A quick-mountable air compressor

Abstract

The utility model discloses a quick installation's air compressor, including fixed interface port, quick connector and locking piece. The fixed interface port is equipped with the core valve axle and spring self -sealing mechanism, and combines the double -sealed ring between the stud head and valve sleeve head, can open the gas path automatically when inserting, and prevent residual pressure leakage when pulling out automatically closes the gas path, and locking piece adopts the multi -point linkage ring, the mechanical locking structure of convex and clamping jaw, and realizes automatic alignment with the cooperation of joint and insertion slot. The utility model discloses compact structure, and combines the self -sealing valve core and double -sealed design, realizes the automatic leak -proof of gas path, and multi -point mechanical locking and self -locking convex ensure that the connection is firm and reliable under high -pressure environment, and the alignment guide simplifies the operation process, and the installation and dismounting efficiency are improved significantly, are applicable to high -pressure gas source quick switching, and have good industrial application value.

Description

Technical Field

[0001] This utility model relates to the field of quick-connect couplings for air compressors, specifically an air compressor that can be installed quickly. Background Technology

[0002] In existing quick-connect technologies for air compressors, common quick-connect devices mainly consist of a fixed port and a quick-connect plug, typically combined with a manually rotated locking sleeve or snap ring structure to achieve air circuit connection and fixation. The fixed port usually relies on a sealing ring or claws that contact the plug end face to ensure basic sealing, while the plug end uses a groove on its outer surface to engage with a spring-loaded component to complete the locking function. A typical structure is found in common industrial quick-connect couplings, where the fixed port has a static sealing ring. During insertion, the spring-loaded component must be manually compressed to allow the plug to pass through the sealing ring; subsequently, rotating the locking ring engages the spring-loaded component within the plug groove to achieve fixation. This type of structure is widely used in low-pressure or medium-pressure pneumatic systems.

[0003] However, the above-mentioned traditional structure still has the following shortcomings: The opening and closing of the gas circuit relies on manual operation: Since there is no automatic closing valve core inside the fixed connection port, the sealing element often cannot quickly block the gas circuit when the plug is pulled out, resulting in the untimely release of residual pressure, which poses a significant risk of leakage and also poses a safety hazard to the operator. The locking structure is simple and has poor reliability: the manual rotating locking ring or snap ring is prone to loosening or jamming due to material fatigue and environmental pollution. Especially under high pressure, the locking parts are prone to displacement or failure after being loaded, which affects the service life. Installation and disassembly are time-consuming and complex: the traditional plugging and locking process usually involves multiple steps: first plug in the air supply line, then lock it in place; when disassembling, the locking parts must be loosened first, and then the plug must be slowly pulled out. The whole process is complicated and laborious, which cannot meet the high-efficiency needs of multi-point rapid switching or frequent connection scenarios.

[0004] In summary, existing quick couplings are inadequate in terms of sealing performance, reliability, and ease of operation, and cannot simultaneously achieve automatic closure to prevent leakage and secure locking under high pressure. There is an urgent need for an improved structure that can achieve a self-sealing valve core, leak prevention, and mechanical quick locking. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is: an air compressor that can be installed quickly, including an air compressor unit, a fixed connection port, a quick-connect plug and a locking component.

[0007] The fixed connection port is fixed to the air inlet and outlet of the air compressor unit, and is equipped with a core valve shaft and a spring self-sealing mechanism; the inner cavity of the port is conical, gradually expanding in diameter on the side away from the locking part to form a low-resistance airflow channel and accommodate the sealing ring.

[0008] The quick-connect plug consists of a connecting tube, a connecting spring, a retaining ring, a valve sleeve, and a post. Several connecting holes are opened on the surface of the post, and sealing rings are provided on both sides of the holes. The valve sleeve is fixed to the connecting spring and slides around the outer periphery of the post.

[0009] The locking components include a flange seat, a linkage ring, grippers, a curved protrusion, and a control lever; the linkage ring is radially rotatably mounted on the surface of the flange seat, the inner side of the curved protrusion abuts against the grippers, and the grippers engage with the retaining ring to complete the locking.

[0010] In a preferred embodiment, the valve core is further configured such that, within the fixed connection port, a valve shaft and a spring are fitted together. When the plug is not inserted, the spring pushes the valve core to the sealing ring position, automatically closing the air passage. When the plug is inserted, the spring force overcomes the valve core to open, quickly connecting the air passage. Technical benefits: Automatic opening and closing of the air passage during insertion and removal prevents residual pressure leakage, simplifies the operation process, and improves safety.

[0011] In a preferred embodiment, a double seal is provided between the column head and the valve sleeve: the sealing rings on both sides of the connecting hole on the surface of the column head tightly fit and seal the inner wall of the valve sleeve, ensuring no leakage under high pressure. Technical effect: Improves sealing reliability and meets the requirements for long-term high-pressure use.

[0012] In a preferred embodiment, the flange seat is further configured with several sets of interlocking rings, curved protrusions, and clamp locking mechanisms. The user simultaneously drives multiple sets of clamps to engage the retaining rings via a control lever, achieving uniform locking. Technical benefits: Uniform locking stress distribution enhances the fastening strength and prevents loosening due to high-pressure vibration.

[0013] In a preferred embodiment, the surface is further configured such that the curved surface is arc-shaped, with one end gradually approaching the center of the linkage ring, so as to generate a self-locking effect when the linkage ring is manually deflected; the back side of the gripper slides smoothly along the curved surface to complete the locking. Technical effect: Improves the smoothness of the locking action and the self-locking performance, reducing the number of repeated adjustments.

[0014] In a preferred embodiment, the valve head end is further configured such that the fixed connection port and the valve sleeve end are respectively provided with a mating joint and a slot, enabling automatic alignment during insertion and removal. Technical benefits: Reduces assembly difficulty, ensures precise valve core alignment, and improves installation reliability.

[0015] Through the above configurations, this utility model can achieve the following under high pressure conditions: automatic opening and closing of the gas circuit and rapid response to prevent leakage; a combination of double sealing and multi-point mechanical locking to ensure long-term stable sealing; a combination of convex self-locking and multi-point engagement to improve locking stability and safety; and an integrated alignment and guidance design to simplify operation steps and significantly shorten installation and disassembly time.

[0016] The above technical solution significantly improves the sealing performance, reliability, and ease of operation of the quick coupling for air compressors compared to existing technologies, and has excellent industrial practical value.

[0017] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by setting a core valve shaft and a spring self-sealing mechanism in the fixed connection port, the function of automatically closing the gas path in the unconnected state and automatically opening the gas path when connected is realized, which simplifies the connection operation, effectively prevents gas leakage, and improves the safety and reliability of use.

[0018] 2. In this utility model, a mechanical locking structure consisting of a linkage ring, a curved convex ring, and a clamping claw, combined with a sealing ring on the outer circumference of the column head, achieves rapid engagement and secure locking of the quick-connect plug. It maintains stable sealing performance even under high pressure, significantly shortening installation and disassembly time and improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a schematic diagram of the surface structure of the fixed connection port and quick-connect plug according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the mounting structure of the fixed connection port and locking component according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the fixed connection port and locking member according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of a quick-connect plug according to an embodiment of the present invention; Figure 6 This is a schematic diagram showing the engagement state of the fixed port and quick-connect plug according to an embodiment of the present invention.

[0020] Figure label: 100. Air compressor unit; 200. Fixed connection port; 210. Core valve shaft; 211. Sliding shaft sleeve; 212. Spring; 300. Quick-connect plug; 310. Connecting tube; 320. Valve sleeve; 330. Column head; 311. Connecting spring; 312. Retaining ring; 331. Connecting hole; 400 Locking element; 410 Flange seat; 420 Linking ring; 430 Linkage ring; 440 Gripper; 421 Curved protrusion; 422 Control lever. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0022] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0023] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a quick-installation air compressor.

[0024] Combination Figures 1-6 As shown, the present invention provides a quick-installation air compressor, including an air compressor unit 100, a fixed connection port 200, a quick-connect plug 300, and a locking component 400.

[0025] In this embodiment, the fixed connection port 200 is fixedly installed at the air inlet and outlet of the air compressor unit 100 for mating with the quick-connect plug 300. Inside the fixed connection port 200, a sliding sleeve 211 is fixed along its axial direction. A core valve shaft 210 is slidably sleeved on the inner side of the sliding sleeve 211 to form a self-sealing valve core structure. A spring 212 is slidably sleeved on the surface of the core valve shaft 210. One end of the spring 212 abuts against the end of the sliding sleeve 211, and the other end abuts against the core valve shaft 210, used to push the core valve shaft 210 to the closed position when not engaged, thereby achieving automatic closure of the air passage. A sealing ring is provided on the inner wall of the fixed connection port 200, and its outer circumference abuts against the outer circumference of the core valve shaft 210 to ensure the sealing reliability in the self-sealing state; the inner cavity of the fixed connection port 200 is conical and gradually expands away from the locking member 400 to form an airflow gap on the outer circumference of the core valve shaft 210 to ensure that the air passage is unobstructed after engagement.

[0026] In this embodiment, the quick-connect plug 300 includes a connecting tube 310, a valve sleeve 320, and a post 330 fixed to one end of the connecting tube 310. One end of the connecting tube 310 is connected to the valve sleeve 320 via a connecting spring 311, which ensures the elastic offset of the valve sleeve 320 relative to the connecting tube 310. A retaining ring 312 is provided on the outer periphery of the connecting tube 310 for contacting and engaging with the linkage ring 430 in the locking member 400. Several connecting holes 331 are provided on the outer periphery of the post 330 for connecting with the airflow channel in the fixed connection port 200 after engagement. The valve sleeve 320 is slidably sleeved on the outer periphery of the post 330 and covers the outside of the connecting holes 331. A sealing ring is provided between the valve sleeve 320 and the post 330 to seal the connecting holes 331 and prevent gas leakage when not locked.

[0027] In this embodiment, the locking member 400 includes a flange seat 410 and a linkage ring 420 rotatably mounted on one side of the flange seat 410; a plurality of linkage rings 430 are radially rotatably mounted on the outer peripheral surface of the flange seat 410, the number of linkage rings 430 corresponding one-to-one with the curved protrusions 421 described later; a curved protrusion 421 is provided on the inner side of the linkage ring 420 to abut against the surface of the linkage ring 430, one end of the curved protrusion 421 being an arc-shaped surface that gradually approaches the center of the linkage ring 420, so as to realize that the curved protrusion 421 is in contact with the surface of the linkage ring 420. The thrust is transmitted to the linkage ring 430 when there is zero deflection; a control lever 422 is fixedly installed on the outer periphery of the linkage ring 420 for manual control of the deflection of the linkage ring 420; the surface of the flange seat 410 is also rotatably mounted with a gripper 440 via a rotating shaft. The gripper 440 interacts with the linkage ring 430 through the curved protrusion 421. When the linkage ring 420 deflects and drives the curved protrusion 421 to press the linkage ring 430, the linkage ring 430 drives the gripper 440 to engage the retaining ring 312 inward, thereby achieving mechanical locking of the quick connector 300.

[0028] Specifically, during the manual deflection process of the linkage ring 420, the curved protrusion 421 abuts against the back side of the linkage ring 430, thereby driving the deflection of the linkage ring 430. This causes the linkage ring 430 to abut against the retaining ring 312 on the surface of the connecting tube 310, thereby locking the relative position of the connecting tube 310 and the fixed connection port 200 and maintaining the relative engagement state between the column head 330 and the core valve shaft 210.

[0029] In this embodiment, one end of the fixed connection port 200 has a joint opening at the inner edge of the cavity that matches the end of the valve sleeve head 320; one end of the core valve shaft 210 is machined with a slot that matches the end of the column head 330, ensuring precise pushing and positioning of the core valve shaft 210 when the column head 330 is inserted.

[0030] Technical benefits: During the engagement process, it achieves rapid alignment and precise pushing, ensuring reliable valve core opening and stable positioning.

[0031] In this embodiment, an annular sealing ring is provided between the inner cavity of the fixed connection port 200 and the core valve shaft 210; the inner cavity of the fixed connection port 200 has a tapered and gradually expanding structure.

[0032] Technical effects: Enhanced sealing performance when the valve core is closed; optimized flow clearance after engagement, reduced air resistance, and improved airflow stability.

[0033] In this embodiment, there are four linkage rings 430, which are symmetrically arranged around the flange seat 410; the curved protrusion 421 slides against each linkage ring 430; the length and position of the control lever 422 are optimized to enable one-handed operation.

[0034] Technical benefits: Multi-point locking and uniform force distribution enhance reliable locking capability under high pressure; easy one-handed operation improves efficiency.

[0035] In this embodiment, the surface of the convex 421 adopts a semi-circular arc transition, and the distance between it and the center of the linkage ring 420 is gradually distributed.

[0036] Technical benefits: The engagement between the cam and the linkage ring is smoother, the resistance to manual rotation is lower, and the lifespan of the mechanism is longer.

[0037] In this embodiment, the sealing ring between the valve sleeve head 320 and the column head 330 is located on both sides of the connecting hole 331 and is made of high-pressure resistant nitrile rubber sealing ring.

[0038] Technical effect: Significantly improves the sealing reliability of the connecting hole 331 and prevents air leakage under high pressure.

[0039] Through the above structural design, this embodiment can automatically close the air passage when not engaged and automatically open the air passage when engaged. After engagement, it can achieve rapid and firm mechanical locking through multi-point curved convex-linkage ring-clamping. Combined with the conical cavity and sealing ring, it takes into account both air passage unobstructedness and high-pressure sealing. The overall operation process is simple and can be controlled with one hand, which greatly improves the efficiency of installation and disassembly and the safety of use.

[0040] Working principle and usage process of this utility model: This utility model relies on three main components: a fixed connection port, a quick-connect plug, and a locking mechanism. Through mechanical engagement and the self-sealing principle of the valve core, it achieves rapid and reliable connection and disconnection of the air compressor unit. Its working principle and usage process can be summarized as follows: Valve core self-sealing and air passage opening / closing: The fixed connection port 200 is equipped with a core valve shaft 210 and a spring 212. In the unconnected state, the spring pushes the core valve shaft towards the sealing ring, keeping the air passage closed. After the quick connector 300 post 330 is inserted into the fixed connection port, it pushes the core valve shaft to overcome the spring force, opening the air passage in the port and realizing the connection of the air passage.

[0041] Mechanical locking and sealing: After the connection is completed, the user manually rotates the connecting ring 420, causing the curved protrusion 421 to drive the clamp 440 to slide and abut along the retaining ring 312. The clamp engages with the retaining ring of the quick connector, forming a reliable mechanical locking. The sealing ring on the outer periphery of the column head 330 fits tightly with the valve sleeve head 320 to seal the connecting hole 331, ensuring no air leakage under high pressure conditions.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air compressor that can be quickly installed, characterized in that, include: An air compressor unit (100), a fixed connection port (200), a quick-connect plug (300), and a locking element (400) are provided. The fixed connection port (200) is fixed to the air inlet and outlet of the air compressor unit (100). A sliding sleeve (211) is fixedly installed on the inner side of the fixed connection port (200), and a core valve shaft (210) is slidably sleeved on the inner side of the sliding sleeve (211). A surface of the core valve shaft (210) is slidably sleeved with a component that is connected to the sliding sleeve (210). 211) A spring (212) abutting at the end; the locking member (400) includes a flange seat (410) and a linkage ring (420) rotatably mounted on one side of the flange seat (410); a gripper (440) is rotatably mounted on the surface of the flange seat (410); the inner side of the linkage ring (420) is provided with a curved protrusion (421) that abuts against the surface of the gripper (440), and a control lever (422) is fixedly mounted on the surface of the linkage ring (420); The quick-connect plug (300) includes a connecting tube (310), a valve sleeve (320), and a post (330) fixed to one end of the connecting tube (310); one end of the connecting tube (310) is provided with a connecting spring (311) connected to the valve sleeve (320); the surface of the connecting tube (310) is provided with a retaining ring (312) for contacting the linkage ring (430); the surface of the post (330) is provided with a plurality of connecting holes (331); the valve sleeve (320) is fixed to one end of the connecting spring (311), and the valve sleeve (320) slides on the surface of the post (330) and covers the outer periphery of the connecting holes (331).

2. The air compressor that can be quickly installed according to claim 1, characterized in that, One end of the fixed connection port (200) is provided with a joint that is adapted to the end of the valve sleeve head (320), and one end of the core valve shaft (210) is provided with a groove that is adapted to the end of the column head (330).

3. The air compressor that can be quickly installed according to claim 1, characterized in that, The core valve shaft (210) is arranged at the axis of the fixed connection port (200), and the outer periphery of the core valve shaft (210) is provided with a sealing ring that abuts against the inner side of the fixed connection port (200); the inner cavity of the fixed connection port (200) is tapered and gradually expands away from the locking member (400) to form an airflow gap on the outer periphery of the core valve shaft (210).

4. The air compressor that can be quickly installed according to claim 1, characterized in that, The number of linkage rings (430) is several and they are arranged one-to-one with the curved protrusions (421); the linkage rings (430) are radially rotatably mounted on the surface of the flange seat (410), and the curved protrusions (421) slide against one side of the linkage rings (430).

5. The air compressor that can be quickly installed according to claim 1, characterized in that, The surface of the convex (421) is arc-shaped, and one end of the convex (421) gradually approaches the center of the connecting ring (420).

6. The air compressor that can be quickly installed according to claim 1, characterized in that, The valve sleeve (320) is slidably sleeved on the surface of the column head (330), and the outer periphery of the column head (330) is provided with sealing rings that abut against the inner side of the valve sleeve (320) and are located on both sides of the connecting hole (331) for sealing the connecting hole (331) on the surface of the column head (330).

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