A special woodworking hand saw for RV decoration

Abstract

This invention relates to the field of RV decoration technology, specifically a woodworking hand saw for RV decoration, comprising: a handle, a connecting beam mounted on the handle, a fixed frame hinged to the other end of the connecting beam, and an adjustment component above the connecting beam, the adjustment component including an adjustment screw; a limiting component, including fixed seats mounted on the fixed frame and the handle, with two sets of fixed seats respectively located at both ends of the saw blade; and a protective component, including multiple sets of connected protective plates. The beneficial effects are: through the cooperation of the connecting rod and multiple sets of slidingly arranged protective plates, the saw blade is protected, preventing accidental scratches or cuts to the operator or other objects. Furthermore, the multiple sets of protective plates are slidably connected and can retract and be stored inside the connecting rod when not in use, while the connecting rod can be stored inside the handle, eliminating concerns about the loss of protective plates and saving space.

Description

Technical Field

[0001] This invention relates to the field of RV decoration technology, specifically a woodworking hand saw for RV decoration. Background Technology

[0002] A handsaw is a manual cutting tool, usually unpowered and designed for one-handed use. It mainly consists of a frame and a saw blade. It is primarily used for cutting wood, but is also suitable for outdoor camping, fruit tree pruning, and other scenarios. During use, the operator cuts materials such as wood, plastic, or metal by pushing and pulling the saw blade.

[0003] In the existing technology, the saw blade is usually fixed to the frame by the cooperation of the screw and the special nut. However, the saw blade of the hand saw has extremely high hardness and sharp teeth. When the tool is idle, transported or stored, the exposed saw blade is very likely to cause accidental scratches or cuts to the operator or other objects.

[0004] To address this issue, some existing hand saws are equipped with separate hard sheaths, such as plastic or metal sheaths. However, these sheaths are usually designed to be detachable, making them easy to lose. They also need to be completely removed and stored separately during use, which is cumbersome and affects work efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a woodworking hand saw specifically for RV decoration, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A special woodworking hand saw for RV decoration includes:

[0008] The handle has a connecting beam mounted on it, and a fixing frame is hinged to the end of the connecting beam away from the handle. A saw blade is provided between the fixing frame and the lower end of the handle. Meanwhile, an adjustment component is provided above the connecting beam for adjusting the tension of the saw blade. The adjustment component includes an adjustment screw, and the two ends of the adjustment screw are respectively connected to the fixing frame and the handle.

[0009] A limiting assembly is used to limit the saw blade on the fixed frame and the handle. The limiting assembly includes a fixing seat installed on the fixed frame and the handle, and two sets of fixing seats are respectively disposed at both ends of the saw blade.

[0010] A protective assembly, fitted over the outside of the handle, protects the saw blade when not in use. The protective assembly includes multiple connected protective plates.

[0011] Furthermore, the fixing frame is hinged to the handle through the cooperation of the connecting beam;

[0012] The upper ends of the fixing frame and the handle are respectively connected to a first connecting seat and a second connecting seat. One end of the adjusting screw passes through the second connecting seat and is hinged to the first connecting seat, and the other end of the adjusting screw is screwed with a fastening nut.

[0013] Furthermore, a limiting post is provided on one side of the fixed base, and the end of the saw blade is sleeved on the limiting post. The saw blade is installed between the fixed frame and the handle through the cooperation of the fixed base and the limiting post.

[0014] Furthermore, the fixing seat is provided with a first groove at the position corresponding to the limiting post, a squeezing block is slidably arranged inside the first groove, and a first air storage bag is provided between the first groove and the squeezing block.

[0015] The outer wall of the limiting post is provided with a first storage groove at the position corresponding to the side wall of the saw blade. A limiting block is provided inside the first storage groove, and a first reset spring is provided between the limiting block and the first storage groove.

[0016] Furthermore, a second air-storing airbag is provided between the limiting block and the first storage slot, and a first exhaust pipe is provided between the first air-storing airbag and the second air-storing airbag. The second air-storing airbag is connected to the first air-storing airbag through the first exhaust pipe.

[0017] An air storage chamber is provided inside the limiting post at a position corresponding to the first exhaust pipe. A sealing plate is slidably arranged inside the air storage chamber, and a second return spring is provided between the sealing plate and the inner wall of the air storage chamber.

[0018] A second exhaust pipe is provided between the air storage chamber and the first exhaust pipe. The air storage chamber is connected to the first air storage bladder and the second air storage bladder through the second exhaust pipe and the first exhaust pipe. The elastic force of the second return spring is greater than that of the first return spring.

[0019] Furthermore, a second recess is provided at the lower end of the handle, a connecting rod is slidably disposed inside the second recess, and a second storage groove is provided at the end of the connecting rod to accommodate the protective component;

[0020] The handle has a fixing component inside for fixing the connecting rod.

[0021] Furthermore, the fixing component includes a slot formed in the side wall of the connecting rod;

[0022] The inner wall of the second sink is provided with a third storage groove at the position corresponding to the slot. The third storage groove is provided with a locking block inside, and a fourth reset spring is provided between the locking block and the third storage groove.

[0023] Furthermore, a guide groove is provided on the outer wall of the handle, a guide block is slidably disposed inside the guide groove, and a third return spring is provided between the guide block and the guide groove;

[0024] A through hole is provided between the guide groove and the third storage groove. A pull rope is provided inside the through hole, and the two ends of the pull rope are respectively connected to the end of the card block and the side wall of the guide block.

[0025] Furthermore, the inner wall of the second storage slot is provided with a sliding groove, and the outer wall of the protective plate at the far end of the protective component is provided with a slider, which is slidably disposed inside the sliding groove;

[0026] The sidewall of the connecting rod is screwed with limit bolts at both ends of the slide groove, and the slider is provided with threaded holes at the positions of the limit bolts.

[0027] Furthermore, the protective plate has a U-shaped cross-section, and adjacent sets of protective plates can be slidably connected by a slider;

[0028] The front protective plate can slide into the interior of the rear protective plate, and each of the protective plates is provided with a buckle assembly to restrict the sliding connection of another set of protective plates;

[0029] The buckle assembly includes an L-shaped buckle installed at the end of the protective plate near another set of protective plates, and a hinge rod is provided on the side wall of the protective plate at the position corresponding to the L-shaped buckle. The hinge rod is hinged to the L-shaped buckle, and a fifth return spring is provided between the side wall of the protective plate and the corresponding L-shaped buckle.

[0030] The protective plate has buckle slots at both ends corresponding to the end positions of the L-shaped buckles. The L-shaped buckles are inserted into one set of buckle slots through the cooperation of the fifth reset spring.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. This invention protects the saw blade by using a connecting rod and multiple sets of sliding protective plates to prevent the saw blade from accidentally scratching or cutting the operator or other objects. The multiple sets of protective plates are slidably connected and can be retracted and stored inside the connecting rod when not in use. The connecting rod can be stored inside the handle, so there is no need to worry about the loss of the protective plates and it does not take up space.

[0033] 2. When installing the saw blade, the saw blade presses against the compression block. The gas inside the first air storage bladder on one side of the compression block is discharged into the second air storage bladder through the first exhaust pipe. The second air storage bladder expands, limiting and fixing the saw blade to prevent it from detaching from the fixed seat and ensuring the straightness of the saw blade to the greatest extent. At the same time, when the saw blade breaks, it will not fall off the fixed seat and fly away, affecting the safety of the surrounding area.

[0034] 3. The fixed frame is hinged to the handle via a connecting beam. When installing the saw blade, the tension of the saw blade can be adjusted by tightening the fastening nut.

[0035] 4. When it is not necessary to protect the saw blade, multiple sets of protective plates can be stored together. Then, the protective plates can be rotated to a suitable angle relative to the connecting rod. When cutting with the saw blade, the stored protective plates can block some of the debris brought out by the saw blade. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0037] Figure 2 This is a schematic diagram of the protective component storage of the present invention;

[0038] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0039] Figure 4 This is a cross-sectional schematic diagram of the connection between the fixing seat and the limiting column structure of the present invention;

[0040] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B;

[0041] Figure 6 This is a schematic cross-sectional view of the handle structure of the present invention;

[0042] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point C;

[0043] Figure 8 This is a schematic diagram showing the connection between the two sets of protective plates of the present invention;

[0044] Figure 9 This is a cross-sectional schematic diagram of the connection between the two sets of protective plate structures of the present invention.

[0045] In the diagram: 1. Connecting beam; 2. Fixing frame; 3. First connecting seat; 4. Adjusting screw; 5. Second connecting seat; 6. Fastening nut; 7. Handle; 8. Fixing seat; 9. Saw blade; 10. Protective plate; 11. Connecting rod; 12. Limiting post; 13. Limiting block; 14. First sink groove; 15. Extrusion block; 16. First air storage bag; 17. First exhaust pipe; 18. First storage groove; 19. Second air storage bag; 20. First return spring; 21. Second exhaust pipe; 22. Air storage chamber; 23. Second return spring; 24. Sealing plate; 25. Second sink groove; 26. Second storage groove; 27. Slide groove; 28. Slot; 29. ​​Guide groove; 30. Guide block; 31. Third return spring; 32. Through hole; 33. Pull rope; 34. Third storage groove; 35. Slot; 36. Fourth return spring; 37. Sliding block; 38. Limiting bolt; 39. L-shaped buckle; 40. Buckle groove; 41. Hinge rod; 42. Fifth return spring. Detailed Implementation

[0046] To more clearly illustrate the overall concept of the present invention, a detailed description will be provided below with reference to the accompanying drawings and examples.

[0047] Example 1:

[0048] Please see Figures 1 to 9 This invention provides a technical solution: a woodworking hand saw specifically for RV decoration, comprising:

[0049] A handle 7 is provided, on which a connecting beam 1 is installed, and a fixing frame 2 is hinged to the end of the connecting beam 1 away from the handle 7. A saw blade 9 is provided between the fixing frame 2 and the lower end of the handle 7. Meanwhile, an adjustment component is provided above the connecting beam 1 for adjusting the tension of the saw blade 9. The adjustment component includes an adjustment screw 4, and the two ends of the adjustment screw 4 are respectively connected to the fixing frame 2 and the handle 7.

[0050] A limiting component is used to restrict the saw blade 9 on the fixed frame 2 and the handle 7. The limiting component includes a fixing seat 8 installed on the fixed frame 2 and the handle 7, and two sets of fixing seats 8 are respectively disposed at both ends of the saw blade 9.

[0051] A protective assembly is fitted over the outside of the handle 7 to protect the saw blade 9 when not in use. The protective assembly includes multiple sets of connected protective plates 10.

[0052] In the above technical solution: the hinge between the fixed frame 2 and the handle 7 is achieved by the connecting beam 1. At the same time, the saw blade 9 is installed by the fixed frame 2 and the handle 7. During installation, the limiting component can limit and fix the handle 7.

[0053] The tension of the handle 7 can be adjusted by adjusting the distance between the lower end of the fixing frame 2 and the lower end of the handle 7 through adjusting the adjusting screw 4 on the component;

[0054] When not in use, the protective component can protect the saw blade 9 from damage to people or objects.

[0055] Example 2:

[0056] like Figure 1 As shown, the RV decoration-specific woodworking hand saw disclosed in Embodiment 2 of the present invention has a structure that is basically the same as that in Embodiment 1, except that:

[0057] The fixing frame 2 is hinged to the handle 7 through the cooperation of the connecting beam 1;

[0058] The upper ends of the fixing frame 2 and the handle 7 are respectively connected to the first connecting seat 3 and the second connecting seat 5. One end of the adjusting screw 4 passes through the second connecting seat 5 and is hinged to the first connecting seat 3, and the other end of the adjusting screw 4 is screwed with a fastening nut 6.

[0059] In the above technical solution: the distance between the second connecting seat 5 and the first connecting seat 3 is adjusted by tightening the fastening nut 6, thereby adjusting the distance between the lower end of the fixing frame 2 and the lower end of the handle 7, and thus adjusting the tension of the handle 7.

[0060] Example 3:

[0061] like Figures 2-5 As shown, the RV decoration-specific woodworking hand saw disclosed in Embodiment 3 of the present invention has a structure that is basically the same as that in Embodiment 2, except that:

[0062] A limiting post 12 is provided on one side of the fixed base 8, and the end of the saw blade 9 is sleeved on the limiting post 12. The saw blade 9 is installed between the fixed frame 2 and the handle 7 through the cooperation of the fixed base 8 and the limiting post 12.

[0063] The fixed base 8 is provided with a first sink 14 at the position corresponding to the limiting post 12. A squeezing block 15 is slidably arranged inside the first sink 14, and a first air storage bag 16 is arranged between the first sink 14 and the squeezing block 15.

[0064] The outer wall of the limiting post 12 is provided with a first storage groove 18 at the position corresponding to the side wall of the saw blade 9. The first storage groove 18 is provided with a limiting block 13 inside, and a first reset spring 20 is provided between the limiting block 13 and the first storage groove 18.

[0065] A second air-storing airbag 19 is provided between the limiting block 13 and the first storage groove 18. A first exhaust pipe 17 is provided between the first air-storing airbag 16 and the second air-storing airbag 19. The second air-storing airbag 19 is connected to the first air-storing airbag 16 through the first exhaust pipe 17.

[0066] The limiting post 12 has an air storage chamber 22 at a position corresponding to the first exhaust pipe 17. A sealing plate 24 is slidably arranged inside the air storage chamber 22, and a second return spring 23 is arranged between the sealing plate 24 and the inner wall of the air storage chamber 22.

[0067] A second exhaust pipe 21 is provided between the air storage chamber 22 and the first exhaust pipe 17. The air storage chamber 22 is connected to the first air storage bag 16 and the second air storage bag 19 through the second exhaust pipe 21 and the first exhaust pipe 17. The elastic force of the second return spring 23 is greater than the elastic force of the first return spring 20.

[0068] In the above technical solution: when installing the saw blade 9, the saw blade 9 squeezes the compression block 15. The gas inside the first air storage bladder 16 on one side of the compression block 15 is discharged into the second air storage bladder 19 through the first exhaust pipe 17. The second air storage bladder 19 expands to limit and fix the saw blade 9, preventing the saw blade 9 from falling off the fixed seat 8 and ensuring the straightness of the saw blade 9 to the greatest extent. At the same time, when the saw blade 9 breaks, the saw blade 9 will not fall off the fixed seat 8 and fly away, affecting the safety of the surrounding area.

[0069] Example 4:

[0070] like Figures 2-5 As shown, the RV decoration-specific woodworking hand saw disclosed in Embodiment 4 of the present invention has a structure that is basically the same as that in Embodiment 3, except that:

[0071] The lower end of the handle 7 is provided with a second recess 25, and a connecting rod 11 is slidably disposed inside the second recess 25. The end of the connecting rod 11 is provided with a second storage groove 26 that can accommodate the protective component.

[0072] The handle 7 has a fixing component inside for fixing the connecting rod 11;

[0073] The fixing component includes a slot 28 formed on the side wall of the connecting rod 11;

[0074] The inner wall of the second sink 25 is provided with a third storage groove 34 at the position corresponding to the slot 28. The third storage groove 34 is provided with a locking block 35, and a fourth return spring 36 is provided between the locking block 35 and the third storage groove 34.

[0075] The outer wall of the handle 7 is provided with a guide groove 29, a guide block 30 is slidably disposed inside the guide groove 29, and a third return spring 31 is disposed between the guide block 30 and the guide groove 29.

[0076] A through hole 32 is provided between the guide groove 29 and the third storage groove 34. A pull rope 33 is provided inside the through hole 32. The two ends of the pull rope 33 are respectively connected to the end of the locking block 35 and the side wall of the guide block 30.

[0077] In the above technical solution: the protective component is housed inside the connecting rod 11. During storage, the protective component can be fixed using the limiting bolt 38. Then, the connecting rod 11 is stored inside the handle 7. When storing the connecting rod 11, the elastically set locking block 35 and the locking groove 28 cooperate to limit and fix the connecting rod 11. When it needs to be removed, the guide block 30 is moved to one side. The guide block 30, through the cooperation of the pull rope 33, drives the locking block 35 to move out of the locking groove 28.

[0078] Example 5:

[0079] like Figures 6-9 As shown, the RV decoration-specific woodworking hand saw disclosed in Embodiment 5 of the present invention has a structure that is basically the same as that in Embodiment 4, except that:

[0080] The inner wall of the second storage groove 26 is provided with a sliding groove 27, and the outer wall of the protective plate 10 at the far end of the protective component is provided with a slider 37, which is slidably disposed inside the sliding groove 27.

[0081] The sidewall of the connecting rod 11 is screwed with limit bolts 38 at both ends of the slide groove 27, and the slider 37 is provided with threaded holes at the positions of the limit bolts 38.

[0082] The protective plate 10 has a U-shaped cross-section, and two adjacent sets of protective plates 10 can be slidably connected by a slider.

[0083] The front protective plate 10 can slide into the interior of the rear protective plate 10, and each of the protective plates 10 is provided with a buckle assembly to restrict the sliding connection of another set of protective plates 10;

[0084] The buckle assembly includes an L-shaped buckle 39 installed at the end of the protective plate 10 near another set of protective plates 10, and a hinge rod 41 is provided on the side wall of the protective plate 10 at the position corresponding to the L-shaped buckle 39. The hinge rod 41 is hinged to the L-shaped buckle 39, and a fifth return spring 42 is provided between the side wall of the protective plate 10 and the corresponding L-shaped buckle 39.

[0085] The protective plate 10 has buckle grooves 40 at both ends corresponding to the end positions of the L-shaped buckle 39. The L-shaped buckle 39 is inserted into one of the buckle grooves 40 through the cooperation of the fifth return spring 42.

[0086] In the above technical solution: the saw blade 9 is protected by the cooperation of the connecting rod 11 and multiple sets of sliding protective plates 10, preventing the saw blade 9 from causing accidental scratches or cuts to the operator or other objects. The multiple sets of protective plates 10 are slidably connected and can be retracted and stored inside the connecting rod 11 when not in use. The connecting rod 11 can be stored inside the handle 7, so there is no need to worry about the loss of the protective plates 10 and it does not take up space.

[0087] When the saw blade 9 does not need to be protected, multiple sets of protective plates 10 can be stored together, and then the protective plates 10 can be rotated to a suitable angle relative to the connecting rod 11. When cutting through the saw blade 9, the stored protective plates 10 can block some of the debris brought out by the saw blade 9 during cutting.

[0088] This invention is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A woodworking hand saw specifically for RV decoration, characterized in that, include: A handle (7) is provided with a connecting beam (1) and a fixed frame (2) is hinged to one end of the connecting beam (1) away from the handle (7). A saw blade (9) is provided between the fixed frame (2) and the lower end of the handle (7). Meanwhile, an adjustment component is provided above the connecting beam (1) for adjusting the tension of the saw blade (9). The adjustment component includes an adjustment screw (4), and the two ends of the adjustment screw (4) are respectively connected to the fixed frame (2) and the handle (7). A limiting assembly is used to limit the saw blade (9) on the fixed frame (2) and the handle (7). The limiting assembly includes a fixing seat (8) installed on the fixed frame (2) and the handle (7). Two sets of fixing seats (8) are respectively disposed at both ends of the saw blade (9). A protective assembly is fitted over the outside of the handle (7) to protect the saw blade (9) when not in use. The protective assembly includes multiple sets of connected protective plates (10). The lower end of the handle (7) is provided with a second recess (25), and a connecting rod (11) is slidably disposed inside the second recess (25). The end of the connecting rod (11) is provided with a second storage groove (26) that can accommodate the protective component. The handle (7) has a fixing component inside for fixing the connecting rod (11). The inner wall of the second storage groove (26) is provided with a sliding groove (27), and the outer wall of the end protective plate (10) is provided with a slider (37), which is slidably disposed inside the sliding groove (27); The sidewall of the connecting rod (11) is screwed with limit bolts (38) at both ends of the slide groove (27), and the slider (37) is provided with threaded holes at the positions corresponding to the limit bolts (38). A limiting post (12) is provided on one side of the fixed seat (8), and the end of the saw blade (9) is sleeved on the limiting post (12). The saw blade (9) is installed between the fixed frame (2) and the handle (7) through the cooperation of the fixed seat (8) and the limiting post (12). The fixed base (8) is provided with a first sink groove (14) at the position corresponding to the limiting post (12). A squeezing block (15) is slidably arranged inside the first sink groove (14), and a first air storage bag (16) is arranged between the first sink groove (14) and the squeezing block (15). The outer wall of the limiting post (12) is provided with a first storage groove (18) at the position corresponding to the side wall of the saw blade (9). The first storage groove (18) is provided with a limiting block (13), and a first reset spring (20) is provided between the limiting block (13) and the first storage groove (18). A second air-storing airbag (19) is provided between the limiting block (13) and the first storage groove (18). A first exhaust pipe (17) is provided between the first air-storing airbag (16) and the second air-storing airbag (19). The second air-storing airbag (19) is connected to the first air-storing airbag (16) through the first exhaust pipe (17). The limiting post (12) has an air storage chamber (22) at a position corresponding to the first exhaust pipe (17). A sealing plate (24) is slidably arranged inside the air storage chamber (22), and a second return spring (23) is arranged between the sealing plate (24) and the inner wall of the air storage chamber (22). A second exhaust pipe (21) is provided between the air storage chamber (22) and the first exhaust pipe (17). The air storage chamber (22) is connected to the first air storage bag (16) and the second air storage bag (19) through the second exhaust pipe (21) and the first exhaust pipe (17). The elastic force of the second return spring (23) is greater than that of the first return spring (20).

2. The RV decoration-specific woodworking hand saw according to claim 1, characterized in that, The fixing frame (2) is hinged to the handle (7) through the cooperation of the connecting beam (1); The upper ends of the fixing frame (2) and the handle (7) are respectively connected to the first connecting seat (3) and the second connecting seat (5). One end of the adjusting screw (4) passes through the second connecting seat (5) and is hinged to the first connecting seat (3). The other end of the adjusting screw (4) is screwed with a fastening nut (6).

3. The RV decoration-specific woodworking hand saw according to claim 1, characterized in that, The fixing component includes a slot (28) formed on the side wall of the connecting rod (11); The inner wall of the second sink (25) is provided with a third storage groove (34) at the position corresponding to the slot (28). The third storage groove (34) is provided with a locking block (35), and a fourth reset spring (36) is provided between the locking block (35) and the third storage groove (34).

4. The RV decoration-specific woodworking hand saw according to claim 3, characterized in that, The outer wall of the handle (7) is provided with a guide groove (29), a guide block (30) is slidably arranged inside the guide groove (29), and a third return spring (31) is provided between the guide block (30) and the guide groove (29). A through hole (32) is provided between the guide groove (29) and the third storage groove (34). A pull rope (33) is provided inside the through hole (32). The two ends of the pull rope (33) are respectively connected to the end of the card block (35) and the side wall of the guide block (30).

5. The RV decoration-specific woodworking hand saw according to claim 3, characterized in that, The protective plate (10) has a U-shaped cross section, and two adjacent sets of protective plates (10) can be slidably connected by a slider; The front protective plate (10) can slide into the interior of the rear protective plate (10), and each of the protective plates (10) is provided with a buckle assembly to restrict the sliding connection of another set of protective plates (10). The buckle assembly includes an L-shaped buckle (39) installed at the end of the protective plate (10) near another set of the protective plates (10), and a hinge rod (41) is provided on the side wall of the protective plate (10) at the position corresponding to the L-shaped buckle (39). The hinge rod (41) is hinged to the L-shaped buckle (39), and a fifth return spring (42) is provided between the side wall of the protective plate (10) and the corresponding L-shaped buckle (39). The protective plate (10) has buckle slots (40) at both ends corresponding to the end positions of the L-shaped buckle (39). The L-shaped buckle (39) is inserted into the interior of one set of buckle slots (40) through the cooperation of the fifth reset spring (42).

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