Multifunctional folding saw

Abstract

The utility model provides a multifunctional folding saw which comprises a saw blade and a handle connected to the saw blade, the handle comprises a first handle and a second handle capable of being folded with the first handle, the first handle and the second handle are both hinged to one end of the saw blade, a first saw blade embedding groove allowing one side of the saw blade to be embedded is formed in the first handle, and a second saw blade embedding groove allowing one side of the saw blade to be embedded is formed in the second handle. The second handle is provided with a second saw blade caulking groove allowing the other side of the saw blade to be embedded therein. When the folding saw is not used, the first handle and the second handle are both turned and folded, the two sides of the saw blade are embedded into the first saw blade embedding groove and the second saw blade embedding groove respectively, at the moment, the whole saw is in a folded state, saw teeth are shielded, effective safety protection is achieved, the size is reduced, and storage and carrying are convenient. In addition, only one handle is unfolded, the other handle and the saw blade are still in an embedded state, the single-face back clamping saw is used as a single-face back clamping saw, the saw back can be pressed to assist in stress application during use, the sawing efficiency is improved, and the range of applicable materials is expanded.

Description

Technical Field

[0001] The utility model relates to a manual tool, more specifically, to a multifunctional folding saw. Background Art

[0002] Double-sided saws and back-breaking saws are both saw tools, and there is a risk of saw blade damage or saw blade injury during transportation. In order to improve the market competitiveness and acceptance of products, relevant protective designs are needed to improve the safety of saw products during storage and transportation. The utility model patent with publication number CN216399922U discloses a folding saw, including a handle and a saw blade. A receiving cavity is arranged in the handle. The handle includes a first handle part and a second handle part. One end of the first handle part is rotatably connected to one end of the second handle part so that the first and second handle parts can be rotated to open the receiving cavity or rotated to be close to each other and close the receiving cavity. The saw blade is rotatably connected to the first handle part, and the saw blade can be rotated into the receiving cavity or rotated to the outside of the handle. The second handle part is provided with a limiting structure, and a first limiting part is arranged on the saw blade. When folding, the saw blade is rotated and received in the receiving cavity and the first and second handle parts are rotated to close the receiving cavity. The storage is convenient and the saw blade can be effectively covered to improve safety. When unfolding, the saw blade is rotated outside the handle and the first and second handle parts are rotated to be closed. The limiting structure on the second handle part can cooperate with the first limiting part to limit the rotation of the saw blade, thereby improving the stability of the saw when in use and facilitating the use of the saw. However, in the utility model, the first and second handle parts and the saw blade are independent of each other, and the handle parts and the saw blade cannot be combined to change the type of the saw to produce better applicability. Utility Model Content

[0003] The existing folding saws only focus on safety protection performance, but cannot change the type of saw and improve the applicability of the saw. To overcome this defect, the utility model provides a multifunctional folding saw, which can not only improve safety protection but also enable the handle and saw blade to be used in conjunction with each other, thereby improving the applicability of the saw.

[0004] The technical solution of the utility model is: a multifunctional folding saw, including a saw blade and a handle connected to the saw blade, including a first handle and a second handle that can be closed with the first handle, the first handle and the second handle are both hinged at one end of the saw blade, the first handle is provided with a first saw blade embedding groove for accommodating one side of the saw blade to be embedded, and the second handle is provided with a second saw blade embedding groove for accommodating the other side of the saw blade to be embedded. When the utility model is in use, the first handle and the second handle can be rotated in opposite directions relative to the saw blade to a fully open state, so that both sides of the saw blade are exposed and it is used as a double-sided saw; or only one handle can be unfolded, and the other handle and the saw blade are still kept in an embedded state, the saw teeth on one side of the saw blade are exposed, and the side not exposed is clamped by the handle, the overall rigidity and bending strength of the saw blade are improved, and the saw can be used as a single-sided back-clamping saw at this time. When in use, the saw back can be pressed to assist in force, thereby improving the sawing efficiency and being suitable for sawing tough materials; when the utility model is not in use, the first handle and the second handle are both flipped back and folded, and both sides of the saw blade are respectively embedded in the first saw blade embedding groove and the second saw blade embedding groove, and the saw is in a folded state as a whole at this time, which not only shields the saw teeth to achieve effective safety protection, but also reduces the volume for easy storage and carrying.

[0005] Preferably, a second handle embedding groove is provided on the first handle on a side opposite to the first saw blade embedding groove, into which the second handle can be embedded. The second handle can be embedded in the first handle, which is conducive to reducing the size of the handle when the saw is in use and making it easier to grip. At the same time, the first handle and the second handle are embedded, which is also conducive to better stability after the first handle and the second handle are closed.

[0006] Preferably, a second handle fixing groove is provided at the opposite end of the handle hinge end on the saw blade, a second handle fixing screw is provided at the free end of the second handle, and the second handle fixing screw is provided with a matching clamping nut, and the second handle fixing screw is clamped into the second handle fixing groove when the saw blade is embedded in the second saw blade embedding groove. After the saw blade is embedded in the second saw blade embedding groove, the clamping nut is tightened, and the second handle fixing screw and the clamping nut are pressed against the two sides of the second handle, and the pressure is transmitted to the groove walls on both sides of the second saw blade embedding groove and then the saw blade is pressed, so that the friction between the groove walls on both sides of the second saw blade embedding groove and the saw blade is greatly increased, thereby enhancing the bonding force between the saw blade and the second handle, enhancing the rigidity and bending strength of the saw blade when used as a clamping back saw, and better preventing the saw blade from separating from the second handle when the saw is folded as a whole, thereby improving the safety protection effect.

[0007] Preferably, a notch is provided at the opposite end of the hinged end of the handle on the saw blade near the saw tooth side, and a handle lock buckle is hinged at the free end of the first handle, which can clamp the saw blade protrusion between the notch and the saw tooth side when the saw blade is inserted into the first saw blade embedding groove. After the saw blade is inserted into the first saw blade embedding groove, the handle lock buckle is moved to clamp the saw blade protrusion between the notch and the saw tooth side, so that the saw blade and the first handle can generate a binding force after being folded, preventing them from easily separating from each other, thereby improving the safety protection effect.

[0008] Preferably, the hinged end of the handle on the saw blade is provided with an unfolded state locking groove, a saw blade locking piece is fixed in the first handle, and the saw blade locking piece is provided with a locking protrusion that can be inserted into the unfolded state locking groove when the saw blade and the first handle are fully unfolded. During the unfolding process of the saw blade and the first handle, the locking protrusion contacts the saw blade and slides on the surface of the saw blade, and the elastic deformation of the saw blade locking piece enables the locking protrusion to adjust the distance between the locking protrusion and the surface of the saw blade by itself, so that the locking protrusion can move relative to the saw blade until the locking protrusion overlaps with the unfolded state locking groove, and the saw blade locking piece elastically recovers, and the locking protrusion is embedded in the unfolded state locking groove to form a snap connection, thereby generating a retention force for the unfolded state between the saw blade and the first handle, which is conducive to safe and stable sawing operations.

[0009] Preferably, an expansion limit stopper bar is fixed in the first handle, which can abut against the edge of the hinged end of the saw blade when the saw blade and the first handle are fully expanded. When the saw blade and the first handle are fully expanded, the expansion limit stopper bar abuts against the edge of the hinged end of the saw blade to prevent the saw blade and the first handle from further expanding. During sawing operation, the torque generated by the force of the sawed material on the saw blade drives the saw blade to continue to expand relative to the first handle. Therefore, during the sawing operation, the saw blade can stably maintain the expanded state under the combined action of the expansion limit stopper bar and the sawed material.

[0010] Preferably, the first handle comprises two handle half shells, which are detachably connected. The first handle is composed of two handle half shells, and the first handle can be easily disassembled, and components such as a handle lock, a saw blade locking piece, and an expansion limit stopper are installed in the first handle.

[0011] Preferably, the handle half shell is an injection molded part, and a reinforcing rib is arranged inside the handle half shell. The first handle is made of plastic by injection molding, which is light, economical and easier to realize special shapes. The reinforcing rib can make up for the defect of insufficient strength of plastic.

[0012] Preferably, the second handle is a metal piece. The second handle plays the function of sawing the edge of the backpack in the clamp back saw mode. It is made of metal and can provide higher strength and durability in a thinner size.

[0013] Preferably, the first handle is provided with a handle cover, which can improve the hand feel and enhance the anti-organic solvent effect and anti-aging ability.

[0014] The beneficial effects of the utility model are:

[0015] Improve the safety protection effect of the saw. When the utility model is not in use, the first handle and the second handle are both turned back, and the two sides of the saw blade are respectively embedded in the first saw blade embedding groove and the second saw blade embedding groove. At this time, the saw is in a folded state as a whole, shielding the saw teeth to achieve effective safety protection.

[0016] Convenient for storage and carrying. When the utility model is not in use, the first handle and the second handle are turned back, and the two sides of the saw blade are respectively embedded in the first saw blade embedding groove and the second saw blade embedding groove. At this time, the saw is in a folded state as a whole, which reduces the volume and is convenient for storage and carrying.

[0017] Improve the applicability of the saw. The utility model can also unfold only one handle, while the other handle and the saw blade remain in a chiseled state, with the saw teeth on one side of the saw blade exposed, and the unexposed side is clamped by the handle, so that the overall rigidity and bending strength of the saw blade are improved. In this case, the saw can be used as a single-sided back-clamping saw, and the saw back can be pressed to assist in force during use, thereby improving sawing efficiency and being suitable for sawing tough materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the utility model when it is unfolded into a clamping back saw form;

[0020] Figure 3 This is a schematic diagram of the structure of the utility model in a fully folded state;

[0021] Figure 4 This is a schematic diagram of the structure of the utility model after removing half of the handle and half of the shell;

[0022] Figure 5 A schematic structural diagram of the utility model from another perspective after removing half of the handle and half of the shell;

[0023] Figure 6 This is a schematic diagram of the structure of the second handle in the utility model;

[0024] Figure 7 A schematic diagram of the disassembled structure of the saw blade and the handle half shell in the utility model.

[0025] In the figure, 1-saw blade, 101-second handle fixing groove, 102-notch, 103-saw blade protrusion, 104-unfolded state locking groove, 105-hanging hole, 2-handle, 201-first handle, 2011-first saw blade embedding groove, 2012-second handle embedding groove, 2013-handle lock, 20131-locking groove, 2014-saw blade locking piece, 20141-locking protrusion, 2015-unfolding limit stop bar, 2016-handle cover, 2017-handle half shell, 2018-reinforcement rib, 202-second handle, 2021-second saw blade embedding groove, 2022-second handle fixing screw, 2023-tightening nut, 2024-circlip. DETAILED DESCRIPTION

[0026] The present invention will be further described below with reference to the specific embodiments of the drawings.

[0027] Embodiment 1:

[0028] like Figures 1 to 7As shown, a multifunctional folding saw comprises a saw blade 1 and a handle 2, wherein the handle 2 is connected to the saw blade 1, and saw teeth are arranged on both sides of the saw blade 1. The handle 2 comprises a first handle 201 and a second handle 202, wherein the second handle 202 can be separated from and put together with the first handle 201. The first handle 201 is a split structure, which is composed of two handle half shells, and the two handle half shells 2017 are detachably connected by screws. The handle half shell 2017 is an injection molded part, and a reinforcing rib 2018 is arranged inside the handle half shell 2017. The first handle 201 is coated with a handle cover 2016, which is made of silicone and coated on the first handle 201 by a rubber-coated injection molding process. The second handle 202 is a metal part, which is formed by bending a thin steel plate. The first handle 201 and the second handle 202 are hinged to one end of the saw blade 1 through their respective rotating shafts, wherein the rotating shaft of the first handle 201 is biased toward one side of the saw blade 1, and the rotating shaft of the second handle 202 is biased toward the other side of the saw blade 1. The first handle 201 is provided with a first saw blade embedding groove 2011, and the first saw blade embedding groove 2011 can accommodate one side of the saw blade 1 to be embedded, and the second handle 202 is provided with a second saw blade embedding groove 2021, and the second saw blade embedding groove 2021 can accommodate the other side of the saw blade 1 to be embedded. The first handle 201 is provided with a second handle embedding groove 2012 on the side opposite to the first saw blade embedding groove 2011, and the second handle embedding groove 2012 can accommodate the second handle 202 to be embedded. A second handle fixing groove 101 is provided on the saw blade 1, and the second handle fixing groove 101 is opposite to the hinged end of the saw blade 1 and the handle 2. A second handle fixing screw 2022 is provided at the free end of the second handle 202, and the second handle fixing screw 2022 passes through the groove walls on both sides of the second saw blade embedding groove 2021. A clamping nut 2023 is provided on the second handle fixing screw 2022, and the clamping nut 2023 is matched and screwed with the second handle fixing screw 2022. The screw head and the clamping nut 2023 of the second handle fixing screw 2022 are respectively located on both sides of the second handle 202. A retaining ring 2024 is also provided at the end of the second handle fixing screw 2022. When the saw blade 1 is embedded in the second saw blade embedding groove 2021, the second handle fixing screw 2022 is clamped into the second handle fixing groove 101. A notch 102 is provided at the opposite end of the hinged end of the handle on the saw blade 1 near the saw tooth side, and a handle lock 2013 is hinged at the free end of the first handle 201. When the saw blade 1 is embedded in the first saw blade embedding groove 2011, the handle lock 2013 can clamp the saw blade protrusion 103 between the saw tooth side and the notch 102. The handle lock 2013 is provided with a lock groove 20131, and the lock groove 20131 can accommodate the saw blade protrusion 103. The hinged end of the handle on the saw blade 1 is provided with an unfolded state locking groove 104, and a saw blade locking piece 2014 is fixed in the first handle 201 by screws. The saw blade locking piece 2014 is made of a metal sheet and has a certain elasticity. The saw blade locking piece 2014 is provided with a locking protrusion 20141, and the locking protrusion 20141 can be clamped into the unfolded state locking groove 104 when the saw blade 1 and the first handle 201 are fully unfolded.The first handle 201 is fixed with an expansion limit stopper 2015, and when the saw blade 1 and the first handle 201 are fully expanded, the expansion limit stopper 2015 can abut against the edge of the hinged end of the saw blade 1. The saw blade 1 is also provided with a hanging hole 105, which is opposite to the hinged end of the saw blade 1 and the handle 2.

[0029] When the utility model is in use, the first handle 201 and the second handle 202 can be rotated in opposite directions relative to the saw blade to a fully open state, so that both sides of the saw blade are exposed and used as a double-sided saw, and the first handle 201 and the second handle 202 are also respectively rotated 180 degrees and then closed, and the second handle 202 is embedded in the second handle embedding groove 2012 of the first handle 201; or only the first handle 201 can be unfolded, and the second handle 202 and the saw blade 1 are still kept in an embedded state, the saw teeth on one side of the saw blade 1 are exposed, and the unexposed side is clamped by the second handle 202, the overall rigidity and bending strength of the saw blade 1 are improved, and the saw can be used as a single-sided clamping back saw. When in use, the first handle 201 can be held by one hand to pull the saw, and the second handle 202 can be pressed with the other hand to assist in adding force to the saw back, thereby improving the sawing efficiency, and it is suitable for sawing tough materials. The second handle 202 enhances the rigidity and bending strength of the saw blade when used as a clamping back saw, and better prevents the saw blade 1 from being separated from the second handle 202 when the saw 1 is folded as a whole, thereby improving the safety protection effect. During the unfolding process of the saw blade 1 and the first handle 201, the locking protrusion 20141 contacts the saw blade 1 and slides on the surface of the saw blade 1. The elastic deformation of the saw blade locking piece 2014 enables the locking protrusion 20141 to adjust the distance between the locking protrusion 20141 and the surface of the saw blade 1 by itself, so that the locking protrusion 20141 can move relative to 1 until the locking protrusion 20141 overlaps with the unfolded state locking groove 104. The saw blade locking piece 2014 elastically recovers, and the locking protrusion 20141 is embedded in the unfolded state locking groove 104 to form a clamping connection, thereby generating a retention force between the saw blade 1 and the first handle 201 in the unfolded state, which is conducive to safe and stable sawing operations. When the saw blade 1 and the first handle 201 are fully unfolded, the unfolding limit stopper 2015 abuts against the edge of the hinged end of the saw blade 1 to prevent the saw blade 1 from further unfolding with respect to the first handle 201. During sawing operation, the torque generated by the force of the sawed material acting on the saw blade 1 drives the saw blade 1 to continue to unfold relative to the first handle 201. Therefore, during the sawing operation, the saw blade 1 can stably maintain the unfolded state under the combined action of the unfolding limit stopper 2015 and the sawed material. When the utility model is not in use, the first handle 201 and the second handle 202 are both flipped back, and the two sides of the saw blade 1 are respectively embedded in the first saw blade embedding groove 2011 and the second saw blade embedding groove 2021. At this time, the saw is in a folded state as a whole, which not only shields the saw teeth to achieve effective safety protection, but also reduces the volume for easy storage and carrying.After the saw blade 1 is embedded in the second saw blade groove 2021, the clamping nut 2023 is tightened, and the second handle fixing screw 2022 and the clamping nut 2023 press the two sides of the second handle 202. The pressure is transmitted to the groove walls on both sides of the second saw blade groove 2021 and then presses the saw blade 1, so that the friction between the groove walls on both sides of the second saw blade groove 2021 and the saw blade 1 is greatly increased, thereby enhancing the binding force between the saw blade 1 and the second handle 202. After the saw blade 1 is embedded in the first saw blade groove 2011, the handle lock 2013 is turned to clamp the saw blade protrusion 103 between the notch 102 and the saw tooth side, so that the saw blade 1 and the first handle 201 can generate a binding force after folding, preventing them from easily detaching from each other, thereby improving the safety protection effect.

[0030] Embodiment 2:

[0031] A multifunctional folding saw comprises a saw blade 1 and a handle 2, wherein the handle 2 is connected to the saw blade 1, and saw teeth are arranged on both sides of the saw blade 1. The handle 2 comprises a first handle 201 and a second handle 202, wherein the second handle 202 can be separated from and put together with the first handle 201. The first handle 201 is a split structure, which is composed of two handle half shells, and the two handle half shells 2017 are detachably connected by screws. The handle half shell 2017 is an injection molded part, and a reinforcing rib 218 is arranged inside the handle half shell 2017. The first handle 201 is coated with a handle cover 2016, which is made of silicone and coated on the first handle 201 by a rubber-coated injection molding process. The second handle 202 is a metal part, which is formed by bending a thin steel plate. The first handle 201 and the second handle 202 are hinged to one end of the saw blade 1 through their respective rotating shafts, wherein the rotating shaft of the first handle 201 is biased toward one side of the saw blade 1, and the rotating shaft of the second handle 202 is biased toward the other side of the saw blade 1. The first handle 201 is provided with a first saw blade embedding groove 2011, and the first saw blade embedding groove 2011 can accommodate one side of the saw blade 1 to be embedded, and the second handle 202 is provided with a second saw blade embedding groove 2021, and the second saw blade embedding groove 2021 can accommodate the other side of the saw blade 1 to be embedded. The first handle 201 is provided with a second handle embedding groove 2012 on the side opposite to the first saw blade embedding groove 2011, and the second handle embedding groove 2012 can accommodate the second handle 202 to be embedded. A second handle fixing groove 101 is provided on the saw blade 1, and the second handle fixing groove 101 is opposite to the hinged end of the saw blade 1 and the handle 2. A second handle fixing screw 2022 is provided at the free end of the second handle 202, and the second handle fixing screw 2022 passes through the groove walls on both sides of the second saw blade embedding groove 2021. A clamping nut 2023 is provided on the second handle fixing screw 2022, and the clamping nut 2023 is matched and screwed with the second handle fixing screw 2022. The screw head and the clamping nut 2023 of the second handle fixing screw 2022 are respectively located on both sides of the second handle 202. A retaining ring 2024 is also provided at the end of the second handle fixing screw 2022. When the saw blade 1 is embedded in the second saw blade embedding groove 2021, the second handle fixing screw 2022 is clamped into the second handle fixing groove 101. A notch 102 is provided at the opposite end of the hinged end of the handle on the saw blade 1 near the saw tooth side, and a handle lock 2013 is hinged at the free end of the first handle 201. When the saw blade 1 is embedded in the first saw blade embedding groove 2011, the handle lock 2013 can clamp the saw blade protrusion 103 between the saw tooth side and the notch 102. The handle lock 2013 is provided with a lock groove 20131, and the lock groove 20131 can accommodate the saw blade protrusion 103. The hinged end of the handle on the saw blade 1 is provided with an unfolded state locking groove 104, and a saw blade locking piece 2014 is fixed in the first handle 201 by screws. The saw blade locking piece 2014 is made of a metal sheet and has a certain elasticity. The saw blade locking piece 2014 is provided with a locking protrusion 20141, and the locking protrusion 20141 can be clamped into the unfolded state locking groove 104 when the saw blade 1 and the first handle 201 are fully unfolded.An expansion limit stopper 2015 is fixed inside the first handle 201. When the saw blade 1 and the first handle 201 are fully expanded, the expansion limit stopper 2015 can abut against the edge of the hinged end of the saw blade 1. The saw blade 1 is also provided with a hanging hole 105, which is opposite to the hinged end of the saw blade 1 and the handle 2. The difference between this embodiment and the first embodiment is that the first handle 201 is not provided with a handle lock 2013, but an elastic pin is provided near the free end, and a pull ring is provided at the exposed end of the elastic pin. The elastic pin slides through a handle half shell, and a boss is provided in the middle front section of the part of the elastic pin located inside the first handle 201. A compression spring is sleeved on the elastic pin, and the two ends of the compression spring abut against the boss and the inner wall of the handle half shell, so that the elastic pin is retracted into the first handle 201 under normal conditions. The elastic pin is used to cooperate with the hanging hole 105. The rest is the same as the first embodiment.

[0032] When the utility model is in use, the first handle 201 and the second handle 202 can be rotated in opposite directions relative to the saw blade to a fully open state, so that both sides of the saw blade are exposed and used as a double-sided saw, and the first handle 201 and the second handle 202 are also respectively rotated 180 degrees and then closed, and the second handle 202 is embedded in the second handle embedding groove 2012 of the first handle 201; or only the first handle 201 can be unfolded, and the second handle 202 and the saw blade 1 are still kept in an embedded state, the saw teeth on one side of the saw blade 1 are exposed, and the unexposed side is clamped by the second handle 202, the overall rigidity and bending strength of the saw blade 1 are improved, and the saw can be used as a single-sided clamping back saw. When in use, the first handle 201 can be held by one hand to pull the saw, and the second handle 202 can be pressed with the other hand to assist in adding force to the saw back, thereby improving the sawing efficiency, and it is suitable for sawing tough materials. The second handle 202 enhances the rigidity and bending strength of the saw blade when used as a clamping back saw, and better prevents the saw blade 1 from being separated from the second handle 202 when the saw 1 is folded as a whole, thereby improving the safety protection effect. During the unfolding process of the saw blade 1 and the first handle 201, the locking protrusion 20141 contacts the saw blade 1 and slides on the surface of the saw blade 1. The elastic deformation of the saw blade locking piece 2014 enables the locking protrusion 20141 to adjust the distance between the locking protrusion 20141 and the surface of the saw blade 1 by itself, so that the locking protrusion 20141 can move relative to 1 until the locking protrusion 20141 overlaps with the unfolded state locking groove 104. The saw blade locking piece 2014 elastically recovers, and the locking protrusion 20141 is embedded in the unfolded state locking groove 104 to form a clamping connection, thereby generating a retention force between the saw blade 1 and the first handle 201 in the unfolded state, which is conducive to safe and stable sawing operations. When the saw blade 1 and the first handle 201 are fully unfolded, the unfolding limit stopper 2015 abuts against the edge of the hinged end of the saw blade 1 to prevent the saw blade 1 from further unfolding with respect to the first handle 201. During sawing operation, the torque generated by the force of the sawed material acting on the saw blade 1 drives the saw blade 1 to continue to unfold relative to the first handle 201. Therefore, during the sawing operation, the saw blade 1 can stably maintain the unfolded state under the combined action of the unfolding limit stopper 2015 and the sawed material. When the utility model is not in use, the first handle 201 and the second handle 202 are both flipped back, and the two sides of the saw blade 1 are respectively embedded in the first saw blade embedding groove 2011 and the second saw blade embedding groove 2021. At this time, the saw is in a folded state as a whole, which not only shields the saw teeth to achieve effective safety protection, but also reduces the volume for easy storage and carrying. After the saw blade 1 is embedded in the second saw blade groove 2021, the clamping nut 2023 is tightened, and the second handle fixing screw 2022 and the clamping nut 2023 press the two sides of the second handle 202. The pressure is transmitted to the groove walls on both sides of the second saw blade groove 2021 and then presses the saw blade 1, so that the friction between the groove walls on both sides of the second saw blade groove 2021 and the saw blade 1 is greatly increased, thereby enhancing the binding force between the saw blade 1 and the second handle 202.Before the saw blade 1 is inserted into the first saw blade embedding groove 2011, or before it is removed from the first saw blade embedding groove 2011, the pull ring must be pulled outwards first, so that the elastic pin overcomes the elastic force of the compression spring and moves outwards, allowing the saw blade 1 to enter and exit the first saw blade embedding groove 2011. When the saw blade 1 is folded between the first handle 201, after the saw blade 1 is inserted into the first saw blade embedding groove 2011, the hanging hole 105 overlaps with the elastic pin. At this time, the pull ring is released, the elastic pin is reset, and inserted into the hanging hole 105 to lock the saw blade 1, so that the saw blade 1 and the first handle 201 can generate a binding force after being folded, preventing them from easily separating from each other, thereby improving the safety protection effect; when the saw blade 1 and the first handle 201 are unfolded, the front end of the elastic pin moves out of the hanging hole 105 to release the lock on the saw blade 1.

Claims

1. A multifunctional folding saw, comprising a saw blade (1) and a handle (2) connected to the saw blade (1), characterized in that: The handle (2) comprises a first handle (201) and a second handle (202) that can be placed together with the first handle (201), the first handle (201) and the second handle (202) are both hinged to one end of a saw blade (1), the first handle (201) is provided with a first saw blade embedding groove (2011) that can accommodate one side of the saw blade (1) to be embedded, and the second handle (202) is provided with a second saw blade embedding groove (2021) that can accommodate the other side of the saw blade (1) to be embedded.

2. The multifunctional folding saw according to claim 1, characterized in that: A second handle embedding groove (2012) capable of accommodating the embedding of the second handle (202) is provided on a side of the first handle (201) opposite to the first saw blade embedding groove (2011).

3. The multifunctional folding saw according to claim 1, characterized in that: A second handle fixing groove (101) is provided at the end opposite to the hinged end of the handle on the saw blade (1); a second handle fixing screw (2022) penetrating through the groove walls on both sides of the second saw blade embedding groove (2021) is provided at the free end of the second handle (202); a matching clamping nut (2023) is provided on the second handle fixing screw (2022); when the saw blade (1) is embedded in the second saw blade embedding groove (2021), the second handle fixing screw (2022) is inserted into the second handle fixing groove (101).

4. The multifunctional folding saw according to claim 1, characterized in that: A notch (102) is provided at the end of the handle hinged end on the saw blade (1) near the saw tooth side, and a handle lock (2013) is hingedly connected to the free end of the first handle (201) for clamping a saw blade protrusion (103) between the notch (102) and the saw tooth side when the saw blade (1) is embedded in the first saw blade embedding groove (2011).

5. The multifunctional folding saw according to claim 1, characterized in that: The hinged end of the handle on the saw blade (1) is provided with an unfolded state locking groove (104), a saw blade locking piece (2014) is fixed in the first handle (201), and the saw blade locking piece (2014) is provided with a locking protrusion (20141) that can be inserted into the unfolded state locking groove (104) when the saw blade (1) and the first handle (201) are fully unfolded.

6. The multifunctional folding saw according to claim 1, wherein the first An expansion limit stopper bar (2015) is fixed in the handle (201) and can abut against the edge of the hinged end of the saw blade (1) when the saw blade (1) and the first handle (201) are fully expanded. The first handle (201) comprises two handle half shells, which are detachably connected.

7. The multifunctional folding saw according to claim 1, characterized in that: A hanging hole (105) is also provided on the saw blade (1) at the end opposite to the hinged end of the handle.

8. The multifunctional folding saw according to claim 6, characterized in that: The handle half shell is an injection molded part, and a reinforcing rib is arranged inside the handle half shell.

9. The multifunctional folding saw according to claim 1, characterized in that: The second handle (202) is a metal piece.

10. The multifunctional folding saw according to any one of claims 1 to 9, characterized in that: A handle sleeve (2016) is provided on the first handle (201).

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