Hole opener convenient to clean

Abstract

The utility model relates to the technical field of tappers, and provides a tapper convenient to clean, which comprises a cutting shell and a positioning drill, the cutting shell is provided with a cutting opening and a connecting seat used for being matched with the positioning drill, the cutting opening and the connecting seat are respectively positioned at two ends of the cutting shell, and a cleaning disc is arranged in the cutting shell. The cleaning disc is provided with a matching hole for the positioning drill to penetrate through, the cleaning disc is connected with the cutting shell in a sliding mode, an elastic piece is arranged between the end, close to the connecting base, of the cleaning disc and the cutting shell, and preferably, the inner diameter of the cutting shell is 5 mm, and the cutting depth is 5 mm. According to the technical scheme, the problem that in the related technology, the hand of the human body needs to stretch into the cutting shell to take out the residual material core is solved, and the cleaning efficiency of the tapper is improved.

Description

Technical Field

[0001] This utility model relates to the field of hole opener technology, specifically to a hole opener that is easy to clean. Background Technology

[0002] A hole saw is a tool used to machine round holes in various materials. It is commonly used in modern industry and engineering and can usually be used directly by mounting it on an electric drill.

[0003] Currently, during the material processing process, the material being cut can easily leave residual cores inside the cutting shell of the hole opener. The presence of these residual cores can affect the next processing run of the hole opener. Therefore, before the next processing run, it is necessary to remove the residual cores from inside the cutting shell. However, since there are multiple cutting edges at the opening of the cutting shell, workers need to be careful during the cleaning process, otherwise there is a risk of damaging the cutting edges and injuring their hands, which in turn affects the cleaning efficiency of the hole opener. Utility Model Content

[0004] This invention proposes a hole opener that is easy to clean, which solves the problem in related technologies that require the user's hand to reach into the cutting housing to remove residual core material, thereby improving the cleaning efficiency of the hole opener.

[0005] The technical solution of this utility model is as follows:

[0006] A hole opener for easy cleaning includes a cutting housing and a positioning drill. The cutting housing has a cutting opening and a connecting seat for engaging the positioning drill. The cutting opening and the connecting seat are located at opposite ends of the cutting housing. A cleaning disc is provided inside the cutting housing. The cleaning disc has a mating hole for the positioning drill to penetrate it. The cleaning disc is slidably connected to the cutting housing. An elastic element is provided between the end of the cleaning disc near the connecting seat and the cutting housing. The connecting seat has a mounting ring groove, and the end of the elastic element away from the cleaning disc is fixedly connected to the mounting ring groove.

[0007] Furthermore, the connecting seat includes a fixed seat for connecting the cutting housing and a connecting seat for cooperating with the positioning drill. The distance between the connecting seat and the cutting opening is smaller than the distance between the fixed seat and the cutting opening. The elastic element is sleeved on the connecting seat, and the cleaning disc is provided with a clearance hole groove for avoiding the connecting seat.

[0008] Furthermore, a reinforcing layer is provided at the end of the cleaning disc away from the connecting seat. The reinforcing layer is integrally formed with the cleaning disc. The longitudinal section of the reinforcing layer is an isosceles trapezoidal structure. The width of the end of the reinforcing layer away from the cleaning disc is smaller than the width of the end of the reinforcing layer close to the cleaning disc.

[0009] Furthermore, a limiting component is provided between the cleaning disc and the cutting housing. The limiting component includes a limiting post and a limiting hole. The limiting hole is opened on the cutting housing. The limiting post is fixedly connected to one end of the cleaning disc close to the connecting seat and slidably connected in the limiting hole.

[0010] Furthermore, the limiting components are provided in a plurality of them, and each limiting component is evenly distributed around the positioning drill in a circle.

[0011] Furthermore, the limiting post includes a limiting post body and a telescopic post body. The limiting post body is slidably connected to the limiting hole. The end of the telescopic post body close to the cleaning disc is fixedly connected to the cleaning disc, and the telescopic post body is slidably connected in the limiting post body. The end of the limiting post body away from the cleaning disc is provided with a contact opening for contacting the telescopic post body.

[0012] Furthermore, the end of the limiting post away from the cleaning plate is provided with a pressing plate to facilitate workers to press it.

[0013] The working principle and beneficial effects of this utility model are as follows:

[0014] This utility model mainly includes a cutting housing and a positioning drill. The cutting housing is provided with a cleaning disc, which is provided with a mating hole for the positioning drill to penetrate it, so as to avoid the presence of the cleaning disc affecting the normal opening operation of this utility model.

[0015] The cleaning disc is slidably connected to the cutting housing. The cutting housing itself has a cutting opening and a connecting seat, located at opposite ends of the cutting housing. An elastic element is installed between the end of the cleaning disc closest to the connecting seat and the cutting housing. When residual material enters the cutting housing through the cutting opening, and the operator continues to apply downward cutting pressure, the residual material in the cutting housing exerts a force on the cleaning disc, causing it to move towards the connecting seat. This forces the elastic element to deform, accumulating elastic potential energy. Once the cutting operation is complete, the force on the cleaning disc moving away from the connecting seat ceases, the elastic element returns to its original position, pushing the cleaning disc forward and ejecting the residual material, thus completing the cleaning process. This cleaning process eliminates the need for operators to insert their hands into the cutting housing, ensuring both safety and efficiency. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of Example 1;

[0018] Figure 2 for Figure 1 A sectional view;

[0019] Figure 3 This is a schematic diagram of the structure of Example 2;

[0020] Figure 4 for Figure 3 A sectional view.

[0021] In the picture:

[0022] 1. Cutting shell; 11. Cutting opening; 12. Connecting seat; 121. Fixed seat; 122. Connecting seat; 123. Mounting ring groove; 2. Positioning drill; 3. Cleaning disc; 31. Mating hole; 32. Clearance hole groove; 4. Elastic element; 5. Reinforcing layer; 6. Limiting component; 61. Limiting post; 611. Limiting post body; 6111. Contact opening; 6112. Pressing plate; 612. Telescopic post body; 62. Limiting hole. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] like Figures 1-2 As shown, this embodiment proposes a hole opener that is easy to clean, mainly including a cutting housing 1 and a positioning drill 2. The cutting housing 1 has a cutting opening 11 and a connecting seat 12 for cooperating with the positioning drill 2. Preferably, the positioning drill 2 and the connecting seat 12 are fixedly connected. The specific fixed connection method depends on which existing electric drill device this embodiment is used in, and will not be described in detail in this embodiment.

[0026] The cutting opening 11 and the connecting seat 12 are located at both ends of the cutting housing 1. The cutting housing 1 is provided with a cleaning disc 3. The cleaning disc 3 is provided with a mating hole 31 for the positioning drill 2 to penetrate it, so as to avoid the presence of the cleaning disc 3 affecting the normal drilling operation of this embodiment. The cleaning disc 3 is slidably connected to the cutting housing 1. An elastic element 4 is provided between the end of the cleaning disc 3 close to the connecting seat 12 and the cutting housing 1. In this way, during the cutting operation of the cutting housing 1, the residual material core enters the interior of the cutting housing 1 along the cutting opening 11, squeezes the cleaning disc 3, and forces the cleaning disc 3 to move in the direction of the connecting seat 12, thereby squeezing the elastic element 4, causing the elastic element 4 to deform and accumulate elastic potential energy. Until the cutting housing 1 completes the cutting operation and the residual material core no longer squeezes and pushes the cleaning disc 3, the cleaning disc 3 will move away from the connecting seat 12 under the action of the elastic element 4 which begins to reset, and push the residual material core out of the cutting housing 1, thus completing the cleaning operation. The cleaning process relies on the deformation of the elastic element 4 to carry out autonomously, eliminating the need for workers to reach into the cutting housing 1 to remove residual core material, which improves both the safety and efficiency of the cleaning work.

[0027] The connecting seat 12 includes a fixed seat 121 for connecting the cutting housing 1 and a connecting seat 122 for cooperating with the positioning drill 2. The elastic element 4 is sleeved on the connecting seat 122. In this embodiment, the elastic element 4 is preferably a ring-shaped elastic element such as a compression spring, which facilitates the sleeved operation of the elastic element 4 on the connecting seat 122. After the elastic element 4 is sleeved on the connecting seat 122, the constraint effect of the connecting seat 122 on the elastic element 4 can be used to prevent the elastic element 4 from displacing in its radial direction during deformation, thus ensuring the stability of the overall structure of the elastic element 4.

[0028] The distance between the connecting seat 122 and the cutting opening 11 is less than the distance between the fixed seat 121 and the cutting opening 11, ensuring that there is sufficient contact area between the connecting seat 122 and the elastic element 4, ensuring the constraint stability of the connecting seat 122 on the elastic element 4. In addition, the cleaning disc 3 is provided with a clearance hole groove 32 to avoid interference between the connecting seat 122 and the cleaning disc 3, ensuring that there is sufficient contact area between the cleaning disc 3 and the cutting housing 1 after the cleaning disc 3 moves to the limit distance, so as to help disperse the force on the cleaning disc 3.

[0029] The connecting seat 12 is provided with a mounting ring groove 123. The end of the elastic element 4 away from the cleaning disc 3 is fixedly connected in the mounting ring groove 123. The mounting ring groove 123 is located between the connecting seat body 122 and the fixed seat body 121. That is, the presence of the mounting ring groove 123 further expands the radial surface area (contact area) of the connecting seat body 122 for constraining the elastic element 4, and further improves the constraint stability of the connecting seat body 122 on the elastic element 4.

[0030] Meanwhile, a reinforcing layer 5 is provided at the end of the cleaning disc 3 furthest from the connecting seat 12 to prevent the corresponding part of the cleaning disc 3 from being too thin due to the presence of the avoidance slot 32, which would affect the structural strength of the cleaning disc 3. The reinforcing layer 5 is integrally formed with the cleaning disc 3 to ensure the connection strength between the two. The longitudinal section of the reinforcing layer 5 is an isosceles trapezoidal structure. The width of the end of the reinforcing layer 5 furthest from the cleaning disc 3 is smaller than the width of the end of the reinforcing layer 5 close to the cleaning disc 3. That is, the strength of the reinforcing layer 5 itself is guaranteed by the structural stability of the isosceles trapezoidal structure. Moreover, the longitudinal section of the cleaning disc 3 and the reinforcing layer 5 after being combined can form a "T" shape, so that the cleaning disc 3 can also obtain the characteristic of the "T" shape structure to effectively disperse stress, further improving the overall structural strength of the cleaning disc 3.

[0031] To prevent the cleaning disc 3 from being affected by the inertial force caused by the rotation of the cutting housing 1, and from continuing to rotate within the cutting housing 1 even when the cutting housing 1 stops rotating, thus avoiding friction or impact between the cleaning disc 3 and the cutting housing 1, which could cause damage, deformation, or even destruction, a limiting component 6 is provided between the cleaning disc 3 and the cutting housing 1 in this embodiment. Specifically, the limiting component 6 includes a limiting post 61 and a limiting hole 62. The limiting hole 62 is opened on the cutting housing 1. The limiting post 61 is fixedly connected to one end of the cleaning disc 3 near the connecting seat 12 and slidably connected in the limiting hole 62. That is, the limiting component 6 achieves the limiting function of the cleaning disc 3 through the hole-shaft cooperation. Furthermore, the sliding connection between the limiting post 61 and the limiting hole 62 effectively avoids the presence of the limiting component 6 from affecting the sliding movement of the cleaning disc 3 within the cutting housing 1, ensuring the feasibility of this embodiment. Moreover, when the elastic member 4 cannot effectively eject the residual core from the cutting housing 1, the cleaning work can be completed by manually pressing the limiting post 61.

[0032] The end of the limiting post 61 away from the cleaning plate 3 is provided with a pressing plate 6112 for easy pressing by the operator. The pressing plate 6112 is preferably integrally formed with the limiting post 61 to ensure the connection strength between the two. The distance between the end of the pressing plate 6112 away from the connecting seat 12 and the connecting seat 12 is greater than the distance between the outer diameter of the cutting housing 1 and the connecting seat 12, so that the operator can drive the limiting post 61 to move down by pressing the pressing plate 6112.

[0033] Several limit components 6 are provided, and each limit component 6 is evenly distributed around the positioning drill 2 in a circle. Multiple limit components 6 share the workload, reducing the burden on a single limit component 6 and preventing the entire limit system from failing due to the failure of a single limit component 6, thereby improving the overall reliability and stability of the system. In addition, multiple limit components 6 can provide redundant protection, ensuring that when one limit component 6 fails, other limit components 6 can still work effectively, thereby improving safety and preventing accidents.

[0034] Preferably, in this embodiment, the inner diameter of the cutting housing 11 is 5mm, and the cutting depth (the inner wall height of the cutting housing 11) is 5mm, so as to complete the machining of the workpiece of the corresponding size. At the same time, the corresponding parameters of this embodiment should be adjusted according to the actual machining requirements. Specifically, it should be determined according to the actual machining requirements (workpiece size), which will not be elaborated in this embodiment.

[0035] Example 2

[0036] Based on Example 1, such as Figures 3-4 As shown, the limiting post 61 in this embodiment includes a limiting post body 611 and a telescopic post body 612. The limiting post body 611 is slidably connected to the limiting hole 62. The pressing plate 6112 in this embodiment is integrally formed with the limiting post body 611. The end of the telescopic post body 612 close to the cleaning disc 3 is fixedly connected to the cleaning disc 3, and the telescopic post body 612 is slidably connected to the limiting post body 611. That is, the limiting post 61 in this embodiment has a telescopic function. Compared with the cutting shell 1 in embodiment 1, the cutting shell 1 in this embodiment can therefore have a longer and deeper cutting depth, effectively ensuring the practicality of this embodiment. In order to facilitate the telescopic post body 612 to extend and retract, the end of the limiting post body 611 away from the cleaning disc 3 is provided with a contact opening 6111 for contacting the telescopic post body 612. Preferably, an external object such as a hexagonal wrench is inserted into the contact opening 6111, so that the telescopic post body 612 is subjected to force to drive the cleaning disc 3 to move and complete the cleaning work.

[0037] If necessary, the longitudinal section of the telescopic column 612 in this embodiment should be a "T" shaped structure. Correspondingly, the longitudinal section of the sliding hole in the limiting column 611 is also a "T" shaped structure. Together with the pressing plate 6112, it can constrain the axial sliding distance of the limiting column 611, prevent the limiting column 611 from detaching from the cutting shell 1, and ensure the stability and integrity of the overall structure of this embodiment.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hole opener for easy cleaning, comprising a cutting housing (1) and a positioning drill (2), wherein the cutting housing (1) has a cutting opening (11) and a connecting seat (12) for engaging the positioning drill (2), the cutting opening (11) and the connecting seat (12) being located at opposite ends of the cutting housing (1), characterized in that, The cutting housing (1) is provided with a cleaning disc (3) inside. The cleaning disc (3) is provided with a mating hole (31) for the positioning drill (2) to penetrate it. The cleaning disc (3) is slidably connected to the cutting housing (1). An elastic element (4) is provided between the end of the cleaning disc (3) close to the connecting seat (12) and the cutting housing (1). The connecting seat (12) is provided with an installation ring groove (123), and the end of the elastic element (4) away from the cleaning disc (3) is fixedly connected in the installation ring groove (123).

2. The easy-to-clean hole opener according to claim 1, characterized in that, The connecting seat (12) includes a fixed seat (121) for connecting the cutting housing (1) and a connecting seat (122) for cooperating with the positioning drill (2). The distance between the connecting seat (122) and the cutting opening (11) is smaller than the distance between the fixed seat (121) and the cutting opening (11). The elastic element (4) is sleeved on the connecting seat (122). The cleaning disc (3) is provided with a clearance slot (32) for avoiding the connecting seat (122).

3. The easy-to-clean hole opener according to claim 2, characterized in that, The cleaning disc (3) is provided with a reinforcing layer (5) at the end away from the connecting seat (12). The reinforcing layer (5) is integrally formed with the cleaning disc (3). The longitudinal section of the reinforcing layer (5) is an isosceles trapezoidal structure. The width of the end of the reinforcing layer (5) away from the cleaning disc (3) is smaller than the width of the end of the reinforcing layer (5) close to the cleaning disc (3).

4. The easy-to-clean hole opener according to claim 1, characterized in that, A limiting component (6) is provided between the cleaning disc (3) and the cutting housing (1). The limiting component (6) includes a limiting post (61) and a limiting hole (62). The limiting hole (62) is opened on the cutting housing (1). The limiting post (61) is fixedly connected to one end of the cleaning disc (3) close to the connecting seat (12) and slidably connected in the limiting hole (62).

5. The easy-to-clean hole opener according to claim 4, characterized in that, The limiting component (6) is provided in a plurality of such components, and each limiting component (6) is evenly distributed around the positioning drill (2) in a circle.

6. The easy-to-clean hole opener according to claim 4, characterized in that, The limiting post (61) includes a limiting post body (611) and a telescopic post body (612). The limiting post body (611) is slidably connected to the limiting hole (62). The end of the telescopic post body (612) close to the cleaning disc (3) is fixedly connected to the cleaning disc (3), and the telescopic post body (612) is slidably connected in the limiting post body (611). The end of the limiting post body (611) away from the cleaning disc (3) is provided with a contact opening (6111) for contacting the telescopic post body (612).

7. The easy-to-clean hole opener according to claim 4 or 6, characterized in that, The end of the limiting post (61) away from the cleaning plate (3) is provided with a pressing plate (6112) for easy pressing by the staff.

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