Device and method for improving the efficiency of a hand-held burr

Abstract

The application discloses a device for improving the efficiency of hand-held wind drill chiseling, which comprises: a gas leg installed at the holding end of the hand-held wind drill to support the hand-held wind drill at a certain height; and a sleeve assembly comprising a steel sleeve, an upper handle and a lower handle, wherein the steel sleeve is sleeved on the outer portion of the drill rod of the hand-held wind drill and exposes the drill bit to be perpendicular to the dam body, the steel sleeve is provided with a level bubble, and the upper handle and the lower handle are respectively installed above and below the steel sleeve. The application discloses a method for improving the efficiency of hand-held wind drill chiseling. The application can realize the vertical fast and high-quality chiseling construction on the concrete surface of an old dam body.

Description

Technical Field

[0001] This invention relates to the field of deburring technology. More specifically, this invention relates to an apparatus and method for improving the deburring efficiency of a hand-held pneumatic drill. Background Technology

[0002] In reinforcement and upgrading projects, the entire concrete surface of the old dam must be roughened before concrete pouring can proceed. Conventionally, pneumatic drills are used to remove the concrete surface, resulting in high labor, material, and machinery costs and low efficiency. Improving the vertical roughening efficiency of the dam's concrete surface is a key factor restricting the progress of this work. Currently, hand-held pneumatic drills are used for roughening, but due to the lack of specialized handheld tools, manual positioning is required, leading to low efficiency and difficulty in controlling the verticality during roughening. The roughening quality can only initially meet design requirements. Summary of the Invention

[0003] This invention provides an apparatus and method for improving the efficiency of hand-held pneumatic drills for roughening concrete surfaces, which enables rapid and high-quality roughening of concrete surfaces in the vertical direction on old dams.

[0004] To achieve these objectives and other advantages according to the present invention, an apparatus for improving the deburring efficiency of a hand-held pneumatic drill is provided, comprising:

[0005] An air leg is installed at the handle end of the hand drill to support the hand drill at a certain height;

[0006] The casing assembly includes a steel casing, an upper handle, and a lower handle. The steel casing is fitted over the outside of the drill rod of the hand drill and protrudes from the drill bit so that it is perpendicular to the dam body. A level bubble is provided on the steel casing. The upper handle and the lower handle are respectively installed above and below the steel casing.

[0007] Preferably, it also includes:

[0008] The support assembly includes a base, a support frame, a rotating bracket, and a traction bracket. The base is temporarily installed on the dam body. The support frame is vertically installed on the base. The upper part of the support frame has a first hinge point and is rotatably connected to one end of the rotating bracket. The upper middle part of the support frame has a second hinge point and is rotatably connected to one end of the traction bracket. The top surface of the rotating bracket supports the steel sleeve. The middle part of the rotating bracket to the other end has a downward-opening U-shaped structure. A sliding groove is provided on the opposite side of the U-shaped structure. The bottom surface of the U-shaped structure has locking teeth. The middle part of the traction bracket is also connected to the first hinge point and the second hinge point of the support frame by a tension spring. The middle part of the traction bracket to the other end has a Y-shaped structure. The other end of the traction bracket has a sliding shaft. The sliding shaft slides through the sliding groove. The size of the sliding shaft is slightly smaller than two adjacent locking teeth so as to be locked between two adjacent locking teeth.

[0009] Preferably, it also includes:

[0010] A positioning assembly includes a positioning box, a positioning frame, and at least one positioning structure. The positioning box has an open top and is integrally formed below the U-shaped structure. The positioning frame includes a horizontal frame and multiple vertical frames above it. The spacing between two adjacent vertical frames is set to accommodate the sliding shaft. The positioning structure includes a first bottom support, a second bottom support, a third top support, a driving rod, a connecting rod, a driven rod, and a motor. The first bottom support and the second bottom support are installed in the positioning box. The third top support is installed at the bottom of the horizontal frame and is located between the first bottom support and the second bottom support. One end of the driving rod is rotatably connected to the first bottom support and fixedly connected to the output shaft of the motor. The other end of the driving rod is rotatably connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to one end of the driven rod. The other end of the driven rod is rotatably connected to the second bottom support. An extension rod is inclinedly provided in the middle of the connecting rod, and the free end of the extension rod is rotatably connected to the third top support.

[0011] A method for improving the deburring efficiency of a hand-held pneumatic drill, based on the aforementioned apparatus for improving the deburring efficiency of a hand-held pneumatic drill, the method comprising:

[0012] Step 1: Remove debris, sand, and stains from the concrete surface of the dam and set up roughening points;

[0013] Step 2: Install the air leg at approximately the same height as the chiseling point, install the hand drill, and install the steel sleeve around the drill rod of the hand drill with the drill bit protruding. Adjust the position of the steel sleeve using the upper and lower handles, and complete the horizontal positioning by observing the level bubble to fix the height of the air leg.

[0014] Step 3: Start the hand drill to perform the roughening operation.

[0015] Preferably, step two includes:

[0016] Step 2.1: Install the air leg at approximately the same height as the chiseling point, install the hand drill, and install the steel sleeve around the outside of the drill rod of the hand drill, with the drill bit protruding. Align the drill bit with the chiseling point and make preliminary adjustments to the position of the steel sleeve using the upper and lower handles.

[0017] Step 2.2: Temporarily install the base on the dam body below the steel sleeve, so that the top surface of the rotating bracket supports the steel sleeve. Rotate the rotating bracket to precisely adjust the position of the steel sleeve, specifically as follows:

[0018] Rotate the rotating bracket to move the sliding shaft in the sliding groove to adjust the angle of the rotating bracket relative to the support frame. When the rotating bracket is rotated to the horizontal, the horizontal positioning is completed by observing the level bubble, so that the top of the sliding shaft of the traction bracket is locked between two adjacent locking teeth of the rotating bracket.

[0019] Step 2.3: Fix the height of the air leg.

[0020] Preferably, step 2.2 includes:

[0021] Step 2.21: Temporarily install the base on the dam body below the steel sleeve, so that the top surface of the rotating bracket supports the steel sleeve;

[0022] Step 2.22: Rotate the rotating bracket to move the sliding shaft in the sliding groove, thereby adjusting the angle of the rotating bracket relative to the support frame, so that the rotating bracket rotates to approximately horizontal.

[0023] Step 2.23: Start the motor to drive the active rod to rotate, so that the positioning frame drags the sliding shaft to move to the appropriate position in the slide groove during the rotation, so as to adjust the angle of the rotating bracket relative to the support frame. When the rotating bracket rotates to the horizontal, the horizontal positioning is completed by observing the level bubble. Turn off the motor to stop driving the active rod to rotate, so that the bottom of the sliding shaft of the traction bracket is locked between two adjacent vertical frames of the positioning frame, and the top of the sliding shaft of the traction bracket is locked between two adjacent locking teeth of the rotating bracket.

[0024] The present invention has at least the following beneficial effects:

[0025] First, this invention enables rapid and high-quality vertical roughening of the concrete surface of old dams by using a pneumatic leg to support the hand drill and adjusting the angle of the hand drill through a casing assembly. The invention has a simple structure and good applicability, which greatly improves the roughening efficiency of the hand drill and frees up labor. It is widely applicable to the market for roughening of large-area vertical concrete surfaces.

[0026] Secondly, the air leg of this invention is an adjustable lifting structure. The air leg supports the hand drill to the height of the chiseling point. For stability, a three-leg structure can be adopted. A steel sleeve is fitted over the outside of the drill rod. The length of the steel sleeve can be 1.2 m. A rotating structure is installed so that the drill rod can rotate relative to the steel sleeve. The upper and lower handles are set opposite each other and are made of ø12 steel bars. They are used to adjust the angle of the steel sleeve so that the drill rod is perpendicular to the concrete surface. A level bubble is embedded in the steel sleeve. By observing the level bubble, the horizontality of the drill rod can be judged manually, and the angle of the drill rod of the hand drill can be quickly judged, thereby ensuring the chiseling quality. When using it, first set up the air leg, then manually fit the steel sleeve over the end of the drill rod, and manually adjust the angle of the drill rod using the upper and lower handles to carry out the chiseling construction. Combining the drill rod of the hand drill with hand tools can improve the efficiency of construction personnel in chiseling operations with hand drills and provide a working surface for rebar binding and formwork installation operations in a timely manner.

[0027] Third, the support assembly of this invention provides support at the bottom of the steel sleeve, facilitating the maintenance of its horizontality and promoting smooth chiseling operations. The base can be temporarily installed on the dam body via anchoring or other methods, located below the chiseling point. Since the base may be tilted, the angle of the rotating bracket relative to the support frame is adjusted to keep the rotating bracket horizontal, thus supporting the steel sleeve and keeping it level. The support frame, rotating bracket, and traction bracket form a triangular structure. The tension spring enhances the stability of the triangular structure. The steel sleeve is initially adjusted to near-horizontal using the upper and lower handles, and then precisely adjusted to horizontal using the rotating bracket. The first hinge point on the support frame is used for rotatable connection with the rotating bracket, and the second hinge point is used for connection with the traction bracket. The rotating support has a rotating connection. The C-shaped structure of the rotating support has a sliding groove, forming a pair of support points for the sliding shaft. The Y-shaped structure of the traction support has a sliding shaft that passes through a pair of sliding grooves. The C-shaped structure of the rotating support also has locking teeth. The height of the locking teeth is higher than the sliding grooves, meaning that the locking teeth do not obstruct the movement of the sliding shaft. The sliding shaft can be locked between adjacent locking teeth. When the rotation angle of the rotating support is adjusted, the sliding shaft slides in a pair of sliding grooves. When the rotation angle of the rotating support is adjusted to be horizontal, the weight of the steel casing and drill pipe and other components presses on the rotating support. The top of the sliding shaft is locked between two adjacent locking teeth, restricting the sliding shaft from moving relative to a pair of sliding grooves, thereby restricting the rotating support from rotating relative to the support frame, keeping the rotating support horizontal, and thus maintaining the horizontality of the steel casing.

[0028] Fourth, the positioning component of this invention avoids the problem of the sliding shaft disengaging from the retaining teeth due to vibration during the chiseling operation, causing the rotating support to deflect. By limiting the displacement of the sliding shaft at multiple points, the stable setting of the rotating support is ensured, thereby ensuring the horizontal setting of the steel sleeve and improving the safety and practicality of the chiseling operation. The positioning box is formed below the rotating support. The positioning box is used to set the positioning frame, positioning structure and other components. During the rotation, the positioning frame supports the sliding shaft, drives the sliding shaft to move, and disengages from the sliding shaft, so that the sliding shaft is precisely adjusted to the position in the slide groove. The positioning frame positions the sliding shaft through an electric structure. The third top support is connected and linked to the first bottom support and the second bottom support through an active rod, a connecting rod and a driven rod. The first bottom support and the active rod, the active rod and the connecting rod, the connecting rod and the third top support, the connecting rod and the driven rod, and the driven rod and the second bottom support are all rotatably connected, which can be achieved by a pin. The active rod is the power source. The active rod makes a circular motion, and the driven rod makes a periodic oscillation. The rod makes an irregular circular motion, causing the positioning frame to rotate to a position higher than the lower edge of the slide groove, dragging the sliding shaft to move until the positioning frame continues to rotate to a position lower than the lower edge of the slide groove and disengages from the sliding shaft. The sliding shaft rests on the slide groove and has been displaced. This motor-driven method moves the sliding shaft to a predetermined position, making the rotation angle of the rotating bracket horizontal. The weight of the steel casing and drill rod and other components presses on the rotating bracket. The top of the sliding shaft is locked between two adjacent locking teeth, and the bottom is locked between two adjacent vertical frames of the positioning frame, restricting the sliding shaft from moving relative to a pair of slide grooves, thereby restricting the rotating bracket from rotating relative to the support frame, keeping the rotating bracket horizontal, and thus maintaining the horizontality of the steel casing.

[0029] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of one technical solution of the present invention;

[0031] Figure 2 This is a schematic diagram of the structure of a support assembly according to one technical solution of the present invention;

[0032] Figure 3 This is a schematic diagram of the structure of a positioning component according to a technical solution of the present invention;

[0033] Figure 4 This is a schematic diagram illustrating the process of precisely adjusting the position of a steel sleeve using a positioning component, as described in one technical solution of the present invention. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0035] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0036] It should be noted that, unless otherwise specified, the experimental methods described in the following embodiments are conventional methods, and the reagents and materials mentioned are commercially available. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to fixed connection or setting, detachable connection or setting, or integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0037] like Figure 1 As shown, the present invention provides an apparatus for improving the deburring efficiency of a hand-held pneumatic drill, comprising:

[0038] Air leg 1, which is installed on the grip end of hand drill 2, supports the hand drill 2 at a certain height;

[0039] The casing assembly includes a steel casing 3, an upper handle 4, and a lower handle 5. The steel casing 3 is fitted over the outside of the drill rod of the hand drill 2 and protrudes from the drill bit so that it is perpendicular to the dam body 9. A level bubble 6 is provided on the steel casing 3. The upper handle 4 and the lower handle 5 are respectively installed above and below the steel casing 3.

[0040] The air leg 1 of this invention is an adjustable lifting structure. The air leg 1 supports the hand drill 2 to the height of the chiseling point. For stability, a three-leg structure can be adopted. The steel sleeve 3 is sleeved on the outside of the drill rod. The length of the steel sleeve can be 1.2 m. The installation of the rotating structure allows the drill rod to rotate relative to the steel sleeve 3. The upper handle 4 and the lower handle 5 are set opposite each other and are made of ø12 steel bars. They are used to adjust the angle of the steel sleeve 3 so that the drill rod is perpendicular to the concrete surface. The level bubble 6 is embedded in the steel sleeve 3. By observing the level bubble 6, the horizontality of the drill rod can be judged manually, and the angle of the drill rod of the hand drill 2 can be quickly judged, thereby ensuring the chiseling quality. When using it, first set up the air leg 1, then manually put the steel sleeve 3 on the end of the drill rod, and manually adjust the angle of the drill rod using the upper handle 4 and the lower handle 5 to carry out the chiseling construction. Combining the drill rod of the hand drill 2 with the hand tool can improve the efficiency of the construction personnel in the chiseling operation of the hand drill 2, and provide a working surface for the reinforcement binding and formwork installation operations in a timely manner.

[0041] In the above technical solution, by supporting the hand drill 2 with the air leg 1 and adjusting the angle of the hand drill 2 with the sleeve assembly, it is possible to achieve rapid and high-quality vertical roughening construction on the concrete surface of the old dam body 9. The present invention has a simple structure and good applicability. It greatly improves the roughening operation efficiency during the roughening process of the hand drill 2, frees up labor, and is widely applicable to the market for roughening construction of large-area vertical concrete surfaces.

[0042] like Figure 2 As shown, another technical solution also includes:

[0043] The support assembly 7 includes a base 71, a support frame 72, a rotating bracket 73, and a traction bracket 74. The base 71 is temporarily installed on the dam body 9. The support frame 72 is vertically installed on the base 71. The upper part of the support frame 72 has a first hinge point and is rotatably connected to one end of the rotating bracket 73. The upper middle part of the support frame 72 has a second hinge point and is rotatably connected to one end of the traction bracket 74. The top surface of the rotating bracket 73 supports the steel sleeve 3. The middle part of the rotating bracket 73 extends to the other end at a [missing information - likely a specific angle or angle]. The structure has a downward-facing U-shaped opening. A groove 75 is provided on the opposite side of the U-shaped structure. The bottom surface of the U-shaped structure is provided with locking teeth. The middle part of the traction bracket 74 is connected to the first hinge point and the second hinge point of the support frame 72 by a tension spring 77. The middle part of the traction bracket 74 forms a Y-shaped structure to the other end. The other end of the traction bracket 74 is provided with a sliding shaft 76. The sliding shaft 76 slides through the groove 75. The size of the sliding shaft 76 is slightly smaller than that of two adjacent locking teeth so as to be locked between two adjacent locking teeth.

[0044] In the above technical solution, the support assembly 7 provides support for the bottom of the steel sleeve 3, facilitating the maintenance of the steel sleeve 3's horizontality and promoting smooth chiseling operations. The base 71 can be temporarily installed on the dam body 9 via anchoring or other methods, located below the chiseling point. Since the base 71 may be tilted, the angle of the rotating bracket 73 relative to the support frame 72 is adjusted to keep the rotating bracket 73 horizontal, thus supporting the steel sleeve 3 and keeping it horizontal. The support frame 72, rotating bracket 73, and traction bracket 74 form a triangular structure. The tension spring 77 enhances the stability of the triangular structure. The position of the steel sleeve 3 is initially adjusted to near horizontal using the upper handle 4 and lower handle 5, and then precisely adjusted to horizontal using the rotating bracket 73. The first hinge point on the support frame 72 is used for rotatable connection with the rotating bracket 73, and the second hinge point is used for rotatable connection with the traction bracket 74. Next, the rotating bracket 73 is provided with a U-shaped structure and a sliding groove 75, forming a pair of support points for the sliding shaft 76. The traction bracket 74 is provided with a Y-shaped structure and a sliding shaft 76, which passes through a pair of sliding grooves 75. The U-shaped structure of the rotating bracket 73 is also provided with locking teeth. The height of the locking teeth is higher than that of the sliding grooves 75, that is, the locking teeth do not hinder the movement of the sliding shaft 76. The sliding shaft 76 can be locked between adjacent locking teeth. When the rotation angle of the rotating bracket 73 is adjusted, the sliding shaft 76 slides in a pair of sliding grooves 75. When the rotation angle of the rotating bracket 73 is adjusted to be horizontal, the weight of the steel casing 3 and drill rod and other components presses on the rotating bracket 73. The top of the sliding shaft 76 is locked between two adjacent locking teeth, which restricts the sliding shaft 76 from moving relative to the pair of sliding grooves 75, thereby restricting the rotating bracket 73 from rotating relative to the support frame 72, keeping the rotating bracket 73 horizontal, thereby maintaining the horizontality of the steel casing 3.

[0045] like Figure 3 As shown, another technical solution also includes:

[0046] The positioning assembly 8 includes a positioning box 81, a positioning frame 82, and at least one positioning structure. The positioning box 81 is open at the top and integrally formed below the U-shaped structure. The positioning frame 82 includes a horizontal frame and multiple vertical frames above it. The spacing between two adjacent vertical frames is set to accommodate the sliding shaft 76. The positioning structure includes a first bottom support 83, a second bottom support 84, a third top support 85, a driving rod 86, a connecting rod 87, a driven rod 88, and a motor. The first bottom support 83 and the second bottom support 84 are installed in the positioning box 81. The third top support 85 is installed at the bottom of the horizontal frame and is located between the first bottom support 83 and the second bottom support 84. One end of the driving rod 86 is connected to the first bottom support... The seat 83 is rotatably connected and fixedly connected to the output shaft of the motor. The other end of the driving rod 86 is rotatably connected to one end of the connecting rod 87. The other end of the connecting rod 87 is rotatably connected to one end of the driven rod 88. The other end of the driven rod 88 is rotatably connected to the second bottom support 84. The length of the driving rod 86 is less than the height of the first bottom support 83. The length of the driven rod 88 is less than the height of the second bottom support 84. The length of the connecting rod 87 is less than the horizontal projection of the hinge point of the first bottom support 83 and the second bottom support 84. The first bottom support 83 is lower than the second bottom support 84. An extension rod is inclinedly provided in the middle of the connecting rod 87. The free end of the extension rod is rotatably connected to the third top support 85.

[0047] In the above technical solution, the positioning component 8 avoids the problem of the sliding shaft 76 disengaging from the locking teeth due to vibration during the chiseling operation, causing the rotating bracket 73 to deflect. By limiting the displacement of the sliding shaft 76 at multiple points, the stable setting of the rotating bracket 73 is ensured, thereby ensuring the horizontal setting of the steel sleeve 3 and improving the safety and practicality of the chiseling operation. The positioning box 81 is formed below the rotating bracket 73. The positioning box 81 is used to house components such as the positioning frame 82 and the positioning structure. During rotation, the positioning frame 82 supports the sliding shaft 76, drives the sliding shaft 76 to move, and disengages from the sliding shaft 76, allowing the sliding shaft 76 to be precisely adjusted in the sliding groove 75. The positioning of the sliding shaft 76 by the positioning frame 82 is achieved through an electrical structure. The third top support 85 is connected and linked to the first bottom support 83 and the second bottom support 84 via the driving rod 86, connecting rod 87, and driven rod 88. The first bottom support 83 is rotatably connected to the driving rod 86, the driving rod 86 to the connecting rod 87, the connecting rod 87 to the third top support 85, the connecting rod 87 to the driven rod 88, and the driven rod 88 to the second bottom support 84, which can be achieved through pins. The driving rod 86 is the power source, and the driving rod 86 performs circular motion. The rod 88 oscillates periodically, and the connecting rod 87 makes irregular circular motion, causing the positioning frame 82 to rotate to a position higher than the lower edge of the slide groove 75, dragging the slide shaft 76 to move until the positioning frame 82 continues to rotate to a position lower than the lower edge of the slide groove 75 and disengages from the slide shaft 76. The slide shaft 76 is placed on the slide groove 75 and has been displaced. This motor-driven method moves the slide shaft 76 to a predetermined position, so that the rotation angle of the rotating bracket 73 is horizontal. The weight of the steel sleeve 3 and drill rod and other components presses on the rotating bracket 73. The top of the slide shaft 76 is locked between two adjacent teeth, and the bottom is locked between two adjacent vertical frames of the positioning frame 82, restricting the slide shaft 76 from moving relative to a pair of slide grooves 75, thereby restricting the rotating bracket 73 from rotating relative to the support frame 72, keeping the rotating bracket 73 horizontal, and thus maintaining the horizontality of the steel sleeve 3.

[0048] A method for improving the chipping efficiency of a hand-held pneumatic drill 2, based on the aforementioned apparatus for improving the chipping efficiency of a hand-held pneumatic drill 2, the method comprising:

[0049] Step 1: Remove debris, sand, and stains from the concrete surface of the dam body 9 to ensure the cleanliness of the chiseling work surface. This is beneficial to the chiseling effect and the improvement of subsequent construction quality. Set up chiseling points so that the chiseling operation has clear positioning and guidance, which improves the accuracy and uniformity of chiseling.

[0050] Step 2: Install the air leg 1 at approximately the same height as the chiseling point, install the hand drill 2, and install the steel sleeve 3 around the outside of the drill rod of the hand drill 2, with the drill bit exposed. This protects the drill rod, improves chiseling efficiency, and ensures that the depth and shape of the chiseling meet the requirements. Adjust the position of the steel sleeve 3 using the upper handle 4 and the lower handle 5, and complete the horizontal positioning by observing the level bubble 6. Fix the height of the air leg 1 to ensure the horizontality and verticality of the chiseling operation, thereby improving the accuracy and construction quality of the chiseling.

[0051] Step 3: Start the hand drill 2 to perform the roughening operation.

[0052] In the above technical solution, the preparation work for the chiseling operation is sufficient, the equipment configuration is reasonable, the positioning is accurate, the operation is simple, and the adaptability is strong. During the chiseling operation, the horizontality and verticality of the steel casing 3 are guaranteed, and the impact force and rotation force of the drill bit can be evenly applied to the concrete surface. The resulting chiseling pit marks are clear, uniform, and beautiful, which is conducive to the bonding and curing in subsequent construction. It is a chiseling method worth promoting and applying. It is suitable for chiseling the concrete surface of dam bodies 9 with different hardness and thickness, and has strong adaptability and flexibility.

[0053] Preferably, step two includes:

[0054] Step 2.1: Install the air leg 1 at approximately the same height as the chiseling point, install the hand drill 2, and install the steel sleeve 3 around the outside of the drill rod of the hand drill 2, with the drill bit protruding. Align the drill bit with the chiseling point and make preliminary adjustments to the position of the steel sleeve 3 using the upper handle 4 and the lower handle 5.

[0055] Step 2.2: Temporarily install the base 71 on the dam body 9 below the steel sleeve 3. Temporary installation allows the base 71 to be installed at the roughened location below, so that the top surface of the rotating bracket 73 supports the steel sleeve 3. Rotate the rotating bracket 73 to precisely adjust the position of the steel sleeve 3. Specifically:

[0056] Rotate the rotating bracket 73 to move the sliding shaft 76 in the sliding groove 75 to adjust the angle of the rotating bracket 73 relative to the support frame 72. When the rotating bracket 73 is rotated to the horizontal, the horizontal positioning is completed by observing the level bubble 6, so that the top of the sliding shaft 76 of the traction bracket 74 is locked between two adjacent locking teeth of the rotating bracket 73.

[0057] Step 2.3: Fix the height of air leg 1.

[0058] In the above technical solution, the position of the steel sleeve 3 is initially adjusted by the upper handle 4 and the lower handle 5, and then the position of the steel sleeve 3 is precisely adjusted by rotating the rotating bracket 73 through the temporary mounting base 71. This ensures that the steel sleeve 3 remains stable during the roughening process, preventing it from shaking or shifting, and ensuring that the drill bit can accurately align with the roughening point. This makes the roughening operation more precise and reduces errors and unnecessary repetitive work. The design of the rotating bracket 73 and the traction bracket 74 allows the device to adapt to roughening requirements at different heights and angles. Whether the dam body 9 is horizontal or inclined, the roughening requirements can be met by adjusting the angle of the rotating bracket 73.

[0059] As a preferred option, such as Figure 3 , 4 As shown, step 2.2 includes:

[0060] Step 2.21: Temporarily install the base 71 on the dam body 9 below the steel sleeve 3. Temporary installation can be done by installing the base 71 at the roughened position below, so that the top surface of the rotating bracket 73 supports the steel sleeve 3.

[0061] Step 2.22: Rotate the rotating bracket 73 to move the sliding shaft 76 in the sliding groove 75 to adjust the angle of the rotating bracket 73 relative to the support frame 72, so that the rotating bracket 73 rotates to approximately horizontal.

[0062] Step 2.23: Start the motor to drive the active rod 86 to rotate, so that the positioning frame 82 drags the sliding shaft 76 to move to an appropriate position in the sliding groove 75 during the rotation, so as to adjust the angle of the rotating bracket 73 relative to the support frame 72. When the rotating bracket 73 rotates to the horizontal, the horizontal positioning is completed by observing the level bubble 6. Turn off the motor to stop driving the active rod 86 to rotate, so that the bottom of the sliding shaft 76 of the traction bracket 74 is locked between two adjacent vertical frames of the positioning frame 82, and the top of the sliding shaft 76 of the traction bracket 74 is locked between two adjacent teeth of the rotating bracket 73.

[0063] In the above technical solution, the motor drives the active rod 86 to rotate, which in turn drives the sliding shaft 76 to move precisely within the sliding groove 75, achieving fine-tuning of the angle of the rotating support 73. This mechanized adjustment method is more precise than manual adjustment, ensuring that the steel sleeve 3 and the drill bit can maintain a very stable and precise height, thereby improving the accuracy of the chiseling operation. During the adjustment process, the steel sleeve 3 and the drill bit will not shake or shift, ensuring the stability and continuity of the chiseling operation. Precise adjustment and a stable support structure reduce safety hazards during the chiseling process, allowing operators to focus more on the chiseling operation itself without worrying about safety issues caused by equipment shaking or shifting.

[0064] The number of devices and processing scale described herein are for the purpose of simplifying the description of the invention. Applications, modifications, and variations of the invention will be readily apparent to those skilled in the art.

[0065] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A device for improving the deburring efficiency of a hand-held pneumatic drill, characterized in that, include: An air leg is installed at the handle end of the hand drill to support the hand drill at a certain height; The casing assembly includes a steel casing, an upper handle, and a lower handle. The steel casing is fitted over the outside of the drill rod of the hand drill and protrudes from the drill bit so that it is perpendicular to the dam body. A level bubble is provided on the steel casing. The upper handle and the lower handle are respectively installed above and below the steel casing. The support assembly includes a base, a support frame, a rotating bracket, and a traction bracket. The base is temporarily installed on the dam body. The support frame is vertically installed on the base. The upper part of the support frame has a first hinge point and is rotatably connected to one end of the rotating bracket. The upper middle part of the support frame has a second hinge point and is rotatably connected to one end of the traction bracket. The top surface of the rotating bracket supports the steel sleeve. The middle part of the rotating bracket to the other end has a downward-opening U-shaped structure. A sliding groove is provided on the opposite side of the U-shaped structure. The bottom surface of the U-shaped structure has locking teeth. The middle part of the traction bracket is also connected to the first hinge point and the second hinge point of the support frame by a tension spring. The middle part of the traction bracket to the other end has a Y-shaped structure. The other end of the traction bracket has a sliding shaft. The sliding shaft slides through the sliding groove. The size of the sliding shaft is slightly smaller than two adjacent locking teeth so as to be locked between two adjacent locking teeth. A positioning assembly includes a positioning box, a positioning frame, and at least one positioning structure. The positioning box has an open top and is integrally formed below the U-shaped structure. The positioning frame includes a horizontal frame and multiple vertical frames above it. The spacing between two adjacent vertical frames is set to accommodate the sliding shaft. The positioning structure includes a first bottom support, a second bottom support, a third top support, a driving rod, a connecting rod, a driven rod, and a motor. The first bottom support and the second bottom support are installed in the positioning box. The third top support is installed at the bottom of the horizontal frame and is located between the first bottom support and the second bottom support. One end of the driving rod is rotatably connected to the first bottom support and fixedly connected to the output shaft of the motor. The other end of the driving rod is rotatably connected to one end of the connecting rod. The other end of the connecting rod is rotatably connected to one end of the driven rod. The other end of the driven rod is rotatably connected to the second bottom support. An extension rod is inclinedly provided in the middle of the connecting rod, and the free end of the extension rod is rotatably connected to the third top support.

2. A method for improving the deburring efficiency of a hand-held pneumatic drill, characterized in that, Based on the apparatus for improving the deburring efficiency of a hand-held pneumatic drill as described in claim 1, the method includes: Step 1: Remove debris, sand, and stains from the concrete surface of the dam and set up roughening points; Step two includes: Step 2.1: Install the air leg at approximately the same height as the chiseling point, install the hand drill, and install the steel sleeve around the outside of the drill rod of the hand drill, with the drill bit protruding. Align the drill bit with the chiseling point and make preliminary adjustments to the position of the steel sleeve using the upper and lower handles. Step 2.2: Temporarily install the base on the dam body below the steel sleeve, so that the top surface of the rotating bracket supports the steel sleeve. Rotate the rotating bracket to precisely adjust the position of the steel sleeve, specifically as follows: Rotate the rotating bracket to move the sliding shaft in the sliding groove to adjust the angle of the rotating bracket relative to the support frame. When the rotating bracket is rotated to the horizontal, the horizontal positioning is completed by observing the level bubble, so that the top of the sliding shaft of the traction bracket is locked between two adjacent locking teeth of the rotating bracket. Step 2.2 includes: Step 2.21: Temporarily install the base on the dam body below the steel sleeve, so that the top surface of the rotating bracket supports the steel sleeve; Step 2.22: Rotate the rotating bracket to move the sliding shaft in the sliding groove, thereby adjusting the angle of the rotating bracket relative to the support frame, so that the rotating bracket rotates to a basically horizontal position; Step 2.23: Start the motor to drive the active rod to rotate, so that the positioning frame drags the sliding shaft to move to the appropriate position in the slide groove during the rotation, so as to adjust the angle of the rotating bracket relative to the support frame. When the rotating bracket rotates to the horizontal, the horizontal positioning is completed by observing the level bubble. Turn off the motor to stop driving the active rod to rotate, so that the bottom of the sliding shaft of the traction bracket is locked between two adjacent vertical frames of the positioning frame, and the top of the sliding shaft of the traction bracket is locked between two adjacent locking teeth of the rotating bracket. Step 2.3: Fix the height of the air leg; Step 3: Start the hand drill to perform the roughening operation.

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