KR101518683B1 - duct for pipe insulation - Google Patents

Abstract

The present invention relates to a duct for pipe insulation, which is bound and fixed by being divided into an upper part and a lower part to protect a pipe insulating material. In a traditional method, such a duct was configured so that an extension limiting stumbling part and an extension binding unit in a divided duct of the upper part and the lower part may protrude from outside of the top and bottom respectively, so that the extension limiting stumbling part may be inserted into and fixed to the extension binding unit, however a problem of hurting aesthetic impression due to bad looking and roughness in an aspect of interior design by the extension limiting stumbling part and the extension binding unit protruding outwardly appeared and the extension limiting stumbling part and the extension binding unit which protrude sharply became a factor of damaging a worker, thereby causing a problem of an increase of working time due to the time of paying attention to such a damage, thus the present invention prevents an exposure of stumbling segment giving a self elastic force to the upper division duct by inserting the stumbling segment into the lower division duct when binding and fixing the upper division duct and the lower division duct to enhance aesthetic impact of interior design and prevents injury of a worker, and additionally, secures tight fixing force with self elastic force against heat expansion and heat constriction generated by piping and outside cold air to protect piping and insulating materials.

Description

Duct for pipe insulation Duct for pipe insulation

[0001] The present invention relates to a duct for protecting a pipe insulation, and more particularly, to a duct for protecting a pipe of a boiler or a pipe used as a cold or hot water pipe, and an upper split duct and a lower split duct The fixing means of the upper divided duct is fixed in a state of being inserted into the lower divided duct and is not exposed to the outside, thereby giving a unified aesthetic feeling to the connected duct, and even when the thermal expansion and the heat shrinkage The upper split duct is formed as a single body and the upper split duct is formed as a single body while the stainless steel plate is formed without forming a part into several pieces in the sheet metal working for banding work by protecting the piping and the heat insulating material by the self- By largely forming into three pieces, banding and assembly are simplified, The failure rate will increase on duct pipe insulation that allows significantly lower.

Generally, a piping such as a gas pipe or a cold or hot water pipe is wrapped around the outside with a heat insulating material so as to preserve the heat inside the pipe. The outer periphery of the wrapped heat insulating material is prevented from being exposed to the outside, Respectively.

These protective ducts use ducts that are formed in a generally straight line to protect straight and curved piping to move the fluid, and elbow ducts that are bent at 90 ° to adjust the moving position.

The duct assembled as described above is formed by forming a circular pipe with the upper split duct and the lower split duct formed in a semicircular shape and fixing them by means of fixing them.

As a fixing means, there has been disclosed a conventionally-disclosed Patent Publication No. 2009-0095453 (name: an elbow duct for a pipe insulation). In brief, when the expansion restricting portion and the expanding fastening means are provided on the upper and lower split ducts And the extension limiting engaging portion is inserted and fixed to the expansion binding means.

However, the conventional duct has the effect of quickly fixing the upper and lower divided ducts divided by the one-touch method. However, in the state in which the extended-release fastening portion and the extended fastening means used as the fastening means are exposed to the outside There is a problem that the appearance of the interior is deteriorated due to unfavorable appearance in terms of design.

In addition, since the duct is generally formed of a thin stainless steel plate, the extended fastening portion and the expanding and fastening means, which are projected as described above, may cause injury to the operator. There is also a growing problem.

In addition, the protruding extension latching portion and the extending binding means are elongated along the bent portion of the elbow, so that when one side of the extension latching portion is fitted in the expansion binding means, the elastic repulsive force in the other direction is strong, There is a problem in that it is difficult to remove the extension fastening portion which is firmly fixed by the expansion binding means when the upper and lower split ducts are dismantled in order to replace the piping and the heat insulating material after fixation.

In order to produce a conventional duct, a stainless steel plate is sliced into several pieces, and the various pieces thus formed are fused by spot welding to form upper and lower split ducts. When a plurality of pieces are sliced, the consumption of the stainless steel plate The cost of materials is increased and the process of fusing the pieces is not easy, so that the generation of defective products is increased, and the working time for fusing the pieces is increased, and the production speed is lowered.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an absorbent article in which the anchoring elastic members and the anchoring means formed on the upper and lower split ducts are fixed to each other, The worker is spaced apart by a predetermined distance so as to exhibit a single or weak elastic repulsive force formed in an appropriate length for facilitating the engagement of the engaging elastic piece with the engaging means, And a plurality of fastening means are firmly fixed at the center and both sides are fastened to such a degree as to be able to support the repulsive force so that the worker can easily dismantle the fastening means. In addition, when the stainless steel plate is sheeted, The split ducts are integrally molded and the lower split ducts are formed into three pieces Property to increase the production rate, error rate is to provide a duct for pipe insulation to lowered.

The present invention is configured as follows to achieve the above object. That is, the upper divided duct is provided with an upper main body that forms a body, and each of the front and rear side end portions of the lower main body is curved so as to curved inward to form respective engaging elastic pieces each having a self-elastic force, And the lower split duct is provided with a lower body constituting a body and is constituted by an engaging means protruding inward of a lower body at a position corresponding to the engaging elastic piece .

The first return portion extends from the first return portion so as to curve inward in the upward direction, and then extends inwardly in the inner direction. The first return portion extends from both ends of the upper body so as to have self-elasticity, A second return part formed to bend into the first return part and to receive the upper front end and the rear end of the lower divided duct, and a second return part that is curved downward in the second return part, And an insertion guide portion for guiding the insertion of the upper front and rear end portions of the lower divided duct, and a locking protrusion protruding outwardly of the insertion guide portion and hooked to the locking means.

On the other hand, the engaging means is constituted by a first fastening opening formed to be long in the longitudinal direction at a position corresponding to the fastening protrusion in the lower divided duct and protruding in the inward direction, And a second latching protrusion formed to be protruded inward in the longitudinal direction.

Alternatively, the engaging means may include a plurality of elastic retaining members arranged at regular intervals in the upper divided duct, a first retaining member projecting inward in the longitudinal direction at a position corresponding to the elastic retaining member located at the center of the elastic retaining members, A second engaging portion which is spaced apart from the first engaging portion in the downward direction and which is elongated in the longitudinal direction and protrudes in the inward direction and has a semicylindrical shape convex inward in the position corresponding to the elastic engaging pieces, And the resilient latching means and the engaging means are radially disposed at predetermined intervals in the bent elbow portions of the upper and lower divided ducts.

In addition, the upper and lower split ducts include a plurality of reinforcing sections having a space so as not to be deformed by securing a space for expanding and reducing the thermal expansion and heat shrinkage due to the heat of the piping and the external cold air.

In addition, the upper divided body is integrally formed with a connecting portion at the uppermost portion of the upper body, and each of the lower divided ducts has respective extended portions fixed to both sides of the lower body.

As described above, according to the present invention, when the upper and lower divided ducts are fastened and fixed to each other by the engaging elastic piece and the engaging means, the locking elastic piece is inserted into the duct and is hidden without being exposed to the outside, So that an aesthetic sense can be induced.

In addition, since the worker does not expose the hooked elastic member to the outside during assembly, it is possible to prevent injury in advance, thereby improving the work speed and achieving the quick assembly work.

Further, when the ends of the lower divided duct are inserted and fixed by forming the first return portion and the second return portion to provide the self-elastic force and securing the accommodation space inside the second return portion, The upper and lower split ducts are prevented from being displaced in the upward and downward directions, and the curved surfaces connecting the first return portion and the second return portion support the inner and outer sides of the lower split duct to prevent the first and second split portions from departing in the lateral direction .

In addition, since the engaging means is formed as the first and / or second engaging portions so that the engaging jaws are engaged with different positions, the inner diameter of the duct can be adjusted.

The engaging elastic pieces are formed in plural numbers at regular intervals so that the elastic repulsive force is weak so as to form the corresponding engaging means. The engaging elastic pieces at the center are firmly fixed. The upper and lower split ducts can be fastened and disassembled quickly by the auxiliary fastening portions formed in a semicircular shape for facilitating the fastening and disassembly of the upper and lower split ducts and the elastic restoring force of the stainless steel, There is an effect that the fixed state can be maintained.

By forming the reinforcing portion having the supplementary space in the upper and lower divided ducts, the supplementary space appropriately accommodates the thermal expansion caused by the temperature difference between the inside and the outside of the duct and the size deformation due to heat shrinkage, It is effective.

When the upper and lower split ducts are formed to form the upper split duct and the lower split duct, the upper split duct is integrally sheeted through the joint,

1 is a perspective view showing a duct according to the present invention in which a pipe and a heat insulating material according to the present invention are installed.
FIG. 2 is a perspective view showing a state in which the pipe and the heat insulating material are removed in FIG.
Fig. 3 is an exploded perspective view of Fig.
4 is a bottom perspective view showing the inside of the upper divided duct according to the present invention.
FIG. 5 is a cross-sectional view of the interior of the duct shown in FIG. 2,
Fig. 6 is a side sectional view of the engaging elastic piece positioned at the front according to the present invention and the state of entry of the engaging means,
Fig. 7 is a view showing a state in which a locking elastic piece disposed at the front according to the present invention is engaged with the engaging means, Fig. 7a is a state in which the engaging jaw is engaged with the first engaging portion, Fig. 7b is a state in which the engaging jaw is engaged with the second engaging portion Fig. 7C is a side cross-sectional view of the state in which the other engaging jaw is engaged with the auxiliary engaging portion; Fig.
FIG. 8 is a partially developed view of upper and lower split ducts according to the present invention, wherein FIG. 8A is a state in which the upper body is integrally sheeted, FIG. 8B is a state in which the lower body,

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Both end portions of a duct penetrated through the duct will be described as both sides, Explain.

The duct 1 of the present invention is divided into upper and lower divided ducts 10 and 30 which are divided so that the outer circumference of the heat insulating material 200 surrounding the pipe 100 is accommodated therein as shown in FIGS. And the lower split duct 30 corresponding to the retaining elastic piece 20 are formed with hooking means 40 so as to be engaged with the lower split duct 30, (20) is guided to the inside of the lower divided duct (30) so as not to be exposed, and then is caught and fixed to the engaging means (40).

Further, the upper and lower divided ducts 10 and 30 may be an elbow of an "L" shape or a straight tube of a "-" shape.

As shown in FIGS. 3 to 7, the upper divided duct 10 is formed as a body having an upper portion 11 formed in a semicircular shape with a lower side thereof opened and both sides thereof being perforated, The lower end of the open lower end portion is formed with the engaging elastic piece 20 extending in a curved state so as to have a self-elastic force so that the front and rear end portions of the lower divided duct 30 formed in the corresponding semicircular shape are inserted smoothly without lifting- And a locking protrusion 23 protruding outward from the lower end of the locking elastic piece 20 and fixed to the locking means 40 is formed.

Here, it is preferable that the engaging elastic piece 20 has a self-elastic force so as to provide a repulsive force that can be fixed after the engaging jaw 23 moves along the engaging means 40.

Therefore, the retaining elastic piece 20 is formed with the first return portion 21 which upwardly extends the front and rear end portions of the upper body 11 in the inward direction, and the first return portion 21, The second return portion 22 is curved in a downward direction and the lower return duct 22 inserted in the lower portion of the second return duct 22 is curved inwardly And a latching protrusion 23 protruding outward in a downward direction extending downward from the second returning portion 22. The latching protrusion 23 protrudes outward from the second returning portion 22 in the receiving space 22a.

By providing the first and second return portions 21 and 22 in the engaging elastic piece 20 as described above, when the lower divided duct 30 formed of a semicircular shape enters the receiving space 22a, Since the distance between the front and rear end portions is shorter than the distance between the front and rear sides of the accommodation space 22a, the first return portion 21 is disengaged, the second return portion 22 is inserted while being given elastic force, After the returning of the first return portion 21 and the second return portion 22 is completed, the engaging jaw 23 is moved along the engaging means 40 with an elastic force .

Further, a lower end of the second return portion 22, which is curved downwardly, is formed with an insertion guide portion 24 sloped inwardly, so that front and rear end portions of the lower divided duct 30 smoothly enter And when the engaging step 23 is moved by the elastic force along the engaging means 40 so as to guide the engaging step 23 to the outside of the insertion guide part 24, The range of the second return portion 22 is reduced and the curved surface extension portion of the second return portion 22 pushes the heat insulating material 200 filled in the duct, It is possible to prevent the deterioration of the heat insulating effect.

The engaging elastic pieces 20 may be formed of a single piece having an appropriate length or may be disposed at a predetermined distance. When the plurality of pieces are formed, they may be disposed on both sides of the center, When a force due to thermal expansion and heat shrinkage is applied, it is preferable that the force is canceled by two.

Further, when the upper and lower divided ducts 10 and 30 are elbows, a plurality of engaging elastic pieces 20 are formed in a radial pattern at regular intervals in a portion that meets at right angles.

When the engaging jaws 23 of the radially disposed elastic pieces 20 are caught by the engaging means 40, the central engaging elastic pieces 20 of the upper divided duct 10 The other engaging elastic pieces 20 on both sides are caught by the engaging means 40, so that it is possible to prevent them from being arbitrarily disengaged.

4 and 5 to 7, the lower divided duct 30 has a shape corresponding to that of the upper divided duct 10 and is open at the upper part and formed in an inverted semi- And an engaging means 40 protruding inward at a position corresponding to the engaging elastic piece 20 of the upper divided duct 10 at the front and rear sides of the lower main body 31 And the front and rear end portions of the lower divided duct 30 are inserted into the receiving space 22a of the second return portion 22 and then the stopping jaw 23 is fixed to the inside of the lower divided duct 30 Respectively.

The upper and lower split ducts 10 and 30 are inserted into the upper split duct 10 so as not to be exposed to the outside when the upper and lower split ducts 10 and 30 are fastened and fixed like the latching elastic piece 20 And a first latching part 41 formed to be long in the longitudinal direction and protruding inwardly may be formed so that the latching jaw 23 is hooked to the lower end.

The second engaging portion 42 is formed at a position spaced apart from the first engaging portion 41 in the downward direction so that when the engaging jaw 23 is caught by the first engaging portion 41, The inner diameter of the duct 1 is relatively small and the inner diameter of the duct 1 is appropriately sized according to the diameter of the heat insulating material 200 when the inner diameter is large and the position is shifted and caught in the second latching portion 42 There is a controllable effect.

At this time, when the latching jaw 23 is caught by the second latching portion 42, the front and rear ends of the lower divided duct 30 can enter the upper portion of the accommodating space 22a of the second return portion 22 It will be self-evident to secure distance.

Alternatively, when the engaging elastic pieces 20 are disposed at a plurality of intervals with a predetermined interval, the engaging means 40 is also disposed at a number and position corresponding to the plurality of engaging pieces, and the engaging elastic piece 20 located at the center The corresponding engaging means 40 is provided with first and second fastening openings 41 and 42 vertically protruding inwardly in the longitudinal direction with a gap therebetween, The engaging means 40 corresponding to the engaging elastic piece 20 is formed with the auxiliary engaging opening 43 protruding inwardly so that the engaging elastic piece 20 at the center is relatively firmly engaged with the first or second The engaging elastic piece 20 which is fixed to the lower end of the locking holes 41 and 42 and is caught by the auxiliary locking hole 43 is moved to the lower peripheral edge along the convex surface with a relatively small force, The central engaging elastic piece 20 performs the function of heat deformation occurring in the duct 1 and the outside The first and second fastening openings 41 and 42 are configured such that the auxiliary fastening openings 43 are supported by the nut for supporting the lower split ducts 10 and 20 to be disassembled. The engaging elastic piece 20 of the auxiliary engaging part 43 having a convex surface is easily detached when the biased elastic engaging piece 20 is pulled out and then pulled out.

Here, the auxiliary locking portions 43 are formed at a plurality of appropriate intervals so that the locking elastic piece 20 can move along the convex surface more smoothly than the auxiliary locking portion 43, so that the frictional force with the locking jaw 23 So that it can be easily moved.

A plurality of reinforcing portions 50 protruding outward are formed at the outer periphery of the upper and lower divided ducts 10 and 30 at a predetermined interval. A supplementary space 51 for securing a space is constituted.

As shown in FIGS. 4 and 5, the reinforcement 50 improves the durability of the upper and lower split ducts 10 and 30. When thermal deformation occurs due to thermal expansion and heat shrinkage, The reinforcing portion 50 can be expanded and contracted by the reinforcing portion 51 to prevent the duct 1 from being damaged by the complete deformation.

The upper divided duct 10 and the lower divided duct 30 are formed by sheeting unlike the conventional case and the lower divided duct 30 is divided into a maximum of three pieces And is formed by sheet metal.

Specifically, as shown in FIG. 8, the first stainless steel sheet is subjected to sheet metal machining in the same manner as the developed view of the upper and lower divided ducts 10 and 30. In this state, the upper main body 11 is cut into a convex curved surface on both sides where the respective engaging elastic pieces 20 are located, so that the upper main body 11 is bent at an upper portion of the upper divided duct 10 And the lower split duct 30 is formed by concave both sides of the lower main body 31 of the elbow part and has an extension pipe (not shown) fixed to the concave parts of both sides thereof 31a, and 31b are formed, and the sheet can be sliced up to three pieces.

The lower body 31 and the extension pipes 31a and 31b are integrally formed and bent in a semicircular shape by rolling the upper and lower bodies 31 and 31b and then fixed to the front and rear ends by rivets The upper and lower divided ducts 10 and 30 are formed.

Accordingly, it is possible to solve the problem of the defect rate due to the process of spot welding the conventional upper and lower divided ducts into a plurality of pieces and performing the spot welding one by one, and the defect rate due to the long working time.

The assembling work of the duct 1 constructed as above will be described below.

The upper and lower divided ducts 10 and 30 are fitted to the outer side of the heat insulating material and the front and rear ends of the lower divided duct 30 are engaged with each other And enters the accommodation space 22a while being guided by the insertion guide portion 24 provided in the elastic piece 20. [

At this time, since the distance between both ends of the front and rear sides of the lower divided duct 30 formed in a semicircular shape is smaller than the distance of the entrance of the both side accommodating space 22a, the first return portion 21 is pushed down and the second return portion 22 And is inserted while increasing the elastic force of the latching elastic piece 20.

The first and second return portions 21 and 22 are fastened to each other by the restoring elastic force so that the hooking jaws 23 that have been fastened in the original position are fastened to the first or second fastening portions 41 And in the case of the plurality of retaining elastic pieces 20, the other retaining elastic pieces 20 on both sides are similarly restored while being caught by the convex auxiliary retaining openings 43 and easily fixed in a one-touch manner .

In particular, when the duct 1 is an elbow as described above, the plurality of latching elastic pieces 20 are radially arranged at regular intervals and fixed to the latching means 40 in a one-touch manner, Even when the generated force is applied to move the latching jaw 23, the force applied to the other engaging piece 20, that is, the direction of the force applied vertically due to thermal expansion, can be prevented from being arbitrarily disassembled.

The front and rear end portions of the lower divided duct 30, which have entered into the receiving space 22a and are fixed by the engagement elastic piece 20 and the engaging means 40, By being supported by the front and rear wall surfaces of the accommodating space 22a, it is also possible to prevent deviation in the forward and backward directions.

When the thermal expansion of the duct 1 and the thermal contraction due to the external cold air are generated in the piping 100 due to the movement of the high-temperature fluid, the reinforcing portion 50 provided in the upper and lower divided ducts 10 and 30, Can be expanded and contracted by utilizing the replenishment space 51 to prevent complete deformation.

As described above, when the upper and lower divided ducts 10 and 30 of the present invention are fastened and fixed, the engaging elastic piece 20 is inserted into the lower divided duct 30 and concealed, thereby preventing exposure to the outside The worker can be prevented from being injured during the work because the worker is not exposed to the outside, and by using the elastic force generated in the first and second return portions 21 and 22, It is possible to provide a duct for a pipe insulation which can quickly and easily fasten and disassemble the upper and lower divided ducts 10 and 30. [

The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the technical idea of the present invention.

Duct: 1 Top split duct: 10
Upper body: 11 Connection: 12
Elastic Elastic: 20 1st Return: 21
Second Return Unit: 22 Capacity Space: 22a
Jaw: 23 Insertion guide: 24
Lower split duct: 30 Lower main body: 31
Extension tube: 31a, 31b Retaining means: 40
First engaging portion: 41 Second engaging portion: 42
Supplementary clamping part: 43 Reinforcement part: 50
Supplemental space: 51 Piping: 100
Insulation: 200

Claims (9)

A duct (1) for fixing an upper divided duct (10) and a lower divided duct (30) in a tube shape so as to protect a pipe (100) wrapped with a heat insulating material (200)
The upper split duct 10 is provided with an upper main body 11 constituting a body and has front and rear end portions of the lower portion of the upper main body 11 curved inward inwardly, (20) are formed respectively, and a latching jaw (23) protruding outwardly of the latching elastic piece (20) is formed,
The lower divided duct 30 includes a lower body 31 constituting a body and constitutes an engaging means 40 protruding inward of a lower body 31 at a position corresponding to the engaging elastic piece 20 When the upper and lower split ducts 10 and 30 are fixed, the latching elastic piece 20 is inserted into the lower main body 31 so that the latching elastic piece 20 is hidden without being exposed to the outside, The retaining means 40 includes a plurality of elastic retaining pieces 20 arranged at regular intervals in the upper divided duct 10 and a plurality of resilient retaining pieces 20, (41) which is spaced apart from the first latching portion (41) in the downward direction and which is elongated in the longitudinal direction and protrudes inward in the longitudinal direction, and a second latching portion And at the positions corresponding to the elastic catching pieces 20 located on the other sides, Ducts for pipe insulation, characterized in that a plurality of auxiliary arches consisting rokhan engagement port 43 is formed into a shape.
The method according to claim 1,
Wherein the plurality of elastic retaining pieces 20 and the retaining means 40 are radially disposed at predetermined intervals in the bent elbows of the upper and lower split ducts 10 and 30. [ duct.
The method according to claim 1,
The upper and lower split ducts 10 and 30 are provided with a plurality of reinforcement portions 10a and 10b having a space so as not to be deformed by securing the expansion and reduction supplement spaces 51 when thermal expansion and heat shrinkage are caused by the heat of the pipe 100, (50) is formed in the duct (50).
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