CN215371508U - Pipeline joint and faucet auxiliary device - Google Patents

Abstract

The application discloses pipeline connects and leading auxiliary device, pipeline connect including locating component, adaptor and sealing member, and locating component includes casing, chuck and a plurality of jack catchs that are used for hugging closely the pipeline, utilizes the driven mode of meshing to drive a plurality of jack catchs and remove and switch between the clamping position of hugging closely the pipeline and the unblock position of unclamping the pipeline in the guiding hole on the casing for casing pivoted chuck. The adapter and the pipeline jointly clamp the sealing element, the positioning assembly is matched with the stop surface of the adapter through the limiting surface to limit the axial displacement of the adapter along the shell, and the sealing element is respectively sealed with the pipeline and the adapter to form an overflowing channel communicated with the pipeline. The faucet auxiliary device comprises the pipeline joint and a faucet water purifier, a faucet water heater or a faucet bubbler which are detachably connected with the switching part of the switching piece. The pipeline joint and the faucet auxiliary device have the advantages of good sealing performance, simplicity in operation, wide application range and the like.

Description

Pipeline joint and faucet auxiliary device

Technical Field

The application relates to the technical field of water path connection, in particular to a pipeline joint and a faucet auxiliary device.

Background

Tap is the common instrument that is used for controlling rivers size and rivers break-make in life, because ordinary tap only has the effect of control rivers, can not carry out further processing to water, can't satisfy user's diversified water demand, consequently, has appeared on the market that diversified auxiliary device such as tap water purifier, tap water heater or tap bubbler purified, heat or change water shape etc. to the water that tap flows to satisfy the different water demand of user.

Auxiliary devices such as current tap water purifier pass through universal joint and are connected with tap, and current universal joint includes little silica gel cover, big silica gel cover, plastic casing and stainless steel clamp, and the little silica gel cover outside is located to big silica gel cover, and the big silica gel cover outside is located to the plastic casing cover, and the plastic casing outside is located to the stainless steel clamp cover. When the universal joint is installed, if the faucet is a faucet with a smaller caliber, the silica gel sleeve is directly sleeved on the outer side of the faucet, then the clamp is screwed down, the plastic shell is surrounded and pressed by the clamp, and then the plastic shell extrudes the silica gel sleeve, so that the universal joint is fastened on the faucet; if the tap is a tap with a large caliber, the small silica gel sleeve inside the tap needs to be taken out firstly, then the large silica gel sleeve is sleeved outside the tap, and then the clamp is screwed down, so that the universal joint is fastened on the tap.

Based on the structure and the mounting means of current universal joint, current universal joint mainly has following problem:

1. the requirement on the hardness of silica gel cover is higher, and too hard not only is difficult to be propped open, also can lead to with the laminating effect of tap outer wall not good, too soft leads to the compressive force not enough and drops easily again to too soft fold gap appears easily and leads to leaking, consequently has higher to the processing requirement of product, has increased manufacturing cost.

2. The installation is loaded down with trivial details: the existing universal joint is provided with an inner silica gel sleeve and an outer silica gel sleeve, and when a large-diameter water faucet is installed, the inner small silica gel sleeve needs to be taken out and then installed; and the clamp needs to be screwed down by a screwdriver after installation.

3. Unreliable sealing: the existing universal joint and the water faucet are sealed by depending on the fact that the outer wall of the water faucet abuts against a silica gel sleeve, and water leakage is easily caused due to untight fitting caused by the fact that the outer wall of the water faucet is not smooth; moreover, the existing universal joint realizes fixation and sealing by utilizing the circumferential pressure of the clamp, a plastic shell is further arranged between the clamp and the silica gel sleeve, the pre-tightening force required by sealing is not easy to judge, the tightening is not in place, the water leakage risk can be caused, and the empirical requirement on an operator is higher.

4. The adaptability is low: the existing universal joint is only suitable for a water faucet with a round water outlet end, and meanwhile, a long length is required to be reserved at the water outlet end of the water faucet so as to provide enough contact length for a silica gel sleeve, and the installation reliability can be ensured.

SUMMERY OF THE UTILITY MODEL

The present application provides a pipe joint to solve at least one of the above technical problems.

The technical scheme adopted by the application is as follows:

a pipe coupling comprising:

the positioning assembly comprises a shell, a chuck and a plurality of clamping jaws for tightly holding a pipeline, the plurality of clamping jaws are arranged at intervals along the circumferential direction of the shell, the shell is provided with a guide hole matched with the clamping jaws, the clamping jaws move along the axial direction of the guide hole to have a clamping position matched with each other to tightly hold the pipeline and an unlocking position for releasing the pipeline, the chuck is in meshing transmission with the clamping jaws, and the chuck can rotate relative to the shell to drive the clamping jaws to be switched between the clamping position and the unlocking position;

the adapter is internally provided with a first overflowing channel, one end of the adapter is provided with a positioning part, the other end of the adapter is provided with an adapter part, the positioning part is connected with the shell or the chuck, the positioning part is provided with a stop surface, the shell or the chuck connected with the positioning part is provided with a limiting surface, and the limiting surface is matched with the stop surface in a stop way so as to limit the displacement of the adapter along the axis direction of the shell;

the sealing element is clamped and fixed between the end part of the pipeline and the positioning part and is provided with a first sealing end face in sealing fit with the end part of the pipeline and a second sealing end face in sealing fit with the positioning part, and a second overflowing channel which is communicated with the pipeline and the first overflowing channel is arranged in the sealing element.

The pipe joint in this application also has the following additional technical features:

the positioning part is provided with a supporting top end which supports against the sealing element, the supporting top end is provided with a radial limiting part which is used for limiting the sealing element to move along the radial direction of the adapter, and the sealing element is provided with a radial limiting end face matched with the radial limiting part.

The second sealing end face comprises a radial limiting end face, a first-stage sealing end face connected with one end of the radial limiting end face, and a second-stage sealing end face connected with the other end of the radial limiting end face.

The first sealing end face is provided with a first sealing convex rib, and the first sealing convex rib is in interference fit with the end part of the pipeline; and/or the second sealing end face is provided with a second sealing convex rib, and the second sealing convex rib is in interference fit with the positioning part.

The positioning portion is in threaded connection with the shell or the chuck, the adaptor is provided with a screwing groove and/or a screwing lug, the pipeline connector further comprises a screwing wrench, and the screwing wrench is provided with a first matching surface matched with the screwing groove and/or a second matching surface matched with the screwing lug.

The tightening wrench is further provided with a third matching surface matched with the screw.

The outer surface of the switching part is provided with a concave-convex part or a frosting surface.

One end of the chuck is provided with a driving meshing part, and the other end of the chuck extends to the outer side of the shell and is provided with a force application part; the jack catch has the exposed core and is located the end of ending of the outside of casing, the jack catch still has the follow meshing portion that extends between the exposed core with end of ending, follow meshing portion with initiative meshing portion meshing transmission.

The chuck is positioned above the clamping jaws, the shell is provided with a supporting end face for bearing the sealing element, the shell is also provided with an installation part, and the positioning part is connected with the installation part; alternatively, the first and second electrodes may be,

the chuck is located the below of jack catch, just the chuck is equipped with and is used for bearing the support terminal surface of sealing member, the chuck still is equipped with the installation department, location portion with the installation department links to each other.

The application also provides a tap auxiliary device, including tap water purifier, tap water heater or tap bubbler, still include like foretell a kind of pipe joint, tap water purifier, tap water heater or tap bubbler with switching portion detachably connects.

Due to the adoption of the technical scheme, the technical effects obtained by the application are as follows:

1. among the pipeline joint that this application provided, set up through the circumference interval with a plurality of jack catchs along the casing, when connecting pipeline and pipeline assembly, a plurality of jack catchs can center on the pipeline jointly, then through setting up and a plurality of jack catchs meshing driven chuck, make the rotary motion of chuck can turn into the linear motion of a plurality of jack catchs, then make a plurality of jack catchs can be close to the pipeline along with the rotation of chuck, all with the pipeline butt until all jack catchs, thereby press from both sides the pipeline tightly jointly, in order to connect pipeline and pipeline together fixedly, and the same way, a plurality of jack catchs also can be along with the rotation of chuck keep away from the pipeline, thereby realize the pipeline and connect the breaking away from with the pipeline. Compare in prior art and adopt the clamp to apply circumference pretightning force to plastic casing in order to realize the mode to the tight location of clamp of pipeline, the technical scheme of this application: (1) the operation mode that the chuck is rotated to drive the clamping jaws to move is very simple and quick, so that the assembly efficiency is improved; the clamping jaw is directly abutted against the pipeline, so that the clamping jaw is fixed with the pipeline more visually, the pre-tightening force applied by the clamping jaw to the pipeline is easier to control, the empirical requirement on operators is relatively lower, and the pipeline joint and the pipeline are firmly installed after being assembled and are not easy to fall off; (2) the centering performance is good, and compared with a silica gel sleeve which is easy to deform, the clamping jaw fixing mode can effectively avoid the problem that the pipeline joint is interfered by external force to be inclined so as to cause untight sealing; (3) the application range is wider, the water faucet is clamped through the matching of the plurality of clamping jaws, only a stress point needs to be provided for the clamping jaws, and compared with the requirements of the silica gel sleeve on the appearance, the length, the smoothness and the like of the water faucet in various aspects, the requirements on the appearance, the caliber, the length and the like of the water faucet are low, and the application range of the pipeline joint is expanded; (4) at the in-process that presss from both sides tight pipeline, the main atress component of this application is the jack catch, compares in the clamp directly with the power on plastic casing, and the stress that this application produced the casing of pipeline joint is less for the casing warp for the casing is little, thereby makes the pipeline joint holistic life longer and guaranteed the stability after the installation.

In addition, the optimization of the pipeline joint and pipeline fixing mode brings about the change of the sealing mode between the pipeline joint and the pipeline, the end face sealing between the sealing element and the pipeline water outlet port is adopted, in order to adapt to pipelines with various calibers, the area of the first sealing end face of the sealing element is larger, and compared with the sealing mode that the silica gel sleeve is sleeved on the outer wall of the water faucet to realize radial sealing, firstly, the contact area between the sealing element and the pipeline port is smaller, and under the same external force action, the stress at the contact part between the sealing element and the pipeline is larger, so that the sealing element is easier to seal with the pipeline, and the sealing effect is better; secondly, the displacement of the adaptor along the axis of the shell is limited by the matching of the limiting surface and the stopping surface, and the adaptor can be prevented from excessively extruding the sealing element, so that the phenomenon that the contact part of the sealing element and a pipeline is excessively large in pretightening force to further prolong the service life of the sealing element and improve the sealing stability is avoided, and meanwhile, in the assembling process, a user can feel a blocking feeling to give feedback to the user when the limiting surface and the stopping surface are in contact, so that the user is reminded of installing the sealing element in place, the user experience is improved, and the problem that the sealing element is not tight due to the excessively small pretightening force is avoided; compared with a radial seal, the end face sealing mode also relatively reduces the requirements on the elastic performance and the dimensional precision of the seal and the matching precision in the radial direction after assembly, and the sealing mode of applying axial force to the seal to realize the end face sealing is more stable and is not easy to fail.

2. As an optimal mode of this application, set up radial spacing portion through the top of supporting at location portion to set up the radial spacing terminal surface with radial spacing portion adaptation at the sealing member, can utilize the mutual interference between radial spacing portion and the radial spacing terminal surface to prevent that the sealing member from radially taking place the skew, thereby prevent that sealing member and adaptor from producing radial dislocation, in order to avoid producing radial direction's leakage problem. And the radial limiting part and the radial limiting end face are matched with each other, so that a sealing surface in the horizontal direction is formed between the sealing element and the adapter piece, and the sealing effect is improved.

Furthermore, the second sealing end face of the sealing element comprises a radial limiting end face, a first-stage sealing end face and a second-stage sealing end face, the sealing element is in contact with the adapter piece in the horizontal direction through the first-stage sealing end face and the second-stage sealing end face, the sealing element is in contact with the adapter piece in the vertical direction through the radial limiting end face, the contact area between the sealing element and the adapter piece is increased, the pressure of the sealing element under the same pretightening force condition is reduced, excessive deformation of the sealing element can be prevented, and the service life of the sealing element is prolonged. In addition, the contact area between the sealing element and the adapter is increased, the water flow path of the contact area between the sealing element and the adapter is correspondingly prolonged and is bent, so that even if a gap exists between the sealing element and the adapter, liquid entering the gap between the sealing element and the adapter is not easy to flow out, and a water seal is formed at the gap, so that leakage is avoided.

3. As an optimal mode of this application, through set up first sealed protruding muscle and the sealed protruding muscle of second at the sealing member for form multiple seal between sealing member and pipeline, the adaptor, thereby improved the sealed effect between sealing member and pipeline, the adaptor.

4. As an optimal mode of this application, the adaptor both can bare-handed installation, also can utilize to screw up the spanner and twist the recess and/or twist the cooperation of twisting the lug and install, to the less user of strength, can further screw up the adaptor through screwing up the spanner to guarantee that the adaptor can be screwed up and put in place, avoid the pretightning force not enough and influence sealed effect.

Further, through set up the third fitting surface with the screw adaptation on screwing up the spanner for screwing up the spanner not only can be used for screwing up the adaptor, still can be used for screwing up the screw, in order to realize the location of connecting to other parts of pipeline joint (have the connection position of screw, if to the installation of the screw of split type casing), realize a dual-purpose, promote user experience.

5. As a preferred mode of the present application, by providing the concave-convex portion or the frosted surface on the outer surface of the adapter portion, the friction force between the adapter portion and a user when the user installs the adapter can be increased, so that the user can apply an acting force to the adapter, and the installation of the adapter is facilitated.

6. As a preferred mode of this application, through set up initiative meshing portion at the chuck to set up driven meshing portion at the jack catch, make the rotary motion of chuck can transmit to driven meshing portion through initiative meshing portion, thereby drive the jack catch and carry out linear motion. And through extending the setting with driven meshing portion between exposed end and end for the jack catch has multiple straight line displacement volume, thereby makes a plurality of jack catches can adopt different straight line displacement volume according to the pipeline of different bores, has enlarged the bore of the pipeline that the pipeline joint can be suitable for. Therefore, from the perspective of a product processing end, components of different types do not need to be arranged according to the caliber of the pipeline, the number of production lines is reduced, and the production cost is reduced; from the angle of product user end for a pipeline connects can be suitable for multiple pipeline type, has promoted its application scope and market space.

7. As a preferred mode of the application, the supporting end face used for bearing the sealing element is arranged on the shell or the chuck, so that the sealing element can be prevented from falling off, the sealing element can be installed to a pipeline as an assembly together with the shell and the chuck, and the assembly efficiency is improved. And through arranging the chuck in the below of jack catch, be favorable to reducing the height dimension that the pipeline connects on the one hand, promote the miniaturization that the pipeline connects, on the other hand is for realizing sealing at the top of casing and sheltering from and provide the space condition, is convenient for seal the top of casing to help beautifying the outward appearance that the pipeline connects. And, the chuck both can set up with the jack catch top, also can set up in the jack catch below, can satisfy different users' operation custom to promote user experience.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a first schematic view of an assembly of a pipeline joint and a pipeline provided in an embodiment of the present application;

FIG. 2 is an exploded view of a pipe coupling according to an embodiment of the present application;

FIG. 3 is an isometric view of an adapter provided in an embodiment of the present application;

FIG. 4 is an isometric view of a seal provided by an embodiment of the present application;

FIG. 5 is a schematic view of a portion of a first sealing end face of a pipeline in accordance with an embodiment of the present application;

FIG. 6 is a schematic illustration of a tightening wrench and adapter provided in accordance with an embodiment of the present application;

FIG. 7 is an isometric view of a chuck as provided in an embodiment of the present application;

FIG. 8 is an isometric view of a pawl as provided in an embodiment of the present application;

FIG. 9 is a schematic diagram of a pipe joint according to an embodiment of the present application;

FIG. 10 is an exploded view of a second example of a pipe coupling provided in the present application;

FIG. 11 is a second schematic view of the assembly of the pipe joint and the pipe according to the embodiment of the present application;

fig. 12 is an exploded view three of a pipeline joint provided in an embodiment of the present application.

Reference numerals:

1, positioning a component; 11 a housing; 111 a pilot hole; 112 an upper shell; 113 a lower housing; 12 chucks; 121 limiting surfaces; 122 positive engagement; 123 a force application part; 13, clamping jaws; 131 support the arms; 132 a clamping end; a 133 bit stop end; 134 a driven engagement portion;

2, an adapter; 21 a first flow passage; 22 a positioning part; a 221 stop face; 222 a radial limiting part; 23 an adapter part; 231 a concave-convex part; 24. screwing the groove;

3, a sealing element; 31 a first sealing end face; 311 a first sealing bead; 32 a second sealing end face; 321 radial limit end surface; 322 primary sealing end face; 323 a secondary seal end face; 33 a second flow channel;

4, pipelines; 5, screwing the wrench; 51 a first mating surface; 52 a third mating surface.

Detailed Description

In order to more clearly explain the overall concept of the present application, the following detailed description is given by way of example in conjunction with the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the positional or orientational relationship shown in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present invention.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In addition, the pipeline joint can be used for butt joint between a faucet and a water treatment device such as a faucet water purifier, a faucet water heater or a faucet bubbler, can also be used for connection between two water conveying pipelines, and can be used for switching over two water conveying components which cannot be directly connected.

The line connection as shown in fig. 1 to 2 comprises a positioning assembly 1, an adapter 2 and a sealing member 3. Wherein, locating component 1 includes casing 11, chuck 12 and a plurality of jack catch 13 that is used for hugging closely pipeline 4, and a plurality of jack catch 13 are arranged along the circumference interval of casing 11, and casing 11 is provided with the guiding hole 111 with jack catch 13 adaptation, and jack catch 13 moves in the axis direction of guiding hole 111 in order to have the clamping position of mutually supporting in order to hug closely pipeline 4 and the unblock position of unclamping pipeline 4, and chuck 12 and jack catch 13 mesh transmission, and chuck 12 can rotate in order to drive jack catch 13 and switch between clamping position and unblock position relative to casing 11. With reference to fig. 1 and 3, a first flow passage 21 is provided in the adaptor 2, one end of the adaptor 2 is provided with a positioning portion 22, the other end of the adaptor 2 is provided with an adaptor portion 23, the positioning portion 22 is provided with a stop surface 221, the chuck 12 connected to the positioning portion 22 is provided with a limit surface 121, and the limit surface 121 is matched with the stop surface 221 in a stop manner to limit the displacement of the adaptor 2 along the axis direction of the housing 11. Referring to fig. 1 and 4, the sealing element 3 is clamped and fixed between the end of the pipeline 4 and the positioning portion 22, the sealing element 3 has a first sealing end surface 31 in sealing fit with the end of the pipeline 4 and a second sealing end surface 32 in sealing fit with the positioning portion 22, and a second flow passage 33 communicating the pipeline 4 and the first flow passage 21 is arranged in the sealing element 3.

Referring to fig. 1, when fitting the line connection and the line 4, the plurality of jaws 13 are first brought into an unlocked position, so that the line 4 can be inserted between the plurality of jaws 13 until the outlet end of the line 4 abuts the seal 3. Then, by rotating the chuck 12, the plurality of jaws 13 can be driven to move in a direction close to the pipeline 4 until the pipeline joint is assembled with the pipeline 4. At this time, the plurality of jaws 13 are in a clamping position, i.e., the plurality of jaws 13 all press against the outer wall of the pipeline 4 to clamp the pipeline 4 together, thereby fixing the pipeline joint and the pipeline 4 together. Then, the adaptor 2 is mounted on the chuck 12 until the stop surface 221 of the adaptor 2 abuts against the limiting surface 121 of the chuck 12, and it is determined that the adaptor 2 is mounted in place, at this time, the adaptor 2 is fixed to the positioning assembly 1 and then clamps the sealing member 3 with the pipeline 4, the sealing member 3 is in sealing fit with the end of the pipeline 4 through the first sealing end surface 31, the second sealing end surface 32 of the sealing member 3 is in sealing fit with the positioning portion 22 of the adaptor 2, and the pipeline 4, the second overflowing channel 33 and the first overflowing channel 21 are sequentially communicated. Finally, the device to be connected (tap water purifier, tap water heater, tap bubbler or another water conduit) can be connected to the adaptor 23 of the adaptor 2.

As can be understood by those skilled in the art, compared with the prior art that a hoop is used to apply circumferential pre-tightening force to a plastic housing to clamp and position a pipeline, the technical solution of the present application: (1) the operation mode of driving the clamping jaws 13 to move by rotating the chuck 12 is very simple and quick, so that the assembly efficiency is improved; the clamping jaw 13 is directly abutted against the pipeline 4, so that the clamping jaw 13 is fixed with the pipeline 4 more intuitively, the pretightening force applied to the pipeline 4 by the clamping jaw 13 is easier to control, the empirical requirement on operators is relatively low, and the pipeline joint and the pipeline 4 are firmly installed after being assembled and are not easy to fall off; (2) the centering performance is good, and compared with a silica gel sleeve which is easy to deform, the clamping jaw 13 can be fixed in a mode of effectively avoiding the problem that the pipeline joint is deflected due to external force interference, so that the sealing is not tight; (3) the application range is wider, the water faucet is clamped through the matching among the clamping jaws 13, only stress points need to be provided for the clamping jaws, and compared with the requirements of a silica gel sleeve on the appearance, the length, the smoothness and the like of the water faucet in various aspects, the requirements on the appearance, the caliber, the length and the like of the water faucet are low, and the application range of a pipeline joint is expanded; (4) at the in-process of pressing from both sides tight pipeline, the main atress component of this application is jack catch 13, compares in the clamp directly with the power on plastic casing, and this application is less to the stress that casing 11 of pipeline joint produced for casing 11 warp for it is little, thereby makes the holistic life of pipeline joint longer and guaranteed the stability after the installation.

In addition, the optimization of the fixing mode of the pipeline joint and the pipeline 4 brings the change of the sealing mode between the pipeline joint and the pipeline 4, the end face sealing between the sealing element 3 and the water outlet port of the pipeline 4 is adopted, and the pipeline with various calibers can be adapted only by setting the first sealing end face 31 of the sealing element 3 to be larger, compared with the sealing mode that the silica gel sleeve is sleeved on the outer wall of the water faucet to realize radial sealing, firstly, the contact area between the sealing element 3 and the port of the pipeline 4 is smaller, and under the action of the same external force, the stress at the contact part between the sealing element 3 and the pipeline 4 is larger, so that the sealing element 3 is easier to seal with the pipeline 4, and the sealing effect is better; secondly, the displacement of the adapter piece 2 along the axis of the shell 11 is limited by the matching of the limiting surface 121 and the stop surface 221, and the adapter piece 2 can be prevented from excessively extruding the sealing piece 3, so that the phenomenon that the sealing piece 3 is tilted by other parts due to overlarge pretightening force applied to the contact part of the sealing piece 3 and the pipeline 4 is avoided, the service life of the sealing piece 3 is prolonged, and the sealing stability is improved, meanwhile, in the assembling process, a user can feel a blocking feeling to give feedback to the user when the limiting surface 121 and the stop surface 221 are contacted, the user is reminded of installing in place, the user experience is improved, and the problem that the sealing is not tight due to the fact that the pretightening force applied to the sealing piece 3 is too small can be avoided; then, compared with the radial seal, the end face seal mode also relatively reduces the requirements on the elastic performance and the dimensional precision of the seal member 3 and the matching precision in the radial direction after assembly, and the seal mode of applying the axial force to the seal member 3 to realize the end face seal is more stable and is not easy to fail.

It should be noted that the number of the claws 13 in the drawings is only an illustration and is not a limitation to the pipe joint of the present application. The number of jaws 13 may be 2 or more than 3. In addition, the diameters of the first transfer channel 21 and the second transfer channel 33 may be the same or different.

In addition, the adaptor 2 may be connected to the housing 11, that is, the limiting surface may be formed on the housing 11.

As a preferred embodiment of the present application, as shown in fig. 2 and 4, the positioning portion 22 has a top end abutting against the sealing member 3, the top end is provided with a radial limiting portion 222 for limiting the movement of the sealing member 3 along the radial direction of the adaptor 2, and the sealing member 3 is provided with a radial limiting end face 321 adapted to the radial limiting portion 222. Referring to fig. 1, after the pipeline joint is assembled in place, the radial limiting portion 222 abuts against the radial limiting end surface 321 to limit the movement of the sealing element 3 in the radial direction of the adapter 2.

As can be understood by those skilled in the art, by providing the radial limiting portion 222 at the abutting end of the positioning portion 22 and providing the radial limiting end face 321 adapted to the radial limiting portion 222 on the sealing element 3, the sealing element 3 can be prevented from radially deviating by utilizing the mutual interference between the radial limiting portion 222 and the radial limiting end face 321, so as to prevent the sealing element 3 and the adaptor 2 from being radially dislocated, and avoid the leakage problem in the radial direction. In addition, the radial limiting part 222 and the radial limiting end face 321 are matched with each other, so that a sealing surface in the horizontal direction is formed between the sealing element and the adapter, and the sealing effect is improved.

As a preferred example in this embodiment, as shown in fig. 4, the second seal end surface 32 of the seal member 3 includes the above-described radial stopper end surface 321, a primary seal end surface 322 connected to one end of the radial stopper end surface 321, and a secondary seal end surface 323 connected to the other end of the radial stopper end surface 321.

Those skilled in the art can understand that the sealing element 3 can be in sealing contact with the adaptor 2 in the horizontal direction through the first-stage sealing end surface 322 and the second-stage sealing end surface 323, and also can be in sealing contact with the adaptor 2 in the vertical direction through the radial limiting end surface 321, so that the contact area between the sealing element 3 and the adaptor 2 is increased, the pressure borne by the sealing element 3 under the same pretightening force condition is reduced, excessive deformation of the sealing element 3 can be prevented, and the service life of the sealing element 3 is prolonged. In addition, the contact area between the sealing element 3 and the adapter 2 is increased, the water flow path of the contact area between the sealing element and the adapter is correspondingly prolonged and is bent, so that even if a gap exists between the sealing element and the adapter, liquid entering the gap between the sealing element and the adapter is not easy to flow out, and a water seal is formed at the gap, so that leakage is avoided.

As a preferred embodiment of the present application, as shown in fig. 5, the first sealing end face 31 is provided with a first sealing rib 311, and the first sealing rib 311 is in interference fit with the end of the pipeline 4; and/or the second sealing end face 32 is provided with a second sealing rib (not shown in the figure), and the second sealing rib is in interference fit with the positioning part of the adapter.

As can be understood by those skilled in the art, by providing the first sealing rib 311 and the second sealing rib on the sealing member 3, multiple seals are formed between the sealing member 3 and the pipeline 4 and the adaptor 2, so that the sealing effect between the sealing member 3 and the pipeline 4 and the adaptor 2 is improved.

As a preferred embodiment of the present application, as shown in fig. 1, 3 and 6, the positioning portion 22 is in threaded connection with the chuck 12, the adaptor 2 is provided with a screwing groove 24, and the pipeline connector further comprises a tightening wrench 5, wherein the tightening wrench 5 has a first mating surface 51 adapted to the screwing groove 24. Referring to fig. 6, the first fitting surface 51 of the tightening wrench 5 can be inserted into the screwing groove 24, and then the tightening wrench 5 is rotated, so that the adaptor 2 can be driven to rotate by the interference between the first fitting surface 51 and the inner wall of the screwing groove 24, and the adaptor 2 can be tightened.

The technical personnel in the field can understand that adapter 2 of this application both can bare-handed installation, also can utilize to screw up spanner 5 and install with the cooperation of twisting recess 24, to the less user of strength, can further screw up adapter 2 through screwing up spanner 5 to guarantee that adapter 2 can be screwed up and put in place, avoid the pretightning force not enough and influence sealed effect.

It should be noted that, under the condition of adopting threaded connection, the chuck 12 may be provided with an internal thread, and the adaptor 2 may be provided with an external thread; it is also possible that the chuck 12 is provided with an external thread and the adapter 2 with an internal thread, which is not limited in this application. In addition, the positioning portion 22 and the mounting portion may be fixedly connected by snap-fitting.

In addition, it should be noted that the adaptor 2 may also be provided with a screwing protrusion, and then a second mating surface adapted to the screwing protrusion is provided on the tightening wrench for performing the tightening operation. Moreover, the screwing groove and the screwing lug can be provided only one or both. In addition, the screwing grooves and the screwing projections can be built in the adapter 2 or can be externally arranged on the adapter 2.

As a preferred example in the present embodiment, as shown in fig. 6, the tightening wrench 5 is further provided with a third mating surface 52 that fits the screw.

As can be understood by those skilled in the art, by providing the third mating surface 52 on the tightening wrench 5, which is adapted to the screw, the tightening wrench 5 can be used not only for tightening the adaptor 2, but also for tightening the screw, so as to achieve connection positioning of other parts of the pipeline joint (where there is a connection portion of the screw, such as installation of the screw for the split housing described below), thereby achieving two purposes, and improving user experience.

It should be noted that the arrangement positions of the first mating face 51 and the third mating face 52 are not limited to the form of the drawings, and the first mating face 51 and the third mating face 52 may be respectively arranged at both opposite ends of the tightening wrench 5, or the second mating face 52 may be formed on a large plane of the tightening wrench 5. Similarly, the case where the second mating face is provided is also as described above.

As a preferred example in the present embodiment, as shown in fig. 3, an uneven portion 231 is provided on the outer surface of the adapter 23.

As will be understood by those skilled in the art, by providing the concave-convex portion 231 on the outer surface of the adaptor portion 23, the friction force between the adaptor portion 23 and the user when installing the adaptor 2 can be increased, so that the user can apply a force to the adaptor 2, and the installation of the adaptor 2 is facilitated.

The uneven portion may be replaced with any structure capable of increasing the frictional force, such as a frosted surface.

As a preferred embodiment of the present application, as shown in fig. 7 and 8, the chuck 12 is provided with a driving engaging portion 122 at one end and a force applying portion 123 at the other end, and after the chuck 12 is assembled with the housing 11, the force applying portion 123 extends to the outside of the housing 11 for the user to operate. Taking one pawl 13 as an example, the pawl 13 includes a support arm 131, the support arm 131 having a holding end 132 and a stop end 133 located outside the housing 11, the support arm 131 further having a driven engagement portion 134 extending between the holding end 132 and the stop end 133, the driven engagement portion 134 being in meshing transmission with the driving engagement portion 122.

As will be understood by those skilled in the art, by providing the driving engagement portion 122 at one end of the chuck 12 and the driven engagement portion 134 at the jaws 13, the rotational movement of the chuck 12 can be transmitted to the driven engagement portion 134 through the driving engagement portion 122, thereby moving the jaws 13 linearly. The driven engaging portion 134 extends between the clamping end 132 and the stopping end 133, so that the jaws 13 have various linear displacement amounts, the jaws 13 can adopt different linear displacement amounts according to pipelines with different calibers, and the calibers of the pipelines which can be suitable for the pipeline joint are enlarged. Therefore, from the perspective of a product processing end, components of different types do not need to be arranged according to the caliber of the pipeline, the number of production lines is reduced, and the production cost is reduced; from the angle of product user end for a pipeline connects can be suitable for multiple pipeline type, has promoted its application scope and market space.

As a preferred example of the present embodiment, as shown in fig. 7 and 8, the driving engagement portion 122 is a gear tooth disposed around the circumference of the chuck 12, the gear tooth is arranged in an archimedean spiral, and the driven engagement portion 134 is a rack gear distributed at intervals, and the rack gear can be inserted into a spiral track between the gear teeth, so that the jaws 13 can move linearly with the rotation of the chuck 12.

As can be understood by those skilled in the art, the active engaging part 122 is provided with the gear teeth arranged in an archimedes spiral line, so that the plurality of claws 13 can be driven by the gear teeth to approach the pipeline 4 or be driven by the gear teeth to be away from the pipeline 4 at the same speed, and the plurality of claws 13 can clamp or unlock the pipeline 4 quickly and simultaneously, thereby improving the cooperativity between the claws 13 and the assembling efficiency. And the wheel teeth that are the helix and arrange have higher structural strength, and the operation is more steady to make whole assembling process more smooth and easy.

It should be further noted that the positional relationship between the chuck 12 and the jaws 13 in the present application may be any one of the following embodiments:

example 1: as shown in fig. 9 and 10, the chuck 12 is located above the jaws 13, the housing 11 is provided with a supporting end surface for bearing the sealing member 3, the housing 11 is further provided with a mounting portion fixedly connected with the positioning portion 22 of the adaptor 2, and the positioning portion 22 of the adaptor 2 is connected with the mounting portion of the housing 11 in the manner as described above when the adaptor 2 is connected with the chuck 12.

It can be understood by those skilled in the art that by providing a support end surface for carrying the seal 3 in the housing 11 or the chuck 12, the seal 3 can be prevented from coming off and the seal 3 can be mounted to the pipeline 4 as one assembly with the housing 11 and the chuck 12, improving the assembly efficiency.

Example 2: as shown in fig. 1 and 11, the chuck 12 is located below the jaws 13, the chuck 12 is provided with a supporting end surface for bearing the sealing member 3, the chuck 12 is further provided with a mounting portion fixedly connected with the positioning portion 22, and the positioning portion 22 is connected with the mounting portion in the manner described above.

Those skilled in the art can understand that, by placing the chuck 12 under the clamping jaws 13, on one hand, the height of the pipeline joint is reduced, the miniaturization of the pipeline joint is promoted, on the other hand, a space condition is provided for realizing closed shielding at the top of the shell 11, the top of the shell 11 is convenient to seal, and as the chuck 12 is in an up-mounted structure for adapting to multiple sizes, the inner diameter of the chuck 12 is inevitably larger than the outer diameter of the pipeline 4, so that a very large assembly gap is generated, the appearance is influenced, and therefore the appearance of the pipeline joint is beautified by conveniently sealing the top of the shell 11 with the down-mounted chuck 12.

In addition, as can be understood by those skilled in the art, in the present embodiment, the chuck 12 drives the jaws 13 to move by rotating so as to clasp the pipeline, and meanwhile, the adaptor 2 is connected with the chuck 12 by screwing, so that the two rotation directions are configured to be the same direction, so that the mounting action of the adaptor 2 further drives the chuck 12 to fasten the jaws 13, thereby improving the stability of the assembly.

The chuck of the pipeline joint can adopt an upper-mounted type and a lower-mounted type, so that the use habits of different users can be met, and the user experience is improved.

As an example under the foregoing embodiments 1 to 2, as shown in fig. 1 and 2, the housing 11 is of an integral structure, and the guide hole 111 is provided in a side wall of the housing 11.

As a preferable example under the foregoing embodiments 1 to 2, as shown in fig. 9 to 12, the housing 11 includes an upper housing 112 and a lower housing 113, and the upper housing 112 and the lower housing 113 are detachably coupled and together enclose the guide hole 111 so as to be cooperatively engaged to hold the claw 13.

As can be understood by those skilled in the art, the housing is in a split assembly form, so that the installation of the jaw 13 is more convenient, and compared with the way that the jaw 13 is inserted into the integrated guide hole, the split guide hole allows the jaw 13 and the upper housing 112 to have a larger contact area, and because the jaw 13 bears the weight of the whole pipeline joint, the jaw 13 receives a larger reaction force to the pipeline 4, therefore, the large contact area between the upper housing 112 and the jaw 13 can effectively prevent the jaw 13 from inclining, and the stability of the jaw 13 and the pipeline 4 in matching is enhanced.

Further, compared to the case of the one-piece type which integrally receives the force transmitted from the claws 13, the split type allows the force transmitted from the claws 13 to be mainly borne by the upper case 112, so that the lower case 113 is allowed to be made thinner, which contributes to a reduction in the cost of the whole case.

In the present preferred embodiment, the main portion of the guide hole may be formed in the upper housing, the lower housing, or a portion of the guide hole may be formed in each of the upper housing and the lower housing, which is not limited in the present application.

In addition, it should be noted that the mounting mode of the upper shell and the lower shell can adopt the mode that the upper shell and the lower shell are respectively provided with the buckle and the clamping position, so that the upper shell and the lower shell are directly clamped together, the mode that the upper shell and the lower shell are respectively provided with the mounting holes for butt joint and then other fasteners are utilized to penetrate through the two connecting holes to realize fixation can be adopted.

As a preferred embodiment of the present application, there is also provided a faucet auxiliary device, including a faucet water purifier, a faucet water heater or a faucet bubbler, and further including the above-mentioned pipe joint, wherein the faucet water purifier, the faucet water heater or the faucet bubbler is detachably connected to the adapter portion.

The faucet water purifier, the faucet water heater or the faucet bubbler can be connected with the adapter part in a threaded connection mode or in a detachable connection mode such as a clamping connection mode, and the application is not limited to the above.

Where not mentioned in this application, can be accomplished using or referencing existing technology.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A pipe joint, comprising:

the positioning assembly comprises a shell, a chuck and a plurality of clamping jaws for tightly holding a pipeline, the plurality of clamping jaws are arranged at intervals along the circumferential direction of the shell, the shell is provided with a guide hole matched with the clamping jaws, the clamping jaws move along the axial direction of the guide hole to have a clamping position matched with each other to tightly hold the pipeline and an unlocking position for releasing the pipeline, the chuck is in meshing transmission with the clamping jaws, and the chuck can rotate relative to the shell to drive the clamping jaws to be switched between the clamping position and the unlocking position;

the adapter is internally provided with a first overflowing channel, one end of the adapter is provided with a positioning part, the other end of the adapter is provided with an adapter part, the positioning part is connected with the shell or the chuck, the positioning part is provided with a stop surface, the shell or the chuck connected with the positioning part is provided with a limiting surface, and the limiting surface is matched with the stop surface in a stop way so as to limit the displacement of the adapter along the axis direction of the shell;

the sealing element is clamped and fixed between the end part of the pipeline and the positioning part and is provided with a first sealing end face in sealing fit with the end part of the pipeline and a second sealing end face in sealing fit with the positioning part, and a second overflowing channel which is communicated with the pipeline and the first overflowing channel is arranged in the sealing element.

2. The pipe joint according to claim 1,

the positioning part is provided with a supporting top end which supports against the sealing element, the supporting top end is provided with a radial limiting part which is used for limiting the sealing element to move along the radial direction of the adapter, and the sealing element is provided with a radial limiting end face matched with the radial limiting part.

3. The pipe joint according to claim 2,

the second sealing end face comprises a radial limiting end face, a first-stage sealing end face connected with one end of the radial limiting end face, and a second-stage sealing end face connected with the other end of the radial limiting end face.

4. The pipe joint according to claim 1,

the first sealing end face is provided with a first sealing convex rib, and the first sealing convex rib is in interference fit with the end part of the pipeline; and/or the second sealing end face is provided with a second sealing convex rib, and the second sealing convex rib is in interference fit with the positioning part.

5. The pipe joint according to claim 1,

the positioning portion is in threaded connection with the shell or the chuck, the adaptor is provided with a screwing groove and/or a screwing lug, the pipeline connector further comprises a screwing wrench, and the screwing wrench is provided with a first matching surface matched with the screwing groove and/or a second matching surface matched with the screwing lug.

6. The pipe joint according to claim 5,

the tightening wrench is further provided with a third matching surface matched with the screw.

7. The pipe joint according to claim 5,

the outer surface of the switching part is provided with a concave-convex part or a frosting surface.

8. A pipe joint according to any one of claims 1 to 7,

one end of the chuck is provided with a driving meshing part, and the other end of the chuck extends to the outer side of the shell and is provided with a force application part; the jack catch has the exposed core and is located the end of ending of the outside of casing, the jack catch still has the follow meshing portion that extends between the exposed core with end of ending, follow meshing portion with initiative meshing portion meshing transmission.

9. The pipe joint according to claim 8,

the chuck is positioned above the clamping jaws, the shell is provided with a supporting end face for bearing the sealing element, the shell is also provided with an installation part, and the positioning part is connected with the installation part; alternatively, the first and second electrodes may be,

the chuck is located the below of jack catch, just the chuck is equipped with and is used for bearing the support terminal surface of sealing member, the chuck still is equipped with the installation department, location portion with the installation department links to each other.

10. A faucet ancillary device comprising a faucet water purifier, a faucet water heater, or a faucet bubbler, further comprising a pipe fitting as claimed in any one of claims 1 to 9, the faucet water purifier, faucet water heater, or faucet bubbler being removably connected to the adaptor portion.

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