TWM479372U - Pipe joint structure of telescopic water pipe - Google Patents

Description

Pipe joint structure of telescopic water pipe

The present invention relates to the technical field of a water pipe joint, and more particularly to a pipe joint structure for locking a water pipe having flexibility.

According to the structure of the joint 900 used in the telescopic water pipe, as shown in FIGS. 6 to 9, a pipe body 920 and a lock 940 connected to the pipe body 920 are included. The end of the telescopic water pipe 960 is provided by the socket 920 at one end of the pipe body 920, and the socket 922 and the fastener 940 form a single tight clamping on the pipe wall of the telescopic water pipe 960.

The telescopic water pipe 960 expands and deforms the pipe wall due to the water pressure and has an elongation function at the same time, and this expansion and elongation deformation causes the pipe wall of the telescopic water pipe 960 to be thinned, so that the original tight clamping and tightness are properly performed. The form is weakened or lost due to thinning of the pipe wall, which causes water leakage easily, and in severe cases, the telescopic water pipe 960 and the joint 900 are deviated. The problem of the thinning of the wall of the telescopic water pipe can be fully known from the contents and illustrations of U.S. Patent No. 8,291,941 and U.S. Patent No. 8,291,942.

In view of the above problems and shortcomings of the prior art, one of the creations The purpose is to provide a pipe joint structure of a telescopic water pipe. By means of multiple pipe clamping mechanisms such as multiple clamping and pressing, it is known that only a single locking mechanism is known, and the pipe wall thickness is easily caused by the extension and deformation of the telescopic water pipe. Thinning, thereby weakening or losing the clamping and tightness of the locking water pipe, and leading to the lack of water leakage.

Another object of the present invention is to provide a pipe joint structure of a telescopic water pipe, and provide an expansion space in the pipe joint, so that after the expansion pipe is expanded and deformed, the inside of the pipe joint naturally forms a tight locking, and the water pipe is appropriately offset. The interaction force with the pipe joint acts as a multiple pressing point, and at the same time disperses and offsets the force of the water pipe and the pipe joint to ensure the tightness of the pipe joint and the telescopic pipe.

According to the above object of the present invention, a pipe joint structure of a telescopic water pipe is provided, comprising: a pipe body, the pipe body is provided with an external thread and a set of joints at one end, a pressing piece clamped to the sleeve joint, and a screw a first pipe member connected to the pipe body, the inner surface of the first pipe member is provided with a first inclined tapered surface for tapping the pressing member, and a second tubular member screwed to the pipe body, the second pipe The inner surface of the pipe member is provided with a constricted neck having an inner diameter and an expansion space. With the composition of the above-mentioned components, it is used in conjunction with the telescopic water pipe to provide multiple limit locking and locking structures, and to solve the joint of the conventional single limit locking structure, weakening or losing the limit constraint when the wall of the telescopic water pipe is thinned The effect is that there is a lack of water leakage or detachment.

100‧‧‧ pipe joint

120‧‧‧ tube body

121‧‧‧ joints

122‧‧‧ watercourse

124‧‧‧ external thread

126‧‧‧ neck

127‧‧‧ rear end face

128‧‧‧ head

129‧‧‧Slanted taper

140‧‧‧forced parts

142‧‧‧Inner taper

144‧‧‧External taper

160‧‧‧First pipe fittings

162‧‧‧Connected external thread

164‧‧‧ internal thread

165‧‧‧First tapered surface

166‧‧‧second tapered surface

180‧‧‧Second pipe fittings

182‧‧‧Connect internal thread

184‧‧ ‧ neck

186‧‧‧Expansion space

188‧‧‧Back slope

400‧‧‧ Telescopic water pipes

402‧‧‧ first paragraph

404‧‧‧second paragraph

406‧‧‧ third paragraph

408‧‧‧ fourth paragraph

900‧‧‧Connector

920‧‧‧ tube body

922‧‧‧ Sockets

940‧‧‧Locker

960‧‧‧ Telescopic water pipes

Fig. 1 is a schematic view showing an embodiment of a pipe joint structure of a telescopic water pipe.

Fig. 2 is an exploded view of the embodiment of the pipe joint structure of the present invention.

Fig. 3 is a schematic cross-sectional view showing the embodiment of the pipe joint structure of the telescopic water pipe.

Fig. 4 is a schematic cross-sectional view showing another embodiment of the pipe joint structure of the present invention.

Fig. 5 is a schematic cross-sectional view showing a second embodiment of the pipe joint structure of the telescopic water pipe.

Fig. 6 is a schematic view showing an embodiment of a joint structure of a telescopic water pipe.

Fig. 7 is a schematic exploded view of a conventional joint structure of a telescopic water pipe.

Fig. 8 is a schematic cross-sectional view showing an embodiment of a joint structure of a telescopic water pipe.

Fig. 9 is a schematic cross-sectional view showing another embodiment of the joint structure of the telescopic water pipe.

Hereinafter, the embodiment of the pipe joint structure of the present retractable water pipe will be further described with reference to the related drawings. In order to facilitate the understanding of the present embodiment, the same components are denoted by the same symbols.

Referring to Figures 1 to 4, the pipe joint 100 of the telescopic water pipe of the present invention comprises: a pipe body 120, a set of pressing members 140 attached to the pipe body 120, and a screwing connection to the pipe body 120. First pipe member 160, and a screw The second tubular member 180 is coupled to the first tubular member 160. A telescopic water pipe 400 is connected by the composition of the above members to ensure the connection of the telescopic water pipe 400.

The tube body 120 includes a set of joints 121, a water channel 122, an external thread 124, a neck portion 126, a head portion 128 and a tapered surface 129. The sleeve joint 121 and the external thread 124 are sequentially formed on the front end of the pipe body 120, and the water passage 122 is formed through the sleeve joint 121 and the body 120 in the axial direction, and the sleeve joint 121 provides one end of the telescopic water pipe 400. The sleeve joint 121 further includes a sloped neck portion 126 and a head portion 128, and the outer surface of the head portion 128 has a tapered surface 129, and the head portion 128 is in the form of a truncated cone.

The pressing member 140 has a C-shaped buckle with a truncated cone and is clamped to the neck 126 of the sleeve joint 121, and the inner and outer surfaces of the pressing member 140 respectively have an inner inclined taper surface 142 and an outer oblique taper surface. 144, by the height difference between the neck 126 and the head 128 and the external thread 124, the pressing member 140 is restrained, so that the tapered surface 142 of the pressing member 140 can be tapered with the inclination of the neck portion 126, as opposed to The bundle of telescopic water pipes 400 is formed.

The first pipe member 160 is provided with a telescopic water pipe 400 extending therein, and includes a connecting external thread 162, an internal thread 164, a first inclined tapered surface 165 and a second inclined tapered surface 166. The connecting external thread 162 and the internal thread 164 are respectively formed on the outer surface and the inner surface of the first tubular member 160, and the first inclined tapered surface 165 and the second inclined tapered surface 166 are along the first tubular member 160 at different oblique angles. The inner surface is formed and the inner diameter of the first tubular member 160 is contracted from the end of the internal thread 164 toward the end of the connecting external thread 162. In addition, the first pipe member 160 utilizes the internal thread 164 to correspond to the external thread of the pipe body 120. 124, the first pipe member 160 is connected to the pipe body 120, and the tapered portion 144 of the pressing member 140 is tapered by the first inclined tapered surface 165 of the first pipe member 160 to force the inner portion of the pressing member 140. The tapered surface 142 forms a taper with the neck 126, and the second tapered surface 166 forms a taper with the tapered surface 129 of the outer surface of the head 128, and the opposite side of the telescopic water tube 400 is clamped.

The second tube member 180 is provided with a telescopic water pipe 400 extending therein, and includes a connecting internal thread 182, a constricted portion 184, an expansion space 186 and a rear slope surface 188. The connecting internal thread 182 and the constricted portion 184 are respectively formed at two ends of the inner surface of the second tubular member 180, and the inner diameter of the second tubular member 180 is contracted by the constricted portion 184 to form an expansion on the constricted portion 184 side. The space 186 (i.e., where the second tube member 180 is joined to the first tube member 160) provides a margin for expansion deformation of the telescoping tube 400 and forms a resistance to the slope 188 after the expansion and contraction of the telescoping tube 400 and the constricted portion 184. The second tubular member 180 connects the first tubular member 160 by means of a connecting internal thread 182 corresponding to the connecting external thread 162 of the first tubular member 160.

When the pipe joint 100 is used in conjunction with a telescopic water pipe 400, the telescopic water pipe 400 extends through the second pipe member 180 and the first pipe member 160, and one end is sleeved on the sleeve joint 121 of the pipe body 120 (the neck portion 126 and The head portion 128) is received in the telescopic water tube 400, and the pressing member 140 is fastened to the neck portion 126. When the first tube member 160 is screwed to the tube body 120, the first tube member 160 is first inclined. The tapered surface 165 forms a taper to the tapered tapered surface 144 of the pressing member 140, forcing the tapered tapered surface 142 of the pressing member 140 to form a taper with the neck portion 126, and the telescopic water tube 400 is disposed in the middle of the clamping member. a section 402 forms a bundle; in addition, The second section 404 of the shrinkage pipe 400 is forced by the gap between the pressing member 140 and the rear end surface 127 of the head 128 to wrap a plurality of corner points, thereby folding the second section 404 of the telescopic water pipe 400; and then the first pipe member 160 The second tapered surface 166 is tapered to fit the tapered surface 129 of the outer surface of the head 128, and is formed by the third section 406 of the telescopic water tube 400 sandwiched therebetween.

In addition to the multiple connection structures such as the above-mentioned bundle, angle and tension clamping, the telescopic water pipe 400 is further provided by the constricted neck 184 of the second pipe member 180 and the expansion space 186 adjacent to the larger inner diameter between the first pipe members 160. When the telescopic water pipe 400 is connected to the water source and the water pressure is formed in the telescopic water pipe 400, the pipe wall of the telescopic water pipe 400 expands and deforms due to the water pressure, so that the original pipe wall is thinned, and the telescopic water pipe 400 The four segments 408 can be expanded and deformed in the expansion space 186 of the second tubular member 180, and by the expansion deformation of the fourth segment 408, a limit jam is formed with the slope 188 after the constricted portion 184, and the moderate degree is moderated. Offset the water pipe by the external force acting on the pipe joint.

In addition, referring to FIG. 5, the first and second tubular members 160 and 180 of the present invention may be integrally formed during implementation, thereby omitting the structure of the connecting external thread 162 and the connecting internal thread 182, and providing another implementation scheme. The rest of the structure and the operation mode of the related components are the same as those of the above embodiment, and therefore will not be further described.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the present embodiment, and the average variation made by those skilled in the art according to the present creation. And changes known to those skilled in the art should still be covered by this creation. range.

100‧‧‧ pipe joint

120‧‧‧ tube body

160‧‧‧First pipe fittings

180‧‧‧Second pipe fittings

Claims (10)

A pipe joint structure of a telescopic water pipe, comprising: a pipe body, a water passage is arranged in the axial direction, and one end of the pipe body is sequentially provided with an external thread and a set of joints; and a pressing member is attached to the sleeve joint, The outer surface of the pressing member forms an outer tapered surface; a first tubular member is screwed to the tubular body, and an outer surface is provided with a connecting external thread, and one end of the inner surface of the first tubular member is provided with an external thread The inner thread corresponding to the position, the other end is provided with a first inclined tapered surface which is limited to the inner diameter of the first tubular member, and the first inclined tapered surface forms a taper with the outer inclined tapered surface; and a second The pipe member is screwed to the first pipe member, and the two ends of the inner surface of the second pipe member are respectively provided with a connecting internal thread, and a constricted neck for limiting the inner diameter of the second pipe member, the connecting internal thread and the connecting portion a threaded position corresponding to the inner surface of the second tubular member between the constricted portion and the first tubular member, wherein an expansion space is formed, and an inner diameter of the second tubular member in the expansion space is larger than the second tubular member The inner diameter of the neck. The pipe joint structure of the telescopic water pipe according to claim 1, wherein the sleeve comprises a neck portion and a head portion, and the neck portion forms a height difference with the external thread and the head portion, respectively. The pipe joint structure of the telescopic water pipe according to claim 2, wherein the neck has a slope; and the inner surface of the pressing member has an inner inclined taper surface, wherein the inner inclined taper surface and the neck The taper is tight. The pipe joint structure of the telescopic water pipe according to claim 2, wherein the outer surface of the head has a tapered surface; and the inner surface of the first pipe member further comprises an inner surface formed along the first pipe member. a second inclined tapered surface, wherein the slope of the second inclined tapered surface is different from the first inclined tapered surface, and the second inclined tapered surface cooperates with the inclined tapered surface of the outer surface of the head to form a taper tight. The pipe joint structure of the telescopic water pipe according to claim 4, wherein the first inclined taper surface and the second inclined taper surface are contracted from the female thread end toward the connecting external thread end to the first pipe member the inside diameter of. A pipe joint structure of a telescopic water pipe, comprising: a pipe body, a water passage is arranged in the axial direction, and one end of the pipe body is sequentially provided with an external thread and a set of joints; and a pressing member is attached to the sleeve joint, The outer surface of the pressing member forms an outer tapered surface; a first tubular member is screwed to the tubular body, and an outer surface is provided with a connecting external thread, and one end of the inner surface of the first tubular member is provided with an external thread The inner thread corresponding to the position, the other end is provided with a first inclined tapered surface which is limited to the inner diameter of the first tubular member, and the first inclined tapered surface forms a taper with the outer inclined tapered surface; and a second The tubular member is integrally formed with the first tubular member, the inner surface of the second tubular member is provided with a constricted portion that constricts the inner diameter of the second tubular member, and the inner surface of the second tubular member is between the constricted portion and the first tubular member An expansion space is formed, and an inner diameter of the second tubular member in the expansion space is larger than an inner diameter of the second tubular member at the constricted portion. The pipe joint structure of the telescopic water pipe according to claim 6, wherein the sleeve comprises a neck portion and a head portion which respectively form a height difference from the external thread and the head portion. The pipe joint structure of the telescopic water pipe according to claim 7, wherein the neck portion has a slope; and the inner surface of the pressing member has an inner inclined taper surface, wherein the inner inclined taper surface and the neck portion The taper is tight. The pipe joint structure of the telescopic water pipe according to claim 7, wherein the outer surface of the head has a tapered surface; and the inner surface of the first pipe member further comprises an inner surface formed along the first pipe member. a second inclined tapered surface, wherein the slope of the second inclined tapered surface is different from the first inclined tapered surface, and the second inclined tapered surface cooperates with the inclined tapered surface of the outer surface of the head to form a taper tight. The pipe joint structure of the telescopic water pipe according to claim 9, wherein the first inclined taper surface and the second inclined taper surface are contracted from the female thread end toward the connecting external thread end to the first pipe member the inside diameter of.