Table saw with sliding carriage

Abstract

The utility model discloses a table type cutting saw with sliding support, including base and be used for cutting saw machine, and saw machine can swing upwards and lift or swing downwards and cut relative to base, and saw machine includes the saw blade that can rotate around the saw blade axle and the motor of driving saw blade axle rotation, and the cutting groove that is inserted when the saw blade swings downwards and extends longitudinally is set up on the base, and the bottom of base is set up and the accommodating groove of opening downward, and the sliding hole and the sliding rod that are installed in sliding hole and can slide longitudinally relative to base are arranged in accommodating groove, and the sliding support is installed on sliding rod, and saw machine is rotatably connected on sliding support, and can move with sliding support relative to base, and the elastic member that drives sliding rod, sliding support and saw machine to move reset is arranged between sliding rod and base or between sliding support and base, and the cutting range of saw machine is increased by setting up saw machine to move relative to base in this patent.

Description

Technical Field

[0001] This utility model relates to a tabletop cutting device, and more particularly to a tabletop cutting saw with a sliding support. Background Technology

[0002] Tabletop cutting saws are widely used to cut various metal pipes, angle steel, channel steel and various stone slabs. They mainly consist of a base and a saw that is rotatably mounted on the base. The saw cuts off blocks of material from the workpiece placed on the base by swinging up and down around a pivot point.

[0003] For example, the cutting saw disclosed in patent CN1204992C includes a base device; an arm rotatably connected to the base device; and a blade device supported by the arm. The blade device includes a blade having a center and a rotation axis and a motor for driving the blade, and can move between a lower position that contacts and cuts a workpiece placed on the base device and an upper position that does not contact the workpiece.

[0004] In existing benchtop cutting saws, the saw mounted on the base can only cut the workpiece placed on the base by swinging up and down relative to the base. The cutting range is limited. If the workpiece to be cut is wide, the downward swing of the saw may not be able to completely cut the workpiece. Utility Model Content

[0005] The saw based on the above table-type cutting saw can only swing up and down relative to the base to cut the workpiece placed on the base, and the cutting range is limited. If the width of the workpiece to be cut is wide, the downward swing of the saw may not be able to completely cut the workpiece. This utility model provides a table-type cutting saw with a sliding bracket.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a table-type cutting saw with a sliding bracket, including a base and a saw for cutting. The saw can swing upward or downward relative to the base to cut. The saw includes a saw blade that can rotate around the saw blade axis and a motor that drives the saw blade axis to rotate. A cutting groove that extends longitudinally is provided on the base for the saw blade to be inserted when it swings downward. A receiving groove with an opening facing downward is provided at the bottom of the base. A sliding hole and a sliding rod that is installed in the sliding hole and can slide longitudinally relative to the base are provided in the receiving groove. A sliding bracket is installed on the sliding rod. The saw is rotatably connected to the sliding bracket and can move relative to the base together with the sliding bracket. An elastic element is provided between the sliding rod and the base or between the sliding bracket and the base to drive the sliding rod, the sliding bracket and the saw to move and reset.

[0007] A further preferred embodiment of this utility model is as follows: the sliding bracket is installed on one end of the slide rod, and a connecting piece is fixedly installed on the other end of the slide rod. A first connecting part is provided in the receiving groove. A longitudinal extension piece is provided on the connecting piece, extending longitudinally to the side away from the first connecting part. The elastic element is a tension spring, which is disposed in the receiving groove. One end of the tension spring is connected to the first connecting part, and the other end of the tension spring is connected to the end of the longitudinal extension piece away from the first connecting part.

[0008] A further preferred embodiment of this utility model is as follows: the base is provided with downwardly extending sidewalls around its perimeter, the sidewalls enclosing the bottom of the base to form the receiving groove, and a notch groove communicating with the receiving groove is provided on one side of the sidewall of the base, the lower end of the sliding bracket is accommodated in the notch groove and fixedly connected to one end of the sliding rod.

[0009] A further preferred embodiment of this utility model is as follows: the sliding bracket includes a middle plate located above the base, a lower arm fixed to the bottom of the middle plate and placed in a notch, and an upper arm fixed to the top of the middle plate. One end of the sliding rod is fixedly connected to the lower arm, and the saw is rotatably mounted on the upper arm.

[0010] A further preferred embodiment of this utility model is as follows: a slot is provided on the lower arm, and one end of the slide rod is inserted into the slot and fixedly connected to the lower arm by screws.

[0011] A further preferred embodiment of this utility model is as follows: the saw is provided with an extended connecting arm, the upper arm includes two side plates, and a space is formed between the two side plates for the connecting arm to be inserted. The connecting arm is inserted between the two side plates and is rotatably connected to the two side plates via a pivot.

[0012] A further preferred embodiment of this utility model is as follows: a rotary locking mechanism for locking the saw machine relative to the base is provided between the upper arm and the connecting arm. The rotary locking mechanism includes a locking pin on one side plate. A first locking groove is provided on the connecting arm to cooperate with the locking pin. The locking pin can move relative to the side plate to engage or disengage with the first locking groove. A locking protrusion is provided on the outer circumference of the locking pin. A high position and a low position are provided on the side plate to cooperate with the locking protrusion. A first spring is provided between the locking pin and the side plate to drive the locking pin to move so that the locking protrusion abuts against the corresponding high or low position. The locking pin can rotate around its own axis to switch the locking protrusion between the position opposite to the high position and the position opposite to the low position. When the locking pin rotates to the point where the locking protrusion is opposite to the low position and abuts, the locking pin is inserted into the first locking groove and engages with the first locking groove. When the locking pin rotates to the point where the locking protrusion is opposite to the high position and abuts, the locking pin disengages from the first locking groove.

[0013] A further preferred technical solution of this utility model is as follows: a movable locking mechanism is provided between the intermediate plate and the base, which allows the locking sliding bracket to move relative to the base. The movable locking mechanism includes a locking bolt. A threaded hole is provided on the intermediate plate, and the locking bolt is connected in the threaded hole. A second locking groove is provided on the base corresponding to the threaded hole below. The locking bolt can be screwed down along the thread in the threaded hole to engage with the second locking groove or screwed up to separate from the second locking groove.

[0014] A further preferred embodiment of this utility model is: a slide block is detachably installed in the accommodating groove, and a sliding hole is provided on the slide block for the slide rod to pass through.

[0015] A further preferred technical solution of this utility model is as follows: two limiting parts are provided between the two side plates, and a mating part is provided on the connecting arm extending out and located between the two limiting parts. The mating part moves between the two limiting parts to limit the maximum angle of the saw swinging up or down.

[0016] Compared with the prior art, the advantages of this utility model are that a sliding hole and a sliding rod installed in the sliding hole and capable of sliding longitudinally relative to the base are provided in the receiving groove at the bottom of the base. A sliding bracket is installed on the sliding rod, and the saw is rotatably connected to the sliding bracket. The saw and the sliding bracket can move relative to the base through the sliding engagement of the sliding rod and the sliding hole. Furthermore, an elastic element is provided between the sliding rod and the base or between the sliding bracket and the base to drive the sliding rod, the sliding bracket, and the saw to move and reset. Setting the saw on the sliding bracket that can slide relative to the base increases the cutting range of the saw. When the width of the workpiece to be cut is wide, after the saw swings down to cut, it can still move longitudinally relative to the base through the sliding engagement of the sliding rod and the sliding hole to completely cut the workpiece. The elastic element is provided to drive the sliding bracket and the saw to automatically return to their original positions, making the return of the sliding bracket and the saw easier. In addition, setting the sliding hole and the sliding rod in the receiving groove at the bottom of the base is more aesthetically pleasing, and during the cutting process, debris and other debris are less likely to enter between the sliding hole and the sliding rod and affect the sliding. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of the saw when it is in its initial position. Figure 2 This is a schematic diagram of the overall structure of the saw after longitudinal movement. Figure 3This is a schematic diagram showing the separation of the saw and the sliding support; Figure 4 This is a structural diagram of the base and sliding support; Figure 5 A cross-sectional schematic diagram of the rotary locking mechanism; Figure 6 for Figure 5 A magnified view of part A; Figure 7 A cross-sectional schematic diagram of the movable locking mechanism; Figure 8 for Figure 7 A magnified view of section B; Figure 9 This is a longitudinal sectional view of the base, slide bar, slide block, and sliding support. Figure 10 A schematic diagram of the base bottom when the sliding bracket is mounted on the sliding rod; Figure 11 This is a schematic diagram of the bottom of the base after the sliding bracket has been removed. Figure 12 This is a schematic diagram showing the separation of the slide and the bottom of the base.

[0019] In the diagram: 1. Saw; 2. Base; 3. Cutting groove; 4. Sliding bracket; 5. Saw blade; 6. Slide rod; 7. Notch; 8. Middle plate; 9. Lower arm; 10. Upper arm; 11. Connecting arm; 12. First locking groove; 13. Housing; 14. Side plate; 15. Pivot; 16. Slide block; 17. Sliding hole; 18. Protrusion; 19. Round tube; 20. Snap-fit ​​protrusion; 21. Locking pin; 22. Groove; 23. Limiting retaining ring; 24. Head; 25. Pin hole; 26. Second locking groove; 27. Threaded hole; 28. Locking bolt; 29. ​​Receiving groove; 30. Connecting piece; 31. Slot; 32. Side wall; 33. Connecting bolt; 34. Tension spring; 35. Longitudinal extension piece; 36. Limiting bolt; 37. Mating part. Detailed Implementation

[0020] 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.

[0021] 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.

[0022] Figures 1-12As shown, a table saw with a sliding support includes a base 2 and a saw 1 for cutting. The saw 1 can swing upwards relative to the base 2 to lift or downwards to cut. The saw 1 includes a housing 13, a saw blade shaft mounted on the housing 13, a motor mounted on the housing 13 for driving the saw blade shaft to rotate, and a saw blade 5 driven to rotate by the saw blade shaft. The base 2 has a longitudinally extending cutting groove 3 for the saw blade 5 to be inserted when it swings downwards. The workpiece to be cut is placed on the top of the base 2, and then the saw blade 5 cuts the workpiece and inserts it into the cutting groove 3 when the saw 1 swings downwards. A battery pack can also be installed on the housing 13 for power supply.

[0023] Figures 9-12 As shown, the bottom of the base 2 has a downward-facing receiving groove 29. The receiving groove 29 has a sliding hole 17 and a sliding rod 6 that is installed in the sliding hole 17 and can slide longitudinally relative to the base 2. A sliding bracket 4 is fixedly installed on the sliding rod 6. The saw 1 is rotatably connected to the sliding bracket 4. The saw 1 and the sliding bracket 4 can move longitudinally relative to the base 2 through the sliding of the sliding rod 6 along the sliding hole 17, so that the saw blade 5 can move longitudinally along the cutting groove 3 to cut. An elastic element is provided between the sliding rod 6 and the base 2 or between the sliding bracket 4 and the base 2 to drive the sliding rod 6, the sliding bracket 4 and the saw 1 to move and reset.

[0024] The saw 1 is mounted on a sliding bracket 4 that can slide relative to the base 2 to increase the cutting range of the saw 1. When the width of the workpiece to be cut is wide, after the saw 1 swings down to cut, it can also move longitudinally relative to the base 2 through the sliding cooperation of the slide rod 6 and the slide hole 17 to completely cut the workpiece. An elastic element is set to drive the sliding bracket 4 and the saw 1 to return automatically, making the return of the sliding bracket 4 and the saw 1 easier. In addition, the slide hole 17 and the slide rod 6 are set in the receiving groove 29 at the bottom of the base 2, which is more aesthetically pleasing, and during the cutting process, debris and other debris are less likely to enter between the slide hole 17 and the slide rod 6 and affect the sliding.

[0025] The sliding bracket 4 is located on one side of the base 2 and is fixedly connected to one end of the slide rod 6. The base 2 has downwardly extending side walls 32 around its perimeter. The side walls 32 enclose the bottom of the base 2 to form a receiving groove 29. A notch 7 communicating with the receiving groove 29 is opened on one side of the side wall 32 of the base 2. The notch 7 is opposite to one end of the sliding hole 17. The lower end of the sliding bracket 4 is received in the notch 7 and is fixedly connected to one end of the slide rod 6.

[0026] Figure 4 As shown, the sliding bracket 4 includes an intermediate plate 8 located above the base 2, a lower arm 9 fixed to the bottom of the intermediate plate 8 and placed in the notch 7, and an upper arm 10 fixed to the top of the intermediate plate 8. One end of the sliding rod 6 is fixedly connected to the lower arm 9, and the saw 1 is rotatably mounted on the upper arm 10.

[0027] Figure 1 , Figure 2As shown, in the initial position, the lower arm 9 is pressed against the inner wall of the notch 7 by the action of the elastic element. When the saw 1 is moved longitudinally to cut, the lower arm 9 gradually moves outward from the notch 7.

[0028] A slot 31 is provided on the lower arm 9. One end of the slide rod 6 is inserted into the slot 31 and fixed to the lower arm 9 by screws. The insertion of the slide rod 6 into the slot 31 facilitates the assembly of the slide rod 6 and the sliding bracket 4, and also makes the connection between the two more stable.

[0029] Figures 3-5 As shown, the saw 1 is provided with an extended connecting arm 11. The upper arm 10 includes two side plates 14. A space is formed between the two side plates 14 for the connecting arm 11 to be inserted. The connecting arm 11 is inserted between the two side plates 14 and is rotatably connected to the two side plates 14 through a pivot 15 so that the saw 1 and the sliding bracket 4 are rotatably connected together.

[0030] Figure 9 As shown, two limiting parts are provided between the two side plates 14, and a cooperating part 37 is provided on the connecting arm 11 extending out and located between the two limiting parts. The cooperating part 37 moves between the two limiting parts to limit the maximum angle of the saw 1 swinging up or down, so as to prevent the saw 1 from being lifted too high or swinging directly upward to fall backward, and also to prevent the saw 1 from hitting the base 2 directly when swinging down, thus improving safety.

[0031] The two limiting parts are limiting bolts 36 threadedly connected to the upper arm 10.

[0032] Figure 6 As shown, a rotary locking mechanism for locking the saw 1 relative to the base is provided between the upper arm 10 and the connecting arm 11. The rotary locking mechanism includes a locking pin 21 provided on one side plate 14. The connecting arm 11 has a first locking groove 12 that cooperates with the locking pin 21. The locking pin 21 can move relative to the side plate 14 to engage or disengage with the first locking groove 12. The outer circumferential surface of the locking pin 21 has a radially outward protruding engagement protrusion 20. The side plate 14 has a high position and a low position that cooperate with the engagement protrusion 20. The locking pin 21 and the side plate... A first spring is provided between 14 to drive the locking pin 21 to move so that the engaging protrusion 20 abuts against the relative high or low position. The locking pin 21 can rotate around its own axis to switch the engaging protrusion 20 between the position opposite to the high position and the position opposite to the low position. When the locking pin 21 rotates to the position where the engaging protrusion 20 is opposite to the low position and abuts, the locking pin 21 is inserted into the first locking groove 12 and engages with the first locking groove 12. When the locking pin 21 rotates to the position where the engaging protrusion 20 is opposite to the high position and abuts, the locking pin 21 is separated from the first locking groove 12.

[0033] A circular tube 19 protrudes from the outer wall of the side plate 14. The inside of the circular tube 19 has a pin hole 25 communicating with the inner wall of the side plate 14. One end of the locking pin 21 is inserted into the pin hole 25 from the outside. A head 24 is provided on the end of the locking pin 21 inserted into the pin hole 25. A connecting groove is provided on the outer end of the pin hole 25. A limiting ring 23 is detachably mounted in the connecting groove. The limiting ring 23 is sleeved on the outside of the locking pin 21. The inner diameter of the limiting ring 23 is smaller than the outer diameter of the locking head 24. A first spring is sleeved on the locking pin 21 and supported by the head 24 and the limiting ring. Between the retaining rings 23, the locking pin 21 is pushed to move inward. The two sides of the round tube 19 are provided with protrusions 18 protruding from the outer end face of the round tube 19. The outer end face of the protrusion 18 is the high position, and the outer end face of the round tube 19 between the two protrusions 18 is the low position. The outer end face of the protrusion 18 is provided with a groove 22 for locking the locking protrusion 20 to restrict the locking protrusion 20 from moving from the high position to the low position. The two sides of the locking pin 21 are provided with locking protrusions 20 corresponding to the two protrusions 18. The locking protrusion 20 is formed by inserting a pin into the locking pin 21.

[0034] In the separated state, the head 24 disengages from the first locking groove 12, and the locking protrusions 20 on both sides of the locking pin 21 fall into the grooves 22 of the two protrusions 18 respectively. At this time, the user can control the saw 1 to swing up or down. When it is necessary to lock the rotation of the saw 1, move the locking pin 21 outward to disengage the locking protrusions 20 from the grooves 22, rotate the locking pin 21 to rotate the locking protrusions 20 from the position opposite to the protrusions 18 to the position opposite to the outer end face of the round tube 19 between the two protrusions 18, release the hand holding the locking pin 21, and the locking pin 21 is pushed inward by the first spring so that the head 24 is inserted into the first locking groove 12 and engages with the first locking groove 12. The locking protrusions 20 abut against the outer end face of the round tube 19, and the head 24 is inserted into the first locking groove 12 to lock the relative rotation of the sliding bracket 4 and the saw 1.

[0035] When the saw machine 1 is in the rotating locked state, the saw blade 5 is inserted into the cutting groove 3.

[0036] Figure 7 , Figure 8 As shown, a movable locking mechanism is provided between the intermediate plate 8 and the base 2, which allows the locking sliding bracket 4 to move relative to the base 2. The movable locking mechanism includes a locking bolt 28. A threaded hole 27 is provided on the intermediate plate 8, and the locking bolt 28 is connected in the threaded hole 27. A second locking groove 26 is provided on the base 2, which is located below the threaded hole 27. The locking bolt 28 can be screwed down along the thread in the threaded hole 27 to engage with the second locking groove 26 or screwed up to separate from the second locking groove 26.

[0037] When the elastic element drives the slide bar 6, the sliding bracket 4, and the saw 1 to move and reset to the initial position, the second locking groove 26 is opposite to the threaded hole 27 and is located below the threaded hole 27. At this time, by turning down along the thread inside the threaded hole 27, the locking bolt 28 can be inserted into the second locking groove 26 to lock the movement of the sliding bracket 4 relative to the base 2. When the saw 1 needs to be moved for cutting, the locking bolt 28 is turned up along the thread inside the threaded hole 27 to move the locking bolt 28 out of the second locking groove 26. At this time, the sliding bracket 4 and the saw 1 can move relative to the base 2.

[0038] Figure 11 , Figure 12 As shown, a connecting piece 30 is fixedly mounted on the end of the slide rod 6 away from the sliding bracket 4. A first connecting part is provided in the receiving groove 29. The connecting piece 30 has a longitudinal extension piece 35 extending longitudinally away from the first connecting part. The elastic element is a tension spring 34, which is disposed in the receiving groove 29. One end of the tension spring 34 is connected to the first connecting part, and the other end of the tension spring 34 is connected to the end of the longitudinal extension piece 35 away from the first connecting part. By extending the longitudinal extension piece 35 longitudinally away from the first connecting part, the spacing for mounting the tension spring 34 is increased, allowing for a greater number of spring coils in the tension spring 34, thus enabling the tension spring 34 to have a greater elastic elongation to meet the movement of the slide rod 6. The connecting piece 30 can block one side of the sliding hole 17 to prevent the slide rod 6 from disengaging from the sliding hole 17. The connecting piece 30 is fixedly connected to the slide rod 6 by screws.

[0039] The first connecting part is a connecting bolt 33 fixed in the receiving groove 29. A connecting hole is provided on the longitudinal extension piece 35. One end of the tension spring 34 is hooked on the connecting bolt 33, and the other end of the tension spring 34 is hooked on the connecting hole.

[0040] A slide block 16 is detachably installed within the receiving groove 29. The slide block 16 has a sliding hole 17 for the slide rod 6 to pass through. The detachable slide block 16 allows the slide rod 6, slide block 16, and sliding bracket 4 to be assembled first, and then the slide block 16 can be installed upwards into the receiving groove 29, facilitating the installation of the slide rod 6, slide block 16, and sliding bracket 4. The slide block 16 is fixedly connected to the bottom of the base 2 by screws.

[0041] The slide block 16 has two sliding holes 17, and a slide rod 6 is slidably installed in each of the two sliding holes 17. The lower arm 9 is connected to one end of the two slide rods 6.

[0042] The table-top cutting saw with a sliding bracket 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 embodiments above 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 benchtop cutting saw with a sliding support, comprising a base and a saw for cutting, the saw being capable of swinging upwards relative to the base to lift or downwards to cut, the saw including a saw blade rotatable about a saw blade axis and a motor driving the saw blade axis to rotate, the base having a longitudinally extending cutting groove for the saw blade to be inserted when swinging downwards, characterized in that, The base has a downward-facing receiving groove at its bottom. The receiving groove contains a sliding hole and a sliding rod that is mounted in the sliding hole and can slide longitudinally relative to the base. A sliding bracket is mounted on the sliding rod. The saw is rotatably connected to the sliding bracket and can move relative to the base together with the sliding bracket. An elastic element is provided between the sliding rod and the base or between the sliding bracket and the base to drive the sliding rod, the sliding bracket and the saw to move and reset.

2. The table saw with a sliding bracket according to claim 1, characterized in that, The sliding bracket is installed on one end of the slide rod, and a connecting piece is fixedly installed on the other end of the slide rod. A first connecting part is provided in the receiving groove. A longitudinal extension piece is provided on the connecting piece, extending longitudinally away from the first connecting part. The elastic element is a tension spring, which is disposed in the receiving groove. One end of the tension spring is connected to the first connecting part, and the other end of the tension spring is connected to the end of the longitudinal extension piece away from the first connecting part.

3. The table saw with a sliding bracket according to claim 1, characterized in that, The base has downward-extending sidewalls around its perimeter, which enclose the bottom of the base to form the receiving groove. A notch is provided on one side of the base sidewall, which communicates with the receiving groove. The lower end of the sliding bracket is received in the notch and is fixedly connected to one end of the sliding rod.

4. The table saw with a sliding support according to claim 3, characterized in that, The sliding bracket includes a middle plate located above the base, a lower arm fixed to the bottom of the middle plate and placed in a notch, and an upper arm fixed to the top of the middle plate. One end of the sliding rod is fixedly connected to the lower arm, and the saw is rotatably mounted on the upper arm.

5. The table saw with a sliding bracket according to claim 4, characterized in that, The lower arm has a slot, and one end of the slide rod is inserted into the slot and fixed to the lower arm with screws.

6. The table saw with a sliding support according to claim 4, characterized in that, The saw is provided with an extended connecting arm. The upper arm includes two side plates, and a space is formed between the two side plates for the connecting arm to be inserted. The connecting arm is inserted between the two side plates and is rotatably connected to the two side plates via a pivot.

7. The table saw with a sliding support according to claim 6, characterized in that, A rotary locking mechanism for locking the saw machine relative to the base is provided between the upper arm and the connecting arm. The rotary locking mechanism includes a locking pin on one side plate. A first locking groove is provided on the connecting arm to engage with the locking pin. The locking pin can move relative to the side plate to engage or disengage with the first locking groove. A locking protrusion is provided on the outer circumference of the locking pin. A high position and a low position are provided on the side plate to engage with the locking protrusion. A first spring is provided between the locking pin and the side plate to drive the locking pin to move so that the locking protrusion abuts against the corresponding high or low position. The locking pin can rotate around its own axis to switch the locking protrusion between the position opposite to the high position and the position opposite to the low position. When the locking pin rotates to the position where the locking protrusion is opposite to the low position and abuts, the locking pin is inserted into the first locking groove and engages with the first locking groove. When the locking pin rotates to the position where the locking protrusion is opposite to the high position and abuts, the locking pin disengages from the first locking groove.

8. The table saw with a sliding support according to claim 4, characterized in that, A movable locking mechanism is provided between the intermediate plate and the base, which allows the sliding bracket to move relative to the base. The movable locking mechanism includes a locking bolt. A threaded hole is provided on the intermediate plate, and the locking bolt is connected to the threaded hole. A second locking groove is provided on the base, which is located below the threaded hole. The locking bolt can be screwed down along the thread in the threaded hole to engage with the second locking groove or screwed up to separate from the second locking groove.

9. The table saw with a sliding support according to claim 1, characterized in that, A slide block is detachably installed in the receiving groove, and the slide block has a sliding hole for the slide rod to pass through.

10. The table saw with a sliding support according to claim 6, characterized in that, Two limiting parts are provided between the two side plates, and a mating part is provided on the connecting arm extending out and located between the two limiting parts. The mating part moves between the two limiting parts to limit the maximum angle of the saw swinging up or down.

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