Gas distribution rod assembly and gas equipment

Abstract

The utility model discloses a gas distribution rod assembly and gas equipment. The air distribution rod assembly comprises an air distribution rod body and at least one electromagnetic valve, the air distribution rod body is provided with an air inlet, at least two mutually-isolated air outlet cavities and at least two flow dividing channels, each air outlet cavity is communicated with the air inlet through one flow dividing channel, and a valve port is formed in the end, away from the air outlet cavities, of each flow dividing channel. The inner diameter of the valve port is the same as that of the shunting channel; according to the technical scheme, the size of the gas distribution rod assembly can be reduced while the requirement for gas flow is not affected, and the gas distribution rod assembly is convenient to install.

Description

Technical Field

[0001] The utility model relates to the technical field of gas equipment, in particular to a gas distribution rod assembly and gas equipment. Background Art

[0002] Gas equipment uses gas distribution rod assemblies to achieve gas diversion to meet the different gas requirements of the burners.

[0003] In the related art, the gas distributor rod assembly controls and adjusts the gas output and gas pressure of the gas distributor rod assembly through a solenoid valve. However, in order to ensure sufficient flow requirements, the existing gas distributor rod assembly uses a large solenoid valve, which results in the gas distributor rod assembly being too large and inconvenient to install. Utility Model Content

[0004] The main purpose of the utility model is to provide a gas distribution rod assembly, aiming at reducing the volume of the gas distribution rod assembly while not affecting the gas flow demand, so as to facilitate installation.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a gas distribution rod assembly, comprising:

[0006] The air splitter rod body is provided with an air inlet, at least two mutually isolated air outlet cavities and at least two flow diversion channels, each of the air outlet cavities is connected with the air inlet through a flow diversion channel, and a valve port is provided at one end of the flow diversion channel away from the air outlet cavity, and the inner diameter of the valve port is the same as the inner diameter of the flow diversion channel; and

[0007] At least one solenoid valve is correspondingly installed at one end of at least one of the diversion channels away from the air outlet cavity, so as to block or open the valve port.

[0008] In an embodiment of the present application, the inner wall of the valve port is formed by extending the inner wall of the diversion channel along the axial direction away from the air outlet cavity.

[0009] In one embodiment of the present application, the diversion channel is a straight hole channel, and the valve port is arranged as a straight port.

[0010] In one embodiment of the present application, one end of the valve port facing away from the diversion channel is rounded.

[0011] In one embodiment of the present application, the solenoid valve has a movable valve plug, and the valve plug can move closer to or away from the valve port to block or open the valve port;

[0012] Wherein, when the valve port is blocked, the valve plug is pressed against and sealed against the end surface of the valve port which is away from the diversion channel.

[0013] In one embodiment of the present application, the gas distribution rod body includes:

[0014] An air intake pipe, provided with the air intake port;

[0015] An air outlet pipe is provided with at least two air outlet cavities, and each of the air outlet cavities is provided with a plurality of nozzles;

[0016] a connecting pipe connected to the air intake pipe; and

[0017] At least two shunt pipes are respectively connected to the connecting pipe and the air outlet pipe, a shunt channel is formed in each of the shunt pipes, and the valve port is set at one end of the shunt pipe connected to the connecting pipe; the solenoid valve is installed at the connection between the connecting pipe and the shunt pipe to separate or conduct the connecting pipe and the shunt pipe.

[0018] In an embodiment of the present application, an extending direction of the connecting pipe is the same as an extending direction of the air outlet pipe.

[0019] In one embodiment of the present application, a mounting opening is provided on a side of the connecting pipe away from the shunt pipe, the solenoid valve is installed at the mounting opening, and the valve plug can move in the connecting pipe along the axial direction of the shunt pipe.

[0020] In one embodiment of the present application, the solenoid valve further includes:

[0021] A bracket, mounted on the mounting opening and fixedly connected to the connecting pipe;

[0022] An electromagnet is fixedly mounted on one end of the bracket away from the connecting pipe;

[0023] A moving iron core is magnetically matched with the electromagnet and can move closer to or away from the electromagnet; the valve plug is arranged at one end of the moving iron core away from the electromagnet; and

[0024] A spring connects the valve plug and the bracket to provide an elastic force for the valve plug to return to the valve port.

[0025] To achieve the above object, the present application further provides a gas device, comprising a burner and the above-mentioned gas distribution rod assembly, wherein the nozzle of the gas distribution rod assembly is connected to the air inlet of the burner; the gas distribution rod assembly comprises:

[0026] The air splitter rod body is provided with an air inlet, at least two mutually isolated air outlet cavities and at least two flow diversion channels, each of the air outlet cavities is connected with the air inlet through a flow diversion channel, and a valve port is provided at one end of the flow diversion channel away from the air outlet cavity, and the inner diameter of the valve port is the same as the inner diameter of the flow diversion channel; and

[0027] At least one solenoid valve is correspondingly installed at one end of at least one of the diversion channels away from the air outlet cavity, so as to block or open the valve port.

[0028] The technical solution of the utility model sets the inner diameter of the valve port to be the same as the inner diameter of the diversion channel. Without changing the inner diameter size of the diversion channel, compared with the expansion form in the related technology, the present application can reduce the sealing surface of the solenoid valve when sealing the valve port. Accordingly, a solenoid valve with a smaller volume model can be selected for installation. In this way, the volume of the gas distribution rod assembly can be reduced as a whole, which is more convenient for installation and will not affect the gas flow demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0030] Figure 1 It is a structural schematic diagram of an embodiment of the gas distribution rod assembly of the utility model;

[0031] Figure 2 It is a structural schematic diagram of an embodiment of the utility model gas distribution rod assembly from another perspective;

[0032] Figure 3 It is a cross-sectional view of the gas distribution rod assembly of the utility model;

[0033] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0034] Figure 5 It is a structural schematic diagram of the solenoid valve in the embodiment of the utility model.

[0035] Description of Figure Numbers:

[0036]

[0037]

[0038] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0041] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0042] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0043] In gas equipment, the gas is usually diverted to different areas of the burner through a gas distributor rod assembly to meet the different gas requirements of the burner. The gas distributor rod assembly controls and adjusts the gas output and gas pressure of the gas distributor rod assembly through a solenoid valve. In related technologies, the valve port of the flow channel that matches the valve plug of the solenoid valve is usually a flared structure, which requires a sufficiently large area of ​​the valve plug to cooperate with the valve port for sealing. The selected solenoid valve is large in size, resulting in a large gas distributor rod assembly and inconvenience in installation. If a smaller solenoid valve is selected, the inner diameter of the flow channel needs to be reduced accordingly, which will lead to the problem of reduced flow.

[0044] Based on this, the utility model proposes a gas distribution rod assembly, which aims to reduce the volume of the gas distribution rod assembly while not affecting the gas flow demand, so as to facilitate installation.

[0045] In the embodiment of the present utility model, Figures 1 to 4As shown, the gas distributor rod assembly includes a gas distributor rod body 1 and at least one solenoid valve 2 .

[0046] The air distribution rod body 1 is provided with an air inlet 101, at least two mutually isolated air outlet cavities 102 and at least two diversion channels 103. Each air outlet cavity 102 is connected with the air inlet 101 through a diversion channel 103. The end of the diversion channel 103 away from the air outlet cavity 102 is provided with a valve port 104. The inner diameter of the valve port 104 is the same as the inner diameter of the diversion channel 103. At least one solenoid valve 2 is correspondingly installed at one end of at least one diversion channel 103 away from the air outlet cavity 102, so as to block or open the valve port 104.

[0047] In this embodiment, the air inlet 101 is used to communicate with the gas source so that the gas can enter the flow channel in the gas distribution rod body 1 from the air inlet 101. Each diverter channel 103 corresponds to connecting an air outlet cavity 102 and the air inlet 101, so that the gas entering from the air inlet 101 can be diverted through at least two diverter channels 103 to enter the corresponding air outlet cavity 102 respectively, and then output to the target position (such as different areas of the burner, etc.) through structures such as air outlet holes or nozzles. The end of the diverter channel 103 away from the air outlet cavity 102 is provided with a valve port 104 and a solenoid valve 2, and the solenoid valve 2 can open or block the valve port 104 to achieve air flow interruption control between the air inlet 101 and the diverter channel 103. It can be understood that one solenoid valve 2 corresponds to and controls one valve port 104 separately, so that the gas can flow into the corresponding air outlet cavity 102, thereby realizing the function that different air outlet cavities 102 can be independently controlled.

[0048] By setting the inner diameter of the valve port 104 to be the same as the inner diameter of the diverter channel 103, without changing the inner diameter size of the diverter channel 103, this embodiment can reduce the sealing surface of the solenoid valve 2 when sealing the valve port 104, relative to the flared valve port 104 in the related art. In this way, the volume of the valve plug 25 of the solenoid valve 2 can be reduced. Accordingly, a solenoid valve 2 with a smaller volume model can be selected for installation. In this way, the volume of the gas distribution rod assembly can be reduced as a whole, which is more convenient for installation and will not affect the gas flow requirement.

[0049] In one embodiment of the present application, Figure 3 and Figure 4 The inner wall of the valve port 104 is formed by extending the inner wall of the flow diversion channel 103 in the axial direction away from the air outlet cavity 102 .

[0050] In this embodiment, the inner wall of the valve port 104 is formed by the inner wall of the shunt channel 103 extending along the axial direction, so that the inner wall of the valve port 104 and the inner wall of the shunt channel 103 are the same circumferential surface, so that the inner diameter of the shunt channel 103 is the same as the inner diameter of the valve port 104. Compared with the related art in which the valve port 104 is expanded relative to the shunt channel 103, this embodiment reduces the area of ​​the sealing surface that needs to block the valve port 104, so that a smaller solenoid valve 2 can be selected, achieving the purpose of reducing the volume of the gas distribution rod assembly without affecting the flow rate.

[0051] In one embodiment of the present application, the diversion channel 103 is a straight hole channel, and the valve port 104 is arranged as a straight port.

[0052] In this embodiment, the diverter channel 103 is set as a straight hole channel, and the valve port 104 is set as a straight hole accordingly, so that the inner cavity of the diverter channel 103 and the valve port 104 is a cylindrical hole, which can facilitate processing and further reduce airflow resistance.

[0053] Furthermore, one end of the valve port 104 away from the diversion channel 103 is rounded.

[0054] In this embodiment, by setting the end of the valve port 104 to be chamfered, burrs generated during the processing and forming process can be eliminated, and the processing accuracy of the sealing surface can be ensured, so that the sealing effect between the solenoid valve 2 and the valve port 104 is better.

[0055] In one embodiment of the present application, Figure 3 and Figure 4 The solenoid valve 2 has a movable valve plug 25, and the valve plug 25 can move closer to or away from the valve port 104 to block or open the valve port 104; wherein, when blocking the valve port 104, the valve plug 25 and the end face of the valve port 104 facing away from the diversion channel 103 are pressed against each other for sealing.

[0056] In this embodiment, the valve plug 25 of the solenoid valve 2 reciprocates to achieve the function of blocking and opening the valve port 104. When the valve plug 25 blocks the valve port 104, the valve plug 25 and the end surface of the valve port 104 facing away from the diversion channel 103 are abutted and sealed. In this way, the blocking force of the valve plug 25 on the valve port 104 is not only affected by the driving force of the solenoid valve 2, but also by the pressure of the gas, so as to achieve a better blocking effect.

[0057] It should be noted that, in order to ensure the sealing effect, the sealing area of ​​the valve plug 25 will be set to be slightly larger than the area of ​​the valve port 104. Compared with the flared valve port 104 in the related art, this embodiment can reduce the sealing area of ​​the valve plug 25 to a certain extent, thereby reducing the volume of the solenoid valve 2 accordingly.

[0058] In one embodiment of the present application, Figures 1 to 3 The air distribution rod body 1 includes an air inlet pipe 11, an air outlet pipe 12, a connecting pipe 13 and at least two shunt pipes 14, the air inlet pipe 11 is provided with the air inlet port 101; the air outlet pipe 12 is provided with the at least two air outlet cavities 102, and each of the air outlet cavities 102 is correspondingly provided with a plurality of nozzles 121; the connecting pipe 13 is connected to the air inlet pipe 11; at least two shunt pipes 14 are respectively connected to the connecting pipe 13 and the air outlet pipe 14, and a shunt channel 103 is formed in each of the shunt pipes 14, and the valve port 104 is provided at one end of the shunt pipe 14 connected to the connecting pipe 13; the solenoid valve 2 is installed at the connection between the connecting pipe 13 and the shunt pipe 14, so as to separate or conduct the connecting pipe 13 and the shunt pipe 14.

[0059] This embodiment illustrates the structure of the air distribution rod body 1, the air outlet pipe 12 is a long strip of tubular structure, two adjacent air outlet cavities 102 can be separated by a partition or a baffle in the air outlet pipe 12, and each air outlet cavity 102 is provided with a plurality of nozzles 121. It can be understood that the number of nozzles 121 of different air outlet cavities 102 can be the same or different. The air inlet pipe 11 is connected to the air source, and the air flow enters the connecting pipe 13 from the air inlet pipe 11, and then is divided into each diversion pipe 14 through the connecting pipe 13, and then enters the corresponding air outlet cavity 102, and finally is ejected from the corresponding nozzle 121.

[0060] The valve port 104 is formed at one end where the shunt pipe 14 is connected to the connecting pipe 13. By installing the solenoid valve 2 at the connection between the connecting pipe 13 and the shunt pipe 14, the valve plug 25 can move closer to or away from the shunt pipe 14 to smoothly cooperate with the valve port 104, thereby achieving the connection or isolation of the passage between the connecting pipe 13 and the shunt pipe 14.

[0061] In one embodiment, the cylinder body 1 is an integrally formed structure.

[0062] In one embodiment of the present application, Figures 1 to 3 , the extension direction of the connecting pipe 13 is the same as the extension direction of the outlet pipe 12. Such an arrangement enables the connecting pipe 13 and the outlet pipe 12 to have a certain overlapping area in the length direction of the outlet pipe 12, thereby reducing the overall length dimension of the air splitter rod body 1 and improving the convenience of installation. Optionally, the connecting pipe 13 is arranged in parallel with the outlet pipe 12. Furthermore, the at least two diverter pipes 14 can be arranged in parallel and at intervals between the connecting pipe 13 and the outlet pipe 12 to facilitate processing and manufacturing. Preferably, the diverter pipe 14 is arranged perpendicular to the outlet pipe 12.

[0063] In one embodiment of the present application, Figures 1 to 3A mounting port 105 is provided on the side of the connecting pipe 13 away from the shunt pipe 14 , and the solenoid valve 2 is installed at the mounting port 105 so that the valve plug 25 can move in the connecting pipe 13 along the axial direction of the shunt pipe 14 to block or open the valve port 104 .

[0064] In this embodiment, by setting an installation port 105 on the side of the connecting pipe 13 away from the shunt pipe 14, the installation port 105 is opposite to the valve port 104 of the shunt pipe 14. When the solenoid valve 2 is installed at the installation port 105, the valve plug 25 of the solenoid valve 2 can move closer to or away from the valve port 105 in the connecting pipe 13, thereby realizing the function of blocking or opening the valve port 105.

[0065] In addition, the moving direction of the valve plug 25 is consistent with the axial direction of the diverter tube 14, so that the extension direction of the solenoid valve 2 is consistent with the extension direction of the diverter tube 14. Then the solenoid valve 2 and the diverter tube 14 have a certain overlapping area in the length direction of the diverter tube 14, which can further reduce the volume of the gas distribution rod assembly.

[0066] In one embodiment of the present application, Figures 3 to 5 The solenoid valve 2 also includes a bracket 21, an electromagnet 22, a moving iron core 23 and a spring 24. The bracket 21 is installed on the installation port 105 and is fixedly connected to the connecting pipe 13; the electromagnet 22 is fixedly installed on the end of the bracket 21 away from the connecting pipe 13; the moving iron core 23 and the electromagnet 22 are magnetically matched and can move closer to or away from the electromagnet 22; the valve plug 25 is arranged at the end of the moving iron core 23 away from the electromagnet 22; the spring 24 connects the valve plug 25 and the bracket 21 to provide an elastic force for the valve plug 25 to return to the valve port 104.

[0067] This embodiment illustrates the structure of the electromagnetic valve 2, and the bracket 21 serves to install the internal components of the electromagnetic valve 2, such as the electromagnet 22, the moving iron core 23, and the spring 24. A guide tube 26 is provided in the bracket 21, and the moving iron core 23 is installed in the guide tube 26, and can reciprocate along the guide tube 26. A coil 27 is provided on the outer periphery of the electromagnet 22, and the magnetism of the electromagnet 22 is controlled by turning on and off the power of the coil 27. When the coil 27 is energized, the electromagnet 22 has magnetism, and can absorb the moving iron core 23 to compress the spring 24 to move in a direction away from the valve port 104, so as to drive the valve plug 25 to open the valve port 104; when the coil 27 is de-energized, the electromagnet 22 has no magnetism, and the moving iron core 23 can extend and move toward the valve port 104 under the action of the spring 24, so that the valve plug 25 blocks the valve port 104.

[0068] Optionally, the bracket 21 and the connecting pipe 13 can be fixedly assembled by means of threaded connection, welding or snap connection.

[0069] The utility model also proposes a gas device, which includes a burner and a gas distribution rod assembly. The specific structure of the gas distribution rod assembly refers to the above embodiment. Since the gas device adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here. Among them, the nozzle of the gas distribution rod assembly is connected to the air inlet of the burner. Optionally, the gas device can be a gas water heater, a wall-mounted boiler or a boiler, etc.

[0070] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gas distribution rod assembly, characterized in that: include: The air splitting rod body is provided with an air inlet, at least two mutually isolated air outlet cavities and at least two flow diversion channels, each of the air outlet cavities is connected with the air inlet through a flow diversion channel, and a valve port is provided at one end of the flow diversion channel away from the air outlet cavity, and the inner diameter of the valve port is the same as the inner diameter of the flow diversion channel; and At least one solenoid valve is correspondingly installed at one end of at least one of the diversion channels away from the air outlet cavity, and is used to block or open the valve port.

2. The gas distribution rod assembly according to claim 1, characterized in that: The inner wall of the valve port is formed by extending the inner wall of the flow diversion channel in the axial direction away from the air outlet cavity.

3. The gas distribution rod assembly according to claim 2, characterized in that: The diversion channel is a straight hole channel, and the valve port is arranged as a straight port.

4. The gas distribution rod assembly according to claim 3, characterized in that: The end of the valve port away from the diversion channel is rounded.

5. The gas distribution rod assembly according to any one of claims 1 to 4, characterized in that: The solenoid valve has a movable valve plug for blocking or opening the valve port; When the valve port is blocked, the valve plug is pressed against the end surface of the valve port facing away from the diversion channel to form a seal.

6. The gas distribution rod assembly according to claim 5, characterized in that: The gas distribution rod body comprises: An air intake pipe, provided with the air intake port; An air outlet pipe is provided with at least two air outlet cavities, and each of the air outlet cavities is provided with a plurality of nozzles; a connecting pipe connected to the air intake pipe; and At least two shunt pipes, respectively connected to the connecting pipe and the air outlet pipe, each of the shunt pipes has a shunt channel formed therein, and the valve port is arranged at one end of the shunt pipe connected to the connecting pipe; The solenoid valve is installed at the connection between the connecting pipe and the shunt pipe to separate or connect the connecting pipe and the shunt pipe.

7. The gas distribution rod assembly according to claim 6, characterized in that: The extending direction of the connecting pipe is the same as the extending direction of the air outlet pipe.

8. The gas distribution rod assembly according to claim 7, characterized in that: A mounting opening is provided on a side of the connecting pipe away from the shunt pipe, the solenoid valve is mounted on the mounting opening, and the valve plug can move in the connecting pipe along the axial direction of the shunt pipe.

9. The gas distribution rod assembly according to claim 8, characterized in that: The solenoid valve further comprises: A bracket, mounted on the mounting opening and fixedly connected to the connecting pipe; An electromagnet, fixedly mounted on the bracket; A moving iron core is magnetically matched with the electromagnet; the valve plug is arranged at one end of the moving iron core away from the electromagnet; and A spring connects the valve plug and the bracket.

10. A gas equipment, characterized in that: It comprises a burner and an air distribution rod assembly as claimed in any one of claims 1 to 9, wherein a nozzle of the air distribution rod assembly is connected to an air inlet of the burner.

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