CN201604136U - Guides for power tools - Google Patents

Abstract

The utility model relates to a guiding device used on an electric tool, which includes: a main guiding element, an auxiliary guiding element, the auxiliary guiding element includes a positioning block, and the main guiding element includes a groove for accommodating the positioning block, wherein the guiding device also includes It includes a fixing device that can fix the auxiliary guiding element to the main guiding element, the positioning block includes a tapered edge, and the fixing device includes a tapered surface that can cooperate with the tapered inclined edge of the positioning block. Through the cooperation of the tapered surface and the tapered inclined edge, the main guiding element and the auxiliary guiding element can be quickly locked and separated at any position, so that the positional relationship between the auxiliary guiding element and the main guiding element can be easily adjusted during operation.

Description

Guides for power tools

technical field

The utility model relates to a guide device used for an electric tool.

Background technique

Hand-held power tools, especially those that use circular blades for cutting, can be difficult to guide in a straight path unless the operator is very experienced. But even then, it is difficult to achieve a perfect, straight cut by manual operation alone.

In order to guide the hand-held saw to make straight cuts on wood boards or other materials, various guide devices or clamping devices for the hand-held saw have been proposed. In the prior art, there are two different types of guide devices, the assembled type and the integral type. Assembled guides consist of multiple segmented guide plates of different lengths. Users can freely combine guide plates according to their needs when using them, and choose guide plates with different lengths to be fixed and spliced together for use. When packaging and transporting, they are also They can be disassembled and placed individually, reducing the size of the package and reducing shipping costs. The integral guide device is an integral guide device with a fixed length, usually made of extruded aluminum material, and has high guide precision.

Utility model content

The purpose of the utility model is to provide an assembled guide device that can realize fast splicing.

In order to achieve this purpose, the guiding device of the present invention includes: first and second guiding elements with the same structure, the first and second guiding elements include a first end and a second end, and the first end includes a An outwardly protruding tongue, the second end of which includes a groove cooperable with the tongue, one of the tongue and groove being ribbed and the other of the tongue and groove being Slots are formed to cooperate with the ribs, wherein the guide is also installed on the guide when the tongue portion of one of the first and second guide elements is inserted into the groove of the other of the first and second guide elements Locking means for securing the first and second guide elements together, the locking means comprising a hole formed in one of the tongue and groove, and the other formed in the tongue and groove A bump on the top.

Through the cooperation between the rib and the slot and the cooperation between the hole and the protrusion, the first and second guide elements in the guide device of the present invention can be quickly spliced together or quickly released, so that it is convenient for the user to use during operation. At the same time, it also facilitates the packing and transportation of the guiding device.

Another object of the present utility model is to provide a guide device that can quickly realize the fixing between the auxiliary guide plate and the guide plate.

In order to achieve this goal, the guiding device of the present utility model includes: a main guiding element, an auxiliary guiding element, the auxiliary guiding element includes a positioning block, the main guiding element includes a groove that can accommodate the positioning block, wherein the guiding device also includes a Fixing device that allows the auxiliary guide element to be fixedly connected to the main guide element.

The positioning block includes a tapered edge, and the fixing device includes a tapered surface that can cooperate with the tapered edge of the positioning block.

Through the cooperation of the tapered surface and the tapered inclined edge, the main guiding element and the auxiliary guiding element can be quickly locked and separated at any position, so that the positional relationship between the auxiliary guiding element and the main guiding element can be easily adjusted during operation.

The fixing device includes a positioning element and a locking element.

The positioning block includes first and second sides, the first side is adjacent to the positioning element, and the second side is adjacent to the locking element and includes a tapered groove.

The positioning element includes a steel ball and an elastic element acting on the steel ball.

A further object of the present utility model is to provide a guide device including an angle indicating device, which can quickly determine the angle at which the electric tool installed on the guide device performs oblique cutting.

In order to achieve this purpose, the guiding device of the present utility model comprises: a main guiding element, an auxiliary guiding element, the auxiliary guiding element comprises a positioning block, and the main guiding element comprises a groove capable of accommodating the positioning block, wherein the positioning block is provided with Angle indicator mark.

Through the angle indicator mark provided on the auxiliary guide element, the oblique cutting positioning at a certain angle can be quickly realized, which improves the convenience and efficiency of the user's operation.

Description of drawings

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Fig. 1 is a schematic diagram of a guide device that can be used in combination with a hand-held saw according to a preferred embodiment of the present invention.

Fig. 2 is a schematic view of the guiding device in Fig. 1, wherein the first guiding plate and the second guiding plate are separated.

Fig. 3 is a schematic diagram of the guiding device in Fig. 1, wherein the first guiding plate and the second guiding plate are spliced together.

Fig. 4 is a schematic diagram of the guide device in Fig. 1, showing the fixing device between the auxiliary guide plate and the first guide plate.

Fig. 5 is a schematic view of another embodiment of the fixing device between the auxiliary guide plate and the first guide plate.

FIG. 6 is a partially cutaway view of the fixing device in FIG. 5 .

Detailed ways

Fig. 1 shows a guide device 10 in a preferred embodiment of the present invention, the guide device 10 can guide the hand-held saw 20 installed thereon to cut the workpiece along a straight line, here the hand-held electric circular saw is used as For example, of course, the guide device 10 can also be used in combination with power tools such as electric wood milling, saber saw and the like. The handheld electric circular saw 20 includes a casing 21 , a circular saw blade 22 installed in the casing 21 , and a bottom plate 23 pivotally connected to the casing. The lower surface of the bottom plate 23 includes an elongated slot 24 . On the upper surface of the guide 10 are included raised ridged ribs 19 . The ridge rib 19 cooperates with the elongated groove 24 , so that the electric circular saw 20 is mounted on the guide device 10 , and the electric circular saw 20 can slide back and forth on the guide device 10 along the ridge rib 19 .

As shown in Fig. 2 and Fig. 3, the guide device 10 in the utility model is made up of a pair of long and narrow guide plates 11,12. The guide plate 11 and the guide plate 12 have the same structure, and the structure of the guide plate 11 will be described now. The guide plate 11 is substantially rectangular and includes a pair of long sides 13 , 14 and two ends 15 , 16 . The end portion 15 has a tongue-shaped portion 17 protruding outwards. The tongue-shaped portion 17 includes a tapered upper surface 171 and a tapered lower surface 172 with a certain inclination. Upward and downward ribbed strips 173 , 174 are formed parallel to the ends 15 , 16 . A notch 175 is also formed at the outer edge of the tongue portion 17 . The end 16 is inwardly formed with a groove 18 that can cooperate with the tongue-shaped portion 17. The groove 18 has tapered surfaces 181, 182 that can cooperate with the tapered upper surface 171 and the lower surface 172 of the tongue-shaped portion. , On the tapered surfaces 181 and 182 are formed slots 183 , 184 which cooperate with the ribbed strips 173 , 174 . Those skilled in the art can easily imagine that the rib-like strips with protruding tapered surfaces are formed on the tapered surfaces 181, 182 of the groove 18, and the ribs are formed on the tapered upper surface 171 and the tapered lower surface 172 of the tongue part. Slots for strip fit are also possible. In this embodiment, by inserting the tongue portion 17 of the guide plate 11 into the groove 18 of the guide plate 12, or inserting the tongue portion 17 of the guide plate 12 into the groove 18 of the guide plate 11, the Guide plates 11 and 12 are spliced together. A locking device 30 is also installed on the guide plates 11, 12 for fixing the spliced guide plates 11, 12 together. The locking means 30 are fitted on the guide plates 11 , 12 close to the groove 18 . The locking device 30 includes a toggle button 31 , a spring 32 and a taper pin 33 . The taper pin 33 can fit into the notch 175 of the tongue portion 17 . The elastic force of the spring 32 pushes the taper pin 33 to move toward the notch 175 . In the splicing process, at first push the toggle button 31 backward against the elastic force of the spring 32, and the corresponding taper pin 33 moves in a direction away from the notch 175. After the taper pin 33 is completely removed from the notch 175, the tongue-shaped part of the guide plate 11 17 is inserted into the groove 18 of the guide plate 12, the toggle button 31 is released, and the taper pin 33 is inserted into the notch 175 under the force of the spring 32 to lock the guide plates 11 and 12 together. Of course, those skilled in the art can easily imagine that a hole is formed on the tongue portion 17 of one of the guide plates, and a protrusion protruding from the tapered surface of the groove is formed in the groove 18 of the other guide plate. The splicing and locking between the guide plates 11 and 12 can also be realized through the cooperation of the protrusions and the holes. Alternatively, a protrusion protruding from a tapered surface is formed on the tongue portion 17 of one of the guide plates, and a hole is formed in the groove 18 of the other guide plate to realize splicing and locking between the guide plates.

Referring now to Fig. 2 and Fig. 4, the guide device 10 disclosed in the utility model also includes an auxiliary guide plate 41, the auxiliary guide plate 41 can be connected with the guide plates 11, 12 and its position with respect to the guide plates 11, 12 can be adjusted , the auxiliary guide plate 41 is connected in the same manner as the guide plates 11 and 12, and here only the guide plate 11 is taken as an example for illustration. The side 14 of the guide plate 11 includes a plurality of elongated slots 141 , and one side of the auxiliary guide plate 41 includes a plurality of positioning blocks 43 insertable into the elongated slots 141 . The positioning block 43 includes a tapered edge 431 . A plurality of fixing devices 50 for fixing the auxiliary guide plate 41 to the guide 11 are installed on the position corresponding to the elongated groove 141 on the guide plate 11 . The fixing device 50 is a slider, and the slider 50 has a tapered surface 51 that can cooperate with the tapered edge 431 . The locking between the auxiliary guide plate 41 and the guide plate 11 is achieved by moving the slide block 50 toward the direction of the positioning block 43 so that the tapered surface 51 of the slide block 50 fits with the tapered edge 431 of the positioning block 43 . Correspondingly, moving the slider 50 in the opposite direction can separate the tapered surface 51 of the slider 50 from the tapered edge 431 of the positioning block 43, thereby releasing the auxiliary guide plate 41 from the guide plate 11, and the user can adjust it as required. The auxiliary guide plate 41 is relative to the position of the guide plates 11 , 12 and enables quick locking in this position.

5 and 6 show yet another embodiment of the fixing device 60 between the guide plate 11 and the auxiliary guide plate 41 . The fixing device 60 includes a positioning element 61 and a locking element 62 installed on the guide plate 11 . The positioning element 61 includes a steel ball 611 and a spring 612 . The locking element 62 is a toggle button, and its front end includes a tapered pin 621 . The positioning block 70 includes two parallel sides 71 , 72 parallel to the ends 15 , 16 of the guide plate 11 . When the auxiliary guide plate 41 is connected to the guide plate 11 , the first side 71 of the positioning block is adjacent to the positioning element 61 , and the second side 72 is adjacent to the locking element 62 . The first side 71 includes a plurality of slots 73 at a fixed distance from each other, and the second side 72 includes a plurality of tapered slots 74 corresponding to the slots 73 . The taper slots 74 cooperate with the taper pins 621 . When in use, first remove the taper pin 621 from the taper groove 74, then move the auxiliary guide plate 41 with respect to the guide plate 11 in a direction perpendicular to the lengthwise direction of the guide plate 11, and the steel ball 611 will bounce to the corresponding position under the action of the elastic force of the spring 612. In the slot 73, when the steel ball 611 bounces into the corresponding slot 73 at the desired position, push the toggle button 62 so that the taper pin 621 moves into the taper slot 74 under the drive of the toggle button to realize the auxiliary guide plate 41 and the guide plate 11. fixed connection between.

In the present invention, the positioning blocks 43, 70 may also be provided with a scale indicator mark 75, where the scale indicator mark is a kind of angle indicator mark, such as 0 degree, 22.5 degree and 45 degree. The role of the angle indicator mark is: when the electric circular saw needs to perform 45-degree oblique cutting, the user moves the auxiliary guide plate 41 with respect to the guide plates 11, 12 so that the sides 14 of the guide plates 11, 12 are at the same level as the 45-degree scale indicator mark. Alignment, then the auxiliary guide plate 41 is fixed to the guide plates 11, 12 at this position. At this time, the saw blade 22 can perform oblique cutting at 45 degrees under the guidance of the edge 76 of the auxiliary guide plate 41 . Here, the determination of the scale indicator mark is determined according to the different distances between the intersection line of the saw blade 22 and the edge 76 and the ridge rib 19 when the electric circular saw is performing oblique cutting at different angles, that is, the distance between the saw blade 22 and the edge 76 There is a one-to-one correspondence between the distance from the line of intersection to the ridge rib 19 and the angle at which the electric circular saw can cut obliquely. When the angle of oblique cutting of the electric circular saw changes, the distance from the intersection line of the saw blade 22 and the edge 76 to the ridge rib 19 will change accordingly, and the corresponding oblique cutting angle will be set on the positioning block 70 according to the changed distance value. Adjusting the positional relationship between the auxiliary guide plate and the guide plate according to the scale indicator mark 75 can quickly realize the oblique cutting positioning at a certain angle.

The specific embodiments described above are only to illustrate the concept and principle of the present utility model, and are not intended to limit the content of the present utility model. Those of ordinary skill in the art can appreciate that, in addition to the above-mentioned preferred specific implementation, the utility model also has many other alternatives or modified implementations, and these alternatives or modified implementations are still within the scope of the present utility model within. The protection scope of the utility model is determined by the claims.

Claims (9)

1. A guiding device for an electric tool, comprising: a main guiding element, an auxiliary guiding element, the auxiliary guiding element includes a positioning block, and the main guiding element includes a positioning block capable of accommodating the positioning block The slot is characterized in that the guide device further includes a fixing device capable of fixing the auxiliary guide element to the main guide element. 2. The guiding device for use on a power tool as claimed in claim 1, wherein said positioning block includes a tapered edge, and said fixing device includes an edge that can be inclined with the taper of said positioning block. Tapered faces with matching edges. 3. The guiding device for electric tools as claimed in claim 2, wherein said fixing device is a slider. 4. The guide device for electric tools according to any one of claims 1-3, characterized in that: the positioning block is provided with a scale indicator mark. 5. The guiding device for an electric tool as claimed in claim 1, wherein said fixing device comprises a positioning element and a locking element. 6. The guiding device for an electric tool as claimed in claim 5, wherein the positioning block comprises a first side and a second side, and the first side is adjacent to the positioning element, The second side is adjacent to the locking element and includes a tapered groove. 7. The guiding device for an electric tool as claimed in claim 6, wherein said positioning element comprises a steel ball and an elastic element acting on said steel ball. 8. The guiding device for electric tools as claimed in claim 7, characterized in that: said locking element is a dial, said dial includes a taper pin, said taper pin is connected to said first The taper grooves on the two sides match. 9. The guiding device for electric tools according to any one of claims 5-8, characterized in that: the positioning block is provided with a scale indicating mark.

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