Bottom plate assembly and electric circular saw

Abstract

The utility model particularly relates to a bottom plate assembly and an electric circular saw, the bottom plate assembly is used for installing a machine body of the electric circular saw, and the bottom plate assembly specifically comprises a bottom plate, an installation part and a depth frame. The bottom plate is provided with a working hole allowing a saw blade of the machine body to penetrate through, is used for supporting the machine body and is rotationally connected with the machine body with a first axis as the center, and the first axis is parallel to the rotating axis of the saw blade. And the mounting piece is arranged on the bottom plate. The depth frame is rotationally connected with the mounting piece by taking a second axis as a center, the second axis is parallel to the rotating axis, and the depth frame is used for being matched with the machine body to regulate the depth of the saw blade stretching into the working hole. According to the bottom plate assembly, the depth frame and the bottom plate can be rotationally connected with each other with the second axis as the center by arranging the mounting piece, and meanwhile, the machine body and the bottom plate are rotationally connected with each other with the first axis as the center, so that the depth frame and the electric circular saw can be rotationally adjusted at the same time during depth adjustment; and the situation that the handle interferes with the depth frame when being held and moved is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of electric tools, in particular to a base plate component and an electric circular saw. Background Art

[0002] Electric circular saw is a tool that drives saw blades to perform sawing operations. It is safe, reliable, well-structured, and highly efficient. It is widely used in home decoration, construction, woodworking, and other fields and plays an important role. In the actual processing process, electric circular saws are often required to perform bevel cutting and deep cutting, which requires adjusting the depth and deflection angle between the saw blade and the bottom plate. Since the saw blade is located in the middle of the bottom plate, it is not easy for the operator to intuitively grasp the position of adjusting the angle and depth, so the processing accuracy is difficult to grasp.

[0003] At present, the existing electric circular saw generally includes: a housing, a motor, a bottom plate, an angle adjustment mechanism, a depth adjustment structure and a guide device. Among them, the depth adjustment mechanism is used for the user to adjust the cutting depth of the saw blade, but the existing depth adjustment mechanism often causes the handle to interfere with the depth frame when being held and moved, thereby affecting the efficiency and progress of the operation. Utility Model Content

[0004] The purpose of the utility model is to at least solve the problem that the handle of the existing electric circular saw easily interferes with the depth frame when the handle is held and moved. This purpose is achieved through the following technical solutions:

[0005] The first aspect of the utility model provides a base plate assembly for mounting a body of an electric circular saw, comprising:

[0006] A bottom plate, the bottom plate having a working hole for the saw blade of the body to pass through, the bottom plate being used to support the body and being rotatably connected with the body around a first axis, wherein the first axis is parallel to the rotation axis of the saw blade;

[0007] A mounting member, the mounting member being arranged on the bottom plate;

[0008] A depth frame is rotatably connected to the mounting member with a second axis as the center, the second axis is parallel to the rotation axis, and the depth frame is used to cooperate with the body to adjust the depth of the saw blade entering the working hole.

[0009] The bottom plate assembly of the utility model is provided with a mounting member so that the depth frame and the bottom plate can be rotatably connected with the second rotation axis as the center. At the same time, since the electric circular saw and the bottom plate are rotatably connected with the first axis as the center, when adjusting the depth, the depth frame and the electric circular saw can be rotated and adjusted at the same time to avoid the interference between the handle and the depth frame when the handle is held and moved. In addition, the bottom plate assembly changes the structure and rotation center of the existing depth frame, and makes the adjustment of the depth frame more convenient and flexible, and also helps to ensure the quality requirements and aesthetic appearance of the entire product.

[0010] In addition, the base plate assembly according to the utility model may also have the following additional technical features:

[0011] In some embodiments of the present invention, the mounting member comprises:

[0012] a first mounting portion, the first mounting portion being disposed on the bottom plate;

[0013] A second mounting portion is hingedly connected to the depth frame via a connecting piece.

[0014] In some embodiments of the present invention, the depth rack includes:

[0015] A connecting plate, a first end of which is hinged to the second mounting portion;

[0016] An arc-shaped plate, wherein the arc-shaped plate is arranged at the second end of the connecting plate, and the radius of the arc-shaped plate is less than or equal to 105 mm.

[0017] In some embodiments of the present invention, the minimum distance between the top end of the arc-shaped plate and the bottom plate is greater than or equal to 108 mm.

[0018] In some embodiments of the present invention, the first mounting portion is rotatably connected to the base plate around a third axis, and the third axis is perpendicular to the first axis and parallel to the base plate.

[0019] In some embodiments of the present invention, the mounting member is configured to be L-shaped.

[0020] In some embodiments of the present invention, it also includes:

[0021] A fixing member, the fixing member is arranged on the bottom plate, and the fixing member and the mounting member are arranged at two ends of the working hole opposite to each other;

[0022] An angle frame, wherein the first end of the angle frame is rotatably connected to the base plate, and the second end of the angle frame is movably arranged on the angle frame, and the angle frame is used to support the fuselage.

[0023] In some embodiments of the present invention, a fixing portion is provided at the first end of the angle frame, and the fixing portion is rotatably connected to the fuselage around the first axis.

[0024] In some embodiments of the utility model, a guide ruler seat is provided on the bottom plate; the bottom plate assembly further comprises:

[0025] A guide ruler, the guide ruler being passed through the bottom plate;

[0026] A fastening knob is arranged on the guide ruler seat and is used to fix the guide ruler on the base plate.

[0027] The second aspect of the utility model relates to an electric circular saw, comprising a body and a bottom plate assembly as described in the utility model; wherein the body comprises:

[0028] A housing, on which an adjustment control is arranged;

[0029] a saw blade, the saw blade being disposed in the housing;

[0030] A motor, the motor is used to drive the saw blade to rotate;

[0031] The base plate assembly is used to support the housing and is rotatably connected to the housing with a first axis as the center. The first axis is parallel to the rotation axis of the saw blade. The depth frame is cooperatively connected to the adjustment control.

[0032] Compared with the prior art, the electric circular saw described in the present invention and the above-mentioned base plate assembly have the same beneficial effects, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not to be considered as limiting the present invention. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0034] Figure 1 It is a structural schematic diagram of a bottom plate assembly shown in an embodiment of the utility model at a certain viewing angle;

[0035] Figure 2 It is a structural schematic diagram of the bottom plate assembly shown in another viewing angle according to an embodiment of the utility model;

[0036] Figure 3 It is a schematic structural diagram of an electric circular saw in a certain use state shown in an embodiment of the utility model;

[0037] Figure 4It is a partial structural schematic diagram of an electric circular saw shown in an embodiment of the utility model;

[0038] Figure 5 A schematic diagram showing a comparison of the bottom plate assembly before and after modification according to an embodiment of the present utility model;

[0039] Figure 6 It is a schematic structural diagram of an electric circular saw in another use state according to an embodiment of the present utility model.

[0040] The symbols in the accompanying drawings are as follows:

[0041] 10. Bottom plate assembly; 20. Fuselage;

[0042] 1. Bottom plate; 11. Working hole; 12. Mounting seat; 13. Surrounding edge; 14. Guide ruler seat;

[0043] 2. Mounting member; 21. First mounting portion; 22. Second mounting portion;

[0044] 3. Depth rack; 31. Connecting plate; 32. Curved plate;

[0045] 41. first connecting member; 42. second connecting member; 43. third connecting member; 44. fourth connecting member;

[0046] 5. Angle adjustment mechanism; 51. Fixing member; 511. Arc groove; 52. Angle frame; 521. Fixing part; 53. Adjustment knob;

[0047] 6. Guide ruler; 61. Main body; 62. Limit plate;

[0048] 7. Tighten the knob;

[0049] 8. housing; 81. adjusting member;

[0050] 9. Saw blade. DETAILED DESCRIPTION

[0051] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0052] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0053] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0054] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both above and below orientations.

[0055] Electric circular saw is a tool that drives saw blades to perform sawing operations. It is safe, reliable, well-structured, and highly efficient. It is widely used in home decoration, construction, woodworking, and other fields and plays an important role. In the actual processing process, electric circular saws are often required to perform bevel cutting and deep cutting, which requires adjusting the depth and deflection angle between the saw blade and the bottom plate. Since the saw blade is located in the middle of the bottom plate, it is not easy for the operator to intuitively grasp the position of adjusting the angle and depth, so the processing accuracy is difficult to grasp.

[0056] At present, the existing electric circular saw generally includes: a housing, a motor, a bottom plate, an angle adjustment mechanism, a depth adjustment structure and a guide device. Among them, the depth adjustment mechanism is used for the user to adjust the cutting depth of the saw blade, but the existing depth adjustment mechanism often causes the handle to interfere with the depth frame when being held and moved, thereby affecting the efficiency and progress of the operation.

[0057] In order to solve the above problems, the present application relates to a base plate assembly 10, which is used to install the body 20 of the electric circular saw, and specifically includes a base plate 1, a mounting member 2 and a depth frame 3. The base plate 1 has a working hole 11 for the saw blade 9 of the body 20 to pass through, and the base plate 1 is used to support the body 20 and is rotatably connected with the body 20 around a first axis, and the first axis is parallel to the rotation axis of the saw blade 9. The mounting member 2 is arranged on the base plate 1. The depth frame 3 is rotatably connected with the mounting member 2 around a second axis, and the second axis is parallel to the rotation axis. The depth frame 3 is used to cooperate with the body 20 to adjust the depth of the saw blade 9 entering the working hole 11.

[0058] The bottom plate assembly 10 of the utility model, by providing the mounting member 2, enables the depth frame 3 and the bottom plate 1 to be rotatably connected with the second rotation axis as the center. At the same time, since the electric circular saw and the bottom plate 1 are rotatably connected with the first axis as the center, when adjusting the depth, the depth frame 3 and the electric circular saw can be rotated and adjusted at the same time to avoid the interference between the handle and the depth frame 3 when the handle is held and moved. In addition, the bottom plate assembly 10 changes the structure and rotation center of the existing depth frame 3, and makes the adjustment of the depth frame 3 more convenient and flexible, and also helps to ensure the quality requirements and aesthetic appearance of the entire product.

[0059] Based on the above overall design concept, an exemplary structure of the base plate assembly 10 of this embodiment is as follows Figure 1-Figure 6 As shown, at this time, this embodiment also specifically takes an electric circular saw as an example to introduce the bottom plate assembly 10. The electric circular saw includes a body 20 and a base assembly, wherein the body 20 includes at least a housing 8, a motor and a saw blade 9, the housing 8 is provided with a motor and a saw blade 9, and the saw blade 9 is provided on the driving shaft of the motor. Under the drive of the motor, the saw blade 9 can rotate along the axis of the driving shaft, that is, the axis of the driving shaft is the rotation axis of the saw blade 9. In this embodiment, the rotation axis of the saw blade 9 is arranged along the width direction of the bottom plate 1.

[0060] like Figure 1-Figure 3As shown, the base plate assembly 10 includes a base plate 1, and a mounting member 2 and a depth frame 3 arranged on the base plate 1. The base plate 1 has a working hole 11 for the saw blade 9 to pass through, and the working hole 11 is extended along the length direction of the base plate 1. The base plate 1 is used to support the shell 8 of the body 20 and is rotatably connected with the shell 8 around the first axis, and the first axis is parallel to the rotation axis of the saw blade 9. At the same time, the above-mentioned mounting member 2 and the depth frame 3 are arranged at the second end of the working hole 11, and the depth frame 3 is rotatably connected with the mounting member 2 around the second axis, and the depth frame 3 is connected to the shell 8 through an adjusting member 81, and the depth frame 3 cooperates with the adjusting member 81 to adjust the depth of the saw blade 9 entering the working hole 11. At this time, the second axis is parallel to the rotation axis. In this embodiment, along the length direction of the base plate 1, the first axis and the second axis are respectively arranged at both ends of the working hole 11.

[0061] Specifically, the mounting frame includes a first mounting portion 21 and a second mounting portion 22, wherein the first mounting portion 21 is arranged on the base plate 1, and the second mounting portion 22 is hinged to the depth frame 3 through a connecting piece. Specifically, the second mounting portion 22 and the depth frame 3 are both provided with through holes, and are connected together by a connecting piece passing through the two through holes, thereby realizing the rotational connection between the second mounting portion 22 and the depth frame 3. For ease of description, the connecting piece is referred to as the first connecting piece 41. In this embodiment, the first connecting piece 41 is configured as a rivet, and at this time, the axis of the rivet is the second axis. The use of rivets as the first connecting piece 41 is easy to install and can be directly purchased and used, which helps to improve the assembly efficiency of the base plate assembly 10 and reduce the installation cost of the base plate assembly 10.

[0062] At this time, the first mounting portion 21 is connected to the bottom plate 1 with the third axis as the center, and the third axis is perpendicular to the first axis and parallel to the bottom plate 1. Specifically, a mounting seat 12 is provided on the bottom plate 1, and openings are provided on the mounting seat 12 and the first mounting portion 21, and a third connecting member 43 passing through the two openings is provided, so that the first mounting portion 21 is connected to the bottom plate 1 with rotation, and at this time, the axis of the third rivet is the third axis. In this embodiment, the axial direction of the third rivet is parallel to the length direction of the bottom plate 1. Such a setting helps to enable the mounting member 2 to rotate along the third axis, and then can cooperate with the angle adjustment mechanism 5 described below to adjust the angle between the saw blade 9 and the bottom plate 1, thereby effectively ensuring that the electric circular saw can perform at least two working modes of 90° cutting and 45° cutting. As a preferred embodiment, the mounting member 2 is set to be L-shaped, that is, the first mounting portion 21 and the second mounting portion 22 are both set to be plate-shaped, which not only helps to reduce the cost of processing and manufacturing, but also can minimize the impact of the mounting member 2 on the fuselage 20.

[0063] It should be understood that the depth rack 3 includes a connecting plate 31 and an arc plate 32. The first end of the connecting plate 31 is hinged to the second mounting portion 22, and the arc plate 32 is arranged at the second end of the connecting plate 31, and the radius r of the arc plate 32 is less than or equal to 105 mm. In this embodiment, the first end of the connecting plate 31 is hinged to the mounting member 2 through the above-mentioned first connecting member 41. At the same time, the arc plate 32 is arranged at the second end of the connecting plate 31. The arrangement of the connecting plate 31 helps to improve the appearance of the depth rack 3, so that it can be designed according to the actual required angle, and ensure the quality requirements and the beauty of the appearance of the entire product.

[0064] At this time, a fixing groove used in conjunction with the adjusting member 81 is provided on the arc plate 32. In this embodiment, the fixing groove is set to be arc-shaped. The fixing groove and the adjusting member 81 can be used in conjunction with each other to effectively ensure the fastening and loosening between the housing 8 and the depth frame 3. Preferably, the adjusting member 81 is an existing depth adjustment rod. As a further embodiment, a first scale is provided on the arc plate 32. The setting of the first scale can cooperate with the adjusting member 81 and the housing 8 to determine the penetration depth of the saw blade 9 in the working hole 11.

[0065] like Figure 4 and Figure 5 As shown, the radius r of the arc plate 32 is less than or equal to 105 mm. In this embodiment, the arc plate 32 has a center O1, and along the direction perpendicular to the bottom plate 1, that is, along the height direction, the position of the center O1 is lower than the position of the second axis. The center O2 of the arc structure of the existing depth frame 3 is mostly set with the above-mentioned first axis as the center, that is, the center O2 is higher than the second axis in the height direction. At the same time, the radius R of the arc structure is 322.5 mm. It can be seen that by adopting the depth frame 3 and the mounting member 2 of the present application and limiting the radius of the arc plate 32, the rotation center of the depth frame 3 can be effectively lowered, thereby helping to solve the problem that the handle is easy to interfere with the depth frame 3 when it is held and moved, and also helping to make the adjustment of the depth frame 3 more convenient and flexible. In addition, it also helps to reduce the processing cost of the electric circular saw.

[0066] It should be further understood that the minimum distance h between the top of the arc plate 32 and the bottom plate 1 is greater than or equal to 108 mm. Since the arc structure of the existing depth frame 3 is mostly centered on the first axis, in order to ensure that the saw blade 9 has the same penetration depth in the working hole 11 as in the present application, the minimum distance h between the top of the depth frame 3 and the bottom plate 1 is greater than or equal to 126 mm. Figure 4As shown, when the electric circular saw is fixed on the base plate assembly 10 and the saw blade 9 of the electric circular saw penetrates the working hole 11 to the maximum depth, there is a minimum spacing h between the top end of the arc plate 32 and the base plate 1. In the present embodiment, the minimum spacing h between the top end of the depth rack 3 and the base plate 1 is ≥108 mm. Such a setting helps to further ensure that the handle will not interfere with the depth rack 3 when being held and moved, and further improves the adjustment convenience of the depth rack 3.

[0067] In addition, the bottom plate assembly 10 further includes an angle adjustment mechanism 5. The angle adjustment mechanism 5 includes a fixing member 51 and an angle bracket 52. The fixing member 51 is disposed on the bottom plate 1, and the fixing member 51 has an arc groove 511. The first end of the angle bracket 52 is rotatably connected to the bottom plate 1, and the second end of the angle bracket 52 is movably disposed on the arc groove 511, and the angle bracket 52 is used to support the fuselage 20. Figure 1 and Figure 2 As shown, along the length direction of the bottom plate 1, the fixing member 51 and the mounting member 2 are arranged opposite to each other at the two ends of the working hole 11, so that the angle adjustment and the depth adjustment can be arranged separately, which helps to ensure the adjustment effect of the electric circular saw when in use, and can effectively improve the utilization rate of the space. In this embodiment, the fixing member 51 and the bottom plate 1 are integrally formed parts, and the fixing member 51 is arranged on the bottom plate 1 in an integrally formed manner, which helps to improve the assembly difficulty of the bottom plate assembly 10. Of course, the fixing member 51 and the bottom plate 1 can also be arranged to be detachably connected.

[0068] At this time, the angle frame 52 is arranged along the width direction of the base plate 1, and the first end of the angle frame 52 is rotatably connected to the base plate 1, and the second end of the angle frame 52 is movably arranged on the arc groove 511. In this embodiment, a first hole is arranged on the base plate 1, and a second hole is arranged at the first end of the angle frame 52. The angle frame 52 is rotatably connected to the base plate 1 by arranging a fourth connecting member 44 passing through the first hole and the second hole. At this time, the angle frame 52 and the base plate 1 are rotatably connected with the axis of the fourth connecting member 44 as the center, and the axis of the fourth connecting member 44 is arranged along the width direction of the base plate 1. At the same time, a positioning hole is arranged at the second end of the angle frame 52, and an adjusting knob 53 that can pass through the arc groove 511 is arranged in the positioning hole. The adjusting knob 53 is used to adjust the fastening effect between the angle frame 52 and the fixed plate, so that the second end of the angle frame 52 can be movably arranged along the arc groove 511. As shown in FIG. Figure 6 As shown, the angle adjustment mechanism 5 cooperates with the depth frame 3, the mounting member 2 and the third connecting member 43 to help adjust the cutting angle of the electric circular saw, thereby achieving inclined cutting and vertical cutting.

[0069] still Figure 1 and Figure 2As shown, the first end of the angle frame 52 is provided with a fixing portion 521, and the fixing portion 521 is rotatably connected to the fuselage 20 with the first axis as the center. In this embodiment, the fixing portion 521 includes two clamping plates arranged at intervals, and is fixedly connected by setting a second connecting member 42 passing through the two clamping plates and the housing 8. Preferably, the second connecting member 42 is an elastic cylindrical pin, and in this case, the axis of the elastic cylindrical pin is the first axis. Such a setting helps to reduce the assembly difficulty of the electric circular saw, and can effectively ensure the adjustment effect of the cutting angle of the electric circular saw, and ensure the accuracy of the cutting angle.

[0070] like Figure 1 , Figure 2 and Figure 6 As shown, the base plate assembly 10 also includes a guide ruler 6 and a tightening knob 7. The guide ruler 6 is passed through the base plate 1. The tightening knob 7 is arranged on the guide ruler 6 seat, and the tightening knob 7 is used to fix the guide ruler 6 on the base plate 1. Specifically, along the width direction of the base plate 1, a peripheral edge is respectively arranged at both ends of the base plate 1. For the convenience of description, the two peripheral edges are respectively referred to as the first peripheral edge and the second peripheral edge, and a first socket is arranged on the first peripheral edge, and a second socket is arranged on the second peripheral edge. At the same time, a guide ruler 6 seat is arranged on the base plate 1. The guide ruler 6 can be arranged on the base plate 1 through the first socket, the guide ruler 6 seat and the second socket in sequence. The guide ruler 6 seat is provided with a tightening knob 7, which is screwed on the guide ruler 6 seat and fixed to the base plate 1 by pressing the guide ruler 6.

[0071] In this embodiment, the guide ruler 6 includes a main body 61 and a stop plate 62, wherein a second scale is provided on the main body 61. When the zero scale of the second scale is in the same plane as the saw blade 9, the action surface of the stop plate 62 is in the same plane as the outer side surface of the first surrounding edge or the second surrounding edge, and such a configuration helps to ensure the accuracy of the guide ruler 6, thereby helping to further improve the use effect of the electric circular saw.

[0072] The present application also relates to an electric circular saw, comprising a body 20 and a bottom plate assembly 10 as described above. The body 20 comprises a housing 8, a saw blade 9 and a motor. An adjustment control is provided on the housing 8. The saw blade 9 and the motor are provided in the housing 8. The motor is used to drive the saw blade 9 to rotate. The bottom plate assembly 10 is used to support the housing 8 and is rotatably connected to the housing 8 with a first axis as the center, the first axis is parallel to the rotation axis of the saw blade 9, and the depth frame 3 is connected in cooperation with the adjustment control.

[0073] Compared with the prior art, the electric circular saw described in the present invention and the above-mentioned base plate assembly 10 have the same beneficial effects, which will not be described in detail here.

[0074] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A base plate assembly for mounting a body of an electric circular saw, characterized in that: include: A bottom plate, the bottom plate having a working hole for the saw blade of the body to pass through, the bottom plate being used to support the body and being rotatably connected with the body around a first axis, wherein the first axis is parallel to the rotation axis of the saw blade; A mounting member, the mounting member being arranged on the bottom plate; A depth frame is rotatably connected to the mounting member with a second axis as the center, the second axis is parallel to the rotation axis, and the depth frame is used to cooperate with the machine body to adjust the depth of the saw blade entering the working hole.

2. The base plate assembly according to claim 1, characterized in that: The mounting member comprises: a first mounting portion, the first mounting portion being disposed on the bottom plate; A second mounting portion is hinged to the depth frame through a connecting piece.

3. The base plate assembly according to claim 2, characterized in that: The depth rack comprises: A connecting plate, a first end of which is hinged to the second mounting portion; An arc-shaped plate, wherein the arc-shaped plate is arranged at the second end of the connecting plate, and the radius of the arc-shaped plate is less than or equal to 105 mm.

4. The base plate assembly according to claim 3, characterized in that: The minimum distance between the top end of the arc plate and the bottom plate is greater than or equal to 108 mm.

5. The base plate assembly according to claim 2, characterized in that: The first mounting portion is rotatably connected to the bottom plate around a third axis, and the third axis is perpendicular to the first axis and parallel to the bottom plate.

6. The base plate assembly according to claim 5, characterized in that: The mounting member is arranged in an L shape.

7. The base plate assembly according to claim 1, characterized in that: Also includes: A fixing member, the fixing member is arranged on the bottom plate, the fixing member and the mounting member are arranged at two ends of the working hole opposite to each other, and the fixing member has an arc-shaped groove; An angle frame, wherein the first end of the angle frame is rotatably connected to the base plate, and the second end of the angle frame is movably disposed on the arc groove, and the angle frame is used to support the fuselage.

8. The base plate assembly according to claim 7, characterized in that: A fixing portion is disposed at the first end of the angle frame, and the fixing portion is rotatably connected to the fuselage with the first axis as the center.

9. The base plate assembly according to claim 5, characterized in that: A guide ruler seat is arranged on the bottom plate; the bottom plate assembly also includes: A guide ruler, the guide ruler being passed through the bottom plate; A fastening knob is arranged on the guide ruler seat and is used to fix the guide ruler on the base plate.

10. An electric circular saw, characterized in that: The invention comprises a fuselage and a base plate assembly as claimed in any one of claims 1 to 9; wherein the fuselage comprises: A housing, on which an adjustment control is arranged; a saw blade, the saw blade being disposed in the housing; A motor, the motor is used to drive the saw blade to rotate; The base plate assembly supports the housing and is rotatably connected to the housing with a first axis as the center. The first axis is parallel to the rotation axis of the saw blade. The depth frame is cooperatively connected to the adjustment control.

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