Adjustable power-assisted hand saw device externally connected to a hand drill

Abstract

The application discloses an adjustable power-assisted hand saw device connected with a hand drill, which comprises a bottom plate, a connecting assembly, an adjusting assembly, a hand saw, a hand drill and a bench vice. The connecting assembly is arranged on the bottom plate, the adjusting assembly is arranged on the connecting assembly and is used for adjusting the movement range and the sawing angle of the hand saw, the hand saw is arranged on the adjusting assembly, the hand drill is arranged on the adjusting assembly and assists the adjusting assembly and the hand saw in sawing materials, and the bench vice is arranged on the bottom plate and is used for fixing the materials. Through the cooperation among the bottom plate, the connecting assembly, the adjusting assembly, the hand saw, the hand drill and the bench vice, power assistance is realized when a worker uses the hand saw, so that the production efficiency is improved and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hand saws, in particular to an adjustable power-assisted hand saw device externally connected to an electric hand drill. Background Art

[0002] At present, electric saws are mostly used for sawing materials. Electric saws are driven by electricity, which saves time and effort. Compared with hand saws, electric saws have faster cutting speeds. However, due to the thicker saw blades and larger cutting volume, and the larger vibration caused by the rotation of the motor, when using electric saws to saw materials, the sawing accuracy is not as high as that of hand saws, and the sawing depth is generally difficult to control. Especially when sawing some materials with high precision requirements, workers often use hand saws to saw them. However, hand saws are mostly manually operated, with low sawing efficiency and high labor intensity. Therefore, a power-assisting device for hand saws is urgently needed. Summary of the Invention

[0003] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of this application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions should not be used to limit the scope of the present invention.

[0004] The technical problem to be solved by the present invention is that when sawing some materials with high precision requirements, workers often still need to use hand saws to saw them, but hand saws are mostly manually operated, which has the problems of low sawing efficiency and high labor intensity.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an adjustable power-assisted hand saw device connected to an external electric hand drill, which includes a base plate, a connecting assembly, an adjustment assembly, a hand saw, an electric hand drill and a vise. The connecting assembly is arranged on the base plate, and the adjustment assembly is arranged on the connecting assembly for adjusting the motion amplitude and sawing angle of the hand saw. The hand saw is arranged on the adjustment assembly, and the electric hand drill is arranged on the adjustment assembly to assist the adjustment assembly and the hand saw in sawing the material. The vise is arranged on the base plate for fixing the material.

[0006] As a preferred solution of the adjustable power-assisted hand saw device for an external hand drill described in the present invention, the connecting assembly includes a connecting plate, a first rotating shaft, an upper cover plate and a second rotating shaft. The connecting plate is connected to the base plate through the first rotating shaft, and the upper cover plate is connected to the connecting plate through the second rotating shaft to realize the forward and backward movement and angle adjustment of the hand saw structure. By holding the hand saw handle, the rotation and forward and backward movement of the hand saw are realized through the relative rotation of the first rotating shaft and the second rotating shaft.

[0007] As a preferred solution of the adjustable power-assisted hand saw device of the external hand drill described in the present invention, the connecting assembly further includes four hanging ears, two first connecting blocks and a shaft sleeve, the four hanging ears are symmetrically arranged on the connecting plate, the two first connecting blocks are symmetrically arranged on the base plate, the first rotating shaft passes through the hanging ears and the first connecting blocks to realize the connection between the connecting plate and the base plate, and at the same time, in order to ensure the reliability of rotation, bearings are installed between the hanging ears and the first connecting blocks and the first rotating shaft, the shaft sleeve is arranged on the upper cover plate, the second rotating shaft passes through the shaft sleeve and is rotatably connected to the hanging ears on the connecting plate to realize the connection between the upper cover plate and the connecting plate, and at the same time, a sufficient distance is maintained between the shaft sleeve and the hanging ears on the connecting plate, so that the shaft sleeve can rotate along the second rotating shaft and can also move axially on the second rotating shaft.

[0008] As a preferred solution of the adjustable power-assisted hand saw device for an external hand drill described in the present invention, the adjustment assembly includes a fixed frame, a moving part and an adjusting part, the fixed frame is arranged on the connecting plate, the moving part is arranged on the fixed frame, and the adjusting part is arranged on the moving part for adjusting the angle of the hand saw.

[0009] As a preferred solution of the adjustable power-assisted hand saw device of the external hand electric drill described in the present invention, the moving part includes a connecting rod, a disc, a shift rod, a shift ring, a moving rod and a second connecting block. The connecting rod is arranged on the fixed frame, the connecting rod passes through the fixed frame, and the end of the connecting rod away from the fixed frame is connected to the hand electric drill. The disc is arranged at the end of the connecting rod close to the fixed frame, the shift rod is arranged on the disc, the moving rod is symmetrically arranged on both sides of the shift ring, the shift rod is located in the shift ring, a through hole is opened on the fixed frame, the moving rod passes through the through hole, the fixed frame plays a certain supporting role, supporting the moving rod and the shift ring, the second connecting block is arranged at the end of the moving rod away from the shift ring, and the hand saw is fixed to the second connecting block by bolts to facilitate fixing the hand saw.

[0010] As a preferred solution of the adjustable power-assisted hand saw device for an external hand drill described in the present invention, the moving part further includes a notch, two splints and a screw, the notch is opened on the disc, the shift rod is located in the notch to facilitate adjustment of the amplitude of the reciprocating motion of the moving rod, the two splints are arranged on both sides of the notch, and the screw is arranged on the splint to fix the shift rod.

[0011] As a preferred solution of the adjustable power-assisted hand saw device for the external hand drill described in the present invention, the adjusting part includes two square sleeves and a fastening screw, the two square sleeves are symmetrically arranged on both sides of the dial ring to fix the moving rod, and the fastening screw is arranged on the square sleeve to lock the moving rod.

[0012] As a preferred solution of the adjustable power-assisted hand saw device connected to an external hand drill of the present invention, vertical scales are provided on the movable rod and angular scales are provided on the fixed frame to facilitate precise adjustment of the angle of the hand saw.

[0013] The beneficial effects of the present invention are:

[0014] 1. Through the mutual cooperation between the base plate, connecting components, adjusting components, hand drill and bench vise, the workers can achieve the power of hand saw when using the hand saw, thereby improving production efficiency and reducing labor intensity;

[0015] 2. The position movement of this device during sawing is mainly controlled by the operator holding the handle of the hand saw, which can accurately control the position and depth of sawing;

[0016] 3. This device not only has the high precision of hand sawing during use, but also saves time and effort. At the same time, it can be powered by an external hand drill, making full use of the hand drill and saving the cost of installing another motor.

[0017] 4. The sawing angle and amplitude of the hand saw of this device are adjustable. The angle of the hand saw can be adjusted so that the saw blade can cut both bevels and straight edges, so that it has a wider range of uses. The amplitude of the reciprocating motion of the hand saw can be adjusted so that the hand saw can adapt to sawing materials of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall structure of an adjustable power-assisted hand saw device connected to an external electric hand drill.

[0020] Figure 2 This is a schematic diagram of the oblique sawing structure of an adjustable power-assisted hand saw device connected to an external electric hand drill.

[0021] Figure 3 This is a schematic diagram of the adjustment component position structure of an adjustable power-assisted hand saw device connected to an external hand drill.

[0022] Figure 4 This is a schematic diagram of another angle position structure of the adjustment component of the adjustable power-assisted hand saw device connected to an external hand drill.

[0023] Figure 5 Adjustable power-assisted hand saw device for external electric drill Figure 3 Enlarged view of point A in the middle.

[0024] Figure 6 Fig. 2 is a schematic diagram of a straight cutting state of the hand saw of the adjustable power-assisted hand saw device.

[0025] Figure 7 Fig. 3 is a schematic diagram of an inclined cutting state of the hand saw of the adjustable power-assisted hand saw device.

[0026] In the figure: 1, base plate; 2, connecting assembly; 21, connecting plate; 22, first rotating shaft; 23, upper cover plate; 24, second rotating shaft; 25, hanging ear; 26, first connecting block; 27, shaft sleeve; 3, adjusting assembly; 31, fixing frame; 311, angular scale; 32, moving piece; 321, connecting rod; 322, disc; 3221, notch; 323, lever; 324, lever ring; 325, moving rod; 3251, vertical scale line; 326, second connecting block; 327, clamping plate; 328, screw; 33, adjusting piece; 331, square sleeve; 332, fastening screw; 4, hand saw; 5, electric drill; 6, bench vice; 7, material. DETAILED DESCRIPTION

[0027] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0028] In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0029] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is separate or alternative to other embodiments. EMBODIMENT

[0030] REFERENCE Figures 1 to 7 The embodiment provides an adjustable power-assisted hand saw device of an external electric drill, which comprises a base plate 1, a connecting assembly 2, an adjusting assembly 3, a hand saw 4, an electric drill 5 and a bench vice 6. The connecting assembly 2 is arranged on the base plate 1, the adjusting assembly 3 is arranged on the connecting assembly 2 and is used for adjusting the movement amplitude and the cutting angle of the hand saw 4, the hand saw 4 is arranged on the adjusting assembly 3, the electric drill 5 is arranged on the adjusting assembly 3 and assists the adjusting assembly 3 and the hand saw 4 to cut the material 7, and the bench vice 6 is arranged on the base plate 1 and is used for fixing the material 7.

[0031] The bottom plate 1 is a rectangular structure. As the installation base of the device, the bottom plate 1 can be fixed on any working plane by bolts to facilitate the installation and fixation of the entire device. A connecting component 2 is installed on the upper surface of one side of the bottom plate 1, which can realize the back and forth movement of the hand saw 4 as a whole above the bottom plate 1, so as to better operate the hand saw 4 and realize the effect of manually controlling the sawing depth. An adjusting component 3 is installed on the connecting component 2 for adjusting the movement amplitude and sawing angle of the hand saw 4. While realizing the sawing of materials 7 of different hardness, it can also realize the sawing of materials 7 of different angles. Sawing, the hand saw 4 is installed on the adjusting component 3. It should be noted that the hand saw 4 in this embodiment can be replaced with different sizes according to actual usage requirements to improve the applicability of the device. A hand drill 5 is installed on the adjusting component 3 to provide reciprocating motion power for the hand saw 4. It should be noted that the speed of the hand drill 5 in this embodiment can be adjusted to assist the adjusting component 3 and the hand saw 4 to saw the material 7. A vise 6 is installed on the upper surface of the base plate 1 at a position corresponding to the hand saw 4. The material 7 is clamped and fixed by the vise 6 to facilitate better sawing of the material 7.

[0032] Specifically, the connecting assembly 2 includes a connecting plate 21, a first rotating shaft 22, an upper cover plate 23 and a second rotating shaft 24. The connecting plate 21 is connected to the base plate 1 through the first rotating shaft 22, and the upper cover plate 23 is connected to the connecting plate 21 through the second rotating shaft 24 to realize the forward and backward movement and angle adjustment of the partial structure of the hand saw 4. The handle of the hand saw 4 is held in the hand, and the rotation and forward and backward movement of the hand saw 4 are realized through the relative rotation of the first rotating shaft 22 and the second rotating shaft 24.

[0033] Furthermore, the connecting assembly 2 also includes four hanging ears 25, two first connecting blocks 26 and a sleeve 27. The four hanging ears 25 are symmetrically arranged on the connecting plate 21, the two first connecting blocks 26 are symmetrically arranged on the base plate 1, and the sleeve 27 is arranged on the upper cover plate 23.

[0034] By symmetrically installing four hanging ears 25 at the upper and lower ends of the connecting plate 21, one end of the bottom plate 1 connected to the connecting plate 21 is symmetrically installed with two connecting blocks that match the hanging ears 25 at the lower end of the connecting plate 21. The first rotating shaft 22 passes through the hanging ears 25 and the first connecting block 26 and is rotatably connected to them through the bearing, so that the connecting plate 21 can rotate along the first rotating shaft 22 to ensure the reliability of the connection between the bottom plate 1 and the connecting plate 21. A shaft sleeve 27 is fixedly installed on the upper surface of the side where the upper cover plate 23 is connected to the connecting plate 21. The second rotating shaft 24 passes through the shaft The sleeve 27 is rotatably connected to the upper end ear 25 of the connecting plate 21 to realize the connection between the upper cover plate 23 and the connecting plate 21. At the same time, a sufficient distance is maintained between the left and right sides of the sleeve 27 and the upper end ear 25 of the connecting plate 21, so that the sleeve 27 can rotate along the second rotating shaft 24 and can also move axially on the second rotating shaft 24 to ensure that the saw blade of the hand saw 4 can move horizontally while moving downward when beveling, thereby realizing the hand saw 4 to cut the material 7 at different angles, increasing the scope of application of the device, and thus improving production efficiency.

[0035] The adjustment assembly 3 includes a fixed frame 31 , a moving part 32 and an adjusting part 33 . The fixed frame 31 is arranged on the connecting plate 21 , the moving part 32 is arranged on the fixed frame 31 , and the adjusting part 33 is arranged on the moving part 32 for adjusting the angle of the hand saw 4 .

[0036] The adjustment assembly 3 is mainly composed of a fixed frame 31, a moving part 32 and an adjusting part 33. The fixed frame 31 is an "I"-shaped structure as a whole, and is fixedly installed on the end of the upper cover 23 away from the shaft sleeve 27, playing the role of fixing the moving part 32. The adjusting part 33 is installed on the moving part 32. The sawing angle of the hand saw 4 can be adjusted by the adjusting part 33 to enable the hand saw 4 to saw the material 7 at different angles.

[0037] Specifically, the moving part 32 includes a connecting rod 321, a disc 322, a shift rod 323, a shift ring 324, a moving rod 325 and a second connecting block 326. The connecting rod 321 is arranged on the fixed frame 31, the connecting rod 321 passes through the fixed frame 31, and the end of the connecting rod 321 away from the fixed frame 31 is connected to the electric hand drill 5. The disc 322 is arranged at the end of the connecting rod 321 close to the fixed frame 31, the shift rod 323 is arranged on the disc 322, the moving rod 325 is symmetrically arranged on both sides of the shift ring 324, the shift rod 323 is located in the shift ring 324, a through hole is opened on the fixed frame 31, the moving rod 325 passes through the through hole, the second connecting block 326 is arranged at the end of the moving rod 325 away from the shift ring 324, and the hand saw 4 is fixed to the second connecting block 326 by bolts.

[0038] Furthermore, the moving part 32 also includes a slot 3221, two splints 327 and a screw 328. The slot 3221 is opened on the disc 322, the lever 323 is located in the slot 3221, the two splints 327 are arranged on both sides of the slot 3221, and the screw 328 is arranged on the splint 327 to fix the lever 323.

[0039] The moving part 32 is mainly composed of a connecting rod 321, a disc 322, a shift rod 323, a shift ring 324, a moving rod 325 and a second connecting block 326. A hole is provided on the fixed frame 31. The connecting rod 321 passes through the hole and is installed in the hole through a bearing, so that the connecting rod 321 and the fixed frame 31 are rotatably connected. The end of the connecting rod 321 away from the fixed frame 31 is connected to the manual drill. The manual drill in this embodiment can be held by the user or fixed. The disk 322 is fixedly installed on the end of the connecting rod 321 close to the fixed frame 31. Furthermore, a notch 3221 is provided on the disk 322 to cooperate with the shift rod 323. The shift rod 323 can move up and down in the notch 3221 to adjust the amplitude of the reciprocating motion of the moving rod 325. The closer the position of the shift rod 323 is to the top of the shift ring 324, the amplitude of the forward and backward movement of the hand saw 4 The second connecting block 326 is fixed on the outer side of the fixing frame 31, and the second connecting block 326 is fixed on the fixing frame 31. The second connecting block 326 is located on the outer side of the fixing frame 31, and the hand saw 4 can be fixed on the second connecting block 326 by bolts.

[0040] The adjusting member 33 includes two square sleeves 331 and a fastening screw 332 . The two square sleeves 331 are symmetrically arranged on both sides of the dial ring 324 to fix the moving rod 325 . The fastening screw 332 is arranged on the square sleeves 331 .

[0041] By symmetrically installing two square sleeves 331 on both sides of the dial ring 324, the dial ring 324 is connected to the moving rod 325 through the square sleeves 331, so that the moving rod 325 can be rotated to adjust the inclination angle of the hand saw 4, so that the hand saw 4 can saw bevels of different angles. A fastening screw 332 is installed on the square sleeve 331, and the moving rod 325 is locked by the fastening screw 332 to prevent the moving rod 325 from rotating relative to the hand saw 4 during the sawing process. Furthermore, vertical scale lines 3251 are provided on the moving rod 325, and an angle scale 311 is provided on the fixed frame 31. When adjusting the angle of the hand saw 4, the moving rod 325 is rotated, and the vertical scale lines 3251 on the moving rod 325 are aligned with the angle scale 311 on the fixed frame 31, so as to facilitate the precise adjustment of the inclination angle of the hand saw 4 and achieve precise sawing of the material 7.

[0042] When in use, the user first adjusts the position of the lever 323 according to the hardness of the material 7 to be sawed, and clamps the lever 323 by tightening the screw 328. Then, the user holds the handle of the hand saw 4, moves the saw blade forward and backward to align the material 7 to be sawed, and then starts the hand drill 5. The hand drill 5 drives the disc 322 to rotate through the connecting rod 321, and the disc 322 drives the moving rod 325 to reciprocate through the lever 323. The moving rod 325 drives the hand saw 4 to move back and forth through the second connecting block 326 to saw the material 7. At the same time, the hand is pressed down to achieve a certain depth of sawing and turn off the hand drill 5. If the amplitude of the forward and backward movement of the hand saw 4 needs to be adjusted, the position of the lever 323 in the slot 3221 can be adjusted to achieve it. If the material 7 needs to be sawed straight, there is no need to adjust the angle of the hand saw 4. If the material 7 needs to be sawed obliquely, the fastening screw 332 can be loosened, and the moving rod 325 can be rotated by rotating the hand saw 4. The vertical scale 3251 on the moving rod 325 is aligned with the angular scale 311 on the fixed frame 31, so as to facilitate the precise adjustment of the inclination angle of the hand saw 4 and achieve precise sawing of the material 7. After completing the angle adjustment, tighten the fastening screw 332 to lock the moving rod 325 to prevent the moving rod 325 from rotating relative to the hand saw 4 during the sawing process. After completing the adjustment, start the electric hand drill 5 again, and the electric hand drill 5 drives the hand saw 4 to saw the material 7, thereby achieving rapid sawing of the solid material 7, improving production efficiency and reducing labor intensity.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An adjustable power-assisted hand saw device connected to an external electric hand drill, characterized in that: The utility model comprises a base plate (1), a connecting component (2), an adjusting component (3), a hand saw (4), a hand electric drill (5) and a bench vise (6), wherein the connecting component (2) is arranged on the base plate (1), the adjusting component (3) is arranged on the connecting component (2) and is used to adjust the movement amplitude and sawing angle of the hand saw (4), the hand saw (4) is arranged on the adjusting component (3), the hand electric drill (5) is arranged on the adjusting component (3) and assists the adjusting component (3) and the hand saw (4) in sawing the material, and the bench vise (6) is arranged on the base plate (1) and is used to fix the material; The connecting assembly (2) comprises a connecting plate (21), a first rotating shaft (22), an upper cover plate (23) and a second rotating shaft (24); the connecting plate (21) is connected to the bottom plate (1) via the first rotating shaft (22); and the upper cover plate (23) is connected to the connecting plate (21) via the second rotating shaft (24); The connecting assembly (2) further comprises four hanging ears (25), two first connecting blocks (26) and a shaft sleeve (27), wherein the four hanging ears (25) are symmetrically arranged on the connecting plate (21), the two first connecting blocks (26) are symmetrically arranged on the bottom plate (1), and the shaft sleeve (27) is arranged on the upper cover plate (23); The adjusting assembly (3) comprises a fixed frame (31), a moving member (32) and an adjusting member (33), wherein the fixed frame (31) is arranged on the connecting plate (21), the moving member (32) is arranged on the fixed frame (31), and the adjusting member (33) is arranged on the moving member (32) for adjusting the angle of the hand saw (4); The moving part (32) includes a connecting rod (321), a disc (322), a shifting rod (323), a shifting ring (324), a moving rod (325) and a second connecting block (326). The connecting rod (321) is arranged on the fixing frame (31). The connecting rod (321) passes through the fixing frame (31). The end of the connecting rod (321) away from the fixing frame (31) is connected to the hand electric drill (5). The disc (322) is arranged on the connecting rod (321) close to the fixing frame (31). The shifting rod (323) is arranged on one end of the disk (322), the moving rod (325) is symmetrically arranged on both sides of the shifting ring (324), the shifting rod (323) is located in the shifting ring (324), a through hole is opened on the fixing frame (31), the moving rod (325) passes through the through hole, the second connecting block (326) is arranged at one end of the moving rod (325) away from the shifting ring (324), and the hand saw (4) is fixed to the second connecting block (326) by bolts.

2. The adjustable power-assisted hand saw device for an external electric hand drill according to claim 1, characterized in that: The moving part (32) further includes a notch (3221), two clamping plates (327) and a screw (328), wherein the notch (3221) is formed on the disc (322), the shifting rod (323) is located in the notch (3221), the two clamping plates (327) are arranged on both sides of the notch (3221), and the screw (328) is arranged on the clamping plates (327).

3. The adjustable power-assisted hand saw device for an external electric hand drill according to claim 1, characterized in that: The adjusting member (33) comprises two square sleeves (331) and a fastening screw (332), wherein the two square sleeves (331) are symmetrically arranged on both sides of the dial ring (324), and the fastening screw (332) is arranged on the square sleeves (331).

4. The adjustable power-assisted hand saw device for an external hand drill as claimed in claim 3, characterized in that: The movable rod (325) is provided with a vertical scale line (3251), and the fixed frame (31) is provided with an angular scale (311).

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