CN205534709U - Ditch slot type connects - Google Patents

Abstract

The utility model provides a ditch slot type connects, is including connecting the body, connecting the body and appearing for hollow cylinder, its one end opening diameter is greater than other end opening diameter, the opening part is equipped with necking down portion, be equipped with the internal thread between necking down portion and the opening, still be equipped with the sealing washer between necking down portion and the internal thread. Ditch slot type connects, its simple structure, reasonable in design, the easily production, convenient to use, two opening parts of joint all are equipped with the diameter and are less than the necking down portion that connects the body, are equipped with the sealing washer moreover between necking down portion and internal thread, firm necking down portion can be pressed to the sealing washer, makes whole ditch slot type connects leakproofness fabulous, the phenomenon such as can not appear leaking.

Description

a grooved joint

technical field

The utility model belongs to the technical field of pipe fitting connection, in particular to a grooved joint.

Background technique

With the development of society, the development of people's life and environmental protection needs, various pipe networks and pipeline systems are widely used in petrochemical, gas, drinking water and other fields, and occupy an increasingly important and growing market . As one of the most common pipe fitting connections, joints have an important market position.

No matter which field it is used in, there are extremely high requirements for the rigidity and sealing performance of the joints. The joints in the prior art are easily deformed or damaged as the time of use is prolonged, and the sealing performance is reduced, and the sealing performance cannot be obtained. Guarantee, the connection effect is not ideal, and the corrosion resistance is poor, and the service life is short.

In addition, in addition to meeting the necessary rigidity and strength performance requirements, how to reduce the weight of the joint, save production costs, and reduce waste of resources also puts forward higher requirements for the current joint design.

Therefore, it is necessary to provide a new technical solution to solve the above problems.

Utility model content

Purpose of the utility model: In order to overcome the above disadvantages, the purpose of the utility model is to provide a grooved joint, which has a simple and reasonable structure, convenient use, good sealing performance and long service life.

Technical solution: In order to overcome the above shortcomings, the utility model provides a grooved joint, including a joint body, the joint body is a hollow cylinder, and the diameter of the opening at one end is larger than the opening diameter at the other end; In the neck, an internal thread is provided between the constriction and the opening; a sealing ring is also provided between the constriction and the internal thread. The grooved joint described in the utility model has simple structure, reasonable design, easy production, and convenient use. The two openings of the joint are provided with constricted parts with a diameter smaller than that of the joint body, and the constricted part and the internal thread There is a sealing ring between them, and the sealing ring can compress the neck tightly, so that the entire grooved joint has excellent sealing performance and no water leakage or the like. It is also possible to change the internal thread at the opening into an external thread as required to improve the adaptability of the entire joint. In the hydraulic test, under the test pressure of 5MPa, the pressure stabilization time is 20-30s, and no leakage occurs.

Further, in the above-mentioned grooved joint, a set of ring ribs is further provided in the middle of the joint body. By setting the ring rib, the strength of the grooved joint can be effectively increased, and deformation or damage caused by extrusion during transportation or excessive pressure during application can be prevented, and the service life is long.

Further, in the above-mentioned grooved joint, the ring rib is a V-shaped ring rib or a W-shaped ring rib. The smooth transition between the ring ribs greatly disperses the stress, which is conducive to improving the overall strength of the grooved joint and reducing deformation, depression and other problems.

Further, in the above-mentioned grooved joint, the joint body is further provided with a set of annular corrugations. The ring corrugation further increases the rigidity of the grooved joint and greatly disperses the stress. In the tensile strength test, the tensile strength R _m /MPa≥550, and the mechanical properties are superior.

Further, in the above-mentioned grooved joint, the sealing ring is an O-shaped rubber sealing ring. The O-shaped rubber sealing ring has good elasticity, good sealing performance, low application cost, stable performance and long service life.

Further, for the above-mentioned grooved joint, the joint body is made of S30408 stainless steel. S30408 stainless steel material has high temperature resistance, high toughness, good corrosion resistance and long service life.

Further, in the above-mentioned grooved joint, the joint body is stamped and formed at one time. The joint structure formed by one-time stamping has good sealing performance, and there will be no defects such as large welding gaps. When the grooved joint is used in a gas medium or requires an air tightness test, under the test pressure of 1.05MPa, immerse it in water to stabilize the pressure for 20-30s, and no bubbles will seep out.

Further, in the above-mentioned grooved joint, a phosphating layer is further provided on the inner side of the joint body. The phosphating layer provides protection for the metal, prevents the metal from being corroded to a certain extent, improves the anti-corrosion ability of the metal, and has a long service life. In addition, it also maintains the smoothness of the joints and meets the requirements of hygienic places. It can be used in the application of drinking water and water purification pipes, and can be used in many fields such as food, pharmaceuticals, dairy products, beer, beverages, and cosmetics.

Further, in the above-mentioned grooved joint, the wall thickness of the joint body is 0.8-1.2mm. Under the condition of ensuring rigidity, the wall is thin, the use of materials is reduced, and the cost of production is further reduced. It is suitable for large-scale production and has extremely high commercial value.

It can be seen from the above technical solution that the utility model has the following beneficial effects: the grooved joint described in the utility model has a simple and reasonable structure, is convenient to use, has strong rigidity, good sealing performance, low manufacturing cost, long service life, and High promotional value.

Description of drawings

Fig. 1 is the structural representation of groove joint described in the utility model;

Fig. 2 is the structural representation of W-shaped ring bar described in the utility model;

Fig. 3 is a structural schematic diagram of the V-shaped ring bar of the present invention.

In the figure: 1 joint body, 2 constricted part, 3 ring rib, 4 corrugation.

detailed description

Below in conjunction with accompanying drawing and specific embodiment, further illustrate the utility model.

Example 1

The grooved joint shown in FIG. 1 includes a joint body 1, which is made of S30408 stainless steel and formed by one-time stamping, with a wall thickness of only 0.8 mm. The joint body 1 is hollow cylindrical, and the opening diameter at one end is larger than the opening diameter at the other end; the opening is provided with a constriction 2, and an internal thread is provided between the constriction 2 and the opening; the constriction There is also an O-shaped rubber sealing ring between part 2 and the internal thread.

In addition, a group of ring ribs 3 is provided in the middle of the joint body 1 , as shown in FIG. 2 , the ring ribs 3 are W-shaped ring ribs 3 . At the same time, the joint body 1 is also provided with a set of annular corrugations 4, which further increases the rigidity of the grooved joint and has a long service life.

Example 2

The grooved joint shown in Fig. 1 includes a joint body 1, which is stamped and formed at one time, and the wall thickness is only 1.2mm. The joint body 1 is made of S30408 stainless steel, and the inner side of the joint body 1 is also provided with a phosphating layer. In addition, the joint body 1 is a hollow cylinder, the opening diameter of one end is larger than the opening diameter of the other end; the opening is provided with a constriction portion 2, and an internal thread is provided between the constriction portion 2 and the opening; the An O-shaped rubber sealing ring is also arranged between the constriction portion 2 and the internal thread.

In addition, a group of ring ribs 3 is provided in the middle of the joint body 1 , as shown in FIG. 3 , the ring ribs 3 are V-shaped ring ribs 3 . At the same time, the joint body 1 is also provided with a set of annular corrugations 4, which further increases the rigidity of the grooved joint and has a long service life.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements can also be made, and these improvements should also be considered It is the protection scope of the utility model.

Claims (9)

1. a plough groove type joint, including joint body (1), it is characterised in that: described joint body (1) is hollow cylinder, and its one end open diameter is more than other end opening diameter；Described opening part is provided with necking part (2), is provided with female thread between described necking part (2) and opening；It is additionally provided with sealing ring between described necking part (2) and female thread.

Plough groove type joint the most according to claim 1, it is characterised in that: described joint body (1) middle part is additionally provided with one group of ring muscle (3).

Plough groove type joint the most according to claim 2, it is characterised in that: described ring muscle (3) is V-ring muscle (3) or W shape ring muscle (3).

Plough groove type joint the most according to claim 1 and 2, it is characterised in that: described joint body (1) is additionally provided with one group annular corrugated (4).

Plough groove type joint the most according to claim 1, it is characterised in that: described sealing ring is O shape rubber seal.

Plough groove type joint the most according to claim 1, it is characterised in that: described joint body (1) uses S30408 stainless steel material.

Plough groove type joint the most according to claim 6, it is characterised in that: described joint body (1) is one time punching molded.

Plough groove type joint the most according to claim 6, it is characterised in that: described joint body (1) inner side is additionally provided with phosphate coating.

Plough groove type joint the most according to claim 1, it is characterised in that: the wall thickness of described joint body (1) is 0.8-1.2mm.