A dowel positioned coconut borer

Abstract

The utility model provides a kind of dowel positioning's coconut trepanner, the trepanner includes holding handle, driving motor, drilling part, locating peg and elastic piece. Among them, driving motor is arranged in holding handle inside, and the output shaft of driving motor extends out holding handle and connects drilling part. The side wall of holding handle is distributed with multiple containing holes in array, and locating peg and elastic piece are embedded in each containing hole. When operating, hold holding handle and press each locating peg towards coconut to make dowel pierce into coconut interior, make holding handle realize axial positioning relative coconut, ensure that drilling part can only move along self axial direction and insert into coconut interior. In the process of holding handle and pushing drilling part and inserting into coconut, holding handle moves to coconut direction and synchronously compresses each elastic piece, and the reaction force generated by elastic piece can make locating peg always tightly abut coconut surface, can further strengthen positioning stability, avoid radial deviation of drilling part in the process of feeding, guarantee the accurate stability of trepanning.

Description

Technical Field

[0001] This utility model relates to the field of coconut processing tools, and in particular to a coconut hole opener with pin positioning. Background Technology

[0002] In coconut processing and daily drinking scenarios, coconut openers are commonly used tools. Existing coconut openers typically include a gripping structure, a driving component, and a drilling component. Some openers have a simple positioning structure to assist in the opening operation. The driving component drives the drilling component to rotate. The operator holds the gripping structure and aligns the drilling component with the preset opening position on the coconut. The operator applies force to make the drilling component cut or drill a hole in the coconut shell, thereby creating an opening that can be used for drinking or processing, meeting the user's need to obtain the juice or flesh inside the coconut.

[0003] Existing coconut hole openers suffer from poor operational stability during actual use. They often fail to maintain relative stability between the drilling component and the coconut throughout the entire drilling process, making it easy for the drilling component to tilt or shift relative to the coconut during drilling. This makes it impossible to guarantee that the drilling position meets the preset requirements, affecting operational stability and causing inconvenience to users. Utility Model Content

[0004] To address the shortcomings mentioned above in the background technology, this utility model provides a coconut hole opener with pin positioning.

[0005] The present invention adopts the following technical solution: A pin-positioned coconut hole opener, the hole opener comprising: The grip has a circumferential array of multiple receiving holes on its sidewalls. The axis of the receiving holes is parallel to the axis of the grip. One end of the receiving hole is sealed, and the other end of the receiving hole is narrowed to form a telescopic opening. The annular part of the telescopic opening is divided into a diameter-reducing part. A drive motor is disposed inside the grip handle, and the output shaft of the drive motor extends out of the grip handle; A drilling component, one end of which is used for cutting coconuts, and the other end of which is connected to the output shaft of the drive motor; The positioning pin has a conical pin at one end and a limiting part with an outwardly expanding diameter at the other end. The outer diameter of the limiting part is larger than the diameter of the telescopic opening. The positioning pin is embedded in each of the receiving holes, and the pin of the positioning pin protrudes from the telescopic opening. The elastic element is embedded in each of the accommodating holes. The two ends of the elastic element abut against the limiting part of the positioning pin and the end face of the accommodating hole away from the telescopic opening, respectively, so that the elastic force of the elastic element forms a continuous pushing force that pushes the positioning pin outward from the grip handle.

[0006] In one possible implementation, the outer surface of the grip has a raised rib at the location where the receiving hole is provided, the rib having an arc-shaped cross-section, and the receiving hole being located within the rib.

[0007] In one possible implementation, the receiving hole is located inside the side wall of the grip handle.

[0008] In one possible implementation, the hole opener further includes an end cap, the port of the receiving hole away from the telescopic opening being a mounting port, the positioning pin and the elastic element being inserted from the mounting port, the end cap and the gripping handle being connected and fixed at the end away from the telescopic opening, and the end cap covering the mounting port to seal the mounting port.

[0009] In one possible implementation, the drilling component is a hollow drill saw, one end of which is a connecting end for connecting and fixing to the output shaft of the drive motor. The other end of the hollow drill saw has circumferentially distributed saw teeth. While the gripping handle presses against the coconut, the drive motor drives the hollow drill saw to rotate, causing the saw teeth to rotate and make a hole in the coconut.

[0010] As can be seen from the above description of the structure of this utility model, compared with the prior art, this utility model has the following advantages: The grip of this utility model provides a stable assembly space for the positioning pin and the elastic element through the accommodating holes in the circumferential array on the side wall. The limiting part with an outwardly expanding diameter at one end of the positioning pin cooperates with the narrowed diameter part formed by the accommodating hole to effectively prevent the positioning pin from falling off. The elastic element generates an elastic force that continuously pushes the positioning pin outward from the grip, keeping the conical pin in an extended state, which makes it easy for the positioning pin to penetrate the coconut and complete the initial positioning when the grip is inserted into the coconut. When the drive motor drives the drilling part to rotate, each positioning pin forms a stable positioning structure to avoid the drilling part from shifting, making the drilling operation accurate and the drilling process stable and reliable. Attached Figure Description

[0011] Figure 1 A three-dimensional structural diagram of this utility model with ribs provided on the outside of the grip handle.

[0012] Figure 2 for Figure 1 A cross-sectional schematic diagram.

[0013] Figure 3 for Figure 2 An enlarged schematic diagram of point A in the middle.

[0014] Figure 4 for Figure 2 A magnified diagram of point B in the middle.

[0015] Figure 5 This is a three-dimensional structural diagram of the positioning pin.

[0016] Figure 6 This is a schematic diagram of the cross-sectional structure of a hollow drill saw.

[0017] Figure 7 A three-dimensional structural diagram showing the ribs on the outside of the grip handle.

[0018] Figure 8 This is a three-dimensional structural diagram of the present invention when the receiving hole is located inside the side wall of the grip handle.

[0019] Figure 9 This is a three-dimensional structural diagram of the grip when the receiving hole is located inside the side wall of the grip. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be described in further detail below with reference to the accompanying drawings.

[0021] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this embodiment, unless otherwise stated, "a plurality of" means two or more.

[0022] Furthermore, in this embodiment, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used to describe and clarify relative positions, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0023] This utility model provides a coconut hole opener with pin positioning, as shown in the attached figure. Figure 1 and 2 As shown, the hole opener includes a handle 1, a drive motor 2, a drilling component 3, a positioning pin 4, and an elastic element 5. The drive motor 2 is located inside the handle 1, and its output shaft extends outward from the handle 1 to connect with the drilling component 3. Multiple receiving holes 101 are arranged in a circumferential array on the sidewall of the handle 1. The axis of each receiving hole 101 is parallel to the axis of the handle 1. Each receiving hole 101 contains a positioning pin 4 and an elastic element 5. The elastic element 5 keeps the positioning pin 4 extending outward, providing structural support for precise positioning during the hole opening operation.

[0024] Preferably, the handle 1 also includes a battery 71, a control unit, and a button 72. The battery 71 supplies power to the drive motor 2, and the button 72 protrudes from the end of the handle 1 furthest from the drive motor 2. The structure of the button 72, control unit, battery 71, and drive motor 2 integrated within the handle 1 can be consistent with the structure of the handle of an electric screwdriver in the prior art. The button 72 transmits a signal to the control unit, which then controls the operating state of the drive motor 2 and thus the rotational speed of the drill bit 3 based on this signal.

[0025] Specifically, button 72 has a trigger structure that is linked to the pressing action. When the user presses button 72, the trigger structure generates a corresponding electrical signal and transmits it to the control unit. The control unit integrates a signal processing module and gear control logic to identify and count the electrical signals transmitted by button 72. The control unit determines the user's operating intention by recording the number of times button 72 is pressed and the interval between presses. For example, when the first press signal is detected, the control unit outputs a control command corresponding to the first gear speed to the drive circuit of drive motor 2, and drive motor 2 runs at the initial speed. When the second consecutive press signal is detected, the control unit switches to output a control command corresponding to the second gear speed, and drive motor 2 speed increases accordingly. When the third press signal is detected, the control unit further switches to output a control command corresponding to the third gear speed, and drive motor 2 runs at a higher speed. When the fourth press signal is detected, the control unit outputs a stop command, and drive motor 2 stops working. This method of analyzing and logically judging the button 72 signal through the control unit realizes the orderly switching of drive motor 2 between different gears. The operation logic is simple and intuitive, which can reduce the user's learning cost and improve the ease of use of the hole opener.

[0026] As attached Figure 3 and 4 As shown, one end of the receiving hole 101 is narrowed to form a telescopic opening 102, and the annular portion of the telescopic opening 102 constitutes a reduced diameter portion 11. The other end of the receiving hole 101 serves as a mounting port 103 for component assembly. The positioning pin 4 and the elastic element 5 are sequentially inserted into the receiving hole 101 through the mounting port 103 according to the assembly sequence. An end cap 6 is connected to the end of the grip 1 away from the telescopic opening 102. The end cap 6 covers the mounting port 103 to achieve a reliable seal. The end cap 6 and the grip 1 are connected by threads to form a detachable fixed connection, which ensures assembly stability and provides convenience for subsequent maintenance and disassembly.

[0027] As attached Figure 5As shown, one end of the positioning pin 4 is a conical pin 41, which is designed to facilitate precise insertion into the coconut surface for initial positioning. The other end of the positioning pin 4 is integrally formed with a limiting part 42 with an outwardly expanding diameter, the outer diameter of which is larger than the diameter of the telescopic opening 102. After the pin 41 of the positioning pin 4 passes through the telescopic opening 102 and extends outward, the limiting part 42 and the reduced diameter part 11 of the telescopic opening 102 form a matching limiting within the receiving hole 101, effectively limiting the positioning pin 4 and preventing it from falling out of the receiving hole 101. When all the receiving holes 101 are fitted with positioning pins 4, the gripping handle 1 forms a positioning structure with multiple pins 41 distributed around the outer periphery of the drilling part 3, ensuring that the drilling part 3 is located at the center of the circumference formed by the pins 41. (See attached diagram.) Figure 5 The elastic element 5 is assembled inside the receiving hole 101. The elastic element 5 is preferably a coil spring. The two ends of the elastic element 5 abut against the inner end face of the end cap 6 and the limiting part of the positioning pin 4, respectively. The elastic force generated by the elastic element 5 forms a pushing force that continuously pushes the positioning pin 4 against the outside of the grip handle 1, so that the positioning pin 4 always maintains a tight fit with the coconut surface during the entire hole-opening process, effectively avoiding the problem of hole skew caused by positioning offset during the hole-opening process.

[0028] The drilling component 3 can be a twist drill bit or a hollow drill saw 31 to adapt to different hole-opening requirements. When the drive motor 2 drives the twist drill bit to rotate, the drilling operation is completed through the helical cutting edge of the twist drill bit.

[0029] As attached Figure 6 As shown, the hollow drill saw 31 has a cylindrical structure. One end of the hollow drill saw 31 is constructed as a connecting end 32, which is used to achieve a stable connection and fixation with the output shaft of the drive motor 2. Specifically, the connecting end 32 is a prism, and a magnetic sleeve is fixed to the output shaft of the drive motor 2. The magnetic sleeve is provided with a limiting hole, the cross-section of which is a regular polygon adapted to the prism, and a magnet is fixed to the bottom surface inside the limiting hole. When installing the hollow drill saw 31, the connecting end 32 is inserted into the limiting hole, so that the magnet attracts and fixes the connecting end 32, and the structure of the limiting hole adapted to the connecting end 32 restricts the hollow drill saw 31 from rotating. The other end face of the hollow drill saw 31 has saw teeth 33 evenly distributed circumferentially. Further, an inclined guide surface 34 is provided at the end inside the hollow drill saw 31, and a chip discharge port 301 is provided on one side of the hollow drill saw 31, the chip discharge port 301 corresponding to the position of the guide surface 34 away from the saw teeth 33. When the drive motor 2 drives the hollow drill saw 31 to rotate, the saw teeth 33 on the end face of the hollow drill saw 31 cut the coconut shell to break the coconut shell and form a through hole. At the same time, the debris generated by cutting enters the interior of the hollow drill saw 31 and is discharged through the chip discharge port 301 under the guidance of the guide surface 34.

[0030] During operation, hold the handle 1 and align the drill bit 3 with the pre-drilled position on the coconut. Then, press each positioning pin 4 towards the coconut to insert the pin 41 into the coconut. The secure engagement between the pin 41 and the coconut axially positions the handle 1 relative to the coconut, ensuring that the drill bit 3 can only move and insert into the coconut along its own axis. As the handle 1 is held and the drill bit 3 is pushed into the coconut, the movement of the handle 1 towards the coconut simultaneously compresses each elastic element 5. The reaction force generated by the elastic elements 5 ensures that the positioning pin 4 remains firmly against the coconut surface, further enhancing positioning stability and preventing radial displacement of the drill bit 3 during feeding, thus ensuring accurate drilling position.

[0031] Furthermore, the accommodating hole 101 can be formed in the following two embodiments: Example 1, as shown in the appendix Figure 1 and 7 As shown, a raised rib 12 is formed on the outer surface of the grip 1 at the location where the receiving hole 101 is provided. The cross-section of the rib 12 is arc-shaped, and the receiving hole 101 is located inside the rib 12. This structure can reduce the amount of material used in the molding of the grip 1. During operation, the raised rib 12 can also increase the frictional resistance of the hand and prevent the grip 1 from rotating and shifting in the hand.

[0032] Example 2, as shown in the appendix Figure 8 and 9 As shown, the sidewall of the grip 1 can be thickened, and the receiving hole 101 is disposed inside the thickened sidewall of the grip 1. This design allows the outer surface of the grip 1 to form a complete and smooth transition, improving the neatness of the product appearance.

[0033] In summary, this invention uses a drive motor 2 to drive a drilling component 3 to open a coconut, supplemented by multiple sets of positioning pins 4 on the annular surface of the handle 1 and the cooperation of elastic elements 5 to achieve a positioning effect. The limiting part of the positioning pin 4 cooperates with the telescopic opening 102 of the receiving hole 101 to prevent the positioning pin 4 from falling out of the handle 1, and the elastic element 5 continuously pushes the positioning pin 4 towards the outside of the handle 1 within the receiving hole 101. The handle 1 is sealed at one end of the mounting opening 103 of the receiving hole 101 by a connecting end cap 6, ensuring both stable assembly and easy disassembly for maintenance. During operation, the positioning pin 4 penetrates the coconut, axially fixing the handle 1. When the drilling component 3 is pushed, the elastic element 5 is compressed, generating a reaction force that keeps the positioning pin 4 firmly against the coconut surface, further enhancing positioning stability without requiring additional fixing operations. The overall structure eliminates the need for complex positioning steps during the opening operation, resulting in precise hole positioning and neat hole walls, while also considering ease of use and convenient maintenance.

[0034] The above are merely specific embodiments of this utility model, but the design concept of this utility model is not limited thereto. Any non-substantial modifications made to this utility model using the concept of this utility model shall constitute an infringement of the protection scope of this utility model.

Claims

1. A coconut hole opener with pin positioning, characterized in that, The hole opener includes: The grip has a circumferential array of multiple receiving holes on its sidewalls. The axis of the receiving holes is parallel to the axis of the grip. One end of the receiving hole is sealed, and the other end of the receiving hole is narrowed to form a telescopic opening. The annular part of the telescopic opening is divided into a diameter-reducing part. A drive motor is disposed inside the grip handle, and the output shaft of the drive motor extends out of the grip handle; A drilling component, one end of which is used for cutting coconuts, and the other end of which is connected to the output shaft of the drive motor; The positioning pin has a conical pin at one end and a limiting part with an outwardly expanding diameter at the other end. The outer diameter of the limiting part is larger than the diameter of the telescopic opening. The positioning pin is embedded in each of the receiving holes, and the pin of the positioning pin protrudes from the telescopic opening. The elastic element is embedded in each of the accommodating holes. The two ends of the elastic element abut against the limiting part of the positioning pin and the end face of the accommodating hole away from the telescopic opening, respectively, so that the elastic force of the elastic element forms a continuous pushing force that pushes the positioning pin outward from the grip handle.

2. The hole opener as described in claim 1, characterized in that, The outer surface of the grip has raised ribs at the location where the receiving hole is provided. The cross-section of the ribs is arc-shaped, and the receiving hole is located within the ribs.

3. The hole opener as described in claim 1, characterized in that, The receiving hole is located inside the side wall of the grip handle.

4. The hole opener as described in any one of claims 1 to 3, characterized in that, The hole opener also includes an end cap, the port of the receiving hole away from the telescopic opening is a mounting port, the positioning pin and the elastic element are inserted from the mounting port, the end cap and the gripping handle are connected and fixed away from the telescopic opening, and the end cap covers the mounting port to seal the mounting port.

5. The hole opener as described in claim 1, characterized in that, The drilling component is a hollow drill saw. One end of the hollow drill saw is a connecting end, which is used to connect and fix to the output shaft of the drive motor. The end face of the other end of the hollow drill saw is circumferentially distributed with saw teeth. When the gripping handle presses against the coconut, the drive motor drives the hollow drill saw to rotate, so that the saw teeth rotate to make a hole in the coconut.

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