Low-noise small circular saw

Abstract

The utility model discloses a low-noise small circular saw which comprises a handle, a mounting head, a motor, a saw blade and a battery rack, the mounting head is arranged at one end of the handle, the battery rack is arranged at the other end of the handle, the motor is arranged on the mounting head, the saw blade is connected to an output shaft of the motor, a first protective cover is arranged on the mounting head, and the saw blade is covered with the first protective cover; a second protection cover is arranged on the first protection cover, the second protection cover is connected into the first protection cover in a sliding mode, and the first protection cover and the second protection cover are both of a semicircular structure; according to the circular saw, the saw blade can be protected when the circular saw is stored.

Description

Technical Field

[0001] This utility model belongs to the field of power tool technology, and in particular relates to a low-noise small circular saw. Background Technology

[0002] An electric circular saw is a tool that uses an electric motor to drive a circular saw blade through a transmission mechanism for sawing operations. It is characterized by safety, reliability, reasonable structure, and high work efficiency.

[0003] The protective cover for a circular saw is usually a semi-circular structure, which exposes half of the saw blade for easy use. However, when storing a circular saw, the saw blade is easily damaged by bumps and knocks from the outside, and the saw blade cannot be effectively protected. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a low-noise small circular saw.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a low-noise small circular saw, including a handle, a mounting head, a motor, a saw blade, and a battery holder. The mounting head is located at one end of the handle, the battery holder is located at the other end of the handle, the motor is located on the mounting head, the saw blade is connected to the output shaft of the motor, the mounting head is provided with a first protective cover, the first protective cover is placed on the saw blade, and a second protective cover is provided on the first protective cover, the second protective cover is slidably connected inside the first protective cover, and both the first protective cover and the second protective cover are semi-circular in structure.

[0007] Furthermore, a first slider is provided on the side wall of the second protective cover, and a first groove is provided on the side wall of the first protective cover for the first slider to move.

[0008] Furthermore, a stop block is provided at one end of the first chute, and a first connecting plate is provided on the stop block. The first connecting plate is fixed to the first protective cover by screws.

[0009] Furthermore, the second protective cover is provided with a protrusion, and one end of the first protective cover is provided with a notch corresponding to the protrusion. When the second protective cover is inside the first protective cover, the protrusion is inside the notch.

[0010] Furthermore, a second connecting plate is provided on the inner wall of the notch, one end of the second connecting plate is provided with an undercut, the protrusion is provided with a connecting cavity, the connecting cavity is provided with a connecting plate, and the connecting plate is provided with a fixing buckle.

[0011] Furthermore, the connecting plate is provided with a first connecting shaft, which protrudes from the protrusion and has a handle.

[0012] Furthermore, a second slider is provided on the first connecting shaft, and a second groove is provided on the protrusion for the second slider to move; an installation groove is provided on the inner wall of the notch, and a second connecting plate is connected in the installation groove. The second connecting plate is made of elastic material.

[0013] Furthermore, the handle is provided with a connecting frame, and the connecting frame is provided with a second connecting shaft, which is rotatably connected to the handle; the first protective cover is provided with a first connecting block.

[0014] Furthermore, the connecting frame is provided with two connecting rods, one end of which is provided with a second connecting block, and the protrusion is provided with a groove corresponding to the second connecting block; a gap is provided between the second connecting blocks of the two connecting rods, and the gap is smaller than the width of the protrusion.

[0015] Furthermore, the connecting rod is provided with a guide rod, the connecting frame is provided with a guide groove, the guide rod is inserted into the guide groove, the guide rod is provided with a spring, one end of the spring is connected to the inner wall of the guide groove, and the first connecting block is provided with an annular groove corresponding to the second connecting block.

[0016] The advantage of this utility model is that it provides a low-noise small circular saw that protects the saw blade when stored. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0018] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0019] In the attached diagram:

[0020] Figure 1 This is a schematic diagram of the structure of a low-noise circular saw in one embodiment of the present invention.

[0021] Figure 2 for Figure 1 A side view of the low-noise small circular saw in the illustrated embodiment.

[0022] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0023] Figure 4 for Figure 1 A cross-sectional view of the protrusion of the low-noise small circular saw in the illustrated embodiment.

[0024] Figure 5 for Figure 4 Enlarged view of point B in the image.

[0025] Figure 6 for Figure 1 A cross-sectional view of the first groove of the low-noise circular saw in the illustrated embodiment.

[0026] Figure 7 for Figure 6 Enlarged view of point C in the image.

[0027] Figure 8 for Figure 1 A cross-sectional view of the connecting frame of the low-noise small circular saw in the illustrated embodiment.

[0028] Figure 9 for Figure 8 Enlarged view of point D in the image.

[0029] The meanings of the reference numerals in the figure are as follows:

[0030] 101. Handle; 102. Battery holder; 103. Mounting head; 104. First protective cover; 1041. First slide groove; 105. Saw blade; 106. Second protective cover; 1061. Groove; 107. Protrusion; 108. Grip; 109. First slider; 110. First connecting plate; 111. Screw; 112. First connecting block; 1121. Ring groove; 113. Connecting frame; 114. Connecting rod; 1141. Guide rod; 1142. Spring; 1143. Second connecting block; 115. Second connecting shaft; 116. First connecting shaft; 117. Connecting plate; 118. Fixing buckle; 119. Second connecting plate; 120. Inverted buckle; 121. Second slider; 122. Second slide groove. Detailed Implementation

[0031] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0032] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0033] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0034] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0035] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0036] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] like Figure 1-9 As shown, a low-noise circular saw includes a handle 101, a mounting head 103, a motor, a saw blade 105, and a battery holder 102. The mounting head 103 is located at one end of the handle 101, and the battery holder 102 is located at the other end of the handle 101. A battery is installed in the battery holder 102 to provide power to the motor. An electronic control board is installed in the handle 101 and is connected to the motor to control the motor's start-up. The motor is located on the mounting head 103, and the saw blade 105 is connected to the output shaft of the motor. The motor is a noise-reducing motor to reduce the noise during the operation of the circular saw. A first protective cover 104 is provided on the mounting head 103, and the first protective cover 104 covers the saw blade 105. A second protective cover 106 is provided on the first protective cover 104. The second protective cover 106 is slidably connected inside the first protective cover 104. Both the first protective cover 104 and the second protective cover 106 have a semi-circular structure. When the circular saw is in use, the second protective cover 106 enters the first protective cover 104, exposing the saw blade 105, which facilitates the normal use of the circular saw. When the circular saw is not in use, the second protective cover 106 is removed from the first protective cover 104. The second protective cover 106 and the first protective cover 104 cooperate to form a circular protective cover to store the saw blade 105, preventing the saw blade 105 from being bumped or knocked when the circular saw is stored, thus protecting the circular saw.

[0038] Furthermore, the second protective cover 106 has a first slider 109 on its side wall, and the first protective cover 104 has a first groove 1041 on its side wall for the first slider 109 to move. A stop is provided at one end of the first groove 1041, and a first connecting plate 110 is provided on the stop. The first connecting plate 110 is fixed to the first protective cover 104 by screws 111. The cooperation between the first slider 109 and the first groove 1041 makes the movement of the second protective cover 106 more stable, limits the movement trajectory of the second protective cover 106, and ensures that the first protective cover 104 and the second protective cover 106 can move smoothly. The two protective covers 106 and 104 work together to form a circular protective cover to protect the saw blade 105. When the circular saw is in use, the second protective cover 106 enters the first protective cover 104 and acts as the inner wall of the first protective cover 104, so that the flying metal fragments fall onto the inner wall of the second protective cover 106, thus protecting the first protective cover 104. When the second protective cover 106 needs to be maintained and cleaned, the screw 111 is unscrewed and the stop block is removed from the first slide groove 1041. The second protective cover 106 can then be removed directly from the first protective cover 104 for cleaning and maintenance.

[0039] Furthermore, the second protective cover 106 is provided with a protrusion 107, and the first protective cover 104 is provided with a notch corresponding to the protrusion 107 at one end. When the second protective cover 106 is inside the first protective cover 104, the protrusion 107 is inside the notch.

[0040] An installation groove is provided on the inner wall of the notch, and a second connecting plate 119 is provided in the installation groove. The second connecting plate 119 is made of elastic material. One end of the second connecting plate 119 is provided with an undercut 120. A connecting cavity is provided on the protrusion 107, and a connecting plate 117 is provided in the connecting cavity. A fixing buckle 118 is provided on the connecting plate 117.

[0041] The connecting plate 117 is provided with a first connecting shaft 116, which extends through the protrusion 107 and is provided with a handle 108; the first connecting shaft 116 is provided with a second slider 121, and the protrusion 107 is provided with a second groove 122 for the second slider 121 to move.

[0042] When the second protective cover 106 enters the first protective cover 104, the protrusion 107 is in the notch, the second connecting plate 119 is inserted into the connecting cavity, and the buckle 120 abuts against the fixing buckle 118, causing the second connecting plate 119 to deform. After the second connecting plate 119 deforms, the buckle 120 passes through the bottom of the fixing buckle 118, and finally the buckle 120 is fastened to the fixing buckle 118. The second protective cover 106 is fixed to the first protective cover 104 by the cooperation of the buckle 120 and the fixing buckle 118. Inside 04, the protective cover is in the open state, facilitating the normal use of the circular saw. When the second protective cover 106 is removed from the first protective cover 104, the handle 108 is rotated, which drives the connecting plate 117 to rotate, causing the fixing buckle 118 and the overlock 120 to be misaligned, allowing the second protective cover 106 to be pushed out of the first protective cover 104 directly. The handle 108 is designed to provide a gripping point for pushing the second protective cover 106, making it easier to move the second protective cover 106.

[0043] Furthermore, the grip 108 is provided with a connecting frame 113, and the connecting frame 113 is provided with a second connecting shaft 115, which is rotatably connected to the grip 108; the first protective cover 104 is provided with a first connecting block 112; the connecting frame 113 is provided with two connecting rods 114, one end of the connecting rod 114 is provided with a second connecting block 1143, and the protrusion 107 is provided with a groove 1061 corresponding to the second connecting block 1143; there is a gap between the second connecting blocks 1143 of the two connecting rods 114, which is smaller than the width of the protrusion 107, and the width of the first connecting block 112 is larger than the gap between the second connecting blocks 1143 on the two connecting rods 114.

[0044] The connecting rod 114 is provided with a guide rod 1141, the connecting frame 113 is provided with a guide groove, the guide rod 1141 is inserted into the guide groove, the guide rod 1141 is provided with a spring 1142, one end of the spring 1142 is connected to the inner wall of the guide groove, and the first connecting block 112 is provided with an annular groove 1121 corresponding to the second connecting block 1143.

[0045] When the second protective cover 106 is inside the first protective cover 104, the connecting frame 113 is aligned with the length direction of the handle 108, and the second connecting block 1143 is embedded in the groove 1061 to house the connecting frame 113. It is worth noting that the second connecting block 1143 being in the groove 1061 does not affect the rotation of the handle 108. After the second protective cover 106 is removed from the first protective cover 104, the handle 108 moves to a position close to the first connecting block 112, and rotating the connecting frame 113 causes the connecting rod 11... The second connecting block 1143 is mounted on the first connecting block 112. When the second connecting block 1143 abuts against the first connecting block 112, part of the guide rod 1141 extends out from the guide groove. After the second connecting block 1143 is embedded in the annular groove 1121, the spring 1142 pulls the guide rod 1141 into the guide groove. The second protective cover 106 is fixed on the first protective cover 104 by the cooperation of the connecting frame 113 and the first connecting block 112. The first protective cover 104 and the second protective cover 106 cooperate to form a circular protective cover to protect and store the saw blade 105.

[0046] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A low-noise circular saw, comprising a handle, a mounting head, a motor, a saw blade, and a battery holder, wherein the mounting head is disposed at one end of the handle, the battery holder is disposed at the other end of the handle, the motor is disposed on the mounting head, the saw blade is connected to the output shaft of the motor, and a first protective cover is provided on the mounting head, the first protective cover covering the saw blade; characterized in that: The first protective cover is provided with a second protective cover, which is slidably connected inside the first protective cover. Both the first protective cover and the second protective cover are semi-circular in structure.

2. The low noise mini-circular saw according to claim 1, characterized in that: The second protective cover has a first slider on its side wall, and the first protective cover has a first groove on its side wall for the first slider to move.

3. The low noise mini-circular saw of claim 2, wherein: A stop block is provided at one end of the first chute, and a first connecting plate is provided on the stop block. The first connecting plate is fixed to the first protective cover by screws.

4. The low-noise circular saw according to claim 1, characterized in that: The second protective cover has a protrusion, and the first protective cover has a notch at one end corresponding to the protrusion. When the second protective cover is inside the first protective cover, the protrusion is inside the notch.

5. The low noise mini-circular saw of claim 4, wherein: A second connecting plate is provided on the inner wall of the notch. One end of the second connecting plate is provided with an undercut. A connecting cavity is provided on the protrusion. A connecting plate is provided inside the connecting cavity. A fixing buckle is provided on the connecting plate.

6. The low noise mini-circular saw of claim 5, wherein: The connecting disc is provided with a first connecting shaft, which protrudes from the protrusion and has a handle.

7. The low-noise circular saw according to claim 6, characterized in that: The first connecting shaft is provided with a second slider, and the protrusion is provided with a second groove for the second slider to move; the inner wall of the notch is provided with a mounting groove, and the second connecting plate is connected to the mounting groove. The second connecting plate is made of elastic material.

8. The low noise mini-circular saw of claim 6, wherein: The grip is provided with a connecting frame, and the connecting frame is provided with a second connecting shaft, which is rotatably connected to the grip; the first protective cover is provided with a first connecting block; the connecting frame is provided with two connecting rods, one end of which is provided with a second connecting block, and the protrusion is provided with a groove corresponding to the second connecting block; there is a gap between the second connecting blocks of the two connecting rods, which is smaller than the width of the protrusion.

9. The low noise mini-circular saw of claim 8, wherein: The connecting rod is provided with a guide rod, the connecting frame is provided with a guide groove, the guide rod is inserted into the guide groove, the guide rod is provided with a spring, one end of the spring is connected to the inner wall of the guide groove, and the first connecting block is provided with an annular groove corresponding to the second connecting block.

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