Brake pneumatic tube assembly

Abstract

The utility model discloses a brake pneumatic tube assembly, and belongs to the technical field of brake pneumatic tube assemblies, and the technical scheme is characterized in that the brake pneumatic tube assembly comprises a brake hose which comprises a rubber inner layer, a framework layer and a rubber outer layer; the joint body is connected with the brake hose; the nut sleeve is movably connected with the joint body; wherein the connector body is provided with an inserting part, the inserting part is inserted into the brake hose, the brake hose is provided with a locking piece and a bonding part for bonding the locking piece with the framework layer, the bonding part is provided with a bonding groove, the locking piece is provided with a threaded part, and the threaded part is matched with the nut sleeve. The connection stability between the joint body and the brake hose is improved.

Description

Technical Field

[0001] This application belongs to the field of hose technology, and in particular relates to a brake air pressure hose assembly. Background Technology

[0002] Pneumatic braking uses compressed air as the braking source. The brake pedal controls the compressed air to enter the brake, converting the air pressure into mechanical thrust to brake rotating components. Therefore, the biggest advantage of pneumatic braking is its ease of operation and ability to provide large braking torque. Another advantage is its unique superiority in achieving asynchronous braking distribution on long-wheelbase, multi-axle vehicles and vehicles towing semi-trailers or trailers. Therefore, pneumatic braking is generally only used on medium and heavy-duty vehicles.

[0003] A Chinese patent with publication number CN213655945U discloses a novel pneumatic brake hose, comprising a rubber layer and a resin layer disposed inside the rubber layer.

[0004] While the aforementioned brake hose improves the smoothness and braking response speed of the air braking system, connecting the hose to the joint is relatively difficult, and improvements are needed to address this. Utility Model Content

[0005] The purpose of this application is to address the aforementioned technical problems by providing a brake air pressure hose assembly that improves the connection stability between the connector body and the brake hose.

[0006] This application provides a brake air pressure hose assembly, including:

[0007] Brake hose, comprising an inner rubber layer, a reinforcing layer, and an outer rubber layer;

[0008] The connector body connects to the brake hose;

[0009] The nut sleeve is movably connected to the connector body;

[0010] The connector body is provided with a plug-in part, which is inserted into the brake hose. The brake hose is provided with a locking plate. The locking plate is bonded to the skeleton layer with an adhesive part. The adhesive part is provided with an adhesive groove. The locking plate is provided with a threaded part, which is adapted to the nut sleeve.

[0011] The brake hose is connected to the connector body. The inner rubber layer, the skeleton layer, and the outer rubber layer are integrally connected to form the brake hose. The locking plate is bonded to the skeleton layer. By placing the skeleton layer in the bonding groove and then bonding, the connection stability between the locking plate and the skeleton layer is improved. The locking plate has a flange, and the inner rubber layer and the outer rubber layer extend to the flange. The nut sleeve is movably connected to the connector body. After the plug is inserted into the brake hose, the threaded part of the locking plate and the nut sleeve are fixed by a threaded connection, thereby connecting the brake hose to the connector body.

[0012] Further, an elastic sealing pad is arranged between the joint body and the locking sheet.

[0013] The elastic sealing pad increases the sealing performance between the joint body and the locking sheet, and the elastic sealing pad is made of rubber or silica gel material, and further improves the connection stability between the joint body, the nut sleeve and the locking sheet.

[0014] Further, the plug-in part is provided with an expansion area.

[0015] After the plug-in part is inserted into the brake hose, the expansion area in the plug-in part is deformed, the expansion area abuts against the inner wall surface of the brake hose, and the connection stability and the sealing performance between the plug-in part and the brake hose are further improved.

[0016] Further, the skeleton layer comprises:

[0017] A first composite wire bundle;

[0018] A second composite wire bundle;

[0019] The first composite wire bundle and the second composite wire bundle are wound in opposite directions, and the first composite wire bundle and the second composite wire bundle are twisted by glass fibers and carbon fibers.

[0020] The first composite wire bundle and the second composite wire bundle are twisted by glass fibers and carbon fibers, so that the first composite wire bundle and the second composite wire bundle have high insulation, heat resistance, corrosion resistance, high mechanical strength and good tensile effect, increase the strength of the brake hose, prevent the brake hose from being severely bent and deformed by external force, and the first composite wire bundle and the second composite wire bundle are wound in two layers in an upward and downward manner, or wound in an upward and downward manner, so that the overall skeleton layer structure is stable.

[0021] Further, the nut sleeve is provided with a pressing part.

[0022] The pressing part is integrally connected with the nut sleeve, the pressing part is deformed to abut against the brake hose, the connection tightness between the nut sleeve and the brake hose is further improved, and the brake hose is further pressed by the pressing part and the expansion area.

[0023] Further, it further comprises:

[0024] A protective sleeve is arranged at the connection between the brake hose and the pressing part.

[0025] The protective sleeve is made of a heat shrink tube, the protective sleeve is arranged at the connection between the brake hose and the pressing part, the connection tightness between the brake hose and the pressing part is further improved, and the appearance of the connection is improved.

[0026] The beneficial effects of the present application are:

[0027] 1. The locking piece and the framework layer are bonded, the framework layer is placed in the bonding groove, and then bonding is performed, thereby improving the connection stability between the locking piece and the framework layer.

[0028] 2. The bulging area abuts against the inner wall surface of the brake hose, thereby further improving the connection stability and sealing performance between the insertion part and the brake hose.

[0029] 3. The first composite wire bundle and the second composite wire bundle make the framework layer have high structural strength, thereby improving the service life of the brake hose. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic diagram of the air pressure pipe assembly of the present application;

[0031] Figure 2 is a structural schematic diagram of the joint body of the present application;

[0032] Figure 3 is an enlarged view of A of the present application; Figure 1

[0033] In the drawings, 100, brake hose; 110, rubber inner layer; 120, framework layer; 121, first composite wire bundle; 122, second composite wire bundle; 130, rubber outer layer; 200, joint body; 210, insertion part; 211, bulging area; 300, nut sleeve; 310, pressing part; 400, locking piece; 410, bonding part; 420, bonding groove; 430, threaded part; 500, elastic sealing gasket; 600, protective sleeve. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0035] ​The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of a kind and do not limit the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the objects before and after are in an "or" relationship.

[0036] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, specific embodiments and application scenarios.

[0037] Embodiment 1:

[0038] As shown in Figure 1 , Figure 2 , the present application provides a brake air pressure pipe assembly, comprising:

[0039] The brake hose 100 comprises a rubber inner layer 110, a skeleton layer 120, and a rubber outer layer 130.

[0040] The joint body 200 is connected with the brake hose 100.

[0041] The nut sleeve 300 is movably connected with the joint body 200.

[0042] The joint body 200 is provided with a plug-in part 210, which is plugged into the brake hose 100. The brake hose 100 is provided with a locking sheet 400, and the locking sheet 400 is bonded to the bonding part 410 of the skeleton layer 120. The bonding part 410 is provided with a bonding groove 420, and the locking sheet 400 is provided with a threaded part 430, which is adapted to the nut sleeve 300.

[0043] The brake hose 100 is connected with the joint body 200, and the rubber inner layer 110, the skeleton layer 120 and the rubber outer layer 130 are integrally connected to form the brake hose 100. The locking sheet 400 is bonded to the skeleton layer 120. The skeleton layer 120 is placed in the bonding groove 420 and then bonded, thereby improving the connection stability between the locking sheet 400 and the skeleton layer 120. The locking sheet 400 has a flange, and the rubber inner layer 110 and the rubber outer layer 130 extend to the flange. The nut sleeve 300 is movably connected with the joint body 200. After the plug-in part 210 is plugged into the brake hose 100, the threaded part 430 of the locking sheet 400 is connected and fixed with the nut sleeve 300 through a threaded pair, thereby connecting the brake hose 100 with the joint body 200.

[0044] Furthermore, an elastic sealing gasket 500 is provided between the connector body 200 and the locking piece 400.

[0045] The elastic sealing gasket 500 increases the sealing performance between the connector body 200 and the locking plate 400. The elastic sealing gasket 500 is made of rubber or silicone, and the connection stability between the connector body 200, the nut sleeve 300 and the locking plate 400 is further improved by the elastic sealing gasket 500.

[0046] Furthermore, the insertion portion 210 is provided with an bulging region 211.

[0047] After the connector 210 is inserted into the brake hose 100, the expansion area 211 in the connector 210 is deformed, so that the expansion area 211 abuts against the inner wall surface of the brake hose 100, thereby further improving the connection stability and sealing between the connector 210 and the brake hose 100.

[0048] Example 2:

[0049] like Figure 1 , Figure 3 As shown, this application embodiment provides a brake air pressure pipe assembly, which, in addition to including the above-mentioned technical features, further includes the skeleton layer 120 comprising:

[0050] First composite wire harness 121;

[0051] Second composite wire harness 122;

[0052] The first composite wire harness 121 and the second composite wire harness 122 are wound in opposite directions, and both the first composite wire harness 121 and the second composite wire harness 122 are made of glass fiber and carbon fiber twisted together.

[0053] Both the first composite wire harness 121 and the second composite wire harness 122 are made of glass fiber and carbon fiber twisted together, which gives the first composite wire harness 121 and the second composite wire harness 122 high insulation, heat resistance, corrosion resistance, high mechanical strength and good tensile strength, thereby increasing the strength of the brake hose 100 and preventing the brake hose 100 from being severely bent and deformed by external force. The first composite wire harness 121 and the second composite wire harness 122 are wound separately in two layers, which is convenient for winding, or wound in a one-on-one winding manner, so that the overall skeleton layer 120 structure is stable.

[0054] Example 3:

[0055] like Figure 1 , Figure 2 As shown, this application embodiment provides a brake air pressure pipe assembly, which, in addition to including the above-mentioned technical features, further includes a pressing part 310 on the nut sleeve 300.

[0056] The pressing part 310 is integrally connected with the nut sleeve 300, and the pressing part 310 is deformed to abut against the brake hose 100, so as to further improve the connection tightness between the nut sleeve 300 and the brake hose 100, and the brake hose 100 is further pressed by the pressing part 310 and the bulging area 211.

[0057] Further, the application further comprises:

[0058] The protective sleeve 600 is arranged at the connection between the brake hose 100 and the pressing part 310.

[0059] The protective sleeve 600 is a heat shrink tube, and the protective sleeve 600 is arranged at the connection between the brake hose 100 and the pressing part 310, so as to further improve the connection tightness between the brake hose 100 and the pressing part 310, and improve the appearance of the connection.

[0060] It should be noted that, in the present text, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such a process, method, article or device. Without more limitations, the element defined by the phrase "comprising a" does not exclude the presence of other identical elements in the process, method, article or device that includes the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but can also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0061] The embodiments of the application are described above in combination with the drawings, but the application is not limited to the above specific embodiments, and the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the application without departing from the scope of the application and the scope protected by the claims.

Claims

1. A brake air pressure tube assembly, characterized by, The application relates to a brake hose (100) and a connecting structure of the brake hose (100). The brake hose (100) comprises a rubber inner layer (110), a skeleton layer (120) and a rubber outer layer (130). The connecting structure comprises a connector body (200) connected with the brake hose (100), a nut sleeve (300) movably connected with the connector body (200). The connector body (200) is provided with a plug-in part (210) which is plugged into the brake hose (100), the brake hose (100) is provided with a locking sheet (400), the locking sheet (400) is bonded with a bonding part (410) of the skeleton layer (120), the bonding part (410) is provided with a bonding groove (420), the locking sheet (400) is provided with a threaded part (430) which is matched with the nut sleeve (300). An elastic sealing gasket (500) is arranged between the connector body (200) and the locking sheet (400).

2. The brake air pressure tube assembly of claim 1, wherein, The plug-in part (210) is provided with an expansion area (211).

3. The brake air pressure tube assembly of claim 2, wherein, The skeleton layer (120) comprises:

4. The brake air pressure tube assembly of claim 3, wherein, A first composite wire bundle (121); A second composite wire bundle (122); The first composite wire bundle (121) and the second composite wire bundle (122) are oppositely wound, and the first composite wire bundle (121) and the second composite wire bundle (122) are twisted by glass fibers and carbon fibers. The nut sleeve (300) is provided with a pressing part (310).

5. The brake air pressure tube assembly of claim 4, wherein, The application further relates to a protective sleeve (600) arranged at the connecting position between the brake hose (100) and the pressing part (310).

6. The brake air pressure tube assembly of claim 5, wherein, The application relates to a brake hose (100) and a connecting structure of the brake hose (100). The brake hose (100) comprises a rubber inner layer (110), a skeleton layer (120) and a rubber outer layer (130). The connecting structure comprises a connector body (200) connected with the brake hose (100), a nut sleeve (300) movably connected with the connector body (200). The connector body (200) is provided with a plug-in part (210) which is plugged into the brake hose (100), the brake hose (100) is provided with a locking sheet (400), the locking sheet (400) is bonded with a bonding part (410) of the skeleton layer (120), the bonding part (410) is provided with a bonding groove (420), the locking sheet (400) is provided with a threaded part (430) which is matched with the nut sleeve (300). An elastic sealing gasket (500) is arranged between the connector body (200) and the locking sheet (400). The plug-in part (210) is provided with an expansion area (211). The skeleton layer (120) comprises: A first composite wire bundle (121); A second composite wire bundle (122); The first composite wire bundle (121) and the second composite wire bundle (122) are oppositely wound, and the first composite wire bundle (121) and the second composite wire bundle (122) are twisted by glass fibers and carbon fibers. The nut sleeve (300) is provided with a pressing part (310). The application further relates to a protective sleeve (600) arranged at the connecting position between the brake hose (100) and the pressing part (310).

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