Cold and hot cabinet with cold and hot air duct switching mechanism

Abstract

The invention discloses a cold and hot cabinet with a cold and hot air duct switching mechanism, relates to the technical field of cold and hot cabinets, and solves the problem that a cold and hot storage space in a display cabinet is fixed by an interlayer assembly, so that a user cannot adjust the size of the cold and hot storage space as required, and the display cabinet for cold and hot food is not flexible enough to use. Comprising a cold and hot cabinet body, a first fan is fixedly installed in a lower side cavity of the cold and hot cabinet body, a second fan is fixedly installed in an upper side cavity of the cold and hot cabinet body, an electric heating pipe is fixedly installed on the front side of the second fan and corresponds to the interior of the cold and hot cabinet body, and an air cavity is formed in the rear side of a storage area of the cold and hot cabinet body; by installing the switching mechanism, the first baffle in the switching mechanism can randomly separate the air cavity in the cold and hot cabinet body, so that a user can randomly adjust the sizes of the cold storage area and the heat preservation area in the cold and hot cabinet according to requirements, and the space utilization of the cold and hot cabinet is relatively flexible.

Description

Technical Field

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

[0002] Hot and cold cabinets are devices that can display refrigerated food or food that needs to be kept warm in the same cabinet. Hot and cold cabinets divide the interior of the cabinet into two different temperature spaces, effectively improving the practicality of the food display cabinet.

[0003] There is a kind of hot and cold food cabinet currently available on the market. The upper back component composed of a hinged inward opening and closing structure and the middle back component matched with it are arranged on the back of the inner cavity partition of the cabinet body. Not only can the air duct interlayer component be flexibly inserted to separate the main air duct of the display cabinet into two ideal hot and cold storage areas, but also after the entire hot and cold duct switching device is pulled out in time, the cold air of the main air duct will not leak from the device installation area to the space inside the cabinet. At the same time, it also provides technical support for the free adjustment of the hot and cold space in the inner cavity of the display cabinet. However, during the use of the display cabinet, since the position of the interlayer component inside the display cabinet is fixed, only the pulling and inserting actions can be realized. This will cause the interlayer component to fix the hot and cold storage space in the display cabinet, making it impossible for the user to adjust the size of the hot and cold storage space as needed, resulting in the display cabinet for hot and cold foods not being flexible enough. Summary of the invention

[0004] The object 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 technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A hot and cold cabinet with a hot and cold air duct switching mechanism comprises a hot and cold cabinet body, a first fan is fixedly installed in the lower cavity of the hot and cold cabinet body, a second fan is fixedly installed in the upper cavity of the hot and cold cabinet body, an electric heating tube is fixedly installed on the front side of the second fan corresponding to the interior of the hot and cold cabinet body, an air cavity is arranged on the rear side of the storage area of ​​the hot and cold cabinet body, and further comprises a partition frame; a space for separating the storage area inside the hot and cold cabinet body, the partition frame is installed in the storage area of ​​the hot and cold cabinet body; a switching mechanism for switching the hot and cold storage space in the storage area of ​​the hot and cold cabinet body, the switching structure is installed on the inner side of the air cavity; a blocking component for separating the hot and cold storage space inside the hot and cold cabinet body, the blocking component is installed inside the partition frame; a driving component for driving the blocking component to move, the driving component is installed between the switching mechanism and the blocking component.

[0006] Preferably, the number of the partitions is multiple groups, and the partitions include a support seat fixedly connected to the cold and hot cabinet body, a hollow seat is fixedly arranged at the center of the support seat, two symmetrically distributed partitions are movably embedded in the upper end of the support seat, and two symmetrically distributed supporting angle brackets are fixedly installed at the lower end of the hollow seat, and the connection between the supporting angle brackets and the cold and hot cabinet body is a fixed connection.

[0007] Preferably, the switching mechanism includes a first baffle that can move up and down in the air cavity, a threaded rod is cooperatively installed at the center of the first baffle, and the threaded rod is rotatably connected to the cold and hot cabinet body 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 cold and hot cabinet body, an optical axis passes through the first baffle near both ends, and the optical axis is fixedly connected to the cold and hot cabinet body.

[0008] Preferably, there are two groups of blocking components in the partition frame, and they are symmetrically distributed. The blocking components include two second baffles that are plugged and unplugged with the support seat, and the two second baffles are symmetrically distributed. Two symmetrically distributed inclined rods are installed between the two second baffles, and the inclined rods are located inside the hollow seat. The inclined rods are movably hinged to the second baffles through a first hinge seat, and the two inclined rods are hinged to each other at one end with a second hinge seat.

[0009] Preferably, two symmetrically distributed pins are fixedly installed on the sides of the two second baffles that are close to each other, and the end of the pin away from the second baffle is fixedly connected to the first gasket, the outer side of the pin is movably sleeved with a socket, and the socket is fixedly connected to the support seat, the outer side of the pin is movably sleeved with a first spring, and the two ends of the first spring are respectively movably abutted against the first gasket and the socket.

[0010] Preferably, the driving assembly includes a triangular driving block 1 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 between the roller and the triangular driving block 1 is rolling contact, a spline rod is fixedly embedded at the rear end of the triangular driving block 1, and the spline rod passes through the hollow seat and the side walls of the hot and cold cabinet body, 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.

[0011] Preferably, a washer is fixedly sleeved on the outer side of the spline rod, and a second spring is also movably sleeved on the outer side of the spline rod, and the two ends of the second spring are movably abutted against the support sleeve and the washer respectively, a ball is movably embedded in the end of the spline rod away from the triangular drive block one, and a triangular drive block two is fixedly embedded at the front center of the first baffle, and the connection between the ball and the triangular drive block two is rolling contact.

[0012] Preferably, a plurality of through slots equidistantly distributed are provided at both upper and lower ends of the hollow seat, a grille plate that can move forward and backward is movably installed inside the hollow seat corresponding to the upper side of the triangular driving block 1, and the opening on the grille plate coincides with the plurality of through slots.

[0013] Preferably, two symmetrically distributed third springs are fixedly mounted on the front end of the grille plate, and one end of the third spring away from the grille plate is fixedly connected to the hollow seat, a baffle rod is fixedly mounted on the lower end of the grille plate, a driving groove is provided on the upper end of the triangular driving block 1, and the triangular driving block 1 is movably abutted against the baffle rod through the driving groove.

[0014] Preferably, an indicator light is fixedly embedded in 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 button rod is movably embedded in the rear end of the switch box, a second gasket is fixedly connected to one end of the button rod away from the switch box, a fourth spring is movably sleeved on the outer side of the switch box, and two ends of the fourth spring are movably abutted against the switch box and the second gasket respectively, a pressing block is fixedly installed on the spline rod corresponding to the rear side of the second gasket, and the pressing block and the second gasket are connected in a movably abutting manner.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention installs a switching mechanism, and the first baffle in the switching mechanism can move up and down under the drive of the threaded rod, so as to arbitrarily divide the air cavity in the cold and hot cabinet body, so that the space located on the upper side of the first baffle in the air cavity can be switched from the refrigeration area to the insulation area, so that the user can adjust the size of the refrigeration area and the insulation area in the cold and hot cabinet as needed, so that the space utilization of the cold and hot cabinet is more flexible.

[0016] 2. The present invention installs a blocking component, a driving component and a grille plate. The switching mechanism can drive the 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.

[0017] 3. The present invention installs indicator lights and switch components. After the partition in the switching mechanism reaches the rear side of the designated shelf, the switching mechanism can control the indicator light on the shelf to be always on through the driving mechanism, thereby conveniently reminding the user of the separation position of the refrigeration area and the insulation area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the side section structure of the hot and cold cabinet body of the present invention; Figure 3 It is a schematic diagram of the switching mechanism and a single partition structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged split at center A; Figure 5 It is a schematic diagram of the side section structure of the partition frame of the present invention; Figure 6 This is a schematic diagram of the split state of the partition frame of the present invention; Figure 7 It is a schematic diagram of the structure of the partition frame of the present invention in cross section and separated from the blocking component; Figure 8 This is a schematic diagram of the split structure of the driving component and the blocking component of the present invention; Fig. 9 It is a schematic diagram of the structure of the driving component of the present invention.

[0019] In the figure: 1, hot and cold cabinet body; 2, first fan; 3, second fan; 4, electric heating tube; 5, air cavity; 6, support seat; 7, hollow seat; 8, partition; 9, support angle bracket; 10, first baffle; 11, threaded rod; 12, servo motor; 13, optical axis; 14, second baffle; 15, inclined rod; 16, first hinge seat; 17, second hinge seat; 18, pin rod; 19, first gasket; 20, socket seat; 21, first elastic Spring; 22, triangular drive block one; 23, roller; 24, spline rod; 25, support sleeve; 26, support rod; 27, washer; 28, second spring; 29, ball; 30, triangular drive block two; 31, through groove; 32, grille plate; 33, third spring; 34, stop rod; 35, drive groove; 36, indicator light; 37, switch box; 38, button rod; 39, second gasket; 40, fourth spring; 41, pressing block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Example 1: Please refer to Figure 1-Figure 3 , a hot and cold cabinet with a hot and cold air duct switching mechanism shown in the figure includes a hot and cold cabinet body 1, a first fan 2 is fixedly installed in the lower side cavity of the hot and cold cabinet body 1, the first fan 2 blows cold air to circulate the cold air in the hot and cold cabinet body 1, a second fan 3 is fixedly installed in the upper side cavity of the hot and cold cabinet body 1, an electric heating pipe 4 is fixedly installed on the front side of the second fan 3 corresponding to the inside of the hot and cold cabinet body 1, the second fan 3 is used to blow the heat generated by the electric heating pipe 4 to circulate the hot air in the hot and cold cabinet body 1, an air cavity 5 is arranged on the rear side of the storage area of ​​the hot and cold cabinet body 1, and also includes a partition frame; a space for separating the internal storage area of ​​the hot and cold cabinet body 1, the partition frame is installed in the storage area of ​​the hot and cold cabinet body 1.

[0022] There are multiple groups of partitions, which include a support seat 6 fixedly connected to the hot and cold cabinet body 1, a hollow seat 7 fixedly arranged at the center of the support seat 6, and two symmetrically distributed partitions 8 movably embedded in the upper end of the support seat 6. The support seat 6 is used to place the partitions 8, and the partitions 8 are used to place food. The partitions 8 are made of vacuum insulation panels. Two symmetrically distributed supporting angle brackets 9 are fixedly installed at the lower end of the hollow seat 7, and the connection between the supporting angle brackets 9 and the hot and cold cabinet body 1 is a fixed connection. The supporting angle brackets 9 are used to enhance the stability of the support seat 6.

[0023] A switching mechanism is used to switch the hot and cold storage spaces in the storage area of ​​the cold and hot cabinet body 1. The switching structure is installed on the inner side of 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 installed 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 an ordinary insulation board. An optical axis 13 passes through the first baffle 10 near both ends thereof, and the optical axis 13 is fixedly connected to the cold and hot cabinet body 1. The optical axis 13 is used to limit the first baffle 10.

[0024] Example 2: Please refer to Figure 3-Figure 7The present embodiment further explains the first embodiment. The blocking component is used to separate the hot and cold storage spaces inside the cold and hot cabinet body 1. The blocking component is installed inside the partition frame. There are two groups of blocking components in the partition frame, and they are symmetrically distributed. The blocking component includes two second baffles 14 plugged and unplugged with the support seat 6, and the two second baffles 14 are symmetrically distributed. The second baffles 14 are far away from each other at one end and can be movably against the rear side wall and the cabinet door of the cold and hot cabinet body 1 respectively. Two symmetrically distributed inclined rods 15 are installed between the two second baffles 14, and the inclined rods 15 are located inside the hollow seat 7. The inclined rods 15 are movably hinged to the second baffles 14 through the first hinge seat 16, and the two inclined rods 15 are hinged to the second hinge seat 17 at one end close to each other.

[0025] Two symmetrically distributed pins 18 are fixedly installed on the side where the two second baffles 14 are close to each other. The end of the pin 18 away from the second baffle 14 is fixedly connected to the first gasket 19. The outer side of the pin 18 is movably sleeved with a socket seat 20, and the socket seat 20 is fixedly connected to the support seat 6. The outer side of the pin 18 is movably sleeved with a first spring 21, and the two ends of the first spring 21 are respectively movably abutted against the first gasket 19 and the socket seat 20. The first spring 21 can drive the second baffle 14 to move through the pin 18, the first gasket 19 and the socket seat 20.

[0026] The driving assembly is used to drive the blocking assembly to move. The driving assembly is installed between the switching mechanism and the blocking assembly. The driving assembly includes a triangular driving block 22 installed on the upper side of the second hinge seat 17. A roller 23 is rotatably installed at the center of the upper end of the second hinge seat 17, and the connection between the roller 23 and the triangular driving block 22 is rolling contact. The triangular driving block 22 can drive the two second baffles 14 away from each other through the roller 23, the second hinge seat 17, the inclined rod 15 and the first hinge seat 16. The rear end of the triangular driving block 22 is fixedly embedded with a spline rod 24, and the spline rod 24 passes through the hollow seat 7 and the side wall of the hot and cold cabinet body 1. The outer side of the spline rod 24 is movably sleeved with a support sleeve 25, and the support sleeve 25 is fixedly connected to the hollow seat 7 through two symmetrically distributed support rods 26.

[0027] A washer 27 is fixedly sleeved on the outer side of the spline rod 24, and 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 movably abutted against the support sleeve 25 and the washer 27 respectively. The second spring 28 can drive the triangular drive block 22 to move backward through the washer 27 and the support sleeve 25. A ball 29 is movably embedded in the end of the spline rod 24 away from the triangular drive block 22. A triangular drive block 2 30 is fixedly embedded at the front center of the first baffle 10, and the connection between the ball 29 and the triangular drive block 2 30 is rolling contact. The triangular drive block 2 30 can drive the spline rod 24 and the triangular drive block 22 to move forward through the ball 29.

[0028] A plurality of through grooves 31 equidistantly distributed are provided at both upper and lower ends of the hollow seat 7. A grille plate 32 capable of moving forward and backward is movably installed on the upper side of the triangular driving block 22 inside the hollow seat 7, and the openings on the grille plate 32 coincide with the plurality of through grooves 31. The through grooves 31 facilitate gas circulation in the hollow seat 7.

[0029] Two symmetrically distributed third springs 33 are fixedly installed at the front end of the grille plate 32, and the end of the third spring 33 away from the grille plate 32 is fixedly connected to the hollow seat 7. The third spring 33 can drive the grille plate 32 to move backward through the hollow seat 7. A baffle 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 triangular driving block 22, and the triangular driving block 22 is movably abutted against the baffle 34 through the driving groove 35. The triangular driving block 22 can drive the grille plate 32 to move forward through the driving groove 35 and the baffle 34.

[0030] Example 3: Please refer to Figure 8 , Fig. 9 , this embodiment further explains 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 electrical connection, a button 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 button rod 38 away from the switch box 37, a fourth spring 40 is movably sleeved on the outer side of the switch box 37, and the two ends of the fourth spring 40 are movably abutted with the switch box 37 and the second gasket 39 respectively, the fourth spring 40 can drive the button rod 38 to move backward through the second gasket 39, a pressing block 41 is fixedly installed on the rear side of the spline rod 24 corresponding to the second gasket 39, and the connection between the pressing block 41 and the second gasket 39 is movably abutted, and the spline rod 24 can drive the button rod 38 to move forward through the pressing block 41.

[0031] Working principle: During the use of the cold and hot cabinet body 1, when the first fan 2 is running and the second fan 3 and the electric heating tube 4 stop running, only cold air circulates in 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 operation. At this time, the area of ​​the air cavity 5 located on the upper side of the first baffle 10 is switched to a hot air channel, and cold air and hot air circulate in 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 in the air cavity 5, the personnel can adjust the size of the insulation space and the refrigeration space in the cold and hot cabinet body 1 as needed, which effectively improves the flexibility of the use of the cold and hot cabinet body 1.

[0032] In the process of the first baffle plate 10 moving to the rear side of the designated shelf as required, the first baffle plate 10 will drive the spline rod 24 and the triangular driving block 1 22 to move forward through the triangular driving block 2 30. In the process of the triangular driving block 1 22 moving forward, the triangular driving block 1 22 will drive the two second hinge seats 17 to move away from each other through the bevel. In this process, the two second baffle plates 14 in each group of blocking components will move away from each other until they are respectively fitted with the rear side wall and the cabinet door of the hot and cold cabinet body 1. At the same time, in the process of the triangular driving block 1 22 moving forward, the triangular driving block 1 22 drives the blocking 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, so that the shelf and the blocking component and The grille plate 32 cooperates to divide the cold and hot spaces in the cold and hot cabinet body 1 (since the cabinet door is a sliding cabinet door, the second baffle plate 14 will not fit with the two cabinet doors at the same time, and there will be a gap between the second baffle plate 14 and the cabinet door located on the outside, but relative to the gap between the support seat 6 and the cabinet door, the area of ​​the gap is much smaller than the gap between the support seat 6 and the cabinet door, so 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, and after the triangular drive block 2 30 is separated from the spline rod 24, the second baffle plate 14, the triangular drive block 1 22 and the grille plate 32 are respectively driven by the compression elastic force of the first spring 21, the second spring 28 and the third spring 33 to move back and reset.

[0033] During the process of the triangular driving block 20 driving the spline rod 24 to move, the spline rod 24 drives the key rod 38 to move toward 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 partition corresponding to the spline rod 24 will be powered on and always on, which can remind the user of the separation position of the refrigeration area and the insulation area. When the spline rod 24 moves back and resets under the drive of the compression force of the second spring 28, the key rod 38 will move back and reset under the drive of the compression force of the fourth spring 40, so that the moving contact is separated from the static contact, thereby turning off the indicator light 36 on the partition.

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 the hot and cold storage spaces in the storage area of ​​the hot and cold cabinet body (1), the switching structure 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; The driving assembly is used to drive the blocking assembly to move, and the driving assembly is installed between the switching mechanism and the blocking assembly.

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).

Images