Punching device

Abstract

The utility model discloses a trepanning device. The trepanning device comprises a fixed seat and a trepanning knife, a trepanning cutter is slidably arranged on the fixed seat, the lower part of the trepanning cutter is a cutting part, the cutting part is of a wedge-shaped structure, and the edge of the lower part of the cutting part is a cutting edge; after the fixing base and the tank body are fixed, the vertical face of the cutting part makes contact with the inner side of the vertical face of the edge sealing structure of the tank body. According to the device, the fixing base is installed on the can body firstly, then the trepanning knife is moved, the trepanning knife punctures the can body when moving downwards, and the trepanning action is achieved. The device can rapidly punch holes, so that the efficiency is high, and the potential safety hazard that when a user punches holes in the edge of a can body through a sharp tool, the tool slides down to hurt people can be eliminated. The vertical surface of the cutting part is in contact with the inner side of the vertical surface of the edge sealing structure of the tank body, so that the formed hole is formed in the edge of the tank body, lubricating oil can be completely poured out, and waste of the lubricating oil is avoided. The perforating device solves the problem that in the prior art, a perforating device is low in perforating efficiency.

Description

Technical Field

[0001] The present application belongs to the technical field of hole-opening devices, and specifically relates to a hole-opening device. Background Art

[0002] A small turbojet engine needs to be filled with aviation lubricant, which is consumed together with fuel, every time it flies. This lubricant is usually packaged in a cylindrical iron barrel with both ends sealed. Common models include Mobil Pegasus 2 aviation lubricant, which has a capacity of 946ml. During the filling process, the user must make a hole in the tank or puncture the tank so that the lubricant can flow out smoothly.

[0003] Currently, the common method of opening holes is to rely on sharp tools such as screwdrivers and scissors, which are placed on the top of the can body and hit with heavy objects to puncture the can body, such as Figure 1 To ensure that the lubricating oil can flow out smoothly, the user not only needs to enlarge the initial hole, but also needs to open another hole on the opposite side to allow air to enter the tank and maintain the pressure balance inside and outside the tank. Figure 1 As shown, however, this approach has significant shortcomings:

[0004] Low efficiency: The existing hole-making method requires three steps: hole-making, hole-expansion, and hole-repairing, and two holes need to be made, so the operation is complicated and time-consuming.

[0005] There are safety hazards: Since the opening is located at the edge of the tank, the tank can be easily overturned during operation, which may cause sharp tools to injure the user.

[0006] Lubricating oil waste: If the hole is not properly positioned, the lubricating oil in the tank may not be completely poured out, resulting in unnecessary waste.

[0007] Lubricant contamination: If the drilling tool used is not thoroughly cleaned, impurities and foreign matter on it may enter the lubricant and cause contamination.

[0008] In summary, the existing hole opening method of aviation lubricating oil tank cannot meet the current use requirements. Utility Model Content

[0009] The embodiment of the present application solves the problem of low hole opening efficiency of the hole opening device in the prior art by providing a hole opening device.

[0010] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a hole-opening device, including a fixing seat and a hole-opening knife;

[0011] The hole-punching knife is slidably arranged on the fixed seat, the lower part of the hole-punching knife is a cutting part, the cutting part is a wedge-shaped structure, and the edge of the lower part of the cutting part is a cutting edge;

[0012] After the fixing seat is fixed to the tank body, the vertical surface of the cutting portion contacts the inner side of the vertical surface of the edge sealing structure of the tank body.

[0013] In a possible implementation, the fixing seat includes a cover body, which is a cylindrical structure with an open lower end, and the cover body is sleeved on the upper end of the tank body.

[0014] In a possible implementation, the fixing seat further includes a limiting cylinder, and the limiting cylinder is installed on the edge of the cover body;

[0015] A sliding rod is installed on the upper end of the hole-opening knife, and the upper end of the sliding rod passes through the hole on the cover body and extends into the limiting cylinder.

[0016] In a possible implementation, it further includes a pressing block, wherein a fixing cylinder is disposed at the center of the lower end of the pressing block, an internal thread is disposed in the fixing cylinder, and an external thread is disposed at the upper end of the sliding rod;

[0017] The lower end of the fixing cylinder extends into the limiting cylinder and is threadedly connected with the upper end of the sliding rod.

[0018] In a possible implementation, it also includes a spring, which is sleeved on the fixed cylinder, the upper end of the spring abuts against the bottom surface of the pressing block, the lower end of the spring extends into the limiting cylinder, and the lower end of the spring abuts against the top surface of the annular boss on the inner wall of the limiting cylinder.

[0019] In a possible implementation, a ring sleeve is provided circumferentially at the lower end of the pressing block, and the ring sleeve is sleeved on the limiting cylinder.

[0020] In a possible implementation, there are two hole cutters, and the two hole cutters are symmetrically arranged on two sides of the cover body.

[0021] In a possible implementation, the hole cutter is a cylindrical structure, and the cutting portion is a structure formed by cutting the lower portion of the hole cutter with a set cutting surface.

[0022] In a possible implementation manner, the set cutting surface is a curved surface, and the surface of the cutting portion cut by the set cutting surface is concave.

[0023] In a possible implementation, an angle between the top of the cutting portion and the upper portion of the hole cutter is an obtuse angle.

[0024] One or more technical solutions provided in the embodiments of the present utility model have at least the following technical effects or advantages:

[0025] The embodiment of the utility model provides a hole-making device. When the device is used, the fixing seat is first installed on the tank body, and then the hole-making knife is moved. When the hole-making knife moves downward, it pierces the tank body to realize the hole-making action. The device can make holes quickly, so it is highly efficient, and can eliminate the safety hazard of the tool slipping and injuring people when the user uses a sharp tool to drill a hole on the edge of the tank body. The vertical surface of the cutting part contacts the inner side of the vertical surface of the edge sealing structure of the tank body, so the hole opened is located at the edge of the tank body, and the lubricating oil can be completely poured out to avoid the waste of lubricating oil. When the device is used, foreign matter will not enter the lubricating oil with the tool, and will not contaminate the lubricating oil. The device can quickly and efficiently make a hole on the tank body of aviation lubricating oil, which is convenient for pouring out the lubricating oil. It has a simple structure, high practicality and reliability, low cost, easy operation, safety and convenience, and can minimize the waste of aviation lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A flow chart of a hole-opening method provided in the prior art.

[0028] Figure 2 A schematic structural diagram of a hole-opening device provided in an embodiment of the utility model.

[0029] Figure 3 A three-dimensional diagram of a hole-opening device provided in an embodiment of the utility model.

[0030] Figure 4 A flow chart of a hole-opening method provided in an embodiment of the utility model.

[0031] Figure numerals: 1-tank body; 2-fixing seat; 21-cover body; 22-limiting cylinder; 3-hole opening knife; 31-cutting part; 4-sliding rod; 5-pressing block; 6-spring; 7-ring sleeve; 8-top blade; 9-side blade. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the embodiments of the present utility model, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limitations on the present utility model. The terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to the specific circumstances.

[0034] like Figures 2 to 4 As shown, the hole-punching device provided in the embodiment of the utility model includes a fixing seat 2 and a hole-punching knife 3.

[0035] A hole punching knife 3 is slidably arranged on the fixed seat 2. The lower part of the hole punching knife 3 is a cutting part 31. The cutting part 31 is a wedge-shaped structure, and the edge of the lower part of the cutting part 31 is a cutting edge.

[0036] After the fixing seat 2 is fixed to the can body 1 , the vertical surface of the cutting portion 31 contacts the inner side of the vertical surface of the edge sealing structure of the can body 1 .

[0037] It should be noted that when the device is used, the fixing seat 2 is first installed on the tank body 1, and then the hole-punching knife 3 is moved. When the hole-punching knife 3 moves downward, it pierces the tank body 1 to achieve the action of punching a hole. The device can punch holes quickly, so it is highly efficient, and can eliminate the potential safety hazard of the tool slipping and injuring people when the user uses a sharp tool to punch a hole on the edge of the tank body 1. The vertical surface of the cutting part 31 contacts the inner side of the vertical surface of the edge sealing structure of the tank body 1, so the hole opened is located at the edge of the tank body 1, and the lubricating oil can be completely poured out to avoid the waste of lubricating oil. When the device is used, foreign matter will not enter the lubricating oil with the tool, and will not contaminate the lubricating oil. The device can quickly and efficiently punch holes on the tank body 1 of aviation lubricating oil, which is convenient for pouring out the lubricating oil. It has a simple structure, high practicality and reliability, and low cost, easy operation, safety and convenience, and can minimize the waste of aviation lubricating oil.

[0038] In this embodiment, the fixing seat 2 includes a cover body 21 . The cover body 21 is a cylindrical structure with an open lower end. The cover body 21 is sleeved on the upper end of the tank body 1 .

[0039] In this embodiment, the fixing seat 2 further includes a limiting cylinder 22 , and the limiting cylinder 22 is installed on the edge of the cover body 21 .

[0040] A sliding rod 4 is installed at the upper end of the hole-punching knife 3 , and the upper end of the sliding rod 4 passes through the hole on the cover body 21 and extends into the limiting cylinder 22 .

[0041] It should be noted that the lower part of the cover 21 is sleeved on the aviation lubricating oil tank 1, and the cover 21 and the limiting cylinder 22 are used to maintain the relative position of the hole cutter 3 and the tank 1, and ensure that the hole opening position is located at the edge of the tank 1. The sliding rod 4 and the limiting cylinder 22 realize the sliding installation mode of the hole cutter 3.

[0042] In this embodiment, a pressing block 5 is further included. A fixing cylinder is arranged at the center of the lower end of the pressing block 5. An internal thread is arranged in the fixing cylinder. An external thread is arranged at the upper end of the sliding rod 4.

[0043] The lower end of the fixing tube extends into the limiting tube 22 and is threadedly connected with the upper end of the sliding rod 4 .

[0044] It should be noted that the pressing block 5 is convenient for the user to apply force to press. The fixing cylinder plays the role of installing the sliding rod 4 and plays the role of sliding limit. The threaded connection method can facilitate the disassembly and maintenance of the hole cutter 3.

[0045] In this embodiment, a spring 6 is also included. The spring 6 is sleeved on the fixed tube. The upper end of the spring 6 abuts against the bottom surface of the pressing block 5. The lower end of the spring 6 extends into the limiting tube 22. The lower end of the spring 6 abuts against the top surface of the annular boss on the inner wall of the limiting tube 22.

[0046] It should be noted that after the hole is drilled and the pressing block 5 is released, the hole drill 3 can be retracted into the cover body 21 under the action of the spring 6 to achieve the purpose of protecting the hole drill 3.

[0047] In this embodiment, a ring sleeve 7 is provided in the circumferential direction of the lower end of the pressing block 5 , and the ring sleeve 7 is sleeved on the limiting cylinder 22 .

[0048] It should be noted that the ring sleeve 7 can prevent the spring 6 from being exposed, and the pressing block 5, the fixing tube and the ring sleeve 7 are integrally formed.

[0049] In this embodiment, the number of the hole punching knives 3 is two, and the two hole punching knives 3 are symmetrically arranged on both sides of the cover body 21 .

[0050] It should be noted that the two hole-opening knives 3 can open two holes at one time, thereby achieving the purpose of simultaneous oil discharge and air intake, and avoiding the problem of the need to rotate the device and the difficulty in controlling the rotation angle.

[0051] In this embodiment, the hole punching knife 3 is a cylindrical structure, and the cutting portion 31 is a structure formed by cutting the lower part of the hole punching knife 3 with a set cutting surface.

[0052] It should be noted that the hole-punching knife 3 with such a structure is easy to process and manufacture, and is also easy to sharpen the blade later.

[0053] In this embodiment, the cutting surface is set to be a curved surface, and the surface of the cutting portion 31 cut by the set cutting surface is concave.

[0054] It should be noted that the cross-sectional shape of the surface cut by the cutting portion 31 is a curve. When drilling a hole, the drilling knife 3 moves downward and the top blade 8 contacts the can body 1. At this time, the contact surface is the smallest and the pressure is the largest, so the can body 1 can be easily pierced.

[0055] In this embodiment, the edge at the bottom of the cutting portion 31 is the top edge 8, the edges on both sides of the cutting portion 31 are the side edges 9, and the angle between the top of the cutting portion 31 and the upper part of the hole cutter 3 is an obtuse angle.

[0056] It should be noted that as the hole-punching knife 3 moves downward, the side blade 9 cuts the can body 1 and pushes the slice of the can body 1 downward. The end of the cutting portion 31 is an obtuse angle, so it cannot cut the can body 1, but it can push the slice to a position perpendicular to the surface of the can body 1, and ensure that the slice is connected to the can body 1 and does not fall into the lubricating oil.

[0057] In this embodiment, it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiment, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiment should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and therefore it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A hole opening device, characterized in that: It comprises a fixing seat (2) and a hole-opening knife (3); The hole-punching knife (3) is slidably arranged on the fixed seat (2), the lower part of the hole-punching knife (3) is a cutting part (31), the cutting part (31) is a wedge-shaped structure, and the edge of the lower part of the cutting part (31) is a cutting edge; After the fixing seat (2) is fixed to the tank body (1), the vertical surface of the cutting portion (31) contacts the inner side of the vertical surface of the edge sealing structure of the tank body (1).

2. The hole opening device according to claim 1, characterized in that: The fixing seat (2) comprises a cover body (21), the cover body (21) is a cylindrical structure with an open lower end, and the cover body (21) is sleeved on the upper end of the tank body (1).

3. The hole opening device according to claim 2, characterized in that: The fixing seat (2) further comprises a limiting cylinder (22), wherein the limiting cylinder (22) is mounted on the edge of the cover body (21); A sliding rod (4) is installed at the upper end of the hole-opening knife (3), and the upper end of the sliding rod (4) passes through the hole on the cover body (21) and extends into the limiting cylinder (22).

4. The hole opening device according to claim 3, characterized in that: It also includes a pressing block (5), wherein a fixing cylinder is arranged at the center of the lower end of the pressing block (5), an internal thread is arranged in the fixing cylinder, and an external thread is arranged at the upper end of the sliding rod (4); The lower end of the fixing tube extends into the limiting tube (22) and is threadedly connected to the upper end of the sliding rod (4).

5. The hole opening device according to claim 4, characterized in that: It also includes a spring (6), which is sleeved on the fixed tube, the upper end of the spring (6) abuts against the bottom surface of the pressing block (5), the lower end of the spring (6) extends into the limiting tube (22), and the lower end of the spring (6) abuts against the top surface of the annular boss on the inner wall of the limiting tube (22).

6. The hole opening device according to claim 4, characterized in that: A ring sleeve (7) is provided in the circumferential direction of the lower end of the pressing block (5), and the ring sleeve (7) is sleeved on the limiting cylinder (22).

7. The hole opening device according to claim 2, characterized in that: The number of the hole-punching knives (3) is two, and the two hole-punching knives (3) are symmetrically arranged on both sides of the cover body (21).

8. The hole opening device according to claim 1, characterized in that: The hole-opening knife (3) is a cylindrical structure, and the cutting portion (31) is a structure formed by cutting the lower portion of the hole-opening knife (3) with a set cutting surface.

9. The hole opening device according to claim 8, characterized in that: The set cutting surface is a curved surface, and the surface of the cutting portion (31) cut by the set cutting surface is concave.

10. The hole opening device according to claim 8, characterized in that: The included angle between the top of the cutting portion (31) and the upper portion of the hole-opening knife (3) is an obtuse angle.

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