Ignition feedback needle fixing device and gas water heater

Abstract

The utility model relates to an ignition feedback needle fixing device and a gas water heater, the ignition feedback needle fixing device is used for fixing an ignition needle and a feedback needle, the ignition feedback needle fixing device comprises a fixing support and a pressing plate assembly, and the fixing support comprises a hinged end and a clamping end which are oppositely arranged; two first grooves which are spaced from each other are formed in the fixed bracket; one end of the pressing plate assembly is hinged to the hinged end, the other end of the pressing plate assembly is buckled with the clamping end, and the pressing plate assembly is provided with two second grooves corresponding to the first grooves; after the pressing plate assembly and the fixing support are buckled, the first groove and the second groove jointly define containing spaces, the ignition needle and the feedback needle are arranged in the two containing spaces in a pressed mode respectively, and the two ends of the ignition needle and the two ends of the feedback needle are exposed out of the fixing support respectively. By means of the arrangement, when the ignition needle and the feedback needle are installed on the fixing device, operation can be conducted with only one hand, and therefore the ignition needle and the feedback needle can be disassembled and assembled conveniently, and the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heaters, in particular to an ignition feedback needle fixing device and a gas water heater. Background Art

[0002] The ignition pin and feedback pin play a key role in the water heater. At present, the ignition pin and feedback pin design of most flue water heaters overseas are split, and the ceramic body part is an overall stretched shape. When in use, it is placed in the slot of the fixing plate, and then the two are pressed down with a pressure plate, and then screwed in. Driven by the water flow signal, the water heater allows the pulse controller to release the ignition signal, and the ignition pin is used to electrically ignite the burner, so that the water heater starts to burn, and then the flame is sensed through the feedback pin, and the ion feedback signal is transmitted back to the pulse controller, so that the water heater can maintain normal working state.

[0003] At present, the overall structure of flue-type water heaters is relatively simple, and the burner assembly generally does not have a combustion chamber, so the ignition needle and feedback needle can only be fixed on the burner monolithic chip through a fixed bracket to play the role of ignition and feedback. Specifically, the ignition needle and feedback needle are placed on the fixed bracket, then fixed by a fixed pressure plate, and then locked with screws. When one person operates this installation method, one hand needs to hold a screwdriver, and the other hand needs to hold the fixed pressure plate and the ignition needle and feedback needle at the same time, and the height of the needle needs to be adjusted. The whole process is cumbersome and inconvenient to operate. Utility Model Content

[0004] The technical problem solved by the utility model is to provide an ignition feedback needle fixing device, which facilitates the installation of the ignition needle and the feedback needle by arranging the pressure plate assembly and the fixing bracket to be hinged at one end and buckled at the other end, thereby improving the installation efficiency of the ignition needle and the feedback needle.

[0005] An ignition feedback needle fixing device is used to fix an ignition needle and a feedback needle, and the ignition feedback needle fixing device comprises:

[0006] A fixed bracket, comprising a hinged end and a clamping end arranged opposite to each other, and two first grooves spaced apart from each other are configured on the fixed bracket;

[0007] A pressing plate assembly, one end of which is hinged to the hinged end and the other end of which is buckled to the clamping end, and the pressing plate assembly is provided with two second grooves corresponding to the first grooves;

[0008] Among them, after the pressure plate assembly and the fixed bracket are buckled together, the first groove and the second groove jointly define a accommodating space, the ignition needle and the feedback needle are respectively pressed into the two accommodating spaces, and the two ends of the ignition needle and the feedback needle are respectively exposed outside the fixed bracket.

[0009] The ignition feedback needle fixing device provided by the utility model and the beneficial effects produced by the background technology are as follows:

[0010] The above-mentioned ignition feedback needle fixing device is provided with a first groove on the fixing bracket and a second groove on the pressure plate assembly. The first groove and the second groove enclose and define a storage space to provide a storage space for the ignition needle and the feedback needle. One end of the pressure plate assembly is hinged to the fixing bracket, and the other end is buckled to the fixing bracket, so that when the ignition needle and the feedback needle are installed on the fixing device, only one hand is needed to operate, which is conducive to the disassembly and assembly of the ignition needle and the feedback needle and improves the installation efficiency. The two ends of the ignition needle and the feedback needle are exposed to the outside of the fixing bracket to realize the electrical connection and signal transmission between the ignition needle and the feedback needle and other components, thereby realizing the ignition function.

[0011] In one embodiment, the pressure plate assembly includes:

[0012] A fixed pressure plate, comprising a first end and a second end arranged opposite to each other, wherein the first end is hinged to the hinged end of the fixed bracket;

[0013] A buckle plate has one end hinged to the second end of the fixed pressure plate, and the other end of the buckle plate is buckled to the clamping end of the fixed bracket.

[0014] By arranging the pressure plate in a form where the fixed pressure plate and the buckle plate are hinged, a degree of freedom of rotation is provided between the fixed pressure plate and the buckle plate, so that when the fixed assembly and the fixed bracket are buckled together, the size requirements are relatively loose, thereby making the installation of the ignition needle and the feedback needle more convenient.

[0015] In one of the embodiments, one of the clamping end of the fixed bracket and the end of the buckle plate away from the fixed pressure plate is provided with a clamping groove, and the other is provided with a clamping protrusion, and the clamping protrusion can be clamped in the clamping groove.

[0016] By providing snap-in grooves and snap-in protrusions on the fixed bracket and the buckle plate, on the one hand, the structure of the mutual snap-in connection between the two is made simpler, and on the other hand, such a setting is also conducive to making the snap-in connection between the buckle plate and the fixed bracket more convenient, thereby making the installation operation of the ignition needle and the feedback needle simpler and more convenient.

[0017] In one of the embodiments, a clamping notch is provided on the groove wall of the clamping groove, and the clamping protrusion is clamped in the clamping notch.

[0018] By setting a snap notch on the groove wall of the snap groove and snapping the snap protrusion into the snap notch, the snap protrusion is stopped by the side wall of the snap notch, thereby improving the reliability and stability of the snap connection between the buckle plate and the fixed bracket, thereby improving the stability of the ignition needle and the feedback needle after installation.

[0019] In one embodiment, the ignition feedback needle fixing device further comprises:

[0020] An elastic member, disposed between the fixed pressure plate and the fixed bracket, with two ends of the elastic member respectively abutting against the fixed pressure plate and the fixed bracket;

[0021] Wherein, after the fixed pressing plate and the fixed bracket are covered, the elastic force of the elastic member makes the fixed pressing plate have a tendency to move away from the fixed bracket.

[0022] By arranging an elastic member between the fixed pressure plate and the fixed bracket, the elastic member always applies an elastic force to the fixed pressure plate to move away from the fixed bracket. When the snap-in protrusion is inserted into the snap-in groove, the driving force of the fixed pressure plate to move away from the fixed bracket can increase the interaction between the groove wall of the snap-in groove and the snap-in protrusion, thereby improving the reliability of the card interface between the two.

[0023] In one embodiment, the ignition feedback needle fixing device further comprises:

[0024] A hinge shaft, through which the first end of the fixed pressing plate and the hinge end of the fixed bracket are hinged;

[0025] The elastic member is a torsion spring, which is sleeved on the hinge shaft, and two torsion arms of the torsion spring are respectively against the fixed pressure plate and the fixed bracket.

[0026] The elastic member is arranged as a torsion spring, and the torsion spring is sleeved on the hinge shaft. On the one hand, the reliability of the torsion spring connection can be improved. On the other hand, arranging the torsion spring at the hinge end can save space.

[0027] In one embodiment, the ignition needle and the feedback needle are both provided with a limiting groove, a part of the fixing bracket is clamped in the limiting groove, and the two opposite outer side walls of the fixing bracket are respectively against the groove wall of the limiting groove. In this way, the ignition needle and the feedback needle are limited by the mutual resistance between the limiting grooves on the ignition needle and the feedback needle and the side wall of the fixing bracket, so that the ignition needle and the feedback needle are prevented from moving along their own extension direction.

[0028] In one embodiment, the shapes of the parts where the ignition needle and the feedback needle are engaged with the first groove and the second groove are adapted to the shapes of the first groove and the second groove. Such a configuration is conducive to increasing the limiting force of the first groove and the second groove on the ignition needle and the feedback needle, thereby improving the reliability of the ignition feedback needle fixing device.

[0029] In one embodiment, the fixing bracket is configured as a plate-like structure, and two opposite sides of the plate-like structure are folded away from the plate body to form side flanges, and the first groove is arranged on the side flanges. Such an arrangement can reduce the weight of the fixing bracket while also improving the strength of the fixing bracket.

[0030] The utility model also provides a gas water heater, which can solve at least one of the above technical problems.

[0031] A gas water heater comprises the ignition feedback needle fixing device as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic structural diagram of an ignition feedback fixing device provided by an embodiment of the utility model in a state where a fixing assembly and a fixing bracket are covered;

[0033] FIG2 is a schematic structural diagram of an ignition feedback fixing device provided by an embodiment of the present utility model in a state where the fixing assembly and the fixing bracket are opened;

[0034] FIG3 is an exploded view of an ignition feedback fixing device provided in one embodiment of the utility model;

[0035] FIG. 4 is an enlarged schematic diagram of A in FIG. 1 .

[0036] Reference numerals:

[0037] Fixed bracket 100; hinged end 110; snap-on end 120; snap-on groove 121; snap-on notch 1211; side flange 130; first groove 131; connecting ear plate 140; pressure plate assembly 200; fixed pressure plate 210; first end 211; second end 212; second groove 213; buckle plate 220; snap-on protrusion 221; accommodating notch 222; elastic member 300; hinge shaft 400; ignition needle 500; limiting groove 510; feedback needle 600. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying 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 the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0044] 1 to 3 , an embodiment of the utility model provides an ignition feedback needle fixing device for fixing an ignition needle 500 and a feedback needle 600. The ignition feedback needle fixing device includes a fixing bracket 100 and a pressure plate assembly 200. The fixing bracket 100 includes a hinged end 110 and a clamping end 120 arranged opposite to each other. Two first grooves 131 spaced apart from each other are constructed on the fixing bracket 100. One end of the pressure plate assembly 200 is hinged to the hinged end 110, and the other end of the pressure plate assembly 200 is buckled with the clamping end 120. The pressure plate assembly 200 is provided with two second grooves 213 corresponding to the first grooves 131. After the pressure plate assembly 200 and the fixing bracket 100 are buckled together, the first groove 131 and the second groove 213 jointly define a accommodating space. The ignition needle 500 and the feedback needle 600 are respectively pressed into the two accommodating spaces, and the two ends of the ignition needle 500 and the feedback needle 600 are respectively exposed outside the fixing bracket 100.

[0045] The above-mentioned ignition feedback needle fixing device is provided with a first groove 131 on the fixing bracket 100 and a second groove 213 on the pressure plate assembly 200. The first groove 131 and the second groove 213 enclose and define a storage space to provide a storage space for the ignition needle 500 and the feedback needle 600. One end of the pressure plate assembly 200 is hinged to the fixing bracket 100, and the other end is buckled to the fixing bracket 100, so that when the ignition needle 500 and the feedback needle 600 are installed on the fixing device, only one hand is needed to operate, which is conducive to the disassembly and assembly of the ignition needle 500 and the feedback needle 600, and improves the installation efficiency. The two ends of the ignition needle 500 and the feedback needle 600 are exposed to the outside of the fixing bracket 100 to realize the electrical connection and signal transmission between the ignition needle 500 and the feedback needle 600 and other components, thereby realizing the ignition function.

[0046] It is understandable that there is no limitation on the specific shapes of the first groove 131 and the second groove 213, as long as the fixing bracket 100 is engaged with the pressure plate assembly 200, the space formed between the first groove 131 and the second groove 213 can accommodate the ignition needle 500 or the feedback needle 600, and can fix the ignition needle 500 or the feedback needle 600.

[0047] Of course, the shapes of the first groove 131 and the second groove 213 are also related to the outer contours of the ignition needle 500 and the feedback needle 600. For example, when the outer contours of the ignition needle 500 and the feedback needle 600 are circular, the first groove 131 and the second groove 213 can be circular or V-shaped, etc.; when the outer contours of the ignition needle 500 and the feedback needle 600 are square, the first groove 131 and the second groove 213 can be square or V-shaped. In addition, after the pressure plate assembly 200 and the fixing bracket 100 are buckled together, the pressure plate assembly 200 and the fixing bracket 100 can apply a pre-tightening force to the ignition needle 500 and the feedback needle 600 to fix the ignition needle 500 and the feedback needle 600.

[0048] 1 to 3, specifically, the fixing bracket 100 is configured as a plate-like structure, and two opposite sides of the plate-like structure are folded away from the plate body to form side flanges 130, and the first groove 131 is provided on the side flanges 130. Such a configuration can reduce the weight of the fixing bracket 100 while also improving the strength of the fixing bracket 100.

[0049] It can be understood that the fixing bracket 100 is a U-shaped plate structure as a whole, and the side flange 130 can improve the strength of the fixing bracket 100 on the one hand, and on the other hand, the U-shaped groove defined between the side flange 130 and the plate body can accommodate the ignition needle 500 and the feedback needle 600. The first grooves 131 on the two side flanges 130 correspond to each other, so that both ends of the ignition needle 500 or the feedback needle 600 can be stuck in the first grooves 131.

[0050] 1 to 3, further, after the two ends of the fixing bracket 100 extend away from the pressing plate assembly 200 by a preset distance, they are bent away from the first groove 131 to form a connecting ear plate 140. This arrangement facilitates the connection between the fixing device and the related components in the gas water heater.

[0051] Specifically, the two ends of the plate body of the plate-like structured fixing bracket 100 are bent twice to form the connecting ear plate 140 mentioned above, and the connecting ear plate 140 is provided with at least two spaced through holes for bolts to pass through, so that the fixing bracket 100 is connected to the burner monolith in the gas water heater by bolts.

[0052] Referring to FIGS. 1 to 3 , in one embodiment, the pressure plate assembly 200 includes a fixed pressure plate 210 and a buckle plate 220. The fixed pressure plate 210 includes a first end 211 and a second end 212 that are arranged opposite to each other. The first end 211 is hinged to the hinge end 110 of the fixed bracket 100. One end of the buckle plate 220 is hinged to the second end 212 of the fixed pressure plate 210, and the other end of the buckle plate 220 is buckled to the clamping end 120 of the fixed bracket 100. By arranging the pressure plate in a hinged form between the fixed pressure plate 210 and the buckle plate 220, a rotational freedom is provided between the fixed pressure plate 210 and the buckle plate 220, so that when the fixed assembly and the fixed bracket 100 are buckled with each other, the size requirement is relatively loose, so that the installation of the ignition needle 500 and the feedback needle 600 is more convenient.

[0053] Specifically, the fixed plate 210 is also a U-shaped plate structure, the fixed plate 210 and the U-shaped groove of the fixed bracket 100 are arranged opposite to each other, and the second groove 213 is arranged on the side wall of the fixed plate 210. Such an arrangement can provide a space for the ignition needle 500 or the feedback needle 600 while enhancing the overall strength of the fixed plate 210; in addition, such an arrangement can also reduce the weight of the fixed plate 210, thereby making the entire ignition feedback needle fixing device lighter.

[0054] The buckle plate 220 is also a plate-like structure. Lugs perpendicular to the plate body of the buckle plate 220 are arranged on both sides of one end of the buckle plate 220 hinged to the second end 212 of the fixed pressure plate 210. The lugs are used to be hinged to the side wall of the fixed pressure plate 210.

[0055] Referring to FIGS. 1 to 3 , in one embodiment, one of the clamping end 120 of the fixed bracket 100 and the end of the pinch plate 220 away from the fixed pressure plate 210 is provided with a clamping groove 121, and the other is provided with a clamping protrusion 221, and the clamping protrusion 221 can be clamped in the clamping groove 121. By providing the clamping groove 121 and the clamping protrusion 221 on the fixed bracket 100 and the pinch plate 220, on the one hand, the structure of the clamping connection between the two is made simpler, and on the other hand, such a setting is also conducive to making the clamping connection between the pinch plate 220 and the fixed bracket 100 more convenient, thereby making the installation operation of the ignition needle 500 and the feedback needle 600 simpler and more convenient.

[0056] In this embodiment, the end of the clamping end 120 of the side flange 130 of the fixed bracket 100 is provided with the above-mentioned clamping groove 121, and the notch of the clamping groove 121 faces the direction away from the hinge end 110. The two sides of the end of the buckle plate 220 away from the fixed pressure plate 210 are provided with clamping protrusions 221, and when the buckle plate 220 is turned over to fit with the second end 212 of the fixed pressure plate 210 and the clamping end 120 of the fixed bracket 100, the clamping protrusions 221 can just be buckled into the clamping groove 121.

[0057] As shown in Fig. 4, further, a clamping notch 1211 is provided on the groove wall of the clamping groove 121, and the clamping protrusion 221 is clamped in the clamping notch 1211. By providing the clamping notch 1211 on the groove wall of the clamping groove 121, and clamping the clamping protrusion 221 in the clamping notch 1211, the clamping protrusion 221 is stopped by the side wall of the clamping notch 1211, thereby improving the reliability and stability of the buckle plate 220 and the fixing bracket 100, thereby improving the stability of the ignition needle 500 and the feedback needle 600 after installation.

[0058] As shown in Figure 4, specifically, an accommodating notch 222 is provided on the buckle plate 220 at a position adjacent to the snap-fitting protrusion 221. When the buckle plate 220 is flipped over to snap into engagement with the fixing bracket 100, the snap-fitting protrusion 221 enters the snap-fitting groove 121 from the notch of the snap-fitting groove 121 and snaps into the snap-fitting notch 1211. The upper side wall of the snap-fitting groove 121 can be snapped into the accommodating notch 222, so that the top of the side flange 130 and the side wall of the groove on the buckle plate 220 resist each other, thereby achieving mutual limitation, so as to further improve the reliability of the buckle plate 220 and the fixing bracket 100 after being snapped into engagement. Referring to FIGS. 1 to 3 , in one embodiment, the ignition feedback needle fixing device further includes an elastic member 300, which is disposed between the fixed pressing plate 210 and the fixed bracket 100, and the two ends of the elastic member 300 are respectively against the fixed pressing plate 210 and the fixed bracket 100; wherein, after the fixed pressing plate 210 and the fixed bracket 100 are covered, the elastic force of the elastic member 300 makes the fixed pressing plate 210 have a tendency to move away from the fixed bracket 100. By arranging the elastic member 300 between the fixed pressing plate 210 and the fixed bracket 100, the elastic member 300 always applies an elastic force to the fixed pressing plate 210 to move away from the fixed bracket 100, so that after the clamping protrusion 221 is clamped into the clamping groove 121, under the driving force of the fixed pressing plate 210 moving away from the fixed bracket 100, the interaction between the groove wall of the clamping groove 121 and the clamping protrusion 221 can be increased, thereby improving the reliability of the clamping interface between the two.

[0059] In this embodiment, the elastic member 300 can be a spring, and the specific position of the elastic member 300 on the fixed bracket 100 is not limited. For example, the elastic member 300 can be connected to the hinge end 110 of the fixed bracket 100, or it can be connected to the clamping end 120 of the fixed bracket 100, as long as the elastic force of the spring can apply a thrust to the fixed pressure plate 210 in a direction away from the fixed bracket 100.

[0060] Furthermore, the ignition feedback needle fixing device also includes a hinge shaft 400, through which the first end 211 of the fixed pressure plate 210 and the hinge end 110 of the fixed bracket 100 are hinged; the elastic member 300 is a torsion spring, which is sleeved on the hinge shaft 400, and the two torsion arms of the torsion spring are respectively against the fixed pressure plate 210 and the fixed bracket 100. The elastic member 300 is set as a torsion spring, and the torsion spring is sleeved on the hinge shaft 400, which can improve the reliability of the torsion spring connection on the one hand, and on the other hand, the torsion spring is set at the hinge end 110, which can save space.

[0061] Specifically, the hinge shaft 400 is a rivet, and after one end of the rivet of the rivet passes through the through holes on one side of the fixed plate 210 and the fixed bracket 100 in sequence, the torsion spring is sleeved on the rivet, and then after the rivet passes through the through holes on the other side of the fixed plate 210 and the fixed bracket 100, the rivet is matched with the rivet. In this way, the hinge of the fixed plate 210 and the fixed bracket 100 is realized, and the installation of the torsion spring can be realized.

[0062] In this embodiment, the torsion spring is a U-shaped double torsion spring. The use of the double torsion spring can increase the elastic force of the torsion arm of the torsion spring on the fixed bracket 100 and the fixed pressure plate 210, thereby making the clamping of the gusset plate 220 and the fixed bracket 100 more reliable. The hinge between the gusset plate 220 and the fixed pressure plate 210 is also achieved by a rivet. The specific installation form is similar to the hinge between the fixed pressure plate 210 and the fixed bracket 100, and will not be repeated here.

[0063] Referring to Figures 1 to 3, in one embodiment, a limiting groove 510 is provided on the ignition needle 500 and the feedback needle 600, a part of the fixed bracket 100 is stuck in the limiting groove 510, and the two opposite outer side walls of the fixed bracket 100 are respectively against the groove wall of the limiting groove 510. In this way, the ignition needle 500 and the feedback needle 600 are limited by the mutual resistance between the limiting groove 510 on the ignition needle 500 and the feedback needle 600 and the side wall of the fixed bracket 100, so that the ignition needle 500 and the feedback needle 600 can move along their own extension direction. Specifically, the ignition needle 500 and the feedback needle 600 are arranged in a form of large ends and small middle, so as to form a limiting groove 510 in the middle. The ignition needle 500 and the feedback needle 600 are constructed as a square structure.

[0064] Specifically, the shapes of the parts where the ignition needle 500 and the feedback needle 600 are engaged with the first groove 131 and the second groove 213 are adapted to the shapes of the first groove 131 and the second groove 213. Such a configuration is conducive to increasing the limiting force of the first groove 131 and the second groove 213 on the ignition needle 500 and the feedback needle 600, thereby improving the reliability of the ignition feedback needle fixing device.

[0065] In this embodiment, the ignition needle 500 and the feedback needle 600 are of a square structure, and the first groove 131 and the second groove 213 are set as V-shaped grooves. When installed, the two adjacent side walls of the ignition needle 500 or the feedback needle 600 are clamped in the first groove 131, and the other two side walls are clamped in the second groove 213. The side walls at both ends of the ignition needle 500 and the feedback needle 600 are respectively against the outer side wall of the fixed pressure plate 210 and the outer side of the side flange 130 of the fixed bracket 100. In this way, the ignition needle 500 and the feedback needle 600 can be limited by the side wall of the fixed pressure plate 210 and the flange of the fixed bracket 100, thereby preventing the ignition needle 500 and the feedback needle 600 from moving along their own extension direction. In this way, during the installation or use process, the ignition needle 500 and the feedback needle 600 will not easily shift up and down, thereby avoiding problems such as poor ignition and deflagration caused by the ignition needle 500 deviating from the design value; it can also avoid problems such as the inability to sense the flame signal and the inability to feedback the combustion conditions caused by the feedback needle 600 deviating from the design value.

[0066] The utility model also provides a gas water heater, which can solve at least one of the above technical problems.

[0067] A gas water heater comprises the above ignition feedback needle fixing device.

[0068] 1 to 3 , the installation process of the ignition feedback needle fixing device provided in this embodiment, and the installation process of the ignition needle 500 and the feedback needle 600 are as follows:

[0069] After one end of the mother nail of the mother-and-child rivet passes through the through holes on one side of the fixed pressure plate 210 and the fixed bracket 100 in turn, the torsion spring is put on the mother nail, and then after the mother nail passes through the through holes on the other side of the fixed pressure plate 210 and the fixed bracket 100, the son nail is locked with the mother nail. This forms an elastic rotating assembly between the fixed bracket 100 and the fixed pressure plate 210. The buckle plate 220 is hinged to the second end 212 of the fixed pressure plate 210 through the mother-and-child rivet; this obtains a two-axis rotating assembly. The entire fixing device is connected and formed in the above manner. When installing the ignition needle 500 and the feedback needle 600, it is only necessary to place the ignition needle 500 and the feedback needle 600 in the first groove 131 of the fixed bracket 100, and then press down the fixed pressure plate 210 until the buckle plate 220 is tightly buckled on the fixed bracket 100, and the installation of the ignition needle 500 and the feedback needle 600 is completed.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0071] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An ignition feedback needle fixing device, used for fixing an ignition needle (500) and a feedback needle (600), characterized in that: The ignition feedback needle fixing device comprises: A fixed bracket (100) comprises a hinged end (110) and a clamping end (120) arranged opposite to each other, and the fixed bracket (100) is configured with two first grooves (131) spaced apart from each other; A pressure plate assembly (200), one end of which is hinged to the hinged end (110), and the other end of which is buckled to the clamping end (120), and the pressure plate assembly (200) is provided with two second grooves (213) corresponding to the first grooves (131); Among them, after the pressure plate assembly (200) and the fixed bracket (100) are buckled together, the first groove (131) and the second groove (213) jointly define a accommodating space, and the ignition needle (500) and the feedback needle (600) are respectively pressed into the two accommodating spaces, and the two ends of the ignition needle (500) and the feedback needle (600) are respectively exposed outside the fixed bracket (100).

2. The ignition feedback needle fixing device according to claim 1, characterized in that: The pressing plate assembly (200) comprises: A fixed pressing plate (210) comprising a first end (211) and a second end (212) arranged opposite to each other, wherein the first end (211) is hinged to the hinge end (110) of the fixed bracket (100); The buckle plate (220) has one end hinged to the second end (212) of the fixed pressure plate (210), and the other end of the buckle plate (220) is buckled to the clamping end (120) of the fixed bracket (100).

3. The ignition feedback needle fixing device according to claim 2, characterized in that: One of the clamping end (120) of the fixed bracket (100) and the end of the buckle plate (220) facing away from the fixed pressure plate (210) is provided with a clamping groove (121), and the other is provided with a clamping protrusion (221), and the clamping protrusion (221) can be clamped in the clamping groove (121).

4. The ignition feedback needle fixing device according to claim 3, characterized in that: A clamping notch (1211) is provided on the groove wall of the clamping groove (121), and the clamping protrusion (221) is clamped in the clamping notch (1211).

5. The ignition feedback needle fixing device according to claim 2, characterized in that: The ignition feedback needle fixing device also includes: An elastic member (300) is disposed between the fixed pressure plate (210) and the fixed bracket (100), and two ends of the elastic member (300) are respectively against the fixed pressure plate (210) and the fixed bracket (100); After the fixed pressure plate (210) and the fixed bracket (100) are covered, the elastic force of the elastic member (300) causes the fixed pressure plate (210) to have a tendency to move away from the fixed bracket (100).

6. The ignition feedback needle fixing device according to claim 5, characterized in that: The ignition feedback needle fixing device also includes: A hinge shaft (400), through which the first end (211) of the fixed pressure plate (210) and the hinge end (110) of the fixed bracket (100) are hinged; The elastic member (300) is a torsion spring, which is sleeved on the hinge shaft (400), and the two torsion arms of the torsion spring respectively abut against the fixed pressure plate (210) and the fixed bracket (100).

7. The ignition feedback needle fixing device according to any one of claims 1 to 6, characterized in that: The ignition needle (500) and the feedback needle (600) are both provided with a limiting groove (510), a portion of the fixing bracket (100) is clamped in the limiting groove (510), and two opposite outer side walls of the fixing bracket (100) respectively abut against the groove walls of the limiting groove (510).

8. The ignition feedback needle fixing device according to claim 7, characterized in that: The shapes of the parts where the ignition needle (500) and the feedback needle (600) are engaged with the first groove (131) and the second groove (213) are adapted to the shapes of the first groove (131) and the second groove (213).

9. The ignition feedback needle fixing device according to any one of claims 1 to 6, characterized in that: The fixing bracket (100) is configured as a plate-like structure, and two opposite sides of the plate-like structure are folded in a direction away from the plate body to form side flanges (130), and the first groove (131) is provided on the side flanges (130).

10. A gas water heater, characterized in that: The gas water heater comprises an ignition feedback needle fixing device as described in any one of claims 1-9.

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