A protective cover device for a drill and tap machine

By designing an easy-to-operate protective cover device, the problem of cumbersome drill bit replacement and protective cover installation and removal in drilling and tapping machines has been solved, achieving high replacement efficiency and convenient installation and removal, thus improving work efficiency.

CN224333918UActive Publication Date: 2026-06-09CHENGDU KAIJIA YUANYUAN MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU KAIJIA YUANYUAN MASCH CO LTD
Filing Date
2025-06-18
Publication Date
2026-06-09

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Abstract

The utility model discloses a kind of protective cover devices for drilling and tapping machine, apply in drilling and tapping machine field, including fixed plate, the bottom of the fixed plate is provided with telescopic mechanism, the bottom of telescopic mechanism is provided with protective cover, the surface of the protective cover is hinged with cover;The utility model moves by pressing the pressing block and makes pressing rod drive first clamping rod, first clamping rod moves and makes first clamping rod and clamping hole disengage from clamping, the mode of opening cover and replacing drill bit, can reach the purpose of facilitating replacement drill bit, reduce workload, improve the efficiency of replacement, facilitate use, the utility model moves by moving the knob and makes second clamping rod, second clamping rod moves and makes second clamping rod and clamping groove disengage from clamping, the mode of taking down fixed pin, taking down protective cover, can reach the purpose of facilitating protective cover assembly and disassembly, reduce workload, improve work efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of drilling and tapping machines, and in particular to a protective cover device for drilling and tapping machines. Background Technology

[0002] A search of Chinese patents revealed publication number CN222755026U, which discloses a protective device for a high-speed drilling and tapping machine. The device includes a tapping machine body with a rotating shaft on which a protective mechanism is mounted. The protective mechanism can enclose the drill bit on the rotating shaft and can be raised and lowered relative to the drill bit. The protective mechanism includes a lifting assembly mounted on the rotating shaft, with a protective cover detachably mounted below the lifting assembly. The lifting assembly includes a ring rotatably connected to the rotating shaft via a bearing. A support rod is welded to the outer wall of the ring, and a sleeve is detachably mounted at the bottom end of the support rod. This invention relates to the field of drilling and tapping machine technology. By installing a lifting assembly on the rotating shaft of the tapping machine body and a protective cover on the lifting assembly, the protective cover can always enclose the drill bit, preventing it from being exposed and effectively protecting it from accidental contact with the drill bit by workers, making it safer and more reliable to use.

[0003] In summary, the current protective device is inconvenient for drill bit replacement. It protects the drill bit by covering it with a protective cover, which is located inside the cover. Replacing the drill bit requires removing the cover, replacing the bit, and then reinstalling the cover. This process is cumbersome, increases workload, and reduces efficiency. Furthermore, the cover is bolted and requires tools for installation and removal, further complicating the process and reducing efficiency. To address these issues, we propose a protective cover device for drilling rigs. Utility Model Content

[0004] The purpose of this invention is to provide a protective cover device for drilling machines, which has the advantages of facilitating drill bit replacement and easy installation and removal of the protective cover.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a protective cover device for a drilling machine, comprising a fixed plate, a telescopic mechanism provided at the bottom of the fixed plate, a protective cover provided at the bottom of the telescopic mechanism, a cover hinged to the surface of the protective cover, a first fixed block and a second fixed block respectively bolted to the surface of the protective cover and the cover, a fixed rod bolted to the surface of the first fixed block, a pressing rod slidably sleeved on the inner wall of the second fixed block, a first spring fixedly connected between one end of the pressing rod and the inner wall of the second fixed block by a spring fixing member, a first snap-fit ​​rod bolted to the surface of the pressing rod, and a snap-fit ​​hole provided on the surface of the fixed rod, and the snap-fit ​​hole snaps into the first snap-fit ​​rod.

[0006] By adopting the above technical solution, pressing the pressing block causes the pressing rod to move the first locking rod. The movement of the first locking rod causes it to disengage from the locking hole, allowing the cover to be opened for drill bit replacement. This method facilitates drill bit replacement, reduces workload, improves replacement efficiency, and is convenient to use.

[0007] The present invention is further configured such that: a mounting base is bolted to the bottom of the telescopic mechanism; a mounting rod is slidably sleeved on the inner wall of the mounting base, and the bottom of the mounting rod is bolted to the top of the protective cover; a fixing pin is provided through the mounting rod and the inner wall of the mounting base; a second locking rod is slidably sleeved on the inner wall of the mounting base; a second spring is fixedly connected between one end of the second locking rod and the inner wall of the mounting base by a spring fixing member; a locking groove is provided on the surface of the fixing pin, and the locking groove is locked with one end of the second locking rod; and a toggle block is bolted to the surface of the second locking rod.

[0008] By adopting the above technical solution, the second locking rod is moved by moving the toggle block. The movement of the second locking rod disengages it from the locking groove, allowing the fixing pin to be removed and the protective cover to be taken off. This method facilitates the installation and removal of the protective cover, reduces workload, and improves work efficiency.

[0009] The present invention is further configured such that: the telescopic mechanism includes a guide rod, the guide rod is slidably sleeved with the inner wall of the fixed plate, and the bottom of the guide rod is bolted to the top of the mounting base; a third spring is sleeved on the surface of the guide rod, and the third spring is located between the fixed plate and the mounting base.

[0010] By adopting the above technical solution and setting up a telescopic mechanism, the protective cover can be raised and lowered easily, making it convenient to use.

[0011] The present invention is further configured such that: a support rod is bolted to the top of the fixing plate, and a mounting plate is bolted to the top of the fixing rod.

[0012] The above technical solution facilitates installation by using support rods and mounting plates.

[0013] The present invention is further configured such that an anti-detachment head is bolted to the top of the guide rod.

[0014] By adopting the above technical solution, the guide rod is prevented from slipping off by setting an anti-slip head, thus ensuring stability.

[0015] The present invention is further configured such that one end of both the first and second locking rods is wedge-shaped.

[0016] By adopting the above technical solution, one end of both the first and second locking rods is wedge-shaped, which facilitates fixing.

[0017] The present invention is further configured such that a pressing block is bolted to one end of the pressing rod.

[0018] By adopting the above technical solution, the pressing block is set to facilitate the movement of the pressing rod.

[0019] The present invention is further configured such that the surface of the actuating block is provided with anti-slip texture.

[0020] By adopting the above technical solution, anti-slip texture is set to prevent hand slippage and facilitate operation.

[0021] In summary, this utility model has the following beneficial effects:

[0022] 1. This utility model achieves the purpose of conveniently replacing drill bits by pressing the pressing block to move the pressing rod and drive the first locking rod to move. The movement of the first locking rod causes the first locking rod to disengage from the locking hole, opening the cover and replacing the drill bit. This reduces the workload, improves the replacement efficiency, and is convenient to use.

[0023] 2. This utility model uses a movable toggle block to move the second locking rod, which disengages from the locking groove, allowing the fixing pin to be removed and the protective cover to be taken off. This method facilitates the installation and removal of the protective cover, reduces workload, and improves work efficiency. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural view of the present invention;

[0025] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0026] Figure 3 This is a top sectional view of the structure of this utility model;

[0027] Figure 4 This is a utility model Figure 2 Enlarged view of the structure at point A in the middle;

[0028] Figure 5 This is a utility model Figure 3 Enlarged view of the structure at point B in the middle;

[0029] Figure 6 This is a diagram illustrating the installation and usage effect of the structure of this utility model.

[0030] Reference numerals: 1. Fixing plate; 2. Telescopic mechanism; 3. Protective cover; 4. Cover; 5. First fixing block; 6. Second fixing block; 7. Fixing rod; 8. Pressing rod; 9. First spring; 10. First locking rod; 11. Locking hole; 12. Mounting base; 13. Mounting rod; 14. Fixing pin; 15. Second locking rod; 16. Second spring; 17. Locking groove; 18. Actuating block; 19. Guide rod; 20. Third spring; 21. Support rod; 22. Mounting plate; 23. Anti-detachment head; 24. Pressing block; 25. Anti-slip texture. Detailed Implementation

[0031] The present invention will be further described in detail below with reference to the accompanying drawings.

[0032] Example 1:

[0033] refer to Figure 1 , Figure 3 and Figure 5 A protective cover device for a drilling machine includes a fixed plate 1, a telescopic mechanism 2 at the bottom of the fixed plate 1, a protective cover 3 at the bottom of the telescopic mechanism 2, a cover 4 hinged to the surface of the protective cover 3, a first fixing block 5 and a second fixing block 6 respectively bolted to the surfaces of the protective cover 3 and the cover 4, a fixing rod 7 bolted to the surface of the first fixing block 5, a pressing rod 8 slidably sleeved on the inner wall of the second fixing block 6, a first spring 9 fixedly connected between one end of the pressing rod 8 and the inner wall of the second fixing block 6 by a spring fixing member, a first locking rod 10 bolted to the surface of the pressing rod 8, and a locking hole 11 opened on the surface of the fixing rod 7, and the locking hole 11 locking with the first locking rod 10. By pressing the pressing block 24, the pressing rod 8 drives the first locking rod 10 to move, and the first locking rod 10 moves to disengage from the locking hole 11, opening the cover 4 to replace the drill bit. This method facilitates drill bit replacement, reduces workload, improves replacement efficiency, and is convenient to use.

[0034] refer to Figure 1 and Figure 2 The telescopic mechanism 2 includes a guide rod 19, which is slidably sleeved with the inner wall of the fixed plate 1, and the bottom of the guide rod 19 is bolted to the top of the mounting base 12. A third spring 20 is sleeved on the surface of the guide rod 19, and the third spring 20 is located between the fixed plate 1 and the mounting base 12. By setting the telescopic mechanism 2, the protective cover 3 can be raised and lowered for easy use.

[0035] refer to Figure 1 and Figure 2 The top of the guide rod 19 is bolted with an anti-slip head 23. By setting the anti-slip head 23, the guide rod 19 is prevented from slipping and stability is ensured.

[0036] refer to Figure 1 and Figure 5 One end of the pressing rod 8 is bolted with a pressing block 24. By setting the pressing block 24, it is easy to move the pressing rod 8.

[0037] Example 2:

[0038] refer to Figure 1 , Figure 2 and Figure 4 The bottom of the telescopic mechanism 2 is bolted with a mounting base 12. The inner wall of the mounting base 12 is slidably sleeved with a mounting rod 13, and the bottom of the mounting rod 13 is bolted to the top of the protective cover 3. A fixing pin 14 is provided through the mounting rod 13 and the inner wall of the mounting base 12. A second locking rod 15 is slidably sleeved with the inner wall of the mounting base 12. One end of the second locking rod 15 is fixedly connected to the inner wall of the mounting base 12 by a spring fixing member, and a second spring 16 is fixedly connected to it. The surface of the fixing pin 14 is provided with a locking groove 17, and the locking groove 17 is locked with one end of the second locking rod 15. A toggle block 18 is bolted to the surface of the second locking rod 15. By moving the toggle block 18, the second locking rod 15 is moved. The movement of the second locking rod 15 causes the second locking rod 15 to disengage from the locking groove 17, and the fixing pin 14 is removed. This method of removing the protective cover 3 facilitates the installation and removal of the protective cover 3, reduces workload, and improves work efficiency.

[0039] refer to Figure 1 and Figure 2 A support rod 21 is bolted to the top of the fixing plate 1, and a mounting plate 22 is bolted to the top of the fixing rod 7. The installation is facilitated by setting the support rod 21 and the mounting plate 22.

[0040] refer to Figure 4 and Figure 5 One end of the first locking rod 10 and the second locking rod 15 are both wedge-shaped, which facilitates fixing.

[0041] refer to Figure 4 The surface of the toggle block 18 is provided with anti-slip texture 25. By setting the anti-slip texture 25, the hand slips and the operation is facilitated.

[0042] Brief description of usage: (e.g.) Figure 6The mounting plate 22 is installed on the bottom of the drill bit housing, with the drill bit's shaft located inside the fixed plate 1 and the drill bit inside the protective cover 3. During processing, the drill bit descends, causing the protective cover 3 to descend and cover the workpiece, preventing debris from splashing during processing, thus achieving the purpose of protection. When the drill bit needs to be replaced, press the pressing block 24. The pressing block 24 moves, causing the pressing rod 8 to move. The pressing rod 8 moves, causing the first locking rod 10 to move. The first locking rod 10 moves, disengaging from the locking hole 11, opening the cover 4, and then replacing the drill bit. After replacement, close the cover 4, and the pressing rod 8 is engaged with the first spring 9. Under the action of the second spring 16, the first locking rod 10 engages with the locking hole 11, fixing it in place, thus facilitating the replacement of the drill bit. When disassembling the protective cover 3, the toggle block 18 is moved, which in turn moves the second locking rod 15. The movement of the second locking rod 15 disengages it from the locking groove 17, allowing the fixing pin 14 to be removed. The protective cover 3 is then removed, completing the disassembly. During installation, the mounting rod 13 on the protective cover 3 is inserted into the mounting base 12, and the fixing pin 14 is inserted. Under the action of the second spring 16, the second locking rod 15 engages with the locking groove 17, fixing the fixing pin 14 in place, thus completing the installation and facilitating disassembly.

[0043] 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 protective cover device for a drilling and tapping machine, comprising a fixing plate (1), characterized in that, The bottom of the fixed plate (1) is provided with a telescopic mechanism (2), the bottom of the telescopic mechanism (2) is provided with a protective cover (3), the surface of the protective cover (3) is hinged with a cover (4), the surfaces of the protective cover (3) and the cover (4) are respectively bolted with a first fixed block (5) and a second fixed block (6), the surface of the first fixed block (5) is bolted with a fixed rod (7), the inner wall of the second fixed block (6) is slidably sleeved with a pressing rod (8), one end of the pressing rod (8) is fixedly connected to the inner wall of the second fixed block (6) by a spring fixing member with a first spring (9), the surface of the pressing rod (8) is bolted with a first snap-fit ​​rod (10), the surface of the fixed rod (7) is provided with a snap-fit ​​hole (11), and the snap-fit ​​hole (11) is snapped with the first snap-fit ​​rod (10).

2. The protective cover device for a drilling and tapping machine according to claim 1, characterized in that, The bottom of the telescopic mechanism (2) is bolted with a mounting base (12). The inner wall of the mounting base (12) is slidably sleeved with a mounting rod (13), and the bottom of the mounting rod (13) is bolted to the top of the protective cover (3). A fixing pin (14) is provided through the inner wall of the mounting rod (13) and the mounting base (12). A second snap-fit ​​rod (15) is slidably sleeved on the inner wall of the mounting base (12). A second spring (16) is fixedly connected between one end of the second snap-fit ​​rod (15) and the inner wall of the mounting base (12) by a spring fixing member. A snap-fit ​​groove (17) is opened on the surface of the fixing pin (14), and the snap-fit ​​groove (17) is snapped with one end of the second snap-fit ​​rod (15). A toggle block (18) is bolted to the surface of the second snap-fit ​​rod (15).

3. The protective cover device for a drilling and tapping machine according to claim 1, characterized in that, The telescopic mechanism (2) includes a guide rod (19), which is slidably sleeved with the inner wall of the fixed plate (1), and the bottom of the guide rod (19) is bolted to the top of the mounting base (12). A third spring (20) is sleeved on the surface of the guide rod (19), and the third spring (20) is located between the fixed plate (1) and the mounting base (12).

4. A protective cover device for a drilling and tapping machine according to claim 1, characterized in that, A support rod (21) is bolted to the top of the fixing plate (1), and an mounting plate (22) is bolted to the top of the fixing rod (7).

5. A protective cover device for a drilling and tapping machine according to claim 3, characterized in that, The top of the guide rod (19) is bolted with an anti-detachment head (23).

6. A protective cover device for a drilling and tapping machine according to claim 2, characterized in that, One end of both the first locking rod (10) and the second locking rod (15) is wedge-shaped.

7. A protective cover device for a drilling and tapping machine according to claim 1, characterized in that, One end of the pressing rod (8) is bolted with a pressing block (24).

8. A protective cover device for a drilling and tapping machine according to claim 2, characterized in that, The surface of the actuating block (18) is provided with anti-slip texture (25).