CN211164053U - Angle-adjustable riving knife - Google Patents

Abstract

The utility model relates to the technical field of riving knives, in particular to an angle-adjustable riving knife, comprising a knife rod, an end of the knife rod is fixedly connected with a connecting frame, and an inner wall of the connecting frame is fixedly connected with a fixed shaft, A knife seat is slidably connected to the surface of the fixed shaft, and a knife head is fixedly connected to the bottom of the knife seat. The utility model locates the sliding sleeve on the cutter bar through the sliding connection between the connecting pin and the connecting hole, and the sliding sleeve restrains the position of the cutter seat to adjust the angle through the connecting strip, so as to locate the position of the cutter head. When the angle needs to be adjusted, Pull the connecting plate through the pull ring, so as to drive the connecting pin out of the connecting hole, move to the next connecting hole position and release the hand, under the action of the elastic mechanism, the connecting plate pulls the connecting pin and the connecting hole slides to connect, the adjustment angle is completed, no need By twisting the parts with tools, it is convenient for the staff to adjust the angle of the cutter head on the riving knife, and the difficulty of adjusting the angle of the cutter head is reduced.

Description

An adjustable angle cleaver

technical field

The utility model relates to the technical field of riving knives, in particular to an angle-adjustable riving knife.

Background technique

The patent document with reference application number CN201721904894.2, a riving knife with an adjustable angle, includes a fixed block and a handle, the upper surface of the fixed block is provided with a first stud hole, and the first stud hole is A stud is movably connected inside, a locking nut is fixedly connected to the bottom of the fixing block, the inner wall of the locking nut is movably connected to the outer wall of the stud, and the other end of the stud is fixedly connected with a turntable, the turntable The back of the shank is fixedly connected with the front of the handle, and a locating pin is movably connected inside the locating hole. The adjustable angle riving knife can adjust the vertical use angle of the conversion riving knife by setting the slot hole matching the positioning hole on the front of the handle, and the positioning hole on the adjustable turntable corresponds to it. The outer wall is provided with an adjusting nut and a locking nut, which enables the stud to adjust the use angle in the horizontal direction in the first stud hole, so that the angle of the tool head can be adjusted without changing the tool head, thereby completing the machining of the inclined plane. . However, in the above technical solution, the positioning structure needs to be operated by adjusting nuts and locking nuts, and needs to be screwed with tools, which is cumbersome and inconvenient to adjust, which increases the difficulty for the staff to adjust the angle.

Utility model content

The purpose of this utility model is to solve the shortcomings in the prior art that it is necessary to operate through the adjusting nut and the locking nut, and it needs to be screwed with the help of a tool, which is troublesome, inconvenient to adjust, and increases the difficulty of adjusting the angle by the staff. A rivet with an adjustable angle is proposed.

In order to achieve the above purpose, the technical scheme adopted by the utility model is: a riving knife with an adjustable angle, comprising a knife rod, the end of the knife rod is fixedly connected with a connecting frame, and the inner wall of the connecting frame is fixedly connected with a a fixed shaft, the surface of the fixed shaft is slidably connected with a knife seat, the bottom of the knife seat is fixedly connected with a knife head, the top of the knife seat is rotatably connected with a connecting strip through the first connection structure, and the connecting strip is The other end of the sliding sleeve is rotatably connected with a sliding sleeve through the second connecting mechanism, and the sliding sleeve is slidably connected to the surface of the tool bar. Both sides of the sliding sleeve are fixedly connected with fixed blocks, and the tops of the two fixed blocks are elastically connected. The mechanism is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with a pull ring, the bottom of the connecting plate is fixedly connected with a connecting pin, the bottom of the connecting pin penetrates the sliding sleeve and extends to the inside thereof, the knife The surface of the rod is provided with a connecting hole for the connecting pin to be slidably connected.

Preferably, the first connecting mechanism includes a set of first connecting plates, the bottom of the first connecting plates is fixedly connected to the top of the tool seat, and a first connecting shaft is fixedly connected between the two first connecting plates , the connecting strip is slidably connected to the surface of the first connecting shaft.

Preferably, the second connecting mechanism includes a set of second connecting plates, the bottom of the second connecting plates is fixedly connected to the top of the sliding sleeve, and a second connecting shaft is fixedly connected between the two second connecting plates , the connecting strip is slidably connected to the surface of the second connecting shaft.

Preferably, the elastic mechanism includes a telescopic rod, two ends of the telescopic rod are fixedly connected to the bottom of the connecting plate and the top of the fixing block respectively, the surface of the telescopic rod is sleeved with a return spring, and the two ends of the return spring are The ends are respectively fixedly connected with the bottom of the connecting plate and the top of the fixing block.

Preferably, the connecting holes are opened at the top of the cutter bar, and are linearly arranged along the length direction of the cutter bar.

Compared with the prior art, the utility model has the following beneficial effects:

1. In the present invention, the sliding sleeve is positioned on the knife rod through the sliding connection between the connecting pin and the connecting hole, and the sliding sleeve restrains the position of the knife seat to adjust the angle through the connecting strip, so as to locate the position of the knife head, and the angle needs to be adjusted. At this time, pull the connecting plate through the pull ring to drive the connecting pin out of the connecting hole, move to the next connecting hole position, release the hand, and under the action of the elastic mechanism, the connecting plate pulls the connecting pin and connects the connecting hole slidingly, and the angle adjustment is completed. , without using tools to twist the parts, it is convenient for the staff to adjust the angle of the cutter head on the riving knife, and the difficulty of adjusting the angle of the cutter head is reduced.

Description of drawings

Fig. 1 is a perspective view after the section of a riving knife with an adjustable angle of the present utility model;

Fig. 2 is the perspective view of a kind of adjustable angle riving knife of the present utility model;

Fig. 3 is a partial enlarged view of part A in Fig. 2 of the utility model.

In the figure: cutter bar 1, connecting frame 2, fixed shaft 3, cutter seat 4, cutter head 5, connecting strip 6, sliding sleeve 7, fixing block 8, connecting plate 9, pulling ring 10, connecting pin 11, connecting hole 12. The first connecting plate 13, the first connecting shaft 14, the second connecting plate 15, the second connecting shaft 16, the telescopic rod 17, and the return spring 18.

Detailed ways

The following description is used to disclose the present invention to enable those skilled in the art to implement the present invention. The preferred embodiments described below are given by way of example only, and other obvious modifications will occur to those skilled in the art.

As shown in Fig. 1-3, an adjustable angle riving knife includes a cutter bar 1, the end of the cutter bar 1 is fixedly connected with a connecting frame 2, and the inner wall of the connecting frame 2 is fixedly connected with a fixed shaft 3, and the fixed shaft The surface of 3 is slidably connected with a knife seat 4 , and the bottom of the knife seat 4 is fixedly connected with a knife head 5 .

The top of the knife seat 4 is rotatably connected with the connecting strip 6 through the first connecting structure. The first connecting mechanism includes a set of first connecting plates 13. The bottom of the first connecting plate 13 is fixedly connected to the top of the knife seat 4. A first connecting shaft 14 is fixedly connected between a connecting plate 13, and the connecting strip 6 is slidably connected to the surface of the first connecting shaft 14. By arranging the first connecting plate 13 and the first connecting shaft 14, the connecting strip 6 plays a 6. Rotate the function connected to the top of the knife holder 4.

The other end of the connecting strip 6 is rotatably connected with a sliding sleeve 7 through a second connecting mechanism. The second connecting mechanism includes a set of second connecting plates 15. The bottom of the second connecting plate 15 is fixedly connected to the top of the sliding sleeve 7. A second connecting shaft 16 is fixedly connected between the second connecting plates 15, and the connecting strip 6 is slidably connected to the surface of the second connecting shaft 16. By arranging the second connecting plate 15 and the second connecting shaft 16, the connecting strips The function of connecting the plate 6 and the top of the sliding sleeve 7 in rotation.

The sliding sleeve 7 is slidably connected to the surface of the cutter bar 1, the two sides of the sliding sleeve 7 are fixedly connected with a fixed block 8, and the top of the two fixed blocks 8 are fixedly connected with a connecting plate 9 through an elastic mechanism, and the elastic mechanism includes a telescopic rod 17. , the two ends of the telescopic rod 17 are fixedly connected with the bottom of the connecting plate 9 and the top of the fixed block 8 respectively, the surface of the telescopic rod 17 is sleeved with a return spring 18, and the two ends of the return spring 18 are respectively connected with the bottom of the connecting plate 9 and fixed The top of the block 8 is fixedly connected, and by arranging a telescopic rod 17 and a return spring 18, it plays the role of restoring the position of the connecting plate 9, and can be elastically contracted.

The top of the connecting plate 9 is fixedly connected with a pull ring 10, and the pull ring 10 is provided to facilitate pulling the connecting plate 9. The bottom of the connecting plate 9 is fixedly connected with a connecting pin 11, and the bottom of the connecting pin 11 penetrates the sliding sleeve 7 and Extending to its interior, the surface of the tool bar 1 is provided with a connecting hole 12 for the connecting pin 11 to slide and connect, and the sliding sleeve 7 is positioned on the tool bar 1 through the sliding connection between the connecting pin 11 and the connecting hole 12, and the sliding sleeve 7 is connected by The strip 6 restrains the position of the knife seat 4 to adjust the angle, thereby positioning the position of the knife head 5. When the angle needs to be adjusted, the connecting plate 9 is pulled through the pull ring 10, thereby driving the connecting pin 11 to leave the connecting hole 12. Release the hand to the next connection hole 12 position, and under the action of the elastic mechanism, the connection plate 9 pulls the connection pin 11 to be slidably connected to the connection hole 12, and the angle adjustment is completed.

Working principle: The sliding sleeve 7 is positioned on the cutter bar 1 through the sliding connection between the connecting pin 11 and the connecting hole 12 , and the sliding sleeve 7 is restrained by the connecting strip 6 to restrain the position of the cutter seat 4 to adjust the angle, thereby positioning the cutter head 5 When the angle needs to be adjusted, pull the connecting plate 9 through the pull ring 10, so as to drive the connecting pin 11 away from the connecting hole 12, move to the next connecting hole 12 position, release the hand, and connect the plate 9 under the action of the elastic mechanism Pulling the connecting pin 11 and connecting the connecting hole 12 in a sliding connection, the adjustment of the angle is completed, and there is no need to twist the parts with tools, which facilitates the staff to adjust the angle of the cutter head 5 on the riving knife, and reduces the difficulty of adjusting the angle of the cutter head 5.

The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions describe only the principles of the present invention. There are various changes and improvements that fall within the scope of the claimed invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. an angle-adjustable riving knife, comprising a knife rod (1), characterized in that the end of the knife rod (1) is fixedly connected with a connecting frame (2), and the inner wall of the connecting frame (2) A fixed shaft (3) is fixedly connected to the upper surface, a knife seat (4) is slidably connected to the surface of the fixed shaft (3), and a knife head (5) is fixedly connected to the bottom of the knife seat (4). The top of (4) is rotatably connected with a connecting strip (6) through the first connecting structure, and the other end of the connecting strip (6) is rotatably connected with a sliding sleeve (7) through a second connecting mechanism, and the sliding sleeve ( 7) Slidingly connected to the surface of the cutter bar (1), both sides of the sliding sleeve (7) are fixedly connected with a fixing block (8), and the tops of the two fixing blocks (8) are fixedly connected together by an elastic mechanism There is a connecting plate (9), a pull ring (10) is fixedly connected to the top of the connecting plate (9), a connecting pin (11) is fixedly connected to the bottom of the connecting plate (9), and the connecting pin (11) The bottom of the blade penetrates the sliding sleeve (7) and extends to the inside thereof, and the surface of the cutter bar (1) is provided with a connection hole (12) for the connection pin (11) to be slidably connected. 2. The angle-adjustable riving knife according to claim 1, wherein the first connecting mechanism comprises a group of first connecting plates (13), and the bottom of the first connecting plate (13) It is fixedly connected to the top of the knife seat (4), a first connecting shaft (14) is fixedly connected between the two first connecting plates (13), and the connecting strip (6) is slidably connected to the first connecting shaft (14) surface. 3. The angle-adjustable riving knife according to claim 1, wherein the second connecting mechanism comprises a group of second connecting plates (15), and the bottom of the second connecting plate (15) It is fixedly connected to the top of the sliding sleeve (7), a second connecting shaft (16) is fixedly connected between the two second connecting plates (15), and the connecting strips (6) are slidably connected to the second connecting shaft (16) surface. 4. The angle-adjustable riving knife according to claim 1, wherein the elastic mechanism comprises a telescopic rod (17), and two ends of the telescopic rod (17) are respectively connected to the connecting plate (9) The bottom of the telescopic rod (17) is fixedly connected with the top of the fixing block (8), the surface of the telescopic rod (17) is sleeved with a return spring (18), and the two ends of the return spring (18) are respectively connected with the bottom of the connecting plate (9). It is fixedly connected with the top of the fixing block (8). 5. A kind of riving knife with adjustable angle according to claim 1, is characterized in that, described connecting hole (12) is opened on the top of cutter bar (1), and the length direction of extension cutter bar (1) is linear arrangement.

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