Environment-friendly paper packaging barrel with moisture-proof function

Abstract

The utility model discloses an environment-friendly paper packaging barrel with a damp-proof function, and belongs to the technical field of packaging containers. Comprising a paper barrel body, a barrel cover; the barrel cover locking ring is used for locking or unlocking the barrel cover; the paper barrel comprises a paper barrel body and a barrel bottom plate, and is characterized in that barrel body bottom plate supporting edge folding and unfolding assisting grooves are formed in the lower portion of the paper barrel body and surround the circumferential direction of the paper barrel body at intervals, and the area with the barrel body bottom plate supporting edge folding and unfolding assisting grooves is folded and unfolded towards the direction of a barrel body cavity to form a barrel wall attaching reinforcing folding part and a barrel body bottom plate supporting flange edge; and the barrel wall attaching reinforcing folding part is attached to the inner wall of the paper barrel body, so that the lower part of the paper barrel body forms a double-layer structure in an area corresponding to the barrel wall attaching reinforcing folding part. The paper barrel has the advantages that raw materials in the barrel body of the paper barrel can be protected, and the overall supporting effect on the barrel bottom plate is improved; the device can be recycled, so that the use cost is reduced; and after being damaged and abandoned, the material can be used as a good recoverable resource, so that ideal energy-saving type circular economy is embodied.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of packing container, specifically relates to an environment-friendly paper packing barrel with moisture-proof function. BACKGROUND

[0002] As known in the industry, for many powder or granular raw materials such as pigments, dyes, plastic particles, rare earth powder, etc., they are usually first packed into a film bag like PVC, and then packed into a paper packing barrel. The advantages of using a paper packing barrel for secondary packaging are at least: reflecting the compression strength, preventing the deformation of stacking, isolating the pollution of raw materials from the outside world, reflecting the lightweight packaging, moisture-proof and environmental protection, etc.

[0003] In recent years, the requirements for paper packing barrels are increasingly stringent. For example, paper packing barrels for export products are required to meet ISTA3A transportation test, ASTM D642 stacking test, and EU EN13428 moisture-proof provisions, thereby forcing manufacturers to improve the structure of traditional paper packing barrels. Typical examples of the so-called traditional paper packing barrels include CN2915695Y (all-paper packing barrel), CN200957921Y (packing barrel), CN207107288U (an environment-friendly paper packing barrel), CN205186710U (paper packing barrel), and CN222769901U (environment-friendly paper packing barrel), etc. The common features of the foregoing paper packing barrels are not limited to: since the bottom of the barrel tends to be in overall contact with the floor after being placed on the floor, there is a lack of air flow layer (isolation layer) which leads to the difficulty or even inability to dissipate moisture, the inability to prevent liquid retention, the inability to avoid the influence of condensed water, the low structural strength, and the easy deformation, etc.

[0004] If a reasonable empty space is maintained between the four peripheral edge portions of the bottom of the paper packing barrel and the barrel bottom wall to avoid the bottom plate of the paper packing barrel from being in contact with the floor (also referred to as "contact"), the above-mentioned problem of moisture invasion can be solved. However, since the paper packing barrel is circular, there will inevitably be a problem of four peripheral folding material redundancy during the folding of the barrel bottom circumference. On the one hand, it is impossible to achieve from the process, on the other hand, the aforementioned redundancy will lead to wrinkles and even breakage, and on the other hand, it is impossible to ensure the flatness of the double-layer structure after folding and to reflect the uniform bearing capacity. Perhaps these factors are the root cause of the flat bottom of the current paper packing barrel.

[0005] In view of the above-mentioned prior art situation, the applicant has made persistent and beneficial repeated design and test, and finally found a way to solve the above-mentioned problems. The technical scheme to be introduced below is generated in this background. UTILITY MODEL CONTENTS

[0006] The utility model discloses a task is to provide a kind of with the function of moisture-proof of environmental protection type paper packing barrel which is helpful to make the periphery of barrel body lower part form the non-contact empty space between barrel bottom plate and terrace, so as to avoid damp invasion, and can be recycled and used as recycling resource after being discarded.

[0007] The utility model discloses a task is thus completed, a kind of with the function of moisture-proof of environmental protection type paper packing barrel, including the paper barrel body with barrel body cavity;A barrel cover, the barrel cover is in corresponding with the upper part of barrel body cavity Open position and paper barrel body cover;A barrel cover locking ring for locking or releasing locking of the barrel cover in corresponding with the upper part of barrel body cavity Open position, the barrel cover locking ring is in the state of use and is cooperated with the periphery edge portion of barrel cover with the sleeve of barrel cover outside;A barrel bottom plate, the barrel bottom plate is set in the barrel body cavity and is located at the bottom of barrel body cavity, characterized in that: in the lower part of the paper barrel body and around the circumferential direction of paper barrel body with interval state there is barrel body bottom plate support edge auxiliary folding and unfolding groove, the area with barrel body bottom plate support edge auxiliary folding and unfolding groove is folded and unfolded towards the direction of barrel body cavity and is constituted with a barrel wall abutting enhancement folding part and a barrel body bottom plate support flange, the lower part of paper barrel body is constituted double-layer structure in corresponding with barrel wall abutting enhancement folding part's area by the abutment of barrel wall abutting enhancement folding part and the inner wall of paper barrel body, barrel body bottom plate support flange is constituted by the upper part of barrel wall abutting enhancement folding part and is folded and unfolded in horizontal state towards the radial direction of barrel body cavity, the periphery edge portion of the barrel bottom plate is supported and positioned on the barrel body bottom plate support flange, and on the side surface of barrel bottom plate towards down there is a moisture-proof layer, the moisture-proof layer reaches the lower surface of barrel body bottom plate support flange, and the space between the moisture-proof layer and the barrel body bottom plane of paper barrel body constitutes humidity dispersion space.

[0008] Further, in the upper part of the paper barrel body and around the circumferential direction of paper barrel body there is a barrel upper edge reinforcing fold that is folded and unfolded towards the cavity wall of barrel body cavity and coincides with the inside of barrel upper edge of paper barrel body;In the circumferential direction of the barrel cover and in corresponding with the position of barrel upper edge, there is a barrel cover embedding groove that is open downwards, and the barrel cover embedding groove is embedded with barrel upper edge and barrel upper edge reinforcing fold.

[0009] Further, the bucket cover locking ring is provided with a bucket cover locking ring opening, a pull tab seat is provided on the side of the one end of the bucket cover locking ring opening and outwardly, and a press tab seat is provided on the side of the other end of the bucket cover locking ring opening and outwardly; one end of a pull tab is provided with a pull tab hinged end which is hinged to the pull tab seat, and the other end of the pull tab is provided with a pull tab free end, one end of a press tab is provided with a press tab hinged end which is hinged to the press tab seat, the middle part of the press tab is provided with a pull tab free end hinged shaft connecting cavity which is hinged to the pull tab free end, and the other end of the press tab is provided with a press tab operating end which is used to lock or unlock the bucket cover locking ring; the pull tab seat is integrated with the bucket cover locking ring at the one end of the bucket cover locking ring opening, and a pull tab hinged end shaft embedding recess is provided on the outward side of the pull tab seat; the press tab seat is integrated with the bucket cover locking ring at the other end of the bucket cover locking ring opening, and a press tab hinged end shaft embedding recess is provided on the outward side of the press tab seat; one end of the pull tab is provided with a pull tab hinged end hinged shaft which is integrated with the pull tab and is embedded in the pull tab hinged end shaft embedding recess and is in free pivoting relationship with the pull tab hinged end shaft embedding recess; the other end of the pull tab is provided with a pull tab free end hinged shaft which is integrated with the pull tab and is embedded in the pull tab free end hinged shaft connecting cavity on the side of the press tab facing the pull tab and is in free pivoting relationship with the pull tab free end hinged shaft connecting cavity; one end of the press tab is provided with a press tab hinged end hinged shaft which is embedded in the press tab hinged end shaft embedding recess and is in free pivoting relationship with the press tab hinged end shaft embedding recess.

[0010] Further, the width of the bucket cover embedding groove is the sum of the thicknesses of the paper bucket body upper edge and the bucket body upper edge reinforcing fold.

[0011] Further, a press tab control member insertion hole is provided on the press tab and in the middle part of the press tab, a locking ring hole is provided on the bucket cover locking ring and at the position corresponding to the press tab control member insertion hole, and the press tab is locked by inserting a press tab control member into the press tab control member insertion hole through the locking ring hole; the shape of the press tab control member is ┐.

[0012] Further, the bucket cover, the bucket cover locking ring, the pull tab and the pressing knob are made of plastic molding, and when the bucket cover is molded by plastic, the bucket cover embedding groove is integrally formed with the bucket cover when the bucket cover is shaped; when the bucket cover locking ring is molded by plastic, the pull tab seat and the pressing knob seat are integrally formed with the bucket cover locking ring; when the pull tab is molded by plastic, the pull tab hinged end hinge shaft and the pull tab free end hinge shaft are integrally formed with the pull tab; when the pressing knob is molded by plastic, the pull tab free end hinge shaft connecting cavity and the pressing knob hinge shaft are integrally formed with the pressing knob; when the pull tab seat is molded with the bucket cover locking ring, the pull tab hinged end shaft embedding recess cavity is integrally formed with the pull tab seat; when the pressing knob seat is molded with the bucket cover locking ring, the pressing knob hinged end shaft embedding recess cavity is integrally formed with the pressing knob seat; the plastic is PP.

[0013] Further, the edge part of the bucket cover and around the circumferential direction of the bucket cover is provided with a bucket cover reinforcing body, and the cross-sectional shape of the bucket cover reinforcing body is a T shape.

[0014] Further, the inner side of the bucket cover locking ring and around the circumferential direction of the bucket cover locking ring is provided with a bucket cover embedding groove, and the four edge parts of the bucket cover are matched with the bucket cover embedding groove.

[0015] Further, the width of the bucket body bottom plate supporting flange edge is 2-3 cm; the height of the moisture dispersing space is 0.8-1.5 cm.

[0016] Further, the distance between the two adjacent bucket body bottom plate supporting edge folding and unfolding grooves is 0.8-1.2 cm; the moisture-proof layer is kraft paper with a biaxially oriented polypropylene film on the surface, the grammage of the kraft paper is 160-240 g / m 2 , and the grammage of the biaxially oriented polypropylene film is 20-25 g / m 2 .

[0017] The technical effect of the technical scheme provided by the utility model lies in that the bucket body bottom plate supporting edge folding and unfolding grooves are arranged in the lower part of the paper bucket body in a spaced state around the circumferential direction of the paper bucket body, so that the lower part of the paper bucket body can be smoothly folded and unfolded upward to form the reinforcing folded part abutting against the bucket wall and the bucket body bottom plate supporting flange edge radially folded and unfolded on the upper part of the reinforcing folded part towards the bucket body cavity, on the one hand, the ground space between the paper bucket body bottom plane and the moisture-proof layer is formed as a moisture dispersing space to avoid moisture invasion, which is very beneficial to protect the raw materials in the paper bucket body, on the other hand, the four edge parts of the bucket bottom plate are supported and fixed with the bucket body bottom plate supporting flange edge, which is beneficial to improve the overall supporting effect of the bucket bottom plate. Since it can be recycled and used, the use cost can be reduced; since it can be used as a good recyclable resource after being damaged and discarded, the ideal saving and energy-saving circular economy spirit can be embodied. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Enlarged view of part A;

[0020] Figure 3 for Figure 1 The diagram shown is an unfolded view of the paper drum body.

[0021] Figure 4 for Figure 1 The exploded view shown is of the pull tab, the pressure loop, the pull tab holder, and the pressure loop holder before assembly.

[0022] Figure 5 for Figure 1 The diagram shows the assembly of the pull tab and pressure loop with the pull tab seat and pressure loop seat. Detailed Implementation

[0023] In order to better understand the technical essence and beneficial effects of this utility model, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the solution of this utility model. Any formal but not substantive equivalent transformations made based on the concept of this utility model should be considered within the scope of the technical solution of this utility model.

[0024] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are in the form of... Figure 1 The position shown refers to the positional state, and therefore should not be construed as a special limitation on the technical solution provided by this utility model.

[0025] Please see Figures 1 to 3, shows a paper bucket barrel 1 with a barrel cavity 11; shows a barrel cover 2 which is fitted to the paper bucket barrel 1 at a position corresponding to the upper open position of the barrel cavity 11; shows a barrel cover locking ring 3 for locking or unlocking the aforementioned barrel cover 2 at a position corresponding to the aforementioned barrel cavity 11, which is fitted around the barrel cover 2 in the state of use and cooperates with the peripheral edge portion of the barrel cover 2; a barrel bottom plate 4 which is arranged in the aforementioned barrel cavity 11 and at the bottom of the barrel cavity 11, and is arranged in a spaced state at the lower portion of the aforementioned paper bucket barrel 1 and around the circumferential direction of the paper bucket barrel 1 with barrel bottom plate supporting edge folding grooves 12, the area with the barrel bottom plate supporting edge folding grooves 12 is folded towards the direction of the barrel cavity 11 to form a barrel wall abutting reinforcing folding portion 13 and a barrel bottom plate supporting flange 14, the lower portion of the paper bucket barrel 1 at the area corresponding to the barrel wall abutting reinforcing folding portion 13 is formed as a double-layer structure by the abutment of the barrel wall abutting reinforcing folding portion 13 with the inner wall of the paper bucket barrel 1, the barrel bottom plate supporting flange 14 is formed by the upper portion of the barrel wall abutting reinforcing folding portion 13 being folded in a horizontal state towards the radial direction of the barrel cavity 11, the peripheral edge portion of the aforementioned barrel bottom plate 4 is supported and positioned in a fixed manner by adhesive on the aforementioned barrel bottom plate supporting flange 14, and a moisture-proof layer 41 is combined on the side surface of the barrel bottom plate 4 facing downwards, which extends to the lower surface of the aforementioned barrel bottom plate supporting flange 14, and the space between the moisture-proof layer 41 and the barrel bottom plane 15 of the paper bucket barrel 1 is formed as a moisture dispersing space 5 (also referred to as "moisture isolation space" or similar).

[0026] Further, at the upper open position of the aforementioned paper bucket barrel 1 and around the circumferential direction of the paper bucket barrel 1, a barrel upper edge reinforcing fold 161 is formed which is folded towards the cavity wall of the aforementioned barrel cavity 11 and coincides with the inner side of the barrel upper edge 16 of the paper bucket barrel 1; at the circumferential direction of the aforementioned barrel cover 2 and at a position corresponding to the aforementioned barrel upper edge 16, a barrel cover embedding groove 21 is formed which is open downwards and is embedded with the aforementioned barrel upper edge 16 and barrel upper edge reinforcing fold 161.

[0027] Further, please refer to Figure 4 and Figure 5, the lid locking ring 3 is provided with a lid locking ring opening 31, and a pull-tab seat 32 is provided on the outer side of the lid locking ring 3 at the position of the one end of the lid locking ring opening 31, and a press-tab seat 33 is provided on the outer side of the lid locking ring 3 at the position of the other end of the lid locking ring opening 31; one end of the pull-tab 6 is provided with a pull-tab hinged end 61 hinged to the pull-tab seat 32, and the other end of the pull-tab 6 is provided with a pull-tab free end 62, one end of the press-tab 7 is provided with a press-tab hinged end 71 hinged to the press-tab seat 33, and the middle part of the press-tab 7 is provided with a pull-tab free end hinged shaft connecting cavity 72 hinged to the pull-tab free end 62, and the other end of the press-tab 7 is provided with a press-tab operating end 73 for locking or unlocking the lid locking ring 3, the pull-tab seat 32 is integrated with the lid locking ring 3 at the position of the one end of the lid locking ring opening 31 of the lid locking ring 3, and the outer side of the pull-tab seat 32 is provided with a pull-tab hinged end shaft embedding recess 321, the press-tab seat 33 is integrated with the lid locking ring 3 at the position of the other end of the lid locking ring opening 31 of the lid locking ring 3, and the outer side of the press-tab seat 33 is provided with a press-tab hinged end shaft embedding recess 331, one end of the pull-tab 6 is provided with a pull-tab hinged end hinged shaft 63 integrated with the pull-tab 6, which is embedded in the pull-tab hinged end shaft embedding recess 321 and has a free pivoting relationship with the pull-tab hinged end shaft embedding recess 321, the other end of the pull-tab 6 is provided with a pull-tab free end hinged shaft 64 integrated with the pull-tab 6, which is embedded in the pull-tab free end hinged shaft connecting cavity 72 on the side of the press-tab 7 facing the pull-tab 6 and has a free pivoting relationship with the pull-tab free end hinged shaft connecting cavity 72, and one end of the press-tab hinged end 71 is provided with a press-tab hinged end shaft 711, which is embedded in the press-tab hinged end shaft embedding recess 331 and has a free pivoting relationship with the press-tab hinged end shaft embedding recess 331.

[0028] Further, the width of the lid embedding groove 21 is the sum of the thicknesses of the paper tub body upper edge 16 and the tub body upper edge reinforcing fold 161.

[0029] Further, a press-tab pipe control member insertion hole 74 is provided on the press-tab 7 at the middle part of the press-tab 7, and a lid locking ring hole 34 is provided on the lid locking ring 3 at the position corresponding to the press-tab pipe control member insertion hole 74, and the press-tab 7 is locked by inserting a press-tab pipe control member 8 into the press-tab pipe control member insertion hole 74 through the lid locking ring hole 34.

[0030] Further, the shape of the press-tab pipe control member 8 is ┐.

[0031] Further, the aforementioned bucket cover 2, the bucket cover locking ring 3, the pull-tab 6 and the pressing knob 7 are all made of plastic molding, and when the bucket cover 2 is molded by plastic, the aforementioned bucket cover embedding groove 21 is integrally formed with the bucket cover 2 when the bucket cover 2 is shaped; when the aforementioned bucket cover locking ring 3 is molded by plastic, the aforementioned pull-tab seat 32 and the pressing knob seat 33 are integrally formed with the bucket cover locking ring 3; when the aforementioned pull-tab 6 is molded by plastic, the aforementioned pull-tab hinged end hinged shaft 63 and the pull-tab free end hinged shaft 64 are integrally formed with the pull-tab 6; when the aforementioned pressing knob 7 is molded by plastic, the aforementioned pull-tab free end hinged shaft connecting cavity 72 and the pressing knob hinged shaft 711 are integrally formed with the pressing knob 7; when the aforementioned pull-tab seat 32 is molded with the aforementioned bucket cover locking ring 3, the aforementioned pull-tab hinged end shaft embedding recess cavity 321 is integrally formed with the pull-tab seat 32; when the aforementioned pressing knob seat 33 is molded with the aforementioned bucket cover locking ring 3, the aforementioned pressing knob hinged end shaft embedding recess cavity 331 is integrally formed with the pressing knob seat 33; the aforementioned plastic is PP.

[0032] Further, at the edge part of the aforementioned bucket cover 2 and around the circumferential direction of the bucket cover 2, a bucket cover reinforcing body 22 is formed, the cross-sectional shape of the bucket cover reinforcing body 22 is a T shape.

[0033] Further, at the inner side of the aforementioned bucket cover locking ring 3 and around the circumferential direction of the bucket cover locking ring 3, a bucket cover embedding groove 35 is formed, the peripheral edge part of the aforementioned bucket cover 2 is matched with the bucket cover embedding groove 35.

[0034] Further, the width of the aforementioned bucket body bottom plate supporting flange edge 14 is preferably 2-3 cm, preferably 2.5 cm, and the width of the bucket body bottom plate supporting flange edge 14 in the embodiment is 2.5 cm; the height of the aforementioned moisture dispersing space 5 is preferably 0.8-1.5 cm, preferably 1-1.2 cm, preferably 1 cm, and the height of the moisture dispersing space 5 in the embodiment is 1 cm.

[0035] The distance between each two adjacent aforementioned bucket body bottom plate supporting edge folding and unfolding slot 12 is preferably 0.8-1.2 cm, preferably 1 cm, and the distance between each two adjacent aforementioned bucket body bottom plate supporting edge folding and unfolding slot 12 in the embodiment is 1 cm. The aforementioned moisture-proof layer 41 is kraft paper with a biaxially oriented polypropylene film (BOPP film) combined on the surface (which can also be called compounded), wherein the grammage of the kraft paper is preferably 160-240 g / m 2 , preferably 180-220 g / m 2 , preferably 200 g / m 2 , and the grammage of the kraft paper in the embodiment is 200 g / m 2 ; the grammage of the biaxially oriented polypropylene film is preferably 20-25 g / m 2 , preferably 22 g / m 2 , and the grammage of the biaxially oriented polypropylene film in the embodiment is 22 g / m 2 .

[0036] When the material, not limited to the material mentioned by the applicant in the background section, is put into the inner bag such as PVC film bag, the inner bag together with the material is placed in the barrel cavity 11, and then the barrel cover 2 is covered, so that the barrel upper edge 16 together with the barrel upper edge reinforcing flange 161 is embedded in the barrel cover embedding groove 21, and then the barrel cover locking ring 3 is sleeved on the outer barrel cover 2 around the peripheral edge part of the barrel cover 2, and then the pressure knob 7 is pulled in the clockwise direction (in the position state shown in Figure 1 The barrel cover locking ring opening 31 is closed, so that the puller 6 is driven by the pressure knob 7 until the barrel cover 2 is reliably clamped on the paper barrel barrel body 1 by the barrel cover locking ring 3. After the barrel cover 2 is fastened to the barrel body upper edge 16 and the barrel body upper edge reinforcing flange 161 of the paper barrel barrel body 1 by the barrel cover locking ring 3, the paper barrel barrel body 1 containing the material can be put into the logistics link. When the raw material in the barrel cavity 11 is to be used, the barrel cover locking ring 3 is released from the control of the barrel cover 2 by reversing the operation of the pressure knob operation end 73, and the barrel cover is lifted.

[0037] In summary, the technical solution provided by the present application makes up for the shortcomings in the prior art, successfully completes the invention task, and truly realizes the technical effects described by the applicant in the above technical effect column.

Claims

1. An environmentally friendly paper packaging barrel with moisture-proof function, comprising a paper barrel body (1) with a barrel body cavity (11); a barrel cover (2) which is covered on the paper barrel body (1) at a position corresponding to the upper open position of the barrel body cavity (11); a barrel cover locking ring (3) for locking or unlocking the barrel cover (2) at a position corresponding to the upper open position of the barrel body cavity (11), which is sleeved on the outside of the barrel cover (2) and cooperates with the peripheral edge portion of the barrel cover (2) in the use state; and a barrel bottom plate (4) which is arranged in the barrel body cavity (11) and located at the bottom of the barrel body cavity (11), characterized in that: In the lower part of the paper bucket barrel (1) and in the circumferential direction of the paper bucket barrel (1) are provided with barrel bottom support edge folding and unfolding grooves (12) in a spaced state, the area with barrel bottom support edge folding and unfolding grooves (12) is folded and unfolded towards the direction of the barrel cavity (11) to form a barrel wall abutting reinforcing folded part (13) and a barrel bottom support flange edge (14), the inner wall of the paper bucket barrel (1) is attached to the barrel wall abutting reinforcing folded part (13), so that the lower part of the paper bucket barrel (1) in the area corresponding to the barrel wall abutting reinforcing folded part (13) forms a double-layer structure, the barrel bottom support flange edge (14) is unfolded radially in a horizontal state from the upper part of the barrel wall abutting reinforcing folded part (13) towards the barrel cavity (11), the circumferential edge part of the barrel bottom (4) is supported and positioned on the barrel bottom support flange edge (14), and a moisture-proof layer (41) is combined on the downward side surface of the barrel bottom (4), which extends to the lower surface of the barrel bottom support flange edge (14), and the space between the moisture-proof layer (41) and the barrel bottom plane (15) of the paper bucket barrel (1) forms a moisture dispersion space (5).

2. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 1, characterized in that: In the upper open position of the paper bucket barrel (1) and in the circumferential direction of the paper bucket barrel (1) is formed a barrel upper edge reinforcing folded edge (161) which is folded and unfolded towards the cavity wall of the barrel cavity (11) and coincides with the inner side of the barrel upper edge (16) of the paper bucket barrel (1); in the circumferential direction of the barrel cover (2) and in the position corresponding to the barrel upper edge (16) is formed a downwardly open barrel cover recess (21), which is fitted with the barrel upper edge (16) and the barrel upper edge reinforcing folded edge (161).

3. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 2, characterized in that: The bucket cover locking ring (3) is provided with a bucket cover locking ring opening (31), a pull-tab seat (32) is arranged on the side of the one end of the bucket cover locking ring (3) which is located at the opening of the bucket cover locking ring opening (31) and faces outward, and a press-tab seat (33) is arranged on the side of the other end of the bucket cover locking ring (3) which is located at the opening of the bucket cover locking ring opening (31) and also faces outward; one end of a pull-tab (6) is provided with a pull-tab hinged end (61) which is hinged to the pull-tab seat (32), the other end of the pull-tab (6) is provided with a pull-tab free end (62), one end of a press-tab (7) is provided with a press-tab hinged end (71) which is hinged to the press-tab seat (33), the middle part of the press-tab (7) is provided with a pull-tab free end hinged shaft connecting cavity (72) which is hinged to the pull-tab free end (62), and the other end of the press-tab (7) is provided with a press-tab operating end (73) which is used for locking or unlocking the bucket cover locking ring (3); the pull-tab seat (32) is integrated with the bucket cover locking ring (3) at the one end of the opening of the bucket cover locking ring opening (31), and is provided with a pull-tab hinged end shaft embedding recess (321) on the side which faces outward; the press-tab seat (33) is integrated with the bucket cover locking ring (3) at the other end of the opening of the bucket cover locking ring opening (31), and is provided with a press-tab hinged end shaft embedding recess (331) on the side which faces outward; one end of the pull-tab (6) is provided with a pull-tab hinged end hinged shaft (63) which is integrated with the pull-tab (6), the pull-tab hinged end hinged shaft (63) is embedded in the pull-tab hinged end shaft embedding recess (321) and is in a free pivoting relationship with the pull-tab hinged end shaft embedding recess (321); the other end of the pull-tab (6) is provided with a pull-tab free end hinged shaft (64) which is integrated with the pull-tab (6), the pull-tab free end hinged shaft (64) is embedded in the pull-tab free end hinged shaft connecting cavity (72) on the side of the press-tab (7) which faces the pull-tab (6) and is in a free pivoting relationship with the pull-tab free end hinged shaft connecting cavity (72); one end of the press-tab hinged end (71) is provided with a press-tab hinged end hinged shaft (711) which is embedded in the press-tab hinged end shaft embedding recess (331) and is in a free pivoting relationship with the press-tab hinged end shaft embedding recess (331).

4. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 2, characterized in that: The width of the bucket cover embedding groove (21) is the sum of the thicknesses of the paper bucket body upper edge (16) and the bucket body upper edge reinforcing folded edge (161).

5. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 3, characterized in that: A press knob tube control plug hole (74) is formed on the press knob (7) and at the middle part of the press knob (7), a locking ring hole (34) is formed on the barrel cover locking ring (3) and at the position corresponding to the press knob tube control plug hole (74), the press knob (7) is locked by inserting a press knob tube control plug (8) into the press knob tube control plug hole (74) through the locking ring hole (34); the shape of the press knob tube control plug (8) is ┐.

6. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 3, characterized in that: The barrel cover (2), the barrel cover locking ring (3), the pull-tab (6) and the press knob (7) are molded by plastic, when the barrel cover (2) is molded by plastic, the barrel cover embedding groove (21) is integrally formed with the barrel cover (2) when the barrel cover (2) is shaped, when the barrel cover locking ring (3) is molded by plastic, the pull-tab seat (32) and the press knob seat (33) are integrally formed with the barrel cover locking ring (3), when the pull-tab (6) is molded by plastic, the pull-tab hinged end hinge shaft (63) and the pull-tab free end hinge shaft (64) are integrally formed with the pull-tab (6), when the press knob (7) is molded by plastic, the pull-tab free end hinge shaft connecting cavity (72) and the press knob hinged end hinge shaft (711) are integrally formed with the press knob (7), when the pull-tab seat (32) is molded with the barrel cover locking ring (3), the pull-tab hinged end hinge shaft embedding cavity (321) is integrally formed with the pull-tab seat (32), when the press knob seat (33) is molded with the barrel cover locking ring (3), the press knob hinged end hinge shaft embedding cavity (331) is integrally formed with the press knob seat (33), the plastic is PP.

7. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 1 or 2 or 6, characterized in that: A barrel cover reinforcing body (22) is formed at the edge part of the barrel cover (2) and around the circumferential direction of the barrel cover (2), the cross-sectional shape of the barrel cover reinforcing body (22) is ┓.

8. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 1 or 2 or 6, characterized in that: A barrel cover embedding groove (35) is formed at the inner side of the barrel cover locking ring (3) and around the circumferential direction of the barrel cover locking ring (3), the peripheral edge part of the barrel cover (2) is matched with the barrel cover embedding groove (35).

9. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 1, characterized in that: The width of the barrel body bottom plate supporting flange (14) is 2-3 cm, the height of the moisture dispersing space (5) is 0.8-1.5 cm.

10. The environmentally friendly paper packaging barrel with moisture-proof function according to claim 1, characterized in that: The distance between two adjacent barrel bottom support edges is 0.8-1.2 cm; the moisture-proof layer (41) is kraft paper with a double-stretched polypropylene film on the surface, the kraft paper has a weight of 160-240 g / m 2 , and the double-stretched polypropylene film has a weight of 20-25 g / m 2 .

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