Cake cabinet capable of stably preserving moisture and heat

Abstract

The invention relates to the technical field of fresh-keeping equipment, in particular to a stable moisture and heat preservation cake cabinet which comprises a box body, a transparent cabinet body and a refrigeration module, the refrigeration module is arranged in the box body and comprises a first evaporator and a second evaporator, supporting side plates are fixedly arranged on the first evaporator and the second evaporator, and the supporting side plates are arranged on the transparent cabinet body. A quick defrosting component is arranged on the supporting side plate, a driving component used for driving the quick defrosting component is arranged on the supporting side plate, a water receiving tank is arranged below the second evaporator and the first evaporator, a heating pipe is arranged in the water receiving tank, and in the moving process of the connecting mounting frame, the heating pipe is arranged in the water receiving tank. A connecting mounting frame can drive a movable push plate to move through a sliding connecting strip, when the connecting mounting frame moves towards the side close to a supporting convex plate, the movable push plate can be driven to push out gas in a fixed cavity, the gas enters a fixed flat pipe through a telescopic communicating pipe and is finally sprayed out from a short gas outlet pipe, and flowing of the air is accelerated; and therefore, the defrosting speed is increased.

Description

Technical Field

[0001] The invention relates to the technical field of fresh-keeping equipment, in particular to a cake cabinet with stable moisture retention and heat preservation. Background Art

[0002] Cake cabinets, as a professional commercial refrigeration equipment, are widely used in bakery shops, dessert shops, supermarkets, hotels and other places. They are mainly used to display and preserve various cakes, pastries and other foods that need to be refrigerated and preserved. During the refrigeration process of the cake cabinet, its evaporator is prone to frost, which will reduce the heat exchange efficiency of the evaporator and increase energy consumption. At the same time, frequent defrosting process will cause temperature fluctuations in the cabinet, further affecting the preservation effect of the cake. In addition, during the defrosting process, the melting of the frost layer will take away some moisture, which will cause the humidity in the cabinet to decrease, which is not conducive to the storage of cakes. Summary of the invention

[0003] The object of the present invention is to provide a cake cabinet with stable moisture retention and heat preservation to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stable, moisturizing and heat-insulating cake cabinet, comprising a box body, a transparent cabinet body and a refrigeration module, wherein the refrigeration module is arranged in the box body, and the refrigeration module comprises an evaporator 1 and an evaporator 2, and the evaporator 1 and the evaporator 2 are both fixedly provided with supporting side plates, and a quick defrost component is provided on the supporting side plates, and a driving component for driving the quick defrost component is provided on the supporting side plates, and a water receiving trough is provided below the evaporator 2 and the evaporator 1, and a heating pipe is provided in the water receiving trough, and two fixed connecting pipes are connected to the water receiving trough, and solenoid valves are provided on the two fixed connecting pipes, and an elastic connecting pipe is provided to connect the quick defrost component and the fixed connecting pipe.

[0005] Preferably, the quick defrost component includes a supporting slide rod, a supporting convex plate, a connecting mounting frame, a rolling convex column, a sliding connecting rod and a return spring. The supporting slide rod is fixedly mounted on the supporting side plate, the supporting slide rod is slidably connected to the supporting convex plate, and a plurality of sliding connecting rods are slidably connected inside the supporting convex plate.

[0006] Preferably, one end of the sliding connecting rod is fixedly connected to a connecting mounting frame, and the other end of the sliding connecting rod is fixedly connected to a connecting protrusion. A return spring is sleeved on the sliding connecting rod, one end of the return spring is fixedly connected to the connecting mounting frame, and the other end of the return spring is fixedly connected to a supporting protrusion. A rotating joint is fixedly connected to the connecting mounting frame.

[0007] Preferably, the upper end of the rolling boss is rotatably connected to the connecting mounting frame, the lower end of the rolling boss is connected to the rotating end of the rotating joint, the lower end of the rotating joint is connected to the upper end of the elastic connecting tube, and two fixed cavities are opened in the middle of the supporting convex plate, and a movable push plate is slidably connected in the two fixed cavities.

[0008] Preferably, one end of the connecting mounting frame is fixedly connected to a sliding connecting strip, and the sliding connecting strip slides into the fixed cavity at one end away from the connecting mounting frame and is fixedly connected to the movable push plate. A telescopic connecting pipe and an air intake short pipe are connected to the fixed cavity, and a one-way air intake valve is provided on the air intake short pipe.

[0009] Preferably, the telescopic connecting tube is connected to an end away from the supporting convex plate and is connected to a fixed flat tube, the fixed flat tube is fixedly mounted on the connecting mounting frame, a plurality of short air outlet tubes are arranged on the fixed flat tube, a one-way air outlet valve is arranged on the short air outlet tube, a smooth protrusion is arranged on the rolling boss, the interior of the rolling boss is a cavity, and a plurality of air vents are opened on the rolling boss.

[0010] Preferably, the driving component includes a driving motor, a long threaded rod, a fixed rack, a supporting frame, a supporting sleeve, a connecting column, a driving convex column, a first worm gear, a first worm and a driving gear. The driving motor is fixedly mounted on the supporting side plate, and the long threaded rod is rotatably connected to the supporting side plate through a connecting support plate.

[0011] Preferably, the output end of the driving motor is fixedly connected to one end of the threaded long rod, the fixed rack is fixedly mounted on the support side plate through a connecting straight plate, the threaded long rod passes through the support convex plate and is threadedly connected to the support convex plate, the support connecting frame is fixedly mounted on the support convex plate, and the first worm is rotatably connected to the support connecting frame.

[0012] Preferably, the lower end of the first worm is fixedly connected to a driving gear, the driving gear is meshed with a fixed rack, a support sleeve is fixedly installed on the support frame, a connecting column is rotatably connected to the middle of the support sleeve, one end of the connecting column is fixedly connected to the first worm wheel, and the other end of the connecting column is fixedly connected to the driving convex column, the first worm wheel is meshed with the first worm, and a protrusion is provided on the driving convex column, and the protrusion is used to push the connecting protrusion to move.

[0013] Preferably, the refrigeration module also includes a compressor, a condenser is connected to the compressor, a drying filter is connected to the condenser, two branches are connected in parallel between the outlet of the drying filter and the return air pipe of the compressor, the first branch is connected in series with the first electronic expansion valve and evaporator 1, and the second branch is connected in series with the second electronic expansion valve and evaporator 2.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] Through the cooperation of the quick defrost component and the driving component, the driving gear can rotate by itself during the movement of the supporting convex plate, and then the connecting column can drive the driving convex column to rotate; when the protrusion on the driving convex column rotates to contact with the connecting protrusion, the driving convex column can drive the connecting protrusion to move to the side away from the supporting convex plate, and the connecting protrusion drives the connecting mounting frame to squeeze the reset spring through the sliding connecting rod, and drives the rolling protrusion to move away from the frost surface; when the protrusion on the driving convex column rotates to disengage from the connecting protrusion, under the elastic action of the reset spring, the rolling protrusion is driven to slightly knock on the frost surface, causing the frost surface to loosen or fall off.

[0016] During the movement of the connecting mounting frame, the connecting mounting frame can drive the movable push plate to move through the sliding connecting strip. When the connecting mounting frame moves to the side close to the supporting convex plate, the movable push plate can be driven to push the gas in the fixed cavity out. The gas enters the fixed flat tube through the telescopic connecting tube and is finally ejected from the air outlet short tube, thereby accelerating the flow of air and thereby increasing the defrosting speed.

[0017] By starting the heating tube, the electric heating tube evaporates the defrost water into water vapor. During the defrosting process, an evaporator has an electromagnetic valve underneath which is opened. Part of the water vapor can enter the elastic connecting tube through the fixed connecting tube, and then enter the rolling boss, and finally spray out from the vent holes on the rolling boss. The heat of the water vapor helps to accelerate the defrosting process of the evaporator, and the release of water vapor also increases the ambient humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 Schematic diagram of the internal structure of the present invention

[0020] Figure 3 It is a schematic diagram of the local structure of the present invention.

[0021] Figure 4 It is a schematic diagram of the overall structure of the quick defrosting component of the present invention.

[0022] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point A in the middle.

[0023] Figure 6 It is a schematic diagram of the partial structure of the quick defrosting component of the present invention.

[0024] Figure 7 This is a schematic structural diagram of the quick defrost component of the present invention from another perspective.

[0025] Figure 8 It is a diagram showing some detailed structures of the present invention.

[0026] Fig. 9 It is a schematic diagram of the internal structure of the supporting convex plate of the present invention.

[0027] Fig.10 It is a schematic diagram of the water receiving trough structure of the present invention.

[0028] Fig.11 It is a schematic diagram of the rolling boss structure of the present invention.

[0029] Fig.12 It is a schematic diagram of the local structure of the present invention.

[0030] Fig.13 It is a schematic diagram of the structure of the refrigeration module of the present invention.

[0031] In the figure: 1, box body; 101, transparent cabinet; 2, water tank; 3, heating pipe; 4, evaporator 1; 5, evaporator 2; 6, quick defrosting component; 7, driving component; 8, elastic connecting pipe; 9, fixed connecting pipe; 10, solenoid valve; 11, supporting side plate; 12, compressor; 13, condenser; 14, drying filter; 15, first electronic expansion valve; 16, second electronic expansion valve; 61, supporting slide rod; 62, supporting convex plate; 63, connecting mounting frame; 64, rolling convex column; 65, sliding Dynamic connecting rod; 66, return spring; 67, connecting cam; 68, fixed cavity; 69, movable push plate; 610, sliding connecting strip; 611, telescopic connecting pipe; 612, fixed flat tube; 613, air outlet short pipe; 614, air inlet short pipe; 615, rotary joint; 71, driving motor; 72, long threaded rod; 73, fixed rack; 74, supporting frame; 75, supporting sleeve; 76, connecting column; 77, driving convex column; 78, first worm wheel; 79, first worm; 710, driving gear. DETAILED DESCRIPTION

[0032] 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.

[0033] See also Figures 1 to 13The present invention provides a technical solution: a cake cabinet with stable moisture retention and heat preservation, comprising a cabinet 1, a transparent cabinet 101 and a refrigeration module, wherein the transparent cabinet 101 is provided with a transparent glass door, the refrigeration module is arranged in the cabinet 1, the refrigeration module comprises an evaporator 1 4 and an evaporator 2 5, the evaporator 1 4 and the evaporator 2 5 are both fixedly provided with a supporting side plate 11, the supporting side plate 11 is provided with a quick defrosting component 6, the supporting side plate 11 is provided with a driving component 7 for driving the quick defrosting component 6, a water receiving tank 2 is provided below the evaporator 2 5 and the evaporator 1 4, and a heating pipe is provided in the water receiving tank 2 3, two fixed connecting pipes 9 are connected to the water tank 2, and solenoid valves 10 are provided on the two fixed connecting pipes 9. An elastic connecting pipe 8 is connected between the quick defrost component 6 and the fixed connecting pipe 9. Through the cooperation of the quick defrost component 6 and the driving component 7, the self-rotation of the driving gear 710 can be realized during the movement of the supporting convex plate 62, and then the connecting column 76 can drive the driving convex column 77 to rotate. When the protrusion on the driving convex column 77 rotates to contact the connecting convex frame 67, the driving convex column 77 can drive the connecting convex frame 67 to move to the side away from the supporting convex plate 62, and the connecting convex frame 67 is connected to the supporting convex plate 62. The sliding connecting rod 65 drives the connecting mounting frame 63 to squeeze the return spring 66, and drives the rolling boss 64 to move away from the frosted surface. When the protrusion on the driving convex column 77 rotates to disengage from the connecting protrusion 67, under the elastic action of the return spring 66, the rolling boss 64 is driven to knock the frosted surface, causing the frosted surface to loosen or fall off. During the movement of the connecting mounting frame 63, the connecting mounting frame 63 can drive the moving push plate 69 to move through the sliding connecting strip 610. When the connecting mounting frame 63 moves to the side close to the supporting protrusion 62, it can drive the moving push plate 69 to push out the gas in the fixed cavity 68. The body enters the fixed flat tube 612 through the telescopic connecting tube 611, and is finally ejected from the air outlet short tube 613, which speeds up the flow of air and thereby increases the defrosting speed. By starting the heating tube 3, the electric heating tube evaporates the defrosting water into water vapor. During the defrosting process, an evaporator has an electromagnetic valve 10 below which is opened. Part of the water vapor can enter the elastic connecting tube 8 through the fixed connecting tube 9, and then enter the rolling boss 64, and finally ejected from the vent hole on the rolling boss 64. The heat of the water vapor helps to accelerate the defrosting process of the evaporator. At the same time, the release of water vapor also increases the ambient humidity.

[0034] The quick defrost component 6 includes a support slide 61, a support convex plate 62, a connecting mounting frame 63, a rolling convex column 64, a sliding connecting rod 65 and a return spring 66. The support slide 61 is fixedly installed on the support side plate 11. The support slide 61 is slidably connected with the support convex plate 62. The support convex plate 62 is internally slidably connected with a plurality of sliding connecting rods 65. One end of the sliding connecting rod 65 is fixedly connected with the connecting mounting frame 63, and the other end of the sliding connecting rod 65 is fixedly connected with the connecting convex frame 67. The sliding connecting rod 65 is sleeved with a return spring. 66, one end of the return spring 66 is fixedly connected to the connecting mounting frame 63, and the other end of the return spring 66 is fixedly connected to the supporting convex plate 62. A rotating joint 615 is fixedly connected to the connecting mounting frame 63. The upper end of the rolling boss 64 is rotatably connected to the connecting mounting frame 63, and the lower end of the rolling boss 64 is connected to the rotating end of the rotating joint 615. The lower end of the rotating joint 615 is connected to the upper end of the elastic connecting tube 8. Two fixed cavities 68 are opened in the middle of the supporting convex plate 62, and movable push plates 69 are slidably connected in the two fixed cavities 68.

[0035] One end of the connecting mounting frame 63 is fixedly connected with a sliding connecting strip 610, and the end of the sliding connecting strip 610 away from the connecting mounting frame 63 slides into the fixed cavity 68 and is fixedly connected to the movable push plate 69, and a telescopic connecting pipe 611 and an air intake short pipe 614 are connected to the fixed cavity 68, and a one-way air intake valve is provided on the air intake short pipe 614, and the telescopic connecting pipe 611 is connected to a fixed flat tube 612 at one end away from the supporting convex plate 62, and the telescopic connecting pipe 611 can be telescopic, and the fixed flat tube 612 is fixedly installed on the connecting mounting frame 63, and a plurality of air outlet short pipes 613 are provided on the fixed flat tube 612, and a one-way air outlet valve is provided on the air outlet short pipe 613, and a smooth protrusion is provided on the rolling boss 64, and the smooth protrusion can be made of rubber material to avoid damage to the evaporator caused by knocking, and the moving range of the rolling boss 64 is large. The degree is small, which reduces the damage to the evaporator. At the same time, the evaporator can be made of aluminum alloy or stainless steel to ensure the durability and damage resistance of the evaporator. The interior of the rolling boss 64 is a cavity setting, and a plurality of vents are opened on the rolling boss 64. When the evaporator alternately defrosts and still cannot meet the required humidity, the heating tube 3 is started, and the electric heating tube generates water vapor. When an evaporator is in the defrosting process, a solenoid valve 10 below it is opened, and when an evaporator is in the refrigeration process, a solenoid valve 10 below it is closed. Part of the water vapor can enter the elastic connecting tube 8 through the fixed connecting tube 9, and then enter the rolling boss 64, and finally spray out from the vents on the rolling boss 64. The heat of the water vapor helps to accelerate the defrosting process of the evaporator. At the same time, the release of water vapor also increases the ambient humidity.

[0036] The driving member 7 includes a driving motor 71, a threaded long rod 72, a fixed rack 73, a supporting frame 74, a supporting sleeve 75, a connecting column 76, a driving convex column 77, a first worm wheel 78, a first worm 79 and a driving gear 710. The driving motor 71 is fixedly mounted on the supporting side plate 11, the threaded long rod 72 is rotatably connected to the supporting side plate 11 through a connecting support plate, the output end of the driving motor 71 is fixedly connected to one end of the threaded long rod 72, and the fixed rack 73 is fixedly mounted on the supporting side plate 11 through a connecting straight plate. On the support side plate 11, the threaded long rod 72 passes through the support convex plate 62 and is threadedly connected to the support convex plate 62, the support frame 74 is fixedly installed on the support convex plate 62, the first worm 79 is rotatably connected to the support frame 74, the lower end of the first worm 79 is fixedly connected to a driving gear 710, the driving gear 710 is meshed with the fixed rack 73, and a support sleeve 75 is fixedly installed on the support frame 74, and a connecting column 76 is rotatably connected to the middle of the support sleeve 75, and one end of the connecting column 76 is fixed to the first worm gear 78. The other end of the connecting column 76 is fixedly connected to the driving convex column 77, the first worm gear 78 is meshed with the first worm 79, and a protrusion is provided on the driving convex column 77, which is used to push the connecting convex frame 67 to move, and the driving motor 71 drives the threaded long rod 72 to rotate, and the threaded long rod 72 is threadedly connected to the supporting convex plate 62. The rotation of the threaded long rod 72 can drive the supporting convex plate 62 to slide on the supporting slide rod 61. By controlling the forward and reverse rotation of the driving motor 71, the left and right movement of the supporting convex plate 62 can be achieved. When the support convex plate 62 moves, the first worm 79 and the driving gear 710 can be driven to move through the supporting frame 74. Since the driving gear 710 is engaged with the fixed rack 73, the driving gear 710 can rotate during the movement of the support convex plate 62. The driving gear 710 drives the first worm 79 to rotate, and the first worm 79 drives the first worm wheel 78 to rotate. The first worm wheel 78 drives the connecting column 76 to rotate on the supporting sleeve 75, and the connecting column 76 drives the driving convex column 77 to rotate.

[0037] The refrigeration module also includes a compressor 12, to which a condenser 13 is connected, to which a drying filter 14 is connected, and two branches are connected in parallel between the outlet of the drying filter 14 and the return air pipe of the compressor 12. The first branch is connected in series with a first electronic expansion valve 15 and an evaporator 4 in sequence, and the second branch is connected in series with a second electronic expansion valve 16 and an evaporator 5 in sequence. This is a publicly available prior art. When the evaporator 4 is defrosted, the evaporator 5 is refrigerated normally. At this time, the first electronic expansion valve 15 is closed and the second electronic expansion valve 16 is opened normally. When the evaporator 5 is defrosted, the evaporator 4 is refrigerated normally. At this time, the second electronic expansion valve 16 is closed and the first electronic expansion valve 15 is opened normally. By alternately defrosting the two evaporators, excessive temperature fluctuations in the box during the defrosting process are avoided.

[0038] In order to increase the defrosting speed, by starting the driving motor 71 on the evaporator in the defrosting state, the driving motor 71 drives the threaded long rod 72 to rotate, and the threaded long rod 72 is threadedly connected to the supporting convex plate 62. The rotation of the threaded long rod 72 can drive the supporting convex plate 62 to slide on the supporting slide bar 61. By controlling the forward and reverse rotation of the driving motor 71, the left and right movement of the supporting convex plate 62 can be achieved. When the supporting convex plate 62 is moving, the first worm 79 and the driving gear 710 can be driven to move through the supporting connecting frame 74. Since the driving gear 710 is engaged with the fixed rack 73, the supporting convex plate 62 can be moved during the movement of the supporting convex plate The driving gear 710 realizes its self-rotation, and the driving gear 710 drives the first worm 79 to rotate, and the first worm 79 drives the first worm wheel 78 to rotate, and the first worm wheel 78 drives the connecting column 76 to rotate on the support sleeve 75, and the connecting column 76 drives the driving convex column 77 to rotate. When the protrusion on the driving convex column 77 rotates to contact the connecting protrusion 67, the driving convex column 77 can drive the connecting protrusion 67 to move to the side away from the supporting protrusion plate 62, and the connecting protrusion 67 drives the connecting mounting frame 63 to squeeze the reset spring 66 through the sliding connecting rod 65, and drives the rolling protrusion 64 to move away from the frost surface. When the protrusion on the column 77 rotates to disengage from the connecting protrusion 67, under the elastic action of the return spring 66, the rolling protrusion 64 is driven to slightly knock the frost surface, so that the frost surface becomes loose, and the melting or falling of the frost is accelerated. During the movement of the connecting mounting frame 63, the connecting mounting frame 63 can drive the moving push plate 69 to move through the sliding connecting strip 610. When the connecting mounting frame 63 moves to the side close to the supporting protrusion 62, the moving push plate 69 can be driven to push the gas in the fixed cavity 68 out. The gas enters the fixed flat tube 612 through the telescopic connecting tube 611 and is finally ejected from the short air outlet tube 613. The air flow is accelerated, thereby increasing the defrosting speed. The defrosting water flows into the water receiving tank 2. When the alternating defrosting of the evaporator still cannot meet the required humidity, the heating tube 3 is started, and the electric heating tube generates water vapor. An evaporator is in the defrosting process, and a solenoid valve 10 under it is opened. Part of the water vapor can enter the elastic connecting tube 8 through the fixed connecting tube 9, and then enter the rolling boss 64, and finally spray out from the vent hole on the rolling boss 64. The water vapor is sprayed around the frost surface. The heat of the water vapor helps to accelerate the defrosting process of the evaporator. At the same time, the release of water vapor also increases the ambient humidity.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cake cabinet with stable moisture retention and heat preservation, comprising a cabinet (1), a transparent cabinet (101) and a refrigeration module, characterized in that: The refrigeration module is arranged in a box body (1), and the refrigeration module comprises an evaporator 1 (4) and an evaporator 2 (5). The evaporator 1 (4) and the evaporator 2 (5) are both fixedly provided with a support side plate (11), the support side plate (11) is provided with a quick defrost component (6), and the support side plate (11) is provided with a driving component (7) for driving the quick defrost component (6). A water receiving trough (2) is arranged below the evaporator 2 (5) and the evaporator 1 (4), a heating pipe (3) is arranged in the water receiving trough (2), two fixed connecting pipes (9) are connected to the water receiving trough (2), and solenoid valves (10) are arranged on the two fixed connecting pipes (9). An elastic connecting pipe (8) is arranged between the quick defrost component (6) and the fixed connecting pipe (9).

2. A cake cabinet with stable moisture retention and heat preservation according to claim 1, characterized in that: The quick defrost component (6) includes a supporting slide bar (61), a supporting convex plate (62), a connecting mounting frame (63), a rolling convex column (64), a sliding connecting rod (65) and a return spring (66); the supporting slide bar (61) is fixedly mounted on the supporting side plate (11); the supporting slide bar (61) is slidably connected to the supporting convex plate (62); and a plurality of sliding connecting rods (65) are slidably connected inside the supporting convex plate (62).

3. A cake cabinet with stable moisture retention and heat preservation according to claim 2, characterized in that: One end of the sliding connecting rod (65) is fixedly connected to the connecting mounting frame (63), and the other end of the sliding connecting rod (65) is fixedly connected to the connecting protrusion (67). A return spring (66) is sleeved on the sliding connecting rod (65), and one end of the return spring (66) is fixedly connected to the connecting mounting frame (63), and the other end of the return spring (66) is fixedly connected to the supporting protrusion (62). A rotating joint (615) is fixedly connected to the connecting mounting frame (63).

4. A cake cabinet with stable moisture retention and heat preservation according to claim 3, characterized in that: The upper end of the rolling boss (64) is rotatably connected to the connecting mounting frame (63), the lower end of the rolling boss (64) is connected to the rotating end of the rotating joint (615), the lower end of the rotating joint (615) is connected to the upper end of the elastic connecting tube (8), and two fixed cavities (68) are provided in the middle of the supporting convex plate (62), and a movable push plate (69) is slidably connected in the two fixed cavities (68).

5. The cake cabinet with stable moisture retention and heat preservation according to claim 4, characterized in that: One end of the connecting mounting frame (63) is fixedly connected to a sliding connecting strip (610), and one end of the sliding connecting strip (610) away from the connecting mounting frame (63) slides into the fixed cavity (68) and is fixedly connected to the movable push plate (69). The fixed cavity (68) is connected to a telescopic connecting pipe (611) and an air intake short pipe (614), and a one-way air intake valve is provided on the air intake short pipe (614).

6. The cake cabinet with stable moisture retention and heat preservation according to claim 5, characterized in that: The end of the telescopic connecting tube (611) away from the supporting convex plate (62) is connected to a fixed flat tube (612), the fixed flat tube (612) is fixedly mounted on the connecting mounting frame (63), a plurality of short air outlet tubes (613) are arranged on the fixed flat tube (612), a one-way air outlet valve is arranged on the short air outlet tube (613), a smooth protrusion is arranged on the rolling convex column (64), the interior of the rolling convex column (64) is a cavity, and a plurality of air vents are opened on the rolling convex column (64).

7. The cake cabinet with stable moisture retention and heat preservation according to claim 1, characterized in that: The driving component (7) comprises a driving motor (71), a threaded long rod (72), a fixed rack (73), a supporting frame (74), a supporting sleeve (75), a connecting column (76), a driving convex column (77), a first worm wheel (78), a first worm (79) and a driving gear (710); the driving motor (71) is fixedly mounted on the supporting side plate (11); and the threaded long rod (72) is rotatably connected to the supporting side plate (11) via a connecting support plate.

8. The cake cabinet with stable moisture retention and heat preservation according to claim 7, characterized in that: The output end of the driving motor (71) is fixedly connected to one end of the threaded long rod (72); the fixed rack (73) is fixedly mounted on the supporting side plate (11) via a connecting straight plate; the threaded long rod (72) penetrates the supporting convex plate (62) and is threadedly connected to the supporting convex plate (62); the supporting connecting frame (74) is fixedly mounted on the supporting convex plate (62); and the first worm (79) is rotatably connected to the supporting connecting frame (74).

9. The cake cabinet with stable moisture retention and heat preservation according to claim 8, characterized in that: The lower end of the first worm (79) is fixedly connected to a driving gear (710), and the driving gear (710) is meshed with a fixed rack (73). A support sleeve (75) is fixedly installed on the support frame (74), and a connecting column (76) is rotatably connected to the middle of the support sleeve (75). One end of the connecting column (76) is fixedly connected to the first worm wheel (78), and the other end of the connecting column (76) is fixedly connected to the driving convex column (77). The first worm wheel (78) is meshed with the first worm (79), and a protrusion is provided on the driving convex column (77), and the protrusion is used to push the connecting protrusion (67) to move.

10. The cake cabinet with stable moisture retention and heat preservation according to claim 9, characterized in that: The refrigeration module also includes a compressor (12), the compressor (12) is connected to a condenser (13), the condenser (13) is connected to a drying filter (14), two branches are connected in parallel between the outlet of the drying filter (14) and the return air pipe of the compressor (12), the first branch is connected in series with a first electronic expansion valve (15) and an evaporator 1 (4), and the second branch is connected in series with a second electronic expansion valve (16) and an evaporator 2 (5).

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