Plastic packaging box with adjustable containing cavity

Abstract

The utility model relates to the technical field of packaging boxes, in particular to a plastic packaging box with an adjustable containing cavity. According to the technical scheme, the device comprises an outer box body, a lifting box body and a box cover, an inner box body is arranged in the outer box body, the lifting box body is located between the inner box body and the outer box body, and two-way screw rods are symmetrically and rotationally installed at the positions, close to the two sides of the lower surface, in the outer box body; and the positions, close to the two ends, of the outer surfaces of the two bidirectional screws are movably sleeved with nuts, connecting rods are rotationally installed on the upper surfaces of the four nuts, the tail ends of the four connecting rods are rotationally connected to the lower surface of the lifting box body, and the ends, located outside the outer box body, of the bidirectional screws are fixedly connected with rotating knobs. According to the plastic packaging box, the containing cavity in the plastic packaging box can be adjusted according to using requirements so as to adapt to the number of objects needing to be contained, the plastic packaging box can be applied to more scenes, and applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging boxes, in particular to a plastic packaging box with an adjustable cavity. Background Art

[0002] As the name suggests, a packaging box is a box used to package products. It can be classified by material, such as: paper box, iron box, wooden box, cloth box, leather box, acrylic box, corrugated packaging box, PVC box, etc.

[0003] At present, the article cavity inside the commonly used plastic packaging box is fixed. During use, the cavity is adjusted according to the number of articles, which reduces the applicability. Therefore, we propose a plastic packaging box with an adjustable cavity. Utility Model Content

[0004] The purpose of the utility model is to provide a plastic packaging box with an adjustable cavity, which has the advantage of being able to adjust the cavity inside the plastic packaging box according to the needs of use to adapt to the number of items that need to be accommodated, and can be applied to more scenes, thereby improving the applicability, and solving the problem that the item cavity inside the currently commonly used plastic packaging boxes is fixed, and the cavity is adjusted according to the number of items during use, thereby reducing the applicability.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plastic packaging box with an adjustable cavity, comprising an external box body, a lifting box body and a box cover, an internal box body is arranged inside the external box body, and the lifting box body is located between the internal box body and the external box body, bidirectional screws are symmetrically rotatably installed at positions on both sides of the lower surface of the internal part of the external box body, and nuts are movably sleeved on the outer surfaces of the two bidirectional screws near the two ends, connecting rods are rotatably installed on the upper surfaces of the four nuts, and the four ends of the connecting rods are rotatably connected to the lower surface of the lifting box body, and one end of the bidirectional screw located outside the external box body is fixedly connected to a rotating knob.

[0006] Preferably, notches are symmetrically arranged on both sides of the outer surface of the external box body near the upper surface. The two notches are arranged so that the palm can hold the external box body for easy carrying.

[0007] Preferably, the outer surfaces of the two bidirectional screws are fixedly sleeved with synchronous wheels, and the two synchronous wheels are connected by a synchronous belt transmission, so that the two bidirectional screws rotate synchronously, which is beneficial to the lifting and lowering of the lifting box body and also makes the operation of rotating the bidirectional screws more convenient.

[0008] Preferably, a protrusion is provided on the inner wall of the box cover, and a slot is provided on the outer surface of the lifting box body near the upper surface, and the box cover is connected to the lifting box body through the protrusion and the slot.

[0009] Preferably, anti-skid pads are fixedly installed on the lower surface of the external box body near the four corners, and when the external box body is placed on the ground or a table, the anti-skid pads play a role of support and anti-skid.

[0010] Preferably, the upper surface of the box cover is provided with grooves on the box seat near the four corners. When the plastic packaging boxes are stacked, the four anti-slip pads enter the four grooves respectively, which facilitates the stacking of the plastic packaging boxes and makes the plastic packaging boxes more stable after stacking.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model achieves the effect of being able to adjust the internal cavity of the plastic packaging box according to the needs of use to adapt to the number of items to be accommodated by arranging an external box body, an internal box body, a lifting box body, a bidirectional screw, a nut, a connecting rod and a rotating knob. It can be applied to more scenes and improve the applicability. By rotating the bidirectional screw, the nut drives the lifting box body to rise and fall through the connecting rod, so that the cavity formed by the lifting box body and the external box body can be controlled, so that different quantities of items can be accommodated.

[0013] 2. The utility model provides a synchronous belt and a synchronous wheel so that the two bidirectional screws rotate synchronously, which is beneficial to the lifting and lowering of the lifting box body and also makes the operation of rotating the bidirectional screws more convenient.

[0014] 3. The utility model achieves the effect of facilitating the stacking of plastic packaging boxes by arranging grooves and anti-skid pads. When the outer box body is placed on the ground or a table top, the anti-skid pads play a supporting and anti-skid role. When the plastic packaging boxes are stacked, the four anti-skid pads enter the four grooves respectively, which facilitates the stacking of the plastic packaging boxes and makes the plastic packaging boxes more stable after stacking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0017] Figure 3 For this utility model Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0018] Figure 4 It is a partial side view structural schematic diagram of the bidirectional screw of the utility model.

[0019] Figure numerals: 1. Turning knob; 2. Anti-slip pad; 3. Notch; 4. External box body; 5. Lifting box body; 6. Groove; 7. Box cover; 8. Internal box body; 9. Bidirectional screw; 10. Protrusion; 11. Slot; 12. Synchronous belt; 13. Synchronous wheel; 14. Connecting rod; 15. Nut. DETAILED DESCRIPTION

[0020] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1-Figure 4 As shown, the utility model proposes a plastic packaging box with an adjustable cavity, comprising an external box body 4, a lifting box body 5 and a box cover 7. Notches 3 are symmetrically arranged on both sides of the outer surface of the external box body 4 near the upper surface. The arrangement of the two notches 3 makes it easy for the palm to hold the external box body 4 for easy carrying. An internal box body 8 is arranged inside the external box body 4. The internal box body 8 and the external box body 4 are integrally formed, and both are opened at the top, and the lifting box body 5 is located between the internal box body 8 and the external box body 4. The internal box body 8, the external box body 4, the lifting box body 5 and the box cover 7 are all made of plastic. A protrusion 10 is arranged on the inner wall of the box cover 7. A card slot 11 is arranged on the outer surface of the lifting box body 5 near the upper surface, and the box cover 7 is connected to the lifting box body 5 through the protrusion 10 and the card slot 11.

[0022] Bidirectional screws 9 are symmetrically rotatably installed at both sides of the lower surface of the inner part of the external box body 4, and the outer surfaces of the two bidirectional screws 9 are fixedly sleeved with synchronous wheels 13, and the two synchronous wheels 13 are connected by a synchronous belt 12. The synchronous wheels 13 and the synchronous belt 12 make the two bidirectional screws 9 rotate synchronously, which is beneficial to the lifting and lowering of the lifting box body 5, and also makes the operation of rotating the bidirectional screws 9 more convenient, and the outer surfaces of the two bidirectional screws 9 are movably sleeved with nuts 15 near the two ends, and the upper surfaces of the four nuts 15 are rotatably installed with connecting rods 14, and the ends of the four connecting rods 14 are rotatably connected to the lower surface of the lifting box body 5.

[0023] One end of the bidirectional screw 9 located outside the external box body 4 is fixedly connected to a rotating knob 1, and anti-skid pads 2 are fixedly installed near the four corners on the lower surface of the external box body 4, and grooves 6 are provided on the upper surface of the box cover 7 near the four corners. When the external box body 4 is placed on the ground or a table, the anti-skid pads 2 play a supporting and anti-skid role. When the plastic packaging boxes are stacked, the four anti-skid pads 2 respectively enter the four grooves 6, which facilitates the stacking of the plastic packaging boxes and makes the plastic packaging boxes more stable after stacking.

[0024] When the utility model is in use, the box cover 7 is connected to the lifting box body 5 by the protrusion 10 and the card slot 11. When in use, the box cover 7 is taken off, and the bidirectional screw 9 is rotated by turning the knob 1. The two bidirectional screws 9 rotate synchronously through the synchronous wheel 13 and the synchronous belt 12, and the nut 15 drives the lifting box body 5 to rise and fall through the connecting rod 14, so that the cavity formed by the lifting box body 5 and the external box body 4 can be controlled, and different quantities of items can be accommodated to be suitable for more scenarios.

[0025] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A plastic packaging box with an adjustable volume, comprising an outer box body (4), a lifting box body (5) and a box cover (7), characterized in that: An internal box body (8) is arranged inside the external box body (4), and the lifting box body (5) is located between the internal box body (8) and the external box body (4). Bidirectional screw rods (9) are symmetrically rotatably installed at positions on both sides of the lower surface of the external box body (4), and nuts (15) are movably sleeved on the outer surfaces of the two bidirectional screw rods (9) near the two ends. Connecting rods (14) are rotatably installed on the upper surfaces of the four nuts (15), and the ends of the four connecting rods (14) are rotatably connected to the lower surface of the lifting box body (5), and one end of the bidirectional screw rod (9) located outside the external box body (4) is fixedly connected to a rotating knob (1).

2. A plastic packaging box with an adjustable cavity according to claim 1, characterized in that: Notches (3) are symmetrically arranged on both sides of the outer surface of the outer box body (4) near the upper surface.

3. A plastic packaging box with an adjustable cavity according to claim 1, characterized in that: The outer surfaces of the two bidirectional screw rods (9) are both fixedly sleeved with synchronous wheels (13), and the two synchronous wheels (13) are connected by a synchronous belt (12).

4. A plastic packaging box with an adjustable cavity according to claim 1, characterized in that: The inner wall of the box cover (7) is provided with a protrusion (10), and the outer surface of the lifting box body (5) is provided with a slot (11) near the upper surface.

5. The plastic packaging box with an adjustable cavity according to claim 1, characterized in that: Anti-slip pads (2) are fixedly mounted on the lower surface of the external box body (4) near the four corners.

6. The plastic packaging box with an adjustable cavity according to claim 1, characterized in that: The upper surface of the box cover (7) is provided with a box seat with grooves (6) near the four corners.

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