A cold and hot cabinet with a cold and hot air duct switching mechanism

Abstract

The present invention discloses a cold and hot cabinet with a cold and hot air duct switching mechanism, which relates to the technical field of cold and hot cabinets, and solves the problem that the partition component fixes the cold and hot storage space in the display cabinet, making it impossible for users to adjust the size of the cold and hot storage space according to their needs, resulting in inflexible use of the cold and hot food display cabinet. The cold and hot cabinet includes a cold and hot cabinet body. A first blower is fixedly installed in the lower cavity of the cold and hot cabinet body. A second blower is fixedly installed in the upper cavity of the cold and hot cabinet body. An electric heating tube is fixedly installed corresponding to the inside of the cold and hot cabinet body on the front side of the second blower. A wind cavity is arranged at the rear side of the storage area of the cold and hot cabinet body. By installing a switching mechanism, the first baffle in the switching mechanism can arbitrarily partition the wind cavity in the cold and hot cabinet body, facilitating users to arbitrarily adjust the sizes of the refrigerated area and the insulation area in the cold and hot cabinet according to their needs, making the space utilization of the cold and hot cabinet relatively flexible.

Description

Technical Field

[0001] The present invention relates to the technical field of cold and hot cabinets, and particularly to a cold and hot cabinet with a cold and hot air duct switching mechanism. Background Art

[0002] A cold and hot cabinet is a device that can display refrigerated foods or foods that need to be kept warm in the same cabinet body. The cold and hot cabinet divides two different temperature spaces inside the cabinet body, effectively improving the practicability of the food display cabinet.

[0003] An existing cold and hot cabinet for cold and hot foods on the market, through a back upper component composed of a hinge inward-turning opening and closing structure arranged on the back of the inner cavity partition of the cabinet body and a corresponding back middle component, can not only realize the flexible insertion of the air duct partition component, divide the main air duct of the display cabinet into two ideal cold and hot storage areas, but also ensure that after the entire cold and hot air duct switching device is timely withdrawn, the cold air in the main air duct will not leak from the device installation area to the cabinet internal space; at the same time, it also provides technical support for arbitrarily adjusting the cold and hot spaces inside the display cabinet cavity. However, during the use of this display cabinet, since the position of the partition component inside the display cabinet is fixed and only the insertion and extraction actions can be realized, this will cause the cold and hot storage spaces inside the display cabinet to be fixed by the partition component, making it impossible for the user to adjust the size of the cold and hot storage spaces according to needs, resulting in inflexible use of this cold and hot food display cabinet. Summary of the Invention

[0004] The purpose of the present invention is to provide a cold and hot cabinet with a cold and hot air duct switching mechanism to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A cold and hot cabinet with a cold and hot air duct switching mechanism includes a cold and hot cabinet body. A first blower is fixedly installed in the lower cavity of the cold and hot cabinet body, and a second blower is fixedly installed in the upper cavity of the cold and hot cabinet body. An electric heating tube is fixedly installed in front of the second blower corresponding to the inside of the cold and hot cabinet body. A wind cavity is arranged at the rear of the storage area of the cold and hot cabinet body. The cold and hot cabinet also includes a partition shelf for separating the space of the storage area inside the cold and hot cabinet body, and the partition shelf is installed in the storage area of the cold and hot cabinet body; a switching mechanism for switching the cold and hot storage spaces of the storage area of the cold and hot cabinet body, and the switching mechanism is installed inside the wind cavity; a blocking component for separating the cold and hot storage spaces inside the cold and hot cabinet body, and the blocking component is installed inside the partition shelf; a driving component for driving the blocking component to move, and the driving component is installed between the switching mechanism and the blocking component.

[0007] Preferably, the number of the partition racks is multiple groups. The partition rack includes a support seat fixedly connected to the main body of the cold and hot cabinet. A hollow seat is fixedly arranged at the center of the support seat. Two symmetrically distributed partition boards are movably embedded at the upper end of the support seat. Two symmetrically distributed support angle brackets are fixedly installed at the lower end of the hollow seat, and the connection mode between the support angle bracket and the main body of the cold and hot cabinet is fixed connection.

[0008] Preferably, the switching mechanism includes a first baffle that can move up and down in the air cavity. A threaded rod is fitted at the center of the first baffle, and the threaded rod is rotatably connected to the main body of the cold and hot cabinet through a bearing. A servo motor is fixedly connected to the lower end of the threaded rod, and the servo motor is fixedly connected to the main body of the cold and hot cabinet. Optical axes penetrate through both ends of the first baffle, and the optical axes are fixedly connected to the main body of the cold and hot cabinet.

[0009] Preferably, the number of the blocking components in the partition rack is two groups and they are symmetrically distributed. The blocking component includes two second baffles that are inserted and pulled out with the support seat, and the two second baffles are symmetrically distributed. Two symmetrically distributed inclined pull rods are installed between the two second baffles, and the inclined pull rods are located inside the hollow seat. The inclined pull rods are movably hinged to the second baffle through a first hinge seat, and the two inclined pull rods are hinged to a second hinge seat at one end close to each other.

[0010] Preferably, two symmetrically distributed pin rods are fixedly installed on one side of the two second baffles close to each other. A first gasket is fixedly connected to the end of the pin rod away from the second baffle. A socket seat is movably sleeved on the outer side of the pin rod, and the socket seat is fixedly connected to the support seat. A first spring is movably sleeved on the outer side of the pin rod, and both ends of the first spring are movably abutted against the first gasket and the socket seat respectively.

[0011] Preferably, the driving component includes a first triangular driving block installed on the upper side of the second hinge seat. A roller is rotatably installed at the center of the upper end of the second hinge seat, and the connection mode between the roller and the first triangular driving block is rolling contact. A spline rod is fixedly embedded at the rear end of the first triangular driving block, and the spline rod penetrates through the side walls of the hollow seat and the main body of the cold and hot cabinet. A support sleeve is movably sleeved on the outer side of the spline rod, and the support sleeve is fixedly connected to the hollow seat through two symmetrically distributed support rods.

[0012] Preferably, a washer is fixedly sleeved on the outer side of the spline rod. A second spring is also movably sleeved on the outer side of the spline rod, and two ends of the second spring are respectively in movable abutment with the support sleeve and the washer. A ball is movably embedded at one end of the spline rod away from the first triangular driving block. A second triangular driving block is fixedly embedded at the center of the front side of the first baffle, and the connection mode between the ball and the second triangular driving block is rolling contact.

[0013] Preferably, a plurality of through grooves are provided at equal intervals at both the upper and lower ends of the hollow seat. A grille plate capable of moving back and forth is movably installed inside the hollow seat corresponding to the upper side of the first triangular driving block, and the open portions on the grille plate coincide with the plurality of through grooves.

[0014] Preferably, two symmetrically distributed third springs are fixedly installed at the front end of the grille plate, and the ends of the third springs away from the grille plate are fixedly connected to the hollow seat. A stop rod is fixedly installed at the lower end of the grille plate. A driving groove is provided at the upper end of the first triangular driving block, and the first triangular driving block is in movable abutment with the stop rod through the driving groove.

[0015] Preferably, an indicator light is fixedly embedded at the upper end of the hollow seat. A switch assembly is installed inside the hollow seat corresponding to the upper side of the spline rod. The switch assembly includes a switch box fixedly installed inside the hollow seat. A key rod is movably embedded at the rear end of the switch box. One end of the key rod away from the switch box is fixedly connected to a second gasket. A fourth spring is movably sleeved on the outer side of the switch box, and two ends of the fourth spring are respectively in movable abutment with the switch box and the second gasket. A pressing block is fixedly installed on the spline rod corresponding to the rear side of the second gasket, and the connection mode between the pressing block and the second gasket is movable abutment.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. By installing a switching mechanism, the first baffle in the switching mechanism can move up and down under the drive of the threaded rod to arbitrarily partition the air cavity in the cold and hot cabinet body, so that the space above the first baffle in the air cavity can be switched from the refrigerating area to the heat preservation area, thereby facilitating the user to arbitrarily adjust the sizes of the refrigerating area and the heat preservation area in the cold and hot cabinet according to needs, and making the space utilization of the cold and hot cabinet more flexible.

[0018] 2. By installing a blocking component, a driving component, and a grille plate, the switching mechanism can drive two second baffles in the blocking component to block the front and rear ends of the partition through the driving component, and drive the grille plate to move so that the solid part of the grille plate blocks the through groove on the hollow seat, which can reduce the mutual influence between the cold and hot circulating air in the cold and hot cabinet body, thereby improving the refrigeration and heating effects in the cold and hot cabinet body.

[0019] 3. By installing an indicator light and a switch component, after the partition in the switching mechanism reaches the rear side of the specified shelf, the switching mechanism can control the indicator light on that shelf to be constantly on through the driving mechanism, thus facilitating the user to know the separation position between the refrigeration area and the heat preservation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 is a schematic cross-sectional view of the side of the cold and hot cabinet body of the present invention;

[0022] Figure 3 is a schematic diagram of the switching mechanism and a single shelf structure of the present invention;

[0023] Figure 4 is of the present invention Figure 3 an enlarged exploded view of part A in;

[0024] Figure 5 is a schematic cross-sectional view of the side of the shelf of the present invention;

[0025] Figure 6 is a schematic diagram of the split state of the shelf of the present invention;

[0026] Figure 7 is a schematic cross-sectional view of the shelf horizontally cut and split from the blocking component of the present invention;

[0027] Figure 8 is a schematic diagram of the split structure of the driving component and the blocking component of the present invention;

[0028] Figure 9 is a schematic diagram of the driving component structure of the present invention.

[0029] In the figure: 1, the main body of the cold and hot cabinet; 2, the first blower; 3, the second blower; 4, the electric heating tube; 5, the air cavity; 6, the support seat; 7, the hollow seat; 8, the partition board; 9, the support angle bracket; 10, the first baffle; 11, the threaded rod; 12, the servo motor; 13, the optical axis; 14, the second baffle; 15, the inclined tie rod; 16, the first hinge seat; 17, the second hinge seat; 18, the pin rod; 19, the first gasket; 20, the socket seat; 21, the first spring; 22, the first triangular drive block; 23, the roller; 24, the spline rod; 25, the support sleeve; 26, the support rod; 27, the washer; 28, the second spring; 29, the ball; 30, the second triangular drive block; 31, the through groove; 32, the grille board; 33, the third spring; 34, the stop rod; 35, the drive groove; 36, the indicator light; 37, the switch box; 38, the key rod; 39, the second gasket; 40, the fourth spring; 41, the pressing block. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment 1: Please refer to Figures 1-3 , a cold and hot cabinet with a cold and hot air duct switching mechanism in the figure, including the main body 1 of the cold and hot cabinet. The first blower 2 is fixedly installed in the lower cavity of the main body 1 of the cold and hot cabinet. The first blower 2 blows cold air to make the cold air circulate in the main body 1 of the cold and hot cabinet. The second blower 3 is fixedly installed in the upper cavity of the main body 1 of the cold and hot cabinet. The electric heating tube 4 is fixedly installed corresponding to the inside of the main body 1 of the cold and hot cabinet on the front side of the second blower 3. The second blower 3 is used to blow the heat generated by the electric heating tube 4 to make the hot air circulate in the main body 1 of the cold and hot cabinet. An air cavity 5 is arranged at the rear side of the storage area of the main body 1 of the cold and hot cabinet. It also includes a partition shelf; used to separate the space in the storage area inside the main body 1 of the cold and hot cabinet, and the partition shelf is installed in the storage area of the main body 1 of the cold and hot cabinet.

[0032] The number of partition shelves is multiple groups. The partition shelf includes a support seat 6 fixedly connected to the main body 1 of the cold and hot cabinet. A hollow seat 7 is fixedly arranged at the center of the support seat 6. Two symmetrically distributed partition boards 8 are movably embedded at the upper end of the support seat 6. The support seat 6 is used to place the partition boards 8. The partition boards 8 are used to place food. The partition boards 8 are made of vacuum insulation boards. Two symmetrically distributed support angle brackets 9 are fixedly installed at the lower end of the hollow seat 7, and the connection method between the support angle brackets 9 and the main body 1 of the cold and hot cabinet is a fixed connection. The support angle brackets 9 are used to enhance the stability of the support seat 6.

[0033] A switching mechanism is used to switch the cold and hot storage spaces in the storage area of the cold and hot cabinet body 1. The switching mechanism is installed inside the air cavity 5. The switching mechanism includes a first baffle 10 that can move up and down in the air cavity 5. A threaded rod 11 is fitted at the center of the first baffle 10, and the threaded rod 11 is rotatably connected to the cold and hot cabinet body 1 through a bearing. A servo motor 12 is fixedly connected to the lower end of the threaded rod 11, and the servo motor 12 is fixedly connected to the cold and hot cabinet body 1. The servo motor 12 can drive the first baffle 10 to move up and down in the air cavity 5 through the threaded rod 11. The first baffle 10 is made of a common heat-insulating board. Light shafts 13 penetrate through both ends of the first baffle 10, and the light shafts 13 are fixedly connected to the cold and hot cabinet body 1. The light shafts 13 are used to limit the first baffle 10.

[0034] Embodiment 2: Please refer to Figures 3-7 , this embodiment further describes Embodiment 1. A blocking component is used to separate the cold and hot storage spaces inside the cold and hot cabinet body 1. The blocking component is installed inside the shelf. The number of blocking components in the shelf is two groups and they are symmetrically distributed. The blocking component includes two second baffles 14 that are inserted and connected to the support seat 6. The two second baffles 14 are symmetrically distributed. The mutually remote ends of the second baffles 14 can respectively abut against the rear side wall and the cabinet door of the cold and hot cabinet body 1 in a movable manner. Two symmetrically distributed inclined tie rods 15 are installed between the two second baffles 14, and the inclined tie rods 15 are located inside the hollow seat 7. The inclined tie rods 15 are movably hinged to the second baffles 14 through the first hinge seats 16. The mutually close ends of the two inclined tie rods 15 are hinged with a second hinge seat 17.

[0035] Two symmetrically distributed pin rods 18 are fixedly installed on the mutually close sides of the two second baffles 14. One end of the pin rod 18 remote from the second baffle 14 is fixedly connected with a first gasket 19. A socket seat 20 is movably sleeved on the outer side of the pin rod 18, and the socket seat 20 is fixedly connected to the support seat 6. A first spring 21 is movably sleeved on the outer side of the pin rod 18, and the two ends of the first spring 21 respectively abut against the first gasket 19 and the socket seat 20 in a movable manner. The first spring 21 can drive the second baffle 14 to move through the pin rod 18, the first gasket 19 and the socket seat 20.

[0036] The driving component is used to drive the blocking component to move. The driving component is installed between the switching mechanism and the blocking component. The driving component includes a first triangular driving block 22 installed on the upper side of the second hinge base 17. A roller 23 is rotatably installed at the center of the upper end of the second hinge base 17, and the connection between the roller 23 and the first triangular driving block 22 is a rolling contact. The first triangular driving block 22 can drive the two second baffle plates 14 to move away from each other through the roller 23, the second hinge base 17, the inclined tie rod 15, and the first hinge base 16. A spline rod 24 is fixedly embedded at the rear end of the first triangular driving block 22, and the spline rod 24 penetrates through the side walls of the hollow seat 7 and the cold and hot cabinet body 1. A support sleeve 25 is movably sleeved on the outer side of the spline rod 24, and the support sleeve 25 is fixedly connected to the hollow seat 7 through two symmetrically distributed support rods 26.

[0037] A washer 27 is fixedly sleeved on the outer side of the spline rod 24. A second spring 28 is also movably sleeved on the outer side of the spline rod 24, and the two ends of the second spring 28 are respectively in movable abutment with the support sleeve 25 and the washer 27. The second spring 28 can drive the first triangular driving block 22 to move backward through the washer 27 and the support sleeve 25. A ball 29 is movably embedded at the end of the spline rod 24 away from the first triangular driving block 22. A second triangular driving block 30 is fixedly embedded at the center of the front side of the first baffle plate 10, and the connection between the ball 29 and the second triangular driving block 30 is a rolling contact. The second triangular driving block 30 can drive the spline rod 24 and the first triangular driving block 22 to move forward through the ball 29.

[0038] A plurality of equally spaced through slots 31 are opened at both the upper and lower ends of the hollow seat 7. A grille plate 32 that can move back and forth is movably installed inside the hollow seat 7 corresponding to the upper side of the first triangular driving block 22, and the open areas on the grille plate 32 coincide with the plurality of through slots 31. The through slots 31 facilitate the flow of gas inside the hollow seat 7.

[0039] Two symmetrically distributed third springs 33 are fixedly installed at the front end of the grille plate 32, and the ends of the third springs 33 away from the grille plate 32 are fixedly connected to the hollow seat 7. The third springs 33 can drive the grille plate 32 to move backward through the hollow seat 7. A stop rod 34 is fixedly installed at the lower end of the grille plate 32. A driving groove 35 is opened at the upper end of the first triangular driving block 22, and the first triangular driving block 22 is in movable abutment with the stop rod 34 through the driving groove 35. The first triangular driving block 22 can drive the grille plate 32 to move forward through the driving groove 35 and the stop rod 34.

[0040] Embodiment Three: Please refer to Figure 8 、 Figure 9, this embodiment further elaborates on the first embodiment. An indicator light 36 is fixedly embedded at the upper end of the hollow seat 7. A switch assembly is installed inside the hollow seat 7 corresponding to the upper side of the spline rod 24. The switch assembly includes a switch box 37 fixedly installed inside the hollow seat 7. The connection between the indicator light 36 and the switch box 37 is an electrical connection. A key rod 38 is movably embedded at the rear end of the switch box 37. A second gasket 39 is fixedly connected to the end of the key rod 38 away from the switch box 37. A fourth spring 40 is movably sleeved outside the switch box 37, and the two ends of the fourth spring 40 are respectively in movable abutment with the switch box 37 and the second gasket 39. The fourth spring 40 can drive the key rod 38 to move backward through the second gasket 39. A pressing block 41 is fixedly installed on the spline rod 24 corresponding to the rear side of the second gasket 39, and the connection between the pressing block 41 and the second gasket 39 is in movable abutment. The spline rod 24 can drive the key rod 38 to move forward through the pressing block 41.

[0041] Working principle: During the use of the cold and hot cabinet body 1, when the first fan 2 runs and the second fan 3 and the electric heating tube 4 stop running, only cold air circulates inside the cold and hot cabinet body 1, and the cold and hot cabinet body 1 can only refrigerate food. After the servo motor 12 drives the threaded rod 11 to rotate and the first baffle 10 moves into the air cavity 5, the air cavity 5 is divided into two parts. At this time, the first fan 2, the second fan 3, and the electric heating tube 4 are all in the running state. At this time, the area of the air cavity 5 above the first baffle 10 is switched to a hot air channel, and cold air and hot air circulate inside the cold and hot cabinet body 1, so that the cold and hot cabinet body 1 can not only store food at a low temperature but also keep hot food warm. Since the threaded rod 11 can drive the first baffle 10 to move arbitrarily inside the air cavity 5, personnel can adjust the sizes of the heat preservation space and the refrigeration space inside the cold and hot cabinet body 1 according to their needs, effectively improving the flexibility of the use of the cold and hot cabinet body 1.

[0042] During the process of moving the first baffle 10 to the rear side of the designated shelf according to requirements, the first baffle 10 will drive the spline rod 24 and the first triangular driving block 22 to move forward through the second triangular driving block 30. During the forward movement of the first triangular driving block 22, the first triangular driving block 22 will drive two second hinge seats 17 away from each other through the hypotenuse. During this process, the two second baffles 14 in each blocking assembly will move away from each other until they are respectively in active contact with the rear side wall of the cold and hot cabinet body 1 and the cabinet door. At the same time, during the forward movement of the first triangular driving block 22, the first triangular driving block 22 drives the stop rod 34 and the grille plate 32 to move backward through the driving groove 35, so that the solid part of the grille plate 32 blocks the through groove 31 on the hollow seat 7. The cooperation of the shelf with the blocking assembly and the grille plate 32 can divide the cold and hot spaces in the cold and hot cabinet body 1 (since the cabinet door is a push-pull type cabinet door, the second baffle 14 will not be in contact with both cabinet doors at the same time, and there will be a gap between the second baffle 14 and the outer cabinet door. However, compared with the gap between the support seat 6 and the cabinet door, the area of this gap is much smaller than the gap between the support seat 6 and the cabinet door. Therefore, to a certain extent, it can reduce the mutual influence between the cold and hot circulating air in the cold and hot cabinet body 1), thereby improving the refrigeration and heating effects in the cold and hot cabinet body 1. After the second triangular driving block 30 disengages from the spline rod 24, the second baffle 14, the first triangular driving block 22, and the grille plate 32 return to their original positions under the driving of the compression elastic forces of the first spring 21, the second spring 28, and the third spring 33 respectively.

[0043] During the process of the second triangular driving block 30 driving the spline rod 24 to move, the spline rod 24 drives the key rod 38 to move towards the switch box 37 through the pressing block 41, so that the moving contact on the key rod 38 contacts the static contact in the switch box 37. At this time, the indicator light 36 on the shelf corresponding to the spline rod 24 will be energized and always on, which can prompt the user of the separation position between the refrigeration area and the heat preservation area. When the spline rod 24 returns to its original position under the driving of the compression elastic force of the second spring 28, the key rod 38 will return to its original position under the driving of the compression elastic force of the fourth spring 40, so that the moving contact disengages from the static contact, thereby turning off the indicator light 36 on the shelf.

[0044] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold and hot cabinet with a cold and hot air duct switching mechanism, comprising a cold and hot cabinet body (1), a first fan (2) installed in a lower cavity of the cold and hot cabinet body (1), a second fan (3) installed in an upper cavity of the cold and hot cabinet body (1), an electric heating pipe (4) installed in front of the second fan (3), and an air cavity (5) arranged at the rear side of a storage area of ​​the cold and hot cabinet body (1), characterized in that: Also includes: A partition frame; used to separate the space of the internal storage area of ​​the cold and hot cabinet body (1), and the partition frame is installed in the storage area of ​​the cold and hot cabinet body (1); A switching mechanism, used for switching between hot and cold storage spaces in the storage area of ​​the cold and hot cabinet body (1), the switching mechanism being installed on the inner side of the air cavity (5); A blocking component, used for separating the hot and cold storage spaces inside the cold and hot cabinet body (1), the blocking component being installed inside the partition frame; A driving assembly, used for driving the blocking assembly to move, wherein the driving assembly is installed between the switching mechanism and the blocking assembly; The first baffle in the switching mechanism can move up and down under the drive of the threaded rod to arbitrarily divide the air cavity in the cold and hot cabinet body, and can drive the two second baffles in the blocking assembly through the driving assembly to block the front and rear ends of the partition of the partition frame.

2. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 1, characterized in that: The number of the partition frames is multiple groups, and the partition frames include a support seat (6), a hollow seat (7) is arranged on the support seat (6), two partition plates (8) are embedded at the upper end of the support seat (6), and two supporting angle frames (9) are installed at the lower end of the hollow seat (7).

3. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 2, characterized in that: The switching mechanism comprises a first baffle (10), a threaded rod (11) being mounted on the first baffle (10), a servo motor (12) being connected to the lower end of the threaded rod (11), and an optical axis (13) passing through the first baffle (10).

4. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 3, characterized in that: The blocking components in the partition frame are in two groups and are symmetrically distributed. The blocking components include two second baffles (14). Two inclined tie rods (15) are installed between the two second baffles (14). The inclined tie rods (15) are movably hinged to the second baffles (14) via a first hinge seat (16). One end of the two inclined tie rods (15) is hinged to a second hinge seat (17).

5. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 4, characterized in that: Two pins (18) are installed on one side of each of the two second baffles (14); one end of the pin (18) is connected to a first gasket (19); a socket seat (20) is sleeved on the outer side of the pin (18); and a first spring (21) is sleeved on the outer side of the pin (18).

6. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 4, characterized in that: The driving assembly comprises a triangular driving block (22); a roller (23) is mounted on the upper end of the second hinge seat (17); the roller (23) and the triangular driving block (22) are connected in a rolling contact manner; a spline rod (24) is embedded at the rear end of the triangular driving block (22); a support sleeve (25) is sleeved on the outer side of the spline rod (24); and the support sleeve (25) is connected to the hollow seat (7) via two support rods (26).

7. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 6, characterized in that: A washer (27) is sleeved on the outer side of the spline rod (24), and a second spring (28) is also sleeved on the outer side of the spline rod (24). A ball (29) is embedded at one end of the spline rod (24), and a triangular drive block 2 (30) is embedded on the front side of the first baffle (10), and the connection between the ball (29) and the triangular drive block 2 (30) is rolling contact.

8. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 6, characterized in that: A plurality of through slots (31) are provided at both upper and lower ends of the hollow seat (7), a grid plate (32) is installed inside the hollow seat (7), and the openings on the grid plate (32) overlap with the plurality of through slots (31).

9. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 8, characterized in that: Two third springs (33) are installed at the front end of the grid plate (32), a blocking rod (34) is installed at the lower end of the grid plate (32), a driving groove (35) is opened at the upper end of the triangular driving block (22), and the triangular driving block (22) is movably abutted against the blocking rod (34) through the driving groove (35).

10. A cold and hot cabinet with a cold and hot air duct switching mechanism according to claim 6, characterized in that: An indicator light (36) is embedded at the upper end of the hollow seat (7), a switch assembly is installed inside the hollow seat (7), and the switch assembly comprises a switch box (37), a button rod (38) is embedded at the rear end of the switch box (37), one end of the button rod (38) is connected to a second gasket (39), a fourth spring (40) is sleeved on the outer side of the switch box (37), and a pressing block (41) is installed on the spline rod (24) corresponding to the rear side of the second gasket (39).

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