An adjustable length copper connector

Abstract

The utility model discloses a length-adjustable copper joint, comprising a first external threaded joint, a second external threaded joint having a telescopic tube telescopically arranged in the first external threaded joint, an adjusting mechanism, and a sealing assembly. The utility model has the following advantages and effects: the telescopic tube of the second external threaded joint is telescopically arranged in the first external threaded joint, and the end of the telescopic tube and the first external threaded joint are sealed by the sealing assembly, thereby ensuring the sealing during the telescopic process; at the same time, when the adjusting mechanism adjusts the spacing between the first external threaded joint and the second external threaded joint, the spacing between the two is adjusted by pulling the first external threaded joint and the second external threaded joint outwardly, or by pushing the first external threaded joint and the second external threaded joint inwardly, and after the adjustment, the rotation of the first adjusting arm and the second adjusting arm is limited by the limiting structure to fix them.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline accessories, in particular to a length-adjustable copper joint. Background Art

[0002] Copper joints are joints made of copper materials and used to connect pipes, equipment, bathroom fixtures, wires and cables, and other products. During the use of copper joints, the problem of the length of the copper joints being too long or too short is often encountered. In the process of using the copper joints, the problem of mismatched lengths is often solved by combining two copper joints of different lengths. However, the copper joints are still inconvenient to use, so there is an urgent need to design a length-adjustable copper joint. Utility Model Content

[0003] The utility model aims to provide a length-adjustable copper joint, which has the function of adjusting the length.

[0004] The above technical purpose of the utility model is achieved through the following technical solutions: a length-adjustable copper joint, comprising a first externally threaded joint, a second externally threaded joint having a telescopic tube telescopically arranged in the first externally threaded joint, an adjusting mechanism arranged between the first externally threaded joint and the second externally threaded joint to adjust the distance between the two, and a sealing component arranged between the first externally threaded joint and the end of the telescopic tube and maintaining sealing during the telescopic process of the telescopic tube; a first regular polygonal portion is arranged on the circumferential side of the first externally threaded joint near one end of the second externally threaded joint, and a second regular polygonal portion is arranged on the circumferential side of the second externally threaded joint near one end of the first externally threaded joint, and the adjusting mechanism comprises a plurality of first adjusting arms with one end hinged on the first regular polygonal portion, a plurality of second adjusting arms with one end hinged on the second regular polygonal portion and the other end hinged to the first adjusting arm, and a limiting structure arranged between the first adjusting arm and the second adjusting arm to limit the rotation of the first adjusting arm and the second adjusting arm.

[0005] By adopting the above technical solution, the telescopic tube of the second externally threaded joint is telescopically arranged in the first externally threaded joint, and the end of the telescopic tube and the first externally threaded joint are sealed by a sealing assembly, thereby ensuring the sealing during the telescopic process; at the same time, when the adjustment mechanism adjusts the spacing between the first externally threaded joint and the second externally threaded joint, the spacing between the two is adjusted by pulling the first externally threaded joint and the second externally threaded joint outward, or by pushing the first externally threaded joint and the second externally threaded joint inward, and after the adjustment, the rotation of the first adjustment arm and the second adjustment arm is limited by the limiting structure to fix them.

[0006] The utility model is further configured as follows: the limiting structure includes a rotating shaft arranged at the end of the first adjusting arm and passing through the end of the second adjusting arm, a limiting ring arranged on the rotating shaft and telescopically extended along the axial direction of the rotating shaft, and a locking knob threadedly connected to the end of the rotating shaft and pressing the limiting ring onto the second adjusting arm; the second adjusting arm is provided with a plurality of limiting grooves distributed in a circular array along the axis of the rotating shaft, and the limiting ring is provided with a limiting protrusion embedded in the limiting groove when pressing the second adjusting arm.

[0007] By adopting the above technical solution, when adjusting the spacing between the first external threaded joint and the second external threaded joint, the locking knob is loosened to make the limiting protrusion disengage from the limiting groove, thereby allowing the first adjustment arm and the second adjustment arm to be adjusted; and the limiting protrusion is embedded in the limiting groove, and the limiting sleeve is telescopically arranged on the rotating shaft along the axial direction of the rotating shaft, thereby ensuring that the hinges of the first adjustment arm and the second adjustment arm are not loosened.

[0008] The utility model is further configured as follows: in the process of adjusting the spacing between the first external thread joint and the second external thread joint, the hinge point of the first adjustment arm and the second adjustment arm is located within the range between the first regular polygon part and the second regular polygon part.

[0009] By adopting the above technical solution, the hinge point of the first adjusting arm and the second adjusting arm is located within the range between the first regular polygon part and the second regular polygon part, so that the hinge point of the first adjusting arm and the second adjusting arm is not easy to hit other objects during use.

[0010] The utility model is further configured as follows: an annular groove is provided on the circumferential side of one end of the telescopic tube telescopically arranged in the first external threaded joint, a plurality of annular grooves are provided in the annular groove, and the sealing assembly includes a plurality of rubber sealing rings embedded in the annular groove and pressed against the inner wall of the first external threaded joint.

[0011] By adopting the above technical solution, the setting of the annular groove provides installation space for the setting of the rubber sealing ring, and the setting of the annular groove is also for the rubber sealing ring to be embedded, so that during the extension and retraction process of the telescopic tube, the rubber sealing ring is not easily twisted, thereby ensuring the sealing effect.

[0012] The utility model is further configured as follows: a telescopic groove is provided at an opening of the first external threaded joint close to the second external threaded joint, the inner diameter of the telescopic tube is the same as the inner diameter of the first external threaded joint, and the inner diameter of the telescopic tube is the same as the inner diameter of the second external threaded joint.

[0013] By adopting the above technical solution, the telescopic groove can be set for the telescopic tube so that the inner diameter of the telescopic tube is the same as the inner diameter of the first external threaded joint, and the inner diameter of the telescopic tube is the same as the inner diameter of the second external threaded joint, ultimately ensuring the smoothness of the medium flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model;

[0016] Figure 3 It is a partial cross-sectional view of the utility model.

[0017] Figure numerals: 1. first external threaded joint; 11. first regular polygonal portion; 12. telescopic groove; 2. second external threaded joint; 21. telescopic tube; 211. annular groove; 212. annular groove; 22. second regular polygonal portion; 3. adjusting mechanism; 31. first adjusting arm; 32. second adjusting arm; 321. limiting groove; 33. limiting structure; 331. rotating shaft; 332. limiting ring; 3321. limiting protrusion; 333. locking knob; 4. sealing assembly; 41. rubber sealing ring. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Embodiment: A length-adjustable copper joint, such as Figure 1 and Figure 3 As shown, it includes a first external threaded joint 1, a second external threaded joint 2 having a telescopic tube 21 telescopically arranged in the first external threaded joint 1, an adjustment mechanism 3 arranged between the first external threaded joint 1 and the second external threaded joint 2 and capable of adjusting the distance between the two, and a sealing assembly 4 arranged between the first external threaded joint 1 and the end of the telescopic tube 21 and maintaining sealing during the telescopic process of the telescopic tube 21.

[0020] like Figure 1 and Figure 2As shown, the first outer thread joint 1 is provided with a first regular polygonal part 11 on the circumferential side close to one end of the second outer thread joint 2, and the second outer thread joint 2 is provided with a second regular polygonal part 22 on the circumferential side close to one end of the first outer thread joint 1, and the adjustment mechanism 3 includes a plurality of first adjustment arms 31 hinged at one end on the first regular polygonal part 11, a plurality of second adjustment arms 32 hinged at one end on the second regular polygonal part 22 and hinged to the first adjustment arm 31 at the other end, and a limiting structure 33 arranged between the first adjustment arm 31 and the second adjustment arm 32 and limiting the rotation of the first adjustment arm 31 and the second adjustment arm 32. At the same time, in the process of adjusting the spacing between the first outer thread joint 1 and the second outer thread joint 2, the hinge point of the first adjustment arm 31 and the second adjustment arm 32 is located within the range between the first regular polygonal part 11 and the second regular polygonal part 22. When adjusting the length, the size of the first regular polygonal part 11 and the second regular polygonal part 22 can be changed according to the actual product, and the initial position of each hinge point can be adjusted to achieve different ranges of adjustment. The drawings in the specification are only simply schematic.

[0021] like Figure 2 As shown, the limiting structure 33 includes a rotating shaft 331 arranged at the end of the first adjusting arm 31 and passing through the end of the second adjusting arm 32, a limiting ring 332 arranged on the rotating shaft 331 along the axial direction of the rotating shaft 331, and a locking knob 333 threadedly connected to the end of the rotating shaft 331 and pressing the limiting ring 332 onto the second adjusting arm 32; the second adjusting arm 32 is provided with a plurality of limiting grooves 321 distributed in a circular array along the axis of the rotating shaft 331, and the limiting ring 332 is provided with a limiting protrusion 3321 embedded in the limiting groove 321 when pressing the second adjusting arm 32.

[0022] like Figure 1 and Figure 3 As shown, a ring groove 211 is provided on the circumferential side of one end of the telescopic tube 21 telescopically arranged in the first external threaded joint 1, and a plurality of ring grooves 212 are provided in the ring groove 211. The sealing assembly 4 includes a plurality of rubber sealing rings 41 embedded in the ring groove 212 and pressed against the inner wall of the first external threaded joint 1. A telescopic groove 12 is provided at the opening of the first external threaded joint 1 close to the second external threaded joint 2, and the inner diameter of the telescopic tube 21 is the same as the inner diameter of the first external threaded joint 1, and the inner diameter of the telescopic tube 21 is the same as the inner diameter of the second external threaded joint 2.

[0023] Implementation effect: The telescopic tube 21 of the second externally threaded joint 2 is telescopically arranged in the first externally threaded joint 1, and the end of the telescopic tube 21 and the first externally threaded joint 1 are sealed by the sealing assembly 4, thereby ensuring the sealing during the telescopic process; at the same time, when the adjustment mechanism 3 adjusts the spacing between the first externally threaded joint 1 and the second externally threaded joint 2, the spacing between the two is adjusted by pulling the first externally threaded joint 1 and the second externally threaded joint 2 outward, or by pushing the first externally threaded joint 1 and the second externally threaded joint 2 inward, and after adjustment, the first adjustment arm 31 and the second adjustment arm 32 are limited in rotation by the limiting structure 33 to fix them.

[0024] When adjusting the spacing between the first external threaded joint 1 and the second external threaded joint 2, the locking knob 333 is loosened to disengage the limiting protrusion 3321 from the limiting groove 321, so that the first adjustment arm 31 and the second adjustment arm 32 can be adjusted; and the limiting protrusion 3321 is embedded in the limiting groove 321, and the limiting sleeve is telescopically arranged on the rotating shaft 331 along the axial direction of the rotating shaft 331, so that the hinge of the first adjustment arm 31 and the second adjustment arm 32 can be ensured to be loose. The setting of the annular groove 211 provides installation space for the setting of the rubber sealing ring 41, and the setting of the annular groove 212 is provided for the rubber sealing ring 41 to be embedded, so that the rubber sealing ring 41 is not easy to be twisted during the telescopic process of the telescopic tube 21, thereby ensuring the sealing effect. The setting of the telescopic groove 12 can be provided for the telescopic tube 21, so that the inner diameter of the telescopic tube 21 is the same as the inner diameter of the first external threaded joint 1, and the inner diameter of the telescopic tube 21 is the same as the inner diameter of the second external threaded joint 2, and finally ensures the smoothness of the medium flow.

[0025] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A length-adjustable copper joint, characterized in that: The invention comprises a first externally threaded joint (1), a second externally threaded joint (2) having a telescopic tube (21) telescopically arranged in the first externally threaded joint (1), an adjustment mechanism (3) arranged between the first externally threaded joint (1) and the second externally threaded joint (2) and capable of adjusting the distance between the two, and a sealing assembly (4) arranged between the first externally threaded joint (1) and the end of the telescopic tube (21) and capable of maintaining a seal during the telescopic process of the telescopic tube (21); The first externally threaded joint (1) is provided with a first regular polygonal portion (11) on the circumferential side close to one end of the second externally threaded joint (2); the second externally threaded joint (2) is provided with a second regular polygonal portion (22) on the circumferential side close to one end of the first externally threaded joint (1); the adjustment mechanism (3) comprises a plurality of first adjustment arms (31) with one end hinged to the first regular polygonal portion (11); a plurality of second adjustment arms (32) with one end hinged to the second regular polygonal portion (22) and the other end hinged to the first adjustment arm (31); and a limiting structure (33) provided between the first adjustment arm (31) and the second adjustment arm (32) and limiting the rotation of the first adjustment arm (31) and the second adjustment arm (32).

2. The length-adjustable copper joint according to claim 1, characterized in that: The limiting structure (33) comprises a rotating shaft (331) arranged at the end of the first adjusting arm (31) and passing through the end of the second adjusting arm (32), a limiting ring (332) arranged on the rotating shaft (331) in an axial direction of the rotating shaft (331) and being telescopically arranged, and a locking knob (333) threadedly connected to the end of the rotating shaft (331) and realizing the pressing of the limiting ring (332) onto the second adjusting arm (32); The second adjusting arm (32) is provided with a plurality of limiting grooves (321) distributed in a circumferential array along the axis of the rotating shaft (331), and the limiting ring (332) is provided with a limiting protrusion (3321) which is embedded in the limiting groove (321) when the second adjusting arm (32) is pressed.

3. The length-adjustable copper joint according to claim 1, characterized in that: In the process of adjusting the spacing between the first external thread joint (1) and the second external thread joint (2), the hinge point of the first adjustment arm (31) and the second adjustment arm (32) is located within the range between the first regular polygon part (11) and the second regular polygon part (22).

4. The length-adjustable copper joint according to claim 1, characterized in that: An annular groove (211) is provided on the circumferential side of one end of the telescopic tube (21) telescopically arranged in the first external threaded joint (1), a plurality of annular grooves (212) are provided in the annular groove (211), and the sealing assembly (4) comprises a plurality of rubber sealing rings (41) embedded in the annular grooves (212) and pressed against the inner wall of the first external threaded joint (1).

5. The length-adjustable copper joint according to claim 1, characterized in that: The first externally threaded joint (1) is provided with a telescopic groove (12) near the opening of the second externally threaded joint (2); the inner diameter of the telescopic tube (21) is the same as the inner diameter of the first externally threaded joint (1); and the inner diameter of the telescopic tube (21) is the same as the inner diameter of the second externally threaded joint (2).

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