JP4724027B2 - Fixed support device for vertical piping for air conditioning - Google Patents

Description

  The present invention is based on a wall surface of a building among air conditioning pipes such as refrigerant pipes arranged from an air conditioning outdoor unit installed on the roof of a building to a plurality of air conditioning indoor units installed on each floor. In particular, the present invention relates to a fixing support device for an air conditioning vertical pipe that is used when a predetermined portion of a vertical pipe arranged in the vertical direction is fixedly supported by a bracket or the like on a housing side.

  In the conventional air-conditioning vertical pipe fixed support device, the support cylinder fixed to the position corresponding to the fixed support of the air-conditioning vertical pipe in an externally fitted state, and can be fastened and fixed to the outer peripheral surface of the support cylinder. And a clamp fitting having a load receiving portion that can be engaged with the projection formed on the outer peripheral surface from the pipe axis direction, and the support cylinder is fixed to a portion corresponding to the fixed support of the vertical pipe. It is comprised from the some division | segmentation support body which can be mounted | worn from radial direction outer side (refer patent document 1).

  Further, the support cylinder is constituted by two divided supports that can be elastically deformed on the diameter-expanded side, and both the divided supports have a circumferential length at one end in the pipe axis direction of the outer periphery of the vertical pipe. The circumferential length at the other end in the pipe axis direction is larger than the half circumference of the surface and is smaller than the half circumference of the outer circumferential surface of the vertical pipe.

JP 2004-19688 A

In this conventional fixed support device for an air conditioning vertical pipe, for example, even when a support cylinder is fixedly attached to a location corresponding to the fixed support of an air conditioning vertical pipe coated with a cylindrical heat insulating material, the fixed support is provided. After removing only the heat insulating material present in the corresponding portion locally, a plurality of divided support members constituting the support cylinder are attached to the pipe portion exposed to the outside through the heat insulating material removing portion from the outside in the radial direction. In this state, each divided support is fixed to the vertical pipe by appropriate welding means such as brazing.
Therefore, like the conventional fixed support device, the insulation material existing from the position corresponding to the fixed support of the vertical pipe to the end is peeled off, and the support cylinder body fitted from the end of the pipe is fixed to the position corresponding to the fixed support. In addition, it is possible to quickly and easily perform the heat insulation coating process on the vertical pipe from which the heat insulating material has been peeled after the fixing operation of the support cylinder is completed.
And, when each divided support constituting the support cylinder is mounted at a position corresponding to the fixed support of the vertical pipe, it is possible to securely hold and hold each divided support in a state in which it is prevented from coming out radially outward. Although it can, at least one end of each rigid support that is configured to be larger than the half circumference of the outer peripheral surface of the vertical pipe until the opening width thereof is larger than the outer diameter of the vertical pipe Since it is necessary to be elastically deformed to the enlarged diameter side and to be externally fitted to the vertical pipe in this state, much labor is required for the fitting.

  The present invention has been made in view of the above-described actual situation, and the main problem is that the seat is caused by the weight drop of the vertical pipe with a reasonable modification of the support itself fixed to the vertical pipe for air conditioning. Fixing and supporting device for vertical piping for air conditioning, which can reduce the cost of fixing piping while preventing bending deformation and breakage, and can easily perform the work of mounting the support on the vertical piping with little effort Is to provide

A first characteristic configuration according to the present invention is based on a support fixed to a location corresponding to a fixed support of an air conditioning vertical pipe, and a protrusion that can be fastened and fixed to the outer surface of the support and protruded from the outer surface of the support. A vertical support pipe for air conditioning with a clamp fitting having a load receiving portion engageable from the direction of the pipe axis,
The support has a substantially semi-cylindrical shape or a substantially semi-circular shape having a circumferential length that is equal to or greater than the half circumference of the outer peripheral surface of the vertical pipe and an opening width that is equal to or greater than the outer diameter of the vertical pipe. A portion that is configured in a long cylindrical shape and that exceeds the half-circumferential length region of the outer peripheral surface of the vertical pipe that the support abuts at one or a plurality of locations in the pipe axial direction at both opening ends of the support And an elastic holding body that is elastically deformable radially outward to a retaining release position that allows contact with the vertical pipe from the radial direction and is attached to the vertical pipe.

  According to the above characteristic configuration, when the support is fixed to the outer peripheral surface of the vertical pipe by appropriate welding means such as brazing, the support itself has an opening width equal to or larger than the outer diameter of the vertical pipe. The support body can be easily mounted from the outside in the radial direction, and the outer circumferential surface of the vertical pipe with which the support body abuts can be attached. The elastic support members provided on both ends of the support body in contact with the ends exceeding the half-periphery length region are in contact with each other, thereby preventing the support body from coming out of the vertical pipe in the radial direction and simultaneously supporting the support body. Can be temporarily fixed and held at the fixed support position of the vertical pipe.

  In addition, since it is held and held by an elastic holding body having a rigidity lower than that of the support body, it is possible to easily perform the detaching operation as compared with the case where the elastic body is held and held by a vertical pipe. Since the vertical pipe and the support are integrated by fixing the peripheral edge of the substantially semi-cylindrical or substantially semi-long cylindrical support to the outer peripheral surface of the pipe by appropriate welding means such as brazing, the support is provided on the support. Even if the protrusions to be formed are substantially the same as the half circumference length of the outer peripheral surface of the vertical pipe, the weight drop of the vertical pipe can be prevented by the engagement between the protrusion of the support and the load receiving portion of the clamp fitting.

  Therefore, as a support fixed to the vertical pipe while preventing buckling deformation and breakage due to the weight drop of the vertical pipe, a substantially semi-cylindrical body or a substantially semi-long cylindrical body is used as a support. Since it is only necessary to prepare an elastic holding body for holding and holding the pipe, the fixing cost of the pipe can be reduced, and the mounting work of the support body to the vertical pipe can be easily performed with less labor. it can.

  According to a second characteristic configuration of the present invention, the two elastic holding members have both end portions of a leaf spring bent into a substantially semicircular shape or a substantially semielliptical shape that can be mounted along the outer surface of the support. In addition, the support is provided with positioning means for restricting movement of the leaf spring in the pipe axis direction.

  According to the above characteristic configuration, as the support fixed to the vertical pipe, only one substantially semi-cylindrical body or substantially half-long cylindrical body and a leaf spring for holding and holding the vertical pipe are prepared. Therefore, it is possible to promote a reduction in the cost of fixing the pipe and to prevent movement of the leaf spring mounted along the outer surface of the support body in the pipe axis direction by the positioning means. The body can be favorably temporarily held at the fixed support position of the vertical pipe.

  According to a third characteristic configuration of the present invention, the positioning means is configured by a locking recess in which a leaf spring formed at both opening ends of the support body can be engaged, and in the vicinity of both ends of the leaf spring. Is that a retaining portion that crosses the inside of the engaging recess from the outer surface side to the inner surface side of the support is formed by bending.

  According to the above characteristic configuration, the retaining portion formed by bending in the vicinity of both end portions of the leaf spring in the locking recess formed at both opening end portions of the support body is provided from the outer surface side of the support body to the inner surface. By engaging in a state of crossing to the side, it is possible to prevent not only the displacement movement of the leaf spring in the pipe axis direction but also the movement out of the radial direction outward.

  The 4th characteristic structure by this invention exists in the point by which the both ends of the leaf | plate spring which comprises the said elastic holding body are bent and formed in the arc shape.

  According to the above characteristic configuration, it is possible to facilitate the mounting work of the support body to the vertical pipe while securely holding the support body at the fixed support position of the vertical pipe.

  According to a fifth characteristic configuration of the present invention, the projection is formed by bulging and forming the intermediate portion of the support 1 in the pipe axis X direction outward in the pipe radial direction, and then crushing it from the pipe axis X direction. It is in the point integrally formed in the shape.

  According to the above characteristic configuration, the strength of the protrusion itself and the coupling force with the support body can be increased as compared with the case where the protrusion of another member is welded to the outer surface of the support body. While using a single half-cylindrical support, the vertical drop of the vertical pipe can be strongly prevented by the engagement between the protrusion of the support and the load receiving portion of the clamp fitting.

[First Embodiment]
1 to 10 show air conditioning pipes such as metal (copper) refrigerant pipes arranged from an air conditioning outdoor unit installed on the roof of a building to a plurality of air conditioning indoor units installed on each floor. A case in which a predetermined portion of a vertical pipe P arranged vertically along a wall surface of a building is fixedly supported on a mounting frame F (an example of a fixed portion) using grooved steel provided on the housing side. 1 shows a pipe fixing and supporting device used for a metal (copper) which can be attached to a fixed support portion of the vertical pipe P and is welded to a fixed support portion of the vertical pipe P by welding means such as brazing. A support 1, a bracket (an example of a fixing portion) 3 having a substantially L shape in plan view, which is fastened and fixed to a mounting frame F with a bolt 2 which is an example of a fixing connection means, and a connecting plate portion 3 </ b> A of the bracket 3. The support 1 fixed to each vertical pipe P is attached to the fastener 4 Is composed of a metal clamp bracket A to detachably fixedly supported through a bolt 4A · nuts 4B is an example.

As shown in FIGS. 5 to 9, the support 1 is composed of a plurality of types corresponding to the types of outer diameters of the vertical pipes P, and the center of each support 1 in the pipe axis X direction. After the portion is formed to bulge outward in the pipe radial direction, it is crushed from the direction of the pipe axis X so that it protrudes outward in the radial direction of the pipe in a semi-circular or semi-ellipse engagement protrusion. 1A is integrally formed.
Therefore, for example, the strength of the engagement protrusion 1A itself and the coupling force between the engagement protrusion 1A and the support body 1 are increased as compared with the case where the engagement protrusion 1A of another member is welded to the outer surface 1a of the support body 1. Therefore, while using one support body 1 having a substantially semi-long cylindrical shape to be described later, the weight drop of the vertical pipe P can be caused by the engagement hole that is a load receiving portion of the protrusion 1A of the support body 1 and the clamp fitting A. It can be strongly blocked by engagement with 8.

  And the said support body 1 can be mounted | worn from the radial direction outer side with respect to the fixed support equivalent location of the vertical piping P, and the circumferential direction length and vertical piping P which are a little larger than the half-circumferential length of the outer peripheral surface of the vertical piping P Are formed in a substantially semi-long cylindrical shape having an opening width W that is slightly larger than the outer diameter D of the outer diameter D, and two locations in the direction of the pipe axis X at both opening end portions 1B of the support 1, more specifically, the support 1 The half circumference of the outer peripheral surface of the vertical pipe P with which the support 1 abuts at each of the two positions corresponding to the center positions between the both end faces in the pipe axis X direction and the engaging projections 1A at both the opening ends 1B A pair of elastic holding bodies 5A for holding and supporting the support body 1 with respect to the vertical pipe P by abutting a portion exceeding the long region in a holding state, allowing the vertical pipe P to be detached from the radial direction. It is opposed to the release position so that it can be elastically deformed radially outward. To have.

  Both elastic holding bodies 5A facing each other in the opening width direction of the support 1 have both ends of a leaf spring 5 bent into a substantially semi-oval shape that can be mounted along the outer surface 1a of the support 1. In addition, the support 1 is provided with positioning means 6 for restricting movement of the leaf spring 5 in the direction of the pipe axis X.

  As shown in FIGS. 5 to 10, the positioning means 6 is constituted by a locking recess into which a leaf spring 5 formed at a spring mounting position at both opening end portions 1 </ b> B of the support 1 can be engaged. In the vicinity of the elastic holding body 5A that is both ends of the leaf spring 5, a retaining portion 5B that crosses the inside of the locking recess 6 from the outer surface 1a side to the inner surface 1b side of the support 1 is formed by bending. Further, both end portions of the leaf spring 5 constituting the elastic holding body 5A are bent into a semicircle or an arc shape close thereto.

  Then, a retaining portion 5B formed by bending in the vicinity of both end portions of the leaf spring 5 in a locking recess 6 formed at both end portions 1B of the opening 1 of the support body 1 is provided on the outer surface 1a of the support body 1. By engaging in the state of traversing from the side to the inner surface 1b side, it is possible to prevent not only the displacement movement of the leaf spring 5 in the pipe axis X direction but also the movement out of the radial direction outward.

  As shown in FIGS. 1 to 4, the clamp fitting A includes an arc-shaped or substantially arc-shaped clamp plate portion 7 </ b> A that can be applied along the outer surface 1 a of the support body 1, and a pipe diameter direction from both ends thereof. The clamp member 7 is provided with a mounting plate portion 7B that is integrally connected along the mounting plate portion 7B, and two mounting plate portions 7B are provided at two locations in the longitudinal direction with respect to the connecting plate portion 3A of the bracket 3. When a bolt insertion hole 7a for fastening and fixing with the bolt 4A and nut 4B of the fastener 4 is formed, and both the mounting plate portion 7B and the connecting plate portion 3A of the bracket 3 are tightened and fixed with the bolt 4A and nut 4B The support body 1 fixed to the vertical pipe P by appropriate welding means such as brazing is clamped and fixed by the clamp plate portion 7A whose diameter is reduced in accordance with the tightening and fixing operation.

  Further, at two places in the longitudinal direction of the connecting plate portion 3A of the bracket 3, there are elongated holes extending along the horizontal direction so that the mounting position of the clamp fitting A in the horizontal direction can be adjusted within a certain range. Bolt insertion holes 3a are formed, and the upper and lower side portions of the mounting plate portion 3B of the bracket 3 are spaced apart from the maximum vertical width of a plurality of types of mounting frames F such as C-shaped steel and channel material. A pair of flange portions 3C are formed in a bent state.

  At the center position in the width direction of the clamp member 7, it engages from the outside in the pipe radial direction with respect to the semi-ellipsoidal engagement protrusion 1 </ b> A of the support 1 fixed to the vertical pipe P. As shown in FIG. 1 to FIG. 4, each engagement hole 8 is formed in a part of the mounting plate portion 7 </ b> B. In this state, it is formed in a long and narrow slit shape along the entire circumference of the clamp plate portion 7A.

  And when attaching the predetermined location of the vertical piping P for air-conditioning to the connection board part 3A of the bracket 3 of a piping construction location, the clamp plate part 7A of the clamp member 7 by which opening operation was carried out adheres to the fixed support equivalent location of the vertical piping P After the outer cover is mounted on the support body 1 and the slit-like engagement hole 8 formed in the clamp member 7 is engaged with the engagement protrusion 1A of the support body 1 from the outside in the pipe radial direction. When both the mounting plate portions 7B of the clamp member 7 are fastened and fixed to the connecting plate portion 3A of the bracket 3 by the bolts 4A and nuts 4B of the fasteners 4, both the clamp plate portions 7A whose diameter is reduced in accordance with the tightening and fixing operation are vertically At the same time as holding and fixing the support 1 of the pipe P, the weight drop of the vertical pipe P can be reliably prevented by the contact between the periphery of the engagement hole 8 of the clamp member 7 and the engagement protrusion 1A of the support 1. .

  In the figure, reference numeral 9 denotes a cylindrical heat insulating material surrounding the vertical pipe P. Even when the support body 1 is fixed to the fixed support equivalent portion of the vertical pipe P, the heat insulating material 9 present at the fixed support equivalent location is shown. After removing only locally, the support body 1 is attached to the pipe portion exposed to the outside through this heat insulating material removal portion in a state of being held from the outside in the radial direction, and in this state, the entire periphery of the support body 1 is vertically piped It is fixed to P by appropriate welding means such as brazing.

[Other Embodiments]
(1) In the first embodiment described above, the support body 1 is provided with a circumferential length slightly larger than the half circumference of the outer peripheral surface of the vertical pipe P and an opening width W slightly larger than the outer diameter D of the vertical pipe P. The support body 1 is configured to have the same or substantially the same circumferential length as the half circumference of the outer peripheral surface of the vertical pipe P and the outer diameter D of the vertical pipe P. It may be configured in a semi-cylindrical shape or a substantially semi-cylindrical shape having an opening width W that is the same as or slightly larger than this.

  (2) In the first embodiment described above, a plurality of types corresponding to the type of the outer diameter D of the vertical pipe P are prepared as the substantially semi-long cylindrical support 1, but the vertical pipe P having a large weight is used. When both are mixed, a substantially half-long cylindrical support body 1 and a conventional support cylinder body that can be divided into a plurality of parts in the circumferential direction may be used in combination.

  (2) In the first embodiment described above, the two elastic holding members 5 </ b> A provided in the opening width direction of the support 1 are formed in a substantially semi-oval shape that can be mounted along the outer surface 1 a of the support 1. Although the two end portions of the bent plate spring 5 are configured, the two elastic holding members 5A may be configured by spring materials such as different plate springs.

(4) In the first embodiment described above, as the clamp fitting A, an arc-shaped or substantially arc-shaped clamp plate portion 7A, and a mounting plate portion integrally connected from both ends along the tube radial direction. Although the clamp member 7 provided with 7B was used, for example, a semicircular arc-shaped or substantially semicircular arc-shaped clamp plate portion that can be applied along the outer surface of the support 1, and a tube radial direction from one end thereof A pair of left and right clamp members composed of integrally attached mounting plate portions may be used.
In this case, it is preferable that the other end portions of both the clamp plate portions are provided with an engagement connecting portion that detachably engages and connects both of them in a state where they can be opened and closed on the enlarged diameter side and the reduced diameter side.
As the clamp fitting A, any structure may be adopted as long as it has a load receiving portion 8 that can be engaged with the projection 1A formed on the outer surface of the support 1 from the pipe axis direction. May be.

(4) In the first embodiment described above, the elastic holding bodies 5A such as leaf springs that can be elastically deformed radially outward are provided at two locations in the pipe axis X direction at both opening end portions 1B of the support body 1. However, you may provide this elastic holding body 5A in the one or three or more places of the both ends 1B of the said support body 1 in the piping axis line X direction.
Further, as the elastic holding body, it is in contact with a portion exceeding the half circumference region of the outer peripheral surface of the vertical pipe P with which the support body 1 comes into contact, and is allowed to be detached from the vertical pipe P in the radial direction. A synthetic rubber or the like can be used in addition to the leaf spring as long as it can be elastically deformed radially outward to the retaining release position.

The perspective view at the time of attachment which shows 1st Embodiment of the fixed support apparatus of the vertical piping for air conditioning of this invention Perspective view when both clamp fittings and support are separated Cross-sectional front view at the part passing through the center of the clamp fitting Exploded perspective view just before installation on vertical piping Front view of support with leaf spring assembled Side view of support with leaf spring assembled Plan view of a support with a leaf spring assembled Front view of support Plan view of support Side view of leaf spring

Explanation of symbols

A Clamp metal fitting P Vertical pipe for air conditioning W Opening width X Pipe axis 1 Support 1A Engagement protrusion 1B Open end 1a Outer surface 5 Leaf spring 5A Elastic holding body (end)
5B Locking part 6 Positioning means (locking recess)
7A Load receiving part (locking part)

Claims (5)

Loads that can be fastened to the outer surface of the support that is fixed to the location corresponding to the fixed support of the vertical pipe for air conditioning and that can be engaged with the protrusions that are formed on the outer surface of the support from the pipe axis direction. A fixing support device for an air conditioning vertical pipe provided with a clamp fitting having a receiving part,
The support has a substantially semi-cylindrical shape or a substantially semi-circular shape having a circumferential length that is equal to or greater than the half circumference of the outer peripheral surface of the vertical pipe and an opening width that is equal to or greater than the outer diameter of the vertical pipe. A portion that is configured in a long cylindrical shape and that exceeds the half-circumferential length region of the outer peripheral surface of the vertical pipe that the support abuts at one or a plurality of locations in the pipe axial direction at both opening ends of the support Fixing the vertical piping for air conditioning, in which an elastic holding body that is elastically deformable radially outward is provided to a retaining release position that allows contact with the vertical piping and allows removal from the radial direction in the radial direction. Support device.   The elastic holding body is configured with both end portions of a leaf spring bent into a substantially semicircular shape or a substantially semielliptical shape that can be mounted along the outer surface of the support body, and the support body includes: The fixed support device for an air conditioning vertical pipe according to claim 1, wherein positioning means for restricting movement of the leaf spring in the pipe axis direction is provided.   The positioning means is composed of a locking recess into which a leaf spring formed at both opening ends of the support body can be engaged, and supports the inside of the locking recess in the vicinity of both ends of the leaf spring. The fixed support device for an air conditioning vertical pipe according to claim 2, wherein a retaining portion that crosses from the outer surface side to the inner surface side of the body is bent.   The fixed support apparatus of the vertical piping for air conditioning of Claim 2 or 3 by which the both ends of the leaf | plate spring which comprises the said elastic support body are bent and formed in the arc shape. 5. The protrusion is integrally formed by forming an intermediate portion of the support 1 in the pipe axis X direction outwardly in the pipe radial direction and then crushing it from the pipe axis X direction. The fixed support apparatus of the vertical piping for air conditioning of any one of these.

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