Quick connect brake hose

Abstract

The utility model relates to the technical field of automobile brake system accessories, disclose a quick plug connector formula brake hose, including connecting hose, joint, connecting seat and connecting assembly and sealing assembly, connecting hose is connected in the joint, and the connecting seat is inserted in the joint inside. The outer wall of connecting seat is fixed with sliding block, and the inner wall of joint is provided with L shaped sliding slot, and sliding block slides along L shaped sliding slot. The inner wall of L shaped sliding slot end is fixed with the abutment plate through screw, and the abutment plate bottom abuts with spring, and the spring bottom end is connected with triangular clamping block, when connecting seat is screwed into place, sliding block extrudes triangular clamping block and is clamped into locking under the action of spring, realizes mechanical lock. The utility model is driven through the cooperation of sliding block and spring drive's triangular clamping block, solved the problem that traditional thread connection dismounts complicated and easy to loosen, realized quick plugging and stable self -locking, and the cooperation dual seal structure effectively guarantees the sealing property of high pressure oil circuit, improved the safety reliability of brake system.

Description

Technical Field

[0001] This utility model relates to automotive brake system accessories, and more particularly to a quick-connect type brake hose. Background Technology

[0002] As a key component in the automotive braking system that transmits hydraulic power, the reliability of brake hose connections directly affects driving safety. Currently, most existing brake hose connections to brake lines or calipers use threaded connectors tightened with nuts. However, in actual assembly, the installation space near the vehicle chassis or wheel hubs is often quite narrow, making it inconvenient for operators to use wrenches for thread tightening, resulting in low assembly efficiency and prolonged time consumption.

[0003] More importantly, vehicles experience continuous vibrations and bumps during operation. Traditional threaded connections rely primarily on the friction between the threads for self-locking. Under prolonged and intense vibrations, these connections are prone to loosening, leading to brake fluid leaks or even connector detachment, seriously threatening driving safety. While some anti-loosening washers or adhesives exist, their effectiveness is often unsustainable under high-pressure hydraulic systems and harsh operating conditions, and once loosening occurs, it is difficult to detect.

[0004] Therefore, this utility model proposes a quick-connect brake hose to overcome the shortcomings of the prior art. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a quick-connect brake hose, which aims to improve the existing technology where brake hose connectors generally adopt a threaded tightening method, which has the problems of cumbersome and time-consuming assembly operations in narrow spaces, and the threads are prone to loosening during long-term vehicle vibration driving, leading to connection failure or leakage.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a quick-connect brake hose, comprising: a connecting hose, a connector, and a connecting seat, wherein the connecting hose is fixedly connected to one end of the connector, and the connecting seat is inserted into the interior of the connector;

[0007] It also includes a connecting assembly, which includes a slider, an L-shaped groove, a spring, a triangular locking block, a stop plate, and a screw. The slider is fixedly connected to the outer wall of the connecting seat. The L-shaped groove is formed in the inner wall of the connector. The slider is slidably connected to the inside of the L-shaped groove. The stop plate is disposed at the inner end of the L-shaped groove. The screw passes through the stop plate and is threadedly connected to the inside of the connector. The spring abuts against the bottom of the stop plate. The triangular locking block is fixedly connected to the bottom end of the spring and slidably connected to the inside of the L-shaped groove.

[0008] Preferably, it further includes a sealing assembly disposed at the connection between the connecting seat and the joint, for sealing the end face and side wall. The sealing assembly includes a first pressure plate, a metal pressure ring, a second pressure plate, a sealing groove, a retaining groove, and an O-ring. The first pressure plate is fixedly connected to the outside of the connecting seat, the metal pressure ring is fixedly connected to the edge of the first pressure plate, the second pressure plate is fixedly connected to the end of the joint, the retaining groove is formed on the end face of the second pressure plate, the metal pressure ring is inserted into the inside of the retaining groove, the sealing groove is formed on the side wall of the first pressure plate and the side wall of the second pressure plate respectively, and the O-ring is embedded in the inside of the sealing groove.

[0009] Preferably, the L-shaped slide groove has the feature of including a longitudinal sliding section and a transverse locking section that are interconnected, and the slider is slidably engaged with the longitudinal sliding section and can rotate into the transverse locking section.

[0010] Preferably, the abutment is located on the inner wall of the end of the transverse locking section, and the triangular block extends partially into the path of the transverse locking section under the elastic force of the spring to prevent the slider from moving in the opposite direction.

[0011] Preferably, the side of the triangular block facing the sliding direction of the slider has a guide slope, and the slider abuts against and presses against the guide slope during movement.

[0012] Preferably, the surface of the slider has a locking groove that matches the shape of the triangular block, and the triangular block engages with the inside of the locking groove.

[0013] Preferably, the sidewall of the connector has a countersunk mounting hole, and the head of the screw is located in the countersunk mounting hole and does not protrude from the outer surface of the connector.

[0014] Preferably, the first pressure plate has a circular structure and is perpendicular to the axis of the connecting seat, and the metal pressure ring protrudes along the axial direction of the first pressure plate.

[0015] Preferably, the sealing groove on the side wall of the first pressure plate and the sealing groove on the side wall of the second pressure plate are aligned in position, and the O-ring seal is filled under pressure into the cavity formed by the two sealing grooves.

[0016] This utility model has the following beneficial effects:

[0017] 1. In this utility model, by setting a connecting component, the sliding block on the outer wall of the connecting seat and the L-shaped sliding groove on the inner wall of the connector are used to cooperate. Combined with the spring-driven triangular block, the sliding block automatically engages and locks after the sliding block rotates to the position. This solves the problem that the existing threaded connection method is cumbersome to disassemble and assemble and is prone to reverse loosening under vibration conditions. It achieves the technical effects of quick insertion and removal assembly and stable mechanical anti-loosening, which significantly improves the installation efficiency and safety of brake hoses.

[0018] 2. This utility model, by setting a sealing component, utilizes the end faces of the first pressure plate and the second pressure plate to fit together, and cooperates with the metal pressure ring to be embedded in the slot for auxiliary positioning and limiting. At the same time, the O-ring seal in the sealing groove is squeezed to make it elastically deform and fill the gap. This solves the problem that simple end face contact is difficult to maintain a long-term stable seal under high pressure environment, and achieves the technical effect of double sealing protection, effectively preventing brake fluid leakage. Attached Figure Description

[0019] Figure 1 This is a perspective view of a quick-connect brake hose according to the present invention.

[0020] Figure 2 This is a schematic diagram showing the separation of the connector and the connecting seat of a quick-connect brake hose according to this utility model.

[0021] Figure 3 This is a schematic diagram of a quick-connect brake hose connection assembly proposed in this utility model;

[0022] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0023] Figure 5 This is a schematic diagram of a sealing assembly for a quick-connect brake hose proposed in this utility model.

[0024] Legend:

[0025] 1. Connecting hose; 2. Connector; 3. Connecting seat; 4. Connecting assembly; 401. Slider; 402. L-shaped groove; 403. Spring; 404. Triangular locking block; 405. Support plate; 406. Screw; 5. Sealing assembly; 501. First pressure plate; 502. Metal pressure ring; 503. Second pressure plate; 504. Sealing groove; 505. Locking groove; 506. O-ring seal. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Reference Figures 1-5 This utility model provides a quick-connect brake hose, which aims to solve the problems of existing brake hose connectors that mostly use threaded tightening, which are time-consuming to install and remove in confined spaces, and are prone to loosening due to vibration during vehicle operation. In addition, simple end-face contact is difficult to maintain long-term stable sealing performance in high-pressure oil circuits.

[0028] This quick-connect brake hose includes a connecting hose 1, a connector 2 fixedly connected to the end of the connecting hose 1, and a connector 3 inserted into the connector 2. The connecting hose 1 serves as the carrier for brake fluid delivery and is typically made of high-pressure resistant and corrosion-resistant rubber or composite materials. One end of the connecting hose 1 and one end of the connector 2 are fixedly connected by a crimping or vulcanization process to ensure the sealing and tensile strength of the connection. The connector 2 is a hollow tubular structure, and the other end of the connector 2 forms an insertion interface for accommodating the connector 3. The connector 3 is also a hollow tubular structure, and its outer diameter matches the inner diameter of the connector 2, allowing the connector 3 to be inserted axially into the connector 2, thereby connecting the connecting hose 1 to the external brake system pipeline and enabling the flow of brake fluid. To achieve quick disassembly and secure locking between the connector 3 and the connector 2, this quick-connect brake hose uses a specific mechanical structure to rotate and lock the connector 3 after it is inserted into the connector 2, avoiding cumbersome thread tightening operations. At the same time, the internal components work together to achieve an anti-loosening function.

[0029] The quick-connect brake hose also includes a connection component 4 and a sealing component 5.

[0030] The connecting assembly 4 includes a slider 401, an L-shaped groove 402, a spring 403, a triangular locking block 404, a stop plate 405, and a screw 406. The slider 401 is fixedly mounted on the outer cylindrical surface of the connecting seat 3. The slider 401 is preferably made of high-strength metal material and is fixed to the outer wall of the connecting seat 3 by welding or integral casting. The slider 401 protrudes radially outward from the connecting seat 3. An L-shaped groove 402 is provided on the inner wall of the connector 2. The shape of the L-shaped groove 402 matches the movement trajectory of the slider 401. When the connecting seat 3 is inserted into the connector 2, the slider 401 can slide along the L-shaped groove 402. A stop plate is provided at the inner end of the L-shaped groove 402. Plate 405 and abutment 405 are fixedly connected to the internal structure of connector 2 by screw 406. Specifically, the tube wall of connector 2 is provided with through hole or threaded hole. Screw 406 passes through abutment 405 and is screwed into the tube wall of connector 2, thereby firmly fixing abutment 405 in a specific position of L-shaped slide groove 402. A spring 403 is abutted against the bottom of abutment 405. The spring 403 is in a compressed or pre-tightened state. A triangular block 404 is fixedly connected to the bottom end of spring 403. The triangular block 404 slides inside the L-shaped slide groove 402. Under the elastic force of spring 403, the triangular block 404 has a tendency to move towards the center of L-shaped slide groove 402 or the moving path of slider 401.

[0031] The sealing assembly 5 includes a first pressure plate 501, a metal pressure ring 502, a second pressure plate 503, a sealing groove 504, a retaining groove 505, and an O-ring 506. The first pressure plate 501 is fixedly connected to the outer wall of the connecting seat 3. The first pressure plate 501 has an annular flange structure. A metal pressure ring 502 is fixedly embedded or welded to the edge of the first pressure plate 501 near the joint 2. The end of the joint 2 is fixedly connected to the second pressure plate 503. The second pressure plate 503 also has an annular flange structure. A retaining groove 505 is provided on the end face of the second pressure plate 503. The shape and size of the retaining groove 505 are adapted to the metal pressure ring 502. When the connecting seat 3 and the joint 2 are connected... When the connecting component 4 is locked, the metal pressure ring 502 can be precisely inserted and embedded in the slot 505. This embedded fit not only plays an auxiliary positioning role, but also limits the radial misalignment between the connecting seat 3 and the connector 2. Annular sealing grooves 504 are provided in the side walls of the first pressure plate 501 and the second pressure plate 503. An O-ring 506 is embedded in the sealing groove 504. When the connecting seat 3 is pushed into the connector 2 and locked, the O-ring 506 is elastically deformed by the joint compression of the first pressure plate 501 and the second pressure plate 503, thereby filling the gap in the sealing groove 504 and achieving the sealing of the high-pressure fluid.

[0032] As a preferred embodiment, in order to achieve smooth insertion and reliable locking of slider 401, L-shaped groove 402 includes a longitudinal sliding section and a transverse locking section that are interconnected. The longitudinal sliding section extends along the axial direction of joint 2, and the transverse locking section extends along the circumference of joint 2. Slider 401 can first slide straight into the longitudinal sliding section, and then rotate into the transverse locking section by rotating the connecting seat 3. This L-shaped path design makes the connection process clear and prevents the connecting seat 3 from directly coming out without rotation and locking, thus ensuring the safety of the connection.

[0033] As another preferred embodiment, in order to prevent the slider 401 from retracting in the reverse direction along the transverse locking section in a vibrating environment, the abutment 405 is provided at the inner wall of the end of the transverse locking section. The triangular block 404 extends partially into the path of the transverse locking section under the elastic force of the spring 403 to form a blocking structure. Specifically, the triangular block 404 is provided with a guide slope on the side facing the sliding direction of the slider 401. When the slider 401 moves along the transverse locking section, the front end of the slider 401 will first contact the guide slope. By squeezing the guide slope, the resistance of the spring 403 is overcome, forcing the triangular block 404 to retract upward to make room. When the slider 401 passes the highest point of the triangular block 404, the triangular block 404 rebounds under the action of the spring 403 and locks behind or to the side of the slider 401, thereby preventing the slider 401 from moving in the reverse direction and realizing mechanical anti-loosening.

[0034] As a further preferred embodiment, in order to improve the stability of locking, the surface of the slider 401 is provided with a locking groove that matches the shape of the triangular block 404. When the slider 401 moves to the predetermined locking position of the L-shaped groove 402, the rebounding triangular block 404 will directly engage with the inside of the locking groove. This concave-convex fit structure further restricts the degree of freedom of the slider 401, so that the connecting seat 3 and the connector 2 are reliably fixed in both the circumferential and axial directions.

[0035] As another preferred embodiment, in order to ensure the flatness of the outer surface of the connector 2 and prevent the screw 406 from scratching external objects, a countersunk mounting hole is provided on the side wall of the connector 2. The head of the screw 406 is completely located in the countersunk mounting hole and does not protrude from the outer cylindrical surface of the connector 2. This design protects the screw 406 from external impacts and also makes the overall appearance neater and more beautiful.

[0036] In a preferred embodiment, to optimize the force distribution of the sealing structure, the first pressure plate 501 is annular and is fixed vertically to the axial direction of the connecting seat 3. The metal pressure ring 502 protrudes along the axial direction of the first pressure plate 501. The groove 505 is opened on the corresponding end face of the second pressure plate 503, and the depth of the groove 505 is less than or equal to the height of the metal pressure ring 502. This dimensional design ensures that when the connection is locked, the metal pressure ring 502 can fully enter the groove 505, and the end faces of the first pressure plate 501 and the second pressure plate 503 can fit tightly together, thereby providing sufficient pre-tight compression for the O-ring 506 in the sealing groove 504.

[0037] As a preferred embodiment, in order to ensure the maximum sealing effect, the sealing groove 504 on the side wall of the first pressure plate 501 and the sealing groove 504 on the side wall of the second pressure plate 503 are aligned axially. When connected in place, the two sealing grooves 504 together form a receiving cavity. The O-ring seal 506 is filled into the receiving cavity after being compressed. This alignment design makes the O-ring seal 506 subjected to uniform force, avoiding shear deformation or sealing failure caused by misalignment of the sealing grooves, thereby ensuring the long-term sealing reliability of the brake hose under high pressure conditions.

[0038] Working principle: When connecting the brake hose, first align the first pressure plate 501 fixed on the outside of the connector 3 with the second pressure plate 503 at the end of the connector 2. Then push the connector 3 towards the connector 2 and rotate it. The connecting component 4 will complete the mechanical locking, and the sealing component 5 will simultaneously achieve sealing, so that the connecting hose 1 forms a stable and sealed passage with the connector 2 and the connector 3. When disassembly is required, release the locking state of the connecting component 4, and the connector 3 can be separated from the connector 2 to complete quick disassembly and assembly.

[0039] During the operation of the connecting component 4: an L-shaped groove 402 is provided on the inner wall of the connector 2, and a slider 401 is fixedly connected to the outer wall of the connecting seat 3. When the connecting seat 3 is pushed into the connector 2 and rotates, the slider 401 will slide into the longitudinal section of the L-shaped groove 402 and then move along the transverse section; at the same time, a stop plate 405 is provided on the inner wall of the end of the transverse section of the L-shaped groove 402. The stop plate 405 is fixed inside the connector 2 by screws 406, and a spring 403 is abutted against the bottom of the stop plate 405. The bottom end of the spring 403 abuts against the triangular block 404. When the slider 401 moves, it will squeeze the inclined surface of the triangular block 404, compressing the spring 403. When the slider 401 slides completely to the end of the L-shaped groove 402, the spring 403 rebounds and pushes the triangular block 404 into the corresponding groove of the slider 401, completing the mechanical fixation between the connector 2 and the connecting seat 3. When the spring 403 becomes fatigued, the abutment plate 405 can be removed by loosening the screw 406, and the spring 403 can be taken out for replacement.

[0040] During the operation of the sealing assembly 5: a first pressure plate 501 is fixedly connected to the outer side of the connecting seat 3, and a metal pressure ring 502 is fixed to the edge of the first pressure plate 501. A second pressure plate 503 is fixedly connected to the outer side of the connector 2. The end face of the second pressure plate 503 is provided with a groove 505 that is adapted to the metal pressure ring 502. At the same time, both the side walls of the first pressure plate 501 and the second pressure plate 503 are provided with sealing grooves 504. An O-ring 506 is provided in the sealing groove 504. When the connecting seat 3 and the connector 2 are locked by the connecting assembly 4, the first pressure plate 501 will fit with the second pressure plate 503, the metal pressure ring 502 will be embedded in the groove 505, and the O-ring 506 will be squeezed to fill the gap of the sealing groove 504, thus achieving the sealing at the connection between the connector 2 and the connecting seat 3.

Claims

1. A quick-connect brake hose, comprising: Connecting hose (1), connector (2) and connecting seat (3), wherein the connecting hose (1) is fixedly connected to one end of the connector (2) and the connecting seat (3) is inserted into the inside of the connector (2); The invention is characterized by further including a connecting component (4), which includes a slider (401), an L-shaped groove (402), a spring (403), a triangular block (404), a stop plate (405), and a screw (406). The slider (401) is fixedly connected to the outer wall of the connecting seat (3), the L-shaped groove (402) is opened on the inner wall of the connector (2), the slider (401) is slidably connected to the inside of the L-shaped groove (402), the stop plate (405) is disposed at the inner end of the L-shaped groove (402), the screw (406) passes through the stop plate (405) and is threadedly connected to the inside of the connector (2), the spring (403) abuts against the bottom of the stop plate (405), the triangular block (404) is fixedly connected to the bottom end of the spring (403), and the triangular block (404) is slidably connected to the inside of the L-shaped groove (402).

2. The quick-connect brake hose according to claim 1, characterized in that, It also includes a sealing assembly (5), which includes a first pressure plate (501), a metal pressure ring (502), a second pressure plate (503), a sealing groove (504), a slot (505), and an O-ring (506). The first pressure plate (501) is fixedly connected to the outside of the connecting seat (3), the metal pressure ring (502) is fixedly connected to the edge of the first pressure plate (501), the second pressure plate (503) is fixedly connected to the end of the connector (2), the slot (505) is opened on the end face of the second pressure plate (503), the metal pressure ring (502) is inserted into the inside of the slot (505), the sealing groove (504) is opened on the side wall of the first pressure plate (501) and the side wall of the second pressure plate (503), and the O-ring (506) is embedded in the inside of the sealing groove (504).

3. The quick-connect brake hose according to claim 1, characterized in that, The L-shaped slide (402) includes a longitudinal sliding section and a transverse locking section that are interconnected. The slider (401) is slidably engaged with the longitudinal sliding section and can rotate into the transverse locking section.

4. A quick-connect brake hose according to claim 3, characterized in that, The abutment (405) is located on the inner wall of the end of the transverse locking section, and the triangular block (404) extends into the path of the transverse locking section under the elastic force of the spring (403) to block the slider (401) from moving in the opposite direction.

5. A quick-connect brake hose according to claim 1, characterized in that, The triangular block (404) has a guide slope on the side facing the sliding direction of the slider (401), and the slider (401) abuts against and squeezes the guide slope during the movement.

6. A quick-connect brake hose according to claim 1, characterized in that, The surface of the slider (401) is provided with a locking groove that matches the shape of the triangular block (404), and the triangular block (404) is engaged inside the locking groove.

7. A quick-connect brake hose according to claim 1, characterized in that, The side wall of the connector (2) is provided with a countersunk mounting hole, and the head of the screw (406) is located in the countersunk mounting hole and does not protrude from the outer surface of the connector (2).

8. A quick-connect brake hose according to claim 2, characterized in that, The first pressure plate (501) has a circular structure and is perpendicular to the axis of the connecting seat (3), and the metal pressure ring (502) protrudes along the axis of the first pressure plate (501).

9. A quick-connect brake hose according to claim 2, characterized in that, The sealing groove (504) on the side wall of the first pressure plate (501) is aligned with the sealing groove (504) on the side wall of the second pressure plate (503), and the O-ring (506) is filled under pressure into the cavity formed by the two sealing grooves (504).

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