CN215371509U - 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, and the circumference interval arrangement of casing is followed to a plurality of jack catchs, utilizes the driven mode of meshing to drive a plurality of jack catchs to switch between the clamping position of hugging closely the pipeline and the unblock position of unclamping the pipeline for casing pivoted chuck. The adapter piece is connected with the positioning assembly through the positioning portion and is clamped with the end portion of the pipeline together to form a sealing piece, the sealing piece is in sealing fit with the end portion of the pipeline and the positioning portion respectively, and the sealing piece is communicated with the pipeline and a first overflowing channel of the adapter piece through a second overflowing channel. 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 disclosed by the application 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 first overflowing channel is arranged in the adapter, one end of the adapter is provided with a positioning part, the other end of the adapter is provided with an adapter part, and the positioning part is connected with the positioning assembly;

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:

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 includes the support arm, the support arm has the exposed core and is located the end of ending in the outside of casing, the support arm still has the exposed core with end the driven meshing portion that extends between the end of ending, driven meshing portion with initiative meshing portion meshing transmission.

The casing is equipped with and is used for injecing the chuck is followed the spacing portion of axial that the axis direction of casing removed, and be used for injecing the chuck is followed the radial spacing portion that the radial direction of casing removed, the chuck have with the spacing portion backstop complex axial spacing terminal surface of axial, and with the radial spacing terminal surface of spacing portion backstop complex.

The initiative meshing portion is for winding the teeth of a cogwheel that the circumference of chuck set up, the teeth of a cogwheel is the helix and arranges.

And one side of the supporting arm, which is back to the driven meshing part, is provided with a reinforcing rib.

The clamping end extends along the axial direction of the pipeline so that the supporting arm is provided with a clamping part with a height dimension larger than the inner diameter of the guide hole, and the reinforcing rib is arranged on one side of the clamping part adjacent to the clamping end.

The clamping jaw further comprises an anti-slip pad, and the anti-slip pad is arranged on one side, facing the pipeline, of the clamping end face.

The chuck is located the top of jack catch, the casing is equipped with and is used for bearing the support terminal surface of sealing member, the casing still be equipped with the installation department that location portion linked firmly, location portion with installation department threaded connection, just the adaptor is equipped with to twist soon the recess and/or twist the lug soon.

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 be equipped with the installation department that location portion linked firmly, location portion with installation department threaded connection, just the adaptor is equipped with to twist soon the recess and/or twist the lug soon.

The application also provides a tap auxiliary device, including tap water purifier, tap water heater or tap bubbler, as above the pipeline connect, 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, the pre-tightening force applied by the clamping jaws to the pipeline is easier to control, so that the empirical requirement on operators is relatively low, 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, pipeline joint and pipeline fixed mode's optimization has brought the change of sealing means between pipeline joint and the pipeline, this application adopts the end face seal between sealing member and the pipeline water outlet port, compare in the mode that the tap outer wall was located to the silica gel cover, the sealing member of this application and the area of contact of pipeline port department are less, under same external force, the stress of sealing member and pipeline contact department is bigger, make the sealing member seal with the pipeline more easily, sealed effect is better, and also make the requirement to the elastic property of sealing member reduce relatively. And, the sealing mode that the axial force is exerted to the sealing member to realize the end face sealing is more stable and is not easy to lose efficacy.

2. As a preferred mode of this application, through set up initiative meshing portion in the one end of 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.

Further, through setting up initiative meshing portion to be the teeth of a cogwheel that Archimedes spiral arranged for a plurality of jack catchs can be close to the pipeline or keep away from the pipeline with the same speed, thereby realize a plurality of jack catchs and press from both sides tight or unblock to quick, the while of pipeline, improved the cooperativity between the jack catchs, and then improved assembly 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.

3. As an optimal mode of this application, through mutually supporting between messenger's chuck and the casing with restriction chuck along the radial removal of casing axial removal and chuck along the casing, can prevent that chuck and jack catch from taking place to break away from to can prevent that the meshing of chuck and jack catch from taking place the deviation and leading to the operation not smooth, thereby guarantee the effective meshing of chuck and jack catch, and guarantee operation process's smooth and easy nature.

4. As an preferred mode of this application, the one side of the driven meshing portion of support arm dorsad is provided with the strengthening rib, because whole pipeline connects the butt through jack catch and pipeline and realizes the fixed on the pipeline for the jack catch has born the weight that whole pipeline connects, consequently, can promote the structural strength of jack catch through setting up the strengthening rib, avoids the jack catch excessively to warp, thereby has improved the stability of pipeline joint and pipeline assembly.

Further, through the clamping part that forms height dimension and be greater than the guiding hole at the clamping part to with the strengthening rib setting in one side that the clamping part borders on with the clamping part, make the strengthening rib can strengthen the structural strength of clamping part, with the counter action act on the clamping part the reaction force that produces when the clamping part supports the pressure pipeline, thereby prevent that the clamping part from warping excessively to lead to holding power not enough to the pipeline. And the height dimension of the clamping part is larger than the inner diameter of the guide hole, and the radial outward movement limitation of the clamping jaws can be realized, so that the initial positions of the clamping jaws can be conveniently determined, the initial positions of the clamping jaws are consistent, and the clamping jaws can synchronously move under the driving of the chuck and synchronously clamp or release a pipeline.

5. As an preferred mode of this application, set up the slipmat through the clamping end at the jack catch to one side of pipeline for the jack catch can utilize the outer wall butt of slipmat and pipeline, thereby has increased the frictional force between jack catch and the pipeline, further prevents that the pipeline from connecting from the pipeline slippage, has promoted the stability after pipeline connects and the pipeline assembly.

6. As a preferred mode of this application, through placing the chuck in the top of jack catch to set up the support terminal surface that is used for bearing the weight of the sealing member at the casing, can prevent that the sealing member from deviating from, and make the sealing member can with casing and chuck as an assembly installation to pipeline department, improved assembly efficiency. And moreover, the screwing groove and/or the screwing lug are/is arranged on the adapter, so that a user can install the adapter through a screwing tool and can install the adapter by bare hands.

7. As an preferred mode of this application, through placing 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 provides the space condition for realizing closing at the top of casing and sheltering from, is convenient for seal the top of casing to help beautifying the outward appearance that the pipeline connects.

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 chuck as provided in an embodiment of the present application;

FIG. 5 is an isometric view of a jaw provided in an embodiment of the present application;

FIG. 6 is an isometric view of a pawl as provided in an embodiment of the present application;

FIG. 7 is an isometric view of a housing provided by an embodiment of the present application;

FIG. 8 is a first schematic structural diagram of a pipe joint according to an embodiment of the present disclosure;

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

FIG. 10 is a schematic view of a wrench mating with an adapter according to an embodiment of the present application;

FIG. 11 is an exploded view of a second example of a pipe coupling provided in the present application;

FIG. 12 is an exploded view of a third example of a pipe coupling provided in the present application;

fig. 13 is a second schematic view of the assembly of the pipe joint and the pipe according to the embodiment of the present application.

Reference numerals:

1, positioning a component; 11 a housing; 111 a pilot hole; 112 axial limiting part; 113 radial spacing part; 114 an upper housing; 115 a lower shell; 12 chucks; 121 a positive engagement portion; 122 force application part; 123 axial limiting end face; 124 radial limit end faces; 13, clamping jaws; 131 support the arms; 132 a clamping end; a 133 bit stop end; 134 a driven engagement portion; 135 reinforcing ribs; 136 a clamping portion; 137 a non-slip mat;

2, an adapter; 21 a first flow passage; 22 a positioning part; 23 an adapter part; 24 screwing the groove;

3, a sealing element; 31 a first sealing end face; 32 a second sealing end face; 33 a second flow channel;

4, pipelines; 5 a wrench.

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, a positioning portion 22 is provided at one end of the adaptor 2, an adaptor portion 23 is provided at the other end of the adaptor 2, and the adaptor 2 is connected to the positioning assembly 1 through the positioning portion 22. The sealing element 3 is clamped and fixed between the end part of the pipeline 4 and the positioning part 22, the sealing element 3 is provided with a first sealing end surface 31 in sealing fit with the end part of the pipeline 4 and a second sealing end surface 32 in sealing fit with the positioning part 22, and a second overflowing channel 33 communicating the pipeline 4 and the first overflowing channel 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 moment, a plurality of jack catchs 13 are in the clamping position, a plurality of jack catchs 13 all support the outer wall of pressing pipeline 4 promptly, with the tight pipeline 4 of common clamp, thereby connect the pipeline with pipeline 4 together fixed, simultaneously, adaptor 2 is fixed with locating component 1, then with 4 centre gripping sealing member 3 of pipeline, sealing member 3 is through the sealed cooperation of the tip of first seal face 31 with pipeline 4, the sealed cooperation of second seal face 32 and the location portion 22 of adaptor 2 of sealing member 3, make pipeline 4, the second overflow passageway 33 and the first passageway 21 of overflowing communicate in proper order.

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 that the chuck 12 is rotated to drive the clamping jaws 13 to move is very simple, the pre-tightening force applied to the pipeline 4 by the clamping jaws 12 is easier to control, so that the experience 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 a stress point needs to be provided for the clamping jaws 13, 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 that presss from both sides tight pipeline 4, 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, pipeline joint and pipeline 4 fixed mode's optimization has brought the change of the sealed mode between pipeline joint and the pipeline 4, this application adopts the end face seal between sealing member 3 and the pipeline 4 water outlet port, compare in the sealed mode that the tap outer wall was located in the silica gel cover in order to realize radial seal, the area of contact of sealing member 3 and the pipeline 4 port department of this application is less, under same external force, the stress of sealing member 3 and the pipeline 4 department of contact is bigger, make sealing member 3 seal with pipeline 4 more easily, sealed effect is better, and compare in radial seal, the requirement to the elastic property of sealing member 3, the requirement of the cooperation precision of size precision and the radial direction after the assembly also makes relatively reduce in the end face seal's mode. Moreover, the sealing mode of applying axial force to the sealing element 3 to realize end face sealing is more stable and is not easy to lose efficacy.

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.

As a preferred embodiment of the present application, as shown in fig. 1, 4 and 5, the chuck 12 is provided with a driving engaging portion 121 at one end and a force applying portion 122 at the other end, and after the chuck 12 is assembled with the housing 11, the force applying portion 122 extends to the outside of the housing 11 for operation by a user. Taking one pawl 13 as an example, the pawl 13 comprises a support arm 131, the support arm 131 has a holding end 132 and a stop end 133 located outside the housing 11, the support arm 131 further has a driven engagement portion 134 extending between the holding end 132 and the stop end 133, and the driven engagement portion 134 is in engagement transmission with the driving engagement portion 121.

As will be understood by those skilled in the art, by providing the driving engagement portion 121 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 121, 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.

It should be noted that, since the pipeline joint of the present application is fixed by the linearly moving jaw 13, and the sealing is realized by the contact between the sealing element 3 and the port of the pipeline 4, as long as the radial direction of the housing 11 is sufficiently large and the jaw 13 is sufficiently long (i.e. the linear displacement of the jaw 13 is sufficiently large), and the area of the first sealing end surface 31 of the sealing element 3 is sufficiently large, the pipeline joint of the present application can be applied to the pipeline 4 which does not exceed the radial dimension of the housing 11, thereby improving the applicability of the pipeline joint.

As a preferred example of the present embodiment, as shown in fig. 4 and 5, the driving engagement portion 121 is a gear tooth disposed around the circumference of the chuck 12, the gear tooth is arranged in a spiral line (archimedes spiral line), and the driven engagement portion 134 is a rack bar spaced apart from each other, and the rack bar 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 portion 121 is provided as 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 thus the plurality of claws 13 can clamp or unlock the pipeline 4 quickly and simultaneously, and the cooperativity between the claws 13 is improved, thereby improving 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.

As a preferred example in the present embodiment, as shown in fig. 7, the housing 11 is provided with an axial direction stopper portion 112 for restricting the movement of the chuck 12 in the axial direction of the housing 11, and a radial direction stopper portion 113 for restricting the movement of the chuck 12 in the radial direction of the housing 11. As shown in fig. 4, the chuck 12 has an axial stop end surface 123 in stop engagement with the axial stop portion 112, and a radial stop end surface 124 in stop engagement with the radial stop portion 113 and the stop. Referring to fig. 1, when the chuck 12 and the housing 11 are assembled in place, the axial stopper end surface 123 and the axial stopper portion 112 are in surface contact in the axial direction of the housing 11, and the radial stopper end surface 124 and the radial stopper portion 113 are in surface contact in the radial direction of the housing 11.

As will be understood by those skilled in the art, by cooperating the chuck 12 and the housing 11 to limit the axial movement of the chuck 12 along the housing 11 and the radial movement of the chuck 12 along the housing 11, the chuck 12 and the jaws 13 can be prevented from being separated, and the engagement between the chuck 12 and the jaws 13 can be prevented from being deviated to cause unsmooth operation, thereby ensuring effective engagement between the chuck 12 and the jaws 13 and ensuring smooth operation.

As a preferred example in the present embodiment, as shown in fig. 5, a rib 135 is provided on the side of the support arm 131 facing away from the driven engagement portion 134.

As can be understood by those skilled in the art, since the whole pipe joint is fixed on the pipe 4 by the abutment of the jaw 13 with the pipe 4, so that the jaw 13 bears the weight of the whole pipe joint, the structural strength of the jaw 13 can be enhanced by providing the reinforcing rib 135 at the side of the supporting arm 131 facing away from the driven engaging portion 134, and the jaw 13 is prevented from being excessively deformed, thereby improving the stability of the assembly of the pipe joint and the pipe 4.

Further, as a preferable example under the present embodiment, as shown in fig. 5, the holding end 132 is extended in the axial direction of the pipeline 4 so that the support arm 131 has a holding portion 136 having a height dimension larger than the inner diameter of the guide hole 111, and a reinforcing rib 135 is provided at a side of the holding portion 136 adjacent to the holding end 132.

As can be understood by those skilled in the art, by forming the clamping portion 136 having a height dimension larger than that of the guide hole 111 at the clamping end 132 and disposing the reinforcing rib 135 at a side of the clamping portion 136 adjacent to the clamping end 132, the reinforcing rib 135 can enhance the structural strength of the clamping portion 136 to resist a reaction force acting on the clamping portion 136 generated when the clamping end 132 presses against the pipeline 4, thereby preventing the clamping portion 136 from being deformed excessively to cause insufficient holding force to the pipeline 4. And, the height dimension of the clamping portion 136 is larger than the inner diameter of the guide hole 111, which can limit the radial outward movement of the jaws 13, thereby facilitating the determination of the initial positions of the jaws 13, and making the initial positions of the jaws 13 consistent, so as to synchronously move and synchronously clamp or release the pipeline 4 under the driving of the chuck 12.

As a preferred example in this embodiment, as shown in fig. 6, the claw 13 further includes a non-slip pad 137, and the non-slip pad 137 is disposed on a side of the clamping end 132 facing the pipeline 4.

It can be understood by those skilled in the art that by providing the anti-slip pad 137 on the side of the clamping end 132 of the jaw 13 facing the pipeline 4, the jaw 13 can be abutted with the outer wall of the pipeline 4 by the anti-slip pad 137, so that the friction force between the jaw 13 and the pipe 4 is increased, the pipeline joint is further prevented from slipping off the pipeline 4, and the stability of the pipeline joint and the pipeline 4 after assembly is improved.

It should be noted that the non-slip pad 137 in this embodiment may be integrally formed with the claw 13, or may be a separate component and detachably connected to the main body of the claw 13.

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. 8, 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 a positioning portion 22 of the adaptor 2, the positioning portion 22 (shown in fig. 3) of the adaptor 2 is in threaded connection with the mounting portion, and the adaptor 2 is provided with a screwing groove 24 (shown in fig. 3).

It will be appreciated by those skilled in the art that by placing the chuck 12 above the jaws 13 and providing the housing 11 with a supporting end surface for carrying the seal 3, the seal 3 can be prevented from coming off and the seal 3 can be mounted to the pipeline 4 as a unit with the housing 11 and the chuck 12, improving assembly efficiency. Furthermore, by providing the screw recess on the adaptor 2, the user can install the adaptor 2 by using a screw tool (as shown in fig. 10, the wrench 5 is engaged in the screw recess 24 for rotation), or can install the adaptor 2 by hand.

It should be noted that, under the condition that the positioning portion 22 and the mounting portion are connected by a thread, the housing 11 may be provided with an internal thread, and the adaptor 2 may be provided with an external thread; the housing 11 may be provided with an external thread, and the adaptor 2 may be provided with an internal thread, which is not limited in the present application. In addition, the positioning portion 22 and the mounting portion may be fixedly connected by snap-fitting.

It should be noted that the adapter 2 may also be provided with a screw lug, and the adapter 2 may then be rotated by means of a screw tool having a recess. Moreover, the screwing groove and the screwing lug can be arranged in the adapter 2 or can be arranged outside the adapter 2.

Example 2: as shown in fig. 9, 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, the positioning portion 22 is in threaded connection with the mounting portion, and the adaptor 2 is provided with a screwing groove.

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.

It should be noted that, in this embodiment, the connection manner between the positioning portion 22 and the mounting portion and the structural configuration of the adaptor 2 are as described in embodiment 1, and are not described herein again.

The chuck 12 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. 11 to 13, the housing 11 includes an upper housing 114 and a lower housing 115, and the upper housing 114 and the lower housing 115 are detachably coupled and together enclose a guide hole 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 to have a larger contact area with the upper housing 114, and as the jaw 13 bears the gravity 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 114 and the jaw 13 can effectively prevent the jaw 13 from inclining, and the stability of the jaw 13 matching with the pipeline 4 is enhanced.

Further, compared to the case of the one-piece case integrally receiving the force transmitted from the claws 13, the split case allows the force transmitted from the claws 13 to be mainly borne by the upper case 114, thereby allowing the lower case 115 to be made thinner, which is advantageous in reducing the cost of the case as a whole.

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.

As a preferred embodiment under the present preferred example, referring to fig. 11, one end of the claw 13 located outside the housing 11 has a size larger than that of the guide hole, thereby limiting the movement of the claw 13 toward the inside of the housing 11.

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 first overflowing channel is arranged in the adapter, one end of the adapter is provided with a positioning part, the other end of the adapter is provided with an adapter part, and the positioning part is connected with the positioning assembly;

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,

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 includes the support arm, the support arm has the exposed core and is located the end of ending in the outside of casing, the support arm still has the exposed core with end the driven meshing portion that extends between the end of ending, driven meshing portion with initiative meshing portion meshing transmission.

3. The pipe joint according to claim 2,

the casing is equipped with and is used for injecing the chuck is followed the spacing portion of axial that the axis direction of casing removed, and be used for injecing the chuck is followed the radial spacing portion that the radial direction of casing removed, the chuck have with the spacing portion backstop complex axial spacing terminal surface of axial, and with the radial spacing terminal surface of spacing portion backstop complex.

4. A pipe joint according to claim 3,

the initiative meshing portion is for winding the teeth of a cogwheel that the circumference of chuck set up, the teeth of a cogwheel is the helix and arranges.

5. The pipe joint according to claim 2,

and one side of the supporting arm, which is back to the driven meshing part, is provided with a reinforcing rib.

6. The pipe joint according to claim 5,

the clamping end extends along the axial direction of the pipeline so that the supporting arm is provided with a clamping part with a height dimension larger than the inner diameter of the guide hole, and the reinforcing rib is arranged on one side of the clamping part adjacent to the clamping end.

7. The pipe joint according to claim 2,

the clamping jaw further comprises an anti-slip pad, and the anti-slip pad is arranged on one side, facing the pipeline, of the clamping end face.

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

the chuck is located the top of jack catch, the casing is equipped with and is used for bearing the support terminal surface of sealing member, the casing still be equipped with the installation department that location portion linked firmly, location portion with installation department threaded connection, just the adaptor is equipped with to twist soon the recess and/or twist the lug soon.

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

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 be equipped with the installation department that location portion linked firmly, location portion with installation department threaded connection, just the adaptor is equipped with to twist soon the recess and/or twist the lug soon.

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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