JP2007247834A - Connecting means of joint - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connecting means of a joint, in which a pulling force by pulling members are surely transmitted to a socket and a spigot in a tube axis direction so as to relatively pull the holes, regardless of shape of the expanded part. <P>SOLUTION: The connecting means is constituted of: a spigot fixed member 16 fixed to an outer face of the spigot 12 along a circumferential direction; and the pulling members 17, whose one end sides have hooks 17a hooked to an expanded part 5a of the socket 5 and other end sides are engaged with the spigot fixed member 16, and which relatively pull the socket 5 and the spigot 12 in the tube axis direction C. Hook parts 17a are locked to an expanded part 5a, through a locking member 20 circumferentially disposed to an outer face of the socket 5 so as to be abutted with the expanded part 5a. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a joint body connecting means for watertightly connecting an insertion port of another fluid pipe to a receiving port of one fluid pipe.

  The connecting means of the conventional joint body includes an insertion port fixing member fixed to the outer surface of the insertion port along the circumferential direction, one end side hooked with the receiving port, and the other end side engaged with the insertion port fixing member, It is comprised from the attracting member which draws a receptacle and an insertion port relatively in a pipe-axis direction (for example, refer patent document 1).

Japanese Utility Model Publication No. 55-39190 (first page, FIG. 6)

  However, in Patent Document 1, a part of the outer surface of the receiving port is formed in a bulging portion that bulges outward along the circumferential direction, and the insertion port extends in an extending direction from the bulging portion. The attracting member and the receiving port are hooked at predetermined positions of the receiving port that are separated from each other, and the receiving port and the insertion port are relatively pulled in the tube axis direction.

  Because of the structure of such a connecting means, an attracting member constructed between the insertion port fixing member fixed to the outer surface of the insertion port and the predetermined portion installed across the bulging portion of the receiving port. Since the extension becomes longer, not only the structure of the attracting member is increased, but also the attracting direction is difficult to be determined in the tube axis direction, and the attracting force by the attracting member may not be reliably transmitted.

  The present invention has been made paying attention to such a problem. Regardless of the shape of the bulging portion, the pulling force by the pulling member is reliably transmitted to the receiving port and the insertion port in the tube axis direction. An object of the present invention is to provide a connecting means for a joint body that can be relatively pulled.

In order to solve the above-mentioned problem, the joint body connecting means according to claim 1 of the present invention is a joint body connecting means for watertightly connecting the inlet of the other fluid pipe to the inlet of the one fluid pipe. And a part of the outer surface of the receiving port is formed in a bulging portion that bulges outward along the circumferential direction,
An insertion port fixing member fixed to the outer surface of the insertion port along the circumferential direction, and a flange formed on one end side of the insertion port are engaged with the bulging portion of the reception port, and the other end side is engaged with the insertion port fixing member. And a drawing member that draws the receiving port and the insertion port relatively in the tube axis direction,
Further, the collar portion is latched with the bulging portion via a latching member that contacts the bulging portion along the circumferential direction on the outer surface of the receiving port.
According to this feature, the extension of the attracting member can be shortened because the collar portion of the attracting member is hooked to the bulging portion via the latching member attached to the bulging portion of the receiving port. Regardless of the shape of the bulging portion, the pulling force by the pulling member is reliably transmitted to the receiving port and the insertion port in the tube axis direction via the hooking member, and can be pulled relatively.

The joint body connecting means according to claim 2 of the present invention is the joint body connecting means according to claim 1, wherein the attracting member is located at approximately two positions symmetrically with respect to the tube axis. It is characterized by being comprised in.
According to this feature, using the drawing members configured in at least two locations positioned substantially symmetrically with respect to the tube axis, the receiving port and the insertion port are drawn without being displaced with respect to the tube axis direction. I can do it.

The joint body connecting means according to claim 3 of the present invention is the joint body connecting means according to claim 2, wherein the latching member has an inner diameter substantially the same as the outer diameter of the receiving port. The substantially U-shaped member is provided, and the flange portion of the attracting member is hooked at both ends of the substantially U-shaped member.
According to this feature, the latching member used together with the pulling member positioned substantially symmetrically with respect to the tube axis is a substantially U-shaped member, and both ends of the substantially U-shaped member are used as places to be latched with the collar portion. By using the portion, the hooking member can be easily attached to the outer surface of the receiving port from one direction. Further, the pulling force can equally apply the pulling force to the bulging portion of the receiving port using the entire surface of the latching member which is a substantially U-shaped member.

The joint body connecting means according to claim 4 of the present invention is the joint body connecting means according to claim 3, wherein the flange portion is placed at the tip of both ends of the substantially U-shaped member. It is characterized in that a buttocks mounting table is projected.
According to this feature, when pulling the receiving port and the insertion port by placing the collar part of the attracting member on the collar part mounting table protrudingly provided at the tips of both ends of the substantially U-shaped member. Can be hooked in a stable state.

According to a fifth aspect of the present invention, there is provided the joint body connecting means according to any one of the first to fourth aspects, wherein the flange portion of the attracting member is a bulge of the receiving port. It is characterized by being formed in a substantially U-shape so that the protruding portion can be surrounded.
According to this feature, the substantially U-shaped flange is surrounded by the bulging portion of the receiving port, so that the substantially U-shaped flange is hooked to the outer end side of the receiving port. The mouth and the insertion opening can be relatively separated from each other.

The joint body connecting means according to claim 6 of the present invention is the joint body connecting means according to any one of claims 1 to 5, wherein the attraction member has a rack and pinion structure. It is characterized by that.
According to this feature, the attracting member can be configured at low cost by using a general-purpose rack and pinion structure.

  Examples of the present invention will be described below.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a plan view showing an overall image of a joint body connecting means in an embodiment of the present invention. FIG. 2 is a front view similar to FIG. FIG. 3 is a side view similar to FIG. Fig.4 (a) is a front view of a substantially U-shaped member, (b) is AA sectional drawing of (a). FIG. 5 is a partial cross-sectional view showing a state in which the receiving port and the insertion port are connected.

  As shown in FIGS. 1 and 2, the joint body according to the present invention has a watertight connection between the receiving port 5 of the straight pipe 2 as one fluid pipe and the insertion port 12 of the straight pipe 11 as the other fluid pipe. To connect to. In addition, fluid such as water and sewage or gas flows down in the fluid pipe.

  The joint body includes a receiving port 5 formed at the end of the straight tube 2, an insertion port 12 formed at the end of the straight tube 11 inserted into the inner surface of the receiving port 5, and the receiving port 5. And a bolt 9 as a fixing member for the insertion opening 12. Further, in the vicinity of the outer end of the receiving port 5, a part of the outer surface is formed in a bulging portion 5 a that bulges outward along the circumferential direction.

  Further, as shown in FIG. 5, bolt holes 5 b are formed at substantially equal intervals in the circumferential direction on the outer peripheral surface of the bulging portion 5 a of the receiving port 5, so that the tube shaft extends from the outside of the straight pipe 2. A bolt 9 is formed as a fixing member between the receiving port 5 and the insertion port 12 screwed in a direction orthogonal to C.

  A fixing claw 10 is provided at the tip of the bolt 9. The fixed pawl 10 is housed in a recess formed in the inner surface of the receiving port 5 along the circumferential direction.

  Next, as shown in FIG. 1 to FIG. 3, the connection means between the receiving port 5 and the insertion port 12 will be described. The connection unit in the present invention is fixed to the outer surface of the insertion port 12 along the circumferential direction. The insertion port fixing member 16 and the flange portion 17a formed on one end side are engaged with the bulging portion 5a of the receiving port 5 and the other end side is engaged with the insertion port fixing member 16, and the receiving port 5 and the insertion port 12 is mainly composed of a drawing member 17 that draws 12 in the direction of the tube axis C relatively.

  The insertion port fixing member 16 is a ring-shaped body having an inner diameter that is substantially the same as the outer diameter of the insertion port 12, and has a split structure that can rotate around a fulcrum portion 16 b. It is configured to be fixed along the circumferential direction on the outer surface of the insertion opening by tightening.

  A plurality of protrusions 16 a that bulge inward toward the tube axis C and softer than the outer surface of the insertion opening 12 are provided on the inner surface of the insertion opening fixing member 16 along the circumferential direction. In this way, the protrusion 16a that is softer than the outer surface of the insertion port 12 is brought into contact with the outer surface of the insertion port 12, and the insertion port fixing member 16 is fixed to the outer surface of the insertion port 12. It is possible to prevent the outer surface of 12 from being damaged and corroded by fixing.

  The pulling member 17 has a rack and pinion structure composed of a rack 17b and a pinion 17c meshing with each other, and is configured at two locations positioned substantially symmetrically with respect to the tube axis C. On the receiving port 5 side of the racks 17b and 17b arranged in the C direction, flanges 17a and 17a are attached.

  The pinions 17c and 17c are rotatably provided on both side portions of the insertion port fixing member 16, and the racks 17b and 17b engaged with the pinions 17c and 17c are connected to the tube axis C by the rotation of the pinions 17c and 17c. It is engaged so as to be movable in the direction.

  Further, the flange portion 17a is formed in a substantially U shape so as to be able to surround the bulging portion 5a of the receiving port 5, and through a substantially U-shaped member 20 as a latching member that comes into contact with the bulging portion 5a, It is hooked with the bulging portion 5a. The substantially U-shaped member 20 has an inner diameter that is substantially the same as the outer diameter of the receiving port 5, and is disposed on the outer surface of the receiving port 5 in contact with the back surface of the bulging portion 5 a along the circumferential direction. Yes. The flange portion 17 a of the attracting member 17 is hooked at both end portions 20 a and 20 a of the substantially U-shaped member 20.

  By doing in this way, the latching member used with the attracting members 17 and 17 positioned substantially symmetrically with respect to the tube axis C is the substantially U-shaped member 20, and is a place where the latching member 17 a is latched. By using both ends 20a, 20a of the substantially U-shaped member 20, the substantially U-shaped member 20 as a latching member can be easily attached to the outer surface of the receiving port 5 from one direction by the handle portion 20c. Further, the flange portion 17 a can apply the pulling force evenly to the bulging portion 5 a of the receiving port 5 by using the entire surface of the substantially U-shaped member 20.

  Further, a flange mounting base 20b for mounting the flange portion 17a is projected from the distal ends of both end portions 20a of the U-shaped member 20, and thus protrudes from the distal ends of both end portions 20a of the substantially U-shaped member 20. By placing the collar part 17a of the drawing member 17 on the collar part mounting table 20b, the collar part 17a can be hooked in a stable state when the receiving port 5 and the insertion slot 12 are drawn. .

  Next, the connection between the receiving port 5 and the insertion port 12 will be described. As shown in FIG. 3, the pinion 17c of the attracting member 17 is engaged with the pinion 17c by rotating with the rotating tool K. When the rack 17b is moved in the direction of the tube axis C (the direction of the white arrow in FIGS. 1 and 2), the bulging portion 5a of the receiving port 5 is hooked on the flange portion 17a via the substantially U-shaped member 20. The attraction force is transmitted to.

  Thus, since the flange part 17a of the attracting member 17 is latched with the bulging part 5a via the substantially U-shaped member 20 attached to the bulging part 5a of the receiving port 5, the attracting member 17 The rack 17b can be configured to be short, and regardless of the shape of the bulging portion 5a, the pulling force by the pulling member 17 can be reliably received in the direction of the tube axis C via the substantially U-shaped member 20 and And can be drawn relatively.

  Further, by using the attracting members 17, 17 configured at two positions located substantially symmetrically with respect to the tube axis C, the receiving port 5 and the insertion port 12 are pulled without being displaced with respect to the tube axis C direction. I can send it.

  The attracting member of the present invention is not limited to being configured at two locations positioned substantially symmetrically with respect to the tube axis C as in the present embodiment, and the receiving port 5 and the insertion port 12 are connected to the tube axis C. The attracting member may be configured at three or more locations as long as it can be attracted without shifting with respect to the direction.

  Further, the pulling member 17 has a rack and pinion structure composed of a rack 17b and a pinion 17c meshing with each other, and in this way, the pulling member is inexpensively made use of a general-purpose rack and pinion structure. 17 can be configured.

  As described above, by using the pulling member 17, the receiving port 5 and the insertion port 12 are relatively drawn, and the insertion port 12 is inserted inward of the receiving port 5, and the sealing member 8 is compressed by the outer peripheral surface of the insertion port 12 to seal the gap between the inner surface of the receiving port 5 and the outer surface of the insertion port 12 in a water-tight manner (see FIG. 5).

  Next, as shown in FIG. 5, the fixing between the receiving port 5 and the insertion port 12 will be described. The bolt 9 is screwed into the bulging portion 5 a of the receiving port 5 in a direction perpendicular to the tube axis C. After the gap between the inner surface of the receiving port 5 and the outer surface of the insertion port 12 is sealed, the receiving port 5 and the insertion port 12 are fixedly connected by a general-purpose bolt 9.

  Further, the fixing pawl 10 is provided at the tip of the bolt 9, and by doing so, the tip 10 a of the fixing pawl 10 is pressed toward the tube axis C by the screwing of the bolt 9, and Biting into the outer peripheral surface, the receiving port 5 and the insertion port 12 can be securely connected. Furthermore, the fixed connection as described above can stably maintain the sealing performance of the joint body even when an external force or an internal pressure is applied to the receiving port 5 or the insertion port 12.

  Note that the bolt in this embodiment does not necessarily have to be formed in a direction orthogonal to the tube axis C. For example, the bolt is screwed in an oblique direction having a predetermined angle other than the orthogonal direction to the tube axis C. It may be formed.

  Next, separation of the receiving port 5 and the insertion port 12 using the drawing member 17 in the present embodiment will be described. In the state where the receiving port 5 and the insertion port 12 are connected in a watertight manner as described above. Similarly, the insertion port fixing member 16 and the drawing member 17 are installed. The flange portion 17 a of the attracting member 17 formed in a substantially U shape is surrounded by the bulging portion of the receiving port 5.

  A rack 17b that is engaged with the pinion 17c by rotating the pinion 17c of the attracting member 17 in the direction opposite to the above by surrounding the flange portion 17a formed in a substantially U-shape with the bulging portion 5a of the receiving port 5. Moves in the opposite direction to that described above, and a force for relatively separating the receiving port 5 and the insertion port 12 is transmitted by hooking the substantially U-shaped flange portion 17a on the outer end side of the receiving port 5. It is possible to relatively separate the receiving port 5 and the insertion port 12 which are connected in a watertight manner.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above-described embodiment, the insertion port 12 and the receiving port 5 connected to each other constitute a pipe member composed of the straight pipe 2 and the straight pipe 11 as shown in FIGS. The insertion port 12 and the receiving port 5 used in the invention are not necessarily limited to the straight tube 2 and the straight tube 11 as long as they have a configuration that can be connected to each other, for example, a T-shaped tube having three end portions or a tube. An elbow pipe having a curved portion in part along the axis may be used, or a hose having flexibility may be used. Moreover, the insertion port 12 and the receiving port 5 may comprise a part of various pumps or a storage tank.

  Moreover, in the said Example, although the bolt hole 5b is formed in the outer peripheral surface of the bulging part 5a of the receptacle 5, and the volt | bolt 9 as a fixing member screwed in the bolt hole 5b is comprised, As long as a part of the outer surface bulges outward in the circumferential direction in the vicinity of the outer end of the receiving port 5 and the hooking member is hooked, the bolt hole 5b is not particularly formed. For example, the bulging portion may be a flange.

  Moreover, in the said Example, the substantially U-shaped member 20 which has an internal diameter substantially the same diameter as the outer diameter of the receiving port 5 is used as a latching member which latches the collar part 17a of the attracting member 17. FIG. However, the latching member is interposed between the flange portion 17a and the bulging portion 5a of the receiving port 5 so that the pulling force by the pulling member 17 is reliably provided in the tube axis C direction. For example, the shape of the hooking member may be formed in a ring shape in the circumferential direction of the receiving port.

  Moreover, in the said Example, although the collar part 17a of the attraction | suction member 17 is formed in the substantially U shape so that the bulging part 5a of the receptacle 5 can be enclosed, a collar part has the receptacle 5 and the insertion port. 12 is not necessarily formed in a substantially U-shape as long as it is hooked to the bulging portion 5a so as to be relatively drawable. For example, the bulging portion 5a is formed in a substantially L-shape. It may be hooked on the back side.

  Moreover, in the said Example, although the attraction | suction member 17 has the rack pinion structure which consists of the rack 17b and the pinion 17c which mutually meshed | engaged, an attraction | suction member attracts | sucks a receptacle and an insertion port. As long as there is, it is not restricted to the rack and pinion structure mentioned above, For example, a bolt nut structure may be sufficient.

It is a top view which shows the whole image of the connection means of the coupling body in the Example of this invention. It is a front view like FIG. It is a side view like FIG. (A) is a front view of a substantially U-shaped member, (b) is AA sectional drawing of (a). It is a partial cross section figure which shows the condition which connected the receptacle and the insertion opening.

Explanation of symbols

2 Straight pipe (fluid pipe)
5 Receptacle 5a Swelling part 5b Bolt hole 8 Seal member 9 Bolt 10 Fixed claw 10a Tip 11 Straight pipe (fluid pipe)
12 Insertion 16 Insertion fixing member 16a Protrusion part 16b Supporting point part 16c Bolt nut 17 Pulling member 17a Ridge part 17b Rack 17c Pinion 20 Substantially U-shaped member 20a Both end parts 20b Grip part mounting base 20c Handle part C Tube axis K Rotation tool

Claims (6)

A joint body connecting means for watertightly connecting the insertion port of the other fluid tube to the receiving port of one fluid tube, wherein a part of the outer surface of the receiving port bulges outward along the circumferential direction. Formed in the bulging part
An insertion port fixing member fixed to the outer surface of the insertion port along the circumferential direction, and a flange formed on one end side of the insertion port are engaged with the bulging portion of the receiving port, and the other end side is engaged with the insertion port fixing member. And a drawing member that draws the receiving port and the insertion port relatively in the tube axis direction,
Further, the flange is hooked to the bulging portion via a hooking member that contacts the bulging portion along the circumferential direction on the outer surface of the receiving port. means.   The joint member connecting means according to claim 1, wherein the attraction member is configured at at least two positions located substantially symmetrically with respect to the tube axis.   The hooking member is a substantially U-shaped member having an inner diameter that is substantially the same as the outer diameter of the receiving port, and the flange portions of the attracting member are hooked at both ends of the substantially U-shaped member. The joint connecting means according to claim 2, wherein the joint means is stopped.   4. The joint body connecting means according to claim 3, wherein a flange mounting table for mounting the flange is protruded from both ends of the substantially U-shaped member.   The joint body connecting means according to any one of claims 1 to 4, wherein the flange portion of the attracting member is formed in a substantially U-shape so as to surround the bulging portion of the receiving port. .   6. The joint connecting means according to claim 1, wherein the attraction member has a rack and pinion structure.

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