A quick disconnect coupling

Abstract

The utility model discloses one kind of unlocking tool of quick connector belongs to joint equipment technical field.The unlocking tool includes unlocking plug, the unlocking plug includes first cylinder and the second cylinder at the lower end of first cylinder, the through hole that is equipped with in the lateral side of second cylinder is passed;Protective shell is hollow structure, the unlocking plug is located in protective shell interior, the assembly hole is equipped with in the left and right sides of protective shell;The side of the fixed pin is passed assembly hole on protective shell and the through hole on second cylinder, make unlocking plug and protective shell rotary connection.The utility model can be under the condition of not damaging female and male joint, the female and male joint of the novel quick connector of assembly is disassembled, when vehicle maintenance, female and male joint can be split, carry out individual replacement, convenient operation, and effectively reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to an unlocking tool for quick-connect connectors, belonging to the technical field of connector equipment. Background Technology

[0002] In systems with high axial space requirements and low pressure, such as fuel systems and thermal management systems, quick-connect couplings are widely used due to their quick connection and easy disassembly. They are especially advantageous in situations where air pipe connections are inconvenient or difficult to access. However, quick-connect couplings used in commercial vehicle braking systems currently have the following problems: once the male and female quick-connect couplings are assembled, they cannot be disassembled. If either the male or female coupling is damaged, both must be replaced, increasing maintenance costs. Utility Model Content

[0003] To address the problem of the inability to disassemble the male and female connectors in existing technologies, we propose a quick-connect connector unlocking tool.

[0004] A tool for unlocking a quick-connect connector, characterized in that the tool comprises:

[0005] The unlocking plug includes a first cylinder 1 and a second cylinder 2 located at the lower end of the first cylinder 1, and the second cylinder 2 is provided with a through hole 201 penetrating its lateral side;

[0006] The protective housing 3 is a hollow structure, the unlocking plug is located inside the protective housing 3, and the protective housing 3 has mounting holes 301 on both the left and right sides;

[0007] The fixing pin 4 has one side passing through the assembly hole 301 on the protective housing 3 and the through hole 201 on the second cylinder 2, so that the unlocking plug is rotatably connected to the protective housing 3.

[0008] Furthermore, a first inner cavity 101 is provided at the opening of the first cylinder 1.

[0009] Furthermore, a second inner cavity 202 is provided at the opening of the second cylinder 2.

[0010] Furthermore, the second cylinder 2 is provided with limiting grooves 203 on both the left and right sides above the through hole 201.

[0011] Furthermore, a limiting protrusion 302 corresponding to and connected to the limiting groove 203 is provided on one side of the inner wall of the protective housing 3.

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention allows for the disassembly of the assembled new quick-connect connector without damaging the male and female connectors. During vehicle maintenance, the male and female connectors can be separated and replaced individually, which is convenient and effectively reduces maintenance costs. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model, which also serves as an abstract drawing.

[0015] Figure 2 This is a three-dimensional schematic diagram of the overall structure of this utility model from another angle.

[0016] Figure 3 This is a schematic cross-sectional view of the present invention.

[0017] Figure 4 This is a cross-sectional schematic diagram of the unlocking device in this utility model.

[0018] Figure 5 This is a side view of the protective shell 3 in this utility model.

[0019] Figure 6 This is a front view schematic diagram of the protective shell 3 in this utility model.

[0020] Figure 7 This is a schematic diagram of the male connector 6 in a specific implementation.

[0021] Figure 8 This is a cross-sectional schematic diagram of the male connector 6 in a specific embodiment.

[0022] Figure 9 This is a schematic diagram of the female connector 5 in a specific embodiment.

[0023] Figure 10 This is a schematic diagram of the conical retaining ring 601 on the male connector 6.

[0024] Figure 11 This is a cross-sectional schematic diagram showing the mating connection between female connector 5 and male connector 6.

[0025] Figure 12 for Figure 11 An enlarged schematic diagram of 'a' in the diagram.

[0026] Figure 13 This is a schematic diagram of the working conditions in step two of the specific implementation method.

[0027] Figure 14 This is a schematic diagram of the working conditions in step three of the specific implementation method.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. First cylinder; 101. First inner cavity; 2. Second cylinder; 201. Through hole; 202. Second inner cavity; 203. Limiting groove; 3. Protective shell; 301. Assembly hole; 302. Limiting protrusion; 4. Fixing pin; 5. Female connector; 501. Groove; 6. Male connector; 601. Conical retaining ring. Detailed Implementation

[0030] The following is a specific embodiment of this utility model with reference to the accompanying drawings, detailing its structure and implementation method. It should be noted that the scope of application of this utility model is not limited to the following embodiment; all similar structures based on this utility model are within its scope of application.

[0031] A tool for unlocking quick-connect connectors, used to disassemble female and male connectors. There are two existing specifications of quick-connect connectors; the following description uses one specification as an example. The unlocking tool includes:

[0032] like Figures 1-6 As shown, the unlocking plug includes a first cylinder 1 and a second cylinder 2 located at the lower end of the first cylinder 1. The outer diameter of the second cylinder 2 is slightly smaller than the minimum inner diameter of the female connector 5. The second cylinder 2 is provided with a through hole 201 penetrating its lateral side.

[0033] The protective housing 3 is a hollow structure. The unlocking plug is located inside the protective housing 3. The protective housing 3 has mounting holes 301 on both the left and right sides. The protective housing 3 is used to protect the end of the unlocking plug from damage.

[0034] The fixing pin 4 has one side passing through the assembly hole 301 on the protective housing 3 and the through hole 201 on the second cylinder 2, so that the unlocking plug is rotatably connected to the protective housing 3. When in use, the unlocking plug can be unscrewed out of the protective housing 3.

[0035] As a further description of this embodiment, such as Figure 1 As shown, the first cylinder 1 has a first inner cavity 101 at its opening.

[0036] As a further description of this embodiment, such as Figure 2 and Figure 13 As shown, the second cylinder 2 has a second inner cavity 202 at the opening. The diameter of the second inner cavity 202 is slightly larger than the outer diameter of the small end of the right side of the conical retaining ring 601 on the male connector 6. When disassembling the female connector 5 and the male connector 6, the second inner cavity 202 is fitted onto the end of the male connector 6. The second inner cavity 202 squeezes the outer conical surface of the conical retaining ring 601, causing the conical retaining ring 601 to shrink.

[0037] As a further description of this embodiment, such as Figures 3-4As shown, the second cylinder 2 has limiting grooves 203 on both the left and right sides above the through hole 201.

[0038] As a further description of this embodiment, such as Figures 3-6 As shown, the inner wall of the protective housing 3 is provided with a limiting protrusion 302 that is connected to the limiting groove 203. When not in use, the unlocking plug is rotated so that the limiting protrusion 302 on the protective housing 3 is embedded into the limiting groove 203 on the second cylinder 2 for fixation, thus protecting the unlocking plug from damage.

[0039] The working principle and steps of this utility model are as follows:

[0040] Step 1: As Figures 11-12 As shown, when the female connector 5 and the male connector 6 are assembled, the tapered retaining ring 601 on the male connector 6 is engaged in the groove 501 in the inner wall of the female connector 5, and the two are locked together.

[0041] Step Two: As Figure 13 As shown, use an unlocking tool to unlock. First, unscrew the unlocking plug so that the second inner cavity 202 fits onto the end of the male connector 6.

[0042] Step 3: As Figure 14 As shown, the right hand holds the unlocking tool and pushes it inward, while the left hand holds the outer wall of the female connector 5 and pushes it outward. The second inner cavity 202 squeezes the outer conical surface of the conical retaining ring 601, causing the conical retaining ring 601 to contract. After contraction, the conical retaining ring 601 disengages from the groove 501 in the inner wall of the female connector 5. At this time, the outer diameter of the left end of the conical retaining ring 601 is smaller than the minimum diameter of the inner wall of the female connector 5, thus enabling the disassembly of the female connector 5 and the male connector 6. When the quick-connect plug is of another specification, the first cylinder 1 is used to perform the above operation.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A tool for unlocking a quick-connect connector, characterized in that, The unlocking tool includes: The unlocking plug includes a first cylinder (1) and a second cylinder (2) located at the lower end of the first cylinder (1), and the second cylinder (2) is provided with a through hole (201) penetrating its lateral side. The protective housing (3) is a hollow structure. The unlocking plug is located inside the protective housing (3). The protective housing (3) has mounting holes (301) on both the left and right sides. A fixing pin (4) is used, with one side of the fixing pin (4) passing through the mounting hole (301) on the protective housing (3) and the through hole (201) on the second cylinder (2), so that the unlocking plug is rotatably connected to the protective housing (3).

2. The unlocking tool for a quick-connect connector according to claim 1, characterized in that, The first cylinder (1) has a first inner cavity (101) at its opening.

3. The unlocking tool for a quick-connect connector according to claim 1, characterized in that, The second cylinder (2) has a second inner cavity (202) at its opening.

4. The unlocking tool for a quick-connect connector according to claim 1, characterized in that, The second cylinder (2) is provided with limiting grooves (203) on both the left and right sides above the through hole (201).

5. The unlocking tool for a quick-connect connector according to claim 4, characterized in that, The inner wall of the protective housing (3) is provided with a limiting protrusion (302) that is connected to the limiting groove (203).

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