Temperature sensing probe and combustion assembly

Abstract

The utility model discloses a temperature sensing probe and a combustion assembly. The temperature sensing probe comprises a temperature sensing element; a first channel extending upwards is formed in the rod body, an upper end opening of the first channel is open, the rod body is further provided with a ring wall extending outwards from the periphery of the upper end opening of the first channel and an annular side wall extending upwards from the periphery of the outer side of the ring wall, and a cavity with an upward opening is defined by the annular side wall and the ring wall; the heat collecting cover is provided with a top wall and a first ring wall extending downwards from the top wall, a space with a downward opening is defined by the first ring wall and the top wall so that the temperature sensing element can be arranged in the space, and the heat collecting cover is arranged in the concave cavity in a manner of moving up and down and has the following two states: an exposed state in which the top wall of the heat collecting cover is exposed out of the concave cavity through the opening; in the folding state, the top wall of the heat collecting cover is located in the concave cavity; the temperature sensing probe further comprises a first elastic piece which acts on the heat collecting cover so that the heat collecting cover and the temperature sensing element can always have the trend of moving upwards to be exposed. According to the utility model, the temperature measurement accuracy can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of household stoves, and in particular relates to a temperature sensing probe and a combustion component. Background Art

[0002] At present, in order to prevent dry burning, gas stoves on the market are generally equipped with temperature sensing probes so that the probe contacts the bottom of the pot for temperature measurement, so as to prevent dry burning and reduce safety hazards. For example, the utility model patent "Anti-dry burning temperature sensing probe and gas stove burner with the temperature sensing probe" (authorization announcement number CN217006142U) with patent number 202123126310.2 includes a shell, a temperature sensing cap, a connecting sleeve, a thermistor or a thermocouple, a first spring and a second spring. The first spring is arranged in the inner cavity of the shell and the bottom end is opposite to the baffle, and the top end is against the temperature sensing cap; the second spring is arranged in the inner cavity of the shell and the bottom end is against the upper end of the connecting sleeve, and the top end is located below the baffle. In this way, the two-stage spring design can make the temperature sensing probe match pots of various specifications.

[0003] Another example is the utility model patent "Probe Assembly and Burner" (authorization announcement number CN219083182U) with patent number 202320220670.9, which includes: a probe, along its height direction, a detection section is provided at one end of the probe, and a reference section is provided at the other end; a first shell, at least partially surrounding the detection section and the reference section, and the first shell can be switched between a first position and a second position along the height direction; wherein, when the first shell is located at the first position and the second position, the top of the first shell along the height direction is located within the extension range of the detection section, and along the height direction, the second position is located below the first position.

[0004] Under the premise of ensuring normal use, the accuracy of temperature measurement by existing temperature sensing probes needs to be further improved. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a temperature sensing probe in view of the current status of the prior art to improve the temperature measurement accuracy.

[0006] The second technical problem to be solved by the utility model is to provide a combustion component with the above-mentioned temperature sensing probe.

[0007] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a temperature sensing probe, including:

[0008] The rod body has a first channel extending upward therein, and the upper end of the first channel is open;

[0009] Temperature sensing element;

[0010] Features:

[0011] The rod body also has a ring wall extending outward from the periphery of the upper end of the first channel, and a ring side wall extending upward from the outer periphery of the ring wall, and the ring side wall and the ring wall together define a concave cavity with an opening facing upward;

[0012] The temperature sensing probe also includes:

[0013] The heat-conducting heat collecting cover comprises a top wall and a first ring wall extending downward from the top wall, wherein the first ring wall and the top wall together define a downwardly open space for the temperature sensing element to be arranged therein; the heat collecting cover is arranged in the concave cavity in a manner that it can move up and down, and has the following two states:

[0014] In the exposed state, the top wall of the heat collecting cover is exposed outside the cavity through the opening;

[0015] In the folded state, the top wall of the heat collecting cover is located in the concave cavity;

[0016] The temperature sensing probe also includes:

[0017] The first elastic member acts on the heat collecting cover so that the heat collecting cover and the temperature sensing element always have a tendency to move upward to an exposed state.

[0018] In this way, when there is no pot above the temperature sensing probe, its heat collecting cover is in an exposed state. When the pot is placed, the heat collecting cover moves down with the pot to a retracted state. At this time, the top wall of the heat collecting cover fits the bottom of the pot, and the temperature sensing element is wrapped in the double layer of the first ring wall and the ring side wall of the rod body, so its temperature measurement field is more stable and the temperature measurement accuracy is better. In addition, the ring side wall structure of the rod body in the utility model can be more stably matched and contacted with the bottom of the pot, and can be applied to pots of various shapes such as round bottom pots and flat pans.

[0019] Preferably, the annular side wall of the rod body extends outwardly from bottom to top in an inclined manner. In this way, whether a flat-bottomed pan or a round-bottomed pan is placed, the stability is good.

[0020] To further improve the accuracy of temperature measurement, preferably, when the heat collecting cover is in an exposed state, the first ring wall of the heat collecting cover is located above the upper port of the rod body, and when the heat collecting cover is in a retracted state, the lower end of the first ring wall of the heat collecting cover is inserted into the upper port of the rod body. In this way, in the retracted state, the temperature sensing element is wrapped in multiple layers of the upper port of the rod body, the first ring wall, and the side wall of the rod body, so that the temperature measurement field is more stable and the temperature measurement accuracy is better.

[0021] Preferably, the heat collecting cover further has an arc-shaped wall extending downward from the edge of the top wall, and there are at least two arc-shaped walls which are arranged at intervals along the circumferential direction on the periphery of the first annular wall;

[0022] The positions of the circle wall of the rod body corresponding to the arc-shaped walls are also provided with insertion holes penetrating the wall thickness thereof, so that the lower ends of the corresponding arc-shaped walls can be inserted therein and can move up and down.

[0023] Furthermore, a retaining ring is provided below the circle wall of the rod body along the circumferential direction and connected to the lower end of each arc-shaped wall; when the heat collecting cover is in an exposed state, the upper surface of the retaining ring is in contact with the lower surface of the circle wall. In this way, the retaining ring can constrain the heat collecting cover to prevent the arc-shaped wall of the heat collecting cover from being separated from the insertion hole.

[0024] Furthermore, the first elastic member is a spring, which is arranged on the periphery of the first annular wall and the inner periphery of each arc-shaped wall, the upper end of the spring acts on the top wall of the heat collecting cover, and the lower end of the spring is supported on the annular wall of the rod body.

[0025] In the above schemes, preferably, a fixing rod and a second elastic member are also included, the interior of the fixing rod has a second channel running through from top to bottom, the lower end of the rod body is inserted into the second channel through the upper end of the second channel and can move up and down in the second channel, the second elastic member acts on the rod body so that the rod body always has a tendency to move upward.

[0026] Preferably, the inner wall surface of the fixing rod is provided with a guide groove extending up and down, and the rod body is provided with a guide protrusion, and the guide protrusion is inserted into the guide groove. In this way, the cooperation between the guide protrusion and the guide groove enables the rod body to only move up and down.

[0027] Preferably, the second elastic member is a spring arranged in the fixing rod, the upper end of which acts on the lower end of the rod body, and the lower end of which is supported on the step surface inside the fixing rod.

[0028] The technical solution adopted by the utility model to solve the second technical problem is: a combustion component, characterized by having the temperature sensing probe as described above.

[0029] The combustion assembly is used for a stove.

[0030] Compared with the prior art, the utility model has the following advantages: when there is no pot above the temperature sensing probe, the heat collecting cover is in an exposed state, and when the pot is placed, the heat collecting cover moves down with the pot to a retracted state, at which time the top wall of the heat collecting cover fits the bottom of the pot, and the temperature sensing element is wrapped in double layers by the first ring wall and the ring side wall of the rod body, so the temperature measurement field is more stable and the temperature measurement accuracy is better. In addition, the ring side wall structure of the rod body in the utility model can be more stably matched and contacted with the bottom of the pot, and can be applied to pots of various shapes such as round bottom pots and flat pans. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic diagram of the structure of the temperature sensing probe in the embodiment of the utility model;

[0032] Figure 2 This is a schematic diagram of the structure of the temperature sensing probe in another viewing angle in the embodiment of the utility model;

[0033] Figure 3 A longitudinal cross-sectional view of a temperature sensing probe in an embodiment of the utility model;

[0034] Figure 4 This is a three-dimensional exploded view of the temperature sensing probe in the embodiment of the utility model;

[0035] Figure 5 This is a schematic diagram of the structure of the heat collecting cover in the embodiment of the utility model;

[0036] Figure 6 It is a schematic diagram of the structure of the combustion assembly in the embodiment of the utility model. DETAILED DESCRIPTION

[0037] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0038] like Figures 1 to 6 As shown, a preferred embodiment of a temperature sensing probe and a combustion assembly of the utility model is shown. The temperature sensing probe includes a rod body 1, a temperature sensing element 2, a heat collecting cover 3, a first elastic member 4, a retaining ring 5, a fixing rod 6 and a second elastic member 7.

[0039] The rod body 1 is vertically arranged, and has a first channel 10 extending up and down inside, and the upper port 100 and the lower port of the first channel 10 are both open. The rod body 1 also has a ring wall 11 extending outward from the periphery of the upper port 100 of the first channel 10, and a ring side wall 12 extending upward from the outer periphery of the ring wall 11, and the ring side wall 12 and the ring wall 11 together define a concave cavity 13 with an opening facing upward. In this embodiment, the ring side wall 12 of the rod body 1 extends outward obliquely from bottom to top. The ring wall 11 is provided with a plug hole 110 that penetrates the wall thickness, and there are three plug holes 110, which are arranged at intervals along the circumferential direction.

[0040] like Figure 5 As shown, the heat collecting cover 3 can conduct heat, and has a top wall 31, a first annular wall 32 extending downward from the top wall 31, and the first annular wall 32 and the top wall 31 jointly define a downwardly open space 320 for the temperature sensing element 2 to be arranged therein, and the wire connected to the temperature sensing element 2 passes downward through the upper port 100 of the rod body 1 and then passes through the rod body 1; the heat collecting cover 3 also has an arc wall 33 extending downward from the edge of the top wall 31, and there are three arc walls 33, which are arranged at intervals along the circumferential direction on the periphery of the first annular wall 32. The heat collecting cover 3 is arranged in the concave cavity 13, and the lower end of the arc wall 33 passes through the respective corresponding jacks 110 from top to bottom and is connected to the retaining ring 5 located below the ring wall 11 along the circumferential direction (connected by screws), so that the heat collecting cover and the retaining ring 5 can move up and down together, and have the following two states:

[0041] In the exposed state, the top wall 31 of the heat collecting cover 3 is exposed outside the cavity 13 through the opening, the first ring wall 32 of the heat collecting cover 3 is located above the upper port 100 of the rod body 1, and the upper surface of the retaining ring 5 is in contact with the lower surface of the ring wall 11; see details. Figure 3 ;

[0042] In the folded state, the top wall 31 of the heat collecting cover 3 is located in the concave cavity 13, the lower end of the first ring wall 32 of the heat collecting cover 3 is inserted into the upper port 100 of the rod body 1, and the upper surface of the retaining ring 5 is spaced apart from the lower surface of the ring wall 11.

[0043] like Figure 3 , 4 As shown, the first elastic member 4 is a spring, which is arranged on the periphery of the first annular wall 32 and the inner periphery of each arc wall 33. The upper end of the spring acts on the top wall 31 of the heat collecting cover 3, and the lower end of the spring is supported on the ring wall 11 of the rod body 1, so that the heat collecting cover 3 and the temperature sensing element 2 always have a tendency to move upward to an exposed state.

[0044] The above-mentioned fixed rod 6 is arranged vertically, and has a second channel 60 which runs vertically therein. The lower end of the rod body 1 is inserted into the second channel 60 through the upper end of the second channel 60, and can move up and down in the second channel 60. The second elastic member 7 acts on the rod body 1 so that the rod body 1 always has a tendency to move upward. In this embodiment, in order to enable the rod body 1 to only move up and down in the fixed rod 6 but not to rotate in the circumferential direction, the inner wall surface of the fixed rod 6 is provided with a guide groove 61 extending up and down, and the rod body 1 is provided with a guide protrusion 14, which is inserted into the guide groove 61. In this way, when the rod body 1 moves up and down, the guide protrusion 14 moves along the guide groove 61. The above-mentioned second elastic member 7 is a spring arranged in the fixed rod 6, the upper end of which acts on the lower end of the rod body 1, and the lower end of which is supported on the step surface inside the fixed rod 6.

[0045] like Figure 6 As shown, the combustion assembly of this embodiment is used for a stove, including an existing burner 8 and the above-mentioned temperature sensing probe. The temperature sensing probe is vertically arranged in the center of the burner 8. The fixing rod 6 of the temperature sensing probe is fixed relative to the burner 8. The temperature sensing element 2 is used to detect the temperature of the bottom of the pot. When the pot is actually placed, the bottom of the pot presses down the heat collecting cover 3, so that the heat collecting cover 3 is in a folded state. At the same time, the upper end of the annular side wall 12 of the rod body 1 located on the outer periphery of the heat collecting cover 3 contacts the bottom of the pot to ensure the stability of the structure. And different pots such as round-bottomed pots and flat pans have different downward displacements on the heat collecting cover 3 and the temperature sensing element therein.

[0046] The temperature sensing probe of the utility model is convenient to disassemble and assemble. By unscrewing the screws between the retaining ring 5 and the arc-shaped wall 33, the heat collecting cover 3 can be removed, thereby removing the temperature sensing element 2.

[0047] In the specification and claims of the present invention, terms indicating directions, such as "upper", "lower", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity.

[0048] The term "vertical" is also used in the specification and claims of the present utility model, which means basically along the up and down direction, and is not limited to the vertical direction only, and can also be slightly inclined relative to the vertical direction.

Claims

1. A temperature sensing probe, comprising: A rod body (1) having a first channel (10) extending upward therein, wherein an upper end (100) of the first channel (10) is open; Temperature sensing element (2); Features: The rod body (1) further comprises a ring wall (11) extending outward from the periphery of the upper port (100) of the first channel (10), and an annular side wall (12) extending upward from the outer periphery of the ring wall (11), wherein the annular side wall (12) and the ring wall (11) jointly define a concave cavity (13) with an opening facing upward; The temperature sensing probe also includes: A heat-conducting heat collecting cover (3) having a top wall (31) and a first annular wall (32) extending downward from the top wall (31), wherein the first annular wall (32) and the top wall (31) jointly define a downwardly open space (320) for the temperature sensing element (2) to be arranged therein; The heat collecting cover (3) is arranged in the concave cavity (13) in a manner that allows it to move up and down, and has the following two states: In the exposed state, the top wall (31) of the heat collecting cover (3) is exposed outside the cavity (13) through the opening; In the folded state, the top wall (31) of the heat collecting cover (3) is located in the concave cavity (13); The temperature sensing probe also includes: The first elastic member (4) acts on the heat collecting cover (3) so that the heat collecting cover (3) and the temperature sensing element (2) always have a tendency to move upward to an exposed state.

2. The temperature sensing probe according to claim 1, characterized in that: The annular side wall (12) of the rod body (1) extends outwardly from bottom to top.

3. The temperature sensing probe according to claim 1, characterized in that: When the heat collecting cover (3) is in an exposed state, the first annular wall (32) of the heat collecting cover (3) is located above the upper port (100) of the rod body (1); when the heat collecting cover (3) is in a retracted state, the lower end of the first annular wall (32) of the heat collecting cover (3) is inserted into the upper port (100) of the rod body (1).

4. The temperature sensing probe according to claim 1, characterized in that: The heat collecting cover (3) further comprises an arc-shaped wall (33) extending downward from the edge of the top wall (31), and there are at least two arc-shaped walls (33) arranged at intervals along the circumferential direction on the periphery of the first annular wall (32); The ring wall (11) of the rod body (1) is provided with insertion holes (110) penetrating the wall thickness thereof at positions corresponding to the arc-shaped walls (33), so that the lower ends of the corresponding arc-shaped walls (33) can be inserted therein and moved up and down.

5. The temperature sensing probe according to claim 4, characterized in that: It also includes a retaining ring (5), which is circumferentially arranged below the circle wall (11) of the rod body (1) and connected to the lower end of each arc-shaped wall (33); when the heat collecting cover (3) is in an exposed state, the upper surface of the retaining ring (5) is in contact with the lower surface of the circle wall (11).

6. The temperature sensing probe according to claim 4, characterized in that: The first elastic member (4) is a spring, which is arranged on the periphery of the first annular wall (32) and the inner periphery of each arc-shaped wall (33), the upper end of the spring acts on the top wall (31) of the heat collecting cover (3), and the lower end of the spring is supported on the annular wall (11) of the rod body (1).

7. The temperature sensing probe according to any one of claims 1 to 6, characterized in that: The invention also comprises a fixing rod (6) and a second elastic member (7); the fixing rod (6) has a second passage (60) extending vertically therethrough; the lower end of the rod body (1) is inserted into the second passage (60) through the upper end of the second passage (60) and can move up and down in the second passage (60); the second elastic member (7) acts on the rod body (1) so that the rod body (1) always has a tendency to move upward.

8. The temperature sensing probe according to claim 7, characterized in that: The inner wall surface of the fixing rod (6) is provided with a guide groove (61) extending up and down, and the rod body (1) is provided with a guide protrusion (14), and the guide protrusion (14) is inserted into the guide groove (61).

9. The temperature sensing probe according to claim 7, characterized in that: The second elastic member (7) is a spring arranged in the fixing rod (6), the upper end of which acts on the lower end of the rod body (1), and the lower end of which is supported on the step surface inside the fixing rod (6).

10. A combustion assembly, characterized in that A temperature sensing probe as claimed in any one of claims 1 to 9.

11. The combustion assembly according to claim 10, characterized in that: The combustion assembly is used for a stove.

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