Quick adjusting type limiting structure for curved foot connector and curved foot connector

Abstract

The utility model discloses a quick adjusting type limiting structure for a curved foot connector and the curved foot connector. The quick adjusting type limiting structure is used for adjusting the total installation length of a first pipe fitting and a second pipe fitting of the curved foot connector in the axial direction. The quick-adjusting type limiting structure is characterized by comprising a guide through hole, a first pipe fitting and a second pipe fitting, the plurality of matching parts are formed on the peripheral wall of the second pipe fitting; when the second pipe fitting is inserted into the first pipe fitting, the guide through hole corresponds to any matching part; the elastic clamping needle is mounted at the peripheral position of the first pipe fitting in a limiting manner; under the action of elastic force, the elastic clamping needle enables the free end of the clamping part to penetrate through the guide through hole in a guiding mode and to be matched with the matching part in a limiting mode. 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 solves the problems that an existing bent foot connector is inconvenient to install and wastes time and labor by adopting a screw screwing mode.

Description

Technical Field

[0001] The utility model relates to the technical field of curved pin connectors, in particular to a quick-adjustment limiting structure for a curved pin connector and the curved pin connector. Background Art

[0002] Curved-leg connectors are primarily used to connect water inlet pipes embedded in the wall to the shower unit. Traditional curved-leg connectors are typically integrated. During installation, two connectors are screwed onto the two water inlet pipes separately, and then the shower unit is fitted with the two connectors. However, during installation, it's often found that the length, spacing, and height of the two connectors don't fit the shower unit perfectly, making assembly difficult.

[0003] To address the assembly difficulties of the aforementioned integrated curved-leg connector, such as (Publication No.: CN113217729A), this improved structure divides the traditional integrated connector into a first pipe member and a second pipe member. The second pipe member is inserted into the first pipe member and can be axially extended and circumferentially rotated. During actual use, the length, spacing, and height of the two connectors can be appropriately adjusted. After adjustment, the first and second pipe members can be slowly fixed in place by turning the screws with a wrench, so that they can adapt to shower heads 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 will still exist during the installation process: First, when the two water inlet pipes in the wall are buried deep, the curved foot joint needs to be extended very deep into the wall to complete the sealed connection with the water inlet pipes. After the connection is completed, the reserved space is extremely narrow, which is seriously insufficient for the wrench to tighten the screws, making the installation more inconvenient; second, the method of tightening the screws for positioning is not only slow, time-consuming and labor-intensive to install, but also may directly lead to the inability to install, especially if the screws fall off or slip during installation, which poses certain risks.

[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 quick-adjustable limit structure for a curved foot joint, which has a simple structure, is easy to install, easy to implement and low in cost, and solves the problem that the existing curved foot joint uses a screw-tightening method that is inconvenient, time-consuming and labor-intensive to install. The utility model mainly adopts the following technical solutions:

[0007] A quick-adjust limit structure for a curved foot joint, which is used to adjust the total installation length of the first tube and the second tube of the curved foot joint in the axial direction; it is characterized in that the quick-adjust limit structure includes: a guide through-hole, which is formed on the side wall of the first tube; a plurality of matching parts, which are formed on the outer peripheral wall of the second tube; when the second tube is inserted into the first tube, the guide through-hole corresponds to any of the matching parts; an elastic clamping pin, which is limitedly installed at a peripheral position of the first tube; 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; the clamping part on the outer periphery of the second tube is moved to link the free end to disengage the matching part, so that the second tube can be displaced axially along the first tube.

[0008] 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 second pipe.

[0009] Preferably, several of the matching parts are arranged in a spiral shape.

[0010] Preferably, 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.

[0011] Preferably, the curved hook forms a clearance cavity relative to the outer peripheral wall of the second tube, and the clamping part can be moved through the clearance cavity.

[0012] Preferably, the elastic clamping pin surrounds at least half of the outer circumference length of the first tube to form a clamping fit therewith, so as to be installed at a limited position on the outer circumference of the first tube.

[0013] Preferably, a limiting groove is formed on the outer peripheral wall of the first tube for the installation and placement of the elastic clamping pin, and the elastic clamping pin forms a locking fit with the first tube in the limiting groove.

[0014] Preferably, a guide notch is provided on the outer peripheral wall of the second pipe, and the free end of the locking portion can be placed in the guide notch and disconnected from the matching portion, so that the second pipe can be displaced axially along the first pipe.

[0015] A curved leg joint comprises a curved leg joint body, and the quick-adjustable limiting structure is arranged on the curved leg joint body.

[0016] 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:

[0017] (1) The present invention provides a quick-adjust limit structure and a curved foot joint for a curved foot joint, which has a simple structure, is easy to install, easy to implement and has low cost, and solves the problem that the existing curved foot joint is inconvenient to install, time-consuming and labor-intensive by screwing. The technical solution of the present invention is to set an elastic clamping pin at the outer peripheral position of the first pipe fitting. Under the action of its own elastic force, the free end of the clamping part on the elastic clamping pin will automatically cooperate with the matching part on the second pipe fitting to achieve axial limitation of the first pipe fitting and the second pipe fitting. When the length needs to be adjusted, it is only necessary to simply turn the elastic clamping pin. The elastic clamping pin will quickly disengage from the matching part when subjected to a certain external force, and the subsequent axial installation length of the first pipe fitting and the second pipe fitting can be adjusted automatically according to needs. The use of turning the elastic clamping pin instead of the existing screwing method no longer relies on the use of a wrench, has low requirements on the size of the reserved space, is easier to install and more efficient, and during the installation process, only a simple turning action is required to quickly release the axial limitation of the first pipe fitting and the second pipe fitting, 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.

[0018] (2) In the present technical solution, the mating portion is in the form of an annular groove. This structure can ensure that the total axial installation length of the first pipe fitting and the second pipe fitting is limited. At the same time, the first pipe fitting and the second pipe fitting also have a circumferential rotation function, so that the first pipe fitting and the second pipe fitting can be adapted to more shower heads of different models and sizes, with stronger product strength and a wider range of applications.

[0019] (3) 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.

[0020] (4) 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.

[0021] (5) In the present technical solution, the elastic clamping pin can be locked with the first tube by surrounding at least half of the outer circumference of the first tube, so that it is not easy to fall off from the outer circumference of the first tube. The surrounding length of the elastic clamping pin can be selected according to the material cost, which can save materials to a certain extent.

[0022] (6) In the present technical solution, a guide notch is provided on the outer peripheral wall of the second pipe fitting. Thus, the second pipe fitting only needs to be rotated by a certain angle relative to the first pipe fitting until the free end of the locking portion is placed in the guide notch. The second pipe fitting can then be quickly axially displaced relative to the first pipe fitting to adjust its length without having to move the elastic locking pin. This makes the curved foot connector easier to assemble with the shower head body, and the installation efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0025] Figure 2 The explosion of the embodiment of the utility model Figure 1 ;

[0026] Figure 3 An exploded cross-sectional view of an embodiment of the present utility model;

[0027] Figure 4 The explosion of the embodiment of the utility model Figure 2 ;

[0028] Figure 5 This is a schematic structural diagram of an elastic card pin according to an embodiment of the present utility model;

[0029] Figure 6 This is a structural schematic diagram of an elastic card pin provided on a guide cutout in an embodiment of the present utility model.

[0030] The description of the accompanying drawings is as follows: 1. first tube; 11. annular groove; 2. second tube; 21. guide incision; 31. guide through hole; 32. matching part; 33. elastic clamping pin; 331. clamping part; A. clearance cavity. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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".

[0036] See Figures 1 to 6 .

[0037] This embodiment provides a quick-adjustment limit structure for a curved pin joint, which has a simple structure, is easy to install, easy to implement and has low cost, and solves the problem that the existing curved pin joint is inconvenient to install by screwing, which is time-consuming and labor-intensive. The structure of this utility model is mainly used to adjust the total installation length of the first pipe 1 and the second pipe 2 of the curved pin joint in the axial direction, that is, when the second pipe 2 is inserted into the first pipe 1, the total length of the first pipe 1 and the second pipe 2 after the combination is installed. The quick-adjustment limit structure of this embodiment includes: a guide through hole 31, a plurality of matching parts 32 and an elastic card pin 33, wherein,

[0038] See also Figures 1 to 4 ,include:

[0039] A guide hole 31 is formed on the side wall of the first tube 1, extending along the radial direction of the first tube 1 and passing through the side wall; the guide hole 31 is mainly used to provide a guide for the elastic card pin 33 to penetrate into or out of the first tube 1;

[0040] A plurality of mating portions 32 are formed on the outer wall of the second tube 2. When the second tube 2 is inserted into the first tube 1, the guide holes 31 correspond to any of the mating portions 32. Thus, as long as the elastic locking pin 33 is inserted into the guide holes 31 and passes through, the elastic locking pin 33 will be guided to mate with the mating portion 32.

[0041] The elastic clamping pin 33 is mainly a clamping pin arranged in an arc shape or an annular shape. It has a certain elasticity. The elastic clamping pin 33 has a locking portion 331. The elastic clamping pin 33 can be installed at a limited position on the outer periphery of the first tube 1. Under the action of its own elastic force, the elastic clamping pin 33 can guide the free end of the locking portion 331 on it through the guide through-hole 31 and form a limiting fit with the matching portion 32, so that the second tube 2 cannot be axially displaced relative to the first tube 1; by moving the locking portion 331 on the outer periphery of the second tube 2, the free end can be linked to disengage the matching portion 32, so that the second tube 2 can be displaced axially along the first tube 1.

[0042] In this embodiment, when the elastic locking pin 33 is limitedly installed at the outer periphery of the first tube 1, the locking portion 331 thereon is located at the outer periphery of the first tube 1, and the free end of the locking portion 331 is located at the inner position of the first tube 1, that is, the free end passes through the guide hole 31 inside the first tube 1.

[0043] In this embodiment, the plurality of mating portions 32 are respectively annular grooves, and the plurality of annular grooves are axially equidistantly arranged on the outer peripheral wall of the second tube 2; when the second tube 2 is inserted into the first tube 1 and axially displaced relative to the first tube 1, any annular groove can correspond to the guide through hole 31 on the first tube 1; when the elastic clamping pin 33 is guided through the guide through hole 31, it can enter the annular groove and form a stop fit therewith, that is, as long as the second tube 2 moves axially relative to the first tube 1, the annular groove is stopped by the free end of the elastic clamping pin 33 and cannot move, and the second tube 2 can only rotate relative to the first tube 1, so that the annular groove rotates along an annular trajectory relative to the free end of the elastic clamping pin 33.

[0044] Furthermore, in other embodiments, a plurality of mating portions 32 can also be designed to be arranged in a spiral shape (not shown), that is, the plurality of mating portions 32 on the outer periphery of the second tube fitting 2 are actually a plurality of external thread groove structures connected into one. In this way, while ensuring the original axial limitation, the structure can also ensure the circumferential rotation function between the first tube fitting 1 and the second tube fitting 2; and in the spiral structural design, when the second tube fitting 2 is axially rotated relative to the first tube fitting 1, the free end of the elastic clamping pin 33 will move along the spiral trajectory along the thread groove, that is, the second tube fitting 2 can be telescopically adjusted relative to the first tube fitting 1. At this time, the first tube fitting 1 and the second tube fitting 2 do not need to release the axial constraint of the elastic clamping pin 33. Direct rotation can control the second tube fitting 2 to slide on the first tube fitting 1 to fine-tune the length, which makes assembly more convenient and time-saving.

[0045] In this embodiment, the retaining portion 331 of the elastic engaging pin 33 is configured as a curved hook, the free end of which is guided through the guide hole 31. 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 engaging pin 33. This allows the free end of the curved hook to disengage the annular groove, allowing the second tube 2 to move axially along the first tube 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 31.

[0046] In this embodiment, see Figure 2 and Figure 5 In order to be able to be installed at a limited position on the outer periphery of the first tube 1, the elastic clamping pin 33 is arranged in an arc shape or a circular ring shape, and at least surrounds half of the outer circumference length of the first tube 1. Then, through its own elastic contraction force, it can form a clamping fit with the first tube 1 to be installed at a limited position on the outer periphery of the first tube 1.

[0047] In this embodiment, a retaining groove is formed on the outer wall of the first tube 1 for the installation and placement of the elastic locking pin 33. The elastic locking pin 33 forms the aforementioned locking engagement with the first tube 1 within the retaining groove. Thus, even if the elastic contraction force of the elastic locking pin 33 is insufficient to retain the first tube 1 after long-term use, the retaining effect of the retaining groove can constrain the elastic locking pin 33 within the retaining groove and prevent it from falling out.

[0048] In this embodiment, see Figure 6 A guide notch 21 is provided on the outer wall of the second tube fitting 2. The free end of the locking portion 331 of the elastic locking pin 33 can be placed in the guide notch 21 and disconnected from the matching portion 32 (annular groove). The second tube fitting 2 can be quickly axially displaced to adjust the length relative to the first tube fitting 1 without having to move the elastic locking pin 33. After the length is adjusted, it only needs to be rotated a certain angle, and the free end of the locking portion 331 will be placed in the annular groove to form a limit fit with it, thereby limiting the installation length of the first tube fitting 1 and the second tube fitting 2.

[0049] The working principle and use process of this utility model:

[0050] When assembling, see Figure 1 First, insert the second tube 2 into the first tube 1; then open the opening of the elastic clamping pin 33 with a certain diameter and put it into the limiting groove on the outer periphery of the first tube 1, and then insert the free end of the clamping portion 331 of the elastic clamping pin 33 into the guide through-hole 31. Under the action of the elastic force, the free end of the clamping portion 331 will automatically pass through the guide through-hole 31 and enter the annular groove of the second tube 2 to form a limiting fit with it. At this time, the installation length of the first tube 1 and the second tube 2 is restricted.

[0051] When in use, first screw the first pipe fitting 1 to connect the water channel of the water inlet pipe of the wall; then, use your hand or a wrench to deform the elastic clamping pin 33 in the yield cavity A of the clamping portion 331, that is, drive the free end of the clamping portion 331 to move in the direction away from the guide through-hole 31 until the free end disengages from the fitting portion 32; at this time, the second pipe fitting 2 can be driven to move axially along the first pipe fitting 1 until the adaptable length is adjusted; then, after the length adjustment is completed, the force applied by the hand or wrench to the elastic clamping pin 33 can be released. Due to the elastic force of the elastic clamping pin 33 itself, the free end of the clamping portion 331 on it will automatically pass through the guide through-hole 31 and form a limit fit with the annular groove 11 to limit the length; finally, if the rotation angle of the second pipe fitting 2 needs to be adjusted, only a rotating force needs to be applied to the second pipe fitting 2 by hand, and the annular groove of the second pipe fitting 2 will slide relative to the free end of the clamping portion 331 until the second pipe fitting 2 is rotated to the adaptable angle. The utility model has a simple structure, is easy to install, easy to implement and has low cost, and solves the problem that the existing curved foot joint adopts the screw-tightening method to install inconveniently, time-consuming and labor-intensively; the technical solution of the utility model is to set an elastic clamping pin 33 at the outer periphery of the first pipe 1. Under the action of its own elastic force, the free end of the clamping portion 331 on the elastic clamping pin 33 will automatically cooperate with the matching portion 32 on the second pipe 2 to realize the axial limitation of the first pipe 1 and the second pipe 2; when the length needs to be adjusted, it is only necessary to simply turn the elastic clamping pin 33, and the elastic clamping pin 33 will be adjusted. When the locking pin 33 is subjected to a certain external force, it will quickly disengage from the mating portion 32, and the axial installation length of the first pipe fitting 1 and the second pipe fitting 2 can be adjusted as needed. The elastic locking pin 33 is used to replace the existing screw-tightening method, and no longer relies on the use of a wrench. It has low 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 first pipe fitting 1 and the second pipe fitting 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.

[0052] 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 quick-adjustable limit structure for a curved-leg joint, which is used to adjust the total installation length of the first pipe and the second pipe of the curved-leg joint in the axial direction; characterized in that: The quick-adjust limit structure includes: a guide through hole formed on the side wall of the first tube; a plurality of matching portions formed on the outer peripheral wall of the second tube; when the second tube is inserted into the first tube, the guide through-hole corresponds to any of the matching portions; An elastic clamping pin is installed at a limiting position on the outer periphery of the first tube; under the action of elastic force, the free end of the clamping part of the elastic clamping pin can be guided through the guide through-hole and form a limiting fit with the matching part; the clamping part on the outer periphery of the second tube is moved, and the free end is linked to disengage from the matching part, so that the second tube can be displaced axially along the first tube.

2. A quick-adjustable limit structure for a curved leg joint according to claim 1, 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 second pipe.

3. A quick-adjustable limit structure for a curved leg joint according to claim 1, characterized in that: A plurality of the matching parts are arranged in a spiral shape.

4. A quick-adjustable limit structure for a curved leg joint according to claim 1, 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.

5. A quick-adjustable limiting structure for a curved leg joint according to claim 4, characterized in that: The curved hook forms a clearance cavity relative to the outer peripheral wall of the second tube, and the clamping part can be moved through the clearance cavity.

6. A quick-adjustable limit structure for a curved leg joint according to claim 1, characterized in that: The elastic clamping pin surrounds at least half of the outer circumference length of the first tube to form a clamping fit therewith, so as to be installed at a limited position on the outer circumference of the first tube.

7. A curved leg joint comprising a first pipe member and a second pipe member, characterized in that: It also includes the quick-adjustment limiting structure according to any one of claims 1 to 6, wherein the quick-adjustment limiting structure is provided on the first pipe and the second pipe.

8. A quick-adjustable limiting structure for a curved leg joint according to claim 7, characterized in that: A limiting groove for the elastic clamping pin to be installed and placed is formed on the outer peripheral wall of the first tube, and the elastic clamping pin forms a locking fit with the first tube in the limiting groove.

9. A quick-adjustable limiting structure for a curved leg joint according to claim 8, characterized in that: A guide notch is provided on the outer peripheral wall of the second pipe, and the free end of the locking portion can be placed in the guide notch and disconnected from the matching portion, so that the second pipe can be displaced axially along the first pipe.

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