Visual deflation end used in EGR valve body boiling test

Abstract

The utility model provides a visual deflation end in a boiling test of an EGR (Exhaust Gas Recirculation) valve body. The visual deflation end is characterized in that a hollow cavity is formed in the center of an RGR valve body; the observation opening is formed in the outer side wall of the RGR valve body, the bottom of the observation opening communicates with the cavity, and the top of the observation opening extends in the direction away from the RGR valve body. One side of the visual insert block covers the top of the observation opening; according to the EGR valve body, the RGR valve body, the observation opening, the visualized embedded block and the locking plate are adopted, the exhaust end of the EGR valve body is improved to be of a visualized structure, and the EGR valve body is provided with the visualized embedded block and the locking plate. A technician can observe the inner cavity of the deflation end side of the RGR valve body through the observation groove during a boiling test.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to the field of visual detection technology, specifically a visual venting end for EGR valve body boiling test. Background Technology

[0002] The existing EGR valve body design is undergoing boiling tests to confirm its stability under extreme engine operating conditions.

[0003] Existing EGR valve body visualization structures cannot observe the venting end. For example, the prior art CN218035133U discloses a boiling visualization structure for a cooler, which includes a window on the cooler body at an interface-free location; a plastic transparent window laid on the window; a pad around the window connected to the plastic transparent window; a pressure plate covering the plastic transparent window; and the pressure plate being fixedly installed by passing through the plastic transparent window and the pad in sequence via a connecting structure. This utility model uses a window on the cooler body, a plastic transparent window, a pad, a pressure plate, and a connecting structure to install the boiling visualization window on the cooler, which is then installed on the engine. In bench testing, it is used to confirm whether there is boiling inside, thus avoiding defects caused by internal boiling in the early stages of mass production and reducing the risk of cracking. However, with the above solution, a venting pipe is inserted through the plastic transparent window. During testing, due to structural strength issues, the plastic transparent window may deform, making it impossible to clearly observe the internal condition of the EGR and affecting the reliability of the test. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a visual venting end for EGR valve body boiling test, so as to solve the difficulties of the prior art.

[0005] To achieve the above and other related objectives, this utility model provides a visual venting end for EGR valve body boiling tests, comprising:

[0006] RGR valve body 1, wherein a hollow cavity 11 is provided in the center of the RGR valve body 1;

[0007] Observation port 2 is provided on the outer wall of the RGR valve body 1. The bottom of the observation port 2 communicates with the cavity 11, and the top of the observation port 2 extends away from the RGR valve body 1.

[0008] A visualization insert 3, one side of which covers the top of the observation port 2;

[0009] Locking plate 4 is located directly above the observation port 2 and is threaded onto the top of the visualization insert 3.

[0010] According to the preferred embodiment, the observation port 2 is protruding, and the top of the observation port 2 has connecting screw holes 21 around its perimeter.

[0011] According to the preferred embodiment, the visualization block 3 is an integral structure, and the visualization block 3 is made of PC plastic.

[0012] According to the preferred embodiment, the visualization insert 3 consists of a vent pipe 31, a cover plate 32, and an insert 34 from top to bottom. The cover plate 32 covers the top of the observation port 2. The cover plate 32 has connecting through holes 33 around its perimeter. The bottom of the connecting through holes 33 communicates with the connecting screw hole 21. The bottom of the visualization insert 3 is the insert 34. The bottom of the insert 34 passes through the observation port 2 and enters the cavity 11. The bottom end of the insert 34 is flush with the inner wall of the RGR valve body 1. An air outlet 35 is provided on one side of the bottom of the insert 34. The top of the air outlet 35 extends vertically upward through the cover plate. The vent pipe 31 is located on the top of the cover plate 32. The bottom of the vent pipe 31 communicates with the air outlet 35.

[0013] According to the preferred embodiment, the locking plate 4 has an observation groove 41 in the center, and the locking plate 4 is sleeved on the outside of the vent pipe 31 through the observation groove 41. Locking bolts 42 are passed around the locking plate 4, and the bottom of the locking bolts 42 passes through the connecting through hole 33 and is locked in the connecting screw hole 21 by thread engagement.

[0014] This utility model adopts an RGR valve body, an observation port, a visualization insert, and a locking plate, and improves the venting end of the EGR valve body into a visualization structure, so that technicians can observe the internal cavity of the venting end side of the RGR valve body through the observation slot during boiling tests.

[0015] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0017] Figure 2 This is an enlarged view of the observation port side in this utility model;

[0018] Figure 3 The diagram shown is an enlarged three-dimensional structural diagram of the visual insert and locking plate in this utility model.

[0019] Figure 4 This is a magnified three-dimensional structural diagram of the visual insert and locking plate from another angle in this utility model.

[0020] Figure 5The diagram shown is an enlarged schematic of the observation slot in this utility model;

[0021] Label Explanation

[0022] 1. RGR valve body; 11. Cavity;

[0023] 2. Observation port; 21. Connecting screw hole;

[0024] 3. Visualized insert; 31. Vent pipe; 32. Cover plate; 33. Connecting through hole; 34. Embedded body; 35. Vent hole;

[0025] 4. Locking plate; 41. Observation slot; 42. Locking bolt; Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0028] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0029] This invention proposes a visual venting end for EGR valve body boiling test, which is used in the EGR valve body visual boiling detection process. This invention does not limit the type of EGR valve, but the structure of the EGR valve body 1, observation port 2, visual insert 3 and locking plate 4 is particularly suitable for the design of the visual structure of the air inlet end in EGR valve body boiling test.

[0030] In general, the visual venting end for boiling tests of the EGR valve body proposed in this utility model mainly includes: the RGR valve body 1, the observation port 2, the visual insert 3, and the locking plate 4. (See also...) Figure 1 It shows the arrangement of the RGR valve body 1, observation port 2, visualization insert 3 and locking plate 4.

[0031] To address the structural strength issues in the prior art, the proposed EGR valve body for boiling testing features a visual venting end. This is achieved by providing a protruding observation port 2 on the RGR valve body 1. The top of the observation port 2 extends away from the RGR valve body 1, providing sufficient space for the visual insert 3. This ensures the embedded part 34, flush with the inner wall of the RGR valve body 1, has sufficient thickness, increasing its strength and preventing deformation. One side of the visual insert 3 covers the top of the observation port 2. The integrated structure of the visual insert 3 provides greater strength compared to the separate plastic transparent window and pad in the prior art. A locking plate 4 is positioned directly above the observation port 2 and is threaded onto the top of the visual insert 3, thus limiting and fixing the visual insert 3.

[0032] The RGR valve body 1 has a hollow cavity 11 in the center. An observation port 2 is provided on the outer wall of the RGR valve body 1. The bottom of the observation port 2 is connected to the cavity 11. The observation port can be triangular, square, circular or other shapes. However, it should be noted that the top of the observation port 2 must be on the same plane. In order to ensure the strength of the visualization block 3, the top of the observation port 2 cannot be a trapezoidal or arc-shaped structure.

[0033] The aforementioned visualization insert 3 is placed on top of the observation port 2. From top to bottom, the visualization insert 3 consists of a vent pipe 31, a cover plate 32, and an insert 34. The cover plate 32 is placed on top of the observation port 2. The cover plate 32 has connecting through holes 33 around its perimeter. The bottom of the connecting through holes 33 communicates with the connecting screw holes 21. The bottom of the visualization insert 3 is the insert 34. The bottom of the insert 34 passes through the observation port 2 and enters the cavity 11. The bottom end of the insert 34 is flush with the inner wall of the RGR valve body 1. A vent hole 35 is opened on one side of the bottom of the insert 34. The top of the vent hole 35 extends vertically upward through the cover plate. The vent pipe 31 is placed on top of the cover plate 32. The bottom of the vent pipe 31 communicates with the vent hole 35.

[0034] The locking plate 4 has an observation groove 41 in the center. The locking plate 4 is sleeved on the outside of the vent pipe 31 through the observation groove 41. Locking bolts 42 are inserted around the locking plate 4. The bottom of the locking bolts 42 passes through the connecting through hole 33 and is locked in the connecting screw hole 21 by thread engagement.

[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A visual venting end for EGR valve body boiling test, characterized in that, include: RGR valve body (1), wherein a hollow cavity (11) is provided in the center of the RGR valve body (1); The observation port (2) is located on the outer wall of the RGR valve body (1). The bottom of the observation port (2) is connected to the cavity (11), and the top of the observation port (2) extends away from the RGR valve body (1). A visualization insert (3) is provided on one side of the top of the observation port (2); Locking plate (4) is located directly above the observation port (2) and is attached to the top of the visualization insert (3) by means of threaded connection.

2. The visualized venting end of the EGR valve body during boiling test according to claim 1, characterized in that, The observation port (2) is protruding, and the top of the observation port (2) has connecting screw holes (21) around its perimeter.

3. The visualized venting end of the EGR valve body during boiling test according to claim 2, characterized in that, The visualization insert (3) consists of a vent pipe (31), a cover plate (32), and an insert (34) from top to bottom. The cover plate (32) covers the top of the observation port (2). The cover plate (32) has connecting through holes (33) around its perimeter. The bottom of the connecting through holes (33) is connected to the connecting screw hole (21). The bottom of the visualization insert (3) is the insert (34). The bottom of the insert (34) passes through the observation port (2) and enters the cavity (11). The bottom end of the insert (34) is flush with the inner wall of the RGR valve body (1). The bottom side of the insert (34) has an air outlet (35). The top of the air outlet (35) extends vertically upward through the cover plate. The vent pipe (31) is located on the top of the cover plate (32). The bottom of the vent pipe (31) is connected to the air outlet (35).

4. The visualized venting end of the EGR valve body during boiling test according to claim 3, characterized in that, The locking plate (4) has an observation groove (41) in the center. The locking plate (4) is sleeved on the outside of the vent pipe (31) through the observation groove (41). Locking bolts (42) are passed around the locking plate (4). The bottom of the locking bolts (42) passes through the connecting through hole (33) and is locked in the connecting screw hole (21) by thread engagement.

Images