Base structure of multifunctional saw band extension function frame

Abstract

The utility model discloses a multifunctional sawing belt extension function frame's base structure, including the base that is used for installing saw main part and the workpiece of supporting to saw main part cutting, one side of base is provided with the extension function frame for supporting with base, and the extension function frame is by one section or more section support pole constitutes, and the last end of one section support pole and the first end of next section support pole rotatoryly connect in proper order, and one section or more section support pole rotatoryly connects on the base in one end, and the support pole can change the width that the extension function frame is used for supporting through rotatory to one side, and this patent can rotatory support pole to one side according to the shape of the workpiece to be cut, to adjust the left and right positions of extension function frame on the base one side, also can rotatory support pole according to the length of the workpiece to be cut, adjust the width of extension function frame, and the adaptability is stronger, and in addition also can through rotatory support pole and fold extension function spare, reduce the volume.

Description

Technical Field

[0001] This utility model relates to a multi-functional saw, and more particularly to a base structure for a multi-functional saw band extension frame. Background Technology

[0002] A cutting saw is a power tool used to cut metal blocks from objects such as angle iron and pipes, and is commonly used on construction sites. A cutting saw typically consists of a base, an arm rotatably fixed to the base, and a cutting blade driven by a motor. During operation, the cutting blade rotates from a first position where it is not in contact with the workpiece placed on the base, to a second position where it contacts and cuts the workpiece. When cutting long workpieces, to prevent the end to be cut from tilting up, the end of the workpiece extending beyond the base needs to be supported. A common solution is to install an extension table on the side of the base.

[0003] For example, the cutting machine disclosed in patent CN202015878U includes a base, a sawing mechanism connected to the base, and a support assembly that supports the workpiece together with the base. The support assembly includes a main body and a support surface disposed on the main body for supporting the workpiece. The distance between the support surface and the lower support surface of the main body is equal to the distance between the upper surface of the base and the lower support surface of the base. A support rod is fixed on the base, and the support assembly is slidably disposed on the support rod so that its distance from the base can be freely adjusted according to the length of the workpiece, which facilitates the support of the workpiece.

[0004] Existing support components adjust the distance between themselves and the base by sliding to accommodate workpieces of different lengths. However, this structure can only adjust the front-to-back distance between the support component and the base, and cannot move left or right accordingly. It is only suitable for straight workpieces such as straight pipes or rods. If the workpiece is curved, adjusting the position of the support component only by sliding it back and forth may not provide adequate support. Furthermore, setting up a support rod for the support component to slide results in a large volume of support components extending from the base, which takes up a lot of space during transportation and storage. Utility Model Content

[0005] The above-mentioned support member adjusts the distance between itself and the base by sliding to accommodate workpieces of different lengths. However, this structure can only adjust the front-to-back distance between the support member and the base, and cannot move left or right accordingly. It is only suitable for straight workpieces such as straight pipes or rods. If the workpiece is bent, adjusting the position of the support member only by sliding it back and forth may not provide good support. In addition, setting a support rod for the support member to slide will result in a large volume of the support member extending from the base, which takes up a lot of space during transportation and storage. This utility model provides a base structure for a multi-functional saw band extension frame.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a base structure of a multi-functional saw band extension frame, including a base for installing the saw body and supporting the workpiece cut by the saw body. An extension frame is provided on one side of the base for supporting the base together. The extension frame is composed of one or more support rods, which are arranged in sequence. The tail end of the previous support rod is rotatably connected to the head end of the next support rod. One end of one or more support rods is rotatably connected to the base. The support rod can change the width of the extension frame for support by rotating to one side.

[0007] A further preferred technical solution of this utility model is as follows: when the extended functional frame is composed of multiple support rods, the first support rod of the multiple support rods is rotatably connected to the base, and the last support rod of the multiple support rods is equipped with a placement platform. The top of the placement platform is provided with a first surface for placing the workpiece to be cut, and the base is provided with a second surface for placing the workpiece to be cut. The first surface and the second surface are at the same height.

[0008] A further preferred embodiment of this utility model is: an elastic element for shock absorption is provided between the placement platform and the support rod.

[0009] A further preferred embodiment of this utility model is as follows: the elastic element includes a post and a limiting head fixed to the top of the post; the support rod has a hole for inserting the post; the limiting head is positioned above the hole; and the placement platform is connected to the elastic element by screws.

[0010] A further preferred embodiment of this invention is that the elastic element is made of silicone or rubber.

[0011] A further preferred embodiment of this invention is that the rotation between the base and the connected support rod is locked by the friction between them.

[0012] A further preferred embodiment of this invention is that the rotation between the two connected support rods is locked by the friction between them.

[0013] A further preferred embodiment of this utility model is as follows: a connecting seat is fixedly provided on one side of the base, and a first connecting piece is provided between the connecting seat and the connected support rod. The two ends of the first connecting piece are rotatably connected to the connecting seat and the support rod respectively through a first pin.

[0014] A further preferred embodiment of this utility model is as follows: a second connecting piece is provided between the two connected support rods, and the two ends of the second connecting piece are rotatably connected to the two support rods respectively through a second pin.

[0015] A further preferred technical solution of this utility model is as follows: the top of the base is provided with a clamping seat and an adjusting seat. The adjusting seat is provided with a threaded hole, and an adjusting screw is inserted into the threaded hole. One end of the adjusting screw is connected to a clamping plate. The clamping plate and the clamping seat are arranged opposite to each other to clamp and fix the workpiece to be cut between them.

[0016] Compared with the prior art, the advantage of this utility model is that an extension frame for supporting the base is provided on one side of the base. The extension frame consists of one or more support rods arranged sequentially, with the tail end of the previous support rod rotatably connected to the head end of the next support rod. One end of the one or more support rods is rotatably connected to the base. This structure allows adjustment of the angle of rotation of the support rods to one side according to the shape of the workpiece extending from the base, thereby adjusting the left and right position of the extension frame on one side of the base, so that the extension frame can rotate to form support under the workpiece. When the workpiece to be cut is a straight rod, the support rod is placed flat on one side of the base without rotating. If the part of the workpiece extending beyond the base is biased to the left, the support rod can be rotated to the left to adjust it so that the support rod swings to the left and below the workpiece. If the part of the workpiece extending beyond the base is biased to the right, the support rod can be rotated to the right to adjust it so that the support rod swings to the right and below the workpiece. This is suitable for workpieces of different shapes and allows the support rod to be rotated according to the length of the workpiece to adjust the width of the extended functional frame for support, thus adapting to workpieces of different lengths.

[0017] The extended functional rack can also be folded by rotating the support rods, reducing its size for easier transportation and storage. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a schematic diagram of the overall structure of the multi-functional saw; Figure 2 A structural diagram of the base and expansion frame; Figure 3 A sectional view of the extended functional frame and base; Figure 4 for Figure 3 Enlarged view of a portion at point A; Figure 5 for Figure 3 A magnified view of section B; Figure 6 This is a cross-sectional view of the last support rod. Figure 7 for Figure 6 A magnified view of a portion of point C.

[0020] In the diagram: 1. Saw body; 2. Base; 3. Extended functional frame; 4. Second surface; 5. First surface; 6. Placement platform; 7. Support rod; 8. Connecting seat; 9. Adjusting seat; 10. Adjusting screw; 11. Clamping plate; 12. Clamping seat; 13. Third pin hole; 14. First pin hole; 15. First connecting piece; 16. First pin shaft; 17. Second pin hole; 18. Fourth pin hole; 19. Second connecting piece; 20. Fifth pin hole; 21. Second pin shaft; 22. Elastic element; 23. Insert post; 24. Insertion hole; 25. Limiting head; 26. Screw. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0023] Figures 1-7 As shown, the base structure of the multi-functional saw band extension frame includes a base 2, on which a saw body 1 with a cutting blade is installed. The workpiece to be cut is placed on the base 2, and the base 2 supports the workpiece to be cut. The saw body 1 cuts the workpiece placed on the base 2 by moving downwards.

[0024] Figure 2 As shown, the top of the base 2 is provided with a clamping seat 12 and an adjusting seat 9. The adjusting seat 9 has a threaded hole, and an adjusting screw 10 passes through the threaded hole. One end of the adjusting screw 10 is connected to a clamping plate 11. The clamping plate 11 is arranged opposite to the clamping seat 12. The workpiece to be cut is placed between the clamping plate 11 and the clamping seat 12. By rotating the adjusting screw 10, the adjusting screw 10 moves forward or backward along the threaded hole. The adjusting screw 10 drives the clamping plate 11 to move, so that the clamping plate 11 cooperates with the clamping seat 12 to clamp and fix the workpiece to be cut in the middle. This structure is a prior art structure.

[0025] An extended work frame is provided on one side of the base 2 for supporting the base 2 together. The extended functional frame 3 is an extension part provided on the base 2 to increase the support range of the base 2, so that the base 2 and the extended functional frame 3 can support longer workpieces to be cut.

[0026] The extended function frame 3 consists of one or more support rods 7, which are arranged in sequence, with the tail end of the previous support rod 7 rotatably connected to the head end of the next support rod 7, and one or more support rods 7 having one end rotatably connected to the base 2.

[0027] Specifically, when the expansion frame 3 is composed of a single support rod 7, one end of the support rod 7 is rotatably connected to the base 2. The support rod 7 can rotate around the rotation point to the left, right, or be vertically positioned on one side of the base 2. (The case where the expansion frame 3 is a single support rod 7 is not shown in the attached drawings.) Figure 2 As shown, when the expansion frame 3 is composed of multiple support rods 7, the support rods 7 are arranged sequentially, and the tail end of the previous support rod 7 is rotatably connected to the head end of the next support rod 7, so that the multiple support rods 7 are connected into a long rod. The long rod can swing left and right like a snake around the rotation node between two adjacent support rods 7. The head end of the first support rod 7 is rotatably connected to the base 2. For example, in this embodiment, the expansion frame 3 is composed of three support rods 7 connected together.

[0028] This patent allows adjustment of the angle at which the support rod 7 rotates to one side according to the shape of the workpiece extending from the base 2. This adjusts the left and right position of the extension frame 3 on one side of the base 2, enabling the extension frame 3 to rotate to form support under the workpiece. If the workpiece is a straight rod, the support rod 7 is placed flat on one side of the base 2 without rotating. If the part of the workpiece extending from the base 2 is biased to the left, the support rod 7 can be rotated to the left to swing it to the left under the workpiece. If the part of the workpiece extending from the base 2 is biased to the right, the support rod 7 can be rotated to the right to swing it to the right under the workpiece. This adapts to different shapes of workpieces and allows the support rod 7 to be rotated according to the length of the workpiece to adjust the width of the extension frame 3 for support, thus accommodating workpieces of different lengths.

[0029] The extended functional frame 3 can also be folded by rotating the support rod 7, reducing its size for easier transportation and storage.

[0030] For example, when the workpiece to be cut is a bent rod that bends to the left, the end of the workpiece to be cut is fixed between the clamping plate 11 and the clamping seat 12, and the support rod 7 is rotated to the left along the bending direction of the rod so that the support rod 7 rotates to the bottom of the rod to support it. In theory, the more sections of support rod 7 that make up the extended functional frame 3, the more flexible the extended functional frame 3 will be.

[0031] The rotation between the base 2 and the connected support rod 7 is locked by the friction between them, so that the support rod 7 and the base 2 can be locked at the required angle position. During the cutting process, it is not easy for the position to rotate on its own due to vibration or other factors, making the structure more stable.

[0032] Figure 3 , Figure 4 As shown, a connecting seat 8 is fixedly mounted on one side of the base 2. A first connecting piece 15 is provided between the connecting seat 8 and the connected support rod 7. The two ends of the first connecting piece 15 are rotatably connected to the connecting seat 8 and the support rod 7 respectively through a first pin 16. The two ends of the first connecting piece 15 are provided with a first pin hole 14. The connecting seat 8 is provided with a second pin hole 17. The end of the support rod 7 is provided with a third pin hole 13. One first pin 16 passes through the first pin hole 14 and the second pin hole 17, and another first pin 16 passes through the first pin hole 14 and the third pin hole 13. Two first connecting pieces 15 are provided between the connecting seat 8 and the support rod 7, and the two first connecting pieces 15 are located on the upper and lower sides of the connecting seat 8 and the support rod 7.

[0033] Two first pins 16 are respectively tightly fitted and fixed to the connecting seat 8 and the support rod 7. The rotational locking of the support rod 7 and the base 2 is achieved through friction between the first pins 16 and the inner wall of the first pin hole 14. Alternatively, two first pins 16 are respectively tightly fitted and fixed to the first connecting piece 15. The rotational locking of the support rod 7 and the base 2 is achieved through friction between the two first pins 16 and the inner walls of the second pin hole 17 and the third pin hole 13. A receiving groove can also be provided at one end of the second pin hole 17 and the third pin hole 13, and a damping rubber ring fitted on the first pin 16 can be placed in the receiving groove. Rotational damping is provided through contact friction with the damping rubber ring. The support rod 7 can be rotated relative to the base 2 by applying force by hand.

[0034] When the extended functional frame 3 is composed of multiple support rods 7, the rotation between two adjacent support rods 7 is locked by the friction between them, making it less likely to rotate due to vibration or other factors during the cutting process, thus making the structure more stable.

[0035] Figure 3 , Figure 5 As shown, a second connecting piece 19 is provided between the two connected support rods 7. The two ends of the second connecting piece 19 are rotatably connected to the two support rods 7 respectively through second pins 21. Each of the two adjacent support rods 7 has a fourth pin hole 18 at its end. The two ends of the second connecting piece 19 have fifth pin holes 20 corresponding to the fourth pin holes 18. Two second pins 21 pass through the fourth pin holes 18 and the fifth pin holes 20. Two second connecting pieces 19 are provided between the two connected support rods 7, and the two second connecting pieces 19 are located on the upper and lower sides of the two support rods 7.

[0036] Two second pins 21 are respectively tightly fitted and fixed to two support rod sections 7, and the rotation of the two support rod sections 7 is locked by friction between the second pins 21 and the inner wall of the fifth pin hole 20; or the two second pins 21 are respectively tightly fitted and fixed to the second connecting piece 19, and the rotation of the two support rod sections 7 is locked by friction between the two second pins 21 and the inner walls of the two fourth pin holes 18. Alternatively, a receiving groove can be provided at one end of the fourth pin hole 18, and a damping rubber ring fitted on the second pin 21 can be placed in the receiving groove, providing rotational damping through contact friction with the damping rubber ring. The two support rod sections 7 can be rotated relative to each other by applying force by hand.

[0037] Figure 2 , Figure 6 , Figure 7 As shown, preferably, when the extended functional frame 3 is composed of multiple support rods 7, a placement platform 6 is installed on the last support rod 7 of the multiple support rods 7. The top of the placement platform 6 is provided with a first surface 5 for placing the workpiece to be cut, and the base 2 is provided with a second surface 4 for placing the workpiece to be cut. The first surface 5 and the second surface 4 are at the same height.

[0038] The first surface 5 on the placement platform 6 is mainly used for supporting flat workpieces to be cut, such as flat plates or rods. The tops of other support rods 7 can be used for supporting irregular workpieces to be cut. The support rods 7 are mainly supported by the placement platform 6 on the last support rod 7. The last support rod 7 can be rotated and folded to be placed laterally to support the extended flat workpieces to be cut.

[0039] An elastic element 22 for shock absorption is provided between the placement table 6 and the support rod 7. When the workpiece to be cut is placed on the placement table 6 for cutting, the elastic element 22 can absorb and reduce the vibration generated during the cutting process, so as to reduce the shaking of the placed workpiece to be cut.

[0040] Specifically, the elastic element 22 includes a post 23 and a limiting head 25 fixed to the top of the post 23. The support rod 7 has a socket 24 for inserting the post 23. The limiting head 25 is positioned above the socket 24. The placement platform 6 is connected to the elastic element 22 by screws 26, and the limiting head 25 is located between the top of the placement platform 6 and the support rod 7. The post 23 and the socket 24 are interference-fitted to make the elastic element 22 more stably fixed in the socket 24.

[0041] Preferably, the support rod 7 is provided with two insertion holes 24, and each insertion hole 24 is fitted with an elastic element 22. The two ends of the placement platform 6 are connected to the two elastic elements 22 by screws 26.

[0042] Preferably, the elastic element 22 is made of silicone or rubber.

[0043] The base structure of the multifunctional saw band extension frame provided by this utility model has been described above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A base structure for a multi-functional saw band extension frame, comprising a base for mounting the saw body and supporting the workpiece cut by the saw body, wherein an extension frame is provided on one side of the base for supporting the extension frame together with the base, characterized in that, The expansion frame consists of one or more support rods arranged sequentially, with the tail end of one support rod rotatably connected to the head end of the next support rod. One end of one or more support rods is rotatably connected to the base. The support rods can change the width of the expansion frame for support by rotating to one side.

2. The base structure of the multifunctional saw band extension frame according to claim 1, characterized in that, When the extended functional frame is composed of multiple support rods, the first support rod of the multiple support rods is rotatably connected to the base. The last support rod of the multiple support rods is equipped with a placement platform. The top of the placement platform is provided with a first surface for placing the workpiece to be cut. The base is provided with a second surface for placing the workpiece to be cut. The first surface and the second surface are at the same height.

3. The base structure of the multifunctional saw band extension frame according to claim 2, characterized in that, An elastic element for shock absorption is installed between the placement platform and the support rod.

4. The base structure of the multifunctional saw band extension frame according to claim 3, characterized in that, The elastic element includes a plug and a limiting head fixed to the top of the plug. The support rod has a hole for the plug to be inserted, and the limiting head is positioned above the hole. The placement platform is connected to the elastic element by screws.

5. The base structure of the multifunctional saw band extension frame according to claim 3 or 4, characterized in that, The elastic element is made of silicone or rubber.

6. The base structure of the multifunctional saw band extension frame according to claim 1, characterized in that, The rotation between the base and the connected support rod is locked by the friction between them.

7. The base structure of the multifunctional saw band extension frame according to claim 1, characterized in that, The rotation between the two connected support rods is locked by the friction between them.

8. The base structure of the multifunctional saw band extension frame according to claim 1, 2, or 6, characterized in that, A connecting seat is fixed on one side of the base, and a first connecting piece is provided between the connecting seat and the connected support rod. The two ends of the first connecting piece are rotatably connected to the connecting seat and the support rod respectively through a first pin.

9. The base structure of the multifunctional saw band extension frame according to claim 1, 2, or 7, characterized in that, A second connecting piece is provided between the two connected support rods, and the two ends of the second connecting piece are rotatably connected to the two support rods respectively through a second pin.

10. The base structure of the multifunctional saw band extension frame according to claim 1, characterized in that, The base is provided with a clamping seat and an adjusting seat on its top. The adjusting seat has a threaded hole, and an adjusting screw passes through the threaded hole. One end of the adjusting screw is connected to a clamping plate. The clamping plate and the clamping seat are arranged opposite to each other to clamp and fix the workpiece to be cut between them.

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