Anti-vibration and anti-loosening quick coupling

Abstract

This utility model discloses a vibration-resistant and anti-loosening quick connector, relating to the field of quick connector technology. The utility model includes a first connector, a second connector on one side of the first connector, a quick-connect mechanism between the first and second connectors, and a reinforcing locking element between the quick-connect mechanism and the first connector. The quick-connect mechanism includes through grooves formed at the top and bottom of the second connector, and a rotating rod is movably connected to the inner wall of the through grooves via bearings. The quick-connect mechanism and reinforcing locking element of this utility model effectively solve the problems of easy loosening and insufficient sealing in traditional quick connectors. The quick-connect mechanism achieves fast and accurate connection, while also providing preliminary anti-loosening function, making operation convenient and efficient. The reinforcing locking element further improves the anti-loosening effect and sealing performance, ensuring reliable operation of the connector in vibration environments.

Description

Technical Field

[0001] This utility model belongs to the field of quick coupling technology, and in particular relates to a vibration-resistant and anti-loosening quick coupling. Background Technology

[0002] Quick couplings are widely used in various fluid transport systems and mechanical connections to achieve rapid connection and disconnection between pipes and equipment, improving work efficiency. Traditional quick couplings can meet the needs of rapid connection to a certain extent and are widely used in many industries such as industrial production, construction, and automobile manufacturing, providing convenience for various fluid transmission and equipment connection.

[0003] Chinese patent application CN221121381U discloses a stainless steel quick coupling comprising a coupling body, a first limiting ring, an O-ring, a nut, a sleeve, a second limiting ring, and a through cavity. The coupling body is located at the top of the coupling, with the first limiting ring on its lower side. An O-ring is located outside the first limiting ring, and a nut is located below the O-ring. A sleeve is connected below the nut, and a second limiting ring is located at the bottom of the sleeve. The coupling body has a through cavity inside. This stainless steel quick coupling features a threadless design, enabling quick connection and disassembly, saving time and effort, and facilitating replacement. The use of an O-ring provides excellent sealing, preventing liquid or gas leakage.

[0004] While the threadless design and O-ring seal enable quick connection, disassembly, and sealing, this design has certain drawbacks in practical applications. On the one hand, the joint relies solely on the O-ring seal for sealing, and in the face of vibration, the seal may shift or be damaged due to vibration, leading to a decrease in sealing performance and failing to effectively prevent media leakage. On the other hand, although its threadless design enables quick connection and disassembly, it lacks additional anti-loosening measures. Under vibration conditions, the joint is prone to loosening, affecting the stability of the connection and making it difficult to meet the demand for high-quality quick-connect connections under complex working conditions.

[0005] To address these issues, we provide a vibration-resistant and anti-loosening quick coupling. Utility Model Content

[0006] The purpose of this utility model is to provide a vibration-resistant and anti-loosening quick connector. Through the cooperation of the first connector, the second connector, the quick connection mechanism and the reinforced locking member, the problem of poor anti-loosening effect of the quick connector in the prior art is solved.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0008] This utility model relates to a vibration-resistant and anti-loosening quick connector, comprising a first connector, a second connector on one side of the first connector, a quick-connect mechanism between the first and second connectors, and a reinforcing locking member between the quick-connect mechanism and the first connector; the quick-connect mechanism includes through grooves at the top and bottom of the second connector, a rotating rod movably connected to the inner wall of the through grooves via bearings, a pressing protrusion fixedly sleeved on the surface of the rotating rod, an anti-loosening protrusion on one side of the pressing protrusion, an annular groove for cooperating with the pressing protrusion at the top of the first connector, and a connecting handle fixedly connected to one side of the pressing protrusion; the reinforcing locking member... The component includes a connecting sleeve, one side of which is fixedly connected to a connecting handle. A locking bolt is provided inside the connecting sleeve. A locking screw hole for use with the locking bolt is opened on the top of the first connector. The quick connection mechanism achieves quick connection and initial anti-loosening of the first and second connectors through unique extrusion protrusions, anti-loosening protrusions, and annular grooves. The operation is simple and quick. The reinforced locking component further improves the anti-loosening effect and sealing performance, effectively solving the problems of easy loosening and insufficient sealing performance of traditional quick connectors under vibration environment. It comprehensively improves the reliability and stability of quick connectors under complex working conditions and meets the needs of different industries for high-quality connection of quick connectors.

[0009] The present invention is further provided that a knob is fixedly connected to the top of the locking bolt, and the surface of the knob is provided with anti-slip texture.

[0010] The present invention is further configured such that a groove is provided on one side of the first connector to cooperate with the movement of the anti-loosening protrusion, and one side of the groove is connected to the annular groove.

[0011] The present invention is further configured such that a first sealing gasket is provided in the inner cavity of the first connector, and a second sealing gasket is provided in the inner cavity of the second connector.

[0012] The present invention is further configured such that an annular insert plate that mates with the second connector is fixedly connected to one side of the first connector.

[0013] The present invention is further configured such that there are two connecting handles, which are symmetrically arranged at the top and bottom of the second connecting head.

[0014] The present invention is further configured such that the number of locking bolts and locking screw holes is two sets, and the two sets of locking bolts and locking screw holes are symmetrically arranged at the top and bottom of the first connector.

[0015] The present invention has the following beneficial effects.

[0016] 1. The quick connection mechanism and reinforced locking component of this utility model effectively solve the problems of easy loosening and insufficient sealing of traditional quick connectors. The quick connection mechanism realizes fast and accurate connection, and at the same time has a preliminary anti-loosening function. It is convenient and efficient to operate. The reinforced locking component further improves the anti-loosening effect and sealing performance, ensuring that the connector can operate reliably in a vibration environment.

[0017] 2. The knob and anti-slip texture of this utility model facilitate the operation of the locking bolt, the groove and annular groove ensure the smooth operation of the quick connection mechanism, the second sealing gasket enhances the sealing performance, the annular insert plate improves the connection accuracy, and the symmetrically arranged connecting handle, locking bolt, and locking screw hole improve the ease of operation and the anti-loosening effect. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a three-dimensional diagram of a vibration-resistant and anti-loosening quick coupling.

[0020] Figure 2 This is a cross-sectional perspective view of a vibration-resistant and anti-loosening quick coupling.

[0021] Figure 3 This is a schematic diagram of the separation of a vibration-resistant and anti-loosening quick coupling.

[0022] Figure 4 This is a schematic diagram of an annular groove, extrusion protrusion, anti-loosening protrusion, and connecting handle in a vibration-resistant and anti-loosening quick coupling.

[0023] Figure 5 This is a schematic diagram showing the separation of the connecting sleeve, locking bolt, and locking screw hole in a vibration-resistant and anti-loosening quick coupling.

[0024] In the attached diagram: 1. First connector; 2. Second connector; 3. Quick-connect mechanism; 4. Reinforcing locking element; 31. Through groove; 32. Rotating rod; 33. Extrusion protrusion; 34. Anti-loosening protrusion; 35. Annular groove; 36. Connecting handle; 41. Connecting sleeve; 42. Locking bolt; 43. Locking screw hole; 421. Knob; 101. Groove; 201. Second sealing gasket; 102. Annular insert plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Example 1 Please see Figure 1-5This utility model is a vibration-resistant and anti-loosening quick connector, including a first connector 1, a second connector 2 on one side of the first connector 1, a quick connection mechanism 3 between the first connector 1 and the second connector 2, and a reinforcing locking member 4 between the quick connection mechanism 3 and the first connector 1; the quick connection mechanism 3 includes through grooves 31 opened at the top and bottom of the second connector 2, a rotating rod 32 movably connected to the inner wall of the through groove 31 via bearings, a pressing protrusion 33 fixedly sleeved on the surface of the rotating rod 32, an anti-loosening protrusion 34 on one side of the pressing protrusion 33, an annular groove 35 for cooperating with the pressing protrusion 33 opened at the top of the first connector 1, and a connecting handle 36 fixedly connected to one side of the pressing protrusion 33; the reinforcing locking member 4 includes a connecting sleeve 41, one side of the connecting sleeve 41 fixedly connected to the connecting handle 36, a locking bolt 42 provided in the inner cavity of the connecting sleeve 41, and a locking screw hole 43 for cooperating with the locking bolt 42 opened at the top of the first connector 1.

[0027] Specifically, the quick-connect mechanism 3, through its unique extrusion protrusion 33, anti-loosening protrusion 34, and annular groove 35, achieves quick connection and initial anti-loosening of the first connector 1 and the second connector 2. The operation is simple and quick. The reinforced locking component 4 further improves the anti-loosening effect and sealing performance, effectively solving the problems of easy loosening and insufficient sealing performance of traditional quick connectors under vibration environment. It comprehensively improves the reliability and stability of quick connectors under complex working conditions and meets the needs of different industries for high-quality quick connector connections.

[0028] Example 2 Please see Figure 1-5 Based on Embodiment 1, a knob 421 is fixedly connected to the top of the locking bolt 42. The surface of the knob 421 is provided with anti-slip texture. A groove 101 is provided on one side of the first connector 1 to cooperate with the movement of the anti-loosening protrusion 34. One side of the groove 101 is connected to the annular groove 35. A first sealing gasket is provided in the inner cavity of the first connector 1. A second sealing gasket 201 is provided in the inner cavity of the second connector 2. An annular insert plate 102 that cooperates with the second connector 2 is fixedly connected to one side of the first connector 1. There are two connecting handles 36, which are symmetrically arranged at the top and bottom of the second connector 2. There are two sets of locking bolts 42 and locking screw holes 43, which are symmetrically arranged at the top and bottom of the first connector 1.

[0029] Specifically: The knob 421 on the top of the locking bolt 42 and the anti-slip texture design on its surface facilitate user operation of the locking bolt 42. The anti-slip texture increases the friction between the hand and the knob 421, making it easier and more precise for the user to tighten or loosen the locking bolt 42 by rotating the knob 421, thus improving the ease of operation. The groove 101 on one side of the first connector 1 communicates with the annular groove 35, providing a channel for the movement of the pressing protrusion 33 and the anti-loosening protrusion 34, ensuring the normal operation of the quick connection mechanism 3, making the connection process smoother, and ensuring that the anti-loosening protrusion 34 can accurately enter the annular groove 35 to achieve the initial anti-loosening function, thereby improving the reliability of the quick connection mechanism 3. The first sealing gasket is used to improve the sealing performance of the connection between the first connector 1 and the pipeline. When the first connector 1 and the second connector 2 are connected, the second sealing gasket 201 is squeezed and tightly fitted, effectively preventing media leakage. The cooperation between the annular insert plate 102 and the second connector 2 plays a limiting and guiding role, ensuring the accuracy of the insertion of the first connector 1 into the second connector 2. The two symmetrically arranged connecting handles 36 make the operation of the quick connection mechanism 3 more balanced and convenient, thereby better realizing the connection and adjustment of the first connector 1 and the second connector 2, improving the convenience of operation and the reliability of connection. The two sets of symmetrically arranged locking bolts 42 and locking screw holes 43 further enhance the anti-loosening effect. The symmetrically distributed structural design makes the locking force more uniform, effectively preventing the connecting handles 36 from moving, and ensuring the stability and sealing of the joint in a vibration environment.

[0030] The working principle of this utility model is as follows: The user inserts the first connector 1 into the second connector 2. During this process, the annular insert plate 102 on one side of the first connector 1 plays a role. Since its outer diameter matches the inner diameter of the second connector 2, it can limit and guide the insertion, ensuring accurate docking. As the first connector 1 is continuously inserted, the extrusion protrusion 33 and its anti-loosening protrusion 34 in the quick connection mechanism 3 pass through the groove 101 opened on one side of the first connector 1 and enter the annular groove 35 at the top of the first connector 1. Then, the user rotates the first connector 1 90 degrees. At this time, the anti-loosening protrusion 34 plays a key role, making the first connector 1 and the second connector 2 initially prevented from loosening. After that, the user moves the connecting handle 36, and the connecting handle 36 drives the extrusion plate 102 to rotate. When the protrusion 33 rotates, it compresses the inner wall of the annular groove 35, causing the first connector 1 to move to the right. The first connector 1 then compresses the second sealing gasket 201 inside the second connector 2 until the first connector 1, the second connector 2, and the second sealing gasket 201 are in close contact, achieving a quick connection between the first connector 1 and the second connector 2. At this time, the connecting handle 36 and the compressing protrusion 33 rotate 90 degrees to the left about the rotating rod 32, and the connecting handle 36 is in a horizontal state. When it is necessary to further enhance the anti-loosening effect, the user passes the locking bolt 42 through the connecting sleeve 41 and screws it into the locking screw hole 43 at the top of the first connector 1. This not only improves the anti-loosening effect but also prevents the connecting handle 36 from moving, ensuring the sealing of the joint.

[0031] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A vibration-resistant and anti-loosening quick connector, comprising a first connector (1), characterized in that: A second connector (2) is provided on one side of the first connector (1), a quick connection mechanism (3) is provided between the first connector (1) and the second connector (2), and a reinforcing locking member (4) is provided between the quick connection mechanism (3) and the first connector (1). The quick connection mechanism (3) includes through grooves (31) at the top and bottom of the second connector (2). A rotating rod (32) is movably connected to the inner wall of the through groove (31) via a bearing. A pressing protrusion (33) is fixedly sleeved on the surface of the rotating rod (32). An anti-loosening protrusion (34) is provided on one side of the pressing protrusion (33). An annular groove (35) for use with the pressing protrusion (33) is opened at the top of the first connector (1). A connecting handle (36) is fixedly connected to one side of the pressing protrusion (33). The reinforcing locking component (4) includes a connecting sleeve (41), one side of which is fixedly connected to the connecting handle (36). The inner cavity of the connecting sleeve (41) is provided with a locking bolt (42), and the top of the first connector (1) is provided with a locking screw hole (43) for use with the locking bolt (42).

2. The vibration-resistant and anti-loosening quick coupling according to claim 1, characterized in that: A knob (421) is fixedly connected to the top of the locking bolt (42), and the surface of the knob (421) is provided with anti-slip texture.

3. The vibration-resistant and anti-loosening quick coupling according to claim 1, characterized in that: The first connector (1) has a groove (101) on one side that moves in conjunction with the anti-loosening protrusion (34), and one side of the groove (101) is connected to the annular groove (35).

4. The vibration-resistant and anti-loosening quick coupling according to claim 1, characterized in that: The first connector (1) has a first sealing gasket in its inner cavity, and the second connector (2) has a second sealing gasket (201) in its inner cavity.

5. The vibration-resistant and anti-loosening quick coupling according to claim 1, characterized in that: The first connector (1) has an annular insert plate (102) fixedly connected to one side, which cooperates with the second connector (2).

6. The vibration-resistant and anti-loosening quick coupling according to claim 1, characterized in that: The number of connecting handles (36) is two, and the connecting handles (36) are symmetrically arranged at the top and bottom of the second connecting head (2).

7. The vibration-resistant and anti-loosening quick coupling according to claim 1, characterized in that: The number of locking bolts (42) and locking screw holes (43) is two sets, and the two sets of locking bolts (42) and locking screw holes (43) are symmetrically arranged at the top and bottom of the first connector (1).

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