Flame-retardant nylon hydraulic brake hose

Abstract

The utility model discloses a flame-retardant nylon hydraulic brake hose which comprises a long nylon guide pipe, an impermeable layer is arranged on the inner side of the long nylon guide pipe, a flame-retardant layer is arranged on the outer side of the long nylon guide pipe, a hydraulic passage is arranged on the inner side of the impermeable layer in the front-back direction, and annular pipes are symmetrically fixed to the front end and the rear end of the long nylon guide pipe. A plurality of extrusion rubber rings are embedded into the peripheries of the opposite sides of the annular pipes at equal intervals front and back, limiting annular belts are fixedly embedded into the peripheries of the opposite sides of the annular pipes, sliding barrels are embedded into the outer sides of the annular pipes, and the outer sides of the extrusion rubber rings are correspondingly embedded into the inner walls of the sliding barrels and are fixedly embedded into the inner walls of the sliding barrels; a sliding groove is reserved in the position, between the extrusion rubber ring and the limiting ring belt, of the sliding barrel, so that after the whole hose is assembled, automatic sliding buffering protection can be conducted according to different tensile strengths caused by accidental pulling, or the circulation stability of a hydraulic channel of the whole hose can be kept only through slight deformation.

Description

Technical Field

[0001] The utility model relates to the technical field of brake hoses, in particular to a flame-retardant nylon hydraulic brake hose. Background Art

[0002] Automobile brake hose (commonly known as brake pipe) is a component used in automobile brake system. Its main function is to transmit brake medium during automobile braking, ensuring that the braking force is transmitted to the automobile brake shoe or brake caliper to generate braking force, so that the brake is effective at all times. The hydraulic brake hose assembly consists of brake hose and brake hose connector, which are mostly made of nylon material to ensure pressure resistance and stability.

[0003] Existing brake hose connectors are often fixed directly to the brake hose by crimping or cold extrusion, which is a rigid and permanent connection method. The force transmission effect between them is relatively large. When the brake hose is accidentally pulled, the tension transmitted to the connector is large, which can easily cause certain damage to the interface, resulting in deformation, damage or leakage of the interface connection. Utility Model Content

[0004] The purpose of the utility model is to provide a flame-retardant nylon hydraulic brake hose, which ensures that after the entire hose is assembled, it can automatically perform slippage buffering protection against different tensile strengths caused by accidental pulling or only slightly deform to maintain the flow stability of the hydraulic passage of the entire hose.

[0005] The outer periphery of the tube is provided with a circle, and a limit ring is nested in the outer periphery of the opposite side of the tube, and a limited ring band is nested and fixed on the outer periphery of the opposite side of the tube. A slide is nested on the outer side of the ring tube, and the outer sides of the extruded rubber rings are correspondingly embedded in the inner wall of the slide tube and fixed with it. The slide tube is reserved with a slide groove between the extruded rubber ring and the limiting ring band, and the opposite side of the slide tube is fixedly connected with a hoop, and the opposite side of the hoop is fixedly connected with an internal connection port, and the inner sides of the internal connection ports are coaxially connected with the ring tube and the nylon long tube, by arranging the ring tube and the adjacent ones between the nylon long tube and the docking port. The slide tubes are combined in a sliding nested manner. First, an extrusion rubber ring is set on the outer side of the ring tube near the end of the long nylon tube to provide a certain degree of sliding limit protection, and then a limit ring belt is set on the outer side of the ring tube away from the long nylon tube to provide anti-slip limit protection. Therefore, when the long nylon tube is accidentally pulled, it will first pull the ring tube and the slide tube to slide under force. When the force exceeds the compressive limit of the extrusion rubber ring, it will be compressed and deformed under force, causing the ring tube and the slide tube to slide relative to each other until the extrusion rubber ring contacts and limits the position and stops sliding. When the force does not exceed the compressive limit of the extrusion rubber ring, it will only cause the extrusion rubber ring to deform slightly. The compressive force limit of the extrusion rubber ring corresponds to the minimum tensile strength setting after the docking port and the external joint are threaded together, ensuring that after the entire hose is assembled, it can automatically perform sliding buffer protection or only slightly deform according to the different tensile strengths of accidental pulling to maintain the flow stability of the hydraulic passage of the entire hose.

[0006] According to the flame-retardant nylon hydraulic brake hose, a sealing ring is fixedly connected to the inner edge of the side opposite to the inner port, and the inner side of the sealing ring is pressed and fitted with the outer connector of the inner port to perform extrusion sealing at the joint to prevent leakage.

[0007] According to the flame-retardant nylon hydraulic brake hose, retaining rings are fixedly connected to the outer edges of opposite sides of the ring tube. The opposite sides of the retaining rings are respectively embedded in the inner wall of the slide tube and are unilaterally slidably limited in the forward and backward directions with the slide tube, providing sealing protection and unilateral sliding limitation.

[0008] According to the flame-retardant nylon hydraulic brake hose, a rubber sleeve is fixed around the outer side of the slide tube, and the outer side of the rubber sleeve is covered with a layer of anti-slip strips, which is convenient for workers to operate the docking by hand.

[0009] According to the flame-retardant nylon hydraulic brake hose, the outer side of the flame-retardant layer is covered with a waterproof membrane to prevent moisture from the external environment from corroding the long nylon conduit.

[0010] According to the flame-retardant nylon hydraulic brake hose, the adjacent sides of the long nylon conduit, annular tube, and docking port are each jacketed with a sealing gasket. The front and rear sides of the sealing gasket are respectively pressed and sealed against the long nylon conduit, annular tube, and docking port, thereby maintaining the tightness and stability of the hydraulic medium transmission.

[0011] According to the flame-retardant nylon hydraulic brake hose, the outer surface of the extruded rubber ring and the inner surface of the slide tube are both covered with a layer of synovial film, ensuring smooth relative sliding of the ring tube and the slide tube when the long nylon tube is pulled, thereby avoiding large friction losses.

[0012] According to the flame-retardant nylon hydraulic brake hose, a buffer pad is fixedly connected to the side opposite the internal port. The side opposite the buffer pad corresponds to the external connector of the internal port for extrusion and stop. This ensures the sealing of the docking port and the external connector after threaded docking and provides stop protection.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The present invention provides a method for preventing the nylon pipe from sliding when the nylon pipe is pulled out of the water, so that the nylon pipe can be prevented from sliding out of the water.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 The utility model discloses a kind of structure schematic diagram of long nylon conduit in flame-retardant nylon hydraulic brake hose of the utility model;

[0018] Figure 2 The utility model discloses a kind of section view of sliding cylinder in flame-retardant nylon hydraulic brake hose of the utility model;

[0019] Figure 3 The utility model discloses a kind of connection structure schematic diagram of sliding cylinder and inner port in flame-retardant nylon hydraulic brake hose of the utility model;

[0020] Figure 4 The utility model discloses a kind of overall schematic diagram of flame-retardant nylon hydraulic brake hose of the utility model.

[0021] In the drawing: 1, long nylon conduit;2, anti-infiltration layer;3, flame-retardant layer;4, hydraulic passage;5, ring pipe;6, extruded rubber ring;7, limit ring belt;8, sliding cylinder;9, ferrule;10, inner port;11, sealing gasket ring;12, baffle ring. Specific embodiments

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] Please refer to Figure 1 - Figure 4The utility model provides a technical scheme: a kind of flame-retardant nylon hydraulic brake hose, including nylon long conduit 1, it is characterized in that, the inside of nylon long conduit 1 is equipped with anti-permeation layer 2, the outside of nylon long conduit 1 is equipped with flame-retardant layer 3, the outside of flame-retardant layer 3 is covered with a layer of waterproof film, the inside of anti-permeation layer 2 is equipped with hydraulic passage 4 in front-back direction, the front and back two ends of nylon long conduit 1 are fixed with ring pipe 5 symmetrically, the periphery of opposite side of ring pipe 5 is all nested with several extruded rubber rings 6 in front-back equidistance, the periphery of opposite side of ring pipe 5 is all nested fixed with limit ring band 7, the outside of ring pipe 5 is nested with sliding cylinder 8, the outer edge of opposite side of ring pipe 5 is all fixedly connected with baffle ring 12, the opposite side of baffle ring 12 is all embedded in the inner wall of sliding cylinder 8 and with its front-back direction one-side sliding limit, the outside of extruded rubber ring 6 is all embedded in the inner wall of sliding cylinder 8 and with its embedded fixed, sliding groove is reserved between extruded rubber ring 6 and limit ring band 7 of sliding cylinder 8, the opposite side of sliding cylinder 8 is all fixedly connected with sleeve hoop 9, the opposite side of sleeve hoop 9 is all fixedly connected with inner connection port 10, the inside of inner connection port 10 is all relative to ring pipe 5 and nylon long conduit 1 and keeps coaxial communication, the outer surface of extruded rubber ring 6 and the inner surface of sliding cylinder 8 are all covered with a layer of sliding film, ensure that the whole hose assembly can be aimed at accidental pulling different tensile strength and carry out the automatic sliding buffer protection or just slightly deformed to keep the flow stability of whole hose hydraulic passage.

[0024] The inner edge of opposite side of inner connection port 10 is all fixedly connected with sealing gasket ring 11, the inside of sealing gasket ring 11 is all correspondingly extruded and attached with the outer connector of inner connection port 10, the opposite side of inner connection port 10 is all fixedly connected with a buffer pad, the opposite side of buffer pad is all correspondingly extruded and limited to stop with the outer connector of inner connection port 10, ensure the sealing stability of inner connection port and outer connector connection.

[0025] The outside of sliding cylinder 8 is fixed with rubber sleeve, the outer surface of rubber sleeve is attached with a layer of antiskid stripe, it is convenient to hold and calibrate butt joint.

[0026] The side adjacent to nylon long conduit 1, ring pipe 5 and butt joint port is all clamped with sealing washer, the front and back sides of sealing washer are all correspondingly extruded and attached with nylon long conduit 1, ring pipe 5 and butt joint port and sealed, ensure the sealing stability of hydraulic passage.

[0027] Working principle: In the present invention, a ring tube 5 and a slide cylinder 8 are respectively arranged between the nylon long tube 1 and the docking port and a sliding nested combination is performed. First, an extrusion rubber ring 6 is arranged on the outer side of the ring tube 5 close to the end of the nylon long tube 1 to perform a certain degree of sliding limit protection, and then a limit ring belt 7 is arranged on the outer side of the ring tube 5 away from the end of the nylon long tube 1 to perform anti-slip limit protection, so that when the nylon long tube 1 is accidentally pulled, it will first pull the ring tube 5 and the slide cylinder 8 to slide under force. When the force exceeds the compressive limit of the extrusion rubber ring 6, it The force will cause the ring tube 5 and the slide cylinder 8 to slide relative to each other until the extrusion rubber ring 6 contacts and stops sliding with the limit ring 7. When the force does not exceed the compressive limit of the extrusion rubber ring 6, it will only cause the extrusion rubber ring 6 to deform slightly. The compressive force limit of the extrusion rubber ring 6 corresponds to the minimum tensile strength setting after the docking port and the external joint are threaded together, ensuring that the entire hose can automatically perform sliding buffer protection against different tensile strengths caused by accidental pulling after assembly, or only slightly deform to maintain the flow stability of the hydraulic passage 4 of the entire hose.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A flame retardant nylon hydraulic brake hose, comprising a long nylon conduit (1), characterized in that: The inner side of the long nylon tube (1) is provided with an anti-seepage layer (2), the outer side of the long nylon tube (1) is provided with a flame retardant layer (3), the inner side of the anti-seepage layer (2) is provided with a hydraulic passage (4) in the front and rear directions, the front and rear ends of the long nylon tube (1) are symmetrically fixed with ring tubes (5), the outer periphery of the opposite side of the ring tube (5) is equidistantly nested with a plurality of circles of extruded rubber rings (6), the outer periphery of the opposite side of the ring tube (5) is nested with a limited ring belt (7), and the outer periphery of the ring tube (5) is fixed. A slide (8) is nested on the outside, and the outside of the extruded rubber ring (6) is correspondingly embedded in the inner wall of the slide (8) and fixed therewith. The slide (8) has a sliding groove reserved between the extruded rubber ring (6) and the limiting ring band (7). The opposite side of the slide (8) is fixedly connected to a hoop (9), and the opposite side of the hoop (9) is fixedly connected to an internal port (10). The inner side of the internal port (10) maintains coaxial communication with the ring tube (5) and the nylon long tube (1).

2. The flame-retardant nylon hydraulic brake hose according to claim 1, characterized in that: A sealing ring (11) is fixedly connected to the inner edge of the opposite side of the internal port (10), and the inner side of the sealing ring (11) is pressed and fitted with the outer joint of the internal port (10).

3. The flame-retardant nylon hydraulic brake hose according to claim 1, characterized in that: A retaining ring (12) is fixedly connected to the outer edge of the opposite side of the ring tube (5), and the opposite side of the retaining ring (12) is correspondingly embedded in the inner wall of the slide cylinder (8) and is unilaterally slidably limited in the front-rear direction thereof.

4. The flame-retardant nylon hydraulic brake hose according to claim 1, characterized in that: A rubber sleeve is fixed around the outer side of the slide cylinder (8), and the outer side of the rubber sleeve is covered with a layer of anti-skid strips.

5. The flame-retardant nylon hydraulic brake hose according to claim 1, characterized in that: The outer side of the flame retardant layer (3) is covered with a waterproof membrane.

6. The flame-retardant nylon hydraulic brake hose according to claim 1, characterized in that: The adjacent sides of the long nylon tube (1), the annular tube (5) and the docking port are all jacketed with sealing gaskets, and the front and rear sides of the sealing gaskets are correspondingly squeezed and sealed with the long nylon tube (1), the annular tube (5) and the docking port.

7. The flame-retardant nylon hydraulic brake hose according to claim 1, characterized in that: The outer surface of the extrusion rubber ring (6) and the inner surface of the sliding cylinder (8) are both covered with a layer of lubricating film.

8. The flame-retardant nylon hydraulic brake hose according to claim 1, characterized in that: A buffer pad is fixedly connected to the opposite side of the internal connection port (10), and the opposite side of the buffer pad corresponds to the external joint of the internal connection port (10) for extrusion, limiting and stopping.

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