CN217044848U - Portable circular saw that has cutting height adjusting function for building - Google Patents

Abstract

The utility model relates to a portable circular saw technical field for building, in particular to a portable circular saw with cutting height adjusting function for building, which comprises a shell, the outer side of the shell is fixedly connected with one end of a connecting rod, the other end of the connecting rod is rotationally connected with a supporting block through a rotating shaft, the lower end surface of the supporting block is fixedly connected with a base, the inner side of the base is provided with a safety device, the safety device comprises a base sliding chute and a controller, the inner side of the base sliding chute is connected with a sliding block in a sliding way, the upper end surface of the sliding block is fixedly connected with one end of a first compression spring, the other end of the first compression spring is fixedly connected with the base, a tact switch is arranged above the sliding block, the outer side of the tact switch is fixedly connected with the base, thus, when the tangential deviation saw blade moves backwards in the cutting process, the sliding block can be separated from the contact with the tact switch, the controller can control the saw blade to stop rotating, the risk of injury of operating personnel is reduced, and the safety performance of the whole device is improved.

Description

Portable circular saw that has cutting height regulatory function for building

Technical Field

The utility model relates to a portable circular saw technical field for the building specifically is a portable circular saw with cutting height adjusting function for building.

Background

Along with the development of society, the application of portable circular saw for building is more and more extensive, electric circular saw is a tool that uses single-phase motor as power, then drive the circular saw blade to saw the operation through drive mechanism, have safe and reliable, characteristics such as work efficiency height, electric circular saw adopts the structure of climbing type appearance, mainly by motor, reducing gear box, protection casing, adjustment mechanism, handle, switch, circular saw blade, etc. make up, portable electric circular saw is the indispensable electric tool in building and finishing field, because its installation mode of saw blade is the unbalanced atress condition in the use for the reverse installation leads to it, will lead to the electric circular saw to move backward rapidly, in this way, may bring certain potential safety hazard to the user, also in the cutting depth adjustment mode of saw blade generally use fastening screw, in this way, may take place the situation that fastening screw loosens suddenly when using, therefore, a portable circular saw for construction having a cutting height adjusting function is proposed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a portable circular saw that has cutting height control function for building to what provide in solving above-mentioned background art meets unbalanced atress condition in the use, can lead to the rapid backward motion of electric circular saw, can bring the potential safety hazard for the user, still generally fastens with fastening screw on the cutting depth adjustment mode of saw bit, has like this the problem that can take place the sudden not hard up condition of fastening screw when using.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a portable circular saw that has cutting height control function for building, includes casing, handle, switch, saw bit and power cord, the one end and the slide bar of the outside fixedly connected with connecting rod of casing, the other end of connecting rod rotates through the pivot and is connected with the supporting shoe, the lower terminal surface fixedly connected with base of supporting shoe, the inboard of base is provided with safety device, the up end of base fixedly connected with deflector of position department on the right side partially.

Preferably: the safety device comprises a base sliding groove and a controller, a sliding block is connected to the inner side of the base sliding groove in a sliding mode, one end of a first compression spring is fixedly connected to the upper end face of the sliding block, the other end of the first compression spring is fixedly connected with the base, a touch switch is arranged above the sliding block, and the outer side of the touch switch is fixedly connected with the base.

Preferably: the part of the sliding block protruding out of the base is arranged in a circular arc mode, and the vertical length of the part of the sliding block protruding out of the base is equal to the length of the distance between the upper end face of the sliding block and the lower end face of the light touch switch.

Preferably: the utility model discloses a slide block, including guide plate, slider, inboard and slide bar, the inboard of spout has seted up the spout, the inboard and the slide bar sliding connection of spout, the inboard fixedly connected with second compression spring's of slider one end, second compression spring's other end fixedly connected with fixture block, the outside and the slide bar sliding connection of fixture block, the outside and the guide plate block of fixture block, the outside fixedly connected with third compression spring's of guide plate one end, third compression spring's other end fixedly connected with ejector pad, the outside and the guide plate sliding connection of ejector pad, the outside and the fixture block of ejector pad contact.

Preferably, the following components: the first compression springs are arranged on two sides of the tact switch symmetrically.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through base and the safety device that sets up, can take place the tangential skew saw bit backward movement in the cutting process, the slider can break away from under first compression spring's elastic potential energy and dabber the contact of switch, and the saw bit stall can be controlled to the controller, has reduced the injured risk of operating personnel, has increased the security performance of integrated device.

2. The utility model discloses in, deflector through setting up, the spout, the slide bar, the fixture block, second compression spring and ejector pad, can be when the panel thickness that needs the cutting changes, promote the ejector pad, the ejector pad promotes the fixture block and breaks away from the block with the deflector, slide the fixture block to suitable position according to the thickness of panel afterwards, then the fixture block can carry out the block with the deflector under second compression spring's elastic potential energy and be connected, it takes place not hard up with fastener to have prevented to take place the deflector in cutting process, the condition that the saw bit cutting depth degree changes, the stability of integrated device has been increased.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure at the position A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the fixture block mounting structure of the present invention;

fig. 4 is a schematic structural diagram of the point B in fig. 3 according to the present invention.

In the figure: 1-shell, 2-handle, 3-switch, 4-saw blade, 5-power line, 6-connecting rod, 7-sliding rod, 8-supporting block, 9-safety device, 901-base sliding groove, 902-sliding block, 903-first compression spring, 904-tact switch, 905-controller, 10-base, 11-guide plate, 12-sliding groove, 13-second compression spring, 14-clamping block, 15-third compression spring and 16-pushing block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …", "above … …", "above … …", "above", and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.

Claims (5)

1. The utility model provides a portable circular saw that building was used has cutting height control function, includes casing (1), handle (2), switch (3), saw bit (4) and power cord (5), its characterized in that: the improved structure of the automobile seat is characterized in that one end of a connecting rod (6) and a sliding rod (7) are fixedly connected to the outer side of the shell (1), the other end of the connecting rod (6) is rotatably connected with a supporting block (8) through a rotating shaft, a base (10) is fixedly connected to the lower end face of the supporting block (8), a safety device (9) is arranged on the inner side of the base (10), and a guide plate (11) is fixedly connected to the right position of the upper end face of the base (10).

2. The portable circular saw for construction with cutting height adjusting function of claim 1, wherein: safety device (9) include base spout (901) and controller (905), the inboard sliding connection of base spout (901) has slider (902), the up end fixedly connected with one end of first compression spring (903) of slider (902), the other end and base (10) fixed connection of first compression spring (903), the top of slider (902) is provided with dabs switch (904), the outside and base (10) fixed connection of dabbing switch (904).

3. The portable circular saw for construction with cutting height adjusting function of claim 2, wherein: the part of the sliding block (902) protruding out of the base (10) is arranged in a circular arc mode, and the vertical length of the part of the sliding block (902) protruding out of the base is equal to the length of the distance between the upper end face of the sliding block (902) and the lower end face of the light touch switch (904).

4. The portable circular saw for construction with cutting height adjusting function of claim 2, wherein: the utility model discloses a slide bar (11) and slide bar (7) are fixed on the guide plate, spout (12) have been seted up to the inboard of deflector (11), the inboard and slide bar (7) sliding connection of spout (12), the inboard one end of fixedly connected with second compression spring (13) of slider (902), the other end fixedly connected with fixture block (14) of second compression spring (13), the outside and slide bar (7) sliding connection of fixture block (14), the outside and deflector (11) looks block of fixture block (14), the outside fixedly connected with one end of third compression spring (15) of deflector (11), the other end fixedly connected with ejector pad (16) of third compression spring (15), the outside and deflector (11) sliding connection of ejector pad (16), the outside and fixture block (14) of ejector pad (16) contact.

5. The portable circular saw for construction having a cutting height adjusting function according to claim 2, wherein: the number of the first compression springs (903) is two, and the two first compression springs (903) are symmetrically arranged on two sides of the light touch switch (904).

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