Automatic locking and quick dismounting bench saw upper shield with dust collection function

Abstract

The utility model discloses an automatic locking and quick dismounting bench saw upper shield with a dust collection function in the technical field of bench saw shields, which comprises a shield body, a material distribution cutter is arranged at the bottom of the shield body, the shield body and the material distribution cutter are connected through a fastening component, and a first notch and a second notch are arranged at the top of the material distribution cutter. Through the arrangement of the first notch, the second notch, the first locking pin and the fastening assembly, when a worker needs to detach the protective cover body from the material dividing cutter to clean or replace the protective cover body, a cross rod in the fastening assembly can move leftwards to drive the second locking pin to move; and when the second locking pin is separated from the interior of the second notch, the clamping effect between the protective cover body and the material distributing cutter can be relieved, a worker can detach the protective cover body from the material distributing cutter, convenience and rapidness are achieved, and the working efficiency of the worker is improved.

Description

Technical Field

[0001] This utility model relates to the field of table saw guard technology, and in particular to an automatic locking and quick-release table saw guard with dust collection function. Background Technology

[0002] A table saw is a woodworking tool consisting of a slitting blade and a circular saw blade mounted on a spindle. It is usually driven by a motor assembly. The slitting blade is mounted on the motor assembly and moves up and down together with the saw blade. Since the saw blade is a sharp metal object, a protective cover should be installed on the top side of the saw blade to protect workers and in accordance with safety regulations.

[0003] However, existing technologies have some problems: because a certain cutting space needs to be left between the upper guard and the saw blade, the upper guard is usually installed on the dividing blade next to the saw blade, and the upper guard is usually fixed to the dividing blade with bolts. Therefore, when the operator needs to remove the upper guard to clean the internal debris or when the upper guard is damaged and needs to be replaced, the operator needs to use additional tools to remove and install multiple sets of bolts to remove the upper guard. The process is cumbersome and inefficient, and the bolts need to be tightened again for installation. Therefore, we propose an automatic locking and quick-disassembly table saw upper guard with dust collection function. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic locking and quick-release table saw top cover with dust collection function.

[0005] The purpose of this utility model is achieved as follows: an automatic locking and quick-release table saw with dust collection function upper guard, including a guard body, a material separating knife provided at the bottom of the guard body, the guard body and the material separating knife being connected by a fastening component, a first slot and a second slot being provided at the top of the material separating knife, and a first locking pin located inside the first slot being fixedly installed on the inner wall of the guard body.

[0006] Optionally, the fastening assembly includes two crossbars, which are movably mounted on both sides of the cover body. Each crossbar has a first U-shaped hole and is movably sleeved on a first locking pin through the first U-shaped hole. The cover body has a second U-shaped hole and a third U-shaped hole. A second locking pin located inside the second U-shaped hole is fixedly connected between the two crossbars. The outer surface of the second locking pin abuts against the inner wall of the second slot. A trigger is provided on the cover body, and the trigger and the crossbar are connected by a transmission assembly.

[0007] Optionally, the transmission assembly includes a round rod, which is fixedly installed on the inner wall of the protective cover body. A first connecting rod is rotatably connected to the round rod, and the trigger is movably sleeved on the first connecting rod. A second connecting rod is hinged to the other end of the first connecting rod, and a round pin is fixedly installed at the other end of the second connecting rod. Both ends of the round pin pass through a third U-shaped hole and are rotatably connected to two crossbars respectively.

[0008] Optionally, the trigger is provided with a torsion spring, one end of which is provided on the cover body and the other end is provided on the trigger.

[0009] Optionally, a spring is fixedly mounted on the outer surface of the second locking pin, and the other end of the spring is fixedly connected to the first locking pin.

[0010] Optionally, the inside of the protective cover body is provided with a dust suction duct, and a dust discharge port is opened on the left side of the protective cover body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, by setting a first slot, a second slot, a first locking pin, and a fastening component, allows the second locking pin to move when the worker needs to remove the protective cover body from the dispensing knife for cleaning or replacement. This is achieved by moving the crossbar in the fastening component to the left, causing the second locking pin to move away from the second slot and closer to the first locking pin. When the second locking pin disengages from the inside of the second slot, the locking effect between the protective cover body and the dispensing knife is released, allowing the worker to remove the protective cover body from the dispensing knife quickly and easily, thus improving the worker's work efficiency.

[0013] 2. This utility model, by setting a torsion spring and a spring, and by setting the torsion spring to a torsional state, due to the torsional restoring effect of the torsion spring, can make the trigger tend to turn to the left, thereby making the first connecting rod tend to pull the round pin to the right through the second connecting rod. At the same time, by setting the spring to a compressed state, due to the elastic restoring effect of the spring, the second locking pin will tend to move away from the first locking pin. Thus, the stability of the protective cover body and the dispensing knife in the locked state is ensured by the cooperation of the torsion spring and the spring. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1This is a schematic diagram of the structure installed on the cutting table provided by this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure provided by this utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the crossbar provided by this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the interior of the protective cover body provided by this utility model;

[0019] Figure 5 This is a front structural diagram of the protective cover body provided by this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure between the crossbar and the trigger provided by this utility model;

[0021] Figure 7 This is a schematic diagram of the side structure of the trigger provided by this utility model;

[0022] Figure 8 This is a schematic diagram showing the positional structure of the second U-shaped hole and the third U-shaped hole provided by this utility model;

[0023] Figure 9 This is a schematic diagram of the structure after the trigger is rotated, as provided by this utility model.

[0024] In the diagram: 1. Protective cover body; 2. Material separating knife; 3. First slot; 4. Second slot; 5. First locking pin; 6. Crossbar; 7. First U-shaped hole; 8. Second U-shaped hole; 9. Second locking pin; 10. Third U-shaped hole; 11. Trigger; 12. Round rod; 13. First connecting rod; 14. Second connecting rod; 15. Round pin; 16. Torsion spring; 17. Spring; 18. Dust suction duct; 19. Dust discharge port. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1 to 9As shown in the figure, the present invention provides an automatic locking and quick-release table saw with dust collection function upper guard, including guard body 1, a material separating knife 2 is provided at the bottom of guard body 1, guard body 1 and material separating knife 2 are connected by fastening components, the top of material separating knife 2 is provided with a first groove 3 and a second groove 4, and a first locking pin 5 located inside the first groove 3 is fixedly installed on the inner wall of guard body 1.

[0027] Furthermore, the fastening assembly includes two crossbars 6, which are movably mounted on both sides of the cover body 1. The crossbars 6 have a first U-shaped hole 7 and are movably sleeved on the first locking pin 5 through the first U-shaped hole 7. The cover body 1 has a second U-shaped hole 8 and a third U-shaped hole 10. A second locking pin 9 located inside the second U-shaped hole 8 is fixedly connected between the two crossbars 6. The outer surface of the second locking pin 9 abuts against the inner wall of the second slot 4. A trigger 11 is provided on the cover body 1, and the trigger 11 and the crossbars 6 are connected by a transmission assembly.

[0028] When the crossbar 6 moves to the left, it can drive the second locking pin 9 to move to the left along the inner wall of the second U-shaped hole 8, thereby moving the second locking pin 9 away from the second slot 4 and closer to the first locking pin 5, thereby releasing the jamming effect between the protective cover body 1 and the dispensing knife 2, so that the protective cover body 1 can be removed from the dispensing knife 2.

[0029] Furthermore, the transmission assembly includes a round rod 12, which is fixedly installed on the inner wall of the protective cover body 1. A first connecting rod 13 is rotatably connected to the round rod 12. A trigger 11 is movably sleeved on the first connecting rod 13. A second connecting rod 14 is hinged to the other end of the first connecting rod 13. A round pin 15 is fixedly installed on the other end of the second connecting rod 14. Both ends of the round pin 15 pass through the third U-shaped hole 10 and are rotatably connected to the two crossbars 6 respectively.

[0030] When the operator pulls the trigger 11 to the right, it can drive the first connecting rod 13 to rotate, which in turn can push the round pin 15 to move through the second connecting rod 14. This increases the center distance between the round rod 12 and the round pin 15, and the round pin 15 moves to the left along the inner wall of the third U-shaped hole 10, which in turn can drive the crossbar 6 to move to the left. This allows the second locking pin 9 to disengage from the inside of the second slot 4, releasing the jamming effect between the protective cover body 1 and the material separating knife 2.

[0031] Furthermore, a torsion spring 16 is provided on the trigger 11, with one end of the torsion spring 16 being provided on the protective cover body 1 and the other end being provided on the trigger 11.

[0032] By setting the torsion spring 16 to a torsional state, the torsional recovery effect of the torsion spring 16 can cause the trigger 11 to have a tendency to turn to the left, thereby causing the first connecting rod 13 to have a tendency to pull the round pin 15 to the right through the second connecting rod 14, thus ensuring the stability of the protective cover body 1 and the material separating knife 2 when they are engaged.

[0033] Furthermore, a spring 17 is fixedly installed on the outer surface of the second locking pin 9, and the other end of the spring 17 is fixedly connected to the first locking pin 5.

[0034] By setting the spring 17 to a compressed state, the spring 17's elasticity will cause the second locking pin 9 to tend to move away from the first locking pin 5, thereby further ensuring the stability of the protective cover body 1 and the material separating knife 2 in the locked state.

[0035] Furthermore, the interior of the protective cover body 1 is provided with a dust suction duct 18, and a dust discharge port 19 is provided on the left side of the protective cover body 1.

[0036] When workers use a table saw to cut wood, they can connect the vacuum cleaner hose to the dust outlet 19, so that the dust from cutting the wood can be sucked up through the suction duct 18, thereby improving the dust collection rate and improving the working environment.

[0037] Working principle and usage process of this utility model:

[0038] When the operator needs to disassemble the protective cover body 1, pulling the trigger 11 to the right will rotate the first connecting rod 13 and twist the torsion spring 16, thereby increasing the angle between the first connecting rod 13 and the second connecting rod 14 to more than 180°. This will cause the second connecting rod 14 to push the round pin 15 to move, increasing the center distance between the round rod 12 and the round pin 15. The round pin 15 will move to the left along the inner wall of the third U-shaped hole 10, thereby causing the crossbar 6 to move to the left. The crossbar 6 will then cause the second locking pin 9 to move to the left along the inner wall of the second U-shaped hole 8, thus moving the second locking pin 9 away from the second slot 4 and closer to the first locking pin 5. When the second locking pin 9 moves from the second slot 4... When the inside of the slot 4 is disengaged, the locking effect between the protective cover body 1 and the distributing knife 2 is released, allowing the protective cover body 1 to be removed from the distributing knife 2. During installation, the first locking pin 5 is engaged inside the first slot 3, and the second locking pin 9 is located on the left side of the second slot 4. Then, the operator pushes the trigger 11 to the left. Under the elastic force of the torsion spring 16, the second locking pin 9 automatically moves to the right, increasing the center distance between the first locking pin 5 and the second locking pin 9. This causes the protective cover body 1 to be automatically secured to the distributing knife 2. At the same time, under the pushing force of the first connecting rod 13 and the second connecting rod 14 and the torque force of the torsion spring 16, the trigger 11 rotates to the locking position, achieving an automatic locking effect.

[0039] The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. 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. An automatic locking quick-release dust collection function upper guard for a table saw, comprising a guard body (1), characterized in that: The bottom of the shield body (1) is provided with a distributing knife (2), the shield body (1) and the distributing knife (2) are connected through a fastening assembly, the top of the distributing knife (2) is provided with a first notch (3) and a second notch (4), and the inner wall of the shield body (1) is fixedly installed with a first locking pin (5) located in the first notch (3).

2. An automatic locking quick release dust collecting function upper saw guard according to claim 1, characterized in that: The fastening assembly comprises two cross rods (6), the two cross rods (6) are movably installed on the two sides of the shield body (1), the cross rod (6) is provided with a first U-shaped hole (7) and is movably sleeved on the first locking pin (5) through the first U-shaped hole (7), the shield body (1) is provided with a second U-shaped hole (8) and a third U-shaped hole (10), the second locking pin (9) located in the second U-shaped hole (8) is fixedly connected between the two cross rods (6), the outer surface of the second locking pin (9) abuts against the inner wall of the second notch (4), the shield body (1) is provided with a trigger (11), and the trigger (11) and the cross rod (6) are connected through a transmission assembly.

3. An automatic locking quick release dust collecting function upper saw guard according to claim 2, characterized in that: The transmission assembly comprises a round rod (12), the round rod (12) is fixedly installed on the inner wall of the shield body (1), the first connecting rod (13) is rotatably connected to the round rod (12), the trigger (11) is movably sleeved on the first connecting rod (13), the second connecting rod (14) is hinged to the other end of the first connecting rod (13), the round pin (15) is fixedly installed at the other end of the second connecting rod (14), and the two ends of the round pin (15) pass through the third U-shaped hole (10) and are rotatably connected to the two cross rods (6) respectively.

4. An automatic locking quick dismounting upper guard for table saws with dust collection according to claim 2, characterized in that: The trigger (11) is provided with a torsional spring (16), one end of the torsional spring (16) is arranged on the shield body (1), and the other end of the torsional spring (16) is arranged on the trigger (11).

5. An automatic locking quick dismounting upper guard for table saws with dust collection according to claim 2, characterized in that: The outer surface of the second locking pin (9) is fixedly installed with a spring (17), and the other end of the spring (17) is fixedly connected to the first locking pin (5).

6. An automatic locking quick release dust collection enabled table saw upper guard according to claim 1, wherein: The inside of the shield body (1) is provided with a dust suction air duct (18), and the left side of the shield body (1) is provided with a dust discharge port (19).

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