Expansion device for O-shaped ring

Abstract

The utility model discloses an O-shaped ring expansion device which comprises a mounting plate, four rotating shafts are evenly and rotatably connected to the interior of the mounting plate, one end of each rotating shaft is fixedly connected with a rotating disc, the opposite sides of the four rotating discs are fixedly connected with supporting rods of an L-shaped structure, and the supporting rods of the L-shaped structure are fixedly connected with the mounting plate. A driving assembly is arranged on the side, opposite to the rotating disc, of the mounting plate and used for driving the four rotating shafts to rotate synchronously. By means of the structure, the O-shaped rings are arranged on the outer sides of the supporting rods in a sleeving mode, the rotating shaft is driven to rotate under the action of the driving assembly, rotating operation of the rotating disc can be achieved when the rotating shaft rotates synchronously, the supporting rods can be driven to rotate outwards with the rotating shaft as the center under the rotating action of the rotating rotating disc, and therefore the distances among the four supporting rods can be adjusted to complete expansion work of the O-shaped rings. The O-shaped ring expanding device is simple in structure and convenient to operate, realizes rapid and uniform expansion of the O-shaped ring, and is favorable for improving the mounting efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical tooling, in particular to an expansion device for an O-ring. Background Art

[0002] O-ring is a rubber sealing ring with a circular cross section. It is named because of its O-shaped cross section and is widely used in the sealing of various mechanical equipment, such as machine tools, ships, automobiles, aerospace equipment, chemical machinery, etc. O-rings are not only used for static sealing, but also for dynamic sealing, such as sealing devices for reciprocating motion and low-speed rotation.

[0003] As a commonly used sealing element, O-rings play a role in preventing liquid or gas leakage in mechanical equipment. During the installation process, O-rings usually need to be expanded to adapt to the installation position. However, traditional expansion methods often rely on manual or simple tools, which is not only inefficient, but also easily damages the O-rings, affecting the sealing effect. Therefore, the utility model provides an expansion device for O-rings to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to provide an expansion device for an O-ring, wherein the O-ring is sleeved on the outside of a support rod, and the rotating shaft is driven to rotate under the action of a driving component. When the rotating shaft rotates synchronously, the rotation operation of the turntable can be realized, and under the rotation action of the rotating turntable, the support rod can be driven to rotate outward with the rotating shaft as the center, so that the distance between the four support rods can be adjusted to complete the expansion of the O-ring. The utility model has a simple structure and is easy to operate, and realizes rapid and uniform expansion of the O-ring, which is beneficial to improving installation efficiency.

[0005] To achieve the above-mentioned purpose, an O-ring expansion device is provided, comprising a mounting plate, wherein four rotating shafts are evenly rotatably connected inside the mounting plate, one end of each of the four rotating shafts is fixedly connected to a turntable, and the four turntables are fixedly connected to opposite sides thereof with a support rod of an L-shaped structure, and a drive assembly is arranged on the side of the mounting plate opposite to the turntable, and the drive assembly is used to drive the four rotating shafts to rotate synchronously.

[0006] According to the O-ring expansion device, the drive assembly includes a support frame fixedly connected to the outside of the mounting plate, a motor fixedly connected to the top of the support frame, a second gear fixedly connected to the end of the motor output shaft and four first gears fixedly connected to the other end of the rotating shaft, and the four first gears are all meshed with the second gear.

[0007] According to the O-ring expansion device, the bottom plate of the mounting plate is fixedly connected to a base, and the base is configured as an L-shaped structure.

[0008] According to the O-ring expansion device, a material box is fixedly connected to one side of the base close to the support rod.

[0009] According to the O-ring expansion device, it also includes a foot switch arranged below the support rod, and the motor is electrically connected to the foot switch.

[0010] According to the O-ring expansion device, the outer sides of the four support rods are all configured as smooth structures.

[0011] The utility model has the following beneficial effects:

[0012] Compared with the prior art, this O-ring expansion device puts the O-ring on the outside of the support rod, and controls the operation of the motor through a foot switch. The operation of the motor drives the second gear to rotate, and the first gear can be driven to rotate under the action of the rotating second gear, so that the rotation of the first gear can better drive the rotation of the rotating shaft. When the rotating shaft rotates synchronously, the rotation operation of the turntable can be realized. Under the rotation action of the rotating turntable, the support rod can be driven to rotate outward with the rotating shaft as the center, so that the distance between the four support rods can be adjusted to complete the expansion of the O-ring. It has a simple structure and is easy to operate, and realizes rapid and uniform expansion of the O-ring, which is beneficial to improving installation efficiency.

[0013] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0015] Figure 1 This is a first overall structural schematic diagram of an O-ring expansion device of the utility model;

[0016] Figure 2 This is a second overall structural schematic diagram of an O-ring expansion device of the utility model;

[0017] Figure 3 This is a third overall structural schematic diagram of an O-ring expansion device of the utility model.

[0018] Legend:

[0019] 1. Mounting plate; 2. Rotating shaft; 3. Turntable; 4. Support rod; 5. Support frame; 6. Motor; 7. First gear; 8. Second gear; 9. Material box; 10. Foot switch; 11. Base. DETAILED DESCRIPTION

[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0021] Reference Figure 1-3 The utility model embodiment provides an O-ring expansion device, which includes a mounting plate 1, wherein four rotating shafts 2 are evenly rotatably connected inside the mounting plate 1, one end of each of the four rotating shafts 2 is fixedly connected to a turntable 3, and each of the four turntables 3 is fixedly connected to an L-shaped support rod 4 on the opposite side of the mounting plate 1 and the turntable 3. A driving component is provided on the side of the mounting plate 1 opposite to the turntable 3, and the driving component is used to drive the four rotating shafts 2 to rotate synchronously. When the driving component drives the rotating shafts 2 to rotate synchronously, the turntable 3 can be rotated. Under the rotation action of the rotating turntable 3, the support rod 4 can be driven to rotate outward with the rotating shaft 2 as the center, so that the distance between the four support rods 4 can be adjusted to complete the expansion of the O-ring. The structure is simple, the operation is convenient, and the rapid and uniform expansion of the O-ring is realized, which is beneficial to improving the installation efficiency.

[0022] The driving assembly includes a support frame 5 fixedly connected to the outside of the mounting plate 1, a motor 6 fixedly connected to the top of the support frame 5, a second gear 8 fixedly connected to the end of the output shaft of the motor 6, and four first gears 7 fixedly connected to the other end of the rotating shaft 2. The four first gears 7 are all meshed with the second gear 8. The operation of the motor 6 drives the second gear 8 to rotate, and the rotating second gear 8 can drive the first gear 7 to rotate, so that the rotation of the first gear 7 can better drive the rotating shaft 2 to rotate.

[0023] The bottom plate of the mounting plate 1 is fixedly connected with a base 11, and the base 11 is arranged in an L-shaped structure. The base 11 can be used to support the mounting plate 1 so that it has a certain height for the user to operate at the support rod 4, and the L-shaped base 11 has a larger contact area with the ground and a more stable support.

[0024] A material box 9 is fixedly connected to one side of the base 11 close to the support rod 4. The material box 9 can be used to place O-rings and quilt cover workpieces, which is convenient for taking materials and provides convenience for users.

[0025] It also includes a foot switch 10 arranged under the support rod 4. The motor 6 is electrically connected to the foot switch 10. The operating state of the motor 6 can be controlled by controlling the foot switch 10 with the foot, which facilitates the user's hands to operate the wearing or removal of the O-ring.

[0026] The outer sides of the four support rods 4 are all designed to be smooth structures. The support rods 4 with smooth structures have less friction, which facilitates the removal of the O-ring after being stretched.

[0027] Working principle: put the O-ring on the outside of the support rod 4, control the operation of the motor 6 by the foot switch 10, the operation of the motor 6 drives the second gear 8 to rotate, and the first gear 7 can be driven to rotate under the action of the rotating second gear 8, so that the rotation of the first gear 7 can better drive the rotation of the shaft 2, and the rotation operation of the turntable 3 can be realized when the shaft 2 rotates synchronously. Under the rotation action of the rotating turntable 3, the support rod 4 can be driven to rotate outward with the shaft 2 as the center, so that the distance between the four support rods 4 can be adjusted to complete the expansion of the O-ring. The structure is simple and the operation is convenient, and the rapid and uniform expansion of the O-ring is realized, which is conducive to improving the installation efficiency.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An O-ring expansion device, characterized in that: The invention comprises a mounting plate (1), wherein four rotating shafts (2) are evenly rotatably connected inside the mounting plate (1), one end of each of the four rotating shafts (2) is fixedly connected to a rotating disk (3), and each of the four rotating disks (3) is fixedly connected to an L-shaped support rod (4) on one side facing the other, and a driving assembly is arranged on the side of the mounting plate (1) opposite to the rotating disk (3), and the driving assembly is used to drive the four rotating shafts (2) to rotate synchronously.

2. An O-ring expansion device according to claim 1, characterized in that: The driving assembly comprises a support frame (5) fixedly connected to the outside of the mounting plate (1), a motor (6) fixedly connected to the top of the support frame (5), a second gear (8) fixedly connected to the end of the output shaft of the motor (6), and four first gears (7) fixedly connected to the other end of the rotating shaft (2), the four first gears (7) all being meshingly connected to the second gears (8).

3. An O-ring expansion device according to claim 2, characterized in that: The bottom plate of the mounting plate (1) is fixedly connected to a base (11), and the base (11) is configured as an L-shaped structure.

4. An O-ring expansion device according to claim 3, characterized in that: A material box (9) is fixedly connected to a side of the base (11) close to the support rod (4).

5. An O-ring expansion device according to claim 4, characterized in that: It also includes a foot switch (10) disposed below the support rod (4), and the motor (6) is electrically connected to the foot switch (10).

6. An O-ring expansion device according to claim 5, characterized in that: The outer sides of the four support rods (4) are all configured as smooth structures.

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