Quick-pulling type copper pipe clamping sleeve lubricating connector
By designing components such as limit beads and pull-out limit sleeves, the quick-release copper tube ferrule lubrication joint solves the problem of inconvenient disassembly in the existing technology, and achieves efficient separation of copper tubes and installation parts and cost optimization.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2026-03-27
AI Technical Summary
The existing copper pipe compression fitting lubrication joint requires the tightening nut to be removed before disassembly, which is inconvenient and inefficient.
A quick-release copper pipe compression fitting lubrication connector was designed, which uses components such as a limit bead, a pull-out limit sleeve, a metal spring, a metal sealing ring, and a locking nut. By pulling the pull-out limit sleeve, the limit bead is released from locking, thus achieving quick separation of the copper pipe and the connector, avoiding the need for additional tools for disassembly.
It achieves efficient separation of copper pipes and mounting components without the need for additional tools, reducing overall size and cost, and improving disassembly efficiency.
Smart Images

Figure CN224050133U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a joint, especially to a quick pull type copper pipe clamping sleeve lubricating joint. BACKGROUND
[0002] The copper pipe clamping sleeve lubricating joint is a kind of fitting for pipeline connection, and is especially designed for application occasions needing to add lubricant to reduce friction or wear.The joint is usually made of copper alloy, and is widely used due to its good electrical conductivity, thermal conductivity and corrosion resistance.
[0003] The existing clamping sleeve lubricating joint relies on the clamping nut to press the metal sealing ring to bite the copper pipe, and when the copper pipe needs to be disassembled, the clamping nut must be removed, the joint is small, disassembly is relatively inconvenient, and the efficiency is low. UTILITY MODEL CONTENTS
[0004] In order to overcome the shortcomings of the existing clamping sleeve lubricating joint, which needs to be disassembled first, and due to the small size of the joint, the operation is inconvenient, resulting in low disassembly efficiency, the utility model can provide a quick pull type copper pipe clamping sleeve lubricating joint.
[0005] The technical scheme of the utility model is: a quick pull type copper pipe clamping sleeve lubricating joint, comprising:
[0006] The female head of the quick pull joint:
[0007] The limiting bead is embedded in the left side of the female head of the quick pull joint;
[0008] The pulling limiting sleeve is slidingly connected to the left side of the female head of the quick pull joint;
[0009] The metal spring is sleeved on the left side of the female head of the quick pull joint;
[0010] The metal sealing ring is sleeved in the female head of the quick pull joint;
[0011] The clamping nut is threadedly connected to the right side of the female head of the quick pull joint;
[0012] The male head of the quick pull joint is sleeved on the left side of the female head of the quick pull joint; and
[0013] The copper pipe is arranged in the female head of the quick pull joint.
[0014] Further, the metal stop ring is arranged in the left side of the female head of the quick pull joint and has a positioning groove.
[0015] Further, the rubber sealing ring is sleeved on the right side of the male head of the quick pull joint.
[0016] Further, the right side of the groove of the male head of the quick pull joint is designed as an inclined surface.
[0017] Further, the limiting bead is made of steel material.
[0018] Further, the groove where the limiting bead is located is designed with edge limitation.
[0019] Further, the contact surface of the copper pipe is coated with a polytetrafluoroethylene coating.
[0020] Further, the pulling limiting sleeve is provided with gripping grooves on the front and rear sides.
[0021] Further, the buckle nut is externally designed with anti-skid texture.
[0022] Further, the part of the metal sealing ring in contact with the copper pipe is treated with mirror polishing process.
[0023] Beneficial effects are: 1, the utility model discloses a right pulling limiting sleeve, and the locking of the limiting bead is released, and the male head of the quick pull connector is pulled to the left, so that the male head of the quick pull connector and the female head of the quick pull connector are separated, and the copper pipe is not disassembled with additional tools to achieve the function of separating the copper pipe and the mounting piece, and the operation is efficient.
[0024] 2, the utility model discloses a copper pipe without additional tools to avoid the deformation of the copper pipe and the metal sealing ring due to disassembly.
[0025] 3, the utility model discloses the design, without excessive joint, the overall size is reduced, the overall structure is optimized, and the cost is reduced. DRAWINGS
[0026] Figure 1 It is a three-dimensional structure schematic view of the utility model.
[0027] Figure 2 It is an explosion drawing of the utility model.
[0028] Figure 3 It is a sectional view of the female head of the quick pull connector of the utility model.
[0029] Figure 4 It is a sectional view of the pulling limiting sleeve of the utility model.
[0030] Figure 5 It is a structure schematic view of the male head of the quick pull connector of the utility model.
[0031] In the drawing mark: 1-female head of quick pull connector, 101-connection part, 102-limiting position, 2-male head of quick pull connector, 201-groove, 3-pulling limiting sleeve, 301-gripping groove, 302-protruding part, 4-limiting bead, 5-metal sealing ring, 6-buckle nut, 7-rubber sealing ring, 8-metal baffle ring, 9-metal spring, 10-copper pipe. CONCRETE IMPLEMENTATION
[0032] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0033] A quick-release copper pipe ferrule lubrication connector, such as Figures 1-5 As shown, the device includes a quick-release female connector 1, a quick-release male connector 2, a pull-out limiting sleeve 3, limiting beads 4, a metal sealing ring 5, a fastening nut 6, a metal spring 9, and a copper tube 10. Several limiting beads 4 are embedded inside the left side of the quick-release female connector 1. The limiting beads 4 are made of steel to ensure sufficient strength and a stable connection. The groove containing the limiting beads 4 has edge restrictions, allowing the limiting beads 4 to move freely within the groove without falling off. The pull-out limiting sleeve 3 is slidably connected to the left side of the quick-release female connector 1. The pull-out limiting sleeve 3 has gripping grooves 301 on both its front and rear sides for easy gripping. A metal spring 9 is fitted on the left side of the quick-release female connector 1, connecting the connecting part 101 of the quick-release female connector 1 to the protrusion 302 of the pull-out limiting sleeve 3. A metal sealing ring 5 is fitted inside the quick-release female connector 1. Ring 5, the quick-release female connector 1 has an internal threaded connection to a locking nut 6 on the right side. The locking nut 6 has an anti-slip texture on the outside, which increases the feel and friction during operation, making the installation or disassembly process more convenient. The quick-release male connector 2 is fitted inside the left side of the quick-release female connector 1. The right side of the quick-release male connector 2 has a groove 201 that matches the limiting bead 4. The right side of the groove 201 of the quick-release male connector 2 is designed as a bevel to facilitate the smooth movement of the limiting bead 4 into the groove 201. The quick-release female connector 1 has a copper tube 10 inside. The contact surface of the copper tube 10 is coated with a polytetrafluoroethylene coating, which facilitates the passage of the copper tube 10 through various components, enhances the corrosion resistance of the copper tube 10, and extends its service life. The part of the metal sealing ring 5 that contacts the copper tube 10 is treated with a mirror polishing process, which improves the fit between the metal sealing ring 5 and the copper tube 10 and further enhances the sealing performance.
[0034] like Figure 3 As shown, it also includes a metal retaining ring 8. The left side of the quick-release connector female head 1 has a positioning groove, and the positioning groove is provided with a metal retaining ring 8. The metal retaining ring 8 is used to limit the movement space of the pull-out limiting sleeve 3.
[0035] like Figure 5 As shown, it also includes a rubber sealing ring 7. The rubber sealing ring 7 is sleeved on the outer right side of the quick-connect male connector 2. When the quick-connect male connector 2 is inserted into the quick-connect female connector 1, the rubber sealing ring 7 can cooperate with the inner wall of the quick-connect female connector 1 to complete the seal.
[0036] Pull the pull limiting sleeve 3 to the right to move the pull limiting sleeve 3 out of the top of the groove where the limiting bead 4 is located, so that the limiting bead 4 has a displacement space, then insert the quick connector male head 2, then push back the pull limiting sleeve 3, so that the limiting bead 4 is in close contact with the groove 201 to fasten the quick connector male head 2 to complete the combination of the quick connector female head 1 and the quick connector male head 2; during subsequent use, without disassembling the fastening nut 6, only need to pull the pull limiting sleeve 3 to the right, to release the locking of the limiting bead 4, pull the quick connector male head 2 to the left, the quick connector male head 2 and the quick connector female head 1 can be separated; when using, the copper pipe 10 needs to be combined with the quick connector female head 1, the copper pipe 10 is sequentially inserted through the fastening nut 6, the metal sealing ring 5, the quick connector female head, the copper pipe 10 is extended to the limiting position 102 in the inner cavity of the quick connector female head, then the metal sealing ring 5 and the fastening nut 6 are sequentially pushed into the inner cavity of the quick connector female head, the fastening nut 6 is rotated to lock the quick connector female head, so that the metal sealing ring 5 is squeezed to tightly bite the copper pipe 10, and the sealing effect is achieved.
[0037] The above embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application, so that equivalent changes made according to the content described in the claims of the present application should be included in the scope of the claims of the present application.
Claims
1. A quick-plug copper pipe sleeve lubricating joint, comprising: a female quick-plug joint (1) ; a limiting bead (4) embedded in the left inner part of the female quick-plug joint (1) ; a pulling limiting sleeve (3) slidingly connected to the left outer part of the female quick-plug joint (1) ; a metal spring (9) sleeved on the left outer part of the female quick-plug joint (1) ; a metal sealing ring (5) sleeved in the female quick-plug joint (1) ; a clamping nut (6) threadedly connected to the right inner part of the female quick-plug joint (1) ; a male quick-plug joint (2) sleeved in the left inner part of the female quick-plug joint (1) ; and a copper pipe (10) arranged in the female quick-plug joint (1).
2. A quick connect copper tube coupling as claimed in claim 1, further characterized by comprising: a metal retaining ring (8) arranged in the left outer part of the female quick-plug joint (1) and having a positioning groove.
3. A quick connect copper tube coupling as claimed in claim 2, further characterized by comprising: a rubber sealing ring (7) sleeved on the right outer part of the male quick-plug joint (2).
4. A quick-release copper pipe ferrule lubrication joint as described in claim 3, characterized in that, The right side of the groove (201) of the male quick-plug joint (2) is designed as an inclined surface.
5. A quick connect copper tube coupling as defined in claim 4 wherein, The limiting bead (4) is made of steel.
6. A quick-release copper pipe ferrule lubrication joint as described in claim 5, characterized in that, The groove where the limiting bead (4) is arranged is designed with edge limitation.
7. A quick connect copper tube coupling as defined in claim 6 wherein, The contact surface of the copper pipe (10) is coated with a polytetrafluoroethylene coating.
8. A quick connect copper tube coupling as defined in claim 7 wherein, The pulling limiting sleeve (3) is provided with gripping grooves (301) on both the front and back sides.
9. A quick-release copper pipe ferrule lubrication joint as described in claim 8, characterized in that, The clamping nut (6) is designed with anti-slip texture on the outside.
10. A quick connect copper tube coupling as defined in claim 8 wherein, The part of the metal sealing ring (5) in contact with the copper pipe (10) is treated with mirror polishing process.