Wall-in type curved foot connector

Abstract

The utility model discloses a wall-in type curved foot connector which comprises a wall-in pipe fitting and a curved foot body, wherein the wall-in pipe fitting is used for being in threaded connection with a water pipe in a wall body, and the curved foot body is located outside the wall body and is in axial insertion connection with the wall-in pipe fitting. The device is characterized by further comprising a co-rotating structure and a limiting structure, the co-rotating structure comprises a driven part arranged on the outer wall surface of the in-wall pipe fitting and a driving part arranged on the curved foot body; when the in-wall pipe fitting is screwed and locked with a water pipe in a wall body, the curved foot body is driven to rotate on the in-wall pipe fitting, and the driving part is driven to correspondingly abut against the driven part to form connection fit, so that the in-wall pipe fitting is linked to synchronously rotate; the limiting structure is used for restraining the displacement of the curved foot body in the axial direction relative to the in-wall pipe fitting; by the adoption of the technical scheme, the bent foot connector is simple in structure, easy and convenient to install, easy to achieve and low in cost, and the problems that an existing bent foot connector is tedious and inconvenient to install are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of curved foot connectors, in particular to a wall-mounted curved foot connector. Background Art

[0002] The curved leg connector is a pipe connection fitting primarily used to connect the inlet pipe in the wall to the shower body. Traditional curved leg connectors are typically one-piece products, such as (Publication No.: CN 209577074U). This curved leg connector product is manufactured as a single piece, meaning the wall-entry pipe and the curved leg body are integrally formed. During installation, the curved leg connector is screwed onto the wall-entry pipe by tightening the hexagonal hole on the curved leg body with an Allen wrench. While this structural design allows for quick assembly, the overall length and rotation angle of the curved leg connector are difficult to adjust after installation, making it impossible to adapt to shower bodies of different sizes.

[0003] To address the difficulty in assembling the aforementioned integrated curved-leg joint, such as (Publication No.: CN113217729A), this improved structure divides the traditional integrated joint into a wall-mounted pipe fitting and a curved-leg body. The curved-leg body is inserted into the wall-mounted pipe fitting and can be axially extended and circumferentially rotated. During actual use, the length, spacing, and height of the two joints can be appropriately adjusted. After adjustment, the wall-mounted pipe fitting and the curved-leg body can be slowly fixed by turning the screws with a wrench to adapt to shower bodies of different sizes.

[0004] Although the above-mentioned improved structure can effectively ensure that the curved foot joint is compatible with the shower body for installation, the following problems still exist during the installation process: First, during installation, it is necessary to first use an adjustable wrench to screw the wall fitting and the indoor water pipe into the threaded connection, and then the curved foot itself can be inserted into the wall fitting to complete the installation, and the installation process is cumbersome; second, in order to make the curved foot joint product suitable for deeply buried municipal water pipes during installation, the wall fittings usually have to reserve an inner hexagonal hole for adapting to the inner hexagonal wrench, and the processing cost increases; third, when the municipal water pipe in the wall is buried deeper and the wall fitting does not have an inner hexagonal hole and can only be screwed with an adjustable wrench, the reserved space will limit the use of the adjustable wrench, and the product installation is inconvenient.

[0005] In summary, the existing curved leg joint structure still needs to be further improved to meet actual usage requirements. Utility Model Content

[0006] The utility model provides a wall-mounted curved leg joint with a simple structure, simple installation, easy implementation and low cost, which solves the problem of cumbersome and inconvenient installation of existing curved leg joints. The utility model mainly adopts the following technical solutions:

[0007] A wall-mounted curved foot joint, comprising a wall-mounted pipe fitting for threaded connection with a water pipe inside a wall, and a curved foot body located outside the wall and axially plugged into the wall-mounted pipe fitting; characterized in that it also comprises: a co-rotating structure and a limiting structure; the co-rotating structure comprises a passive portion provided on the outer wall surface of the wall-mounted pipe fitting, and an active portion provided on the curved foot body; when the wall-mounted pipe fitting is threaded and locked with the water pipe inside the wall, the curved foot body is driven to rotate on the wall-mounted pipe fitting, driving the active portion to correspondingly abut against the passive portion to form a joint fit, thereby linking the wall-mounted pipe fitting to rotate synchronously; the limiting structure is used to constrain the displacement of the curved foot body in the axial direction relative to the wall-mounted pipe fitting.

[0008] Preferably, the passive portion on the wall-entering pipe is located at one end close to the curved foot body.

[0009] Preferably, the passive part is a first abutment block provided on the outer wall surface of the wall-entering pipe fitting, and the active part is a second abutment block on the curved foot body. The curved foot body rotates on the wall-entering pipe fitting, driving the second abutment block to abut against the first abutment block for engagement and cooperation.

[0010] Preferably, the passive part is a matching groove provided on the outer wall surface of the wall-entering pipe fitting, and the active part is a guide block on the curved foot body. When the curved foot body rotates on the wall-entering pipe fitting, the guide block moves in the matching groove and is pressed against the wall surface of the matching groove to form a joint fit.

[0011] Preferably, the passive part is a clamping block provided on the outer wall of the wall-entering pipe fitting, and the active part is configured as a contact surface on the outer wall of the curved foot. When the curved foot body rotates on the wall-entering pipe fitting, the contact surface on the curved foot body moves with the clamping block to form a connection with it.

[0012] Preferably, the limiting structure includes an elastic clamping pin, a plurality of matching parts formed on the outer peripheral wall of the curved foot and a guide perforation formed on the side wall of the wall-entering pipe fitting; the elastic clamping pin is installed at a peripheral position of the wall-entering pipe fitting; under the action of elastic force, the elastic clamping pin can guide the free end of its clamping part through the guide perforation and form a limiting fit with the matching part on the curved foot body; the clamping part on the outer periphery of the curved foot is moved to link the free end to disengage the matching part, so that the curved foot body can be displaced axially along the wall-entering pipe fitting.

[0013] Preferably, when the curved leg body is inserted into the wall-mounted pipe fitting, the guide through-hole corresponds to any of the matching portions.

[0014] Preferably, the matching portion is an annular groove, and a plurality of the annular grooves are axially equidistantly arranged on the outer peripheral wall of the wall-entering pipe fitting.

[0015] Preferably, the curved hook forms a clearance cavity relative to the outer peripheral wall of the curved foot body, and the locking portion can be moved through the clearance cavity.

[0016] Preferably, the limiting structure includes a stop snap ring. When the curved foot body is axially inserted into the wall-entering pipe fitting, the portion of the curved foot body that passes through the wall-entering pipe fitting is sleeved with the stop snap ring to constrain the axial displacement of the curved foot body relative to the wall-entering pipe fitting through the stop snap ring.

[0017] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) The present invention provides a wall-mounted curved foot joint, which has a simple structure, is easy to install, easy to implement and has low cost, and solves the problem of the existing curved foot joint being cumbersome and inconvenient to install. The technical solution of the present invention is that when installing the curved foot joint, the curved foot body is driven to rotate on the wall-mounted pipe fitting, driving the active part to correspondingly abut against the passive part, so that the two are in contact with each other to form a joint fit, and then the curved foot body is continued to be screwed to link the wall-mounted pipe fitting to rotate synchronously, completing the screw connection and locking of the wall-mounted pipe fitting and the municipal water pipe into the room, and the installation is fast and convenient. In the present invention, even if the municipal water pipe in the wall is buried deeper, there is no need to rely on an external wrench during the entire installation process. The installation can be completed by the synchronous rotation function of the curved foot body linked to the wall-mounted pipe fitting, which has higher installation efficiency and no need to reserve an inner hexagonal hole for the wall-mounted pipe fitting, reducing the processing cost.

[0019] (2) In this technical solution, the passive part of the wall-entering pipe is located at one end close to the curved foot body. The design position of the passive part is more reasonable, and the passive part can quickly contact and cooperate with the active part, thereby improving installation efficiency.

[0020] (3) In this technical solution, elastic pins are used instead of traditional screws to constrain the axial installation length of the curved foot body and the wall-mounted pipe fitting. Furthermore, it no longer relies on the use of a wrench. It has low requirements for the size of the reserved space, is easier to install, and is more efficient. During the installation process, a simple toggle action is required to quickly release the axial limit of the curved foot body and the wall-mounted pipe fitting, which facilitates the subsequent adjustment of the length, spacing, and height of the curved foot joint, and further improves the installation efficiency.

[0021] (4) In the present technical solution, the mating portion is in the form of an annular groove structure. This structure can ensure that the total axial installation length of the curved foot body and the wall-mounted pipe fitting is limited. At the same time, the curved foot body and the wall-mounted pipe fitting also have a circumferential rotation function, so that the curved foot body and the wall-mounted pipe fitting can be adapted to more shower heads of different models and sizes, with stronger product strength and a wider range of applications.

[0022] (5) In this technical solution, the locking portion of the elastic locking pin is configured as a curved hook. This structural style can save more space, that is, the size requirement for the reserved space between the curved foot joint and the wall is lower.

[0023] (6) In this technical solution, the curved hook has a clearance cavity structure. The design of this structure makes it convenient for the user to use a wrench or hand to enter the clearance cavity to lift the elastic clamping pin. The structure is simple, easy to assemble, and saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the assembly of the curved foot body and the wall-entered pipe fitting in the first embodiment of the present utility model;

[0026] Figure 2 This is an exploded schematic diagram of the curved foot body and the wall-entering pipe fitting in the first embodiment of the present utility model;

[0027] Figure 3 This is a schematic diagram of the installation of the limiting structure in the first embodiment of the present utility model;

[0028] Figure 4 This is an exploded cross-sectional view of the first embodiment of the utility model Figure 1 ;

[0029] Figure 5 This is an exploded cross-sectional view of the first embodiment of the utility model Figure 2 ;

[0030] Figure 6 This is a schematic structural diagram of the elastic card pin of the first embodiment of the present utility model;

[0031] Figure 7 This is a structural diagram of the curved leg joint before the limiting structure is installed in the second embodiment of the present utility model;

[0032] Figure 8 This is a structural diagram of the curved leg joint after the limiting structure is installed in the second embodiment of the present utility model;

[0033] Figure 9 This is a schematic diagram of the assembly of the curved foot body and the wall-entered pipe fitting according to the third embodiment of the present invention;

[0034] Figure 10 This is an exploded schematic diagram of the curved foot body and the wall-entering pipe fitting according to the third embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram of the assembly of the curved foot body and the wall-entered pipe fitting according to the fourth embodiment of the present invention;

[0036] Figure 12 This is an exploded schematic diagram of the curved foot body and the wall-entering pipe fitting according to the fourth embodiment of the present invention;

[0037] The description of the accompanying drawings is as follows: 1. Wall-mounted pipe fitting; 11. Limiting groove; 2. Curved foot body; 31. Passive part; 32. Active part; 41. Elastic clamping pin; 411. Clamping part; 42. Fitting part; 43. Guide hole; 44. Stop ring; A. Clearance cavity. DETAILED DESCRIPTION

[0038] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0039] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0040] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present utility model.

[0041] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0042] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0043] First embodiment

[0044] See Figures 1 to 6 .

[0045] This embodiment provides a wall-mounted curved leg joint with a simple structure, simple installation, easy implementation and low cost, which solves the problem of cumbersome and inconvenient installation of existing curved leg joints. The curved leg joint designed by this utility model is a split design compared to the traditional one-piece curved leg joint. It mainly includes: a wall-mounted pipe fitting 1 for threaded connection with the water pipe inside the wall, and a curved leg body 2 located outside the wall and axially plugged into the wall-mounted pipe fitting 1. When threading the wall-mounted pipe fitting 1 with the municipal water pipe, only the curved leg body 2 needs to be screwed to synchronously drive the wall-mounted pipe fitting 1 to rotate, completing the installation with the municipal water pipe. The wall-mounted curved leg joint in this embodiment includes: a co-rotating structure and a limiting structure, wherein,

[0046] The main function of the co-rotating structure is to ensure that the wall-entering pipe fitting 1 does not need to be actively screwed when it is installed with the municipal water pipe, but is passively driven by the screwing of the curved foot body 2 (which directly replaces the traditional wrench to be used) to synchronously rotate the wall-entering pipe fitting 1 and screw it with the municipal water pipe. The co-rotating structure includes: a passive part 31 provided on the outer wall surface of the wall-entering pipe fitting 1, and an active part 32 provided on the curved foot body 2; wherein, the outer wall surface of the wall-entering pipe fitting 1 includes the outer peripheral pipe wall and two free end wall surfaces, the passive part 31 is provided on the outer peripheral pipe wall of the wall-entering pipe fitting 1 (close to one end of the curved foot body 2, but not on the automatic end wall surface of the wall-entering pipe fitting 1) or on the free end wall surface close to one end of the curved foot body 2; the active part 32 is mainly provided on the outside of the curved foot body 2, and its setting position is as follows: Figure 1 and Figure 2 As shown, it is only necessary to ensure that the active portion 32 can correspond to the passive portion 31 when the leg body 2 rotates;

[0047] In this embodiment, when the wall-entry pipe fitting 1 is screwed and locked with the water pipe inside the wall, the curved foot body 2 is driven (twisted) to rotate on the wall-entry pipe fitting 1, driving the active part 32 to abut against the passive part 31 to form a contact fit, thereby linking the wall-entry pipe fitting 1 to rotate synchronously;

[0048] In this embodiment, the principle of the active part 32 and the passive part 31 being connected and coordinated to rotate simultaneously is mainly as follows: the curved foot body 2 is subjected to the screwing force to perform active circumferential rotation, and the active part 32 thereon abuts against the passive part 31 and contacts each other. As the curved foot body 2 continues to rotate, the active part 32 drives the passive part 31 to rotate, and at this time the wall-entered pipe fitting 1 will rotate synchronously; therefore, in this embodiment, the active part 32 mainly bears the external force to actively rotate, while the passive part 31 bears the passive external force from the active part 32 to rotate, and the two cooperate with each other to rotate synchronously.

[0049] The limiting structure is mainly used to constrain the displacement of the curved foot body 2 relative to the wall-entered pipe fitting 1 in the axial direction to ensure that the shower body will not move forward and backward facing the wall after the shower body and the two curved foot joints are installed.

[0050] In this embodiment, see Figure 1 and Figure 2 The passive part 31 is a first abutment block provided on the outer wall surface of the wall-entering pipe fitting 1, and the active part 32 is a second abutment block on the curved foot body 2. The curved foot body 2 rotates on the wall-entering pipe fitting 1, driving the second abutment block to abut against the first abutment block for engagement and cooperation; the first abutment block and the second abutment block are both square blocks. In other embodiments, circular or arc-shaped blocks may also be used.

[0051] In the prior art, in order to ensure that the shower body and the two curved foot connectors will not be displaced after being installed, the method adopted is that after the curved foot body 2 is inserted into the wall-entry pipe fitting 1 and the installation length of the two is adjusted, the screw is slowly guided through and locked to the matching portion 42 on the wall-entry pipe fitting 1 and the curved foot body 2, thereby restricting the axial displacement of the curved foot body 2 relative to the wall-entry pipe fitting 1. Although such a limiting structure can effectively prevent the axial displacement of the wall-entry pipe fitting 1 and the curved foot body 2, such a limiting structure has certain requirements for the space reserved for the wrench to move, and the installation speed is relatively slow, time-consuming and labor-intensive. In particular, if the screw falls off or the thread is stripped during installation, it may directly lead to failure to install, which poses certain risks.

[0052] Therefore, see Figures 3 to 5 In this embodiment, a space-saving and quickly adjustable length limiting structure is provided. The limiting structure includes an elastic card pin 41, a plurality of matching portions 42, and a guide through hole 43.

[0053] A guide hole 43 is formed on the side wall of the wall-entry pipe 1, extending along the radial direction of the wall-entry pipe 1 and passing through the side wall; the guide hole 43 is mainly used to provide a guide for the elastic card pin 41 to penetrate or exit;

[0054] A plurality of mating portions 42 are formed on the outer peripheral wall of the curved foot body 2. When the curved foot body 2 is inserted into the wall-mounted pipe fitting 1, the guide holes 43 correspond to any of the mating portions 42. Thus, as long as the elastic clamping pin 41 is inserted into the guide holes 43 and guided through, the elastic clamping pin 41 will be guided to mate with the mating portion 42.

[0055] Elastic card pin 41, see Figure 6 , which is mainly a card pin arranged in an arc shape or an annular shape, which has a certain elasticity, and the elastic card pin 41 has a locking portion 411; see Figure 5 The elastic clamping pin 41 can be installed at a limited position on the outer periphery of the wall-entered pipe fitting 1. Under the action of its own elastic force, the elastic clamping pin 41 can guide the free end of the clamping portion 411 on it through the guide through-hole 43 and form a limited fit with the matching portion 42, so that the curved foot body 2 cannot be axially displaced relative to the wall-entered pipe fitting 1; by moving the clamping portion 411 on the outer periphery of the curved foot body 2, the free end can be linked to disengage the matching portion 42, so that the curved foot body 2 can be axially displaced along the wall-entered pipe fitting 1.

[0056] In this embodiment, when the elastic locking pin 41 is installed at a limited position on the outer periphery of the wall-entered pipe fitting 1, the locking portion 411 thereon is located at a position on the outer periphery of the wall-entered pipe fitting 1, and the free end of the locking portion 411 is located at an internal position of the wall-entered pipe fitting 1, that is, the free end passes through the guide hole 43 inside the wall-entered pipe fitting 1.

[0057] In this embodiment, the plurality of mating portions 42 are respectively annular grooves, and the plurality of annular grooves are axially equidistantly arranged on the outer peripheral wall of the curved foot body 2; when the curved foot body 2 is inserted into the wall-entered pipe fitting 1 and is axially displaced and adjusted relative to the wall-entered pipe fitting 1, any annular groove can correspond to the guide through-hole 43 on the wall-entered pipe fitting 1; when the elastic clamping pin 41 is guided through the guide through-hole 43, it can enter the annular groove and form a stop fit therewith, that is, as long as the curved foot body 2 moves axially relative to the wall-entered pipe fitting 1, the annular groove is stopped by the free end of the elastic clamping pin 41 and cannot move, and the curved foot body 2 can only rotate relative to the wall-entered pipe fitting 1, so that the annular groove rotates along an annular trajectory relative to the free end of the elastic clamping pin 41.

[0058] In this embodiment, see Figure 5 and Figure 6The retaining portion 411 of the elastic locking pin 41 is configured as a curved hook, the free end of which is inserted into the guide hole 43. The curved hook has a clearance cavity A, which allows the user to use a wrench or hand to reach into the clearance cavity A and tilt and shift the elastic locking pin 41. This allows the free end of the curved hook to disengage the annular groove, allowing the curved foot body 2 to move axially along the wall-entry pipe 1. In this embodiment, the curved hook includes various structural styles, such as "V" and arc. Regardless of the structural style, it only needs to have a recessed clearance cavity A facing the guide hole 43.

[0059] In this embodiment, in order to be able to be installed at a limited position on the outer periphery of the wall-entered pipe fitting 1, the elastic clamping pin 41 is arranged in an arc shape or a circular ring shape, and at least surrounds half of the outer circumference length of the wall-entered pipe fitting 1. Then, through its own elastic contraction force, it can form a clamping fit with the wall-entered pipe fitting 1 to be installed at a limited position on the outer periphery of the wall-entered pipe fitting 1.

[0060] Therefore, when the length needs to be adjusted, it is only necessary to simply turn the elastic card pin 41. The elastic card pin 41 will be quickly disengaged from the matching part 42 when subjected to a certain external force, and the axial installation length of the subsequent wall-entered pipe fitting 1 and the curved foot body 2 can be adjusted according to needs; the use of the elastic card pin 41 to replace the existing screw-tightening method is adopted, and it no longer relies on the use of a wrench. It has lower requirements for the size of the reserved space, and the installation is easier and more efficient. During the installation process, only a simple toggling action is required to quickly release the axial limit of the wall-entered pipe fitting 1 and the curved foot body 2, which is convenient for the subsequent adjustment of the length, spacing, and height of the curved foot joint, and the installation efficiency is extremely high.

[0061] The working principle and use process of this utility model:

[0062] During assembly, first, insert the curved foot body 2 into the wall-entered pipe fitting 1. The depth of the insertion needs to ensure that the active part 32 can contact the passive part 31 after the curved foot body 2 is rotated; then, open the opening of the elastic clamping pin 41 with a certain diameter and sleeve it into the limiting groove 11 on the outer periphery of the wall-entered pipe fitting 1, and then insert the free end of the clamping part 411 of the elastic clamping pin 41 into the guide through-hole 43. Under the action of the elastic force, the free end of the clamping part 411 will automatically guide through the guide through-hole 43 and enter the annular groove of the curved foot body 2 to form a limiting fit with it. At this time, the installation length of the wall-entered pipe fitting 1 and the curved foot body 2 is restricted.

[0063] When using,

[0064] First, use your hand or an adjustable wrench to rotate the curved foot body 2 so that the active portion 32 contacts and engages with the passive portion 31. Then continue rotating the curved foot body 2 to rotate the wall-mounted pipe fitting 1 on the municipal water pipe until the wall-mounted pipe fitting 1 and the municipal water pipe are screwed and locked, completing the installation of the wall-mounted pipe fitting 1.

[0065] Secondly, use your hand or a wrench to deform the elastic pin 41 in the yield cavity A of the locking portion 411, that is, drive the free end of the locking portion 411 to move in the direction away from the guide through-hole 43 until the free end disengages from the fitting portion 42; at this time, the curved foot body 2 can be driven to move axially along the wall-entered pipe fitting 1 until the fitting length is adjusted; then, after the length adjustment is completed, the force applied to the elastic pin 41 by the hand or the wrench can be released, and the elastic pin 41, due to its own elastic force, the free end of the locking portion 411 on it will automatically pass through the guide through-hole 43 and form a limiting fit with the annular groove to limit the length; finally, if the rotation angle of the curved foot body 2 needs to be adjusted, only the hand needs to apply a rotational force to the curved foot body 2, and the annular groove of the curved foot body 2 will slide relative to the free end of the locking portion 411 until the curved foot body 2 rotates to the fitting angle. Therefore, the present invention has a simple structure, is easy to install, easy to implement and has low cost, and solves the problems of the existing curved foot joints that are cumbersome and inconvenient to install; the technical solution of the present invention is that when installing the curved foot joint, the curved foot body 2 is driven to rotate on the wall-entering pipe fitting 1, driving the active part 32 to correspondingly abut against the passive part 31, so that the two are in contact with each other to form a connection and fit, and then the wall-entering pipe fitting 1 can be linked to rotate synchronously by continuing to screw the curved foot body 2, completing the screw connection and locking between the wall-entering pipe fitting 1 and the municipal water pipe entering the room, and the installation is fast and convenient; in the present invention, even if the municipal water pipe in the wall is buried deeper, there is no need to rely on an external wrench during the entire installation process, and the installation can be completed by the synchronous rotation function of the curved foot body 2 linked to the wall-entering pipe fitting 1, so the installation efficiency is higher, and the wall-entering pipe fitting 1 no longer needs to reserve and process the inner hexagonal hole, thereby reducing the processing cost.

[0066] Second embodiment

[0067] See also Figure 7 and Figure 8

[0068] The difference between this embodiment and the first embodiment is that the limiting structure of this embodiment is different; this embodiment eliminates the elastic pin 41, the plurality of matching portions 42 and the guide through-hole 43 of the limiting structure of the first embodiment, and provides a limiting structure of another structural style; the limiting structure includes a stop ring 44, which has a certain elasticity, see Figure 7 When the curved foot body 2 is axially inserted into the wall pipe 1, the curved foot body 2 passes through the wall pipe 1 to form a free end protrusion for placing the stop ring 44; see Figure 8 By controlling the stop ring 44 by hand, its diameter can be expanded to be mounted on the protruding part of the free end of the curved foot body 2. After that, when the hand is released, the stop ring will automatically shrink elastically. In this way, the stop ring can constrain the displacement of the curved foot body 2 in the axial direction relative to the wall-entered pipe fitting 1. This structural design is simple to install, easy to assemble, and has low cost.

[0069] Third embodiment

[0070] See also Figure 9 and Figure 10

[0071] This embodiment differs from the first embodiment in that the passive portion 31 and the active portion 32 in the co-rotating structure have different structures; that is, the passive portion 31 is a mating groove provided on the outer wall surface of the wall-entry pipe fitting 1, and the active portion 32 is a guide block on the curved foot body 2. When the curved foot body 2 rotates on the wall-entry pipe fitting 1, the guide block moves within the mating groove and abuts against the wall surface of the mating groove to form a mating engagement.

[0072] Therefore, when in use, first, rotate the curved foot body 2 by a certain angle so that the active part 32 on the curved foot body 2 is aligned with the passive part of the wall-entering pipe fitting 1; then, insert the curved foot body 2 into the wall-entering pipe fitting 1 so that the guide block falls into the matching groove; in this way, when the curved foot body 2 is subjected to rotational force, the guide block can be pressed against the groove wall surface of the matching groove, driving the wall-entering pipe fitting 1 to rotate synchronously.

[0073] Fourth embodiment

[0074] See also Figure 11 and Figure 12

[0075] The difference between this embodiment and the first embodiment is that the passive part 31 and the active part 32 in the rotating structure have different structures; that is, the passive part 31 is a clamping block provided on the outer wall surface of the wall-entered pipe fitting 1, and the active part 32 is configured as a contact surface on the outer wall of the curved foot body 2 (the contact surface is actually the side wall surface of the curved foot body 2). When the curved foot body 2 rotates on the wall-entered pipe fitting 1, the contact surface on the curved foot body 2 follows and abuts against the clamping block to form a connection with it.

[0076] Therefore, when in use, the curved foot body 2 is inserted into the wall-entered pipe fitting 1, and then only a rotational force needs to be applied to the curved foot body 2 to drive the curved foot body 2 to rotate on the wall-entered pipe fitting 1. The contact surface on the curved foot body 2 will abut against the clamping block to link the wall-entered pipe fitting 1 to rotate synchronously. This structural design method saves more process and is conducive to saving costs.

[0077] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A wall-mounted curved leg joint, comprising a wall-mounted pipe fitting for threaded connection with a water pipe inside a wall, and a curved leg body located outside the wall and axially plugged into the wall-mounted pipe fitting; characterized in that: Also includes: Co-rotation structure and limit structure; The synchronous rotation structure includes a passive portion provided on the outer wall surface of the wall-entering pipe fitting and an active portion provided on the curved foot body. When the wall-entering pipe fitting is screwed and locked with the water pipe inside the wall, the curved foot body is driven to rotate on the wall-entering pipe fitting, driving the active portion to abut against the passive portion to form a contact and cooperate, thereby linking the wall-entering pipe fitting to synchronous rotation. The limiting structure is used to constrain the displacement of the curved leg body relative to the wall-entering pipe in the axial direction.

2. The wall-mounted curved leg joint according to claim 1, wherein: The passive portion on the wall-entering pipe is located at one end close to the curved foot body.

3. The wall-mounted curved leg joint according to claim 1, wherein: The passive part is a first abutment block provided on the outer wall surface of the wall-entering pipe fitting, and the active part is a second abutment block on the curved foot body. The curved foot body rotates on the wall-entering pipe fitting, driving the second abutment block to abut against the first abutment block for engagement and cooperation.

4. The wall-mounted curved leg joint according to claim 1, wherein: The passive part is a matching groove provided on the outer wall surface of the wall-entering pipe fitting, and the active part is a guide block on the curved foot body. When the curved foot body rotates on the wall-entering pipe fitting, the guide block moves in the matching groove and abuts against the wall surface of the matching groove to form a joint fit.

5. The wall-mounted curved leg joint according to claim 1, characterized in that: The passive part is a clamping block provided on the outer wall of the wall-entering pipe fitting, and the active part is configured as a contact surface on the outer wall of the curved foot. When the curved foot body rotates on the wall-entering pipe fitting, the contact surface on the curved foot body moves with the clamping block to form a connection with it.

6. A wall-mounted curved leg joint according to any one of claims 1 to 5, characterized in that: The limiting structure includes an elastic clamping pin, a plurality of matching parts formed on the outer peripheral wall of the curved foot and a guide through-hole formed on the side wall of the wall-entering pipe fitting; the elastic clamping pin is installed at a limiting position on the outer peripheral position of the wall-entering pipe fitting; under the action of elastic force, the elastic clamping pin can guide the free end of its clamping part through the guide through-hole and form a limiting fit with the matching part on the curved foot body; by shifting the clamping part on the outer peripheral of the curved foot, the free end is linked to disengage the matching part, so that the curved foot body can be displaced axially along the wall-entering pipe fitting.

7. The wall-mounted curved leg joint according to claim 6, characterized in that: When the curved leg body is inserted into the wall-mounted pipe fitting, the guide through-hole corresponds to any of the matching portions.

8. The wall-mounted curved leg joint according to claim 6, characterized in that: The matching portion is an annular groove, and a plurality of the annular grooves are axially and evenly spaced on the outer peripheral wall of the wall-entering pipe fitting.

9. The wall-mounted curved leg joint according to claim 6, characterized in that: The locking portion of the elastic locking pin is configured as a curved hook, and the free end of the curved hook can be guided through the guide through-hole; the curved hook forms a clearance cavity relative to the outer peripheral wall of the curved foot body, and the locking portion can be moved through the clearance cavity.

10. The wall-mounted curved leg joint according to any one of claims 1 to 5, characterized in that: The limiting structure includes a stop snap ring. When the curved foot body is axially inserted into the wall-entering pipe fitting, the portion of the curved foot body that passes through the wall-entering pipe fitting is sleeved with the stop snap ring to constrain the axial displacement of the curved foot body relative to the wall-entering pipe fitting through the stop snap ring.

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