power-on or thermal vacuum tests in the vacuum tank, the non-metallic materials used in these aerospace devices will volatilize organic matter in a vacuum environment, which adheres to the inner wall of the vacuum tank and the outer wall of the internal heat sink. This organic matter requires regular cleaning to prevent it from affecting subsequent device testing. Currently, there is no corresponding vacuum tank cleaning device on the market, and current vacuum tank cleaning typically involves manually wiping the inner wall of the vacuum tank with a lint-free cloth soaked in alcohol. For smaller vacuum tanks, cleaning personnel can use a steel rod to hold a lint-free cloth soaked in alcohol to wipe the inner wall and the outer wall of the internal heat sink, which is effective to some extent. However, for larger vacuum tanks with a diameter of 2 meters or more, the spatial distribution of the internal cold shield, cold plate, heat sink, and various connectors makes traditional cleaning methods problematic and may affect performance to some extent. The final effect of cleaning is manifested in the following aspects: (1) Inconvenient wiping operation; when the size of the vacuum tank is large, the bending radius of the inner wall of the vacuum tank and the outer wall of the internal heat sink is large, and the traditional straight rod wiping is inconvenient; (2) Incomplete wiping; the straight rod wiping is not in place, involving the curved inner wall, the straight rod cannot extend to the area that needs to be wiped, leaving dead corners in the tank, and manual wiping is not in place; (3) Uniqueness; each time the inner wall of the vacuum tank is cleaned, it can only wipe one side or the plane; (4) Repeated wiping is time-consuming; the inner wall of the vacuum tank and the internal heat sink are large in size. If only manual wiping is used, the alcohol and lint-free cloth need to be replaced after each wiping, which is time-consuming and laborious; (5) Limited wiping distance; the wiping distance of the traditional straight rod wiping is the length of the rod. Manual wiping can only wipe the outer edge of the vacuum tank. For the area near the tail of the tank, it is usually not wiped in place. To meet the wiping needs of vacuum canisters of different sizes, improve the cleaning efficiency of the inner wall of the vacuum canister, and ensure a high degree of cleanliness, this invention proposes a portable mechanical wiping device for the inner wall of a vacuum canister. By adjusting the spacing between the wiping panels, excess material on the inner wall and internal heat sink surface of vacuum canisters of different sizes can be wiped away. By adjusting the relative angle between the support rods of the telescopic frame and rotating the handle to change the distance between the two wiping panels, the cleaning efficiency and quality can be effectively improved. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention uses the adjustable spacing between the wiping panels to wipe away excess material from the inner walls and internal heat sink surfaces of vacuum tanks of different sizes. By adjusting the relative angles between the support rods of the telescopic frame and rotating the handle to change the distance between the two wiping panels, the cleaning efficiency and quality are effectively improved.

[0004] The technical solution used in this invention is as follows: a portable mechanical wiping device for the inner wall of a vacuum tank, comprising a telescopic frame, a locking mechanism, and a wiping panel mechanism. The wiping panel mechanism is connected to the telescopic frame via the locking mechanism. The telescopic frame is used to adjust the angle and orientation of the wiping panel mechanism. The wiping panel mechanism is used to wipe the inner wall of the vacuum tank and the outer wall of the internal heat sink. The wiping panel mechanism includes two support plates connected by a multi-link mechanism. Multiple wiping plates are connected to the end faces of the support plates by ball joints. The locking mechanism includes a slide block. One end of the slide block is rotatably connected to a rocker arm and a rocker arm via a pin. One end of rod one and rocker two are rotatably connected to two support plates respectively. A tension block is slidably installed on the slide, and a spring is connected between the tension block and the slide. A steel rope two is connected to one end of the tension block, and one end of the steel rope two is connected to the support plate. The telescopic frame includes a fixed handle, support rod one and support rod two, and the fixed handle, support rod one and support rod two are rotatably connected in sequence. A rotating handle is provided at the end of the fixed handle, and a steel rope one is connected inside the rotating handle. The steel rope one passes through the fixed handle, support rod one and support rod two in sequence. At the end of support rod two, the end of the steel rope one is connected to the tension block.

[0005] As a preferred embodiment, the telescopic frame includes a locking knob; the fixed handle, support rod one, and support rod two are sequentially rotatably connected by the locking knob, and the locking knob can be adjusted for locking; support rod two and the slide are also rotatably connected by the locking knob.

[0006] As a preferred embodiment, the end of the fixed handle is provided with a thread, and the threads on the rotating handle and the fixed handle form a helical pair. The fixed handle has a hollow structure, and one end of the steel rope is fixedly connected to the rotating handle inside the fixed handle.

[0007] As a preferred embodiment, the locking mechanism includes a slide groove formed on the slide block, a tension block slidably engaged in the slide groove, a spring located in the slide groove, one end of the spring connected to one end of the slide groove, and the other end of the spring connected to the end of the tension block.

[0008] As a preferred embodiment, the slide block is provided with a wire groove, one end of the first steel rope is located in the wire groove and is fixedly connected to the tension block, one end of the second steel rope is fixedly connected to the tension block through the wire groove, and the other end of the second steel rope is a hook part, and a hanging ring is provided on the support plate, with the hook part hanging on the hanging ring of the support plate.

[0009] As a preferred embodiment, the ends of rocker arm one and rocker arm two connected to the slide are coaxially arranged, and the other ends of rocker arm one and rocker arm two are connected to two support plates through pin one.

[0010] As a preferred embodiment, the multi-link mechanism includes two sets of link one, link two, and link three; of the two support plates, one support plate is rotatably connected to link one via pin two, and the other support plate is rotatably connected to link three via pin two, link two is rotatably mounted on link one, and link one, link three, and link two are coaxially connected via pin three.

[0011] As a preferred embodiment, the support plate is connected to a ball joint with a ball joint, and one end of the ball joint is rotatably connected to the wiping plate via a pin.

[0012] Specifically, in this wiping device, a telescopic frame supports the locking mechanism and the wiping panel mechanism. By adjusting the relative angle of each support rod on the telescopic frame or increasing or decreasing the number of support rods, it can adapt to the inner wall of the vacuum tank and the outer wall of the internal heat sink with different curvatures and specifications. The locking mechanism connects the telescopic frame and the wiping panel mechanism. The rotating handle on the telescopic frame can be adjusted arbitrarily to adjust the distance between the two support plates on the wiping panel mechanism. A multi-link mechanism is provided between the two support plates on the wiping panel mechanism to realize the linkage control between the two support plates. Multiple wiping plates are installed on the outer side of the two support plates, which can closely adhere to the inner wall of the vacuum tank and... The internal heat sink and outer wall achieve a thorough cleaning of all areas of the vacuum tank. Before using this cleaning device, the size of the vacuum tank and the radius of curvature of its inner wall must be estimated. Based on this data, the relative angles of the support rods on the telescopic frame and the number of support rods should be adjusted accordingly. During use, the rotating handle on the telescopic frame can be rotated appropriately according to the dimensions of the inner wall of the vacuum tank and the outer wall of the internal heat sink to ensure that each wiping plate fits tightly against the inner wall of the vacuum tank and the outer wall of the internal heat sink. This wiping device does not need to be redesigned and manufactured for different models and specifications of vacuum tanks. Only the number of wiping plates needs to be adjusted according to the size of the vacuum tank, making it highly replaceable and versatile.

[0013] Specifically, when holding the fixed handle, rotating the handle moves it under the threaded engagement, pulling steel rope one, which in turn pulls the tension block, which in turn pulls steel rope two, thus adjusting the spacing between the two support plates. The multi-link mechanism can control the two support plates in a coordinated manner and provide effective support. The ball joint is connected to the support plate through a ball joint, which can increase the freedom of movement of the wiping plate, allowing it to better fit the inner wall of the vacuum tank and the outer wall of the internal heat sink. When the tension block moves, the spring is compressed, and when the tension block returns to its original position, the spring provides a restoring force. During wiping, the relative angles of the fixed handle, support rod one, and support rod two can be adjusted according to the required wiping direction and angle. By rotating the locking knob, the fixed handle, support rod one, and support rod two can be locked to maintain their state.

[0014] The advantages of this invention compared with the prior art are: (1) more thorough wiping; the telescopic frame of this device can change the bending angle to adapt to the straight or curved inner wall of the vacuum tank, and each angle can be cleaned in place, making the wiping more thorough; (2) good interchangeability and strong versatility; it supports the replacement of different types and specifications of wiping plates to remove different types of non-metallic excess materials in the tank; (3) strong adaptability; the wiping panel mechanism is equipped with multiple wiping plates, which can adapt to the inner wall of the vacuum tank with different curvatures; (4) high wiping efficiency; the wiping panel mechanism is equipped with a multi-link mechanism in the middle, which can support the simultaneous wiping of the inner wall of the vacuum tank and the outer wall of the internal heat sink, saving time and effort in wiping. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the wiping process of the inner wall of the vacuum tank and the outer wall of the internal heat sink according to the present invention. Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the wiping panel mechanism of the present invention; Figure 4 This is a schematic diagram of the locking mechanism structure of the present invention; Figure 5 This is a schematic diagram of the telescopic frame structure of the present invention.

[0016] Reference numerals: 1-Fixed handle; 2-Support rod one; 3-Support rod two; 4-Locking knob; 5-Steel rope one; 6-Rotating handle; 7-Slide seat; 8-Spring; 9-Pull block; 10-Steel rope two; 11-Rock lever one; 12-Rock lever two; 13-Pin one; 14-Wiping plate; 15-Ball joint connecting rod; 16-Pin two; 17-Support plate; 18-Connecting rod one; 19-Connecting rod two; 20-Connecting rod three; 21-Pin three; 22-Telescopic frame; 23-Locking mechanism; 24-Wiping panel mechanism; 25-Vacuum tank door; 26-Tank body; 27-Vacuum tank heat sink. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] like Figures 1 to 5As shown, a portable mechanical wiping device for the inner wall of a vacuum tank includes a telescopic frame 22, a locking mechanism 23, and a wiping panel mechanism 24. The wiping panel mechanism 24 is connected to the telescopic frame 22 via the locking mechanism 23. The telescopic frame 22 is used to adjust the angle and orientation of the wiping panel mechanism 24. The wiping panel mechanism 24 is used to wipe the inner wall of the vacuum tank and the outer wall of the internal heat sink. The wiping panel mechanism 24 includes two support plates 17, which are connected by a multi-link mechanism. Multiple wiping plates 14 are connected to the end faces of the support plates 17 by ball joints. The locking mechanism 23 includes a slide 7, one end of which is rotatably connected to a rocker arm 11 and a rocker arm 12 via a pin 13. One end of the rocker arm 12 is rotatably connected to two support plates 17. A tension block 9 is slidably installed on the slide block 7, and a spring 8 is connected between the tension block 9 and the slide block 7. A steel rope 10 is connected to one end of the tension block 9, and one end of the steel rope 10 is connected to the support plate 17. The telescopic frame 22 includes a fixed handle 1, a support rod 1 2, and a support rod 2 3, and the fixed handle 1, support rod 1 2, and support rod 2 3 are rotatably connected in sequence. A rotating handle 6 is provided at the end of the fixed handle 1. A steel rope 1 5 is connected inside the rotating handle 6. The steel rope 1 5 passes through the fixed handle 1, support rod 1 2, and support rod 2 3 in sequence. At the end of the support rod 2 3, the end of the steel rope 1 5 is connected to the tension block 9.

[0019] The telescopic frame 22 includes a locking knob 4; the fixed handle 1, support rod 1 2, and support rod 2 3 are rotatably connected in sequence by the locking knob 4, and the locking knob 4 can be locked and adjusted; the support rod 2 3 and the slide 7 are also rotatably connected by the locking knob 4; the end of the fixed handle 1 is provided with a thread, and the rotating handle 6 and the thread on the fixed handle 1 form a helical pair; the fixed handle 1 has a hollow structure, and one end of the steel rope 5 is fixedly connected to the rotating handle 6 inside the fixed handle 1.

[0020] The locking mechanism 23 includes a groove on the slide block 7, a tension block 9 slidingly engaged in the groove, a spring 8 located in the groove, one end of the spring 8 connected to one end of the groove, and the other end of the spring 8 connected to the end of the tension block 9; a wire groove is provided on the slide block 7, one end of steel rope 1 5 is located in the wire groove and fixedly connected to the tension block 9, one end of steel rope 2 10 is fixedly connected to the tension block 9 through the wire groove, and the other end of steel rope 2 10 is a hook, and a hanging ring is provided on the support plate 17, with the hook hanging on the hanging ring of the support plate 17; the ends of rocker arm 1 11 and rocker arm 2 12 connected to the slide block 7 are coaxially arranged, and the other ends of rocker arm 1 11 and rocker arm 2 12 are connected to the two support plates 17 through pin 1 13.

[0021] The multi-link mechanism includes two sets of links 18, 19, and 20; of the two support plates 17, one support plate 17 is rotatably connected to link 18 via pin 2 16, and the other support plate 17 is rotatably connected to link 20 via pin 2 16; link 2 19 is rotatably mounted on link 18; link 18, link 20, and link 2 19 are coaxially connected via pin 3 21; a ball joint link 15 is connected to the support plate 17 via a ball joint, and one end of the ball joint link 15 is rotatably connected to the wiping plate 14 via a pin.

[0022] The operating principle is as follows: In this wiping device, the telescopic frame 22 supports the locking mechanism 23 and the wiping panel mechanism 24. By adjusting the relative angle of each support rod on the telescopic frame 22 or increasing or decreasing the number of support rods, it can adapt to the inner wall of the vacuum tank and the outer wall of the internal heat sink with different curvatures and specifications. The locking mechanism 23 connects the telescopic frame 22 and the wiping panel mechanism 24. The rotating handle 6 on the telescopic frame 22 can be adjusted arbitrarily to adjust the distance between the two support plates 17 on the wiping panel mechanism. A multi-link mechanism is provided between the two support plates 17 on the wiping panel mechanism 24 to realize the linkage control between the two support plates 17. Multiple wiping plates 14 are installed on the outer side of the two support plates 17. This cleaning device can closely adhere to the inner wall of the vacuum tank and the outer wall of the internal heat sink, achieving a thorough cleaning effect in all areas of the vacuum tank. Before using this cleaning device, the size of the vacuum tank and the radius of curvature of its inner wall must be estimated. Based on this data, the relative angles of the support rods on the telescopic frame 22 and the number of support rods can be adjusted accordingly. During use, the rotating handle 6 on the telescopic frame 22 can be rotated appropriately according to the dimensions of the inner wall of the vacuum tank and the outer wall of the internal heat sink, so that each wiping plate 14 fits tightly against the inner wall of the vacuum tank and the outer wall of the internal heat sink. For different models and specifications of vacuum tanks, this wiping device does not need to be redesigned and manufactured. Only the number of wiping plates 14 needs to be adjusted according to the size of the vacuum tank, making it highly replaceable and versatile.

[0023] Specifically, by opening the vacuum tank door 25 and extending the device between the inner wall of the tank body 26 and the outer wall of the vacuum tank heat sink 27, while holding the fixed handle 1, rotating the handle 6 causes it to move under threaded engagement, pulling the steel cable 5. The steel cable 5 then pulls the tension block 9, which in turn pulls the steel cable 10, thus adjusting the spacing between the two support plates 17. The multi-link mechanism can control the two support plates 17 in a coordinated manner and provide effective support. The ball joint 15, through the ball joint... Connected to the support plate 17, the wiping plate 14 can be moved more freely, allowing it to better fit the inner wall of the vacuum tank and the outer wall of the internal heat sink. When the pull block 9 moves, the spring 8 is compressed. When the pull block 9 returns to its original position, the spring 8 provides a restoring force. During wiping, the relative angles of the fixed handle 1, support rod 1 2, and support rod 2 3 can be adjusted according to the required wiping direction and angle. By rotating the locking knob 4, the fixed handle 1, support rod 1 2, and support rod 2 3 can be locked to maintain their state.

[0024] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A portable mechanical wiping device for the inner wall of a vacuum container, characterized in that: The device includes a telescopic frame (22), a locking mechanism (23), and a wiping panel mechanism (24). The wiping panel mechanism (24) is connected to the telescopic frame (22) via the locking mechanism (23). The telescopic frame (22) is used to adjust the angle and orientation of the wiping panel mechanism (24). The wiping panel mechanism (24) is used to wipe the inner wall of the vacuum tank and the outer wall of the internal heat sink. The wiping panel mechanism (24) includes two support plates (17), which are connected by a multi-link mechanism. Multiple wiping plates (14) are connected to the end faces of the support plates (17) by ball joints. The locking mechanism (23) includes a slide (7). One end of the slide (7) is rotatably connected to a rocker arm (11) and a rocker arm (12) via a pin (13). One end of the rocker arm (11) and the rocker arm (12) are respectively connected to the two support plates. (17) Rotary connection, a tension block (9) is slidably installed on the slide (7), and a spring (8) is connected between the tension block (9) and the slide (7). A steel rope (10) is connected to one end of the tension block (9), and one end of the steel rope (10) is connected to the support plate (17). The telescopic frame (22) includes a fixed handle (1), a support rod (2) and a support rod (3), and the fixed handle (1), the support rod (2) and the support rod (3) are rotatably connected in sequence. A rotating handle (6) is provided at the end of the fixed handle (1), and a steel rope (5) is connected inside the rotating handle (6). The steel rope (5) passes through the fixed handle (1), the support rod (2) and the support rod (3) in sequence. At the end of the support rod (3), the end of the steel rope (5) is connected to the tension block (9).

2. The portable vacuum canister inner wall mechanical wiping device according to claim 1, characterized in that: The telescopic frame (22) includes a locking knob (4); the fixed handle (1), support rod one (2), and support rod two (3) are sequentially connected by the locking knob (4), and the locking knob (4) can be adjusted for locking; support rod two (3) and slide (7) are also connected by the locking knob (4).

3. The portable vacuum canister inner wall mechanical wiping device according to claim 2, characterized in that: The fixed handle (1) has a threaded end. The rotating handle (6) and the thread on the fixed handle (1) form a helical pair. The fixed handle (1) is a hollow structure. One end of the steel rope (5) is fixedly connected to the rotating handle (6) inside the fixed handle (1).

4. The portable vacuum canister inner wall mechanical wiping device according to claim 1, characterized in that: The locking mechanism (23) includes a groove on the slide block (7), a tension block (9) slidingly engaged in the groove, a spring (8) located in the groove, one end of the spring (8) connected to one end of the groove, and the other end of the spring (8) connected to the end of the tension block (9).

5. The portable vacuum canister inner wall mechanical wiping device according to claim 3, characterized in that: The slide (7) has a wire groove. One end of the first steel rope (5) is located in the wire groove and is fixedly connected to the tension block (9). One end of the second steel rope (10) is fixedly connected to the tension block (9) through the wire groove. The other end of the second steel rope (10) is a hook part, and a hanging ring is provided on the support plate (17). The hook part is hung on the hanging ring of the support plate (17).

6. The portable vacuum canister inner wall mechanical wiping device according to claim 1, characterized in that: The rocker arm 1 (11) and rocker arm 2 (12) are coaxially connected to the slide block (7), and the other ends of rocker arm 1 (11) and rocker arm 2 (12) are connected to the two support plates (17) through pin 1 (13).

7. The portable vacuum canister inner wall mechanical wiping device according to claim 1, characterized in that: The multi-link mechanism includes two sets of links one (18), two (19) and three (20); of the two support plates (17), one support plate (17) is rotatably connected to link one (18) through pin two (16), and the other support plate (17) is rotatably connected to link three (20) through pin two (16). Link two (19) is rotatably mounted on link one (18). Link one (18), link three (20) and link two (19) are coaxially connected through pin three (21).

8. The portable vacuum canister inner wall mechanical wiping device according to claim 1, characterized in that: The support plate (17) is connected to a ball joint with a ball joint and a ball head connecting rod (15). One end of the ball head connecting rod (15) is rotatably connected to the wiping plate (14) by a pin.

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