Gas distribution disc

Abstract

The utility model belongs to the technical field of gas distribution, and discloses a gas distribution plate. The gas distribution disc comprises a main part, an annular groove and a gas inlet communicated with the annular groove are formed in the main part, and at least one positioning groove is formed in the outer ring side wall of the annular groove outwards or the inner ring side wall of the annular groove inwards in a concave mode. The accessory is annular, a plurality of air outlet holes are formed in the accessory, the air outlet holes are evenly distributed in the circumferential direction of the accessory, at least one positioning protrusion is arranged on the accessory in a protruding mode, the accessory is inserted into the annular groove in the axial direction, and an air passing channel is defined between the accessory and the groove wall of the annular groove; a positioning groove is formed in the annular groove, or at least two positioning grooves are unevenly distributed in the circumferential direction of the annular groove, and each positioning protrusion is correspondingly matched with one positioning groove in a concave-convex mode, so that the two air outlet holes adjacent to the air inlet hole in the circumferential direction are symmetrically distributed relative to the air inlet hole. The position corresponding relation between the air inlet holes and the air outlet holes does not need to be manually and additionally confirmed in the assembling process, and the assembling convenience and the assembling efficiency of the gas distribution disc are improved.

Description

Technical Field

[0001] This utility model relates to the field of gas distribution technology, and in particular to a gas distribution disc. Background Technology

[0002] A gas distribution plate is a device for distributing gas. Some gas distribution plates include a main component base plate and an accessory cover plate. The main component has a gas groove recessed on it, and an air inlet is provided at the bottom of the gas groove. The accessory has multiple air outlets. After the accessory is installed at the gas groove of the main component, it forms an air passage with the gas groove. Gas enters the air passage from the air inlet and is discharged from each air outlet, thereby realizing the distribution of gas.

[0003] To ensure uniform gas distribution, it is necessary to ensure that after the main components and accessories are assembled, the two outlets adjacent to the inlet are symmetrically arranged relative to the inlet. Currently, when assembling the main components and accessories, it is necessary to manually confirm the positional correspondence between the inlet and outlet before proceeding to the next step of positioning, assembly, and fixing. The assembly process is cumbersome and prone to misassembly, which affects the gas distribution capacity of the subsequent gas distribution plate.

[0004] Therefore, there is an urgent need for a gas distribution plate to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a gas distribution plate that eliminates the need for manual confirmation of the positional correspondence between the air inlet and outlet during assembly, enabling accurate positioning in one step and thus improving the assembly convenience and efficiency of the gas distribution plate.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A gas distribution disk, comprising:

[0008] The main component has an annular groove and an air inlet communicating with the annular groove. At least one positioning groove is recessed outward from the outer ring sidewall or inward from the inner ring sidewall of the annular groove.

[0009] The accessory is ring-shaped and has multiple air vents evenly distributed around its circumference. The accessory has at least one positioning protrusion and is axially inserted into the annular groove, forming an air passage between the accessory and the groove wall.

[0010] The annular groove is provided with one positioning groove, or at least two positioning grooves are unevenly distributed along the circumference of the annular groove, and each positioning protrusion corresponds to a positioning groove in a concave-convex fit, so that the two air outlets adjacent to the air inlet along the circumference are symmetrically distributed relative to the air inlet.

[0011] Preferably, there are three positioning grooves and three positioning protrusions.

[0012] Preferably, along the axial direction of the main component, the annular groove includes a main groove and a recessed groove. The recessed groove is located at one end near the accessory and its radial width is greater than that of the main groove. The accessory overlaps the bottom surface of the recessed groove and forms the air passage by surrounding the groove wall of the main groove.

[0013] Preferably, the main component and the accessory are welded together.

[0014] Preferably, the inner sidewall of the annular groove has at least one protrusion protruding outward, and the at least one protrusion is distributed circumferentially along the annular groove, and the fitting is welded to the protrusion.

[0015] Preferably, along the axial direction of the main component, the annular groove includes a main groove and a recessed groove. The upper surface of the boss is lower than the bottom surface of the recessed groove. The fitting overlaps the bottom surface of the recessed groove, and a weld pool is formed between the fitting and the boss.

[0016] Preferably, each boss is disposed opposite to one of the positioning slots and forms a gap.

[0017] Preferably, the cross-sectional area of ​​the interval is equal at all points.

[0018] Preferably, the outer peripheral surface of the boss is an arc-shaped surface.

[0019] Preferably, the gas distribution plate further includes a sealing plug that is detachably connected to the air inlet.

[0020] Beneficial effects:

[0021] In this utility model, gas is introduced into the gas distribution plate through the air inlet on the main component. The gas flows in the gas distribution plate and is distributed out through various air outlets. By setting the positioning grooves on the main component to be unevenly distributed along the circumference, the assembly position of the accessory and the main component is uniquely determined during the assembly process. Therefore, it can be accurately ensured that the two air outlets adjacent to the air inlet along the circumference of the assembled gas distribution plate are symmetrically distributed with respect to the air inlet. This ensures that the gas is evenly distributed to both sides after entering the gas distribution plate. The assembly process does not require manual confirmation of the positional correspondence between the air inlet and the air outlet, and can be accurately positioned in one go, thereby improving the assembly convenience and efficiency of the gas distribution plate. Attached Figure Description

[0022] Figure 1 This is an isometric view of the gas distribution disk provided in this embodiment of the utility model;

[0023] Figure 2This is an isometric view of the main component of the gas distribution disk provided in this embodiment of the utility model;

[0024] Figure 3 This is a top view of the gas distribution plate accessory provided in this embodiment of the utility model;

[0025] Figure 4 This is a top view of the gas distribution plate provided in an embodiment of the present invention;

[0026] Figure 5 yes Figure 4 Cross-sectional view at point AA;

[0027] Figure 6 yes Figure 5 Enlarged view of point C in the middle;

[0028] Figure 7 yes Figure 4 Enlarged view of point B in the middle.

[0029] In the picture:

[0030] 1. Accessories; 11. Positioning protrusion; 12. Vent hole;

[0031] 2. Main component; 21. Annular groove; 211. Positioning groove; 212. Main groove section; 213. Settled groove section;

[0032] 22. Air inlet; 23. Boss; 24. Air passage. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0034] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0036] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0037] like Figures 1-5 As shown, this embodiment provides a gas distribution plate, which includes a main component 2 and an accessory 1. The main component 2 has an annular groove 21 recessed on its surface and an air inlet 22 communicating with the annular groove 21, extending to the outside of the main component 2. The accessory 1 is annular and has multiple air outlets 12 arranged circumferentially. The accessory 1 is axially inserted into the annular groove 21 of the main component 2, thereby forming an air passage 24 with the side wall of the groove 212. When using the gas distribution plate, gas enters the air passage 24 through the air inlet 22 and exits through the air outlets 12, thus achieving gas distribution.

[0038] In this embodiment, as Figure 2 , Figure 4 and Figure 5 As shown, the main component 2 is a circular plate, with an annular groove 21 disposed on one side of the circular plate, and an air inlet 22 disposed at the bottom of the annular groove 21, extending axially through the circular plate. In other embodiments, the specific shape of the main component 2 is not limited. In some embodiments, the gas distribution plate also includes a sealing plug, which is detachably connected to the air inlet 22. When it is necessary to ventilate the gas distribution plate, the sealing plug is removed, and the air inlet 22 is connected to an external gas delivery device; after ventilating the gas distribution plate, the sealing plug is used to seal the air inlet 22, thereby preventing external impurities from entering the gas distribution plate. Optionally, the air inlet 22 is internally threaded, and the sealing plug can be screwed into the thread to seal the air inlet 22. Specifically, the sealing plug can be a bolt. In other embodiments, the sealing plug can also be a pin or a rubber plug, or other components capable of sealing the gas distribution plate.

[0039] like Figure 3 As shown, the shape and size of accessory 1 match the annular groove 21 to ensure that it can be inserted into the annular groove 21. Optionally, the plurality of vent holes 12 on accessory 1 are evenly distributed circumferentially.

[0040] At least one positioning groove 211 is recessed outward on the outer sidewall of the annular groove 21 or inward on the inner sidewall. Optionally, one positioning groove 211 is provided on the annular groove 21, or at least two positioning grooves 211 are unevenly distributed along the circumference of the annular groove 21. In this embodiment, as shown... Figures 2-4 As shown, at least one positioning groove 211 is recessed outward on the outer sidewall of the annular groove 21; a corresponding number of positioning protrusions 11 are protruding on the outer circumferential surface of the accessory 1. When the accessory 1 is inserted into the annular groove 21 axially, each positioning protrusion 11 is inserted into a corresponding positioning groove 211, thereby making the two air outlets 12 adjacent to the air inlet 22 symmetrically distributed with respect to the air inlet 22. Specifically, as shown... Figure 7 As shown, two air outlets 12 adjacent to the air inlet 22 along the circumferential direction are defined as the first air outlet and the second air outlet, and the center of the air inlet 22 is located on the perpendicular line between the first air outlet and the second air outlet.

[0041] In this embodiment, the gas distribution plate has a non-uniformly distributed circumferential positioning groove 211 on the main component 2. This ensures that the assembly positions of the accessory 1 and the main component 2 are uniquely determined during the assembly process. Therefore, it can accurately ensure that the two outlet holes 12 adjacent to the inlet hole 22 in the assembled gas distribution plate are symmetrically distributed relative to the inlet hole 22. This ensures that the gas flows out evenly to both sides after entering the gas passage 24 from the inlet hole 22. The assembly process does not require manual confirmation of the positional correspondence between the inlet hole 22 and the outlet hole 12. It can be accurately positioned in one go, thereby improving the assembly convenience and efficiency of the gas distribution plate.

[0042] Specifically, in this embodiment, there are three positioning grooves 211 and three positioning protrusions 11. When the three unevenly distributed and relatively arranged positioning grooves 211 and positioning protrusions 11 are positioned in a concave-convex manner, the operator can first determine the assembly orientation by simply observing the arc length between two adjacent positioning grooves 211 on the main component 2, and then adjust the accessory 1 accordingly to achieve accurate positioning and assembly in one go. The assembly process does not require manual confirmation of the positional correspondence between the air inlet 22 and the air outlet 12, and can achieve accurate positioning in one go, thereby improving the assembly convenience and efficiency of the gas distribution plate.

[0043] In other embodiments, the positioning groove 211 and the positioning protrusion 11 can also be provided in one, two, four or more ways, as long as the uneven distribution can achieve one-time positioning and assembly. No specific limitation is made here.

[0044] like Figure 5 and Figure 6 As shown, in this embodiment, along the axial direction of the main component 2, the annular groove 21 includes a main groove portion 212 and a recessed groove portion 213. The recessed groove portion 213 is located at one end near the accessory 1, that is, the bottom surface of the recessed groove portion 213 is higher than the bottom surface of the main groove portion 212. The radial width of the recessed groove portion 213 is greater than the radial width of the main groove portion 212. The accessory 1 overlaps the bottom surface of the recessed groove portion 213, thereby forming the air passage 24 by the groove wall of the recessed groove portion 213 and the main groove portion 212.

[0045] In this embodiment, the main component 2 and the accessory 1 are welded together to ensure a reliable connection. In other embodiments, the main component 2 and the accessory 1 can also be fixed together by means of adhesive bonding, fastener connection, etc., which are not specifically limited here.

[0046] To ensure a smooth welding process between main component 2 and accessory 1, such as Figure 2 As shown, at least one boss 23 protrudes outward from the inner sidewall of the annular groove 21. The at least one boss 23 is distributed circumferentially along the annular groove 21. The accessory 1 is welded to each boss 23, thereby fixing the main component 2 and the accessory 1.

[0047] like Figure 5 and Figure 6 As shown, in this embodiment, along the axial direction of the main component 2, the upper surface of the boss 23 is lower than the bottom surface of the groove 213. The accessory 1 overlaps the bottom surface of the groove 213. A slit is formed between the lower surface of the accessory 1 and the upper surface of the boss 23. When the main component 2 and the accessory 1 are welded, a weld pool is formed in the slit, thereby ensuring the firmness of the weld between the main component 2 and the accessory 1.

[0048] like Figure 2 , Figure 5 and Figure 6 As shown, in this embodiment, each boss 23 is positioned opposite to a positioning groove 211 and forms a gap. It should be noted that this gap constitutes part of the air passage 24, ensuring unobstructed airflow throughout the circumferential direction of the air passage 24. Furthermore, since the recess width of the main component 2 at the positioning groove 211 is relatively large, by positioning the boss 23 opposite to the positioning groove 211, it is ensured that the air passage 24 still has a sufficient cross-sectional area for airflow at the position corresponding to the boss 23. In this embodiment, the equal cross-sectional area of ​​this gap at all locations ensures smooth gas flow within the air passage 24.

[0049] In this embodiment, the outer peripheral surface of the boss 23 is an arc-shaped surface, which can reduce the flow resistance of gas in the gas passage 24 and ensure stable and smooth gas flow.

[0050] In summary, the assembly, welding, and operation process of this gas distribution plate roughly includes:

[0051] After the main component 2 and accessory 1 are fitted together by the positioning groove 211 and the positioning protrusion 11, the main component 2 and accessory 1 are welded together to form an air passage 24, and two air outlets 12 adjacent to the air inlet 22 are symmetrically distributed relative to the air inlet 22 along the circumferential direction. Then, accessory 1 is welded to each of the protrusions 23 on the main component 2.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A gas distribution disk, characterized in that, include: The main component (2) has an annular groove (21) and an air inlet (22) communicating with the annular groove (21). The outer ring sidewall of the annular groove (21) is recessed outward or the inner ring sidewall is recessed inward. The accessory (1) is annular and has multiple air outlets (12) on it. The multiple air outlets (12) are evenly distributed along the circumference of the accessory (1). At least one positioning protrusion (11) is provided on the accessory (1). The accessory (1) is inserted into the annular groove (21) along the axial direction and forms an air passage (24) between it and the groove wall of the annular groove (21). A positioning groove (211) is provided on the annular groove (21), or at least two positioning grooves (211) are unevenly distributed along the circumference of the annular groove (21), and each positioning protrusion (11) corresponds to a positioning groove (211) in a concave-convex fit, so that the two air outlets (12) adjacent to the air inlet (22) along the circumference are symmetrically distributed with respect to the air inlet (22).

2. The gas distribution disk according to claim 1, characterized in that, The number of the positioning groove (211) and the positioning protrusion (11) are both three.

3. The gas distribution disk according to claim 1, characterized in that, Along the axial direction of the main component (2), the annular groove (21) includes a main groove (212) and a recessed groove (213). The recessed groove (213) is located at one end near the accessory (1) and its radial width is greater than that of the main groove (212). The accessory (1) overlaps the bottom surface of the recessed groove (213) and forms the air passage (24) with the groove wall of the main groove (212).

4. The gas distribution disk according to any one of claims 1-3, characterized in that, The main component (2) and the accessory (1) are welded together.

5. The gas distribution disk according to claim 4, characterized in that, At least one boss (23) protrudes outward from the inner ring sidewall of the annular groove (21), and at least one boss (23) is distributed circumferentially along the annular groove (21). The fitting (1) is welded to the boss (23).

6. The gas distribution disk according to claim 5, characterized in that, Along the axial direction of the main component (2), the annular groove (21) includes a main groove (212) and a recessed groove (213). The upper surface of the boss (23) is lower than the bottom surface of the recessed groove (213). The accessory (1) overlaps the bottom surface of the recessed groove (213). A weld pool is formed between the accessory (1) and the boss (23).

7. The gas distribution disk according to claim 5, characterized in that, Each of the bosses (23) is disposed opposite to one of the positioning slots (211) and forms a gap.

8. The gas distribution disk according to claim 7, characterized in that, The cross-sectional area of ​​the interval is equal at all points.

9. The gas distribution disk according to claim 5, characterized in that, The outer peripheral surface of the boss (23) is an arc-shaped surface.

10. The gas distribution disk according to any one of claims 1-3, characterized in that, The gas distribution plate also includes a sealing plug, which is detachably connected to the air inlet (22).

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