KR101209591B1 - Joint multipurpose clamp - Google Patents

Abstract

PURPOSE: A joining tool for multiple purposes is provided to stably support first and second joints by preventing the first and second joints from rotating when first or second shafts are fitted into first and second joint support grooves. CONSTITUTION: A joining tool for multiple purposes comprises a hollow joint coupler(10), a first joint(20), a second joint(30), and an elastic support unit. One end of the first joint is connected to one end of the joint coupler to be rotated at 360 degrees from a flat section view. One end of the second joint is connected to the other end of the joint coupler to be rotated at 360 degrees from the flat section view. Male threads or female threads are connected to the other end of the first and second joints, respectively. The elastic support unit is embedded in the joint coupler, and elastically supports the corresponding ends of the first and second joints.

Description

Joint multipurpose clamp

The present invention relates to an articulated multipurpose fastener, and more particularly, it is possible to bend the joints freely 360 °, the bent state of the joints is stably supported, the first bend portion and the second bent portion of the joint joint first ball portion And not only smoothly bent around the second ball part, but also to the articulated multipurpose fastener that the balls of the joints are stably coupled without departing from the first bent part and the second bent part of the joint.

In general, articulated fasteners are used to join a particular part to a wall, ceiling, or other article, or to adjust the angle of the part after joining.

The articulated fastener is composed of a plurality of joints and hinges connecting the joints to adjust the installation angle by bending the joints around the hinge.

However, these conventional articulated fasteners are not free to bend the joints and are limited to only one direction, so there is a problem in that the installation parts cannot be adjusted at various angles.

In addition, when using the conventional articulated fasteners, the joints of the joints are loosened, and problems such as inability to maintain the angle set by the self-weight of the joints or the self-weight of parts installed in the joints have occurred.

SUMMARY OF THE INVENTION An object of the present invention for solving the above problems is to provide an articulated multipurpose fastener that can bend freely joints 360 °.

It is another object of the present invention to provide an articulated multipurpose fastener that allows the joints to be stably supported.

Still another object of the present invention is to provide an articulated multipurpose fastener that allows the first bent portion and the second bent portion of the joint joint to bend smoothly around the first ball portion and the second ball portion.

Still another object of the present invention is to provide an articulated multipurpose fastener that allows the balls of joints to stably engage without being separated from the first bent portion and the second bent portion of the joint.

Still another object of the present invention is to provide an articulated multipurpose fastener that allows easy angle adjustment of joints and maintains an angle adjusted state.

Articulated multipurpose fastener of the present invention for achieving the above object, the hollow joint joint; A first joint having one end coupled to one end of the joint joint and having a male or female screw coupled to the other end thereof so as to be rotated 360 ° when viewed based on a planar section of the joint joint; A second joint having one end coupled to the other end of the joint joint and having a male or female screw coupled to the other end thereof so as to be rotated 360 ° when viewed based on a flat cross section of the joint joint; It is characterized in that the elastic support is built in the joint joint and elastically supporting the corresponding ends of the first joint and the second joint in the outward direction of the joint joint.

Another feature of the articulated multipurpose fastener of the present invention, the joint joint is formed with a coupling hole of the form penetrated in the longitudinal direction therein, both ends are formed with the first bending portion and the second bending portion for supporting the joint, The first bent groove and the second bent groove are formed in the circumference of the first bent part and the second bent part along the circumference of the first bent part and the second bent part so as to be bent evenly when the first bent part and the second bent part are folded. Two bending grooves are formed.

Another feature of the articulated multipurpose fastener of the present invention, both ends of the joint joint, the first joint and the second joint is formed with a first joint support groove and a second joint support groove such that they are bent at a right angle to the joint joint. The first joint support groove and the second joint support groove are formed in the same direction when viewed based on the cross section of the joint joint.

Another feature of the articulated multipurpose fastener of the present invention, both ends of the joint joint, the first joint and the second joint is formed with a first joint support groove and a second joint support groove such that they are bent at a right angle to the joint joint. The first joint support groove and the second joint support groove are formed to be perpendicular to each other when viewed based on the cross section of the joint joint.

Another feature of the articulated multipurpose fastener of the present invention, both ends of the joint joint, the first joint and the second joint is formed with a first joint support groove and a second joint support groove such that they are bent at a right angle to the joint joint. The first joint support groove and the second joint support groove are formed in opposite directions with respect to the cross section of the joint joint.

Another feature of the articulated multipurpose fastener of the present invention, the joint joint is made of spheroidal graphite cast iron, heated to 1520 ~ 1580 ℃ to produce a molten metal, desulfurization treatment, magnesium 0.3 ~ 0.7% Put the spheroidizing treatment agent included to about degree and performs the spheroidizing treatment at 1455 ~ 1495 ℃ and heat treatment.

Another feature of the articulated multipurpose fastener of the present invention is that around the joint joint, the coating layer is coated, chromium oxide (Cr ₂ O ₃ ) 88 ~ 92% and aluminum oxide (Al ₂ O ₃ ) 8-12% The powder formed by mixing is provided to have a particle size of 10 ~ 44㎛ coated on the circumference of the joint joint, this coating layer is made of a thickness of 50 ~ 600㎛ around the first bent portion and the second bent portion, the hardness is 900 ~ 1000HV, surface roughness is plasma coated to maintain 0.1 ~ 0.3㎛.

Another feature of the articulated multipurpose fastener of the present invention is that the first joint and the second joint have a first ball portion and a second ball portion formed in a spherical shape at one end thereof, and the first female screw part is fastened to the male screw part at the other end thereof. And a second female thread portion, wherein a first shaft and a second shaft having a thickness smaller than the diameter of the first ball portion and the second ball portion are integrally formed between the first ball portion, the second ball portion, the first female thread portion, and the second female thread portion. Is connected.

Another feature of the articulated multipurpose fastener of the present invention is that the first and second wavefronts of the plane are formed on both sides of the first female screw portion and both sides of the second female screw portion.

Still another feature of the articulated multipurpose fastener of the present invention is that the first fastening screw or the second female screw portion is coupled with an auxiliary fastening screw consisting of a bolt head and a male screw portion, and the bolt head has a first female screw portion or a second female screw. The auxiliary male screw part is formed to be fastened to the part.

Another feature of the articulated multipurpose fastener of the present invention is that the first joint or the second joint has a spherical ball portion formed at one end thereof, and a male screw portion formed at the other end thereof so as to be fastened to a female screw portion. Between the shaft is made of an auxiliary joint that is integrally connected to the shaft of a thickness smaller than the diameter.

Another feature of the articulated multipurpose fastener of the present invention is that the elastic support portion elastically supports the first ball portion of the first joint and the second ball portion of the second joint to the outside so that the outer peripheral surfaces of the first ball portion and the second ball portion A spring for allowing the inner circumferential surfaces of the first bent portion and the second bent portion to come into close contact with each other, and a first ball support portion and a second ball support portion respectively coupled to both ends of the spring and supported by the first ball portion and the second ball portion; The first ball support part and the second ball support part are respectively inserted into both ends of the spring to be integrated with the first spring coupling part and the second spring coupling part for supporting both ends of the spring, and the first spring coupling part and the second spring coupling part. And a first ball ground surface and a second ball ground surface which are formed in contact with the first ball portion and the second ball portion to be point-contacted so as to reduce the frictional resistance between the first ball portion and the second ball portion.

The present invention as described above, the first joint is coupled so that the first ball portion is rotated 360 ° to one end of the joint and the joint, and the second joint is coupled to rotate the second ball portion 360 ° to the other end of the joint Is made of. Therefore, since the first joint and the second joint are coupled to rotate 360 ° with respect to the joint, the angle of the joints can be freely adjusted, and thus the setting position of the parts installed in the joints can be smoothly adjusted.

In the articulated multipurpose fastener of the present invention, when the first joint or the second joint is bent with respect to the joint, the first axis of the first joint or the second axis of the second joint is the first joint supporting groove or the second joint of the joint. It is inserted into the support groove. Therefore, when the first shaft or the second shaft is fitted into the first joint support groove or the second joint support groove, the first joint or the second joint is prevented from rotating about the joint joint, and thus the first joint in the bent state And the second joint is stably supported.

The joint joint of the present invention, the first bent portion and the second bent portion for supporting the joint is formed at both ends, the circumference when the first bent portion and the second bent portion is folded around the first bent portion and the second bent portion A ring-shaped first bent groove and a second bent groove are formed along the circumference of the first bent portion and the second bent portion so as to be uniformly bent. Therefore, when the first ball portion and the second ball portion of the second joint are inserted at both ends of the joint joint, and the first bent portion and the second bent portion are bent, the first bent groove and the second bent groove thinner than the other portions Because of this bending, the first bent portion and the second bent portion of the joint joint are bent in a uniform shape around the first ball portion and the second ball portion.

Joint joint of the present invention is made of spheroidal graphite cast iron, heated to 1520 ~ 1580 ℃ spheroidal cast iron to make a molten and then desulfurization treatment, containing the spheroidizing treatment containing 0.3 ~ 0.7% magnesium 1455-1495 It is made by heat treatment after the spheroidizing treatment at ℃. Therefore, since the spherical graphite cast iron has a small notch effect, the stress concentration phenomenon is reduced and the strength and toughness are greatly improved, and thus the first bent portion and the second bent portion are not damaged.

In the circumference of the joint joint of the present invention, a powder formed by mixing chromium oxide (Cr ₂ O ₃ ) 88 to 92% and aluminum oxide (Al ₂ O ₃ ) 8 to 12% has a powder particle size of 10 to 44 μm. It is then coated around the joint. Therefore, since the coating layer having excellent oxidation resistance and hardness is formed at the bent portion of the joint joint, the joint joint is prevented from being oxidized or damaged, and thus the first ball portion and the second ball portion are separated from the first bent portion and the second bent portion. It is not supported but is stably supported.

An auxiliary fastening screw composed of a bolt head portion and a male thread portion is coupled to the first female screw portion or the second female screw portion of the present invention, and the bolt head portion has an auxiliary male screw portion formed to be fastened to the first female screw portion or the second female screw portion. . Therefore, after fixing the auxiliary male screw portion to the wall, ceiling, or product, the first female screw portion of the first joint or the second female screw portion of the second joint may be coupled to the auxiliary male screw portion of the bolt head. Therefore, the articulated multipurpose fastener of the present invention can be easily fixed in various places and positions.

The articulated multipurpose fastener of the present invention is elastically supported by a spring in a state where the first ball portion, the second ball portion, the first ball support portion, and the second ball support portion are in point contact. Therefore, since the first ball part, the second ball part and the first ball support part, and the second ball support part are in point contact, the frictional resistance between them is minimized, thus making it easy to freely bend the first and second joints to the joint joint. . In addition, when the angle of the first and second joints is adjusted by the spring elasticity, the angle-adjusted state is set as it is without a separate tool.

1 is a perspective view showing an embodiment of the articulated multipurpose fastener of the present invention
Fig. 2 is an exploded perspective view of Fig.
Figure 3 is a cross-
4 is a perspective view showing a state in which the first and second joints are bent at 90 ° in the same direction with respect to the joint
5 is a perspective view showing a state in which the first joint support groove and the second joint support groove are staggered in a 90 ° direction at both ends of the joint joint;
6 is a perspective view illustrating a state in which the first and second joints are bent along the first and second joint supporting grooves of FIG. 5;
7 is a perspective view showing a state in which the first joint support groove and the second joint support groove are staggered in a 180 ° direction at both ends of the joint joint;
8 is a perspective view illustrating a state in which the first and second joints are bent along the first and second joint supporting grooves of FIG. 7;
9 is a partially separated perspective view illustrating a state in which an auxiliary fastening screw is coupled to a second joint;
Figure 10 is a side view showing a state installed on the wall using the auxiliary fastening screws
Figure 11 is a side view showing a state installed on the ceiling using the auxiliary fastening screws
12 is a perspective view showing a state in which the secondary joint is coupled to one end of the joint
Figure 13 is a side view showing a state in which two articulated multipurpose fasteners of the present invention are connected

Specific features and advantages of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.

1 is a perspective view showing an embodiment of the articulated multipurpose fastener of the present invention, Figure 2 is an exploded perspective view of Figure 1, Figure 3 is a cross-sectional view of Figure 1, Figure 4 is a first joint and a second joint It is a perspective view showing the state which bent 90 degrees in the same direction with respect to a joint joint.

The articulated multipurpose fastener according to the present invention includes a hollow articulation joint 10, a first joint 20, a second joint 30, and an elastic support 40.

The joint fitting 10 has a coupling hole 11 having a shape penetrating in the longitudinal direction therein, and the first bending portion 14 and the second bending portion 15 for supporting the joint are formed at both ends thereof. . The circumference of the first bent part 14 and the second bent part 15 of the joint joint 10 may be uniformly bent when the first bent part 14 and the second bent part 15 are closed. A ring-shaped first bent groove 16 and a second bent groove 17 are formed along the circumferences of the first bent portion 14 and the second bent portion 15.

At both ends of the joint 10, the first joint 20 and the second joint 30 are bent at right angles to the joint 10, the first joint support groove 12 and the second joint support groove 13 ) Is formed, the first joint support groove 12 and the second joint support groove 13 are formed in the same direction when viewed based on the cross section of the joint 10.

Joint joint (10) is made of spheroidal graphite cast iron, heated to 1520 ~ 1580 ℃ spheroidal cast iron to make a molten and desulfurization treatment, and contains a spheroidizing treatment containing 0.3 ~ 0.7% magnesium 1455-1495 It is made by heat treatment after the spheroidizing treatment at ℃.

Spheroidal graphite cast iron is cast iron in which graphite is spherically crystallized in the solidification process by adding magnesium or the like to molten gray cast iron, and thus graphite is spherical in shape. Since the spherical graphite cast iron has a small notch effect, the stress concentration phenomenon is reduced and the strength and toughness are greatly improved.

In this case, when the spheroidal graphite iron is heated to less than 1520 ° C., the entire structure cannot be sufficiently melted, and if it is heated above 1580 ° C., energy is unnecessarily wasted. Therefore, it is preferable to heat the nodular cast iron to 1520-1580 ° C.

In the molten nodular cast iron, a spheroidizing agent containing about 0.3% to 0.7% of magnesium is added. When the magnesium content is less than 0.3%, the spheroidizing agent becomes very insignificant. On the other hand, there is a problem that expensive material costs are increased. Therefore, magnesium mixing ratio of spheroidizing agent is about 0.3 ~ 0.7%.

When spheroidizing agent is added to molten nodular cast iron, it is spheroidized at 1455 ~ 1495 ℃. If the spheroidization treatment temperature is less than 1455 ° C., the spheroidization treatment is not performed properly. If the spheroidization treatment temperature is higher than 1495 ° C., the spheroidization treatment effect is not greatly improved, but energy is unnecessarily wasted. Therefore, the spheroidization treatment temperature is 1455-1495 ℃.

Meanwhile, the joint fitting 10 may be made of stainless material, and the first bent part 14 and the second bent part 15 which are in continuous contact with the first ball part 21 and the second ball part 31 are heat treated. Can be.

A coating layer may be formed around the elastic support part 40 of the present invention. The reason why the ceramic coating is applied to the elastic support 40 is to prevent corrosion. Ceramic coatings are more resistant to corrosion, scratch, abrasion, impact and durability than chromium or nickel chromium plating.

The coating layer is provided with a powder particle size of 10 to 44 μm of a powder obtained by mixing 88 to 92% of chromium oxide (Cr ₂ O ₃ ) and 8 to 12% of aluminum oxide (Al ₂ O ₃ ) to form a joint joint. ) Is coated around the first bent portion and the second bent portion has a thickness of 50 ~ 600㎛, the plasma coating to maintain the hardness of 900 ~ 1000HV, surface roughness 0.1 ~ 0.3㎛ .

Chromium oxide (Cr ₂ O ₃ ) serves to prevent rust by acting as a passivity layer that blocks oxygen invading into the metal.

When the aluminum oxide (Al ₂ O ₃ ) is formed as a coating layer around the elastic support 40, the coating is even and there is no gap, so that the circumference of the elastic support 40 is reliably protected. The melting point of the aluminum oxide (Al ₂ O ₃ ) is very high to 2050 ℃ to protect the elastic support 40 at a high temperature, there is a great effect on the oxidation prevention. Therefore, aluminum oxide (Al ₂ O ₃ ) coated on the elastic support 40 blocks sea water or air from contacting the circumference of the elastic support 40 to prevent the elastic support 40 from being oxidized.

Here, when chromium oxide (Cr ₂ O ₃ ) and aluminum oxide (Al ₂ O ₃ ) are mixed and used, these mixing ratios are 88 to 92% of chromium oxide (Cr ₂ O ₃ ) and aluminum oxide (Al ₂ O ₃ ). ₃ ) 8 to 12% is preferably mixed.

When the mixing ratio of chromium oxide (Cr ₂ O ₃ ) is less than 88 ~ 92%, the coating of chromium oxide (Cr ₂ O ₃ ) is often broken in an environment such as high temperature, so that the elastic support portion 40 ), The rust protection effect of the abruptly decreased.

When the mixing ratio of aluminum oxide (Al ₂ O ₃ ) is less than 8 to 12%, the effect of aluminum oxide (Al ₂ O ₃ ) was so small that the purpose of mixing it with chromium oxide (Cr ₂ O ₃ ) is faded. . That is, aluminum oxide (Al ₂ O ₃ ) prevents the sea water or air from contacting the circumference of the elastic support 40 to prevent the elastic support 40 from being oxidized, and the mixing ratio is less than 2 to 4%. In this case, there is a problem to reliably block sea water or air from contacting the circumference of the elastic support 40.

Here, a powder obtained by mixing 88 to 92% of chromium oxide (Cr ₂ O ₃ ) and 8 to 12% of aluminum oxide (Al ₂ O ₃ ) is provided to have a powder particle size of 10 to 44 μm. If the powder particle size exceeds 10 ~ 44㎛, there is a problem that the coating is not made smoothly, if the powder particle size is less than 10 ~ 44㎛, it is difficult to prepare by providing a fine powder.

The coating layer made of these materials is made of a thickness of 50 ~ 600㎛ circumference of the elastic support 40, the hardness is 900 ~ 1000HV, the surface roughness is plasma coating to maintain 0.1 ~ 0.3㎛.

The coating layer is formed by spraying the powdered powder and the gas at 1400 ° C. at a speed of about 2 Mach at a speed of about 400 μm by jet spraying around the elastic support 40.

When the thickness of the coating layer is less than 50 탆, the effect of the above-described ceramic coating layer can not be guaranteed. When the thickness of the coating layer exceeds 600 탆, the above-mentioned effect is insignificant. On the other hand, Is wasted.

While the coating layer is coated on the elastic support 40, the temperature of the elastic support 40 is raised. The elastic support 40 is cooled by a cooling device (not shown) to prevent deformation of the heated elastic support 40. A temperature of ˜200 ° C. is maintained.

A sealing material made of chromic anhydride (CrO ₃ ) made of a metallic glass quartz system may be coated around the coating layer. Anhydrous chromic acid is applied as an inorganic sealing material around a coating layer made of chromium nickel powder.

Anhydrous chromic acid (CrO ₃ ) is used in places that require high abrasion resistance, lubricity, heat resistance, corrosion resistance and releasability, is not discolored in the atmosphere, has high durability, and has good abrasion resistance and corrosion resistance. As for the coating thickness of a sealing material, about 0.3-0.5 micrometer is preferable. If the coating thickness of the sealing material is less than 0.3 占 퐉, the sealing material easily peels off even in a slight scratch groove, so that the above-mentioned effect can not be obtained. If the coating thickness of the sealing material is made thick enough to exceed 0.5 탆, pin holes, cracks, and the like will increase on the plated surface. Therefore, the coating thickness of the sealing material is preferably about 0.3 ~ 0.5㎛.

Therefore, since the coating layer having excellent oxidation resistance is formed around the elastic support part 40 frequently exposed to the outside, the elastic support part 40 is prevented from being oxidized and the life of the elastic support part 40 is prevented from being oxidized. have.

5 is a perspective view illustrating a state in which the first joint support groove 12 and the second joint support groove 13 are alternately formed in the 90 ° direction at both ends of the joint fitting 10, and FIG. 6 is the first joint of FIG. 5. A perspective view showing a state in which the first joint 20 and the second joint 30 are bent along the support groove 12 and the second joint support groove 13.

At both ends of the joint joint 10, the first joint 20 and the second joint 30 are bent at a right angle to the joint joint 10 and the first joint support groove 12 and the second joint support groove ( 13) is formed, the first joint support groove 12 and the second joint support groove 13 is formed to be perpendicular to each other when viewed relative to the cross section of the joint 10.

Therefore, by bending the first joint 20 and the second joint 30 at right angles to each other based on the joint joint 10, the second shaft 24 of the first joint 20 and the second joint 30 of the second joint 30 are perpendicular to each other. The shaft 34 may be inserted into the first joint support groove 12 and the second joint support groove 13.

7 is a perspective view illustrating a state in which the first joint support groove 12 and the second joint support groove 13 are alternately formed in the 180 ° direction at both ends of the joint fitting 10, and FIG. 8 is the first joint of FIG. 7. A perspective view showing a state in which the first joint 20 and the second joint 30 are bent along the support groove 12 and the second joint support groove 13.

At both ends of the joint joint 10, the first joint 20 and the second joint 30 are bent at a right angle to the joint joint 10 and the first joint support groove 12 and the second joint support groove ( 13) is formed, the first joint support groove 12 and the second joint support groove 13 is formed in the opposite direction when viewed relative to the cross section of the joint 10.

Therefore, the first joint 20 and the second joint 30 are bent in opposite directions with respect to the joint joint 10, so that the first shaft 24 and the second joint 30 of the first joint 20 are separated. The second shaft 34 may be inserted into the first joint support groove 12 and the second joint support groove 13.

On the other hand, the first joint 20, one end is coupled to one end of the joint joint 10 so as to be rotated 360 ° when viewed based on the flat cross-section of the joint joint 10 and the other end is coupled to the male or female screw.

The second joint 30 is coupled to the other end of the joint joint 10 so that one end is rotated 360 ° when viewed based on the flat cross section of the joint joint 10, and the male or female screw is coupled to the other end.

The first joint 20 and the second joint 30, the first ball portion 21 and the second ball portion 31 of the spherical shape is formed at one end, the first female screw portion to be fastened to the male screw portion at the other end 22 and the second female screw portion 32 are formed, and the first ball portion 21, the second ball portion 31 and the first female screw portion 22, the first female portion 32 The first shaft 24 and the second shaft 34 having a thickness smaller than the diameter of the 21 and the second ball portion 31 are integrally connected.

On both sides of the first female threaded portion 22 of the first joint 20 and on both sides of the second female threaded portion 32 of the second joint 30, the first wavefronts 23 and the second wavefront in the plane 33 are formed. Therefore, it is easy to grip the outer surfaces of the first female screw portion 22 and the second female screw portion 32, and thus the first joint 20 and the second joint 30 can be easily coupled or loosened to other parts. .

9 is a partially separated perspective view illustrating a state in which the auxiliary fastening screw 50 is coupled to the first joint 20 or the second joint 30.

The auxiliary fastening screw 50 is coupled to the first female screw part 22 or the second female screw part 32. The auxiliary fastening screw 50 includes a bolt head 51 and a male screw part 53. The bolt head portion 51 is provided with an auxiliary male screw portion 52 so as to be fastened to the first female screw portion 22 or the second female screw portion 32.

FIG. 10 is a side view showing a state in which the auxiliary fastening screw 50 is installed on the wall 1, and FIG. 11 is a side view showing a state in which the auxiliary fastening screw 50 is installed on the ceiling 2.

In this way, the auxiliary fastening screw 50 is fixed to the wall 1 or the ceiling 2, the first joint 20 is fastened to the auxiliary fastening screw 50, and the shelf 3 is attached to the second joint 30. ) Or other parts with a set screw (4).

In the articulated multipurpose fastener of the present invention, one end of the first joint 20 and the joint joint 10 and the other end of the second joint 30 and the joint joint 10 may be rotated 360 ° so that the shelf 3 may be rotated. The position and angle can be adjusted relatively freely.

12 is a perspective view showing a state in which the secondary joint 60 is coupled to one end of the joint 10, Figure 13 is a secondary joint 60 showing the state in which the articulated multi-use fastener is connected continuously Side view.

The auxiliary joint 60 may be used as a substitute for the first joint 20 or the second joint 30.

The auxiliary joint 60 has a spherical ball portion 61 formed at one end thereof, and a male screw portion 62 formed at the other end thereof so as to be fastened to a female screw portion, and between the ball portion 61 and the male screw portion 62. The shaft 63 of thickness smaller than the diameter of the ball part 61 is integrally connected.

Therefore, the ball portion 61 of the auxiliary joint 60 is coupled to the first bent portion 14 of the joint fitting 10, and the second joint 30 is attached to the second bent portion 15 of the joint fitting 10. By combining it can be provided with an articulated multi-use fastener.

Articulated multipurpose fastener of the present invention has the advantage that can be used continuously connected. As shown in FIG. 13, the auxiliary joint 60 of one articulated multipurpose fastener may be coupled to the second joint 30 of the other articulated multipurpose fastener.

In this way, when a plurality of articulated joints are used in connection, the joint portion is increased by that, and the angle and position can be freely adjusted.

The elastic support 40 is embedded in the joint fitting 10 and elastically supports corresponding ends of the first joint 20 and the second joint 30 in the outward direction of the joint fitting 10.

The elastic support portion 40, the first ball portion 21 and the first ball portion 21 of the first joint 20 and the second ball portion 31 of the second joint 30 to elastically support the first ball portion 21 and The outer circumferential surface of the second ball portion 31 and the inner circumferential surface of the first bent portion 14 and the second bent portion 15 are in contact with each other, and are coupled to both ends of the spring 41 and the first ball portion, respectively. The first ball support part 42 and the second ball support part 45 supported by the 21 and the second ball part 31 are formed.

The first ball support portion 42 and the second ball support portion 45 are respectively inserted into both ends of the spring 41 to support the first spring coupling portion 43 and the second spring coupling portion for supporting both ends of the spring 41. The first ball portion 21 is formed integrally with the first spring coupling portion 43 and the second spring coupling portion 46 and is in point contact with the first ball portion 21 and the second ball portion 31. And a first ball ground surface 44 and a second ball ground surface 47 to reduce the frictional resistance with the second ball portion 31.

The first ball support part 42 and the second ball support part 45 may be made of a soft stainless material, or may be made of a high strength plastic material.

The articulated multipurpose fastener of the present invention may adjust the angle of the joint joint (), the first joint (), and the second joint (), and then apply a high-strength adhesive to set the position adjusted.

The articulated multipurpose fastener of the present invention has the following advantages.

First, the present invention is a joint joint 10, the first joint 20 is coupled to one end of the joint 21, the first ball 21 to rotate 360 °, and the other end of the joint 10 The second ball part 31 is composed of a second joint 30 is coupled to rotate 360 °.

Therefore, since the first joint 20 and the second joint 30 are coupled to rotate 360 ° with respect to the joint joint 10, the angle of the joints is freely adjusted, and accordingly, the setting position of the parts installed in the joints is smoothly adjusted. Can be.

Second, the articulated multi-use fastener of the present invention, when the first joint 20 or the second joint 30 is bent with respect to the joint 10, the first axis 24 or the second joint of the first joint 20 ( The second shaft 34 of 30 is inserted into the first joint support groove 12 or the second joint support groove 13 of the joint fitting 10.

Therefore, when the first shaft 24 or the second shaft 34 is fitted into the first joint support groove 12 or the second joint support groove 13, the first joint 20 or the second joint 30 is articulated. Rotation around the fitting port 10 is prevented, and thus the first and second joints 20 and 30 in a bent state are stably supported.

Third, the joint joint 10 of the present invention, the first bent portion 14 and the second bent portion 15 for joint support are formed at both ends, the first bent portion 14 and the second bent portion 15 ) Around the first bent portion 14 and the second bent portion (15) when retracting the ring shape along the circumference of the first bent portion 14 and the second bent portion 15 so that the circumference is uniformly bent The first bent groove 16 and the second bent groove 17 is formed.

Accordingly, the first ball portion 21 and the second ball portion 31 of the second joint 30 are inserted into both ends of the joint joint 10, and then the first bent portion 14 and the second bending portion. When the part 15 is bent, the first bent groove 16 and the second bent groove 17, which are thinner than other portions, are bent, so that the first bent part 14 and the second bent part ( 15 is bent in a uniform shape around the first ball portion 21 and the second ball portion 31.

Fourth, the joint joint 10 of the present invention is made of spheroidal graphite cast iron, heated to 1520 ~ 1580 ℃ spheroidal graphite cast iron and then desulfurization treatment, magnesium containing 0.3 ~ 0.7% of spheroidizing treatment agent It is made by heat treatment after spheroidizing treatment at 1455 ~ 1495 ℃.

Therefore, since the spherical graphite cast iron has a small notch effect, the stress concentration phenomenon is reduced and the strength and toughness are greatly improved, and thus the first bent portion 14 and the second bent portion 15 are not damaged.

Therefore, since the first bent portion 14 and the second bent portion 15 are not damaged, the first ball portion 21 and the second ball portion 31 are separated from the first bent portion 14 and the second bent portion 15. It does not go away.

Fifth, the powder formed by mixing 88 to 92% of chromium oxide (Cr ₂ O ₃ ) and 8 to 12% of aluminum oxide (Al ₂ O ₃ ) is circumferentially around the joint fitting 10 of the present invention. It is provided to have a particle size of the powder is coated around the joint 10.

Accordingly, since the coating layer having excellent oxidation resistance and hardness is formed around the joint fitting 10, the joint fitting 10 including the first bent part 14 and the second bent part 15 is prevented from being oxidized or damaged. Accordingly, the first ball portion 21 and the second ball portion 31 are stably supported without being separated from the first bent portion 14 and the second bent portion 15.

Sixth, the auxiliary fastening screw 50 composed of the bolt head 51 and the male screw part 53 is coupled to the first female screw part 22 or the second female screw part 32 of the present invention, and the bolt head part ( 51, an auxiliary male screw portion 52 is formed to be fastened to the first female screw portion 22 or the second female screw portion 32.

Therefore, after fixing the auxiliary male screw portion 52 to the wall 1, the ceiling 2, or the product, the first female screw portion 22 of the first joint 20 or the second female screw portion of the second joint 30 ( 32 may be coupled to the auxiliary male screw portion 52 of the bolt head 51 by coupling.

Therefore, the articulated multipurpose fastener of the present invention can be easily fixed in various places and positions.

Seventh, the articulated multi-purpose fastener of the present invention is a spring 41 in the state in which the first ball portion 21, the second ball portion 31 and the first ball support portion 42, the second ball support portion 45 is in point contact By elastic support.

Accordingly, since the first ball portion 21, the second ball portion 31 and the first ball support portion 42, the second ball support portion 45 is in point contact, the frictional resistance therebetween is minimized. It is relatively easy to bend the first joint 20 and the second joint 30 freely.

In addition, by adjusting the angle of the first joint 20 and the second joint 30 by the elasticity of the spring 41, the angle adjusted state is set as it is without a separate tool.

1: wall 2: ceiling
3: lathe 4: fixing screw
10: joint joint 11: coupling hole
12: first joint support groove 13: second joint support groove
14: first bent portion 15: second bent portion
16: first bending groove 17: second bending groove
20: first joint 21: first ball part
22: 1st female thread part 23: 1st gripping surface
24: 1st axis 30: 2nd joint
31: 2nd ball part 32: 2nd female thread part
33: second wave surface 34: second axis
40: elastic support 41: spring
42: first ball support portion 43: first spring coupling portion
44: first ball ground 45: second ball support portion
46: second spring coupling portion 47: the second ball ground
50: auxiliary tightening screw 51: bolt head
52: auxiliary male thread portion 53,62: male thread portion
60: auxiliary joint 61: ball part
63: axis

Claims (12)

Hollow joint 10;
A first joint 20 having one end coupled to one end of the joint fitting 10 and having a male or female screw coupled to the other end thereof so as to be rotated 360 ° when viewed based on a flat cross section of the joint fitting 10;
A second joint 30 having one end coupled to the other end of the joint fitting 10 so as to be rotated 360 ° when viewed based on the planar cross-section of the joint fitting 10 and having a male or female screw coupled to the other end;
An elastic support part 40 embedded in the joint joint 10 and elastically supporting the corresponding ends of the first joint 20 and the second joint 30 in the outward direction of the joint joint 10;
Joint joint 10,
It is made of nodular cast iron and heated to 1520 ～ 1580 ℃ to make molten metal, followed by desulfurization treatment, and then spheroidized at 1455 ～ 1495 ℃ with spheroidizing treatment containing 0.3 ~ 0.7% magnesium. Articulated multipurpose fastener, characterized in that made by heat treatment.
delete delete delete delete delete Hollow joint 10;
A first joint 20 having one end coupled to one end of the joint fitting 10 and having a male or female screw coupled to the other end thereof so as to be rotated 360 ° when viewed based on a flat cross section of the joint fitting 10;
A second joint 30 having one end coupled to the other end of the joint fitting 10 so as to be rotated 360 ° when viewed based on the planar cross-section of the joint fitting 10 and having a male or female screw coupled to the other end;
An elastic support part 40 embedded in the joint joint 10 and elastically supporting the corresponding ends of the first joint 20 and the second joint 30 in the outward direction of the joint joint 10;
Around the joint joint 10,
The coating layer is coated, but the powder composed of chromium oxide (Cr ₂ O ₃ ) 88-92% and aluminum oxide (Al ₂ O ₃ ) 8-12% is provided to have a powder particle size of 10 ~ 44㎛ joint joints ( 10) is coated, the coating layer is 50 ~ 600㎛ thickness around the first bent portion and the second bent portion, the hardness is 900 ~ 1000HV, plasma roughness to maintain the surface roughness 0.1 ~ 0.3㎛ Articulated multi-use fasteners characterized in that.
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