Damp-proof packaging equipment for brown granulated sugar particles
By combining a heater and molecular sieve desiccant into a dehumidification system, along with a sealing mechanism, the problem of insufficient moisture absorption capacity of the desiccant in brown sugar granule packaging equipment is solved, achieving efficient moisture-proof treatment of brown sugar granules and ensuring product quality.
Patent Information
- Application Number
- CN202520029434.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-07
AI Technical Summary
In existing brown sugar granule packaging equipment, the desiccant has limited moisture absorption capacity. When the moisture content in the packaging environment is too high or the packaging time is too long, the desiccant will become saturated and lose its moisture absorption capacity, affecting the moisture-proof effect and product quality.
Air is heated by a heater, and a closed airflow circulation channel is constructed through a ring pipe. Preliminary dehumidification is carried out using a cooling plate and molecular sieve desiccant. A double seal is achieved by combining a sealing mechanism and an expansion ring to ensure the dryness and airtightness of the storage tank.
It effectively removes moisture from the inside of the storage tank, ensuring the moisture-proof effect of the brown sugar granules, improving the sealing of the packaging equipment, preventing the brown sugar granules from clumping and deteriorating, and maintaining product quality.
Smart Images

Figure CN223574884U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to brown sugar packaging technical field especially relates to brown sugar particle moistureproof packaging equipment. BACKGROUND
[0002] Brown sugar particles are a common condiment, widely used in various cooking and baking food, not only can add sweetness to food, also can bring unique flavor and color to food, the production process of brown sugar particles usually includes refining, crystallization and drying steps to ensure its purity and quality, the size and shape of this sugar particle are different, can be selected according to different cooking needs, brown sugar particles will use packaging equipment after production and processing.
[0003] Brown sugar particle packaging equipment is a kind of mechanical equipment specially used for packaging brown sugar particles, this equipment can efficiently complete the metering, filling and sealing of a series of packaging work of brown sugar particles, greatly improves the packaging efficiency and precision, usually including automatic metering, filling, sealing and conveying main part, ensures the quality and sanitary standard of brown sugar particles in the packaging process, brown sugar particles are stored through the storage barrel on packaging equipment, facilitate subsequent packaging filling, but brown sugar particles are agglomerated and deteriorated due to the influence of external environment, the existing solution is to add desiccant in the barrel to reduce internal humidity, but the moisture absorption capacity of desiccant is limited, when the moisture content in the packaging environment is too high or the packaging time is too long, the desiccant will be saturated, lose the moisture absorption capacity, affect the moistureproof effect and product quality, therefore, brown sugar particle moistureproof packaging equipment is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0004] In order to make up for the above shortcomings, the utility model provides brown sugar particle moistureproof packaging equipment, aims at improving the moisture absorption capacity of the desiccant in prior art is limited, when the moisture content in the packaging environment is too high or the packaging time is too long, the desiccant will be saturated, lose the moisture absorption capacity problem.
[0005] In order to achieve the above object, the utility model discloses the following technical scheme: red granulated sugar moistureproof packaging equipment, including packing box and storage jar, the outer wall left side of storage jar is connected with heating box, the top fixed coupling of heating box has the heater, the left side of heating box is provided with the air inlet, the right side of heating box is through the outer wall of storage jar and is connected with annular pipe, the outer wall of annular pipe is connected with a plurality of mesh tubes, one end of annular pipe is through the inner wall right side of storage jar and is connected with the dehumidification bucket of intercommunication, the inner wall bottom of dehumidification bucket is installed with cooling disc, the top of cooling disc is installed with molecular sieve drier, the top of dehumidification bucket is connected with fan, one end of fan is connected with circulation pipe, the other end of circulation pipe is connected in the back of heating box, the outer wall left side of storage jar is fixedly connected with humidity transducer, the top of storage jar is provided with sealing mechanism, sealing mechanism is used to seal the storage jar and is sealed.
[0006] As a further description of the above technical solution:
[0007] The sealing mechanism includes a sealing cover, the bottom of the sealing cover is fixedly connected to the top of the storage tank, the bottom of the sealing cover is fixedly connected to the fitting plate, the outer wall of the fitting plate is provided with a fitting groove, the bottom of the sealing cover is fixedly connected to the sealing ring, the inner wall top of the storage tank is fixedly connected to the mounting ring, the inner wall of the mounting ring is fixedly connected to the expansion ring, the outer wall of the sealing cover is fixedly connected to the buckle, the outer wall of the storage tank is fixedly connected to the fixing piece, the top of the sealing cover is fixedly connected to the air pump, one end of the air pump is connected to the gas pipe, the other end of the gas pipe is connected to the outer wall of the expansion ring.
[0008] As a further description of the above technical solution:
[0009] The sealing mechanism further includes a pressure sensor, the bottom end of the pressure sensor is fixedly connected to the outer wall top of the gas pipe.
[0010] As a further description of the above technical solution:
[0011] The bottom of the storage tank is connected to the discharge pipe, and the outer wall of the discharge pipe is provided with a quantitative valve.
[0012] As a further description of the above technical solution:
[0013] The front side of the packing box is connected to the discharge pipe, and the front side of the packing box is fixedly connected to the placing plate.
[0014] As a further description of the above technical solution:
[0015] The bottom of the placing plate is fixedly connected to the reinforcing plate, and the rear side of the reinforcing plate is fixedly connected to the front side of the packing box.
[0016] As a further description of the above technical solutions:
[0017] The right side of the packaging box is rotationally connected with a box door, a heat dissipation hole is formed in the right side of the box door, and the top left side of the packaging box is fixedly connected with a controller.
[0018] As a further description of the above technical solutions:
[0019] The outer wall of the storage tank is fixedly connected with a fixed plate, the bottom four corners of the fixed plate are fixedly connected with support frames, the bottom four corners of the packaging box are fixedly connected with support columns, and the bottom ends of the plurality of support columns are fixedly connected with rubber pads.
[0020] The utility model has the advantages of the following beneficial effects:
[0021] 1、 in the utility model, the entering air is heated quickly through starting the heater, the moisture on the surface of brown sugar particle is evaporated, and the inside of the storage tank is constructed with a closed air circulation channel through the annular pipe, which surrounds the drying chamber, so that the moisture in the circulating air can be removed in time, then the air flow passes through the cooling disc, the water vapor in the air flow is liquefied by cold, preliminary dehumidification is realized, the air flow of preliminary dehumidification enters the molecular sieve drier, further adsorbs the residual moisture in the air flow, and the dryness of circulating air is ensured, so that the moisture-proof treatment of the inside of the storage tank is realized.
[0022] 2、 in the utility model, the storage tank is sealed by the sealing cover, and the small gap between the sealing cover and the storage tank is filled by the sealing ring, the sealing cover and the storage tank are clamped by the buckle and the fixing piece, then the gas pump is started to inject the gas into the expansion ring, the expansion ring is tightly connected with the fitting groove through expansion, double sealing of the storage tank is realized, and the sealing property of the inside is improved. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 The utility model provides a three -dimensional view of brown sugar particle moistureproof packaging equipment;
[0024] Figure 2 The utility model provides a front view of brown sugar particle moistureproof packaging equipment;
[0025] Figure 3 The utility model provides a structure diagram of the storage barrel of brown sugar particle moistureproof packaging equipment;
[0026] Figure 4 The utility model provides a structure diagram of the annular pipe of brown sugar particle moistureproof packaging equipment;
[0027] Figure 5The utility model provides a split drawing of the sealing mechanism of the red granulated sugar moisture-proof packaging equipment.
[0028] Legend:
[0029] 1, packaging box; 2, sealing mechanism; 201, sealing cover; 202, buckle; 203, fixed part; 204, fit board; 205, fit groove; 206, sealing ring; 207, installation ring; 208, expansion ring; 209, air pump; 210, gas delivery pipe; 211, pressure sensor; 3, storage tank; 4, heating box; 5, heater; 6, air inlet; 7, annular pipe; 8, net cylinder; 9, dehumidification barrel; 10, cooling disc; 11, molecular sieve drier; 12, fan; 13, circulating pipe; 14, humidity sensor; 15, discharge pipe; 16, quantitative valve; 17, discharge pipe; 18, box door; 19, heat dissipation hole; 20, support frame; 21, fixed plate; 22, controller; 23, placing plate; 24, reinforcing plate; 25, support column; 26, rubber pad. DETAILED DESCRIPTION
[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] Reference Figure 1 , Figure 3 and Figure 4The utility model provides a kind of embodiment: brown granulated sugar moisture-proof packaging equipment, including packing box 1 and storage tank 3, the outer wall left side of storage tank 3 is communicated with heating box 4, heating box 4 is fixedly connected with heater 5 at top, electric heating wire is installed in heating box 4, electric heating wire is connected by heater 5, heating wire is made of high-temperature resistant, corrosion-resistant alloy material, can quickly heat the incoming air to predetermined temperature, both can effectively evaporate the moisture on the surface of brown granulated sugar, and also can not affect the quality of brown sugar due to temperature is too high, left side of heating box 4 is provided with air inlet 6, the right side of heating box 4 is communicated with annular pipe 7 and is penetrated through the outer wall of storage tank 3, the outer wall of annular pipe 7 is all communicated with multiple net tubes 8, annular pipe 7 constructs a closed airflow circulation channel, surrounds drying chamber, air inlet 6 connects external drying gas source, the other end of annular pipe 7 is connected to dehumidification device, ensure that the moisture in circulating airflow can be removed in time, one end of annular pipe 7 is penetrated through the inner wall right side of storage tank 3 and is communicated with dehumidification barrel 9, cooling disc 10 is installed at the inner wall bottom of dehumidification barrel 9, molecular sieve drier 11 is installed at the top of cooling disc 10, airflow passes through cooling disc 10, low-temperature refrigerant is passed in cooling disc 10, so that water vapor in airflow liquefies when cold, realize preliminary dehumidification, preliminary dehumidification airflow enters molecular sieve drier 11, further adsorb residual moisture in airflow, ensure the dryness of circulating airflow, the top of dehumidification barrel 9 is communicated with fan 12, one end of fan 12 is communicated with circulation pipe 13, the other end of circulation pipe 13 is communicated at the back of heating box 4, the outer wall left side of storage tank 3 is fixedly connected with humidity sensor 14, multiple humidity sensors 14 are evenly distributed at different height and position of storage tank 3, can real-time, accurately monitor the humidity change of each area in chamber, the top of storage tank 3 is provided with sealing mechanism 2, sealing mechanism 2 is used to seal storage tank 3, the bottom of storage tank 3 is communicated with discharge pipe 15, quantitative valve 16 is installed on the outer wall of discharge pipe 15, the front side of packing box 1 is communicated with discharge pipe 17, the front side of packing box 1 is fixedly connected with placing plate 23;
[0032] Specific, the outer wall of the storage tank 3 left side of a heating tank 4, heating tank 4 top is fixedly connected with a heater 5, heating tank 4 is provided with electric heating wire inside, these electric heating wire through the heater 5 are connected, heating wire is made of high temperature resistant, corrosion resistant alloy material, can quickly heat the incoming air to the predetermined temperature, so that both can effectively evaporate the moisture on the surface of the brown sugar particles, also will not because the temperature is too high to affect the quality of brown sugar, heating tank 4 left side is provided with an air inlet 6, and the right side of the heating tank 4 is through the outer wall of the storage tank 3, and is communicated with an annular pipe 7, the outer wall of the annular pipe 7 is communicated with a plurality of mesh tubes 8, thereby constructing a closed air circulation channel, around the drying chamber, air inlet 6 is connected with the outside drying gas source, and the other end of the annular pipe 7 is connected with the dehumidification device, ensure that the moisture in the circulating air can be removed in time, one end of the annular pipe 7 is through the inner wall right side of the storage tank 3, and is communicated with a dehumidification barrel 9, the inner wall bottom of the dehumidification barrel 9 is installed with cooling disc 10, the top of the cooling disc 10 is installed with molecular sieve desiccant 11, the air flow through the cooling disc 10, because the cooling disc 10 is passed through low temperature refrigerant, the water vapor in the air flow is liquefied by cooling, thereby realizing preliminary dehumidification, the air flow after preliminary dehumidification enters the molecular sieve desiccant, further adsorbs the residual moisture in the air flow, ensures the dryness of the circulating air, the top of the dehumidification barrel 9 is communicated with a fan 12, one end of the fan 12 is communicated with a circulating pipe 13, the other end of the circulating pipe 13 is communicated with the back side of the heating tank 4, the outer wall left side of the storage tank 3 is fixedly connected with a humidity sensor 14, a plurality of humidity sensors 14 are uniformly distributed at different heights and positions of the storage tank 3, can real-time, accurate monitoring of the humidity change of each area in the chamber.
[0033] Referring to Figure 2 , Figure 3 and Figure 5The sealing mechanism 2 comprises a sealing cover 201, the bottom of the sealing cover 201 is fixedly connected to the top of the storage tank 3, the storage tank 3 is sealed by the sealing cover 201, the bottom of the sealing cover 201 is fixedly connected to a fitting plate 204, the outer wall of the fitting plate 204 is provided with a fitting groove 205, the fitting plate 204 is integrally formed with the sealing cover 201, the bottom of the sealing cover 201 is fixedly connected to a sealing ring 206, the sealing ring 206 fills the small gap between the sealing cover 201 and the storage tank 3, the inner wall of the top of the storage tank 3 is fixedly connected to a mounting ring 207, the inner wall of the mounting ring 207 is fixedly connected to an expansion ring 208, the storage tank 3 is fixedly installed with the mounting ring 207, the mounting ring 207 is installed with the expansion ring 208, the outer wall of the sealing cover 201 is fixedly connected with buckles 202 around, the outer wall of the storage tank 3 is fixedly connected with fixing members 203 around, the sealing cover 201 and the storage tank 3 are clamped by the buckles 202 and the fixing members 203, the sealing cover 201 is fastened, the top of the sealing cover 201 is fixedly connected to an air pump 209, one end of the air pump 209 is communicated with a gas conveying pipe 210, the other end of the gas conveying pipe 210 penetrates through the outer wall of the storage tank 3 and is communicated with the outer wall of the expansion ring 208, the air pump 209 is started to inject air into the expansion ring 208, the expansion ring 208 is tightly connected with the fitting groove 205 through expansion, the storage tank 3 is double sealed, the sealing property is improved, the sealing mechanism 2 further comprises a pressure sensor 211, the bottom of the pressure sensor 211 is fixedly connected to the top of the outer wall of the gas conveying pipe 210, the pressure sensor 211 can monitor the air pressure in the expansion ring 208 in real time, and air is injected in real time;
[0034] Specifically, the sealing cover 201 is fixed on the top of the storage tank 3, so as to ensure effective sealing treatment of the storage tank 3. In order to enhance the sealing effect, the bottom of the sealing cover 201 is integrally formed with a fitting plate 204, and a fitting groove 205 is formed on the outer wall of the fitting plate 204. Such a design helps to form a more compact connection between the fitting plate 204 and the sealing cover 201. In addition, the bottom of the sealing cover 201 is also fixedly connected with a sealing ring 206. The sealing ring 206 serves to fill the small gap between the sealing cover 201 and the storage tank 3, further improving the sealing effect. An installation ring 207 is fixedly connected to the inner wall of the top of the storage tank 3, and the inner wall of the installation ring 207 is fixedly connected with an expansion ring 208. Not only can the storage tank 3 and the installation ring 207 be stably fixed and installed, but also the installation of the expansion ring 208 by the installation ring 207 plays a key role. In order to ensure the fastening treatment of the sealing cover 201, the outer wall of the sealing cover 201 is fixedly connected with buckles 202 around the periphery, and the outer wall of the storage tank 3 is also fixedly connected with fixing members 203 around the periphery. Through the mutual clamping of the buckles 202 and the fixing members 203, the sealing cover 201 and the storage tank 3 are firmly connected. The top of the sealing cover 201 is also fixedly connected with an air pump 209. One end of the air pump 209 is communicated with a gas conveying pipe 210, and the other end of the gas conveying pipe 210 penetrates through the outer wall of the storage tank 3 and is communicated with the outer wall of the expansion ring 208. By starting the air pump 209, gas can be injected into the expansion ring 208, so that the expansion ring 208 is tightly connected with the fitting groove 205 through expansion, thereby realizing double sealing of the storage tank 3 and significantly improving the internal sealing performance. The pressure sensor 211 can monitor the air pressure inside the expansion ring 208 in real time, so as to ensure accurate injection of air in real time and maintain the stability and sealing effect of the sealing mechanism.
[0035] With reference to Figure 1 and Figure 2 , the bottom of the placement plate 23 is fixedly connected with a reinforcing plate 24, the rear side of the reinforcing plate 24 is fixedly connected to the front side of the packaging box 1, the right side of the packaging box 1 is rotatably connected with a box door 18, the right side of the box door 18 is provided with a heat dissipation hole 19, the top left side of the packaging box 1 is fixedly connected with a controller 22, and the controller 22 is convenient for simple operation control of the running equipment on the whole device. The outer wall of the storage tank 3 is fixedly connected with a fixed plate 21, the bottom of the fixed plate 21 is fixedly connected with a support frame 20 at four corners, the bottom of the packaging box 1 is fixedly connected with a support column 25 at four corners, and the bottom of the support column 25 is fixedly connected with a rubber pad 26. The whole device is supported by the support column 25 cooperating with the rubber pad 26, and has a certain damping effect.
[0036] Specifically, the bottom of the placing plate 23 is connected with the reinforcing plate 24, and the rear side of the reinforcing plate 24 is fixedly connected to the front side of the packaging box 1. In order to facilitate opening and closing, the right side of the packaging box 1 is rotatably connected with the box door 18 through a hinge. In order to ensure that the heat generated during the operation of the device can be effectively dissipated, the right side of the box door 18 is specially provided with a heat dissipation hole 19. In addition, in order to facilitate the user to simply operate and control the running equipment on the whole device, the top left side of the packaging box 1 is fixedly connected with a controller 22, and the outer wall of the storage tank 3 is also fixedly connected with a fixed plate 21 to ensure its stability and safety. The bottom of the fixed plate 21 is fixedly connected with a support frame 20 at four corners, which enhances the stability of the whole device. In order to ensure the stability of the device, the bottom of the packaging box 1 is fixedly connected with a support column 25 at four corners, and the bottom end of the support column 25 is fixedly connected with a rubber pad 26, which not only provides additional support but also has a certain damping effect, protecting the device from vibration.
[0037] Working principle: first, start the fan 12 to suck external air through the air inlet 6, and start the heater 5 to cooperate with the heating wire to quickly heat the entering air to a predetermined temperature, which can not only evaporate the moisture on the surface of the brown sugar particles, but also will not affect the quality of the brown sugar due to the temperature being too high. The annular pipe 7 constructs a closed air circulation channel, which surrounds the drying chamber. The air inlet 6 is connected with the external drying gas source, and the other end of the annular pipe 7 is connected with the dehumidifying device to ensure that the moisture in the circulating air can be removed in time. Then the air flow passes through the cooling disc 10, and low-temperature refrigerant is circulated in the cooling disc 10, so that the water vapor in the air flow is liquefied when it meets the cold liquid, realizing preliminary dehumidification. The preliminarily dehumidified air flow enters the molecular sieve drying agent 11 to further adsorb the residual moisture in the air flow, ensuring the dryness of the circulating air. At the same time, multiple humidity sensors 14 are uniformly distributed at different heights and positions of the storage tank 3, which can monitor the humidity changes in each area of the chamber in real time and accurately, thereby achieving the moisture-proof treatment of the inside of the storage tank 3. The storage tank 3 is sealed by the sealing cover 201, and the sealing gap between the sealing cover 201 and the storage tank 3 is filled by the sealing ring 206. The sealing cover 201 and the storage tank 3 are clamped by the buckle 202 and the fixing piece 203, realizing the fastening treatment of the sealing cover 201. The air pump 209 is started to inject gas into the expansion ring 208, so that the expansion ring 208 is tightly connected with the fitting groove 205 through expansion, realizing the double sealing of the storage tank 3, improving the sealing performance of the inside. The pressure sensor 211 can monitor the air pressure in the expansion ring 208 in real time, and inject air in real time.
[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, the made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.
Claims
1. A moisture-proof packaging equipment for granulated brown sugar, comprising a packaging box (1) and a storage tank (3), characterized in that: The outer wall left side of the storage tank (3) is communicated with a heating box (4), the top of the heating box (4) is fixedly connected with a heater (5), the left side of the heating box (4) is provided with an air inlet (6), the right side of the heating box (4) penetrates the outer wall of the storage tank (3) and is communicated with an annular pipe (7), the outer wall of the annular pipe (7) is communicated with a plurality of mesh tubes (8), one end of the annular pipe (7) penetrates the inner wall right side of the storage tank (3) and is communicated with a dehumidification barrel (9), the inner wall bottom of the dehumidification barrel (9) is mounted with a cooling disc (10), the top of the cooling disc (10) is mounted with a molecular sieve drying agent (11), the top of the dehumidification barrel (9) is communicated with a fan (12), one end of the fan (12) is communicated with a circulating pipe (13), the other end of the circulating pipe (13) is communicated at the rear side of the heating box (4), the outer wall left side of the storage tank (3) is fixedly connected with a humidity sensor (14), the top of the storage tank (3) is provided with a sealing mechanism (2), and the sealing mechanism (2) is used for sealing treatment of the storage tank (3).
2. The granulated red sugar moisture-proof packaging apparatus according to claim 1, characterized by: The sealing mechanism (2) comprises a sealing cover (201), the bottom of the sealing cover (201) is fixedly connected to the top of the storage tank (3), the bottom of the sealing cover (201) is fixedly connected with a fitting plate (204), the outer wall of the fitting plate (204) is provided with a fitting groove (205), the bottom of the sealing cover (201) is fixedly connected with a sealing ring (206), the inner wall top of the storage tank (3) is fixedly connected with a mounting ring (207), the inner wall of the mounting ring (207) is fixedly connected with an expansion ring (208), the outer wall of the sealing cover (201) is fixedly connected with a buckle (202) around, the outer wall of the storage tank (3) is fixedly connected with a fixing piece (203) around, the top of the sealing cover (201) is fixedly connected with an air pump (209), one end of the air pump (209) is communicated with a gas conveying pipe (210), the other end of the gas conveying pipe (210) penetrates the outer wall of the storage tank (3) and is communicated with the outer wall of the expansion ring (208).
3. The granulated red sugar moisture-proof packaging apparatus according to claim 2, characterized by: The sealing mechanism (2) further comprises a pressure sensor (211), and the bottom end of the pressure sensor (211) is fixedly connected to the outer wall top of the gas conveying pipe (210).
4. The granulated red sugar moisture-proof packaging apparatus according to claim 1, characterized by: The bottom of the storage tank (3) is communicated with a discharge pipe (15), and the outer wall of the discharge pipe (15) is mounted with a quantitative valve (16).
5. The granulated red sugar moisture-proof packaging apparatus according to claim 1, wherein: The front side of the packaging box (1) is communicated with a discharge pipe (17), and the front side of the packaging box (1) is fixedly connected with a placing plate (23).
6. The granulated red sugar moisture-proof packaging apparatus according to claim 5, characterized by: The bottom of the placing plate (23) is fixedly connected with a reinforcing plate (24), and the rear side of the reinforcing plate (24) is fixedly connected to the front side of the packaging box (1).
7. The granulated red sugar moisture-proof packaging apparatus according to claim 1, wherein: The right side of the packaging box (1) is rotatably connected with a box door (18), the right side of the box door (18) is provided with a heat dissipation hole (19), and the top left side of the packaging box (1) is fixedly connected with a controller (22).
8. The granulated red sugar moisture-proof packaging apparatus according to claim 1, characterized by: The outer wall of the storage tank (3) is fixedly connected with a fixed plate (21), the bottom of the fixed plate (21) is fixedly connected with a support frame (20) at four corners, the bottom of the packaging box (1) is fixedly connected with a support column (25) at four corners, and the bottom of a plurality of support columns (25) is fixedly connected with a rubber pad (26).