Hacksaw with combined variable saw blades

Abstract

The utility model discloses a hacksaw with a combined variable saw blade, and relates to the technical field of hacksaws. Comprising a saw handle, two vertical rods are formed at the bottom of the saw handle, a rotating assembly is arranged between rod bodies at the bottoms of the two vertical rods, a plurality of saw blades are installed on the rotating assembly, and saw teeth of the saw blades face the outer side of the rotating assembly. The connecting block, the rotating assembly and the limiting assembly are arranged, when saw blades need to be replaced, the rotating shaft is rotated, the inserting rods on the two sides are separated from the inserting holes in the corresponding sides, after the connecting block is rotated by 180 degrees, the positions of the two saw blades are replaced, then the rotating shaft is reversely rotated, and the movable plates on the two sides correspondingly move; according to the steel saw, the connecting blocks are inserted into the inserting holes in the corresponding sides until the inserting rods on the two sides can be inserted into the inserting holes in the corresponding sides at the same time, the connecting blocks are limited, then the two saw blades can be combined together, the positions of the saw blades can be changed to adapt to different to-be-cut materials, the steel saw is easy to operate, the replacement time of the different saw blades is saved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel saw technical field, concretely is a kind of steel saw of combined changeable saw blade. BACKGROUND

[0002] Steel saw is widely used in cutting various tools, it is convenient to carry out manual sawing processing to workpiece, manual saw is generally composed of back rod, front cantilever, rear cantilever, back rod connects front cantilever and rear cantilever, and saw blade is installed between front cantilever and rear cantilever.

[0003] Chinese utility model patent, authorized publication number CN213053048U discloses a kind of steel saw, steel saw includes crossbar, connector, handle, pull rod, clasp one and clasp two etc. Component composition, the steel saw has simple structure, it is convenient and practical, greatly facilitate the installation of saw blade.

[0004] The above scheme solves the technical problems raised in the background art, but in actual application, the above steel saw still has certain defects, for example, due to the hardness, thickness or other physical factors of the material to be cut, in order to improve cutting efficiency and save manpower, different tooth shape or different pitch saw blade needs to be replaced, in the prior art, for cutting the material to be cut with different physical factors, generally, the corresponding saw blade needs to be replaced, this method not only increases the complexity of operation, but also may lead to the reduction of production efficiency. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of steel saw of combined changeable saw blade to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of steel saw of combined changeable saw blade, including saw handle, the bottom of the saw handle is formed with two vertical rods, two vertical rods bottom rod body is provided with rotating assembly, rotating assembly is installed with several saw blades, and the saw tooth of saw blade is towards the outside of rotating assembly;

[0007] The outside of rotating assembly is provided with limiting component, after rotating assembly conversion saw blade, rotating assembly is positioned by limiting component.

[0008] Preferably, the rotating assembly includes two connecting blocks, the connecting block is movably connected with the vertical rod through a connecting shaft, a plurality of connecting plates are fixed to the outside of the connecting block, and the saw blade is detachably installed between the corresponding two connecting plates.

[0009] Preferably, the connecting plate is arranged in a circumferential array on the outside of the connecting block.

[0010] Preferably, the connecting plate is provided as two blocks, and is symmetrically installed on the two sides of the connecting block.

[0011] Preferably, the limiting assembly comprises a rotating shaft penetrating through the vertical rod and movably connected with the vertical rod, and opposite screw rods are formed on the rod bodies on two sides of the rotating shaft, and the screw rods movably and screwingly connect with the matching movable plates;

[0012] The vertical rod and the connecting block are both provided with a plurality of insertion holes, and the inner side of the movable plate is fixed with a plurality of insertion rods which are matched with the insertion holes;

[0013] The distances between the end portions of the two insertion rods and the corresponding connecting blocks are equal.

[0014] Preferably, the rod body of the vertical rod is integrally formed with a reinforcing plate.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The combined changeable steel saw is provided with a connecting block, a rotating assembly and a limiting assembly, when the saw blade needs to be replaced, the rotating shaft is rotated, the two insertion rods are separated from the corresponding insertion holes, the connecting block is rotated by 180 degrees, the positions of the two saw blades are exchanged, then the rotating shaft is reversely rotated, the two movable plates are correspondingly moved until the two insertion rods can be simultaneously inserted into the corresponding insertion holes, the limiting of the connecting block is realized, and then the steel saw can combine the two saw blades together and can change the positions of the saw blades to adapt to different materials to be cut, the steel saw is simple in operation, the replacement time of different saw blades is saved, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a right side view of the utility model;

[0018] Figure 2 It is a left side view of the utility model;

[0019] Figure 3 It is Figure 2 It is an enlarged view of the middle A part.

[0020] In the figure: 1, saw handle; 101, vertical rod; 102, reinforcing plate; 2, connecting block; 201, insertion hole; 3, saw blade; 4, rotating shaft; 5, movable plate; 6, insertion rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] For example, Figures 1-3As shown, the utility model provides a technical scheme: a steel saw of combined changeable saw blade, including saw handle 1, wherein, saw handle 1 is the steel saw component of routine, it is made of stainless steel material, and the bottom of saw handle 1 forms two vertical rods 101, and the bottom rod body between two vertical rods 101 is provided with rotating assembly, and rotating assembly is installed with several saw blades 3, need to know, the sawtooth of installed saw blade 3 is towards the outside of rotating assembly.

[0023] As Figure 1 Shown, rotating assembly includes two connecting blocks 2, and connecting block 2 is movably connected with vertical rod 101 through connecting shaft, that is, connecting block 2 can rotate 360 degrees around the central axis of connecting shaft, a plurality of connecting plates are fixed on the outside of connecting block 2, and the saw blade 3 is detachably mounted between the corresponding two connecting plates, and it is known that the connection between the saw blade 3 and the connecting plate is a conventional installation method, which is a mature prior art, and will not be described in detail in this scheme.

[0024] In one embodiment of the present application, the connecting plates are arranged in a circumferential array on the outside of the connecting block 2. Specifically, the connecting plates are provided in four pieces, and correspondingly, the number of saw blades 3 is also four. The tooth shape or pitch of each saw blade 3 is different.

[0025] In another embodiment of the present application, the connecting plates are provided in two pieces, which are symmetrically mounted on the two sides of the connecting block 2. Correspondingly, the number of saw blades 3 is also two. The tooth shape or pitch of each saw blade 3 is different.

[0026] A limiting assembly is provided on the outside of the rotating assembly. After the saw blade 3 is converted by the rotating assembly, the rotating assembly is positioned by the limiting assembly.

[0027] As Figure 1 And Figure 3 Shown, the limiting assembly includes a rotating shaft 4 that extends through the vertical rod 101 and is movably connected with the vertical rod 101. The two side rod bodies of the rotating shaft 4 extending out of the vertical rod 101 are formed with screw rods having opposite screw directions. The screw rods movably screw with the matching movable plates 5. A plurality of insertion holes 201 are formed on the vertical rod 101 and the connecting block 2. A plurality of insertion rods 6 are fixed on the inside of the movable plates 5 and are matched with the insertion holes 201. In the present application, in order to improve the stability of the connecting block 2 after limiting, the number of insertion holes 201 is set to four, which are arranged in a circumferential array on the outside of the connecting block 2. It should also be noted that the distance between the end of the two insertion rods 6 and the corresponding connecting block 2 is equal. In this way, when the two movable plates 5 move correspondingly, the two insertion rods 6 can be inserted into the corresponding insertion holes 201 on the two sides at the same time.

[0028] In order to improve the strength of the vertical rod 101, the reinforcing plate 102 is integrally formed on the rod body of the vertical rod 101, and in order to reduce the overall weight of the steel saw, the reinforcing plate 102 is arranged only on both sides of the rotating shaft 4.

[0029] In addition to the scheme, when the saw blade 3 needs to be replaced, the rotating shaft 4 is rotated, the insertion rod 6 on both sides is separated from the insertion hole 201 on the corresponding side, the connecting block 2 is rotated by 180 degrees, the positions of the two saw blades 3 are replaced, then the rotating shaft 4 is reversely rotated, the movable plate 5 on both sides is correspondingly moved, until the insertion rod 6 on both sides can be inserted into the insertion hole 201 on the corresponding side at the same time, the position of the connecting block 2 is limited, and then the steel saw can be combined with the two saw blades 3, and the position of the saw blade 3 can be changed to adapt to different materials to be cut.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended embodiments and their equivalents.

Claims

1. A steel saw with a combination variable saw blade, comprising a handle (1), characterized in that: The bottom of the saw handle (1) is formed with two vertical rods (101), and a rotating assembly is arranged between the rod bodies of the two vertical rods (101) at the bottom, and a plurality of saw blades (3) are mounted on the rotating assembly, and the saw teeth of the saw blades (3) are directed to the outer side of the rotating assembly. A limiting assembly is arranged on the outer side of the rotating assembly, and after the saw blades (3) are converted through the rotating assembly, the rotating assembly is positioned through the limiting assembly.

2. A combination variable blade saw according to claim 1 wherein: The rotating assembly comprises two connecting blocks (2), the connecting blocks (2) are movably connected with the vertical rods (101) through connecting shafts, a plurality of connecting plates are fixed on the outer sides of the connecting blocks (2), and the saw blades (3) are detachably mounted between the corresponding two connecting plates.

3. A combination variable blade saw according to claim 2 wherein: The connecting plates are arranged in a circumferential array on the outer sides of the connecting blocks (2).

4. A combination variable blade saw according to claim 2 wherein: The connecting plates are arranged in two pieces and symmetrically mounted on the two sides of the connecting block (2).

5. A combination variable blade saw according to claim 1 wherein: The limiting assembly comprises a rotating shaft (4) penetrating through the vertical rod (101) and movably connected with the vertical rod (101), and the rod bodies on the two sides of the rotating shaft (4) are formed with screw rods with opposite screw directions, and the screw rods movably and screwingly connect the corresponding movable plates (5) therewith. A plurality of insertion holes (201) are formed on the vertical rod (101) and the connecting block (2), and a plurality of insertion rods (6) are fixed on the inner sides of the movable plates (5), and the insertion rods (6) are matched with the insertion holes (201). The distances between the end portions of the two insertion rods (6) and the corresponding connecting blocks (2) are equal.

6. A combination variable blade saw according to claim 1 wherein: The rod body of the vertical rod (101) is integrally formed with a reinforcing plate (102).

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