A frozen dough transportation device based on cold chain system

Abstract

The invention discloses a frozen dough transportation device based on a cold chain system, which relates to the technical field of cold chain transportation and comprises a conveyor belt, wherein the conveyor belt comprises side plates, a belt and supporting legs, wherein the belt is used to transport the frozen dough, wherein two horizontal plates are arranged above the side plates, wherein a fixing box is arranged above the horizontal plates, wherein the fixing box is in a C-shape as a whole and is located directly above the belt, wherein two bottom ends of the fixing box are respectively fixedly connected with the two horizontal plates, wherein a cooling cylinder is arranged inside the fixing box, wherein a channel for discharging cold air is arranged below the cooling cylinder, wherein the cold air discharged through the channel is aligned directly above the dough, wherein in the device, the cold air will be further cooled after passing through the cooling cylinder, and the dough directly below will be rapidly cooled from the channel, thereby ensuring that the dough has sufficient pre-frozen quality and has a normal quality preservation effect during the re-transportation.

Description

Technical Field

[0001] The invention relates to the technical field of cold chain transportation, in particular to frozen dough transportation equipment based on a cold chain system. Background Art

[0002] The cold chain system is a general term for a series of equipment and technologies used to refrigerate and freeze food. Its main purpose is to maintain the freshness and quality of food and prevent it from spoiling and losing due to excessively high or low temperatures. The main components of the cold chain system include refrigerated trucks, cold storage, and refrigerated cabinets. These equipment and systems are widely used in the food industry, such as the baking industry.

[0003] In the field of cold chain transportation of dough, the dough usually needs to be pre-frozen before frozen transportation. Pre-freezing is the process of rapidly freezing the dough or semi-finished bread in the bread production process, usually below -30°C, to ensure the quality of the dough and extend its shelf life. The pre-frozen dough should be stored in an environment below -18°C, and the shelf life can reach 3-6 months, so that the dough can maintain stable quality during transportation. In the common small dough processing factories, the frozen packaging system for frozen dough is relatively simple. Most of them are directly packaged and placed in the freezer without pre-freezing environment. After the dough surface hardens, it is directly transported in the cold chain. This may lead to insufficient freezing quality of the dough inside during long-distance transportation. Without the protection of pre-freezing, the dough will be more susceptible to microbial contamination, which will greatly shorten its shelf life.

[0004] To this end, the present invention proposes a frozen dough transportation device based on a cold chain system. Summary of the invention

[0005] The purpose of the present invention is to provide a frozen dough transportation device based on a cold chain system to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: a frozen dough transportation device based on a cold chain system, comprising a conveyor belt, the conveyor belt comprising side plates, belts and legs, the belts are used to transport frozen dough,

[0006] Two horizontal plates are arranged above the side plates, a fixing box is arranged above the horizontal plates, the fixing box is in a C-shape as a whole and is located directly above the belt, the two bottom ends of the fixing box are respectively fixedly connected to the two horizontal plates, a cooling cylinder is arranged inside the fixing box, a channel for cold air discharge is arranged below the cooling cylinder, and the cold air discharged through the channel is aligned directly above the dough;

[0007] Two clamping handles for clamping the dough are provided on the inner side of the fixing box, a connecting shaft is provided on one side of the clamping handle, and a flipping unit for driving the connecting shaft to rotate is provided inside the fixing box, so that the clamping handles flip the dough in the clamping state, so that the cold air discharged in the channel acts on the bottom area of ​​the dough.

[0008] Preferably, the flip unit includes a spur gear connected to the outer wall of the shaft, an intermittent gear meshing with the spur gear is provided below the spur gear, a transmission shaft is provided inside the intermittent gear, the transmission shaft passes through the side plate and is rotatably connected thereto, a servo motor is provided at the end of the transmission shaft, a pressure sensor is provided below the belt, the servo motor is electrically connected to the pressure sensor, a rotating plate is also provided on the outer wall of the connecting shaft, a spring 1 is provided above the rotating plate, a fixed plate 1 is provided at the other end of the spring 1, and one side of the fixed plate 1 is fixedly connected to the inner wall of the fixed box.

[0009] Preferably, an air box is provided above the horizontal plate, a plurality of nozzles for discharging cold air are provided on one side of the air box, an air supply box is provided at the bottom of the side plate, an air pipe 1 is provided between the air supply box and the air box, an air pipe 2 is provided at one end of the air box, the other end of the air pipe 2 is connected to the fixed box, and the air outlet of the air pipe 2 is aligned with the end of the cooling cylinder.

[0010] Preferably, the bottom of the intermittent gear is provided with a tooth plate meshing therewith, the tooth plate is slidably connected to the side plate, the end of the tooth plate is provided with an airbag, the end of the airbag is provided with a second fixing plate, the airbag has a self-healing function, a connecting rod is provided on one side of the tooth plate, a sliding rod is provided on the inner wall of the connecting rod, a moving block is provided at the bottom of the sliding rod, and the bottom surface of the moving block completely blocks the channel.

[0011] Preferably, the elastic force of the spring 1 drives the rotating plate to drive the connecting shaft to rotate until the clamping handle and the belt are parallel to each other in a normal state.

[0012] Preferably, an inclined block is provided on one side of the end of the movable block, a spring 2 is provided on one side of the inclined block, a fixing plate 3 is provided on the other end of the spring 2, a transfer pipe is provided on the outer wall of the fixing box, the inclined block completely blocks the air inlet of the transfer pipe, an air pipe 3 is provided on the end of the transfer pipe, a fixing cylinder is provided on the other end of the air pipe 3, and the connecting shaft is located inside the fixing cylinder and slides relative to it.

[0013] Preferably, when the inner wall of the end of the connecting shaft is in contact with the outer wall of the fixing box, the two clamping handles clamp the side walls of the dough synchronously.

[0014] Preferably, the connecting shaft and the clamping handle are both hollow structures, and the inner wall of the clamping handle is provided with a plurality of through holes for discharging cold air. When the clamping handle is in a clamping state for the dough, the cold air discharged through the through holes acts on the surface of the dough.

[0015] Preferably, a plurality of transmission rollers are provided above the transverse plate, and the transmission rollers are located between two adjacent nozzles, and the cold air discharged through the nozzles acts on the outer wall of the dough.

[0016] The present invention has at least the following beneficial effects:

[0017] 1. In the present invention, the dough is conveyed to the bottom of the fixed box by a conveyor belt. During this process, the cold air discharged from the nozzle will preliminarily freeze the surface of the dough, so that the surface of the dough has a good hardness, which is convenient for subsequent clamping by the clamping handle, and also provides favorable factors for subsequent quick freezing;

[0018] When the dough moves to the top of the pressure sensor, the servo motor starts automatically, driving the tooth plate to drive the connecting rod, the sliding rod and the moving block to move inside the fixed box. On the one hand, the bottom of the moving block will lose its shielding of the channel, and the cold air transported by the air box to the inside of the air pipe 2 will be further cooled by the cooling cylinder and discharged downward from the channel, so that the dough at this position can be quickly frozen. On the other hand, the end of the moving block will cause the inclined block to move, so that the air inlet of the transfer pipe will lose its shielding, and then the cold air will also enter the inside of the air pipe 3 and the fixed cylinder, squeezing the end part of the connecting shaft, so that the two clamping handles are synchronously close to clamp the dough stably. The intermittent gear will also mesh with the flat gear for transmission, thereby driving the connecting shaft and the clamping handle in the clamping state to flip. In this process, all sides of the dough in the middle of the clamping handle will be evenly frozen and cooled, which improves the overall quick-freezing effect of the dough and provides a stable quality guarantee for subsequent long-distance transportation.

[0019] 2. In the present invention, during the process of the clamping handle clamping and turning over the dough, the cold air introduced into the connecting shaft by the air pipe 3 will overflow outward from the through hole of the clamping handle, and then the clamped area of ​​the dough will also be quickly frozen at the same time, so that the pre-freezing effect of the frozen dough is better, the possible contamination during transportation is reduced to a great extent, and the dough is guaranteed to have a good shelf life. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0021] Figure 2 It is a structural schematic diagram of the present invention from another angle;

[0022] Figure 3 This is a cross-sectional view of the fixing box structure of the present invention;

[0023] Figure 4 For the present invention Figure 3 A magnified view of the structure of the middle A area;

[0024] Figure 5 It is a cross-sectional view of the flip unit structure of the present invention;

[0025] Figure 6 For the present invention Figure 5 A magnified view of the structure of the middle B region;

[0026] Figure 7 For the present invention Figure 5 A magnified view of the structure of the middle C region;

[0027] Figure 8 This is a schematic diagram of the cooling cylinder structure of the present invention;

[0028] Fig. 9 It is a cross-sectional view of the local structure of the fixing box of the present invention;

[0029] Fig.10 This is a cross-sectional view of the overall structure of the present invention from another angle.

[0030] In the figure: 1-conveyor belt; 101-side plate; 102-belt; 103-support foot; 2-cross plate; 3-fixed box; 4-cooling cylinder; 5-channel; 6-clamping handle; 7-connecting shaft; 8-turning unit; 801-flat gear; 802-intermittent gear; 803-drive shaft; 804-servo motor; 805-pressure sensor; 806-rotating plate; 807-spring one; 808-fixed plate one; 9-air box; 10-nozzle; 11-air supply box; 12-air pipe one; 13-air pipe two; 14-tooth plate; 15-air bag; 16-fixed plate two; 17-connecting rod; 18-slide rod; 19-moving block; 20-oblique block; 21-spring two; 22-fixed plate three; 23-transfer pipe; 24-air pipe three; 25-fixed cylinder; 26-through hole; 27-drive roller. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-10 The present invention provides a technical solution: a frozen dough transportation device based on a cold chain system, comprising: Example

[0033] Conveyor belt 1, conveyor belt 1 includes side plates 101, belt 102 and support legs 103, side plates 101 and support legs 103 are rotatably connected by rollers, and the rollers drive belt 102 for conveying, and belt 102 is used to convey frozen dough. The above is the prior art, and there are traces to be found in related fields.

[0034] In this solution, two horizontal plates 2 are arranged above the side plates 101, and the bottoms of the two horizontal plates 2 are fixedly connected to the tops of the two side plates 101 respectively. A fixing box 3 is arranged above the horizontal plates 2. The fixing box 3 is C-shaped as a whole and is located directly above the belt 102. The two bottom ends of the fixing box 3 are fixedly connected to the two horizontal plates 2 respectively. A cooling cylinder 4 is arranged inside the fixing box 3. The cooling cylinder 4 has two parts, both of which are located inside the fixing box 3 and fixedly connected thereto. A channel 5 for discharging cold air is arranged below the cooling cylinder 4. The cold air discharged through the channel 5 is aligned with the top of the dough. The cold air will be further cooled after passing through the cooling cylinder 4, and the dough directly below will be rapidly cooled from the channel 5, so as to ensure that the dough has sufficient pre-frozen quality and has a normal shelf life during transportation.

[0035] Two clamping handles 6 for clamping the dough are provided on the inner side of the fixed box 3, a connecting shaft 7 is provided on one side of the clamping handle 6 and fixedly connected thereto, a flipping unit 8 is provided inside the fixed box 3 for driving the connecting shaft 7 to rotate, so that the clamping handle 6 flips the dough in the clamped state, so that the cold air discharged from the channel 5 acts on the bottom area of ​​the dough; through the flipping unit 8, the upper and lower surfaces of the dough are sufficiently treated with cold air during transportation, so that the freezing quality of the dough is further improved.

[0036] An air box 9 is provided above the horizontal plate 2 and is fixedly connected thereto. A plurality of nozzles 10 for discharging cold air are provided on one side of the air box 9. The ends of the plurality of nozzles 10 are connected to the air box 9. An air supply box 11 is provided at the bottom of the side plate 101 and is fixedly connected thereto. An air pipe 12 is provided between the air supply box 11 and the air box 9. The two ends of the air pipe 12 are connected to the air supply box 11 and the air box 9, respectively. A plurality of transmission rollers 27 are provided above the horizontal plate 2. The transmission rollers 27 are rotatably connected to the horizontal plate 2 through a rotating shaft. The plurality of transmission rollers 27 can make During the movement of the dough on the belt 102, the position of the dough is adjusted so that it is always in the central conveying position of the belt 102, thereby ensuring that the two clamping handles 6 have a stable clamping effect on the dough. The transmission roller 27 is located between two adjacent nozzles 10, and the cold air discharged from the nozzles 10 acts on the outer wall of the dough. One end of the air box 9 is provided with an air pipe 13 and is connected to the air pipe 13. The other end of the air pipe 13 is connected to the fixed box 3, and the air outlet of the air pipe 13 is aligned with the end of the cooling cylinder 4.

[0037] When the dough is conveyed on the belt 102, the air supply box 11 will automatically inject cold air into the air box 9, and the cold air will initially freeze the outer wall of the dough, making the subsequent clamping effect of the dough more stable, and also providing a good environment for the quick freezing of the dough.

[0038] The flip unit 8 includes a flat gear 801 on the outer wall of the connecting shaft 7. The flat gear 801 slides relative to the connecting shaft 7, and the connecting shaft 7 can drive the flat gear 801 to rotate. An intermittent gear 802 meshing with the flat gear 801 is provided below the flat gear 801. A transmission shaft 803 is provided inside the intermittent gear 802 and fixedly connected with the intermittent gear 802. The transmission shaft 803 passes through the side plate 101 and is rotatably connected with the side plate 101. A servo motor 804 is provided at the end of the transmission shaft 803. The bottom of the servo motor 804 is fixedly connected to the side plate 101 through a fixing frame. The transmission shaft 803 is connected to the rotating shaft of the servo motor 804 through a coupling. A pressure sensor 805 is provided below the belt 102. One side of the pressure sensor 805 is fixedly connected to the inner wall of the side plate 101. The transmission shaft 803 passes through the pressure sensor 805 and rotates relative to it. The servo motor 804 and the pressure sensor 8 05 electrical connection, when the pressure sensor 805 is squeezed by gravity, the servo motor 804 starts automatically and rotates a preset number of circles, the outer wall of the connecting shaft 7 is also provided with a rotating plate 806 and slides relatively therewith, and the connecting shaft 7 can drive the rotating plate 806 to rotate, a spring 807 is provided above the rotating plate 806 and is fixedly connected thereto, and a fixed plate 808 is provided at the other end of the spring 807 and is fixedly connected thereto, and the elastic force of the spring 807 drives the rotating plate 806 to drive the connecting shaft 7 to rotate until the clamping handle 6 and the belt 102 are parallel to each other under normal conditions, and one side of the fixed plate 808 is fixedly connected to the inner wall of the fixed box 3, and through the elastic force of the spring 807 and the mutual cooperation of the intermittent gear 802, the flipping state of the dough clamped by the clamping handle 6 can be restored, so that the dough returns to the initial conveying state, which is conducive to the normal operation of the subsequent packaging process;

[0039] The bottom of the intermittent gear 802 is provided with a tooth plate 14 meshing with it, and the tooth plate 14 is slidably connected to the side plate 101. The end of the tooth plate 14 is provided with an air bag 15 and fixedly connected to it. The end of the air bag 15 is provided with a fixed plate 216 and fixedly connected to it. One side of the fixed plate 216 is fixedly connected to the outer wall of the side plate 101. The air bag 15 has a self-recovery function. One side of the tooth plate 14 is provided with a connecting rod 17 and fixedly connected to it. The overall shape of the connecting rod 17 is C-shaped. The inner wall of the connecting rod 17 is provided with a sliding rod 18 and fixedly connected to it. The bottom of the sliding rod 18 is provided with a moving block 19 and fixedly connected to it. The bottom surface of the moving block 19 completely blocks the channel 5. An inclined block 20 is provided on one side of the end of the moving block 19. One side of the inclined block 20 slides relatively with the inner wall of the fixed box 3. One side of the inclined block 20 is provided with a spring 21 and fixedly connected to it. The spring 22 A fixing plate 3 22 is provided at the other end of 1 and is fixedly connected thereto, one side of the fixing plate 3 22 is fixedly connected to the inner wall of the fixing box 3, a transfer pipe 23 is provided on the outer wall of the fixing box 3 and is connected thereto, the inclined block 20 completely blocks the air inlet of the transfer pipe 23, an air pipe 3 24 is provided at the end of the transfer pipe 23 and is connected thereto, a fixing cylinder 25 is provided at the other end of the air pipe 3 24, there are two air pipes 3 24, which are respectively connected to the fixing cylinders 25 on both sides of the fixing box 3, the ends of the fixing cylinders 25 are fixedly connected to the outer wall of the fixing box 3, the connecting shaft 7 is located inside the fixing cylinder 25 and slides relatively thereto, when the inner wall at the end of the connecting shaft 7 is in contact with the outer wall of the fixing box 3, the two clamping handles 6 clamp the side wall of the dough synchronously, and the two clamping handles 6 are brought close to each other synchronously through the compression effect of the gas, so as to stably clamp and flip the dough;

[0040] When in use, the dough kneaded by the dough kneading machine will be transported to the bottom of the fixed box 3 through the conveyor belt. During this process, the cold air discharged from the nozzle 10 will preliminarily freeze the surface of the dough, so that the surface of the dough has a good hardness, which is convenient for the subsequent clamping handle 6 to clamp, and also provides a favorable factor for the subsequent quick freezing;

[0041] Furthermore, when the dough moves to the top of the pressure sensor 805, the servo motor 804 starts automatically, driving the intermittent gear 802 and the tooth plate 14 to mesh and transmit each other, and then the connecting rod 17 will drive the sliding rod 18 and the moving block 19 to move inside the fixed box 3. On the one hand, the bottom of the moving block 19 will lose the shielding of the channel 5, and the cold air transported by the air box 9 to the inside of the air pipe 2 13 will be further cooled by the cooling cylinder 4 and will be discharged downward from the channel 5, so that the dough at this position can be well quick-frozen; on the other hand, the end of the moving block 19 will resist the upper part of the inclined block 20, so that the inclined block 20 will be displaced, so that the air inlet of the transfer pipe 23 will lose the shielding, and then the cold air will also enter the inside of the air pipe 3 24 and the fixed cylinder 25 from the transfer pipe 23, squeeze the end part of the connecting shaft 7, so that the two clamping handles 6 are synchronously close to clamp the dough stably;

[0042] At the same time, the intermittent gear 802 will also mesh with the flat gear 801 for transmission, thereby driving the connecting shaft 7 and the clamping handle 6 in the clamping state to flip. During this process, all surfaces of the dough in the middle of the clamping handle 6 will be evenly frozen and cooled, thereby improving the overall quick-freezing effect of the dough and providing a stable quality guarantee for subsequent long-distance transportation. When the tooth block of the intermittent gear loses meshing with the flat gear 801, the elastic force of the spring 1 807 will automatically drive the rotating plate 806 and the connecting shaft 7 to return to their initial positions, and then the dough in the clamping state will also return to its initial state. At the same time, when the intermittent gear loses meshing with the tooth plate 14, the airbag 15 will drive the tooth plate 14 to reset, and driven by the elastic force of the spring 21, the positions of the moving block 19, the inclined block 20 and the connecting shaft 7 are all reset, preparing for the next quick-freezing of the dough.

[0043] According to the above embodiment, embodiment 2,

[0044] The connecting shaft 7 and the clamping handle 6 are both hollow structures. The inner wall of the clamping handle 6 is provided with a plurality of through holes 26 for exhausting cold air. When the clamping handle 6 is in a clamping state for the dough, the cold air exhausted through the through holes 26 acts on the surface of the dough.

[0045] In the process of the clamping handle 6 clamping and turning the dough, the cold air introduced into the connecting shaft 7 through the air pipe 3 24 will overflow outward from the through hole 26 of the clamping handle 6, and then the clamped area of ​​the dough will also be quickly frozen at the same time, so that the pre-freezing effect of the frozen dough is better, the possible contamination during transportation is reduced to a great extent, and the dough is guaranteed to have a good shelf life.

[0046] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0047] 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 frozen dough transport device based on a cold chain system, comprising a conveyor belt (1), wherein the conveyor belt (1) comprises a side plate (101), a belt (102) and a support foot (103), wherein the belt (102) is used to transport the frozen dough. Features: Two horizontal plates (2) are provided above the side plates (101), and a fixing box (3) is provided above the horizontal plates (2). The fixing box (3) is C-shaped as a whole and is located directly above the belt (102). The two bottom ends of the fixing box (3) are respectively fixedly connected to the two horizontal plates (2). A cooling cylinder (4) is provided inside the fixing box (3), and a channel (5) for discharging cold air is provided below the cooling cylinder (4). The cold air discharged through the channel (5) is aligned directly above the dough. Two clamping handles (6) for clamping the dough are provided on the inner side of the fixing box (3), a connecting shaft (7) is provided on one side of the clamping handle (6), and a turning unit (8) for driving the connecting shaft (7) to rotate is provided inside the fixing box (3), so that the clamping handle (6) turns the dough in a clamping state, so that the cold air discharged from the channel (5) acts on the bottom surface area of ​​the dough, the connecting shaft (7) and the clamping handle (6) are both hollow structures, and the inner wall of the clamping handle (6) is provided with a plurality of through holes (26) for the discharge of cold air, and when the clamping handle (6) is in a clamping state for the dough, the cold air discharged through the through holes (26) acts on the surface of the dough.

2. The frozen dough transportation equipment based on the cold chain system according to claim 1, characterized in that: The flip unit (8) comprises a flat gear (801) connected to the outer wall of the shaft (7); an intermittent gear (802) meshing with the flat gear (801) is provided below the flat gear (801); a transmission shaft (803) is provided inside the intermittent gear (802); the transmission shaft (803) passes through the side plate (101) and is rotatably connected thereto; a servo motor (804) is provided at the end of the transmission shaft (803); a pressure sensor (805) is provided below the belt (102); the servo motor (804) is electrically connected to the pressure sensor (805); a rotating plate (806) is further provided on the outer wall of the connecting shaft (7); a spring (807) is provided above the rotating plate (806); a fixed plate (808) is provided at the other end of the spring (807); one side of the fixed plate (808) is fixedly connected to the inner wall of the fixed box (3).

3. The frozen dough transportation equipment based on the cold chain system according to claim 2, characterized in that: An air box (9) is provided above the horizontal plate (2), and a plurality of nozzles (10) for discharging cold air are provided on one side of the air box (9). An air supply box (11) is provided at the bottom of the side plate (101), and an air pipe 1 (12) is provided between the air supply box (11) and the air box (9). An air pipe 2 (13) is provided at one end of the air box (9), and the other end of the air pipe 2 (13) is connected to the fixed box (3), and the air outlet of the air pipe 2 (13) is aligned with the end of the cooling cylinder (4).

4. The frozen dough transportation equipment based on the cold chain system according to claim 2, characterized in that: The bottom of the intermittent gear (802) is provided with a tooth plate (14) meshing therewith, the tooth plate (14) is slidably connected to the side plate (101), the end of the tooth plate (14) is provided with an air bag (15), the end of the air bag (15) is provided with a second fixing plate (16), the air bag (15) has a self-restoring function, one side of the tooth plate (14) is provided with a connecting rod (17), the inner wall of the connecting rod (17) is provided with a sliding rod (18), the bottom of the sliding rod (18) is provided with a moving block (19), and the bottom surface of the moving block (19) completely blocks the channel (5).

5. The frozen dough transportation equipment based on the cold chain system according to claim 2, characterized in that: In a normal state, the elastic force of the spring 1 (807) drives the rotating plate (806) to drive the connecting shaft (7) to rotate until the clamping handle (6) and the belt (102) are parallel to each other.

6. The frozen dough transportation equipment based on the cold chain system according to claim 4, characterized in that: An inclined block (20) is provided at one side of the end of the moving block (19), a spring 2 (21) is provided at one side of the inclined block (20), a fixing plate 3 (22) is provided at the other end of the spring 2 (21), a transfer tube (23) is provided at the outer wall of the fixing box (3), the inclined block (20) completely blocks the air inlet of the transfer tube (23), an air pipe 3 (24) is provided at the end of the transfer tube (23), a fixing cylinder (25) is provided at the other end of the air pipe 3 (24), and the connecting shaft (7) is located inside the fixing cylinder (25) and slides relative to the fixing cylinder (25).

7. The frozen dough transportation equipment based on the cold chain system according to claim 6, characterized in that: When the inner wall of the end of the connecting shaft (7) is in contact with the outer wall of the fixing box (3), the two clamping handles (6) clamp the side walls of the dough synchronously.

8. The frozen dough transportation equipment based on the cold chain system according to claim 3, characterized in that: A plurality of transmission rollers (27) are provided above the transverse plate (2), and the transmission rollers (27) are located between two adjacent nozzles (10), so that the cold air discharged through the nozzles (10) acts on the outer wall of the dough.

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