Conversion linkage member for compound saw, and compound saw comprising same

Abstract

A conversion linkage member for a compound saw, and a compound saw comprising same. The compound saw comprises: a plurality of movable parts (2, 7, 13, 8, 18), wherein each movable part is located at a bench cutting position in a bench cutting mode and is located at a bevel cutting position in a bevel cutting mode; and a conversion linkage member (17), respectively operably connected to the plurality of movable parts (2, 7, 13, 8, 18), wherein one movable part (18) among the plurality of movable parts is a driving part and the other movable parts (2, 7, 13, 8) are driven parts, and in the process that the driving part (18) moves from the bench cutting position thereof to the bevel cutting position, the driving part drives the conversion linkage member (17) to move, so that the conversion linkage member drives the driven parts (2, 7, 13, 8) to move from the bench cutting positions thereof to the bevel cutting positions. According to the compound saw, the compound saw can be switched between the bench cutting mode and the bevel cutting mode by means of one operation action, the operation is simple and the structure is simple, thereby being conducive to machining and also being conducive to productization.

Description

Conversion linkage for compound saw and compound saw having the same

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 202311635735.7, entitled “CONVERSION LINKAGE FOR A COMPOUND SAW AND A COMPOUND SAW HAVING THE SAME,” filed on December 1, 2023, and is hereby incorporated by reference into this application. Technical Field

[0003] The present invention relates to the field of cutting technology, in particular to a conversion linkage component for a compound saw and a compound saw having the conversion linkage component. Background Art

[0004] A compound saw, also known as a compound saw, is a versatile tool featuring both miter and bench cut modes, adapting to a wide range of cutting needs. Compound saws are popular across a variety of industries, including carpentry and construction, due to their ability to increase productivity and deliver high-quality results. Miter cut mode is a key feature of compound saws, allowing users to cut at varying angles. This is particularly useful for tasks requiring specific cut angles, such as creating beveled joints and trimming ceiling and floor panels. Bench cut mode is another key feature, enabling compound saws to cut vertically, making it particularly useful for making crosscuts, planing lumber, or cutting large workpieces.

[0005] In existing compound saws, switching from bench cutting mode to miter cutting mode requires multiple steps. First, the operator must unlock the saw blade assembly so that it can be freely raised, lowered, or rotated to a specific cutting angle. For safety reasons, the upper guard assembly must always cover the saw blade component in miter cutting mode, so the operator must also lock the upper guard assembly. In addition, in miter cutting mode, the operator must perform at least two operations to activate the saw blade component to avoid accidental activation and safety accidents. Typically, existing compound saws use a movable baffle to achieve this safety requirement. The operator needs to first lift the movable baffle and then press the switch to activate the saw blade component.

[0006] However, in bench cutting mode, the upper guard assembly must be lifted to expose the saw blade assembly, and there is no safety requirement for activating the saw blade assembly in at least two steps. However, due to the conversion structure of existing compound saws, when the operator switches the compound saw from bevel cutting mode to bench cutting mode, the operator must manually unlock the upper guard to expose the upper side of the saw blade assembly for cutting in bench cutting mode, then open the movable guard and press the switch to activate the saw blade assembly for cutting.

[0007] In summary, when switching between the table cutting and bevel cutting modes of the existing compound saw, the operation is very complicated, generally requiring two to three steps to complete, causing inconvenience to the operator.

[0008] Summary of the Invention

[0009] The object of the present invention is to overcome the problem of complicated operation when converting between table cutting and bevel cutting modes in existing compound saws, and to provide a conversion linkage for a compound saw and a compound saw having the conversion linkage, wherein the conversion linkage enables the compound saw to quickly switch between the table cutting mode and the bevel cutting mode.

[0010] The conversion linkage member for a compound saw provided by the present invention can enable the compound saw to quickly switch between a bench cutting mode and a bevel cutting mode;

[0011] The compound saw includes a plurality of movable members, each movable member being in a bench cutting position in the bench cutting mode and in a beveling position in the beveling mode;

[0012] The conversion linkage is operably connected to the plurality of movable components respectively;

[0013] Among them, one of the multiple movable components is an active component, and the other movable components are driven components. During the process of the active component moving from its table cutting position to the bevel cutting position, the active component drives the conversion linkage to move, and then the conversion linkage drives the driven component to move from its table cutting position to the bevel cutting position.

[0014] As an improvement of the above device, the compound saw comprises:

[0015] a base 23 having a beveling work surface for supporting a workpiece in the beveling mode; and

[0016] a frame 5 for mounting a saw blade, the frame 5 being pivotally connected to the base 23;

[0017] The active component is a mode conversion lock 18; when the mode conversion lock 18 is in the bevel position, it restricts the frame 5 from moving relative to the base 23; when the mode conversion lock 18 is in the bevel position, it allows the frame 5 to pivot relative to the base 23;

[0018] Preferably, the active component is manually operated.

[0019] As an improvement of the above device, the driven component includes one or more of the following groups: an upper protective cover lock 2 for locking the upper protective cover 1 in the bevel cutting position, a bevel cutting conversion table switch lock 10 for blocking the start switch 6-1 in the bevel cutting position, and a table cutting dust outlet 22 for discharging dust in the table cutting position;

[0020] Preferably, the set further comprises: a micro switch baffle for blocking the micro switch of the compound saw when in the table cutting position.

[0021] As an improvement to the above device, in the process of moving the active component from its bevel cutting position to the bench cutting position, the active component drives the conversion linkage to move, and then the conversion linkage drives the driven component to move from its bevel cutting position to the bench cutting position.

[0022] As an improvement to the above device, the conversion linkage comprises:

[0023] a single-piece plate-shaped member 17 connected to the mode conversion lock 18 and capable of moving between a bevel cutting position and a bench cutting position under the drive of the mode conversion lock 18 , wherein the plate-shaped member 17 is connected to the upper protective cover lock 2 ;

[0024] A conversion spring 15, one end of which is connected to the frame 5, and the other end of which is connected to the mode conversion lock 18, wherein the mode conversion lock 18 moves to the bevel position under the pulling force of the conversion spring 15;

[0025] a switch lock second connecting rod 13 , the switch lock second connecting rod 13 being connected to the plate-shaped member 17 ;

[0026] The switch lock first link 8 is connected to the switch lock second link 13 and the switch lock 10 respectively, and the plate-shaped member 17 drives the switch lock 10 by using the switch lock second link 13 and the switch lock first link 8; and

[0027] The platform-cut dust outlet connecting rod 7 is connected to the plate-shaped member 17 and the platform-cut dust outlet 22 respectively. The plate-shaped member 17 drives the platform-cut dust outlet 22 by using the platform-cut dust outlet connecting rod 7.

[0028] As an improvement to the above device, the mode conversion lock 18 is provided with:

[0029] A mode conversion lock first through hole 18 - 1 , through which the mode conversion lock 18 is hinged to the frame 5 , with the hinge axis serving as the rotation center;

[0030] A second through hole 18 - 2 of the mode conversion lock, through which the mode conversion lock 18 is connected to the plate-like member 17 , is used to drive the plate-like member 17 to move between the bevel cutting position and the table cutting position;

[0031] a mode conversion lock fourth through hole 18 - 4 , through which the mode conversion lock 18 is connected to the conversion spring 15 ; and

[0032] A mode conversion lock hook lock 18 - 5 , wherein the mode conversion lock 18 locks the frame 5 to the base 23 through the mode conversion lock hook lock 18 - 5 ;

[0033] Preferably, the plate-shaped member 17 is provided with:

[0034] a first plate-shaped through slot 17 - 1 , through which the plate-shaped member 17 is connected to the upper protective cover lock 2 ;

[0035] a second plate-shaped member through-slot 17 - 2 , through which the plate-shaped member 17 is connected to the second through-hole 18 - 2 of the mode conversion lock 18 ;

[0036] The plate-shaped member has a third through slot 17 - 3 , and the plate-shaped member 17 is connected to the switch lock second connecting rod 13 via the plate-shaped member third through slot 17 - 3 ;

[0037] a plate-like member guide groove 17-4, through which the plate-like member 17 is movably mounted to the frame 5 using a connecting bolt, and whose movement path is restricted by the shape of the plate-like member guide groove 17-4; and

[0038] The plate-shaped member has a fourth through slot 17-6, through which the plate-shaped member 17 is connected to the table-cutting dust outlet connecting rod 7;

[0039] Preferably, the plate-shaped member 17 is further provided with a micro switch baffle 17 - 5 .

[0040] As an improvement of the above device, the upper protective cover lock 2 is provided with:

[0041] The upper protective cover lock second through hole 2-2, the upper protective cover lock 2 is hinged to the frame 5 through the upper protective cover lock second through hole 2-2, and is used to rotate the upper protective cover lock 2 with the hinge axis with the frame 5 as the rotation center, driven by the plate-shaped member 17; and

[0042] The upper guard cover hook lock 2 - 3 is used to lock the upper guard cover 1 in the bevel cutting mode so that the upper guard cover covers the upper side of the saw blade.

[0043] As an improvement to the above device, the switch lock second connecting rod 13 is provided with:

[0044] The switch lock second link first through hole 13-1, the switch lock second link 13 is hinged to the frame 5 through the switch lock second link first through hole 13-1, and rotates with the hinge axis as the rotation center, driven by the plate-shaped member 17;

[0045] a switch lock second link second through hole 13 - 2 , through which the switch lock second link 13 is connected to the switch lock first link 8 ; and

[0046] The switch lock second connecting rod first through slot 13 - 3 , the switch lock second connecting rod 13 is connected to the plate-shaped member 17 through the switch lock second connecting rod first through slot 13 - 3 ;

[0047] The first connecting rod 8 of the switch lock is provided with:

[0048] The first through hole 8-1 of the first connecting rod of the switch lock, the first connecting rod 8 of the switch lock is connected to the second connecting rod 13 of the switch lock through the first through hole 8-1 of the first connecting rod of the switch lock;

[0049] The second through hole 8 - 2 of the first connecting rod of the switch lock and the third through hole 8 - 3 of the first connecting rod of the switch lock are used for installing the switch lock 10 .

[0050] As an improvement of the above device, the dust outlet connecting rod 7 is provided with:

[0051] The second through hole 7-2 of the platform-cut dust outlet connecting rod is provided at one end of the platform-cut dust outlet connecting rod 7, and the platform-cut dust outlet connecting rod 7 is connected to the platform-cut dust outlet 22 through the second through hole 7-2 of the platform-cut dust outlet connecting rod; and

[0052] The first through hole 7-1 of the dust outlet connecting rod is cut, and the dust outlet connecting rod 7 is hinged to the frame 5 through the first through hole 7-1 of the dust outlet connecting rod, and rotates with the hinge axis as the rotation center through the drive of the plate-shaped member 17; wherein,

[0053] The other end of the dust port connecting rod 7 cut out by the platform passes through the fourth through slot 17 - 6 of the plate-like member.

[0054] To achieve another object of the present invention, the present invention further provides a compound saw capable of switching between a bench cutting mode and a bevel cutting mode, including the above-mentioned conversion linkage, comprising:

[0055] a plurality of movable members, each movable member being in a bench cutting position in the bench cutting mode and in a bevel cutting position in the bevel cutting mode; and

[0056] a conversion linkage, operatively connected to the plurality of movable components;

[0057] Among them, one of the multiple movable components is an active component, and the other movable components are driven components. During the process of the active component moving from its table cutting position to the bevel cutting position, the active component drives the conversion linkage to move, and then the conversion linkage drives the driven component to move from its table cutting position to the bevel cutting position.

[0058] As an improvement of the above device, the compound saw comprises:

[0059] a base 23 having a beveling work surface for supporting a workpiece in the beveling mode; and

[0060] a frame 5 for mounting a saw blade, the frame 5 being pivotally connected to the base 23;

[0061] The active component is a mode conversion lock 18; when the mode conversion lock 18 is in the bevel position, it restricts the frame 5 from moving relative to the base 23; when the mode conversion lock 18 is in the bevel position, it allows the frame 5 to pivot relative to the base 23;

[0062] Preferably, the active component is manually operated.

[0063] As an improvement to the above-mentioned device, the driven component includes one or more of the following groups: an upper protective cover lock 2 for locking the upper protective cover 1 when in the bevel position, a bevel conversion table switch lock 10 for blocking the start switch 6-1 when in the bevel position, and a table dust outlet 22 for discharging dust when in the table position.

[0064] As an improvement to the above device, the group further includes: a micro switch baffle for blocking the micro switch of the compound saw when the table is in the cutting position.

[0065] As an improvement to the above device, in the process of moving the active component from its bevel cutting position to the bench cutting position, the active component drives the conversion linkage to move, and then the conversion linkage drives the driven component to move from its bevel cutting position to the bench cutting position.

[0066] As an improvement to the above device, the conversion linkage is a single-piece plate-shaped member 17, which is connected to the mode conversion lock 18 and can be moved between the bevel cutting position and the bench cutting position under the drive of the mode conversion lock 18. The plate-shaped member 17 is connected to the upper protective cover lock 2;

[0067] The compound saw also includes:

[0068] A conversion spring 15, one end of which is connected to the frame 5, and the other end of which is connected to the mode conversion lock 18, wherein the mode conversion lock 18 moves to the bevel position under the pulling force of the conversion spring 15;

[0069] a switch lock second connecting rod 13 , the switch lock second connecting rod 13 being connected to the plate-shaped member 17 ;

[0070] The switch lock first link 8 is connected to the switch lock second link 13 and the switch lock 10 respectively, and the plate-shaped member 17 drives the switch lock 10 by using the switch lock second link 13 and the switch lock first link 8; and

[0071] The platform-cut dust outlet connecting rod 7 is connected to the plate-shaped member 17 and the platform-cut dust outlet 22 respectively. The plate-shaped member 17 drives the platform-cut dust outlet 22 by using the platform-cut dust outlet connecting rod 7.

[0072] As an improvement to the above device, the mode conversion lock 18 is provided with:

[0073] A mode conversion lock first through hole 18 - 1 , through which the mode conversion lock 18 is hinged to the frame 5 , with the hinge axis serving as the rotation center;

[0074] A second through hole 18 - 2 of the mode conversion lock, through which the mode conversion lock 18 is connected to the plate-like member 17 , is used to drive the plate-like member 17 to move between the bevel cutting position and the table cutting position;

[0075] a mode conversion lock fourth through hole 18 - 4 , through which the mode conversion lock 18 is connected to the conversion spring 15 ; and

[0076] A mode conversion lock hook lock 18 - 5 , wherein the mode conversion lock 18 locks the frame 5 to the base 23 through the mode conversion lock hook lock 18 - 5 ;

[0077] Preferably, the plate-shaped member 17 is provided with:

[0078] a first plate-shaped through slot 17 - 1 , through which the plate-shaped member 17 is connected to the upper protective cover lock 2 ;

[0079] a second plate-shaped member through-slot 17 - 2 , through which the plate-shaped member 17 is connected to the second through-hole 18 - 2 of the mode conversion lock 18 ;

[0080] The plate-shaped member has a third through slot 17 - 3 , and the plate-shaped member 17 is connected to the switch lock second connecting rod 13 via the plate-shaped member third through slot 17 - 3 ;

[0081] a plate-like member guide groove 17-4, through which the plate-like member 17 is movably mounted to the frame 5 using a connecting bolt, and whose movement path is restricted by the shape of the plate-like member guide groove 17-4; and

[0082] The plate-shaped member has a fourth through slot 17-6, through which the plate-shaped member 17 is connected to the table-cutting dust outlet connecting rod 7;

[0083] Preferably, the plate-shaped member 17 is further provided with a micro switch baffle 17 - 5 .

[0084] As an improvement of the above device, the upper protective cover lock 2 is provided with:

[0085] The upper protective cover lock second through hole 2-2, the upper protective cover lock 2 is hinged to the frame 5 through the upper protective cover lock second through hole 2-2, and is used to rotate the upper protective cover lock 2 with the hinge axis with the frame 5 as the rotation center, driven by the plate-shaped member 17; and

[0086] The upper guard cover hook lock 2 - 3 is used to lock the upper guard cover 1 in the bevel cutting mode so that the upper guard cover covers the upper side of the saw blade.

[0087] As an improvement to the above device, the switch lock second connecting rod 13 is provided with:

[0088] The switch lock second link first through hole 13-1, the switch lock second link 13 is hinged to the frame 5 through the switch lock second link first through hole 13-1, and rotates with the hinge axis as the rotation center, driven by the plate-shaped member 17;

[0089] a switch lock second link second through hole 13 - 2 , through which the switch lock second link 13 is connected to the switch lock first link 8 ; and

[0090] The switch lock second connecting rod first through slot 13 - 3 , the switch lock second connecting rod 13 is connected to the plate-shaped member 17 through the switch lock second connecting rod first through slot 13 - 3 ;

[0091] The first connecting rod 8 of the switch lock is provided with:

[0092] The first through hole 8-1 of the first connecting rod of the switch lock, the first connecting rod 8 of the switch lock is connected to the second connecting rod 13 of the switch lock through the first through hole 8-1 of the first connecting rod of the switch lock;

[0093] The second through hole 8 - 2 of the first connecting rod of the switch lock and the third through hole 8 - 3 of the first connecting rod of the switch lock are used for installing the switch lock 10 .

[0094] As an improvement of the above device, the dust outlet connecting rod 7 is provided with:

[0095] The second through hole 7-2 of the platform-cut dust outlet connecting rod is provided at one end of the platform-cut dust outlet connecting rod 7, and the platform-cut dust outlet connecting rod 7 is connected to the platform-cut dust outlet 22 through the second through hole 7-2 of the platform-cut dust outlet connecting rod; and

[0096] The first through hole 7-1 of the dust outlet connecting rod is cut, and the dust outlet connecting rod 7 is hinged to the frame 5 through the first through hole 7-1 of the dust outlet connecting rod, and rotates with the hinge axis as the rotation center through the drive of the plate-shaped member 17; wherein,

[0097] The other end of the dust port connecting rod 7 cut out by the platform passes through the fourth through slot 17 - 6 of the plate-like member.

[0098] The conversion linkage for a compound saw and the compound saw having the conversion linkage provided by the present invention can complete the conversion between the table cutting mode and the bevel cutting mode of the compound saw through one operation, and has simple operation and structure, which is conducive to processing and productization. BRIEF DESCRIPTION OF THE DRAWINGS

[0099] FIG1 is an exploded view of a compound saw with a conversion linkage provided by an embodiment of the present invention;

[0100] FIG2 is a first schematic diagram of a compound saw table cutting mode;

[0101] FIG3 is a second schematic diagram of a compound saw table cutting mode;

[0102] FIG4 is a first schematic diagram of a compound saw bevel cutting mode;

[0103] FIG5 is a second schematic diagram of the compound saw bevel cutting mode;

[0104] FIG6 is a perspective view of the plate-like member 17;

[0105] FIG7 is a perspective view of the mode conversion lock 18;

[0106] FIG8 is a perspective view of the upper protective cover lock 2;

[0107] FIG9 is a perspective view of the second link 13 of the switch lock;

[0108] FIG10 is a perspective view of the first connecting rod 8 of the switch lock;

[0109] FIG11 is a schematic diagram of the start switch 6-1;

[0110] FIG12 is a perspective view of the cut dust outlet connecting rod 7. FIG12 is a perspective view of the cut dust outlet connecting rod 7.

[0111] Figure ID

[0112] 1. Upper protective cover 2. Upper protective cover lock 3. Table cutting work board

[0113] 4. Motor assembly 5. Frame 6. Handle assembly

[0114] 6-1 Start switch 7, table cutting dust outlet connecting rod 8, switch lock first connecting rod

[0115] 9. Switch lock fixing rod 10. Switch lock 11. Switch lock torsion spring

[0116] 12. Switch cover 13. Switch lock second link 14. Switch handle

[0117] 15. Conversion spring 16. Handle turning pin 17. Plate-shaped part

[0118] 18. Mode conversion lock 19. Dust cover 20. Conversion fixing pin

[0119] 21. Bevel cut plate 22. Dust outlet 23. Base

[0120] 24. Base assembly 25. Rocker 26. Lower protective cover

[0121] 27. Saw blade assembly 28. Dust bag 29. Miter dust outlet

[0122] 30. Following plate 31. Limiting groove DETAILED DESCRIPTION

[0123] The technical solution provided by the present invention is further illustrated below with reference to embodiments.

[0124] FIG1 illustrates an exploded view of a compound saw with a conversion linkage. As shown in FIG1 , a frame 5 comprising a frame body 5-1 and a frame cover 5-2 can be hingedly connected to a rocker 25. A saw blade assembly 27 and a motor assembly 4 capable of driving the saw blade assembly 27 can be connected to the frame 5. A handle assembly 6 can be connected to the frame 5 and, as shown in FIG11 , the handle assembly 6 can include a start switch 6-1 for controlling the continuous activation or deactivation of the compound saw.

[0125] Figures 2 and 3 illustrate the bench cutting mode of the compound saw. To more clearly illustrate the connection status of the various components of the compound saw in bench cutting mode, Figures 2 and 3 conceal the frame body 5-1 of the frame 5 and the handle assembly 6 except for the start switch 6-1. Figure 3 also conceals the frame cover 5-2 of the frame 5. As shown in Figures 1 and 3, the rocker 25 can be hinged to the base 23, and the bench cutting work plate 3 can be connected to the top surface of the frame 5 and can have a bench cutting work surface that supports a workpiece in bench cutting mode. As shown in Figures 1 and 2, the mode conversion lock 18 can be connected to the frame 5 to lock the frame 5 to the base 23 in bench cutting mode.

[0126] Figures 4 and 5 illustrate the compound saw in miter mode. To more clearly illustrate the connections between the various components of the compound saw in miter mode, Figures 4 and 5 conceal the frame body 5-1, frame cover 5-2, and handle assembly 6, except for the activation switch 6-1. As shown in Figures 1 and 5, the base 23 of the compound saw may include a mitering surface for supporting a workpiece in miter mode. The compound saw may also include a microswitch for activating or deactivating the compound saw in miter mode.

[0127] As can be seen from the above description, the compound saw can be raised or lowered by driving the frame 5 via the handle assembly 6, with the frame 5 and the rocker 25 serving as the pivot axis. The handle assembly 6 can also be used to drive the frame 5 to rotate, with the rocker 25 and the base 23 serving as the pivot axis. The bench cutting work plate 3, which serves as the bench cutting work surface, can move simultaneously with the frame 5.

[0128] When the compound saw is in bench cutting mode, as shown in FIG2 , the mode conversion lock 18 can be located in the mode conversion lock bench cutting locked position that locks the frame 5 to the base 23. The upper guard cover lock 2 can be located in the upper guard cover lock bench cutting unlock position that unlocks the upper guard cover 1, and the upper guard cover 1 can rotate freely. Lifting the upper guard cover 1 can expose the upper portion of the saw blade assembly 27, and the lower guard cover 26 can always cover the lower portion of the saw blade. The switch lock 10 can be located in the switch lock bench cutting unlock position that avoids the start switch 6-1 in bench cutting mode; the operator can control the operation of the saw blade assembly 27 by starting the switch 6-1. The workpiece can be placed on the bench cutting work plate 3 as shown in FIG1 and FIG3 , and the workpiece can be cut by the upper portion of the saw blade assembly 27. Cutting dust can be discharged through the bench cutting dust outlet 22 as shown in FIG1 and FIG3 .

[0129] When the compound saw is in the bevel mode, as shown in FIG4 , the mode shift lock 18 can be in the mode shift lock bevel unlock position, which unlocks the frame 5. The switch lock 10 can be in the switch lock bevel lock position, which blocks the start switch 6-1. As shown in FIG5 , the upper guard cover lock 2 can be in the upper guard cover lock bevel lock position, which locks the upper guard cover 1 to the bench cutting work plate 3. The upper guard cover 1 can cover the upper portion of the saw blade assembly 27. The operator can control the continuous operation of the saw blade assembly 27 through the start switch 6-1, and can also control the operative start of the saw blade assembly 27 through the micro switch. As shown in FIG4 , the workpiece can be placed on the base 23. The operator can use the handle assembly 6 to drive the frame 5 to freely lift, drop, or rotate it, and cut the workpiece through the lower portion of the saw blade assembly 27. Cutting dust can be discharged through the bevel dust outlet.

[0130] In order to make the switching between the miter mode and the bench mode of a compound saw more convenient and quick, the present embodiment discloses a compound saw that can complete the mode switching of the compound saw with only one action. The switching function of the compound saw will be described in detail below with reference to the accompanying drawings.

[0131] Conversion function 1: the frame 5 can be locked to put the compound saw into a bench cutting mode, and the frame 5 can be unlocked to put the compound saw into a bevel cutting mode.

[0132] The conversion linkage may include: a plate-shaped member 17 as shown in FIG6 and a mode conversion lock 18 as shown in FIG7 , wherein the plate-shaped member 17 may be provided with a plate-shaped member second through groove 17-2, which corresponds to the position of the mode conversion lock second through hole 18-2 of the mode conversion lock 18 and may be connected by a rotation pin;

[0133] The mode conversion lock 18 can be provided with a first through hole 18-1 of the mode conversion lock, which is hinged to the frame 5 as shown in Figure 1, and the mode conversion lock 18 can have a hinge axis as the rotation center; the mode conversion lock 18 can be provided with a third through hole 18-3 of the mode conversion lock, as shown in Figure 1, and the conversion handle 14 can be installed through the handle turn pin 16. The mode conversion lock 18 can be provided with a fourth through hole 18-4 of the mode conversion lock, as shown in Figure 2, which can be hooked by one end of the conversion spring 15, and the other end of the conversion spring 15 can be fixed to the limit bolt located in the plate guide groove 17-4; the mode conversion lock 18 can also be provided with a mode conversion lock hook lock 18-5 that cooperates with the base to lock.

[0134] When the compound saw is switched from the beveling mode to the bench cutting mode, the user can rotate the mode switching lock 18 via the switching handle 14. As shown in FIG2 , the mode switching lock hook 18-5 of the mode switching lock 18 can hook onto the switching fixing pin 20 of the base 23, locking the mode switching lock 18 with the base 23, placing the compound saw in the bench cutting mode and positioning the frame 5 in the bench cutting working position. Simultaneously, during the rotation of the mode switching lock 18, the plate member 17 can be driven downward to the plate member bench cutting position.

[0135] When the compound saw is switched from table cutting mode to beveling mode, the user rotates the switching handle 14 to unlock the mode switching lock hook 18-5 from the switching fixing pin 20 of the base 23, placing the compound saw in beveling mode. The frame 5 can be freely raised and lowered, and can also be freely rotated. As shown in FIG4 , the mode switching lock 18 can be rotated under the pull of the switching spring 15, and the mode switching lock hook 18-5 can be engaged with the limiting groove 31 shown in FIG2 , thereby driving the plate member 17 upward to the plate member beveling position.

[0136] In this embodiment, the mode conversion lock 18 is manual, but in other embodiments, the mode conversion lock 18 can be other forms, such as electric.

[0137] In this embodiment, the mode conversion lock 18 can lock the frame 5 by a hook lock. In other embodiments, the mode conversion lock 18 can also lock the frame 5 by other means, such as a clip lock.

[0138] Additionally, in this embodiment, the frame 5 can be locked to the base 23 . In other embodiments, the frame 5 can also be locked to other locations, such as the base assembly 24 .

[0139] Conversion function 2: The upper protective cover 1 can be unlocked in the bench cutting mode and locked in the bevel cutting mode.

[0140] The upper protective cover lock 2 shown in Figure 8 can be provided with an upper protective cover lock first through hole 2-1, which is connected to the plate-like member first through groove 17-1 of the plate-like member 17 shown in Figure 6; the upper protective cover lock 2 can be provided with an upper protective cover lock second through hole 2-2, which is hinged to the frame 5, and the upper protective cover lock 2 can be rotated with the hinge axis of the frame 5 as the rotation center, and is driven by the plate-like member 17; the upper protective cover lock 2 can also be provided with an upper protective cover hook lock 2-3, which is used to cooperate with the upper protective cover 1 to lock.

[0141] As shown in Figure 2, when the plate-like member 17 moves downward to the plate-like member table cutting position, the upper protective cover lock 2 can be driven to move to the upper protective cover lock table cutting unlocking position to unlock the upper protective cover 1, that is, the upper protective cover lock 2 can be rotated in the opening direction away from the upper protective cover lock 2, so that the compound saw is in the table cutting mode, and the upper protective cover hook lock 2-3 is unlocked from the upper protective cover 1.

[0142] As shown in Figure 4, when the plate-like member 17 moves upward to the plate-like member bevel position, the upper protective cover lock 2 can be driven to move from the upper protective cover lock table cutting unlocking position to the upper protective cover lock bevel locking position, that is, it can be rotated toward the opening direction close to the upper protective cover lock 2, so that the compound saw is in the bevel cutting mode and the upper protective cover 1 is locked by the upper protective cover hook lock 2-3.

[0143] In this embodiment, the upper protective cover lock 2 can lock the upper protective cover 1 by a hook lock. In other embodiments, the upper protective cover lock 2 can also lock the upper protective cover 1 by other means.

[0144] In this embodiment, the plate-shaped member 17 can drive the upper protective cover lock 2 when switching between the bevel cutting mode and the bench cutting mode. In other embodiments, the plate-shaped member 17 can also drive the upper protective cover lock 2 when in either mode.

[0145] Conversion function three: the switch lock 10 can be driven to avoid the start switch 6-1 in the table cutting mode, and the switch lock 10 can be driven to block the start switch 6-1 in the bevel cutting mode:

[0146] The plate-shaped member 17 shown in Figure 6 can be provided with a third through slot 17-3 of the plate-shaped member, which corresponds to the position of the first through slot 13-3 of the switch lock second link 13 of the switch lock second link 13 shown in Figure 9, and can be connected by a conversion pin; the switch lock second link 13 can be provided with a first through hole 13-1 of the switch lock second link, which is hinged to the frame 5 through the conversion pin, and the switch lock second link 13 can be rotated with the hinge axis as the rotation center by the drive of the plate-shaped member 17; the switch lock second link 13 can be provided with a second through hole 13-2 of the switch lock second link, which corresponds to the position of the first through hole 8-1 of the switch lock first link 8 of the switch lock first link 8 as shown in Figure 10, and is connected by a conversion pin; the switch lock 10 and the switch lock torsion spring 11 shown in Figure 1 can be located between the second through hole 8-2 of the switch lock first link 8 and the third through hole 8-3 of the switch lock first link, and be connected by the switch lock fixing rod 9.

[0147] As shown in FIG2 , as the plate-like member 17 moves downward to the plate-like member table-cutting position, the shift lever connected to the plate-like member's third through-slot 17-3 can slide within the switch lock second link's first through-slot 13-3 toward the switch lock second link's first through-hole 13-1, thereby rotating the switch lock second link 13 and driving the switch lock first link 8 toward the rocker 25. The switch lock first link 8 can drive the switch lock 10 toward the rocker 25, allowing the switch lock 10 to abut the start switch 6-1. As the switch lock 10 moves toward the rocker 25 to the switch lock table-cutting unlocking position, it resists the torsional force of the switch lock torsion spring 11, exposing the start switch 6-1. This ensures that the switch lock 10 is clear of the start switch 6-1 when the compound saw is in the table-cutting mode.

[0148] As shown in FIG4 , as the plate-like member 17 moves upward to the plate-like member beveling position, the shift lever connected to the plate-like member's third through-slot 17-3 can slide within the switch lock second link's first through-slot 13-3 in a direction away from the switch lock second link's first through-hole 13-1, thereby rotating the switch lock second link 13 and driving the switch lock first link 8 away from the rocker 25. The switch lock first link 8 can drive the switch lock 10 away from the rocker 25 to the switch lock beveling locked position. Under the torsional force of the switch lock torsion spring 11, the switch lock 10 can block the start switch 6-1, thereby ensuring that the switch lock 10 blocks the start switch 6-1 when the compound saw is in the beveling mode.

[0149] In this embodiment, the plate-shaped member 17 can drive the switch lock 10 when switching between the bevel cutting mode and the bench cutting mode. In other embodiments, the plate-shaped member 17 can also drive the switch lock 10 when in either mode.

[0150] Conversion function four: in the table cutting mode, the table cutting dust outlet 22 can be pushed out to extend outside the frame 5 , and in the bevel cutting mode, the table cutting dust outlet 22 can be pulled back to be located inside the frame 5 .

[0151] As shown in Figure 12, one end of the table-cut dust outlet connecting rod 7 can be provided with a table-cut dust outlet connecting rod second through hole 7-2 for connecting with the table-cut dust outlet 22, and the other end can pass through the plate-like member fourth through groove 17-6 of the plate-like member 17 as shown in Figure 6; the table-cut dust outlet connecting rod 7 can also be provided with a table-cut dust outlet connecting rod first through hole 7-1 for hinged connection with the frame 5, and the table-cut dust outlet connecting rod 7 can be rotated with the hinge axis as the rotation center through the transmission of the plate-like member 17; as shown in Figure 1, the table-cut dust outlet 22 can be embedded in the frame 5 and can also be connected to the table-cut dust guide cover 19.

[0152] As shown in Figure 3, when the plate-like member 17 moves downward to the plate-like member table cutting position, the table cutting dust outlet 22 can be pushed toward the outside of the frame 5 by the table cutting dust outlet connecting rod 7, so that when the compound saw is in the table cutting mode, a part of the table cutting dust outlet 22 can extend out of the frame 5 for installing the table cutting dust bag. The table cutting dust outlet 22 can serve as a channel between the table cutting dust guide cover 19 and the table cutting dust bag.

[0153] As shown in FIG5 , as the plate-like member 17 moves upward to the plate-like beveling position, the beveling dust outlet 22 can be pulled toward the interior of the frame 5 by the beveling dust outlet connecting rod 7. This allows the beveling dust outlet 22 to be completely positioned within the frame 5 when the compound saw is in beveling mode. Positioning the beveling dust outlet 22 within the frame 5 in beveling mode prevents dust generated during beveling from entering the beveling dust outlet 22 and, subsequently, entering the frame 5. This not only ensures the internal cleanliness of the compound saw, but also ensures that dust generated during beveling is primarily discharged through the beveling dust outlet 29, making dust collection easier for the user.

[0154] In this embodiment, the plate-shaped member 17 can drive the table cutting dust outlet 22 when switching between the bevel cutting mode and the table cutting mode. In other embodiments, the plate-shaped member 17 can also drive the table cutting dust outlet 22 in either mode.

[0155] Conversion function five: The micro switch can be locked in table cutting mode and unlocked in bevel cutting mode.

[0156] The plate-shaped member 17 shown in FIG6 may be provided with a micro switch baffle 17 - 5 , which may be moved close to the micro switch to lock the micro switch; when the compound saw is switched from the table cutting mode to the miter cutting mode, the micro switch baffle 17 - 5 may be moved away from the micro switch to unlock the micro switch.

[0157] During the process of the plate-like member 17 moving downward to the plate-like member table cutting position, that is, when the compound saw is switched from the bevel cutting mode to the table cutting mode, the microswitch baffle 17-5 can be close to the microswitch, so that the distance between the microswitch baffle 17-5 and the microswitch is less than the distance of one finger, and the user's finger cannot be inserted into the space, thereby locking the microswitch.

[0158] During the upward movement of the plate-like member 17 to the plate-like member bevel cutting position, i.e., when the compound saw switches from the bench cutting mode to the bevel cutting mode, the microswitch retainer 17-5 can move away from the microswitch. This allows the distance between the microswitch retainer 17-5 and the microswitch to be greater than or equal to the distance of a finger, allowing the user's finger to enter this space and operate the microswitch. Consequently, the microswitch is unlocked.

[0159] In this embodiment, the micro switch baffle 17 - 5 can be set on the plate-shaped member 17 . In other embodiments, the micro switch baffle 17 - 5 can also be an independent structure and can be driven by the plate-shaped member 17 .

[0160] In this embodiment, the plate-shaped member 17 can drive the micro switch baffle 17-5 when switching between the bevel cutting mode and the table cutting mode. In other embodiments, the plate-shaped member 17 can also drive the micro switch baffle 17-5 in one of the modes.

[0161] It is worth noting that the above embodiment only illustrates the mode conversion lock 18 as the active component. In other embodiments, other movable components may also serve as active components. The above embodiment only illustrates the active component driving all the driven components to perform conversion. In other embodiments, the active component may only drive one or more driven components to perform conversion, that is, only implement one or more of the above-mentioned conversion functions.

[0162] In addition, directional terms such as "front," "back," "up," "down," "left," "right," "side," "top," and "bottom" are used in the specification and claims of the present invention to describe various exemplary structural parts and elements of the present invention. However, these terms are used herein for convenience of description only and are based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different orientations, these directional terms are intended for illustrative purposes only and should not be construed as limiting. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0163] From the above specific description of the present invention, it can be seen that:

[0164] 1. The conversion linkage for a compound saw provided by the present invention can be completed by a single operation when switching from a bevel cutting mode to a bench cutting mode: ① the frame 5 can be locked with the base 23, so that the saw blade assembly 27 mounted on the frame 5 is in the bench cutting working position; ② the upper guard cover lock 2 can be actuated to unlock it from the upper guard cover 1; ③ the switch lock 10 can be actuated to move the switch lock 10 away from the start switch 6-1; ④ the bench cutting dust outlet 22 can be pushed out of the frame 5 for installation of a dust bag 28; and ⑤ the micro switch can be locked.

[0165] 2. The conversion linkage for a compound saw provided by the present invention can be completed by a single operation when switching from a bench cutting mode to a bevel cutting mode: ① the frame 5 and the base 23 can be unlocked, so that the saw blade assembly 27 installed on the frame 5 can be lifted, dropped or rotated along with the frame 5; ② the upper protective cover lock 2 can be driven to lock it with the upper protective cover 1; ③ the switch lock 10 can be driven to block the start switch 6-1; ④ the bench cutting dust outlet 22 can be pulled back so that it is located inside the frame 5; ⑤ the micro switch can be unlocked.

[0166] 3. The conversion linkage member for a compound saw provided by the present invention is simple to operate and has a simple structure, and is easy to process and commercialize.

[0167] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions to the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and are intended to be encompassed by the claims of the present invention.

Claims

1. A conversion linkage for a compound saw, capable of quickly switching the compound saw between a bench cutting mode and a bevel cutting mode; The compound saw includes a plurality of movable components, each movable component being in a bench cutting position in the bench cutting mode and in a bevel cutting position in the bevel cutting mode; The conversion linkage is operably connected to the plurality of movable components respectively; in, One of the multiple movable components is an active component, and the other movable components are driven components. During the process of the active component moving from its bench cutting position to the bevel cutting position, the active component drives the conversion linkage to move, and then the conversion linkage drives the driven component to move from its bench cutting position to the bevel cutting position.

2. The conversion linkage for a compound saw according to claim 1, characterized in that: The compound saw comprises: a base (23) having a beveling work surface for supporting a workpiece in the beveling mode; and a frame (5) for mounting a saw blade, the frame (5) being pivotally connected to the base (23); The active component is a mode conversion lock (18); when the mode conversion lock (18) is in a bevel position, it restricts the frame (5) from moving relative to the base (23); when the mode conversion lock (18) is in a bevel position, it allows the frame (5) to pivot relative to the base (23); Preferably, the active component is manually operated.

3. The conversion linkage for a compound saw according to any one of claims 1 to 2, characterized in that: The driven component includes one or more of the following groups: an upper protective cover lock (2) for locking the upper protective cover (1) when in the bevel position, a bevel conversion table switch lock (10) for blocking the start switch (6-1) when in the bevel position, and a table dust outlet (22) for discharging dust when in the table position; Preferably, the group further comprises: a micro switch baffle for blocking the micro switch of the compound saw in the table cutting position.

4. The conversion linkage for a compound saw according to any one of claims 1 to 3, characterized in that: In the process of moving the active component from the bevel position to the bench position, the active component drives the conversion linkage to move, and then the conversion linkage drives the driven component to move from the bevel position to the bench position.

5. The conversion linkage for a compound saw according to any one of claims 1 to 4, characterized in that: The conversion linkage comprises: a single-piece plate-like member (17), the plate-like member (17) being connected to the mode conversion lock (18) and being movable between a bevel cutting position and a bench cutting position under the drive of the mode conversion lock (18), the plate-like member (17) being connected to the upper protective cover lock (2); a conversion spring (15), one end of the conversion spring (15) being connected to the frame (5), and the other end of the conversion spring (15) being connected to the mode conversion lock (18), and the mode conversion lock (18) being moved to the bevel position under the pulling force of the conversion spring (15); a switch lock second connecting rod (13), wherein the switch lock second connecting rod (13) is connected to the plate-shaped member (17); a switch lock first connecting rod (8), the switch lock first connecting rod (8) being connected to the switch lock second connecting rod (13) and the switch lock (10) respectively, the plate-shaped member (17) driving the switch lock (10) by means of the switch lock second connecting rod (13) and the switch lock first connecting rod (8); and A table-cut dust outlet connecting rod (7), wherein the table-cut dust outlet connecting rod (7) is respectively connected to the plate-shaped member (17) and the table-cut dust outlet (22), and the plate-shaped member (17) drives the table-cut dust outlet (22) by means of the table-cut dust outlet connecting rod (7).

6. The conversion linkage for a compound saw according to any one of claims 1 to 5, characterized in that: The mode conversion lock (18) is provided with: A first through hole (18-1) of a mode conversion lock, wherein the mode conversion lock (18) is hinged to the frame (5) through the first through hole (18-1) of the mode conversion lock, and the hinge axis is used as a rotation center; a second through hole (18-2) of the mode conversion lock, wherein the mode conversion lock (18) is connected to the plate-like member (17) through the second through hole (18-2) of the mode conversion lock, and is used to drive the plate-like member (17) to move between a bevel cutting position and a table cutting position; a fourth through hole (18-4) of a mode conversion lock, wherein the mode conversion lock (18) is connected to the conversion spring (15) through the fourth through hole (18-4) of the mode conversion lock; and A mode conversion lock hook lock (18-5), wherein the mode conversion lock (18) locks the frame (5) to the base (23) via the mode conversion lock hook lock (18-5); Preferably, the plate-like member (17) is provided with: A first through slot (17-1) of a plate-shaped member, wherein the plate-shaped member (17) is connected to the upper protective cover lock (2) via the first through slot (17-1) of the plate-shaped member; a second plate-shaped member through-slot (17-2), wherein the plate-shaped member (17) is connected to the mode conversion lock second through-hole (18-2) of the mode conversion lock (18) via the second plate-shaped member through-slot (17-2); A third through slot (17-3) of the plate-shaped member, wherein the plate-shaped member (17) is connected to the second connecting rod (13) of the switch lock via the third through slot (17-3) of the plate-shaped member; A plate-shaped member guide groove (17-4), wherein the plate-shaped member (17) is movably mounted to the frame (5) by means of a connecting bolt through the plate-shaped member guide groove (17-4), and its moving route is limited by the shape of the plate-shaped member guide groove (17-4); and A fourth through slot (17-6) of the plate-shaped member, the plate-shaped member (17) being connected to the table-cut dust outlet connecting rod (7) via the fourth through slot (17-6) of the plate-shaped member; Preferably, the plate-shaped member (17) is further provided with a micro switch baffle (17-5).

7. The conversion linkage for a compound saw according to any one of claims 1 to 6, characterized in that: The upper protective cover lock (2) is provided with: an upper protective cover lock second through hole (2-2), the upper protective cover lock (2) being hinged to the frame (5) through the upper protective cover lock second through hole (2-2), and being used for causing the upper protective cover lock (2) to rotate with the hinge axis with the frame (5) as the rotation center, driven by the plate-shaped member (17); and The upper guard cover hook lock (2-3) is used to lock the upper guard cover (1) in the bevel cutting mode so that the upper guard cover covers the upper side of the saw blade.

8. The conversion linkage for a compound saw according to any one of claims 1 to 7, characterized in that: The switch lock second connecting rod (13) is provided with: a first through hole (13-1) of the second connecting rod of the switch lock, wherein the second connecting rod (13) of the switch lock is hinged to the frame (5) through the first through hole (13-1) of the second connecting rod of the switch lock, and rotates with the hinge axis as the rotation center through the drive of the plate-shaped member (17); a second through hole (13-2) of the second connecting rod of the switch lock, wherein the second connecting rod (13) of the switch lock is connected to the first connecting rod (8) of the switch lock through the second through hole (13-2) of the second connecting rod of the switch lock; and a first through slot (13-3) of the second connecting rod of the switch lock, wherein the second connecting rod (13) of the switch lock is connected to the plate-shaped member (17) via the first through slot (13-3) of the second connecting rod of the switch lock; The switch lock first connecting rod (8) is provided with: a first through hole (8-1) of a first connecting rod of a switch lock, wherein the first connecting rod (8) of the switch lock is connected to the second connecting rod (13) of the switch lock via the first through hole (8-1) of the first connecting rod of the switch lock; The second through hole (8-2) of the first connecting rod of the switch lock and the third through hole (8-3) of the first connecting rod of the switch lock are used for installing the switch lock (10).

9. The conversion linkage for a compound saw according to any one of claims 1 to 8, characterized in that: The table-cut dust outlet connecting rod (7) is provided with: The second through hole (7-2) of the platform-cut dust outlet connecting rod is arranged at one end of the platform-cut dust outlet connecting rod (7), and the platform-cut dust outlet connecting rod (7) passes through the platform-cut dust outlet The second through hole (7-2) of the connecting rod is connected to the table cutter dust outlet (22); and The first through hole (7-1) of the platform-cut dust outlet connecting rod is hinged to the frame (5) through the first through hole (7-1) of the platform-cut dust outlet connecting rod, and rotates with the hinge axis as the rotation center through the drive of the plate-shaped member (17); wherein, The other end of the table-cut dust outlet connecting rod (7) passes through the fourth through slot (17-6) of the plate-shaped member.

10. A compound saw comprising the conversion linkage member according to any one of claims 1 to 9.

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