KR102184827B1 - Penetrating Type Sleeve For Wall Structure - Google Patents

Abstract

The present invention relates to a through sleeve for a wall, comprising: a first sleeve (3) fixed to a formwork when making a wall by pouring concrete to form one end of the through hole in the wall; And a second sleeve (5) that is fixed to a formwork when making a wall by pouring concrete and is elastically coupled to the first sleeve (3) so as to form the other end of the through hole in the wall. The sleeve (3) is integrally formed to close the first cylindrical portion (31) in a hollow cylindrical shape to form one end of the through hole, and the opposite side end of the second cylindrical portion (51) of the first cylindrical portion (31) The second sleeve (5) comprises a second cylindrical portion (51) having a hollow cylindrical shape to form the other end of the through hole, and the second cylindrical portion (51). It is characterized by consisting of a second stopper 53 integrally formed to close the opposite side end of the first cylindrical part 31, and therefore, the length can be adjusted so that it can be used regardless of the spacing of the formwork, so that the usable range is one layer. It can be expanded, and since the first and second sleeves and the first and second plugs can be integrally molded, production efficiency can be increased, and the length can be freely adjusted or elasticized without fear of separation of the first and second sleeves. As a result, it is possible to provide a through sleeve that can be adjusted to the spacing of the formwork and is easy to install.

Description

Penetrating Type Sleeve For Wall Structure

The present invention relates to a through sleeve for a wall, and more particularly, it is divided into first and second sleeves so that the entire length can be expanded and contracted, but the first and second sleeves are not easily separated, and the adhesion to the formwork It is excellent in this, and it relates to a through sleeve for a wall that makes it convenient to install into a formwork.

In general, the wall of a building must have a through hole through which pipelines such as ventilation, cooling and heating, sprinkler, electrical wiring, sewage, air conditioning duct, firefighters, gas pipes, air conditioners, etc. penetrate.

In order to make such a through hole in a building, after fixing a through sleeve with a certain diameter and width inside the formwork, concrete is poured. After fixing the through sleeve by inserting the fasteners at both ends of the fastener, and fixing the a-shaped connecting piece at the upper end of the fastener, the bent end of the connecting piece is fixed above the mold, and the fastener is also fixed to the mold.

However, since the conventional through sleeve is fixed to the building formwork through a coupling piece of a certain length, it is not free to adjust the height, and to install the through sleeve on the building formwork, the upper end of the coupling piece is fixed to the building formwork, and then combined. Since the process of fixing the lower part of the convenience to the through sleeve is cumbersome, there is a problem that the efficiency of work is deteriorated.

In addition, while the width of the building formwork is not constant, since it is impossible to adjust the length of the through sleeve according to the conditions of the site to be installed, there is a problem that the standardized through sleeve cannot be mass-produced.

On the other hand, as shown in Figure 1, in the case of mounting the through sleeve inside the formwork (F) by a screw type, reinforcing bars closely arranged at regular intervals inside the formwork (F) to increase the strength of the concrete wall ( S) It was difficult to fix and install the through sleeves of a certain size, which are joined in the form of a male and female, to the correct height between the molds (F) while adjusting the length to fit the spacing of the molds (F). In addition, even if it is inserted between the reinforcing bars (S), when adjusting the length by the width of the formwork (F) in the state where the through sleeve is to be installed, the entire through-sleeve body on the other side that is not fixed must be rotated. Therefore, it is difficult to install nails or fixtures to fix the through sleeve in a state where the installation height to the inside of the formwork (F) with a narrow space is adjusted, and the rotation of the through sleeve in which the body is made of male and female screws is considerable. And, moreover, due to the narrow space, such rotation and height adjustment becomes more difficult. In addition, when the sleeve is replaced due to a product defect, it is separated only through rotation, so there is a difficulty in maintenance.

In order to solve the above problems, Patent No. 10-1709634 filed by the present applicant, as shown in FIG. 2, allows the length of the through sleeve 101 to be easily and quickly adjusted by multi-threaded screwing and fixed to the formwork. Although the technology of the through sleeve using a multi-threaded thread is described, the core forming the inside of the first sleeve 103 at the time of manufacture by injection molding the through sleeve 101 having a threaded inside the first sleeve 103 In order to separate them, one side was made into an open shape, and the core was separated through the open side. Because of this, it is not possible to manufacture by integrally forming the stopper 107 and the first sleeve 103, and since the cylindrical part and the stopper must be separately manufactured, each mold is required, and the manufacturing process and assembly process increase, resulting in production cost. There was a problem of increasing.

In addition, since the first and second sleeves 103 and 105 are connected by screwing the female screw of the first sleeve 103 and the male screw of the second sleeve 105, the through sleeve 101 cannot have longitudinal elasticity as a whole. , Therefore, the adhesion to the formwork of the through sleeve 101 installed between the formwork decreases, and the length of the through sleeve 101 must be adjusted to the distance between the formwork through the position adjustment of the first and second sleeves 103 and 105. , There was a problem that the installation work became very difficult.

KR 10-1709634

The present invention has been proposed to solve the problems of the conventional through sleeve as described above, and by configuring the through sleeve by elastically combining the first and second sleeves, the through sleeve has various widths through length adjustment. Its purpose is to be able to install between the molds.

In addition, by dividing the through sleeve into first and second sleeves, the first and second plugs at the ends of each of the first and second sleeves corresponding to both ends of the through sleeve are integrated with the first and second cylindrical parts. Another purpose is to make it possible to mold into.

In addition, in connecting the first and second sleeves to be through sleeves, after the locking protrusion of the first sleeve and the locking protrusion of the second sleeve are joined by a certain width or more, it is possible to move freely in the longitudinal direction, so that it fits the formwork spacing. Another object is to prevent the first and second sleeves from being easily separated from each other while easy to adjust the length.

In addition, by interposing an elastic member between the first and second sleeves, when the through sleeve is reduced and placed at the installation position between the dies, the length of the through sleeve is automatically adjusted to the gap between the forms by the restoring force of the elastic member. Another object is to ensure that both ends of the penetrating sleeve are in close contact with the inner surface of the formwork by the restoring force of the elastic member and are strongly fixed.

In addition, when overcoming the reaction force of the elastic member and placing the through sleeve at the installation position between the molds in a reduced state, it is also possible to move the through sleeve comfortably in a reduced state despite the repulsion of the elastic member. For a different purpose.

In order to achieve this object, the present invention is a first sleeve fixed to a formwork when making a wall by pouring concrete to form one end of the through hole in the wall; And a second sleeve that is fixed to a formwork when making a wall by pouring concrete and is elastically coupled to the first sleeve so as to form the other end of the through hole in the wall, wherein the first sleeve includes one end of the through hole. A first cylindrical portion in the shape of a hollow cylinder to achieve, and a first plug portion integrally formed to close the opposite side end of the second cylindrical portion of the first cylindrical portion, and the second sleeve to form the other end of the through hole It provides a through sleeve for a wall comprising a second cylindrical portion having a hollow cylindrical shape, and a second plug portion integrally formed to close the opposite side end of the first cylindrical portion of the second cylindrical portion.

In addition, the first sleeve includes a locking protrusion formed on an inner circumferential surface of the second cylindrical portion lateral end of the first cylindrical portion, and the second sleeve is formed on an outer circumferential surface of the first cylindrical portion lateral end of the second cylindrical portion. It is preferable to include a protrusion.

In addition, it is preferable that the locking protrusion and the locking protrusion are formed in a multi-line threaded structure.

In addition, it is mounted on an elastic member mounting portion formed on an inner surface of one of the first and second plugs, and elastically compressed together when the first and second sleeves are reduced by an external force in a mutually coupled state. It is preferable to include a member.

In addition, during the process of forming the second sleeve, the second cylindrical portion has at least a pair of chamfered portions from which the locking projections are removed in the longitudinal direction along the outer circumferential surface to prevent the locking projections from being crushed by the mold when opening the mold. It is desirable to do.

In addition, the second sleeve is formed on the outer circumferential surface of the second cylindrical portion opposite the first cylindrical portion, it is preferable to include a stop protrusion to be caught on the locking protrusion when the first and second sleeves are reduced Do.

In addition, during the process of forming the second sleeve, when opening the mold, the second cylindrical portion is chamfered with at least a pair of the stop protrusions removed in the longitudinal direction along the outer circumferential surface to prevent the stop protrusion from being crushed by the mold. It is preferable to have a part.

According to the through sleeve for a wall of the present invention, since the through sleeve is formed by combining the first and second sleeves to be expandable and contracted in the longitudinal direction, the length of the through sleeve can be adjusted according to the spacing between the molds, so that the through sleeve can be used. The scope can be further expanded.

In addition, since the through sleeve is composed of two sleeves divided into the first and second sleeves as above, the ends of the first and second sleeves are opened, so that the first and second sleeves corresponding to both ends of the through sleeve are opened. It is possible to integrally mold the first and second plugs at each end, and thus the production efficiency of the first and second sleeves and further through the through sleeves can be further improved.

In addition, the first and second sleeves are provided with fastening means such as locking protrusions or locking protrusions at opposite ends of the first and second sleeves, so that the first and second sleeves are free from each other when these locking protrusions or locking protrusions are separated by passing through each other. It is possible to expand and contract, and thus, unless the first and second sleeves are rotated relative to each other, the length of the through sleeve can be freely adjusted or handled without fear of separation of the first and second sleeves.

In addition, when an elastic member is interposed between the first and second sleeves, the elastic member is also compressed when the through sleeve is shrunk by external force in order to be placed in the installation position between the molds. The length of the through sleeve can be automatically adjusted to the mold spacing by simply removing the elastic member, and both ends of the through sleeve can be tightly fixed to the inner side of the formwork. Therefore, the installation work of the through sleeve Can be done more conveniently and efficiently. Of course, since the first and second sleeves have locking protrusions or locking projections formed at opposite ends of the first and second sleeves, separation of the first and second sleeves due to the elasticity of the elastic member may be prevented.

In addition, when moving the through sleeve to the installation position between the molds in the reduced state as above, if the stopping protrusion of the second sleeve is fastened to the locking jaw of the first sleeve, the penetration in the reduced state despite the repulsion of the elastic member Since the sleeve can be moved comfortably to the installation position, the convenience of operation can be further improved.

1 is a longitudinal sectional view showing a conventional through sleeve.
Figure 2 is an exploded perspective view showing another conventional through-sleeve.
3 is a side view of a through sleeve according to an embodiment of the present invention.
Figure 4 is an exploded perspective view of the through sleeve shown in Figure 3;

Hereinafter, a through sleeve for a wall according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The through sleeve of the present invention comprises a first sleeve 3 and a second sleeve 5 as shown by reference numeral 1 in FIGS. 3 and 4.

Here, the first sleeve (3) is a tube body that forms a through hole through the wall together with the second sleeve (5) when making a wall of a building by pouring concrete between the formwork, FIGS. 3 and 4 As shown in, it is fixed to the formwork before concrete pouring to form one end of the through hole. To this end, the first sleeve 3 faces a first cylindrical portion 31 having a hollow cylindrical shape to form one end of the through hole, and a second cylindrical portion 51 of both ends of the first cylindrical portion 31, and It consists of a first stopper 33 that ends the outer end. At this time, the first stopper 33 is formed in a disk shape and is integrally formed at the outer end of the first cylindrical part 31 to completely seal the outer end, but the first fixing pin 34 fitted into the mold If it can be formed, it is sufficient to have a shape extending radially inward from the outer edge of the first cylindrical portion 31.

The second sleeve 5 is a tube body that forms a through hole together with the first sleeve 3 when the wall is formed as above. As shown in FIGS. 3 and 4, the first sleeve 3 ) It is fixed to the formwork from the other side to form the other end of the hole. To this end, the second sleeve 5 faces the second cylindrical portion 51 of a hollow cylindrical shape to form the other end of the through hole, and the first cylindrical portion 31 of both ends of the second cylindrical portion 51 It consists of a second stopper 53 for closing the outer end. At this time, the second cylindrical portion 51 is inserted so that the first and second sleeves 5 can be stretched and contracted, as shown in FIGS. 3 and 4, so as to be movable on the inner peripheral surface of the first cylindrical portion 31. Further, the second stopper 53 is similarly formed in a disk shape and is integrally formed at the outer end of the second cylindrical portion 51, so that the outer end may be completely sealed. However, if the second stopper 53 can also be formed with a second fixing pin 54 that is inserted into the mold and fixed, it will be formed in a form extending radially inward from the outer edge of the second cylindrical part 51. I can.

In this way, the first and second sleeves 3 and 5 coupled to each other so as to be relatively movable in the longitudinal direction so that the through sleeve 1 can be stretched and contracted may be coupled to each other in various ways, for example, to enable sliding. .

In particular, it is preferable that the first and second sleeves 3 and 5 are coupled to be relatively movable by screwing, as shown in FIGS. 3 and 4. To this end, as shown in the first sleeve 3, a locking protrusion 35 in the form of a female thread is formed on the inner peripheral surface of the end toward the second cylindrical portion 51 like a nut. In this case, the locking protrusion 35 may be formed of a single or multi-line screw, and may be in the form of a plurality of protrusions arranged along the single or multi-line spiral. In addition, as shown in the second sleeve 5, a locking protrusion 55 in the form of a male thread is formed on the outer peripheral surface of the end facing the first cylindrical portion 31 like a bolt. In this case, the locking protrusion 55 may be formed of a single or multi-threaded screw, as shown in FIG. 4, and may be formed in the form of a plurality of protrusions arranged along the single or multi-threaded line. Therefore, the locking protrusion 35 and the locking protrusion 55 are screwed together with male and female screws, and when formed in a multi-threaded structure, the first and second sleeves 3 and 5 can be moved relative to each other quickly.

However, for example, it is irrelevant if the lead angle of the thread is small because the lead of the locking protrusion 55 matches the lead angle, but when the locking protrusion 55 has a multi-threaded thread, the lead is 3 to 4 times the pitch and the lead angle As this increases, during the process of manufacturing the second sleeve 5 by molding, when the mold is opened, the thread located at the boundary between the upper and lower or left and right molds, that is, the locking protrusion 55 is crushed due to the teeth of the mold, As described above, it is preferable to chamfer the corresponding threaded portion of the second cylindrical portion 51 in the longitudinal direction along the outer circumferential surface to remove the chamfered portion 57 without a thread. On the other hand, the locking protrusion 35 of the first sleeve 3 is mold-opened while the core is spirally rotated during molding, so that even if the lead angle is large, the screw thread is not damaged due to the mold during mold opening, and thus, a chamfered portion is not required.

In this way, the first and second sleeves 3 and 5 are rotated in the circumferential direction like a pair of nuts and bolts through the screwing of the locking protrusion 35 and the locking protrusion 55 and move relative to the longitudinal direction. , After the engaging projection 35 is further rotated and separated beyond the locking protrusion 55, the first sleeve 3 can slide freely along the outer circumferential surface of the second sleeve 5. As described above, once the locking protrusion 35 enters beyond the locking protrusion 55, the first and second sleeves 3 and 5 are freely moved relative to each other so that the entire length of the through sleeve 1 can be expanded and contracted. In addition, even if the first and second sleeves 3 and 5 move freely apart from each other as above, the locking protrusion 55 is caught by the locking protrusion 35, so that the locking protrusion 55 is attached to the locking protrusion 35 There is no need to worry about separation of the first and second sleeves 3 and 5 as long as they are not rotated. However, in this case, there is inconvenience in that the operator must directly adjust the entire length of the through sleeve 1 according to the spacing between the molds.

Meanwhile, as shown in FIG. 4, the through sleeve of the present invention may include an elastic member 7.

As shown, the elastic member 7 can be mounted on the first sleeve 3 through the elastic member mounting portion 71 formed on the inner surface of the first plug 33, but is not shown. , It may be mounted on the second sleeve 5 through another elastic member mounting portion formed on the inner surface of the second plug 53. To this end, the elastic member mounting portion 71 may be formed in a form extending from the center of the inner surface of the first stopper 33 along the axis of the first sleeve 3 as shown, as well as the elastic member (7) can be formed in any form as long as it can be mounted. In this embodiment, it is in the form of a tube extending along the axis, and in this case, the elastic member 7 is inserted into and mounted on the elastic member mounting portion 71.

When the elastic member 7 mounted on the inner surface of the first plug 33 as described above is reduced by an external force in the state in which the first and second sleeves 3 and 5 are mutually coupled, That is, when the gap between the first and second plug portions 33 and 53 is narrowed, elastic compression is performed and a repulsive force against external force is obtained. Therefore, if the through sleeve (1) reduced by the external force is placed at a predetermined position between the molds and the external force is removed, the first and second sleeves (3, 5) are automatically elongated by the restoring force of the elastic member (7). Thus, the through sleeve 1 is elongated until both ends are in close contact with the inner side of the formwork.

However, as above, in order to reduce the through sleeve 1 and place it in the installation position between the molds, the operator must continuously apply an external force to maintain the contracted state of the through sleeve 1, the elastic member 7 The greater the repulsive force, the greater the inconvenience of the worker. Accordingly, as shown in FIGS. 3 and 4, the second sleeve 5 has a stop protrusion 56 formed on the outer circumferential surface of the second cylindrical portion 51 opposite the first cylindrical portion 31. Accordingly, when the through sleeve 1 is reduced by an external force and the stop protrusion 56 is screwed or caught on the locking protrusion 35, the repulsive force of the elastic member 7 is received by the fastening thereof. Since it is possible, the operator can comfortably move the through sleeve 1 to the installation position between the molds in a reduced state without exerting great force.

At this time, the stop protrusion 56 prevents the stop protrusion 56 from being crushed due to the teeth of the mold for the same reason as the stopping protrusion 55, that is, when opening the mold in the process of forming the second sleeve 5 , At least one pair of chamfered portions 15 is formed by removing the stop protrusion 56 in the longitudinal direction along the outer circumferential surface of the second cylindrical portion 51. At this time, the stop protrusion 56 is continuous with the chamfered portion of the locking protrusion 55.

Now, the operation of the through sleeve for a wall according to a preferred embodiment of the present invention will be described as follows.

The through sleeve 1 for a wall of the present invention is installed at a predetermined position between the molds before making the wall by pouring concrete between the molds, thereby generating a through hole in the poured and cured wall.

Therefore, the through sleeve 1 is disposed between the formwork before concrete pouring, so that the first and second sleeves 3 and 5 form a single tube through fastening of the locking protrusion 35 and the locking protrusion 55 do. Therefore, the through sleeve 1 expands and contracts through the relative movement of the first and second sleeves 3 and 5, and when the locking projection 35 and the locking projection 55 continue to be fastened, the first and second sleeves The coupling of the locking protrusion 35 and the locking protrusion 55 is separated while the (3,5) is coupled. After the locking protrusion 35 and the locking protrusion 55 are separated inward as above, the locking protrusion 35 can freely move in the longitudinal direction along the outer circumferential surface of the second sleeve 5, so that the through sleeve 1 The total length of can be easily adjusted according to the spacing between the molds. In addition, once the locking protrusion 35 passes through the locking protrusion 55 and enters inward, the locking protrusion 35 and the locking protrusion 55 engage each other unless the first sleeve 3 is rotated. It is possible to prevent separation of the second sleeves (3,5). However, in this case, even if the first and second fixing pins 34 and 54 are mounted on the inner side of the mold, the through sleeve 1 cannot be in close contact between the molds, and the length of the through sleeve 1 is also difficult to maintain. It won't be easy.

Accordingly, the first and second sleeves 3 and 5 are provided with an elastic member 7 between each other, as shown in FIG. 4, when the through sleeve 1 is reduced as above, the elastic member (7) is also compressed so that it has a repulsive force against external force. Therefore, in order to fit the through sleeve 1 between the molds as above, the operator must maintain the reduced state by the external force, and when the external force is removed when it comes to the installation position between the molds, the resilience force of the elastic member 7 It is elongated so that the first and second plug portions 33 and 53 at both ends are in close contact with the inner side of the mold and are strongly fixed between the molds. However, in this case, since the operator has to move the through sleeve 1 to the installation position between the molds while maintaining the reduced state by applying an external force, the installation work is very difficult and difficult.

Accordingly, as shown in FIGS. 3 and 4, the second sleeve 5 has a stop protrusion 56 formed on the outer circumferential surface of the opposite end of the locking protrusion 55. Therefore, in the through sleeve 1, the stop protrusion 56 may be coupled to the locking protrusion 35 in a reduced state by an external force, and the elastic member ( It is possible to withstand the repulsive force of 7) by fastening the stopping protrusion 56 and the locking projection 35. As a result, the operator can comfortably move the through sleeve 1 to the installation position between the molds in a reduced state without exerting great force.

In this way, after simply interposing the through sleeve (1) that elastically adheres to the installation position between the formwork, concrete is poured and cured in the formwork to make a wall having through holes by the through sleeve (1).

1: through sleeve 3: 1st sleeve
5: second sleeve 7: elastic member
31: first cylindrical portion 33: first stopper
34: first fixing pin 35: locking jaw
51: second cylindrical portion 53: second stopper
54: second fixing pin 55: stopping protrusion
56: stop protrusion 57: chamfered portion
71: elastic member mounting portion

Claims (7)

A first sleeve (3) which is fixed to a formwork when making a wall by pouring concrete to form one end of the through hole in the wall; And
Including; a second sleeve (5) that is elastically coupled to the first sleeve (3) so as to be fixed to a formwork when making a wall by pouring concrete to form the other end of the through hole in the wall.
The first sleeve (3) is integrated to close the first cylindrical portion (31) in a hollow cylindrical shape to form one end of the through hole, and the opposite side end of the second cylindrical portion (51) of the first cylindrical portion (31) It consists of a first stopper 33 formed of,
The second sleeve 5 closes the second cylindrical portion 51 having a hollow cylindrical shape to form the other end of the through hole, and the opposite side end of the first cylindrical portion 31 of the second cylindrical portion 51 Consisting of a second stopper 53 integrally formed,
The first sleeve 3 includes a locking protrusion 35 formed only at an end portion of the inner circumferential surface of the first cylindrical part 31 on the side of the second cylindrical part 51,
Since the second sleeve 5 includes a locking protrusion 55 formed only at an end portion of the outer circumferential surface of the second cylindrical part 51 on the side of the first cylindrical part 31,
After the locking protrusion 35 and the locking protrusion 55 are coupled, after the locking protrusion 35 is separated and entered beyond the locking protrusion 55, the first sleeve 3 is placed on the outer peripheral surface of the second sleeve 5 Through-sleeve for walls, characterized in that the sliding movement along the. delete The method according to claim 1,
The locking protrusion (35) and the locking protrusion (55) is a through sleeve for a wall, characterized in that formed in a structure of a multi-line thread. The method according to claim 1,
It is mounted on the elastic member mounting portion 71 formed on the inner surface of any one of the first and second plug portions 53, and the first and second sleeves 3 and 5 are mutually coupled to the external force A through sleeve for a wall, characterized in that it comprises an elastic member (7) elastically compressed together when reduced by the. The method according to claim 3 or 4,
In the process of forming the second sleeve 5, when opening the mold, the second cylindrical portion 51 prevents the locking protrusion 55 from being crushed by the mold. A through sleeve for a wall, characterized in that it comprises at least a pair of chamfered portions (15) from which the group (55) has been removed. The method of claim 4,
The second sleeve 5 is formed on an outer circumferential surface of the second cylindrical part 51 opposite the first cylindrical part, and when the first and second sleeves 3 and 5 are reduced, the locking projection ( Through sleeve for wall, characterized in that it comprises a stop protrusion (56) to be caught in 35). The method of claim 6,
During the process of forming the second sleeve 5, when the mold is opened, the second cylindrical portion 51 is stopped in the longitudinal direction along the outer circumferential surface to prevent the stop protrusion 56 from being crushed by the mold. A through sleeve for a wall, characterized in that it comprises at least a pair of chamfered portions (15) from which the protrusions (56) are removed.

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