JP2008261450A - Connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of reducing a size of a connector body and capable of improving connection working efficiency of a pipe member with respect to the connector body. <P>SOLUTION: The connector 30 connecting a tube 10 and a pipe 20 in series is provided with the connector body 31 and an O ring 50. The connector body 31 is equipped with a first insertion port 33 to which a connection end 12 of the tube 10 is inserted, and a second insertion port 34 to which a connection end 22 of the pipe 20 insertable into the connection end 12 of the tube 10 is inserted. The O ring 50 is interposed in an overlapped part of the connection end 12 of the tube 10 inserted into the first insertion port 33 and the connection end 22 of the pipe 20 inserted into the second insertion port 34 so as to seal a gap between the connection ends 12 and 22. Locking means are provided on the connector body 31 in order to lock the tube 10 and the pipe 20 respectively. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a connector used for pipe connection.

A conventional connector (see Patent Document 1) will be described with reference to FIG. FIG. 13 is a cross-sectional view showing a conventional connector.
The tube 112 is press-fitted to a connection portion 113 provided at one end portion (left end portion in FIG. 13) of the connector main body 111 of the connector. In addition, the holding pieces 122 integrally connected to each other by the connecting pieces 124 are disposed in the opening 121 of the large-diameter cylindrical portion 117 provided at the other end portion (the right end portion in FIG. 13) of the connector main body 111. When the pipe 125 is inserted into the large-diameter cylindrical portion 117 of the connector main body 111, the distal end engaging claws 122a of the respective holding pieces 122 are elastically engaged with the engaging protrusions 127 of the pipe 125, thereby the connector main body 111. The pipe 125 is prevented from being removed. In addition, a gap between the connector main body 111 and the pipe 125 is sealed by a seal member 130 provided in the connector main body 111.

JP-A-9-317973

  According to the connector of Patent Document 1, since the tube 112 and the pipe 125 are connected to the connector main body 111 independently without overlapping, there is a problem that the size of the connector main body 111 must be increased. . In addition, since the tube 112 must be press-fitted into the connection portion 113 of the connector main body 111 so as to be expanded and deformed, the connection workability is also poor.

  Problem to be solved by the invention is providing the connector which can make a connector main body compact and can improve the connection workability | operativity of the pipe member with respect to a connector main body.

The above problem can be solved by a connector having the gist of the configuration described in the claims.
In other words, the connector according to claim 1 of the claims is a connector that pipe-connects the first tube member and the second tube member in series, and includes a connector body and a seal member. The connector body has a first insertion port for inserting the connection end of the first tube member, and the connection of the second tube member insertable into the connection end of the first tube member. A second insertion port for inserting an end portion is provided, and the sealing member is inserted into the connection end portion of the first tube member inserted into the first insertion port and the second insertion port. A stopper that is interposed between the connecting end portions of the second pipe member so as to seal between the connecting end portions, and prevents the first tube member and the second tube member from being removed from the connector body. Means are provided.

  According to the connector configured as described above, the connection of the second tube member inserted into the second insertion port into the connection end portion of the first tube member inserted into the first insertion port of the connector body. While the end portion is inserted, a seal member is interposed in an overlapping portion of the connection end portion, thereby sealing between the two connection end portions. Further, the first tube member and the second tube member are respectively secured to the connector body by the retaining means. Therefore, the connector body can be made compact. In addition, since it is not necessary to press-fit the connecting end portions of both the pipe members into the connector main body, the workability of connecting the pipe member to the connector main body can be improved. Therefore, the connector which can make the connector main body compact and can improve the connection workability of the pipe member to the connector main body is provided.

  The connector according to claim 2 of the claim is the connector according to claim 1, wherein the first tube member is a tube, and the retaining means for retaining the tube on the connector main body includes: The tube is prevented from being pulled out by being in contact with a stepped portion formed in the tube and being engaged in the first insertion port of the connector main body and sandwiching the stepped portion in cooperation with the connector main body. It is a retaining member. If comprised in this way, the securing member secured by the engagement in the 1st insertion port of a connector main body will contact | abut to the level | step-difference part of a tube, and the level | step-difference part will be pinched | interposed by cooperation with a securing member and a connector main body. Thus, the tube can be easily removed from the connector body.

  The connector according to claim 2 of the claim is the connector according to claim 1, wherein the first tube member is a tube, and the retaining means for retaining the tube on the connector main body includes: It is a protruding member that is provided on the inner peripheral surface of the first insertion port of the connector main body and prevents the first tube member from being pulled out by biting into the outer peripheral portion of the tube. With this configuration, the protruding member provided on the inner peripheral surface of the first insertion port of the connector main body bites into the outer peripheral portion of the tube, so that the tube can be easily retained from the connector main body.

  Next, the best mode for carrying out the present invention will be described with reference to examples.

[Example 1]
A first embodiment of the present invention will be described. 1 is a sectional view showing the connector, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is a sectional view taken along the line III-III in FIG. 1, and FIG. It is a perspective view. 5 is a cross-sectional view showing the connection procedure 1 of the pipe member to the connector, FIG. 6 is a cross-sectional view showing the connection procedure 2, FIG. 7 is a cross-sectional view showing the connection procedure 3, and FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8, FIG. 10 is a cross-sectional view showing connection procedure 5, and FIG. 11 is a cross-sectional view taken along line XI-XI in FIG.
As shown in FIG. 1, the connector 30 of the present embodiment is used for, for example, a hot water supply pipe, a water supply pipe, a fuel pipe, etc. for a water heater, and a tube 10 as a first pipe member and a first pipe member. The pipe 20 as the second pipe member is pipe-connected in series.

As shown in FIG. 4, the tube 10 is made of, for example, a resin and is formed in a cylindrical shape that can be bent and deformed. As shown in FIG. 5, the connecting end portion 12 of the tube 10 has a cylindrical shape whose diameter has been expanded by molding the end portion of the tube main body 11 that forms the main body of the tube 10. The connection end 12 is formed on the same axis as the tube body 11. Further, a step portion 13 is formed between the tube main body 11 and the connection end portion 12.
Moreover, as shown in FIG. 4, the said pipe 20 is metal, for example, and is formed in the cylindrical shape. A flange 23 is formed at the base of the connection end 22 of the pipe 20. The flange 23 includes a bulge that protrudes in an annular shape on the outer peripheral surface of the pipe body 21 that forms the main body of the pipe 20. The connection end 22 of the pipe 20 is formed so as to be insertable into the tube 10 through the connection end 12 of the tube 10 (see FIG. 1).

  The components constituting the connector 30 will be described. As shown in FIG. 4, the connector 30 includes a connector main body 31, an O-ring (O-ring) 50, a bush 60, a retaining member 70, and a retainer 80 as components. Hereinafter, for convenience of explanation, the connector main body 31, the bush 60, the O-ring 50, the retaining member 70, and the retainer 80 will be described in this order. For convenience of explanation, in the connector 30, the side to which the tube 10 is connected is referred to as a rear side, and the side to which the pipe 20 is connected is referred to as a front side.

  The connector body 31 will be described. As shown in FIG. 4, the connector main body 31 is made of, for example, resin and is formed in a cylindrical shape. As shown in FIG. 6, the rear opening portion (left opening portion in FIG. 6) of the outer cylinder portion 32 that forms the main body of the connector main body 31 is a first insertion port into which the connection end portion 12 of the tube 10 can be inserted. 33. Moreover, the front opening part (right opening part in FIG. 6) of the outer cylinder part 32 is the 2nd insertion port 34 which can insert the connection end part 22 (including the flange 23) of the said pipe 20. As shown in FIG. (See FIG. 10). As shown in FIG. 6, an annular annular wall portion 35 is formed on the inner peripheral surface of the central portion of the outer cylindrical portion 32, and has a cylindrical shape extending rearward from the inner peripheral end portion of the annular wall portion 35. An inner cylinder portion 36 is formed. The outer cylindrical portion 32, the annular wall portion 35, and the inner cylindrical portion 36 form a cylindrical fitting recess 37 that opens rearward (leftward in FIG. 6). The fitting recess 37 is formed so that the tip of the connection end 12 of the tube 10 can be fitted. Moreover, the inner cylinder part 36 is formed so that the connection end part 22 of the pipe 20 can be inserted in the hollow part (refer FIG. 1).

  As shown in FIG. 6, a flange 38 projecting radially outward is formed on the outer peripheral surface of the front end portion of the outer cylinder portion 32 (see FIG. 4). In addition, a pair of left and right insertion holes 39 adjacent to the rear side of the flange 38 (left side in FIG. 6) are formed symmetrically on the upper portion of the outer cylinder portion 32 (see FIG. 11). As shown in FIG. 11, a wall portion 32 a positioned between both insertion holes 39 is formed at the upper end portion of the outer cylinder portion 32 by forming both insertion holes 39. In addition, a pair of left and right receiving holes 40 corresponding to both insertion holes 39 are formed symmetrically in the lower part of the outer cylinder part 32 (see FIG. 6). As shown in FIG. 6, detection holes 41 communicating in a concave shape toward the rear (left side in FIG. 6) are formed in the upper portions of both receiving holes 40. In addition, a pair of left and right guide convex portions 42 adjacent to the upper side of both detection holes 41 are formed on the outer peripheral surface of the outer cylinder portion 32 symmetrically, and a pair of left and right adjacent to the lower side of the detection hole 41 is formed. Are formed symmetrically (see FIG. 11). In addition, a pair of engagement holes 44 penetrating in the radial direction is formed at the rear end portion of the outer cylinder portion 32 (see FIG. 6).

  Next, the bush 60 will be described. As shown in FIG. 5, the bush 60 is made of, for example, resin and is formed in a cylindrical shape that can be fitted into the connection end portion 12 of the tube 10 (see FIG. 4). The bush 60 has an inner diameter substantially equal to the inner diameter of the tube main body 11 of the tube 10 and the inner cylindrical portion 36 of the connector main body 31 (see FIG. 1).

  Next, the O-ring 50 will be described. As shown in FIG. 5, the O-ring 50 is formed in an annular shape from a rubber-like elastic material. The O-ring 50 is formed so that it can be elastically fitted to the connection end 12 of the tube 10 and can be elastically fitted to the connection end 22 of the pipe 20 (see FIGS. 1 and 3). . The O-ring 50 corresponds to a “seal member” in this specification.

  Next, the retaining member 70 will be described. As shown in FIG. 4, the retaining member 70 is made of, for example, resin and is formed in a C ring shape. The retaining member 70 can be externally fitted to the tube main body 11 of the tube 10 by utilizing the elasticity in the diameter increasing direction, and is fitted in the rear end portion of the outer cylindrical portion 32 of the connector main body 31 in a fitted state with the tube main body 11. (See FIGS. 1 and 9). On the outer peripheral surface of the retaining member 70, a pair of upper and lower engaging claws 71 that can be engaged with the engaging hole 44 of the connector main body 31 are formed. The outer surfaces of both the locking claws 71 are formed in a tapered shape (see FIG. 8). The retaining member 70 corresponds to “a retaining means for retaining the first tube member (tube) from the connector main body” in the present specification.

  Next, the retainer 80 will be described. As shown in FIG. 4, the retainer 80 is of a push lock type and has the same configuration as that described in, for example, Japanese Patent Application Laid-Open No. 2004-251319, and will be briefly described. The retainer 80 is made of resin, and includes a substrate portion 81, a pair of left and right leg pieces 82, a pair of left and right retaining pieces 83, and a pair of left and right guide pieces 84. The retainer 80 corresponds to “a retaining means for retaining the second pipe member (pipe) from the connector main body” in this specification.

  The substrate portion 81 is formed in an arc plate shape having a central portion higher than both end portions (see FIG. 11). The board part 81 is formed so as to be able to be fitted to the outer cylinder part 32 of the connector main body 31 from above. Further, the pair of left and right leg pieces 82 extend downward in parallel from both left and right end portions of the front portion of the substrate portion 81. Both leg pieces 82 are formed to be elastically deformable, that is, to be able to bend and deform in a direction in which the lower end portions are expanded in the opposite direction (see a two-dot chain line 82 in FIG. 11). A detection projection 85 is formed at the lower end of each leg piece 82 so as to project in an opposing manner.

  As shown in FIG. 11, the left and right retaining pieces 83 extend symmetrically downward in the inner side of both leg pieces 82. A locking groove 86 having an inverted U shape and capable of relatively receiving the pipe body 21 of the pipe 20 in the radial direction is formed between the two stopper pieces 83. Both retaining pieces 83 are formed so as to be able to be inserted into the both insertion holes 39 of the connector body 31 from above. Further, an interrupt groove 87 is formed between the upper end portions of both retaining pieces 83. The interrupt groove 87 is formed so as to be able to relatively receive the wall portion 32 a of the outer cylinder portion 32 of the connector main body 31. As shown in FIG. 4, the pair of left and right guide pieces 84 extend downward in parallel from both left and right end portions of the rear portion of the substrate portion 81. Both guide pieces 84 are fitted so as to be slidable in the vertical direction along both side surfaces of the outer cylinder portion 32 of the connector main body 31.

Next, an example of a connection procedure for connecting the tube 10 and the pipe 20 with the connector 30 will be described.
<Connection procedure 1>
As shown in FIG. 5, a bush 60 and an O-ring 50 corresponding to the connection end 12 of the tube 10 are prepared.
<Connection procedure 2>
As shown in FIG. 6, the bush 60 is fitted into the connection end portion 12 of the tube 10 and brought into contact with the stepped portion 13 of the tube 10. Subsequently, the O-ring 50 is elastically fitted into the connection end 12 of the tube 10 and is brought into contact with or close to the front end surface of the bush 60. A connector main body 31 corresponding to the connection end 12 of the tube 10 is prepared.

<Connection procedure 3>
As shown in FIG. 7, the connection end 12 of the tube 10 is inserted into the first insertion port 33 of the connector body 31, and the connection end of the tube 10 is inserted into the fitting recess 37 (see FIG. 6) of the connector body 31. The tip of the part 12 is fitted. Thereby, the incorrect assembly | attachment of the tube 10 with respect to the connector main body 31 (attachment with inclining) can be prevented or reduced. At the same time, the O-ring 50 comes into contact with or comes close to the rear end surface of the inner cylindrical portion 36 of the connector main body 31. Thereby, the O-ring 50 is positioned between the bush 60 and the inner cylinder portion 36. Further, the retaining member 70 is externally fitted to the tube main body 11 of the tube 10 using the elasticity in the diameter expansion direction.

<Connection procedure 4>
As shown in FIG. 8, the retaining member 70 is externally fitted to the tube main body 11 of the tube 10 using the elasticity in the diameter expansion direction. Subsequently, the retaining member 70 is slid forward and pushed into the first insertion port 33 (see FIG. 7) of the connector main body 31. Thereby, the latching claw 71 of the retaining member 70 is engaged with the engaging hole 44 of the connector body 31 using the elasticity of the retaining member 70 and the tube 10 (see FIG. 8). As a result, the retaining member 70 is retained in the outer cylindrical portion 32 of the connector main body 31, and the tube 10 is retained from the connector main body 31 by contacting the stepped portion 13 of the tube 10 with the retaining member 70. (See FIG. 9). Also, a retainer 80 corresponding to the upper part of the front end portion of the connector main body 31 is prepared (see FIG. 8).

<Connection procedure 5>
As shown in FIGS. 10 and 11, the retainer 80 is temporarily fixed to the connector main body 31. That is, as the retainer 80 is pushed down, the two detection protrusions 85 of the retainer 80 slide along the outer peripheral surface of the outer cylindrical portion 32 of the connector body 31, and the both leg pieces 82 are elastically deformed in the expanding direction (see FIG. 11, refer to a two-dot chain line 82). When both detection projections 85 correspond to both detection holes 41, both leg pieces 82 are elastically restored, whereby both detection projections 85 are engaged in both detection holes 41, and the tip portions of both detection projections 85 are It protrudes in the outer cylinder part 32 (refer FIG. 11). Further, the lower end portions of both retaining pieces 83 of the retainer 80 are inserted into the both insertion holes 39 of the connector main body 31. Further, the lower end portions of both guide pieces 84 of the retainer 80 correspond to both side surfaces of the outer cylinder portion 32 of the connector main body 31. In this way, the retainer 80 is temporarily fixed to the connector main body 31.

<Connection procedure 6>
As shown in FIGS. 1 and 2, the connection end 22 of the pipe 20 is inserted into the second insertion port 34 of the connector main body 31. At this time, the connection end portion 22 of the pipe 20 is inserted into the inner cylinder portion 36 of the connector body 31, the O-ring 50, and the bush 60 in order, and the flange 23 of the pipe 20 is inserted into the annular wall portion 35 of the connector body 31. (See FIG. 1). As a result, the pipe 20 is inserted into the regular connection position of the connector main body 31. In this state, as shown in FIG. 3, the O-ring 50 is elastically fitted around the outer peripheral surface of the connection end 22 of the pipe 20. Accordingly, the connection end portion 22 of the pipe 20 is inserted into the connection end portion 12 of the tube 10, and the O-ring 50 is interposed in the overlapping portion of the connection end portions 12, 22. 22 is sealed (see FIGS. 1 and 3).

  Further, when the pipe 20 is inserted into the regular connection position of the connector body 31, the flange 23 of the pipe 20 enters between the detection projections 85 of the both leg pieces 82 of the retainer 80, so that both the leg pieces 82 are expanded. It is elastically deformed (see the two-dot chain line 82 in FIG. 11). As a result, the engagement of both detection protrusions 85 with respect to both detection holes 41 of the connector main body 31 is released, and the retainer 80 can be moved downward. That is, unless the pipe 20 is inserted into the regular connection position of the connector main body 31, the engagement of the detection protrusions 85 with respect to the detection holes 41 is not released, and the retainer 80 cannot be moved downward. For this reason, the pipe 20 is reinserted into the regular connection position of the connector main body 31.

  Subsequently, when the retainer 80 is pushed downward, the retainer 80 is moved downward as shown in FIG. Then, the detection projections 85 of the both leg pieces 82 are lowered while sliding along the outer surfaces of the both engaging projections 43 of the connector main body 31 by utilizing the elasticity of the both leg pieces 82, and finally the both engagements. By passing through the stop projection 43, both leg pieces 82 are elastically restored. Then, both the detection protrusions 85 are engaged with the lower sides of the both locking projections 43, so that the upward movement of the retainer 80 is restricted. At the same time, the wall portion 32a of the connector main body 31 is relatively engaged with the interrupting groove 87 of the retainer 80, whereby the downward movement of the retainer 80 is restricted. Further, both the retaining pieces 83 engage with the connection end portion 22 of the pipe 20 on the opposite side of the flange 23, that is, on the front side. As a result, the pipe 20 is prevented from being removed from the connector main body 31.

  According to the connector 30 described above, the connection end 22 of the pipe 20 inserted into the second insertion port 34 in the connection end 12 of the tube 10 inserted into the first insertion port 33 of the connector main body 31. Is inserted, and an O-ring 50 is interposed in an overlapping portion of the connection ends 12 and 22, thereby sealing between the connection ends 12 and 22 (see FIGS. 1 and 3). In addition, the tube 10 is secured to the connector body 31 by the retaining member 70, and the pipe 20 is secured to the connector body 31 by the retainer 80. Therefore, the connector main body 31 can be made compact, that is, compact in the length direction (left-right direction in FIG. 1). Moreover, since it is not necessary to press-fit the connection end 22 of the tube 10 and the pipe 20 into the connector main body 31, the workability of connecting the tube 10 and the pipe 20 to the connector main body 31 can be improved. Therefore, the connector 30 is provided that can make the connector body 31 compact and improve the connection workability of the tube 10 and the pipe 20 to the connector body 31.

  Further, by inserting the connection end portion 12 of the tube 10 into the outer cylinder portion 32 of the connector main body 31, the diameter expansion deformation of the connection end portion 12 of the tube 10 is suppressed, so that an overlapping portion of the connection end portion 12 is formed. The sealing performance between the connection end portions 12 and 22 can be improved by the arranged O-ring 50.

  Further, the retaining member 70 that is retained by engagement in the first insertion port 33 of the connector main body 31 abuts on the stepped portion 13 of the tube 10, and the stepped portion 13 cooperates with the retaining member 70 and the connector main body 31. By being sandwiched by the action, the tube 10 can be easily removed from the connector body 31 (see FIGS. 8 and 9).

  Further, since the O-ring 50 is arranged between the inner cylinder portion 36 of the connector main body 31 and the bush 60, the O-ring 50 can be properly arranged (see FIG. 1). In addition, even if there is a “sag” in the stepped portion 13 of the tube 10, the O-ring 50 can be properly disposed, so that a sealing failure can be prevented or reduced.

[Example 2]
A second embodiment of the present invention will be described. Since the present embodiment is a modification of the connector 30 of the first embodiment, the changes will be described in detail, and redundant description will be omitted. FIG. 12 is a cross-sectional view showing the connector.
As shown in FIG. 12, instead of the retaining member 70 in the first embodiment, an appropriate number of annular small protrusions 34a are provided in the axial direction on the inner peripheral surface of the first insertion port 33 of the outer cylindrical portion 32 of the connector body 31. These are arranged in parallel (five are shown in FIG. 12). Accordingly, the engagement hole 44 of the connector main body 31 can be omitted.

  According to the present embodiment, when the connection end 12A of the tube 10A is inserted into the first insertion port 33, the small protrusion 34a provided on the inner peripheral surface of the first insertion port 33 of the connector main body 31 has the tube 10A. The tube 10A can be easily removed from the connector body 31 by biting into the outer periphery of the connector body 31. The small projections 34a correspond to “projection-like members” and “prevention means for retaining the first tube member (tube) from the connector main body” in the present specification. In the present embodiment, the tube 10A may be formed of a rubber-like elastic material.

  The present invention is not limited to the above-described embodiments, and modifications can be made without departing from the gist of the present invention. For example, any one of the connector main body 31, the tube 10, the retaining member 70, and the bush 60 can be made of metal instead of resin. The pipe 20 can be made of resin instead of metal. Further, the bush 60 can be omitted. Further, the sealing member may be a member that seals between the connection end portions 12 and 22, and is not limited to the O-ring 50 of the above-described embodiment. As the first pipe member, a pipe material, a hose material, or the like can be used instead of the tube 10. As the second pipe member, a tube material can be used instead of the pipe 20.

  In addition, as long as the connection end of the second pipe member overlaps the connection end of the first pipe member in the connector main body 31, the retaining means of the two pipe members relative to the connector main body 31 should be changed as appropriate. Can do. For example, as a retaining means for retaining the tube 10 from the connector body 31, a means for bonding and integrating the connection end 12 of the tube 10 in the outer tube portion 32 of the connector body 31, an outer tube portion of the connector body 31 A means for caulking the connecting end portion 12 of the tube 10 in the tube 32 and a means for integrating the connector main body 31 with the connecting end portion 12 of the tube 10 by injection molding can be used. With such a retaining means, the engagement hole 44 of the connector body 31 can be omitted.

  Further, as a retaining means for retaining the pipe 20 in the connector main body 31, instead of the push lock type retainer 80 of the above-described embodiment, the pipe 20 is formed in a C-shape and uses its radial elasticity. Retainer for retaining, rotating retainer for retaining pipe 20 by rotation, wire retainer formed of wire and retaining pipe 20 using its elasticity, and each holding described in Patent Document 1 A retaining means or the like by the piece 122 (see FIG. 13) can be used.

It is sectional drawing which shows the connector which concerns on Example 1 of this invention. It is the II-II sectional view taken on the line of FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 1. It is a disassembled perspective view which shows the component of a connector. It is sectional drawing which shows the connection procedure 1 of the pipe member with respect to a connector. It is sectional drawing which shows the connection procedure 2 of the pipe member with respect to a connector. It is sectional drawing which shows the connection procedure 3 of the pipe member with respect to a connector. It is sectional drawing which shows the connection procedure 4 of the pipe member with respect to a connector. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 8. It is sectional drawing which shows the connection procedure 5 of the pipe member with respect to a connector. It is XI-XI sectional view taken on the line of FIG. It is sectional drawing which shows the connector which concerns on Example 2 of this invention. It is sectional drawing which shows the connector which concerns on a prior art example.

Explanation of symbols

10 Tube (first pipe member)
12 Connection end portion 13 Stepped portion 20 Pipe (second pipe member)
22 connection end 30 connector 31 connector body 33 first insertion port 34 second insertion port 50 O-ring (seal member)
70 Retaining member (Retaining means)
80 Retainer (Retaining means)

Claims (3)

A connector that pipe-connects a first pipe member and a second pipe member in series,
A connector body and a seal member;
The connector body has a first insertion port for inserting the connection end of the first tube member, and a connection end of the second tube member insertable into the connection end of the first tube member. A second insertion port for inserting the portion is provided,
The seal member overlaps a connection end portion of the first tube member inserted into the first insertion port and a connection end portion of the second tube member inserted into the second insertion port. Is interposed between the two connection ends so as to be sealable,
A connector characterized in that the connector main body is provided with retaining means for retaining the first tube member and the second tube member, respectively. The connector according to claim 1,
The first pipe member is a tube;
A retaining means for retaining the tube from the connector body is brought into contact with a stepped portion formed in the tube and is engaged in a first insertion port of the connector body, and the stepped portion is connected to the connector. A connector that is a retaining member that retains the tube by being sandwiched in cooperation with a main body. The connector according to claim 1,
The first pipe member is a tube;
A retaining means for retaining the tube from the connector main body is provided on the inner peripheral surface of the first insertion port of the connector main body, and the first pipe member is removed by biting into the outer peripheral portion of the tube. A connector characterized by being a protruding member to be stopped.

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