A blade holder for a saber saw and a saber saw.

Abstract

This utility model discloses a blade holder for a saber saw, comprising: a support plate; a blade holder connected to the support plate, wherein the blade holder has multiple first positioning grooves; a limiting plate connected to the gearbox lower cover of the saber saw, the limiting plate forming a receiving cavity, the blade holder being slidably disposed in the receiving cavity, and the limiting plate having a second positioning groove; and a limiting block comprising a pressure block and an elastic element disposed between the pressure block and the gearbox lower cover, the upper end of the pressure block having a limiting groove, the limiting groove comprising an arc-shaped concave portion and a flat portion, the flat portion being located on both sides of the arc-shaped concave portion, and an elastic element being disposed between each flat portion and the gearbox lower cover, the pressure block being positioned within the first positioning groove and the second positioning groove. The concave portion of the pressure block in this utility model is positioned with the arc-shaped bottom of the gearbox lower cover, reducing the vertical space of the entire blade holder and improving the integration of the blade holder with the main unit.

Description

Technical Field

[0001] This utility model relates to the field of saber saw technology, specifically to a blade holder and a saber saw. Background Technology

[0002] In existing technologies, the extension and retraction of the blade holder in a saber saw mainly employs a milling method using a rotating shaft, with the milled portion locking within a retaining groove. However, this structure occupies a significant amount of space, making it unsuitable for products requiring a compact form factor. This operational inconvenience is particularly pronounced in scenarios where frequent adjustments to the blade holder length are necessary to adapt to different cutting tasks (such as cutting in confined spaces or on materials of varying thicknesses), failing to meet users' demands for convenience and efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a tool holder and a saber saw for a saber saw, which can solve the problem of achieving the telescopic function of the tool holder in small-sized products.

[0004] This utility model provides a blade holder for a saber saw, which is set in the lower housing and includes: a support plate; A tool holder, which is connected to the support plate, and a plurality of first positioning grooves are provided on the tool holder; A limiting plate is connected to the lower cover of the gearbox of the saber saw. The limiting plate forms a receiving cavity. The blade holder is slidably disposed in the receiving cavity. A second positioning groove is provided on the limiting plate. A limiting block, comprising a pressure block and an elastic element disposed between the pressure block and the lower cover of the gearbox. The upper end of the pressure block is provided with a limiting groove, which includes an arc-shaped concave portion and a flat portion. The flat portion is located on both sides of the arc-shaped concave portion. An elastic element is provided between each flat portion and the lower cover of the gearbox. The pressure block is positioned in the first positioning groove and the second positioning groove.

[0005] Furthermore, the first elastic element is disposed on the left side of the arc-shaped recess, and the second elastic element is disposed on the right side of the arc-shaped recess.

[0006] Furthermore, the limiting block also includes a connecting post, a first limiting block and a second limiting block. The first limiting block is provided at the lower end of the pressing block, the second limiting block is provided at the lower end of the first limiting block, and the connecting post is provided at the lower end of the second limiting block. The limiting plate is provided with a through hole, and one end of the connecting post passes through the through hole.

[0007] Furthermore, the connecting post connects to the button, which is housed within the through hole.

[0008] Furthermore, the limiting plate includes a base plate and side plates extending upward from both sides of the base plate, the receiving cavity is composed of the base plate and the side plates, the through hole is disposed on the base plate, and the second positioning groove is disposed on the side plate.

[0009] Furthermore, an elongated groove is provided on the tool holder, the width of which is in the ratio of 30% to 60% of the width of the tool holder. One end of the connecting column passes through the elongated groove, and multiple first positioning grooves are spaced apart on both sides of the tool holder.

[0010] Furthermore, both the second positioning groove and the first positioning groove are rectangular grooves, and the pressing block is a rectangular block.

[0011] A saber saw includes the aforementioned blade holder; an upper housing and a lower housing, the lower housing being provided with a gearbox lower cover, the gearbox lower cover protruding outward to form an arc-shaped bottom, the gearbox lower cover portion being recessed inward to form a limiting cavity, two limiting cavities being respectively provided on both sides of the arc-shaped bottom, the top of each limiting cavity being higher than the arc-shaped bottom, and the blade shank portion being accommodated inside the arc-shaped bottom.

[0012] The beneficial effects of this utility model are: By setting the lower cover of the gearbox to an irregular shape, including a limiting cavity and an arc-shaped bottom, the positioning and elastic elements can be restored to different positions on the lower cover of the gearbox, reducing the space of the button in the vertical direction and improving the integration of the tool holder and the main unit.

[0013] The first elastic element is located on the left side of the arc-shaped recess, and the second elastic element is located on the right side of the arc-shaped recess. Users can easily unlock the tool holder by simply pressing a button, achieving dual positioning and ensuring that the button will not loosen due to vibration or impact, thus maintaining the accuracy of the tool holder adjustment.

[0014] The outer surface of the button is flush with the outer surface of the lower housing, creating a hidden button structure that takes up little space. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the utility model saber saw; Figure 2 This is a cross-section of the utility model saber saw. Figure 1 ; Figure 3 This is a cross-section of the utility model saber saw. Figure 2 ; Figure 4 This utility model is a saber saw explosion. Figure 1 ; Figure 5 This utility model is a saber saw explosion. Figure 2 ; Figure 6This is a top view of the utility model saber saw; Figure 7 This is a cross-sectional view of the saber saw of this utility model at point AA; Explanation of reference numerals in the attached drawings: support plate 2, tool holder 3, first positioning groove 31, limiting plate 4, receiving cavity 41, second positioning groove 42, limiting block 6, pressure block 61, limiting groove 611, arc-shaped recess 612, flat part 613, gearbox lower cover 5, first elastic element 621, second elastic element 622, connecting column 63, first limiting block 64, second limiting block 65, through hole 43, button 7, bottom plate 44, side plate 45, long groove 32, saber saw 8, arc bottom 51, limiting cavity 52, lower housing 2. Detailed Implementation

[0016] The present invention will now be described in detail with reference to the accompanying drawings: like Figure 1 and Figure 2 As shown, a blade holder for a saber saw, disposed within a lower housing, includes: a support plate 2; a blade holder 3 connected to the support plate 2, with multiple first positioning grooves 31 on the blade holder 3; a limiting plate 4 connected to the gearbox lower cover 5 of the saber saw, the limiting plate 4 and the gearbox lower cover 5 forming a receiving cavity 41, the blade holder 3 being slidably disposed in the receiving cavity 41, with a second positioning groove 42 on the limiting plate 4; and a limiting block 6, the limiting block 6 including a pressure block 61 and an elastic element 62 disposed between the pressure block 61 and the gearbox lower cover 5, the upper end of the pressure block 61 having a limiting groove 611, the limiting groove 611 including an arc-shaped recess 612 and a flat surface 613, the flat surface 613 being located on both sides of the arc-shaped recess 612. The arc-shaped recess 612 is configured as an arc-shaped notch in the limiting groove 611. Each flat portion 613 is provided with an elastic element between itself and the gearbox lower cover 5, and the pressure block 61 is positioned in the first positioning groove 31 and the second positioning groove 42.

[0017] Furthermore, a first elastic element 621 is disposed on the left side of the arc-shaped recess 612, and a second elastic element 622 is disposed on the right side of the arc-shaped recess 612. The elastic elements 62 are helical springs, which provide a downward elastic force to the pressure block 61.

[0018] like Figure 6 and Figure 7 As shown, the limiting block 6 also includes a connecting post 63, a first limiting block 64 and a second limiting block 65. The first limiting block 64 is provided at the lower end of the pressing block 61, the second limiting block 65 is provided at the lower end of the first limiting block 64, the connecting post 63 is provided at the lower end of the second limiting block 65, and the limiting plate 4 is provided with a through hole 43. One end of the connecting post 63 passes through the through hole 43.

[0019] To reduce the size of the tool holder, the connecting post 63 connects to the button 7, which is housed in the through hole 43. The outer surface of the button 7 is flush with the outer surface of the lower housing.

[0020] like Figure 4 As shown, the limiting plate 4 includes a base plate 44 and side plates 45 extending upward from both sides of the base plate 44. The receiving cavity 41 is composed of the base plate 44 and the side plates 45. The through hole 43 is provided on the base plate 44, and the second positioning groove 42 is provided on the side plate 45.

[0021] like Figure 5 As shown, a long groove 32 is provided on the tool holder 3. The width of the long groove 32 is in the ratio of 30% to 60% of the width of the tool holder 3. One end of the connecting column 63 passes through the long groove 32. A plurality of first positioning grooves 31 are spaced apart on both sides of the tool holder 3.

[0022] Furthermore, both the second positioning groove 42 and the first positioning groove 31 are rectangular grooves, and the pressing block 61 is a rectangular block.

[0023] like Figure 3 As shown, in order to maintain the restoring force of the elastic element within a compact space, and to ensure the tactile feel of the button and the precision of the blade holder adjustment, a saber saw 8 includes the aforementioned blade holder; an upper housing and a lower housing. The lower housing is provided with a gearbox lower cover 5, which protrudes outward to form an arc-shaped bottom 51. A portion of the gearbox lower cover 5 is recessed inward to form a limiting cavity 52. ​​Two limiting cavities 52 are respectively provided on both sides of the arc-shaped bottom 51, and the top of each limiting cavity 52 is higher than the arc-shaped bottom 51. An elastic element 62 is provided inside the limiting cavity 52, and an arc-shaped recess 612 is positioned outside the arc-shaped bottom 51. The blade shank is accommodated inside the arc-shaped bottom 51.

[0024] The operating principle of this utility model is as follows: When the length of the blade holder 3 needs to be adjusted, the user simply presses button 7 and pushes the pressure block 61 upward through the connecting column 63. At this time, the pressure block 61 will disengage from the locking of the first positioning groove 31 and the second positioning groove 42, and the blade holder 3 can move freely within the receiving cavity 41 along the length direction of the saber saw.

[0025] When the tool holder 3 is adjusted to the required length, release the button 7. Under the action of the elastic element, the pressure block 61 automatically springs back and simultaneously locks into the nearest first positioning groove 31 and second positioning groove 42, thereby completing the quick locking. After locking, the button 7 is hidden in the through hole 43.

[0026] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A blade holder for a saber saw, disposed within a lower housing, characterized in that: include: Support plate; A tool holder, which is connected to the support plate, and a plurality of first positioning grooves are provided on the tool holder; A limiting plate is connected to the lower cover of the gearbox of the saber saw. The limiting plate forms a receiving cavity. The blade holder is slidably disposed in the receiving cavity. A second positioning groove is provided on the limiting plate. A limiting block, comprising a pressure block and an elastic element disposed between the pressure block and the lower cover of the gearbox. The upper end of the pressure block is provided with a limiting groove, which includes an arc-shaped concave portion and a flat portion. The flat portion is located on both sides of the arc-shaped concave portion. An elastic element is provided between each flat portion and the lower cover of the gearbox. The pressure block is positioned in the first positioning groove and the second positioning groove.

2. The tool holder according to claim 1, characterized in that: The first elastic element is located on the left side of the arc-shaped concave portion, and the second elastic element is located on the right side of the arc-shaped concave portion.

3. The tool holder according to claim 2, characterized in that: The limiting block also includes a connecting post, a first limiting block and a second limiting block. The first limiting block is provided at the lower end of the pressing block, the second limiting block is provided at the lower end of the first limiting block, and the connecting post is provided at the lower end of the second limiting block. The limiting plate is provided with a through hole, and one end of the connecting post passes through the through hole.

4. The tool holder according to claim 3, characterized in that: The connecting post connects to the button, which is housed in the through hole. The outer surface of the button is flush with the outer surface of the lower housing.

5. The tool holder according to claim 4, characterized in that: The limiting plate includes a base plate and side plates extending upward from both sides of the base plate. The receiving cavity is composed of the base plate and the side plates. The through hole is disposed on the base plate, and the second positioning groove is disposed on the side plate.

6. The tool holder according to claim 5, characterized in that: The tool holder has an elongated groove, the width of which is in the ratio of 30% to 60% of the width of the tool holder. One end of the connecting column passes through the elongated groove, and multiple first positioning grooves are spaced apart on both sides of the tool holder.

7. The tool holder according to claim 6, characterized in that: Both the second positioning groove and the first positioning groove are rectangular grooves, and the pressing block is a rectangular block.

8. A saber saw, characterized in that: The tool holder includes any one of claims 1 to 7; an upper housing and a lower housing, the lower housing being provided with a gearbox lower cover, the gearbox lower cover protruding outward to form an arc-shaped bottom, the gearbox lower cover portion being recessed inward to form a limiting cavity, the two limiting cavities being respectively provided on both sides of the arc-shaped bottom, the top of each limiting cavity being higher than the arc-shaped bottom, and the tool shank portion being accommodated inside the arc-shaped bottom.

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