Nozzle hole verticality detection device

Abstract

The utility model relates to a nozzle hole verticality detection device, comprising a pedestal which comprises a first fixing part and a second fixing part which are oppositely arranged, and the first fixing part is used for fixing a nozzle to be detected; and the detection module comprises a detection piece and a control unit electrically connected with the detection piece, the detection piece is arranged on the second fixing part, and the detection piece is used for detecting a water column with a preset angle sprayed by the to-be-detected nozzle. According to the nozzle hole perpendicularity screening device, the detection speed and accuracy can be improved, and therefore the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of gas appliance technology, and in particular to a nozzle orifice verticality detection device. Background Technology

[0002] A flame nozzle is a device used to guide gas from a pipe to the combustion zone and spray it out in a specific manner to mix with air for combustion. Its main function is to control the flow rate and direction of the gas injection, ensuring that the gas can be fully mixed with air to form a stable and suitable flame, providing the necessary heat for cooking and other activities.

[0003] The verticality of a gas stove flame nozzle refers to the degree to which the central axis of the nozzle is perpendicular to the mounting plane of the gas stove. Ideally, the nozzle should be strictly perpendicular to the mounting plane, i.e., a verticality of 90 degrees. However, in actual production, installation, and use, factors such as processing precision, installation errors, or external forces may cause the nozzle to tilt to a certain extent, deviating from the vertical direction. If the nozzle's verticality deviates significantly, the gas may not be able to be sprayed in the designed direction and angle, resulting in insufficient mixing of gas and air, which in turn affects the thermal efficiency of the gas appliance and wastes gas resources. Therefore, nozzle verticality testing is a crucial step in the nozzle manufacturing process. In existing technologies, the verticality of the nozzle is often judged by visually observing whether the water column passes through a designated circular hole after the nozzle sprays a water jet. This method is labor-intensive, prone to misjudgment, and affects the accuracy and efficiency of the test. Utility Model Content

[0004] Therefore, it is necessary to provide a nozzle orifice verticality detection device that can improve the accuracy and efficiency of nozzle verticality detection to address the above problems.

[0005] A nozzle orifice perpendicularity screening device, comprising:

[0006] The base includes a first fixing part and a second fixing part disposed opposite to each other, wherein the first fixing part is used to fix the nozzle to be tested;

[0007] The detection module includes a detection element and a control unit electrically connected to the detection element. The detection element is disposed on the second fixing part and is used to detect the water column sprayed by the nozzle to be detected at a preset angle.

[0008] The aforementioned nozzle orifice verticality screening device has a base with opposing first and second fixing parts for fixing the nozzle to be tested and the testing component, respectively. The testing component detects the water column sprayed from the nozzle at a preset angle, accurately determining the verticality of the nozzle orifice. The testing component is electrically connected to the control unit, which can analyze and process the test data to achieve automated testing. It can efficiently screen nozzles that meet the accuracy requirements, reduce manual operation and observation during the screening process, improve testing efficiency, save manpower, and reduce errors and subjective factors caused by manual screening. This effectively prevents unqualified products from entering the next process, improving the yield rate of the production process. The testing process of this device is less affected by external factors, and the test results are consistent and efficient.

[0009] In one embodiment, the second fixing part has a first through hole facing the nozzle. The first through hole is used to allow a water column at a preset angle to pass through. The detection element is located on the side of the second fixing part away from the first fixing part and facing the first through hole. During detection, the nozzle to be detected sprays a water column at a preset angle that can pass through the first through hole and trigger the detection element.

[0010] In one embodiment, the detection element includes a detection plate and a micro switch. The middle part of the detection plate is rotatably connected to the second fixing part. The projection of the first end of the detection plate in the vertical direction coincides with the first through hole. The second end of the detection plate is used to trigger the micro switch.

[0011] In one embodiment, the device further includes a nozzle mounting base, and a detection plate support is provided on the second fixing part, wherein the detection plate is rotatably connected to the detection plate support.

[0012] In one embodiment, the detection plate is provided with a limiting portion; or,

[0013] The second fixing part is provided with a limiting part, and the limiting part at least partially overlaps with the projection of the detection plate in the vertical direction;

[0014] The limiting part is used to limit the rotation angle of the detection plate.

[0015] In one embodiment, the device further includes a nozzle mounting base facing the first through hole. The nozzle mounting base includes a nozzle mounting section and a straight pipe section. The straight pipe section is used to connect a water pipe, and the nozzle mounting section is used to mount a nozzle. The nozzle mounting base has a second through hole penetrating the nozzle mounting section and the straight pipe section. A third through hole is provided on the first fixing part, and the straight pipe section passes through the third through hole.

[0016] In one embodiment, the diameter of the nozzle mounting section gradually decreases along the straight pipe section toward the end of the nozzle mounting section.

[0017] In one embodiment, the nozzle mounting section is provided with a fastener for adjusting the force with which the nozzle mounting section clamps the nozzle.

[0018] In one embodiment, the control unit includes a PLC controller electrically connected to the micro switch.

[0019] In one embodiment, the detection module further includes an alarm that is electrically connected to the PLC controller. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the nozzle verticality detection device provided in an embodiment of the present invention;

[0022] Figure 2 This is a front view of a nozzle verticality detection device provided in an embodiment of the present invention;

[0023] Figure 3 This is a side view of a nozzle verticality detection device provided in an embodiment of the present invention;

[0024] Figure 4 This is a top view of a nozzle verticality detection device provided in an embodiment of the present invention;

[0025] Figure 5 A schematic diagram illustrating the detection principle of the nozzle verticality detection device provided in an embodiment of this utility model when the verticality is qualified.

[0026] Figure 6 A schematic diagram illustrating the detection principle of the nozzle verticality detection device provided in an embodiment of this utility model when the verticality is unqualified.

[0027] Figure 7 This is a front view of the base of a nozzle verticality detection device provided in an embodiment of the present invention;

[0028] Figure 8 A side view of the base of a nozzle verticality detection device provided in an embodiment of the present invention;

[0029] Figure 9 A top view of the base of a nozzle verticality detection device provided in an embodiment of the present invention;

[0030] Figure 10 A bottom view of the base of the nozzle verticality detection device provided in an embodiment of the present invention;

[0031] Figure 11 This is a front view of the detection plate support of a nozzle verticality detection device provided in an embodiment of the present invention;

[0032] Figure 12 A side view of the detection plate support of the nozzle verticality detection device provided in an embodiment of the present invention;

[0033] Figure 13 This is a schematic diagram of the detection plate structure of a nozzle verticality detection device provided in an embodiment of the present invention;

[0034] Figure 14 This is a schematic diagram of the structure of the detection plate and connecting shaft of the nozzle verticality detection device provided in an embodiment of the present invention;

[0035] Figure 15 A schematic diagram of the nozzle mounting base of a nozzle verticality detection device provided in an embodiment of this utility model;

[0036] Figure 16 A cross-sectional view of the nozzle mounting base of a nozzle verticality detection device provided in an embodiment of the present invention;

[0037] Figure 17 This is a top view of the nozzle mounting base of a nozzle verticality detection device provided in an embodiment of the present invention.

[0038] To make the above and other objects, features, advantages and embodiments of this utility model more apparent and understandable, the appended symbols are explained as follows:

[0039] 100, Base; 110, First fixing part; 111, Third through hole; 120, Second fixing part; 121, First through hole; 210, Detection plate; 211, Limiting part; 212, First end; 213, Second end; 214, Rotating shaft; 220, Detection plate support; 221, Shaft hole; 222, Base plate; 223, Support plate; 230, Micro switch; 300, Nozzle mounting base; 310, Nozzle mounting section; 320, Straight pipe section; 330, Second through hole; 400, Nozzle; 500, Water column. Detailed Implementation

[0040] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] See Figures 1 to 6 An embodiment of the present invention provides a nozzle orifice verticality screening device, comprising:

[0047] The base 100 includes a first fixing part 110 and a second fixing part 120 disposed opposite to each other, wherein the first fixing part 110 is used to fix the nozzle to be tested;

[0048] The detection module includes a detection element and a control unit electrically connected to the detection element. The detection element is disposed on the second fixing part 120 and is used to detect the water column sprayed by the nozzle to be detected at a preset angle.

[0049] The base 100 refers to the basic support structure of the screening device, providing a foundation for the installation and operation of other components, and may include components such as a workbench. The first fixing part 110 and the second fixing part 120 can be as follows: Figures 7 to 10 The integrated structure shown has the second fixing part 120 located above the first fixing part 110, and their projections in the vertical direction at least partially overlap. This allows the water jet 500 ejected from the nozzle 400 to pass through the first through hole 121 when the verticality is acceptable, and enables the detection module on the second fixing part 120 to detect its spray angle. Alternatively, it can be a split structure, with the two parts fixed at different positions on the base 100.

[0050] The aforementioned nozzle orifice verticality screening device has a base 100 with opposing first fixing parts 110 and second fixing parts 120, which are used to fix the nozzle to be tested and the testing component, respectively. The testing component detects the water column sprayed from the nozzle at a preset angle, which can accurately determine the verticality of the nozzle orifice. The testing component is electrically connected to the control unit, which can analyze and process the test data to achieve automated testing. It can efficiently screen nozzles that meet the accuracy requirements and reduce manual operation and observation during the screening process, thereby improving testing efficiency and saving manpower. At the same time, it can reduce the errors and subjective factors caused by manual screening, thus effectively preventing unqualified products from entering the next process and improving the yield rate of the production process. The testing process of this device is less affected by external factors, and the test results are consistent and the testing efficiency is high.

[0051] In an exemplary embodiment, the second fixing part 120 has a first through hole 121 facing the nozzle 400. The first through hole 121 is used for a water column at a preset angle to pass through. The detection element is located on the side of the second fixing part 120 away from the first fixing part 110 and facing the first through hole 121. During detection, the nozzle 400 to be detected sprays a water column at a preset angle that can pass through the first through hole 121 and trigger the detection element. The first through hole 121 faces the nozzle 400. When the water column sprayed by the nozzle 400 is within the preset angle range, it can pass through the first through hole 121 to trigger the detection element located on the side of the second fixing part 120 away from the first fixing part 110. When the sprayed water column is outside the preset angle range, it cannot pass through the first through hole 121. The detection element can detect the verticality of the nozzle 400 according to the triggering condition, and the detection process is fast and accurate. The detection element can be a sensor used to sense changes in displacement or other parameters, such as a micro switch 230, a pressure sensor, a Hall sensor, a photoelectric sensor, a piezoelectric sensor, or a combination of multiple sensors.

[0052] In an exemplary embodiment, the detection element includes a detection plate 210 and a micro switch 230. The middle portion of the detection plate 210 is rotatably connected to the second fixing portion 120. The projection of the first end 212 of the detection plate 210 in the vertical direction coincides with the first through hole 121. The second end 213 of the detection plate 210 is used to trigger the micro switch 230. The detection plate 210 is a plate-shaped component used to trigger the micro switch 230. The micro switch 230 is a switch that uses external mechanical force through a transmission element to cause an actuating spring to move instantaneously, thereby achieving circuit on / off control. The projection of the first end 212 of the detection plate 210 in the vertical direction coincides with the through hole, so that when the verticality of the nozzle 400 is qualified, the water column 500 can impact the surface of the detection plate 210. The projection of the second end 213 in the vertical direction coincides with the micro switch 230. When the first end 212 of the detection plate 210 is impacted by the water column 500 from below, the first end 212 moves upward and the second end 213 moves downward to trigger the micro switch 230, applying mechanical force to the micro switch 230, thereby connecting the motion trigger circuit. The state of the motion trigger circuit changes, and the detection module can quickly determine whether the water column 500 has impacted the detection plate 210 based on the state change, thereby determining whether the verticality of the nozzle 400 is qualified.

[0053] In an exemplary embodiment, a detection plate support 220 is provided on the second fixing part 120, and the detection plate 210 is rotatably connected to the detection plate support 220. The detection plate support 220 and the second fixing part 120 can be an integral structure or a separate structure. Figures 11 to 14 As shown, in some embodiments, the detection plate support 220 has a base plate 222, and the base plate 222 has upwardly extending support plates 223 on both sides. The support plates 223 are provided with shaft holes 221 for the rotating shaft 214 to pass through. The detection plate 210 is fixedly connected to the rotating shaft 214, and the lengths of the detection plate 210 on both sides of the connection may be unequal.

[0054] In one exemplary embodiment, a limiting portion 211 is provided on the detection plate 210; or, a limiting portion 211 is provided on the second fixing portion 120, the limiting portion 211 at least partially coinciding with the projection of the detection plate 210 in the vertical direction, for limiting the rotation angle of the detection plate 210. Figure 13In the illustrated embodiment, when the limiting part 211 is disposed on the detection plate 210, it can be located between the rotation shaft 214 and the second end 213. The size of the limiting part 211 is larger than the size of the first end 212 and the second end 213 of the detection plate 210, and also larger than the distance between the two support plates 223 of the detection plate support 220. In this way, after the second end 213 of the detection plate 210 rotates downward by a certain angle, the limiting part 211 can abut against the support plate 223, thereby preventing the detection plate 210 from rotating excessively. By reasonably setting the distance between the limiting part 211 and the rotation shaft 214, the rotation angle of the detection plate 210 can be controlled. The limiting part 211 can also be disposed between the first end 212 and the rotation shaft 214, or disposed on the detection plate support 220, so that after the first end 212 of the detection plate 210 rotates upward by a certain angle, the limiting part 211 abuts against the detection plate support 220, thereby limiting the rotation angle of the detection plate 210.

[0055] In one exemplary embodiment, the device further includes a nozzle mounting base 300, which faces the first through hole 121, such as... Figures 15 to 17 As shown, the nozzle mounting base 300 includes a nozzle mounting section 310 and a straight pipe section 320. The straight pipe section 320 is used to connect a water pipe, and the nozzle mounting section 310 is used to mount a nozzle 400. The nozzle mounting base 300 has a second through hole 330 penetrating both the nozzle mounting section 310 and the straight pipe section 320. A third through hole 111 is provided on the first fixing part 110, and the straight pipe section 320 passes through the third through hole 111. The second through hole 330 is used to mount the nozzle 400 and allow water flow. When installed in place, the second through hole 330 and the third through hole 111 are coaxial, allowing water to flow vertically and preventing the water flow direction from affecting the direction of water output from the nozzle 400, thereby improving the accuracy of the detection. The second through hole 330 may have an internal thread section for easy installation of the nozzle 400. The nozzle mounting section 310 may be machined with a nut structure to prevent rotation of the nozzle mounting section 310 when fixing it and connecting the water pipe. An external thread can be provided on the straight pipe section 320 so that it can be threadedly connected to the first fixing part 110.

[0056] In one exemplary embodiment, the minimum diameter of the nozzle mounting section 310 is greater than the diameter of the third through hole 111. The size of the nozzle mounting section 310 is greater than the size of the straight pipe section 320, which passes through the third through hole 111. Under the action of gravity, the lower surface of the nozzle mounting section 310 abuts against the first fixing part 110, which can improve the stability of the installation and ensure the verticality of the nozzle 400 when it is installed on the nozzle mounting section 310.

[0057] In one exemplary embodiment, the diameter of the nozzle mounting section 310 gradually decreases along the straight pipe section 320 toward the end of the nozzle mounting section 310. This can save machining material for the nozzle mounting section 310 and reduce machining costs.

[0058] In an exemplary embodiment, the nozzle mounting section 310 includes a fastener for adjusting the clamping force of the nozzle mounting section 310 on the nozzle 400.

[0059] In an exemplary embodiment, the length of the straight pipe section 320 is greater than the thickness of the first fixing portion 110. When the straight pipe section 320 passes through the third through hole 111, since its length is greater than the thickness of the first fixing portion 110, a part of the straight pipe section 320 will extend out of the third through hole 111, making it more convenient to connect structures such as water pipes or pipe connectors.

[0060] In an exemplary embodiment, the control unit includes a PLC controller electrically connected to the micro switch 230. Herein, the PLC (Programmable Logic Controller) controller refers to a programmable logic controller, including components such as a central processing unit, a memory, and input / output interfaces. When the perpendicularity of the nozzle 400 is qualified, the detection water column 500 will impact the moving part in an ideal state, causing the displacement generated by the moving part to exactly trigger the micro switch 230 or not trigger the micro switch 230. Whether the moving part triggers the micro switch 230 depends on the initial state and logical setting of the micro switch 230. It can be set that when the micro switch 230 is closed, the perpendicularity of the nozzle 400 is qualified, and when it is open, it is unqualified. The PLC can obtain the digital input signals when the micro switch 230 is closed and open, perform logical judgment according to the preset conditional judgment instructions, and output the result. The output result can be visually displayed through components such as an alarm or an indicator light connected to the PLC. By using the cooperation of the PLC and the micro switch 230, it is possible to accurately determine whether the perpendicularity of the nozzle 400 is qualified and achieve automated screening detection.

[0061] In an exemplary embodiment, the detection module further includes an alarm electrically connected to the PLC controller. Herein, the alarm can be used to prompt whether the perpendicularity of the nozzle 400 is qualified or unqualified. It can be of types such as a sound alarm, a light alarm, or an audible and visual alarm. After the PLC controller generates a judgment result, it can generate a control signal according to the judgment result to make the alarm give corresponding prompts so that the staff can handle it in a timely manner.

[0062] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0063] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A nozzle hole perpendicularity detecting device characterized by comprising: The device comprises: a base (100) comprising a first fixing part (110) and a second fixing part (120) arranged oppositely, the first fixing part (110) being used for fixing a nozzle (400) to be detected; a detection module comprising a detection piece and a control unit electrically connected with the detection piece, the detection piece being arranged on the second fixing part (120) and being used for detecting a water column (500) of a preset angle sprayed by the nozzle to be detected.

2. The orifice perpendicularity detecting apparatus according to claim 1, wherein A first through hole (121) is formed on the second fixing part (120) and faces the nozzle (400), the first through hole (121) being used for passing the water column (500) of the preset angle, the detection piece being located on a side of the second fixing part (120) away from the first fixing part (110) and facing the first through hole (121), wherein, during detection, the nozzle (400) to be detected sprays the water column (500) of the preset angle which can pass through the first through hole (121) and trigger the detection piece.

3. The orifice perpendicularity detection apparatus according to claim 2, wherein The detection piece comprises a detection plate (210) and a micro switch (230), a middle part of the detection plate (210) being rotationally connected with the second fixing part (120), a first end (212) of the detection plate (210) being coincident with the first through hole (121) in a vertical direction, and a second end (213) of the detection plate (210) being used for triggering the micro switch (230).

4. The orifice perpendicularity detecting apparatus according to claim 3, wherein A detection plate support (220) is arranged on the second fixing part (120), and the detection plate (210) is rotationally connected with the detection plate support (220).

5. The orifice perpendicularity detection apparatus according to claim 3, wherein A limiting part (211) is arranged on the detection plate (210); or, A limiting part (211) is arranged on the second fixing part (120), and a projection of the limiting part (211) in a vertical direction is at least partially coincident with the detection plate (210); wherein, the limiting part (211) is used for limiting a rotation angle of the detection plate (210).

6. The orifice perpendicularity detection apparatus according to claim 2, wherein The device further comprises a nozzle mounting base (300) facing the first through hole (121), the nozzle mounting base (300) comprising a nozzle mounting section (310) and a straight pipe section (320), the straight pipe section (320) being used for connecting a water pipe, the nozzle mounting section (310) being used for mounting the nozzle (400), the nozzle mounting base (300) having a second through hole (330) penetrating the nozzle mounting section (310) and the straight pipe section (320), and a third through hole (111) being arranged on the first fixing part (110), the straight pipe section (320) being arranged in the third through hole (111).

7. The orifice perpendicularity detection apparatus of claim 6, wherein A diameter of the nozzle mounting section (310) gradually decreases along the straight pipe section (320) to an end of the nozzle mounting section (310).

8. The orifice perpendicularity detection apparatus of claim 6, wherein The nozzle mounting section (310) is provided with a fastener, and the fastener is used for adjusting a force of the nozzle mounting section (310) clamping the nozzle.

9. The orifice perpendicularity detection apparatus of claim 3, wherein The control unit comprises a PLC controller, which is electrically connected with the microswitch (230).

10. The orifice perpendicularity detection apparatus of claim 9, wherein The detection module further comprises an alarm, which is electrically connected with the PLC controller.

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