CN215824414U

CN215824414U - Sealed dirt-proof reciprocating saw

Info

Publication number: CN215824414U
Application number: CN202122327944.8U
Authority: CN
Inventors: 秦文刚; 张趁趁
Original assignee: Jiangsu Mingwen Tool Technology Co ltd
Current assignee: Jiangsu Mingwen Tool Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-15
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a sealed dustproof reciprocating saw, which comprises a shell, a gear box, a saw blade, a chuck and a slide rod, wherein the gear box is arranged in the shell; the clamping head is fixedly arranged at the front end of the sliding rod and moves back and forth along with the sliding rod; the saw blade is arranged on the chuck; the gear box is characterized in that a sealing felt is arranged on the inner side of the front end of the gear box, the sealing felt is provided with a through hole for the sliding rod to penetrate through, and grease is stored on the periphery of the sealing felt. The sealed dustproof reciprocating saw can effectively prevent dust from entering the gear box, protect the sliding rod from being abraded due to the influence of the dust, and ensure the normal use of the reciprocating saw.

Description

Sealed dirt-proof reciprocating saw

Technical Field

The utility model relates to the technical field of reciprocating saws, in particular to a sealed dustproof reciprocating saw.

Background

Along with the development of science and technology, the appearance of an electric saw brings convenience to the production and life of people, and a reciprocating saw is an electric saw which enables a saw blade to cut in a reciprocating motion mode. The reciprocating saw drives the saw blade to cut workpieces in a reciprocating mode through reciprocating motion of the sliding rod, a large amount of dust is generated when the saw blade cuts the wood workpieces, the saw blade usually cuts in a return stroke, and the large amount of dust is brought to the direction of the machine body; dust brought back by the saw blade enters the moving surface of the sliding rod or the gear box along a gap between the sliding rod and the positioning bearing or between the sliding rod and the gear box; after dust enters the slide bar guide bearing, the slide bar is abraded and heated seriously; the abrasion life of the sliding rod is reduced; after the dust gets into the gear box, can increase the friction to inside moving part contact surface for moving part wearing and tearing are accelerated, consequently, need design one set can effectively alleviate the seal structure that the dust brought the puzzlement, and the present case produces from this.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealed dustproof reciprocating saw which can effectively prevent dust from entering a gear box, protect a sliding rod from being abraded due to the influence of the dust and ensure the normal use of the reciprocating saw.

In order to achieve the above purpose, the solution of the utility model is:

a sealed dustproof reciprocating saw comprises a shell, a gear box, a saw blade, a chuck and a sliding rod, wherein the gear box is arranged in the shell, the sliding rod capable of sliding back and forth is arranged in the gear box, the rear end of the sliding rod is arranged in the gear box, and the front end of the sliding rod extends out of the gear box; the clamping head is fixedly arranged at the front end of the sliding rod and moves back and forth along with the sliding rod; the saw blade is arranged on the chuck;

the gear box is characterized in that a sealing felt is arranged on the inner side of the front end of the gear box, the sealing felt is provided with a through hole for the sliding rod to penetrate through, and grease is stored on the periphery of the sealing felt.

The front end of the gear box is provided with a first cavity for accommodating the sealed felt, and the first cavity is filled with grease on the periphery of the sealed felt.

The gear box is provided with a first partition plate, a second partition plate and a third partition plate which are arranged from front to back, a first cavity is formed between the second partition plate and the third partition plate, and a second cavity is formed between the first partition plate and the second partition plate.

An elastic sealing gasket is arranged in the second cavity.

The sealing felt is provided with an outer wrapping framework.

The shell is formed by assembling a left shell and a right shell.

The gear box comprises a gear box body and a gear box cover which are matched with each other, a gear set used for driving the sliding rod to slide back and forth is arranged in the gear box body, and the gear box cover is matched on the gear box body.

The gear box is internally provided with a front guide block and a rear guide block which are arranged at intervals front and back, and the front guide block and the rear guide block are locked in the gear box through screws; two ends of the sliding rod respectively penetrate through the front guide block and the rear guide block, and a stop block is arranged between the front guide block and the rear guide block of the sliding rod.

After the scheme is adopted, the sealing felt is arranged at the front end of the gear box, dust debris can be prevented from entering the gear box along the cylindrical surface of the sliding rod, grease is stored on the periphery of the sealing felt, the grease can penetrate into the cylindrical surface of the sliding rod through the gap of the sealing felt, a lubricating effect is achieved, besides, the grease can also play a role in blocking a space and reducing dust from entering the gear box, and new sealing can be formed by the grease after the grease and the dust are fused into a paste on the surface of the sliding rod. According to the reciprocating saw, the sealing felt and the grease are arranged, so that dust and debris can be prevented from entering the gear box, the service life of the reciprocating saw is shortened due to abrasion of the sliding rod, the dust is prevented from entering the gear box, the friction of the contact surface of an internal moving part is increased, the abrasion of the moving part is accelerated, the trouble caused by the dust and the debris is greatly relieved, the normal use of the reciprocating saw is ensured, and the use efficiency of the reciprocating saw is improved.

Drawings

FIG. 1 is a schematic perspective view of the present invention (with the left housing removed);

FIG. 2 is a perspective cross-sectional view of the present invention;

FIG. 3 is a cross-sectional view of the present invention;

fig. 4 is an enlarged schematic view of a portion a of fig. 3.

Reference numerals:

1. a housing; 11. a left housing; 12. a right housing;

2. a gear case; 21. a first cavity; 22. a second cavity;

23. a first separator; 24. a second separator; 25. a third partition plate;

26. a gear housing; 27. a gearbox cover;

3. a saw blade;

4. a chuck;

5. a slide bar; 51. a stopper;

6. sealing the felt; 61. an elastic sealing gasket;

7. grease;

8. a front guide block;

9. and a rear guide block.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be connected or detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 to 4, the present invention provides a sealed and dustproof reciprocating saw, which comprises a housing 1, a gear box 2, a saw blade 3, a chuck 4 and a slide rod 5, wherein the gear box 2 is arranged in the housing 1, the gear box 2 is internally provided with the slide rod 5 capable of sliding back and forth, the rear end of the slide rod 5 is arranged in the gear box 2, and the front end of the slide rod 5 extends out of the gear box 2; the chuck 4 is fixedly arranged at the front end of the sliding rod 5 and moves back and forth along with the sliding rod 5; the saw blade 3 is arranged on the chuck 4; the gear box is characterized in that a sealing felt 6 is arranged on the inner side of the front end of the gear box 2, the sealing felt 6 is provided with a through hole for the sliding rod 5 to pass through, and grease 7 is stored on the periphery of the sealing felt 6.

According to the reciprocating saw, the sealing felt 6 is arranged at the front end of the gear box 2, dust debris can be prevented from entering the gear box 2 along the cylindrical surface of the sliding rod 5, grease 7 is stored on the periphery of the sealing felt 6, the grease 7 can penetrate into the cylindrical surface of the sliding rod 5 through the gap of the sealing felt 6 to play a lubricating role, besides, the grease 7 can play a role in sealing a space and reducing dust from entering the gear box 2, and the grease 7 can form new sealing after the grease 7 and the dust are fused into a paste on the surface of the sliding rod 5. According to the utility model, the sealing felt 6 and the grease 7 are arranged, so that dust and debris can be prevented from entering the gear box 2, the sliding rod 5 is prevented from being abraded, the service life is shortened, the dust is prevented from entering the gear box, the friction of the contact surface of an internal moving part is increased, the abrasion of the moving part is accelerated, and the trouble caused by the dust and debris is greatly relieved.

The front end of the gear box 2 is provided with a first cavity 21 for arranging a sealing felt 6, the sealing felt 6 is arranged in the first cavity 21, the periphery of the sealing felt 6 of the first cavity 21 is filled with a large amount of grease 7, and the grease 7 can penetrate into the cylindrical surface of the sliding rod 5 through the gap of the sealing felt 6 to achieve the lubricating effect.

The sealing felt 6 is provided with an outer packaging framework, the outer packaging framework can be made of metal or other materials, and the outer packaging framework can mainly shape the sealing felt 6 and is convenient to assemble.

The gearbox 2 is provided with a first partition plate 23, a second partition plate 24 and a third partition plate 25 which are arranged from front to back (namely arranged from the outside to the inside of the gearbox 2), a first cavity 21 is formed between the second partition plate 24 and the third partition plate 25, a second cavity 22 is formed between the first partition plate 23 and the second partition plate 24, the sealing felt 6 and the grease 7 are arranged in the first cavity 21, an elastic sealing gasket 61 is arranged in the second cavity 22, the elastic sealing gasket 61 is arranged at the front end of the sealing felt 6, and can be attached to the peripheral wall of the sliding rod 5 in all directions by the elasticity of the elastic sealing gasket 61, so that dust and debris are prevented from entering the gearbox 2.

The shell 1 is formed by assembling a left shell 11 and a right shell 12, and is convenient for installing components such as a gear box 2, a sliding rod 5 and the like.

The gear box 2 comprises a gear box body 26 and a gear box cover 27 which are mutually matched, a gear set used for driving the sliding rod to slide back and forth is arranged in the gear box body 26, the gear box cover 27 is matched on the gear box body 21, and the elastic sealing gasket 7 can prevent dust from entering a connecting gap between the gear box body 26 and the gear box cover 27.

The gear box 2 is internally provided with a front guide block 8 and a rear guide block 9 which are arranged at intervals in a front-back mode, the front guide block 8 and the rear guide block 9 are locked in the gear box 2 through screws, two ends of the sliding rod 5 respectively penetrate through the front guide block 8 and the rear guide block 9, a stop block 51 is arranged between the front guide block 8 and the rear guide block 9 of the sliding rod 5, and the sliding rod 5 can slide between the front guide block 8 and the rear guide block 9 through the stop block 51.

The above embodiments are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modifications made on the basis of the technical scheme according to the technical idea of the present invention fall within the protection scope of the present invention.

Claims

1. The utility model provides a sealed dirt-proof reciprocating saw which characterized in that: the gear box is arranged in the shell, a sliding rod capable of sliding back and forth is arranged in the gear box, the rear end of the sliding rod is arranged in the gear box, and the front end of the sliding rod extends out of the gear box; the clamping head is fixedly arranged at the front end of the sliding rod and moves back and forth along with the sliding rod; the saw blade is arranged on the chuck;

2. A sealed dust proof reciprocating saw as defined in claim 1, wherein: the front end of the gear box is provided with a first cavity for accommodating the sealed felt, and the first cavity is filled with grease on the periphery of the sealed felt.

3. A sealed dust proof reciprocating saw as defined in claim 2, wherein: the gearbox is provided with a first partition plate, a second partition plate and a third partition plate which are arranged from front to back, a first cavity is formed between the second partition plate and the third partition plate, and a second cavity is formed between the first partition plate and the second partition plate.

4. A sealed dust proof reciprocating saw as defined in claim 3, wherein: an elastic sealing gasket is arranged in the second cavity.

5. A sealed dust proof reciprocating saw as defined in claim 1, wherein: the sealing felt is provided with an outer wrapping framework.

6. A sealed dust proof reciprocating saw as defined in claim 1, wherein: the shell is assembled by a left shell and a right shell.

7. A sealed dust proof reciprocating saw as defined in claim 1, wherein: the gear box comprises a gear box body and a gear box cover which are matched with each other, a gear set used for driving the sliding rod to slide back and forth is arranged in the gear box body, and the gear box cover is matched on the gear box body.

8. A sealed dust proof reciprocating saw as defined in claim 1, wherein: the gear box is internally provided with a front guide block and a rear guide block which are arranged at intervals front and back, and the front guide block and the rear guide block are locked in the gear box through screws; two ends of the sliding rod respectively penetrate through the front guide block and the rear guide block, and a stop block is arranged between the front guide block and the rear guide block of the sliding rod.