A bottom plate rotating structure of a jigsaw and a jigsaw

Abstract

The utility model discloses a bottom plate rotating structure of curve saw which solves the problem of unstable connection between the clamping structure adjusting rotating angle in the bottom plate of the existing curve saw and the connecting part of the shell, and provides a bottom plate rotating structure of curve saw, which comprises a bottom plate, a transition piece of metal material for connecting with the shell of the curve saw and a pressing piece, the bottom plate and the transition piece are mutually pasted through the cylindrical camber, the pressing piece is arranged on the side of the bottom plate away from the curve saw through the bolt and clamps and fixes the bottom plate on the transition piece, the clamping structure for avoiding mutual rotation is further arranged between the bottom plate and the transition piece, and the connecting relationship and the clamping relationship between the bottom plate and the transition piece are more stable and are not easy to deform and fail.

Description

Technical Field

[0001] This utility model relates to the field of jigsaw technology, and in particular to a base plate rotation structure for a jigsaw and the jigsaw itself. Background Technology

[0002] A jigsaw is an electric tool that uses a motor to drive a saw blade in reciprocating motion to achieve a cutting effect. A base plate is located near the saw blade in a jigsaw; this base plate rests against the cutting surface, facilitating control of the jigsaw's direction of travel and cutting action. Due to the required cutting angle, the base plate of a jigsaw is usually designed to rotate, as shown in patent application publication number CN118218673A. However, in existing jigsaws, the base plate is typically directly connected to the outer casing by bolts, and a small metal piece is provided on the outer casing to engage with the base plate, facilitating angle fixation. Furthermore, the outer casing of a jigsaw is usually made of plastic. Therefore, prolonged operation in a vibrating environment can easily cause the connection between the metal piece and the outer casing to loosen or deform, affecting the angular stability of the base plate during cutting. Thus, a jigsaw with a stable and robust rotating base plate is needed. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a base plate rotation structure for a jigsaw.

[0004] To solve the above problems, the present invention adopts the following solution:

[0005] A base plate rotation structure for a jigsaw includes a base plate, a metal transition piece for connecting with the jigsaw housing, and a clamping piece; the base plate and the transition piece are fitted together by a cylindrical arc surface; the clamping piece is bolted to the side of the base plate away from the jigsaw, clamping and fixing the base plate to the transition piece; a snap-fit ​​structure is also provided between the base plate and the transition piece to prevent the base plate from deflecting relative to the transition piece.

[0006] Furthermore, the clamping component includes a clamping plate that fits against the inner side of the cylindrical arc surface of the base plate and a clamping bolt; the clamping bolt passes through the clamping plate and the base plate and is threadedly connected to the transition component.

[0007] Furthermore, the base plate is provided with an elongated hole corresponding to the clamping bolt; when the base plate rotates along the arc surface that fits with the transition plate, the clamping bolt moves within the elongated hole.

[0008] Furthermore, the snap-fit ​​structure includes a first tooth structure disposed on the base plate and a second tooth structure disposed on the transition member; the first tooth structure and the second tooth structure snap-fit ​​each other.

[0009] Furthermore, the base plate is made of ferrous or aluminum-containing metal.

[0010] Furthermore, the base plate is made of iron-containing metal; the first tooth structure is located on the front or rear edge of the base plate; and a second tooth structure corresponding to the position of the first tooth structure is provided on the transition piece.

[0011] Furthermore, the base plate is made of aluminum-containing metal; the first tooth structure is located on the outer side of the cylindrical arc surface in the base plate, and the first tooth structure includes several outwardly protruding triangular teeth with a certain thickness; a second tooth structure corresponding to the position of the first tooth structure is provided on the inner side of the arc surface on the transition piece.

[0012] Furthermore, the base plate is provided with two first tooth structures, and the transition piece is also provided with two second tooth structures.

[0013] Furthermore, the outer side of the cylindrical arc surface of the base plate is also provided with angle scale lines.

[0014] A jigsaw includes the aforementioned base plate rotating structure and a housing; a transition member in the base plate rotating structure is fixedly disposed inside the housing, and the cylindrical arc surface of the transition member faces the outside of the housing; the base plate is fixedly connected to the transition member.

[0015] The beneficial effects of this utility model are as follows:

[0016] By setting and fixing a transition piece between the base plate and the housing, and by engaging the base plate with the transition piece, the base plate can be adjusted, and the connection and engagement between the base plate and the transition piece are more stable and less prone to deformation and failure.

[0017] By setting a base plate made of ferrous or aluminum metal, and matching the placement of the respective snap-fit ​​structures, strength requirements are met while the types of materials that can be used are expanded. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the jigsaw in Example 1;

[0019] Figure 2 This is a schematic diagram of the rotating structure of the aluminum-containing metal base plate inside the shell of Example 1;

[0020] Figure 3 This is an exploded view of the rotating structure of the aluminum-containing metal base plate in Example 1;

[0021] Figure 4 This is a schematic diagram of the transition component corresponding to the aluminum-containing metal base plate in Example 1;

[0022] Figure 5This is an exploded view of the rotating structure of the base plate made of iron-containing metal in Example 1;

[0023] Figure 6 This is a schematic diagram of the transition piece corresponding to the iron-containing metal base plate in Example 1;

[0024] Explanation of the symbols in the attached diagram: base plate 1, angle scale line 11, transition piece 2, clamping piece 3, clamping plate 31, clamping bolt 32, elongated hole 33, snap-fit ​​structure 4, first tooth structure 41, second tooth structure 42. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] Example 1:

[0028] like Figures 1-6As shown, a base plate rotating structure for a jigsaw includes a base plate 1, a transition piece 2 for connecting with the jigsaw housing, and a clamping piece 3. The base plate 1 and the transition piece 2 are fitted together by a cylindrical arc surface. It should be noted that the axis of the cylinder corresponding to the arc surface faces the jigsaw blade, and this axis is consistent with the direction of movement of the jigsaw during cutting. The clamping piece 3 is fixedly installed on the side of the base plate 1 away from the jigsaw by a screw-on bolt, clamping the base plate 1 onto the transition piece 2. The transition piece 2 is made of metal, such as aluminum alloy, which has higher load strength than plastic. A snap-fit ​​structure 4 is also provided between the base plate 1 and the transition piece 2 to prevent the base plate from deflecting relative to the transition piece. The snap-fit ​​structure 4 usually uses interlocking teeth. In this example, the snap-fit ​​structure 4 includes a first tooth structure 41 provided on the base plate 1 and a second tooth structure 42 provided on the transition piece 2. The first tooth structure 41 and the second tooth structure 42 are interlocked. When the bolts are loosened, the clamping part 3 loosens the base plate 1, creating a gap between the base plate 1 and the transition part 2. At this time, the first tooth structure 41 and the second tooth structure 42 in the snap-fit ​​structure 4 separate from each other, allowing the base plate 1 to rotate. After adjusting the angle, tighten the bolts to fix the base plate 1 and the transition part 2.

[0029] The clamping component 3 includes a clamping plate 31 that fits against the inner side of the cylindrical arc surface of the base plate 1 and a clamping bolt 32; the clamping bolt 32 passes through the clamping plate 31, the base plate 1 and is threadedly connected to the transition component 2; the base plate 1 is provided with an elongated hole 33 corresponding to the clamping bolt 32; when the base plate 1 rotates along the arc surface that fits against the transition plate, the clamping bolt 32 moves within the elongated hole 33, limiting the range of rotation adjustment angle of the base plate 1; it should be noted that in some other embodiments, the clamping bolt 32 can also be directly set to clamp the base plate 1 and the transition component 2.

[0030] The base plate 1 is made of either ferrous or aluminum metal; ferrous metal has higher physical hardness, while aluminum metal has lower physical hardness. When the base plate 1 is made of ferrous metal, the first tooth structure 41 is located at the front or rear edge of the base plate 1. This ensures that the thickness of the first tooth structure 41 is the same as the thickness of the base plate 1, and the first tooth structure 41 can be formed by cutting, resulting in lower cost. A second tooth structure 42 corresponding to the position of the first tooth structure 41 is provided on the transition piece 2. In addition, the ferrous metal base plate 1 has two elongated holes 33, which correspond to the two clamping bolts 32. Combined with the first tooth structure 41 located at the edge, this can prevent the fixed base plate 1 from deflecting to a certain extent. When the base plate 1 is made of aluminum-containing metal, the first tooth structure 41 is located on the outer side of the cylindrical arc surface in the base plate 1. The first tooth structure 41 includes several outwardly protruding triangular teeth with a certain thickness. The thickness of the first tooth structure 41 can be made thicker, even thicker than the thickness of the base plate 1, through processes such as die casting, to enhance the deformation resistance of the first tooth structure 41 and increase its service life. A second tooth structure 42 corresponding to the position of the first tooth structure 41 is provided on the inner side of the arc surface on the transition piece 2. In addition, two first tooth structures 41 are provided on the aluminum-containing base plate 1, and two second tooth structures 42 are also provided on the transition piece 2 to stabilize the base plate 1 and prevent it from deflecting.

[0031] The outer side of the cylindrical arc surface of the base plate 1 is also provided with angle scale lines 11, including angle scale lines from 0° to 45°, wherein a scale line is provided at 5° intervals and a vertical mark is provided at 15° intervals.

[0032] A jigsaw includes the aforementioned rotating base plate 1 structure and a housing; a transition piece 2 in the rotating base plate 1 structure is fixedly disposed inside the housing, and the cylindrical arc surface of the transition piece 2 faces the outside of the housing; the base plate 1 and the transition piece 2 are fixedly connected.

[0033] During implementation, by setting and fixing a transition piece 2 between the base plate 1 and the shell, and by directly engaging the base plate 1 with the transition piece 2, and by fixing the transition piece to the base plate, the base plate 1 can be adjusted in deflection angle. On the other hand, the connection and engagement relationship between the base plate 1 and the transition piece 2 are more stable and less prone to failure. By setting a base plate 1 made of ferrous metal or aluminum metal, and with the respective engagement structure 4 positioned, the strength requirements are met while the types of materials that can be used are enriched.

[0034] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A base plate rotating structure for a jigsaw, comprising a base plate (1), characterized in that, It also includes a metal transition piece (2) for connecting with the jigsaw housing and a clamping piece (3); the base plate (1) and the transition piece (2) are fitted together by a cylindrical arc surface; the clamping piece (3) is fixedly installed on the side of the base plate (1) away from the jigsaw by bolts, clamping the base plate (1) onto the transition piece (2); a snap-fit ​​structure (4) is also provided between the base plate (1) and the transition piece (2) to prevent the base plate from deflecting relative to the transition piece.

2. A base plate turning structure for a curve saw according to claim 1, wherein The clamping member (3) includes a clamping plate (31) that fits against the inner side of the cylindrical arc surface of the base plate (1) and a clamping bolt (32); the clamping bolt (32) passes through the clamping plate (31), the base plate (1) and is threadedly connected to the transition member (2).

3. A jib rotation structure for a curve saw according to claim 2, wherein The base plate (1) is provided with an elongated hole (33) corresponding to the clamping bolt (32); when the base plate (1) rotates along the arc surface that fits with the transition plate, the clamping bolt (32) moves in the elongated hole (33).

4. The blade-tilting structure of a jigsaw according to claim 1, wherein The snap-fit ​​structure (4) includes a first tooth structure (41) disposed on the base plate (1) and a second tooth structure (42) disposed on the transition member (2); the first tooth structure (41) and the second tooth structure (42) snap-fit ​​each other.

5. A jib rotation structure for a curve saw according to claim 4, wherein The base plate (1) is made of iron-containing metal or aluminum-containing metal.

6. A jib rotation structure for a curve saw according to claim 5, wherein The base plate (1) is made of iron-containing metal; the first tooth structure (41) is located on the front or rear edge of the base plate (1); a second tooth structure (42) corresponding to the position of the first tooth structure (41) is provided on the transition piece (2).

7. The blade rotation structure of a jigsaw according to claim 4, wherein The base plate (1) is made of aluminum metal; the first tooth structure (41) is located on the outside of the cylindrical arc surface in the base plate (1), and the first tooth structure (41) includes several outwardly protruding triangular teeth with a certain thickness; a second tooth structure (42) corresponding to the position of the first tooth structure (41) is provided on the inner side of the arc surface on the transition piece (2).

8. A jib rotation structure of a curve saw according to claim 7, wherein The base plate (1) is provided with two first tooth structures (41), and the transition piece (2) is also provided with two second tooth structures (42).

9. The blade rotation structure of a curve saw according to claim 1, wherein Angle scale lines (11) are also provided on the outer side of the cylindrical arc surface of the base plate (1).

10. A jigsaw characterized in that, The base plate rotation structure according to any one of claims 1 to 9 is further comprising a housing; the transition member (2) in the base plate rotation structure is fixedly disposed inside the housing, and the cylindrical arc surface in the transition member (2) faces the outside of the housing; the base plate (1) is fixedly connected to the transition member (2).

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