JP2019168092A - Hose coupling and hose fixing member - Google Patents

Abstract

Provided is a hose joint capable of efficiently performing a connecting operation without using a separately prepared fastening tool when connecting two hoses such as a fire hose. A hose fixing member (16) of a first hose joint (10) connects a first to a third segment (16a to 16c) to form one ring, and a first fire hose (31) is connected to a hose mounting portion. Fixed to. The first to third segments 16a to 16c are provided with first and second handle portions 17A and 17B, and the first and second handle portions 17A and 17B are rotatable outward, and are rotatable. By doing so, it is in a standing state. The first hose joint 10 is brought into contact with the second hose joint 20, and the two handle portions 17 </ b> A and 17 </ b> B in the upright state are gripped and rotated in the circumferential direction, so that the first hose joint 10 is in the second position. The hose joint 20 is connected. [Selection diagram] Fig. 1

Description

  The present invention relates to a hose joint for connecting, for example, a fire hose and a hose fixing member thereof.

  For example, as disclosed in Patent Document 1, a hose joint for connecting two fire fighting hoses has no distinction between males and females and is a pair of hoses configured by two joints having the same structure. Joints are known. The hose joint is configured such that each joint is attached to each end of two fire fighting hoses, and these joints are connectable.

  Since the work of connecting fire hoses is performed for fire fighting activities such as fires, it is often performed urgently. Therefore, by using a hose joint as described above, when connecting a fire hose, the step of searching for the hose end portion to which the male joint is attached and the hose end portion to which the female joint is attached is omitted. Can do. As a result, the working efficiency of hose connection is improved.

JP 2007-333107 A

  In the above example, when connecting a hose joint attached to a fire hose having a diameter exceeding 150 mm, it is common to use a fastening tool such as a spanner. In this case, it is necessary to keep a fastening tool. In an emergency, when the place where the fastening tool is installed is away from the place where the fire hose is connected, it takes time to prepare the fastening tool. As a result, there is a possibility that the time until the connection of the fire hose is completed becomes longer.

  The present invention has been made to solve the above-described problems, and the object thereof is to efficiently use, for example, a separately prepared fastening tool when connecting two hoses for fire fighting. It is to be able to perform the connecting work.

  In order to achieve the above object, the hose joint according to the present invention is a substantially cylindrical shape through which fluid can flow, and a hose attachment portion to which a hose can be attached is provided at one axial end, A plurality of segments removably attached to the joint body, and connecting the plurality of segments in the circumferential direction to form one annular member, and the hose is attached to the hose attachment portion by the annular member. It is configured to be fixed. In the hose joint, the joint body has a connecting portion connectable to another joint, and the connecting portion is integrally provided so as to be adjacent to the hose attachment portion in the axial direction. Two handle portions extending along the circumferential direction are attached to the axial end surfaces of the two segments at intervals in the circumferential direction, and the two handle portions are centered on the circumferential end portions adjacent to each other. The two handle portions are pivotable, and when the two handle portions are pivoted, they are in a standing state extending radially outward. The two standing handle portions are in contact with each other to form one handle pair, and the connecting portion Is brought into contact with the other joint, and the handle portion in the standing state is gripped and rotated in the circumferential direction, whereby the connecting portion and the other joint are connected.

  Moreover, in one aspect according to the present invention, the annular member is constituted by three segments having the same circumferential length, and each of the two segments is provided with two handle portions. Handle pairs are configurable.

  In one aspect of the invention, the axial end surface of the segment is provided with an engaging portion capable of protruding in the axial direction, and the handle portion has a recess at a position corresponding to the engaging portion. When the engaging portion is engaged with the recess, the accommodation state of the handle portion is maintained.

  The hose joint according to the present invention is composed of two joints through which fluid can flow, and each of the joints has a substantially cylindrical shape, and the hose attachment portion to which the hose can be attached has one axial direction. A joint main body provided at an end, and a plurality of segments removably attached to the joint main body, and connecting the plurality of segments in the circumferential direction to form one annular member; The hose is configured to be fixed to the hose attachment portion by an annular member. In the hose joint, each joint body has a connecting portion that can be connected to each other, and the connecting portion is integrally provided so as to be adjacent to the hose attachment portion in the axial direction. A plurality of claw portions projecting in the axial direction are provided at intervals in the circumferential direction, and a claw portion is provided with a groove portion extending in the circumferential direction at the axial end of each of the joints. Two handle portions extending along the circumferential direction are attached to an axial end surface of at least one of the plurality of segments at intervals in the circumferential direction, and the two handle portions are adjacent to each other. The two handle portions are turned upright and extend in the radially outward direction by rotating the two handle portions, and the two handle portions in the raised state come into contact with each other to form one handle. Pair The claw portion of one of the two joints is inserted into the groove portion of the other joint in the axial direction, the handle in the standing state is gripped, and tightened in the circumferential direction. The claw portion moves in the circumferential direction in the groove portion, and the claw portion is configured to fit in the groove portion.

  Moreover, the hose fixing member of the hose joint according to the present invention has a plurality of segments that can be attached to and detached from the cylindrical hose joint, and constitutes a single ring by connecting the plurality of segments in the circumferential direction. The hose is surrounded and fixed to the hose joint. In the hose fixing member, two handle portions extending along the circumferential direction are attached to an axial end surface of at least one of the segments at intervals in the circumferential direction, and the two handle portions are close to each other. The two handle portions are turned upright and extend in the radially outward direction by rotating the two handle portions, and the two handle portions in the raised state come into contact with each other to form one handle. The hose joint and the other joint are connected by forming a pair, bringing the hose joint into contact with another joint, gripping the handle in the standing state, and rotating the handle in the circumferential direction. It is comprised so that.

  According to the present invention, for example, when two fire hoses are connected, it is possible to efficiently perform the connection work without using a separately prepared fastening tool. Furthermore, when the handle is not in the standing state, it is attached to the segment for fixing the hose in an axially laid state, so that when the connection operation is not performed, the handle can be prevented from interfering with other members. . As a result, the fire hose can be used safely. Moreover, the rigidity of the handle portion can be increased by attaching the handle portion to the highly rigid segment.

It is a front view which shows the state which the hose for fire fighting was attached to each of the two hose couplings which concern on this invention, and two hose couplings were connected, and a handle | steering-wheel part shows an accommodation state. It is a front view in which the 1st hose for fire fighting is attached to the 1st hose coupling of Drawing 1, and a handle part shows an accommodation state. FIG. 2 is a side view of the first hose joint as viewed from the left in FIG. 2. FIG. 3 is a perspective view showing a state in which two handle portions in FIG. 2 are in an upright state to constitute a handle pair. It is a front view which shows three segments of FIG. 2, and a handle | steering-wheel part shows an accommodation state. It is a side view when the hose fixing member of FIG. 5 is viewed from the left side, and virtually shows the standing state of the handle. FIG. 7 is a side view showing a state where a handle portion is removed from the segment of FIG. 6. It is a front view which shows the coupling main body of the 1st hose coupling of FIG.

  Hereinafter, an embodiment of a hose coupling according to the present invention will be described with reference to the drawings (FIGS. 1 to 8). In the present embodiment, as shown in FIG. 1, two hose joints having the same structure (first hose joint 10 and second hose joint 20) are connected in the axial direction so that fluid can flow therethrough, A first fire hose 31 is attached to the first hose joint 10, and a second fire hose 32 is attached to the second hose joint 20.

  The 1st hose coupling 10 and the 2nd hose coupling 20 in this embodiment are the same members which have the same shape. Thus, the structural features described for the first hose coupling 10 also have a second hose coupling 20.

  First, the structure of the first hose joint 10 will be described. As shown in FIGS. 1 to 3, the first hose joint 10 includes a joint body 11 and a hose fixing member (annular member) 16. As shown in FIG. 8, the joint body 11 is a cylindrical member and includes a flow path through which a fluid can circulate. One end in the axial direction (the left end in FIG. 8) The hose attachment part 12 to which the 1st fire hose 31 is detachably attached is provided in the opposite axial direction edge part (right side edge part of FIG. 8). Is provided. The first fire hose 31 is attached to the hose attachment portion 12 shown in FIG. 8, and the state shown in FIG. 2 is obtained.

  As shown in FIG. 8, the hose attachment portion 12 has an axial end that is larger in diameter than the axial intermediate portion, and further prevents the first fire hose 31 from sliding. It has a convex part 12a. The convex portion 12a protrudes outward in the hose radial direction and extends along the circumferential direction. The first fire hose 31 is attached to the hose attachment portion 12 in a state of covering from the outside in the hose radial direction. That is, the hose attachment portion 12 is inserted into the first fire hose 31. The first fire hose 31 is fixed to the hose attachment portion 12 by the hose fixing member 16. A fixing method using the hose fixing member 16 will be described later.

  The connecting portion 13 is formed integrally with the hose attachment portion 12 and is provided at an end portion in the axial direction of the joint body 11. The connecting portion 13 in this example has twelve claw portions 14, twelve groove portions 15 corresponding to the respective claw portions 14, and a protruding portion 15a adjacent to the claw portion 14 in the circumferential direction. Further, the connecting portion 13 includes a locking mechanism 19.

  As shown in FIG. 3, the twelve claw portions 14 are arranged at equal intervals in the circumferential direction, that is, every 30 degrees, and each claw portion 14 is arranged on the joint body 11 as shown in FIG. 8. It protrudes in the axial direction from the axial end (left end in FIG. 8). In this example, the root of the claw portion 14 is disposed at a position slightly shifted in the axial direction on the opposite side (right side in FIG. 8) from the left end (contact surface 11a) in FIG. That is, a part of the claw portion 14 on the inner side in the hose radial direction overlaps the outer peripheral surface of the connecting portion 13. The contact surface 11a is a surface that contacts the second hose joint 20 when the second hose joint 20 is coupled.

  Moreover, as shown in FIG. 8, the axial direction front end surface 14a of the nail | claw part 14 is a plane orthogonal to an axial direction. Further, the claw portion 14 includes an inclined surface 14b on the distal end side that inclines outward in the hose radial direction from the end on the axially distal end surface 14a toward the flat outer surface 14c of the claw portion 14, and the outer surface 14c. A base-side inclined surface 14d that inclines inward in the hose radial direction as it goes toward the base of the claw portion 14 is provided. Further, the claw portion 14 has a root-side flat surface 14 e extending from the root-side inclined surface 14 d toward the outer peripheral surface of the joint body 11.

  As shown in FIG. 8, the groove portion 15 is provided on the inner side in the hose radial direction of each claw portion 14. The groove portion 15 is recessed in the circumferential direction from one circumferential end surface of the claw portion 14. As shown in FIG. 4, the groove 15 is recessed clockwise from the end face in the counterclockwise direction in FIG. Moreover, as shown in FIG.4 and FIG.8, the hose radial direction inner side of the groove part 15 is opening. In this example, the axial distance between the tip side surface 15b and the root side surface 15c facing each other in the axial direction inside the groove portion 15 becomes smaller toward the back side in the circumferential direction (clockwise circumferential direction in FIG. 3). . In the present embodiment, the root side surface 15c is formed so as to be flush with the contact surface 11c. That is, the axial positions of the root side surface 15c and the contact surface 11c are the same.

  Moreover, the groove part 15 is comprised so that the protrusion part (not shown) of the 2nd hose coupling 20 can be inserted. The protruding portion of the second hose joint 20 is inserted into the groove portion 15 of the first hose joint 10, and further advances in the circumferential direction toward the circumferential end portion inside the groove portion 15. And the base side surface 15 c and is fitted into the groove 15.

  As shown in FIGS. 3 and 4, the protruding portion 15 a of the first hose joint 10 is adjacent to each claw portion 14 in one circumferential direction (counterclockwise direction in FIG. 3). In the present embodiment, the protruding portion 15a is disposed on the axially root side of the claw portion 14 with respect to the groove portion 15, and is counterclockwise from one circumferential end surface (counterclockwise end surface in FIG. 3) of the claw portion 14. It protrudes in the direction of rotation. The end surface (left end surface in FIG. 8) in the axial direction of the protruding portion 15a is formed to be flush with the contact surface 11a and the base side surface 15c of the groove 15a.

  The hose radial width of the protruding portion 15 a is smaller than the hose radial width of the claw portion 14. Further, the hose radial width of the protrusion 15 a is equal to or smaller than the hose radial width of the groove 15. In this example, the hose radial outer surface of the projecting portion 15 a is disposed slightly radially inward of the hose radial outer surface 15 d of the groove 15.

  The amount (axial width) of the protruding portion 15a protruding in the axial direction is set to be slightly smaller than the axial width in the vicinity of the inlet of the groove (not shown) of the second hose coupling 20, and the second hose coupling 20 It is set to be slightly larger than the axial width on the back side of the groove portion. Here, the axial width of the groove portion 15 is an axial distance between the tip side surface 15b and the root side surface 15c facing each other in the axial direction described above. As described above, the protrusion 15 a can be inserted into the groove near the inlet of the groove of the second hose joint 20, and is opposed at the circumferential end in the groove of the second hose joint 20. It is sandwiched between the tip side and the root side. Thereby, the protrusion 15 a is fitted into the groove of the second hose joint 20. Further, in this example, the circumferential length of the protrusion 15 a is shorter than the circumferential length of the groove 15 of the first hose joint 10 and the groove of the second hose joint 20.

  Further, a gap S is provided between the protruding portion 15a and the claw portion 14 adjacent in the opposite circumferential direction (clockwise direction in FIG. 3). The circumferential length of the gap S is set to be substantially equal to the circumferential length of the claw portion 14.

  The locking mechanism 19 is provided on one claw portion 14 and includes a stopper 19a and a torsion coil spring 19b. The stopper 19a is disposed on the side surface in the circumferential direction of the claw portion 14, and the spring 19b is attached to the vicinity of the root of the claw portion 14 with a bolt (not shown) and connected to the stopper 19a. The stopper 19a is rotatable around a bolt that attaches the torsion coil spring 19b to the claw portion 14, and has a protruding state extending outward in the hose radial direction and a locking state extending in the axial direction.

  When the second hose joint 20 is connected to the first hose joint 10, the stopper 19 a in the locked state includes the claw portion 14 of the first hose joint 10 provided with the stopper 19 a and the stopper 19 a. It is arrange | positioned between the nail | claw part 24 of the 2nd hose coupling 20 adjacent to, and it can prevent that the nail | claw parts 14 and 25 move to the circumferential direction.

  Next, the hose fixing member 16 will be described. As shown in FIGS. 3 and 6, the hose fixing member 16 is an annular member, and has three arc-shaped segments (a first segment 16a, a second segment 16b, and a third segment 16c). is doing. The hose fixing member 16 constitutes one annular ring by connecting the first to third segments 16a to 16c in the circumferential direction.

  Each of the first to third segments 16a to 16c is a highly rigid member formed of a metal material having an arc shape with a central angle of 120 degrees. As shown in FIGS. 5 and 7, the first to third segments 16 a to 16 c are provided with fastening portions 16 f for connecting the segments 16 a to 16 c and fastening them with bolts 37. The fastening portion 16f is disposed at the circumferential end of the outer peripheral surfaces of the segments 16a to 16c and has a concave shape that is recessed from the outer peripheral surface inward in the hose radial direction, and a through-hole penetrating in the circumferential direction is formed inside the concave shape. Is formed.

  For example, the fastening portion 16f at one circumferential end of the first segment 16a and the fastening portion 16f at one circumferential end of the second segment 16b are fastened. Specifically, the bolt 37 is passed through the through hole of each fastening portion 16f and tightened with a nut, whereby the fastening portion 16f of the first segment 16a and the fastening portion 16f of the second segment 16b are fastened. Similarly, the first segment 16a and the third segment 16c are fastened, and the second segment 16b and the third segment 16c are fastened. An annular hose fixing member 16 is configured by fastening each fastening portion 16f.

  The annular hose fixing member 16 is disposed so as to surround the first fire hose 31 attached to the hose attachment portion 12 from the outside in the hose radial direction. At this time, the hose fixing member 16 is disposed closer to the connecting portion 13 than the convex portion 12 a of the hose attachment portion 12. Thereafter, the bolts 37 and nuts of the fastening portions 16f that connect the segments 16a to 16c are tightened, whereby the diameter of the hose fixing member 16 is reduced. As a result, when the inner periphery of the hose fixing member 16 presses the first fire hose 31, the first fire hose 31 is fixed to the hose attachment portion 12.

  Of the axial end surfaces of the hose fixing member 16, the axial end surface on which the connecting portion 13 is disposed (the connecting portion side axial end surface 16 e) is spaced axially with respect to the flat surface 14 e on the root side of the connecting portion 13. It is arranged with a gap.

  Each of the first segment 16a, the second segment 16b, and the third segment 16c in the present embodiment has a first handle portion 17A and a second handle portion 17B that constitute one handle pair 18. Yes. First, the first handle portion 17A constituting the handle pair 18 provided in the first segment 16a will be described.

  As shown in FIG. 4, the first handle portion 17A is attached to the connecting portion side axial end surface 16e of the first segment 16a. The first handle portion 17A is a metal member extending along the circumferential direction of the first segment 16a, and is a first shaft member orthogonal to the connecting portion side axial end surface 16e of the first segment 16a. It is configured to be rotatable about 17a. In other words, the first handle portion 17A has two states, that is, a housing state that extends along the circumferential direction of the first segment 16a and a standing state that protrudes in the hose radial direction with respect to the first segment 16a. be able to.

  The first shaft member 17a is attached to a shaft attachment portion 16h provided on the connecting portion side axial end surface 16e shown in FIG. The shaft mounting portion 16h in this example is provided with, for example, a bearing, and the first shaft member 17a is mounted on the bearing.

  First, the accommodation state will be described. As shown in FIGS. 2, 5, and 6, the first handle portion 17 </ b> A in the accommodated state is disposed on the inner side in the hose radial direction than the outer peripheral surface of the first segment 16 a, and the hose diameter is larger than the outer peripheral surface. The state where it does not protrude outward in the direction is maintained. The connecting portion side axial end face 16e is provided with an engaging portion 16g that can protrude in the axial direction from the connecting portion side axial end face 16e. A through hole 17c is provided on the side surface of the first handle portion 17A that faces the connecting portion side axial end surface 16e. The through hole 17c in this example is a through hole penetrating in the axial direction, but may be a concave portion having a bottom. When the first handle portion 17A is in the accommodated state, the engaging portion 16g is inserted into the through hole 17c, and the accommodated state of the first handle portion 17A is maintained.

  The engaging portion 16g of this example is capable of reciprocating in the axial direction, and has a state of protruding from the connecting portion side axial end surface 16e and a state of not protruding from the connecting portion side axial end surface 16e. For example, a ball plunger or the like may be applied to the engaging portion 16g. In this case, when the side surface of the first handle portion 17A overlaps the ball plunger ball (not shown), the ball plunger ball does not protrude from the connecting portion side axial end surface 16e. . When the ball overlaps the opening of the through hole 17c, the ball protrudes from the connecting portion side axial end surface 16e and is inserted into the through hole 17c. As a result, the accommodation state of the first handle portion 17A is maintained.

  Subsequently, the standing state will be described. As described above, the first handle portion 17A is configured to be rotatable around the first shaft member 17a, and the distal end of the first handle portion 17A extends outward in the hose radial direction from the accommodated state. It can be rotated to move. At this time, the through hole 17c of the first handle portion 17A is disengaged from the engaging portion 16g provided on the connecting portion side axial end surface 16e. That is, when the operator grips and rotates the first handle portion 17A, the engagement between the through hole 17c and the engaging portion 16g is released, and the first handle portion 17A can be in an upright state. .

  Next, the second handle portion 17B will be described. The second handle portion 17B has the same structure as the first handle portion 17A. The second shaft member 17b of the second handle portion 17B is arranged so as to be adjacent to the first shaft member 17a of the first handle portion 17A with an interval in the hose circumferential direction. The distal end of the first handle portion 17A and the distal end of the second handle portion 17B are arranged at an interval in the hose circumferential direction with the first and second shaft members 17a and 17b interposed therebetween in the accommodated state. ing. That is, the accommodated first and second handle portions 17A and 17B are arranged extending in both directions in the hose circumferential direction around the first and second shaft members 17a and 17b.

  When the first and second handle portions 17A and 17B attached to the first segment 16a are in an upright state, the outer surfaces of the first and second handle portions 17A and 17B come into contact with each other. The abutting outer surface is a surface that faces the outer side in the hose radial direction when the first and second handle portions 17A, 17B are in the accommodated state, and a non-slip unevenness 17d is formed in the abutting portion.

  When the first and second handle portions 17A and 17B are rotated, the tips of the first and second handle portions 17A and 17B are rotated in the direction toward the outer side in the hose radial direction, and the first and second handle portions are The tips of 17A and 17B approach each other and the outer surfaces abut against each other. The first and second handle portions 17A and 17B in the standing state form a pair to form a handle pair 18. The handle pair 18 can be gripped by an operator and applied with a tightening force (rotational force).

  Similarly to the first segment 16a, the second segment 16b has a handle pair 18 constituted by the first and second handle portions 17A and 17B. The third segment 16c also includes two handle pairs 18 (FIG. 6).

  The second hose joint 20 is configured in the same manner as the first hose joint 10 and includes a connecting portion 23 and a hose fixing member 26. Similar to the hose fixing member 16 of the first hose coupling 10, the hose fixing member 26 includes a first segment 26a, a second segment (not shown), and a third segment 26c. The first to third segments 26a and 26c have a first handle portion 27A and a second handle portion 27B, and each segment 26a and 26c has the first and second handle portions 27A and 27B. One handle pair (not shown) is provided which is configured in a standing state.

  Then, the connection operation | work of the 1st hose coupling 10 and the 2nd hose coupling 20 is demonstrated.

  The first fire hose 31 is attached to the hose attachment portion 12 of the first hose joint 10 by the hose fixing member 16, and the hose attachment portion (not shown) of the second hose joint 20 is A second fire hose 32 is attached by a hose fixing member 26.

  The first and second handle portions 17A and 17B of the segments 16a, 16b, and 16c of the hose fixing member 16 of the first hose joint 10 are all in the accommodated state. The same applies to the first and first handle portions 27A and 27B of the second hose joint 20. From this state, the 1st hose coupling 10 and the 2nd hose coupling 20 are connected with the following procedures. In this embodiment, the connection work is performed by two workers.

  First, as shown in FIG. 3, the first and second handle portions 17A and 17B of the first and second segments 16a and 16b of the first hose joint 10 are raised and the two handle pairs 18 are moved. Constitute. Similarly, the second hose joint 20 also has two handle pairs with the handle portions 27A and 27B standing up.

  At this time, the handle pair 18 of the first segment 16a and the handle pair 18 of the second segment 16b of the first hose joint 10 protrude in the hose radial direction at a circumferential position that forms an angle of 120 degrees or close to each other. ing. The same applies to the two handle pairs of the second hose joint 20. At this time, the stoppers 19a and 29a of the locking mechanisms 19 and 29 of the first hose joint 10 and the second hose joint 20 are in a locked state.

  One operator grips the two handle pairs 18 protruding in the two directions of the first hose joint 10. The other operator grips the two handle pairs of the second hose joint 20.

  Next, the connecting portion 13 of the first hose joint 10 and the connecting portion 23 of the second hose joint 20 are arranged to face each other. At this time, it arrange | positions so that the latching mechanism 19 of the 1st hose coupling 10 and the latching mechanism 29 of the 2nd hose coupling 20 may correspond. Thereafter, the claw portion 24 in the connecting portion 23 of the second hose joint 20 is inserted in the gap S between the adjacent claw portions 14 of the first hose joint 10 in the axial direction. At this time, the axial front end surface of the projecting portion 15a of the first hose joint 10 and the axial front end surface of the second hose joint 20 abut, and the projecting portion 15a of the first hose joint 10 Similarly, the protrusion of the second hose joint 20 is disposed near the inlet of the groove 15 of the first hose joint 10.

  Further, when the claw portion 24 in the connecting portion 23 of the second hose joint 20 is inserted in the gap S between the adjacent claw portions 14 of the first hose joint 10 in the axial direction, the stopper of the first hose joint 10. The tip end surface in the axial direction of 19a is pressed in the axial direction by the claw portion 24 and is in an upright state. Similarly, the axial front end surface of the stopper of the second hose joint 20 is pressed in the axial direction by the claw portion 14 of the first hose joint 10 to be in an upright state.

  From this state, the first hose joint 10 and the second hose joint 20 are rotated in opposite directions. One hose joint may be fixed and the other hose joint may be rotated. The rotation direction is a direction in which the protruding portion 15 a of the first hose joint 10 enters the groove portion of the second hose joint 20. By rotating in this way, the protruding portion of the second hose joint 20 also moves in the direction of entering the groove portion 15 of the first hose joint 10.

  The handle pair 18 of the first hose joint 10 and the handle pair of the second hose joint 20 are clamped in the circumferential direction by being gripped and rotated by an operator. For example, the protrusion 15a of the first hose joint 10 inserted into the groove portion of the second hose joint 20 is the distance between the tip side surface and the root side surface facing each other inside the groove portion of the second hose joint 20. At a position where becomes small, it is in a fitted state. Similarly, the projecting portion of the second hose joint 20 inserted into the groove portion 15 of the first hose joint 10 is opposite to the tip side surface 15 b and the root side surface facing the inside of the groove portion 15 of the first hose joint 20. At the position where the distance from 15c becomes small, the fitting state is established.

  When in the fitted state, the stopper 19a is rotated by the elastic force of the torsion coil spring 19b, and between the claw portion 14 of the first hose joint 10 and the claw portion 24 of the second hose joint 20 adjacent thereto. Get into the locked state again. When the stopper 19a is in the locked state, the relative positions of the claw portions 14 and 24 are fixed.

  Thus, the first hose joint 10 and the second hose joint 20 are connected by fitting the groove and the corresponding protrusion, and the first fire hose 31 and the second fire hose 32 are connected. Are connected in a state in which fluid can flow.

  As can be seen from the above description, according to the hose coupling of the present embodiment, when connecting the first and second fire hoses 31, 32, a separately prepared fastening tool such as a spanner is not used. Thus, it is possible to perform the connection work efficiently and in a shorter time.

  The first and second hose joints 10 and 20 are generally always attached to the first and second fire fighting hoses 31 and 32. When the handle 17a is not in the standing state, that is, in the accommodated state, the handle 17a is fixed in a state of extending in the circumferential direction. Therefore, when the connection work of the fire hoses 31, 32 is not performed, the handles 17a, 27a do not interfere with other work. Moreover, since the handles 17a and 27a do not interfere with other members, the fire hoses 31 and 32 can be used in a safer state. Further, since the handle portions 17A, 17B, 27A, and 27B are provided in the segments of the hose fixing members 16 and 26 having high rigidity, the rigidity of the handle portions 17A, 17B, 27A, and 27B can be increased.

  The description of the above embodiment is an example for explaining the present invention, and does not limit the invention described in the claims. Moreover, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.

  For example, in this embodiment, the nail | claw part 14 is arrange | positioned at equal intervals every 30 degree | times, However, it is not restricted to this. For example, four claw portions 14 may be arranged every 90 degrees. Moreover, you may arrange | position three nail | claw parts 14 every 120 degree | times.

  In the above embodiment, one operator holds the two handle pairs 18 of the first hose joint 10 and the other operator holds the two handle pairs of the second hose joint 20. Not limited to this. When connecting a hose with a small outer diameter, the connection work can be performed by one operator.

  For example, in the first hose joint 10, the two handle portions 17A and 17B of the first segment 16a are raised to form one handle pair 18, and the second hose joint 20 also forms one handle pair. A single operator may hold the handle pairs and perform the tightening operation.

  Further, in the present embodiment, each handle pair 18 of the first and second segments 16a and 16b includes an abutting portion with which the outer surfaces of the first and second handle portions 17A and 17B of the first segment 16a abut. The angle formed by the straight line connecting the hose diameter center and the straight line connecting the contact portion where the outer surfaces of the first and second handle portions 17A, 17B of the second segment 16b abut and the hose diameter center is 120 degrees. It is. However, in consideration of workability, it is desirable that the angle formed is close to 180 degrees. In order to set the angle to an angle close to 180 degrees, the hose fixing member 16 may be composed of four segments.

  Moreover, in this embodiment, in order to hold | maintain the accommodation state of a handle | steering-wheel part, although the protrusion part is provided in the continuous part side axial direction end surface, and the protrusion part is comprised so that reciprocation is possible in an axial direction, it is not restricted to this. A groove may be provided on the surface which is on the inner side in the hose radial direction when the handle portion is in the housed state, and the projecting portion may be fitted into the groove to maintain the handle portion in the housed state.

DESCRIPTION OF SYMBOLS 10 1st hose coupling 11 Joint main body 12 Hose attachment part 12a Protrusion part 13 Connection part 14 Claw part 14a Axial front end surface 14b Tip side inclined surface 14c Outer surface 14d Root side inclined surface 14e Root side plane 15 Groove 15a Projection Part 15b Tip side surface 15c Root side surface 15d Radial outer side surface 16 Hose fixing member (annular member)
16a 1st segment 16b 2nd segment 16c 3rd segment 16f Fastening part 16e Connection part side axial direction end surface 16h Shaft attachment part 16g Engagement part 17A 1st handle part 17a 1st shaft member 17B 2nd handle Portion 17b Second shaft member 17c Through hole (concave portion)
17d Concavity and convexity 18 Handle pair 19 Locking mechanism 19a Stopper 19b Torsion coil spring 20 Second hose joint 23 Connecting portion 24 Claw portion 26 Hose fixing member 26a First segment 26c Third segment 27A First handle portion 27B Second Handle portion 29 Locking mechanism 31 First fire hose 32 Second fire hose 37 Bolt

Claims (5)

A substantially cylindrical shape through which fluid can flow, and a hose attachment portion to which a hose can be attached is provided at one axial end, and a plurality of segments removably attached to the joint main body. Have
In the hose joint configured to connect the plurality of segments in the circumferential direction to constitute one annular member, and to fix the hose to the hose attachment portion by the annular member,
The joint body has a connecting portion that can be connected to another joint, and the connecting portion is integrally provided adjacent to the hose attachment portion in the axial direction;
Two handle portions extending along the circumferential direction are attached to an axial end surface of at least one of the segments at intervals in the circumferential direction, and the two handle portions have circumferential end portions adjacent to each other. Pivotable as a center,
When the two handle portions rotate, they are in a standing state extending radially outward, and the two handle portions in the standing state are in contact with each other to form one handle pair,
The connecting portion is configured to be connected to the other joint by bringing the connecting portion into contact with the other joint, gripping the handle pair in the standing state and rotating in the circumferential direction. A hose coupling characterized in that The annular member is constituted by three segments having the same circumferential length,
The hose coupling according to claim 1, wherein each of the two segments is provided with two handle portions, and one handle pair can be configured. The axial end face of the segment is provided with an engaging portion capable of protruding in the axial direction,
The handle portion is provided with a recess at a position corresponding to the engagement portion,
The hose coupling according to claim 1 or 2, wherein the housing state of the handle portion is maintained when the engaging portion engages with the concave portion.
It is composed of two joints through which fluid can flow.
Each of the joints has a substantially cylindrical shape, and has a joint body in which a hose attachment portion to which a hose can be attached is provided at one axial end, and a plurality of segments that are detachably attached to the joint body. ,
In the hose joint configured to connect the plurality of segments in the circumferential direction to constitute one annular member, and to fix the hose to the hose attachment portion by the annular member,
Each joint body has a connecting part that can be connected to each other, and the connecting part is integrally provided adjacent to the hose attachment part in the axial direction;
A plurality of claw portions protruding in the axial direction are provided at intervals in the circumferential direction at the axial end portions of the respective connecting portions, and a groove portion extending in the circumferential direction is provided in the claw portion,
Two handle portions extending along the circumferential direction are attached to an axial end surface of at least one of the plurality of segments in each joint at intervals in the circumferential direction, and the two handles The part is pivotable about circumferential ends that are close to each other,
When the two handle portions rotate, they are in a standing state extending radially outward, and the two handle portions in the standing state are in contact with each other to form one handle pair,
The claw portion of one joint of the two joints is inserted into the groove portion of the other joint in the axial direction, the handle in the standing state is gripped, and tightened in the circumferential direction, whereby the claw The hose joint is configured such that the portion moves in the circumferential direction in the groove portion, and the claw portion is fitted in the groove portion. It has a plurality of segments that can be attached to and detached from a cylindrical hose joint, and constitutes a single ring by connecting the plurality of segments in the circumferential direction, and is configured to surround the hose and fix it to the hose joint. In the hose fixing member
Two handle portions extending along the circumferential direction are attached to an axial end surface of at least one of the segments at intervals in the circumferential direction, and the two handle portions have circumferential end portions adjacent to each other. Pivotable as a center,
When the two handle portions rotate, they are in a standing state extending radially outward, and the two handle portions in the standing state are in contact with each other to form one handle pair,
The hose joint is brought into contact with another joint, the handle in the standing state is gripped, and the handle is rotated in the circumferential direction so that the hose joint and the other joint are connected. A hose fixing member.