Safe dual-purpose saw

Abstract

A first microswitch and a second microswitch are installed in a switch box, a first switch key is installed on a lower protective cover, a second switch key is installed on a platen, the common end of the first microswitch is connected with a power source, and the common end of the second microswitch is connected with a main switch. The normally closed terminal of the first microswitch is connected with the normally open terminal of the second microswitch, and the normally open terminal of the first microswitch is connected with the normally closed terminal of the second microswitch. According to the utility model, only when the first microswitch or the second microswitch is triggered, the main switch is turned on to start, so that the condition that a worker forgets to place the lower protective cover on the base when the bench saw is used or forgets to lift the bedplate or the bedplate is not lifted in place when the cutting saw is used can be avoided; and the use safety of the dual-purpose saw is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of dual-purpose saws, and in particular relates to a safe dual-purpose saw. Background Art

[0002] The dual-purpose saw can be used as a table saw and as a cutting saw, which is very convenient to use.

[0003] However, the dual-purpose saws in the prior art have some problems in practical application. For example, when the table saw is in use, the staff forgets to place the lower guard on the base to expose the saw teeth under the machine head; or when the cutting saw is in use, the staff forgets to raise the table or the table is not raised into place to expose the saw teeth above the table, which poses a great safety hazard when performing cutting operations. Utility Model Content

[0004] In order to solve the problems raised in the above background technology, the utility model provides a safe dual-purpose saw, which has the characteristics of high safety in use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe dual-purpose saw, comprising a base, a machine head hinged on the base, a lower guard cover placed above the base, a table top connected to the machine head, wherein the machine head comprises a shell, a handle connected to the shell, a main switch installed on the handle, a switch box also installed on the shell, a first micro switch and a second micro switch installed inside the switch box, a first switch key corresponding to the first micro switch installed on the lower guard cover, a second switch key corresponding to the second micro switch installed on the table top, a common end of the first micro switch is connected to a power supply, a common end of the second micro switch is connected to the main switch, a normally closed terminal of the first micro switch is connected to a normally open terminal of the second micro switch, and a normally open terminal of the first micro switch is connected to a normally closed terminal of the second micro switch.

[0006] In order to realize the connection between the table and the machine head, further, a bracket and a lifting seat are respectively connected to the bottom of the table, the second switch is installed on the lifting seat, and the bracket and the lifting seat are respectively connected to the shell through adjustment parts.

[0007] In order to facilitate the movement or locking of the platform, further, the bracket and the lifting seat are respectively provided with an oblong groove, and the adjusting member includes a screw rod, one end of the screw rod passes through the oblong groove and is connected to the shell, and the other end of the screw rod is engaged with an adjusting button.

[0008] In order to guide the lifting of the platform, further, a guide groove corresponding to the lifting seat is provided on the shell.

[0009] In order to make the table automatically rise after the adjusting button is released, thereby improving the convenience of use, a boss is further connected to the bottom of the table, and a spring is sleeved on the outside of the boss, and the other end of the spring is connected to the shell.

[0010] In order to increase the safety when the cutting saw is used, further, a lower guard of the table corresponding to the saw blade of the machine head is connected below the table, and an upper guard of the table corresponding to the saw blade of the machine head is connected above the table.

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

[0012] 1. The utility model is provided with a first micro switch and a second micro switch. Only when the first micro switch or the second micro switch is triggered, the main switch can be turned on to start the saw, thereby preventing the situation that when the table saw is in use, the staff forgets to place the lower guard on the base to expose the saw teeth below the machine head, or when the cutting saw is in use, the staff forgets to raise the table or the table is not raised in place to expose the saw teeth above the table, and the saw can still be started, which effectively improves the safety of the dual-purpose saw;

[0013] 2. A boss is connected to the bottom of the table of the utility model. A spring is sleeved on the outside of the boss. The other end of the spring is connected to the housing. After the adjustment button is released, the table can automatically rise under the action of the spring, which improves the convenience of use.

[0014] 3. The utility model has a lower tabletop guard corresponding to the saw blade of the machine head connected below the tabletop, and an upper tabletop guard corresponding to the saw blade of the machine head connected above the tabletop, which increases the safety when the cutting saw is in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a schematic diagram of the explosion of the structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the lower protective cover of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the machine head of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the tabletop of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the utility model when used as a cutting saw;

[0021] Figure 6 This is a schematic diagram of the structure of the utility model when used as a table saw;

[0022] Figure 7 It is a structural schematic diagram of the cooperation between the second switch key and the second micro switch when the utility model is used as a cutting saw;

[0023] Figure 8 It is a structural schematic diagram of the first switch key and the first micro switch when the utility model is used as a table saw;

[0024] Fig. 9 This is a circuit diagram of the utility model when both the first micro switch and the second micro switch are not triggered;

[0025] Fig.10 This is a schematic diagram of the structure of the utility model when only the first micro switch is triggered;

[0026] Fig.11 This is a schematic diagram of the structure of the utility model when only the second micro switch is triggered;

[0027] In the figure: 1. base; 2. lower shield; 21. first switch; 3. machine head; 31. housing; 32. guide groove; 33. handle; 4. table; 41. bracket; 42. lower shield of table; 43. boss; 44. lifting seat; 45. second switch; 46. spring; 47. adjustment knob; 48. screw; 49. upper shield of table; 5. switch box; 51. first micro switch; 52. second micro switch; 6. main switch. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] See also Figure 1-11The utility model provides the following technical solutions: a safe dual-purpose saw, comprising a base 1, a machine head 3 is hinged on the base 1, a lower guard 2 is placed above the base 1, and a table 4 is connected to the machine head 3, wherein the machine head 3 comprises a shell 31, a handle 33 is connected to the shell 31, a main switch 6 is installed on the handle 33, a switch box 5 is also installed on the shell 31, a first micro switch 51 and a second micro switch 52 are installed inside the switch box 5, a first switch key 21 corresponding to the first micro switch 51 is installed on the lower guard 2, and a second switch key 45 corresponding to the second micro switch 52 is installed on the table 4, a common end of the first micro switch 51 is connected to a power supply, a common end of the second micro switch 52 is connected to the main switch 6, a normally closed terminal of the first micro switch 51 is connected to a normally open terminal of the second micro switch 52, and a normally open terminal of the first micro switch 51 is connected to a normally closed terminal of the second micro switch 52.

[0031] By adopting the above technical solution, the utility model is provided with a first micro switch 51 and a second micro switch 52. Only when the first micro switch 51 or the second micro switch 52 is triggered, the main switch 6 can be turned on to start the saw. This can avoid the situation where the staff forgets to place the lower guard 2 on the base 1 when the table saw is in use, or the staff forgets to raise the table 4 or the table 4 is not raised to the right position when the cutting saw is in use, and the saw can still be started, thereby effectively improving the safety of the dual-purpose saw.

[0032] Specifically, a bracket 41 and a lifting seat 44 are connected to the bottom of the platform 4, and the second switch 45 is installed on the lifting seat 44. The bracket 41 and the lifting seat 44 are connected to the shell 31 through adjustment members.

[0033] By adopting the above technical solution, the connection between the table 4 and the machine head 3 is achieved.

[0034] Specifically, the bracket 41 and the lifting seat 44 are respectively provided with an oblong groove, and the adjusting member includes a screw rod 48 , one end of the screw rod 48 passes through the oblong groove and is connected to the housing 31 , and the other end of the screw rod 48 is meshed with an adjusting button 47 .

[0035] By adopting the above technical solution, it is convenient to move or lock the table plate 4.

[0036] Specifically, a guide groove 32 corresponding to the lifting seat 44 is provided on the shell 31 .

[0037] By adopting the above technical solution, the lifting and lowering of the table 4 is guided.

[0038] Example 2

[0039] The present embodiment is different from the first embodiment in that: specifically, a boss 43 is further connected to the bottom of the platform 4 , a spring 46 is sleeved on the outside of the boss 43 , and the other end of the spring 46 is connected to the housing 31 .

[0040] By adopting the above technical solution, after the adjusting button 47 is loosened, the table 4 can automatically rise under the action of the spring 46, thereby improving the convenience of use.

[0041] Example 3

[0042] The present embodiment is different from the embodiment 1 in that, specifically, a lower tabletop guard 42 corresponding to the saw blade of the machine head 3 is connected below the tabletop 4 , and an upper tabletop guard 49 corresponding to the saw blade of the machine head 3 is connected above the tabletop 4 .

[0043] By adopting the above technical solution, the safety when the cutting saw is used is increased.

[0044] In summary, the utility model is provided with a first micro switch 51 and a second micro switch 52. Only when the first micro switch 51 or the second micro switch 52 is triggered, the main switch 6 can be turned on to start the saw, thereby avoiding the situation that when the table saw is in use, the staff forgets to place the lower guard 2 on the base 1 to expose the saw teeth under the machine head, or when the cutting saw is in use, the staff forgets to raise the table 4 or the table 4 is not raised in place to expose the saw teeth above the table, and the saw can be started, which effectively improves the safety of the dual-purpose saw; the table 4 of the utility model is also connected to a boss 43 at the bottom, and the outer sleeve of the boss 43 is provided with a spring 46, and the other end of the spring 46 is connected to the shell 31. After the adjusting button 47 is released, the table 4 can automatically rise under the action of the spring 46, which improves the convenience of use; the table 4 of the utility model is connected to a lower table guard 42 corresponding to the saw blade of the machine head 3 at the bottom, and the table guard 49 corresponding to the saw blade of the machine head 3 is connected to the top of the table 4, which increases the safety when the cutting saw is in use.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A safe dual-purpose saw, comprising a base, characterized in that: A machine head is hinged on the base, a lower guard is placed above the base, and a table is connected to the top of the machine head, wherein the machine head includes a shell, a handle is connected to the shell, a main switch is installed on the handle, a switch box is also installed on the shell, a first micro switch and a second micro switch are installed inside the switch box, a first switch key corresponding to the first micro switch is installed on the lower guard, and a second switch key corresponding to the second micro switch is installed on the table, a common end of the first micro switch is connected to a power supply, a common end of the second micro switch is connected to the main switch, a normally closed terminal of the first micro switch is connected to a normally open terminal of the second micro switch, and a normally open terminal of the first micro switch is connected to a normally closed terminal of the second micro switch.

2. A safe dual-purpose saw according to claim 1, characterized in that: A bracket and a lifting seat are respectively connected to the bottom of the platform, the second switch key is installed on the lifting seat, and the bracket and the lifting seat are respectively connected to the shell through adjusting parts.

3. A safe dual-purpose saw according to claim 2, characterized in that: The bracket and the lifting seat are respectively provided with an oblong groove, and the adjusting member comprises a screw rod, one end of the screw rod passes through the oblong groove and is connected with the shell body, and the other end of the screw rod is meshed with an adjusting button.

4. A safe dual-purpose saw according to claim 2, characterized in that: The shell body is provided with a guide groove corresponding to the lifting seat.

5. The safety dual-purpose saw according to claim 1, characterized in that: A boss is also connected below the platform, a spring is sleeved outside the boss, and the other end of the spring is connected to the shell.

6. A safe dual-purpose saw according to claim 1, characterized in that: A lower guard cover of the table corresponding to the saw blade of the machine head is connected below the table.

7. A safe dual-purpose saw according to claim 1, characterized in that: A table top guard corresponding to the saw blade of the machine head is connected above the table top.

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