Damp-proof food packaging box for food display

Abstract

The invention discloses a damp-proof food packaging box for food display, and belongs to the field of food packaging boxs.The damp-proof food packaging box for food display comprises a base structure, the base structure comprises a bottom plate, an annular groove is formed in the middle of the bottom plate, an adaptive groove is formed in the middle of the front end of the bottom plate, and a rectangular groove is formed in the middle of the upper end of the bottom plate; a threaded hole is formed in the front portion of the upper end of the bottom plate, an air exhaust structure is fixedly connected to the middle of the adaptive groove, an early warning structure is detachably connected to the middle of the rectangular groove, a storage structure is fixedly connected to the middle of the rear end of the bottom plate, and a limiting structure is fixedly connected to the rear end of the storage structure. According to the food sample taking device, the transparent plastic film can be limited on the upper side of food through the limiting structure, air in the transparent plastic film is pumped out through the air pumping structure, the food can quickly return to a sealed environment after a sample is taken out, and the early warning structure can remind workers when the food is damped.

Description

Technical Field

[0001] The invention relates to the field of food packaging boxes, and more particularly to a moisture-proof food packaging box for food display. Background Art

[0002] A food packaging box is a box that independently packages food. Putting food into the food packaging box can effectively isolate it from the external environment, thereby facilitating the transportation, storage and display of food.

[0003] For food that needs to be displayed for a long time, traditional packaging boxes on the market can only simply package the food. Food in a display environment often needs to be unpacked to take out a small portion of samples for people to taste. Traditional food packaging boxes cannot provide good moisture-proof and sealing protection for the food after being opened once. As a result, once the food is opened once during the display process, it cannot be returned to an air-isolated environment. In addition, it is difficult for staff to quickly detect leaks and damages in the unopened food packaging, which can easily cause the food to become damp and deteriorate. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a moisture-proof food packaging box for food display, which can limit the transparent plastic film on the upper side of the food through a limiting structure, and extract the air inside the transparent plastic film through a vacuum structure, so that the food can be quickly returned to a sealed environment after taking out a small sample, and the early warning structure can remind the staff when the food is damp.

[0005] To solve the above problems, the present invention adopts the following technical solutions.

[0006] A moisture-proof food packaging box for food display, comprising a base structure, the base structure comprising a bottom plate, an annular groove is provided in the middle of the bottom plate, an adapting groove is provided in the middle of the front end of the bottom plate, a rectangular groove is provided in the middle of the upper end of the bottom plate, a threaded hole is provided in the front of the upper end of the bottom plate, an air extraction structure is fixedly connected in the middle of the adapting groove, an early warning structure is disassembled and connected in the middle of the rectangular groove, a storage structure is fixedly connected in the middle of the rear end of the bottom plate, a limited structure is fixedly connected at the rear end of the storage structure, a bolt is threadedly connected in the middle of the threaded hole, both left and right ends of the bottom plate are fixedly connected to limited hinges, the limited hinges are hinged with a cover plate, the air extraction structure comprises a first shell, a first limiting ring is fixedly connected in the middle of the first shell, a first compression spring is placed in the middle of the first shell in front of the first limiting ring, and the front of the first shell A push rod is slidably connected to the middle of the end, a first rubber plug is fixedly connected to the rear end of the push rod, a semicircular sealing strip is fixedly connected to the upper end of the outer wall of the first shell, a second compression spring is placed in the middle of the first shell behind the first limiting ring, a second rubber plug is slidably connected to the middle of the first shell behind the second compression spring, a first air channel is opened at the upper end of the inner wall of the first shell, an air port is opened at the rear end of the first shell, a second shell is fixedly connected to the lower end of the middle of the first shell behind the first limiting ring, a second limiting ring is fixedly connected to the middle of the second shell, a third compression spring is placed on the upper side of the second limiting ring in the middle of the second shell, circular holes are opened at both ends of the upper and lower ends of the second shell, a second air channel is opened at both ends of the inner wall of the second shell, and a third rubber plug is fixedly connected to the middle of the second shell on the upper side of the third compression spring. The transparent plastic film is limited to the upper side of the food by the limiting structure, and the air extraction structure extracts the air inside the transparent plastic film, so that the food can quickly return to the sealed environment after taking out the sample, and the early warning structure can remind the staff when the food is damp.

[0007] Furthermore, the warning structure includes a storage bin, an acrylic plate is fixedly connected to the left half of the upper end of the storage bin, and two plywood is fixedly connected to the other half of the upper end of the storage bin, with a sponge board sandwiched between the two plywood, so that staff can quickly detect when food is in a humid environment.

[0008] Furthermore, the storage structure includes a rectangular frame, a rotating rod is rotatably connected to the middle of the rectangular frame, a transparent plastic film is wrapped around the outer side of the rotating rod, and a strip hole is opened at the upper end of the rectangular frame to allow the transparent plastic film to be stored to avoid contamination.

[0009] Furthermore, the limiting structure includes a U-shaped bracket, a semicircular bracket is fixedly connected to the middle part of the front end of the U-shaped bracket, a semicircular groove is opened in the middle of the semicircular bracket, a U-shaped sealing strip is fixedly connected to the lower end of the U-shaped bracket, and two arc-shaped brackets are fixedly connected to the rear end of the U-shaped bracket. The end of the arc-shaped bracket away from the U-shaped bracket is rotatably connected to a support block, and the support block is fixedly connected to the rectangular frame, so that the transparent plastic film can be limited.

[0010] Furthermore, the inner materials of the semicircular sealing strip and the U-shaped sealing strip are both elastic rubber, and the semicircular sealing strip matches the semicircular groove, and the U-shaped sealing strip matches the annular groove, so that the semicircular sealing strip can seal the semicircular groove, and the U-shaped sealing strip can seal the annular groove.

[0011] Furthermore, the front end of the first air channel is located in front of the first limiting ring, and the lower end of the second air channel is located at the lower side of the second limiting ring, so that the first air channel can guide the airflow into the interior of the first shell, and the second air channel can discharge the gas inside the first shell.

[0012] Furthermore, the longitudinal sections of the first rubber plug and the second rubber plug are the same as the longitudinal cross-sectional area inside the first shell, and the cross-sectional area of ​​the third rubber plug is the same as the cross-sectional area inside the second shell, so that the first rubber plug and the second rubber plug can seal the interior of the first shell, and the third rubber plug can seal the interior of the second shell.

[0013] Furthermore, the width of the transparent plastic film is greater than the annular groove, and an annular block is provided at the front end of the push rod, so that the transparent plastic film can wrap the upper surface of the food and it is convenient for staff to press the push rod.

[0014] Furthermore, anhydrous copper sulfate powder is stored in the middle of the storage bin, and a plurality of small holes are opened in the middle of the clamping plate, so that the staff can judge whether the food is in a humid environment by the color of the copper sulfate powder, and the gas around the food can contact the anhydrous copper sulfate powder.

[0015] Compared with the prior art, the advantages of the present invention are: (1) This solution uses a limiting structure to limit the transparent plastic film on the upper side of the food, and an exhaust structure to extract the air inside the transparent plastic film, so that the food can be quickly returned to the sealed environment after the sample is taken out, and the early warning structure can remind the staff when the food is damp.

[0016] (2) Staff can use the early warning structure to determine whether food is in a humid environment, and the food can be quickly returned to a sealed environment after taking a small sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall stereogram of the idle state of the present invention; Figure 2 It is an overall stereogram of the display state of the present invention; Figure 3 It is an overall stereogram of the transport state of the present invention; Figure 4 It is an overall split stereogram of the present invention; Figure 5 A three-dimensional diagram of the base structure of the present invention; Figure 6 A three-dimensional diagram of the air extraction structure of the present invention; Figure 7 It is a partial half-section stereoscopic view of the air extraction structure of the present invention; Figure 8 for Figure 7 A partial enlarged view of; Fig. 9 It is a schematic diagram of the exhaust state of the exhaust structure of the present invention; Fig.10 It is a schematic diagram of the air extraction state of the air extraction structure of the present invention; Fig.11 It is a partial half-section stereoscopic diagram of the early warning structure of the present invention; Fig.12 It is a partial half-section stereoscopic view of the storage structure of the present invention; Fig.13 It is a three-dimensional diagram of the limiting structure of the present invention; Fig.14 It is a partial half-section three-dimensional view of the limiting structure of the present invention.

[0018] Description of the numbers in the figure: 1. Base structure; 101. Bottom plate; 102. Annular groove; 103. Adapter groove; 104. Rectangular groove; 105. Threaded hole; 2. Air extraction structure; 201. First shell; 202. First limiting ring; 203. First compression spring; 204. Push rod; 205. First rubber plug; 206. Semicircular sealing strip; 207. Second compression spring; 208. First air channel; 209. Air port; 210. Second shell; 211. Second limiting ring; 212. Third compression spring; 213. Round hole; 214, second airway; 215, third rubber plug; 216, second rubber plug; 3, early warning structure; 301, storage bin; 302, acrylic board; 303, plywood; 304, sponge board; 4, storage structure; 401, rectangular frame; 402, rotating rod; 403, transparent plastic film; 404, strip hole; 5, limiting structure; 501, U-shaped bracket; 502, semicircular bracket; 503, semicircular groove; 504, U-shaped sealing strip; 6, bolt; 7, limiting hinge; 8, cover plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of the adapter model component. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1-14A moisture-proof food packaging box for food display includes a base structure 1, the base structure 1 includes a bottom plate 101, an annular groove 102 is opened in the middle of the bottom plate 101, an adapting groove 103 is opened in the middle of the front end of the bottom plate 101, a rectangular groove 104 is opened in the middle of the upper end of the bottom plate 101, a threaded hole 105 is opened in the front of the upper end of the bottom plate 101, an exhaust structure 2 is fixedly connected in the middle of the adapting groove 103, an early warning structure 3 is detachably connected in the middle of the rectangular groove 104, and a fixed connection is provided in the middle of the rear end of the bottom plate 101. There is a storage structure 4, the rear end of the storage structure 4 is fixedly connected to the limited position structure 5, the middle part of the threaded hole 105 is threadedly connected with a bolt 6, the left and right ends of the bottom plate 101 are fixedly connected to the limited position hinge 7, the limited position hinge 7 is hinged with a cover plate 8, the exhaust structure 2 includes a first shell 201, the middle part of the first shell 201 is fixedly connected with a first limit ring 202, the middle part of the first shell 201 is located in front of the first limit ring 202 and a first compression spring 203 is placed, and the middle part of the front end of the first shell 201 is slidably connected with a push rod 2 04, a first rubber plug 205 is fixedly connected to the rear end of the push rod 204, a semicircular sealing strip 206 is fixedly connected to the upper end of the outer wall of the first shell 201, a second compression spring 207 is placed in the middle of the first shell 201 behind the first limiting ring 202, a second rubber plug 216 is slidably connected to the middle of the first shell 201 behind the second compression spring 207, a first air channel 208 is opened at the upper end of the inner wall of the first shell 201, an air port 209 is opened at the rear end of the first shell 201, and a second air channel 208 is opened at the upper end of the inner wall of the first shell 201. The lower end of the second shell 210 is fixedly connected to the rear side of the first limiting ring 202, the middle part of the second shell 210 is fixedly connected to the second limiting ring 211, the middle part of the second shell 210 is located on the upper side of the second limiting ring 211 and a third compression spring 212 is placed, circular holes 213 are provided at the upper and lower ends of the second shell 210, second air channels 214 are provided at the left and right ends of the inner wall of the second shell 210, and the middle part of the second shell 210 is located on the upper side of the third compression spring 212 and is fixedly connected to the third rubber plug 215.

[0023] See also Figure 11-12 The warning structure 3 includes a storage bin 301, an acrylic plate 302 is fixedly connected to the left half of the upper end of the storage bin 301, and two clamping plates 303 are fixedly connected to the upper half of the storage bin 301. A sponge plate 304 is sandwiched between the two clamping plates 303, so that the staff can quickly detect when the food is in a humid environment. The storage structure 4 includes a rectangular frame 401, a rotating rod 402 is rotatably connected to the middle of the rectangular frame 401, and a transparent plastic film 403 is wrapped around the outer side of the rotating rod 402. A strip hole 404 is opened at the upper end of the rectangular frame 401, so that the transparent plastic film 403 can be stored to avoid contamination.

[0024] See also Figure 4-14The limiting structure 5 includes a U-shaped bracket 501, a semicircular bracket 502 is fixedly connected to the middle of the front end of the U-shaped bracket 501, a semicircular groove 503 is opened in the middle of the semicircular bracket 502, a U-shaped sealing strip 504 is fixedly connected to the lower end of the U-shaped bracket 501, and two arc brackets 505 are fixedly connected to the rear end of the U-shaped bracket 501. The end of the arc bracket 505 away from the U-shaped bracket 501 is rotatably connected to a support block 506, and the support block 506 is fixedly connected to the rectangular frame 401, so that the transparent plastic film 403 can be limited. The inner materials of the semicircular sealing strip 206 and the U-shaped sealing strip 504 are both elastic rubber, and the semicircular sealing strip 206 matches the semicircular groove 503, and the U-shaped sealing strip 504 matches the annular groove 102, so that the semicircular sealing strip 206 can seal the semicircular groove 503, and the U-shaped sealing strip 504 can seal the annular groove 102. The front end of the first air channel 208 is located in front of the first limiting ring 202, and the lower end of the second air channel 214 is located at the lower side of the second limiting ring 211, so that the first air channel 208 can guide the airflow into the first shell 201, and the second air channel 214 can discharge the internal gas of the first shell 201.

[0025] See also Figure 5-12 The longitudinal sections of the first rubber plug 205 and the second rubber plug 216 are the same as the longitudinal section area inside the first shell 201, and the cross section of the third rubber plug 215 is the same as the cross section area inside the second shell 210, so that the first rubber plug 205 and the second rubber plug 216 can seal the inside of the first shell 201, and the third rubber plug 215 can seal the inside of the second shell 210. The width of the transparent plastic film 403 is greater than the annular groove 102, and a ring block is provided at the front end of the push rod 204, so that the transparent plastic film 403 can wrap the upper surface of the food, and it is convenient for the staff to press the push rod 204. Anhydrous copper sulfate powder is stored in the middle of the storage bin 301, and a plurality of small holes are provided in the middle of the clamping plate 303, so that the staff can judge whether the food is in a humid environment by the color of the copper sulfate powder, and the gas around the food can contact the anhydrous copper sulfate powder.

[0026] When packaging, the staff first places the food in the middle of the bottom plate 101, pulls the transparent plastic film 403 out of the strip hole 404 to cover the upper surface of the food, and makes the end of the transparent plastic film 403 exceed the front end of the semicircular sealing strip 206, and rotates the arc-shaped bracket 505 along the support block 506, so that the U-shaped sealing strip 504 is inserted into the middle of the annular groove 102, and the semicircular sealing strip 206 is inserted into the semicircular groove 503, at which time the transparent plastic film 403 is limited between the annular groove 102 and the semicircular groove 503; The staff member presses the annular block at the front end of the push rod 204 backward, and the push rod 204 drives the first rubber plug 205 to move backward. At this time, the internal pressure of the first shell 201 increases, and the second rubber plug 216 blocks the air port 209 under the action of the second compression spring 207. At the same time, the air pressure drives the third rubber plug 215 to move downward, and the air in the first shell 201 is discharged from the round hole 213 through the second air passage 214. The annular block at the front end of the push rod 204 is released. Under the action of the first compression spring 203, the first rubber plug 205 moves forward. At this time, the internal pressure of the first shell 201 decreases, and the third rubber plug 215 blocks the second air passage 214 under the action of the third compression spring 212. Under the action of air pressure, the second rubber plug 216 moves forward and no longer blocks the first air passage 208, and the air inside the transparent plastic film 403 enters the first shell 201. The above operation is repeated many times to guide the air between the transparent plastic film 403 and the bottom plate 101 to be completely evacuated; The two cover plates 8 are rotated along the limit hinges 7 to cover the upper side of the bottom plate 101 to protect the food and the transparent plastic film 403 on the upper side of the bottom plate 101; When the food is transported to the platform, the cover plate 8 is rotated in the opposite direction along the limit hinge 7 to display the food on the upper side of the bottom plate 101; When it is necessary to obtain a food sample, the bolt 6 is screwed out of the threaded hole 105, and air enters between the transparent plastic film 403 and the bottom plate 101 through the threaded hole 105. The arc-shaped bracket 505 is rotated in the opposite direction along the support block 506, so that the transparent plastic film 403 is no longer limited. The used transparent plastic film 403 is cut and removed, the food sample is taken out, and the bolt 6 is screwed back into the threaded hole 105. The above operation is repeated to reseal and display the remaining food; When the copper sulfate powder on the lower side of the acrylic plate 302 turns blue or green, it means that the food is in a humid environment and the staff needs to reseal the food. The transparent plastic film 403 can be limited on the upper side of the food by the limiting structure 5, and the air extraction structure 2 can extract the air inside the transparent plastic film 403, so that the food can be quickly returned to the sealed environment after taking out the sample, and the early warning structure 3 can remind the staff when the food is damp.

[0027] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A moisture-proof food packaging box for food display, comprising a base structure (1), characterized in that: The base structure (1) comprises a bottom plate (101), a ring-shaped groove (102) is provided in the middle of the bottom plate (101), an adapting groove (103) is provided in the middle of the front end of the bottom plate (101), a rectangular groove (104) is provided in the middle of the upper end of the bottom plate (101), and a threaded hole (105) is provided in the front of the upper end of the bottom plate (101); The middle of the adapting groove (103) is fixedly connected to an exhaust structure (2), the middle of the rectangular groove (104) is detachably connected to an early warning structure (3), the middle of the rear end of the bottom plate (101) is fixedly connected to a storage structure (4), the rear end of the storage structure (4) is fixedly connected to a limiting structure (5), the middle of the threaded hole (105) is threadedly connected to a bolt (6), the left and right ends of the bottom plate (101) are fixedly connected to limiting hinges (7), and the limiting hinge (7) is hinged to a cover plate (8); The air extraction structure (2) comprises a first shell (201), a first limiting ring (202) is fixedly connected to the middle of the first shell (201), a first compression spring (203) is placed in the middle of the first shell (201) in front of the first limiting ring (202), a push rod (204) is slidably connected to the middle of the front end of the first shell (201), a first rubber plug (205) is fixedly connected to the rear end of the push rod (204), a semicircular sealing strip (206) is fixedly connected to the upper end of the outer wall of the first shell (201), a second compression spring (207) is placed in the middle of the first shell (201) in the rear side of the first limiting ring (202), a second rubber plug (216) is slidably connected to the middle of the first shell (201) in the rear side of the second compression spring (207), and the air extraction structure (2) comprises a first shell (201), ... The first shell (201) has a first air passage (208) at the upper end of the inner wall, and an air port (209) at the rear end of the first shell (201). The lower end of the middle part of the first shell (201) is located behind the first limiting ring (202) and is fixedly connected to a second shell (210). The middle part of the second shell (210) is fixedly connected to a second limiting ring (211). A third compression spring (212) is placed on the upper side of the second limiting ring (211) at the middle part of the second shell (210). The upper and lower ends of the second shell (210) have circular holes (213). The left and right ends of the inner wall of the second shell (210) have second air passages (214). The middle part of the second shell (210) is located on the upper side of the third compression spring (212) and is fixedly connected to a third rubber plug (215).

2. A moisture-proof food packaging box for food display according to claim 1, characterized in that: The early warning structure (3) comprises a storage bin (301), wherein the left half of the upper end of the storage bin (301) is fixedly connected to an acrylic plate (302), and the upper half of the storage bin (301) is fixedly connected to two clamping plates (303), wherein a sponge plate (304) is clamped between the two clamping plates (303).

3. A moisture-proof food packaging box for food display according to claim 1, characterized in that: The storage structure (4) comprises a rectangular frame (401), the middle of the rectangular frame (401) is rotatably connected to a rotating rod (402), the outer side of the rotating rod (402) is wrapped with a transparent plastic film (403), and the upper end of the rectangular frame (401) is provided with a strip-shaped hole (404).

4. A moisture-proof food packaging box for food display according to claim 3, characterized in that: The limiting structure (5) comprises a U-shaped bracket (501), a semicircular bracket (502) is fixedly connected to the middle of the front end of the U-shaped bracket (501), a semicircular groove (503) is provided in the middle of the semicircular bracket (502), a U-shaped sealing strip (504) is fixedly connected to the lower end of the U-shaped bracket (501), two arc-shaped brackets (505) are fixedly connected to the rear end of the U-shaped bracket (501), and a support block (506) is rotatably connected to one end of the arc-shaped bracket (505) away from the U-shaped bracket (501), and the support block (506) is fixedly connected to the rectangular frame (401).

5. A moisture-proof food packaging box for food display according to claim 4, characterized in that: The inner materials of the semicircular sealing strip (206) and the U-shaped sealing strip (504) are both elastic rubber, the semicircular sealing strip (206) matches the semicircular groove (503), and the U-shaped sealing strip (504) matches the annular groove (102).

6. A moisture-proof food packaging box for food display according to claim 1, characterized in that: The front end of the first air channel (208) is located at the front side of the first limiting ring (202), and the lower end of the second air channel (214) is located at the lower side of the second limiting ring (211).

7. A moisture-proof food packaging box for food display according to claim 1, characterized in that: The longitudinal sections of the first rubber plug (205) and the second rubber plug (216) have the same longitudinal cross-sectional area as the interior of the first shell (201), and the cross-sectional area of ​​the third rubber plug (215) has the same cross-sectional area as the interior of the second shell (210).

8. A moisture-proof food packaging box for food display according to claim 3, characterized in that: The width of the transparent plastic film (403) is greater than the annular groove (102), and an annular block is provided at the front end of the push rod (204).

9. A moisture-proof food packaging box for food display according to claim 2, characterized in that: Anhydrous copper sulfate powder is stored in the middle of the storage bin (301), and a plurality of small holes are opened in the middle of the clamping plate (303).

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