Safe magnetic steel temperature limiter

Abstract

The utility model relates to the field of magnetic steel temperature limiters, and particularly discloses a safe magnetic steel temperature limiter which is characterized by comprising an outer cup, a first spring is movably connected in the outer cup, an inner cup is movably connected in the other end of the first spring, and the inner cup and the outer cup are in mutual sliding insertion connection. A hard magnetic plate is movably connected to the interior of the inner cup, a hard magnet is movably connected to the upper end of the hard magnetic plate, a second spring is movably connected to the upper end of the hard magnetic plate, a mounting assembly is fixedly connected to the upper end of the inner cup, and a cover plate is fixedly connected to the upper end of the inner cup through the mounting assembly; a soft magnetic body is movably connected to the portion, located in the inner cup, of the lower end of the cover plate, a soft magnetic plate is clamped to the lower end of the soft magnetic body, the other end of a second spring is movably connected with the soft magnetic plate, and a heat dissipation assembly is fixedly connected to the outer side of the inner cup. By means of the structure, the situation that the temperature limiter is damaged when the cover plate is disassembled during maintenance is avoided.

Description

Technical Field

[0001] The utility model relates to the field of magnetic steel temperature limiters, in particular to a safety magnetic steel temperature limiter. Background Art

[0002] The magnetic steel temperature limiter is a key component for controlling the heating on and off of the mechanical rice cooker. The accuracy of its temperature sensing directly affects the cooking effect of the rice cooker. An important factor affecting the temperature sensing accuracy of the magnetic steel temperature limiter is the contact between the inner pot and the magnetic steel temperature limiter during the cooking process. In order to ensure the effective contact between the inner pot and the magnetic steel temperature limiter during the cooking process, it is necessary to ensure that the magnetic steel temperature limiter can still move up and down after being installed in the outer pot.

[0003] According to the Chinese patent with the publication number "CN204995240U", a magnetic steel temperature limiter outer cup structure is disclosed, which can solve the problem of the inner cup guide foot of the temperature limiter being stuck due to burrs. The structure includes a magnetic steel temperature limiter outer cup body, a guide hole for installing the inner cup guide foot of the magnetic steel temperature limiter is provided at the bottom of the outer cup body of the magnetic steel temperature limiter, and the middle part of the end of the inner cup guide foot of the magnetic steel temperature limiter is a limit part that is stuck in the guide hole by deformation, and a plurality of protrusions are provided on the long side of the guide hole, and the position of the protrusion is staggered with the movement trajectory of the limit part of the inner cup guide foot of the magnetic steel temperature limiter. The utility model transforms the line and surface contact between the guide hole of the traditional magnetic steel temperature limiter and the guide foot of the inner cup of the magnetic steel temperature limiter into point-surface contact, thereby avoiding the problem of the inner cup guide foot of the magnetic steel temperature limiter being stuck due to the burr of the inner cup guide foot of the magnetic steel temperature limiter, and because the position of the protrusion is staggered with the movement trajectory of the magnetic steel limiting part, it is avoided that the protrusion is stuck to the gap left after the limit part of the inner cup guide foot of the magnetic steel temperature limiter is deformed;

[0004] It can be seen from the above structure that when the above device is installing the outer cup body of the magnetic steel temperature limiter and the inner cup of the magnetic steel temperature limiter, they are twisted and clamped through the limiting part, and this method is similar to the installation method of the prior art, but it is very inconvenient when installing and disassembling the outer cup and the inner cup, and the existing temperature limiter does not have a corresponding heat dissipation structure when in use, resulting in a slow heat dissipation speed and low safety when the limiter is in use.

[0005] To this end, we propose a safety magnetic steel temperature limiter to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a safe magnetic steel temperature limiter to solve the problems of the magnetic steel temperature limiter proposed in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides a safety magnetic steel temperature limiter, including an outer cup, the interior of the outer cup is movably connected to a first spring, the other end of the first spring is movably connected to an inner cup, the inner cup and the outer cup are slidably plugged into each other, the interior of the inner cup is movably connected to a hard magnetic plate, the upper end of the hard magnetic plate is movably connected to a hard magnet, the upper end of the hard magnetic plate is movably connected to a second spring, the upper end of the inner cup is fixedly connected to a mounting assembly, the upper end of the inner cup is fixedly connected to a cover plate via the mounting assembly, the lower end of the cover plate is located inside the inner cup and is movably connected to a soft magnetic body, the soft magnetic A soft magnetic plate is clamped at the lower end of the main body, and the other end of the second spring is movably connected to the soft magnetic plate. A heat dissipation component is fixedly connected to the outer side of the inner cup, and an operating rod is fixedly connected to the lower end of the hard magnetic plate. The operating rod passes through the inner cup and the outer cup, and the other end of the operating rod is fixedly connected to the mounting end, and the other end of the mounting end is fixedly connected to a connecting rod. Slide grooves are provided on both sides of the outer surface of the inner cup, and sliders are slidably connected to the inside of the slide grooves, and spring rings are fixedly connected to the outer sides of the sliders, and spring grooves are provided at the lower ends of the spring rings, and the other end of the first spring is clamped to the spring grooves.

[0008] In a further embodiment, the heat dissipation component includes a mounting groove arranged on the outer side of the inner cup, a mounting rod is fixedly connected to the inside of the mounting groove, a cooling fan is fixedly connected to one side of the mounting rod, and a plurality of mounting grooves are provided. A heat dissipation hole is opened on the outer side of the inner cup, a filter is fixedly connected to the outer side of the inner cup, the filter wraps the heat dissipation hole, a through groove is opened on the outer side of the outer cup, and a plurality of through grooves are provided. The heat dissipation component is set up so that the heat dissipation effect can be achieved through the cooling fan when the temperature limiter is at a high temperature, thereby increasing the safety of the temperature limiter.

[0009] In a further embodiment, the mounting end includes a groove arranged at the lower end of the operating rod, a screw rod is rotatably connected inside the groove, threaded parts are threadedly connected on both sides of the outer surface of the screw rod, a clamping block is fixedly connected to the other end of the threaded part, a clamping head is fixedly connected to the opposite side of the clamping block, and the clamping head and one end of the connecting rod are clamped with each other; by setting the mounting end, when the connecting rod and the operating rod are installed, the installation is more stable and the risk of separation between the connecting rod and the operating rod can be avoided.

[0010] In a further embodiment, the mounting assembly includes mounting holes arranged on the surface of the top cover, and there are multiple mounting holes, and the mounting holes pass through the upper ends of the soft magnetic plate and the inner cup, and mounting nails are inserted into the inside of the mounting holes, and the mounting nails pass through the mounting holes and are threadedly connected with mounting nuts, the lower end of the inner cup is fixed with a connecting plate, and the other end of the connecting plate is fixedly connected with a rotating rod, and the other end of the rotating rod is fixedly connected with a clamping plate, and the lower end of the outer cup is provided with a connecting hole, and the connecting plate passes through the connecting hole, and the clamping plate and the lower end of the outer cup are clamped with each other; the setting of the mounting assembly can make the installation of the temperature limiter more convenient, more flexible and more effective.

[0011] In a further embodiment, the lower end of the soft magnetic plate and the upper end of the inner cup are clamped together, a sealing groove is opened at the lower end of the soft magnetic plate, a sealing block is fixedly connected to the upper end of the inner cup, the sealing groove and the sealing block are clamped together, the lower end of the soft magnetic plate and the surface of the hard magnetic plate are plugged into each other, the lower end of the soft magnetic plate is fixedly connected to a guide rod, a guide hole is opened on the surface of the hard magnetic plate, and the guide rod and the guide hole are plugged into each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] First, in the utility model, by setting the installation assembly, when in use, the connecting plate at the lower end of the inner cup is passed through the connecting hole inside the outer cup, and after the connecting plate and the connecting hole are plugged in, the clamping plate can be rotated so that the clamping plate and the connecting plate are in a cross shape, and then the inner cup can be installed inside the outer cup. When the inner cup is installed in this way, the installation is more convenient and the disassembly is also more convenient, which makes it more convenient to assemble the temperature limiter. The service life of the inner cup when installed in this way is longer, and it is more practical and more convenient than the installation by bending. When installing the cover plate of the inner cup, first, the soft magnetic plate and the cover plate can be placed on the upper end of the inner cup respectively, and then the installation effect can be achieved by the installation nails, so that the cover plate can be easily disassembled and assembled when installed in this way, avoiding the situation where the cover plate is damaged when the temperature limiter is repaired;

[0014] Secondly, in the utility model, by setting up the heat dissipation component, when the temperature limiter is overheated and the power is disconnected, the heat dissipation fan is started so that the high-temperature heat inside the inner cup can be discharged through the installation groove under the action of the heat dissipation fan, and then the soft magnetic body and the cover plate can be effectively cooled under the action of the heat dissipation fan, avoiding the situation where the operator accidentally touches the temperature limiter and causes scalding. When the heat dissipation fan discharges the heat inside the inner cup, the heat dissipation holes and the through grooves can effectively circulate and guide the air, which can further increase the heat dissipation effect of the temperature limiter. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the structure of the soft magnetic plate and the hard magnetic plate in the utility model;

[0017] Figure 3 For the utility model Figure 2 A side view structural schematic diagram of;

[0018] Figure 4 It is a structural schematic diagram of the heat dissipation component in the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the inner cup in the utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the Chinese and foreign cups of the utility model;

[0021] Figure 7 For the utility model Figure 6 A side view structural schematic diagram of;

[0022] Figure 8 For the utility model Figure 3 Schematic diagram of the enlarged structure of part A.

[0023] In the figure: 1, outer cup, 2, inner cup, 3, first spring, 4, hard magnetic plate, 5, second spring, 6, soft magnetic plate, 7, soft magnetic body, 8, cover plate, 9, operating rod, 10, connecting rod, 11, mounting assembly, 111, mounting hole, 112, mounting nail, 113, connecting plate, 114, rotating rod, 115, clamping plate, 116, connecting hole, 12, mounting end, 121, groove, 122, screw rod, 123, threaded part, 124, clamping block, 125, clamping head, 13, sealing groove, 14, sealing block, 15, guide rod, 16, guide hole, 17, slide groove, 18, slider, 19, spring ring, 20, spring groove, 21, through groove, 22, heat dissipation hole, 23, filter screen, 24, heat dissipation assembly, 241, mounting groove, 242, mounting rod, 243, cooling fan. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 8 In the embodiment of the utility model, the outer cup 1 is provided, wherein the inner portion of the outer cup 1 is movably connected with a first spring 3, and the inner portion of the other end of the first spring 3 is movably connected with an inner cup 2, the inner cup 2 and the outer cup 1 are slidably plugged into each other, the inner portion of the inner cup 2 is movably connected with a hard magnetic plate 4, the upper end of the hard magnetic plate 4 is movably connected with a hard magnet, the upper end of the hard magnetic plate 4 is movably connected with a second spring 5, the upper end of the inner cup 2 is fixedly connected with a mounting assembly 11, the upper end of the inner cup 2 is fixedly connected with a cover plate 8 through the mounting assembly 11, the lower end of the cover plate 8 is located inside the inner cup 2 and is movably connected with a soft magnetic body 7, and the lower end of the soft magnetic body 7 is clamped with a soft magnetic plate 6, The other end of the second spring 5 is movably connected to the soft magnetic plate 6, the outer side of the inner cup 2 is fixedly connected to the heat dissipation component 24, the lower end of the hard magnetic plate 4 is fixedly connected to the operating rod 9, the operating rod 9 passes through the inner cup 2 and the outer cup 1, the other end of the operating rod 9 is fixedly connected to the mounting end 12, the other end of the mounting end 12 is fixedly connected to the connecting rod 10, both sides of the outer surface of the inner cup 2 are provided with sliding grooves 17, the inside of the sliding grooves 17 is slidably connected to the slider 18, the outer side of the slider 18 is fixedly connected to the spring ring 19, the lower end of the spring ring 19 is provided with a spring groove 20, and the other end of the first spring 3 is clamped with the spring groove 20.

[0026] See also Figure 4-Figure 7 The heat dissipation component 24 includes a mounting groove 241 arranged on the outer side of the inner cup 2, a mounting rod 242 is fixedly connected inside the mounting groove 241, a heat dissipation fan 243 is fixedly connected to one side of the mounting rod 242, a plurality of mounting grooves 241 are provided, a heat dissipation hole 22 is opened on the outer side of the inner cup 2, a filter 23 is fixedly connected to the outer side of the inner cup 2, the filter 23 wraps the heat dissipation hole 22, a through groove 21 is opened on the outer side of the outer cup 1, and a plurality of through grooves 21 are provided; through the heat dissipation component 24, when the temperature limiter is overheated and the power is disconnected, the heat dissipation fan 243 is started so that the high temperature heat inside the inner cup 2 is discharged through the mounting groove 241 under the action of the heat dissipation fan 243, and then the soft magnetic body 7 and the cover plate 8 can be effectively cooled under the action of the heat dissipation fan 243, so as to avoid the situation where the operator accidentally touches the temperature limiter and causes scalding, and when the heat dissipation fan 243 discharges the heat inside the inner cup 2, the heat dissipation hole 22 and the through groove 21 can effectively perform the effect of circulating and guiding air.

[0027] See also Figure 1 , Figure 2 and Figure 8The mounting end 12 includes a groove 121 arranged at the lower end of the operating rod 9, a screw rod 122 is rotatably connected inside the groove 121, and both sides of the outer surface of the screw rod 122 are threadedly connected with threaded members 123, and the other end of the threaded member 123 is fixedly connected with a clamping block 124, and the opposite side of the clamping block 124 is fixedly connected with a clamping head 125, and the clamping head 125 is mutually clamped with one end of the connecting rod 10; through the provided mounting end 12, when the temperature limiter and the rice cooker are installed, the screw rod 122 can be rotated first so that the screw members 123 move relative to each other under the rotation of the screw rod 122, and the distance between the screw members 123 on both sides becomes The distance between the clamping blocks 124 will become larger and larger, so that the clamping heads 125 are disconnected, and then the connecting rod 10 of the rice cooker is placed between the clamping heads 125 of the mounting end 12, and then the screw rod 122 is rotated so that the threaded members 123 are brought together under the rotation of the screw rod 122, and the connecting rod 10 can be clamped when the threaded members 123 are brought together, and while clamping, the connecting rod 10 and the mounting end 12 are rotationally connected, so that it is more convenient to control the operating rod 9 through the connection, and at the same time, the connection between the connecting rod 10 and the operating rod 9 can be more firmly connected under the action of the mounting end 12.

[0028] See also Figure 1 , Figure 2 , Figure 5 and Figure 7 The mounting assembly 11 includes a mounting hole 111 arranged on the surface of the top cover, and a plurality of mounting holes 111 are provided. The mounting holes 111 penetrate the upper ends of the soft magnetic plate 6 and the inner cup 2. The mounting holes 111 are all inserted with mounting nails 112. The mounting nails 112 penetrate the mounting holes 111 and are threadedly connected with mounting nuts. The lower end of the inner cup 2 is fixedly connected with a connecting plate 113. The other end of the connecting plate 113 is fixedly connected with a rotating rod 114. The other end of the rotating rod 114 is fixedly connected with a clamping plate 115. The lower end of the outer cup 1 is provided with a connecting hole 116. The connecting plate 113 penetrates the connecting hole 116. The clamping plate 115 is clamped with the lower end of the outer cup 1. By passing the connecting plate 113 at the lower end of the inner cup 2 through the inner end of the outer cup 1, the outer cup 1 is fixedly connected with the outer cup 1. Connecting hole 116, and after the connection plate 113 and the connecting hole 116 are plugged in, the clamping plate 115 can be rotated to make the clamping plate 115 and the connecting plate 113 form a cross shape so that the inner cup 2 can be installed inside the outer cup 1, and when the inner cup 2 is installed in this way, the installation is more convenient and the disassembly is also more convenient, which makes it more convenient to assemble the temperature limiter, and the service life of the inner cup 2 is longer when installed in this way. Compared with the installation by bending, it is more practical and more convenient, and when installing the cover plate 8 of the inner cup 2, the soft magnetic plate 6 and the cover plate 8 can be placed on the upper end of the inner cup 2 respectively, and then the installation effect can be achieved through the installation nail 112.

[0029] See also Figure 2-Figure 4The lower end of the soft magnetic plate 6 is clamped with the upper end of the inner cup 2, a sealing groove 13 is provided at the lower end of the soft magnetic plate 6, a sealing block 14 is fixedly connected to the upper end of the inner cup 2, the sealing groove 13 and the sealing block 14 are clamped with each other, the lower end of the soft magnetic plate 6 is plugged with the surface of the hard magnetic plate 4, the lower end of the soft magnetic plate 6 is fixedly connected with a guide rod 15, a guide hole 16 is provided on the surface of the hard magnetic plate 4, and the guide rod 15 and the guide hole 16 are plugged with each other; by the action of the set sealing block 14 and the sealing groove 13, the installation between the cover plate 8 and the inner cup 2 can be tighter, so that the sensitivity is higher when the temperature limiter is used, and the offset between the hard magnetic plate 4 and the soft magnetic plate 6 can be avoided under the action of the guide rod 15.

[0030] The working principle of the utility model is as follows: when the device is installed, the connecting plate 113 at the lower end of the inner cup 2 is passed through the connecting hole 116 inside the outer cup 1, and after the connecting plate 113 and the connecting hole 116 are plugged in, the clamping plate 115 can be rotated so that the clamping plate 115 and the connecting plate 113 are in a cross shape, and then the inner cup 2 can be installed inside the outer cup 1. When the inner cup 2 is installed in this way, the installation is more convenient and the disassembly is also more convenient, so that the assembly of the temperature limiter is more convenient, and the service life of the inner cup 2 when installed in this way is extended. The utility model is better and more convenient than the installation by bending. When installing the cover plate 8 of the inner cup 2, the soft magnetic plate 6 and the cover plate 8 can be placed on the upper end of the inner cup 2 respectively, and then the installation effect can be performed by installing the nail 112. After the installation is completed, the temperature limiter and the rice cooker can be installed. When installing the connecting rod 10 of the rice cooker, the screw rod 122 is rotated so that the threaded parts 123 move relative to each other under the rotation of the screw rod 122, and the distance between the threaded parts 123 on both sides becomes larger, so that the distance between the clamping blocks 124 will become farther and farther, so that the distance between the clamping heads 125 The connection is then disconnected, and then the connecting rod 10 of the rice cooker is placed between the clamping heads 125 of the mounting end 12, and then the screw rod 122 is rotated so that the threaded member 123 is brought close to each other under the rotation of the screw rod 122, and the connecting rod 10 can be clamped when the threaded member 123 is brought close to each other, and while clamping, the connecting rod 10 and the mounting end 12 are rotationally connected, so that it is more convenient to control the operating rod 9 through the connection, and at the same time, the connection between the connecting rod 10 and the operating rod 9 can be more firmly connected under the action of the mounting end 12, and after the connecting rod 10 is connected to the operating rod 9 of the temperature limiter, When the device is used normally, when the temperature limiter is overheated and the power is disconnected, the cooling fan 243 is started so that the high-temperature heat inside the inner cup 2 can be discharged through the mounting groove 241 under the action of the cooling fan 243, and then the soft magnetic body 7 and the cover plate 8 can be effectively cooled under the action of the cooling fan 243, so as to avoid the situation where the operator accidentally touches the temperature limiter and causes burns to the person. When the cooling fan 243 discharges the heat inside the inner cup 2, the cooling holes 22 and the through grooves 21 can effectively circulate and guide the air, so as to further increase the heat dissipation effect of the temperature limiter.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A safety magnetic steel temperature limiter, characterized in that: The invention comprises an outer cup, wherein the inner part of the outer cup is movably connected to a first spring, the other end of the first spring is movably connected to an inner cup, the inner cup and the outer cup are slidably plugged into each other, the inner part of the inner cup is movably connected to a hard magnetic plate, the upper end of the hard magnetic plate is movably connected to a hard magnet, the upper end of the hard magnetic plate is movably connected to a second spring, the upper end of the inner cup is fixedly connected to a mounting assembly, the upper end of the inner cup is fixedly connected to a cover plate through the mounting assembly, the lower end of the cover plate is located inside the inner cup and is movably connected to a soft magnetic body, the lower end of the soft magnetic body is clamped with a soft magnetic plate, the other end of the second spring is movably connected to the soft magnetic plate, the outer side of the inner cup is fixedly connected to a heat dissipation assembly, the lower end of the hard magnetic plate is fixedly connected to an operating rod, the operating rod passes through the inner cup and the outer cup, the other end of the operating rod is fixedly connected to a mounting end, and the other end of the mounting end is fixedly connected to a connecting rod.

2. A safety magnetic steel temperature limiter according to claim 1, characterized in that: The heat dissipation component includes a mounting groove arranged on the outer side of the inner cup, a mounting rod is fixedly connected to the inside of the mounting groove, a heat dissipation fan is fixedly connected to one side of the mounting rod, and a plurality of mounting grooves are provided.

3. A safety magnetic steel temperature limiter according to claim 1, characterized in that: The outer side of the inner cup is provided with a heat dissipation hole, the outer side of the inner cup is fixedly connected with a filter net, the filter net wraps the heat dissipation hole, the outer side of the outer cup is provided with a through groove, and a plurality of through grooves are provided.

4. A safety magnetic steel temperature limiter according to claim 1, characterized in that: The mounting end includes a groove arranged at the lower end of the operating rod, a screw rod is rotatably connected inside the groove, threaded parts are threadedly connected on both sides of the outer surface of the screw rod, a clamping block is fixedly connected to the other end of the threaded part, a clamping head is fixedly connected to the opposite side of the clamping block, and the clamping head is clamped to one end of the connecting rod.

5. A safety magnetic steel temperature limiter according to claim 1, characterized in that: The mounting assembly includes a mounting hole arranged on the surface of the top cover, wherein a plurality of mounting holes are provided, and the mounting holes penetrate the upper ends of the soft magnetic plate and the inner cup, and mounting nails are inserted into the insides of the mounting holes, and the mounting nails penetrate the mounting holes and are threadedly connected with mounting nuts.

6. A safety magnetic steel temperature limiter according to claim 1, characterized in that: The lower end of the inner cup is fixedly connected with a connecting plate, the other end of the connecting plate is fixedly connected with a rotating rod, the other end of the rotating rod is fixedly connected with a clamping plate, the lower end of the outer cup is provided with a connecting hole, the connecting plate passes through the connecting hole, and the clamping plate and the lower end of the outer cup are clamped with each other.

7. A safety magnetic steel temperature limiter according to claim 1, characterized in that: Slide grooves are provided on both sides of the outer surface of the inner cup, and sliders are slidably connected inside the slide grooves. Spring rings are fixedly connected to the outer sides of the sliders. Spring grooves are provided at the lower ends of the spring rings, and the other end of the first spring is engaged with the spring groove.

8. The safety magnetic steel temperature limiter according to claim 1, characterized in that: The lower end of the soft magnetic plate is clamped with the upper end of the inner cup, a sealing groove is provided at the lower end of the soft magnetic plate, a sealing block is fixedly connected to the upper end of the inner cup, and the sealing groove and the sealing block are clamped with each other.

9. A safety magnetic steel temperature limiter according to claim 1, characterized in that: The lower end of the soft magnetic plate is plugged into the surface of the hard magnetic plate. The lower end of the soft magnetic plate is fixedly connected with a guide rod. The surface of the hard magnetic plate is provided with a guide hole. The guide rod and the guide hole are plugged into each other.

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