Hot-pressing sandwich machine

Abstract

The invention provides a hot-pressing sandwich machine which comprises a lower hot-pressing assembly and a lower hot-pressing assembly, the lower hot-pressing assembly comprises a lower cover and a lower baking tray arranged on the lower cover, the lower baking tray and the lower cover are in linear contact and / or point contact, a lower heat insulation groove is formed in the position, close to the periphery, of the side face, facing the lower cover, of the lower baking tray, and the contact position of the lower cover and the lower baking tray is located on the outer side of the lower heat insulation groove; the upper hot pressing assembly comprises an upper cover and an upper baking tray arranged on the upper cover, the upper baking tray and the upper cover are in linear contact and / or point contact, an upper heat insulation groove is formed in the position, close to the periphery, of the side face, facing the upper cover, of the upper baking tray, and the contact position of the upper cover and the upper baking tray is located on the outer side of the upper heat insulation groove. The upper heat insulation groove and the lower heat insulation groove are formed in the upper baking tray and the lower baking tray respectively, the upper baking tray and the upper cover are in linear contact and / or point contact, the lower baking tray and the lower cover are in linear contact and / or point contact, heat transfer to the upper cover and the lower cover can be greatly reduced, the temperature of the upper cover and the temperature of the lower cover cannot rise, and scalding is avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of cooking utensils, and in particular to a hot pressing sandwich machine. Background Art

[0002] With the accelerated pace of life, customers' demand for fast food is growing, especially during the breakfast, lunch and afternoon tea hours. Sandwich machines play an important role in the catering industry or families because of their fast and convenient sandwich making features. And with the continuous development of the catering market, the demand for commercial sandwiches will further increase. Due to the high temperature, long-lasting and durable characteristics of sandwich machines, their shell materials are mostly metal materials. And due to the characteristics of high temperature sandwich making, the shell surface temperature of sandwich machines on the market is very high during operation, which is easy to burn people. Therefore, the structure of sandwich machines needs to be further optimized.

[0003] The Chinese patent with the authorization announcement number CN211484160U discloses an intelligent double-head sandwich maker, which includes a sandwich maker base, a double heating storage frame is provided on the sandwich maker base, and a groove is provided on the upper end of the sandwich maker base, and a button switch electrically connected to the sandwich maker heating mechanism is provided in the groove, and a bracket is provided on the sandwich maker base, and the bracket is connected with a double pressure head through a connecting shaft, and the pressure head is provided with an insertion rod for inserting the groove of the sandwich maker base. The sandwich maker can increase the production of sandwiches and improve production efficiency. However, it does not have the function of low surface temperature, so it is easy to burn people and reduce the safety of use. Summary of the invention

[0004] In view of the above-mentioned problems existing in the prior art, an object of the embodiments of the present application is to provide a hot pressing sandwich machine which can reduce the surface temperature and avoid burns.

[0005] The technical solution adopted in the embodiment of the present application is a hot pressing sandwich machine, comprising:

[0006] A lower hot pressing assembly, comprising a lower cover and a lower baking tray disposed on the lower cover, wherein the lower baking tray is located above the lower cover and is in linear contact and / or point contact with the lower cover, a lower heat insulation groove is provided on the side of the lower baking tray facing the lower cover near the periphery, and the contact position between the lower cover and the lower baking tray is located outside the lower heat insulation groove;

[0007] An upper hot pressing assembly comprises an upper cover and an upper baking tray arranged on the upper cover, wherein the upper baking tray is located below the upper cover and is in linear contact and / or point contact with the upper baking tray, an upper heat-insulating groove is provided on the side of the upper baking tray facing the upper cover near the periphery, and the contact position between the upper cover and the upper baking tray is located outside the upper heat-insulating groove; wherein,

[0008] The upper hot pressing assembly is rotatably connected to the lower hot pressing assembly, and has a closed state in which it is latched with the lower hot pressing assembly and an open state in which it is separated from the lower hot pressing assembly. When the upper hot pressing assembly is in the closed state, the upper baking tray and the lower baking tray cooperate to hot press the sandwich sandwiched between them.

[0009] In the hot press sandwich maker according to the embodiment of the present application, by respectively providing an upper heat insulation groove and a lower heat insulation groove on the upper baking tray and the lower baking tray, and setting the upper baking tray and the upper cover, and the lower baking tray and the lower cover to be in linear contact and / or point contact, the heat transfer to the upper cover and the lower cover can be significantly reduced, so that the temperatures of the upper cover and the lower cover will not rise, and the occurrence of scalding can be avoided.

[0010] In an alternative embodiment, the upper cover has a structure with a closed top end and an open bottom end, and a lower convex edge extends outward from the periphery of the open bottom end; the outer peripheral edge of the upper baking tray protrudes toward the upper cover to form an upper retaining platform, the top surface of the upper retaining platform is an inclined surface, and the outer peripheral edge of the lower convex edge abuts against the top surface of the upper retaining platform and forms a linear contact with the top surface. The structure design of the upper hot pressing assembly is reasonable, which is beneficial to forming a linear contact between the outer peripheral edge of the upper cover and the upper baking tray, and significantly reducing heat transfer.

[0011] In an alternative embodiment, the lower cover has a structure with a closed bottom end and an open top end, and an upper convex edge extends outward from the periphery of the open top end; the outer peripheral edge of the lower baking tray protrudes toward the lower cover to form a lower retaining platform, the bottom surface of the lower retaining platform is an inclined surface, and the outer peripheral edge of the upper convex edge abuts against the bottom surface of the lower retaining platform and forms a linear contact with the bottom surface. The structure design of the lower hot pressing assembly is reasonable, which is beneficial to forming a linear contact between the outer peripheral edge of the lower cover and the lower baking tray, and significantly reducing heat transfer.

[0012] In an alternative embodiment, the middle part of the upper baking tray arches upward toward the upper cover to form an upper convex platform, and an upper heating tube is provided on the upper convex platform; a plurality of upper fixing seats isolated from the upper convex platform are provided in the upper heat insulation groove, and each upper fixing seat is respectively provided with a first upper connection hole; the upper cover is provided with second upper connection holes corresponding to the first upper connection holes one by one, and the upper cover is fixed and supported on the upper fixing seat by screws respectively passing through the corresponding first upper connection holes and the second upper connection holes. The upper cover is fixed and supported on the upper baking tray through the upper fixing seat, and there is an upper heat insulation groove between the fixing point and the upper heating tube on the upper baking tray, reducing the heat transfer from the upper baking tray to this fixing point. The structure design is ingenious and the heat insulation effect is good.

[0013] In an alternative embodiment, the upper cover has a structure with a closed top end and an open bottom end, a lower convex edge extends outward from the periphery of the open bottom end, and the lower surface of the lower convex edge is a plane; the top surface of the upper fixing seat is a plane, and the lower surface of the lower convex edge fits with the top surface of the upper fixing seat;

[0014] The outer peripheral edge of the upper baking tray protrudes towards the upper cover to form an upper retaining platform, and the lower convex edge is close to the upper retaining platform, and a gap is formed between the lower convex edge and the upper retaining platform. The structure is stable and reliable, and effectively reduces the heat transfer to the upper cover.

[0015] In an alternative embodiment, the middle part of the lower baking tray arches towards the lower cover to form a lower convex platform, and a lower heating tube is provided on the lower convex platform; a plurality of lower fixing seats isolated from the lower convex platform are provided in the lower heat insulation groove, and each of the lower fixing seats is respectively provided with a first lower connection hole; a second lower connection hole corresponding to the first lower connection hole one by one is provided on the lower cover, and the lower cover is fixed and supported on the lower fixing seat by screws respectively passing through the corresponding first lower connection hole and the second lower connection hole. The lower cover is fixed and supported by the lower fixing seat, and there is a lower heat insulation groove between the fixing point and the lower heating tube on the lower baking tray, reducing the heat transfer of the lower baking tray to the fixing point. The structural design is ingenious and the heat insulation effect is good.

[0016] In an alternative embodiment, the lower cover has a structure with a closed bottom end and an open top end, the peripheral edge of the open top end extends outward to form an upper convex edge, and the upper surface of the upper convex edge is a plane; the bottom surface of the lower fixing seat is a plane, and the upper surface of the upper convex edge is attached to the bottom surface of the lower fixing seat;

[0017] The outer peripheral edge of the lower baking tray protrudes towards the lower cover to form a lower retaining platform, and the upper convex edge is close to the lower retaining platform, and a gap is formed between the upper convex edge and the lower retaining platform. The structure is stable and reliable, and effectively reduces the heat transfer to the lower cover.

[0018] In an alternative embodiment, the hot press sandwich maker further includes a bottom cover assembly, the bottom cover assembly includes a bottom cover and an electric control component provided in the bottom cover; the lower cover is fixed on the top surface of the bottom cover, and the outer contour of the lower cover is adapted to the outer contour of the upper cover and is smaller than the outer contour of the top surface of the bottom cover; a control panel is provided on the front side surface of the bottom cover. It is beneficial to reduce the surface temperature of the bottom cover, avoid scalding users, and improve the use experience.

[0019] In an alternative embodiment, the upper hot press assembly further includes a handle, the handle includes a handle body, a bracket and a plug, the handle body is a rod-shaped structure and has an inner cavity penetrating through both ends in its axial direction; there are two plugs, which are respectively installed in the inner cavities at opposite ends of the handle body in an interference fit manner, and there are two brackets, which are respectively provided on opposite sides of the upper cover, and the two brackets are respectively connected to the plugs in the two ends of the handle body. The plugs are not easily detached from the handle body, and the structure is stable and reliable; the bracket of the handle is indirectly in contact with the handle body through the plug, which can reduce the temperature of the handle body.

[0020] In an optional embodiment, the plug includes an end plate and a tensioning portion provided on a plate surface on one side of the end plate, the tensioning portion includes a plurality of elastic arms, the plurality of elastic arms are arranged around the center of the end plate and extend synchronously in a direction perpendicular to the plate surface, so that the plurality of elastic arms surround a hole portion, and the end plate is provided with a through hole connected to the hole portion; the tensioning portion extends into the inner cavity at both ends of the handle, and the plurality of elastic arms are simultaneously retracted toward the hole portion under the action of the cavity wall of the inner cavity, the end plate is exposed outside the handle and abuts against the end surface of the handle, the bracket is abutted against the end plate and is fixed to the end plate by bolts that pass through the bracket, the end plate and the hole portion in sequence, and the bolt rod of the bolt pushes the plurality of elastic arms to open outward when passing through the hole portion, so that the plurality of elastic arms respectively form an interference fit with the cavity wall of the inner cavity of the handle. The plug structure is ingeniously and reasonably designed, which makes it easy to connect the plug and the bracket through bolts, and at the same time achieves an interference fit between the plug and the inner cavity wall of the handle, thereby ensuring the stability of the plug in the handle.

[0021] Compared with the prior art, the hot pressing sandwich machine of the embodiment of the present application has the following beneficial effects:

[0022] 1. The upper baking tray of the upper hot pressing assembly adopts a heat insulation groove design + the upper cover is in line contact and / or point contact with the upper baking tray, which greatly reduces heat transfer and ensures the outer surface temperature of the upper cover;

[0023] 2. The lower baking tray of the lower hot pressing assembly adopts a heat insulation groove design + the lower cover is in line contact and / or point contact with the lower baking tray, which greatly reduces heat transfer and ensures the outer surface temperature of the lower cover;

[0024] 3. Through the bottom cover design, the heat transfer to the bottom cover is reduced, the surface temperature of the bottom cover is lowered, and the scalding prevention is achieved;

[0025] 4. The plug design of the handle prevents the handle from directly contacting the metal bracket, reduces the surface temperature of the handle, and prevents scalding;

[0026] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application.

[0027] The overview of various implementations or examples of the technology described in this application is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In the drawings, which are not necessarily drawn to scale, the same reference numerals may describe similar components in different views. The drawings generally illustrate various embodiments by way of example and not limitation, and together with the specification and claims, serve to illustrate the claimed embodiments. Where appropriate, the same reference numerals are used throughout the drawings to refer to the same or similar parts.

[0029] Figure 1 This is a schematic three-dimensional structure diagram of the upper hot pressing component of the hot press sandwich machine in the closed state according to an embodiment of the present application.

[0030] Figure 2 This is a schematic three-dimensional structure diagram of one of the upper hot pressing components of the hot press sandwich machine in the open state according to an embodiment of the present application.

[0031] Figure 3 This is an exploded view of the partial structure of the hot press sandwich machine according to an embodiment of the present application.

[0032] Figure 4 This is a cross-sectional view of the hot press sandwich machine according to an embodiment of the present application.

[0033] Figure 5 This is a partial enlarged view of the upper and lower baking trays in linear contact with the upper and lower covers respectively according to an embodiment of the present application.

[0034] Figure 6 This is a partial enlarged view of the upper and lower baking trays in point contact with the upper and lower covers respectively according to an embodiment of the present application.

[0035] Figure 7 This is a three-dimensional structure view of the upper baking tray according to an embodiment of the present application.

[0036] Figure 8 This is a cross-sectional view of the handle and plug of the upper hot pressing component according to an embodiment of the present application.

[0037] Figure 9 This is a schematic structural diagram of the plug according to an embodiment of the present application.

[0038] Figure 10 This is a schematic diagram of the heat conduction generated by the heating tube in an embodiment of the present application, and the arrow direction in the figure indicates the heat conduction direction.

[0039] Reference numerals:

[0040] 1 - Lower hot pressing component; 11 - Lower cover; 111 - Upper convex edge; 12 - Lower baking tray; 121 - Lower heat insulation groove; 122 - Lower stop; 123 - Lower boss; 124 - Lower heating tube; 13 - Lower fixing seat;

[0041] 2 - Upper hot pressing component; 21 - Upper cover; 211 - Lower convex edge; 22 - Upper baking tray; 221 - Upper heat insulation groove; 222 - Upper stop; 223 - Upper boss; 224 - Upper heating tube; 23 - Upper fixing seat; 231 - First upper connection hole; 24 - Screw; 25 - Gap; 26 - Handle; 261 - Handle; 262 - Bracket; 263 - Plug; 2631 - End plate; 2632 - Elastic arm; 2633 - Hole part; 2634 - Through hole; 264 - Bolt;

[0042] 3 - Bottom cover assembly; 31 - Bottom cover; 32 - Control panel; 33 - Temperature control knob; 34 - Timer knob; 35 - Heating indicator light; 36 - Power indicator light. Detailed implementation

[0043] In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions of the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. Based on the described embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present application.

[0044] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the ordinary meanings understood by those of ordinary skill in the art to which the present application pertains. The "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before the term cover the elements or objects listed after the term and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0045] To keep the following description of the embodiments of the present application clear and concise, detailed descriptions of known functions and known components are omitted in the present application.

[0046] The embodiments of the present application provide a hot - press sandwich maker for making sandwiches by heating and pressing food ingredients. The hot - press sandwich maker includes a lower hot - press assembly 1 and an upper hot - press assembly 2. The upper hot - press assembly 2 is rotatably connected to the lower hot - press assembly 1, that is, the upper hot - press assembly 2 can rotate relative to the lower hot - press assembly 1, and the upper hot - press assembly 2 has a closed state where it engages with the lower hot - press assembly 1 (see Figure 1 ), and an open state where it is separated from the lower hot - press assembly 1 (see Figure 2 , Figure 2 which includes two sets of the upper hot - press assembly 2 and the lower hot - press assembly 1, where the upper hot - press assembly 2 in one set is in the open state and the upper hot - press assembly 2 in the other set is in the closed state). When the upper hot - press assembly 2 is in the closed state, the upper hot - press assembly 2 and the lower hot - press assembly 1 cooperate to hot - press the food ingredients sandwiched between them to make delicious sandwiches.

[0047] As shown in Figures 2 to 6As shown in the figure, the lower hot pressing assembly 1 includes a lower cover 11 and a lower baking tray 12 disposed on the lower cover 11. The lower baking tray 12 is located above the lower cover 11 and is in linear contact and / or point contact with the lower cover 11. An upper heat insulation groove 121 is provided on the side of the lower baking tray 12 facing the lower cover 11 near the periphery. The contact position between the lower cover 11 and the lower baking tray 12 is located outside the upper heat insulation groove 121. By providing the upper heat insulation groove 121 on the lower baking tray 12, and making the lower baking tray 12 form linear contact and / or point contact with the lower cover 11, and the contact position is located outside the upper heat insulation groove 121, the upper heat insulation groove 121 can be used to block the heat of the lower baking tray 12 from being transferred to the lower cover 11, and by greatly reducing the contact area between the lower cover 11 and the lower baking tray 12, the heat transfer is greatly reduced, ensuring that the temperature of the lower cover 11 does not rise, avoiding scalding users, and improving the use safety.

[0048] Continuing to combine Figures 2 to 6 , the upper hot pressing assembly 2 includes an upper cover 21 and an upper baking tray 22 disposed on the upper cover 21. The upper baking tray 22 is located below the upper cover 21. When the upper hot pressing assembly 2 is in the closed state, the upper baking tray 22 and the lower baking tray 12 are opposite and cooperate to hot press the food material sandwiched between the two to make a sandwich. An upper heat insulation groove 221 is provided on the side of the upper baking tray 22 facing the upper cover 21 near the periphery. The upper cover 21 and the upper baking tray 22 are in linear contact and / or point contact, and the contact position between the upper cover 21 and the upper baking tray 22 is located outside the upper heat insulation groove 221. By providing the upper heat insulation groove 221 on the upper baking tray 22, and making the upper baking tray 22 form linear contact and / or point contact with the upper cover 21, and the contact position is located outside the upper heat insulation groove 121, the upper heat insulation groove 221 can be used to block the heat of the upper baking tray 22 from being transferred to the upper cover 21, and by greatly reducing the contact area between the upper cover 21 and the upper baking tray 22, the heat transfer is greatly reduced, ensuring that the temperature of the upper cover 21 does not rise, avoiding scalding users, and improving the use safety.

[0049] In the hot press sandwich maker according to the embodiment of the present application, by respectively providing the upper heat insulation groove 121 and the lower heat insulation groove 221 on the lower baking tray 12 and the upper baking tray 22, and using the very low thermal conductivity and poor heat conduction performance of air to block the heat on the lower baking tray 12 and the upper baking tray 22 from being transferred to the lower cover 11 and the upper cover 21 respectively, and by reducing the contact area between the upper cover 21 and the upper baking tray 22, and the lower cover 11 and the lower baking tray 12, the heat conduction to the upper cover 21 and the lower cover 11 is reduced, effectively reducing the rise of the temperature of the upper cover 21 and the lower cover 11. On the premise of avoiding scalding users, the heat dissipation is also reduced, enabling the heat to be effectively conducted to the food material, improving the utilization rate of heat, and enhancing the taste of the made sandwich.

[0050] In some embodiments, such as Figure 4 and Figure 5As shown, the upper cover 21 has a structure with a closed top and an open bottom. The peripheral edge of the open bottom extends outward to form a downward convex edge 211. The outer peripheral edge of the upper baking tray 22 protrudes toward the upper cover 21 to form an upper retaining platform 222. The top surface of the upper retaining platform 222 is an inclined surface. The outer peripheral edge of the downward convex edge 211 abuts against the top surface of the upper retaining platform 222 and forms a linear contact with the top surface. The above structural design is reasonable, which is conducive to making the outer peripheral edge of the upper cover 21 and the upper baking tray 22 form a linear contact, greatly reducing heat transfer.

[0051] As Figure 3 and Figure 4 shown, the upper retaining platform 222 is actually the peripheral wall of the upper baking tray 22. The inclined surface of the top surface of the upper retaining platform 222 is gradually inclined downward from the outside to the inside of the upper retaining platform 222, see Figure 5 . In this way, the downward convex edge 211 abuts against this inclined surface and forms a linear contact.

[0052] In some embodiments, as Figure 7 shown, the middle part of the upper baking tray 22 arches upward toward the upper cover 21 to form an upper convex platform 223, and an upper heating tube 224 is provided on the upper convex platform 223. An annular upper heat insulation groove 221 surrounding the upper convex platform 223 is formed between the upper retaining platform 222 and the upper convex platform 223. As Figure 4 shown, the upper convex platform 223 of the upper baking tray 22 and the upper heating tube 224 thereon are not in contact with the upper cover 21 and have a relatively large spacing space. A plurality of upper fixing seats 23 are provided in the upper heat insulation groove 221. The upper fixing seats 23 are isolated from the upper convex platform 223, that is, the upper fixing seats 23 and the upper convex platform 223 are isolated by the upper heat insulation groove 221, so that the heat generated by the upper heating tube 224 on the upper convex platform 223 is blocked by the air in the upper heat insulation groove 221 and cannot be directly transferred to the upper fixing seats 23. Each upper fixing seat 23 is respectively provided with a first upper connection hole 231. The upper cover 21 is provided with second upper connection holes (not shown in the figure) corresponding to the first upper connection holes 231 one by one. The upper cover 21 is fixed and supported on the upper fixing seats 23 by screws 24 respectively passing through the corresponding first upper connection holes 231 and second upper connection holes. There is an upper heat insulation groove 221 between this fixing point and the upper heating tube 224 on the upper baking tray 22, reducing the heat transfer from the upper baking tray 22 to this fixing point.

[0053] The upper cover 21 and the upper retaining platform 222 can be close to each other but not in contact, so as to avoid the heat generated by the upper heating tube 224 being conducted to the upper cover 21 through the upper convex platform 223 and the upper retaining platform 222, see Figure 6 . In this way, a point contact is formed between the upper cover 21 and the upper baking tray 22, greatly reducing the contact area between the two and effectively reducing heat transfer.

[0054] Furthermore, as Figure 6As shown, the lower surface of the lower convex edge 211 is a plane; the top surface of the upper fixing base 23 is a plane, and the lower surface of the lower convex edge 211 is in contact with the top surface of the upper fixing base 23, so as to improve the stability of the upper fixing base 23 in supporting the upper cover 21. The edge of the lower convex edge 211 is close to the top surface of the upper retaining platform 222, and a gap 25 is formed between the lower convex edge 211 and the upper retaining platform 222 to avoid heat transfer.

[0055] In some embodiments, such as Figure 4 and Figure 5 As shown, the lower cover 11 has a structure with a closed bottom end and an open top end, and the peripheral edge of the open top end extends outward to form an upper convex edge 111. The outer peripheral edge of the lower baking tray 12 protrudes toward the lower cover 11 to form a lower retaining platform 122. The bottom end surface of the lower retaining platform 122 is an inclined surface, and the outer peripheral edge of the upper convex edge 111 abuts against the bottom end surface of the lower retaining platform 122 and forms a linear contact therewith. The above structural design is reasonable, which is conducive to forming a linear contact between the lower cover 11 and the lower baking tray 12, and greatly reducing heat transfer.

[0056] Such as Figure 3 and Figure 4 As shown, the lower retaining platform 122 is actually the peripheral wall of the lower baking tray 12. The inclined surface of the bottom end surface of the lower retaining platform 122 is formed by gradually inclining upward from the outside to the inside of the lower retaining platform 122. See Figure 5 . In this way, the outer peripheral edge of the upper convex edge 111 abuts against the inclined surface and forms a linear contact.

[0057] In some embodiments, such as Figure 4As shown in the figure, the middle part of the lower baking tray 12 bulges towards the lower cover 11 to form a lower convex platform 123, and a lower heating tube 124 is provided on the lower convex platform 123. An annular lower heat insulation groove 121 surrounding the upper convex platform 223 is formed between the lower stop platform 122 and the lower convex platform 123. The lower convex platform 123 of the lower baking tray 12 and the lower heating tube 124 thereon are not in contact with the lower cover 11 and have a relatively large spacing space. A plurality of lower fixing seats 13 are provided in the lower heat insulation groove 121, and the lower fixing seats 13 are isolated from the lower convex platform 123, that is, the lower fixing seats 13 and the lower convex platform 123 are isolated by the lower heat insulation groove 121, so that the heat generated by the lower heating tube 124 on the lower convex platform 123 is blocked by the air in the lower heat insulation groove 121 and cannot be directly transferred to the lower fixing seats 13. Each lower fixing seat 13 is respectively provided with a first lower connection hole (not shown in the figure). The lower cover 11 is provided with second lower connection holes (not shown in the figure) corresponding to the first lower connection holes one by one, and the lower cover 11 is fixed and supported on the lower fixing seats 13 by screws 24 respectively passing through the corresponding first lower connection holes and second lower connection holes. There is a lower heat insulation groove 121 between this fixing point and the lower heating tube 124 on the lower baking tray 12, reducing the heat transfer from the lower baking tray 12 to this fixing point. The lower cover 11 and the lower stop platform 122 can be close to each other but not in contact, avoiding the heat generated by the lower heating tube 124 being conducted to the lower cover 11 through the lower convex platform 123 and the lower stop platform 122, see Figure 6 . In this way, a point contact is formed between the lower cover 11 and the lower baking tray 12, greatly reducing the contact area between the two and effectively reducing heat transfer.

[0058] Furthermore, as Figure 6 shown, the upper surface of the upper convex edge 111 is a plane; the bottom surface of the lower fixing seat 13 is a plane, and the upper surface of the upper convex edge 111 is fitted with the bottom surface of the lower fixing seat 13, so that the stability of the support of the lower fixing seat 13 for the lower cover 11 can be improved. The edge of the upper convex edge 111 is close to the top end surface of the lower stop platform 122, and a gap 25 is formed between the upper convex edge 111 and the lower stop platform 122 to avoid heat transfer.

[0059] The number of the upper fixing seats 23 and the lower fixing seats 13 is not limited. On the premise of ensuring stability and minimizing the number of components as much as possible, four upper fixing seats 23 are provided on the upper baking tray 22 and four lower fixing seats 13 are provided on the lower baking tray 12 in the embodiment of the present application. When both the upper baking tray 22 and the lower baking tray 12 are square, the four upper fixing seats 23 and the four lower fixing seats 13 are respectively arranged close to the four corners of the upper baking tray 22 and the four corners of the lower baking tray 12. In addition, in order to further reduce heat transfer, both the upper fixing seats 23 and the lower fixing seats 13 can be made of materials with poor heat conduction performance.

[0060] When the upper cover 21 and the upper baking tray 22, and the lower cover 11 and the lower baking tray 12 are in linear contact, the upper cover 21 and the upper baking tray 22 can also be connected by using the upper fixing seat 23 and screws 24 at the same time, and the lower cover 11 and the lower baking tray 12 can also be connected by using the lower fixing seat 13 and screws 24 at the same time; that is, except at the upper fixing seat 23, the rest of the upper cover 21 and the upper baking tray 22 are in linear contact; except at the lower fixing seat 13, the rest of the lower cover 11 and the lower baking tray 12 are in linear contact. In this way, the upper cover 21 and the upper baking tray 22, and the lower cover 11 and the lower baking tray 12 of the hot press sandwich maker in the embodiment of the present application include pure point contact ( Figure 6 ) and point contact + linear contact ( Figure 5 ) two cases.

[0061] In some embodiments, as Figures 1 to 4 shown, the hot press sandwich maker further includes a bottom cover assembly 3, and the bottom cover assembly 3 includes a bottom cover 31 and an electric control component arranged in the bottom cover 31. The lower cover 11 is fixed on the top surface of the bottom cover 31, and the outer contour of the lower cover 11 is adapted to the outer contour of the upper cover 21 and is smaller than the outer contour of the top surface of the bottom cover 31; a control panel 32 is arranged on the front side surface of the bottom cover 31, and a knob and an indicator light are arranged on the control panel 32. The knobs include but are not limited to a temperature control knob 33 and a timer knob 34, and the indicator lights include but are not limited to a heating indicator light 35 and a power indicator light 36. Two temperature control knobs 33 and two timer knobs 34 are respectively arranged to control the temperatures of the upper baking tray 22 and the lower baking tray 12 respectively, and to time the working times of the upper baking tray 22 and the lower baking tray 12 respectively. Two heating indicator lights 35 can be arranged to indicate whether the upper baking tray 22 and the lower baking tray 12 are in a certain state respectively. Compared with the existing sandwich maker that directly sets the lower baking tray 12 on the bottom cover 31, the present application is equivalent to adding a lower cover 11 and setting the lower baking tray 12 on the lower cover 11, which is beneficial to reducing the surface temperature of the bottom cover 31. The bottom cover 31 is a part that is easy for users to contact relative to the lower cover 11, and the lower cover 11 is placed between the upper cover 21 and the bottom cover 31 and has a small volume and is not easy for users to contact. In this way, the possibility of users being scalded is avoided, and the use experience is improved.

[0062] The number of the lower hot pressing components 1 of the hot press sandwich maker in the embodiment of the present application is not limited, for example, it can be one or more. It can be understood that the lower hot pressing components 1 need to be used in cooperation with the upper hot pressing components 2. Therefore, the number of the upper hot pressing components 2 is the same as the number of the lower hot pressing components 1 and they are arranged in groups, that is, one lower hot pressing component 1 cooperates with one upper hot pressing component 2 to form a group. As Figure 1 and Figure 2As shown, in the embodiments of the present application, two lower hot pressing components 1 and two upper hot pressing components 2 form two groups, and two sandwiches can be made simultaneously, improving the production efficiency. The two lower hot pressing components 1 are arranged side by side on the top surface of the bottom cover 31. To simplify the structure, the lower covers 11 of the two lower hot pressing components 1 can be of an integral structure.

[0063] The shapes of the lower covers 11 and lower baking trays 12 of the lower hot pressing components 1 and the upper covers 21 and upper baking trays 22 of the upper hot pressing components 2 are not specifically limited. To make triangular or square sandwiches, the cross-sections of the lower covers 11, lower baking trays 12, upper covers 21, and upper baking trays 22 of the present application are all generally square. In addition, convex ribs can be provided between two of the diagonals of the lower baking tray 12 and the upper baking tray 22 to divide the square baking tray into triangles, so that a set of hot pressing components can make two triangular sandwiches simultaneously.

[0064] In some embodiments, as Figures 1 to 4 shown, the upper hot pressing component 2 further includes a handle 26, and the user can conveniently open or close the upper hot pressing component 2 through the handle 26, improving the convenience of use.

[0065] As Figure 8 shown, the handle 26 includes a handle body 261, brackets 262, and plugs 263. The handle body 261 is a rod-shaped structure and has a cavity penetrating through both ends in its axial direction; there are two plugs 263, which are respectively installed in the cavities at opposite ends of the handle body 261 in an interference fit manner; there are two brackets 262, which are respectively arranged on opposite sides of the upper cover 21, and the two brackets 262 are respectively connected to the plugs 263 inside both ends of the handle body 261. The plugs 263 are arranged in the cavities at both ends of the handle body 261 in an interference fit manner and are not easily disengaged from the handle body 261, with a stable and reliable structure; the brackets 262 of the handle 26 are indirectly in contact with the handle body 261 through the plugs 263, which can reduce the temperature of the handle body 261.

[0066] Furthermore, the plugs 263 can be made of a non-metallic material with poor thermal conductivity, so that the heat of the upper baking tray 22 is difficult to transfer to the handle body 261, and the surface temperature of the handle body 261 is still very low during the operation of the upper baking tray 22.

[0067] In some embodiments, as Figure 9 shown, the plug 263 includes an end plate 2631 and a tensioning portion provided on one side surface of the end plate 2631. The tensioning portion includes a plurality of elastic arms 2632. The plurality of elastic arms 2632 are arranged around the center of the disk surface and extend synchronously in a direction perpendicular to the disk surface, so that the plurality of elastic arms 2632 enclose a hole portion 2633. A through hole 2634 communicating with the hole portion 2633 is provided on the end plate 2631. As Figure 8As shown, the tensioning portion extends into the inner cavity of the handle 261, and the multiple elastic arms 2632 are simultaneously retracted toward the hole portion 2633 under the action of the cavity wall of the inner cavity, the end plate 2631 is exposed outside the handle 261 and abuts against the end surface of the handle 261, the bracket 262 is abutted against the end plate 2631, and is fixed to the end plate 2631 by bolts 264 that pass through the bracket 262, the end plate 2631 and the hole portion 2633 in sequence, and the bolt rod of the bolt 264 pushes the multiple elastic arms 2632 to open outward when passing through the hole portion 2633, so that the multiple elastic arms 2632 respectively form an interference fit with the cavity wall of the inner cavity. The structural design of the plug 263 is ingenious and reasonable, which makes it easy to connect the plug 263 and the bracket 262 through the bolt 264, and at the same time achieve an interference fit between the plug 263 and the inner cavity wall of the handle 261, ensuring the stability of the plug 263 in the handle 261 and preventing it from falling out.

[0068] When the hot pressing sandwich machine of the present application is working, Figure 10 As shown, the heat generated by the upper heating tube 224 and the lower heating tube 124 is evenly distributed in the middle heating parts of the upper baking tray 22 and the lower baking tray 12. Due to the existence of the upper insulation groove 221 and the lower insulation groove 121, the contact points between the heat transferred to the baking tray and the upper cover 21 and the lower cover 11 are reduced. Furthermore, due to the small contact area between the baking tray and the upper cover 21 and the lower cover 11, heat conduction is further reduced, ensuring that the surface temperature of the upper cover 21 and the lower cover 11 will not increase.

[0069] The hot press sandwich machine of the embodiment of the present application has a simple structure, reduces heat transfer to the upper cover 21 and the lower cover 11, reduces heat loss, achieves high thermal efficiency and fast baking speed, further realizes scalding prevention, and has low assembly difficulty, low cost, and is easy to implement.

[0070] The above description is intended to be illustrative rather than restrictive, and those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present disclosure. Moreover, the above examples (or one or more of them) may be used in combination with each other, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations.

Claims

1. A hot press sandwich maker, characterized in that, Comprising: A lower hot pressing assembly (1), which includes a lower cover (11) and a lower baking tray (12) provided on the lower cover (11). The lower baking tray (12) is located above the lower cover (11) and is in linear contact and / or point contact with the lower cover (11). A lower heat insulation groove (121) is provided on the side of the lower baking tray (12) facing the lower cover (11) near the periphery. The contact position between the lower cover (11) and the lower baking tray (12) is located outside the lower heat insulation groove (121); An upper hot pressing assembly (2), which includes an upper cover (21) and an upper baking tray (22) provided on the upper cover (21). The upper baking tray (22) is located below the upper cover (21) and is in linear contact and / or point contact with the upper baking tray (22). An upper heat insulation groove (221) is provided on the side of the upper baking tray (22) facing the upper cover (21) near the periphery. The contact position between the upper cover (21) and the upper baking tray (22) is located outside the upper heat insulation groove (221); wherein, The upper hot pressing assembly (2) is rotatably connected to the lower hot pressing assembly (1) and has a closed state in which it is buckled with the lower hot pressing assembly (1) and an open state in which it is separated from the lower hot pressing assembly (1). When the upper hot pressing assembly (2) is in the closed state, the upper baking tray (22) and the lower baking tray (12) cooperate to hot press the sandwich sandwiched between them.

2. The hot press sandwich machine according to claim 1, characterized in that, The upper cover (21) has a structure with a closed top and an open bottom. The periphery of the open bottom extends outward to form a lower convex edge (211); the outer periphery of the upper baking tray (22) protrudes toward the upper cover (21) to form an upper retaining platform (222). The top surface of the upper retaining platform (222) is an inclined surface. The outer periphery of the lower convex edge (211) abuts on the top surface of the upper retaining platform (222) and forms a linear contact with the top surface.

3. The hot press sandwich machine according to claim 1, characterized in that, The lower cover (11) has a structure with a closed bottom and an open top. The periphery of the open top extends outward to form an upper convex edge (111); the outer periphery of the lower baking tray (12) protrudes toward the lower cover (11) to form a lower retaining platform (122). The bottom surface of the lower retaining platform (122) is an inclined surface. The outer periphery of the upper convex edge (111) abuts on the bottom surface of the lower retaining platform (122) and forms a linear contact with the bottom surface.

4. The hot press sandwich machine according to claim 1, wherein The middle of the upper baking tray (22) arches toward the upper cover (21) to form an upper convex platform (223). An upper heating tube (224) is provided on the upper convex platform (223); a plurality of upper fixing seats (23) isolated from the upper convex platform (223) are provided in the upper heat insulation groove (221). Each upper fixing seat (23) is respectively provided with a first upper connecting hole (231); second upper connecting holes corresponding to the first upper connecting holes (231) one by one are provided on the upper cover (21). The upper cover (21) is fixed and supported on the upper fixing seat (23) by screws (24) respectively passing through the corresponding first upper connecting holes (231) and the second upper connecting holes.

5. The hot press sandwich machine according to claim 4, characterized in that, The upper cover (21) has a structure with a closed top and an open bottom. The periphery of the open bottom extends outward to form a downward convex edge (211), and the lower surface of the downward convex edge (211) is a plane; the top surface of the upper fixing seat (23) is a plane, and the lower surface of the downward convex edge (211) is in contact with the top surface of the upper fixing seat (23); The outer periphery of the upper baking tray (22) protrudes towards the upper cover (21) to form an upper retaining platform (222). The downward convex edge (211) is close to the upper retaining platform (222), and a gap (25) is formed between them.

6. The hot press sandwich machine according to claim 1, characterized in that, The middle part of the lower baking tray (12) arches towards the lower cover (11) to form a lower convex platform (123), and a lower heating tube (124) is provided on the lower convex platform (123); a plurality of lower fixing seats (13) isolated from the lower convex platform (123) are provided in the lower heat insulation groove (121), and each lower fixing seat (13) is respectively provided with a first lower connection hole; the lower cover (11) is provided with second lower connection holes corresponding to the first lower connection holes one by one, and the lower cover (11) is fixed and supported on the lower fixing seat (13) by screws (24) respectively passing through the corresponding first lower connection holes and the second lower connection holes.

7. The hot press sandwich machine according to claim 6, characterized in that, The lower cover (11) has a structure with a closed bottom and an open top. The periphery of the open top extends outward to form an upward convex edge (111), and the upper surface of the upward convex edge (111) is a plane; the bottom surface of the lower fixing seat (13) is a plane, and the upper surface of the upward convex edge (111) is in contact with the bottom surface of the lower fixing seat (13); The outer periphery of the lower baking tray (12) protrudes towards the lower cover (11) to form a lower retaining platform (122). The upward convex edge (111) is close to the lower retaining platform (122), and a gap (25) is formed between them.

8. The hot press sandwich machine according to claim 1, characterized in that, The hot press sandwich machine further includes a bottom cover assembly (3). The bottom cover assembly (3) includes a bottom cover (31) and an electronic control component provided in the bottom cover (31); the lower cover (11) is fixed on the top surface of the bottom cover (31), and the outer contour of the lower cover (11) is adapted to the outer contour of the upper cover (21) and is smaller than the outer contour of the top surface of the bottom cover (31); a control panel is provided on the front side of the bottom cover (31).

9. The hot press sandwich machine according to claim 1, characterized in that, The upper hot press assembly (2) further includes a handle (26). The handle (26) includes a handle (261), a bracket (262), and a plug (263). The handle (261) is a rod-shaped structure and has a cavity penetrating through both ends in its axial direction; there are two plugs (263), which are respectively installed in the cavities at opposite ends of the handle (261) in an interference fit manner. There are two brackets (262), which are respectively provided on opposite sides of the upper cover (21), and the two brackets (262) are respectively connected to the plugs (263) inside the two ends of the handle (261).

10. The hot press sandwich machine according to claim 9, characterized in that, The plug (263) includes an end plate (2631) and a tensioning portion provided on a disk surface of one side of the end plate (2631), the tensioning portion includes a plurality of elastic arms (2632), the plurality of elastic arms (2632) are arranged around the center of the end plate (2631), and extend synchronously in a direction perpendicular to the disk surface, so that the plurality of elastic arms (2632) surround a hole portion (2633), and the end plate (2631) is provided with a through hole (2634) connected to the hole portion (2633); the tensioning portion extends into the inner cavity at both ends of the handle (261), and the plurality of elastic arms (2632) are simultaneously extended toward the inner cavity under the action of the cavity wall of the inner cavity. The bracket (262) is abutted against the end plate (2631) and is fixed to the end plate (2631) by means of bolts (264) passing through the bracket (262), the end plate (2631) and the hole (2633) in sequence. When the bolt rod of the bolt (264) passes through the hole (2633), it pushes the multiple elastic arms (2632) to open outward, so that the multiple elastic arms (2632) respectively form an interference fit with the cavity wall of the inner cavity of the handle (261).

Images