Rocker arm structure of bypass valve

Abstract

The utility model relates to a rocker arm structure of a bypass valve, which comprises a volute and a rocker arm, the rocker arm assembly is arranged in the mounting hole, a first groove is formed in the circumferential outer wall, located in the mounting hole, of a rocker arm, and the first groove is used for collecting particle impurities; the end, located in the volute cavity, of the mounting hole is provided with a first round chamfer, the outer wall of the end, close to the valve plate, of the rocker arm is arranged to be a spherical face, and the spherical face makes contact with the first round chamfer. According to the rocker arm structure of the bypass valve, the structure of the rocker arm is improved, the machining groove is additionally formed in the rocker arm, impurity particles can be collected through the machining groove, and carbon deposition clamping stagnation or salt spray test clamping stagnation is prevented; meanwhile, the corner position where the rocker arm is connected with the volute is changed into spherical surface contact, and friction between the rocker arm and the volute is reduced; in addition, according to the structure, the traditional design that a bush is pressed between the volute and the rocker arm is omitted, and the technological risk and cost are reduced by reducing the bush.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field especially is a bypass valve rocker arm structure. BACKGROUND

[0002] Turbocharger has been widely used in engine because of its effect on improving engine power, reducing fuel consumption rate and improving emission. Turbocharger is mainly used on automobile, uses the exhaust gas of automobile to promote turbocharger to work, to reach the purpose of enhancing the power of automobile engine, saving fuel.

[0003] The high speed torque characteristic of bypass valve type supercharger is controlled by bypass valve, allows to adopt smaller scroll to improve low speed torque characteristic, and it reaches the purpose through adjusting the exhaust gas flow through bypass valve.

[0004] A bypass valve needs to be used on turbocharger, and the traditional bypass valve mainly comprises a valve rod and a valve, the valve rod is connected with a handle, a bushing is arranged on the scroll, and the valve is opened or closed by rotating the valve rod through the handle. Since the bushing is arranged, the installation process is relatively complex, and the product structure needs to be improved in view of the defects of the above structure. TECHNICAL SOLUTION

[0005] Therefore, the utility model wants to overcome the problem that the structure of the bypass valve in the prior art is not reasonable, and thus the use effect and service life are affected.

[0006] To solve the above technical problems, the utility model provides a bypass valve rocker arm structure, which comprises: a scroll, an installation hole is arranged on the scroll; a rocker arm is arranged in the installation hole, one end of the rocker arm in the scroll is connected with a valve plate, and one end of the rocker arm extending out of the scroll is connected with a handle, the rocker arm is a cylindrical rod, a groove one is arranged on the circumferential outer wall of the rocker arm in the installation hole, and the groove one is used for collecting particulate impurities; one end of the installation hole in the scroll cavity is provided with a circular chamfer one, the outer wall of the rocker arm close to the valve plate is provided as a spherical surface, and the spherical surface is in contact with the circular chamfer one.

[0007] In one embodiment of the utility model, one end of the rocker arm extending into the scroll cavity is provided with a convex part, the cross section of the convex part is circular, and the convex part and the rocker arm are coaxially arranged, and the spherical surface is arranged at the connecting position of the convex part and the rocker arm.

[0008] In one embodiment of the utility model, the diameter of the convex part is greater than the diameter of the installation hole.

[0009] In one embodiment of the utility model, a cavity one is arranged in the scroll, one end of the rocker arm extends into the cavity one, and the valve plate is located in the cavity one.

[0010] In one embodiment of the utility model, the valve piece is equipped with through hole one, and the through hole one is a circular through hole.

[0011] In one embodiment of the utility model, one end face of the valve piece is equipped with a fastener, and the fastener is connected with a sealing piece.

[0012] In one embodiment of the utility model, the fastener is annular, and a plurality of clamping claws are arranged on the outer wall of the fastener, the plurality of clamping claws are arranged obliquely, the plurality of clamping claws are located on the side of the fastener where the sealing piece is arranged, and the fastener is coaxially arranged with the through hole one.

[0013] In one embodiment of the utility model, the plurality of clamping claws are arranged in a ring array with the center of the fastener as the center.

[0014] In one embodiment of the utility model, the sealing piece is an annular sealing ring, and the sealing piece is limited on the fastener by the plurality of clamping claws.

[0015] In one embodiment of the utility model, the mounting hole is a circular hole.

[0016] The above technical scheme of the utility model has the following beneficial effects compared with the prior art:

[0017] The bypass valve rocker structure improves the structure of the rocker, increases a processing groove on the rocker, can collect impurity particles through the processing groove, prevents carbon deposition from being stuck or salt spray test from being stuck, simultaneously changes a spherical surface contact at the corner position where the rocker is connected with the volute, reduces the friction between the rocker and the volute, and additionally, cancels the design of the traditional liner press fitting between the volute and the rocker, reduces the liner, and reduces the process risk and cost. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, wherein

[0019] Figure 1 It is a sectional view of the bypass valve rocker structure in the preferred embodiment of the utility model;

[0020] Figure 2 It is a sectional view of the bypass valve rocker structure in the preferred embodiment of the utility model; Figure 1

[0021] Figure 3 It is a structural schematic view of the bypass valve rocker structure in the preferred embodiment of the utility model; Figure 1

[0022] Figure 4 ​​Structure diagram of the bypass valve rocker arm structure in the preferred embodiment of the utility model Figure 2 ;

[0023] Figure 5 Structure diagram of the bypass valve rocker arm structure in the preferred embodiment of the utility model Figure 3 ;

[0024] Figure 6 Structure diagram of the fastener in the preferred embodiment of the utility model.

[0025] Description of the drawings: volute 1, mounting hole 11, round chamfer one 111, cavity one 12, rocker arm 2, valve plate 21, through hole one 211, fastener 212, sealing element 213, clamping jaw 214, handle 22, recess one 23, spherical surface 24, convex part 25, valve cover 26. DETAILED DESCRIPTION

[0026] The utility model will be further described below in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0027] Refer to Figures 1-5 The utility model discloses a bypass valve rocker arm structure, including: volute 1, is equipped with mounting hole 11 on it, the mounting hole 11 is round hole, the rocker arm 2 is set in mounting hole 11, and the one end of the rocker arm 2 in volute 1 is connected with valve plate 21, and the one end of rocker arm 2 that stretches out volute 1 is connected with handle 22, the rocker arm 2 is cylindrical rod, and the circumferential outer wall of rocker arm 2 in mounting hole 11 is equipped with recess one 23, and the recess one 23 is used for collecting particulate impurities, the one end of mounting hole 11 in the cavity of volute 1 is equipped with round chamfer one 111, the outer wall of the one end of rocker arm 2 close to valve plate 21 is spherical surface 24, and the spherical surface 24 and round chamfer one 111 contact each other.Turn handle 22, so that the rocker arm 2 rotates in mounting hole 11 during the process, and the bypass valve will produce carbon deposit or particulate matter during the operation process, and the carbon deposit or particulate matter will drop into recess one 23, and recess one 23 can collect carbon deposit or particulate matter, avoid that carbon deposit or particulate matter rubs mutually between rocker arm 2 and mounting hole 11 and causes component damage.

[0028] In the above structure, the one end of rocker arm 2 that stretches into the cavity of volute 1 is equipped with convex part 25, the cross section of convex part 25 is circular, and convex part 25 and rocker arm 2 are coaxially arranged, and spherical surface 24 is arranged at the connecting position of convex part 25 and rocker arm 2.The diameter of convex part 25 is greater than the diameter of mounting hole 11.The diameter of convex part 25 is greater than the diameter of mounting hole 11, which can limit rocker arm 2 on volute 1.

[0029] In the structure, the volute 1 is internally provided with a cavity 12, one end of the rocker arm 2 extends into the cavity 12, and the valve plate 21 is located in the cavity 12.

[0030] In the structure, the valve plate 21 is connected with a valve cover 26, the valve cover 26 is provided with a cylindrical protrusion, the valve plate 21 is provided with a through hole 211, the through hole 211 is a circular through hole, and the cylindrical protrusion is in interference fit with the through hole 211. One of the end faces of the valve plate 21 is provided with a fastener 212, and the fastener 212 is connected with a sealing element 213. The sealing element 213 is used for sealing the connection position between the valve cover 26 and the valve plate 21.

[0031] Referring to Figure 6 As shown in the figure, the fastener 212 is in the form of a ring, and the outer wall of the fastener 212 is provided with a plurality of clamping claws 214, the plurality of clamping claws 214 are arranged obliquely, and the plurality of clamping claws 214 are located on the side of the fastener 212 provided with the sealing element 213, and the fastener 212 and the through hole 211 are coaxially arranged. The plurality of clamping claws 214 are arranged in a ring array with the center of the fastener 212 as the center. The sealing element 213 is a ring-shaped sealing ring, and the sealing element 213 is limited on the fastener 212 by the plurality of clamping claws 214.

[0032] Obviously, the above embodiments are only examples for clearly illustrating, and are not intended to limit the embodiments. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, all the embodiments do not need to be exhausted, and the obvious changes or variations derived therefrom are still within the protection scope of the present application.

Claims

1. A by-pass valve rocker arm structure characterized by, The utility model relates to a valve, which comprises: A vortex shell with a mounting hole; A rocker arm arranged in the mounting hole, one end of the rocker arm located in the vortex shell is connected with a valve plate, and one end of the rocker arm extending out of the vortex shell is connected with a handle, the rocker arm is a cylindrical rod, and a groove one is arranged on the circumferential outer wall of the rocker arm located in the mounting hole, the groove one is used for collecting particulate impurities; one end of the mounting hole located in the vortex shell cavity is provided with a circular chamfer one, the outer wall of the rocker arm close to the valve plate one end is provided as a spherical surface, and the spherical surface is in contact with the circular chamfer one.

2. The valve rocker arm structure according to claim 1, characterized by: One end of the rocker arm extending into the vortex shell cavity is provided with a convex part, the cross section of the convex part is circular, and the convex part and the rocker arm are coaxially arranged, and the spherical surface is arranged at the connecting position of the convex part and the rocker arm.

3. The valve rocker arm structure of claim 2, wherein: The diameter of the convex part is greater than the diameter of the mounting hole.

4. The valve rocker arm structure of claim 1, wherein: The vortex shell is provided with a cavity one, one end of the rocker arm extends into the cavity one, and the valve plate is located in the cavity one.

5. The valve rocker arm structure of claim 1, wherein: The valve plate is provided with a through hole one, and the through hole one is a circular through hole.

6. The valve rocker arm structure of claim 5, wherein: One end face of the valve plate is provided with a fastener, and the fastener is connected with a sealing element.

7. The valve rocker arm structure of claim 6, wherein: The fastener is in the form of a ring, and a plurality of clamping claws are arranged on the outer wall of the fastener, the plurality of clamping claws are arranged obliquely, and the plurality of clamping claws are located on one side of the fastener provided with the sealing element, and the fastener and the through hole one are coaxially arranged.

8. The valve rocker arm structure of claim 7, wherein: The plurality of clamping claws are arranged in the form of an annular array with the center of the fastener as the center.

9. The valve rocker arm structure of claim 8, wherein: The sealing element is an annular sealing ring, and the sealing element is limited on the fastener through the plurality of clamping claws.

10. The valve rocker arm structure of claim 1, wherein: The mounting hole is a circular hole.

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