Adjustable portable hand saw

Abstract

The utility model discloses an adjustable portable hand saw, which relates to the technical field of hand saws and comprises a grip and a saw blade, and an adjusting mechanism is arranged in the grip. The adjusting mechanism comprises a threaded rod, a connecting piece, a worm and a worm gear, a storage groove is formed in the grip, a movable groove is formed in the top of the storage groove, the threaded rod is rotationally connected into the movable groove, and the connecting piece is fixedly installed at the top of one end of the saw blade; according to the technical scheme, the adjusting mechanism is adopted, the worm wheel can be driven to rotate through rotation of the worm, the threaded rod can rotate through rotation of the worm wheel, and therefore the threaded rod can be controlled to rotate by rotating the worm, and the threaded rod can drive the connecting piece to slide in the movable groove when rotating. The extension length of the saw blade can be controlled by controlling the threaded rod to rotate, the extension length of the saw blade can be adjusted, the hand saw is more convenient to use, and the hand saw can be more convenient to carry after the saw blade is stored in the grip.

Description

Technical Field

[0001] The utility model relates to the technical field of handsaws, in particular to an adjustable portable handsaw. Background Art

[0002] A handsaw is a common manual tool used for cutting various materials such as wood, metal, plastic, etc. It is mainly applied to processing occasions such as dividing materials or workpieces or sawing grooves. It is suitable for processing smaller materials or workpieces. Due to its convenient carrying and easy operation, it is very popular among people.

[0003] When using a traditional handsaw, the length of the saw blade usually cannot be adjusted, resulting in the need to replace handsaws with saw blades of different lengths for processing when dividing or sawing grooves on larger or smaller objects. And handsaws are usually not convenient to carry because they are equipped with saw blades. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an adjustable portable handsaw to solve the problems that when using the handsaw in the prior art, the length of the saw blade usually cannot be adjusted, resulting in the need to replace handsaws with saw blades of different lengths for processing when dividing or sawing grooves on larger or smaller objects, and handsaws are usually not convenient to carry because they are equipped with saw blades.

[0005] In view of this, the utility model provides an adjustable portable handsaw, including a grip and a saw blade, and an adjusting mechanism is arranged inside the grip;

[0006] The adjusting mechanism includes a threaded rod, a connecting piece, a worm and a worm gear. A storage groove is opened inside the grip, a movable groove is opened at the top of the storage groove, the threaded rod is rotatably connected inside the movable groove, the connecting piece is fixedly installed at the top of one end of the saw blade, the worm is rotatably connected inside the grip, the worm gear is fixedly installed at one end of the side wall of the threaded rod, and the worm is engaged with the worm gear.

[0007] Optionally, the connecting piece is slidably connected inside the movable groove, and the connecting piece is movably connected to the side wall of the threaded rod.

[0008] Optionally, a support pad is fixedly installed on the inner wall of the storage groove.

[0009] Optionally, the support pad is L-shaped.

[0010] Optionally, a plurality of finger grooves are opened on one side of the grip.

[0011] Optionally, an adjusting part is fixedly installed at one end of the worm, and the adjusting part is located on one side of the grip.

[0012] Optionally, an installation groove is formed at one end of the storage groove, and an installation shaft is rotatably connected inside the installation groove through a torsion spring.

[0013] Optionally, a baffle is fixedly installed on the side wall of the installation shaft, and the baffle fits with the storage groove.

[0014] Optionally, a protective pad is fixedly installed on one side of the baffle.

[0015] Optionally, a limiting block is fixedly installed at one end of the baffle, and a limiting groove matching the limiting block is formed at one end of the storage groove.

[0016] As can be seen from the above technical solutions, the embodiments of the present utility model have the following advantages:

[0017] 1. An adjustable portable handsaw of the present utility model adopts an adjustment mechanism. By rotating the worm, the worm gear can be driven to rotate. By rotating the worm gear, the threaded rod can be rotated. Thus, by rotating the worm, the rotation of the threaded rod can be controlled. When the threaded rod rotates, it can drive the connecting piece to slide inside the movable groove, so that the saw blade can slide inside the storage groove. By controlling the rotation of the threaded rod, the protruding length of the saw blade can be controlled, and the protruding length of the saw blade can be adjusted, making the handsaw more convenient to use. After the saw blade is retracted into the handle, the handsaw is more convenient to carry.

[0018] 2. An adjustable portable handsaw of the present utility model adopts the design of a baffle. With such a design, when the saw blade is retracted into the storage groove and the installation shaft is driven to rotate by the torsion spring, the baffle can move to one end of the storage groove to block the storage groove, thereby reducing the entry of external dust or impurities into the storage groove and avoiding affecting the saw blade inside the storage groove.

[0019] These features and advantages of the present utility model will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following further describes the present utility model with reference to the drawings:

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0023] Figure 3 is the present utility model Figure 2 the enlarged structural diagram at A in;

[0024] Figure 4 is a schematic cross-sectional structural diagram of the partial handle of the present utility model.

[0025] Description of the reference numerals: 1, grip; 2, saw blade; 3, finger groove; 4, adjusting member; 5, baffle; 6, storage groove; 7, support pad; 8, movable groove; 9, threaded rod; 10, connecting member; 11, worm; 12, worm gear; 13, mounting groove; 14, mounting shaft; 15, protective pad; 16, limiting groove; 17, limiting block. Detailed implementation mode

[0026] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model, not all of them. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all fall within the protection scope of the present utility model.

[0027] The following specifically describes an adjustable portable handsaw according to an embodiment of the present utility model with reference to the accompanying drawings.

[0028] Embodiment 1

[0029] For ease of understanding, please refer to Figures 1 to 4 , an embodiment of an adjustable portable handsaw provided by the present utility model includes a grip 1 and a saw blade 2, and an adjustment mechanism is arranged inside the grip 1;

[0030] The adjustment mechanism includes a threaded rod 9, a connecting member 10, a worm 11 and a worm gear 12. A storage groove 6 is opened inside the grip 1, a movable groove 8 is opened at the top of the storage groove 6, the threaded rod 9 is rotatably connected inside the movable groove 8, the connecting member 10 is fixedly installed at the top of one end of the saw blade 2, the worm 11 is rotatably connected inside the grip 1, the worm gear 12 is fixedly installed at one end of the side wall of the threaded rod 9, the worm 11 is engaged with the worm gear 12, the connecting member 10 is slidably connected inside the movable groove 8, and the connecting member 10 is movably connected to the side wall of the threaded rod 9.

[0031] It should be noted that by movably connecting the connecting member 10 with the threaded rod 9, the threaded rod 9 can drive the connecting member 10 to slide inside the movable groove 8 when rotating, so that the saw blade 2 can slide inside the storage groove 6. By controlling the rotation of the threaded rod 9, the protruding length of the saw blade 2 can be controlled. By setting the worm 11, the rotation of the worm 11 can drive the rotation of the worm gear 12, and by the rotation of the worm gear 12, the threaded rod 9 can be rotated. Thus, the rotation of the threaded rod 9 can be controlled by rotating the worm 11, and by setting the worm 11, the protruding length of the saw blade 2 can be adjusted more quickly during use, making the handsaw more convenient to use. After the saw blade 2 is retracted into the grip 1, the handsaw is more convenient to carry.

[0032] In some embodiments, as Figure 2 shown, a support pad 7 is fixedly installed on the inner wall of the storage groove 6, and the support pad 7 is L-shaped.

[0033] It should be noted that by installing the support pad 7 on the inner wall of the storage groove 6, the saw blade 2 can be supported after being retracted into the storage groove 6, preventing the saw blade 2 from shaking inside the storage groove 6, thereby preventing scratches from being scraped on the inner part of the storage groove 6 by the saw blade 2 and also preventing damage caused by collision between the saw blade 2 and the storage groove 6.

[0034] In some embodiments, as Figure 1 shown, a plurality of finger grooves 3 are provided on one side of the grip 1.

[0035] It should be noted that by providing the finger grooves 3, when holding the grip 1 during use, the fingers can be inserted into the finger grooves 3, making the holding of the grip 1 more comfortable.

[0036] In some embodiments, as Figure 1 shown, an adjusting member 4 is fixedly installed at one end of the worm 11, and the adjusting member 4 is located on one side of the grip 1.

[0037] It should be noted that by providing the adjusting member 4, it is convenient to control the rotation of the worm 11, making it more convenient to rotate the worm 11.

[0038] Embodiment 2

[0039] In some embodiments, as Figure 4 shown, an installation groove 13 is provided at one end of the storage groove 6. An installation shaft 14 is rotatably connected to the inside of the installation groove 13 through a torsion spring. A baffle 5 is fixedly installed on the side wall of the installation shaft 14. The baffle 5 fits with the storage groove 6. A protective pad 15 is fixedly installed on one side of the baffle 5. A limiting block 17 is fixedly installed at one end of the baffle 5. A limiting groove 16 matching the limiting block 17 is provided at one end of the storage groove 6.

[0040] It should be noted that by providing the torsion spring, the installation shaft 14 can always rotate to one side. By installing the baffle 5 on the side wall of the installation shaft 14, after the saw blade 2 is retracted into the storage groove 6, when the installation shaft 14 is driven to rotate by the torsion spring, the baffle 5 can move to one end of the storage groove 6 to block the storage groove 6, thereby reducing the influence of external dust or impurities entering the storage groove 6 on the saw blade 2 inside the storage groove 6. By providing the protective pad 15, it can contact one side of the saw blade 2 after the saw blade 2 extends, thereby preventing friction between the saw blade 2 and the baffle 5 during use and avoiding damage to the saw blade 2 or the baffle 5. By providing the limiting block 17 and the limiting groove 16, the position of the baffle 5 can be limited to prevent the baffle 5 from rotating excessively.

[0041] The worm 11 and the worm gear 12 in the present utility model are well-known components and will not be elaborated here.

[0042] Working principle: When in use, rotating the adjusting member 4 can control the rotation of the worm 11. The rotation of the worm 11 can drive the rotation of the worm wheel 12, and the rotation of the worm wheel 12 can cause the threaded rod 9 to rotate. Thus, the rotation of the threaded rod 9 can be controlled by rotating the worm 11. When the threaded rod 9 rotates, it can drive the connecting member 10 to slide inside the movable groove 8, so that the saw blade 2 can slide inside the storage groove 6. By controlling the rotation of the threaded rod 9, the extended length of the saw blade 2 can be controlled, and the extended length of the saw blade 2 can be adjusted. When the hand saw needs to be carried, the saw blade 2 is retracted into the storage groove 6 by rotating the adjusting member 4. After the saw blade 2 is retracted into the storage groove 6, when the torsion spring drives the mounting shaft 14 to rotate, the baffle 5 moves to one end of the storage groove 6 to block the storage groove 6, thereby reducing the influence of external dust or impurities entering the storage groove 6 on the saw blade 2 inside the storage groove 6. By installing the support pad 7 on the inner wall of the storage groove 6, the saw blade 2 can be supported after it is retracted into the storage groove 6, avoiding the saw blade 2 from shaking inside the storage groove 6, thus preventing scratches from being scraped on the inner part of the storage groove 6 by the saw blade 2, and at the same time preventing damage caused by the collision between the saw blade 2 and the storage groove 6. After the saw blade 2 is retracted into the handle 1, the hand saw can be carried more conveniently.

[0043] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. An adjustable portable hand saw, characterized in that: It comprises a handle (1) and a saw blade (2), wherein an adjustment mechanism is arranged inside the handle (1); The adjusting mechanism comprises a threaded rod (9), a connecting piece (10), a worm (11) and a worm wheel (12); a receiving groove (6) is provided inside the handle (1); a movable groove (8) is provided at the top of the receiving groove (6); the threaded rod (9) is rotatably connected inside the movable groove (8); the connecting piece (10) is fixedly mounted on the top of one end of the saw blade (2); the worm (11) is rotatably connected inside the handle (1); the worm wheel (12) is fixedly mounted on one end of the side wall of the threaded rod (9); and the worm (11) fits with the worm wheel (12).

2. The adjustable portable hand saw according to claim 1, characterized in that: The connecting member (10) is slidably connected inside the movable groove (8), and the connecting member (10) is movably connected to the side wall of the threaded rod (9).

3. The adjustable portable hand saw according to claim 1, characterized in that: A support pad (7) is fixedly mounted on the inner wall of the storage groove (6).

4. The adjustable portable hand saw according to claim 3, characterized in that: The support pad (7) is L-shaped.

5. The adjustable portable hand saw according to claim 1, characterized in that: A plurality of finger grooves (3) are provided on one side of the handle (1).

6. The adjustable portable hand saw according to claim 1, characterized in that: An adjusting member (4) is fixedly mounted on one end of the worm (11), and the adjusting member (4) is located on one side of the handle (1).

7. The adjustable portable hand saw according to claim 1, characterized in that: A mounting groove (13) is provided at one end of the storage groove (6), and a mounting shaft (14) is rotatably connected inside the mounting groove (13) via a torsion spring.

8. The adjustable portable hand saw according to claim 7, characterized in that: A baffle (5) is fixedly mounted on the side wall of the mounting shaft (14), and the baffle (5) fits in with the storage groove (6).

9. The adjustable portable hand saw according to claim 8, characterized in that: A protective pad (15) is fixedly mounted on one side of the baffle (5).

10. The adjustable portable hand saw according to claim 8, characterized in that: A limiting block (17) is fixedly mounted on one end of the baffle (5), and a limiting groove (16) matching the limiting block (17) is formed at one end of the receiving groove (6).

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