Eccentric ball shifting type quick connector

Abstract

The invention relates to an eccentric ball shifting type quick connector, and belongs to the field of automobile brake system vacuum degree sensor detection. The rubber sealing ball is located at the bottom in the pagoda head seat, the rubber plug is slidably connected with the pagoda head seat, the shifting rod is fixedly connected to the bottom of the rubber plug, and the spring is located in the pagoda head seat below the rubber plug. The invention has the advantages that the structure is novel, an eccentric ball-shifting type sealing structure is designed by utilizing the principle that the sealing rubber ball automatically rolls on a conical surface, the sealing effect is good, and the problems of contact stress attenuation and material abrasion caused by material creep when a pagoda head is frequently pressed in and pulled out during a vacuumizing air leakage experiment of the vacuum degree sensor are solved; the vacuum source can be automatically closed and opened when the vacuum degree sensor is replaced, operation steps are reduced, and the air leakage detection efficiency of the vacuum degree sensor is improved.

Description

Technical Field

[0001] The invention belongs to the field of vacuum sensor detection of automobile brake systems, and particularly relates to an eccentric ball-push type quick connector. Background Art

[0002] Existing vacuum sensors for automotive brake systems generally use a pagoda head (part of the vacuum sensor) to press directly into an elastic tube (silicone or fluororubber) when conducting vacuum leakage tests. This relies on the radial deformation of the elastic tube to achieve sealing. Frequent pressing and removing the pagoda head leads to contact stress attenuation and material wear caused by material creep, and an additional step of opening and closing the vacuum source is required. Although this allows for rapid replacement of the vacuum sensor, with an average insertion and removal time of 8 seconds per test, after the number of tests reaches 60, contact stress attenuation and wear of the inner wall of the elastic tube degrade the sealing performance, significantly increasing the probability of gas leakage and requiring replacement of the elastic tube. As the number of tests increases, the elastic tube replacement time decreases, while the additional step of opening and closing the vacuum source increases the test time, thereby reducing the efficiency of the vacuum sensor vacuum leakage test. Summary of the Invention

[0003] The present invention provides an eccentric ball-type quick connector to solve the problems of contact stress attenuation and material wear and multiple operation steps caused by frequent pressing and pulling out of the pagoda head during vacuum leakage testing of a vacuum sensor.

[0004] The technical solution adopted by the present invention is to include a rubber sealing ball, a spring, a rubber plug, a pagoda head seat and a shift rod, wherein the rubber sealing ball is located at the bottom inside the pagoda head seat, the rubber plug is slidingly connected to the pagoda head seat, the shift rod is fixedly connected to the bottom of the rubber plug, and the spring is located inside the pagoda head seat below the rubber plug.

[0005] A sealing rubber layer is bonded inside the pagoda head seat.

[0006] The rubber plug is in an inverted T shape, the T-shaped head is in sliding connection with the sealing rubber layer, and an air passage is provided inside.

[0007] The lower end of the bottom of the pagoda head seat is provided with a vacuum source fastening connector, the inner bottom is provided with a conical surface, and a vacuum source passage opening is provided below the conical surface.

[0008] The advantage of the present invention is its novel structure. It utilizes the principle of the sealing rubber ball rolling on the conical surface to design an eccentric ball-type sealing structure with good sealing effect. It solves the problems of contact stress attenuation and material wear caused by material creep when the vacuum sensor is frequently pressed in and out of the pagoda head during vacuum leakage experiments. When the vacuum sensor is replaced, the vacuum source can be automatically closed and opened, reducing the operating steps and improving the leakage detection efficiency of the vacuum sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the structure of the rubber stopper of the present invention; Figure 3 It is a structural diagram of the pagoda head seat of the present invention; Figure 4 Schematic diagram of the vacuum source channel of the present invention in a closed state; Figure 5 Schematic diagram of the vacuum source channel of the present invention in an open state; Figure 6 It is a schematic diagram of the use status of the present invention. DETAILED DESCRIPTION

[0010] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all structures.

[0011] See also Figure 1 , including a rubber sealing ball 1, a spring 2, a rubber plug 3, a pagoda head seat 4 and a shift rod 6, wherein the rubber sealing ball 1 is located at the bottom inside the pagoda head seat 4, the rubber plug 3 is slidingly connected to the pagoda head seat 4, the shift rod 6 is fixedly connected to the bottom of the rubber plug 3, and the spring 2 is located inside the pagoda head seat 4 below the rubber plug 3.

[0012] See also Figure 1 The sealing rubber layer 5 is bonded inside the pagoda head seat 4.

[0013] See also Figure 2 The rubber plug 3 is in an inverted T-shape, with its T-shaped head 301 being in sliding connection with the sealing rubber layer 5 and an air passage 302 being provided inside.

[0014] See also Figure 3 The bottom of the pagoda head seat 4 has a vacuum source fastening connector 401, the inner bottom has a conical surface 402, and the bottom of the conical surface has a vacuum source channel 403.

[0015] How it works Connect the vacuum source fastening connector 401 of the pagoda head seat 4 to the vacuum source. When testing, Figure 4 Align the pagoda head 701 of the vacuum sensor 7 with the inner diameter of the sealing rubber layer 5 and press it into the inner diameter of the sealing rubber layer 5. During the pressing process, the top surface of the pagoda head of the vacuum sensor will press against the upper end surface of the T-shaped head 301 of the rubber plug 3. Figure 5, push the rubber plug 3 downward to compress the spring 2. When the lever 6 of the rubber plug 3 touches the rubber sealing ball 1 and continues to move downward, the vacuum sensor pagoda head fits tightly with the sealing rubber layer 5 to achieve a seal. At the same time, the lever 6 pushes the rubber sealing ball 1 away to release the seal. The vacuum source channel port 403 is opened and the vacuum test begins.

[0016] After the test is completed, when the vacuum sensor is withdrawn, the rubber plug 3 moves upward to restore its initial position under the action of the spring 2. After the rubber sealing ball 1 is separated from the lever 6, it rolls to the vacuum source channel opening 403 by relying on the conical surface 402 at the bottom of the pagoda head seat. Due to the vacuum suction, the surface of the rubber sealing ball 1 will fit tightly with the top of the circular vacuum source channel opening 403, achieving the goal of sealing and closing the vacuum source channel until the next vacuum sensor is tested and the above process is repeated. Figure 6 .

[0017] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the scope of protection of the present invention is not limited to the specific details of the above embodiments. Within the technical concept of the present invention, any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention within the technical scope disclosed by the present invention. These simple variations all fall within the scope of protection of the present invention.

[0018] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further explain various possible combinations. In addition, the various different embodiments of the present invention can also be combined arbitrarily, as long as they do not violate the ideas of the present invention, they should also be regarded as the contents disclosed by the present invention. The present invention can also be applied to other similar fields after changing the interface design, and has strong scalability.

Claims

1. An eccentric ball-type quick connector, characterized by: It includes a rubber sealing ball, a spring, a rubber plug, a pagoda head seat and a shift rod, wherein the rubber sealing ball is located at the bottom of the pagoda head seat, the rubber plug is slidingly connected to the pagoda head seat, the shift rod is fixedly connected to the bottom of the rubber plug, and the spring is located inside the pagoda head seat below the rubber plug.

2. The eccentric ball-type quick connector according to claim 1, characterized in that: A sealing rubber layer is bonded inside the pagoda head seat.

3. The eccentric ball-type quick connector according to claim 2, characterized in that: The rubber plug is in an inverted T shape, the T-shaped head is in sliding connection with the sealing rubber layer, and an air passage is provided inside.

4. The eccentric ball-type quick connector according to claim 1 or 2, characterized in that: The lower end of the bottom of the pagoda head seat is provided with a vacuum source fastening connector, the inner bottom is provided with a conical surface, and a vacuum source passage opening is provided below the conical surface.

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