Shock-absorbing multipurpose saw with quick-changing function

Abstract

The utility model relates to the technical field of shock-absorbing multipurpose saws, and discloses a shock-absorbing multipurpose saw with a quick-changing function, which comprises a machine body, a saw blade, a saw blade, a saw blade, a saw blade and a saw blade, and is characterized in that the machine body is used for bearing and mounting various parts of the multipurpose saw; the tool bit is used for cutting various materials; the grip is arranged on the inner wall of the machine body and used for connecting and fixing components in the machine body; the damping connecting rod is arranged on the grip, and the damping connecting rod is used for connecting the grip with the inner wall of the machine body; the motor is arranged on the inner wall of the machine body, and the motor is used for driving; the driving mechanism is arranged on the inner wall of the machine body, and the driving mechanism is used for converting rotating operation into driving telescopic force. According to the shock-absorbing multi-purpose saw with the quick-changing function, through the linkage design of the driving mechanism and the adaptive mechanism, for example, a pulling buckle is rotated to drive a tensioning rod, a steel ball is locked and the like, the tool bit can be mounted and dismounted only through the rotation or pressing action, additional tools are not needed, and the operation efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to shock attenuation multi -purpose saw technical field, concretely is a quick change function's shock attenuation multi -purpose saw. BACKGROUND

[0002] Multi -purpose saw is a kind of multipurpose saw class tools or equipment, plays an important role in different fields.In the field of wood processing, such as furniture manufacturing, decoration, packaging and industrial production, is often used for cutting wood.In the aspect of metal processing, can be used for sawing metal sheet, pipe, section bar etc.In addition, in forest felling, timber, branch and timber yard timber, railway sleeper sawing operation also can see its figure.

[0003] In the current saw class tool technical field, the replacement operation of cutter head has significant deficiency.In actual application scene, often need to replace corresponding cutter head in time to achieve the best cutting effect according to different work tasks, such as cutting wood, metal or plastic and different materials.However, in the prior art, the fixing mode of cutter head is mostly dependent on screw fixing or buckle adjustment means.Taking screw fixing as an example, just like we daily use screw to install furniture, need to use screwdriver to tighten or loosen screw one by one, this process not only needs additional tool, but also when the number of screws is more, operation is extremely tedious, and a lot of time is consumed.

[0004] Chinese patent CN207239310U discloses a kind of multi -functional saw quick change structure and quick change method, it includes head shell, output shaft and quick change device, quick change device is through rotating quick change buckle, then in turn drive eccentric block, movable rod, small cylindrical compression spring and movable support, make the second cylindrical pin in the guide slot of locking foot lower portion of movable support move downward, promote locking foot to rotate around third cylindrical pin and close, after installing saw blade, force upward, locking foot will open, lock saw blade, realize the quick replacement of saw blade.The multi -functional saw quick change structure involved in the utility model only needs to realize the purpose of disassembling and replacing saw blade by pulling quick change buckle on the upper side of head shell, without using other auxiliary tools, simple operation, fast.

[0005] Chinese patent CN105728846A discloses a kind of quick change multi -functional saw structure, the quick change device includes quick change buckle, eccentric block, movable rod, spring chuck, expansion rod, compression spring, quick change buckle and eccentric block are connected with the top of head shell by cylindrical pin, movable rod is arranged in output shaft, top is connected with eccentric block closely, bottom is screw connected with expansion rod, expansion rod outside is covered with spring chuck, spring chuck outside is covered with compression spring, the cutter holder is arranged at the bottom of output shaft, the inner wall of cutter holder is provided with the slope from top to bottom to the inside, the outer surface of corresponding spring chuck is provided with protruding block, the quick change multi -functional saw structure involved in the utility model only needs to realize the change of spring chuck diameter by pulling quick change buckle, to realize the purpose of disassembling and replacing saw blade.

[0006] The prior art discloses that the saw blade can be disassembled and replaced by only pulling the quick-change buckle, but the prior art does not have a damping function, and the battery pack and the user are easily damaged during the operation of the saw blade. In addition, the quick-change structure in the prior art is inconvenient to replace each other, and if the user needs to replace the saw blade of multiple shapes, the user needs to purchase multiple products, which is high in cost. Practical new type content

[0007] (I) technical problems solved

[0008] In view of the deficiencies of the prior art, the utility model provides a damping multi-purpose saw with quick-change function, which solves the problem that the tool head needs to be prepared with additional tools and the operation of the screw is complicated in the current saw tool technical field.

[0009] (II) technical scheme

[0010] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0011] A damping multi-purpose saw with quick-change function, comprising: a machine body for bearing and mounting various parts of the multi-purpose saw; a tool head for cutting various materials; a handle provided on the inner wall of the machine body for connecting and fixing the parts in the machine body; a damping connecting rod provided on the handle for connecting the handle and the inner wall of the machine body; a motor provided on the inner wall of the machine body for driving; a driving mechanism provided on the inner wall of the machine body for converting the rotating operation into driving extension force; and an adapting mechanism provided on the inner wall of the machine body for converting the force output by the driving mechanism into the force for pressing and releasing the tool head.

[0012] Preferably, the driving mechanism comprises a connecting hollow cylinder fixedly connected to the inner wall of the machine body, a rotating buckle rotatably connected to the outer wall of the connecting hollow cylinder, a rotating shaft fixedly connected to the outer wall of the rotating buckle, and a cylindrical pin rotatably connected to the inner wall of the rotating shaft.

[0013] Preferably, a cylindrical compression spring is arranged on the inner wall of the connecting hollow cylinder, one end of the cylindrical compression spring is fixedly connected to the inner wall of the connecting hollow cylinder, the other end of the cylindrical compression spring is fixedly connected with a spring limiting seat, and the top of the spring limiting seat is fixedly connected with an end face cam.

[0014] Preferably, an arc-shaped sliding groove is arranged on the inner wall of the end face cam, the arc-shaped sliding grooves are symmetrically arranged, and the cylindrical pin is located in the arc-shaped sliding groove of the end face cam.

[0015] Preferably, the rotating buckle is provided with a volute spring, one end of the volute spring is fixedly connected to the rotating buckle, and the other end of the volute spring is fixedly connected to the inner wall of the connecting hollow cylinder.

[0016] Preferably, the adapting mechanism comprises a Q-type adapting mechanism, a Y-type adapting mechanism, an E-type adapting mechanism or a K-type adapting mechanism, the Q-type adapting mechanism is provided with an output cylinder I, the output cylinder I is arranged on the inner wall of the body, a spring collet is arranged on the inner wall of the output cylinder I, the spring collet is slidably connected to the inner wall of the tool holder output shaft, and a tension rod is fixedly connected to the outer wall of the tool holder output shaft.

[0017] Preferably, the inner wall of the body is fixedly connected to the output cylinder I, and the inner wall of the output cylinder I is slidably connected to the tool holder output shaft.

[0018] Preferably, the bottom of the tension rod is provided with a convex arc block, and the outer wall of the tension rod is slidably connected to the inner wall of the spring collet.

[0019] Preferably, the inner wall of the spring collet is hollow, and the outer wall of the spring collet is provided with a slot.

[0020] Preferably, the Y-type adapting mechanism comprises an output cylinder II, the inner wall of the body is fixedly connected with the output cylinder II, the inner wall of the output cylinder II is provided with a hollow output rod, the hollow output rod is fixedly connected to the bottom of the tool holder output shaft, the inner wall of the hollow output rod is provided with a steel ball, the inner wall of the hollow output rod is slidably connected with a Y-type pressing block, the top of the Y-type pressing block is a convex disc block, the bottom of the Y-type pressing block is a disc block, the inner wall of the output cylinder II is provided with a large cavity; the E-type adapting mechanism comprises an output cylinder III, the inner wall of the body is fixedly connected with the output cylinder III, the bottom of the tool holder output shaft is fixedly connected with a solid output rod, the bottom of the solid output rod is threadedly connected with an E-type pressing block, the K-type adapting mechanism comprises an output cylinder IV, the inner wall of the body is fixedly connected with the output cylinder IV, the bottom of the tool holder output shaft is fixedly connected with an output sleeve rod, the bottom of the output sleeve rod is provided with a locking foot, the inner wall of the output cylinder IV is fixedly connected with an output sleeve block, the top of the locking foot is provided with an arc-shaped groove, the locking foot is rotatably connected to the inner wall of the output sleeve block, and the locking foot is provided with two.

[0021] (Three) beneficial effects

[0022] Compared with the prior art, the utility model provides a shock -absorbing multi -purpose saw with quick change function has the following beneficial effects:

[0023] 1. The quick-change function of the shock-absorbing multi-purpose saw, through the linkage design of the driving mechanism and the matching mechanism, such as rotating the buckle to drive the tensioning rod, steel ball locking, etc., only rotating or pressing action can complete the installation and disassembly of the tool bit, without additional tools, significantly improving the operation efficiency.

[0024] 2. The quick-change function of the shock-absorbing multi-purpose saw provides a variety of matching mechanisms, Q type, Y type, E type, K type, through the differential structure of spring collet, steel ball, locking foot, etc., to adapt to different tool bit types, such as cutting metal, wood, pipe, etc., to realize "one machine multi-purpose".

[0025] 3. The quick-change function of the shock-absorbing multi-purpose saw uses the tensioning rod to extrude the spring collet to open, the steel ball cooperates with the large cavity to lock, and the locking foot arc slot opens and closes, etc. Dynamic fixing mode ensures that the tool bit does not deviate or loosen under high-speed operation or load.

[0026] 4. The quick-change function of the shock-absorbing multi-purpose saw realizes "one-key" operation through the linkage of the rotating buckle of the driving mechanism and the spiral spring, which rotates to lock / unlock, reduces the risk of misoperation, and avoids the loss or damage of parts caused by traditional tool disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 A quick-change function of the shock-absorbing multi-purpose saw overall structure schematic diagram is proposed for the utility model;

[0028] Figure 2 A quick-change function of the shock-absorbing multi-purpose saw handle structure schematic diagram is proposed for the utility model;

[0029] Figure 3 A quick-change function of the shock-absorbing multi-purpose saw driving mechanism structure schematic diagram is proposed for the utility model;

[0030] Figure 4 A quick-change function of the shock-absorbing multi-purpose saw spiral spring structure schematic diagram is proposed for the utility model;

[0031] Figure 5 A quick-change function of the shock-absorbing multi-purpose saw end face cam structure schematic diagram is proposed for the utility model;

[0032] Figure 6 A quick-change function of the shock-absorbing multi-purpose saw output cylinder one cross-sectional structure schematic diagram is proposed for the utility model;

[0033] Figure 7 A quick-change function of the shock-absorbing multi-purpose saw tool bit structure schematic diagram is proposed for the utility model;

[0034] Figure 8 A quick-change function of the shock-absorbing multi-purpose saw tensioning rod structure schematic diagram is proposed for the utility model;

[0035] Figure 9 Figure 2 is a cross-sectional structure schematic view of the hollow output rod of the shock-absorbing multi-purpose saw with quick-change function according to the utility model;

[0036] Figure 10 Figure 2 is a cross-sectional structure schematic view of the hollow output rod of the shock-absorbing multi-purpose saw with quick-change function according to the utility model;

[0037] Figure 11 Figure 2 is a cross-sectional structure schematic view of the hollow output rod of the shock-absorbing multi-purpose saw with quick-change function according to the utility model;

[0038] Figure 12 Figure 2 is a cross-sectional structure schematic view of the hollow output rod of the shock-absorbing multi-purpose saw with quick-change function according to the utility model;

[0039] Figure 13 Figure 2 is a cross-sectional structure schematic view of the hollow output rod of the shock-absorbing multi-purpose saw with quick-change function according to the utility model.

[0040] In the figure: 1, machine body; 2, cutter head; 3, handle; 4, shock-absorbing connecting rod; 5, motor; 6, driving mechanism; 61, connecting hollow cylinder; 62, rotating buckle; 63, rotating shaft; 64, cylindrical compression spring; 65, spring limiting seat; 66, end face cam; 67, cutter holder output shaft; 68, cylindrical pin; 69, volute spring; 7, Q-shaped adapting mechanism; 71, output cylinder one; 72, spring collet; 73, tensioning rod; 8, Y-shaped adapting mechanism; 81, output cylinder two; 82, hollow output rod; 83, steel ball; 84, Y-shaped pressing block; 85, large cavity; 9, E-shaped adapting mechanism; 91, output cylinder three; 92, solid output rod; 93, E-shaped pressing block; 10, K-shaped adapting mechanism; 101, output cylinder four; 102, output sleeve rod; 103, output sleeve block; 104, locking foot. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0042] Embodiment 1

[0043] Please refer to Figures 1-8The utility model provides a kind of shock-absorbing multi-purpose saw of quick-change function, comprising: machine body 1, for carrying and installing the various components of multi-purpose saw, provide stable structural support for the whole equipment, is the core carrier of power transmission and operation control;Tool bit 2, for cutting operation to various materials, is the direct execution component for realizing the function of multi-purpose saw;It can replace different types according to different cutting needs;Grip 3, grip 3 is arranged on the inner wall of machine body 1, for connecting and fixing the components in the inside of machine body 1;Shock-absorbing connecting rod 4, grip 3 is provided with shock-absorbing connecting rod 4, shock-absorbing connecting rod 4 is used to connect the inner wall of grip 3 and machine body 1, plays the role of shock absorption, when multi-purpose saw works, sawing action can produce vibration and pass to grip 3, shock-absorbing connecting rod 4 can effectively buffer these vibrations, reduce the vibration amplitude passed to the hand of user, reduce the impact force borne by hand when long time operation, make that user holds more easily, comfortably, reduce fatigue, by grip 3, shock-absorbing connecting rod 4 and machine body 1 integrally formed into shock-absorbing assembly, shock-absorbing assembly two ends are connected with head shell and battery package respectively, shock-absorbing connecting rod 4 can effectively buffer the vibration generated in the operation process of equipment, reduce vibration to grip 3, so as to reduce the discomfort of hand of user, after reducing vibration amplitude, user can more accurately control equipment, improve use effect, shock-absorbing assembly can buffer the influence of external vibration or impact on machine body 1 and other precision components, prolong the service life of equipment;Motor 5, motor 5 is arranged on the inner wall of machine body 1, and motor 5 is used to drive, provides power source for the whole multi-purpose saw;Driving mechanism 6, driving mechanism 6 is arranged on the inner wall of machine body 1, and driving mechanism 6 is used to convert rotating operation into driving telescopic force;Adapting mechanism, adapting mechanism is arranged on the inner wall of machine body 1, and adapting mechanism converts the force output by driving mechanism 6 into the force that presses and releases tool bit 2, and adapting mechanism includes Q-type adapting mechanism 7 or Y-type adapting mechanism 8 or E-type adapting mechanism 9 or K-type adapting mechanism 10.

[0044] The driving mechanism 6 comprises a connecting hollow cylinder 61, the inner wall of the body 1 is fixedly connected with the connecting hollow cylinder 61, the outer wall of the connecting hollow cylinder 61 is rotatably connected with a rotating buckle 62, the outer wall of the rotating buckle 62 is fixedly connected with a rotating shaft 63, the inner wall of the rotating shaft 63 is rotatably connected with a cylindrical pin 68, the inner wall of the connecting hollow cylinder 61 is provided with a cylindrical compression spring 64, one end of the cylindrical compression spring 64 is fixedly connected to the inner wall of the connecting hollow cylinder 61, the other end of the cylindrical compression spring 64 is fixedly connected with a spring limiting seat 65, the top of the spring limiting seat 65 is fixedly connected with an end face cam 66, the inner wall of the end face cam 66 is provided with an arc-shaped sliding groove, the arc-shaped sliding grooves are symmetrically arranged, the cylindrical pin 68 is located in the arc-shaped sliding groove of the end face cam 66, when the cylindrical pin 68 is rotated, the cylindrical pin 68 is pressed down along the arc-shaped sliding groove of the end face cam 66, the rotating buckle 62 is provided with a volute spring 69, one end of the volute spring 69 is fixedly connected to the rotating buckle 62, the other end of the volute spring 69 is fixedly connected to the inner wall of the connecting hollow cylinder 61, so that the rotating buckle 62 is maintained in the position shown in the volute spring 69, when the rotating buckle 62 is rotated, the rotating buckle 62 drives the volute spring 69 to store energy. Figure 1 As shown in the figure.

[0045] The Q-shaped adapter mechanism 7 is provided with an output cylinder I 71, the output cylinder I 71 is arranged on the inner wall of the body 1, the inner wall of the output cylinder I 71 is provided with a spring chuck 72, the spring chuck 72 is slidably connected to the inner wall of the tool holder output shaft 67, the outer wall of the tool holder output shaft 67 is fixedly connected with a tensioning rod 73, the inner wall of the body 1 is fixedly connected with the output cylinder I 71, the inner wall of the output cylinder I 71 is slidably connected with the tool holder output shaft 67, so that the tool holder output shaft 67 stably slides up and down, the bottom of the tensioning rod 73 is provided with a convex arc block, the outer wall of the tensioning rod 73 is slidably connected with the inner wall of the spring chuck 72, the inner wall of the spring chuck 72 is hollow, the outer wall of the spring chuck 72 is provided with a slot, so that the hollow cylinder of the spring chuck 72 is divided into four parts, when the tensioning rod 73 moves upward, the four parts of the spring chuck 72 are opened to press and fix the tool bit 2.

[0046] In summary, the shock-absorbing multi-purpose saw with quick-change function is used, the rotating buckle 62 is rotated, the rotating buckle 62 drives the volute spring 69 to store energy, the rotating buckle 62 drives the rotating shaft 63 to rotate, the rotating shaft 63 drives the cylindrical pin 68 to rotate, the cylindrical pin 68 is moved to the top of the arc-shaped sliding groove of the end face cam 66, the end face cam 66 is pressed downward, the end face cam 66 drives the spring limiting seat 65 to press the cylindrical compression spring 64 downward, the spring limiting seat 65 drives the tool holder output shaft 67 to move downward, and vice versa, when the rotating buckle 62 is reset, the cylindrical compression spring 64 drives the spring limiting seat 65 and the tool holder output shaft 67 to move upward, so that the tool holder output shaft 67 moves downward by rotating the rotating buckle 62, the tool holder output shaft 67 moves upward when the rotating buckle 62 is reset, when the tool holder output shaft 67 moves downward, the tool holder output shaft 67 drives the tensioning rod 73 to move downward, when the tool holder output shaft 67 moves upward, the tool holder output shaft 67 drives the tensioning rod 73 to move upward, so that the tensioning rod 73 presses the spring collet 72 to open, and the spring collet 72 moves upward with the tensioning rod 73, so that the spring collet 72 presses and fixes the tool bit 2, and plays a role of convenient and quick installation and disassembly.

[0047] Embodiment 2

[0048] In actual use, the Q-shaped adapter mechanism 7 cannot adapt to all tool bits 2, therefore, the following Y-shaped adapter mechanism 8 can also be used.

[0049] Please refer to Figures 9-10 The inner wall of the body 1 is fixedly connected with an output cylinder two 81, the inner wall of the output cylinder two 81 is provided with a hollow output rod 82, the hollow output rod 82 is fixedly connected at the bottom of the tool holder output shaft 67, the inner wall of the hollow output rod 82 is provided with a steel ball 83, the inner wall of the hollow output rod 82 is slidably connected with a Y-shaped pressing block 84, the top of the Y-shaped pressing block 84 is a convex disc block, the bottom of the Y-shaped pressing block 84 is a disc block, and the inner wall of the output cylinder two 81 is provided with a large cavity 85.

[0050] When the tool holder output shaft 67 moves downward, the steel ball 83 enters the large cavity 85, the top convex disc block of the Y-shaped pressing block 84 is no longer locked by the steel ball 83 and can be freely pulled out or inserted, after the Y-shaped pressing block 84 is inserted, the rotating buckle 62 is reset, the tool holder output shaft 67 moves upward, the tool holder output shaft 67 drives the steel ball 83 to lock the Y-shaped pressing block 84 upward, plays a role of quick disassembly and fixation, and compared with embodiment 1, this connection mode is more stable and is suitable for more tool bits 2.

[0051] Embodiment 3

[0052] Further, the adapter mechanism can also use the following E-shaped adapter mechanism 9.

[0053] Referring to Figure 11 The inner wall of the body 1 is fixedly connected with an output cylinder three 91, the bottom of the tool rest output shaft 67 is fixedly connected with a solid output rod 92, and the bottom of the solid output rod 92 is threadedly connected with an E-shaped pressing block 93.

[0054] When the tool rest output shaft 67 moves downward, the tool rest output shaft 67 drives the solid output rod 92 and the E-shaped pressing block 93 to move downward, rotates the E-shaped pressing block 93, and then installs the tool bit 2 and threadedly connects the E-shaped pressing block 93 back, so that the tool rest output shaft 67 moves upward to drive the E-shaped pressing block 93 to fix the tool bit 2.

[0055] Embodiment 4

[0056] Further, the above-mentioned adapting mechanism can also use the following K-shaped adapting mechanism 10.

[0057] Referring to Figures 12-13 The inner wall of the body 1 is fixedly connected with an output cylinder four 101, the bottom of the tool rest output shaft 67 is fixedly connected with an output sleeve rod 102, the bottom of the output sleeve rod 102 is provided with a locking foot 104, the inner wall of the output cylinder four 101 is fixedly connected with an output sleeve block 103, the top of the locking foot 104 is provided with an arc-shaped groove, and the locking foot 104 is rotatably connected with the inner wall of the output sleeve block 103. The locking foot 104 is provided with two.

[0058] When the tool rest output shaft 67 moves downward, the tool rest output shaft 67 drives the output sleeve rod 102 to move downward, the shaft at the bottom of the output sleeve rod 102 downwardly abuts against the arc-shaped grooves of the locking feet 104, so that the locking feet 104 are mutually closed. At this time, the tool bit 2 is taken out. When the tool rest output shaft 67 moves upward, the shaft at the bottom of the output sleeve rod 102 upwardly abuts against the arc-shaped grooves of the locking feet 104, so that the locking feet 104 are mutually opened. The opened locking feet 104 press and fix the tool bit 2.

[0059] It should be noted that, in the present document, the terms such as first and second, etc. are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms “include”, “contain” or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement “including a…”, does not exclude the presence of other identical elements in the process, method, article or equipment including the element.

Claims

1. A quick change function shock absorbing multi-purpose saw characterized by: Include: Machine body (1) for carrying and installing various parts of multi-purpose saw; Head (2) for cutting various materials; Handle (3) provided on the inner wall of the machine body (1) for connecting and fixing the parts inside the machine body (1); Damping connecting rod (4) provided on the handle (3), the damping connecting rod (4) is used to connect the handle (3) and the inner wall of the machine body (1); Motor (5) provided on the inner wall of the machine body (1), the motor (5) is used for driving; Drive mechanism (6) provided on the inner wall of the machine body (1), the drive mechanism (6) is used to convert the rotating operation into driving telescopic force; The adaptation mechanism is provided on the inner wall of the machine body (1), and the adaptation mechanism converts the force output by the drive mechanism (6) into the force of pressing and releasing the head (2).

2. The quick change function shock absorbing multi-purpose saw according to claim 1, wherein: The drive mechanism (6) includes a connecting hollow cylinder (61), the inner wall of the machine body (1) is fixedly connected with the connecting hollow cylinder (61), the outer wall of the connecting hollow cylinder (61) is rotatably connected with a rotating buckle (62), the outer wall of the rotating buckle (62) is fixedly connected with a rotating shaft (63), and the inner wall of the rotating shaft (63) is rotatably connected with a cylindrical pin (68).

3. The quick change function shock absorbing multi-purpose saw according to claim 2, wherein: The inner wall of the connecting hollow cylinder (61) is provided with a cylindrical compression spring (64), one end of the cylindrical compression spring (64) is fixedly connected with the inner wall of the connecting hollow cylinder (61), the other end of the cylindrical compression spring (64) is fixedly connected with a spring limiting seat (65), and the top of the spring limiting seat (65) is fixedly connected with an end face cam (66).

4. The quick change function shock absorbing multi-purpose saw according to claim 3, wherein: The inner wall of the end face cam (66) is provided with an arc-shaped sliding groove, the arc-shaped sliding grooves are symmetrically arranged, and the cylindrical pin (68) is located in the arc-shaped sliding groove of the end face cam (66).

5. A quick change function shock absorbing multi-purpose saw according to claim 4, characterized in that: The rotating buckle (62) is provided with a spiral spring (69), one end of the spiral spring (69) is fixedly connected with the rotating buckle (62), and the other end of the spiral spring (69) is fixedly connected with the inner wall of the connecting hollow cylinder (61).

6. A quick change function shock absorbing multi-purpose saw as claimed in claim 5 wherein: The adaptation mechanism includes Q-type adaptation mechanism (7) or Y-type adaptation mechanism (8) or E-type adaptation mechanism (9) or K-type adaptation mechanism (10), the Q-type adaptation mechanism (7) is provided with an output cylinder (71), the output cylinder (71) is arranged on the inner wall of the machine body (1), the inner wall of the output cylinder (71) is provided with a spring chuck (72), the spring chuck (72) is slidably connected with the inner wall of the knife holder output shaft (67), and the outer wall of the knife holder output shaft (67) is fixedly connected with a tension rod (73).

7. A quick change function shock absorbing multi-purpose saw as claimed in claim 6 wherein: The inner wall of the machine body (1) is fixedly connected with the output cylinder (71), the inner wall of the output cylinder (71) is slidably connected with the knife holder output shaft (67).

8. The quick change function shock absorbing multi-purpose saw of claim 6, wherein: The bottom of the tension rod (73) is provided with a convex arc block, and the outer wall of the tension rod (73) is slidably connected with the inner wall of the spring chuck (72).

9. The quick change function shock absorbing multi-purpose saw of claim 6, wherein: The inner wall of the spring chuck (72) is hollow, and the outer wall of the spring chuck (72) is provided with a slot.

10. The quick change function shock absorbing multi-purpose saw of claim 6, wherein: The Y-shaped adapting mechanism (8) comprises an output cylinder two (81), the inner wall of the machine body (1) is fixedly connected with the output cylinder two (81), the inner wall of the output cylinder two (81) is provided with a hollow output rod (82), the bottom of the output rod (82) is fixedly connected with the knife holder output shaft (67), the inner wall of the hollow output rod (82) is provided with a steel ball (83), the inner wall of the hollow output rod (82) is slidably connected with a Y-shaped pressing block (84), the top of the Y-shaped pressing block (84) is a convex disc block, the bottom of the Y-shaped pressing block (84) is a disc block, the inner wall of the output cylinder two (81) is provided with a large cavity (85); the E-shaped adapting mechanism (9) comprises an output cylinder three (91), the inner wall of the machine body (1) is fixedly connected with the output cylinder three (91), the bottom of the knife holder output shaft (67) is fixedly connected with a solid output rod (92), the bottom of the solid output rod (92) is threadedly connected with an E-shaped pressing block (93), the K-shaped adapting mechanism (10) comprises an output cylinder four (101), the inner wall of the machine body (1) is fixedly connected with the output cylinder four (101), the bottom of the knife holder output shaft (67) is fixedly connected with an output sleeve rod (102), the bottom of the output sleeve rod (102) is provided with a locking foot (104), the inner wall of the output cylinder four (101) is fixedly connected with an output sleeve block (103), the top of the locking foot (104) is provided with an arc-shaped groove, the locking foot (104) is rotatably connected with the inner wall of the output sleeve block (103), and the locking foot (104) is provided with two.

Images