CN204828843U - Tee bend air bleeding valve assembly - Google Patents

Abstract

A three-way exhaust valve assembly, including a three-way exhaust valve joint and an air release bolt, the sealing end I of the three-way exhaust valve joint is a concave conical surface closely connected to the valve orifice, and the air release bolt The sealing end II of the sealing end is the convex conical surface at the lower end, the conical angle of the concave conical surface is 120°, the conical angle of the convex conical surface is 123-125°, the sealing end II of the air release bolt, that is, the convex The sealing line formed when the conical surface contacts the sealing end I of the three-way exhaust valve joint, that is, the concave conical surface falls in the concave conical surface. The deflation bolt of the three-way exhaust valve assembly is easy to process, and the coaxiality of the processing of the sealing end surface of the three-way exhaust valve joint is not high, which improves the consistency of the product and ensures the three-way exhaust On the premise of the air release function and oil pressure sealing of the valve assembly, the qualified rate of the product is improved, thereby reducing the cost.

Description

A three-way exhaust valve assembly

technical field

The utility model relates to a vehicle component, in particular to a three-way exhaust valve assembly.

Background technique

The three-way exhaust valve assembly is connected between the clutch master cylinder assembly and the clutch through the oil pipe, and its main functions are as follows:

1. Connect the oil pipe between the clutch master cylinder assembly and the clutch;

2. It plays the role of deflation when filling the clutch fluid;

3. After the clutch fluid is filled, it plays the role of sealing and transmitting oil pressure.

The sealing of the three-way exhaust valve assembly is mainly realized by tightening the deflation bolt in the three-way exhaust valve assembly so that it is squeezed and deformed with the sealing end of the three-way exhaust valve joint to form a line seal.

The sealing end of the deflation bolt of the existing three-way exhaust valve assembly is a 90° convex conical surface, and the sealing end of the matching three-way exhaust valve joint is a 120° concave cone surface. When the valve joint is in close contact, the sealing line formed by the convex conical surface of the bleed bolt and the three-way exhaust valve joint is exactly the intersection line between the concave conical surface of the three-way exhaust valve joint and the valve hole, that is, the orifice circumference of the valve hole line, as shown in Figure 5.

The shortcomings of the three-way exhaust valve assembly with this structure: the quality and coaxiality of the processing of the sealing end of the three-way exhaust valve joint are relatively high during production, and the product quality is not easy to guarantee, which increases the difficulty of processing and production. cost.

Contents of the invention

The technical problem to be solved by the utility model is: to provide a three-way exhaust valve assembly that can improve the production qualification rate of the product while satisfying the product's deflation function and oil pressure sealing performance, so as to overcome the deficiencies of the prior art .

The technical scheme adopted by the utility model is: a three-way exhaust valve assembly, including a three-way exhaust valve joint and a deflation bolt. Concave conical surface, the sealing end II of the vent bolt is the convex conical surface at the lower end, the conical angle of the concave conical surface is 120°, the conical angle of the convex conical surface is 123-125°, the venting The sealing line formed when the sealing end II of the air bolt, that is, the convex conical surface contacts the sealing end I of the three-way exhaust valve joint, that is, the concave conical surface, falls in the concave conical surface.

Due to the adoption of the above technical solution, a three-way exhaust valve assembly of the utility model has the following beneficial effects:

1. The three-way exhaust valve assembly of the utility model improves the angle of the convex cone surface of the air release bolt. When the convex cone surface of the air release bolt contacts the sealing end of the three-way exhaust valve joint, the sealing line formed by it will It is not at the valve orifice, but moved outward to the concave conical surface of the three-way exhaust valve joint, so the sealing quality is easy to guarantee, the coaxiality of the processing of the sealing end surface of the three-way exhaust valve joint is not high, and the product is qualified High rate, lower cost;

2. The deflation bolt of the three-way exhaust valve assembly of the utility model only changes the angle of the convex cone surface without increasing the difficulty of processing. Satisfying the deflation function and oil pressure sealing requirements of the three-way exhaust valve assembly is beneficial to production.

The technical features of a three-way exhaust valve assembly of the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

Description of drawings

Figure 1: A schematic structural view of a three-way exhaust valve assembly of the present invention;

Figure 2: Structural schematic diagram of the deflation bolt of the utility model;

Figure 3: Enlarged view of part A of Figure 1;

Fig. 4: Schematic diagram of the structure of the venting bolt of the prior art;

Figure 5: Schematic diagram of the sealing structure of the three-way exhaust valve assembly in the prior art.

In the picture:

1—Three-way exhaust valve joint, 11—Sealing end I, 2—Deflation bolt, 21—Sealing end II, 3—Dust cover, 4—Aeration hole, 5—Sealing line, 6—Valve hole.

Detailed ways

Embodiment one

As shown in Figures 1 to 3, a three-way exhaust valve assembly includes a three-way exhaust valve joint 1 and a deflation bolt 2, and the sealing end I11 of the three-way exhaust valve joint 1 is a tightly connected valve The concave conical surface of the orifice, the sealing end II21 of the deflation bolt 2 is the convex conical surface at the lower end, the conical angle of the concave conical surface is 120°, and the conical angle of the convex conical surface is 123-125° , the sealing line 5 formed when the sealing end II of the deflation bolt 2, that is, the convex conical surface contacts the sealing end I of the three-way exhaust valve joint 1, that is, the concave conical surface, falls in the concave conical surface.

When in use, pass the dust cover 3 through the thread from the sealing end II21 of the air release bolt 2, screw the air release bolt 2 into the three-way exhaust valve joint 1, and then tighten the torque to 10N·m～12N·m, Finally, establish 0.45MPa air pressure in the three-way exhaust valve assembly by air detection method and put it into water to test the tightness. If no bubbles emerge from the vent hole 4 of the vent bolt 2, the product is qualified, otherwise it is unqualified. After passing the test, connect the three-way exhaust valve assembly between the clutch master cylinder assembly and the clutch through the oil pipe, manually loosen the air release bolt 2 that is in a tight tight state, and open the dust cover 3 on the air release bolt 2 , connect the pipeline system with the outside world, after the gas in the clutch system is exhausted, that is, when the liquid flows out from the vent hole 4 of the vent bolt 2, then tighten the vent bolt 2 to seal it, so as to achieve the purpose of venting and oiling the clutch system effect.

Claims (1)

1. a three-way exhaust valve assembly, comprise three-way exhaust valve joint (1) and bleeder screw (2), the sealed end I (11) of described three-way exhaust valve joint (1) is for being close to the recessed conical surface of valve orifice, the dome conical surface that the sealed end II (21) of described bleeder screw (2) is its lower end, it is characterized in that: the cone angle of described recessed conical surface is 120 °, the cone angle of the described dome conical surface is 123-125 °, the sealed end II of described bleeder screw (2), the i.e. sealed end I of the dome conical surface and three-way exhaust valve joint (1), namely the potted line (5) formed during recessed conical surface contact drops in recessed conical surface.