Gas distribution rod assembly

Abstract

The invention relates to the technical field of fuel gas distribution rods, and particularly discloses a gas distribution rod assembly which comprises a gas inlet rod, a gas outlet rod and a first control valve. The air outlet rod comprises a main rod and a first mounting seat arranged on the surface of the main rod, and the air inlet rod, the main rod and the first mounting seat are integrally formed; an air inlet channel is formed in the air inlet rod, and a first air outlet communicated with the air inlet channel is formed in the surface of the main rod; the first control valve is mounted on the first mounting seat, the first mounting seat is provided with a first connecting cavity extending into the main rod, the surface of the main rod is provided with a second air outlet hole penetrating through the inner wall of the first connecting cavity, and the air inlet channel communicates with the first connecting cavity; and the first control valve is used for blocking or opening the second air outlet hole. According to the invention, the complexity of a forming die and the difficulty of later processing can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of gas distribution rods, in particular to a gas distribution rod assembly. Background Art

[0002] Existing grate burners generally use gas distribution rods to control the heat load of grate combustion. Through multi-segment gas control, the heat load can meet the user's needs, avoid unnecessary heat loss, and reduce gas waste.

[0003] For example, a Chinese utility model patent with publication number CN221839701 U discloses a similar air distributor rod assembly. In this patent document, an air distributor cavity is arranged inside the air distributor rod, a mounting seat for installing an electromagnetic valve is arranged on the surface of the air distributor rod, a connecting cavity connected to the air distributor cavity is arranged inside the mounting seat, and the connecting cavity and the air distributor cavity need to be formed by different inserts or processing techniques. Therefore, the structure of the existing air distributor rod is relatively complicated, which will increase the complexity of the molding mold and increase the difficulty of later processing. Summary of the invention

[0004] The present invention provides a gas dividing rod assembly, which can reduce the complexity of a forming mold and the difficulty of later processing.

[0005] To solve the above problems, the present invention adopts the following technical solutions:

[0006] An embodiment of the present invention provides an air distribution rod assembly, including an air intake rod, an air outlet rod and a first control valve; the air outlet rod includes a main rod and a first mounting seat arranged on the surface of the main rod, and the air intake rod, the main rod and the first mounting seat are integrally formed; an air intake channel is arranged in the air intake rod, and a first air outlet hole connected to the air intake channel is arranged on the surface of the main rod; the first control valve is installed on the first mounting seat, and the first mounting seat is provided with a first connecting cavity extending to the inside of the main rod, and a second air outlet hole is provided on the surface of the main rod to penetrate the inner wall of the first connecting cavity, the air intake channel is connected to the first connecting cavity, and the first control valve is used to block the second air outlet hole or open the second air outlet hole.

[0007] In some embodiments, a second control valve is also included, and the air outlet rod also includes a second mounting seat arranged on the surface of the main rod; the main rod and the second mounting seat are integrally formed; the second control valve is installed on the second mounting seat, and the second mounting seat is provided with a second connecting cavity, and the main rod is provided with a sub-air cavity connected to the second connecting cavity, and the surface of the main rod is provided with a third air outlet connected to the sub-air cavity, and the air inlet channel is connected to the second connecting cavity, and the second control valve is used to control the connection between the second connecting cavity and the sub-air cavity or the disconnection between the second connecting cavity and the sub-air cavity.

[0008] In some embodiments, a connecting hole is provided on the inner wall of the air inlet channel, a middle portion of the connecting hole is communicated with the air inlet channel, and two ends of the connecting hole respectively penetrate to the inner walls of the first connecting cavity and the second connecting cavity.

[0009] In some embodiments, a first opening is provided on the surface of the air outlet rod, the first opening penetrates to the inner wall of the first connecting cavity, and the first opening is coaxially arranged with the connecting hole, and a first blocking cover is fixed at the first opening, and the first blocking cover seals the first opening.

[0010] In some embodiments, a convex strip is integrally formed on the surface of the main rod, and two ends of the convex strip are respectively connected to the first mounting seat and the second mounting seat, and at least a portion of the connecting hole is located inside the convex strip.

[0011] In some embodiments, the air inlet passage extends to the interior of the main rod, and the first air outlet hole penetrates to the inner wall of the air inlet passage.

[0012] In some embodiments, the main rod includes a spacer block located inside the main rod, the spacer block separates the air chamber and the first connecting chamber, and the air inlet channel extends to the spacer block.

[0013] In some embodiments, the end of the air dividing cavity away from the spacer block forms a second opening penetrating to the surface of the main rod, and a second blocking cover is fixed at the second opening, and the second blocking cover seals the second opening.

[0014] In some embodiments, the extension direction of the air intake channel is parallel to the length direction of the air intake rod, and the side wall of the air intake rod is provided with an air intake port connected to the air intake channel; the end of the air intake channel away from the air outlet rod forms a third opening that penetrates to the surface of the air intake rod, and a third blocking cover is fixed at the third opening, and the third blocking cover seals the third opening.

[0015] In some embodiments, a convex ring is disposed on the inner wall of the first connecting cavity around the first air outlet, and the first control valve is used to abut against the convex ring to block the first air outlet or to move away from the convex ring to open the first air outlet.

[0016] In some embodiments, the main rod and the intake rod are vertically connected; the axial direction of the connecting hole is parallel to the length direction of the main rod; the first control valve and the second control valve are both piston solenoid valves, the opening and closing directions of the first control valve and the second control valve are parallel, the opening and closing directions of the second control valve are perpendicular to the length direction of the main rod, and the opening and closing directions of the second control valve form a preset angle with the length direction of the intake rod.

[0017] The present invention has at least the following beneficial effects: the first connecting cavity on the first mounting seat of the present invention extends to the interior of the main rod, and the second air outlet hole on the surface of the main rod penetrates to the inner wall of the first connecting cavity. The gas in the first connecting cavity is directly ejected through the second air outlet hole, which is equivalent to the first connecting cavity and the original air separation cavity being integrated into one. This structural design is more reasonable, and there is no need to separately form the connecting cavity and the air separation cavity, which can reduce the complexity of the molding mold and the difficulty of later processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a gas distribution rod assembly according to an embodiment of the present invention;

[0019] Figure 2 for Figure 1 The structure schematic diagram of the gas distribution rod assembly shown in another perspective;

[0020] Figure 3 for Figure 1 A schematic cross-sectional view taken along the AA section line;

[0021] Figure 4 for Figure 2 A schematic cross-sectional view taken along section line BB;

[0022] Figure 5 The figure is a side view schematic diagram of a gas distribution rod assembly according to an embodiment of the present invention.

[0023] Wherein, the accompanying drawings are marked as follows:

[0024] Intake rod 100, intake port 101, intake channel 110, connecting hole 120;

[0025] The air outlet rod 20, the main rod 200, the first air outlet hole 201, the second air outlet hole 202, the third air outlet hole 203, the convex ring 204, the first mounting seat 210, the first connecting cavity 211, the second mounting seat 220, the second connecting cavity 221, the air dividing cavity 230, the spacer block 240, the convex strip 250, the first blocking cover 261, the second blocking cover 262, and the third blocking cover 263;

[0026] A first control valve 310 and a second control valve 320 . DETAILED DESCRIPTION

[0027] The present invention provides the following description with reference to the accompanying drawings to assist in a comprehensive understanding of various embodiments of the present invention as defined by the claims and their equivalents. The description includes various specific details to assist in understanding, but these details should be considered as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present invention.

[0028] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0030] An embodiment of the present invention provides a gas distribution rod assembly, such as Figure 1-4 As shown, it includes an air intake rod 100, an air outlet rod 20 and a first control valve 310. The air outlet rod 20 includes a main rod 200 and a first mounting seat 210 arranged on the surface of the main rod 200. The air intake rod 100, the main rod 200 and the first mounting seat 210 are integrally formed, and can be specifically integrally formed by die casting or other molding processes. An air intake channel 110 is arranged in the air intake rod 100, and a first air outlet hole 201 connected to the air intake channel 110 is arranged on the surface of the main rod 200. The gas transported from the outside enters the interior of the gas distribution rod through the air intake channel 110, and a part of the gas can be ejected through the first air outlet hole 201, so that the fire bar corresponding to the first air outlet hole 201 burns monolithically. The first control valve 310 is installed on the first mounting seat 210, and the first mounting seat 210 is provided with a first connecting cavity 211. The first connecting cavity 221 extends to the interior of the main rod 200, and the surface of the main rod 200 is provided with a second air outlet 202 that penetrates through the inner wall of the first connecting cavity 221. The gas in the first connecting cavity 211 can be directly sprayed outward through the second air outlet 202. The air intake channel 110 is connected with the first connecting cavity 211, and the gas in the air intake channel 110 can enter the first connecting cavity 211. The first control valve 310 is used to block the second air outlet 202 or open the second air outlet 202.

[0031] When the first control valve 310 blocks the second gas outlet 202, only the first gas outlet 201 sprays gas outward, and the heat load at this time is the smallest. When the first control valve 310 opens the second gas outlet 202, both the first gas outlet 201 and the second gas outlet 202 spray gas outward, and the heat load at this time increases, thereby forming a multi-segment combustion control. Since the first connecting cavity 211 extends to the inside of the main rod 200, and the second gas outlet 202 penetrates the inner wall of the first connecting cavity 211, it is equivalent to the first connecting cavity 211 and the original gas separation cavity being integrated into one. This structural design is more reasonable, and there is no need to separately form the connecting cavity and the gas separation cavity, which can reduce the complexity of the molding mold and the difficulty of later processing.

[0032] In some embodiments, Figure 1-4 As shown, the gas distribution rod assembly of this embodiment also includes a second control valve 320, and the gas outlet rod 20 also includes a second mounting seat 220 arranged on the surface of the main rod 200. The main rod 200 and the second mounting seat 220 are integrally formed, and the second control valve 320 is installed on the second mounting seat 220. The second mounting seat 220 is provided with a second connecting cavity 221, and the main rod 200 is provided with a gas distribution cavity 230 connected to the second connecting cavity 221. The surface of the main rod 200 is provided with a third gas outlet 203 connected to the gas distribution cavity 230, and the air inlet channel 110 is connected to the second connecting cavity 221, and the gas in the air inlet channel 110 can enter the second connecting cavity 221. The second control valve 320 is used to control the second connecting cavity 221 and the gas distribution cavity 230 to be connected or the second connecting cavity 221 and the gas distribution cavity 230 to be disconnected.

[0033] When the first control valve 310 blocks the second air outlet 202 and the second control valve 320 controls the second connecting chamber 221 and the air dividing chamber 230 to be disconnected, only the first air outlet 201 sprays gas outwards, and the heat load at this time is the smallest, which is the smallest grade; when the first control valve 310 opens the second air outlet 202 and the second control valve 320 controls the second connecting chamber 221 and the air dividing chamber 230 to be disconnected, the first air outlet 201 and the second air outlet 202 both spray gas outwards, and the heat load at this time increases, which is the middle grade; when the first control valve 310 opens the second air outlet 202 and the second control valve 320 controls the second connecting chamber 221 and the air dividing chamber 230 to be connected, the first air outlet 201, the second air outlet 202 and the third air outlet 203 all spray gas outwards, so that the heat load reaches the maximum, which is the largest grade. Therefore, this embodiment further increases the number of grades of heat load, can finely control the heat load, and meet the diverse needs of users.

[0034] In this embodiment, the number of second air outlet holes 202 may be smaller than the number of third air outlet holes 203. When the first control valve 310 blocks the second air outlet holes 202 and the second control valve 320 controls the second connecting chamber 221 and the gas dividing chamber 230 to be connected, the first air outlet holes 201 and the third air outlet holes 203 both spray gas outward at a higher level. Since the number of second air outlet holes 202 is smaller than the number of third air outlet holes 203, the heat load at the higher level is greater than the heat load at the middle level, but less than the heat load at the maximum level, so that the number of heat load levels reaches four, which further subdivides the heat load levels and can better meet the diverse needs of users.

[0035] Furthermore, a connecting hole 120 is provided on the inner wall of the air intake channel 110, and the middle part of the connecting hole 120 is connected to the air intake channel 110, and the two ends of the connecting hole 120 respectively penetrate into the inner walls of the first connecting cavity 211 and the second connecting cavity 221. Thus, the air intake channel 110, the first connecting cavity 211 and the second connecting cavity 221 are connected through a connecting hole 120, which simplifies the air path structure. The connecting hole 120 can be directly drilled or formed by inserts. At the same time, the connecting hole 120 is set on the inner wall of the air intake channel 110, and there is no need to add an additional pipeline structure. This design can reduce the complexity of the molding mold and the difficulty of later processing.

[0036] Furthermore, a first opening is provided on the surface of the gas outlet rod 20, and the first opening penetrates to the inner wall of the first connecting cavity 211, and the first opening is coaxially arranged with the connecting hole 120, and a first plugging cover 261 is fixed at the first opening, and the first plugging cover 261 seals the first opening. Since the first opening is coaxially arranged with the connecting hole 120, the insert for forming the connecting hole 120 can be removed from the first opening, or a hole can be drilled from the first opening to drill out the connecting hole 120, and this structure can further reduce the complexity of the forming mold and the difficulty of post-processing. After the connecting hole 120 is formed, the first plugging cover 261 seals the first opening so that the gas does not leak from the first opening.

[0037] In some embodiments, a convex strip 250 is integrally formed on the surface of the main rod 200, and both ends of the convex strip 250 are respectively connected to the first mounting seat 210 and the second mounting seat 220, and at least a portion of the connection hole 120 is located inside the convex strip 250. Since the connection hole 120 is located on the inner wall of the air inlet passage 110, the wall thickness of the main rod 200 is not enough to form a connection hole 120 of a corresponding aperture, and the presence of the convex strip 250 increases the local wall thickness of the main rod 200, so that the connection hole 120 that meets the ventilation requirements can be formed inside the main rod 200.

[0038] In some embodiments, the air intake channel 110 extends to the interior of the main rod 200, and the first air outlet hole 201 penetrates the inner wall of the air intake channel 110. The gas in the air intake channel 110 is directly ejected through the first air outlet hole 201, which is equivalent to the air intake channel 110 and the original air sub-cavity being integrated into one. There is no need to design a air sub-cavity connected to the air intake channel 110. This design further improves the rationality, and there is no need to separately form the air intake channel 110 and the air sub-cavity, which can further reduce the complexity of the molding mold and the difficulty of later processing.

[0039] Furthermore, the main rod 200 includes a spacer block 240 located inside the main rod 200, and the spacer block 240 separates the air chamber 230 and the first connecting chamber 211, so that the air chamber 230 and the first connecting chamber 211 are not connected. Compared with the traditional air chamber assembly, there is no need to set a plugging cover between the air intake channel 110 and the first connecting chamber 211, which can reduce the use of plugging covers and reduce the risk of gas leakage. The air intake channel 110 extends to the spacer block 240, and the distance between the air intake channel 110 and the first connecting chamber 211 and the second connecting chamber 221 is closer, which can shorten the length of the connecting hole 120 and make the overall structure compact.

[0040] At least a portion of the connection hole 120 in the above embodiment may also be disposed on the spacer block 240 .

[0041] Furthermore, the end of the air-dividing cavity 230 away from the spacer block 240 forms a second opening that penetrates the surface of the main rod 200, and a second plugging cover 262 is fixed at the second opening, and the second plugging cover 262 seals the second opening. The insert for forming the air-dividing cavity 230 can be removed from the second opening, or a hole can be drilled from the second opening to drill out the air-dividing cavity 230. This structure can further reduce the complexity of the molding mold and the difficulty of post-processing. After the air-dividing cavity 230 is formed, the second plugging cover 262 seals the second opening so that the gas does not leak from the second opening.

[0042] In some embodiments, Figure 1-4 As shown, the extension direction of the air inlet channel 110 is parallel to the length direction of the air inlet rod 100, and the side wall of the air inlet rod 100 is provided with an air inlet port 101 connected to the air inlet channel 110, and the gas enters the air inlet channel 110 through the air inlet port 101. The end of the air inlet channel 110 away from the air outlet rod 20 forms a third opening that penetrates to the surface of the air inlet rod 100, and a third blocking cover 263 is fixed at the third opening, and the third blocking cover 263 seals the third opening.

[0043] The insert for forming the air inlet passage 110 can be removed from the third opening, or a hole can be drilled from the third opening to drill out the air inlet passage 110. This structure can further reduce the complexity of the forming mold and the difficulty of later processing. After the air inlet passage 110 is formed, the third plugging cover 263 seals the third opening so that the gas does not leak from the third opening.

[0044] In some embodiments, Figure 3 and Figure 4As shown, the inner wall of the first connecting cavity 211 is provided with a convex ring 204 around the first gas outlet 202, and the first control valve 310 is used to abut against the convex ring 204 to block the first gas outlet 202, or the first control valve 310 is used to stay away from the convex ring 204 to open the first gas outlet 202. Since the nozzle needs to be fixed in the first gas outlet 202, the first control valve 310 abuts against the convex ring 204 to avoid pressure damage to the nozzle, and after the convex ring 204 abuts against the first control valve 310, the sealing is better, which ensures the blocking effect of the second gas outlet 202 and avoids gas leakage.

[0045] In some embodiments, Figure 1-4 As shown, the main rod 200 and the air intake rod 100 are vertically connected, and accordingly, the extension direction of the air intake channel 110 can be set perpendicular to the length direction of the air intake rod 100.

[0046] In some embodiments, Figure 1-4 As shown, the axial direction of the connecting hole 120 is parallel to the length direction of the main rod 200 , and the first opening may be formed at one end of the main rod 200 in the length direction.

[0047] In some embodiments, Figure 1-5 As shown, the first control valve 310 and the second control valve 320 are both piston-type solenoid valves, the opening and closing directions of the first control valve 310 and the second control valve 320 are parallel, and the opening and closing directions of the second control valve 320 are perpendicular to the length direction of the main rod 200. Correspondingly, the opening and closing directions of the first control valve 310 are also perpendicular to the length direction of the main rod 200. At the same time, the opening and closing directions of the second control valve 320 form a preset angle c with the length direction of the air intake rod 100. Compared with the existing air split rod assembly, the opening and closing directions of the control valve 320 are not parallel to the length direction of the air intake rod 100, and the first control valve 310 and the second control valve 320 are not blocked by the air intake rod 100, so the spacing between the first control valve 310 and the second control valve 320 is smaller, the length of the connecting hole 120 is smaller, and the overall structure is more compact.

[0048] In this embodiment, the preset angle c may be 30°-90°, preferably, the preset angle c may be 45°.

[0049] In the above embodiment, the first gas outlet 201, the second gas outlet 202 and the third gas outlet 203 may be fixed with nozzles to spray the gas outwards by using the nozzles.

[0050] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the present invention. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the present invention is provided only for illustration, and not for limiting the present invention as defined by the attached claims and their equivalents.

Claims

1. A gas distribution rod assembly, characterized in that: It includes an air inlet rod, an air outlet rod and a first control valve; the air outlet rod includes a main rod and a first mounting seat arranged on the surface of the main rod, and the air inlet rod, the main rod and the first mounting seat are integrally formed; an air inlet channel is arranged in the air inlet rod, and a first air outlet hole connected with the air inlet channel is arranged on the surface of the main rod; the first control valve is installed on the first mounting seat, and the first mounting seat is provided with a first connecting cavity extending to the inside of the main rod, and the surface of the main rod is provided with a second air outlet hole penetrating to the inner wall of the first connecting cavity, the air inlet channel is connected with the first connecting cavity, and the first control valve is used to block the second air outlet hole or open the second air outlet hole.

2. The gas distribution rod assembly according to claim 1, characterized in that: It also includes a second control valve, and the air outlet rod also includes a second mounting seat arranged on the surface of the main rod; the main rod and the second mounting seat are integrally formed; the second control valve is installed on the second mounting seat, and the second mounting seat is provided with a second connecting cavity, and the main rod is provided with a branch air cavity connected to the second connecting cavity, and the surface of the main rod is provided with a third air outlet connected to the branch air cavity, and the air inlet channel is connected to the second connecting cavity, and the second control valve is used to control the connection between the second connecting cavity and the branch air cavity or the disconnection between the second connecting cavity and the branch air cavity.

3. The gas distribution rod assembly according to claim 2, characterized in that: The inner wall of the air intake passage is provided with a connecting hole, the middle of the connecting hole is communicated with the air intake passage, and both ends of the connecting hole penetrate through the inner walls of the first connecting cavity and the second connecting cavity respectively.

4. The gas distribution rod assembly according to claim 3, characterized in that: A first opening is provided on the surface of the air outlet rod, the first opening penetrates to the inner wall of the first connecting cavity, and the first opening is coaxially arranged with the connecting hole. A first blocking cover is fixed at the first opening, and the first blocking cover seals the first opening.

5. The gas distribution rod assembly according to claim 3, characterized in that: A convex strip is integrally formed on the surface of the main rod, and two ends of the convex strip are respectively connected to the first mounting seat and the second mounting seat, and at least a part of the connecting hole is located inside the convex strip.

6. The gas distribution rod assembly according to any one of claims 1 to 5, characterized in that: The air inlet passage extends to the interior of the main rod, and the first air outlet hole penetrates to the inner wall of the air inlet passage.

7. The gas distribution rod assembly according to claim 6, characterized in that: The main rod comprises a spacer block located inside the main rod, the spacer block separates the air chamber and the first connecting chamber, and the air inlet passage extends to the spacer block.

8. The gas distribution rod assembly according to claim 7, characterized in that: The end of the air dividing cavity away from the spacer block forms a second opening penetrating to the surface of the main rod, and a second blocking cover is fixed at the second opening, and the second blocking cover seals the second opening.

9. The gas distribution rod assembly according to any one of claims 1 to 5, characterized in that: The extension direction of the air intake channel is parallel to the length direction of the air intake rod, and the side wall of the air intake rod is provided with an air intake port connected to the air intake channel; the end of the air intake channel away from the air outlet rod forms a third opening that penetrates to the surface of the air intake rod, and a third blocking cover is fixed at the third opening, and the third blocking cover seals the third opening.

10. The gas distribution rod assembly according to any one of claims 1 to 5, characterized in that: The inner wall of the first connecting cavity is provided with a convex ring around the first air outlet, and the first control valve is used to abut against the convex ring to block the first air outlet or to move away from the convex ring to open the first air outlet.

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