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CN-224209202-U - Saw blade protection structure of compound saw

CN224209202UCN 224209202 UCN224209202 UCN 224209202UCN-224209202-U

Abstract

The utility model discloses a saw blade protection structure of a compound saw, which comprises a protection cover, wherein the protection cover is fixedly connected to the lower end face of a movable platen of the compound saw, the protection cover has a first working position and a second working position relative to a saw blade of the compound saw, when the protection cover is positioned at the first working position, the protection cover shields the cutting edge at the upper end of the saw blade, the cutting edge at the lower end of the saw blade extends out of the protection cover, when the protection cover is positioned at the second working position, the protection cover shields the cutting edge at the lower end of the saw blade, and the cutting edge at the upper end of the saw blade extends out of the protection cover. The protective cover adopts a lengthened design, so that the composite saw can effectively protect the cutting edge of the saw blade no matter in a bench cutting working state or a beveling working state. When the compound saw is in a bevel cutting working state, the protective cover shields the cutting edge at the upper end of the saw blade, and when the compound saw is in a bench cutting working state, the protective cover shields the cutting edge at the lower end of the saw blade. The protective cover is convenient to use, safe and reliable.

Inventors

  • DUAN BOWEN
  • YAN GUOLIANG

Assignees

  • 宁波协诚电动工具有限公司
  • 宁波卡伦特电器有限公司

Dates

Publication Date
20260508
Application Date
20250526

Claims (8)

  1. 1. A saw blade protection structure of a compound saw comprises a protection cover (1) and is characterized in that the protection cover (1) is fixedly connected to the lower end face of a movable platen (101) of the compound saw (100), the protection cover (1) has a first working position and a second working position relative to a saw blade (102) of the compound saw (100), when the protection cover (1) is located at the first working position, the protection cover (1) shields the cutting edge at the upper end of the saw blade (102), the cutting edge at the lower end of the saw blade (102) extends out of the protection cover (1), and when the protection cover (1) is located at the second working position, the protection cover (1) shields the cutting edge at the lower end of the saw blade (102), and the cutting edge at the upper end of the saw blade (102) extends out of the protection cover (1).
  2. 2. The saw blade guard structure of a compound saw according to claim 1, wherein the upper end of the guard (1) is provided with a connecting portion (11) bent outward, and the guard (1) is detachably and fixedly connected to a movable platen (101) of the compound saw (100) through the connecting portion (11).
  3. 3. A blade guard structure of a compound saw according to claim 1, wherein the guard (1) comprises a first cover plate (2) and a second cover plate (3), and a receiving space (12) for receiving the saw blade (102) is formed between the first cover plate (2) and the second cover plate (3).
  4. 4. A saw blade protecting structure of a compound saw according to claim 3, wherein the two side edges of the first cover plate (2) are provided with first limiting parts (21) bent inwards, the two side edges of the second cover plate (3) are provided with second limiting parts (31) bent inwards, and the first limiting parts (21) are correspondingly matched with the second limiting parts (31).
  5. 5. A blade guard structure for a compound saw according to claim 3, wherein the second cover plate (3) is provided with a relief groove (32) for the driver output shaft of the compound saw (100) to pass through, and the relief groove (32) can provide relief for the driver output shaft when the protective cover (1) moves up and down relative to the saw blade (102).
  6. 6. The saw blade protecting structure of the compound saw as claimed in claim 5, wherein the opening of the yielding groove (32) is provided with a sealing strip (33), and the sealing strip (33) is detachably connected with the second cover plate (3).
  7. 7. The saw blade protecting structure of the compound saw of claim 3, wherein the first cover plate (2) is provided with an avoidance hole (22), the avoidance hole (22) comprises a kidney-shaped hole (221) and a round hole (222), and the kidney-shaped hole (221) and the round hole (222) are sequentially arranged from top to bottom and are communicated with each other.
  8. 8. The saw blade protecting structure of the compound saw according to claim 1, wherein the corner of the lower end of the protecting cover (1) is provided with a unfilled corner structure (13).

Description

Saw blade protection structure of compound saw Technical Field The utility model relates to the technical field of electric saws, in particular to a saw blade protection structure of a compound saw. Background The compound saw is a common electric cutting tool, and can be respectively switched to two different working states of the oblique saw and the bench saw. Existing compound saws include a saw blade, a movable platen (i.e., a table cutting table) and a base (i.e., a miter cutting table). The specific structure of the compound saw can also participate in a compound saw disclosed in Chinese patent (issued patent number: CN 211614495U). And when the compound saw is in a cutting working state, feeding and cutting are performed from a movable platen above the compound saw, and when the compound saw is in a beveling working state, feeding and cutting are performed from a base below the compound saw. According to current safety regulations, the power miter saw and table saw should ensure that the blade edge is not exposed and accessible in the non-operating state. For the compound saw, when the compound saw is switched to any working state of bench cutting or bevel cutting, the cutting edge of the saw blade corresponding to the other working state is not exposed and is not accessible. When the compound saw is in a bench cutting mode, the cutting edge at the lower end of the saw blade cannot be shielded due to the fact that the protective cover fixedly connected with the movable platen is short, and therefore the cutting edge at the lower end of the saw blade is not exposed through the auxiliary protective cover which is independently configured. An auxiliary protection cover of a compound saw disclosed in Chinese patent (issued publication number: CN 2411068Y) is integrally formed by a cavity box formed by coamings, and when the auxiliary protection cover is in operation, the auxiliary protection cover is required to be placed to allow the bench cutting mode to work, otherwise, the auxiliary protection cover cannot be converted into a task to work. Therefore, operators are forced to omit the step of installing the protective cover in the production process for saving labor for the drawing, and the aim of protecting safety is really achieved. However, the auxiliary protection cover of the compound saw disclosed in the prior art has the following defects that the auxiliary protection cover is an independent accessory, the auxiliary protection cover needs to be taken down or put on the machine when the compound saw is in a working state, so that the use is inconvenient, and once the auxiliary protection cover is damaged or lost, the compound saw cannot be converted into a bench cutting mode, so that the normal use of the compound saw is affected. There is a need for improvements over the prior art. Disclosure of utility model The utility model aims at overcoming the defects and shortcomings of the prior art and provides a saw blade protection structure of a compound saw, which comprises a protective cover, wherein when the compound saw is in a beveling working state, the protective cover shields the cutting edge at the upper end of the saw blade; when the compound saw is in a bench cutting working state, the protective cover shields the cutting edge at the lower end of the saw blade, and the compound saw is convenient to use, safe and reliable. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a saw bit protective structure of compound saw, protective structure includes the protection casing, protection casing fixed connection is to the lower terminal surface of the movable platen of compound saw, the protection casing has first working position and second working position for the saw bit of compound saw, when the protection casing is located first working position, the protection casing shelters from the blade of saw bit upper end, the blade of saw bit lower extreme stretches out in the protection casing, when the protection casing is located second working position, the protection casing shelters from the blade of saw bit lower extreme, the blade of saw bit upper end stretches out in the protection casing. Further, the upper end of the protective cover is provided with a connecting part bent outwards, and the protective cover is detachably and fixedly connected to the movable platen of the compound saw through the connecting part. Further, the protective cover comprises a first cover plate and a second cover plate, and a containing space for containing the saw blade is formed between the first cover plate and the second cover plate. Further, the two side edges of the first cover plate are provided with first limiting parts bending inwards, the two side edges of the second cover plate are provided with second limiting parts bending inwards, and the first limiting parts and the second limiting parts are correspondingly matched. Furt