CN218942861U

CN218942861U - Electric chafing dish

Info

Publication number: CN218942861U
Application number: CN202223037508.8U
Authority: CN
Inventors: 朱泽春; 马涛
Original assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Current assignee: Hangzhou Joyoung Household Electrical Appliances Co Ltd
Priority date: 2022-11-15
Filing date: 2022-11-15
Publication date: 2023-05-02
Anticipated expiration: 2032-11-15

Abstract

The utility model discloses an electric chafing dish which comprises a shell and an adjustable temperature control assembly, wherein the adjustable temperature control assembly comprises an adjusting part, an adjustable temperature controller and a connecting rod for connecting the adjusting part and the adjustable temperature controller, the adjusting part comprises a bracket fixed in the shell, a limiting cover and a rotating piece rotationally connected with the bracket, the limiting cover is clamped and matched with the bracket to limit the axial movement of the rotating piece, one end of the rotating piece is connected with the connecting rod, and the other end of the rotating piece is connected with a knob outside the shell. The electric chafing dish has the characteristics of low cost and safe and reliable use.

Description

Electric chafing dish

[ field of technology ]

The utility model relates to the technical field of kitchen appliances, in particular to an electric chafing dish.

[ background Art ]

The electric chafing dish in the prior art comprises a temperature adjusting knob and a third-gear knob switch, the third-gear knob switch can be driven to adjust the temperature by rotating the temperature adjusting knob, and as the two ends of the third-gear knob switch are connected with high-voltage current, the safety risk exists during operation; in addition, the circuit of the three-gear knob switch is complex and has high cost, thereby increasing the manufacturing cost of the electric chafing dish.

[ utility model ]

The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing the electric chafing dish which has the characteristics of low cost and safe and reliable use.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the electric chafing dish comprises a shell and an adjustable temperature control assembly, wherein the adjustable temperature control assembly comprises an adjusting part, an adjustable temperature controller and a connecting rod connected with the adjusting part and the adjustable temperature controller, the adjusting part comprises a support fixed in the shell, a limiting cover and a rotating piece rotationally connected with the support, the limiting cover is matched with the support in a clamping manner to limit the axial movement of the rotating piece, one end of the rotating piece is connected with the connecting rod, and the other end of the rotating piece is connected with a knob outside the shell.

In the electric chafing dish, the rotating piece comprises a rotating shaft and a limiting plate arranged on the outer peripheral side of the rotating shaft, one end of the rotating shaft is connected with the knob, the other end of the rotating shaft penetrates through the limiting cover to be connected with the connecting rod, and the limiting plate is limited between the support and the limiting cover and rotates relative to the support and the limiting cover.

In the electric chafing dish, one side of the limiting plate facing the bracket is provided with a plurality of first antifriction convex points, and the first antifriction convex points are propped against the bracket; and/or, a plurality of second antifriction salient points are arranged on one side, facing the limiting plate, of the support, and the second antifriction salient points are propped against the limiting plate.

In the electric chafing dish, the limiting cover is provided with the avoidance through hole for the other end of the rotating shaft to penetrate, the aperture of the avoidance through hole is D, the outer diameter of the limiting plate is D1, and the D/D1 is more than or equal to 0.7 and less than or equal to 0.9.

In the electric chafing dish, the limiting plate is provided with a mounting groove which is recessed towards one side deviating from the knob, an elastic pin is arranged in the mounting groove, a plurality of teeth are continuously distributed on one side, facing the limiting plate, of the support around the rotating shaft, and the elastic pin abuts against the teeth.

In the electric chafing dish, the two ends of the connecting rod are provided with clamping hooks, the rotating shaft comprises an inner connecting section penetrating through the limiting cover, the inner connecting section is provided with a first clamping groove which is clamped with the clamping hooks, and the adjustable temperature controller is provided with a second clamping groove which is clamped with the clamping hooks.

In the electric chafing dish, the rotating shaft further comprises an outer connecting section with a non-circular section, and the center of the knob is provided with a connecting sleeve sleeved on the outer connecting section.

In the electric chafing dish, the support is independently formed by machining, the support comprises a vertical plate and a transverse plate bent inwards from the top of the vertical plate, the transverse plate is clamped with the top wall of the shell and/or is fixed through screw connection, and the rotating piece penetrates through the vertical plate.

In the electric chafing dish, the bracket and the shell are integrally processed and formed.

In the electric chafing dish, a plurality of third clamping grooves are circumferentially arranged on one side, away from the knob, of the support at intervals, the limiting cover is provided with a protruding block, and the protruding block is rotationally clamped into the third clamping grooves.

The utility model has the beneficial effects that:

according to the utility model, the adjustable temperature controller is adopted to replace the existing three-gear knob switch, so that no current exists at the knob, and no electric shock ignition safety risk exists, thereby ensuring the use safety and reliability of the product; in addition, the limiting cover is matched with the bracket in a clamping manner to limit the axial movement of the rotating piece, the rotating piece can be mounted on the shell and can be rotated relative to the shell, so that the knob can rotate through driving the rotating piece, the rotating piece drives the adjustable temperature controller to rotate through the connecting rod, temperature adjustment is achieved, the connecting rod is used for connecting the rotating piece and the adjustable temperature controller, fewer parts can be used for achieving the required functions, the structure is simplified to the greatest extent, and therefore the electric chafing dish is simpler and more convenient to assemble, and the manufacturing cost of the whole machine is lower.

The rotating piece comprises a rotating shaft and a limiting plate arranged on the periphery side of the rotating shaft, one end of the rotating shaft is connected with the knob, the other end of the rotating shaft penetrates through the limiting cover to be connected with the connecting rod, and the limiting plate is limited between the support and the limiting cover and rotates relative to the support and the limiting cover. The design can simplify the structure of the rotating piece, so as to facilitate the processing and forming of the rotating piece.

A plurality of first antifriction salient points are arranged on one side of the limiting plate, facing the support, and the first antifriction salient points are propped against the support; and/or, one side of the bracket facing the limiting plate is provided with a plurality of second antifriction convex points, and the second antifriction convex points are propped against the limiting plate. By means of the design, the contact area between the limiting plate and the support can be reduced, so that the friction resistance received when the limiting plate rotates is reduced, and further, the user can rotate the knob more labor-saving, and the operation experience of the user is improved.

The limiting cover is provided with an avoidance through hole for the other end of the rotating shaft to penetrate, the aperture of the avoidance through hole is D, the outer diameter of the limiting plate is D1, and the requirement of 0.7-0.9 of D/D1 is met. By means of the design, the axial limiting effect of the limiting cover on the limiting plate can be guaranteed, the contact area of the limiting plate and the limiting cover can be reduced to the greatest extent, and further friction resistance received when the limiting plate rotates is reduced, so that the user rotates the knob more labor is saved, and the operation experience of the user is further improved.

The limiting plate is provided with a mounting groove formed by sinking towards one side deviating from the knob, an elastic pin is arranged in the mounting groove, a plurality of teeth are continuously distributed on one side, facing the limiting plate, of the support around the rotating shaft, and the elastic pin abuts against the teeth. By the design, when the knob rotates, the elastic pin collides with the teeth to make a sound, so that a user can feel more handfeel when using the knob, and the use experience of the user is optimized.

The two ends of the connecting rod are provided with clamping hooks, the rotating shaft comprises an inner connecting section penetrating through the limiting cover, the inner connecting section is provided with a first clamping groove clamped with the clamping hooks, and the adjustable temperature controller is provided with a second clamping groove clamped with the clamping hooks. The design can simplify the assembly of the connecting rod and the rotating shaft and the assembly of the connecting rod and the adjustable temperature controller, thereby improving the assembly efficiency.

The rotary shaft also comprises an outer connecting section with a non-circular section, and a connecting sleeve sleeved on the outer connecting section is arranged at the center of the knob. The design simplifies the assembly of the rotating shaft and the knob, and can also lead the knob to drive the rotating shaft to synchronously rotate.

The support is independently formed by machining, the support comprises a vertical plate and a transverse plate bent inwards from the top of the vertical plate, the transverse plate is clamped with the top wall of the shell and/or fixed through screw connection, and the rotating piece penetrates through the vertical plate. By the design, the structure of the existing shell is not required to be changed, and only the independent processing and forming bracket is required to be installed in the shell, so that the transformation cost of the product is reduced.

The bracket and the shell are integrally formed. By the design, the assembly steps of products can be reduced, so that the assembly efficiency is improved, and the connection reliability of the bracket and the shell can be improved.

A plurality of third clamping grooves are circumferentially arranged at intervals on one side of the bracket, which is away from the knob, the limiting cover is provided with a bump, and the bump is rotationally clamped into the third clamping grooves. When the limiting cover is assembled, the protruding block is firstly arranged at the outer side of the third clamping groove, and then the protruding block is rotated to be clamped into the third clamping groove by rotating the limiting cover, so that the limiting cover can be clamped on the bracket; when the limiting cover is detached, the limiting cover is reversely rotated to enable the protruding blocks to be separated from the third clamping grooves, so that the limiting cover can be detached from the support, and the difficulty in detachment of the limiting cover and the support can be further reduced by the aid of the rotary clamping mode.

These features and advantages of the present utility model will be disclosed in detail in the following detailed description and the accompanying drawings.

[ description of the drawings ]

The utility model is further described with reference to the accompanying drawings:

FIG. 1 is an exploded view of a heating base according to a first embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an electric chafing dish according to the first embodiment of the utility model;

FIG. 3 is an enlarged schematic view of a portion of FIG. 2A;

FIG. 4 is a partial perspective cross-sectional view of a heating base in accordance with a first embodiment of the present utility model;

FIG. 5 is an exploded view of an adjusting part according to a first embodiment of the present utility model;

FIG. 6 is a schematic diagram illustrating an assembled structure of an adjustable temperature control assembly according to a first embodiment of the present utility model;

fig. 7 is a schematic view of a part of a heating base according to a first embodiment of the present utility model.

Reference numerals:

100. heating the base; 110. a housing; 111. a bottom cover; 112. a side case; 113. an upper cover; 114. a reflection cover; 115. a heating plate; 120. an adjusting section; 121. a bracket; 1211. a vertical plate; 1212. a transverse plate; 1213. a third clamping groove; 1214. teeth; 122. a limit cover; 1221. a bump; 1222. avoiding the through hole; 123. a rotating member; 1231. a rotation shaft; 12311. an inner connecting section; 12312. an outer connecting section; 1232. a limiting plate; 12321. a first antifriction bump; 12322. a mounting groove; 130. an adjustable temperature controller; 140. a connecting rod; 141. a clamping hook; 200. a pot body; 300. a knob; 310. connecting sleeves; 400. and an elastic pin.

[ detailed description ] of the utility model

The utility model provides an electric chafing dish, which comprises a shell and an adjustable temperature control assembly, wherein the adjustable temperature control assembly comprises an adjusting part, an adjustable temperature controller and a connecting rod for connecting the adjusting part and the adjustable temperature controller, the adjusting part comprises a bracket fixed in the shell, a limiting cover and a rotating piece rotationally connected with the bracket, the limiting cover is clamped and matched with the bracket to limit the axial movement of the rotating piece, one end of the rotating piece is connected with the connecting rod, and the other end of the rotating piece is connected with a knob outside the shell.

The technical solutions of the embodiments of the present utility model will be explained and illustrated below with reference to the drawings of the embodiments of the present utility model, but the following embodiments are only preferred embodiments of the present utility model, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present utility model.

Example 1

Referring to fig. 1 to 7, the electric chafing dish in this embodiment includes a heating base 100 and a pan body 200 placed on the heating base 100, the heating base 100 includes a housing 110 and an adjustable temperature control assembly, the housing 110 includes a bottom cover 111, an annular side case 112, an annular upper cover 113 and a reflecting cover 114, the side case 112, the upper cover 113 and the reflecting cover 114 can be fixed together by screws, the reflecting cover 114 is fixedly connected with the bottom cover 111 by screws, a heating plate 115 is provided on top of the reflecting cover 114, the pan body 200 is placed on the heating plate 115, the adjustable temperature control assembly includes an adjusting portion 120, an adjustable temperature controller 130 and a connecting rod 140, the connecting rod 140 connects the adjusting portion 120 with the adjustable temperature controller 130, the adjusting portion 120 includes a bracket 121 fixed in the housing 110, a limit cover 122 and a rotating member 123 rotatably connected with the bracket 121, the limit cover 122 is engaged with the bracket 121 to limit axial movement of the rotating member 123, one end of the rotating member 123 is connected with the connecting rod 140, and the other end is connected with a knob 300 outside the housing 110.

In the embodiment, the adjustable temperature controller 130 is adopted to replace the existing three-gear knob switch, so that no current exists at the knob 300, and the safety risk of electric shock ignition is avoided, thereby ensuring the safe and reliable use of the product; in addition, the limiting cover 122 is in clamping fit with the support 121 to limit the axial movement of the rotating member 123, the rotating member 123 can be mounted on the shell 110, meanwhile, the rotating member 123 can be guaranteed to rotate relative to the shell 110, so that the knob 300 can rotate through driving the rotating member 123, the rotating member 123 drives the adjustable temperature controller 130 to rotate through the connecting rod 140, temperature adjustment is achieved, the connecting rod 140 is used for connecting the rotating member 123 and the adjustable temperature controller 130, required functions can be achieved through fewer parts, the structure is simplified to the greatest extent, and therefore the electric chafing dish is simpler and more convenient to assemble, and the manufacturing cost of the whole machine is lower.

Specifically, the bracket 121 in this embodiment is formed by separately machining, the bracket 121 includes a vertical plate 1211 and a transverse plate 1212 bent inward from the top of the vertical plate 1211, and the transverse plate 1212 is fixed to the top wall of the housing 110 by screw connection, preferably, in this embodiment, the screws connecting the side case 112, the upper cover 113 and the reflective cover 114 penetrate through the transverse plate 1212 at the same time, so that the assembly of the side case 112, the upper cover 113 and the reflective cover 114 can be completed and the assembly of the bracket 121 can be completed. The limiting cover 122 is clamped on the vertical plate 1211, the rotating member 123 includes a rotating shaft 1231 and a limiting plate 1232 disposed on the outer peripheral side of the rotating shaft 1231, the limiting plate 1232 may be an annular plate or a fan-shaped plate, when the limiting plate 1232 is an arc-shaped plate, the plurality of limiting plates 1232 are circumferentially and uniformly distributed on the outer peripheral side of the rotating shaft 1231 at intervals, in this embodiment, the limiting plate 1232 is preferably an arc-shaped plate, the limiting plate 1232 is defined between the bracket 121 and the limiting cover 122 and rotates relative to the bracket 121 and the limiting cover 122, one end of the rotating shaft 1231 penetrates through the outer side walls of the vertical plate 1211 and the housing 110 and then is connected with the knob 300, and the other end penetrates through the limiting cover 122 and is connected with the connecting rod 140, so design can simplify the structure of the rotating member 123 to facilitate the processing and shaping of the rotating member 123; in addition, the design does not need to change the structure of the existing shell 110, and only the bracket 121 which is independently machined and molded is required to be installed in the shell 110, so that the modification cost of the product is reduced.

It will be appreciated that in other embodiments of the utility model, the transverse plate may also be snap-fitted to the top wall of the housing.

In order to realize that the limiting cover 122 is clamped on the bracket 121, in this embodiment, a plurality of third clamping grooves 1213 are uniformly spaced circumferentially on one side of the bracket 121 facing away from the knob 300, a plurality of outwards extending protruding blocks 1221 are arranged on the outer circumferential side of the limiting cover 122, the number of the protruding blocks 1221 is the same as that of the third clamping grooves 1213, the plurality of protruding blocks 1221 are uniformly spaced circumferentially on the outer circumferential side of the limiting cover 122, when the limiting cover 122 is assembled, the protruding blocks 1221 are firstly arranged on the outer side of the third clamping grooves 1213, and then the limiting cover 122 is rotated to rotationally clamp the protruding blocks 1221 into the third clamping grooves 1213, so that the limiting cover 122 can be clamped on the bracket 121; when the limiting cover 122 is detached, the bump 1221 can be separated from the third clamping groove 1213 by reversely rotating the limiting cover 122, so that the limiting cover 122 can be detached from the bracket 121, and the difficulty in detaching the limiting cover 122 and the bracket 121 can be further reduced by rotating the clamping manner.

It can be understood that in other embodiments of the present utility model, the protruding block may be further disposed on the bracket, and the third clamping groove is disposed on the outer peripheral side of the limiting cover, so that the limiting cover can be rotationally clamped on the bracket.

It can be understood that in other embodiments of the present utility model, the support is provided with a clamping hole, and the limiting cover is provided with a resilient buckle extending forward, and the resilient buckle is clamped with the clamping hole, so that the clamping fit between the limiting cover and the support can be realized.

In addition, in order to connect the rotating member 123 with the adjustable temperature controller 130 by using the connecting rod 140, two ends of the connecting rod 140 in the present embodiment are bent to form an L-shaped hook 141, the rotating shaft 1231 includes an inner connecting section 12311 penetrating through the limiting cover 122, the inner connecting section 12311 is located inside the limiting plate 1232, the inner connecting section 12311 is provided with a first slot, one hook 141 is clamped into the first slot and is clamped with the first slot, so that one end of the connecting rod 140 is connected and fixed with the rotating shaft 1231, a second slot is provided on the adjustable temperature controller 130, the other hook 141 is clamped into the second slot and is clamped with the second slot, so that the other end of the connecting rod 140 is connected and fixed with the adjustable temperature controller 130, and the assembly of the connecting rod 140 and the rotating shaft 1231 and the adjustable temperature controller 130 can be simplified, so that the assembly efficiency is improved.

It can be understood that in other embodiments of the present utility model, two ends of the connecting rod may be bent to form split rings, where one split ring is sleeved on the outer side of the inner connecting section and then is tightened on the inner connecting section by extrusion, so as to achieve connection and fixation between one end of the connecting rod and the rotating shaft, and the other split ring is sleeved on the outer side of the adjustable temperature controller and then is tightened on the adjustable temperature controller by extrusion, so as to achieve connection and fixation between the other end of the connecting rod and the adjustable temperature controller.

In addition, in order to enable the knob 300 to drive the rotation shaft 1231 to rotate synchronously, the rotation shaft 1231 in this embodiment further includes an outer connecting section 12312 located outside the limiting plate 1232, the cross section of the outer connecting section 12312 is non-circular, such as D-shaped, quadrilateral, hexagonal, etc., while the center of the knob 300 is provided with a connecting sleeve 310, the connecting sleeve 310 has a Kong Zhoukong matching with the shape of the outer connecting section 12312, and the connecting sleeve 310 is sleeved outside the outer connecting section 12312, so that the knob 300 can drive the rotation shaft 1231 to rotate synchronously, and during assembly, only the connecting sleeve 310 needs to be sleeved on the outer connecting section 12312, thereby simplifying assembly of the rotation shaft 1231 and the knob 300.

It will be appreciated that in other embodiments of the utility model, the connection sleeve and the outer connection section may also be keyed, and thus, the knob may be designed to drive the rotation shaft to rotate synchronously.

Secondly, in order to make the user rotate the knob 300 more labor-saving and improve the operation experience of the user, in this embodiment, a plurality of first antifriction bumps 12321 are arranged on one side of the limiting plate 1232 facing the support 121, the plurality of first antifriction bumps 12321 are uniformly distributed around the rotation axis 1231 at intervals in the circumferential direction, and the first antifriction bumps 12321 are propped against one side of the support 121 away from the knob 300, so that the contact area between the limiting plate 1232 and the support 121 can be reduced, the friction resistance applied when the limiting plate 1232 rotates can be reduced, and further the user can rotate the knob 300 more labor-saving and improve the operation experience of the user; in addition, through the design, the rotation stability of the limiting plate 1232 can be guaranteed, and the phenomenon that the rotating shaft 1231 is blocked due to the fact that the limiting plate 1232 deflects is avoided.

Preferably, in the present embodiment, the limiting cover 122 is provided with an avoidance through hole 1222 through which the inner connecting section 12311 penetrates, the aperture of the avoidance through hole 1222 is D, the outer diameter of the limiting plate 1232 is D1, which satisfies 0.7-0.9, and when D/D1 is less than 0.7, the contact area between the limiting plate 1232 and the limiting cover 122 is larger, so that the limiting plate 1232 receives larger friction resistance when rotating, which results in harder rotation of the knob 300 by a user, and reduces the operation experience of the user; when D/D1 > 0.9, can reduce spacing lid 122 and be located the structural strength and the area of limiting plate 1232 inboard part, can influence spacing lid 122 from this and to the spacing effect of limiting plate 1232's axial, and for this reason, D/D1 is preferably 0.8 in this embodiment, so design, can guarantee spacing lid 122 to the spacing effect of limiting plate 1232's axial, can furthest's reduction limiting plate 1232 and limiting plate 122's area of contact again, and then reduce the frictional resistance that receives when limiting plate 1232 rotates, more laborsaving when making user rotatory knob 300, further promote user's operation experience. Alternatively, D/D1 may also be, but is not limited to, 0.7, 0.75, 0.85, 0.9, etc.

Finally, the limiting plate 1232 in this embodiment is provided with a mounting groove 12322, the mounting groove 12322 is formed by recessing towards one side away from the knob 300, an elastic pin 400 is disposed in the mounting groove 12322, the elastic pin 400 includes a spring and a pin with a spherical head, the spring is pressed between the step surface of the pin and the bottom wall of the mounting groove 12322, a plurality of teeth 1214 are continuously distributed around the rotating shaft 1231 on one side of the bracket 121 towards the limiting plate 1232, and the elastic pin 400 is elastically abutted against the teeth 1214.

It can be appreciated that in other embodiments of the present utility model, a plurality of second antifriction bumps are disposed on a side of the support facing the limiting plate, where the plurality of second antifriction bumps are uniformly distributed around the rotation axis at intervals in the circumferential direction, and the second antifriction bumps are abutted against the limiting plate, so that the contact area between the limiting plate and the support can be reduced, and thus the friction resistance applied when the limiting plate rotates is reduced, further, the user can rotate the knob more effectively, and the operation experience of the user is improved.

It will be appreciated that in other embodiments of the utility model, the side of the limiting plate facing the support is provided with a plurality of first antifriction bumps, the first antifriction bumps are abutted against the support, and the side of the support facing the limiting plate is provided with a plurality of second antifriction bumps, the second antifriction bumps are abutted against the limiting plate.

Example two

Compared with the first embodiment, the difference of the present embodiment is that the bracket and the housing are integrally formed. By the design, the assembly steps of products can be reduced, so that the assembly efficiency is improved, and the connection reliability of the bracket and the shell can be improved.

While the utility model has been described in terms of embodiments, it will be appreciated by those skilled in the art that the utility model is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present utility model are intended to be included within the scope of the appended claims.

Claims

1. The electric chafing dish comprises a shell and an adjustable temperature control assembly, and is characterized in that the adjustable temperature control assembly comprises an adjusting part, an adjustable temperature controller and a connecting rod connected with the adjusting part and the adjustable temperature controller, the adjusting part comprises a support fixed in the shell, a limiting cover and a rotating piece rotationally connected with the support, the limiting cover is matched with the support in a clamping manner to limit the axial movement of the rotating piece, one end of the rotating piece is connected with the connecting rod, and the other end of the rotating piece is connected with a knob outside the shell.

2. The electric chafing dish as claimed in claim 1, wherein the rotation member comprises a rotation shaft having one end connected to the knob and the other end connected to the link through the limit cover, and a limit plate provided at an outer circumferential side of the rotation shaft, the limit plate being defined between the bracket and the limit cover and rotated relative to the bracket and the limit cover.

3. The electric chafing dish as claimed in claim 2, wherein a side of the limiting plate facing the bracket is provided with a plurality of first antifriction bumps, and the first antifriction bumps are abutted against the bracket; and/or, a plurality of second antifriction salient points are arranged on one side, facing the limiting plate, of the support, and the second antifriction salient points are propped against the limiting plate.

4. The electric chafing dish as claimed in claim 2, wherein the limit cover is provided with a through hole for the other end of the rotation shaft to pass through, the aperture of the through hole is D, the outer diameter of the limit plate is D1, and the D/D1 is more than or equal to 0.7 and less than or equal to 0.9.

5. The electric chafing dish as set forth in claim 2, wherein the limiting plate is provided with a mounting groove recessed toward a side facing away from the knob, an elastic pin is provided in the mounting groove, a plurality of teeth are continuously distributed around the rotation shaft toward a side of the limiting plate, and the elastic pin is abutted against the teeth.

6. The electric chafing dish as set forth in claim 2, wherein the two ends of the connecting rod are provided with hooks, the rotating shaft comprises an inner connecting section penetrating through the limiting cover, the inner connecting section is provided with a first clamping groove clamped with the hooks, and the adjustable temperature controller is provided with a second clamping groove clamped with the hooks.

7. The electric chafing dish as claimed in claim 2, wherein the rotation shaft further comprises an outer connection section having a non-circular cross section, and a connection sleeve fitted over the outer connection section is provided at the center of the knob.

8. Electric chafing dish as claimed in any of claims 1 to 7, wherein the support is formed by separate machining, the support comprising a vertical plate and a transverse plate bent inwards from the top of the vertical plate, the transverse plate being clamped to the top wall of the housing and/or secured by screw connection, the rotating member extending through the vertical plate.

9. An electric chafing dish as claimed in any one of claims 1 to 7, wherein said bracket is integrally formed with said housing.

10. The electric chafing dish of any one of claims 1 to 7, wherein a plurality of third clamping grooves are circumferentially arranged at intervals on one side of the bracket, which is away from the knob, and the limit cover is provided with a protruding block, and the protruding block is rotationally clamped into the third clamping grooves.