阅读说明：本技术 真空管路的连接结构和汽车制动部件 (Connecting structure of vacuum pipeline and automobile brake component ) 是由 马宝玲 张桂禄 李立涛 陈朝 冯超 于 2018-07-16 设计创作，主要内容包括：本发明公开了一种真空管路的连接结构和汽车制动部件。真空管路的连接结构包括基体,具有基体入口、流通通道以及设置于流通通道上的两个基体出口；两个单向阀壳体,两个单向阀壳体的两个单向阀入口分别与两个基体出口对应连通以形成相互隔离的两个单向阀。本发明的真空管路的连接结构将现有技术中独立设置且需要单独连接的两个单向阀以及三通集成为一个零件,简化真空管路的布置,节省成本。而且本发明的真空管路的连接结构设置为基体以及两个单向阀壳体,在制造该连接结构时可以先制造基体以及单向阀壳体,然后再将单向阀壳体与基体进行连接即可,无需直接从整体上制造整个连接结构,从而降低生产制造难度。(The invention discloses a connecting structure of a vacuum pipeline and an automobile brake component. The connecting structure of the vacuum pipeline comprises a substrate, a vacuum pipeline and a vacuum pipeline, wherein the substrate is provided with a substrate inlet, a flow channel and two substrate outlets arranged on the flow channel; two check valve inlets of the two check valve housings are respectively communicated with two matrix outlets correspondingly to form two mutually isolated check valves. The connecting structure of the vacuum pipeline integrates two one-way valves and a tee joint which are independently arranged and need to be independently connected in the prior art into a part, simplifies the arrangement of the vacuum pipeline and saves the cost. The connecting structure of the vacuum pipeline is provided with the base body and the two one-way valve housings, the base body and the one-way valve housings can be manufactured firstly when the connecting structure is manufactured, and then the one-way valve housings are connected with the base body, so that the whole connecting structure does not need to be manufactured directly on the whole, and the production and manufacturing difficulty is reduced.)

1. A connecting structure of a vacuum line, comprising:

a base body (51) having a base body inlet (I), a flow channel (C) and two base body outlets (O) arranged on the flow channel (C);

two check valve inlets of the two check valve housings (52) are respectively communicated with the two base body outlets (O) correspondingly.

2. The connecting structure of vacuum line according to claim 1, wherein the check valve housing (52) has a first connecting end connected to the base body (51), the base body (51) has a second connecting end disposed at the base body outlet (O) and connected to the check valve housing (52), and the first connecting end and the second connecting end are in a concavo-convex fit.

3. The vacuum line connection structure of claim 2, wherein the first connection end and the second connection end have mating surfaces that mate with each other, the mating surfaces of the first connection end and the second connection end including tapered surfaces.

4. The connecting structure of vacuum line according to claim 3, wherein said mating surface further comprises a cylindrical surface disposed on a side of said conical surface adjacent to said base (51), said cylindrical surface being smoothly connected to said conical surface.

5. The connecting structure of vacuum line according to claim 3, wherein the first connecting end and the second connecting end are welded at their tapered surfaces.

6. The connection structure of vacuum lines according to any one of claims 1 to 5, characterized in that the two check valve housings (52) are identical in structure.

7. The connecting structure of the vacuum pipeline according to any one of claims 1 to 5, further comprising a guide post disposed in the check valve housing (52) and a valve plate sleeved on the guide post, wherein the valve plate is attached to the flange at the base outlet (O) and covers the base outlet (O), and when the pressure of the side of the valve plate close to the base (51) is greater than the pressure of the side of the valve plate far from the base (51), the valve plate is far away from the flange to allow air to flow from the base outlet into the check valve housing (52).

8. The connection structure of vacuum lines according to any one of claims 1 to 5, wherein the base body (51) further comprises a detection channel (T) communicating with the flow channel (C), the detection channel (T) being used to provide a vacuum sensor to detect the degree of vacuum of the flow channel (T).

9. The connecting structure of vacuum line according to claim 8, wherein the detection passage (T) is provided on an extension line of an intersection point of bisectors of the two substrate outlets (O).

10. A brake lining for a motor vehicle, comprising a connection structure of a vacuum line according to any one of claims 1 to 9, wherein the base body inlet (I) communicates with a vacuum booster (1), the check valve outlet of one of the two check valve housings (52) communicates with an engine intake manifold (3), and the check valve outlet of the other of the two check valve housings (52) communicates with a vacuum pump (2).

Technical Field

The invention relates to the field of auxiliary braking, in particular to a connecting structure of a vacuum pipeline and an automobile braking component.

Background

With the rapid development of the automobile industry, automobile users have higher and higher requirements on the safety performance of automobiles. In the traditional technology, the automobile assists the brake component to implement braking action by means of vacuum generated by the engine, the higher the vacuum degree is, the better the brake performance is, but along with the development of the automobile technology, the vacuum generated by the engine can not meet the requirement of each system of the automobile on vacuum, so that an electronic vacuum pump is often required to be introduced to supplement the requirement of a vacuum booster device on vacuum.

Disclosure of Invention

The invention aims to provide a connecting structure of a vacuum pipeline and an automobile braking component, so as to simplify the arrangement of the vacuum pipeline in the automobile braking component.

A first aspect of the present invention provides a connecting structure of a vacuum line, including:

a substrate having a substrate inlet, a flow channel, and two substrate outlets disposed on the flow channel;

and the inlets of the two check valves of the two check valve housings are respectively correspondingly communicated with the outlets of the two matrixes.

In some embodiments, the check valve housing has a first connecting end connected to the base body, the base body has a second connecting end disposed at the outlet of the base body and connected to the check valve housing, and the first connecting end and the second connecting end are in concave-convex fit.

In some embodiments, the first and second link ends have mating surfaces that mate with each other, the mating surfaces of the first and second link ends including tapered surfaces.

In some embodiments, the mating surface further comprises a cylindrical surface disposed on a side of the conical surface adjacent the substrate, the cylindrical surface smoothly joining the conical surface.

In some embodiments, the first and second link ends are welded at their tapered surfaces.

In some embodiments, the two check valve housings are identical in construction.

In some embodiments, the connecting structure of the vacuum pipeline further includes a guide post disposed in the one-way valve housing and a valve plate sleeved on the guide post, the valve plate is attached to a flange at the outlet of the base body and covers the outlet of the base body, and when the pressure of one side of the valve plate close to the base body is greater than the pressure of one side of the valve plate far away from the base body, the valve plate is far away from the flange so that air can flow from the outlet of the base body into the one-way valve housing.

In some embodiments, the substrate further comprises a detection channel in communication with the flow channel, the detection channel for providing a vacuum sensor to detect a vacuum level of the flow channel.

In some embodiments, the detection channel is disposed on an extension of the intersection of the bisectors of the two substrate outlets.

In a second aspect of the present invention, there is provided a brake component for an automobile, comprising a connecting structure of a vacuum line as provided in the first aspect of the present invention, an inlet of a base body is communicated with a vacuum booster, an outlet of a check valve of one check valve housing of the two check valve housings is communicated with an engine intake manifold, and an outlet of a check valve of the other check valve housing of the two check valve housings is communicated with a vacuum pump.

Based on the connecting structure of the vacuum pipeline and the automobile brake component, the connecting structure of the vacuum pipeline comprises a base body, a brake component and a brake component, wherein the base body is provided with a base body inlet, a circulation channel and two base body outlets arranged on the circulation channel; two check valve inlets of the two check valve housings are respectively communicated with two matrix outlets correspondingly to form two mutually isolated check valves. The connecting structure of the vacuum pipeline integrates two one-way valves and a tee joint which are independently arranged and need to be independently connected in the prior art into a part, simplifies the arrangement of the vacuum pipeline and saves the cost. The connecting structure of the vacuum pipeline is provided with the base body and the two one-way valve housings, the base body and the one-way valve housings can be manufactured firstly when the connecting structure is manufactured, and then the one-way valve housings are connected with the base body, so that the whole connecting structure does not need to be manufactured directly on the whole, and the production and manufacturing difficulty is reduced.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

FIG. 1 is a schematic view of an automotive brake assembly according to an embodiment of the present invention;

fig. 2 is a schematic sectional view of the connection structure of the vacuum line of fig. 1.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1, the brake part for an automobile according to the embodiment of the present invention includes a connection structure 5 of a vacuum line. The connecting structure 5 of the vacuum pipeline is used for connecting the vacuum booster 1, the vacuum pump 2 and the engine intake manifold 3.

The structure and operation of the connection structure 5 of the vacuum line according to the embodiment of the present invention will be described in detail.

As shown in fig. 2, the connection structure 5 of the vacuum line according to the embodiment of the present invention includes:

a base 51 having a base inlet I, a flow channel C and two base outlets O arranged on the flow channel C;

two check valve housings 52, two check valve inlets of the two check valve housings 52 are respectively communicated with the two base body outlets O correspondingly to form two mutually isolated check valves.

The connecting structure of the vacuum pipeline in the embodiment of the invention integrates two one-way valves and a tee joint which are independently arranged and need to be independently connected in the prior art into one part, simplifies the arrangement of the vacuum pipeline and saves the cost. And the connection structure of the vacuum pipeline of this embodiment sets up to base member and two one-way valve casings, can make base member and one-way valve casing earlier when making this connection structure, then with one-way valve casing and base member be connected can, need not directly make whole connection structure on the whole to reduce the production and make the degree of difficulty.

Specifically in the present embodiment, the check valve housing 52 has a first connection end connected to the base body 51. The base body 51 has a second connection end provided at the base body outlet O and connected with the check valve housing 52. The first connecting end is in concave-convex fit with the second connecting end. The one-way valve housing 52 and the base body 51 are in concave-convex fit, so that the whole connecting structure is compact in structure and firm in connection.

Specifically, as shown in fig. 2, the first and second link ends have mating surfaces that mate with each other, and the mating surfaces of the first and second link ends include a tapered surface a. The mating surface of the first connection end includes a tapered surface, and the mating surface of the second connection end also includes a tapered surface, which are mated with each other to prevent the first connection end and the second connection end from being separated from each other when subjected to an external force or the like.

In this embodiment, the first and second connection ends are welded at their tapered surfaces. In particular, a secure bond between the check valve housing 52 and the base 51 may be achieved using spin friction welding. The conical surface of the first connecting end and the conical surface of the second connecting end are mutually matched and contacted and relatively rotate at a high speed, so that heat energy is generated on the contact surfaces to melt materials to be mutually fused to realize connection.

Specifically, the mating surface of the first connection end includes a tapered inner circular surface. The mating surface of the second connection end includes a tapered outer circular surface.

In this embodiment, as shown in fig. 2, the top surface of the large diameter end of the tapered inner circular surface of the first connection end is provided as a slope. The top surface of the large-diameter end of the conical outer circular surface of the second connecting end is also set to be an inclined surface, so that the tightness of connection between the one-way valve shell and the base body is further improved.

In order to prevent the flash generated by welding between the check valve housing and the base body from entering the interior of the valve body, thereby ensuring the cleanliness of the interior of the valve body, the matching surface of the embodiment further comprises a cylindrical surface B arranged on one side of the conical surface, which is close to the base body, and the cylindrical surface B is smoothly connected with the conical surface A.

In the present embodiment, the two check valve housings 52 are identical in structure. This arrangement allows the two check valve housings 52 to be produced in a unified manner and easily replaced.

Preferably, the check valve housing 52 of the present embodiment is disposed symmetrically about the center line.

As shown in fig. 2, the connecting structure of the vacuum pipeline further includes a guiding post disposed in the check valve housing 52 and a valve plate sleeved on the guiding post, the valve plate is attached to the flange at the outlet of the base body and covers the outlet of the base body, and when the pressure of one side of the valve plate close to the base body is greater than the pressure of one side of the valve plate far from the base body, the valve plate is far away from the flange to allow air to flow from the outlet of the base body into the check valve housing 52.

In order to accurately detect the degree of vacuum in the connection structure of the present embodiment, the base body 51 of the present embodiment further includes a detection channel T communicating with the flow channel C. The detection channel T is used to set a vacuum sensor to detect the degree of vacuum of the flow channel C.

In order to accurately detect the degree of vacuum in the vacuum booster 1, the detection passage T of the present embodiment is provided on an extension line of the intersection of the bisectors of the two base body outlets O. And the detection channel T is arranged perpendicular to the flow channel C.

In at least one embodiment, the whole connecting structure of the vacuum pipeline is made of plastic materials, and the flame resistance and the mechanical property are good, so that the normal use of the vacuum pipeline between-40 ℃ and 120 ℃ is guaranteed.

As shown in fig. 1, the base inlet I of the connection structure of the vacuum line of the present embodiment communicates with the vacuum booster 1, one check valve outlet of the two check valve housings 52 communicates with the engine intake manifold 3, and the other check valve outlet of the two check valve housings 52 communicates with the vacuum pump 2.

The two check valves are arranged to ensure that air flows from the vacuum booster to the vacuum source and to prevent air from flowing from the vacuum source to the vacuum booster. The vacuum source here refers to the vacuum pump 2 or the engine intake manifold 3.

In this embodiment, in order to ensure the connection sealing performance between the connection structure of the vacuum pipeline and other components, the outer circumferential surface of the one-way valve housing 52 of this embodiment is provided with bamboo joint barbs, so as to realize the connection with the engine intake manifold and the vacuum pump through nylon pipes.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.