Universal adjustable curved leg

By using the design of the universal adjustable curved foot and the combination structure of the male and female connector pipes, stepless angle adjustment and dynamic sealing are achieved, which solves the problems of narrow application range and insufficient robustness of existing curved feet, and is suitable for multi-angle fluid transmission scenarios.

CN224469889UActive Publication Date: 2026-07-07QUANZHOU XINHENGCHUAN KITCHEN & BATHROOM CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUANZHOU XINHENGCHUAN KITCHEN & BATHROOM CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing fixed-angle curved feet have a narrow range of applications, while adjustable-angle curved feet lack sufficient stability after adjustment.

Method used

A universal adjustable curved foot is designed. By combining the female and male connector pipes and using external threaded connection and fixing bolts for fastening, stepless angle adjustment can be achieved. The hollow flow channel structure of the inclined part and the straight pipe part increases the degree of adjustment freedom, and dynamic sealing is achieved by combining the ball head sealing ring.

Benefits of technology

It enables stepless angle adjustment in complex installation spaces, avoids pipeline interference, enhances connection strength, prevents displacement, and adapts to multi-angle fluid transmission.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224469889U_ABST
    Figure CN224469889U_ABST
Patent Text Reader

Abstract

This utility model belongs to the technical field of hardware accessories and provides a universal adjustable curved leg. The utility model includes a female connector tube and a male connector tube. The female connector tube includes an integrally formed fixed part and a female connector tube connection part. The external part of the female connector tube connection part is threaded, and the fixed part has several fixed threaded holes spaced around its perimeter. The male connector tube includes an integrally formed mating connection part and a male connector tube connection part. The external part of the male connector tube connection part is threaded. The mating connection part includes an inclined part connected to the male connector tube connection part at one end, and a straight tube part connected to the other end of the inclined part at one end. The other end of the straight tube part has a ball-head structure and is inserted into the female connector tube. The straight tube part is placed inside the fixed part and secured with a fixing bolt. Through the above configuration, universal adjustment of the male connector tube relative to the female connector tube can be achieved. Simultaneously, the tight fit of the fixing plate, the straight tube part, and the fixing bolts improves the connection stability after angle adjustment.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model belongs to the field of hardware accessories technology, specifically, it relates to a universal adjustable curved leg. Background Technology

[0002] A bendable joint, also known as an angle connector, is a type of connector used to change the direction of pipe connections. It typically has a curved structure and is used to optimize space layout, protect cables / pipes from breakage, and adapt to complex installation environments. There are two main types of bendable joints: fixed-angle bendable joints, which are the most widely available on the market, but their drawback is that the bending angle remains constant, limiting their applicability; and adjustable-angle bendable joints, which, due to their adjustable structure, have a wider range of applications than fixed-angle bendable joints, but suffer from issues such as insufficient stability after adjustment. Utility Model Content

[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a universally adjustable curved leg.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A universal adjustable curved leg includes a female connector tube and a male connector tube. The female connector tube includes an integrally formed fixed part and a female connector tube connection part. The external part of the female connector tube connection part is threaded. The fixed part is provided with a plurality of fixed threaded holes at intervals around its perimeter. The male connector tube includes an integrally formed mating connection part and a male connector tube connection part. The external part of the male connector tube connection part is threaded. The mating connection part includes an inclined part connected to the male connector tube connection part at one end, and a straight tube part connected to the other end of the inclined part at one end. The other end of the straight tube part has a ball head structure and is inserted into the female connector tube. The straight tube part is placed in the fixed part and is fastened by a fixing bolt.

[0006] Preferably, the female connector tube has a hollow structure, with one end open for insertion of the male connector tube, and the other end provided with a female connector flow channel.

[0007] Preferably, the male pipe connection part has an internal hollow structure, with one end open and the other end connected to the inclined part.

[0008] Preferably, the inclined portion has an internally hollow structure with openings at both ends, the diameter of one opening matching the diameter of the male pipe connection portion, and the diameter of the other opening matching the diameter of the straight pipe portion.

[0009] Preferably, the inclined portion, the straight portion, and the male pipe connection portion all have flow channels inside, and the flow channels of the three are connected to form a male pipe flow channel of the connector male pipe, and the end of the male pipe flow channel is connected to the opening of the female pipe flow channel.

[0010] Preferably, an annular groove is provided around the ball head of the straight tube section, and a sealing ring is provided in the annular groove.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model comprises two parts: a female connector and a male connector. The female connector includes an integral fixing part and a female connector connection part, while the male connector includes an integral mating connection part and a male connector connection part. The mating connection part includes an inclined part and a straight part. The end of the straight part has a ball-shaped structure and is inserted into the female connector. The female connector and the male connector are fastened together by fixing bolts. Through the above configuration, the male connector in this utility model can achieve stepless angle adjustment relative to the female connector, adapting to complex installation spaces. The design of the inclined part realizes the bending structure of the curved foot on the one hand, and increases the degree of adjustment freedom on the other hand, avoiding pipeline interference. The bolt locking structure formed by the fixing plate, the straight part, and the fixing bolts provides stable mechanical fixation, improves the connection firmness of the female connector and the male connector, and prevents displacement during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram showing the disassembled parts of this utility model.

[0015] Figure 3 This is a cross-sectional schematic diagram of the present invention.

[0016] The corresponding labels in the attached diagram are as follows: 1-Mother connector, 2-Main connector, 3-Fixing bolt;

[0017] 11-Fixing part, 12-Main pipe connection part, 13-Fixing threaded hole, 14-Main pipe flow channel opening;

[0018] 21-Matching connection part, 22-Main pipe connection part, 23-Main pipe flow channel; 211-Inclined part, 212-Straight pipe part; 2121-Ball head, 2122-Annular groove, 2123-Sealing ring. Detailed Implementation

[0019] To enable those skilled in the art to have a clearer understanding of this utility model, the following detailed description is provided in conjunction with embodiments. It should be understood that the specific embodiments described below are merely illustrative of this utility model and facilitate understanding. The technical solutions provided by this utility model are not limited to those provided in the following embodiments, nor should they limit the scope of protection of this utility model.

[0020] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "comprising" or "including," and similar expressions used in this application, mean that the element or object preceding the term encompasses the elements or objects listed following the term and their equivalents, without excluding other elements or objects. Positional relation terms such as "upper," "lower," "left," "right," "front," and "rear" are determined based on the layout orientation of the accompanying drawings and are used only to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Example

[0022] like Figures 1-3 As shown, this embodiment provides a universal adjustable curved leg, which is particularly suitable for fluid transmission scenarios requiring multi-angle adjustment. It mainly includes a female connector 1 and a male connector 2. The female connector 1 serves as the connecting and receiving component, while the male connector 2 serves as the main component. The angle adjustment is based on the angle adjustment of the male connector 2 relative to the female connector 1. Both the female connector 1 and the male connector 2 are provided with external threads for connection to external pipelines.

[0023] In this embodiment, the connector mother pipe 1 adopts an integral molding structure, which is divided into a fixing part 11 and a mother pipe connecting part 12. The outer surface of the mother pipe connecting part 12 is machined with external threads for connecting external pipelines or equipment. The fixing part 11 has four fixing threaded holes 13 evenly distributed around its circumference. Those skilled in the art can adjust the number of fixing threaded holes as needed. The hole diameter of the fixing threaded holes matches the standard fastening bolt.

[0024] The male connector 2 is integrally formed by the mating connection part 21 and the male connector part 22. The outer surface of the male connector part 22 is machined with external threads for connecting to the other side of the pipeline. The mating connection part 21 is further divided into: an inclined part 211: one end is connected to the male connector part 22, with an inclination angle of 30°. This angle is an example value and can be designed to be 15°-45° in practice; and a straight part 212: one end is connected to the inclined part 211, and the other end is formed into a ball head 2121. The radius of curvature of the ball head matches the inner cavity of the female connector 1. The straight part and the male connector part are arranged in parallel.

[0025] The connector female tube 1 has a hollow structure with an opening at one end for the ball head 2121 to be inserted, and a female tube flow channel 14 at the other end to connect to the external system. The male tube connection part 22, the inclined part 211 and the straight part 212 are all hollow and through-hole designed. The three are connected to form the male tube flow channel 23. The openings at both ends of the inclined part 211 are matched with the inner diameter of the male tube connection part 22 and the inner diameter of the straight part 212, respectively, so that the product can achieve a large flow rate. When the angle of the male tube relative to the connector female tube is fixed, the port of the male tube flow channel 23 and the female tube flow channel 14 are kept in fluid-sealed communication.

[0026] An annular groove 2122 with a depth of 1 mm is opened on the surface of the ball head 2121 of the straight pipe section 212. An O-ring 2123 made of rubber is installed in the annular groove 2122. The sealing ring is embedded in the annular groove, and its outer diameter is slightly larger than the curvature diameter of the ball head. When the ball head 2121 is inserted into the connector mother pipe 1, the sealing ring 2123 is deformed by pressure, realizing dynamic sealing during the universal adjustment process.

[0027] The assembly relationship of this utility model is as follows: the ball head 2121 of the straight tube part 212 is inserted into the inner cavity of the connector female tube 1, so that the connector male tube can rotate omnidirectionally around the ball center; the angle is locked by screwing the fixing bolt 3 into the fixing threaded hole 13 and pressing it against the rod body of the straight tube part 212.

[0028] The above description constitutes the preferred embodiment of this utility model. It should be noted that those skilled in the art can make several improvements without departing from the design principles and technical solutions of this utility model, and these improvements should also be considered within the protection scope of this utility model.

Claims

1. A universal adjustable curved leg, characterized in that: The device includes a female connector (1) and a male connector (2). The female connector (1) includes an integral fixing part (11) and a female connector connection part (12). The female connector connection part (12) has external threads on its exterior. The fixing part (11) has a plurality of fixed threaded holes (13) spaced around its perimeter. The male connector (2) includes an integral mating connection part (21) and a male connector connection part (22). The male connector connection part (22) has external threads on its exterior. The mating connection part (21) includes an inclined part (211) connected to the male connector connection part (22) at one end, and a straight part (212) connected to the other end of the inclined part (211) at one end. The other end of the straight part (212) has a ball head (2121) structure and is inserted into the female connector (1). The straight part (212) is placed in the fixing part (11) and fastened by a fixing bolt (3).

2. The universal adjustable curved leg according to claim 1, characterized in that: The female connector tube (1) has a hollow structure, with one end open for insertion of the male connector tube (2), and the other end is provided with a female connector flow channel (14).

3. The universal adjustable curved leg according to claim 2, characterized in that: The male pipe connection part (22) has an internal hollow structure, with one end open and the other end connected to the inclined part (211).

4. The universal adjustable curved leg according to claim 3, characterized in that: The inclined part (211) is hollow inside and open at both ends. The diameter of one end of the opening matches the diameter of the male pipe connection part (22), and the diameter of the other end of the opening matches the diameter of the straight pipe part (212).

5. The universal adjustable curved leg according to claim 4, characterized in that: The inclined part (211), the straight part (212) and the male pipe connection part (22) all have flow channels inside, and the flow channels of the three are connected to form the male pipe flow channel (23) of the connector male pipe (2), and the end of the male pipe flow channel (23) is connected to the mother pipe flow channel opening (14).

6. The universal adjustable curved leg according to any one of claims 1 to 5, characterized in that: An annular groove (2122) is provided around the ball head (2121) of the straight tube section (212), and a sealing ring (2123) is provided in the annular groove (2122).