JP2015073999A - Piping member end part temporary fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve working efficiency for securing a root interval, by sufficiently fixing an end part of two piping members when extending by welding-joining.SOLUTION: An end part outside surface of one piping member 2 is fixed by one clamp member 6 in a state of allowing a butting end surface of the one piping member 2 to abut on a plate surface of a root interval adjusting member 4 installed in a clamp device 1. An end part outside surface of the other piping member 3 is fixed by the other clamp member 8 in a state of allowing a butting end surface of the other piping member 3 to abut on the plate surface of the root interval adjusting member 4 from the opposite side of the one piping member 2. The root interval adjusting member 4 is detachably provided by engaging with a notch groove 25 formed in a plurality of projection parts 7 projected from the one clamp member 6.

Description

  The present invention relates to a pipe member end temporary fixing device used for holding ends of pipe members when the ends of the pipe members are butted and welded together.

  For example, inside the factory, pipes are provided for supplying and discharging fluid to and from various installed equipment, but these pipes have different diameters depending on the application. ing. These pipes are usually formed by connecting pipe members having the same diameter. In addition, piping in the factory extends in a straight line in the vertical and horizontal directions, or bends at right angles, depending on the arrangement of equipment installed in the factory and the space in the building. .

  For this reason, when constructing piping work in which piping members manufactured to the required length are sequentially joined and laid, piping in which one end is fixedly supported by equipment, building walls, etc. in the building space One end of a straight tubular or curved tubular (elbow or cheese) piping member is joined to the other end of the member.

  As for joining of the end portions of the piping members, there is conventionally known a method in which the end portions of the piping members to be joined are concentrically but welded in a state where a necessary route interval is maintained. When joining the piping members by this butt welding method, the two piping members are temporarily fixed in the space until the two piping members to be joined are brought into contact with each other and the temporary welding is completed. The method is conventional.

  Therefore, various devices (pipe member end temporary fixing devices) for fixing the pipe members in order to butt-weld the pipe members in the space portion as described above have been proposed.

  In the conventional pipe member end temporary fixing device, one end of two pipe members to be fixed is fixed with an openable / closable clamp member (frame body), and the other pipe member is The fixing bolts (universal bolts) screwed into the plurality of arm members (slide bars) attached so as to extend from the clamp member to the other clamp member side are rotated and tightened so as to press inward from the outer diameter direction. The first clamping member (clamper) and the second clamping member (which can be opened / closed) are used to fix both ends of the two piping members at the ends of the two piping members to be fixed. There is a method (Patent Document 2) by a method of fixing with a clamper).

Japanese Utility Model Publication No. 61-191593 JP 2011-152666 A

  In the piping member end temporary fixing device described in Patent Document 1, each arm member and the clamp member are provided as separate bodies, and the arm member is fitted in the sliding groove provided on the outer wall of the clamp member. In combination, they are attached by bolts through a slide long hole provided in the arm member. Further, a root interval holding member (spacer bolt) is screwed into each arm member. Therefore, when temporarily fixing pipe members together, the clamp member is first fastened and fixed so that the clamp member is uniformly crimped to the end of one pipe member, and then each arm member is held along the sliding groove to maintain the root interval. The member is slid so that the tip is located at the groove root portion, and is fixed with a bolt at that position. Next, by tightening the fixing bolt of each arm member while holding the tip of the route interval holding member so as to abut the groove root portion of the other piping member, the end of the route interval holding member is positioned between the two pipe members. Both the piping members are temporarily fixed in a state where they are pushed in and a predetermined route interval is secured.

  However, in the apparatus described in Patent Document 1, in order to ensure a predetermined route interval that is uniform at a plurality of locations, the route interval holding member of each arm member is aligned so as to be positioned in the groove route portion. Furthermore, when removing the fixing bolt after maintaining a predetermined route interval, the operation opposite to the above operation must be performed for each arm member, which takes time and effort. There is difficulty in workability. In particular, the arm member can be slid by fitting in the sliding groove of the clamp member, and further, the position of the tip of the route interval holding member is visually aligned at a position separated from the groove root portion. After that, by tightening the fixing bolt of the arm member, the tip of the root interval holding member will be pushed between the two pipe members, so if the first visual alignment is not performed accurately at all points, it is appropriate Therefore, there is a concern that the route interval is not secured and the work efficiency is lowered.

  Further, in the piping member end temporary fixing device described in Patent Document 2, both the piping member first clamp member and the second clamp member are left open, and the first route interval holding member ( A route interval adjusting bolt is turned and screwed inwardly from the outer diameter direction so that the tip end portion of the first route interval holding member abuts on the route surface of the end portion of one of the piping members. Next, at a position away from the first route interval holding member, the second route interval holding member is turned and screwed inwardly from the outer diameter direction, and the tip of the second route interval holding member is connected to one pipe. The first clamp member is closed and fixed in contact with the root surface of the end portion of the member. Next, the end portion of the other piping member is placed on the second clamp member, and the root surface of the end portion of the other piping member is placed on the tip portion of the first route interval holding portion and the second route interval holding member. In this state, the second clamp member is closed and fixed so that both the piping members can be temporarily fixed in a state where a predetermined route interval is secured.

  In the device described in Patent Document 2, the route surface of the other piping member is brought into contact with the route surface of one piping member, the first route interval holding member, and the second route interval holding member in advance. Since the first route interval holding member and the second route interval holding member are brought into contact with each other, an appropriate route interval can be ensured every time, and a predetermined route interval is ensured. For this purpose, the route interval holding member is adjusted for each of the first route interval holding member and the second route interval holding member.

  Therefore, the present invention makes it possible to sufficiently fix the two piping members to be fixed, and further develops the one described in Patent Document 2 so that the operation of setting the pipe member end face once is performed. Therefore, it is intended to provide a pipe member end temporary fixing device capable of ensuring a uniform route interval.

  In order to solve the above-described problem, the present invention corresponds to claim 1 and clamps and temporarily fixes the ends of the two piping members when the ends of the two piping members are butted and joined. In the pipe member end temporary fixing device, the base plate and one clamp part of the pair of clamp parts having a semicircular arc shape are fixed to one end side of the base plate, and the one end part and the other of the one clamp part And the other end of the one clamp part and the other end of the other clamp part are connected by the pair of clamp parts. One clamping member fastened via a fastener so that the end side of one piping member can be fixed, and a plurality of projections from the pair of clamping parts of the one clamping member toward the axial end side of the piping member Multiple protrusions A plurality of projecting portions, and at least two projecting portions projecting from each of the pair of clamp portions, and engaging with the notched grooves of the two projecting portions. A route interval adjusting member that is detachable, and provided on the opposite side of the one clamp member across the route interval adjusting member, and fixes the end side of the other piping member of the two piping members And a clamping member end temporary fixing device including the other clamping member.

  In the above configuration, the other clamp members include at least three projecting portions projecting from the pair of clamp portions of the one clamp member, and screwed with each projecting portion facing the tip toward the axis of the piping member. And a fixing bolt to be joined.

  As another configuration of the above configuration, the other clamp member is disposed on the other end side of the base plate so as to face the one clamp member, and one of the pair of clamp portions having a semicircular arc shape is the base plate. The one end of the one clamp part and the one end of the other clamp part are pivotally attached to each other via a connector, and the other one of the one clamp part is fixed to the other end side of the one clamp part. It is set as the structure fastened via a fastener so that an edge part and the other end part of the other clamp part can fix the edge part side of the other piping member by said pair of clamp part.

  Further, in the above configuration, the route interval adjusting member is composed of a plate member formed with an inner edge extending in parallel by a concave notch from one end to the other end, and the inner edge of the plate member is Notched grooves formed on both sides of one projecting portion projecting from the other clamp portion of the clamp member, and both sides of a guide block attached to one clamp portion of one clamp member It is configured to be detachably engaged with the notch groove and to be arranged in a direction orthogonal to the axial direction of the two piping members to be fixed.

  According to the pipe member end temporary fixing device of the present invention, a plate-like member having inner edges extending in parallel is used as a route interval adjusting member, and a projecting portion or guide provided in the clamp portion. Since both sides of the two piping members to be temporarily fixed are plate-shaped because they can be placed in the direction perpendicular to the axial direction of the clamping device by engaging with the notch grooves on the side of the block. It can be brought into contact with the surface of the member over a wide range, and the route interval adjusting member can serve as a positioning guide mechanism for both end surfaces of the two piping members. It can be made uniform over the entire circumference. Furthermore, since the route interval adjusting member is configured to be detachable from the clamping device, after clamping the end portions of both pipe members with the first clamp member and the second clamp member, the route interval adjusting member is By removing from the clamp device, the uniform route interval between the two pipe members formed by the thickness of the plate-like member of the route interval adjusting member can be maintained uniformly.

1 shows a first embodiment of a piping member end temporary fixing device of the present invention, (a) is a front view, (b) is a side view from the AA direction of (a), and (c) is (a). It is a top view from the BB direction. It is a schematic front view of a route space | interval adjustment member. It is a cutting | disconnection top view from CC direction of FIG.1 (b). It is a schematic front view which shows the open state of the 1st clamp member in 1st Embodiment shown to Fig.1 (a). It is a schematic plan view which shows the case where the piping member edge part temporary fixing apparatus in 1st Embodiment is used for the piping member of another shape. It is a schematic front view which shows the modification of 1st Embodiment of the piping member edge part temporary fixing apparatus of this invention. The 2nd Embodiment of the piping member end part temporary fixing apparatus of this invention is shown, (a) is a front view, (b) is a side view from DD direction of (a), (c) is (a It is a top view from the EE direction. The 1st clamp member of the piping member end part temporary fixing apparatus in 2nd Embodiment is shown, (a) is a schematic plan view which shows the protrusion part from the other clamp part and the other clamp part, (b) FIG. 3 is a schematic plan view showing one clamp and a guide block from one clamp part. It is a schematic front view which shows the state which the 1st clamp member of the piping member edge part temporary fixing apparatus in 2nd Embodiment opened. The other example of the engagement system of the route space | interval adjustment member in 1st Embodiment is shown, (a) is a schematic front view of a clamp apparatus, (b) is a partial plane which shows three protrusion parts of (a) FIG.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  1 to 4 show a first embodiment of a pipe member end temporary fixing device according to the present invention. As pipe members to be joined, ends of a straight pipe member 2 and an elbow pipe member 3 are shown. The example applied to temporarily fixing the edge part of both the piping members 2 and 3 at the time of abutting and joining parts is shown.

  That is, the piping member end temporary fixing device of the present invention temporarily fixes the straight tubular piping member 2 and the curved tubular piping member 3 (in the present embodiment, an elbow-shaped piping member will be described as an example). Clamps for both pipe members 2 and 3 that are suitable for joining, and are configured to clamp and fix the ends of the straight tubular pipe member 2 to be joined and the other elbow pipe member 3. A device 1 and a route interval adjusting member 4 as a route interval holding spacer for holding the route interval of the groove portion formed at the abutting portion of the end portions to be joined of the pipe members 2 and 3 are provided. It has been configured.

  The clamp device 1 is attached to one end of a base plate 5 bent in a U-shape, and clamps and fixes the end of a straight tubular piping member 2 as a first clamp member 6 as one clamp member. A plurality of projecting portions 7 projecting from one side surface of the first clamp member 6 toward the mating elbow-shaped piping member 3 to be joined, and the projecting portions 7 as constituent elements. It comprises a second clamp member 8 as another clamp member that fixes the end of the pipe member 3.

  Specifically, as shown in FIG. 1 (b), the base plate 5 is formed in a U shape having a bent portion in which the one end side 9a and the other end side 9b are bent upward.

  Further, as shown in FIG. 1 (a), the first clamp member 6 is composed of two semicircular arc shaped clamp portions 10a and 10b for clamping and fixing the end portion of the straight tubular piping member 2. The one clamp part 10a is fixed to the inner surface of one end side 9a of the base plate 5. One end of the other clamp part 10b is pivotally attached to one end of the one clamp part 10a via a connector 12, and the other end is connected to the other end of the one clamp part 10a via a fastener 15. And can be fastened.

  That is, as shown in FIG. 4, one clamp portion 10a has a semicircular arc shape, and is configured to open upward so that the piping member 2 can be placed on the inner circular arc surface 11, and the clamp portion 10a Is fixed to the inner surface of the one end side 9a of the base plate 5 by welding or other methods. In addition, the height of the one end side 9a and the other end side 9b of the base plate 5 is the same as the inner peripheral surface of the arcuate surface 11 of the clamp portion 10a so that it can be placed when the piping members 2 and 3 are temporarily fixed. Preferably, the height is set. Further, as shown in FIGS. 1A and 4, the other clamp portion 10b has a hinge shaft 14 in the hole of the connecting member 13 provided at one end portion of the clamp portion 10b and one end portion of the one clamp portion 10a. It is pivotally mounted so as to be openable and closable (rotatable) through a connecting tool 12 that passes through.

  On the other hand, a locking bracket 21 is provided at the other end of the clamp portion 10b. When the clamp portion 10b is closed, the locking bracket 21 is attached to the bracket 17 provided at the end of the one clamp portion 10a. The clamp portions 10a and 10b are fastened by the fastener 15 via both brackets 17 and 21. In this fastened state, the outer peripheral surface of the end portion of the piping member 2 is held by the circular arc surface 11 on the inner peripheral side of one clamp portion 10a and the circular arc surface 11 on the inner peripheral side of the other clamp portion 10b. The piping member 2 can be stably fixed. Furthermore, a handle 16 that is convenient for carrying the pipe members 2 and 3 to a place where they are temporarily fixed is provided on the outer peripheral arc surface of the other clamp portion 10b.

  The fastener 15 formed on the other end of the pair of clamp portions 10a and 10b is, for example, a bracket 17 in which a groove is formed so as to have a bifurcated structure, as shown in FIGS. And a fastening bracket 21, a pin 18 passed through a hole provided in the bracket 17, and a hex bolt or the like that is screwed into the pin 18 and is rotatably attached to the inside or outside of the bifurcated structure. And a bolt 19. Thus, by closing the clamp portion 10b and fitting the fastening bolt 19 into the groove of the locking bracket 21, the hexagonal portion at the top of the hexagon bolt is locked to the locking bracket 21 and rotated. The clamp portion 10a and the clamp portion 10b are configured to be fastened. Further, when the fastening bolt 19 is fitted into the groove and tightened at one end of the locking bracket 21 of the clamp portion 10b, the fastening bolt 19 is pulled from the groove of the locking bracket 21 by being caught. A locking projection 20 is formed so as not to come off. It should be noted that the fastening bolt 19 may be a hexagon bolt instead of a configuration in which the bolt 18 is threaded through and screwed to the pin 18, and a bolt comprising a bolt fixed to the pin 18 and a nut screwed into the bolt may be used. Of course it is good. In FIG. 4, details of the protruding portions 7 from the clamp portions 10 a and 10 b and the fasteners 15 are omitted for easy understanding.

  As shown in FIGS. 1A, 1B, and 1C, the second clamp member 8 is connected to each side surface of the clamp portions 10a and 10b constituting the first clamp member 6 (the clamp portions 10a and 10b are piped). When attached to the member 2, on the surface that is the end face side of the pipe member 2), for example, two locations of the clamp portion 10 a and one location of the clamp portion 10 b, in a total axial direction of the pipe member 2. The projecting portions 7 to be projected are screwed into the projecting side end portions of the projecting portions 7 from the outside to the screw holes 22 that are provided to penetrate toward the axial center position on the end side of the piping member 3. The fixing bolt 23 is adapted to be moved in the inner and outer direction (radial direction).

  In this embodiment, as shown in FIG. 1A and FIG. 3, one protruding portion 7 (referred to as 7 a for convenience of description) protrudes from the substantially central portion of one side surface of the clamp portion 10 b, and the clamp portion Two projecting portions 7 (referred to as 7b and 7c for convenience of explanation) project from a position sandwiching the projecting portion 7a in a plan view on one side surface 10a. Further, a guide block 25A extending in parallel with the two projecting portions 7b and 7c is provided between one end surface of the fixing portion of the clamp portion 10a to the one end side 9a of the base plate 5 and the other end side 9b of the base plate 5. Is provided. On the both sides or one side of the guide block 25A in the longitudinal direction (in the case of both sides shown in FIG. 3), the inner edge of the route interval adjusting member 4 made of a bifurcated plate member described later In this configuration, a notch groove 25 is formed for guiding and engaging with each other.

  Further, as shown in FIGS. 1A, 1B, and 1C, the protruding portion 7a provided on the clamp portion 10b is in the middle of the fixing bolt 23 screwed into the screw hole 22. A notch groove 25 for engaging the inner edge portion of the route interval adjusting member 4 with both side portions or one side portion of the position on the base end portion side (showing the case of both side portions in FIG. 1A). However, it is configured to correspond to the notch groove 25 of the guide block 25A.

  Each of the protruding portions 7 (7a, 7b, 7c) has a rectangular cross-sectional shape, and the inner peripheral surface of each protruding portion 7 is an end portion of the piping member 3 when the piping member 3 is disposed. It is provided so that the surface faces the axial center position on the side. Then, a fixing bolt 23 is screwed into the screw hole 22 formed at each protruding side end on the tip side of each protruding portion 7, and the leading end of the fixing bolt 23 is connected to each protruding portion 7. It protrudes inward from the inner peripheral surface.

  By rotating the fixing bolt 23 forward and backward, the fixing bolt 23 can be moved inward and outward by a screw action with the screw hole 22, and the piping member 3 is fixed by tightening each fixing bolt 23. become. Reference numeral 24 denotes a nut member screwed into the fixing bolt 23, and the screwing amount of the fixing bolt 23 can be adjusted by shifting the position of the nut member 24.

  The tip shape of each fixing bolt 23 is preferably a shape having a flat surface or a rounded shape so that the piping member 3 can be easily fixed. Further, as the fixing bolt 23, an example in which a bolt with a holed plate attached to the top of a butterfly bolt or a hexagon bolt is shown in the figure, but various bolts such as a hexagon bolt can be used. Various bolts may be combined and can be appropriately selected.

  Moreover, the method of projecting from the clamp portions 10a and 10b of the projecting portions 7 constituting the second clamp member 8 is not limited to a specific method, and is provided on one side surface of the clamp portions 10a and 10b. A method of fixing the end of each projecting portion 7 by welding or the like, or forming a through hole penetrating the side surface in the clamp portions 10a and 10b, and welding with each projecting portion 7 fitted in the through hole For example, other methods may be employed.

  As shown in FIGS. 1 (a), (b), (c), and FIG. 2, the route interval adjusting member 4 is connected to the piping members 2 and 3 by the first clamp member 6 and the second clamp member 8 of the clamp device 1. When clamping and fixing the end portion, it is for maintaining the root interval of the groove portion formed at the abutting portion between the end surface of the piping member 2 and the end surface of the piping member 3, and from one end central portion to the other end It is composed of a bifurcated plate member having a concave notch 26 to the side. The route interval adjusting member 4 is detachably attached to the clamping device 1 from one direction. Specifically, the route interval adjusting member 4 is arranged so that the inner edge 4a of the bifurcated plate member extends along the notch groove 25 formed in the protruding portion 7 (7a) on one side surface of the clamp portion 10b. After being engaged, it is pushed between the first clamp part 6 and the second clamp part 8, and into the notch groove 25 of the guide block 25A at a position of 180 degrees with the projecting part 7 (7a), It is configured by engaging the inner edge 4a. The route interval adjusting member 4 can be detached from the clamp device 1 by being pulled out in a direction opposite to the pushing direction, and can be freely attached to and detached from the clamp device 1.

  That is, in order to attach the route interval adjusting member 4 to the clamp device 1, the inner edge 4 a of the concave notch 26 of the bifurcated plate member constituting the route interval adjusting member 4 is formed as shown in FIGS. The route interval adjusting member 4 is pushed down by engaging with the notch grooves 25 formed on both sides of the projecting portion 7a projecting from the clamp portion 10b from above in the figure. Next, the inner edge 4a of the tip of the plate member is engaged with the notch groove 25 formed in the guide block 25A attached between the clamp portion 10a and the other end side 9b of the base plate 5 so that FIG. The route interval adjusting member 4 shown in (a) can be attached to the clamp device 1 in a state in which the movement in the horizontal direction and the front-rear direction (front and rear side direction) of the paper surface is restricted.

  The root interval adjusting member 4 may be fixed (held) to the clamp device 1 by locking the base end of the concave notch 26 of the plate member to the outer surface of the projecting portion 7a. In addition, the notch groove 25 formed on the side portion of the guide block 25A extends to the middle position of the side portion of the guide block 25A, and a locking portion is formed at the end of the notch groove 25. When the leading end of the route interval adjusting member 4 is guided and engaged with the notch groove 25 of the guide block 25A, the leading end of the route interval adjusting member 4 is locked to the end of the notch groove 25. You may make it contact and fix to. Further, as shown in FIG. 1 (b), the route interval adjusting member 4 has a configuration in which the tip on the other end side is bent in order to be easy to hold and remove easily from the clamping device 1. However, it may be a straight shape that is not bent.

  Next, in the case where temporary fixing is performed when the end portions of the straight tubular piping member 2 and the elbow-shaped piping member 3 are abutted and joined using the piping member end temporary fixing device of the present invention having the above-described configuration. The process will be described.

  When temporarily fixing both the piping members 2 and 3 with the end of the elbow-shaped piping member 3 butted against the end of the straight tubular piping member 2, first, as shown in FIG. The other clamp part 10b connected to one end part side of one clamp part 10a of the first clamp member 6 via the connecting tool 12 is rotated outwardly around the connecting tool 12 so that the clamp part 10a The other end side and the other end side of the clamp part 10b are opened.

  In addition, when making the clamp part 10b into the open state, since there exists a possibility that the route space | interval adjustment member 4 may remove | deviate from the clamp apparatus 1, it is preferable to remove the route space | interval adjustment member 4 beforehand.

  Next, the arc surface 11 on the inner peripheral side of the clamp portion 10a of the clamp device 1 in an open state is brought into contact with the outer surface of the end portion of the fixed (straight tubular) piping member 2 that has been added, The clamp part 10b is closed in this state, and the fastening provided on the other end of the clamp part 10a with the arcuate surface 11 on the inner peripheral side of the clamp part 10b in contact with the outer peripheral surface of the end part of the piping member 2 The fastening bolt 19 is rotated and fitted into the groove of the locking bracket 21 provided at the other end of the clamp portion 10 b, and the hexagonal portion at the top of the fastening bolt 19 is locked to the locking bracket 21. The protrusion 20 is locked. Here, even when the first clamp member 6 is in a closed state, the top bolt portion is loosely tightened to such an extent that it can move in the axial direction of the piping member 2.

  Next, the root interval adjusting member 4 is attached to the clamp device 1. The method of attaching the route interval adjusting member 4 to the clamping device 1 is as described above, with the concave notch 26 portion of the plate member being bifurcated by the concave notch 26 constituting the route interval adjusting member 4, A bifurcated plate member is formed in the notch groove 25 formed on both sides of the projecting portion 7a so as to line up the projecting portion 7a from one side surface of the clamp portion 10b constituting the second clamp member 8. The route distance adjusting member 4 is pushed down by engaging the inner edge 4a. Next, by engaging the inner edge 4a of the tip of the plate member with the notch groove 25 formed in the guide block 25A attached between one side surface of the clamp portion 10a and the other end side 9a of the base plate 5. Install. By doing in this way, since the root | route space | interval adjustment member 4 is latched and fixed to the clamp apparatus 1, while the movement of the root | route distance adjustment member 4 can be controlled, the wide range inside the clamp apparatus 1 is possible. In addition, the route interval adjusting member 4 can be positioned.

  After attaching and fixing the root interval adjusting member 4 to the clamp device 1, the clamp device 1 is attached to the piping member 2 by loosely tightening the hexagonal portion of the top of the fastening bolt 19 of the fastener 15. Since it is possible to move, the position of the clamping device 1 is moved, the butted end surface of the piping member 2 is brought into contact with the plate surface of the plate member of the fixed route interval adjusting member 4 and pressed strongly. Align with.

  After that, in the state where the butt end face of the piping member is pressed against the plate surface of the route interval adjusting member 4 and brought into contact with the plate surface, the hexagonal portion of the top of the fastening bolt 19 that has been loosely tightened is firmly tightened, thereby The circular arc surface 11 of each of 10a and 10b can be fixed by being crimped to the outer surface of the piping member 2. Moreover, since the piping member 2 is fixed by the first clamping member 6 of the clamping device 1 in a state in which the butted end surface of the piping member 2 is in contact with the plate surface of the route interval adjusting member 4, The interval adjusting member 4 also functions as a positioning guide for the piping member 2.

  Next, the butt end surface of the elbow-shaped piping member 3 to be butt welded to the piping member 2 is brought into contact with the plate surface of the route interval adjusting member 4 from the side opposite to the piping member 2 and pressed strongly.

  Next, in this state, the fixing bolt 23 screwed into each protruding portion 7 constituting the second clamp member 8 is rotated and tightened so that the fixing bolt 23 has a tip portion at the end of the piping member 3. Each is tightened to be brought into contact with the outer surface. As a result, the piping member 3 is clamped and fixedly supported by the second clamp member 8 in a state in which the butted end surface is pressed against the plate surface of the route interval adjusting member 4.

  In the above process, when the butted end surface of the elbow-shaped piping member 3 is pressed against the plate surface of the route interval adjusting member 4, the end side of the piping member 3 is connected to the other end side 9b of the base plate 5. After mounting on the upper end surface, the fixing bolt 23 of the second clamp member 8 may be tightened in a state where the butted end surface is pressed against the plate surface of the route interval adjusting member 4. By doing in this way, compared with the case where it does not place the end part side of piping member 3 on the upper end surface of other end side 9b of base plate 5, it is stable about making it contact with the plate surface of route interval adjustment member 4. Increases nature.

  Each of the piping members 2, 3 has the first clamping member 6 and the second clamping member 1 of the clamping device 1 in a state in which the butted end surfaces of the piping members 2, 3 are in contact with the plate surface of the route interval adjusting member 4. Since it is fixed by the clamp member 8, the end surfaces of the pipe members 2 and 3 can be brought into contact with a wide range of the route interval adjusting member 4, and both end portions of the pipe members 2 and 3 can be brought into contact with each other. Positioning can be performed easily and reliably.

  When the fixed-side piping member that has been added is the elbow-shaped piping member 3, the clamping device 1 is attached to the end of the elbow-shaped piping member 3, that is, the step opposite to the above-described step. The second clamp member 8 may be fixed, and then the first clamp member of the clamp device 1 may be fixed to the end of the straight tubular piping member 2 to be butt-joined. In this case, the second clamp member 8 is fixed to the end portion of the pipe member 3 while guiding the position of the end portion of the pipe member 3 with the route interval adjusting member 4 attached to the clamp device 1. It is preferable to do so.

  Next, the both ends of the pipe members 2 and 3 are temporarily fixed by the pipe member end temporary fixing device of the present invention, and then the route interval adjusting member 4 is removed from the clamp device 1. Thereby, since both piping is fixed in the state where the route interval adjusting member 4 is interposed, by removing the route interval adjusting member 4, the route of the groove portion of the end portion of both the piping members 2, 3 is removed. A space is formed.

  Through the above steps, the end portions of the piping members 2 and 3 are temporarily fixed by the clamp device 1 in a state where the straight tubular piping member 2 and the elbow-shaped piping member 3 are joined together so that they can be butt welded. In this state, the butt portions of the two pipe members 2 and 3 are temporarily welded. In the temporary fixing of the piping members 2 and 3, the adjustment of the route interval between the two piping members 2 and 3 may be performed by appropriately changing the thickness of the plate member of the route interval adjusting member 4 according to the desired route interval. The route interval can be adjusted freely, and welding can be performed while maintaining a desired route interval.

  When the necessary temporary welding between the piping members 2 and 3 is completed as described above, and it is no longer necessary to temporarily fix the clamping device 1 to the ends of the piping members 2 and 3, the clamping device 1 is connected to the piping member. First, the hexagonal portion at the top of the fastening bolt 19 of the fastener 15 of the first clamp member 6 is loosened. Next, the fixing bolt 23 constituting the second clamp member 8 is loosened. Thereafter, the fastening bolt 19 is detached from the locking bracket 21 of the clamp part 10b, thereby releasing the fastening of the clamp parts 10a and 10b of the first clamp member 6 and opening the clamp part 10b. By doing so, the clamp apparatus 1 can be removed from the piping members 2 and 3.

  Thus, according to 1st Embodiment of this invention, since the plate-shaped member is used as the root | route space | interval adjustment member 4, the both end surfaces of the two piping members 2 and 3 which are going to temporarily fix are wide-range. After being clamped with the first clamp member 6 and the second clamp member 8, both ends of the pipe members 2 and 3 can be brought into contact with each other and are detachable from the clamp device 1. By removing the route interval adjusting member 4 from the clamping device 1, the route interval between the two pipe members 2 and 3 can be made uniform as a whole, and in order to secure the route interval as in the prior art, a plurality of routes can be secured. Adjustment at the location is not necessary, and a substantially uniform route interval can be ensured by a single operation of abutting the piping members 2, 3, thereby improving work efficiency.

  In addition, the shape of the piping member in the case of using the piping member end temporary fixing device of the present invention is not limited to a straight tube shape and an elbow shape, but for example, as shown in FIG. You may make it use in the case of temporary fixation with a cheese-like piping member. In this case, the pipe member end temporary fixing device of the present invention shown as the first embodiment is used for each end of the cheese-like pipe member, and the pipe members are temporarily fixed and joined in the order described above. You just have to do it. Furthermore, the piping member end temporary fixing device of the present invention is not limited to the example of the combination of the described piping members, and although not illustrated, straight tubular piping members, elbow-shaped curved pipes, etc. You may make it use in the case of temporary fixing of members.

  FIG. 6 shows a modification of the first embodiment of the piping member end temporary fixing device of the present invention. In the same configuration as the clamping device 1 shown in the first embodiment, the configuration of the second clamping member 8 is shown. Is changed to a configuration suitable for temporarily fixing a pipe member having a large diameter.

  That is, the pipe member end temporary fixing device according to the present modification has a configuration similar to that of the first embodiment shown in FIG. 1A as shown in FIG. Instead of the configuration in which the number of the parts 7 is three, the configuration is such that five projecting parts 7 are provided. In FIG. 6, the handle 16 is omitted.

  Specifically, in the first embodiment, two projecting portions are provided in the same direction as the projecting portion 7a from one side surface of the clamp portion 10b so as to sandwich the projecting portion 7a projecting at one location of the clamp portion 10b. 7 (referred to as 7d and 7e for convenience of explanation) is projected, and a total of three projected portions are projected from one side surface of the clamp portion 10b. Similarly to the other projecting portions 7a, 7b, and 7c, the projecting portions 7d and 7e are configured to screw the fixing bolts 23 into the screw holes 22 penetrating inward and outward. Further, the configuration of the guide block 25A and the notch groove 25 attached between the fixing portion of the clamp portion 10a to the one end side 9a of the base plate 5 and the other end side 9b of the base plate 5 is the same as that of the first embodiment. Is omitted.

  Further, in this modification, the inner edge 4a of the concave notch 26 of the bifurcated plate member constituting the route interval adjusting member 4 is formed in the notch groove 25 formed on both sides of the projecting portion 7a. The route interval adjusting member 4 is attached by engaging the inner edge 4a of the concave plate member with the notch grooves 25 formed on both sides of the guide block 25A. By doing in this way, similarly to 1st Embodiment, since the root | route space | interval adjustment member 4 can be latched and fixed to the clamp apparatus 1, the movement of the root | route space | interval adjustment member 4 can be suppressed.

  According to this modification, the number of the protruding portions 7 constituting the second clamp member 8 is five, and the end of the piping member 3 is compared with the case where the number of the protruding portions 7 is three. This is effective when temporarily fixing a pipe member having a large diameter.

  Next, FIGS. 7 to 9 show a second embodiment of the piping member end temporary fixing device of the present invention. In the same configuration as the first embodiment shown in FIG. The shape of the projecting portion from the first clamp member 6 as the clamp member and the configuration of the second clamp member as the other clamp member are changed, and particularly the end portions of the straight tubular piping members It shall be suitable for temporary fixing.

  In the present embodiment, the description will focus on the differences from the configuration of the first embodiment, and the same components will be denoted by the same reference numerals and the description thereof will be omitted.

  That is, as shown in FIGS. 7B and 7C, the second embodiment of the pipe member end temporary fixing device of the present invention is different from the first embodiment shown in FIGS. 1A, 1B, and 1C. In the same configuration, a plurality of projecting portions 7 from one side surface of the clamp portions 10a and 10b of the first clamp member 6 and a fixing bolt 23 screwed to the projecting portion 7 are connected to the second clamp member. Instead of the configuration of 8, the end of the piping member is fixed by separately using a third clamping member 27 as another clamping member having the same configuration as the first clamping member 6. is there.

  Specifically, the third clamp member 27 of the clamp device 1 is for clamping and fixing the end portion of the straight tubular piping member 28, and is attached to the one end side 9 a of the base plate 5. As shown in FIG. 7 (b), it is attached to the other end side 9 b of the base plate 5 so as to face the clamp member 6.

  Similar to the first clamp member 6, the third clamp member 27 is composed of two semicircular arc shaped clamp portions 10 c and 10 d for clamping and fixing the end portion of the straight tubular piping member 28. One clamp portion 10c is fixed to the other end side 9b of the base plate 5 by means such as welding, and the other clamp portion 10d is pivoted at one end portion via one end portion of the clamp portion 10c and the connector 12. The other end is fastened to the other end of the clamp part 10c via a fastener 15. Since the structure of the connector 12 and the structure of the fastener 15 that connect the clamp portions 10c and 10d of the third clamp member 27 are the same as the structure of the first clamp member 6, the description thereof is omitted.

  On the other hand, the third clamp member 27 is different from the first clamp member 6 in that it does not include a protruding portion that protrudes on one side surface of the clamp portion 10d and does not include a handle 16. Other configurations are the same as those of the first clamp member 6.

  In the present embodiment, the first clamp member 6 is different from the first embodiment in the number and shape of the protruding portions 7 from one side of the pair of clamp portions 10a and 10b. That is, in the first embodiment, a total of three protrusions, one protrusion 7a from one side of the clamp part 10a of the first clamp member 6 and two protrusions 7b, 7c from one side of the clamp part 10b. In contrast to the protrusions 7a, 7b, and 7c, in the present embodiment, a total of two protrusions protrude from one side surface of the clamps 10a and 10b of the first clamp member 6. It is installed. In addition, each projecting portion 7 in the first embodiment is formed with a screw hole 22 for screwing the fixing bolt 23 in order to serve as the second clamp member 8. As shown in FIGS. 8A and 8B, the projecting portion 7 does not function as a clamp member, so that no screw hole is formed.

  Specifically, of the two protruding portions, one on the clamp portion 10b side is a protruding portion 7f, one on the clamp portion 10a side is a guide block 25A, and both are shown in FIG. As shown in the figure, they are provided so as to protrude from the respective one side surfaces of the clamp portions 10a and 10b to the third clamp member 27 side so as to be positioned at 180 degrees and overlap each other in plan view. . The guide block 25A from the clamp portion 10a is provided so as to extend to contact with one side surface of the clamp portion 10c, to be connected to the clamp portion 10c, and to protrude from the clamp portion 10c. Further, the projecting portion 7f from the clamp portion 10b does not extend to the clamp portion 10d, but extends to the clamp portion 10d side from the middle of the distance between the clamp portion 10b and the clamp portion 10d. Yes.

  Of course, the length of the projecting portion 7f is not determined, and the length of the projecting portion 7f from the clamp portion 10b may be up to a length contacting one side surface of the clamp portion 10d.

  Further, in the projecting end portion side of the projecting portion 7f from the clamp portion 10b and the substantially intermediate portion of the guide block 25A from the clamp portion 10a, at positions overlapping each other in plan view, FIG. As shown in b), a notch groove 25 is formed so as to be thinner than other portions. In the present embodiment, the notch groove 25 is formed over the entire circumference of the specific position because the projecting portion 7f and the guide block 25B are cylindrical, but the first groove in the first embodiment Similarly to the notch grooves formed in the projecting portion 7a having a rectangular cross section from the clamp portion 10b of the clamp member 6 and the guide block 25A having a rectangular cross section, the notch grooves 25 may be formed only on both sides.

  Other configurations in the clamp device 1 and the configuration of the route interval adjusting member 4 are the same as those in the first embodiment, and the description thereof is omitted.

  Next, a process in the case of performing temporary fixing when the ends of the straight tubular piping members 2 and 28 are brought into contact with each other using the piping member end temporary fixing device of the present embodiment having the above-described configuration will be described. . In addition, also in this process, when it is the same process as 1st Embodiment, description of the process is abbreviate | omitted and it demonstrates focusing on a different process.

  First, the first clamp member 6 of the clamp device 1 is attached to the fixed-side (one straight tubular) piping member 2 that has been added. This attachment process is the same as in the case of the first embodiment and is omitted.

  Next, the root interval adjusting member 4 is attached to the clamp device 1. The root interval adjusting member 4 is attached to the clamping device 1 in such a manner that the concave notch 26 of the bifurcated plate member constituting the route interval adjusting member 4 is shown from above in the drawings as shown in FIGS. A bifurcated plate member is formed in the notch groove 25 formed on both sides so as to line up the protruding portion 7f from the clamp portion 10b of the first clamp member 6 and the guide block 25A from the clamp portion 10a. It attaches by engaging the inner edge part 4a. It should be noted that the base end portion of the concave notch 26 of the plate member is the notch groove 25 on the outer peripheral surface side of the projecting portion 7f (if the notch groove 25 is formed only on both sides, the projecting portion 7f , The downward movement is restricted.

  After that, after attaching the route interval adjusting member 4 to the clamp device 1 and locking and fixing, the first clamp in a state in which the butted end surface of the piping member 2 is in contact with the plate surface of the plate member of the route interval adjusting member 4. The fastening bolt 19 of the fastener 15 of the member 6 is tightened to hold the first clamp member 6 of the clamp device 1 at the end of the piping member 2. In the present embodiment, since the first clamp member 6 and the third clamp member 27 are provided independently, the fastening bolt 19 of the fastener of the first clamp member 6 is used in this step. It is preferable to fix it tightly.

  Next, the end portion of the other straight tubular piping member 28 to be butt welded to the piping member 2 is placed on the arc surface on the inner peripheral side of the clamp portion 10c of the third clamp member 27 in an open state, It is made to contact | abut so that it may press on the plate surface of the route space | interval adjustment member 4 from the opposite side to the piping member 2. FIG. Thereafter, similarly to the operation of the first clamp member 6, the clamp portion 10 d is closed with the piping member 28 pressed, and the third clamp member is fastened by the fastening bolt of the fastener 15. As a result, the piping member 28 is clamped and fixedly supported by the third clamp member 27 in a state where the abutting end surface is pressed against the plate surface of the route interval adjusting member 4.

  Next, the pipe member end temporary fixing device of the present invention is attached to both ends of the pipe members 2 and 28 and temporarily fixed, and then the route interval adjusting member 4 is removed from the clamp device 1. As a result, since both the piping members 2 and 28 are fixed in a state where the route interval adjusting member 4 is interposed, by removing the route interval adjusting member 4, the end of the butted portion of both the piping members 2 and 28 can be opened. It becomes the state where the route interval of the front part is formed.

  Through the above steps, the end portions of the piping members 2 and 28 can be temporarily fixed with the clamping device 1 in a state where the ends of the piping members 2 and 28 are joined so that the end portions of the piping members 2 and 28 can be butt welded. In this state, the butt portions of both the piping members 2 and 28 are temporarily welded.

  When the necessary temporary welding between the piping members 2 and 28 is completed as described above, and it is no longer necessary to fix the clamping device 1 to the ends of the piping members 2 and 28, the first clamping member 6 is used. The clamping device 1 is removed from the piping members 2 and 28 by releasing the fastening state of the third clamping member 27 and then releasing the fastening state of the third clamping member 27.

  As described above, according to the second embodiment of the present invention, similarly to the first embodiment, a plate-like member is used as the route interval adjusting member 4, and each clamp portion 10a, 10b of the first clamp member 6 is used. Since it is made to engage with the notch groove 25 formed in the projecting portion 7 projecting from the two end surfaces of the two piping members 2 and 28 to be fixed can be brought into contact over a wide range. Furthermore, since it is configured to be detachable with respect to the clamp device 1, after the end portions of both the piping members 2 and 28 are clamped by the first clamp member 6 and the third clamp member 27, the route interval adjusting member 4 is changed. By removing from the clamp device 1, the route interval between the two piping members 2, 28 can be made uniform as a whole, and adjustment at multiple locations is not required to ensure the route interval as in the prior art. Become Work efficiency is improved because it ensures a substantially uniform root spacing an end face of the tubular member once the working operation pressed against the plate surface of the root gap adjusting member 4.

  In the second embodiment, the number of projecting portions 7 projecting from the clamp portions 10a and 10b is not limited to two. For example, as in the configuration described in the first embodiment, the clamps Two projecting portions 7 may be projected from the portion 10a. In this case, the manner of engagement between each projecting portion 7 and the route interval adjusting member 4 can be the same as in the first embodiment.

  As mentioned above, although embodiment of this invention was described, also in 2nd Embodiment, the shape of the piping member which it is going to fix is not only the case of straight tubular piping members, but a straight tubular piping member and elbow-shaped. You may make it use for fixation of piping members of various combinations, such as a piping member and a cheese-like piping member. Further, the present invention is not limited to the above-described embodiments. For example, in the embodiment shown in FIGS. 1 (a), (b), (C) to FIG. 4, and the embodiment shown in FIG. A route interval adjusting member is provided on the projecting portion 7a projecting on one side surface of the clamp portion 10b and on the outer side portion of the guide block 25A attached between the one side surface of the clamp portion 10a and the other end side 9b of the base plate 5. 4 shows a case where the notch groove 25 for engaging the inner edge 4a of the bifurcated plate member 4 is provided. As shown in FIGS. 10 (a) and 10 (b), the clamp portion 10a A notch groove 25 that engages with the bifurcated outer edge of the route interval adjusting member 4 may be provided on the side of the two projecting portions 7b and 7c that project from one side surface (note that 10 (a) and 10 (b), those shown in FIGS. One of those are denoted by the same reference numerals). Moreover, in each embodiment, although the route space | interval adjustment member 4 is attached and detached to the up-down direction of the clamp apparatus 1, it is formed in the position of the protrusion part 7 of the 1st clamp member 6, and this protrusion part 7. FIG. Depending on the orientation of the cutout groove 25, the route interval adjusting member 4 may be detachable in the left-right direction of the clamping device 1. Furthermore, in each embodiment, as a structure of the protrusion part 7, it was set as the structure protrudingly provided from one side surface of each clamp part 10a, 10b of the 1st clamp member 6, but each clamp part 10a is not from one side surface. , 10b may be attached and projected by various means such as screws and welding. Of course, various modifications can be made without departing from the scope of the present invention.

1 Clamping device 2, 28 Piping member (straight tubular)
3 Piping member (elbow shape)
4 Route interval adjustment member 5 Base plate 6 First clamp member (one clamp member)
7 (7a, 7b, 7c, 7d, 7e, 7f) Projection portion 8 Second clamp member (other clamp member)
9a One end side 9b The other end side 10a, 10b, 10c, 10d Clamp part 11 Arc surface 23 Fixing bolt 24 Nut member 25 Notch groove 25A Guide block 26 Notch 27 Third clamp member (other clamp member)

Claims (4)

In the piping member end temporary fixing device that clamps and temporarily fixes the end portions of the two piping members when the end portions of the two piping members are butted and joined,
A base plate;
One clamp part of the pair of clamp parts having a semicircular arc shape is fixed to one end side of the base plate, and one end part of the one clamp part and one end part of the other clamp part are connected via a connector. It pivots so that it can be opened and closed, and the other end of the one clamp part and the other end of the other clamp part can be fixed to the end part side of one piping member by the pair of clamp parts. One clamping member fastened via a fastener;
A plurality of projecting portions projecting from the pair of clamp portions of the one clamp member to the end side in the axial direction of the piping member;
Of the plurality of projecting portions, one projecting portion projecting on the other clamp portion and a guide block attached to the one clamp portion on the opposite side of the inner peripheral surface of the one projecting portion are formed respectively. The notched groove and
A root interval adjusting member that is detachably engaged with the projecting portion of the other clamp portion and the notch groove of the guide block of the one clamp portion and is positioned on one side of the one clamp member; ,
Another clamp member that is provided on the opposite side of the one clamp member with the route interval adjustment member interposed therebetween and fixes the end side of the other pipe member among the two pipe members. Piping member end temporary fixing device.   The other clamp members include at least three projecting portions projecting from a pair of clamp portions of one clamp member, and a fixing bolt that is screwed into each projecting portion with the tip end directed to the axis of the piping member, The piping member end temporary fixing device according to claim 1, comprising:   The other clamp member is disposed on the other end side of the base plate so as to face the one clamp member, and one of the pair of clamp portions having a semicircular arc shape is fixed to the other end side of the base plate. The one end portion of the one clamp portion and the one end portion of the other clamp portion are pivotally mounted via a connector so that the other end portion of the one clamp portion and the other clamp portion are connected to each other. The pipe member end temporary fixing device according to claim 1, wherein the other end portion is configured to be fastened via a fastener so that the end of the other pipe member can be fixed by the pair of clamp portions. .   The route interval adjusting member is composed of a plate member having an inner edge extending in parallel by a concave notch from one end to the other end, and the inner edge of the plate member is the other clamp of one clamp member. A notch groove formed on both sides of one projecting part projecting from the part and a notch groove formed on both sides of a guide block attached to one clamp part of one clamp member 4. The pipe member end temporary fixing device according to claim 1, wherein the pipe member end temporary fixing device is detachably engaged and arranged in a direction orthogonal to an axial direction of two pipe members to be fixed.

Images