A fluid hose quick disconnect and sealed connection assembly

Abstract

The application discloses a fluid hose anti-dropping quick connector and a sealed connection assembly, wherein the quick connector comprises a positioning sleeve comprising a mounting groove; a protective sleeve, one end of which is sleeved outside the mounting groove, and the protective sleeve is provided with a guide cavity with a tapered inner wall; the other end of the protective sleeve is slidably sleeved with an assembly ring for mounting a sealing ring; a clamping sleeve is clamped between the end surface of the guide cavity and the positioning sleeve, and the clamping sleeve comprises a plurality of obliquely arranged elastic clamping teeth; a push ring, one end of the push ring is slidably sleeved in the inner hole of the positioning sleeve, and the push ring is in abutment with the plurality of elastic clamping teeth. The application can realize quick assembly of a docking equipment port, accurately push the sealing ring to a predetermined position, and realize anti-dropping effect of the hose by one-way clamping of the plurality of elastic clamping teeth when the hose is installed, and realize sealed connection of the sealing ring; when the hose is disassembled, the hose can be disassembled by only pressing the push ring to deform the clamping teeth, and the application does not need external tools, and can greatly improve operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of fluid sealing and docking fittings, and in particular to a fluid hose anti-disconnection quick connector and sealing connection assembly. Background Technology

[0002] In the field of fluid transmission such as water and gas, quick couplings are the core connecting components between hoses and equipment / pipelines, widely used in industrial manufacturing, daily services, and electromechanical equipment. Their ease of installation and disassembly, as well as connection reliability, directly affect transmission efficiency, maintenance costs, and operational safety. Existing common quick couplings mainly fix hoses by snap-fit ​​or bolt connection, such as CN111795247A (open hose clamp locking quick coupling) and CN223806444U (anti-loosening double nut compression quick coupling). These couplings all require external tools to unlock, resulting in poor operational convenience.

[0003] Existing technologies also include tool-free manual quick connectors, such as those that use multiple sets of springs and steel balls to lock and unlock. However, such products have complex structures and high costs. Furthermore, in humid, dusty, and corrosive environments commonly encountered in water and air transmission, the springs are prone to fatigue failure and the steel balls are prone to rust and jamming, resulting in unreliable locking and unlocking failures. This poses safety hazards such as fluid leakage and hose detachment, making it difficult to promote and apply them in mainstream scenarios.

[0004] In existing technologies, the connection locations of water and gas transmission connectors are usually in confined spaces, densely packed with equipment, and in harsh environments. Both types of connectors suffer from problems such as difficulty in using tools, low operating efficiency, or structural defects that make them insufficient in safety and durability, thus failing to meet the requirements for long-term stable use. Existing technologies lack a quick connector that is low in cost, simple in structure, safe and reliable, and allows for easy assembly and disassembly of hoses without tools.

[0005] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0006] To address the issues that existing connectors for water and gas transmission require tools or have structural defects that result in insufficient safety, and are difficult to use in confined spaces, densely packed equipment, and harsh environments, which require low cost, simple structure, safety, reliability, and easy assembly and disassembly without tools, this invention provides a fluid hose anti-detachment quick connector and sealing connection assembly.

[0007] This invention is achieved through the following technical solution: A quick-connect coupling for preventing fluid hose disconnection, wherein the quick-connect coupling includes: The positioning sleeve includes a mounting groove located on the outer side at one end; The protective sleeve has one end that is fitted onto the outside of the mounting groove. The protective sleeve has a guide cavity that is positioned relative to the positioning sleeve. The inner wall of the guide cavity is tapered and inclined. The other end has an assembly ring that is slidably fitted onto the outside. A sealing ring is detachably fitted into the assembly ring. The ferrule is clamped and fixed between the end faces of the guide cavity and the positioning sleeve. The ferrule includes a plurality of elastic teeth arranged circumferentially and at intervals along the inner hole. The plurality of elastic teeth are inclined toward the guide cavity for unidirectional clamping of the hose. The push ring has one end slidably fitted into the inner hole of the positioning sleeve, and the push ring abuts against a plurality of the elastic locking teeth.

[0008] The fluid hose anti-detachment quick connector, wherein a limiting part is provided inside the assembly ring, and a stepped part is provided on the outer circumference of the sealing ring. The limiting part engages with the stepped part to make the sealing ring coaxial with the protective sleeve, and the sealing ring partially protrudes from the assembly ring. When the assembly ring is pressed by an external force, the assembly ring separates from the sealing ring and slides toward the positioning sleeve; The sealing ring protrudes 0.2 mm from the protective sleeve.

[0009] The fluid hose anti-dislodgement quick connector, wherein the inner hole of the protective sleeve coaxially connects the guide cavity and the inner hole of the sealing ring, and the diameter of the inner hole of the protective sleeve is adapted to the inner hole diameter of the sealing ring and the inner hole diameter of the push ring.

[0010] The fluid hose anti-detachment quick connector, wherein a plurality of hooks are uniformly arranged on the outer side of the positioning sleeve along the axial direction of the positioning sleeve, the plurality of hooks are integrally formed with the positioning sleeve, and the hooks are continuously arranged around the outer side wall of the protective sleeve.

[0011] The fluid hose anti-detachment quick connector, wherein the hook includes a mounting surface inclined at a predetermined angle and a hooking surface axially arranged along the protective sleeve, and adjacent hooks are smoothly rounded off. The predetermined angle is 60 degrees.

[0012] The fluid hose anti-dislodgement quick connector, wherein the positioning sleeve includes a limiting groove located on the inner side of one end and a guide groove located on the inner side of the other end, the limiting groove and the guide groove being connected through the inner hole of the positioning sleeve; The push ring includes a retaining ring at one end and a push handle at the other end. The retaining ring engages with the limiting groove for positioning. The push handle is partially slidably sleeved in the guide groove. When the push handle slides into the guide groove, the push ring presses down and causes the elastic retaining teeth to deform.

[0013] The fluid hose anti-detachment quick connector is provided with a first guide portion on the retaining ring, and a second guide portion is provided at the corresponding position of the guide groove and the inner hole of the positioning sleeve. The first guide portion and the second guide portion are inclined at the same angle.

[0014] The fluid hose anti-dislodgement quick connector is provided in which the push ring is provided with a plurality of clearance grooves, and the plurality of clearance grooves are provided to pass through the inner and outer sides of the retaining ring along the axial direction of the push ring.

[0015] The fluid hose anti-detachment quick connector, wherein the push ring and the protective sleeve are components made of polyhexamethylene adipamide; The positioning ring is a component made of brass metal. The sealing ring is a component made of EPDM rubber. The ferrule is a component made of stainless steel.

[0016] A sealing connection assembly, wherein the sealing connection assembly includes the above-mentioned fluid hose anti-dislodgement quick connector, the fluid hose anti-dislodgement quick connector comprising: The positioning sleeve includes a mounting groove located on the outer side at one end; The protective sleeve has one end that is fitted onto the outside of the mounting groove. The protective sleeve has a guide cavity that is positioned relative to the positioning sleeve. The inner wall of the guide cavity is tapered and inclined. The other end has an assembly ring that is slidably fitted onto the outside. A sealing ring is detachably fitted into the assembly ring. The ferrule is clamped and fixed between the end faces of the guide cavity and the positioning sleeve. The ferrule includes a plurality of elastic teeth arranged circumferentially and at intervals along the inner hole. The plurality of elastic teeth are inclined toward the guide cavity for unidirectional clamping of the hose. A push ring, one end of which is slidably fitted into the inner hole of the positioning sleeve, and the push ring abuts against a plurality of the elastic locking teeth; The sealing connection assembly further includes: The connection port includes a first receiving cavity, a second receiving cavity, and a third receiving cavity with a stepped cross-section and communicating with a guide hole. The diameter of the first receiving cavity is adapted to the diameter of the hose; the diameter of the second receiving cavity is adapted to the diameter of the sealing ring; and the diameter of the third receiving cavity is adapted to the diameter of the positioning sleeve.

[0017] The beneficial effects of this invention are as follows: This invention, through the combination of a positioning sleeve, protective sleeve, clamping sleeve, and push ring, enables rapid assembly and docking with equipment ports. It can accurately push the sealing ring to the predetermined position. During hose installation, several elastic teeth in the clamping sleeve unidirectionally engage the hose to prevent detachment, and the elastic wrapping of the sealing ring on the hose achieves a sealed connection. When disassembling the hose, simply pressing the push ring to deform the teeth releases the engagement and removes the hose. This invention requires no external tools, significantly improving operational efficiency, effectively reducing the workload of operators, and saving maintenance and replacement time. Attached Figure Description

[0018] Figure 1 This is a structurally disassembled schematic diagram of the fluid hose anti-detachment quick connector of the present invention; Figure 2 This is a cross-sectional schematic diagram of the combined state of the fluid hose anti-detachment quick connector of the present invention; Figure 3 This is a schematic diagram showing the completed assembly of the fluid hose anti-detachment quick connector of the present invention; Figure 4 This is a structural split cross-sectional view of the sealing connection component of the present invention.

[0019] exist Figures 1 to 4 In the middle: 100, positioning sleeve; 110, mounting groove; 120, hook ring; 121, mounting surface; 122, hooking surface; 130, limiting groove; 140, guide groove; 141, second guide part; 200, protective sleeve; 210, guide cavity; 220, assembly ring; 221, limiting part; 300, sealing ring; 310, stepped part; 400, ferrule; 410, elastic retaining tooth; 500, push ring; 510, retaining ring; 511, clearance groove; 512, first guide part; 520, push handle; 600, hose; 700, connecting port; 710, first receiving cavity; 720, second receiving cavity; 730, third receiving cavity; 740, guide hole. Detailed Implementation

[0020] To make the objectives, technical solutions, and effects of this invention clearer and more explicit, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0021] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0022] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0023] In existing technologies, the connection locations of water and gas transmission connectors are usually in confined spaces, densely packed with equipment, and in harsh environments. Both types of connectors suffer from problems such as difficulty in using tools, low operating efficiency, or structural defects that make them insufficient in safety and durability, thus failing to meet the requirements for long-term stable use. Existing technologies lack a quick connector that is low in cost, simple in structure, safe and reliable, and allows for easy assembly and disassembly of hoses without tools.

[0024] To address the aforementioned problems in the prior art, this invention provides a quick-connect coupling for preventing the fluid hose from detaching, such as... Figure 1 and Figure 2 As shown, the fluid hose anti-detachment quick connector includes: a positioning sleeve 100, including a mounting groove 110 located on the outer side of one end; a protective sleeve 200, one end of which is snapped onto the outer side of the mounting groove 110, and a guide cavity 210 is provided inside the protective sleeve 200 relative to the positioning sleeve 100, the inner wall of the guide cavity 210 being tapered and inclined; an assembly ring 220 is slidably sleeved on the outer side of the other end, and a sealing ring 300 is detachably sleeved inside the assembly ring 220; a clamping sleeve 400, which is clamped and fixed between the end faces of the guide cavity 210 and the positioning sleeve 100, the clamping sleeve 400 including a plurality of elastic teeth 410 arranged circumferentially and at intervals along the inner hole, the plurality of elastic teeth 410 being inclined toward the guide cavity 210 for unidirectional clamping of the hose 600; and a push ring 500, one end of which is slidably sleeved in the inner hole of the positioning sleeve 100, the push ring 500 abutting against the plurality of elastic teeth 410.

[0025] This invention enables rapid assembly and docking of equipment ports through the combination of positioning sleeve 100, protective sleeve 200, clamping sleeve 400, and push ring 500. It accurately pushes the sealing ring 300 to the predetermined position. When installing the hose 600, several elastic teeth 410 in the clamping sleeve 400 unidirectionally engage the hose 600 to prevent detachment. The elastic wrapping of the sealing ring 300 around the hose 600 achieves a sealed connection. When disassembling the hose 600, simply pressing the push ring 500 deforms the teeth to release the engagement and remove the hose 600. This invention eliminates the need for external tools, significantly improving operational efficiency, effectively reducing the workload of operators, and saving maintenance and replacement time.

[0026] In the above embodiments, such as Figure 1 and Figure 2 As shown, the main body of the fluid hose anti-dislodgement quick connector of the present invention consists of a positioning sleeve 100, a protective sleeve 200, a clamping sleeve 400, and a push ring 500. The positioning sleeve 100 is made of brass metal material. Brass material has good corrosion resistance, mechanical strength and processing performance, and is suitable for humid and corrosive environments for water and air transmission. At the same time, it is inexpensive and easy to mass-produce. The positioning sleeve 100 is cylindrical in shape. The main difference from the prior art is that an annular mounting groove 110 is integrally formed on the outer side of one end. The mounting groove 110 is used for combined installation with the protective sleeve 200.

[0027] The protective sleeve 200 is made of polyhexamethylene adipamide (nylon 66), which has excellent wear resistance, impact resistance, and corrosion resistance. It is also lightweight and low-cost, effectively protecting internal components such as the retainer 400 and push ring 500 from external dust and impurities. The protective sleeve 200 is cylindrical in shape, with one end engaging and fixed to the mounting groove 110 of the positioning sleeve 100. The protective sleeve 200 has a guide cavity 210 inside, with the inner wall of the guide cavity 210 being tapered and inclined to guide the inserted hose 600. An assembly ring 220 is slidably fitted on the outer side of the other end. The assembly ring 220 is used to temporarily position the sealing ring 300, allowing the hose 600 to be smoothly inserted into the inner hole of the sealing ring 300, and accurately pushing the sealing ring 300 to the predetermined position when connected to the equipment port, thus avoiding installation deviations.

[0028] The ferrule 400 is made of stainless steel, which has excellent corrosion resistance, elasticity and wear resistance. It can prevent rusting and jamming in humid and dusty environments, ensuring long-term reliability. The ferrule 400 is ring-shaped and is clamped and fixed between the end face of the positioning sleeve 100 and the guide cavity 210 inside the protective sleeve 200. Several elastic teeth 410 are arranged at intervals on its inner circumference. The elastic teeth 410 are inclined towards the guide cavity 210. The elastic teeth 410 and the ferrule 400 are made by an integral molding process, which has good elastic deformation ability and can realize the one-way clamping and anti-dislodgement function of the hose 600.

[0029] The push ring 500 and the protective sleeve 200 are made of the same material, polyhexamethylene adipamide (nylon 66), which has good sliding performance. The push ring 500 is cylindrical in shape, with one end slidingly fitted into the inner hole of the positioning sleeve 100. The end face of this end abuts against the elastic teeth 410 of the clamping sleeve 400, and can slide smoothly along the axial direction of the positioning sleeve 100. In actual use, by pressing the push ring 500 to deform the elastic teeth 410, the one-way locking of several elastic teeth 410 on the hose 600 can be released, so that the hose 600 can be pulled out of the fluid hose anti-disconnect quick connector. The hose 600 can be replaced without the need for any external tools, making the operation convenient and efficient.

[0030] The aforementioned sealing ring 300 is made of EPDM rubber, which has excellent weather resistance, corrosion resistance, and sealing performance, making it suitable for sealing requirements of water and gas transmission. In this embodiment, since the assembly ring 220 is slidably connected to the protective sleeve 200, the position of the sealing ring 300 can be fixed during the installation stage to correspond with the equipment port. When docked to the predetermined position, the assembly ring 220 moves under pressure, allowing the sealing ring 300 to be independently installed at the predetermined position of the equipment port, achieving a precise installation effect.

[0031] In the above embodiments, the fluid hose anti-detachment quick connector of the present invention, through the combination of the above components, is installed in the corresponding equipment port. During the process, the sealing ring 300 can be positioned and installed to ensure the tightness of the connection between the equipment port and the subsequent hose 600 installation. The hose 600 is then inserted along the inner hole of the push ring 500, and after passing through the positioning sleeve 100, the clamping sleeve 400, and the protective sleeve 200 in sequence, it finally passes through the inner hole of the sealing ring 300 and forms a sleeve with the sealing ring 300. At this time, due to the engaging action of the elastic locking teeth 410 on the clamping sleeve 400, the hose 600 can only be inserted and cannot be pulled out, thus achieving the anti-detachment effect. Furthermore, after fluid is poured into the hose 600, the hose 600... The circumference is compressed by fluid pressure, forming a tight and firm contact and connection with the sealing ring 300, thus enabling quick and sealed installation of the hose 600. When the hose 600 needs to be disassembled and replaced, the push ring 500 can be pressed, causing the end face of the push ring 500 to press against several elastic locking teeth 410, thereby releasing the locking of the elastic locking teeth 410 onto the hose 600. At this time, the hose 600 can be easily pulled out for replacement. It can be seen that the fluid hose anti-detachment quick connector provided by the present invention can quickly install and disassemble the hose 600 without tools. In the face of installation environments with limited space, dense equipment and harsh conditions, it can achieve effective quick installation and disassembly, improving operation efficiency.

[0032] Based on the above embodiments, in one possible implementation of the present invention, such as Figure 1 and Figure 2As shown, to ensure the stability of the sealing ring 300 during temporary installation within the sealing ring 300, in this embodiment, a limiting part 221 is provided inside the assembly ring 220. The limiting part 221 is an annular protrusion integrally formed on the inner sidewall of the assembly ring 220. Correspondingly, a stepped part 310 is provided on the outer circumference of the sealing ring 300. The stepped part 310 is an annular groove that matches the size of the limiting part 221. The limiting part 221 engages with the stepped part 310, so that the sealing ring 300 and the protective sleeve 200 are coaxially arranged, avoiding sealing failure caused by assembly misalignment of the sealing ring 300.

[0033] Furthermore, in actual installation, the sealing ring 300 protrudes from the assembly ring 220. Specifically, the end of the sealing ring 300 extends beyond the end face of the assembly ring 220, with a protrusion dimension of 0.2mm. This dimension ensures that when the connector is assembled with the equipment connection port 700, the sealing ring 300 can preferentially combine with the predetermined part of the connection port 700, achieving reliable sealing while also guiding the installation.

[0034] When the assembly ring 220 is pressed by an external force, the assembly ring 220 separates from the sealing ring 300 and slides toward the positioning sleeve 100. Specifically, the assembly ring 220 and the protective sleeve 200 are elastically fitted. When the locking part of the limiting part 221 on the assembly ring 220 and the step part 310 on the sealing ring 300 are misaligned due to force, the assembly ring 220 can smoothly slide along the outer side wall of the protective sleeve 200 to the outer side of the main body of the protective sleeve 200 until the end face of the assembly ring 220 corresponds to the end of the protective sleeve 200. At this time, the sealing ring 300 is released from the limiting of the assembly ring 220 and pushed to the predetermined sealing position, while tightly fitting with the inner wall of the connection port 700 to achieve a sealed connection.

[0035] Furthermore, in actual installation, the inner hole of the protective sleeve 200 is coaxially connected to the inner hole of the guide cavity 210 and the inner hole of the sealing ring 300. The diameter of the inner hole of the protective sleeve 200 is adapted to the inner hole diameter of the sealing ring 300 and the inner hole diameter of the push ring 500. Specifically, the diameter of all three is adapted to the outer diameter of the hose 600 to be connected. This size setting can ensure that the hose 600 passes smoothly through the inner hole of each component, while avoiding excessive gaps that could lead to fluid leakage or the hose 600 shaking.

[0036] In another possible embodiment of the invention, such as Figure 1 and Figure 2As shown, to ensure the fluid hose anti-detachment quick connector can be sealed and fixedly installed inside the equipment port during installation, in this embodiment, a plurality of hooks 120 are evenly arranged along the axial direction of the positioning sleeve 100 on the outer side of the positioning sleeve 100. These hooks 120 are integrally formed with the positioning sleeve 100, ensuring the structural strength of the hooks 120 and preventing breakage. The hooks 120 are continuously arranged around the outer wall of the protective sleeve 200. In this embodiment, the number of hooks 120 is set to three, evenly spaced. During actual installation, they can be installed with the inner wall of the equipment port through an interference fit. The structure of multiple hooks 120 forms a multi-layer sealing structure, preventing fluid leakage while also increasing friction for a stable installation effect.

[0037] Specifically, such as Figure 2 As shown, the hook 120 includes a mounting surface 121 inclined at a predetermined angle and a hooking surface 122 axially arranged along the protective sleeve 200. Adjacent hooks 120 are smoothly rounded and transitioned. The predetermined angle is set to 60 degrees. The inclined direction of the mounting surface 121 faces the protective sleeve 200. This angle facilitates the quick insertion of the connector into the equipment connection port 700 and reduces assembly resistance. The hooking surface 122 is a plane perpendicular to the axial direction of the positioning sleeve 100. When the connector is inserted into the equipment connection port 700, the hooking surface 122 engages with the inner wall of the equipment port, thereby fixing the positioning sleeve 100 to the connection port 700 and preventing the connector from coming off completely during use.

[0038] In another possible embodiment of the invention, such as Figure 1 and Figure 2 As shown, in order to unlock the engagement between the sleeve 400 and the hose 600 by pushing the push ring 500 and to ensure the installation stability of the push ring 500, in this embodiment, the positioning sleeve 100 includes a limiting groove 130 located on the inner side of one end and a guide groove 140 located on the inner side of the other end. The limiting groove 130 and the guide groove 140 are connected through the inner hole of the positioning sleeve 100. The limiting groove 130 is an annular groove located on the positioning sleeve 100 near the sleeve 400, and the guide groove 140 is a cylindrical groove located on the positioning sleeve 100 away from the sleeve 400. The diameter of the limiting groove 130 is smaller than the diameter of the guide groove 140, forming a stepped structure.

[0039] Correspondingly, the push ring 500 includes a retaining ring 510 at one end and a push handle 520 at the other end. The retaining ring 510 and the push handle 520 are integrally formed. The outer diameter of the retaining ring 510 is adapted to the diameter of the limiting groove 130. The retaining ring 510 is engaged in the limiting groove 130 to achieve axial limiting of the push ring 500 and prevent the push ring 500 from coming out of the inner hole of the positioning sleeve 100. The outer diameter of the push handle 520 is adapted to the diameter of the guide groove 140, so that the push handle 520 is partially slidably sleeved in the guide groove 140. The guide groove 140 provides guidance for the sliding of the push handle 520, ensuring that the push ring 500 slides smoothly along the axial direction of the positioning sleeve 100, while also acting evenly on the several elastic retaining teeth 410 on the retaining sleeve 400. When the push handle 520 slides into the guide groove 140, the push ring 500 presses several elastic teeth 410, causing the elastic teeth 410 to elastically deform in the direction of the conical surface of the guide cavity 210. The ends of the elastic teeth 410 separate from the outer wall of the hose 600, releasing the engagement of the hose 600. At this time, the hose 600 can be easily removed.

[0040] Furthermore, to facilitate the combination of the push ring 500 and the positioning sleeve 100, such as... Figure 2 As shown, in this embodiment, a first guide portion 512 is provided on the retaining ring 510, and a second guide portion 141 is provided at the corresponding position of the guide groove 140 and the inner hole of the positioning sleeve 100. The first guide portion 512 and the second guide portion 141 are inclined at the same angle. During assembly, the positioning sleeve 100 and the protective sleeve 200 are pre-combined, and then the push ring 500 is inserted into the guide groove 140 of the positioning sleeve 100 and pressure is applied along the guide groove 140. During the process, due to the relative guiding effect of the first guide portion 512 and the second guide portion 141, the retaining ring 510 is deformed by the component force and finally enters the limiting groove 130 along the inner hole of the positioning sleeve 100, forming a locking and anti-disengagement effect. At this time, due to the elastic reset of the retaining ring 510, it forms a pressure against the inner side wall of the positioning sleeve 100 and forms an inner and outer clamp with the protective sleeve 200 of the fitting installation groove 110. Therefore, the effect of stably installing the positioning sleeve 100, the protective sleeve 200 and the push ring 500 is also achieved.

[0041] To facilitate the deformation of the retaining ring 510 under stress, such as Figure 1 As shown, a plurality of clearance grooves 511 are provided on the push ring 500. The clearance grooves 511 are provided along the axial direction of the push ring 500 and pass through the inner and outer sides of the retaining ring 510. The clearance grooves 511 provide clearance and provide clearance space for the deformation of the retaining ring 510, which can ensure smooth deformation of the retaining ring 510 and thus improve the convenience of the installation and assembly process.

[0042] Based on the above embodiments, the actual usage process of the fluid hose anti-detachment quick connector of the present invention is as follows: When assembling the quick-connect coupling for the fluid hose anti-dislodgement, firstly, insert the retaining sleeve 400 into the guide cavity 210 of the protective sleeve 200, and then fit one end of the protective sleeve 200 corresponding to the guide cavity 210 onto the mounting groove 110 on the outside of the positioning sleeve 100 to form a snap-fit; then, insert one end of the retaining ring 510 of the push ring 500 into the guide groove 140 of the positioning sleeve 100, and deform the retaining ring 510 through the cooperation of the first guide part 512 and the second guide part 141, and finally snap it into the limiting groove 130, thus completing the assembly of the push ring 500 and the positioning sleeve 100. At this time, the supporting effect of the push ring 500 further enhances the combination effect of the protective sleeve 200 and the positioning sleeve 100; finally, assemble the sealing ring 300 into the assembly ring 220 at the other end of the protective sleeve 200 to form a snap-fit ​​connection.

[0043] The assembled fluid hose anti-detachment quick connector is installed in the equipment port. Under the action of the adapter structure in the equipment port, the assembly ring 220 is pressed to move the assembly ring 220 and separate it from the sealing ring 300. During the further pushing installation process, the sealing ring 300 is installed at the predetermined position of the equipment port. At this time, due to the combined action of the hook ring 120 on the outside of the positioning sleeve 100 and the equipment port, the fluid hose anti-detachment quick connector is fixedly installed inside the equipment port.

[0044] When assembling the hose 600, first pass one end of the hose 600 through the inner hole of the push ring 500, the inner hole of the positioning sleeve 100, the inner hole of the clamp 400, the inner hole of the protective sleeve 200, and the inner hole of the sealing ring 300 in sequence, until the end of the hose 600 extends into the predetermined position of the connection port 700. At this time, the elastic clamping teeth 410 of the clamp 400 fit against the outer wall of the hose 600, realizing the anti-detachment positioning and sealing connection of the hose 600. The entire assembly process does not require the use of external tools, is easy to operate, and is suitable for assembly scenarios with limited space.

[0045] When disassembling the hose 600, simply press the push handle 520 of the push ring 500 by hand, causing the push handle 520 to slide along the guide groove 140 into the positioning sleeve 100. The end face of the push ring 500 presses the elastic retaining teeth 410, causing the elastic retaining teeth 410 to deform elastically and release the hose 600 from the quick connector. Then, pull the hose 600 outward to remove it from the quick connector. The disassembly process does not require external tools, is highly efficient, and can significantly reduce the workload of operators and save maintenance and replacement time.

[0046] Based on the above embodiments, the present invention also provides a sealing connection assembly, such as... Figure 3 and Figure 4 As shown, the sealing connection assembly includes the fluid hose anti-disconnection quick connector in the above embodiment, which specifically includes: The positioning sleeve 100 includes a mounting groove 110 located on the outer side of one end; a protective sleeve 200, one end of which is fitted onto the outer side of the mounting groove 110, and a guide cavity 210 is provided inside the protective sleeve 200 relative to the positioning sleeve 100, the inner wall of the guide cavity 210 being tapered and inclined; an assembly ring 220 is slidably fitted on the outer side of the other end, and a sealing ring 300 is detachably fitted inside the assembly ring 220; a clamping sleeve 400 is clamped and fixed between the end faces of the guide cavity 210 and the positioning sleeve 100, the clamping sleeve 400 including a plurality of elastic teeth 410 arranged circumferentially and at intervals along the inner hole, the plurality of elastic teeth 410 being inclined toward the guide cavity 210 for unidirectional clamping of the hose 600; and a push ring 500, one end of which is slidably fitted into the inner hole of the positioning sleeve 100, the push ring 500 abutting against the plurality of elastic teeth 410.

[0047] Furthermore, such as Figure 4 As shown, the sealing connection assembly also includes a connection port 700 (i.e., the device port in the above embodiment). The connection port 700 includes a first receiving cavity 710, a second receiving cavity 720, and a third receiving cavity 730, which are arranged in a stepped cross-section and communicate with the guide hole 740. The diameter of the first receiving cavity 710 is adapted to the diameter of the hose 600; the diameter of the second receiving cavity 720 is adapted to the diameter of the sealing ring 300; and the diameter of the third receiving cavity 730 is adapted to the diameter of the positioning sleeve 100.

[0048] Based on the above-mentioned process of using the fluid hose anti-detachment quick connector, when combining the fluid hose anti-detachment quick connector with the connection port 700, align the end of the protective sleeve 200 of the quick connector with the third receiving cavity 730 of the connection port 700, and push the quick connector forcefully so that the protective sleeve 200, positioning sleeve 100 and other structures extend into the third receiving cavity 730. During the process, the stepped end face between the second receiving cavity 720 and the third receiving cavity 730 forms an abutment with the assembly ring 220. As the quick connector further enters the third receiving cavity 730, the assembly ring 220 is pressed towards the protective sleeve 200 and separates from the sealing ring 300. At the same time, the protective sleeve 200 presses the sealing ring 300 into the second receiving cavity 720 and finally installs it completely. At this time, the hook ring 120 on the outside of the positioning sleeve 100 engages with the inner wall of the third receiving cavity 730, thus completing the installation of the fluid hose anti-detachment quick connector. When installing the hose 600, first pass one end of the hose 600 through the inner hole of the push ring 500, the inner hole of the positioning sleeve 100, the inner hole of the clamping sleeve 400, the inner hole of the protective sleeve 200, and the inner hole of the sealing ring 300 in sequence, until the end of the hose 600 extends into the first receiving cavity 710 of the connection port 700. At this time, the elastic clamping teeth 410 of the clamping sleeve 400 fit against the outer wall of the hose 600, realizing the anti-detachment positioning and sealing connection of the hose 600. The entire assembly process does not require the use of external tools and is easy to operate.

[0049] When disassembling the hose 600, simply press the push handle 520 of the push ring 500 by hand, causing the push handle 520 to slide along the guide groove 140 into the positioning sleeve 100. The end face of the push ring 500 presses the elastic retaining teeth 410, causing the elastic retaining teeth 410 to deform elastically and release the hose 600 from the quick connector. Then, pull the hose 600 outward to remove it from the quick connector. The disassembly process does not require external tools, is highly efficient, and can significantly reduce the workload of operators and save maintenance and replacement time.

[0050] In summary, the present invention provides a quick-connect coupling for preventing the fluid hose from detaching and a sealing connection assembly. The quick-connect coupling includes: a positioning sleeve with a mounting groove located on the outer side of one end; a protective sleeve, one end of which is fitted onto the outer side of the mounting groove, the protective sleeve having a guide cavity relative to the positioning sleeve, the inner wall of the guide cavity being tapered and inclined; an assembly ring slidably fitted onto the outer side of the other end, the assembly ring having a detachably fitted sealing ring; a clamping sleeve, clamped and fixed between the end faces of the guide cavity and the positioning sleeve, the clamping sleeve including a plurality of elastic teeth spaced circumferentially along the inner hole, the elastic teeth being inclined toward the guide cavity for unidirectional clamping of the hose; and a push ring, one end of which is slidably fitted into the inner hole of the positioning sleeve, the push ring abutting against the plurality of elastic teeth.

[0051] This invention enables rapid assembly and docking with equipment ports through the combination of a positioning sleeve, a protective sleeve, a clamping sleeve, and a push ring. It accurately pushes the sealing ring to the predetermined position. During hose installation, several elastic teeth in the clamping sleeve unidirectionally engage the hose to prevent detachment, and the elastic wrapping of the sealing ring on the hose ensures a sealed connection. When disassembling the hose, simply pressing the push ring deforms the clamping teeth to release the hose and remove it. This invention requires no external tools, significantly improving operational efficiency, effectively reducing operator workload, and saving maintenance and replacement time.

[0052] It should be understood that the application of the present invention is not limited to the examples above. Those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A quick-connect coupling for preventing the detachment of a fluid hose, characterized in that, The fluid hose anti-dislodgement quick connector includes: The positioning sleeve includes a mounting groove located on the outer side at one end; The protective sleeve has one end that is fitted onto the outside of the mounting groove. The protective sleeve has a guide cavity that is positioned relative to the positioning sleeve. The inner wall of the guide cavity is tapered and inclined. The other end has an assembly ring that is slidably fitted onto the outside. A sealing ring is detachably fitted into the assembly ring. The ferrule is clamped and fixed between the end faces of the guide cavity and the positioning sleeve. The ferrule includes a plurality of elastic teeth arranged circumferentially and at intervals along the inner hole. The plurality of elastic teeth are inclined toward the guide cavity for unidirectional clamping of the hose. The push ring has one end slidably fitted into the inner hole of the positioning sleeve, and the push ring abuts against a plurality of the elastic locking teeth.

2. The fluid hose anti-disconnection quick connector according to claim 1, characterized in that, The assembly ring is provided with a limiting part, and the outer circumference of the sealing ring is provided with a stepped part. The limiting part engages with the stepped part to make the sealing ring coaxial with the protective sleeve. The sealing ring protrudes from the assembly ring. When the assembly ring is pressed by an external force, the assembly ring separates from the sealing ring and slides toward the positioning sleeve; The sealing ring protrudes 0.2 mm from the protective sleeve.

3. The fluid hose anti-disconnection quick connector according to claim 2, characterized in that, The inner hole of the protective sleeve is coaxially connected to the guide cavity and the inner hole of the sealing ring. The diameter of the inner hole of the protective sleeve is adapted to the inner diameter of the sealing ring and the inner diameter of the push ring.

4. The fluid hose anti-disconnect quick connector according to claim 1, characterized in that, The outer side of the positioning sleeve is provided with a plurality of hooks evenly arranged along the axial direction of the positioning sleeve. The plurality of hooks are integrally formed with the positioning sleeve and are continuously arranged around the outer side wall of the protective sleeve.

5. The fluid hose anti-disconnection quick coupling according to claim 4, characterized in that, The hook and loop include a mounting surface that is inclined at a predetermined angle and a hooking surface that is axially arranged along the protective sleeve, with a smooth rounded transition between adjacent hooks and loops; The predetermined angle is 60 degrees.

6. The fluid hose anti-disconnect quick connector according to claim 1, characterized in that, The positioning sleeve includes a limiting groove located on the inner side of one end and a guide groove located on the inner side of the other end, the limiting groove and the guide groove being connected through the inner hole of the positioning sleeve; The push ring includes a retaining ring at one end and a push handle at the other end. The retaining ring engages with the limiting groove for positioning. The push handle is partially slidably sleeved in the guide groove. When the push handle slides into the guide groove, the push ring presses down and causes the elastic retaining teeth to deform.

7. The fluid hose anti-disconnection quick coupling according to claim 6, characterized in that, The retaining ring is provided with a first guide portion, and the guide groove and the inner hole of the positioning sleeve are provided with a second guide portion at the corresponding positions. The first guide portion and the second guide portion are inclined at the same angle.

8. The fluid hose anti-disconnect quick coupling according to claim 7, characterized in that, The push ring is provided with a plurality of clearance grooves, which are arranged along the axial direction of the push ring and pass through the inner and outer sides of the retaining ring.

9. The fluid hose anti-disconnect quick coupling according to claim 1, characterized in that, The push ring and the protective sleeve are components made of polyhexamethylene adipamide. The positioning ring is a component made of brass metal. The sealing ring is a component made of EPDM rubber. The ferrule is a component made of stainless steel.

10. A sealing connection assembly, characterized in that, The sealing connection assembly includes the fluid hose anti-detachment quick connector as described in any one of claims 1-9, wherein the fluid hose anti-detachment quick connector comprises: The positioning sleeve includes a mounting groove located on the outer side at one end; The protective sleeve has one end that is fitted onto the outside of the mounting groove. The protective sleeve has a guide cavity that is positioned relative to the positioning sleeve. The inner wall of the guide cavity is tapered and inclined. The other end has an assembly ring that is slidably fitted onto the outside. A sealing ring is detachably fitted into the assembly ring. The ferrule is clamped and fixed between the end faces of the guide cavity and the positioning sleeve. The ferrule includes a plurality of elastic teeth arranged circumferentially and at intervals along the inner hole. The plurality of elastic teeth are inclined toward the guide cavity for unidirectional clamping of the hose. A push ring, one end of which is slidably fitted into the inner hole of the positioning sleeve, and the push ring abuts against a plurality of the elastic locking teeth; The sealing connection assembly further includes: The connection port includes a first receiving cavity, a second receiving cavity, and a third receiving cavity with a stepped cross-section and communicating with a guide hole. The diameter of the first receiving cavity is adapted to the diameter of the hose; the diameter of the second receiving cavity is adapted to the diameter of the sealing ring; and the diameter of the third receiving cavity is adapted to the diameter of the positioning sleeve.

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