RU1770663C - Quick-release joint for hoses - Google Patents

Abstract

SUMMARY OF THE INVENTION The coupling halves are made with end rails in the form of a ratchet mounted with the possibility of fixing and mutual displacement of the coupling halves in the axial direction when they are turned. fasteners made in the form of crackers in contact with conical surfaces and mounted with the possibility of movement to the axis of the connection The nipple is installed with the possibility According to the axial movement relative to the coupling halves, the return springs are installed inside the rusks from the outer surface of the hose and are located along the axis. The angle of inclination of the conical surfaces is less than the angle of self-braking 3

Description

The invention relates to devices for connecting plaster hoses and may find application in construction and other industries for connecting hoses and flexible pipes

It is known to connect flexible pipelines in accordance with M-648789 class F 16 L 33/22, consisting of nipples of two coupling halves and fasteners

The main disadvantage of this device is its unreliability due to the central mounting of the coupling halves. As a result of Tai-oro mounting, the force from the screws connecting the coupling halves is transmitted to the connected hoses unevenly both in length and in diameter due to the fact that the clamping of the sleeves is tightened decreases along the length from the center of the connection to the periphery of the coupling half, as it were, opening up the possibility of breaking out the hoses with increasing axial

forces directly proportional to the pressure inside the hoses Uneven clamping of the hoses in diameter leads to excessive deformation of the hoses in some places, while in others (at the junctions of the coupling halves) the clamping force of the hoses is zero. This distribution of the forces in diameter also reduces the reliability of the connection

The disadvantages of the connection that reduce its reliability can also be attributed to the fact that if the diameters of the two connected hoses deviate (within the tolerance), one of them will be clamped harder (a hose with a greater tolerance) and the other is weaker. This can also lead to a tear-off of the less clamped end

The use of threaded elements in a known joint also reduces its operational characteristics.

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The disadvantage is the complexity of mounting and dismounting the connection, requiring a special tool (wrench), the use of which can be much more difficult, for example, in the conditions of the construction site when connecting plaster hoses, due to the possibility of clogging the cavities in which the heads of the fixing screws are placed.

All this, taken together, reduces the reliability of the known compound and degrades its performance.

In Fig.1 shows a quick connection of hoses in the initial position: in Fig.2 - also, in the working position; in Fig.Z - section aa in Fig.2; figure 4 is a section bB in figure 2.

The quick coupling of the hoses contains coupling halves 1 and 2, on the ends of which the protrusions 3 are made in the form of a ratchet. Inside the coupling halves 1 and 2, a nipple 4. is installed, which can be moved axially relative to the coupling halves 1 and 2. The end sections of the nipples A and the coupling halves 1 and 2. face each other are made conical and form cavities 5. in which fasteners are placed in the form of crackers 6. On the inner surface of the crackers 6, protrusions 7 are made, between which a return spring is located 8. On the half-couplings 1 and 2, holes 9 are made in which the gate 10 is inserted to rotate the half-couplings 1 and 2 relative to each other.

The connection from the opening is fixed by ratchet teeth 11. located on the coupling half 2 and the holder 12. The holder 12 is fixed against rotation relative to the coupling half 1 by the stopper 13 located in the longitudinal groove 14 of the coupling half. The stopper 13 is secured by a nut 15 located inside the coupling half 1. The spring 16 through the nut 15 and the stopper 13 closes the ratchet engagement of the cage 12 and the coupling half 1. The cage 12 has holes 1.7 for the gate 10 to pass through the holes 9 of the coupling half 1 and the holes 18 for the holes 18 displaced relative to the holes 9 Keeping out of the engagement of ratchet teeth 11.

The connection of the hoses is as follows.

The connecting hoses 19 are inserted into the half-couplings 1 and 2 all the way into the nipple 4. The hinges 10 are inserted into the holes 9 and the half-couplings 1 and 2 are turned by them. The half-couplings 1 and 2 are axially tightened by means of ratchet protrusions 3, reducing between the conical surfaces of the coupling halves 1 and 2 and the nipple 4. Located in the cavities 5

crackers 6 under the influence of the forces transmitted by the conical surfaces move to the center, clamping the hoses 19. With a difference in outer diameters

of the hoses 19, the nipple 4 is moved towards the hose with a smaller outer diameter until the efforts of clamping the crackers 6 are equalized.

With further tightening, the plumuft 1

0 and 2, the hoses 19 are clamped equally by the crackers 6 for any fluctuation in force by shifting the nipples 4 toward lower forces.

When turning the coupling halves 1 and 2 together

5, the ratchet tooth 11 of the ferrule 12 slides along the teeth of the m 11 of the coupling half 2, while the ferrule 12 moves relative to the coupling half 1 along the longitudinal groove 14. After the rotation of the coupling halves 1 and 2 is stopped,

0 due to the elastic deformation of the hoses 19, the connection tends to return to its original state. However, the ratchet tooth 11 of the coupling half 2 and the cage 12 under the action of the force of the spring 16 through the nut 15 and the stopper

5 to 13 engage with each other, locking the joint in position.

The dismantling of the connection is as follows.

Gate 10 through the offset hole

0 18 of the cage 12 is inserted into the hole 9 of the coupling half 1, while the cage 12 is disengaged from the coupling of the coupling 2. By rotating the shutters 10 in the opposite direction, the coupling halves 1 and 2 are extended to the original

5 position determined by the position of the longitudinal groove 14.

When sliding the coupling halves 1 and 2, the crackers 6 are released from the pressure of the conical surfaces of the coupling halves 1 and 2 and the nipple 4 and

0, under the influence of the return spring 8, return to their original position, releasing the hoses 19.

Such a constructive design of the quick-detachable connection of hoses makes it possible to increase its reliability. Assembly and disassembly of the resulting connection is simple; it is quick disconnect. hermetically sealed.

An advantage of this quick coupler is also that.

0 that it is constantly assembled into a single unit, and this improves the operational characteristics of the connection, increases the ease of maintenance.

Claims (2)

The claims 51. A quick-connect hose assembly comprising a nipple for securing the hoses, two half-couplings, and fasteners, characterized in that. what. in order to increase the reliability of the connection, the coupling halves are made with end protrusions in in the form of ratchet, installed with the possibility of fixing and mutual movement of the coupling halves in the axial direction when they are rotated, moreover, on the end sections of the coupling halves and nipples facing each other, conical surfaces are made that form cavities between themselves, in which fasteners are made, made in the form crackers in contact with said conical surfaces and mounted movably to the joint axis. 2. Connection pop.Ch.different from the fact that the nipple is installed with the possible 5 axial displacement relative to the coupling halves. 3 Connection PP. 1 and 2. characterized in that, in order to simplify installation work, it is provided with return springs installed inside the crackers from the outer surface of the hose and located along the axis of the connection. 4. Connection PP. 1-3. characterized in that the angle of inclination of the conical surfaces is less than the angle of self-braking. IL L 7 A. 9/4. 2. 5.-. J., 2JLr $ T S1. " -.f.-id-ig-J vx / vX / :; Fig / SS 1770663 6 8 1 / L X W / ". 06/5 J - D 6 /