A protective torque drill

By designing a guiding and protective mechanism, and utilizing the cooperation of rubber pads and guide plates, the problem of the torque drill bit detaching from the screw surface is solved, improving the stability and safety of the torque drill, simplifying the maintenance process, and enhancing user protection and work efficiency.

CN224274884UActive Publication Date: 2026-05-26JINHUA HONGJU TOOLS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINHUA HONGJU TOOLS CO LTD
Filing Date
2025-05-16
Publication Date
2026-05-26

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Abstract

This utility model discloses a protective torque drill, comprising: a torque drill body, on which a guide mechanism is provided. The protective torque drill provided by this utility model involves contacting a rubber pad with the surface where a screw needs to be installed. The operator then squeezes the guide plate with one hand, stabilizing the rubber pad through friction between the rubber pad and the surface. The operator can then place the screw into contact between the drill bit of the torque drill body and the surface where the screw needs to be installed. The other hand can then activate the torque drill body and push it towards the surface where the screw needs to be installed. This causes the torque drill body to move the T-shaped mounting base and the housing relative to the guide plate. With the cooperation of the housing and the guide plate, the torque drill body can move smoothly, reducing the possibility of the drill bit suddenly detaching from the screw surface due to the operator pushing the torque drill body off course, thus improving the stability of the screw installation process.
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Description

Technical Field

[0001] This utility model relates to the field of torque drill technology, and in particular to a protective torque drill. Background Technology

[0002] Torque drills are used for tightening screws. They have a low rotation speed but high force, while ordinary power supplies have a high rotation speed and strong penetration. They can save working time and improve work efficiency to a great extent, so they are very popular. However, the torque drills with high safety performance and self-protection function that have appeared on the market still have various shortcomings and cannot meet the needs of production.

[0003] For example, Chinese utility model patent (CN215748898U) discloses a torque drill with high safety performance and self-protection function. It states that: "This setting improves the heat dissipation of the power box, which greatly reduces the working efficiency of the torque drill; this setting provides high drill protection, preventing users from being injured when tightening screws, and is highly safe. It can also remove debris generated when tightening screws, thus facilitating the user's work." It also states the technical problems of: "Existing torque drills have poor protection, which makes users easily injured when tightening screws, resulting in low safety. Furthermore, they cannot remove debris generated when tightening screws, making it inconvenient for users to work. In addition, the power box in the torque drill has poor heat dissipation, which greatly reduces the working efficiency of the torque drill."

[0004] In summary, existing technologies utilize torque drills for screw tightening, but this method has the following technical problems: For users unfamiliar with using torque drills, when the screw is aligned with the surface to be installed, the drill bit may suddenly detach from the screw surface due to misalignment. This could lead to the tool impacting the user's body or causing other accidents if the user cannot retract their force in time. Therefore, this application proposes a protective torque drill to address the technical problems mentioned in the aforementioned patents and provide a new technical solution. Utility Model Content

[0005] Based on this, it is necessary to provide a protective torque drill to address the aforementioned technical problems. By contacting a rubber pad with the surface where the screw needs to be installed, the operator squeezes the guide plate with one hand, stabilizing the rubber pad through friction between the rubber pad and the surface. The operator then allows the screw to contact the drill bit of the torque drill body with the surface where the screw needs to be installed. The other hand can then start the torque drill body and push it towards the surface where the screw needs to be installed. This causes the torque drill body to move the T-shaped mounting base and the housing relative to the guide plate. With the cooperation of the housing and the guide plate, the torque drill body can move smoothly, reducing the possibility of the drill bit suddenly detaching from the screw surface due to the operator pushing the torque drill body off course. This improves the stability of the screw installation process and reduces the difficulty of using the device.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A protective torque drill for beginners installing screws.

[0008] The protective torque drill specifically includes:

[0009] A torque drill body, wherein a guide mechanism is provided on the torque drill body, and a protection mechanism is provided on the torque drill body;

[0010] The guiding mechanism includes a T-shaped mounting base, a housing, a guiding component, an adsorption component, and a rotating component. The top of the torque drill body is detachably mounted with a T-shaped mounting base by bolts, and the top of the T-shaped mounting base is fixedly connected to a housing.

[0011] In a preferred embodiment of the protective torque drill provided by this utility model, the guiding assembly includes a guiding plate, the inner wall of the casing is slidably connected to the guiding plate, the top of the guiding plate is fixedly connected to two T-shaped slide rails, the bottom of the guiding plate is fixedly connected to two rectangular slide rails, the two T-shaped slide rails and the two rectangular slide rails are slidably connected to the inner wall of the casing, and the two ends of the two T-shaped slide rails and the two rectangular slide rails are fixedly connected to a limiting plate.

[0012] In a preferred embodiment of the protective torque drill provided by this utility model, the adsorption assembly includes a rubber pad, the outer wall of the guide plate is fixedly connected to the rubber pad, the inner wall of the guide plate is fixedly connected to two air pipes, the inner walls of the two air pipes are slidably connected to pistons, the outer walls of the two pistons are fixedly connected to pull rods, and the pull rods are slidably connected to the inner walls of the air pipes.

[0013] In a preferred embodiment of the protective torque drill provided by this utility model, the rotating assembly includes a connecting plate, and the ends of the two pull rods located outside the air pipe are fixedly connected to the outer wall of the connecting plate. A threaded rod is rotatably connected to the top of the guide plate, and the connecting plate is threadedly connected to the outer wall of the threaded rod.

[0014] As a preferred embodiment of the protective torque drill provided by this utility model, the protective mechanism includes a fixed frame, the fixed frame is fixedly connected to the outer wall of the torque drill body, the upper and lower sides of the fixed frame are respectively provided with limiting components, the fixed frame is movably fitted with an installation frame, the outer wall of the installation frame is fixedly connected to a transparent plate, the outer wall of the transparent plate is fixedly connected to a fixed frame, and the fixed frame is slidably connected to the outer wall of the rectangular slide rail.

[0015] In a preferred embodiment of the protective torque drill provided by this utility model, the limiting component includes a T-shaped insert and a connecting handle. The inner wall of the fixing frame and the left and right sides are respectively slidably connected to the T-shaped insert. The T-shaped insert is movably inserted into the mounting frame. The outer walls of the two T-shaped inserts are fixedly connected to springs. The two springs are fixedly connected to the inner wall of the fixing frame. The two T-shaped inserts are fixedly connected to the outer wall of the connecting handle. The connecting handle is slidably connected to the inner wall of the fixing frame.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The protective torque drill provided by this utility model works by contacting a rubber pad with the surface where a screw needs to be installed. The operator then uses one hand to press a guide plate, stabilizing the rubber pad through friction between it and the surface. The operator can then place the screw into contact between the drill bit of the torque drill body and the surface where the screw needs to be installed. The other hand can then start the torque drill body and push it towards the surface where the screw needs to be installed. This causes the torque drill body to move the T-shaped mounting base and the housing relative to the guide plate. With the cooperation of the housing and the guide plate, the torque drill body moves smoothly, reducing the possibility of the drill bit suddenly detaching from the screw surface due to the operator pushing the torque drill body off course. This improves the stability of the screw installation process and reduces the difficulty of using the device.

[0018] The protective torque drill provided by this utility model allows the rubber pad to contact the surface where the screw needs to be installed. When the surface is relatively smooth, clean, and flat, the guide plate can be pushed to press the rubber pad against the surface where the screw needs to be installed. Then, the threaded rod is rotated, which causes the connecting plate to move under the constraint of the pull rod and the air tube. This causes the piston to move inside the air tube towards the main body of the torque drill. This creates a negative pressure in the space formed by the piston, air tube, rubber pad, and surface where the screw needs to be installed, which helps the operator to stably contact the rubber pad with the surface where the screw needs to be installed, thus improving the stability of the guide plate.

[0019] The protective torque drill provided by this utility model, by pressing the two connecting handles in the middle, can drive the four T-shaped inserts to move towards the center of the fixed frame, thereby releasing the restriction between the fixed frame and the mounting frame. This allows the mounting frame, transparent plate, and fixed frame to be pulled out, separating them from the device. This facilitates cleaning of the transparent plate by the operator. The simple operation improves the convenience of subsequent maintenance. Installing the mounting frame, transparent plate, and fixed frame on the fixed frame reduces the impact of wood chips or metal shavings from the screws on the user's skin, improving the protection of the operator. Furthermore, the transparent plate allows the operator to easily observe the specific installation location. Attached Figure Description

[0020] To more clearly illustrate the solutions in this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall structure of the protective torque drill provided by this utility model;

[0022] Figure 2 An exploded view of the overall structure of the protective torque drill provided by this utility model;

[0023] Figure 3 A schematic diagram of the internal structure of a portion of the guide plate and air pipe of the protective torque drill provided by this utility model;

[0024] Figure 4 A schematic diagram of the internal structure of the mounting bracket for the protective torque drill provided by this utility model;

[0025] Figure 5 The protective torque drill provided by this utility model Figure 4 A magnified view of A in the middle.

[0026] The markings in the diagram are explained as follows:

[0027] 1. Torque drill body; 2. Guiding mechanism; 3. Protective mechanism; 4. T-shaped mounting base; 5. Housing; 6. Guide plate; 7. Rectangular slide rail; 8. T-shaped slide rail; 9. Limiting plate; 10. Rubber pad; 11. Air pipe; 12. Piston; 13. Pull rod; 14. Connecting plate; 15. Threaded rod; 16. Fixing bracket; 17. T-shaped insert rod; 18. Spring; 19. Connecting handle; 20. Mounting frame; 21. Transparent plate; 22. Fixing frame. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0029] As described in the background art, for some users who are not proficient in using torque drills to tighten screws, when the screw is aligned with the surface to be installed and the operator pushes the torque drill and starts the torque drill to install the screw, the drill bit may suddenly disengage from the screw surface due to the operator pushing the torque drill off-center. This may cause the tool to hit the operator's body or cause other accidents if the operator does not have time to release the force.

[0030] To solve this technical problem, this utility model provides a protective torque drill, which is used for novice screw installers.

[0031] For details, please refer to Figures 1-2 Protective torque drills specifically include:

[0032] Torque drill body 1, a guide mechanism 2 is provided on torque drill body 1, and a protection mechanism 3 is provided on torque drill body 1;

[0033] The guiding mechanism 2 includes a T-shaped mounting base 4, a housing 5, a guiding component, an adsorption component, and a rotating component. The top of the torque drill body 1 is detachably mounted with a T-shaped mounting base 4 by bolts, and the top of the T-shaped mounting base 4 is fixedly connected with a housing 5.

[0034] This application is suitable for beginners. After becoming proficient in subsequent operations, the T-shaped mounting base 4 can be separated from the torque drill body 1 by bolts. Relying on the operator's skillful operation, the steps such as pressing the guide plate 6 can be reduced, thereby improving the efficiency of screw driving.

[0035] The torque drill body 1 in this application has the same specific structure and working principle as the torque drill body in the existing device mentioned in the background art.

[0036] The protective torque drill provided by this utility model involves contacting the rubber pad 10 with the surface where the screw needs to be installed. The operator then uses one hand to press the guide plate 6, stabilizing the rubber pad 10 through friction between it and the surface. The operator can then place the screw into contact between the drill bit of the torque drill body 1 and the surface where the screw needs to be installed. The other hand can then activate the torque drill body 1 and push it towards the surface where the screw needs to be installed. This causes the torque drill body 1 to move the T-shaped mounting base 4 and the housing 5 relative to the guide plate 6. With the cooperation of the housing 5 and the guide plate 6, the torque drill body 1 can move smoothly, reducing the possibility of the drill bit suddenly detaching from the screw surface due to the operator pushing the torque drill body 1 off course. This improves the stability of the screw installation process and reduces the difficulty of using the device.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Example 1

[0038] Please refer to Figures 1-3 A protective torque drill, comprising:

[0039] Torque drill body 1, a guide mechanism 2 is provided on torque drill body 1, and a protection mechanism 3 is provided on torque drill body 1;

[0040] The guiding mechanism 2 includes a T-shaped mounting base 4, a housing 5, a guiding component, an adsorption component, and a rotating component. The top of the torque drill body 1 is detachably mounted with a T-shaped mounting base 4 by bolts. The top of the T-shaped mounting base 4 is fixedly connected to the housing 5. The guiding mechanism 2 can assist the operator in pushing the torque drill body 1 relatively smoothly, reducing the possibility of the drill bit of the torque drill body 1 becoming detached from the bolts due to tilting and pushing the torque drill body 1.

[0041] The guiding assembly includes a guide plate 6, which is slidably connected to the inner wall of the housing 5. Two T-shaped slide rails 8 are fixedly connected to the top of the guide plate 6, and two rectangular slide rails 7 are fixedly connected to the bottom of the guide plate 6. The two T-shaped slide rails 8 and the two rectangular slide rails 7 are slidably connected to the inner wall of the housing 5. Limiting plates 9 are fixedly connected to both ends of the two T-shaped slide rails 8 and the two rectangular slide rails 7. The guiding assembly can guide the torque drill body 1 to move smoothly.

[0042] The adsorption assembly includes a rubber pad 10. The rubber pad 10 is fixedly connected to the outer wall of the guide plate 6. Two air tubes 11 are fixedly connected to the inner wall of the guide plate 6. Pistons 12 are slidably connected to the inner walls of the two air tubes 11. Pull rods 13 are fixedly connected to the outer walls of the two pistons 12. Pull rods 13 are slidably connected to the inner walls of the air tubes 11. When the surface of the screw to be installed is relatively flat, smooth and clean, the rubber pad 10 can be adsorbed onto the surface of the screw to be installed by the adsorption assembly to assist the operator in installing the screw.

[0043] The rotating assembly includes a connecting plate 14. The ends of two pull rods 13 located outside the air tube 11 are fixedly connected to the outer wall of the connecting plate 14. A threaded rod 15 is rotatably connected to the top of the guide plate 6. The connecting plate 14 is threadedly connected to the outer wall of the threaded rod 15. The rotating assembly can restrict the pull rods 13 after they slide out of the air tube 11.

[0044] With the above structural design, when screws need to be tightened, the guide plate 6 is first fixed. The rubber pad 10 is then brought into contact with the surface where the screw needs to be installed. The operator then squeezes the guide plate 6 with one hand, using the friction between the rubber pad 10 and the surface to be installed to keep the rubber pad 10 stable. If the surface to be installed is smooth, clean, and flat, the threaded rod 15 can be rotated. This causes the connecting plate 14 to move under the constraints of the pull rod 13 and the air pipe 11, causing the piston 12 to move inside the air pipe 11 towards the torque drill body 1. This creates a negative pressure in the space formed by the piston 12, air pipe 11, rubber pad 10, and the surface to be installed, helping the operator to stably contact the rubber pad 10 with the screw. After the guide plate 6 is fixed in place, the operator can make the two ends of the screw contact the drill bit of the torque drill body 1 and the surface where the screw needs to be installed, respectively. Then, the other hand can start the torque drill body 1 and push it towards the surface where the screw needs to be installed. This will cause the torque drill body 1 to move the T-shaped mounting base 4 and the sleeve 5 relative to the guide plate 6. With the cooperation of the sleeve 5 and the guide plate 6, the torque drill body 1 can move smoothly to install the screw. After the screw is installed, the threaded rod 15 is rotated in the opposite direction to move the connecting plate 14 towards the air pipe 11. This will release the negative pressure formed by the space composed of the piston 12, air pipe 11, rubber pad 10 and the surface where the screw needs to be installed, and then the rubber pad 10 can be separated from the surface where the screw is installed. Example 2

[0045] The protective torque drill provided in Example 1 has been further optimized, specifically, as follows: Figures 4-5As shown, the protective mechanism 3 includes a fixed frame 16. The fixed frame 16 is fixedly connected to the outer wall of the torque drill body 1. Limiting components are respectively provided on the upper and lower sides of the fixed frame 16. An installation frame 20 is movably sleeved on the outside of the fixed frame 16. A transparent plate 21 is fixedly connected to the outer wall of the installation frame 20. A fixed frame 22 is fixedly connected to the outer wall of the transparent plate 21. The fixed frame 22 is slidably connected to the outer wall of the rectangular slide rail 7. The installation frame 20, the transparent plate 21, and the fixed frame 22 can protect part of the operator's hands and reduce the injury to the hands during the operation. When installing screws, the housing 5 slides relative to the guide plate 6. The fixed frame 22 slides at the bottom of the housing 5 against the outer wall of the rectangular slide rail 7 to support the torque drill body 1 and improve the stability of the torque drill body 1 sliding relative to the guide plate 6.

[0046] The limiting components include T-shaped inserts 17 and connecting handles 19. T-shaped inserts 17 are slidably connected to the inner wall of the fixing frame 16 on both the left and right sides. The T-shaped inserts 17 are movably inserted into the mounting frame 20. Springs 18 are fixedly connected to the outer walls of the two T-shaped inserts 17. The two springs 18 are fixedly connected to the inner wall of the fixing frame 16. The two T-shaped inserts 17 are fixedly connected to the outer walls of the connecting handles 19. The connecting handles 19 are slidably connected to the inner wall of the fixing frame 16. The quick disassembly and reassembly of the mounting frame 20, the transparent plate 21, and the fixing frame 22 facilitate the operator's subsequent cleaning and maintenance of the transparent plate 21.

[0047] With the above structural design, when the operator needs to clean the transparent plate 21, by squeezing the two connecting handles 19 in the middle, the four T-shaped inserts 17 can be moved towards the center of the fixing frame 16, causing the springs 18 to deform. This releases the constraint between the fixing frame 16 and the mounting frame 20, allowing the mounting frame 20, transparent plate 21, and fixing frame 22 to be pulled out. During this process, the fixing frame 22 slides along the rectangular slide rail 7 until the torque drill body 1 is completely separated from the space enclosed by the mounting frame 20, allowing the fixing frame 22 to separate from the rectangular slide rail 7. After separating the mounting frame 20, transparent plate 21, and fixed frame 22 from the device, the operator can easily clean the transparent plate 21. When installing the clean mounting frame 20, transparent plate 21, and fixed frame 22 onto the fixed frame 16, press the two connecting handles 19 in the middle until the corresponding T-shaped inserts 17 are retracted into the fixed frame 16. Then, put the mounting frame 20 over the outside of the fixed frame 16, and then release the two connecting handles 19. Under the elastic force of the spring 18, the corresponding T-shaped inserts 17 will be inserted into the mounting frame 20, thus completing the installation operation of the device.

Claims

1. A protective torque drill, comprising a torque drill body (1), characterized in that: The torque drill body (1) is provided with a guide mechanism (2) and a protection mechanism (3). The guiding mechanism (2) includes a T-shaped mounting base (4), a housing (5), a guiding component, an adsorption component, and a rotating component. The top of the torque drill body (1) is detachably mounted with a T-shaped mounting base (4) by bolts, and the top of the T-shaped mounting base (4) is fixedly connected with a housing (5).

2. The protective torque drill according to claim 1, characterized in that, The guiding assembly includes a guide plate (6), which is slidably connected to the inner wall of the housing (5). Two T-shaped slide rails (8) are fixedly connected to the top of the guide plate (6), and two rectangular slide rails (7) are fixedly connected to the bottom of the guide plate (6). The two T-shaped slide rails (8) and the two rectangular slide rails (7) are slidably connected to the inner wall of the housing (5), and the two ends of the two T-shaped slide rails (8) and the two rectangular slide rails (7) are fixedly connected to a limiting plate (9).

3. The protective torque drill according to claim 2, characterized in that, The adsorption assembly includes a rubber pad (10), the outer wall of the guide plate (6) is fixedly connected to the rubber pad (10), the inner wall of the guide plate (6) is fixedly connected to two air tubes (11), the inner walls of the two air tubes (11) are slidably connected to pistons (12), the outer walls of the two pistons (12) are fixedly connected to pull rods (13), and the pull rods (13) are slidably connected to the inner walls of the air tubes (11).

4. The protective torque drill according to claim 3, characterized in that, The rotating assembly includes a connecting plate (14), and the ends of the two pull rods (13) located outside the air tube (11) are fixedly connected to the outer wall of the connecting plate (14). The top of the guide plate (6) is rotatably connected to a threaded rod (15), and the connecting plate (14) is threadedly connected to the outer wall of the threaded rod (15).

5. The protective torque drill according to claim 2, characterized in that, The protective mechanism (3) includes a fixed frame (16). The fixed frame (16) is fixedly connected to the outer wall of the torque drill body (1). The upper and lower sides of the fixed frame (16) are respectively provided with limiting components. The fixed frame (16) is movably fitted with an installation frame (20). The outer wall of the installation frame (20) is fixedly connected with a transparent plate (21). The outer wall of the transparent plate (21) is fixedly connected with a fixed frame (22). The fixed frame (22) is slidably connected to the outer wall of the rectangular slide rail (7).

6. The protective torque drill according to claim 5, characterized in that, The limiting component includes a T-shaped insert (17) and a connecting handle (19). The inner wall of the fixing frame (16) and the left and right sides are respectively slidably connected to the T-shaped insert (17). The T-shaped insert (17) is movably inserted into the mounting frame (20). The outer walls of the two T-shaped inserts (17) are fixedly connected to springs (18). The two springs (18) are fixedly connected to the inner wall of the fixing frame (16). The two T-shaped inserts (17) are fixedly connected to the outer wall of the connecting handle (19). The connecting handle (19) is slidably connected to the inner wall of the fixing frame (16).