Brake pipe via hole assembly and vehicle brake system

Abstract

The utility model discloses a brake pipe through hole assembly and a vehicle braking system, and relates to the technical field of pipe system sealing, the brake pipe through hole assembly comprises a support, a sealing piece and a two-way piece, and the support is provided with a mounting hole and is used for being connected with a vehicle body. The sealing piece is arranged on the side, used for being attached to a vehicle body, of the support and provided with a sealing hole, the sealing hole is communicated with the mounting hole so that the support and the vehicle body can be connected in a sealed mode at the position of the mounting hole, and the two-way piece is arranged on the support, penetrates through the mounting hole and the sealing hole and is used for penetrating through a vehicle body through hole to achieve connection of brake pipelines inside and outside the vehicle body. The brake pipe via hole assembly can serve as a part of a vehicle braking system to be installed on a vehicle body, connection between a vehicle body internal pipeline and a vehicle body external pipeline of the vehicle braking system is achieved, and the problems caused by poor sealing performance such as water leakage and sound leakage are effectively solved through the arrangement of the sealing piece on the support. And the vehicle body and other parts of the vehicle braking system are convenient to disassemble and assemble.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of pipe system sealing, more particularly to a brake pipe through hole assembly and a vehicle brake system. BACKGROUND

[0002] The brake master cylinder is arranged in the passenger cabin, and the brake is located outside the passenger cabin, therefore, the brake pipe must pass through the through hole on the vehicle body to realize the connection of the brake master cylinder and the brake. In the prior art, when the brake pipe passes through the through hole on the vehicle body, a rubber sealing gasket is additionally arranged on the brake pipe, and the rubber sealing gasket is clamped on the through hole on the vehicle body. However, this scheme has some problems.

[0003] Specifically, the sealing gasket carried on the brake pipe does not tightly cooperate with the vehicle body, which easily leads to the occurrence of water leakage, and the sound insulation effect is poor, and the installation is relatively difficult. More seriously, under the condition of long-term vibration, the sealing gasket may fall off, in addition, if the sealing gasket contacts substances such as sewage and dust which have a corrosive effect on the sealing gasket, the sealing property will be weakened, and the problems of water leakage and poor sound insulation effect will be further aggravated.

[0004] Therefore, how to improve the poor sealing reliability of the brake pipe and the vehicle body has become a technical problem to be solved by the person skilled in the art. SUMMARY

[0005] Therefore, the utility model discloses a brake pipe through hole assembly to improve the poor sealing reliability of the brake pipe and the vehicle body.

[0006] Another purpose of the utility model is to provide a vehicle brake system comprising the brake pipe through hole assembly.

[0007] To achieve the above purpose, the utility model provides the following technical scheme.

[0008] A brake pipe through hole assembly comprises:

[0009] A support is provided with a mounting hole and is used for being connected with a vehicle body;

[0010] A sealing element is arranged on the side of the support used for being attached to the vehicle body and is provided with a sealing hole, and the sealing hole is communicated with the mounting hole;

[0011] A two-way element is arranged on the support and passes through the mounting hole and the sealing hole, and the two-way element has a first pipe opening used for being connected with an internal pipeline of the vehicle body and a second pipe opening used for being connected with an external pipeline of the vehicle body.

[0012] Optionally, in the brake pipe through-hole assembly, the main body of the two-way piece is provided with a brake fluid channel for the flow of brake fluid, a first end of the brake fluid channel is in communication with the first pipe opening, and a second end of the brake fluid channel is in communication with the second pipe opening.

[0013] The diameter of the brake fluid channel is the same as the inner diameters of the vehicle interior pipeline and the vehicle exterior pipeline, the inner diameter of the first pipe opening is larger than the diameter of the brake fluid channel, and the inner diameter of the second pipe opening is larger than the diameter of the brake fluid channel.

[0014] Optionally, in the brake pipe through-hole assembly, an end of the vehicle interior pipeline is provided with a trumpet joint for connecting with the first pipe opening, and an inner circle of an annular stepped surface formed between the first pipe opening and the brake fluid channel extends towards the first pipe opening, so that an end of the first pipe opening close to the brake fluid channel forms a first tapered positioning part matched with the trumpet joint; and / or,

[0015] An end of the vehicle exterior pipeline is provided with a trumpet joint for connecting with the second pipe opening, and an inner circle of an annular stepped surface formed between the second pipe opening and the brake fluid channel extends towards the second pipe opening, so that an end of the second pipe opening close to the brake fluid channel forms a second tapered positioning part matched with the trumpet joint.

[0016] Optionally, in the brake pipe through-hole assembly, a positioning ring is arranged on the outer wall of the two-way piece, and one side end face of the positioning ring is attached to and connected with the side of the bracket away from the vehicle body; and / or,

[0017] The side of the bracket for attaching to the vehicle body is provided with an embedded groove, the sealing member is arranged in the embedded groove, and the embedded groove is in communication with the mounting hole and the sealing hole.

[0018] Optionally, in the brake pipe through-hole assembly, the first end of the bracket is provided with a first connecting part, and the second end of the bracket is provided with a second connecting part, the first connecting part and the second connecting part are arranged in a staggered manner relative to the axis of the bracket, and are both used for connecting with the vehicle body.

[0019] Optionally, in the brake pipe through-hole assembly, the surface of the first connecting part and the second connecting part for facing the vehicle body is a first surface, the surface of the bracket for facing the vehicle body is a second surface, and the surface of the sealing member for facing the vehicle body is a third surface, the first surface, the second surface and the third surface are parallel to each other, and the first surface is located between the second surface and the third surface.

[0020] Optionally, in the brake pipe through-hole assembly, an included angle between the axis of the first pipe opening and the axis of the second pipe opening is 80-100 degrees or 90 degrees.

[0021] Optionally, in the brake pipe through-hole assembly, the sealing member is a rubber ring vulcanized on the bracket, or the sealing member is a sealing gasket.

[0022] Optionally, in the brake pipe through-hole assembly, the two-way member is welded to the bracket; and / or,

[0023] The bracket is detachably connected to the vehicle body by bolts.

[0024] A vehicle brake system comprises a vehicle body and the brake pipe through-hole assembly.

[0025] The brake pipe through-hole assembly comprises a bracket, a sealing member and a two-way member. The bracket is provided with a mounting hole and is used to be connected to the vehicle body to serve as a mounting base for other components. The sealing member is arranged on the side of the bracket that is used to be attached to the vehicle body and is provided with a sealing hole. The sealing hole is in communication with the mounting hole to enable the sealing connection between the bracket and the vehicle body at the mounting hole. The two-way member is arranged on the bracket and passes through the mounting hole and the sealing hole. The two-way member is used to pass through the through hole of the vehicle body to realize the connection between the brake pipes inside and outside the vehicle body. Specifically, the two-way member is provided with a first pipe opening used to be connected to the pipeline inside the vehicle body and a second pipe opening used to be connected to the pipeline outside the vehicle body.

[0026] Compared with the prior art, the brake pipe through-hole assembly can be installed on the vehicle body as a part of the vehicle brake system and realize the connection between the pipeline inside the vehicle body and the pipeline outside the vehicle body. The sealing member arranged on the bracket effectively avoids the problems caused by poor sealing performance such as water leakage and sound leakage. The brake pipe through-hole assembly is convenient to disassemble and assemble with other components of the vehicle brake system and avoids the easy movement of the brake pipe caused by the direct penetration of the brake pipe through the through hole of the vehicle body.

[0027] The vehicle brake system comprises the vehicle body and any one of the brake pipe through-hole assemblies. The brake pipe through-hole assembly is arranged on the vehicle body. Since the brake pipe through-hole assembly has the above-mentioned structure and beneficial effects, other structures are the same as those of the prior art and will not be described herein. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0029] Figure 1 The front view of the brake pipe via-hole assembly disclosed in the embodiments of the present application is disclosed.

[0030] Figure 2 The side view of the brake pipe via-hole assembly disclosed in the embodiments of the present application is disclosed.

[0031] Figure 3 The top view of the brake pipe via-hole assembly disclosed in the embodiments of the present application is disclosed.

[0032] Figure 4 The axonometric view of the brake pipe via-hole assembly disclosed in the embodiments of the present application at a first angle is disclosed.

[0033] Figure 5 The axonometric view of the brake pipe via-hole assembly disclosed in the embodiments of the present application at a second angle is disclosed.

[0034] Reference signs:

[0035] 100 - bracket; 101 - embedded groove; 110 - first connecting part; 111 - first connecting hole; 120 - second connecting part; 121 - second connecting hole;

[0036] 200 - two-way piece; 201 - brake fluid channel; 210 - positioning ring;

[0037] 300 - vehicle body internal pipeline; 310 - vehicle body external pipeline. DETAILED DESCRIPTION

[0038] The core of the present application is to disclose a brake pipe via-hole assembly to improve the poor sealing reliability problem of the brake pipe and the vehicle body.

[0039] Another core of the present application is to disclose a vehicle brake system comprising the above brake pipe via-hole assembly.

[0040] Hereinafter, the embodiments will be described with reference to the accompanying drawings. In addition, the embodiments shown below do not have any limiting effect on the utility model content recited in the claims. In addition, the entire content of the configuration represented in the following embodiments is not limited to what is necessary as a solution to the utility model recited in the claims. Note that, for the convenience of description, only the parts related to the utility model are shown in the drawings. In the case of no conflict, the embodiments in the utility model and the features in the embodiments can be combined with each other.

[0041] In combination Figures 1-5 The brake pipe through-hole assembly disclosed in the embodiments of the utility model comprises a bracket 100, a sealing piece and a two-way piece 200. The bracket 100 is provided with a mounting hole and is used for being connected with a vehicle body to serve as a mounting basis for other components. The sealing piece is arranged on the side of the bracket 100 that is used for being attached with the vehicle body and is provided with a sealing hole. The sealing hole is in communication with the mounting hole to enable the sealing connection of the bracket 100 at the mounting hole with the vehicle body. The two-way piece 200 is arranged on the bracket 100 and passes through the mounting hole and the sealing hole. Meanwhile, the two-way piece 200 is used for passing through a through hole of the vehicle body to realize the connection of the internal pipeline 300 of the vehicle body with the external pipeline 310 of the vehicle body. Specifically, the two-way piece 200 has a first pipe opening used for being connected with the internal pipeline 300 of the vehicle body and a second pipe opening used for being connected with the external pipeline 310 of the vehicle body.

[0042] Compared with the prior art, the brake pipe through-hole assembly disclosed in the embodiments of the utility model can be installed on the vehicle body as a part of the vehicle braking system and realize the connection between the internal pipeline 300 of the vehicle body and the external pipeline 310 of the vehicle body of the vehicle braking system. Meanwhile, the arrangement of the sealing piece on the bracket 100 effectively avoids the problems caused by poor sealing performance such as water leakage and sound leakage. Moreover, the assembly and disassembly of the vehicle body and other components of the vehicle braking system are facilitated. Also, the easy movement caused by the direct passing of the brake pipeline through the through hole of the vehicle body in the prior art is avoided.

[0043] As can be understood by those skilled in the art, according to the structure form of the actually connected brake pipeline, that is, according to the specific structure form of the internal pipeline 300 of the vehicle body and the external pipeline 310 of the vehicle body, the structure form of the first pipe opening and the second pipe opening is adapted to them respectively, and the structure of the first pipe opening and the second pipe opening can be the same or different. For example, in some embodiments, the two-way piece 200 and the internal pipeline 300 of the vehicle body and the external pipeline 310 of the vehicle body can all be connected by using a conventional quick-release joint.

[0044] The main body part of the two-way piece 200 is provided with a passage for the flow of brake fluid (hydraulic oil used in the braking system of an automobile and other vehicles, which is responsible for transmitting pressure in the braking system to make the brake work). Defining the passage as a brake fluid passage 201, the first end of the brake fluid passage 201 is connected with and in communication with the first pipe opening, and the second end of the brake fluid passage 201 is connected with and in communication with the second pipe opening.

[0045] In an embodiment, the diameter of the brake fluid passage 201 is the same as the inner diameter of the inner pipe 300 and the outer pipe 310, the inner diameter of the first pipe opening is larger than the diameter of the brake fluid passage 201, and the inner diameter of the second pipe opening is larger than the diameter of the brake fluid passage 201, so that the inner pipe 300 and the outer pipe 310 can be respectively installed into the first pipe opening and the second pipe opening, thereby achieving reliable connection while reducing fluid leakage.

[0046] Further, in combination with Figure 2 In an embodiment, the end of the inner pipe 300 is provided with a bell mouth joint (i.e. flared joint) for connecting with the first pipe opening, and in correspondence with the bell mouth joint, the inner circle of the annular stepped surface formed between the first pipe opening and the brake fluid passage 201 extends towards the first pipe opening, so that the end of the first pipe opening close to the brake fluid passage 201 forms a first tapered positioning portion corresponding to the bell mouth joint.

[0047] Correspondingly, when the end of the outer pipe 310 is provided with a bell mouth joint for connecting with the second pipe opening, the inner circle of the annular stepped surface formed between the second pipe opening and the brake fluid passage 201 extends towards the second pipe opening, so that the end of the second pipe opening close to the brake fluid passage 201 forms a second tapered positioning portion corresponding to the bell mouth joint.

[0048] The positioning and cooperation of the bell mouth joint and the first and second tapered positioning portions can effectively avoid fluid leakage and facilitate positioning and installation. The taper of the first and second tapered positioning portions can be set to 45°.

[0049] As understood by those skilled in the art, the structure of the tapered positioning portion and the bell mouth joint can also be interchanged, i.e. the inner circle of the annular stepped surface formed between the first pipe opening and the brake fluid passage 201 extends towards the brake fluid passage 201, so that the first pipe opening and the brake fluid passage 201 can gradually change in size through the annular stepped surface, and the end joint of the inner pipe 300 has a chamfer adapted to the annular stepped surface. Correspondingly, the inner circle of the annular stepped surface formed between the second pipe opening and the brake fluid passage 201 extends towards the brake fluid passage 201, so that the second pipe opening and the brake fluid passage 201 gradually change in size through the annular stepped surface, and the end joint of the outer pipe 310 has a chamfer adapted to the annular stepped surface.

[0050] It can be understood that in the above embodiment, the two-way piece 200 and the vehicle body internal pipeline 300 and the vehicle body external pipeline 310 can be connected by threads, that is, the side wall of the first pipe opening and the second pipe opening is provided with an internal thread, and the end joint of the vehicle body internal pipeline 300 and the vehicle body external pipeline 310 is provided with an external thread matched with the internal thread.

[0051] In an embodiment, the outer wall of the first pipe opening and the second pipe opening is provided with an external thread, and the end joint of the vehicle body internal pipeline 300 and the vehicle body external pipeline 310 is provided with an internal thread and is threadedly sleeved on the first pipe opening and the second pipe opening, respectively.

[0052] In order to facilitate the installation of the two-way piece 200 and the support 100, a positioning ring 210 is arranged on the outer wall of the two-way piece 200, the positioning ring 210 is of an integral structure with the two-way piece 200, one side end surface of the positioning ring 210 is attached to and connected with the side of the support 100 away from the vehicle body, so as to realize the positioning of the two-way piece 200 and the support 100 and increase the connection area of the two-way piece 200 and the support 100.

[0053] In order to facilitate the installation of the sealing piece and the support 100, in an embodiment, the side of the support 100 for attaching to the vehicle body is provided with an embedded groove 101, the sealing piece is arranged in the embedded groove 101, and the embedded groove 101 is in communication with the mounting hole and the sealing hole.

[0054] In order to realize the reliable fixing of the support 100 and the vehicle body, the support 100 is of a whole rectangular plate structure, the first end of the support 100 is provided with a first connecting part 110, the second end of the support 100 is provided with a second connecting part 120, the first connecting part 110 and the second connecting part 120 are arranged in a staggered manner with respect to the (central) axis of the support 100 and are both used for connecting with the vehicle body, that is, the two diagonal positions of the support 100 are connected with the vehicle body, and through the staggered arrangement of the first connecting part 110 and the second connecting part 120, the mass of the brake pipe through hole assembly as a whole can be reduced while ensuring the reliable connection of the support 100 and the vehicle body, and the cost can be reduced.

[0055] Specifically, the first connecting part 110 and the second connecting part 120 can be respectively provided with a first connecting hole 111 and a second connecting hole 121, and the first connecting part 110 and the second connecting part 120 can be detachably fixed with the vehicle body by bolts.

[0056] Further optimization scheme, if the surface of the first connecting part 110 and the second connecting part 120 for facing the vehicle body is defined as a first surface, the surface of the support 100 for facing the vehicle body is defined as a second surface, and the surface of the sealing piece for facing the vehicle body is defined as a third surface, the first surface, the second surface and the third surface are parallel, and the first surface is located between the second surface and the third surface.

[0057] In the installation, by the first surface and the body fit and press tightly, can make the sealing element is reliably sealed and press tightly arranged between the bracket 100 and the body, avoid the emergence of leakage.

[0058] The skilled in the art can understand that the brake pipe through hole assembly is used to realize the connection between the brake pipe inside the vehicle body and the brake pipe at the bottom of the vehicle body (i.e. the above-mentioned vehicle body internal pipeline 300 and vehicle body external pipeline 310), so the (central) axes of the first pipe and the second pipe are usually at an angle to reduce the bending of the brake pipe itself. The angle between the axes of the first pipe and the second pipe is usually 90° (80°-100°), or the angle is adjusted according to the actual situation, and the brake fluid passage 201 is rounded and smoothly transitions at the bending part.

[0059] In order to ensure the reliability of the structure, the two-way piece 200 is welded to the bracket 100 and forms an integrated structure. The sealing element and the bracket 100 can be an integrated structure or a split structure. When it is an integrated structure, the sealing element can be vulcanized to the bracket 100, and when it is a split structure, Figure 4 , the sealing element can be an elastic rubber material gasket (according to the actual situation, the shape of the gasket can be a circular ring or a rectangular ring, and the shape of the embedding groove 101 is correspondingly matched) independently arranged on the bracket 100. This kind of split structure facilitates the disassembly and replacement of the sealing element. The sealing performance of the brake pipe through hole assembly disclosed in the embodiment is good, and even under vibration conditions or in the case of installation errors, the sealing effect will not be weakened.

[0060] In combination Figure 1 , two two-way pieces 200 are usually integrated on one bracket 100 to respectively communicate with the liquid inlet pipe and the liquid return pipe of the brake circuit.

[0061] The vehicle brake system disclosed in the utility model comprises a vehicle body and any one of the brake pipe through hole assemblies, and the brake through hole assembly is arranged on the vehicle body. Since the brake pipe through hole assembly has the above-mentioned structures and advantages, the other structures refer to the prior art, and will not be repeated here.

[0062] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. The specific techniques in some embodiments can be combined with other embodiments unless explicitly excluded, either in whole or in part. Accordingly, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A brake pipe through-hole assembly, characterized in that: include: A bracket (100) is provided with a mounting hole and is used for connecting to a vehicle body; A sealing member is provided on a side of the bracket (100) for contact with the vehicle body and is provided with a sealing hole, the sealing hole being in communication with the mounting hole; A two-way piece (200) is provided on the bracket (100) and passes through the mounting hole and the sealing hole, and the two-way piece (200) has a first pipe opening for connecting to a pipe (300) inside the vehicle body and a second pipe opening for connecting to a pipe (310) outside the vehicle body.

2. The brake pipe through-hole assembly according to claim 1, characterized in that: The main body of the two-way piece (200) is provided with a brake fluid channel (201) for circulating brake fluid, a first end of the brake fluid channel (201) is communicated with the first pipe opening, and a second end of the brake fluid channel (201) is communicated with the second pipe opening; The diameter of the brake fluid channel (201) is the same as the inner diameters of the vehicle body internal pipeline (300) and the vehicle body external pipeline (310), the inner diameter of the first pipe opening is larger than the diameter of the brake fluid channel (201), and the inner diameter of the second pipe opening is larger than the diameter of the brake fluid channel (201).

3. The brake pipe through-hole assembly according to claim 2, characterized in that: The end of the vehicle body internal pipe (300) is provided with a bell-mouth joint for connecting to the first pipe opening, and the inner circle of the annular step surface formed between the first pipe opening and the brake fluid channel (201) extends toward the first pipe opening, so that the end of the first pipe opening close to the brake fluid channel (201) forms a first conical positioning portion that cooperates with the bell-mouth joint; and / or, The end of the vehicle body external pipe (310) is provided with a bell-mouth joint for connecting to the second pipe opening, and the inner circle of the annular step surface formed between the second pipe opening and the brake fluid channel (201) extends toward the second pipe opening, so that the end of the second pipe opening close to the brake fluid channel (201) forms a second conical positioning portion that cooperates with the bell-mouth joint.

4. The brake pipe through-hole assembly according to claim 1, characterized in that: A positioning ring (210) is provided on the outer wall of the two-way piece (200), and one end surface of the positioning ring (210) is abutted against and connected to a side of the bracket (100) facing away from the vehicle body; and / or, A mounting groove (101) is provided on one side of the bracket (100) for contacting with the vehicle body, the sealing member is provided in the mounting groove (101), and the mounting groove (101) is communicated with the mounting hole and the sealing hole.

5. The brake pipe through-hole assembly according to claim 1, characterized in that: The first end of the bracket (100) is provided with a first connecting portion (110), and the second end is provided with a second connecting portion (120); the first connecting portion (110) and the second connecting portion (120) are staggered relative to the axis of the bracket (100), and are both used for connection to a vehicle body.

6. The brake pipe through-hole assembly according to claim 5, characterized in that: The surfaces of the first connecting portion (110) and the second connecting portion (120) facing the vehicle body are the first surfaces, the surface of the bracket (100) facing the vehicle body is the second surface, and the surface of the sealing member facing the vehicle body is the third surface. The first surface, the second surface, and the third surface are parallel to each other, and the first surface is located between the second surface and the third surface.

7. The brake pipe through-hole assembly according to claim 1, characterized in that: The angle between the axes of the first pipe opening and the second pipe opening is 80°-100° or 90°.

8. The brake pipe through-hole assembly according to claim 1, wherein: The sealing member is a rubber ring vulcanized and arranged on the bracket (100), or the sealing member is a sealing gasket.

9. The brake pipe through-hole assembly according to claim 1, wherein: The two-way piece (200) is connected to the bracket (100) by welding; and / or, The bracket (100) is used for being detachably connected to the vehicle body via bolts.

10. A vehicle braking system, characterized in that: The invention comprises a vehicle body and a brake pipe through-hole assembly according to any one of claims 1 to 9, wherein the brake pipe through-hole assembly is arranged on the vehicle body.

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