Electric tool air cylinder and air cylinder assembly

Abstract

The electric tool air cylinder comprises an air cylinder body and an installation barrel, the installation barrel is arranged outside the air cylinder body in a sleeved mode, a piston rod of the air cylinder body is fixedly connected with the installation barrel, rectangular openings are formed in the four side faces of the installation barrel respectively, a plurality of connecting grooves are formed in one ends of the rectangular openings respectively, and the connecting grooves are connected with the piston rod of the air cylinder body. And a plurality of operation heads are arranged in the rectangular openings side by side, a connecting base is installed at one end of each operation head, the connecting bases are movably arranged in the connecting grooves, and the outer portion of the installation cylinder is sleeved with a positioning frame for synchronously pressing and positioning the multiple connecting bases. The air cylinder is simple in structure, the air cylinder body is provided with a plurality of different kinds of operation heads, and the operation heads can be replaced so as to adapt to different conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of air cylinder, concretely relates to an electric tool air cylinder and air cylinder assembly. BACKGROUND

[0002] The air cylinder structure is a pneumatic actuator that converts the pressure energy of compressed gas into mechanical energy in pneumatic transmission. The air cylinder has two types of reciprocating linear motion and reciprocating swing, and is used for power output in electric tools. However, the air cylinder structure is simple, and the air cylinder used in the electric tool is provided with an operating head such as an impact head or a drill bit. However, the air cylinder can only be provided with one operating head, and another function needs to be replaced by another air cylinder, which causes poor adaptability and is troublesome to carry a large number of air cylinders, affecting use. SUMMARY

[0003] The utility model solves the technical problems that an electric tool air cylinder and air cylinder assembly are provided, different operating heads are provided, and the operating heads can be quickly replaced according to conditions to solve the problems in the background.

[0004] The utility model is realized through the following technical schemes: an electric tool air cylinder, including air cylinder body and installation cylinder, the installation cylinder is equipped with the outside of air cylinder body, the piston rod of air cylinder body is fixedly connected with the installation cylinder, four side surfaces of installation cylinder are equipped with rectangle mouth, one end of rectangle mouth is equipped with a plurality of connecting grooves, a plurality of operating heads are side by side arranged in rectangle mouth, one end of operating head is installed with connecting seat, connecting seat is movably arranged in connecting groove, the outside of installation cylinder is equipped with the positioning frame that a plurality of connecting seats are synchronous and pressed tightly and positioned.

[0005] As a preferred technical scheme, one side surface of the connecting seat is in contact with the inner wall surface of the connecting groove, the other side surface of the connecting seat is in contact with the inner side surface of the positioning frame, an axle hole is arranged on the connecting seat, an axle rod is arranged in the axle hole, and the two ends of the axle rod are installed on the inner side surface of the connecting groove.

[0006] As a preferred technical scheme, a plurality of limiting blocks are arranged on the outer wall surface of the installation cylinder near the positioning frame, one end of the positioning frame is in contact with the limiting block, a first screw hole is arranged on the outer wall surface of the positioning frame, a second screw hole is arranged on the outer wall surface of the installation cylinder opposite to the first screw hole, and a hand screw bolt is screwed in the first screw hole and the second screw hole.

[0007] As a preferred technical scheme, the inner side surface of the installation cylinder is not in contact with the outer wall surface of the air cylinder body, the four corners in the installation cylinder are formed into an arc-shaped mounting surface, a plurality of ball grooves are arranged on the mounting surface, a ball is movably installed in the ball groove, and a part of the ball extends to the outside along the opening of the ball groove and is in contact with the outer wall surface of the air cylinder body.

[0008] As a preferred technical solution, the mounting cylinder is made of a metal material.

[0009] As a preferred technical solution, the outer wall surface of the operating head is not in contact with the cylinder body.

[0010] As a preferred technical solution, the cylinder body is provided with a fixing seat at an end away from the mounting cylinder.

[0011] A cylinder assembly comprises the electric tool cylinder.

[0012] The utility model discloses the beneficial effect is: the utility model discloses simple structure, and the cylinder body is with a plurality of different kinds of operating head, and operating head can be replaced between, to adapt to different situations, and the replacement operation is simple, and rotates any one operating head, can, greatly increase the convenience. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will be briefly introduced the drawing needed to be used in the embodiment or prior art description, obviously, the drawing in the following description only some embodiments of the utility model, for ordinary skilled person in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0014] Figure 1 It is the whole structure schematic diagram of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the utility model after removing the positioning frame and arbitrary connecting seat;

[0016] Figure 3 It is the structure schematic diagram of the mounting cylinder of the utility model;

[0017] Figure 4 It is the inside view of the mounting cylinder of the utility model.

[0018] Among them, 1, cylinder body;2, mounting cylinder;3, rectangular mouth;4, operating head;5, hand screw bolt;6, positioning frame;7, limit block;8, connecting seat;9, connecting groove;10, fixing seat;11, shaft;12, ball. DETAILED DESCRIPTION

[0019] The embodiments of the utility model will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0020] All features disclosed in this specification, and / or all elements of the methods disclosed, may be combined in any combination, provided that the combinations do not exclude any technical effect of one or another disclosed feature or element.

[0021] Any feature in the present specification, including any accompanying claims, abstract, and drawings, may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. That is, unless expressly stated otherwise, every feature disclosed is one example only of a generic series of equivalent or similar features.

[0022] As Figure 1 , Figure 2 , Figure 3 and Figure 4 illustrated, the utility model discloses a kind of electric tool cylinders, including cylinder body 1 and installation cylinder 2, the installation cylinder 2 is set on the outside of cylinder body 1, the piston rod of cylinder body 1 is fixedly connected with installation cylinder 2, rectangular port 3 is equipped on four side surfaces of installation cylinder 2, multiple connecting grooves 9 are equipped in one end of rectangular port 3, multiple operating heads 4 are equipped in rectangular port 3 side by side, connecting seat 8 is equipped in one end of operating head 4, connecting seat 8 is movably arranged in connecting groove 9, the outside of installation cylinder 2 is equipped with the positioning frame 6 that multiple connecting seat 8 is synchronously pressed and positioned;

[0023] The device comes with different operating heads, and can drive the operation of the installation cylinder and operating head through the extension and retraction of the piston rod on the cylinder.

[0024] In the embodiment, one side surface of connecting seat 8 is in contact with the inner wall surface of connecting groove 9, and the other side surface of connecting seat 8 is in contact with the inner side surface of positioning frame 6, an axle hole is arranged on connecting seat 8, an axle rod 11 is arranged in the axle hole, and both ends of the axle rod 11 are mounted on the inner side surface of connecting groove 9.

[0025] The end of the connecting seat away from the operating head is arranged in an arc-shaped structure, so that the connecting seat can rotate smoothly in the connecting groove when rotating around the axle rod, avoiding being blocked by the inner wall of the connecting groove.

[0026] In the embodiment, multiple limiting blocks 7 are arranged on the outer wall surface of installation cylinder 2 in a rectangular structure close to positioning frame 6, one end of positioning frame 6 is in contact with limiting block 7, a first screw hole is arranged on the outer wall surface of positioning frame 6, a second screw hole is arranged on the outer wall surface of installation cylinder 2 opposite to the first screw hole, and a hand screw bolt 5 is threadedly connected in the first screw hole and the second screw hole.

[0027] In the embodiment, the inner side surface of the mounting cylinder 2 is not in contact with the outer wall surface of the cylinder body, the four corners inside the mounting cylinder 2 are formed into arc-shaped mounting surfaces, a plurality of ball grooves are arranged on the mounting surfaces, and a ball 12 is movably arranged in each ball groove. A part of the ball 12 extends to the outside along the opening of the ball groove and is in contact with the outer wall surface of the cylinder body 1. The ball can position the mounting cylinder, avoiding the swinging of the mounting cylinder, and ensuring the smoothness when the mounting cylinder rubs against the cylinder body.

[0028] In the embodiment, the mounting cylinder 2 is made of metal material, increasing the firmness and service life.

[0029] In the embodiment, the outer wall surface of the operating head 4 is not in contact with the cylinder body 1, avoiding the friction between the operating head and the cylinder body during the movement of the mounting cylinder.

[0030] In the embodiment, a fixing seat 10 is arranged at the end of the cylinder body 1 away from the mounting cylinder 2. The fixing seat can be fixed on any plane by screws or a handle is arranged on the fixing seat, and the device can be directly held and operated by the handle.

[0031] The application further discloses a cylinder assembly comprising the electric tool cylinder.

[0032] In use, different operating heads can be used according to the situation on site. In use, the hand screw bolt is screwed out of the second screw hole, the positioning frame is detached after losing the fixation of the hand screw bolt, the operating head is rotated around the shaft rod to be selected, until the operating head is turned out of the rectangular opening and arranged in parallel with the cylinder body. After being turned out, the positioning sleeve is sleeved on the inside of the mounting cylinder again, the connecting seat is pressed and positioned by the positioning frame, so that the operating head after being turned and the operating head not being turned are all pressed and positioned, to ensure the stability.

[0033] Conversely, when replacement is needed, the positioning frame is detached again, the operating head turned out of the rectangular opening before is turned back into the rectangular opening again, and the new operating head is turned out of the rectangular opening again, facilitating the operation and increasing the adaptability.

[0034] The above merely illustrates the specific embodiments of the application, but the protection scope of the application is not limited thereto. Any change or replacement without creative labor is covered in the protection scope of the application. Therefore, the protection scope of the application should be subject to the protection scope defined in the claims.

Claims

1. A power tool cylinder, characterized by: The utility model provides a kind of electric tool cylinder, including cylinder body (1) and installation cylinder (2), the installation cylinder (2) is sleeved on the outside of cylinder body (1), the piston rod of cylinder body (1) is fixedly connected with installation cylinder (2), rectangular mouth (3) is equipped on four sides of installation cylinder (2), a plurality of connecting grooves (9) are equipped in one end of rectangular mouth (3), a plurality of operating heads (4) are equipped side by side in rectangular mouth (3), connecting seat (8) is mounted in one end of operating head (4), connecting seat (8) is movably arranged in connecting groove (9), the outside of installation cylinder (2) is sleeved with positioning frame (6) that a plurality of connecting seat (8) are synchronously pressed and positioned.

2. The power tool cylinder of claim 1, wherein: One side of connecting seat (8) is in contact with the inner wall of connecting groove (9), the other side of connecting seat (8) is in contact with the inner side of positioning frame (6), shaft hole is equipped on connecting seat (8), shaft rod (11) is equipped in shaft hole, and both ends of shaft rod (11) are mounted on the inner side of connecting groove (9).

3. The power tool cylinder of claim 1, wherein: The outer wall of installation cylinder (2) is close to positioning frame (6) and is installed with a plurality of limiting blocks (7) in rectangular structure, one end of positioning frame (6) is in contact with limiting block (7), the outer wall of positioning frame (6) is provided with first screw hole, the outer wall of installation cylinder (2) is provided with second screw hole opposite to first screw hole, and hand screw bolt (5) is screwed in first screw hole and second screw hole.

4. The power tool cylinder of claim 1, wherein: The inner side of installation cylinder (2) is not in contact with the outer wall of cylinder body, and the four corners inside installation cylinder (2) form arc-shaped mounting surface, a plurality of ball grooves are provided on the mounting surface, ball (12) is movably mounted in ball groove, and part of ball (12) extends to outside along the opening of ball groove and is in contact with the outer wall of cylinder body (1).

5. The power tool cylinder of claim 1, wherein: Installation cylinder (2) is made of metal material.

6. The power tool cylinder of claim 1, wherein: The outer wall of operating head (4) is not in contact with cylinder body (1).

7. The power tool cylinder of claim 1, wherein: Fixed seat (10) is mounted on the end of cylinder body (1) away from installation cylinder (2).

8. A cylinder assembly characterized by: The utility model provides a kind of electric tool cylinder, including the electric tool cylinder as claimed in any one of claims 1-7.

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