Gas flameout detection probe protection installation assembly and kitchen range using gas flameout detection probe protection installation assembly

Abstract

The utility model discloses a gas flameout detection probe protection installation assembly and a stove using the same, the gas flameout detection probe protection installation assembly comprises a top cap and a metal outer sleeve, a detection probe is arranged in the metal outer sleeve, and the top end of the detection probe extends out of the metal outer sleeve; and the top cap is detachably arranged at the top of the detection probe so as to prevent the metal probe body from being polluted, and the inner wall of the top cap is in contact with the exposed section of the top of the metal probe body of the detection probe so as to sense the flame combustion condition. According to the technical scheme, the detection probe of the gas flameout protection device can be effectively protected, and replacement and maintenance are convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas stoves, and in particular relates to a gas flameout detection probe protection installation component and a stove thereof. Background Art

[0002] The gas flameout protection device is a safety protection device for the stove during use. When the gas flame is accidentally extinguished (blown out by wind, soup, or ignition failure), the gas flameout protection device can automatically cut off the gas to prevent gas leakage. Figure 1 The working principle of the gas flameout protection device is that a detection probe (31) is arranged near the flame outlet of the cooker, and the bottom end of the detection probe is connected to the gas flameout controller. When the flame burns normally, the surrounding air temperature rises and ionizes, and then the detection probe detects an electrical signal. When the flame is accidentally extinguished, the detection probe cannot sense the electrical signal. At this time, the gas flameout controller cannot receive the signal and automatically cuts off the maintenance current to the safety valve, so that the safety valve is closed, thereby cutting off the gas passage.

[0003] See attached Figure 2 , is a schematic diagram of the structure of an existing detection probe (31), which includes a metal probe body (32) and a ceramic sleeve (33) wrapped around the metal probe body (32), the top of the metal probe body (32) is exposed 2-4mm from the ceramic sleeve (33) for sensing combustion, and a connector (34) is provided at the bottom of the metal probe body (32) for connecting to a gas flameout controller. The above detection probe (31) has the following disadvantages:

[0004] (1) After the exposed portion of the top of the metal probe body (32) is poured with soup, a layer of oxidized oil film is easily formed, causing the top of the metal probe body to lose its conductive induction function, thereby causing the flameout protection to fail.

[0005] (2) When the stove is in use, the ceramic sleeve (33) of the detection probe is heated to a very high temperature. At this time, the spilled soup pours onto the top of the high-temperature ceramic sleeve and the soup contacts the outer wall of the ceramic sleeve along the installation gap between the ceramic sleeve and the stove, which can easily cause the ceramic sleeve (33) to crack, thereby causing the overall structure to fail.

[0006] Our company has developed a number of commercial gas energy-saving stoves and launched them on the market, such as the Chinese invention patent "Multi-purpose commercial gas energy-saving stove with constant pressure rotator" (patent number ZL2017103525058) and the Chinese utility model patent "Cyclone mixing combustion chamber and stove" (patent number ZL2019206192198). In actual use by customers, due to improper operation or negligence of restaurant chefs, soup may enter the stove, which will cause the above-mentioned detection probe problem. At the same time, our company's commercial energy-saving stoves are aimed at commercial customers such as restaurants and hotels. Usually, the fire control ring, insulation cotton and stove basin are used as the upper part of a stove, and the burner head containing components such as the combustion chamber, pressure cap, and air intake pipe is used as the lower part of a stove. During installation, the lower part is directly built into the stove in the back kitchen of the hotel, and the upper part is installed and matched with the lower part. At this time, the detection probe serving as a gas flameout protection device needs to be installed, fixed and connected during the installation process. Once the installation is completed, the position of the detection probe is fixed. Once damage occurs and it needs to be replaced urgently, the stove in the hotel kitchen needs to be disassembled (such as removing the furnace bricks) and re-installed after replacing the detection probe, which leads to a long maintenance and replacement time, which affects the efficiency of our company's later maintenance on the one hand, and seriously affects the customer's use on the other hand. Utility Model Content

[0007] The utility model mainly aims to overcome the deficiencies of the prior art and provides a gas flameout detection probe protection installation component and a stove thereof.

[0008] The utility model is realized by the following technical solutions:

[0009] A gas flameout detection probe protective installation assembly comprises a top cap and a metal jacket, wherein:

[0010] A detection probe is arranged in the metal jacket, and a top end thereof protrudes out of the metal jacket;

[0011] A top cap is detachably disposed on the top of the detection probe to prevent the metal probe body from being contaminated;

[0012] The inner wall of the top cap contacts the top exposed section of the metal probe body of the detection probe to sense the flame combustion condition.

[0013] In the above technical solution, a protrusion is provided on the outer wall of the top cap.

[0014] In the above technical solution, the top cap is in the shape of a cone, a polygonal pyramid, a cuboid, a cube or a cylinder.

[0015] In the above technical solution, the size of the top cap is larger than the size of the top exposed section of the metal probe body of the detection probe.

[0016] In the above technical solution, the bottom end diameter of the top cap is larger than the diameter of the expanded flange of the ceramic sleeve of the detection probe.

[0017] In the above technical solution, the metal jacket is cylindrical, and the diameter of the metal jacket is slightly larger than the diameter of the ceramic jacket of the detection probe.

[0018] In the above technical solution, the diameter of the metal jacket is slightly larger than the diameter of the ceramic jacket of the detection probe, and the diameter of the metal jacket is smaller than the diameter of the expanded diameter flange of the ceramic jacket of the detection probe, so that the top end of the metal jacket supports the expanded diameter flange of the ceramic jacket of the detection probe.

[0019] In the above technical solution, a flange is arranged on the outer wall of the metal jacket, and the flange is located below the top end of the metal jacket.

[0020] In the above technical solution, the flange is located 3-7 mm below the top end of the metal jacket.

[0021] In the above technical solution, the detection probe is arranged in the metal jacket, the top of the detection probe extends out of the metal jacket and is covered with a top cap, and the detection probe and the inner surface of the metal jacket are fixed.

[0022] In a stove using the above-mentioned gas flameout detection probe protection installation assembly, the metal jacket of the gas flameout detection probe protection installation assembly is set in the installation hole of the upper cylinder, the top of the metal jacket is higher than the bottom surface of the upper cylinder, the detection probe is set in the metal jacket, the top of the detection probe protrudes from the metal jacket, and a top cap is detachably set on the top of the detection probe.

[0023] Compared with the prior art, the utility model has the advantages and beneficial effects of being able to effectively protect the detection probe of the gas flameout protection device and being convenient for replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the installation and use structure of the detection probe in the prior art.

[0025] Figure 2 It is a schematic diagram of the structure of the detection probe in the prior art.

[0026] Figure 3 The utility model is a schematic structural diagram (1) of a gas flameout detection probe protection installation assembly.

[0027] Figure 4 It is a structural schematic diagram (2) of the gas flameout detection probe protection installation assembly of the utility model.

[0028] Figure 5 It is a structural schematic diagram (3) of the gas flameout detection probe protection installation assembly of the utility model.

[0029] Figure 6 This is a structural diagram of the commercial gas energy-saving stove developed by our company.

[0030] Figure 7 It is a structural schematic diagram (4) of the gas flameout detection probe protection installation assembly of the utility model.

[0031] For ordinary technicians in this field, other relevant drawings can be obtained based on the above drawings without any creative work. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.

[0033] Embodiment 1

[0034] A gas flameout detection probe protection installation assembly, see attached Figure 3 -Attached Figure 4 , including a top cap 2 and a metal jacket 3, and is described in conjunction with a detection probe 1 as follows:

[0035] The detection probe 1 comprises a metal probe body 1.1 and a ceramic sleeve 1.2 wrapped around the metal probe body 1.1. The top of the metal probe body 1.1 is exposed to a section of the ceramic sleeve 1.2. A circle of diameter expansion flange 1.3 is arranged on the upper part of the ceramic sleeve 1.2.

[0036] The top cap 2 is detachably covered on the top of the detection probe 1, and the top cap 2 can prevent the spilled soup from pouring on the top of the detection probe 1 and prevent the metal probe body 1.1 from being contaminated; the top cap 2 is made of metal, and the inner wall of the top cap 2 is in contact with the exposed section of the top of the metal probe body 1.1 of the detection probe 1, so that the top cap 2 can sense the flame combustion, and the size of the top cap 2 (from Figure 3 and 4 From the perspective of the top cap, the size of the top cap (including the axial and circumferential size of the top cap) is much larger than the size of the top exposed section of the metal probe body 1.1 (from Figure 3 and 4 From the perspective of the top exposed section of the metal probe body, the size includes its axial and circumferential size), which protects the metal probe body while expanding the sensing range, and can better sense the flame combustion; further, the top cap 2 is preferably conical, and can also be other forms such as polygonal pyramid, rectangular parallelepiped, cube or cylinder. Furthermore, the bottom diameter of the top cap 2 is larger than the diameter of the expanded flange 1.3 of the ceramic sleeve 1.2, which can effectively prevent the spilled soup from pouring on the ceramic sleeve 1.2.

[0037] The metal jacket 3 is cylindrical and is sleeved outside the detection probe 1. The diameter of the metal jacket 3 is slightly larger than the diameter of the ceramic jacket 1.2, and the diameter of the metal jacket 3 is smaller than the diameter of the expansion flange 1.3 of the ceramic jacket 1.2, so that the top of the metal jacket 3 supports the expansion flange 1.3 of the ceramic jacket 1.2; a circle of flange 3.1 is arranged on the outer wall of the metal jacket 3, and the flange 3.1 has a certain distance from the top of the metal jacket 3, preferably 3-7mm, so that when the metal jacket 3 is vertically installed in the installation hole on the cooker, the flange 3 .1 is limited at the top of the mounting hole, and because the flange 3.1 is at a certain distance from the top of the metal sleeve 3, the expanded diameter flange 1.3 of the ceramic sleeve 1.2 is lifted up to a certain height by the metal sleeve 3. Therefore, even if a certain amount of liquid is accumulated at the bottom of the cooker (as long as the liquid height is not higher than the expanded diameter flange 1.3), the liquid will not contact the expanded diameter flange 1.3 of the ceramic sleeve 1.2 and enter the gap between the expanded diameter flange 1.3 and the top of the metal sleeve 3 to contact the outer wall of the ceramic sleeve 1.2, thereby preventing the high-temperature ceramic sleeve 1.2 from contacting the liquid and breaking.

[0038] Embodiment 2

[0039] See attached Figure 5 The present embodiment introduces a stove using the above-mentioned gas flameout detection probe protection installation assembly, including a base cylinder 21, an upper cylinder 22, a gas pipe 23, a pressure cap 24 and the gas flameout detection probe protection installation assembly 25 described in the first embodiment. The upper cylinder 22 is installed on the base cylinder 21, and an air inlet cavity 26 is formed between the two. The top of the upper cylinder 22 is open, and a combustion chamber is formed therein; the gas pipe 23 vertically passes through the base cylinder 21 and the upper cylinder 22 to lead to the combustion chamber, and the pressure cap 24 covers the base cylinder 21 and the upper cylinder 22. A plurality of through holes are provided on the ignition cap 24 above the gas pipe 23, so that the gas in the gas pipe 23 can enter the combustion chamber through the through holes; an air inlet 211 is provided on the wall of the base cylinder 21, and a plurality of air outlets 221 are provided on the wall of the upper cylinder 22, and the air inlet 211 and the air outlet 221 are both connected to the air inlet cavity 26. When working, air is blown into the air inlet cavity 26 through the air inlet 211, and the air enters the combustion chamber from the air outlet 221, where the air and the gas are mixed for full combustion.

[0040] The gas flameout detection probe protective mounting assembly 25 is vertically mounted on the base cylinder 21 and the upper cylinder 22, wherein the flange 3.1 of the metal jacket 3 is limited on the upper surface of the mounting hole of the upper cylinder 22, and the expanded flange 1.3 of the ceramic sleeve 1.2 is held up to a certain height by the metal jacket 3. In this way, even if some soup falls, it can avoid affecting the high-temperature ceramic sleeve. The bottom end of the detection probe (including the metal probe body and the ceramic sleeve), especially the metal probe body, extends to the outside of the base cylinder as a connector to facilitate the connection of the gas flameout controller.

[0041] The commercial gas energy-saving stove developed by our company is easy to install and use. Figure 6 (The detection probe and air inlet are not marked in the figure). Figure 5 The upper part of the stove is further installed on the structure shown. Our company's commercial energy-saving stoves are generally aimed at commercial customers such as restaurants and hotels. In actual use by customers, due to improper operation or negligence of restaurant chefs, soup may enter the stove, thereby causing the above-mentioned detection probe problem. Figure 5 The structure shown is the "burner head" (also Figure 1 The structure shown in ) generally includes a combustion chamber, a flame cap, an air inlet cavity, an air inlet, a base cylinder, an upper cylinder, a gas pipe and other components. As the lower part of a stove, it is directly built into the stove in the restaurant's back kitchen. In actual use, as shown in the Chinese invention patent "Multi-purpose commercial gas energy-saving stove with constant pressure rotator" (patent number ZL2017103525058) and / or the Chinese utility model patent "Cyclone mixing combustion chamber and stove" (patent number ZL2019206192198), it is used with a fire control ring, thermal insulation cotton and a stove basin on the "burner head". Figure 6 As shown, a fire control ring 27 is arranged above the upper cylinder and the combustion chamber, and a heat-insulating cotton 28 is arranged on the inner surface of the stove basin 29 and is arranged as a whole above the "burner head" structure. The top of the fire control ring 27 extends into the heating area 30 composed of the heat-insulating cotton 28 on the inner surface of the stove basin 29 and the bottom of the pot actually used. In the subsequent maintenance and care, our company's staff will generally adjust the coordination of the fire control ring, the heat-insulating cotton and the stove basin according to the customer's usage, and try not to adjust and / or damage the "burner head" structure that has been installed. After adopting the detection probe protection structure of the utility model, although the installation is completed, the position of the detection probe is fixed and protected to ensure the use effect and avoid damage to the detection probe. It only needs to replace the top cap according to the situation. Once the detection probe is damaged, there is no need to disassemble the stove in the restaurant kitchen (such as dismantling the stove bricks), replace the detection probe and then re-install it; the connector and the gas flameout controller can be disconnected, and the top cap can be removed. Figure 5 and 6 In the vertical upward direction shown, the detection probe can be directly taken out for replacement. If any inconvenience occurs during this period, it is only necessary to adjust and / or remove the combination of the fire control ring, insulation cotton and furnace basin, which greatly saves the labor time for subsequent maintenance.

[0042] Embodiment 3

[0043] Different from the above-mentioned embodiment, Figure 2The entire detection probe shown is arranged in a metal jacket, and a top cap is arranged on the top of the detection probe 1 and can be detachably installed to prevent spilled soup from pouring on the top of the detection probe and to prevent the metal probe body from being contaminated; at the same time, it is convenient to replace.

[0044] For the entire stove, the metal jacket of the gas flameout detection probe protection installation assembly is set in the installation hole of the upper cylinder, the top of the metal jacket is higher than the bottom surface of the upper cylinder, and is fixed; the detection probe is set in the metal jacket, the top of the detection probe extends out of the metal jacket and is covered with a top cap, and the detection probe and the inner surface of the metal jacket are fixed. Once damaged and urgently need to be replaced, there is no need to disassemble the stove in the restaurant kitchen (such as dismantling the furnace bricks) and re-install it after replacing the detection probe; the method of the above embodiment is selected for replacement, or the damaged detection probe is directly taken out from under the "burner head" structure, and then replaced with a new detection probe and the top of the probe is covered with a top cap, which saves maintenance and replacement time.

[0045] Embodiment 4

[0046] Different from the above-mentioned embodiment, Figure 7 In the gas flameout detection probe protection installation assembly shown, a protrusion 2.1 is provided on the outer wall of the top cap 2, in order to further enhance the sensing effect of the top cap on the flame combustion condition.

[0047] It should be noted that the top cap and the metal jacket are both made of metal materials, which are selected according to the temperature of the stove, and generally high-temperature resistant materials are considered. When performing fixed connection, the connection glue that is selected is generally considered according to the temperature of the stove.

[0048] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship between an element or feature shown in the figure and another element or feature. It should be understood that, in addition to the orientation shown in the figure, spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "lower" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. Moreover, relational terms such as "first" and "second" are only used to distinguish one from another component with the same name, and do not necessarily require or imply that there is any such actual relationship or order between these components.

[0049] The above is an exemplary description of the present invention. It should be noted that, without departing from the core of the present invention, any simple deformation, modification or other equivalent replacement that can be done by other technical personnel in this field without expending creative labor falls within the protection scope of the present invention.

Claims

1. A gas flameout detection probe protection installation assembly, characterized in that: Consists of a top cap and a metal jacket, wherein: A detection probe is arranged in the metal jacket, and a top end thereof protrudes out of the metal jacket; A top cap is detachably disposed on the top of the detection probe to prevent the metal probe body from being contaminated; The inner wall of the top cap contacts the top exposed section of the metal probe body of the detection probe to sense the flame combustion condition.

2. A gas flameout detection probe protection installation assembly according to claim 1, characterized in that: A protrusion is provided on the outer wall of the top cap.

3. A gas flameout detection probe protection installation assembly according to claim 1 or 2, characterized in that: The top hat is in the shape of a cone, a polygonal pyramid, a rectangular parallelepiped, a cube or a cylinder.

4. A gas flameout detection probe protection installation assembly according to claim 1 or 2, characterized in that: The size of the top cap is larger than the size of the top exposed section of the metal probe body of the detection probe.

5. A gas flameout detection probe protection installation assembly according to claim 3, characterized in that: The size of the top cap is larger than the size of the top exposed section of the metal probe body of the detection probe.

6. A gas flameout detection probe protection installation assembly according to claim 1 or 2, characterized in that: The detection probe is arranged in the metal jacket, the top of the detection probe protrudes out of the metal jacket and is covered with a top cap, and the detection probe and the inner surface of the metal jacket are fixed.

7. A gas flameout detection probe protection installation assembly according to claim 3, characterized in that: The detection probe is arranged in the metal jacket, the top of the detection probe protrudes out of the metal jacket and is covered with a top cap, and the detection probe and the inner surface of the metal jacket are fixed.

8. A gas flameout detection probe protection installation assembly according to claim 4, characterized in that: The detection probe is arranged in the metal jacket, the top of the detection probe protrudes out of the metal jacket and is covered with a top cap, and the detection probe and the inner surface of the metal jacket are fixed.

9. A gas flameout detection probe protection installation assembly according to claim 5, characterized in that: The detection probe is arranged in the metal jacket, the top of the detection probe protrudes out of the metal jacket and is covered with a top cap, and the detection probe and the inner surface of the metal jacket are fixed.

10. A gas flameout detection probe protection installation assembly according to claim 1 or 2, characterized in that: An expansion flange is arranged on the ceramic sleeve of the detection probe, and the bottom diameter of the top cap is larger than the diameter of the expansion flange; the diameter of the metal jacket is slightly larger than the diameter of the ceramic sleeve of the detection probe and smaller than the diameter of the expansion flange.

11. A gas flameout detection probe protection installation assembly according to claim 3, characterized in that: An expansion flange is arranged on the ceramic sleeve of the detection probe, and the bottom diameter of the top cap is larger than the diameter of the expansion flange; the diameter of the metal jacket is slightly larger than the diameter of the ceramic sleeve of the detection probe and smaller than the diameter of the expansion flange.

12. A gas flameout detection probe protection installation assembly according to claim 4, characterized in that: An expansion flange is arranged on the ceramic sleeve of the detection probe, and the bottom diameter of the top cap is larger than the diameter of the expansion flange; the diameter of the metal jacket is slightly larger than the diameter of the ceramic sleeve of the detection probe and smaller than the diameter of the expansion flange.

13. A gas flameout detection probe protection installation assembly according to claim 5, characterized in that: An expansion flange is arranged on the ceramic sleeve of the detection probe, and the bottom diameter of the top cap is larger than the diameter of the expansion flange; the diameter of the metal jacket is slightly larger than the diameter of the ceramic sleeve of the detection probe and smaller than the diameter of the expansion flange.

14. A gas flameout detection probe protection installation assembly according to claim 10, characterized in that: A flange is arranged on the outer wall of the metal jacket and is located below the top end of the metal jacket.

15. A gas flameout detection probe protection installation assembly according to any one of claims 11 to 13, characterized in that: A flange is arranged on the outer wall of the metal jacket and is located below the top end of the metal jacket.

16. A gas flameout detection probe protection installation assembly according to claim 14, characterized in that: The flange is located 3-7 mm below the top of the metal jacket.

17. A gas flameout detection probe protection installation assembly according to claim 15, characterized in that: The flange is located 3-7 mm below the top of the metal jacket.

18. A cooking appliance using a gas flameout detection probe protection installation assembly as claimed in any one of claims 1 to 17, characterized in that: The metal jacket of the gas flameout detection probe protection mounting assembly is set in the mounting hole of the upper cylinder, the top of the metal jacket is higher than the bottom surface of the upper cylinder, the detection probe is set in the metal jacket, the top of the detection probe extends out of the metal jacket, and a top cap is detachably set on the top of the detection probe.

19. The cooker according to claim 18, characterized in that: The flange on the outer wall of the metal jacket is limited at the top of the mounting hole, so that the expanded diameter flange of the ceramic sleeve of the detection probe is held up by the metal jacket.

20. The cooker according to claim 18 or 19, characterized in that: The top cap and the metal jacket are both made of metal material; high temperature resistant connecting glue is selected for the fixed connection.

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