CN217859100U

CN217859100U - Compound saw with double-protective-cover interlocking mechanism

Info

Publication number: CN217859100U
Application number: CN202221233977.4U
Authority: CN
Inventors: 宋希万
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-11-22
Anticipated expiration: 2032-05-20

Abstract

The utility model relates to a compound saw with two guard shield interlocking device, in this compound saw, the fuselage has the base and arranges the frame just in the base top, the rear end of frame can be connected on the base with rotating, so that its front end is relative base luffing motion, thereby make compound saw correspond and be in oblique cutting mode or bench cutting mode, arrange the gag lever post through setting up horizontal extension in the frame, make the gag lever post along self extending direction reciprocating motion's in-process, drive first spacing portion and the spacing portion of second and support first guard shield and the second guard shield that leans on the shroud down respectively, with the locking to the realization two guard shields, perhaps break away from supporting to first guard shield and second guard shield and lean on, so that first guard shield and second guard shield shrink to the frame in, the design form of gag lever post like this, need not complicated locking mechanism, only can one step be to the locking and the unblock of two guard shields through operating the gag lever post removal, it is very convenient.

Description

Compound saw with double-protective-cover interlocking mechanism

Technical Field

The utility model relates to a cutting means field specifically belongs to a double entry saw with two guard shield interlocking device.

Background

Compound saws are widely used because they are capable of performing both table cutting and mitering operations. The compound saw uses part of saw blade higher than the table top plate to perform table cutting work, and uses part of saw blade under the table top plate to perform oblique cutting work.

According to the safety requirements of products, one or more protective covers are assembled in the oblique-cutting mode of the oblique-cutting saw or the compound saw, so that when the machine is lifted to the highest position, the protective covers can protect sawteeth and automatically lock the machine head, and the machine head is also locked (self-locked) at the same time. In the oblique cutting saw or the compound saw in the prior art, the number of the adopted protective covers is generally one or two, and the number of the adopted protective covers is also three, wherein the types of the protective covers mainly comprise an active protective cover driven by the force of a machine mechanism and a passive protective cover pushed open by a workpiece. In machines using a plurality of protective covers, the prior art basically adopts a multi-link mechanism for driving and self-locking, and the manufacturing process is complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to prior art's current situation, a simple structure and one step realization locking and unblock double entry saw that has two guard shield interlocking device are provided.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a compound saw having a dual shroud interlock mechanism comprising:

the compound saw comprises a machine body and a driving device, wherein the machine body is provided with a base and a rack arranged above the base, the rear end of the rack can be rotatably connected to the base so that the front end of the rack can swing up and down relative to the base, the compound saw is correspondingly in a beveling mode or a table cutting mode, a saw blade is arranged in the rack, and the bottom of the rack is provided with a cutting opening through which the lower side of the saw blade penetrates;

the lower cover comprises a first shield and a second shield, the first shield and the second shield are both arranged on the periphery of the saw blade, and the upper ends of the first shield and the second shield are rotatably connected in the rack, so that the lower ends of the first shield and the second shield can be close to each other to be combined on the lower side of the rack to form a complete lower cover, or are far away from each other to be respectively contracted into the rack, and therefore the cutting edge on the lower side of the saw blade is exposed out of the cutting opening; and

the limiting rod is arranged in the rack and transversely extends, a first limiting part and a second limiting part are arranged in the extending direction, and the limiting rod can move in the extending direction in a reciprocating mode to enable the first limiting part and the second limiting part to be correspondingly abutted against the first protective cover and the second protective cover so as to limit the first protective cover and the second protective cover to shrink or enable the first limiting part and the second limiting part to be disengaged from the abutting against the first protective cover and the second protective cover so as to enable the first protective cover and the second protective cover to shrink into the rack.

The limiting rod can be arranged at different positions of the rack as long as the lower cover cap can be locked and unlocked, preferably, the limiting rod is arranged above the lower cover cap, and the first limiting part and the second limiting part are both arranged at the bottom of the limiting rod and extend downwards.

In order to ensure a sufficient rotational distance between the two shields, the first and second limiting portions are preferably arranged at intervals in the length direction of the limiting rod.

The first limiting part can be realized by different structures, preferably, the rear end of the limiting rod is provided with a side rod extending downwards, the side rod forms the first limiting part, the first shield is provided with a guide groove extending up and down at a position adjacent to the side rod, and the side rod is abutted against a step on the upper edge of the first shield wall plate to limit the upward rotation of the first shield when the limiting rod moves to a state that the side rod is staggered with the guide groove; when the limiting rod moves to a state that the side rod is opposite to the inlet of the guide groove, the side rod can slide along the guide groove, and therefore the first protective cover is guided to rotate upwards.

In order to compensate for the rotational travel of the first shield, in particular, the guide grooves are arranged obliquely rearward from top to bottom, and the lower ends of the side bars are provided with guide posts fitting the guide grooves.

The second limiting part can also be realized by different structures, preferably, the middle part of the limiting rod is provided with a swing rod capable of synchronously reciprocating along with the limiting rod, the swing rod forms the second limiting part, the upper end of the swing rod can be rotatably connected to the limiting rod, so that the lower end of the swing rod can swing relative to the limiting rod, the limiting rod is further provided with an elastic part, the elastic part acts on the swing rod, the swing rod always has the tendency of swinging to the vertical direction and abuts against the top of the second shield, and therefore the second shield is limited to rotate upwards.

Specifically, the frame is provided with a trigger part on a path of the swing rod moving along with the limiting rod, and the swing rod can abut against the trigger part to swing to be parallel to the limiting rod, so that the limitation on the second shield is removed.

Preferably, the elastic part is a torsion spring, and two action ends of the torsion spring respectively abut against the swing rod and the limiting rod.

Preferably, a first rotating shaft penetrates through the rear side of the rack, and the upper end of the first protective cover is rotatably connected to the first rotating shaft.

Preferably, the saw blade can be rotatably arranged in the rack through a second rotating shaft penetrating through the rack, and the upper end of the second shield is rotatably connected to the second rotating shaft.

Compared with the prior art, the utility model has the advantages of: in this compound saw with two guard shield interlocking device, arrange the gag lever post through setting up horizontal extension in the frame, make the gag lever post along self extending direction reciprocating motion's in-process, drive first spacing portion and the spacing portion of second and lean on first guard shield and the second guard shield of under shroud respectively, in order to realize the locking to two guard shields, perhaps break away from the support to first guard shield and second guard shield, so that first guard shield and second guard shield shrink to in the frame, the design form of gag lever post like this, need not complicated locking mechanism, only can accomplish the locking and the unblock to two guard shields in one step through operation gag lever post removal, it is very convenient.

Drawings

Fig. 1 is a schematic view of the overall structure of the compound saw according to the embodiment of the present invention (a stop lever locking double guard);

fig. 2 is a schematic view of the overall structure of the compound saw according to the embodiment of the present invention (the stop lever unlocks the double guard);

fig. 3 is a schematic view of the compound saw with a part of the structure omitted.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 3, it is a preferred embodiment of the present invention. In this embodiment, the double saw with the double guard interlock mechanism includes a body 1, a lower cover 2, and a stopper rod 3. The machine body 1 is provided with a base 11 and a frame 12 arranged above the base 11, the rear end of the frame 12 can be rotatably connected to the base 11, so that the front end of the frame 12 can swing up and down relative to the base 11, the compound saw is correspondingly in a beveling mode or a table cutting mode, a saw blade 13 is arranged in the frame 12, and the bottom of the frame 12 is provided with a cutting opening for the lower side of the saw blade 13 to penetrate through. The lower cover 2 in this embodiment is used for protecting the cutting edge of the lower side of the saw blade, and specifically includes a first cover 21 and a second cover 22, both the first cover 21 and the second cover 22 are disposed at the periphery of the saw blade 13, and the upper ends of the first cover 21 and the second cover 22 are rotatably connected in the frame 12, so that the respective lower ends can approach each other to form the complete lower cover 2 by being joined at the lower side of the frame 12, or move away from each other and respectively retract into the frame 12, so that the cutting edge of the lower side of the saw blade 13 is exposed to the cutting opening, specifically, a first rotating shaft 4 is penetrated at the rear side of the frame 12, and the upper end of the first cover 21 is rotatably connected to the first rotating shaft 4. The saw blade 13 is rotatably disposed in the frame 12 through a second rotating shaft 5 penetrating through the frame 12, and an upper end of the second shield 22 is rotatably connected to the second rotating shaft 5.

In this embodiment, the first shield 21 and the second shield 22 are locked and unlocked by the limiting rod 3, the limiting rod 3 is disposed in the rack 12 and extends transversely, and a first limiting portion and a second limiting portion are disposed in an extending direction of the limiting rod, in the beveling mode, the limiting rod 3 can move back and forth in the extending direction of the limiting rod, so that the first limiting portion and the second limiting portion correspondingly abut against the first shield 21 and the second shield 22 of the lower cover 2, thereby limiting the first shield 21 and the second shield 22 from contracting, or the first limiting portion and the second limiting portion are disengaged from abutting against the first shield 21 and the second shield 22, thereby retracting the first shield 21 and the second shield 22 into the rack 12. The limiting rod 3 in this embodiment is arranged above the lower cover 2, and both the first limiting part and the second limiting part are arranged at the bottom of the limiting rod 3 and extend downwards. And the first limit part and the second limit part are arranged at intervals in the length direction of the limit rod 3.

The first limit part and the second limit part can be realized by different specific structures, in the embodiment, the rear end of the limit rod 3 is provided with a side rod 31 extending downwards, the side rod 31 forms the first limit part, the first shield 21 is provided with a guide groove 23 extending upwards and downwards at the position adjacent to the side rod 31, and under the condition that the limit rod 3 moves to the state that the side rod 31 is staggered with the guide groove 23, because no external force is involved at the moment, the side rod 31 is abutted against the step 24 on the upper edge of the wall plate of the first shield 21, the first shield 21 can be limited to rotate upwards; in a state where the stopper rod 3 is moved to the side lever 31 opposed to the entrance of the guide groove 23, the side lever 31 can slide along the guide groove 23 by the applied external force, thereby guiding the first hood 21 to rotate upward. Specifically, the above-described guide groove 23 is arranged obliquely rearward from top to bottom, and the lower end of the side lever 31 is provided with a guide post 32 fitted into the guide groove 23. And the middle part of the limiting rod 3 is provided with a swing rod 33 which can synchronously reciprocate along with the limiting rod 3, the swing rod 33 forms a second limiting part, the upper end of the swing rod 33 can be rotatably connected to the limiting rod 3 so that the lower end of the swing rod can swing relative to the limiting rod 3, the limiting rod 3 is also provided with an elastic part 34, and the elastic part 34 acts on the swing rod 33 so that the swing rod 33 always has the tendency of swinging to the vertical direction and is propped against the top of the second shield 22, thereby limiting the upward rotation of the second shield 22.

In addition, a trigger 35 is provided on the frame 12 on a path where the swing link 33 travels along the stopper rod 3, and the swing link 33 can abut against the trigger 35 to swing to be parallel to the stopper rod 3, thereby releasing the restriction of the second shield 22. The elastic member 34 in this embodiment is a torsion spring, and two acting ends of the torsion spring respectively abut against the swing link 33 and the limiting rod 3.

Furthermore, directional terms, such as "front," "rear," "upper," "lower," "left," "right," "side," "top," "bottom," and the like, used in the description and claims of the present invention are used to describe various example structural portions and elements of the present invention, but are used herein for convenience of description only and are to be determined based on example orientations shown in the accompanying drawings. Because the disclosed embodiments of the present invention may be arranged in a variety of orientations, these directional terms are for illustrative purposes only and should not be construed as limiting, e.g., "upper" and "lower" are not necessarily limited to orientations that are opposite or coincident with the direction of gravity.

Claims

1. A compound saw having a dual shroud interlock mechanism comprising:

the compound saw comprises a machine body (1) and a saw blade (13), wherein the machine body (1) is provided with a base (11) and a rack (12) arranged above the base (11), the rear end of the rack (12) can be rotatably connected to the base (11) so that the front end of the rack can swing up and down relative to the base (11), the compound saw is correspondingly in a beveling mode or a table cutting mode, the saw blade (13) is arranged in the rack (12), and the bottom of the rack (12) is provided with a cutting opening for the lower side of the saw blade (13) to penetrate out;

it is characterized by also comprising:

the lower cover (2) comprises a first shield (21) and a second shield (22), the first shield (21) and the second shield (22) are both arranged on the periphery of the saw blade (13), the upper ends of the first shield and the second shield are rotatably connected in the rack (12), so that the lower ends of the first shield and the second shield can approach each other to be combined on the lower side of the rack (12) to form the complete lower cover (2), or the first shield and the second shield are far away from each other to be respectively contracted into the rack (12), and thus the cutting edge of the lower side of the saw blade (13) is exposed out of the cutting opening (10); and

the limiting rod (3) is arranged in the rack (12) and transversely extends, a first limiting portion and a second limiting portion are arranged in the extending direction, under the beveling mode, the limiting rod (3) can move in the extending direction in a reciprocating mode, so that the first limiting portion and the second limiting portion are correspondingly abutted against the first protective cover (21) and the second protective cover (22), the first protective cover (21) and the second protective cover (22) are limited to shrink, or the first limiting portion and the second limiting portion are separated from abutting against the first protective cover (21) and the second protective cover (22), and the first protective cover (21) and the second protective cover (22) are shrunk into the rack (12).

2. The compound saw as defined in claim 1, wherein: the limiting rod (3) is arranged above the lower cover cap (2), and the first limiting part and the second limiting part are both arranged at the bottom of the limiting rod (3) and extend downwards.

3. The compound saw as defined in claim 2, wherein: the first limiting part and the second limiting part are arranged at intervals in the length direction of the limiting rod (3).

4. The compound saw as defined in claim 3, wherein: the rear end of the limiting rod (3) is provided with a side rod (31) extending downwards, the side rod (31) forms the first limiting part, a guide groove (23) extending up and down is formed in the position, adjacent to the side rod (31), of the first protective cover (21), and when the limiting rod (3) moves to a state that the side rod (31) and the guide groove (23) are staggered, the side rod (31) abuts against a step (24) on the upper edge of a wall plate of the first protective cover (21) so as to limit the upward rotation of the first protective cover (21); under the condition that the limiting rod (3) moves to a state that the side rod (31) is opposite to the inlet of the guide groove (23), the side rod (31) can slide along the guide groove (23), so that the first shield (21) is guided to rotate upwards.

5. The compound saw as defined in claim 4, wherein: the guide groove (23) is arranged in a mode that the guide groove is inclined backwards from top to bottom, and the lower end of the side rod (31) is provided with a guide column (32) matched with the guide groove (23).

6. The compound saw as defined in claim 5, wherein: the middle part of gag lever post (3) is provided with can be along with gag lever post (3) synchronous reciprocating motion's pendulum rod (33), pendulum rod (33) form the spacing portion of second, just the upper end of pendulum rod (33) can be connected on gag lever post (3) with rotating to make its lower extreme can be relative gag lever post (3) swing, still be provided with elastic component (34) on gag lever post (3), this elastic component (34) are used in pendulum rod (33), so that pendulum rod (33) have swing to vertical trend all the time, offset with the top of second guard shield (22), thereby restriction second guard shield (22) upwards rotate.

7. The compound saw as defined in claim 6, wherein: the machine frame (12) is provided with a trigger piece (35) on a route of the swing rod (33) along with the limiting rod (3), and the swing rod (33) can abut against the trigger piece (35) to swing to be parallel to the limiting rod (3), so that the limitation on the second protective cover (22) is released.

8. The compound saw as defined in claim 7, wherein: the elastic piece (34) is a torsion spring, and two action ends of the torsion spring are respectively abutted against the swing rod (33) and the limiting rod (3).

9. The compound saw as defined in claim 1, wherein: the rear side of frame (12) is worn to be equipped with first pivot (4), the upper end of first guard shield (21) is rotated and is connected on first pivot (4).

10. The compound saw as defined in claim 1, wherein: the saw blade (13) can be rotatably arranged in the rack (12) through a second rotating shaft (5) penetrating through the rack (12), and the upper end of the second shield (22) is rotatably connected to the second rotating shaft (5).