A punch device for sand control of a flying device

By designing a combination of support frame, shell, punch, and support, the problem of deformation of the sand filter shell after punching was solved, achieving high-quality punching and improved production efficiency.

CN224574468UActive Publication Date: 2026-07-31HONGMAO GIFT HUANGYAN CITY ZHEJIANG PROV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGMAO GIFT HUANGYAN CITY ZHEJIANG PROV
Filing Date
2025-08-27
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In the existing technology, the sand filter shell deforms after being formed before punching, which increases the processing difficulty and slows down the production progress, resulting in poor punching quality.

Method used

A punching device for a sand filter for an aircraft was designed, including a support frame, a shell, a punch, a support, and a transmitter. The cooperation between the transmitter and the support ensures that the shell of the sand filter is stably clamped after forming, and the pressure table and perforated plate in the punch maintain the flatness of the shell and avoid deformation.

Benefits of technology

This method enables stable punching after the sand filter shell is formed, ensuring punching quality, accelerating production progress, and avoiding shell deformation and increased processing difficulty.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a punching device for an aircraft sand filter, belonging to the field of sand filter punching technology. The key technical points are: it includes a support frame and a housing; a punch is mounted on the top of the housing; a support is located below the punch inside the housing; the punch includes a first cylinder; a pressure plate is mounted on the telescopic part of the first cylinder; multiple punching needles are mounted on the pressure plate; the support includes a loading frame; a perforated plate is mounted on the loading frame; a sliding rod is rotatably connected to both sides of the loading frame; and an arc-shaped groove is formed on the housing, connected to one of the sliding rods. This solution ensures the stability of the sand filter housing, punches holes after the sand filter housing is formed, maintains the flatness of the sand filter housing during punching, prevents deformation, and ensures punching quality.
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Description

Technical Field

[0001] This utility model relates to the field of sand filter punching technology, specifically a punching device for aircraft sand filters. Background Technology

[0002] Sand filters are often used in aircraft to protect them. The surface of the sand filter is covered with a perforated shell to expel sand and dust. However, most existing sand filter shells are punched before they are processed into the shape of the sand filter, that is, punching holes in the shell when it is still flat. This can easily lead to uncontrollable deformation of the shell during subsequent processing, resulting in an imperfect fit with the sand filter, increasing processing difficulty and delaying production. In view of this, a punching device for aircraft sand filters is proposed. Utility Model Content

[0003] In view of the problems existing in the prior art, the purpose of this utility model is to provide a punching device for aircraft sand guards, which can ensure the stability of the sand guard shell, punch holes after the sand guard shell is formed, and maintain the flatness of the sand guard shell during punching to prevent deformation and ensure the punching quality.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a punching device for an aircraft sand filter, comprising a support frame and a housing, wherein a punch is provided on the top of the housing, and a support is provided inside the housing below the punch. The punch includes a first cylinder, and a pressure plate is provided on the telescopic part of the first cylinder. Multiple punching needles are provided on the pressure plate. The support includes a loading frame, and a perforated plate is provided on the loading frame. A sliding rod is rotatably connected to each side of the loading frame. One of the sliding rods is connected to a transmitter, and the other sliding rod is rotatably connected to a second cylinder through a connecting plate. The second cylinder is connected to the support frame. An arc-shaped groove is provided on the housing, and the arc-shaped groove is connected to one of the sliding rods.

[0005] In some embodiments, the transmitter includes a drive motor, a first conveying roller, and a second conveying roller. The output shaft of the drive motor is fixedly connected to the second conveying roller. A gear set is fixedly connected to one end of the second conveying roller away from the drive motor. The first conveying roller is driven by the gear set to transmit power to the second conveying roller. The second conveying roller is rotatably connected to the slide bar.

[0006] In some embodiments, a fixing member is provided on the loading frame, the fixing member including a screw, a T-shaped plate is screwed onto the screw, the T-shaped plate is slidably connected to the loading frame, a baffle is provided on the side of the loading frame away from the T-shaped plate, the baffle is connected to a movable plate through a connecting rod, and a spring is wound on the portion of the connecting rod located between the movable plate and the loading frame.

[0007] In some embodiments, the end of the screw is hexagonal in shape. In some embodiments, the housing has a glass window.

[0008] In summary, this utility model has the following beneficial effects: This utility model is equipped with a transmitter, a punch, and a support. The transmitter and support fix and support the sand filter shell to ensure its stability. At the same time, the sand filter shell is punched after processing to perfectly fit the shape of the sand filter. During punching, the pressure table in the punch and the perforated plate in the support clamp the sand filter shell, thereby ensuring the flatness of the sand filter shell, preventing its deformation, ensuring the punching quality, and speeding up the production process. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 Here is a schematic diagram of the punching device of this utility model: Figure 3 Here is a schematic diagram of the structure of the support of this utility model: Figure 4 Here is a schematic diagram of the transmitter of this utility model: Figure 5 This is a schematic diagram of the working state of this utility model.

[0010] In the diagram: 1. Support frame; 2. Housing; 3. Punch; 31. First cylinder; 32. Press table; 33. Punch pin; 4. Support; 41. Loading frame; 42. Perforated plate; 43. Slide rod; 44. Arc groove; 45. Second cylinder; 46. Fixing component; 461. Screw; 462. T-shaped plate; 463. Baffle; 464. Moving plate; 465. Spring; 5. Transmitter; 51. Drive motor; 52. First conveying roller; 53. Gear set; 54. Second conveying roller. Detailed Implementation

[0011] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0012] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0014] See Figure 1-5A punching device for an aircraft sand guard includes a support frame 1 and a housing 2. A punch 3 is provided on the top of the housing 2, and a support 4 is provided inside the housing 2 below the punch 3. The punch 3 includes a first cylinder 31, and a pressure table 32 is provided on the telescopic part of the first cylinder 31. Multiple punching needles 33 are provided on the pressure table 32. The support 4 includes a loading frame 41, and a perforated plate 42 is provided on the loading frame 41. A slide rod 43 is rotatably connected to both sides of the loading frame 41. One slide rod 43 is connected to a transmitter 5, and the other slide rod 43 is rotatably connected to a second cylinder 45 through a connecting plate. The second cylinder 45 is connected to the support frame 1. An arc-shaped groove 44 is provided on the housing 2, and the arc-shaped groove 44 is connected to a slide rod 43. In use, the operator places the sand filter shell into the transmitter 5 inside the shell 2. The transmitter 5 transports the first surface of the sand filter shell to the area below the punching pins 33 of the puncher 3. Then, the first cylinder 31 of the puncher 3 is extended to drive the pressure table 32 and the punching pins 33 to punch the sand filter shell. During punching, the pressure table 32 and the perforated plate 42 together clamp the sand filter shell. The number and position of the holes in the perforated plate 42 correspond to the number and position of the punching pins 33 to ensure that the punched area of ​​the sand filter shell remains flat and does not deform during punching, thus ensuring the punching quality. Afterward, the pressure table 32 and the punching pins 33 are reset, and then the second cylinder 45 is retracted to pull the slide bar 43 on one side downward along the arc groove 44, thereby causing the entire support 4 to deflect about the slide bar 43 located at the position of the transmitter 5. In this way, the support 4 will not obstruct the sand filter shell. At this time, the control transmitter 5 continues to transmit the sand filter shell. When the junction of the first and second surfaces of the sand filter shell is transmitted to the position of the transmitter 5, the operator controls the second cylinder 45 to extend and drive the slide rod 43 to move upward along the arc groove 44 to reset. This allows the support 4 to support the second surface of the sand filter shell and position it below the punch 3. At this time, the operator can control the punch 3 to punch the second surface of the sand filter shell. After the punching is completed, the operator controls the punch 3 to reset and then controls the transmission 5 to move the sand filter shell again after deflecting the support 4. This moves the third surface of the sand filter shell to the bottom of the punch 3. The operator then controls the support 4 to reset and support the sand filter shell. Then, the punch 3 is used to punch the sand filter shell. This process is repeated to punch the sand filter shell.

[0015] In some embodiments, the transmitter 5 includes a drive motor 51, a first conveying roller 52, and a second conveying roller 54. The output shaft of the drive motor 51 is fixedly connected to the second conveying roller 54. A gear set 53 is fixedly connected to the end of the second conveying roller 54 away from the drive motor 51. The first conveying roller 52 is driven by the gear set 53 to drive the second conveying roller 54. The second conveying roller 54 is rotatably connected to the slide rod 43. After the punch 3 punches a hole in the first side of the sand filter shell, the operator controls the drive motor 51 to drive the second conveying roller 54 to rotate. The second conveying roller 54, through the transmission of the gear set 53, causes the first conveying roller 52 to also rotate, thereby moving the sand filter shell and conveying the second side of the sand filter shell to the bottom of the punch 3.

[0016] In some embodiments, a fixing member 46 is provided on the loading frame 41. The fixing member 46 includes a screw 461, a T-shaped plate 462 screwed onto the screw 461, the T-shaped plate 462 being slidably connected to the loading frame 41, and a baffle 463 provided on the side of the loading frame 41 away from the T-shaped plate 462. The baffle 463 is connected to a movable plate 464 via a connecting rod, and a spring 465 is wound around the portion of the connecting rod located between the movable plate 464 and the loading frame 41. (See attached diagram) Figure 4 When the operator needs to replace the perforated plate 42 with a different size, the operator only needs to rotate the screw 461, so that the screw 461 drives the T-shaped plate 462 to move under the restriction of the loading frame 41, thereby leaving enough space for the operator to remove the perforated plate 42 and replace it with a perforated plate 42 of a different size. When the perforated plate 42 is removed, the baffle 463 and the moving plate 464 are reset by the influence of the spring 465. Then the operator puts the perforated plate 42 of a different size into the loading frame 41. When it is put in, the perforated plate 42 squeezes the baffle 463, so that one end of the perforated plate 42 is subjected to the reaction force of the baffle 463. Then the operator rotates the screw 461, so that the screw 461 drives the T-shaped plate 462 to move toward the perforated plate 42, pushing the perforated plate 42 to the position corresponding to the punch 3, thus completing the replacement and fixing of the perforated plate 42.

[0017] In some embodiments, the end of the screw 461 is hexagonal in shape. The hexagonal end of the screw 461 facilitates its placement inside the loading frame 41, saving internal space, and the operator can rotate the screw 461 simply by using a hexagonal rod.

[0018] In some embodiments, a glass window is provided on the housing 2. The glass window allows the operator to see more intuitively the state of the sand filter housing during drilling, ensuring that the operator can intervene in a timely manner if the device malfunctions, reducing unnecessary waste.

[0019] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. A perforating device for sand control of a flying device, comprising a support frame (1) and a housing (2), characterized in that: A punch (3) is provided on the top of the housing (2). A support (4) is provided inside the housing (2) below the punch (3). The punch (3) includes a first cylinder (31). A pressure plate (32) is provided on the telescopic part of the first cylinder (31). A plurality of punching needles (33) are provided on the pressure plate (32). The support (4) includes a loading frame (41). A perforated plate (42) is provided on the loading frame (41). A slide rod (43) is rotatably connected to both sides of the loading frame (41). One of the slide rods (43) is connected to a transmitter (5). The other slide rod (43) is rotatably connected to a second cylinder (45) through a connecting plate. The second cylinder (45) is connected to the support frame (1). An arc groove (44) is opened on the housing (2). The arc groove (44) is connected to one of the slide rods (43).

2. A punch for a sand control device for a wellbore according to claim 1, wherein: The transmitter (5) includes a drive motor (51), a first conveying roller (52) and a second conveying roller (54). The output shaft of the drive motor (51) is fixedly connected to the second conveying roller (54). A gear set (53) is fixedly connected to one end of the second conveying roller (54) away from the drive motor (51). The first conveying roller (52) is driven by the gear set (53) and the second conveying roller (54). The second conveying roller (54) is rotatably connected to the slide bar (43).

3. The punch assembly of claim 1 wherein: A fixing member (46) is provided on the loading frame (41). The fixing member (46) includes a screw (461). A T-shaped plate (462) is screwed onto the screw (461). The T-shaped plate (462) is slidably connected to the loading frame (41). A baffle (463) is provided on the side of the loading frame (41) away from the T-shaped plate (462). A movable plate (464) is connected to the baffle (463) through a connecting rod. A spring (465) is wound on the part of the connecting rod located between the movable plate (464) and the loading frame (41).

4. The punch assembly of claim 1 wherein: The end of the screw (461) is hexagonal in shape.

5. The apparatus of claim 1 wherein: A glass window is provided on the housing (2).