CN214566878U

CN214566878U - Protective packaging box

Info

Publication number: CN214566878U
Application number: CN202120547661.1U
Authority: CN
Inventors: 井伟讷
Original assignee: Dongguan Bosen Packaging Products Co ltd
Current assignee: Dongguan Bosen Packaging Products Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-11-02
Anticipated expiration: 2031-03-16

Abstract

The utility model belongs to the technical field of the packing, a protection packing box is related to, including the opening box towards one side, the interior bottom surface of box is the loading end, the opening of box is the access & exit, access & exit department covers there is the upset wall, the bottom of upset wall is articulated with the bottom of access & exit and makes the upset wall can overturn to ground, the top surface when the upset wall overturns to ground is the loading and unloading charge level of slope, the high-end and the loading end of loading and unloading charge level link up, be provided with the mounting between upset wall and the box in order to fix the upset wall before the upset. The box includes base, a plurality of lateral wall and roof, and the base includes loading board and the stabilizer blade under the loading board, presss from both sides between stabilizer blade and the loading board and is equipped with the cushion layer. The surface of the side wall far away from one side of the entrance is provided with a back opening in a penetrating way, the back opening is positioned at the bottom of the corresponding side wall, the back opening is covered with a cover plate, and the cover plate is hinged with the corresponding side wall to open or close the back opening. This application can improve stationarity and convenience in the use such as packing carton loading and unloading.

Description

Protective packaging box

Technical Field

The application relates to the field of packaging, in particular to a protective packaging box.

Background

In the case of precision instruments and equipment, packaging boxes, especially wooden packaging boxes, are inevitably used during the transportation process. Wooden packing box not only has the structural strength of preferred, and is slight to precision instruments equipment wearing and tearing moreover to can protect precision instruments equipment, avoid the collision that probably takes place in the handling effectively, the aspect such as function, the precision of guarantee precision instruments equipment is not influenced.

The packing box is a relatively closed box body, and the bottom surface of the inner space of the packing box is a bearing surface for placing precision instrument equipment. Regardless of the size of the packing box, the carrying surface of the packing box is usually higher than the ground by a certain distance, and especially when the height of the base of the packing box is higher, the carrying surface may be more than fifteen centimeters away from the ground, which makes the operation inconvenient during the process of loading or removing the precision instrument into or from the packing box to the ground. Particularly, large-scale precision instruments and equipment are generally heavy, which can increase the difficulty of loading and unloading operations, and more importantly, if the precision instruments and equipment are accidentally dropped, the precision instruments and equipment can be damaged and cannot be used.

SUMMERY OF THE UTILITY MODEL

In order to improve the stability in the use such as packing carton loading and unloading material, this application provides a protection packing box.

The application provides a protection packing box adopts following technical scheme:

the utility model provides a protective packaging box, includes that the opening is towards the box of one side, and the interior bottom surface of box is the loading end, and the opening of box is the access & exit, and access & exit department covers has the upset wall, and the bottom of upset wall is articulated with the bottom of access & exit and makes the upset wall can overturn to ground, and the top surface when the upset wall overturns to ground is the loading and unloading charge level of slope, and the high-end and the loading end of loading and unloading charge level link up, is provided with the mounting between upset wall and the box in order to fix the upset wall before the upset.

By adopting the technical scheme, when the precision instrument equipment needs to be carried, the turnover wall is turned to the ground to form the loading and unloading platform, then the precision instrument equipment is pushed into the box body along the loading and unloading surface and is arranged on the loading surface, then the turnover wall is turned back to cover the access and exit of the box body, the turnover wall is fixed by the fixing piece, and then the carrying can be carried out. During the transport, this packing box can carry out the protection of preferred to precision instruments equipment. And after the precision instrument is conveyed to a destination, the turnover wall is turned over to the ground again, and the precision instrument is moved out of the box body along the loading and unloading level and gradually moved to the ground.

The utility model provides an above-mentioned packing box through setting up the lateral wall into the convertible, with the lateral wall multi-functional, the lateral wall can not only be used for the maintenance of precision instruments handling, moreover, can also act as loading and unloading material platform during loading and unloading material for precision instruments can both be more steady when pushing and shifting out the box, alleviates the degree of difficulty of loading and unloading material operation, reduces jolting and the careless possibility that takes place to fall of precision instruments.

Furthermore, because the packing box of this application can form the loading and unloading platform automatically during loading and unloading for precision instrument equipment can steadily load and unload the material, so, to the high requirement greatly reduced of loading end, the loading end need not to set up very low, highly can suitably heighten. This makes, in the manufacturing process of packing box, can thicken the bottom of box to make the box possess better shock attenuation effect, promote the stability in the precision instruments equipment transportation.

Optionally, an inclined transition surface is arranged at the overturning free end of the loading and unloading surface, the gradient of the transition surface is greater than that of the loading and unloading surface, the high end of the transition surface is connected with the corresponding position of the loading and unloading surface, and the low end of the transition surface extends to the overturning free end of the loading and unloading surface.

In order to ensure the protection capability of the packaging box, the manufacturing plates are not very thin, so that when the turnover plate is turned to the ground, a certain distance is reserved between the lower end of the loading and unloading material surface and the ground. By adopting the technical scheme, the transition surface is arranged at the lower end of the loading and unloading surface, so that the lower end of the turnover plate is thinned, the fall between the lower end of the loading and unloading surface and the ground is further reduced, and the stability of the precision instrument when the precision instrument enters the loading and unloading surface and moves out from the loading and unloading surface is further improved. Meanwhile, the transition surface is only arranged at the overturning free end of the overturning plate, so that most of the area of the overturning plate can still keep the original thickness, and the better protection capability of the overturning plate is kept.

Optionally, the loading and unloading surface is fixedly provided with first limiting strips along two sides of the loading and unloading direction, and the top surfaces of the first limiting strips are higher than the loading and unloading surface.

Through adopting above-mentioned technical scheme, on the one hand, the medial surface of spacing can carry on spacingly to the precision instruments equipment through loading and unloading charge level, further strengthens its removal stationarity, and on the other hand, first spacing can play the firm effect of enhancement to the upset wall, improves the protection support capacity of upset wall.

Optionally, a supporting member is arranged at the bottom of the turnover wall when the turnover wall is turned over to the ground, the top of the supporting member is fixedly connected with the bottom of the turnover wall, and the bottom of the supporting member is abutted to the ground.

Through adopting above-mentioned technical scheme, during loading and unloading material, support piece can play the supporting role of preferred to the upset wall, further improves the stationarity during loading and unloading material.

Optionally, the box body includes a base, a plurality of side walls surrounding the base and a top wall covering the side walls, and the base and the side walls, the adjacent side walls and the top wall are all inserted.

By adopting the technical scheme, the box body is formed by splicing a plurality of plates, so that the box body is convenient to manufacture. Moreover, because the main effect of packing box is the protection, so, it is not high to the connection fastening degree requirement between the panel, adopts the mode of pegging graft to satisfy the protection demand of packing box already, makes the concatenation equipment of box comparatively convenient moreover. The box can be stored and transported with the panel form before the concatenation equipment, can splice the equipment by oneself after the user buys panel, makes the use of packing box more convenient from this.

Optionally, the bearing surface is the top surface of the base, a second limiting strip is fixedly arranged on the bearing surface except the periphery of the entrance, the top surface of the second limiting strip is higher than the bearing surface, and an isolation space is formed between the inner side of the second limiting strip and the adjacent side wall.

By adopting the technical scheme, the precision instrument equipment is arranged on the bearing surface and positioned in the area surrounded by the second limit strip, and the existence of the isolation space can reduce the frictional contact between the precision instrument and the inner surface of the side wall, so that the abrasion to the precision instrument equipment is further reduced.

Optionally, a non-slip mat is fixedly attached to the bearing surface on the inner side of the second limiting strip.

Through adopting above-mentioned technical scheme, precision instruments equipment settles behind the loading end, is located on the slipmat, utilizes the frictional force of slipmat, can help avoiding precision instruments equipment displacement to appear, further improves the stability in the precision instruments equipment handling.

Optionally, a hook is fixedly mounted at the top of the second limiting strip.

Through adopting above-mentioned technical scheme, the packing box that bears the weight of precision instruments equipment can suitably demolish roof or lateral wall in handling to hoist the packing box through the couple and carry, further improve the practicality of the packing box of this application. Moreover, the hooks are arranged on the base, the connection stability between the base and the side wall, between the adjacent side walls and between the side wall and the top wall does not need to be enhanced, and the insertion connection can still be adopted.

Optionally, the base includes the loading board on upper portion and is located the stabilizer blade under the loading board, and the stabilizer blade includes first splint, second splint and the cushion layer that the fixation clamp was located between first splint and the second splint, first splint and loading board fixed connection, second splint and ground butt.

Through adopting above-mentioned technical scheme, set up the base into the form of similar tray, the transport is assisted to convenient to use fork truck, further improves the practicality of packing box. And the setting of cushion layer can carry out effectual buffering to the precision instruments and equipment that is located above the base, alleviates the jolt that the transportation probably takes place from this. Meanwhile, the buffer cushion layer can absorb the acting force borne by the base and the whole packaging box, so that the structural strength of the base and the packaging box is improved.

Optionally, a back opening is formed in the surface of the side wall far away from the access opening, the back opening is located at the bottom of the corresponding side wall, a cover plate covers the back opening, the cover plate is hinged to the corresponding side wall to open or close the back opening, and a fixing piece is arranged between the cover plate and the corresponding side wall to fix the cover plate when the cover plate is closed.

Generally speaking, the appearance of packing box needs and the precision instruments equipment phase-match that waits to carry, and some precision instruments equipment are comparatively large-scale heavy, and therefore, the volume of the packing box that corresponds is also great, and horizontal depth and vertical depth are all great, and this will add the degree of difficulty of loading and unloading heavily. This application sets up back of the body mouth through adopting above-mentioned technical scheme, the lateral wall bottom of keeping away from the access & exit, and during the loading, can pass back of the body mouthful with instruments such as rope and connect in precision instrument equipment, and the accurate instrument equipment of pulling is loaded with help, and during unloading, can pass back of the body mouthful with the push rod and promote precision instrument equipment and unload with help for need not demolish roof and lateral wall and just can convenient loading and unloading material, thereby further promote the use convenience of packing box.

Furthermore, in order to further improve the stability of the precision instruments during the transportation process, the precision instruments may be temporarily fixed in the packaging box, for example, by bolts passing through holes of the precision instruments and then screwed into the carrying plate. In this way, the fixing operation near the doorway is easy, but the fixing operation far from the doorway and the corner of the ceiling wall cannot be performed. And the packing box of this application can carry out this fixed operation through the back of the body mouth, has further promoted the practicality of packing box from this.

To sum up, the application comprises the following beneficial technical effects:

1. the side wall is arranged in a turnover mode, the side wall is multifunctional, and the turnover type multifunctional precision instrument and device can be used for maintenance in the carrying process of precision instruments and devices and also can serve as a material loading and unloading platform during material loading and unloading, so that the precision instruments and devices can be more stable when being pushed into and moved out of the box body;

2. the support piece and the first limiting strip are arranged on the turnover wall, so that the structural strength of the turnover wall is effectively improved;

3. according to the application, the second limiting strip is arranged on the bearing surface to form an isolation space, so that the friction and the abrasion between a precision instrument and the inner surface of the side wall can be reduced;

4. this application sets up the cushion layer on the base, can carry out effectual buffering to the precision instruments equipment that is located above the base, alleviates jolting of transportation. Meanwhile, the cushion layer can absorb the acting force on the base and the whole packing box, so that the structural strength of the base and the packing box is improved;

5. this application sets up the back of the body mouth through the lateral wall bottom of keeping away from the access & exit, and the use of tools such as rope, push rod during the loading and unloading material of being convenient for also is convenient for carry out fixed operation to the position that the access & exit was kept away from to precision instruments equipment simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a protective packaging box according to an embodiment of the present application.

Fig. 2 is an exploded view of the case structure of fig. 1.

Fig. 3 is a partially enlarged schematic view of fig. 2.

Fig. 4 is a schematic view of the structure of fig. 1 from another perspective.

Description of reference numerals: 1. a base; 11. a carrier plate; 111. a bearing surface; 112. a second limit strip; 113. hooking; 114. a non-slip mat; 115. interference prevention steps; 12. a support leg; 121. a first splint; 122. a cushion layer; 123. a second splint; 2. a side wall; 21. a back opening; 22. a cover plate; 23. a third limiting strip; 3. a top wall; 4. an entrance and an exit; 5. a roll-over wall; 51. loading and unloading the charge level; 52. a first limit strip; 53. a transition surface; 54. a support member; 61. cutting; 611. a slot; 62. inserting a tongue; 63. and (5) locking.

Detailed Description

The present application is described in further detail below.

The embodiment of the application discloses a protection packing box, refer to fig. 1, including the box, the box includes base 1, is located a plurality of lateral walls 2 on base 1 and covers roof 3 on a plurality of lateral walls 2. The opening of the box body is an access 4, and a turnover wall 5 is hinged at the access 4. The bottom of the side wall 2 far away from the doorway 4 is provided with a back opening 21 (see fig. 4), and a cover plate 22 is hinged at the back opening 21.

The whole body of the box body in the embodiment is of a cuboid box-shaped structure. Referring to fig. 2, the base 1 is located at the bottom of the box body, and is integrally in a tray type structure, and includes a bearing plate 11 and a supporting leg 12 located below the bearing plate 11.

In this embodiment, the carrier plate 11 is a horizontally disposed rectangular parallelepiped plate structure, and the top surface is a carrier surface 111. In order to reduce the interference to the turning action of the subsequent turning wall 5, the edge of the loading plate 11 at the entrance 4 is provided with an interference prevention step 115, and the interference prevention step is a step-shaped step which is formed downwards along the loading surface 111.

The bearing surface 111 is provided with a second limit strip 112. In this embodiment, the second limiting strip 112 is a long strip-shaped plate structure, and is disposed around three edges of the carrying surface 111, and the edges around the carrying surface 111 are not all disposed around, so as to leave a gap for facilitating loading and unloading. An isolation space is formed between the inner side surface of the second limiting strip 112 and the inner surface of the corresponding side wall 2, so that the inner surface of the side wall 2 is prevented from wearing precision instrument equipment. The top surface of the second limiting strip 112 is higher than the bearing surface 111, and the bottom surface is fixedly connected with the bearing surface 111, and the fixing manner may be bonding, screws, and the like. The top surface of the second limit strip 112 is fixedly provided with a hook 113, which is convenient for matching with lifting operation. The bearing surface 111 inside the second limiting strip 112 is fixedly attached with the anti-slip pad 114 to avoid the sliding displacement of the precision instrument, and the position and the size of the anti-slip pad 114 can be set according to the actual situation of the precision instrument to be carried.

In this embodiment, three support legs 12 are provided below the loading plate 11, the three support legs 12 are arranged at intervals along the width direction of the loading plate 11, and an interval space is formed between adjacent support legs 12, so that the base 1 is in a tray shape, and is convenient to use in cooperation with a forklift. The whole of each support leg 12 is a rectangular parallelepiped strip-shaped structure horizontally placed, the length direction of each support leg is parallel to the length direction of the bearing plate 11, and the support legs comprise a first clamping plate 121, a second clamping plate 123 and a cushion layer 122 fixedly clamped between the first clamping plate 121 and the second clamping plate 123. The first clamp plate 121 is fixedly connected to the bottom surface of the bearing plate 11, and the second clamp plate 123 abuts against the ground. The cushion layer 122 can be made of EPP, EPE, EVA, etc., and has good cushion effect and certain support strength. The fixed connection among the bearing plate 11, the first clamping plate 121, the cushion layer 122 and the second clamping plate 123 can adopt bonding and pressing modes, and can also be fixed by a penetrating bolt to improve the connection stability.

Three vertical side walls 2 are arranged on the base 1, the other side surface is in an opening shape, namely an access 4, and the access 4 is positioned on one side of a gap surrounded by the second limiting strip 112 and used for loading and unloading materials. In this embodiment, the side wall 2 is a rectangular parallelepiped plate, and the length direction is vertically arranged.

Referring to fig. 3, the side wall 2 is inserted into the base 1 to facilitate the installation operation, and the insertion takes the form of an insertion strip 61 with an insertion slot 611 and an insertion tongue 62. The insertion strip 61 is a long strip with an L-shaped cross section, and is fixedly wrapped on the bottom of the three edges of the bearing plate 11 except the access 4, the L-shaped inner surface of the insertion strip 61 is fixedly attached to the bottom surface and the side end surface of the bearing plate 11, and the fixing mode can be pressing, bonding, screws and the like. A plurality of slots 611 are arranged along the length direction of the insert 61, and the slots 611 are formed by protruding the L-shaped vertical wall of the insert 61 to the side far away from the bearing plate 11. The bottom end of the side wall 2 is provided with a tongue 62 correspondingly adapted to the slot 611, and in order to improve the fastening degree of the insertion, the bottom of the tongue 62 inserted into the slot 611 can be properly bent towards the side far away from the side wall 2, so that the part of the tongue 62 entering the slot 611 is more tightly abutted against the vertical inner wall of the slot 611 far away from the bearing plate 11.

The top ends of the three side walls 2 are covered with the adaptive horizontal top wall 3, the top ends of the side walls 2 are inserted with the peripheral end surfaces of the top wall 3 and the vertical side ends of the adjacent side walls 2, and the insertion type can also adopt the form of an insertion strip 61 with a slot 611 and an insertion tongue 62, so that the operation is convenient.

Referring to fig. 4, a through back opening 21 is formed in the side wall 2 away from the doorway 4. In this embodiment, the back openings 21 are rectangular openings, and two back openings 21 are provided, and the two back openings 21 are respectively located at two corners of the bottom of the side wall 2. Each back opening 21 is covered with a corresponding cover plate 22. One end of the cover plate 22 is hinged to the edge of the back opening 21 to open or close the back opening 21, and a latch 63 is disposed between the cover plate 22 and the sidewall 2 to facilitate the fixing of the cover plate 22, and the latch 63 may be in the form of a latch. During loading, a tool such as a rope may be attached to the precision instrument through the back port 21, pulling the precision instrument to assist loading, and during unloading, a push rod may be pushed through the back port 21 to assist unloading. Furthermore, the precision instruments and equipment at the inner corners of the packaging box can be further fixed through the space at the back opening 21, for example, bolts are used to pass through holes existing on the precision instruments and equipment, and then the precision instruments and equipment are screwed on the bearing plate 11, so that the stability of the precision instruments and equipment is further improved.

Referring back to fig. 1, a third stop strip 23 is fixedly mounted on each of the two side walls 2 near the doorway 4. In this embodiment, the third position-limiting strip 23 is a vertically arranged long plate-like structure and is located near the doorway 4. The third limiting strip 23 not only can strengthen the structure of the side wall 2 where the third limiting strip is located, but also can be used for being abutted with the first limiting strip 52 to be described later so as to improve the stability of the turnover wall 5 to be described later.

The access opening 4 is covered with a suitable turning wall 5. The lock catches 63 are installed between the two side ends of the turning wall 5 and the corresponding side walls 2, and the lock catches 63 may be in the form of buckles so as to facilitate the fixing of the turning wall 5 when closing the entrance 4. The bottom end of the turning wall 5 is hinged to the edge of the bearing surface 111, and the hinged shaft is located in the horizontal plane, so that the turning wall 5 can be turned to the ground to form an inclined loading and unloading platform. The top surface of the turnover wall 5 when turned over to the ground is a loading and unloading surface 51. The loading and unloading surface 51 is an inclined rectangular plane, the length direction is the loading and unloading direction, and the high end of the loading and unloading direction is connected with the loading surface 111.

The loading and unloading surface 51 is provided with a first limit strip 52 along the loading and unloading direction. The first position-limiting strip 52 is a long-strip plate-shaped structure, the length direction of the first position-limiting strip is consistent with the material loading and unloading direction, the top surface of the first position-limiting strip is higher than the material loading and unloading surface 51, and the bottom surface of the first position-limiting strip is fixedly connected with the material loading and unloading surface 51 by adopting bonding, screws and the like. When the roll-over panel is turned over to cover the doorway 4, the surface of the first stopper strip 52 remote from the loading/unloading surface 51 abuts against the outer surface of the third stopper strip 23, whereby the stability of the roll-over panel can be further improved.

The loading and unloading level 51 is provided at the free end of the turn with an inclined transition surface 53. The transition surface 53 has a slope greater than the slope of the loading and unloading surface 51, with the high end engaged with the corresponding portion of the loading and unloading surface 51 and the low end extending to the free end of the loading and unloading surface 51. The transition surface 53 is equivalent to a thinning treatment of the turnover wall 5 at the turnover free end, and can further reduce the height difference between the turnover free end of the turnover wall 5 and the ground, thereby further improving the stability of loading and unloading.

The bottom of the roll-over wall 5 when it is rolled over to the ground is provided with a support 54. In this embodiment, two supporting members 54 are provided, and the two supporting members 54 are arranged at intervals in the material loading and unloading direction. Each support member 54 is in the shape of a long bar, the length direction of which is the same as the width direction of the turning wall 5, the top surface of which is fixedly connected with the bottom surface of the turning wall 5, and the bottom surface of which is abutted against the ground. The fixing means between the support 54 and the upturned wall 5 may be adhesive, screws, etc.

Regarding the material aspect, the box body, the turning wall 5, the first limiting strip 52, the second limiting strip 112, the third limiting strip 23 and the like of the present embodiment can adopt plywood, the structural strength meets the use requirement, the cost is low, the processing is easy, the inserting strip 61 and the inserting tongue 62 can adopt stainless steel, the structural strength is high, and the anti-skid mat 114 can adopt rubber.

The implementation principle of a protection packing box of this application embodiment does: referring to fig. 1 and 4, when the precision instrument needs to be transported, the turnover wall 5 is turned over to the ground, the cover plate 22 at the back opening 21 is opened, and the precision instrument is pushed into the box along the loading and unloading surface 51 by pulling the rope, and is placed on the loading surface 111. Thereafter, the precision instrument location may be further secured by bolts through the back opening 21. Then, the transfer can be performed by turning the turning wall 5 back to cover the entrance 4 of the box body and fixing it. During the transport, this packing box can carry out the protection of preferred to precision instruments equipment, and buffer cushion 122 plays the absorbing effect of buffering. After the precision instrument is conveyed to a destination, the turnover wall 5 is opened again to turn over to the ground, the cover plate 22 is opened, and the precision instrument is moved out of the box body along the loading and unloading surface 51 and gradually moved to the ground by matching with the pushing of the back opening 21, so that the precision instrument is stable and convenient.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A protective packaging box is characterized in that: including the opening towards the box of one side, the interior bottom surface of box is loading face (111), the opening of box is access & exit (4), access & exit (4) department covers has upset wall (5), the bottom of upset wall (5) is articulated with the bottom of access & exit (4) makes upset wall (5) can overturn to ground, the top surface when upset wall (5) overturn to ground is loading and unloading charge level (51) of slope, the high-end and loading face (111) of loading and unloading charge level (51) link up, be provided with the mounting between upset wall (5) and the box in order to fix upset wall (5) before the upset.

2. A protective packaging case according to claim 1, characterised in that: an inclined transition surface (53) is arranged at the overturning free end of the loading and unloading surface (51), the gradient of the transition surface (53) is greater than that of the loading and unloading surface (51), the high end of the transition surface (53) is connected with the corresponding position of the loading and unloading surface (51), and the low end of the transition surface (53) extends to the overturning free end of the loading and unloading surface (51).

3. A protective packaging case according to claim 1, characterised in that: the loading and unloading device is characterized in that first limiting strips (52) are fixedly arranged on two sides of the loading and unloading surface (51) along the loading and unloading direction, and the top surfaces of the first limiting strips (52) are higher than the loading and unloading surface (51).

4. A protective packaging case according to claim 1, characterised in that: the bottom of the turnover wall (5) when the turnover wall is turned to the ground is provided with a support piece (54), the top of the support piece (54) is fixedly connected with the bottom of the turnover wall (5), and the bottom of the support piece (54) is abutted to the ground.

5. A protective packaging case according to claim 1, characterised in that: the box includes base (1), encloses a plurality of lateral walls (2) of establishing on base (1) and covers roof (3) on a plurality of lateral walls (2), is pegged graft between base (1) and lateral wall (2), between adjacent lateral wall (2), between lateral wall (2) and roof (3).

6. A protective packaging case according to claim 5, characterised in that: the bearing surface (111) is the top surface of the base (1), the periphery of the bearing surface (111) except the access opening (4) is fixedly provided with a second limiting strip (112), the top surface of the second limiting strip (112) is higher than the bearing surface (111), and an isolation space is formed between the inner side of the second limiting strip (112) and the adjacent side wall (2).

7. A protective packaging case according to claim 6, characterised in that: and a non-slip mat (114) is fixedly attached to the bearing surface (111) on the inner side of the second limiting strip (112).

8. A protective packaging case according to claim 6, characterised in that: and a hook (113) is arranged at the top of the second limiting strip (112).

9. A protective packaging case according to claim 5, characterised in that: the base (1) comprises a bearing plate (11) on the upper portion and a supporting leg (12) located below the bearing plate (11), the supporting leg (12) comprises a first clamping plate (121), a second clamping plate (123) and a buffer cushion layer (122) fixedly clamped between the first clamping plate (121) and the second clamping plate (123), the first clamping plate (121) is fixedly connected with the bearing plate (11), and the second clamping plate (123) is abutted to the ground.

10. The protective packaging box according to any one of claims 1 to 9, characterized in that: keep away from lateral wall (2) of access & exit (4) one side run through on the surface and seted up back of the body mouth (21), back of the body mouth (21) are located the bottom that corresponds lateral wall (2), back of the body mouth (21) department covers has apron (22), apron (22) with correspond lateral wall (2) articulated in order to open or close back of the body mouth (21), be provided with the mounting between apron (22) and the corresponding lateral wall (2) in order to fix apron (22) when closing.