Hand-held small circular saw safe to operate

Abstract

The utility model discloses a handheld small circular saw safe to operate, 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 protective cover is arranged on the mounting head, and the protective cover covers the saw blade; a connecting frame is arranged on the protective cover, a mounting block is arranged on the connecting frame, the mounting block is connected with a protective frame, and a track for the protective frame to move is arranged on the mounting block; during storage, the saw blade can be protected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to handheld electric tool technical field, especially a handheld small circular saw of safe operation is provided. BACKGROUND

[0002] The electric circular saw is a kind of tool that is driven by motor through transmission mechanism to drive circular saw blade to carry out sawing operation, with safe and reliable, reasonable structure, high work efficiency and other characteristics.

[0003] The existing electric circular saw lacks saw blade protection measures, and the saw blade is easily damaged by bumping when the electric circular saw is stored, affecting the normal use of the electric circular saw. CONTENT OF THE UTILITY MODEL

[0004] The content part of the present application is used to introduce the concept in a brief form, which will be described in detail in the specific embodiment part later.The content part of the present application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] The utility model discloses in order to overcome the insufficient of prior art, provide a handheld small circular saw of safe operation.

[0006] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a handheld small circular saw of safe operation, including handle, installation head, motor, saw blade and battery holder, installation head is located at one end of handle, battery holder is located at the other end of handle, motor is located on installation head, saw blade is connected on the output shaft of motor, installation head is equipped with protective cover, and the protective cover cover is located on saw blade;Connection frame is arranged on the protective cover, and mounting block is arranged on the connection frame, the mounting block is connected with the protection frame, and the track for the movement of the protection frame is arranged on the mounting block.

[0007] Further, the protection frame includes a first frame body and a second frame body, one end of the first frame body and the second frame body is rotatably connected, and the second frame body is arranged in the track.

[0008] Further, the mounting block is provided with a fixing plate, and the fixing plate is arranged on the track.

[0009] Further, the first connecting sleeve is sleeved on the first frame body, the second connecting sleeve is sleeved on the second frame body, the first connecting block is arranged on the first connecting sleeve, the second connecting block is arranged on the second connecting sleeve, the first connecting groove is arranged on the second connecting block, and the first connecting block is rotatably connected in the first connecting groove.

[0010] Further, the first connecting sleeve is sleeved on the first frame body, the second connecting sleeve is sleeved on the second frame body, the first connecting block is arranged on the first connecting sleeve, the second connecting block is arranged on the second connecting sleeve, the first connecting groove is arranged on the second connecting block, and the first connecting block is rotatably connected in the first connecting groove.

[0011] Further, the first connecting rod is provided with a plurality of ratchet teeth, and the movable block is provided with a plurality of grooves corresponding to the ratchet teeth.

[0012] Further, the second protruding block is provided with a guide rod, the guide rod is provided with a through cavity communicating with the first movable slot, the movable block is provided with a first push rod, one end of the first push rod is provided with a push plate, the push plate is provided with a first spring, and one end of the first spring is abutted against the second protruding block.

[0013] Further, the mounting block is provided with a mounting slot, the mounting slot is provided with a push block, the push block is provided with a second spring, one end of the second spring is fixedly connected in the mounting slot, the push block is provided with a second connecting rod, the second connecting rod is provided with a fixed block, and the fixed block is provided with a fixed slot corresponding to the second frame body.

[0014] Further, the fixed slot is provided with a rubber pad on the inner wall.

[0015] Further, the push block is provided with a second movable slot, the second movable slot is provided with a fixed rod, the fixed rod is provided with a second push rod, the second push rod extends out of the second movable slot, and the mounting slot is provided with a fixed hole corresponding to the fixed rod on the side wall.

[0016] The hand-held small circular saw has the advantages that the saw blade is protected during storage, and the operation safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, objects and advantages of this application become more apparent.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic, and the elements and elements are not necessarily drawn according to the scale.

[0019] In the drawings:

[0020] Figure 1 It is a structure schematic view of the operation safety hand-held small circular saw in an embodiment of the utility model.

[0021] Figure 2 It is Figure 1 It is a sectional view of the second protruding block of the operation safety hand-held small circular saw in the embodiment shown.

[0022] Figure 3 It is Figure 2 It is an enlarged view of A in the embodiment.

[0023] Figure 4 It isFigure 2 Enlarged view of B in Fig.

[0024] Figure 5 is Figure 3 Enlarged view of C in Fig.

[0025] Figure 6 is Figure 1 Cross-sectional view of the movable block of the operation safety handheld mini circular saw in the embodiment shown in Fig.

[0026] Figure 7 is Figure 6 Enlarged view of D in Fig.

[0027] Figure 8 is Figure 1 Cross-sectional view of the push block of the operation safety handheld mini circular saw in the embodiment shown in Fig.

[0028] Figure 9 is Figure 8 Enlarged view of E in Fig.

[0029] The meanings of the reference signs in the drawings are as follows:

[0030] 101, handle; 102, mounting head; 103, battery holder; 104, protective cover; 105, saw blade; 106, protective holder; 1061, first holder body; 1062, second holder body; 107, first connecting sleeve; 1071, first connecting block; 1072, first protrusion; 108, second connecting sleeve; 1081, second connecting block; 1082, second protrusion; 109, first connecting rod; 1091, ratchet; 110, mounting block; 111, fixed plate; 112, fixed block; 113, rubber pad; 114, movable block; 1141, recess; 115, first push rod; 116, push plate; 117, first spring; 118, guide rod; 119, push block; 120, second connecting rod; 121, second spring; 122, fixed rod; 123, second push rod; 124, fixed hole. DETAILED DESCRIPTION

[0031] Embodiments of the present disclosure will be described in more detail hereinafter with reference to the accompanying drawings. While the present disclosure is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that there is no intent to limit the present disclosure to the particular embodiments disclosed, but on the contrary, the disclosure is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure. Like numbers refer to like elements throughout the description of the figures.

[0032] It should also be further noted that only parts related to the utility model are shown in the drawings for the convenience of description. The embodiments in the present disclosure and the features in the embodiments can be combined with each other without conflict.

[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 Figures 1-9 As shown, a safe-to-operate handheld circular saw includes a handle 101, a mounting head 102, a motor, a saw blade 105, and a battery holder 103. The mounting head 102 is located at one end of the handle 101, and the battery holder 103 is located at the other end of the handle 101. A battery is installed in the battery holder 103 to provide power to the motor. An electronic control board is located inside the handle 101 and is connected to the motor to control its start-up. The motor is mounted on the mounting head 102, and the saw blade 105 is connected to the motor's output shaft. A protective cover 104, which has a semi-circular structure, is provided on the mounting head 102 to protect the saw blade. A cover 104 is placed over the saw blade 105. The cover 104 is equipped with a connecting frame, and the connecting frame is equipped with a mounting block 110. The mounting block 110 is connected to a protective frame 106, and the mounting block 110 is equipped with a track for the protective frame 106 to move. The protective frame 106 protects the saw blade 105, forming a protective frame around the saw blade 105 to reduce the impact on the saw blade 105. When using the circular saw, the protective frame 106 is pushed to move along the track, and the protective frame 106 moves towards the saw blade 105 so that the saw blade 105 passes through the protective frame 106, and the circular saw can be used normally.

[0038] Specifically, the protective frame 106 includes a first frame 1061 and a second frame 1062. The first frame 1061 and the second frame 1062 are rotatably connected at one end. The second frame 1062 is placed in the track. The protective frame 106 is generally L-shaped to protect the saw blade 105.

[0039] The mounting block 110 is provided with a fixing plate 111, the fixing plate 111 covers the track, the fixing plate 111 is pressed on the second frame body 1062 to fix the second frame body 1062, so that the second frame body 1062 cannot be taken out from the track, and the connection effect of the protection frame 106 and the mounting block 110 is ensured.

[0040] Further, the first connecting sleeve 107 is sleeved on the first frame body 1061, the second connecting sleeve 108 is sleeved on the second frame body 1062, the first connecting sleeve 107 is provided with a first connecting block 1071, the second connecting sleeve 108 is provided with a second connecting block 1081, the second connecting block 1081 is provided with a first connecting groove, and the first connecting block 1071 is rotationally connected in the first connecting groove.

[0041] The first connecting sleeve 107 is provided with a first protrusion 1072, the second connecting sleeve 108 is provided with a second protrusion 1082, the first protrusion 1072 is provided with a first connecting rod 109, and the second protrusion 1082 is provided with a second connecting groove corresponding to the first connecting rod 109; the first connecting rod 109 and the second connecting groove are both arc-shaped structures.

[0042] The first connecting groove is provided with a first movable groove on the inner wall, the first movable groove is provided with a movable block 114, the first connecting rod 109 is provided with a plurality of ratchet teeth 1091, the ratchet teeth 1091 are made of plastic, one side wall of the ratchet teeth 1091 is provided with an arc surface, the movable block 114 is provided with a plurality of grooves 1141 corresponding to the ratchet teeth 1091, and the arc surface is arranged to enable the first connecting rod 109 to normally move into the first movable groove when the first connecting rod 109 is inserted into the first movable groove.

[0043] The second protrusion 1082 is provided with a guide rod 118, the guide rod 118 is provided with a through cavity communicating with the first movable groove, the movable block 114 is provided with a first push rod 115, the first push rod 115 penetrates out of the through cavity, one end of the first push rod 115 is provided with a push plate 116, the push plate 116 is provided with a first spring 117, one end of the first spring 117 abuts against the second protrusion 1082, and the guide rod 118 and the through cavity provide a guide function for the first push rod 115, so that the movable block 114 moves along the inner wall of the first movable groove.

[0044] When the saw blade 105 is replaced, the push plate 116 is pushed towards the second protrusion 1082, the first push rod 115 pushes the movable block 114 to move, the movable block 114 moves staggered with the first connecting rod 109, the first frame body 1061 is turned down to rotate, so that the saw blade 105 is conveniently replaced; after the saw blade 105 is replaced, the first frame body 1061 is turned up to the state perpendicular to the second frame body 1062, the first connecting rod 109 is inserted into the first connecting groove, the ratchet 1091 is inserted into the recess 1141 to fix the first connecting rod 109 in the first connecting groove, so that the first frame body 1061 is fixed on the second frame body 1062, to protect the saw blade 105 by the protection frame 106.

[0045] Further, the mounting block 110 is provided with a mounting groove, the mounting groove is provided with a push block 119, the push block 119 is provided with a second spring 121, one end of the second spring 121 is fixedly connected to the mounting groove, the push block 119 is provided with a second connecting rod 120, the second connecting rod 120 is provided with a fixing block 112, the fixing block 112 is provided with a fixing groove corresponding to the second frame body 1062, and a rubber pad 113 is arranged on the inner wall of the fixing groove to increase the friction between the fixing groove and the second frame body 1062.

[0046] The push block 119 is provided with a second movable groove, the second movable groove is provided with a fixing rod 122, the fixing rod 122 is provided with a second push rod 123, the second push rod 123 extends out of the second movable groove, and the side wall of the mounting groove is provided with a fixing hole 124 corresponding to the fixing rod 122.

[0047] When the protection frame 106 is moved, the push block 119 is pushed towards the mounting block 110, the push block 119 drives the fixing block 112 to move, so that the fixing block 112 is out of contact with the second frame body 1062, and the protection frame 106 is conveniently pushed to move, so that the position of the protection frame 106 is adjusted; after the push block 119 moves into the mounting groove, the second push rod 123 is pushed, the fixing rod 122 is inserted into the fixing hole 124 to fix the push block 119, so that the protection frame 106 is conveniently pushed to move; after the position of the protection frame 106 is determined, the second push rod 123 is pushed, so that the fixing rod 122 is out of the fixing hole 124, the second spring 121 pushes the push block 119 to move out of the mounting groove, the fixing block 112 moves downwards to make the fixing groove abut against the second frame body 1062 to fix the second frame body 1062, so that the saw blade 105 is protected by the protection frame 106.

[0048] The above description is merely some of the preferred embodiments of the present disclosure and a description of the principles of the technology used. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combinations of the above technical features or equivalent features without departing from the above utility model concept. For example, the above features are replaced with each other to form a technical solution with similar functions disclosed in the embodiments of the present disclosure (but not limited to).

Claims

1. A safe hand-held mini-circular saw, comprising a handle, a mounting head, a motor, a saw blade and a battery holder, the mounting head is arranged at one end of the handle, the battery holder is arranged at the other end of the handle, the motor is arranged on the mounting head, the saw blade is connected to the output shaft of the motor, a protective cover is arranged on the mounting head, and the protective cover covers the saw blade; characterized in that: The protective cover is provided with a connecting frame, the connecting frame is provided with a mounting block, the mounting block is connected with a protective frame, and the mounting block is provided with a track for moving the protective frame.

2. A safety hand-held mini-circular saw in operation according to claim 1, characterized in that: The protective frame comprises a first frame body and a second frame body, one end of the first frame body and the second frame body is rotationally connected, and the second frame body is arranged in the track.

3. The safety hand-held mini-circular saw for operation according to claim 1, characterized in that: The mounting block is provided with a fixed plate, and the fixed plate covers the track.

4. The safety hand-held mini-circular saw of claim 2, wherein: The first frame body is provided with a first connecting sleeve, the second frame body is provided with a second connecting sleeve, the first connecting sleeve is provided with a first connecting block, the second connecting sleeve is provided with a second connecting block, the second connecting block is provided with a first connecting groove, and the first connecting block is rotationally connected in the first connecting groove.

5. A safety hand-held mini-circular saw in operation according to claim 4, characterized in that: The first connecting sleeve is provided with a first protrusion, the second connecting sleeve is provided with a second protrusion, the first protrusion is provided with a first connecting rod, and the second protrusion is provided with a second connecting groove corresponding to the first connecting rod.

6. A safety hand-held mini-circular saw in operation according to claim 5, characterized in that: The inner wall of the second connecting groove is provided with a first movable groove, the first movable groove is provided with a movable block, the first connecting rod is provided with a plurality of ratchet teeth, and the movable block is provided with a plurality of grooves corresponding to the ratchet teeth.

7. A safety hand-held mini-circular saw in operation according to claim 6, characterized in that: The second protrusion is provided with a guide rod, the guide rod is provided with a through cavity communicating with the first movable groove, the movable block is provided with a first push rod, one end of the first push rod is provided with a push plate, the push plate is provided with a first spring, and one end of the first spring abuts against the second protrusion.

8. The safety hand-held mini-circular saw of claim 2, wherein: The mounting block is provided with a mounting groove, the mounting groove is provided with a push block, the push block is provided with a second spring, one end of the second spring is fixedly connected in the mounting groove, the push block is provided with a second connecting rod, the second connecting rod is provided with a fixed block, and the fixed block is provided with a fixed groove corresponding to the second frame body.

9. A safety hand-held mini-circular saw in operation according to claim 8, characterized in that: The inner wall of the fixed groove is provided with a rubber pad.

10. The safety hand-held mini-circular saw of claim 8, wherein: The push block is provided with a second movable groove, the second movable groove is provided with a fixed rod, the fixed rod is provided with a second push rod, the second push rod extends out of the second movable groove, and the side wall of the mounting groove is provided with a fixed hole corresponding to the fixed rod.

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