Nozzle assembly capable of adjusting flow and gas appliance

Abstract

The utility model relates to a flow-adjustable nozzle assembly and a gas appliance. The nozzle assembly capable of adjusting the flow comprises an adjustable nozzle body, the interior of the adjustable nozzle body is sequentially communicated with an air inlet hole section, a ventilation hole section, an adjusting hole section and an air outlet hole section in the air inlet direction, and the air inlet hole section, the air outlet hole section and the adjusting hole section extend outwards; the air inlet blocking piece is internally provided with a blocking piece air inlet hole and is arranged in the air inlet hole section; a first adjusting air hole and a second adjusting air hole are communicated with the interior of the porous adjusting bolt in the air inlet direction, and the first adjusting air hole and the second adjusting air hole extend to the outside. According to the nozzle assembly capable of adjusting the flow and the gas appliance, switching of different gas types and stepless adjustment of the gas flow can be achieved under the condition that the whole nozzle is not replaced, and the technical problem urgently needing to be solved in the field is solved.

Description

Technical Field

[0001] This utility model relates to the field of gas equipment technology, and in particular to an adjustable flow nozzle assembly and a gas appliance. Background Technology

[0002] In the current field of gas equipment, there are many technological limitations and unmet needs.

[0003] First, the diversity of gas types poses challenges to equipment use. Different gases, such as natural gas and liquefied petroleum gas (LPG), differ significantly in operating pressure, density, and calorific value. This means that existing gas appliances generally cannot maintain ideal performance indicators such as thermal efficiency and heat load after switching from one gas to another without completely replacing the nozzle. For example, in cooking stoves, when switching from piped natural gas to bottled LPG, the different characteristics of the two often prevent existing stoves from directly adapting to the change, potentially leading to incomplete combustion, unstable heat, and other problems that affect cooking results and energy efficiency.

[0004] Secondly, natural gas and liquefied petroleum gas (LPG) have significant differences in flow rate requirements. Because natural gas has a lower calorific value and operating pressure compared to LPG, it requires a larger flow rate under the same heat load. This necessitates equipment capable of adjusting flow rates according to the characteristics of different gases. However, most current equipment lacks this flexible flow rate adjustment function, failing to meet users' needs under varying gas conditions.

[0005] In practical applications, such as domestic and international stoves, heaters, ovens, and their ODS devices, users often need to switch gas types or adjust gas flow. However, current technology cannot easily achieve these operations, often requiring the removal or replacement of the entire nozzle. This is not only cumbersome, increasing user costs and time, but may also affect the stability and safety of the equipment, thus requiring improvement. Utility Model Content

[0006] To overcome at least one of the defects described in the prior art, according to one aspect of the present invention, an adjustable flow nozzle assembly is provided, comprising:

[0007] The adjustable nozzle body has an air inlet section, a ventilation section, an adjustment section and an air outlet section connected sequentially along the air inlet direction inside, and the air inlet section, air outlet section and adjustment section extend to the outside.

[0008] An air intake plug has an air intake hole inside and is located within the air intake hole section;

[0009] The hole adjusting bolt and the non-hole adjusting bolt, the inside of the hole adjusting bolt is communicated with adjusting hole one and adjusting hole two in the air inlet direction, and adjusting hole one and adjusting hole two extend to the outside;

[0010] The nozzle assembly has adjusting mode one and adjusting mode two;

[0011] In adjusting mode one, the hole adjusting bolt is screwed in the adjusting hole section, so that the nozzle assembly has large flow state and small flow state; in the large flow state, the hole adjusting bolt is staggered with the air outlet hole section, so that the adjusting hole section and the air outlet hole section are communicated; in the small flow state, the adjusting hole two of the hole adjusting bolt and the air outlet hole section are communicated;

[0012] In adjusting mode two, the non-hole adjusting bolt is screwed in the adjusting hole section, so that the nozzle assembly has large flow state and zero flow state; in the large flow state, the non-hole adjusting bolt is staggered with the air outlet hole section, so that the adjusting hole section and the air outlet hole section are communicated; in the zero flow state, the non-hole adjusting bolt blocks the air outlet hole section.

[0013] In an embodiment of the present application, the adjusting hole section includes adjusting hole one section and adjusting hole two section in communication, the diameter of the adjusting hole one section is smaller than the diameter of the adjusting hole two section, the adjusting hole one section and the air outlet hole section are communicated, and the adjusting hole two section extends to the outside;

[0014] The hole adjusting bolt has threaded section one screwed with the adjusting hole one section and driving part one fixed with the threaded section one, the diameter of the driving part one is larger than the diameter of the adjusting hole one section.

[0015] In an embodiment of the present application, a sealing ring one is arranged between the driving part one of the hole adjusting bolt and the adjusting hole two section.

[0016] In an embodiment of the present application, the adjusting hole one is communicated with the middle part of the adjusting hole two, and the axial direction of the adjusting hole one and the axial direction of the adjusting hole one are arranged perpendicularly.

[0017] In an embodiment of the present application, the adjusting hole one is communicated with adjusting hole section one and adjusting hole section two in the air inlet direction, the adjusting hole section two is communicated with the adjusting hole two, and the adjusting hole section one extends to the outside; the diameter of the adjusting hole section two is larger than the diameter of the adjusting hole section one.

[0018] In an embodiment of the present application, the non-hole adjusting bolt has threaded section two screwed with the adjusting hole one section and driving part two fixed with the threaded section two, the diameter of the driving part two is larger than the diameter of the adjusting hole one section.

[0019] In an embodiment of the present application, a sealing ring two is arranged between the driving part two of the non-hole adjusting bolt and the adjusting hole two section.

[0020] In an embodiment of the present application, the air inlet hole section comprises an air inlet hole one section and an air inlet hole two section which are connected in series along the air inlet direction, the air inlet hole one section is connected with the air hole section, and the air inlet hole two section extends to the outside; the air inlet baffle is arranged in the air inlet hole one section, and the diameter of the air inlet hole two section is greater than the diameter of the air inlet hole one section.

[0021] In an embodiment of the present application, the adjusting hole section is arranged vertically in the adjustable nozzle body.

[0022] The air outlet hole section and the air inlet hole section are arranged horizontally in the adjustable nozzle body.

[0023] The air hole section is arranged obliquely downward along the air inlet direction in the adjustable nozzle body.

[0024] According to another aspect of the present application, a gas appliance is provided, comprising the adjustable flow nozzle assembly.

[0025] In summary, the adjustable flow nozzle assembly and the gas appliance provided by the present application have the following technical effects:

[0026] The present application develops an adjustable flow nozzle assembly and a gas appliance, which can realize the switching of different gas types and the stepless adjustment of gas flow without replacing the entire nozzle, so as to solve the technical problems in the field. This technical innovation greatly improves the universality and convenience of gas equipment, meets the needs of users in different scenarios, improves energy utilization efficiency, and has important practical significance and market value. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 FIG. 1 is a structural schematic view of the nozzle assembly of the present application;

[0028] Figure 2 FIG. 2 is an internal cross-sectional view of the nozzle assembly of the present application in a large flow state in the adjusting mode one;

[0029] Figure 3 FIG. 3 is an internal cross-sectional view of the nozzle assembly of the present application in a small flow state in the adjusting mode one;

[0030] Figure 4 FIG. 4 is an internal cross-sectional view of the nozzle assembly of the present application in a large flow state in the adjusting mode two;

[0031] Figure 5 FIG. 5 is an internal cross-sectional view of the nozzle assembly of the present application in a zero flow state in the adjusting mode two;

[0032] Figure 6It is the exploded view of the inside of the nozzle assembly in the adjusting mode one of the embodiment of the utility model;

[0033] Drawing: 1-adjustable nozzle body, 11-inlet hole section, 111-inlet hole one section, 112-inlet hole two section, 12-vent hole section, 13-adjusting hole section, 131-adjusting hole one section, 132-adjusting hole two section, 14-outlet hole section, 2-inlet blocking piece, 21-blocking piece inlet hole, 3-hole adjusting bolt, 31-adjusting air hole one, 311-adjusting air hole section one, 312-adjusting air hole section two, 32-adjusting air hole two, 33-thread section one, 34-driving part one, 4-sealing ring one, 5-holeless adjusting bolt, 51-thread section two, 52-driving part two, 6-sealing ring two. DETAILED DESCRIPTION

[0034] In order to better understand and implement, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model.

[0035] In the description of the utility model, it needs to be explained that the orientation or position relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs. The terms used in the specification of the utility model herein are only for the purpose of describing the specific embodiments and are not intended to limit the utility model.

[0037] In order to better understand the new idea of the present application, the problems encountered before the present application are described first. Users often face the situation of needing to switch gas types or adjust gas flow, but the existing technology cannot conveniently realize these operations, often needing to disassemble or replace the entire nozzle, which not only is cumbersome to operate, increases the use cost and time cost of users, but also may have certain influence on the stability and safety of the equipment, and there is room for improvement.

[0038] Therefore, the application develops a nozzle assembly with adjustable flow to enable switching of different types of gas and stepless adjustment of gas flow without replacing the entire nozzle, thereby solving the technical problems in the field. This technical innovation greatly improves the versatility and convenience of gas equipment, meets the needs of users in different scenarios, improves energy utilization efficiency, and has important practical significance and market value.

[0039] For a better understanding of the present application, the following describes the application in conjunction with Figures 1-6 Various specific solutions of the present application are described.

[0040] In a specific solution, the nozzle assembly with adjustable flow comprises:

[0041] The adjustable nozzle body 1 has an air inlet hole section 11, an air passage hole section 12, an adjustment hole section 13, and an air outlet hole section 14 connected in sequence in the air inlet direction inside the body, and the air inlet hole section 11, the air outlet hole section 14, and the adjustment hole section 13 extend to the outside;

[0042] The air inlet baffle 2 has a baffle air inlet hole 21 inside and is arranged in the air inlet hole section 11;

[0043] The hole adjustment bolt 3 and the non-hole adjustment bolt 5 have an adjustment air hole one 31 and an adjustment air hole two 32 connected in sequence in the air inlet direction inside the hole adjustment bolt 3, and the adjustment air hole one 31 and the adjustment air hole two 32 extend to the outside;

[0044] The nozzle assembly has an adjustment mode one and an adjustment mode two;

[0045] In the adjustment mode one, the hole adjustment bolt 3 is threadedly connected in the adjustment hole section 13, so that the nozzle assembly has a large flow state and a small flow state; in the large flow state, the hole adjustment bolt 3 is offset from the air outlet hole section 14, so that the adjustment hole section 13 and the air outlet hole section 14 are connected; in the small flow state, the adjustment air hole two 32 of the hole adjustment bolt 3 and the air outlet hole section 14 are connected;

[0046] In the adjustment mode two, the non-hole adjustment bolt 5 is threadedly connected in the adjustment hole section 13, so that the nozzle assembly has a large flow state and a zero flow state; in the large flow state, the non-hole adjustment bolt 5 is offset from the air outlet hole section 14, so that the adjustment hole section 13 and the air outlet hole section 14 are connected; in the zero flow state, the non-hole adjustment bolt 5 blocks the air outlet hole section 14.

[0047] It can be seen that the nozzle assembly has two different adjustment modes, adjustment mode one and adjustment mode two, to adapt to different user scenarios in actual use.

[0048] When the user has the need to adjust between large and small flow, the nozzle assembly can be switched to adjustment mode one, that is, the threaded connection of the hole adjustment bolt 3 in the adjustment hole section 13, at this time, the nozzle assembly has two different working states-large flow state and small flow state.

[0049] When the nozzle assembly needs to be in a large flow state, the hole adjustment bolt 3 can be moved outward along the adjustment hole section 13, for example, in the illustration, the hole adjustment bolt 3 can be rotated in reverse, so that the hole adjustment bolt 3 moves upward, and the hole adjustment bolt 3 is misaligned with the outlet hole section 14. At this time, the inlet hole section 11, the ventilation hole section 12, the adjustment hole section 13 and the outlet hole section 14 are completely connected, and the gas can smoothly pass through the block inlet hole 21 of the inlet block 2 into the inlet hole section 11, and then pass through the ventilation hole section 12, the adjustment hole section 13 and the outlet hole section 14 in turn. Since the hole adjustment bolt 3 has the least resistance to gas flow at this time, the maximum flow of gas is achieved.

[0050] When the nozzle assembly needs to be in a small flow state, the hole adjustment bolt 3 can be gradually moved inward in the adjustment hole section 13 based on the large flow state, for example, in the illustration, the hole adjustment bolt 3 can be rotated forward, so that the hole adjustment bolt 3 moves downward. When adjusted to a certain extent, the adjustment hole two 32 of the hole adjustment bolt 3 is connected with the outlet hole section 14. At this time, after the gas enters from the block inlet hole 21 of the inlet block 2, it passes through the ventilation hole section 12 and the adjustment hole section 13, and can only flow to the outlet hole section 14 through the adjustment hole two 32 of the hole adjustment bolt 3. Since the adjustment hole two 32 has a relatively small aperture (compared to the channel in the fully open state), the flow of gas is limited, and the nozzle assembly is in a state of minimum flow.

[0051] When the user has the need to adjust between large and zero flow, the nozzle assembly can be switched to adjustment mode two, that is, the threaded connection of the non-hole adjustment bolt 5 in the adjustment hole section 13, at this time, the nozzle assembly has two different working states-large flow state and zero flow state.

[0052] When the nozzle assembly needs to be in a large flow state, the non-hole adjustment bolt 5 can be moved outward along the adjustment hole section 13, for example, in the illustration, the non-hole adjustment bolt 5 can be rotated in reverse, so that the non-hole adjustment bolt 5 moves upward, and the non-hole adjustment bolt 5 is misaligned with the outlet hole section 14. At this time, the inlet hole section 11, the ventilation hole section 12, the adjustment hole section 13 and the outlet hole section 14 are completely connected, and the gas can smoothly pass through the block inlet hole 21 of the inlet block 2 into the inlet hole section 11, and then pass through the ventilation hole section 12, the adjustment hole section 13 and the outlet hole section 14 in turn. Since the non-hole adjustment bolt 5 has the least resistance to gas flow at this time, the maximum flow of gas is achieved.

[0053] When it is necessary to make the nozzle assembly in a zero-flow state, the non-hole adjusting bolt 5 can be continuously rotated in the positive direction on the basis of the large-flow state, so that the non-hole adjusting bolt 5 is continuously moved inward until the gas hole section 14 is completely blocked. In this way, after the gas enters from the gas inlet hole section 11, it cannot pass through the adjusting hole section 13 to reach the gas outlet hole section 14, so that the gas flow is zero, that is, the state of completely cutting off the gas.

[0054] It should be noted that since both the hole adjusting bolt 3 and the non-hole adjusting bolt 5 are threadedly connected with the adjusting hole section 13, the switching between the adjustment mode I and the adjustment mode II is very convenient and fast.

[0055] It can be known that in the specific scheme, stepless adjustment can be realized, for example, the nozzle assembly can realize stepless adjustment from large flow to small flow through the precise movement of the hole adjusting bolt 3, or realize stepless adjustment from large flow to zero flow through the non-hole adjusting bolt 5. Such stepless adjustment function can meet the fine needs of users for gas flow in different scenarios. For example, in the use of the stove, the user can select different adjustment modes according to different cooking needs, greatly improving the convenience and flexibility of cooking.

[0056] And it can also adapt to different kinds of gas, for example, for different kinds of gas, such as pipeline natural gas and bottled liquefied gas, their working gas pressure, density, heat value and the like are different, and the required flow is also different. The nozzle assembly can be specifically switched to the adjustment mode I, and the characteristics of different gases are adapted through the adjustment of the hole adjusting bolt 3. For example, when switching from using natural gas to liquefied gas, through the operation of the hole adjusting bolt 3, the flow can be adjusted to a state suitable for liquefied gas, so that the performance indicators such as thermal efficiency and thermal load of the whole machine are within a reasonable range, avoiding the problem of performance decline or instability of the equipment due to gas switching, and improving the versatility and compatibility of the equipment.

[0057] At the same time, the operation is also simple, and the user only needs to rotate the hole adjusting bolt 3 or the non-hole adjusting bolt 5 to realize the adjustment and switching of the gas flow, which not only reduces the use difficulty and cost of the user, but also improves the ease of use and reliability of the equipment.

[0058] It can also improve the energy utilization efficiency, accurately adjust the gas flow according to the actual needs, and avoid the waste of energy. Under the appropriate gas flow, the combustion is more complete, which improves the energy utilization efficiency, saves energy, reduces the use cost of the user, and also reduces the pollution to the environment.

[0059] In practical applications, it can also be widely applied to various gas appliances, such as stoves, heaters, ovens and other whole machine products or ODS (Ozone-Depleting Substances) devices. This wide applicability makes the nozzle assembly have great market potential and application value, which can meet the needs of different fields and users for gas flow regulation, and promote the technical progress and development of the gas equipment industry.

[0060] It should be noted that the inlet hole section 11, the outlet hole section 14 and the adjustment hole section 13 extend outward, specifically to the outside of the adjustable nozzle body 1, which can be specifically referred to Figures 2-6 , and the adjustment air hole one 31 and the adjustment air hole two 32 extend outward, specifically to the outside of the hole-adjusting screw 3, which can be specifically referred to Figure 2 、 Figure 3 and Figure 6 .

[0061] In a specific scheme, the adjustment hole section 13 includes the adjustment hole one section 131 and the adjustment hole two section 132 in communication, the adjustment hole one section 131 and the outlet hole section 14 are in communication, and the adjustment hole two section 132 extends outward. Such an arrangement facilitates the assembly of the hole-adjusting screw 3 or the non-hole-adjusting screw 5.

[0062] In a specific scheme, the hole-adjusting screw 3 has a threaded section one 33 threadedly connected with the adjustment hole one section 131 and a driving part one 34 fixed with the threaded section one 33, the diameter of the adjustment hole one section 131 is smaller than the diameter of the adjustment hole two section 132, and the diameter of the driving part one 34 is greater than the diameter of the adjustment hole one section 131.

[0063] In the adjustment mode one, when the hole-adjusting screw 3 is rotated, the hole-adjusting screw 3 will move axially in the adjustment hole section 13 due to the action of the thread. The diameter of the driving part one 34 is greater than the diameter of the adjustment hole one section 131, which plays a limiting and convenient operation role. For example, when the hole-adjusting screw 3 is rotated in the positive direction of the thread, the hole-adjusting screw 3 will gradually move to the inside of the adjustment hole section 13 (i.e. move in the direction close to the outlet hole section 14); on the contrary, when the hole-adjusting screw 3 is rotated in the reverse direction of the thread, the hole-adjusting screw 3 will move outward (i.e. move in the direction away from the outlet hole section 14), so as to realize the flow regulation of the two different working states described above - the large flow state and the small flow state.

[0064] It can be seen that the communication design of the first adjustment hole segment 131 and the second adjustment hole segment 132 and the matching structure with the hole adjustment bolt 3 ensure the stability of the entire adjustment process. For example, the smaller diameter of the first adjustment hole segment 131 is connected with the threaded segment one 33 of the hole adjustment bolt 3, so that the threaded connection is more compact and reliable, and is not easy to loosen or displace, thereby ensuring the accuracy and stability of the gas flow adjustment. Also, for example, the driving part one 34 is larger in diameter than the first adjustment hole segment 131, which can provide a better force point and stability when operating the hole adjustment bolt 3, preventing the hole adjustment bolt 3 from being excessively inserted or removed from the adjustment hole segment 13, and improving the reliability and service life of the device.

[0065] In a specific scheme, a sealing ring one 4 is arranged between the driving part one 34 of the hole adjustment bolt 3 and the second adjustment hole segment 132.

[0066] When the hole adjustment bolt 3 rotates and moves in the adjustment hole segment 13, there will be a certain gap between the driving part one 34 and the second adjustment hole segment 132, and the sealing ring one 4 is installed at this position, which is usually elastic and flexible in material. Therefore, during the static or movement of the hole adjustment bolt 3, the sealing ring one 4 will be extruded by the driving part one 34 and the second adjustment hole segment 132, and the sealing ring one 4 will be tightly filled in the gap between the driving part one 34 and the second adjustment hole segment 132 through its elastic deformation, thereby forming a sealing barrier.

[0067] This can prevent gas from leaking out of the gap between the hole adjustment bolt 3 and the second adjustment hole segment 132, ensuring that the gas can only flow through the designed channel (i.e. through the air inlet plug 2, the air hole of the hole adjustment bolt 3, etc.), achieving accurate control and safe delivery of the gas flow. Therefore, by arranging the sealing ring one 4 between the driving part one 34 and the second adjustment hole segment 132, the leakage of gas from this part can be effectively prevented, ensuring the safe use of gas equipment, protecting the safety of life and property of users and environmental safety.

[0068] In a specific scheme, the non-hole adjustment bolt 5 has a threaded segment two 51 screwed with the first adjustment hole segment 131 and a driving part two 52 fixed with the threaded segment two 51, and the diameter of the driving part two 52 is larger than that of the first adjustment hole segment 131.

[0069] In the second adjustment mode, when the non-hole adjustment bolt 5 is rotated, the non-hole adjustment bolt 5 will move along the axial direction in the adjustment hole section 13 due to the action of the thread. The diameter of the driving part two 52 is larger than the adjustment hole one section 131, which plays a limiting and convenient operation role. For example, when the non-hole adjustment bolt 5 is rotated in the positive direction of the thread, the non-hole adjustment bolt 5 will gradually move to the inside of the adjustment hole section 13 (i.e. move in the direction close to the gas outlet hole section 14); on the contrary, when the non-hole adjustment bolt 5 is rotated in the reverse direction of the thread, the non-hole adjustment bolt 5 will move outward (i.e. move in the direction away from the gas outlet hole section 14), so as to realize the flow adjustment of the two different working states described above - the large flow state and the zero flow state.

[0070] It can be seen that the communication design of the adjustment hole one section 131 and the adjustment hole two section 132 and the matching structure with the non-hole adjustment bolt 5 ensure the stability of the entire adjustment process. For example, the smaller diameter of the adjustment hole one section 131 and the connection with the thread section two 51 of the non-hole adjustment bolt 5 make the thread connection more tight and reliable, and it is not easy to appear loose or displacement deviation, so as to ensure the accuracy and stability of the gas flow adjustment. Also, for example, the driving part two 52 has a larger diameter than the adjustment hole one section 131, which can provide a better force point and stability when operating the non-hole adjustment bolt 5, prevent the non-hole adjustment bolt 5 from entering or coming out of the adjustment hole section 13 too much, and improve the reliability and service life of the device.

[0071] In a specific scheme, a sealing ring two 6 is arranged between the driving part two 52 of the non-hole adjustment bolt 5 and the adjustment hole two section 132.

[0072] When the non-hole adjustment bolt 5 rotates and moves in the adjustment hole section 13, there will be a certain gap between the driving part two 52 and the adjustment hole two section 132, and the sealing ring two 6 is installed at this position, and the material thereof usually has a certain elasticity and flexibility. Therefore, during the static or movement of the non-hole adjustment bolt 5, the sealing ring two 6 will be extruded by the driving part two 52 and the adjustment hole two section 132, and the sealing ring two 6 will tightly fill the gap between the driving part two 52 and the adjustment hole two section 132 through the elastic deformation of itself, so as to form a sealing barrier.

[0073] In this way, the leakage of gas from the gap between the non-hole adjustment bolt 5 and the adjustment hole two section 132 can be prevented, and the accurate control and safe transportation of the gas flow can be realized. Therefore, by arranging the sealing ring two 6 between the driving part two 52 and the adjustment hole two section 132, the leakage of gas from this part can be effectively prevented, and the use safety of the gas equipment is ensured, and the safety of life and property and environmental safety of the user is protected.

[0074] In a specific embodiment, the air inlet hole section 11 includes an air inlet hole one section 111 and an air inlet hole two section 112 in communication along the air inlet direction, the air inlet hole one section 111 is in communication with the air hole section 12, and the air inlet hole two section 112 extends outward; the air inlet baffle 2 is arranged in the air inlet hole one section 111, and the diameter of the air inlet hole two section 112 is greater than that of the air inlet hole one section 111.

[0075] Due to the design that the diameter of the air inlet hole two section 112 is greater than that of the air inlet hole one section 111, when the gas flows from the air inlet hole two section 112 to the air inlet hole one section 111, the flow rate of the gas changes. According to the principle of fluid mechanics, when the flow cross-section becomes smaller (from the air inlet hole two section 112 to the air inlet hole one section 111), the flow rate increases and the pressure decreases, which helps the gas enter the air inlet hole one section 111 better and flow to the air inlet baffle 2. After the gas passes through the baffle air inlet hole 21 of the air inlet baffle 2, it enters the air hole section 12. The air inlet baffle 2 plays a certain role in flow regulation and pressure stabilization here. Through the size and structure of the baffle air inlet hole 21, the flow rate and pressure of the gas can be preliminarily adjusted, so that the gas enters the subsequent adjustment hole section 13 and air outlet hole section 14 in a relatively stable state.

[0076] It can be seen that the design that the diameter of the air inlet hole two section 112 is greater than that of the air inlet hole one section 111 utilizes the principle of fluid mechanics, so that the flow rate and pressure of the gas can be reasonably changed when the gas enters the air inlet hole section 11. This change helps the gas flow more smoothly in the subsequent channel, reduces the resistance and energy loss in the gas flow process, improves the delivery efficiency of the gas, and enables the gas to reach the gas user such as a burner more quickly and stably, thereby improving the working efficiency and performance of the entire gas equipment.

[0077] In a specific embodiment, the adjustment air hole one 31 is in communication with the middle of the adjustment air hole two 32, and the axial direction of the adjustment air hole one 31 and the axial direction of the adjustment air hole one 31 are perpendicular. From the perspective of manufacturing and assembly, the perpendicular communication structure of the adjustment air hole one 31 and the adjustment air hole two 32 is relatively simple and easy to implement. During the processing of the hole adjustment bolt 3, the adjustment air hole one 31 and the adjustment air hole two 32 can be conveniently manufactured through reasonable process design and processing method, and the vertical communication relationship and precision requirements between them can be ensured. This simple and effective structure design reduces production cost and manufacturing difficulty, improves production efficiency and consistency of product quality.

[0078] In a specific embodiment, the adjustment air hole one 31 is in communication with an adjustment air hole section one 311 and an adjustment air hole section two 312 along the air inlet direction, the adjustment air hole section two 312 is in communication with the adjustment air hole two 32, and the adjustment air hole section one 311 extends outward; the diameter of the adjustment air hole section two 312 is greater than that of the adjustment air hole section one 311.

[0079] With such an arrangement, the diameter difference between the first adjustment orifice segment 311 and the second adjustment orifice segment 312 is designed to effectively optimize the flow rate and pressure distribution of the gas in the first adjustment orifice 31. For example, the smaller diameter of the first adjustment orifice segment 311 causes the gas to accelerate upon entry, which helps to increase the kinetic energy of the gas, enabling it to flow more smoothly into the second adjustment orifice segment 312. Also for example, the larger diameter of the second adjustment orifice segment 312 causes the gas to decelerate and the pressure to increase, thereby providing a more stable gas supply pressure for the second adjustment orifice 32. Such optimized flow rate and pressure distribution is very important for the normal operation of the gas appliance, as it can improve the efficiency of gas delivery, reduce energy loss, and ensure that the gas can enter the outlet orifice segment 14 at an appropriate flow rate and pressure under different flow adjustment states, achieving stable combustion and appliance operation.

[0080] In a specific embodiment, the adjustment orifice segment 13 is arranged vertically within the adjustable nozzle body 1.

[0081] When the adjustment orifice segment 13 is arranged vertically within the adjustable nozzle body 1, the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5 rotates and moves along the adjustment orifice segment 13 in the vertical direction. Upon rotation of the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5, due to the action of the threads, the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5 will rise or fall in the vertical direction. When the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5 rises (e.g., counter-rotation), it gradually moves away from the outlet orifice segment 14, causing the effective cross-sectional area of the gas passage to increase, the gas flow to increase, and thus achieving adjustment from smaller flow to larger flow. Conversely, when the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5 falls (e.g., forward rotation), it approaches the outlet orifice segment 14, partially or completely obstructing and restricting the gas passage, resulting in a decrease or complete cut-off of the gas flow.

[0082] Moreover, the vertically arranged adjustment orifice segment 13 provides a stable movement track for the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5, enabling the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5 to move accurately in the vertical direction, thereby achieving precise control of the gas flow. Such precise adjustment is very important for the gas appliance, whether in a cooking scenario requiring high heat or a simmering scenario requiring low heat, it can accurately meet the user's needs. For example, in a stove, the user can rotate the perforated adjustment bolt 3 or the non-perforated adjustment bolt 5 to accurately adjust the size of the flame, achieving seamless switching from high heat for stir-frying to low heat for simmering, improving the quality and efficiency of cooking.

[0083] In a specific embodiment, the outlet hole section 14 and the inlet hole section 11 are horizontally arranged in the adjustable nozzle body 1. The horizontally arranged outlet hole section 14 and the inlet hole section 11 help to maintain the stability of the gas flow during the flow process, as the gas enters and flows out of the nozzle assembly in a horizontal direction, reducing the interference of the gas flow caused by the change of gravity in the vertical direction or other factors. This stable flow state can ensure that the gas can enter the burner at a relatively uniform speed and pressure under different flow adjustment states, thereby improving the efficiency and stability of combustion. For example, during the use of the stove, stable gas supply can make the flame more uniform and stable, avoiding the occurrence of flame jumping or unstable combustion, and improving the quality and safety of cooking.

[0084] In a specific embodiment, the vent hole section 12 is arranged downwardly inclined along the gas inlet direction in the adjustable nozzle body 1.

[0085] When the gas enters from the inlet hole section 11, it enters the inclined vent hole section 12. Due to the downward inclination of the vent hole section 12 along the gas inlet direction, the gas naturally flows downward along the vent hole section 12 under the dual action of its own pressure and gravity. This inclined arrangement makes the gas flow direction have a certain coordination with the direction of gravity, reducing the resistance of the gas flow in the vent hole section 12. The flow rate of the gas in the vent hole section 12 will vary depending on factors such as the inclination angle and the inlet pressure. When the inlet pressure is stable, the greater the inclination angle, the greater the flow rate component of the gas under the action of gravity.

[0086] It can be seen that the downward inclination of the vent hole section 12 utilizes the action of gravity to assist gas flow, making the gas flow in the vent hole section 12 more smooth and reducing the flow resistance. In practical applications, this helps to ensure that the gas can reach the adjustment hole section 13 and the outlet hole section 14 more quickly and stably, providing protection for the efficient operation of the gas equipment.

[0087] The present application also discloses a gas appliance comprising the above-mentioned adjustable flow nozzle assembly. The gas appliance can specifically include a stove, a heater, an oven, or an ODS (Ozone-Depleting Substances) device.

[0088] It can be seen that this gas appliance, due to the adoption of the adjustable flow nozzle assembly, can adapt to different types of gas (such as natural gas and liquefied gas). Moreover, the gas appliance can be used in multiple functional modes, such as different cooking methods of the stove, different heating power settings of the heater, different baking temperature requirements of the oven, etc., and by simply adjusting the flow of the nozzle assembly, multiple functions can be achieved, improving the versatility and multifunctionality of the equipment.

[0089] And the adjustable flow nozzle assembly can realize stepless adjustment from large flow to small flow, or stepless adjustment from large flow to zero flow to completely cut off the gas. This makes the gas appliance accurately control the gas flow in different use scenarios, thereby improving energy utilization efficiency. For example, when the stove is simmering or the heater is constant temperature control, it can run with the minimum necessary gas flow, avoiding waste of energy. In the oven, accurate flow control can also ensure accurate temperature control, improve the quality of baking and roasting, and save gas.

[0090] The technical means disclosed by the utility model scheme is not limited to the technical means disclosed by the above-mentioned embodiments, and also includes technical solutions composed of any combination of the above technical features. It should be noted that, for ordinary skilled persons in the art, without departing from the principles of the utility model, a number of improvements and refinements can be made, and these improvements and refinements are also considered within the protection scope of the utility model.

Claims

1. An adjustable flow nozzle assembly comprising: The adjustable nozzle body (1) has an air inlet hole section (11), an air passage hole section (12), an adjusting hole section (13) and an air outlet hole section (14) in sequence in the air inlet direction, and the air inlet hole section (11), the air outlet hole section (14) and the adjusting hole section (13) extend to the outside. The air inlet blocking piece (2) has an air inlet hole (21) in the inside and is arranged in the air inlet hole section (11). The hole adjusting bolt (3) and the non-hole adjusting bolt (5) are arranged in the adjusting hole section (13), and the hole adjusting bolt (3) has an adjusting air hole one (31) and an adjusting air hole two (32) in sequence in the air inlet direction. The nozzle assembly has an adjusting mode one and an adjusting mode two. In the adjusting mode one, the hole adjusting bolt (3) is screwed in the adjusting hole section (13) to make the nozzle assembly have a large flow state and a small flow state; in the large flow state, the hole adjusting bolt (3) is staggered with the air outlet hole section (14) to make the adjusting hole section (13) and the air outlet hole section (14) communicate; in the small flow state, the adjusting air hole two (32) of the hole adjusting bolt (3) and the air outlet hole section (14) communicate. In the adjusting mode two, the non-hole adjusting bolt (5) is screwed in the adjusting hole section (13) to make the nozzle assembly have a large flow state and a zero flow state; in the large flow state, the non-hole adjusting bolt (5) is staggered with the air outlet hole section (14) to make the adjusting hole section (13) and the air outlet hole section (14) communicate; in the zero flow state, the non-hole adjusting bolt (5) blocks the air outlet hole section (14). The adjusting hole section (13) includes an adjusting hole one section (131) and an adjusting hole two section (132) in communication, the diameter of the adjusting hole one section (131) is smaller than that of the adjusting hole two section (132), the adjusting hole one section (131) and the air outlet hole section (14) communicate, and the adjusting hole two section (132) extends to the outside.

2. An adjustable flow nozzle assembly as defined in claim 1 wherein, The hole adjusting bolt (3) has a threaded section one (33) screwed with the adjusting hole one section (131) and a driving part one (34) fixed with the threaded section one (33), and the diameter of the driving part one (34) is larger than that of the adjusting hole one section (131). A sealing ring one (4) is arranged between the driving part one (34) of the hole adjusting bolt (3) and the adjusting hole two section (132).

3. An adjustable flow nozzle assembly as defined in claim 2 wherein, The adjusting air hole one (31) is arranged in the middle of the adjusting air hole two (32) and the axial direction of the adjusting air hole one (31) is perpendicular to the axial direction of the adjusting air hole one (31).

4. A flow-regulated nozzle assembly according to any one of claims 1-3, characterized in that The adjusting air hole one (31) has an adjusting air hole section one (311) and an adjusting air hole section two (312) in sequence in the air inlet direction, the adjusting air hole section two (312) communicates with the adjusting air hole two (32), and the adjusting air hole section one (311) extends to the outside; the diameter of the adjusting air hole section two (312) is larger than that of the adjusting air hole section one (311).

5. An adjustable flow nozzle assembly as defined in claim 4 wherein, ​ 6. An adjustable flow nozzle assembly as defined in claim 2 wherein, The non-hole adjusting bolt (5) has a threaded section two (51) screwed with an adjusting hole section one (131) and a driving section two (52) fixed with the threaded section two (51), the diameter of the driving section two (52) is larger than the adjusting hole section one (131).

7. An adjustable flow nozzle assembly as defined in claim 6 wherein, The non-hole adjusting bolt (5) is provided with a sealing ring two (6) between the driving section two (52) and the adjusting hole section two (132).

8. A flow-regulated nozzle assembly according to any one of claims 1-3, 5-7, wherein, The air inlet hole section (11) includes an air inlet hole section one (111) and an air inlet hole section two (112) connected in the air inlet direction, the air inlet hole section one (111) is communicated with the air hole section (12), and the air inlet hole section two (112) extends to the outside; the air inlet blocking piece (2) is arranged in the air inlet hole section one (111), and the diameter of the air inlet hole section two (112) is larger than that of the air inlet hole section one (111).

9. A flow-regulated nozzle assembly according to any one of claims 1-3, 5-7, wherein, The adjusting hole section (13) is vertically arranged in the adjustable nozzle body (1); The air outlet hole section (14) and the air inlet hole section (11) are horizontally arranged in the adjustable nozzle body (1); The air hole section (12) is obliquely arranged downward in the air inlet direction in the adjustable nozzle body (1).

10. Gas appliance, characterised in that The adjustable flow nozzle assembly comprises the adjustable flow nozzle assembly according to any one of claims 1-9.

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