Hacksaw with adjustable saw blade

Abstract

The utility model discloses a hacksaw with an adjustable saw blade, which relates to the technical field of hacksaws and comprises a front hacksaw frame, a connecting plate is inserted into one end of the front hacksaw frame, a rear hacksaw frame is fixedly mounted at the other end of the connecting plate, a fixing plate is arranged on the rear hacksaw frame, and the saw blade is clamped between the fixing plate and the front hacksaw frame. A mounting groove is formed in the front hacksaw frame support, a mounting hole is formed in one side of the mounting groove, a fixing assembly is mounted on the fixing plate and the front hacksaw frame support and comprises a screw, the screw is inserted into the mounting hole, a pressing plate is fixedly mounted at one end of the screw, the pressing plate and the saw blade are pressed, and the saw blade and the mounting groove are fixed conveniently through the fixing assembly, the mounting groove and the clamping groove. The distance between the front hacksaw frame and the rear hacksaw frame can be flexibly adjusted through the threaded rod, the worm gear, the worm and the connecting plate, the saw blades with different lengths can be conveniently installed, and the applicability of the hacksaw is improved.

Description

Technical Field

[0001] The utility model specifically relates to a hacksaw with an adjustable saw blade, belonging to the technical field of hacksaws. Background Art

[0002] A hacksaw is a commonly used tool that can cut round steel, flat steel, angle steel, workpieces, etc. of smaller sizes. In people's life and work, this hand-held hacksaw that can be used to saw steel, wood, and other materials such as plastic has been used more and more widely. Hacksaw frames of various styles and functions are convenient to use and inexpensive, bringing great convenience to people's work and life. Most of the existing hacksaws have a fixed length, which is not convenient for expanding the applicable range of the hacksaw frame body to accommodate saw blades of different lengths, and at the same time, it is not convenient to adjust the position of the saw blade.

[0003] For example, the publication number: CN213053048U, a hacksaw, belongs to the technical field of mechanical manufacturing tools. It solves the problems of inconvenient operation for replacing the saw blade and low service life of the existing hacksaw. This hacksaw includes a cross bar, a connecting head and a handle are respectively connected to the left and right ends of the cross bar and are arranged on the same side. A clip one for installing the saw blade is provided on the connecting head. This hacksaw also includes a long strip-shaped pull rod. The middle of the pull rod is hinged to the handle. A clip two for installing the saw blade corresponding to the clip one is provided at the lower end of the pull rod. The upper end of the pull rod is provided with a bent extension section. The extension section is located above the cross bar. A distance adjusting device for adjusting the distance between the extension section and the cross bar is also provided between the end of the extension section and the cross bar. This hacksaw has the advantages of simple structure, convenient use, and greatly facilitating the installation of the saw blade.

[0004] For the above-mentioned disclosed hacksaw, the length of the hacksaw frame is fixed, which is not convenient for flexibly adjusting the size of the hacksaw frame according to saw blades of different lengths, and the applicability is relatively low. Content of the Utility Model

[0005] The purpose of the utility model is to provide a hacksaw with an adjustable saw blade for the deficiencies of the existing technology, so as to achieve the purpose of being able to install saw blades of different lengths and improving the applicability of the utility model.

[0006] The utility model realizes the above purpose through the following technical solutions. A hacksaw with an adjustable saw blade includes a front hacksaw frame. One end of the front hacksaw frame is inserted with a connecting plate. The other end of the connecting plate is fixedly installed with a rear hacksaw frame. By adjusting the length of the connecting plate inserted inside the front hacksaw frame, the length between the front hacksaw frame and the rear hacksaw frame is adjusted. A fixing plate is installed on the rear hacksaw frame. A saw blade is clamped between the fixing plate and the front hacksaw frame. A fixing component is installed between the fixing plate and the front hacksaw frame support.

[0007] Further, to facilitate the installation of the saw blade, installation grooves are provided on the fixed plate and the front hacksaw frame, and clamping grooves are provided inside the installation grooves. The saw blade is clamped to the fixed plate and the front hacksaw frame through the clamping grooves.

[0008] Further, to facilitate the installation of the fixing component, installation holes are provided on the fixed plate and the front hacksaw frame and are located on one side of the installation groove.

[0009] Further, to facilitate pressing the saw blade against the inner wall of the installation groove, the fixing component includes a screw rod. The screw rod is inserted into the installation hole, and a pressing plate is fixedly installed at one end of the screw rod. The pressing plate presses against the saw blade.

[0010] Further, to facilitate positioning the extending length of the screw rod, a spring is sleeved on the screw rod. The two ends of the spring are respectively fixedly connected to the inner wall of the installation groove and the pressing plate. A nut is threadedly connected to the screw rod, and the nut presses against the fixed plate and the front hacksaw frame.

[0011] Further, to facilitate adjusting the length of the connecting plate inserted into the insertion groove, the front hacksaw frame is provided with an insertion groove. The connecting plate is inserted into the front hacksaw frame through the insertion groove. A threaded rod is rotatably installed inside the insertion groove. The inside of the connecting plate is a hollow structure. The connecting plate is threadedly connected to the threaded rod. By rotating the threaded rod, the length of the connecting plate inserted into the front hacksaw frame is adjusted, and further the distance between the front hacksaw frame and the rear hacksaw frame is adjusted.

[0012] Further, to facilitate the rotation of the threaded rod, a worm gear is fixedly installed on the threaded rod. A worm is engaged with the worm gear. The worm is rotatably installed inside the insertion groove. One end of the worm extending to the surface of the front hacksaw frame is fixedly installed with a handwheel. By rotating the handwheel, the worm rotates, the worm gear rotates, and the threaded rod rotates.

[0013] Further, to facilitate the limitation of the connecting plate, limiting grooves are provided inside the insertion groove. Both sides of the connecting plate are slidably installed inside the limiting grooves. A handle is installed on the rear hacksaw frame, and a rubber sleeve is installed on the handle.

[0014] Technical effects and advantages of the present utility model: Through the threaded rod, the worm gear, the worm, and the connecting plate, the distance between the front hacksaw frame and the rear hacksaw frame can be flexibly adjusted, facilitating the installation of saw blades of different lengths and improving the applicability of the present utility model. Through the fixing component, the installation groove, and the clamping groove, it is convenient to fix the saw blade to the installation groove and at the same time to clamp the saw blade to the clamping groove. Description of the Drawings

[0015] Figure 1 It is a schematic structural view of the left side perspective of the present utility model;

[0016] Figure 2 It is a schematic structural view of the right side perspective of the present utility model;

[0017] Figure 3 It is a schematic cross-sectional view of the front hacksaw frame of the present utility model;

[0018] Figure 4 It is a schematic structural view of the fixing component of the present utility model;

[0019] Figure 5 It is a schematic view of a partial structure of the present utility model;

[0020] Figure 6 It is a schematic structural view of the top perspective of the present utility model.

[0021] In the figure: 1, front hacksaw frame; 2, connecting plate; 3, rear hacksaw frame; 4, fixing plate; 5, saw blade; 6, fixing component; 601, screw; 602, pressing plate; 603, spring; 604, nut; 7, installation groove; 8, clamping groove; 9, installation hole; 10, insertion groove; 11, threaded rod; 12, worm gear; 13, worm; 14, handwheel; 15, limiting groove; 16, handle. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-6 As shown, a hacksaw with an adjustable saw blade includes a front hacksaw frame 1. One end of the front hacksaw frame 1 is inserted with a connecting plate 2. The other end of the connecting plate 2 is fixedly installed with a rear hacksaw frame 3. By adjusting the length of the connecting plate 2 inserted inside the front hacksaw frame 1, the length between the front hacksaw frame 1 and the rear hacksaw frame 3 can be adjusted, and saw blades 5 of different lengths can be installed. A fixing plate 4 is installed on the rear hacksaw frame 3. A saw blade 5 is clamped between the fixing plate 4 and the front hacksaw frame 1. A fixing component 6 is installed between the fixing plate 4 and the front hacksaw frame 1. The saw blade 5 can be firmly pressed and fixed to the front hacksaw frame 1 and the rear hacksaw frame 3 through the fixing component 6, which is convenient for flexible disassembly and installation of the saw blade 5.

[0024] The fixing plate 4 and the front hacksaw frame 1 are provided with mounting grooves 7, and clamping grooves 8 are provided inside the mounting grooves 7. The saw blade 5 is clamped with the fixing plate 4 and the front hacksaw frame 1 through the clamping grooves 8. On the fixing plate 4 and the front hacksaw frame 1, and on one side of the mounting groove 7, mounting holes 9 are provided. The fixing component 6 includes a screw rod 601, the screw rod 601 is inserted inside the mounting hole 9, a pressing plate 602 is fixedly installed at one end of the screw rod 601, the pressing plate 602 presses against the saw blade 5, a spring 603 is sleeved on the screw rod 601, and both ends of the spring 603 are fixedly connected to the inner wall of the mounting groove 7 and the pressing plate 602 respectively. A nut 604 is threadedly connected to the screw rod 601, and the nut 604 presses against the fixing plate 4 and the front hacksaw frame 1. By moving the threaded rod 11 and rotating the nut 604, the nut 604 is adjusted to a suitable position, so as to facilitate placing the saw blade 5 inside the mounting groove 7, and under the action of the elastic restoring force of the spring 603, the saw blade 5 is pressed through the pressing plate 602.

[0025] The front hacksaw frame 1 is provided with a plugging groove 10, the connecting plate 2 is plugged with the front hacksaw frame 1 through the plugging groove 10, a threaded rod 11 is rotatably installed inside the plugging groove 10, the inside of the connecting plate 2 is a hollow structure, and the connecting plate 2 is threadedly connected to the threaded rod 11. By rotating the threaded rod 11, the length of the connecting plate 2 inserted inside the front hacksaw frame 1 is adjusted, and thus the distance between the front hacksaw frame 1 and the rear hacksaw frame 3 is adjusted. A worm gear 12 is fixedly installed on the threaded rod 11, a worm 13 is engaged with the worm gear 12, the worm 13 is rotatably installed inside the plugging groove 10, and a hand wheel 14 is fixedly installed at one end of the worm 13 extending to the surface of the front hacksaw frame 1. By rotating the hand wheel 14, the worm 13 rotates, the worm gear 12 rotates, and the threaded rod 11 rotates, so as to facilitate adjusting the length of the connecting plate 2 inserted inside the plugging groove 10, and thus adjusting the distance between the front hacksaw frame 1 and the rear hacksaw frame 3, and enabling saw blades 5 of different lengths to be fixed inside the mounting groove 7, improving the applicability of the present utility model. A limiting groove 15 is provided inside the plugging groove 10, and both sides of the connecting plate 2 are slidably installed inside the limiting groove 15. The connecting plate 2 can be limited through the limiting groove 15. A handle 16 is installed on the rear hacksaw frame 3, and a rubber sleeve is installed on the handle 16.

[0026] When the present utility model is in use, according to the length of the saw blade 5, rotate the hand wheel 14, the worm 13 rotates, the worm gear 12 rotates, the threaded rod 11 rotates, and the connecting plate 2 is limited through the limiting groove 15. Adjust the length of the connecting plate 2 inserted inside the plugging groove 10, and adjust the front hacksaw frame 1 and the rear hacksaw frame 3 to a suitable distance. Pull the screw rod 601, the spring 603 is compressed, the pressing plate 602 moves, and the nut 604 contacts the fixing plate 4 and the front hacksaw frame 1. The saw blade 5 is clamped with the clamping groove 8. Repeat the above operations, adjust the nut 604 to a suitable position, cancel the force applied to the screw rod 601, and the saw blade 5 is pressed and fixed under the action of the elastic restoring force of the spring 603.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0028] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable hacksaw blade hacksaw, comprising a front hacksaw frame (1), characterized in that: One end of the front hacksaw frame (1) is inserted with a connecting plate (2), the other end of the connecting plate (2) is fixedly installed with a rear hacksaw frame (3), a fixing plate (4) is installed on the rear hacksaw frame (3), and a saw blade (5) is clamped between the fixing plate (4) and the front hacksaw frame (1), and a fixing component (6) is installed between the fixing plate (4) and the front hacksaw frame (1) bracket.

2. The hacksaw with adjustable saw blade according to claim 1, characterized in that: Installation grooves (7) are formed on the fixing plate (4) and the front hacksaw frame (1), clamping grooves (8) are formed inside the installation grooves (7), and the saw blade (5) is clamped with the fixing plate (4) and the front hacksaw frame (1) through the clamping grooves (8).

3. The hacksaw with adjustable saw blade according to claim 2, characterized in that: On the fixing plate (4) and the front hacksaw frame (1), and an installation hole (9) is formed on one side of the installation groove (7).

4. The hacksaw with adjustable saw blade according to claim 3, wherein: The fixing component (6) includes a screw rod (601), the screw rod (601) is inserted inside the installation hole (9), a pressing plate (602) is fixedly installed at one end of the screw rod (601), and the pressing plate (602) presses against the saw blade (5).

5. The hacksaw with adjustable saw blade according to claim 4, characterized in that: A spring (603) is sleeved on the screw rod (601), two ends of the spring (603) are respectively fixedly connected with the inner wall of the installation groove (7) and the pressing plate (602), a nut (604) is threadedly connected to the screw rod (601), and the nut (604) presses against the fixing plate (4) and the front hacksaw frame (1).

6. The hacksaw with adjustable saw blade according to claim 1, characterized in that: The front hacksaw frame (1) is provided with an insertion groove (10), the connecting plate (2) is inserted into the front hacksaw frame (1) through the insertion groove (10), a threaded rod (11) is rotatably installed inside the insertion groove (10), the inside of the connecting plate (2) is a hollow structure, and the connecting plate (2) is threadedly connected with the threaded rod (11).

7. The hacksaw with adjustable saw blade according to claim 6, characterized in that: A worm gear (12) is fixedly installed on the threaded rod (11), a worm (13) is engaged with the worm gear (12), the worm (13) is rotatably installed inside the insertion groove (10), and a hand wheel (14) is fixedly installed at one end of the worm (13) extending to the surface of the front hacksaw frame (1).

8. The hacksaw with adjustable saw blade according to claim 1, characterized in that: A limiting groove (15) is formed inside the insertion groove (10), two sides of the connecting plate (2) are slidably installed inside the limiting groove (15), a handle (16) is installed on the rear hacksaw frame (3), and a rubber sleeve is installed on the handle (16).

Images