KR940006796Y1 - Pipe connector structure - Google Patents

Abstract

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Description

Pipe rotation connection structure to maintain pressure balance of pressure fluid supply pipe

Figure 1 is a longitudinal sectional view showing a pipe rotation connection structure of the present invention.

* Explanation of symbols for main parts of the drawings

1: Rotator 1a: Body

1b: connecting end 2: body

2a, 6, 7, 8, 8 ': Euro 2b: Center hole

2c, 2d, 2d ', 3, 4: open groove 5: screw groove

9: bowl 10: plug

11: washer 12: bolt

13, 13 ',: Gland Nut 14, 14',: Packing

16: teflon washer

The present invention relates to a pipe rotation connection structure that is capable of maintaining the pressure balance of the pressure fluid supply pipe, and especially in a steel pipe for supplying a pressure fluid of ultra high pressure (about 1000 atm or more), the internal pressure fluid is connected without leaking to the outside. One side of the structure is rotatable and relates to a tube rotational connection structure so that the mutual pressure balance between each other can be maintained.

Conventionally, the connection structure of steel pipes for feeding ultra high pressure fluids adopts a fixed structure in which neither side can move, or the connection parts themselves cannot move, but the pressure fluids are made so that the pipe itself is somewhat flexible. It was only enough to connect the hose.

Therefore, in the case of the fixed structure, the use and application field is greatly limited, so it is very difficult to apply to the existing machine tools or automation equipment using the pressure fluid, and also in the use of the pressure hose as described above Short lifespan had a problem of low reliability.

The present invention is devised to solve such a conventional problem, while the pressure fluid to be fed in the coupling configuration of the body and the rotor can be smoothly fed to prevent the internal pressure fluid from leaking to the outside and the pressure balance By adopting a unique connection structure that can be maintained, the purpose of the present invention is to maintain the airtight cutting machine, washing machine, general work using pressure fluid by rotating the rotating part of the rotating body without excessive force with perfect airtight function. It is applicable to automated machines such as machines or robots, and provides a pipe connection structure that can greatly extend the service life.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

The present invention, as shown in Figure 1, consists of a connection assembly structure of the rotating body (1) and the body (2).

The rotor 1 is " "As the form, the main body 1a and the connection end part 1b are formed integrally, The main body 1a is formed in the side and lower opening grooves 3 and 4, and the connection end part 1b is a screw groove at the end. (5) is formed in the center of the flow path (6) is formed to be connected to each of the flow paths (7, 8, 8 '), one side open groove (3) of the flow path (6) plug (10) When the bowl 9 is press-fitted from the back, airtight is maintained, and the flow path 6 and the opening groove 4 communicate with each other, the flow paths 8 and 8 'are connected to the flow path 6 and the body 2 to be described later. While being formed so as to be in communication with the flow path 2a, the fastening fastening of the bolt 12 together with the washer 11 in the screw groove 5 is made possible.

Body 2 has a central hole (2b) is formed so that the connection end (1b) of the rotating body (1) close to the center and the flow path that communicates with the open groove (2c) on one side of the center hole (2b) 2a) is formed and open grooves 2d and 2d 'for screwing the gland nuts 13 and 13' are formed on both sides, respectively.

As the coupling portion of the rotating body 1 and the body 2, the center holes 2b and the packings 14 and 14 'are fitted to both sides, and the opening grooves 2d and the gland nut 13 are screwed together. The teflon washer 1b is fitted between the gland nut 13 and the main body 1a of the rotating body 1 while the gland nut 13 'is screwed into the open groove 2d' and the outer side thereof. After coupling the Teflon washer 16 'and the washer 11, it is possible to fasten with a bolt (12).

Reference numerals 17, 18, and 19 denote pressure release holes, respectively.

Next, the operation and effects of the present invention as described above will be described.

When the pressure fluid in the body 2 is fed to the rotating body 1, the pressure fluid includes the flow path 2a, the space between the packings 14 and 14 'of the central hole 2b, and the flow path 8.8'. , Which is supplied to the rotating body 1 through the flow path 6 and the flow path 7, wherein the pressure fluid in the ultra-high pressure state includes the packings 14 and 14 ′ on both sides of the gland nuts 13 and 13. The pressure in the direction of ") prevents the leakage of pressure fluid through the gap between the body 2 and the gland nuts 13, 13 ', and at the one end of the flow path 6, It can be press-fitted by the plug 10 to achieve an airtight fixation.

In addition, Teflon washers (16, 16 ') are inserted into the outer circumferential edges of the connecting end (1b) of the rotating body (1) to facilitate the rotation of the rotating body (1). Formed with symmetrical symmetry, structural rigidity can be balanced and smooth feeding can be achieved while preventing pressure drop during the feeding of pressure fluid, and mutual pressure equilibrium between the rotating body (1) and the body (2) can be achieved. have.

Therefore, the tube rotary connection structure of the present invention has a perfect airtight function between the rotating body 1 and the body 2 and the rotation of the rotating body 1 is made for the change of direction and the pressure fluid inside is smoothly fed. Due to the structural characteristics, the rotating body 1 and the body 2 can maintain pressure equilibrium, respectively, so that the connection steel pipe can be easily rotated, which can contribute to the automation of water flow cutting machine, washing machine, general machine tool or robot. At the same time, the service life can be extended.

Claims (1)

The rotating body 1 has a main body 1a and a connecting end portion 1b integrally formed, and the main body 1a has open grooves 3 and 4 and a screw groove 5 formed therein, and a flow path 6 is formed in the center thereof. And the plug 10 is screwed into the open groove 3 so that the bowl 9 is press-fitted to the flow path 6, and the flow path 6 is connected to each flow path 7, 8, 8 ′, and the body ( 2) is formed with the open grooves (2d, 2d ') for screwing the center hole (2b) and the gland nut (13, 13') on both sides communicated by the open groove (2c) and the flow path (2a) As the coupling part of the rotor 1 and the body 2, the center hole 2b is fitted with the packings 14 and 14 'and the opening grooves 2d and 2d' are ground nut 13 and 13 '. ) Are screwed together and the Teflon washers 16, 16 'are fitted between the main body 1a and the gland nut 13 of the rotating body 1 and the outer side of the gland nut 13'. The rotating body 1 and the body 2 can be coupled to each other by the fastening and fixing of the washer 11 and the bolt 12 at the end of the coupling end 1b. The possible rotation tube structure connecting the pressure fluid-level equalization, characterized in that the maintenance of songgwan.