KR101253742B1 - A joint pipe - Google Patents

Abstract

PURPOSE: A joint pipe is provided to make the strength of an insertion packing be higher than the strength of a pipe, thereby implementing firm fastening and water-tightness depending on the insertion of the insertion packing into the pipe with pressure. CONSTITUTION: A joint pipe includes a body(20), an insertion packing(30), a stopper(40), a pressurizing member(50), and a cap(60). The body includes a pipe insertion hole(21), a pipe stopper(22), a packing insertion part(23), and a cap coupling part(24). The ring-shaped insertion packing is placed in between a pipe and the packing insertion part, and the strength of the insertion packing is higher than the strength of the pipe. The stopper is placed on the outer circumference of the pipe and at the end of the packing insertion part. The outer diameter of the pressurizing member forms an inclining surface and is downscaled in one direction. The inner diameter of the pressurizing member is in contact with the pipe. An insertion hole(61) is formed on one side of the cap, and a screw part(62) is formed on the other side of the cap. The pipe is inserted into the insertion hole, and the screw part corresponds to the cap coupling part of the body. A pressurizing part(63) is formed in between the insertion hole and the screw part, and forms an inclining surface.

Description

Joint pipe {A JOINT PIPE}

The present invention relates to a joint pipe, and more specifically, to a joint pipe which prevents the pipe from being separated by structurally strong fastening, improves watertightness, and strengthens the antibacterial, flame retardant, and impact resistance in terms of material.

In general, PVC pipes used for pipe construction are produced and manufactured by an automatic process because of their good formability, and are usually cut to a predetermined length and supplied to the site. The common construction method of these pipes is to bury the pipes that are individually cut at the actual plumbing site in sequence, and connect each pipe to a pipe joint joint or a joint pipe to complete a continuous pipe as a whole. do.

There are many joint pipes (pipe joints) used for joint connection of pipes according to the prior art, and as an example, as disclosed in Korean Utility Model Registration No. 157456, a pipe insertion hole may be inserted to sandwich a pipe to be inserted. In order to provide a joint pipe which can be cut and pressurized to this joint, and to provide a joint pipe that can be easily assembled and replaced and easy to be replaced and maintained based on the pressure connection structure by simple screwing, Disclosed is a configuration of a joint pipe which has a diameter of an enemy to be inserted and forms a cut end at an end of a joint pipe having an airtight packing and presses the cut end to press or cut the pipe. have.

In addition, as an example, a socket part is integrally formed at one end of the second pipe so that one end of the first pipe is inserted into the socket part, and the outer circumferential edge of the first pipe is configured to fasten the first pipe and the second pipe. The clip portion is formed by a mounting portion surrounding the mounting portion and the flanges formed on both ends of the mounting portion and fastened to face each other, and the respective flanges are fastened by bolt coupling to face each other. In addition, each flange is formed to face the control projections to form a space between the flanges. The connecting rod of the arm is inserted into each through hole and hinged to the through hole formed in the flange by the formation of the space portion, and the arm is configured to be interlocked with the connecting rod as the shaft in the space portion. The arm is integrally formed with a straight rod to form a connecting rod in a right angle to fasten both ends of the connecting rod into the through hole, and the straight rod has a hook in a direction opposite to the connecting rod. The hook is proposed a technique for engaging the engaging projection formed in the fixing portion to be described below.

Although these various joint tubes have been proposed, there is a problem that the joint tubes do not hold the pipes firmly when the tension is applied in the direction in which the pipes are separated from the joint pipes after construction. There is a problem that the pressure is weakened and water leakage eventually occurs.

Meanwhile, polyvinyl chloride resin is widely used in various fields because of its excellent physical and chemical properties compared to the low price, but it is vulnerable to heat resistance, tensile strength and impact resistance, and is discolored with heat deformation or time. To compensate for this, additives such as heat stabilizers, processing aids, UV inhibitors, impact modifiers and fillers are used.

For example, the Republic of Korea Patent Publication No. 2010-0012480 relates to polyvinyl chloride pipes and pipe fittings mainly used as water pipes or sewage pipes, 5 to 45 parts by weight of ocher, hard coal (CaCo3) based on 100 parts by weight of polyvinyl chloride resin Polyvinyl chloride resin composition containing 8 to 25 parts by weight, 2 to 3 parts by weight of a composite stabilizer, and 6 to 8 parts by weight of an impact modifier is proposed. Although it can provide, in the present technology there is a problem that the adhesion strength between the polyvinyl chloride resin and the ocher as a heterogeneous material is reduced by the addition of ocher, the strength is lowered.

On the other hand, bacteria propagation and odor problems occur not only in sewer pipes and water pipes but also in joint pipes. In the past, metal pipes such as cast iron pipes or zinc pipes are easily corroded due to dissolved oxygen. There was a problem that the old rust mixed with water to generate an enemy or white contaminants. Due to these problems, polyethylene (PE) tubes are proposed, which show excellent properties in terms of durability and chemical resistance, but harmful microorganisms such as Escherichia coli propagate when water is flowed at a low speed or prolonged stay inside. Plastic odor was a serious problem. In addition, in the case of polyvinyl chloride (PVC) pipe, the static electricity is generated on the surface of the pipe due to friction with the inside of the pipe, which causes a problem that foreign substances contained in the water are adsorbed on the inner wall of the pipe. Therefore, in the conventional synthetic resin tube, a technique for improving antimicrobial properties by combining propylene ethylene copolymerized resin, zinc, calcium triphosphate, hydroxyapatite, calcium hydrogen phosphate, and the like is proposed, but the chemical for antimicrobial chemicals through secondary chemical reaction There was a problem of lowering mechanical properties or causing secondary contamination.

On the other hand, in the conventional sewage pipes, water pipes, etc. in order to secure flame retardant in order to secure a flame retardant, a number of techniques are proposed, but halogen-based flame retardant as a flame retardant has a problem that a halogen-based compound that adversely affects the environment is generated, trioxide It is pointed out that antimony is not suitable for the environment, and there is no environmental problem in the case of metal hydroxide, but there is a problem of deterioration in durability due to excessive use of additives because a large amount of metal hydroxide must be added to exhibit flame retardancy. .

Patent Publication 2010-0012480 Utility Model Registration 157456

The present invention is to solve the problems of the prior art as described above to prevent the separation of the pipe by a structurally rigid fastening, to improve the watertightness, and to provide a joint pipe reinforced material antibacterial, flame retardant, impact resistance To do so.

The joint pipe of the present invention, in the joint pipe interconnecting both ends of the pipe, the pipe insertion holes on both sides to be inserted with an inner diameter corresponding to the outer diameter of the pipe, and the inner diameter at the inner end of the pipe insertion hole is stepped A body consisting of a pipe stopper which is reduced in size, a packing insertion part forming an inclined surface at an inner end of the pipe insertion hole, and a cap coupling part having threads formed at outer ends of both ends; An insertion packing made of a material having a strength higher than that of the pipe in a ring shape formed in the pipe and the packing insertion part; A ring-shaped stopper configured at an end of the packing insertion portion at an outer circumference of the pipe; The outer diameter forms an inclined surface in one direction and the inner diameter is a pressure member in contact with the pipe; One side inner diameter is formed with an insertion hole corresponding to the outer diameter of the pipe is inserted into the pipe and the other side is provided with a screw portion corresponding to the cap coupling portion of the body, the pressing hole is formed between the insertion hole and the screw portion to form an inclined surface Cap; characterized in that composed of.

Here, the insertion packing is characterized in that the insertion end is formed projecting on the portion in contact with the pipe, more preferably, the insertion packing is a rotary edge forming an inclined surface on the surface in contact with the stopper, the insertion end is It is characterized in that the inclination gradient is formed in the opposite direction to the rotary border.

Meanwhile, in the present invention, the cap and the body, with respect to 100 parts by weight of polyethylene or polypropylene copolymer resin, 2 to 4 parts by weight of stabilizer, 15 to 25 parts by weight of ocher powder, 6 to 10 parts by weight of impact modifier, flame retardant 5 To 15 parts by weight, characterized in that consisting of a composition comprising 3 to 6 parts by weight of the antimicrobial agent.

As another example, a plurality of sound absorbing holes may be formed in the body in the circumferential direction. More preferably, the sound absorbing holes include a porous filler, and the porous filler contains 100 parts by weight of waste glass powder, calcium carbonate from 5 to 5. 15 parts by weight, 50 to 80 parts by weight of sodium silicate, and 50 to 150 parts by weight of pine powder is characterized in that it is configured.

According to the present invention, the following effects can be expected.

First, the joint pipe according to the present invention has a merit that a tight fastening and a complete watertightness can be achieved by inserting the packing into the pipe when the pipe is fastened with the pipe.

Second, the joint pipe according to the present invention has an excellent antibacterial action by the combination of loess, etc., environmentally friendly to the outer periphery, has the advantage of excellent flame retardant action by suppressing the generation of harmful gases.

1 is an exploded cross-sectional view of a joint pipe according to the present invention.
Figure 2 is a cross-sectional view of the joint of the joint according to the present invention.
Figure 3 is an operating state of the pipe according to the present invention.
4 is a cross-sectional view showing another embodiment of a joint pipe according to the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The present invention relates to a joint pipe for interconnecting both ends of the pipe (1) as shown in Figures 1 and 2, the body 20, the insertion packing 30, the stopper 40, the pressing member 50 And a cap 60, which is inserted by the pressing member 50 and the stopper 40 by rotating the cap 60 after the pipe 1 is inserted into the body 20. ) Is pressurized, in particular, the strength of the insertion packing 30 is configured to be greater than the strength of the pipe (1) to ensure that the insertion packing 30 is inserted into the pipe (1) by the tight tightening and It is to enable watertightness.

First, the body 20 has a pipe insertion hole 21 on both sides to be inserted with an inner diameter corresponding to the outer diameter of the pipe 1, and the inner diameter of the pipe insertion hole 21 is reduced in size. It consists of a pipe stopper 22, a packing inserting portion 23 which forms an inclined surface at the inner end of the pipe inserting hole 21, and a cap engaging portion 24 having threads formed at outer diameters of both ends. Here, the packing inserting portion 23 is configured such that the pressing jaw 23-1 is further configured on the inclined surface, so that the insertion end 31 is inserted into the outer circumference of the pipe 1 in the inserting packing 30 to be described below. It is desirable to make this easy.

The insertion packing 30 is a ring shape formed between the pipe 1 and the packing insertion part 23 is characterized in that the material of a higher strength than the strength of the pipe (1). That is, the insertion packing 30 is to be inserted into the insertion end 31 to the pipe (1) made of a plastic material by using a stainless material or the like.

The insertion packing 30 is configured between the pipe 1 and the packing inserting portion 23 as shown in Figures 1 and 2 is the pressing portion 50 by the rotational fastening of the cap 60 The stopper 40 is pressed, and the stopper 40 presses the insertion packing 30 and at the same time, the insertion packing 30 is connected to the insertion packing 30 based on the shape of the packing insertion part 23. The force for pressing the outer circumference is transmitted, and the insertion end 31 of the insertion packing 30 is forcedly inserted into the pipe 1 by this force. As the insertion packing 30 is inserted into the circumference of the pipe 1, the pipe 1 is fastened to the joint pipe of the present invention, thereby enabling a firm fastening and watertightness.

To this end, as shown in FIG. 3, the insertion packing 30 has a rotary edge that protrudes from the insertion end 31 in contact with the pipe 1 and forms an inclined surface on the surface where the stopper 40 comes into contact. 32 is configured, and the insertion end 31 is preferably configured such that an inclined gradient is formed in the opposite direction to the rotary edge.

That is, before the cap 60 is completely fastened, the insertion packing 30 is formed on the outer periphery of the pipe 1 and the packing inserting part 23 while the side of the insertion end 31 and the outer periphery of the pipe 1 are in contact with each other. And it is configured to be mounted between the stopper 40, when the pressing force is transmitted to the stopper 40 due to the rotation of the cap 60 is the stopper 40 is to press the rotary rim 32 On the basis of the shape of the rotary rim 32, the insertion packing 30 is pressed while the rotation force is generated. By this pressing and rotational force, the insertion end 31 is eventually inserted into the outer circumference of the pipe 1. As the insertion end 31 forming the inclined gradient is inserted into the outer periphery of the pipe 1, the pipe 1 becomes more resistant in a direction from which the pipe 1 is separated, thereby enabling a secure fastening.

The stopper 40 is formed at the end of the packing inserting portion 23 at the outer circumference of the pipe 1 in a ring shape. In addition to the function of transmitting the pressing force of the pressing portion 40 to the insertion packing 30 and at the same time the control jaw (not shown in the figure) is applied to the end of the packing inserting portion 23 is further inserted into the packing Digging into the part 23 to prevent the body 20 from lifting.

The pressing member 50 is a ring-shaped member whose outer diameter forms an inclined surface in one direction and the inner diameter thereof is in contact with the pipe, and the pressing member 50 is connected to the pipe (based on the rotation of the cap 60). In the outer periphery of 1), the pressing member 50 presses the stopper 40 based on this action.

The cap 60 has an insertion hole 61 corresponding to the outer diameter of the pipe 1 formed at one inner diameter thereof so that the pipe is inserted, and the screw portion corresponding to the cap coupling part 24 of the body 2 is formed at the other side. (62), a pressing portion (63) for forming an inclined surface is formed between the insertion hole (61) and the screw portion (62). The pressing portion 63 may be in contact with the outer circumference of the pressing member 50 so that the pressing portion 63 may press or release the pressing member 50 based on the rotation of the cap 60.

Meanwhile, in the present invention, the body 20 and the cap 60 are based on 100 parts by weight of polyethylene or polypropylene copolymer resin, 2 to 4 parts by weight of stabilizer, 15 to 25 parts by weight of ocher powder, and 6 to 10 impact modifiers. It is characterized by consisting of a composition comprising parts by weight, 5 to 15 parts by weight of flame retardant, 3 to 6 parts by weight of antibacterial agent.

Wherein the body 20 and the cap 60 of the present invention is a polyethylene or polypropylene copolymer resin is used, when using a polyethylene copolymer resin is improved environmental resistance, polypropylene copolymer resin is used If so, the impact resistance is improved. Thus, the body 20 and the cap 60 of the present invention is to be able to improve the environmental resistance or impact resistance by selectively using polyethylene or polypropylene copolymer resin.

Tin stabilizer, calcium zinc may be used as the stabilizer, it is preferable to be blended with 2 to 4 parts by weight of the stabilizer, such a stabilizer serves to prevent the carbonization of the resin by the heat applied for processing, the compounding ratio of 2 When used in parts by weight, the effect is insignificant. When it is used in an amount of more than 4 parts by weight, the impact strength is lowered and there is a problem of an increase in production cost. These stabilizers are used with 1 to 3 parts by weight of lubricant and the lubricant may be used such as SW58.

In particular, the composition is characterized in that by adding ocher powder, the molded article using the composition is excellent in the environment and excellent antibacterial action. The loess has a large amount of calcium carbonate (CaCo3), and has an adhesive force not easily broken by the calcium carbonate. The loess is composed of silica (SIO2), alumina (Al2O3), iron, magnesium (Mg), etc., composed of such a component ratio and various enzymes to emit a large amount of far infrared rays necessary for the growth of plants and plants. In addition, the ocher is a honeycomb structure with a large surface, and a large number of spaces have a multi-layered structure. In this sponge-like hole, far infrared rays are absorbed and stored, and are radiated when heated to stimulate molecular activity of other objects. In addition, various microorganisms live in the loess, causing various enzymes to circulate. The enzyme components of the loess include four kinds of catalase, diphenol oxidase, saccharase, and protease. It acts as a purifying agent. Therefore, the addition of ocher powder having such a function is limited to the mixture ratio of 15 to 25 parts by weight of ocher powder, which can not be expected when the ocher powder is blended with less than 15, antimicrobial inherent antibacterial activity, exceeding 25 parts by weight In this case, a problem in strength may occur due to a decrease in adhesion strength of a foreign material such as resin, so limited.

MBS (Methyl Methacrylate-Butadiene Styrene) may be used as the impact modifier, and may be used in combination with other impact modifiers, and the compounding ratio is limited to 6 to 10 parts by weight.

It is reasonable that the flame retardant is one or a mixture of melamine polyphosphate, silica and activated carbon. The use of melamine polyphosphate is to solve the problem of environmental load, in particular, due to the use of silica, activated carbon, as well as environmental problems to be able to adsorb harmful gases in the event of fire due to the porous material.

The particle diameter of the melamine polyphosphate may be preferably selected from the average particle diameter of 5 to 60 ㎛. If the average particle diameter of the melamine polyphosphate is included less than 5 μm, the expected effect is insignificant, and if it exceeds 60 μm, the dispersibility is lowered and thus limited.

In addition, since the flame retardant may be mixed with silica and activated carbon, the silica or activated carbon may be included, thereby reducing the amount of gas such as carbon monoxide, carbon dioxide, etc. generated during combustion by using gas adsorption. It is reasonable to limit the blending ratio to 5 to 15 parts by weight so that the flame retardant exerts a flame retardant function but does not affect other physical properties of other compositions.

3 to 6 parts by weight of the antimicrobial agent is further blended, and it is reasonable to use zinc sulfide (ZnS) as the antimicrobial agent. The zinc sulfide is easily dispersed in the composition as an inorganic filler, thereby enabling uniform distribution. The zinc sulfide is brought into contact with an environment containing bacteria and fungi by a uniform distribution, so that antifungal and antibacterial activity is sustained for a longer period of time. It is possible to be. Zinc sulfide also has the advantage of withstanding its molding temperature in the manufacture of molded articles. Thus, zinc sulfide is not denatured or modified at this temperature. Moreover, zinc sulfide is inert and does not react with the polymer matrix that the composition forms, thus deteriorating, coloring or sulfiding in molded articles, unlike conventional antibacterial agents such as zinc oxide (ZnO) or silver (Ag), for example. Does not cause problems. As such an antimicrobial agent, zinc sulfide is limited to the blending ratio of 3 to 6 parts by weight to limit the blending in consideration of the antibacterial effect and material cost. In addition, vegetable antibacterial agents may be used as the antimicrobial agent. Although relatively expensive, the antimicrobial activity is excellent and environmentally friendly advantages.

On the other hand, the present invention provides an embodiment in which a plurality of sound absorbing holes 25 are formed in the circumferential direction of the body 20 as shown in FIG. That is, by forming a plurality of sound absorbing holes 25 in the circumferential direction inside the body 20 to prevent the noise caused by the fluid flowing in the pipe (1) inside the body 20 to flow out to the outside. . The sound absorbing hole 25 may be formed in various ways, and may be formed by punching, etc., constituting the body 20, the body 20 itself by a spiral winding profile formed by forming a hollow It can be configured to be formed. More preferably, the sound absorbing hole comprises a porous filler, wherein the porous filler comprises 100 parts by weight of waste glass powder, 5 to 15 parts by weight of calcium carbonate, 50 to 80 parts by weight of sodium silicate, and 50 to 150 parts by weight of pine powder. Characterized in that configured. Wherein the calcium carbonate is to function as a foaming agent, soda silicate to function as a molding aid, the cluster powder is a porous material to the material itself such that the porous filler is expressed in the sound absorbing hole (25) It acts as a binder. When the porous filler is filled in the sound absorbing hole 25, the voids have a porosity of 5 to 10% of the total volume. Such a porous filler is filled in the sound absorbing hole 25, thereby increasing the strength of the body 20. It is a reinforcing function in the aspect, and the sound absorbing function is maintained due to the porous material, and in the event of a fire, the porous filler can prevent the external leakage by adsorbing toxic gases. Such porous fillers are foamed while forming bubbles by decomposing carbon dioxide and crystalline water components contained in the blowing agent in a state in which the waste glass is softened to a liquid level by heat. Therefore, the higher the weight ratio of the waste glass powder, the higher the weight ratio of calcium carbonate, the more foaming occurs, the specific gravity is lowered and the sound absorption is improved while the strength is lowered. Therefore, in order to ensure sound absorption while maintaining a certain strength inside the sound absorbing hole, the waste glass powder and calcium carbonate are limited to the mixing ratio as described above.

1: Piping 20: Body
30: insert packing 40: stopper
50: pressure member 60: cap

Claims (7)

In the joint pipe interconnecting both ends of the pipe,
Pipe inserting holes on both sides to be inserted with an inner diameter corresponding to the outer diameter of the pipe, a pipe stopper whose inner diameter is reduced at a step in the inner end of the pipe inserting hole, and a packing inserting part forming a slope at the inner end of the pipe inserting hole. And, the body consisting of a cap coupling portion is formed with a screw thread on the outer diameter of both ends;
A packing formed of a material having a strength higher than that of the pipe in a ring shape formed in the pipe and the packing insertion part;
A ring-shaped stopper configured at an end of the packing insertion portion at an outer circumference of the pipe;
The outer diameter is inclined to form a slope in one direction and the inner diameter is a pressing member in contact with the pipe;
One side inner diameter is formed with an insertion hole corresponding to the outer diameter of the pipe is inserted into the pipe and the other side is provided with a screw portion corresponding to the cap coupling portion of the body, the pressing hole is formed between the insertion hole and the screw portion to form an inclined surface Cap;
The body has a plurality of sound absorbing holes are formed in the circumferential direction,
The sound absorbing hole is composed of a porous filler,
The porous filler is a joint pipe, characterized in that comprises 100 parts by weight of waste glass powder, 5 to 15 parts by weight of calcium carbonate, 50 to 80 parts by weight of sodium silicate, 50 to 150 parts by weight of pine powder.
delete delete The method of claim 1,
The cap and the body,
To 100 parts by weight of polyethylene or polypropylene copolymer resin, 2 to 4 parts by weight of stabilizer, 15 to 25 parts by weight of ocher powder, 6 to 10 parts by weight of impact modifier, 5 to 15 parts by weight of flame retardant, 3 to 6 parts by weight of antibacterial agent Fitting pipe, characterized in that configured by the composition.
5. The method of claim 4,
And the flame retardant is one or a mixture of melamine polyphosphate, silica and activated carbon.
delete delete

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