JP3216796U - Coupling metal fittings, insert metal fittings and sliding cylinders used therefor - Google Patents

Abstract

The present invention provides a fitting that can more easily and unexpectedly be prevented from being unintentionally released. A coupling metal fitting 1 includes an engagement protrusion 22 and a metal fitting 2 having a sliding portion 23 continuous with the engagement protrusion 22; a metal fitting 3 having a claw 31; The sliding cylinder 4 having the press ring part 40 and the sliding regulation means 5 for regulating the sliding of the sliding cylinder 4 are provided, and the nail 31 is inserted into the metal fitting 3 with the insert 2. At this time, the sliding member 5 is provided so as to be engageable with the engaging protrusion 22, and the sliding restricting means 5 includes a hooking portion 50 and a hooking portion 51 provided so as to be hookable with the hooking portion 50 and slide. By rotating the moving cylinder 4, the engagement between the latching portion 50 and the latching portion 51 can be released, and the push ring portion 40 is moved to the sliding portion 23 by sliding the sliding cylinder 4. It is provided so as to be slidable along, and the engagement between the claw 31 and the engagement protrusion 22 can be released by sliding the push ring portion 40. [Selection] Figure 1

Description

  The present invention relates to a coupling fitting, and a fitting and a sliding cylinder used therein, and more particularly to a plug-type coupling fitting and a fitting and a sliding cylinder used therefor.

  Conventionally, there are plug-in type fittings used for joining fire hoses or the like (see, for example, Patent Documents 1 and 2). Such a coupling metal fitting consists of two parts, a metal fitting and a metal fitting. The metal fitting is provided with a plurality of claws urged in the inner diameter direction by the claw ridges and engages the metal fitting with the metal claw. A recess provided in a possible manner is formed, and when the metal fitting is inserted into the receiving metal fitting, the claws and the groove are engaged to engage with each other.

  Such a coupling fitting is provided with a push ring for releasing the coupling. The press ring is slidable in the axial direction and has a hook part (flange) provided so that it can be hooked with a finger. By pushing up the claw ridge in the outer diameter direction, the engagement between the claw and the recess is released, and the coupling of the coupling fitting is released.

  Plug-in coupling fittings are used for connecting fire hoses, for example. The press ring was not designed to be restricted in particular, so if the hose accidentally shakes and the push ring gets caught on something and slides in the axial direction, There is a problem that there is a possibility that the engagement between the recess and the recess is released and the metal fitting and the metal fitting may be unexpectedly detached.

  In view of this, a plug-in type fitting that prevents this unexpected detachment has been developed (see Patent Document 3). In the joint metal fitting described in Patent Document 3, a lock member is separately provided, and the sliding of the push ring is locked by the lock member, thereby preventing the joint between the insert metal fitting and the metal fitting from being released unexpectedly. doing.

JP 2013-79659 A JP 2013-92172 A JP 2004-11860 A

  In the joint metal fitting described in Patent Document 3, it is necessary to hang the lock member on the joint metal fitting after joining the metal fitting and the receiving metal fitting, and there is a problem that the work becomes complicated. In particular, in a fire scene where quickness is required, it is not practical to hang lock members on all of the fittings, and there is a situation that some of the fittings remain even if the lock members are hung. .

  In view of this, the present invention has been made in consideration of the actual situation at a fire site, and an object of the present invention is to provide a fitting that can more easily prevent the coupling from being unexpectedly released.

  The present invention includes an engagement fitting and a fitting having a sliding portion continuous with the engagement projection, a receiving fitting having a claw, a sliding cylinder having a push ring portion through which the fitting is loosened, A sliding restricting means for restricting sliding of the sliding cylinder, and the claw is provided so as to be engageable with the engaging protrusion when the insertion fitting is inserted into the receiving fitting, The sliding restricting means has a latching portion and a latching portion provided so as to be latchable with the latching portion, and by rotating the sliding cylinder, the latching portion and the latching portion are provided. Engagement with the engaging part can be released, and the push ring part is provided so as to be slidable along the sliding part by sliding the sliding cylinder. The coupling fitting is characterized in that the engagement between the claw and the engagement protrusion can be released by sliding. In addition, the present invention is a fitting that is used for the coupling fitting. Moreover, this invention is a sliding cylinder characterized by being used for the said coupling metal fitting.

  In the present invention, the latching portion is a latching hole, the latching portion is a latching projection, and one of the latching hole and the latching projection is provided on the metal fitting, and the latching hole and the latching The other of the protrusions can be provided on the sliding cylinder. In the present invention, the retaining hole can be a substantially L-shaped hole. In the present invention, the metal fitting has the claw instead of the engaging protrusion and the sliding portion, and the receiving metal fitting has the engaging protrusion and the sliding portion instead of the claw. It is possible to have the sliding cylinder in which the receiving metal fitting is loosened in place of the fitting.

  The present invention provides a sliding restricting means for restricting the sliding of the sliding cylinder having the push ring part, and the engagement between the engaging part and the engaging part of the restricting means is released by rotating the sliding cylinder. Since it was made possible, it is possible to prevent the coupling between the metal fitting and the metal fitting from being released unexpectedly more easily.

It is the one side sectional view of an embodiment of the present invention, (a) is a figure showing the state where a metal fitting and a receiving metal fitting were engaged, (b) is the engagement of a metal fitting and a receiving metal fitting. It is a figure which shows the state released | released. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view of the metal fitting which shows embodiment of this invention, and a sliding cylinder, (a) is a figure which shows the state by which sliding of the sliding cylinder was controlled, (b) is a figure of a sliding cylinder. It is a figure which shows the state from which the restrictions of sliding were cancelled | released. It is a reduction | restoration top view of the metal fitting and sliding cylinder which show the modification of embodiment of this invention, (a) is a modification which provided the boss | hub as a non-slip part, (b) is as a non-slip part (C) is a modified example in which a comb band is provided as a non-slip portion.

  An embodiment of the present invention will be described with reference to FIGS. The coupling fitting 1 is used for coupling a fire hose (not shown), for example, and includes a fitting 2, a receiving fitting 3, a sliding cylinder 4, and a sliding regulating means 5. The metal fitting 2 is connected to one of the fire hoses to be joined, and the metal fitting 3 is connected to the other of the fire hoses.

  The insertion fitting 2 has a substantially cylindrical shape in which a flow path F of fire extinguishing water or the like is formed inside, for example, a substantially cylindrical shape, and can be inserted into the hole 30 of the receiving fitting 3 on the tip 1a side. And a hose joint portion 21 provided with a joint portion (not shown) of a hose so that it can be inserted on the base end 1b side.

  The insertion part 20 has a sliding part 23 provided with an engaging protrusion 22 and continuous with the engaging protrusion 22 on the front end 1 a side of the outer surface thereof. On the outer peripheral surface of the hose joint portion 21, a hooking projection 51 which is a part of the sliding restriction means 5 described later is provided on the distal end 1 a side continuous with the proximal end 1 b side of the sliding portion 23, and its proximal end A gripping portion 24 is provided on the 1b side. In addition, although the hose coupling part 21 is a type in which the joint part of a fire hose is inserted, other types, such as screwing, can be employ | adopted suitably, for example.

  The grip portion 24 is a portion to be gripped when the sliding cylinder 4 is rotated or slid, and is held in a state of wearing a fireproof glove at least during a fire extinguishing activity or the like. It is formed to a width that can be used. In the present embodiment, the gripping portion 24 is formed at an opposing position so that the entire or part of its outer surface is knurled and is easy to hold when gripped with wet fireproof gloves. A pair of notches 25 is further provided.

  The metal fitting 3 has a substantially cylindrical shape, for example, a substantially cylindrical shape, in which a hole 30 constituting a part of the flow path F is provided on the inner side thereof, and the circumferential direction of the hole 30 toward the proximal end 1b side. Claws 31 are provided so as to be spaced apart from each other. Further, the receiving metal fitting 3 is provided with a hose joint 32 on the tip 1a side. As the hose joint 32, various ones can be selected as necessary, similarly to the hose joint 21.

  The claw 31 is urged in the inner diameter direction by the claw ridge 33, and when the insertion fitting 2 is inserted into the receiving fitting 3, it is once retracted in the outer diameter direction by the engagement protrusion 22. When the metal fitting 2 is inserted into the metal fitting 3 to a position where the concave strip 6 formed by the engaging projection 22 and the push ring portion 40 described later and the claw 31 face each other, the claw ridge 33 again causes the claw to protrude in the inner diameter direction. And engages with the engaging protrusion 22.

  In the present embodiment, the claw 31 and the claw ridge 33 are attached to the receiving metal fitting 3 so as to be accommodated in a recess 34 formed on the inner surface of the hole 30. For this reason, as for the nail | claw 31, it is desirable for the surface by the side of the base end 1b to become the taper surface 31a. In addition, the recesses 34 are provided in three locations that are spaced apart in the circumferential direction at intervals of 120 °, and accordingly, the claws 31 are also provided in three locations, but the number, shape, etc. of the claws 31 are necessary. It can be appropriately selected depending on the situation.

  The sliding cylinder 4 has a substantially cylindrical shape, for example, a substantially cylindrical shape, in which the metal fitting 2 is loosely provided, that is, can be penetrated with play. It can slide along the outer peripheral surface. The sliding cylinder 4 has a push ring portion 40 on the distal end 1a side and a main body 41 on the proximal end 1b side. The main body portion 41 is provided with a retaining hole 50 which is a part of the slide restricting means 5 described later.

  The push ring portion 40 is provided for releasing the engagement between the claw 31 of the metal fitting 3 and the engagement protrusion 22 of the metal fitting 2 and releasing the metal fitting 2 from the metal fitting 3. The press ring part 40 is provided so as to be slidable along the sliding part 23 by sliding the sliding cylinder 4 along the outer peripheral surface of the metal fitting 2.

  Thereby, when the sliding cylinder 4 is positioned on the base end 1b side, the push ring portion 40 forms the concave stripe 6 together with the engagement protrusion 22 of the metal fitting 2, and slides the sliding cylinder 4. When the sliding cylinder 4 is positioned on the distal end 1a side, the claw 31 of the metal fitting 3 housed in the recess 6 is pushed up in the outer diameter direction, and the claw 31 of the metal fitting 3 and the engagement protrusion 22 of the insert metal fitting 2 are The engagement is released.

  The sliding restricting means 5 has a latching portion and a latching portion provided so as to be latchable with the latching portion, and by engaging the latching portion with the latching portion, It is provided to regulate the sliding in the axial direction A1, and the engagement is released by rotating the sliding cylinder 4 in a state where the sliding is regulated, and the sliding of the sliding cylinder 4 Regulations can be lifted.

  In the present embodiment, the sliding restricting means 5 has a latching hole 50 as an example of the latching portion and a latching protrusion 51 provided so as to be able to engage with the latching hole 50 as an example of the latching portion. doing. The latching hole 50 and the latching protrusion 51 are provided in two places, more specifically, so that the other set is located on the opposite side of one set. In addition, about the number of sets, the position to provide, etc. of the latching hole 50 and the latching protrusion 51, it can change suitably.

  The hooking protrusion 51 is held in a state of being loosely passed through the hooking hole 50. In the present embodiment, the hooking protrusion 51 is provided as a pin erected from the outer peripheral surface of the hose joint portion 21 of the fitting 2, but the shape and the like can be hooked with the hooking hole 50. If it is, it can be changed as needed.

  The retaining hole 50 has a restriction hole 50a and a sliding hole 50b continuous with the restriction hole 50a. In the present embodiment, the main body portion 41 of the sliding cylinder 4 is formed as a hole provided in a substantially L shape so that the restriction hole portion 50a extends in the circumferential direction on the tip 1a side of the sliding hole portion 50b. Is provided. In addition, about the shape etc. of the latching hole 50, if it can engage with the latching protrusion 51, it can change suitably as needed.

  The restriction hole 50a engages with the engagement protrusion 51 in a state where the engagement protrusion 51 is positioned in the restriction hole 50a, and restricts the sliding of the sliding cylinder 4 in the axial direction A1. The sliding hole 50b is for enabling the sliding cylinder 4 to slide along the metal fitting 2 in a state where the engaging projection 51 is positioned in the sliding hole 50b.

  In other words, the push ring portion 40 can be easily attached to the sliding portion 23 by sliding the sliding cylinder 4 along the metal fitting 2 in a state where the engaging projection 51 is located in the sliding hole portion 50b. On the other hand, it is possible to slide along the sliding portion 23 in a state where the engaging projection 51 is positioned in the restriction hole portion 50a.

  When the insertion fitting 2 is inserted into the receiving fitting 3 in order to connect the fire hose, the sliding cylinder 4 is previously positioned on the base end 1b side, and the engaging projection 51 is inserted into the restriction hole 50a. The sliding cylinder 4 is rotated so as to be positioned, and the insertion part 20 of the metal fitting 2 is inserted into the hole 30 of the metal fitting 3 while the sliding of the sliding cylinder 4 is restricted. If it does so, the nail | claw 31 of the receiving metal fitting 3 will be engaged with the engagement protrusion 22 of the metal fitting 2 in the form which fits in the groove 6, and the coupling | bonding of the fire hose is completed.

  When releasing the coupling of the fire hose, the sliding cylinder 4 is rotated, and the engaging projection 51 is moved from the restricting hole portion 50a to the sliding hole portion 50b. 50b, the sliding restriction of the sliding cylinder 4 is released, the sliding cylinder 4 is slid along the metal fitting 2 in the axial direction A1, and the press ring part 40 is moved along the sliding part 23. Slide. Then, the push ring portion 40 of the sliding cylinder 4 gradually enters the inside of the claw 31 along the tapered surface 31a, and pushes up the claw 31 in the outer diameter direction. When the push ring portion 40 is slid to a position where the push ring portion 40 comes into contact with or close to the engagement protrusion 22, the engagement between the claw 31 and the engagement protrusion 22 is released, and the metal fitting 2 is removed. It can be removed from the receiving metal fitting 3.

  Therefore, in the fitting 1, the push ring portion 40 is restricted from sliding toward the tip 1 a as long as the hooking protrusion 51 is positioned in the restriction hole 50 a. The release of this restriction requires the sliding cylinder 4 to rotate, and the operation of rotation is an operation that is unlikely to occur unless it is artificially performed. Even if it is a case, it is prevented that the coupling is unexpectedly released.

  In the present embodiment, the sliding cylinder 4 is provided with a certain length in the axial direction A1 because the retaining hole 50 is provided, whereby the sliding cylinder 4 is secured. Since the main body 41 can be gripped when sliding, the hook part that has been necessary in the past is unnecessary, and the hose may be caught by something when it is accidentally shaken. It is possible to eliminate the portion as much as possible, and also from this point, even when the hose is swung unexpectedly, the unintentional release is prevented.

  Further, no additional work is required to lock the sliding of the push ring portion 40, and it is possible to prevent unintentional release of the coupling even at a site requiring quickness such as a fire site. Is possible.

  Although this invention was demonstrated based on the said embodiment, this invention is not limited to the said embodiment, In the range which does not change the summary of invention, it can change suitably.

  For example, (1) a non-slip portion on the base end 1b side of the sliding cylinder 4 as in the modification shown in FIG. 3 (the configuration other than the anti-slip portion 42 is the same as that of the first embodiment). 42 may be provided. As the non-slip portion 42, a plurality of bosses 42A (see FIG. 3A), knurls 42B (see FIG. 3B), rubber bands 42C (see FIG. 3C), and the like are adopted. Is possible.

  (2) In the above embodiment, the latching hole 50 of the sliding restricting means 5 is provided on the sliding cylinder 4 side and the latching projection 51 is provided on the metal fitting 2 side. Can be provided on the side of the metal fitting 2 and the latching protrusion 51 can be provided on the side of the sliding cylinder 4.

  (3) In the above embodiment, the retaining hole 50 is provided in an L shape. However, the shape and the like of the retaining hole 50 can be changed as appropriate. For example, the sliding hole 50b is made more than the restricting hole 50a. Further, it may be extended to the tip 1a side, or the restriction hole 50a is extended to the opposite side in the circumferential direction so that the retaining hole 50 is T-shaped or cross-shaped, and the sliding cylinder 4 is any Even if it is rotated in the direction, the restriction on the sliding may be released.

  (4) In the above embodiment, the slide restricting means 5 is provided with the slide hole portion 50b. However, the length of the hooking projection 51 can be expanded and contracted in the radial direction by staking, etc. It is also possible to provide only the restriction hole 50a, for example, such that the engaging projection 51 is retracted by the sliding cylinder 4 when the 4 is rotated.

  (5) In the above embodiment, the latching portion of the sliding restricting means 5 is provided as the latching hole 50, but the latching portion does not necessarily have a hole shape, and the latching that can be latched with the latching protrusion 51 is possible. It may be provided as a protrusion (not shown), and when the sliding cylinder 4 is rotated, the sliding cylinder 4 may be slidable by shifting the axis of the engaging protrusion 51 and the engaging protrusion.

  (6) In the above embodiment, the engagement protrusion 22 is provided on the metal fitting 2 and the claw 31 is provided on the receiving metal fitting 3 side, but the claw 31 is provided on the metal fitting 2 and the engagement protrusion 22 is provided on the metal fitting 3. You may make it provide. In this case, the receiving tube 3 is passed through the sliding cylinder 4.

DESCRIPTION OF SYMBOLS 1 Connection metal fitting 1a Tip 1b Base end 2 Insertion fitting 20 Insertion part 21 Hose joint part 22 Engagement protrusion 23 Sliding part 24 Gripping part 25 Notch part 3 Receiving metal fitting 30 Hole part 31 Claw 31a Tapered surface 32 Hose joint 33 Claw ridge 34 Concave part 4 Sliding cylinder 40 Push ring part 41 Main body part 42 Non-slip part 42A Boss 42B Knurl 42C Rubber band 5 Sliding restricting means 50 Retaining hole 50a Restricting hole part 50b Sliding hole part 51 Engaging protrusion 6 Concave line A1 shaft Direction F Flow path

Claims (6)

A fitting having an engaging protrusion and a sliding portion continuous with the engaging protrusion;
A receiving bracket having a nail,
A sliding cylinder in which the fitting is loosened and has a push ring part;
Sliding regulation means for regulating sliding of the sliding cylinder,
The claw is provided so as to be able to engage with the engaging protrusion when the metal fitting is inserted into the receiving metal fitting,
The sliding restricting means has a latching portion and a latching portion provided so as to be latchable with the latching portion, and by rotating the sliding cylinder, the latching portion and the latching portion are provided. It is possible to cancel the engagement with the engagement part,
The push ring portion is provided so as to be slidable along the sliding portion by sliding the sliding cylinder,
A coupling fitting, wherein the engagement between the claw and the engagement protrusion can be released by sliding of the push ring portion. The latching portion is a latching hole,
The hooking portion is a hooking projection,
One of the hooking hole and the hooking projection is provided on the metal fitting,
The coupling bracket according to claim 1, wherein the other of the hooking hole and the hooking protrusion is provided on a sliding cylinder.   The coupling metal fitting according to claim 2, wherein the retaining hole is a substantially L-shaped hole. The insertion fitting has the claw instead of the engagement protrusion and the sliding portion,
The receiving bracket has the engaging protrusion and the sliding portion instead of the claw,
2. The coupling fitting according to claim 1, wherein the sliding cylinder is formed by loosening the receiving fitting instead of the insertion fitting.   A metal fitting used for the fitting according to any one of claims 1 to 4.   A sliding cylinder used for the fitting according to any one of claims 1 to 4.

Images