Automobile brake hose assembly with bending protection function

Abstract

The invention discloses a bending protection automobile brake hose assembly, which belongs to the technical field of automobile brake hose assemblies, and comprises a brake hose body, and an automobile body side joint and a wheel side joint which are fixed at two ends of the brake hose body and connected with an automobile, the automobile brake hose assembly is characterized in that the brake hose body is slidably sleeved with an anti-bending corrugated pipe, a fixed sleeve is fixedly installed in the middle of the outer portion of the corrugated pipe, two sets of movable sleeves are symmetrically installed on the two sides of the fixed sleeve, and the corrugated pipe is sleeved with the two sets of movable sleeves; according to the automobile brake hose assembly, the position of the corrugated pipe outside the automobile brake hose assembly and the installation redundant length of the automobile brake hose assembly can be accurately adjusted and controlled according to the automobile installation environment and the driving dynamic change condition, the automobile brake hose assembly is high in use universality, and the anti-bending capacity is good.

Description

Technical Field

[0001] This invention relates to the field of automotive brake hose assembly technology, specifically to an automotive brake hose assembly with bend protection. Background Technology

[0002] The automotive brake hose assembly is a core flexible connector in the automotive hydraulic braking system that connects the static brake lines of the vehicle body with the dynamic brake components of the wheels. It typically consists of an oil-resistant rubber composite hose body, metal connectors with mounting brackets at both ends, and auxiliary fixing clips. It stably transmits brake fluid pressure under dynamic conditions such as wheel steering and suspension bounce, and is one of the key components to ensure the safe and stable operation of the vehicle braking system.

[0003] For example, patent CN221393434U discloses an automotive brake hose assembly, including an automotive brake hose. A fixing sleeve is fitted onto the surface of the brake hose, and the outer surface of the fixing sleeve has evenly distributed side grooves. A compression spring is fixedly installed inside the side grooves, and a movable connecting plate is fixedly installed on the side of the compression spring that is relatively far away from it. By setting a rotating groove and a guide groove to cooperate, the locking block is guided and locked, allowing the fixing sleeve to rotate inside the connector. This transforms the fixed installation between the automotive brake hose and the fixing sleeve into a movable installation, preventing the connector and the automotive brake hose from loosening or falling off due to long-term use and vibration. This effectively improves the stability of the automotive brake hose and solves the problem that existing automotive brake hoses and connectors are prone to loosening and falling off due to long-term use and vibration, affecting the stability of the hose.

[0004] For example, patent CN212353953U discloses a brake hose assembly, a braking system, and an automobile. The brake hose assembly includes a hose connector and a connecting member. The hose connector has a flange along its circumferential direction on its peripheral wall. At least two limiting protrusions with different shapes are provided at intervals along the circumferential direction on the peripheral wall of the flange. A groove is also provided on the peripheral wall of the hose connector. The connecting member includes a connecting member body and an elastic bent plate. One end of the connecting member body is used to connect to the vehicle body bracket, and the other end is connected to the bent plate. The end of the bent plate connected to the connecting member body abuts against the end face of the flange, and the other end of the bent plate is connected to the groove. By setting limiting protrusions of different shapes, the problem of hose twisting caused by workers' inability to accurately identify the hose direction during assembly is avoided. In addition, the bent plate abuts against the end face of the flange, which improves the strength of the connection between the bent plate and the hose connector.

[0005] For example, patent CN223045729U discloses a brake hose assembly in an automotive brake line, including protective plates. Two sets of protective plates are provided, each with an adjustment component at its top and bottom. Brake hoses are placed inside the plates on their adjacent sides, and telescopic plates are located at the midpoint between the plates on their opposite sides. Through the interaction of connecting plates, telescopic plates, protective plates, sleeves, fixing grooves, clamps, sleeves, connecting sleeves, springs, and grooves, operators can easily adjust the spacing of the protective plates. Adjusting the spacing of the protective plates allows control over the expansion of the brake hose, preventing excessive expansion and hose breakage, thus facilitating the extension of the brake hose. In terms of later service life, it can also protect the hose body and reduce wear caused by external factors. However, in actual vehicle installation and use, existing brake hose assemblies are limited by the different installation environments of chassis layout and suspension travel of different vehicle models. Their length is mostly customized for a single vehicle model and lacks cross-vehicle universal adaptability. When the hose is too long, it is easy to sag and drag under the chassis, continuously rubbing and wearing with road gravel and metal parts. If it is too short, it will be forcibly pulled when the wheel is at its limit or the suspension bounces significantly, causing abnormal bending stress. Both of these situations will accelerate the bending fatigue and rubber aging of the hose, not only significantly shortening its service life, but also potentially causing a decrease in braking performance due to hose damage and leakage, posing a potential hazard to driving safety.

[0006] To address the aforementioned issues, there is an urgent need for innovative design based on the existing automotive brake hose assembly. Summary of the Invention

[0007] The purpose of this invention is to provide a bend-protected automotive brake hose assembly to solve the problems mentioned in the background art, such as the existing brake hose assemblies being limited by the different installation environments of chassis layout and suspension travel of different vehicle models, and their lengths being mostly customized for a single vehicle model, lacking universal adaptability across vehicle models.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a bend-protected automotive brake hose assembly, comprising a brake hose body and body-side connectors and wheel-side connectors fixed at both ends of the brake hose body and connected to the vehicle. The automotive brake hose assembly further comprises: a bend-resistant corrugated tube slidably sleeved on the outside of the brake hose body; a fixed sleeve fixedly installed at the middle position of the corrugated tube; two sets of movable sleeves symmetrically installed on both sides of the fixed sleeve; the two sets of movable sleeves being sleeved on the outside of the corrugated tube; and mounting brackets for assembly with the bottom of the vehicle fixedly installed on the outside of the two sets of movable sleeves; the movable sleeves are provided with a tightening mechanism for adjusting the slack of the brake hose body installed on the bottom of the vehicle, and the movable sleeves are also provided with a tightening mechanism for reinforcing the assembly of the corrugated tube and the brake hose body.

[0009] Preferably, a guide rod is fixedly connected to the fixed sleeve, and the guide rod is slidably fitted into the mounting bracket.

[0010] Preferably, the tightening mechanism includes a drive disc slidably mounted on the surface of the mounting bracket, a push rod rotatably connected to the drive disc, and the other end of the push rod rotatably connected to the surface of the fixed sleeve.

[0011] Preferably, two sets of limiting strips are fixed on the surface of the mounting bracket, and the drive disk is slidably connected between the two sets of limiting strips;

[0012] The limit bar has a groove, and a sliding column is slidably installed in the groove. The sliding column is fixedly installed on the upper and lower surfaces of the drive disc.

[0013] Preferably, a lead screw is rotatably connected to the outer surface of the mounting bracket, and the drive disc is threadedly connected to the lead screw.

[0014] Preferably, the tightening mechanism includes multiple sets of positioning columns installed at equal angles on the movable sleeve along the central axis. The positioning columns are slidably connected to the movable sleeve in the radial direction. An elastic straight rod is fixed to one end of the positioning column near the bellows, and the elastic straight rod is pressed against the outside of the bellows.

[0015] Preferably, the movable sleeve has a movable groove on its outside, and a movable ring is slidably installed on the outside of the movable sleeve along the opening direction of the movable groove; the inner wall of the movable ring has multiple strip grooves at equal angles along the central axis, and the inner wall of the movable ring has an inclined groove that runs through the end of the strip groove; the positioning post is slidably fitted in the strip groove, and the movable ring moves and is pressed against the surface of the positioning post by the inclined surface of the inclined groove.

[0016] Preferably, two sets of positioning plates are fixedly installed on the outside of the movable ring. The positioning plates are attached to the inner side of the mounting bracket and have positioning bolt holes. The mounting bracket has fixing bolt holes. After the positioning plates are moved laterally, the positioning bolt holes and fixing bolt holes are aligned and connected.

[0017] Preferably, the sliding column has a slot on the side away from the mounting bracket, and the mounting bracket is provided with a pressure rod that moves laterally and presses against the slot on the sliding column, with the pressure rod engaging with the slot.

[0018] Preferably, a pressure ring is slidably fitted inside the fixing bolt hole inside the mounting bracket, and a guide post is fixedly connected below the pressure ring. The guide post is slidably connected in the mounting bracket. A movable piece is fixed outside the guide post and is fitted into the outer surface of the mounting bracket. The outside of the movable piece is fixedly connected to the pressure rod, and the movable piece and the pressure rod are located on both sides of the sliding post.

[0019] Compared with the prior art, the beneficial effects of the present invention are: the bend-protected automotive brake hose assembly can flexibly adjust the installation and towing length of the brake hose body according to the installation environment under the vehicle and the dynamic changes of vehicle driving, and can adjust the position of the corrugated pipe protection on the outside of the brake hose body so that it is completely distributed in the easily bendable position, reducing the impact of vehicle driving on hose bending, improving the bend protection capability of the automotive brake hose assembly during installation and use, and enhancing the versatility of the automotive brake hose assembly.

[0020] During vehicle operation, the brake hose body generates dynamically changing bending stress concentration areas as the wheels turn and the suspension bounces. By sliding and adjusting the position of the corrugated pipe outside the hose, it can always completely cover the stress concentration section that is prone to bending. The corrugated structure of the corrugated pipe itself disperses bending stress and absorbs vibration impact, thereby reducing fatigue damage to the hose. At the same time, it isolates the bending section from wear caused by gravel and oil, significantly improving the service life and reliability of the brake hose assembly.

[0021] The movable sleeve is equipped with a tightening mechanism to adjust the slack of the brake hose body when installed on the bottom of the vehicle. Depending on the installation environment at the bottom of the vehicle, the longitudinal movement of the fixed sleeve is adjusted, so that the brake hose body bends and moves between the two sets of movable sleeves, precisely tightening or releasing the redundant length of the brake hose body. This can completely eliminate the problems of sag and dragging caused by excessively long hoses and wear from gravel, while avoiding the tensile stress caused by excessively short hoses. This keeps the hose in an ideal state of being taut but not tight, and slack but not sagging.

[0022] The movable sleeve is also equipped with a tightening mechanism to reinforce the assembly of the corrugated pipe and the brake hose body. For the adjusted brake hose body and corrugated pipe, the movable ring is pushed to move laterally. The movable ring presses the positioning post and the elastic rod through the inclined groove, so that the elastic rod is pressed against the outside of the corrugated pipe, which improves the stability of the movement position of the corrugated pipe and the brake hose body. At the same time, the movable sleeve limits the protection to the easily bendable end of the brake hose body, which can prevent the brake hose body from excessive axial twisting during vehicle operation and improve the protection performance of the brake hose body. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the brake hose body structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the bellows structure of the present invention.

[0025] Figure 3 This is a schematic diagram of the mounting bracket structure of the present invention.

[0026] Figure 4 This is a schematic diagram of the movable sleeve structure of the present invention.

[0027] Figure 5 This is a schematic diagram of the drive disk structure of the present invention.

[0028] Figure 6 This is a schematic diagram of the elastic straight rod structure of the present invention.

[0029] Figure 7 This is a schematic diagram of the moving ring structure of the present invention.

[0030] Figure 8 This is a schematic diagram of the cross-sectional structure of the strip groove and inclined groove of the present invention.

[0031] Figure 9 This is a schematic diagram of the pressure ring structure of the present invention.

[0032] Figure 10 This is a schematic diagram of the pressure bar structure of the present invention.

[0033] In the diagram: 1. Brake hose body; 2. Vehicle side connector; 3. Wheel side connector; 4. Corrugated pipe; 5. Fixed sleeve; 51. Guide rod; 6. Moving sleeve; 7. Mounting bracket; 8. Limiting strip; 9. Slide groove; 10. Slide column; 101. Slot; 11. Drive disc; 12. Push rod; 13. Lead screw; 14. Positioning pin; 15. Elastic straight rod; 16. Moving groove; 17. Moving ring; 171. Strip groove; 172. Inclined groove; 173. Positioning plate; 174. Positioning bolt hole; 18. Fixed bolt hole; 19. Pressure ring; 20. Guide column; 21. Moving piece; 22. Pressure rod. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figure 1 - Figure 3The present invention provides the following technical solution: a bend-protected automotive brake hose assembly, comprising a brake hose body 1 and a vehicle body side connector 2 and a wheel side connector 3 fixed at both ends and connected to the vehicle. The automotive brake hose assembly further comprises: a bend-resistant corrugated tube 4 slidably sleeved on the outside of the brake hose body 1; a fixed sleeve 5 fixedly installed at the middle position of the outside of the corrugated tube 4; two sets of movable sleeves 6 symmetrically installed on both sides of the fixed sleeve 5; the two sets of movable sleeves 6 are sleeved on the outside of the corrugated tube 4; and mounting brackets 7 assembled with the bottom of the vehicle are fixedly installed on the outside of the two sets of movable sleeves 6; the movable sleeves 6 are provided with a tightening mechanism for adjusting the slack of the brake hose body 1 installed on the bottom of the vehicle, and the movable sleeves 6 are also provided with a tightening mechanism for reinforcing the assembly of the corrugated tube 4 and the brake hose body 1.

[0036] Please see Figure 2 - Figure 5 A guide rod 51 is fixedly connected to the fixed sleeve 5, and the guide rod 51 is slidably fitted into the mounting bracket 7. The tightening mechanism includes a drive disc 11 slidably mounted on the surface of the mounting bracket 7, a push rod 12 rotatably connected to the drive disc 11, and the other end of the push rod 12 rotatably connected to the surface of the fixed sleeve 5. Two sets of limiting strips 8 are fixedly mounted on the surface of the mounting bracket 7, and the drive disc 11 is slidably connected between the two sets of limiting strips 8; a sliding groove 9 is opened on the limiting strip 8, and a sliding column 10 is slidably mounted in the sliding groove 9, and the sliding column 10 is fixedly mounted on the upper and lower surfaces of the drive disc 11. A lead screw 13 is rotatably connected to the outer surface of the mounting bracket 7, and the drive disc 11 is threadedly connected to the lead screw 13.

[0037] The brake hose body 1 is installed on the vehicle parts via the vehicle side connector 2 and the wheel side connector 3. Both the vehicle side connector 2 and the wheel side connector 3 are equipped with brackets to reinforce the installation and fixation to the vehicle. First, determine the position where the brake hose body 1 is most likely to bend during vehicle movement. Slide the bellows 4 outside the brake hose body 1 so that the bellows 4 completely protects the position where the brake hose body 1 is most likely to bend. The bellows 4 itself disperses bending stress and absorbs vibration impact by utilizing its own corrugated structure, thereby reducing fatigue damage to the brake hose body 1 and preventing it from bending and breaking due to the dynamic influence of vehicle movement.

[0038] In automotive aftermarket repair, when brake hose assemblies need replacement due to aging or damage, repair shops or car owners often choose non-original brake hose assemblies as replacements due to the long supply cycle and high procurement costs of original parts. However, non-original parts are mostly of universal design, and their length is difficult to match perfectly with the original hoses of different models. After installation, length redundancy or insufficiency is very likely to occur. Overly long hoses will sag and drag under the chassis, continuously rubbing and wearing against road debris and metal parts. Overly short hoses will be forcibly pulled when the wheels turn or the suspension bounces, causing abnormal bending stress. This not only significantly shortens the life of the hoses but may also lead to a decrease in braking performance due to brake fluid leakage, posing a serious threat to driving safety.

[0039] For automotive repairs requiring the replacement of non-original brake hose assemblies, the redundant length of the brake hose body 1 can be adjusted according to the vehicle's installation space limitations and dynamic changes during vehicle operation. Workers use installation tools or manually control the screw 13 to rotate. Under the threaded transmission between the screw 13 and the drive disc 11, the drive disc 11 can be controlled to move laterally between two sets of limiting strips 8. At this time, the sliding pins 10 above and below the drive disc 11 slide along the direction of the sliding groove 9. The push rod 12, connected between the drive disc 11 and the fixed sleeve 5, rotates at both ends. The rotating push rod 12 can push the fixed sleeve 5 to move longitudinally between two sets of movable sleeves 6. The fixed sleeve 5 is fixed to the outside of the bellows 4, which drives the bellows 4 and the brake hose body 1 to move and bend, eliminating the redundant length of the brake hose body 1, ensuring the hose is always in an ideal state of tension without tightness and relaxation without sagging.

[0040] Example 2: Please refer to Figure 6 - Figure 8 Based on Embodiment 1, a tightening mechanism is also disclosed, the specific structure of which is as follows: The tightening mechanism includes multiple sets of positioning pins 14 installed at equal angles along the central axis direction on the movable sleeve 6. The positioning pins 14 are slidably connected to the movable sleeve 6 in the radial direction. A spring rod 15 is fixed to one end of the positioning pin 14 near the bellows 4, and the spring rod 15 is pressed against the outside of the bellows 4. A movable groove 16 is opened on the outside of the movable sleeve 6, and a movable ring 17 is slidably installed on the outside of the movable sleeve 6 along the opening direction of the movable groove 16. Multiple strip grooves 171 are opened at equal angles along the central axis direction on the inner wall of the movable ring 17. An inclined groove 172 is opened through the end of the strip groove 171 on the inner wall of the movable ring 17. The positioning pins 14 are slidably fitted into the strip grooves 171, and the movable ring 17 moves through the inclined surface of the inclined groove 172 and is pressed against the surface of the positioning pins 14.

[0041] Please see Figure 9 and Figure 10Two sets of positioning plates 173 are fixedly installed on the outside of the movable ring 17. The positioning plates 173 are attached to the inner side of the mounting bracket 7. The positioning plates 173 have positioning bolt holes 174. The mounting bracket 7 has fixing bolt holes 18. After the positioning plates 173 are moved laterally, the positioning bolt holes 174 and fixing bolt holes 18 are aligned and connected. The sliding column 10 has a slot 101 on the side away from the mounting bracket 7. The mounting bracket 7 is provided with a pressure rod 22 that moves laterally and moves and presses against the slot 101 on the sliding column 10. The pressure rod 22 is engaged with the slot 101. A pressure ring 19 is slidably fitted inside the fixing bolt hole 18 inside the mounting bracket 7. A guide post 20 is fixedly connected below the pressure ring 19 and is slidably connected in the mounting bracket 7. A movable piece 21 is fixedly fixed to the outside of the guide post 20 and is fitted into the outer surface of the mounting bracket 7. The outside of the movable piece 21 is fixedly connected to the pressure rod 22, and the movable piece 21 and the pressure rod 22 are located on both sides of the sliding column 10.

[0042] After adjusting the corresponding position of the bellows 4 and the redundant length of the brake hose body 1, the positions of the brake hose body 1 and the bellows 4 are reinforced. First, the bellows 4 is fixed to the bottom of the car through the mounting bracket 7, initially limiting the position of the bellows 4 outside the brake hose body 1. Then, the moving ring 17 is slid and adjusted along the direction of the moving groove 16, so that the moving ring 17 moves closer to the other side of the moving sleeve 6. During the lateral movement of the moving ring 17, the top surface of the positioning post 14 gradually contacts the strip groove 171 and then contacts the inclined groove 172. The inclined surface of the inclined groove 172 can press the positioning post 14, so that the positioning post 14 and the elastic rod 15 can move closer to the bellows 4. The elastic rod 15 is pressed against the outside of the bellows 4, so that the bellows 4 is stably pressed against the outside of the brake hose body 1, thus making the position of the bellows 4 outside the brake hose body 1 relatively stable.

[0043] After the moving ring 17 moves laterally, the positioning bolt hole 174 moves to correspond with the fixed bolt hole 18. The moving position of the moving ring 17 is reinforced by the bolt. In addition, during the process of the bolt being installed into the fixed bolt hole 18, the bolt presses the pressure ring 19 in the fixed bolt hole 18, making the pressure ring 19 closer to the positioning plate 173. At this time, the pressure ring 19 drives the pressure rod 22 to move synchronously through the guide post 20 and the moving piece 21 below, so that the pressure rod 22 moves and presses into the slot 101 on the side of the slide column 10. Under the pressing action of the pressure rod 22, the slide column 10 further limits the movement adjustment position of the drive disc 11, and maintains the stability of the movement of the fixed sleeve 5 to adjust the redundant length of the brake hose body 1.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0045] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bend-protected automotive brake hose assembly, comprising a brake hose body (1) and body-side connectors (2) and wheel-side connectors (3) fixed at both ends of the hose and connected to the vehicle, characterized in that, Also includes: The brake hose body (1) is slidably fitted with a bend-resistant corrugated tube (4). A fixed sleeve (5) is fixedly installed at the middle position of the corrugated tube (4). Two sets of movable sleeves (6) are symmetrically installed on both sides of the fixed sleeve (5). The two sets of movable sleeves (6) are fitted on the outside of the corrugated tube (4). The two sets of movable sleeves (6) are fixedly installed with mounting brackets (7) assembled with the bottom of the car. The movable sleeve (6) is provided with a tightening mechanism for adjusting the slack of the brake hose body (1) installed at the bottom of the vehicle, and the movable sleeve (6) is also provided with a tightening mechanism for assembling the reinforcing corrugated pipe (4) with the brake hose body (1).

2. The automotive brake hose assembly with bend protection according to claim 1, characterized in that: A guide rod (51) is fixedly connected to the fixed sleeve (5), and the guide rod (51) is slidably fitted into the mounting bracket (7).

3. The automotive brake hose assembly with bend protection according to claim 1, characterized in that: The tightening mechanism includes a drive disc (11) that is slidably mounted on the surface of the mounting bracket (7), and a push rod (12) is rotatably connected to the drive disc (11). The other end of the push rod (12) is rotatably connected to the surface of the fixed sleeve (5).

4. The automotive brake hose assembly with bend protection according to claim 3, characterized in that: The mounting bracket (7) has two sets of limiting strips (8) fixed on its surface, and the drive disk (11) is slidably connected between the two sets of limiting strips (8); The limit bar (8) has a groove (9) and a sliding column (10) is slidably installed in the groove (9). The sliding column (10) is fixedly installed on the upper and lower surfaces of the drive disk (11).

5. A bend-protected automotive brake hose assembly according to claim 4, characterized in that: The mounting bracket (7) is rotatably connected to a lead screw (13), and the drive disc (11) is threadedly connected to the lead screw (13).

6. A bend-protected automotive brake hose assembly according to claim 4, characterized in that: The tightening mechanism includes multiple sets of positioning pins (14) installed at equal angles along the central axis on the movable sleeve (6). The positioning pins (14) are slidably connected to the movable sleeve (6) in the radial direction. An elastic rod (15) is fixed at one end of the positioning pin (14) near the bellows (4). The elastic rod (15) is pressed against the outside of the bellows (4).

7. A bend-protected automotive brake hose assembly according to claim 6, characterized in that: The movable sleeve (6) has a movable groove (16) on its outside, and a movable ring (17) is slidably installed on the outside of the movable sleeve (6) along the opening direction of the movable groove (16). The inner wall of the moving ring (17) is provided with multiple strip grooves (171) at equal angles along the central axis, and the inner wall of the moving ring (17) is provided with an inclined groove (172) at the end of the strip grooves (171). The positioning post (14) slides into the strip groove (171), and the moving ring (17) moves through the inclined surface of the inclined groove (172) and presses against the surface of the positioning post (14).

8. A bend-protected automotive brake hose assembly according to claim 7, characterized in that: Two sets of positioning plates (173) are fixedly installed on the outside of the movable ring (17). The positioning plates (173) are attached to the inner side of the mounting bracket (7), and positioning bolt holes (174) are opened on the positioning plates (173). The mounting bracket (7) has a fixing bolt hole (18). After the positioning plate (173) moves laterally, the positioning bolt hole (174) and the fixing bolt hole (18) are connected and correspond.

9. A bend-protected automotive brake hose assembly according to claim 8, characterized in that: The sliding column (10) has a slot (101) on the side away from the mounting bracket (7). The mounting bracket (7) is provided with a pressure rod (22) that moves laterally and presses against the slot (101) on the sliding column (10). The pressure rod (22) is engaged with the slot (101).

10. A bend-protected automotive brake hose assembly according to claim 1, characterized in that: A pressure ring (19) is slidably fitted inside the fixing bolt hole (18) inside the mounting bracket (7), and a guide post (20) is fixedly connected below the pressure ring (19). The guide post (20) is slidably connected in the mounting bracket (7). The guide post (20) is fixed with a movable piece (21) on the outside, and the movable piece (21) is fitted into the outer surface of the mounting bracket (7); The movable piece (21) is fixedly connected to the pressure rod (22) on the outside, and the movable piece (21) and the pressure rod (22) are located on both sides of the sliding column (10).

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