CN110304327A - packing box - Google Patents

Abstract

The present invention relates to packing boxes, belong to packing technique field, including the shell with regular hexahedron shape and for the fixed required product packed and to the liner of product damping, packing box is made using corrugated paper completely, by folding and mutually the modes such as clamping are plugged to fix and keep pack shape, glutinous mouth only one, glue usage amount is seldom, more environmentally friendly.Fixation pressure transmitter, damage caused by preventing pressure transmitter during transportation due to colliding are used for by setting liner.Pressure transmitter and related accessory separation are put by setting liner, placed straggly orderly.

Description

packing box

technical field

The invention belongs to the technical field of packaging, in particular to a packaging box.

Background technique

Pressure transmitter is the most commonly used sensor in industrial practice. It is widely used in various industrial automatic control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automatic control, aerospace, military industry, petrochemical, oil wells, electric power, and ships. , machine tools, pipelines and many other industries. Pressure transmitters are generally packaged in regular boxes for transportation, but as a precision instrument, pressure transmitters have high requirements for shock absorption in the box, and ordinary boxes cannot meet the corresponding shock absorption requirements. Moreover, as domestic calls for protecting the environment, caring for the earth, and saving resources are getting higher and higher, the requirements for product packaging in the domestic market are becoming more and more stringent. Harmless, pollution-free, and recyclable environmentally friendly packaging plays a pivotal role in commodity trade. At present, in order to reduce the cost, the packaging boxes of pressure transmitters on the market use a lot of glue and other materials to glue the cardboard cut into appropriate sizes, which causes a lot of pollution. At the same time, in order to damp the pressure transmitter, a large amount of foam and other buffers are filled in the packaging box, which not only wastes resources, but also pollutes the environment.

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a packaging box that can perform a better shock-absorbing function during the transportation of the pressure transmitter.

In order to achieve the above object, the present invention adopts the following technical solutions:

Packing box, including shell and liner,

shell, having a regular hexahedron shape, for storing and transporting items;

an upper opening formed on one surface of the housing such that an item is inserted into the housing through the upper opening;

an upper left flap and an upper right flap extending in opposite directions from the left and right edges of the upper opening for covering the upper opening;

the upper back flap, extending from the rear edge of the upper opening, is folded to the upper surface of the upper left flap and the upper right flap;

an insertion flange extending from the front end of the upper rear flange and inserted into the front edge of the upper opening;

The locking jack is opened in the center of the connection between the insertion flange and the upper rear flange;

The locking flange extends from the middle of the front edge of the upper opening and is inserted into the locking socket for locking the inserted flange;

The inner liner is closely attached to the inner wall of the shell and the height is lower than the height of the shell, and is used to fix the product to be packaged and absorb shock for the product.

The packaging box is entirely made of corrugated paper, which is fixed and maintains the shape of the packaging box by folding and inserting each other. There is only one sticky opening, and the amount of glue used is very small, which is more environmentally friendly. The inner liner is used to fix the pressure transmitter, so as to prevent the pressure transmitter from being damaged due to collision during transportation. By setting the lining, the pressure transmitter and related accessories are separated and arranged in a random and orderly manner.

Preferably, the insertion flange has a width corresponding to the width of the upper opening.

Preferably, the locking flange has a width corresponding to the width of the locking socket.

Preferably, first cutouts are formed on both sides of the connection between the insert flange and the upper rear flange, and second cutouts are formed on the inner edge of the first cutout. This setting makes the insertion flange less labor-saving when folding, and at the same time avoids damage to the upper rear flange and the insertion flange during the folding process.

Preferably, the second cut is perpendicular to the first cut.

Preferably, a pair of third slits are formed at the connection between the two side edges of the locking flange and the front edge of the upper opening, and the depths of the third slits are consistent. This design allows the locking flange to have a greater degree of freedom, which can be avoided when the insertion flange is inserted into the front edge of the upper opening, preventing it from affecting the insertion process; damage to the front plate.

Preferably, the housing also has a lower opening;

a lower opening formed on the other surface of the housing and opposite to the upper opening;

a lower left flap and a lower right flap extending in opposite directions from the left and right edges of the lower opening for covering the lower opening;

a lower rear flap, extending from the rear edge of the lower opening, folded to the lower surface of the lower left flap and the lower right flap;

The lower front flap extends from the front edge of the lower opening, is folded onto the lower surfaces of the upper left flap and the upper right flap, and is mated with the lower right flap.

Preferably, the lining includes a lower backing plate, support plates on both sides of the lower backing plate, and an upper fixing plate; fixed perforations are opened on the upper fixing plate, and several depths are evenly opened on the edges of the fixing perforations Consistent fourth cut.

Preferably, the lower backing board, the supporting board and the fixing board are formed by folding a strip of corrugated paper.

Preferably, a buffer plate is folded on the lower backing plate.

Compared with prior art, the beneficial effect of the present invention is:

1. The packaging box is entirely made of corrugated paper, which is fixed and maintains the shape of the packaging box by folding and inserting each other. There is only one sticky opening, and the amount of glue used is very small, which is more environmentally friendly.

2. By setting the inner liner to fix the pressure transmitter, prevent the pressure transmitter from being damaged due to collision during transportation.

3. By setting the lining, the pressure transmitter and related accessories are separated and placed in an orderly manner.

Description of drawings

Figure 1 is a structural schematic diagram of the front of the pressure transmitter.

Figure 2 is a schematic structural view of the side of the pressure transmitter.

Fig. 3 is a schematic structural view of the packaging box in the embodiment.

Fig. 4 is a schematic structural view of the packaging box in a closed state in the embodiment.

FIG. 5 is a schematic structural diagram of FIG. 4 from another viewing angle.

Fig. 6 is a schematic view of the structure of the packaging box in the embodiment when the lower opening is opened.

Fig. 7 is a structural schematic diagram of the lower left flanging, the lower right flanging, the lower rear flanging and the lower front flanging in the embodiment.

Fig. 8 is a perspective view of the structure of the inner liner in the embodiment.

Fig. 9 is a schematic diagram of the unfolded state of the casing in the embodiment.

Fig. 10 is a schematic diagram of the unfolded state of the liner in the embodiment.

Detailed ways

The specific implementation manner of the present invention will be described in detail below in conjunction with the accompanying drawings.

A pressure transmitter as shown in Figures 1 to 2, the pressure transmitter includes a housing a1, a transmitter head (not marked on the figure), a structural part a2, a front cover a3, a rear cover a4 and a circuit board (not marked on the picture). The casing a1 is integrally formed and includes a cylindrical barrel body a11, a cylindrical connecting portion a12 and a wire outlet portion a13. The upper end of the outlet part a13 is a rectangular plane, and the lower end of the outlet part a13 is arc-shaped, tangent to the bucket body a11 and closely attached to the bucket body a11. The outlet portion a13 and the connection portion a12 are located on opposite sides of the barrel body a11. The left and right sides of the outlet part a13 are provided with screw holes, wherein at least one screw hole is installed with a hex nut a131 for the outlet, and the wire can be outlet on one side or on both sides. When the wires go out from one side, install the hexagonal cock a132 on the other side; when the wires go out from both sides, install the hexagonal nuts a131 on both sides. In order to ensure the airtightness of the pressure transmitter, a sealing ring a133 is provided between the hex nut a131, the hex cock a132 and the screw hole of the outlet part a13. The transmitter head (not marked on the figure) and the circuit board (not marked on the figure) are arranged in the bucket body a11, and the two are electrically connected. A glass window a31 is arranged on the front cover a3, and through the glass window a31, the displayed value on the transmitter head (not marked on the figure) can be seen. The front and rear ends of the barrel a11 are provided with internal threads (not marked in the figure), the front cover a3 and the rear cover a4 are provided with external threads (not marked in the figure), and the front cover a3 and the rear cover a4 are respectively connected to the barrel a11 through threads connect. The connecting part a12 is provided with internal threads (not marked in the figure), the upper and lower ends of the structural member a2 are provided with external threads (not marked in the figure), and the upper end of the structural member a2 is fixed on the connecting part by threaded connection within a12. A pressure sensor is arranged in the structural part a2, which is filled with silicone oil, and the sensor is electrically connected to the circuit board (not marked in the figure). The lower end of the structural member a2 is screwed to the pipeline or the airtight container through an external thread (not marked in the figure), and the lower end of the structural member a2 is provided with a round hole a21, so that the pressure sensor can be in contact with the medium in the pipe or airtight container, In this way, the relevant pressure signal is obtained, and the pressure signal is converted into an electrical signal, and finally the specific size of the pressure is displayed in the form of a numerical value or a pointer on the transmitter head (not marked on the figure). A stopper a22 is provided at the lower end of the external thread (not marked on the figure) at the upper end of the structural member a2, and the stopper a22 is in the shape of a hexagonal nut. When the upper end of the structural member a2 is fixed on the connecting portion a12 through screw connection, the stopper a22 plays a positioning role, so that the upper end of the structural member a2 can be installed in a proper position. A protective cover a5 is provided at the lower end of the structural member a2, and the protective cover a5 is threadedly connected with the lower end of the structural member a2 for protecting threads. The protective cover a5 is made of rubber, plastic and other materials.

In order to ensure the transportation safety of the above-mentioned pressure transmitter and avoid damage to the pressure transmitter during transportation, we have designed the packaging box as shown in Figure 3-8.

The packaging box includes a shell 1 and an inner liner 2, both of which are formed by folding corrugated paper. The housing 1 has a regular hexahedron shape for storing and transporting items; the inner lining 2 is arranged in the housing 1 and fits closely with the inner side wall and the bottom of the housing 1 and the height of the inner lining 2 is lower than that of the housing 1 , as a better choice, the height of the lining 2 used by us is two-thirds of the height of the shell 1. The inner liner 2 is used to fix the product to be packaged and to absorb shock to the product.

The upper end of the housing 1 is an upper opening 3 through which the pressure transmitter is inserted into the housing 1 . Extending from the left edge and the right edge of the upper opening 3 in opposite directions, an upper left flange 11 and an upper right flange 12 are obtained, and the upper left flange 11 and the upper right flange 12 are used to cover the upper opening 3 . Extending from the rear edge of the upper opening 3 is an upper rear flange 13 , which is folded onto the upper surfaces of the upper left flange 11 and the upper right flange 12 . Extending from the front end of the upper rear flange 13, an insertion flange 14 is obtained. The insertion flange 14 is inserted into the front edge of the upper opening 3, so that when the upper opening 3 is in a closed state, the upper left flange 11 and the upper right flange 12 And last flange 13 is fixed. As a preferred mode, the insertion flange 14 has a width corresponding to the width of the upper opening 3, and the two sides of the front end of the insertion flange 14 are arc-shaped, this design can make the insertion flange 14 inserted into the front edge of the upper opening 3 process more smoothly. A locking socket 15 is provided at the center of the connection between the insertion flange 14 and the upper rear flange 13, and the locking flange 16 is obtained by extending from the middle of the front edge of the upper opening 3, and the locking flange 16 is inserted into the locking socket 15. , the insertion flange 14 can be locked. As a preferred mode, the locking flange 16 has a width corresponding to the width of the locking socket 15, and the end of the locking flange 16 is arc-shaped. This design can make the process of inserting the locking flange 16 into the locking socket 15 Smoother.

On both sides of the connection between the insert flange 14 and the upper rear flange 13, a first slit 17 is provided, and the inner edge of the first slit 17 is provided with a second slit 18, and the second slit 18 is connected with the first slit. 17 are vertical. This setting makes the insertion cuff 14 less labor-saving when folding, and at the same time avoids damage to the upper rear cuff 13 and the insertion cuff 14 during the folding process.

A pair of third cutouts 19 are formed at the connection between the two side edges of the locking flange 16 and the front edge of the upper opening 3 , and the depths of the third cutouts 19 are consistent. This design allows the locking flange 16 to have greater freedom, and can be avoided when the insertion flange 14 is inserted into the front edge of the upper opening 3, preventing it from affecting the insertion process; damage to the front plate 113 of the housing 1.

The lower end of the housing 1 has a lower opening 4 . A lower left flange 31 and a lower right flange 32 are obtained extending from the left edge and the right edge of the lower opening 4 in opposite directions. The lower left flange 31 and the lower right flange 32 are used to cover the lower opening 4 . Extending from the rear edge of the lower opening 4 is a lower rear flange 33 which is folded to the upper surfaces of the lower left flange 31 and the lower right flange 32 . Extending from the front edge of the lower opening 4 is a lower front flange 34 , which is folded to the upper surfaces of the lower left flange 31 and the lower right flange 32 , and is mated with the lower right flange 32 . Wherein, the lower rear flange 33 can cover 2/3 of the lower opening 4 after being folded to the upper surfaces of the lower left flange 31 and the lower right flange 32 . A rectangular notch 35 is opened at the center of the front end of the lower back flange 33 . The lower front flange 34 is in the shape of a gradually contracting trapezoid from the rear end to the front end, and the front end of the lower front flange 34 extends forward to form a plug connector 36 . The specific folding method is: first fold the lower left flange 31 and the lower right flange 32 inwardly to cover the lower opening 4; then fold the lower rear flange 33 to the bottom of the lower left flange 31 and the lower right flange 32 surface; finally the lower front flange 34 is folded to the lower surface of the lower left flange 31 and the lower right flange 32, and the plug joint 36 is inserted into the rectangular gap 35. At this time, the left and right sides of the front end of the lower front flange 34 The two sides cover the cardboard on both sides of the rectangular notch 35 . In order to save material, under the premise that the lower opening 4 is completely closed, the size of the lower left flange 31 and the lower right flange 32 can be appropriately reduced.

The inner liner 2 is made of folded strips of corrugated paper, and includes a lower backing board 21 , supporting boards 22 located on both sides of the lower backing board 21 , and an upper fixing board 23 . A circular fixing through hole 24 is opened on the upper fixing plate 23 , and a plurality of fourth cutouts 25 with the same depth are evenly formed on the edge of the fixing through hole 24 . In order to obtain a better cushioning effect, a cushioning plate 26 is also folded on the lower pad 21 .

Fig. 9 is a schematic diagram of the unfolded state of the packaging box shell 1 of the embodiment of the general inventive concept. As shown in FIG. 9 , the case 1 in the unfolded state includes a main body 100 including a flat unit 110 , an upturned unit 120 and a downturned unit 130 separated from each other by a horizontal folding line U and a vertical folding line V. The main body 100 folds the flat unit 110 , the upturned unit 120 and the downturned unit 130 through the horizontal folding line U and the vertical folding line V to form a substantially regular hexahedron-shaped casing 1 .

The panel unit 110 includes a rear panel 111 , a left panel 112 , a front panel 113 , and a right panel 114 sequentially arranged to form a hollow square column. One side of the rear plate 111 is extended to form an adhesive plate 115 , which is folded inward along the vertical folding line V and bonded to the right plate 114 for fixation.

The flip-up unit 120 and the flip-down unit 130 corresponding to each other are formed at the upper end and the lower end of the flat panel unit 110 , and the flip-up unit 120 and the flip-down unit 130 respectively have flaps separated from each other.

The turning unit 120 includes an upper left turning edge 11 , an upper right turning edge 12 and an upper rear turning edge 13 . Wherein, the upper rear flange 13 is obtained by extending the upper end of the rear plate 111 , the upper left flange 11 is obtained by extending the upper end of the left plate 112 , and the upper right flange 13 is obtained by extending the upper end of the right plate 114 . The upper left flange 11 , the upper right flange 12 and the upper rear flange 13 are folded inwardly along the horizontal folding line U. The front end of the upper rear flange 13 extends forward to obtain an insertion flange 14, which is inserted into the front edge of the upper opening 3 after being folded 90° along its corresponding horizontal folding line U, so that the upper opening 3 is in a closed state , the upper left flange 11, the upper right flange 12 and the upper rear flange 13 are fixed. On both sides of the connection between the insert flange 14 and the upper rear flange 13, a first slit 17 is provided, and the inner edge of the first slit 17 is provided with a second slit 18, and the second slit 18 is connected with the first slit. 17 are vertical.

A locking socket 15 is provided at the center of the connection between the insertion flange 14 and the upper rear flange 13 , and the locking flange 16 is obtained by extending the middle part of the upper end of the front plate 113 . The locking flange 16 is folded 90° along its corresponding horizontal folding line U and then inserted into the locking socket 15 , thereby locking the insertion flange 14 . A pair of third cutouts 19 are formed at the connection between the two side edges of the locking flange 16 and the front edge of the upper opening 3 , and the depths of the third cutouts 19 are consistent.

The turning down unit 130 includes a lower left turning edge 31 , a lower right turning edge 32 , a lower rear turning edge 33 and a lower front turning edge 34 . Among them, the lower left flange 31 is obtained by extending the lower end of the left flat plate 112, the lower right flange 32 is obtained by extending the lower end of the right flat plate 114, the lower front flange 34 is obtained by extending downward from the lower end of the front flat plate 113, and the lower rear flange is obtained by extending the lower end of the front flat plate 113. 33 is obtained after extending from the lower end of the rear plate 111. The lower left flange 31 , the lower right flange 32 , the lower rear flange 33 and the lower front flange 34 are folded inwardly along the horizontal folding line U.

Fig. 10 is a schematic view of the unfolded state of the inner liner 2 of the embodiment of the general inventive concept. As shown in Figure 9, it can be seen that the inner liner 2 in the unfolded state is a long strip of corrugated paper, and four vertical folding lines V parallel to each other are formed by embossing on the long strip of corrugated paper. Shaped corrugated is divided into five parts uniformly, is buffer plate 26, backing plate 21, support plate 22, upper fixed plate 23 and support plate 22 successively.

In the process of loading the pressure transmitter into the packing box, the following steps are required:

Step 1: After the rear plate 111, the left plate 112, the front plate 113, the right plate 114 and the bonding plate 115 are folded inwards by 90° along their respective vertical folding lines V, the right plate 114 is firmly glued to the bonding plate 115 The knot forms a hollow square column with upper and lower openings (note: the natural folding direction of vertical folding line V and horizontal folding line U is defined as inward folding).

Step 2, the turning unit 130 includes the lower left flap 31, the lower right flap 32, the lower rear flap 33 and the lower front flap 34, which are folded inwardly along the respective horizontal folding lines U. Flange 31 and lower right flange 32 are folded inwardly to 90°; then lower rear flange 33 is folded inwardly to 90° so that the lower surfaces of lower left flange 31 and lower right flange 32 fit together; finally The lower front flange 34 is folded to the lower surfaces of the lower left flange 31 and the lower right flange 32 , and the plug joint 36 is inserted into the rectangular gap 35 .

Step 3, the buffer plate 26 is folded 180° along the vertical folding line V, that is, it is folded above the lower backing plate 21 and overlapped; insert the backing plate 21 below the inner liner 2 downward into the molded shell 1 from the upper opening 3, until the lower backing plate 21 is in close contact with the bottom of the casing 1 .

Step 4, put the pressure transmitter head down into the housing 1, so that the upper end of the pressure transmitter is in close contact with the buffer plate 26, and the support plate 22, the upper fixing plate 23 and the support plate 22 of the lining 2 are sequentially placed Fold 90° along the vertical folding line V. At this time, two support plates 22 play a supporting role; the lower end of the structural member a2 passes through the fixed perforation 24, and the diameter of the fixed perforation 24 is not greater than the diameter of the lower end of the structural member a2.

Step five, after folding the lower left flange 31, the lower right flange 32, the lower rear flange 33, and the lower front flange 34, the upper opening is closed, and the locking is completed through the cooperation of the locking flange 16 and the locking jack 15.

The above content described in this specification is only an illustration of the present invention. Those skilled in the technical field to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, as long as they do not deviate from the content of the description of the present invention or exceed the scope defined in the claims , should belong to the protection scope of the present invention.

Claims (10)

1. A packing box, comprising a shell (1) and an inner lining (2), characterized in that: The casing (1) has a regular hexahedron shape and is used for storing and transporting articles; an upper opening (3) formed on one surface of the housing (1) such that an item is inserted into the housing (1) through said upper opening (3); The upper left flanging (11) and the upper right flanging (12) extend from the left edge and the right edge of the upper opening (3) in opposite directions, and are used to cover the upper opening (3); The upper rear flange (13), extending from the rear edge of the upper opening (3), is folded onto the upper surfaces of the upper left flange (11) and the upper right flange (12); The insertion flange (14) extends from the front end of the upper rear flange (13) and is inserted into the front edge of the upper opening (3); the locking jack (15) is opened on the insertion flange (14) and the upper rear flange the center of the junction of sides (13); The locking flange (16), extending from the middle of the front edge of the upper opening (3), is inserted into the locking socket (15) for locking the insertion flange (14); The inner liner (2) closely adheres to the inner wall of the casing (1) and has a height lower than that of the casing (1), and is used for fixing the product to be packaged and shock-absorbing the product. 2. The packaging box according to claim 1, characterized in that the insertion flange (14) has a width corresponding to the width of the upper opening (3). 3. The packing box according to claim 1, characterized in that: the locking flange (16) has a width corresponding to the width of the locking socket (15). 4. The packing box according to claim 1, characterized in that: first cutouts (17) are provided on both sides of the connection between the insert flange (14) and the upper rear flange (13), and the A second cutout (18) is formed on the inner edge of the first cutout (17). 5. The packaging box according to claim 4, characterized in that the second cutout (18) is perpendicular to the first cutout (17). 6. The packing box according to claims 1-5, characterized in that: there are a pair of third cutouts (19) at the connection between the two side edges of the locking flange (16) and the front edge of the upper opening (3), The pair of third cutouts (19) have the same depth. 7. The packing box according to claim 1, characterized in that: the housing (1) also has a lower opening (4); a lower opening (4), formed on the other surface of the casing (1) and opposite to the upper opening (3); The lower left flange (31) and the lower right flange (32) extend from the left edge and the right edge of the lower opening (4) in opposite directions for covering the lower opening (4); The lower rear flange (33), extending from the rear edge of the lower opening (4), is folded onto the lower surfaces of the lower left flange (31) and the lower right flange (32); The lower front flap (34), extending from the front edge of the lower opening (4), is folded onto the lower surface of the upper left flap (11) and the upper right flap (12), and is aligned with the lower right flap (32) Plug fit. 8. The packing box according to claim 1, characterized in that: the inner liner (2) comprises a lower backing plate (21), support plates (22) located on both sides of the lower backing plate (21), and an upper fixing plate plate (23); the upper fixing plate (23) is provided with a fixed through hole (24), and the edge of the fixed through hole (24) is uniformly provided with several fourth cutouts (25) of the same depth. 9. The packing box according to claim 8, characterized in that: the lower backing board (21), the supporting board (22) and the fixing board are formed by folding a strip of corrugated paper. 10. The packing box according to claim 8 or 9, characterized in that: a buffer plate (26) is folded on the lower pad (21).