Dustproof tapper protective cover

Abstract

The utility model discloses a dustproof tapper protection cover which comprises an installation part and an installation drill bit installed in the installation part in a clamped mode, and a cylindrical cover body is installed on the outer side of the installation part in a clamped mode. The dustproof tapper protection cover is provided with the installation part, the installation drill bit and the cylindrical cover body, the installation drill bit and the cylindrical cover body are installed on the outer side of the installation part, the installation part can be in butt joint with a tapper, the installation drill bit and the cylindrical cover body are driven by the installation part to rotate, and therefore the punching process is completed; the installation convenience of the installation drill bit and the cylindrical cover body is guaranteed, the installation cylinder part can slide in the movement groove through the limiting block, the right end of the installation cylinder part is located at the right end of the cylindrical cover body, sealing protection can be conveniently conducted on the right side of the cylindrical cover body, and the dustproof and protection effects of the tapper in work are improved; and the left side of the moving cylinder is in contact with the butt joint sleeve, and the right side of the contact cylinder is clamped with the outer side of the mounting cylinder piece, so that the rotating working stability of the mounting cylinder piece can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hole openers, in particular to a dustproof hole opener protective cover. Background Art

[0002] A hole opener is also called a hole saw or hole saw. It refers to a special circular saw for cutting circular holes in modern industry or engineering. It is simple and flexible to operate, easy to carry, safe, and widely used. The hole opener will generate dust during the process of opening holes in the wall. Therefore, a dustproof protective cover will be set on the outer side of the output end of the hole opener to achieve dustproof effect and have a certain protective effect. However, the existing hole opener protective cover still has certain use defects during use, such as:

[0003] The utility model announcement number CN209366941U discloses a hole opener with a protective device, wherein the covering device protects the drilling teeth on the cylindrical cover body, and the protective cover is plugged into the drilling teeth, thereby preventing the drilling teeth from being worn due to collisions between hole openers during transportation, which in turn leads to poor hole opening effects. After the slider is matched with the slide groove, the slider is controlled by a connecting plate penetrated on the side wall of the protective cover, and the sliding hole on the side wall of the protective cover guides the connecting plate to achieve corresponding matching between the slider and the positioning groove, so that when the slider is slid into the positioning groove, the protective cover can be fixed to prevent it from falling off the cylindrical cover body;

[0004] In the above document, after the left cover body and the right cover body are installed on the outside of the cylindrical cover body, the left cover body and the right cover body are installed by means of plug rods and slots to complete the docking between the left and right groups of cover bodies. During the operation of the hole opener, the left cover body and the right cover body will slide up and down on the outside of the cylindrical cover body to facilitate punching of the cylindrical cover body. The plug rods and slots inside the left cover body and the right cover body are also connected by up and down plug rods, which may easily cause the left cover body and the right cover body to separate during the movement, affecting the stability of the hole opener protective cover.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original protective cover structure. Utility Model Content

[0006] The purpose of the utility model is to provide a dustproof hole opener protective cover to solve the problem proposed in the above-mentioned background technology that the left cover body and the right cover body slide up and down on the outside of the cylindrical cover body to facilitate punching holes in the cylindrical cover body, while the insertion rods and slots inside the left cover body and the right cover body are also connected by upper and lower snap-fitting, which easily causes the left cover body and the right cover body to separate during movement, affecting the stability of the hole opener protective cover when used.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dustproof hole opener protective cover, comprising a mounting piece and a mounting drill bit mounted in the mounting piece;

[0008] A cylindrical cover body is mounted on the outer side of the mounting piece, and a protective structure is arranged on the outer side of the cylindrical cover body. The protective structure can seal and protect the working range of the mounting drill bit and the cylindrical cover body.

[0009] Preferably, the protective structure is provided with an arc-shaped shield 1 and an arc-shaped shield 2 inside, wherein the arc-shaped shield 1 and the arc-shaped shield 2 are sleeved on the outside of the cylindrical shield body, and the arc-shaped shield 1 and the arc-shaped shield 2 are annular structures when viewed from above after being connected.

[0010] Preferably, a sliding block is fixedly mounted on one side of the arc-shaped shield 1 and the arc-shaped shield 2 close to the cylindrical shield body, a moving groove is slidably mounted on the outer side of the cylindrical shield body, and the sliding block is located inside the moving groove.

[0011] Preferably, a sliding ring is provided inside the protective structure, and the sliding ring is slidably installed on the outside of the curved shield one and the arc-shaped shield two, and a moving cylinder is slidably installed at an equal angle inside the sliding ring, and a contact cylinder is slidably installed inside the moving cylinder, and support springs are provided inside the contact cylinder and the moving cylinder.

[0012] Preferably, the protective structure is provided with an installation cylinder and a docking sleeve inside, and the installation cylinder and the docking sleeve are arranged on the outside of the arc-shaped shield one and the arc-shaped shield two, and the installation cylinder is located on the right side of the docking sleeve, and the installation cylinder and the docking sleeve are threadedly connected to the arc-shaped shield one and the arc-shaped shield two respectively.

[0013] Preferably, a support structure is provided inside the installation cylinder, and the support structure can improve the stability of the movement of the installation cylinder;

[0014] A rotation groove and a lubricating ball are arranged inside the supporting structure. The rotation groove is opened inside the mounting cylinder, and the lubricating ball is nested and installed inside the rotation groove.

[0015] Preferably, a rotating ring is rotatably installed inside the rotating groove, and a limit block is slidably installed inside the rotating ring, and a return spring is fixedly installed on one end of the limit block close to the rotating ring, and the side of the limit block close to the cylindrical cover body is located inside the moving groove.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. A mounting piece, a mounting drill bit and a cylindrical cover are provided. After the mounting drill bit and the cylindrical cover are installed on the outside of the mounting piece, the mounting piece can be docked with the hole opener and the mounting drill bit and the cylindrical cover are driven to rotate by the mounting piece, thereby completing the drilling process, ensuring the convenience of installing the mounting drill bit and the cylindrical cover;

[0018] 2. The installation cylinder can slide inside the motion groove through the limit block, and the right end of the installation cylinder is located at the right end of the right end of the cylindrical cover body, which is convenient for sealing and protecting the right side of the cylindrical cover body, thereby improving the dustproof and protective effect of the hole opener;

[0019] 3. Furthermore, a moving cylinder and a contact cylinder are provided, the left side of the moving cylinder contacts the docking sleeve, and the right side of the contact cylinder is engaged with the outer side of the mounting cylinder, which can ensure the stability of the rotation of the mounting cylinder;

[0020] 4. Furthermore, a rotating ring is provided, which can support the cylindrical cover body and the mounting cylinder, and cooperate with the arc-shaped shield 1 and the arc-shaped shield 2 to support the mounting cylinder, so as to ensure the balance of force on the cylindrical cover body;

[0021] 5. Furthermore, the arc-shaped shield 1 and the arc-shaped shield 2 can limit the movement position of the arc-shaped shield 1 and the arc-shaped shield 2 through the movement of the sliding block and the movement groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the sliding ring of the utility model;

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0024] Figure 3 It is a schematic diagram of the partial three-dimensional structure of the rotating ring of the utility model;

[0025] Figure 4 This is a schematic diagram of the front view structure of the utility model;

[0026] Figure 5 This is a left-side structural schematic diagram of the utility model;

[0027] Figure 6 This is a schematic diagram of the front cross-sectional structure of the motion tube of the utility model;

[0028] Figure 7 This is a schematic diagram of the front view structure of the limit block of the utility model.

[0029] In the figure: 1. Mounting part; 2. Mounting drill bit; 3. Cylindrical cover body; 4. Arc-shaped shield 1; 5. Arc-shaped shield 2; 6. Sliding block; 7. Moving groove; 8. Mounting cylinder; 9. Sliding ring; 10. Moving cylinder; 11. Contact cylinder; 12. Support spring; 13. Docking sleeve; 14. Rotating groove; 15. Lubricating ball; 16. Rotating ring; 17. Limit block; 18. Reset spring. DETAILED DESCRIPTION

[0030] 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 only 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.

[0031] Embodiment 1: This embodiment Figure 1-Figure 6 As shown, in order to solve the problem that the existing hole opener protective cover assembly is easy to fall off during use, the working process of the dustproof hole opener protective cover on the protective structure is disclosed, so that the outer protective structure of the hole opener can work stably, and the specific contents are as follows:

[0032] A mounting member 1 and a mounting drill bit 2 mounted and engaged inside the mounting member 1;

[0033] The outer side of the mounting member 1 is clamped with a cylindrical cover 3, and a protective structure is arranged on the outer side of the cylindrical cover 3, and the protective structure can seal and protect the working range of the mounting drill bit 2 and the cylindrical cover 3;

[0034] The protective structure is provided with an arc-shaped shield 1 4 and an arc-shaped shield 2 5, which are sleeved on the outside of the cylindrical shield body 3, and the arc-shaped shield 1 4 and the arc-shaped shield 2 5 are connected to each other to form a ring-shaped structure in a top view;

[0035] The arc shield 1 4 and the arc shield 2 5 are fixedly mounted with a sliding block 6 on one side close to the cylindrical shield body 3, and a moving groove 7 is slidably mounted on the outer side of the cylindrical shield body 3, and the sliding block 6 is located inside the moving groove 7;

[0036] A sliding ring 9 is provided inside the protective structure, and the sliding ring 9 is slidably installed on the outside of the arc-shaped shield 1 4 and the arc-shaped shield 2 5, and a moving cylinder 10 is slidably installed inside the sliding ring 9 at an equal angle, and a contact cylinder 11 is slidably installed inside the moving cylinder 10, and support springs 12 are provided inside the contact cylinder 11 and the moving cylinder 10.

[0037] When using the dustproof hole opener protective cover, it is necessary to first install the mounting drill bit 2 and the cylindrical cover body 3 on the outside of the mounting member 1. Before that, the protective structure needs to be installed on the outside of the cylindrical cover body 3. During the installation of the protective structure, the mounting member 1 needs to be installed on the output end of the hole opener, and then the protective cover can be installed on the outside of the hole opener. During the installation of the protective structure, it is necessary to first sleeve the arc-shaped shield 1 4 and the arc-shaped shield 2 5 on the outside of the cylindrical cover body 3, and it is necessary to sleeve the sliding ring 9 on the outside of the arc-shaped shield 1 4 and the arc-shaped shield 2 5. At this time, the mounting cylinder 8 can be sleeved on The outer side of the cylindrical cover body 3 is rotated, and the installation cylinder 8 will be limited on the outer side of the arc shield 1 4 and the arc shield 2 5 during the rotation process. At this time, the moving cylinder 10 and the contact cylinder 11 can be slidably installed in the interior of the sliding ring 9, and the contact cylinder 11 will be engaged with the installation cylinder 8. At this time, the docking sleeve 13 can be rotatably installed on the outer side of the arc shield 1 4 and the arc shield 2 5. At this time, the installation process of the protection structure is completed. The arc shield 1 4 and the arc shield 2 5 are limited by installing the cylinder 8, the sliding ring 9 and the docking sleeve 13, which effectively improves the working stability of the protection structure.

[0038] Embodiment 2: This embodiment is as follows Figure 2-Figure 4 and Figure 7 As shown, in order to solve the problem that the existing hole opener protective cover is difficult to balance and support during operation, the working process of the internal support structure of the dustproof hole opener protective cover is disclosed, and the installation cylinder 8 outside the hole opener can work stably. The specific contents are as follows:

[0039] A support structure is provided inside the installation cylinder 8, and the support structure can improve the stability of the movement of the installation cylinder 8;

[0040] A rotation groove 14 and a lubricating ball 15 are provided inside the supporting structure. The rotation groove 14 is opened inside the mounting cylinder 8, and the lubricating ball 15 is nested and installed inside the rotation groove 14.

[0041] A rotating ring 16 is rotatably installed inside the rotating groove 14, and a limit block 17 is slidably installed inside the rotating ring 16, and a return spring 18 is fixedly installed on one end of the limit block 17 close to the rotating ring 16, and the side of the limit block 17 close to the cylindrical cover body 3 is located inside the moving groove 7.

[0042] During the installation of the installation cylinder 8, the limit block 17 will be squeezed by the cylindrical cover 3 and move, and during the movement of the limit block 17, it will move toward the inside of the rotating groove 14, and during the movement of the limit block 17, the return spring 18 will be squeezed and the return spring 18 will be squeezed, and after the limit block 17 moves to the outside of the moving groove 7, the contracted return spring 18 will expand and push the limit block 17 to move to the inside of the moving groove 7, and then the installation cylinder 8 can be rotated, and during the rotation of the installation cylinder 8, the rotating ring 16 will rotate inside the rotating groove 14, and the rotating ring 16 will make the lubricating ball 15 rotate inside the installation cylinder 8, so that the rotating ring 16 supports the installation cylinder 8, effectively ensuring the smooth movement of the installation cylinder 8.

[0043] Embodiment 3: This embodiment is as follows Figure 2-Figure 6 As shown, in order to solve the problem of poor dustproof effect of the existing hole opener, the dustproof process of the dustproof hole opener protective cover during operation is disclosed, so that the hole opener can effectively prevent dust, and the specific contents are as follows:

[0044] The protective structure is internally provided with an installation cylinder 8 and a docking sleeve 13, which are sleeved on the outside of the arc-shaped shield 1 4 and the arc-shaped shield 2 5, and the installation cylinder 8 is located on the right side of the docking sleeve 13, and the installation cylinder 8 and the docking sleeve 13 are threadedly connected to the arc-shaped shield 1 4 and the arc-shaped shield 2 5 respectively.

[0045] During the operation of the dustproof hole opener, the mounting member 1 will rotate along with the hole opener, and the mounting member 1 will drive the mounting drill bit 2 and the cylindrical cover body 3 to rotate, and during the rotation of the cylindrical cover body 3, the arc-shaped shield 1 4 and the arc-shaped shield 2 5 will be driven to rotate through the sliding block 6, and the limiting block 17 will drive the mounting cylinder 8 to rotate, and during the rotation of the cylindrical cover body 3, it will enter the interior of the wall, and the sliding block 6 and the limiting block 17 will slide in the moving groove 7, so as to facilitate the contact between the mounting cylinder 8 and the outside of the wall, and during the left and right movement of the mounting cylinder 8, the moving cylinder 10 will slide on the outside of the contact cylinder 11, so as to facilitate the mounting cylinder 8 to achieve a dustproof effect and increase the overall practicality.

[0046] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0047] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dustproof hole opener protective cover, comprising a mounting member (1) and a mounting drill bit (2) mounted in engagement with the mounting member (1); Features: The mounting member (1) is also provided with a cylindrical cover (3) which is mounted on the outer side thereof, and a protective structure is provided on the outer side of the cylindrical cover (3), and the protective structure can seal and protect the working range of the mounting drill bit (2) and the cylindrical cover (3); The protective structure is provided with an arc-shaped protective cover 1 (4) and an arc-shaped protective cover 2 (5) inside, the arc-shaped protective cover 1 (4) and the arc-shaped protective cover 2 (5) are sleeved on the outside of the cylindrical cover body (3), and the arc-shaped protective cover 1 (4) and the arc-shaped protective cover 2 (5) are connected to form a ring-shaped structure when viewed from above; A sliding block (6) is fixedly mounted on one side of the arc-shaped shield 1 (4) and the arc-shaped shield 2 (5) close to the cylindrical shield body (3); a moving groove (7) is slidably mounted on the outer side of the cylindrical shield body (3); and the sliding block (6) is located inside the moving groove (7); A sliding ring (9) is arranged inside the protective structure, and the sliding ring (9) is slidably mounted on the outside of the arc-shaped shield (4) and the arc-shaped shield (5), and a moving cylinder (10) is slidably mounted inside the sliding ring (9) at an equal angle, and a contact cylinder (11) is slidably mounted inside the moving cylinder (10), and a supporting spring (12) is arranged inside the contact cylinder (11) and the moving cylinder (10); The protective structure is provided with a mounting cylinder (8) and a docking sleeve (13) inside. The mounting cylinder (8) and the docking sleeve (13) are sleeved on the outside of the arc-shaped protective cover 1 (4) and the arc-shaped protective cover 2 (5), and the mounting cylinder (8) is located on the right side of the docking sleeve (13). The mounting cylinder (8) and the docking sleeve (13) are respectively threadedly connected to the arc-shaped protective cover 1 (4) and the arc-shaped protective cover 2 (5).

2. The dustproof hole opener protective cover according to claim 1, characterized in that: A support structure is provided inside the installation cylinder (8), and the support structure can improve the stability of the movement of the installation cylinder (8); A rotation groove (14) and a lubricating ball (15) are arranged inside the support structure; the rotation groove (14) is opened inside the mounting cylinder (8), and the lubricating ball (15) is nested and installed inside the rotation groove (14).

3. The dustproof hole opener protective cover according to claim 2, characterized in that: A rotating ring (16) is rotatably mounted inside the rotating groove (14), and a limit block (17) is slidably mounted inside the rotating ring (16). A return spring (18) is fixedly mounted on one end of the limit block (17) close to the rotating ring (16), and a side of the limit block (17) close to the cylindrical cover body (3) is located inside the moving groove (7).

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