Molded pulp connector, assembly including molded pulp connector, and assembly manufacturing method

Abstract

A molded pulp connector (10), an assembly including the molded pulp connector (10), and an assembly manufacturing method. The molded pulp connector (10) is suitable for being combined with a container cover (5) and a container (6), such that the container cover (5) and the container (6) can be combined together. The molded pulp connector (10) is an integral molded pulp member and comprises: an end plate portion (1), side plate portions (2), and connecting portions (3), wherein the side plate portions (2) are arranged around the end plate portion (1); the connecting portions (3) connect the end plate portions (1) to the side plate portions (2), and enable a plurality of side plate portions (2) to be flipped from the peripheral side of the end plate portion (1) to the same side of the end plate portion (1); and a connecting structure (21) is formed on the surface of each side plate portion (2), and the connecting structures (21) are configured to connect the container cover (5) to the container (6).

Description

Paper pulp molded connecting piece, assembly comprising the same and manufacturing method of the assembly TECHNICAL FIELD

[0001] The present application relates to the field of container manufacturing, in particular to a paper pulp molded connecting piece, an assembly comprising the same and a manufacturing method of the assembly. BACKGROUND

[0002] The paper pulp molded material has the advantages of green environmental protection, but in the manufacturing process of the paper pulp molded container cover or the paper pulp molded container, it is difficult to integrally form the thread structure for connection on the paper pulp molded container cover or the paper pulp molded container by the paper pulp molding process; if a thread plastic ring is used instead, although the thread structure for connection can be integrally formed on the circumferential wall surface of the thread plastic ring by the injection molding process, the thread plastic ring is made of plastic material, which is not conducive to environmental protection. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art.

[0004] To this end, one of the objects of the present application is to provide a paper pulp molded connecting piece, which has the advantages of easy manufacturing and green environmental protection.

[0005] To achieve the above-mentioned objects, a paper pulp molded connecting piece according to the present application is integrally formed by paper pulp molding and comprises: an end plate portion; a side plate portion arranged around the end plate portion; a connecting portion connecting the end plate portion and the side plate portion, which can be flipped from the circumferential side of the end plate portion to the same side of the end plate portion, and the surface of the side plate portion is formed with a connecting structure for connecting the container cover and the container.

[0006] According to the paper pulp molded connecting piece of the present application, the paper pulp molded connecting piece can not only present a deployed state with the side plate portion located on the circumferential side of the end plate portion to facilitate the manufacturing of the paper pulp molded connecting piece, but also present a standing state with the side plate portion located on the same side of the end plate portion to meet the assembly requirements with the container or the container cover. In addition, when the paper pulp molded connecting piece is assembled with the container, the paper pulp molded connecting piece and the container can be two separate components respectively manufactured separately, thereby easily meeting the manufacturing requirements and realizing the manufacturing production. Similarly, when the paper pulp molded connecting piece is assembled with the container cover, the paper pulp molded connecting piece and the container cover can be two separate components respectively manufactured separately, thereby easily meeting the manufacturing requirements and realizing the manufacturing production.

[0007] Further, the side plate portion is a plurality of side plate portions which can be flipped from the circumferential side of the end plate portion to the same side of the end plate portion to surround a cylindrical space, and the surfaces of the plurality of side plate portions facing or facing away from the cylindrical space are formed with the connecting structure.

[0008] Further, the plurality of side plate portions surrounding the cylindrical space are arranged at intervals in the circumferential direction of the cylindrical space.

[0009] Further, among the plurality of side plate portions arranged at intervals in the circumferential direction of the cylindrical space, the circumferential distance between every adjacent two of the side plate portions is less than the circumferential length of the side plate portion, the number of the side plate portions is three to five, and the side plate portion is formed as an arc-shaped plate or a bendable flat plate.

[0010] Further, each of the side plate portions is connected to the end plate portion by a corresponding connecting portion, the circumferential length of the connecting portion is less than the circumferential length of the corresponding side plate portion in the circumferential direction of the cylindrical space, and the connecting portion is arranged at the central position of the corresponding side plate portion.

[0011] Further, the connecting structure is formed as a thread-matching structure adapted to be screwed with a thread structure, the connecting structure is formed as a protrusion on each of the side plate portions, the protrusions on the plurality of side plate portions are distributed on a helical line surrounding the cylindrical space, and the protrusion is in the shape of a strip or a hemisphere.

[0012] Further, the end plate portion of the pulp molded connector is formed with a through circular opening at the inner periphery thereof.

[0013] The second object of the present application is to provide a container assembly comprising the pulp molded connector, which is easy to manufacture and environmentally friendly.

[0014] To achieve the above objects, the container assembly of the present application comprises a container and a pulp molded connector formed with a through circular opening at the inner periphery of the end plate portion, the container comprises a mouth ring and a container body, the container body defines a containing space, the mouth ring is connected to one end of the container body, the plurality of side plate portions of the pulp molded connector are arranged at intervals in the circumferential direction of the mouth ring of the container, the connecting structure is arranged on the side of the side plate portion away from the mouth ring, the end plate portion of the pulp molded connector is sleeved with the through circular opening thereof at the mouth ring of the container, the container is a pulp molded container, and the pulp molded connector is adhesively connected to the container.

[0015] The container assembly of the present application is composed of a container and a pulp molded connector, thereby meeting the connection requirement of the container and the container cover, being easy to manufacture, and being environmentally friendly.

[0016] Further, a plurality of second sliding grooves are formed on the mouth ring of the container, and each of the plurality of second sliding grooves is open towards the radial outer side of the mouth ring and away from the container body, the plurality of second sliding grooves are arranged along the circumferential direction of the mouth ring, and the plurality of side plate portions of the pulp molded connector are respectively and one-to-one matched in the plurality of second sliding grooves of the container, the side plate portions are matched with the shapes of the second sliding grooves, and the circumferential length of the second sliding grooves gradually decreases in the direction away from the central axis of the container, so as to limit the side plate portions from being pulled out of the second sliding grooves in the direction away from the central axis of the container.

[0017] The third object of the present application is to provide a container cover assembly comprising the pulp molded connector, which is easy to manufacture and environmentally friendly.

[0018] In order to achieve the above-mentioned objects, the container cover assembly of the present application comprises a container cover and a pulp molded connector, the container cover comprises an end wall and a peripheral wall, the peripheral wall is annular, the end wall is arranged at one axial end of the peripheral wall, the pulp molded connector is arranged in the container cover, a plurality of side plate portions of the pulp molded connector are arranged around the inner periphery of the peripheral wall of the container cover, the connecting structure is arranged on the side of the side plate portion away from the peripheral wall, the end plate portion of the pulp molded connector is matched with the end wall of the container cover, the container cover is a pulp molded cover, and the pulp molded connector is connected with the container cover by adhesion.

[0019] The container cover assembly of the present application is composed of a container cover and a pulp molded connector, which can meet the connection requirements of the container and the container cover, is easy to manufacture, and has the advantages of being environmentally friendly.

[0020] Further, a plurality of first sliding grooves are formed on the peripheral wall of the container cover, and each of the plurality of first sliding grooves is open towards the radial inner side of the container cover and away from the end wall, the plurality of first sliding grooves are arranged along the circumferential direction of the peripheral wall, and the plurality of side plate portions are respectively and one-to-one matched in the plurality of first sliding grooves, the side plate portions are matched with the shapes of the first sliding grooves, and the circumferential length of the first sliding grooves gradually decreases in the direction towards the central axis of the container cover, so as to limit the side plate portions from being pulled out of the first sliding grooves in the direction towards the central axis of the container cover.

[0021] Further, the end plate portion is disc-shaped, and a protruding portion is protruded from the side of the end plate portion away from the end wall, and the protruding portion is adapted to be matched in the mouth ring of the container matched with the container cover.

[0022] The fourth object of the present application is to provide a manufacturing method of a container cover assembly comprising the pulp molded connector, which is easy to manufacture and environmentally friendly.

[0023] To achieve the above object, the manufacturing method of the container cover assembly of the present application is used to manufacture a container cover assembly, comprising the steps of: forming the container cover by pulp molding; forming the pulp molding connecting piece by pulp molding, and bending the connecting part to make the plurality of side plate parts flip to be perpendicular to the end plate part; and inserting the plurality of side plate parts into the plurality of first sliding grooves in the container cover one by one along the axial direction of the container cover and bonding the side plate parts to the peripheral wall, and bonding the end plate part to the end wall.

[0024] The container cover assembly manufactured by the manufacturing method of the container cover assembly of the present application has the advantages of being green and environmentally friendly.

[0025] The fifth object of the present application is to provide a manufacturing method of a container assembly comprising the pulp molding connecting piece, which has the advantages of being easy to manufacture and green and environmentally friendly.

[0026] To achieve the above object, the manufacturing method of the container assembly of the present application is used to manufacture a container assembly, comprising the steps of: forming the container by pulp molding; forming the pulp molding connecting piece by pulp molding, and bending the connecting part to make the plurality of side plate parts flip to be perpendicular to the end plate part; and inserting the plurality of side plate parts into the plurality of second sliding grooves in the mouth ring one by one along the axial direction of the mouth ring and bonding the side plate parts to the mouth ring, and sleeving the round through hole of the end plate part on the mouth ring.

[0027] The container assembly manufactured by the manufacturing method of the container assembly of the present application has the advantages of being green and environmentally friendly. BRIEF DESCRIPTION OF DRAWINGS

[0028] Fig. 1 is a schematic view of the unfolded state of the pulp molding connecting piece of the present application.

[0029] Fig. 2 is a schematic view of the erected state of the pulp molding connecting piece shown in Fig. 1.

[0030] Fig. 3 is a top view of the erected state of the pulp molding connecting piece shown in Fig. 1.

[0031] Fig. 4 is an exploded view of the container cover assembly of the present application.

[0032] Fig. 5 is an assembly view of the container cover assembly shown in Fig. 4.

[0033] Fig. 6 is a sectional view of the container cover assembly shown in Fig. 5.

[0034] Fig. 7 is a schematic view of the container cover shown in Fig. 4.

[0035] Fig. 8 is a top view of the container cover assembly shown in Fig. 5.

[0036] Fig. 9 is a schematic view of the pulp molded connector in an unfolded state according to another embodiment of the present application.

[0037] Fig. 10 is an assembly view of the container assembly according to the present application.

[0038] Fig. 11 is a schematic view of the container according to the present application.

[0039] Fig. 12 is a sectional view of the container according to the present application.

[0040] Brief Description of the Drawings: 10 pulp molded connector; 1 end plate portion; 11 round through hole; 2 side plate portion; 21 connecting structure; 22 cylindrical space; 3 connecting portion; 4 protruding portion; 500 container cap assembly; 5 container cap; 51 end wall; 52 peripheral wall; 53 first sliding groove; 600 container assembly; 6 container; 60 mouth ring; 601 second sliding groove; 602 annular groove; 61 container body. Embodiment of the present application

[0041] In order to further explain the technical solutions of the present application, the present application will be described in detail below through specific embodiments.

[0042] With reference to the drawings, an embodiment of the pulp molded connector 10 according to the present application is described as follows.

[0043] As shown in Figs. 1 and 2, the pulp molded connector 10 is integrally formed by pulp molding and comprises an end plate portion 1, a side plate portion 2 and a connecting portion 3. The pulp molded connector 10 is integrally formed by pulp molding material, for example, can be formed by pulp molding process to be an integrally formed piece comprising the end plate portion 1, the side plate portion 2 and the connecting portion 3. Thus, the pulp molded connector 10 has the advantage of green environmental protection.

[0044] As shown in Figs. 1 and 2, the side plate portion 2 is multiple and arranged around the end plate portion 1, and the connecting portion 3 connects the end plate portion 1 and the side plate portion 2. Exemplarily, the connecting portion 3 is arranged at the edge of the end plate portion 1, and each side plate portion 2 is connected to the end plate portion 1 by at least one connecting portion 3.

[0045] As shown in Figs. 1 and 2, the connecting portion 3 enables the multiple side plate portions 2 to be turned from the peripheral side of the end plate portion 1 to one side of the end plate portion 1 to surround the cylindrical space 22, and the surface of at least one side plate portion 2 facing or facing away from the cylindrical space 22 is formed with the connecting structure 21, which is used for connecting the container cap 5 and the container 6.

[0046] The side plate portions 2 are connected to the end plate portion 1 through the connecting portions 3, so that the side plate portions 2 can be flipped relative to the end plate portion 1, and the pulp molded connector 10 has at least two states, i.e., an unfolded state and a standing state. In the unfolded state, as shown in FIG. 1, the side plate portions 2 are located at the circumferential side of the end plate portion 1, and the side plate portions 2 are parallel or substantially parallel to the end plate portion 1, and the side plate portions 2 are coplanar or substantially coplanar to the end plate portion 1, and the pulp molded connector 10 is unfolded and substantially planar. In the standing state, as shown in FIG. 2, the side plate portions 2 are located at the same side of the end plate portion 1, and the side plate portions 2 jointly form a cylindrical space 22, and each side plate portion 2 is perpendicular or substantially perpendicular to the end plate portion 1, and the end plate portion 1 is located at one end of the cylindrical space 22 in the axial direction.

[0047] In some examples, in the standing state, the connecting structure 21 is formed on the side surface of the side plate portion 2 facing the cylindrical space 22. As shown in FIGS. 3-5, the pulp molded connector 10 in the standing state can be installed in the container cover 5, and a container cover assembly 500 composed of the pulp molded connector 10 and the container cover 5 is formed, and the connecting structure 21 is equivalent to the inner circumferential surface of the container cover assembly 500 (as shown in FIG. 6), and can be connected to the cooperating structure (such as external threads or external buckles, etc.) on the mouth ring 60 (as shown in FIG. 10) of the container 6, so that the container cover assembly 500 is covered and connected to the mouth ring 60 of the container 6.

[0048] In some other examples, in the standing state, the connecting structure 21 is formed on the side surface of the side plate portion 2 away from the cylindrical space 22, and the end plate portion 1 of the pulp molded connector 10 forms a through circular opening 11 at the inner circumferential portion, and the circular opening 11 can be sleeved on the mouth ring 60 of the container 6. As shown in FIGS. 9 and 10, the pulp molded connector 10 in the standing state can be installed outside the mouth ring 60 of the container 6, and a container assembly 600 composed of the pulp molded connector 10 and the container 6 is formed, and the connecting structure 21 is equivalent to the opening outer circumferential surface of the container assembly 600, and can be connected to the cooperating structure (such as internal threads or internal buckles, etc.) in the container cover 5, so that the container cover assembly 500 is covered and connected to the opening of the container assembly 600.

[0049] Thus, according to the pulp molded connector 10 of the embodiment of the present application, by being provided as the pulp molded integrally formed piece including the end plate part 1, the plurality of side plate parts 2, and the connecting parts 3, and by being bendable through the connecting parts 3, the relative positions of the side plate parts 2 and the end plate part 1 can be changed, so that the pulp molded connector 10 can present the unfolded state for facilitating the manufacturing, and can present the surrounding state for meeting the application requirement of being mounted to the container 6 or the container cover 5. In addition, since the plurality of side plate parts 2 are connected to the same end plate part 1 through the corresponding connecting parts 3 respectively, the pulp molded connector 10 can be manufactured as a whole piece individually, so that when the pulp molded connector 10 is assembled with the container 6, the pulp molded connector 10 and the container 6 can be two separate pieces respectively, and can be manufactured individually, so as to meet the manufacturing requirement, and the manufacturing production can be realized. Similarly, when the pulp molded connector 10 is assembled with the container cover 5, the pulp molded connector 10 and the container cover 5 can be two separate pieces respectively, and can be manufactured individually, so as to meet the manufacturing requirement, and the manufacturing production can be realized.

[0050] Exemplarily, when the pulp molded connector 10 is manufactured, the pulp molded connector 10 can be manufactured as a pulp molded blank through the pulp molding forming process, the pulp molded blank includes the end plate part 1, the side plate part 2, and the connecting part 3 connected integrally, at this time, the side plate part 2 is coplanar or substantially coplanar with the end plate part 1, and the pulp molded connector 10 presents the unfolded state, so as to facilitate the forming of the connecting structure 21 on the side plate part 2, and to facilitate the demolding. When the pulp molded connector 10 is applied, the connecting part 3 can be bent, so that the plurality of side plate parts 2 are turned to the same side of the end plate part 1, and when the plurality of side plate parts 2 are perpendicular or substantially perpendicular to the end plate part 1, the pulp molded connector 10 presents the surrounding state, so as to meet the assembly requirement of the pulp molded connector 10 and the container 6 or the container cover 5.

[0051] It should be noted that through the connection of the connecting part 3, the side plate part 2 can be turned relative to the end plate part 1, and the pulp molded connector 10 can have not only the unfolded state and the surrounding state, but also other states, for example, in some optional embodiments of the present application, the pulp molded connector 10 can have other states. In other words, in addition to being parallel to and perpendicular to the end plate part 1, for example, in some optional embodiments of the present application, the side plate part 2 can also be at an acute angle or an obtuse angle with the end plate part 1 through the deformation of the connecting part 3.

[0052] In some embodiments of the present application, in combination with FIG. 2, the plurality of side plate portions 2 surrounding the cylindrical space 22 are arranged at intervals in the circumferential direction of the cylindrical space 22. That is, when the pulp molded connector 10 is in the standing state, the plurality of side plate portions 2 form a split cylinder, and the adjacent two side plate portions 2 have a gap therebetween, so that the circumferential length of each side plate portion 2 can be reduced, thereby saving material, and the plurality of side plate portions 2 do not interfere with each other when the pulp molded connector 10 is turned to the vertical end plate portion 1. Furthermore, the pulp molded connector 10 in this form can be combined with the container lid 5 having the first sliding groove 53 described below, or the container 6 having the second sliding groove 601, thereby improving the combination reliability of the pulp molded connector 10 with the container lid 5 or the container 6, and improving the problem that the pulp molded connector 10 is separated from the container lid 5 or the container 6 when the pulp molded connector 10 is rotated relative to the container lid 5 or the container 6.

[0053] However, the present application is not limited thereto, and for example, in other embodiments of the present application, the pulp molded connector 10 can be configured such that, when the pulp molded connector 10 is in the standing state, the plurality of side plate portions 2 form a continuous cylinder without a gap between the adjacent two side plate portions 2.

[0054] For example, in combination with FIGS. 2 and 3, the circumferential distance L2 between each adjacent two side plate portions 2 of the plurality of side plate portions 2 arranged at intervals in the circumferential direction of the cylindrical space 22 is smaller than the circumferential length L1 of the side plate portion 2. Thereby, the side plate portion 2 has a relatively large area in which the connection structure 21 is provided, thereby improving the connection reliability of the pulp molded connector 10 with the container 6 or the container lid 5. It should be noted that the circumferential lengths L1 of the plurality of side plate portions 2 can be the same or different, and when they are different, the circumferential distance L2 between each adjacent two side plate portions 2 being smaller than the circumferential length L1 of the side plate portion 2 means that the circumferential distance L2 between each adjacent two side plate portions 2 is smaller than the circumferential length L1 of any side plate portion 2.

[0055] Of course, the present application is not limited thereto, and for example, in other embodiments of the present application, the circumferential distance L2 between each adjacent two side plate portions 2 can be configured to be greater than or equal to the circumferential length L1 of the side plate portion 2, and in this case, the connection reliability of the pulp molded connector 10 with the container 6 or the container lid 5 can be improved to some extent by increasing the number of side plate portions 2.

[0056] Exemplarily, in combination with FIG. 1 and FIG. 2, the side plate part 2 is three to five, and the side plate part 2 is formed as an arc-shaped plate or a bendable flat plate. For example, the side plate part 2 can be three, or four, or five. In this way, the structure of the side plate part 2 is simple, and the number is relatively small, which is convenient for the forming and demolding of the pulp molded connecting piece 10, and is convenient for operation when the pulp molded connecting piece 10 changes from the unfolded state to the surrounding state. Of course, the present application is not limited to this, when the required connection diameter is larger, the side plate part 2 can also be provided as more, and when the required connection diameter is smaller, the side plate part 2 can also be provided as two.

[0057] When the side plate part 2 is formed as an arc-shaped plate, the inner arc surface of the side plate part 2 is coplanar with the cylindrical surface of the cylindrical space 22 surrounded by the plurality of side plate parts 2. Since the pulp molded connecting piece 10 is made of pulp molded material, the forming of the side plate part 2 can be flexible, which can be directly formed as an arc-shaped plate to match the shape of the inner circumferential surface of the container cover 5 or the outer circumferential surface of the mouth ring 60 of the container 6; or it can also be first formed as a flat plate, thereby facilitating the forming of the connecting structure 21, and then the side plate part 2 is bent to meet the assembly and connection requirements with the container 6 or the container cover 5, for example, the arc-shaped plate of the side plate part 2 can be bent to match the shape of the inner circumferential surface of the container cover 5 or the outer circumferential surface of the mouth ring 60 of the container 6 during the assembly of the pulp molded connecting piece 10 to the container 6 or the container cover 5, or before the assembly of the pulp molded connecting piece 10 to the container 6 or the container cover 5.

[0058] In some embodiments of the present application, as shown in FIG. 1-3, each side plate part 2 is connected to the end plate part 1 through a corresponding connecting part 3, and the circumferential length L3 of the connecting part 3 is smaller than the circumferential length L1 of the corresponding side plate part 2 along the circumference of the cylindrical space 22, that is, the circumferential length L3 of the connecting part 3 is smaller than the circumferential length L1 of the side plate part 2 connected thereto. In this way, the circumferential length of the connecting part 3 is relatively small, which is beneficial for the bending deformation of the connecting part 3, and the action of turning over the side plate part 2 is more labor-saving and convenient.

[0059] Exemplarily, as shown in FIG. 1-3, the connecting part 3 is arranged at the central position of the corresponding side plate part 2 along the circumference of the cylindrical space 22, that is, the connecting part 3 is arranged at the central position of the side plate part 2 connected thereto, thereby the position of the connecting part 3 relative to the side plate part 2 is in the middle, so that when the side plate part 2 is turned over relative to the end plate part 1, the stress of the connecting part 3 is uniform, and it is not easy to be pulled and broken, and the turning over path of the side plate part 2 is more stable, which is beneficial for the smooth and rapid turning over of the end plate part 1.

[0060] Exemplarily, the circumferential length L3 of the connecting portion 3 is less than 1 / 2 of the circumferential length L1 of the corresponding side plate portion 2, i.e. L3 < L1 / 2, for example, the circumferential length L3 of the connecting portion 3 is 1 / 3, or 1 / 4, etc. of the circumferential length of the corresponding side plate portion 2. Thus, the circumferential length of the connecting portion 3 is smaller, which is more conducive to the bending deformation of the connecting portion 3, and the action of turning over the side plate portion 2 is more labor-saving and convenient.

[0061] Exemplarily, the circumferential length L3 of the connecting portion 3 is less than 1 / 2 of the circumferential length L1 of the corresponding side plate portion 2, and the circumferential length L3 of the connecting portion 3 is also greater than 1 / 5 of the circumferential length L1 of the corresponding side plate portion 2, so that the circumferential length L3 of the connecting portion 3 is not too short, which is conducive to improving the connection reliability of the side plate portion 2 and the end plate portion 1.

[0062] Exemplarily, the wall thickness of the connecting portion 3 is less than or equal to the wall thickness of the side plate portion 2. Thus, the wall thickness of the connecting portion 3 is relatively small, which is conducive to the bending deformation of the connecting portion 3, and the action of turning over the side plate portion 2 is more labor-saving and convenient.

[0063] Of course, the present application is not limited thereto, for example, in other embodiments of the present application, at least one side plate portion 2 can also be connected to the end plate portion 1 through a plurality of connecting portions 3; when the side plate portion 2 is connected to the end plate portion 1 through one connecting portion 3, the connecting portion 3 can also be arranged such that the circumferential length L3 of the connecting portion 3 is greater than the circumferential length L1 of the corresponding side plate portion 2, or the connecting portion 3 can also be arranged to be offset from the center of the side plate portion 2, or the connecting portion 3 can also be arranged to be consistent with or thicker than the wall thickness of the side plate portion 2, etc., so as to meet other requirements such as improving the connection reliability and preventing breakage, etc., which will not be described here.

[0064] In some embodiments of the present application, the connecting structure 21 is formed as a threaded cooperation structure suitable for cooperation with a threaded structure. For example, the threaded structure can be an internal thread arranged on the inner circumference of the container cover 5, or an external thread arranged on the outer circumference of the mouth ring 60 of the container 6. Thus, the detachable connection between the container cover 5 and the container 6 can be achieved by rotating the container cover 5, thereby reducing the connection difficulty of the container cover 5 and the container 6, and facilitating the operation of connecting or disconnecting the container cover 5 to the container 6.

[0065] In some embodiments of the present application, each side plate portion 2 can have a connecting structure 21, and the connecting structure 21 is formed as a protrusion. The protrusions on the plurality of side plate portions 2 are distributed on a spiral line around the cylindrical space 22, and the protrusions are strip-shaped or hemispherical. Specifically, at least two side plate portions 2 need to have the connecting structure 21, i.e. at least two side plate portions 2 need to be provided with the protrusions to participate in forming the threaded cooperation structure. Thus, although the connecting structures 21 are arranged on each side plate portion 2, they can be located on the same spiral line, so as to meet the cooperation requirement with the threaded structure and facilitate the manufacturing.

[0066] Exemplarily, when the protrusions are strip-shaped, a plurality of strip-shaped protrusions can be arranged on the side plate portion 2 along the axial direction of the cylindrical space 22, so as to increase the number of thread turns.

[0067] Exemplarily, when the protrusions are strip-shaped, the length of the strip-shaped protrusions can extend to the two side edges of the side plate portion 2 along the circumferential direction of the cylindrical space 22, so as to increase the length of the strip-shaped protrusions and the reliability of the thread turns.

[0068] Exemplarily, the strip-shaped protrusions are arranged on each side plate portion 2, so as to increase the reliability of the thread turns.

[0069] In addition, the strip-shaped protrusions extend along the extension direction of the helical line, so as to increase the matching area with the thread structure and the connection reliability. The hemispherical protrusions save material and reduce the friction area with the thread structure, so as to make the matching with the thread structure more smooth.

[0070] Alternatively, in other embodiments of the present application, the connecting structure 21 can be shaped as a snap-fit structure suitable for snap-fit, and the snap-fit and the snap-fit structure can be elastic clamping, or rotary clamping, which will not be described herein.

[0071] With reference to the accompanying drawings, embodiments of a container lid assembly 500 comprising a pulp molded connector 10 are described as follows.

[0072] With reference to FIGS. 4-6, the container lid assembly 500 comprises a container lid 5 and a pulp molded connector 10 according to any embodiment of the present application. The container lid 5 comprises an end wall 51 and a peripheral wall 52, the peripheral wall 52 is annular, and the end wall 51 is arranged at the axial end of the peripheral wall 52. The pulp molded connector 10 is arranged in the container lid 5, a plurality of side plate portions 2 are annularly arranged at the inner periphery of the peripheral wall 52, the connecting structure 21 is arranged at the side of the side plate portion 2 away from the peripheral wall 52, and the end plate portion 1 is attached to the end wall 51. That is, the end plate portion 1 and the end wall 51 can be adhesively connected or tightly matched without gap.

[0073] Therefore, the container lid assembly 500 can be composed of the container lid 5 and the pulp molded connector 10, so as to meet the connection requirement of the container 6 and the container lid 5, and to be easy to manufacture and have the advantages of green environmental protection.

[0074] In some embodiments, referring to FIGS. 4-7, the first sliding grooves 53 are formed on the peripheral wall 52 and open towards the radial inner side of the container cover 5 (i.e. the side close to the central axis R1 of the container cover 5) and away from the end wall 51 (e.g. the upward direction shown in FIG. 6), and the first sliding grooves 53 are multiple and arranged along the circumferential direction of the peripheral wall 52, and the plurality of side plate portions 2 are respectively and correspondingly fitted in the plurality of first sliding grooves 53. For example, each side plate portion 2 can be respectively inserted into the corresponding first sliding groove 53 in the direction of the central axis R1 of the container cover 5 towards the end wall 51 (e.g. the downward direction shown in FIG. 6).

[0075] Thus, the pulp molded connector 10 cannot rotate relative to the container cover 5 by the positioning of the plurality of side plate portions 2 in the plurality of first sliding grooves 53, so as to improve the connection reliability of the pulp molded connector 10 and the container cover 5. Moreover, the first sliding grooves 53 can also play a role of pre-positioning when assembling the pulp molded connector 10 and the container cover 5, so as to facilitate the quick connection of the two.

[0076] For example, referring to FIGS. 7 and 8, the side plate portion 2 is matched with the shape of the first sliding groove 53, and the circumferential length L4 of the first sliding groove 53 gradually decreases in the direction towards the central axis R1 of the container cover 5, so as to limit the side plate portion 2 from being pulled out of the first sliding groove 53 in the direction towards the central axis R1 of the container cover 5. That is, the circumferential length L4 of each first sliding groove 53 gradually decreases in the direction from outside to inside along the radial direction of the position (e.g. the direction X shown in FIG. 8), so that the cross section of the first sliding groove 53 is generally fan-shaped, or the first sliding groove 53 is dovetail-shaped, so that the side plate portion 2 inserted into the first sliding groove 53 cannot be pulled out of the first sliding groove 53 in the direction towards the inside along the radial direction (e.g. the direction X shown in FIG. 8).

[0077] Thus, the connection reliability of the pulp molded connector 10 and the container cover 5 can be further improved, so that the pulp molded connector 10 cannot rotate relative to the container cover 5. When the side plate portion 2 is bonded with the peripheral surface of the first sliding groove 53, the first sliding groove 53 can be used to position the side plate portion 2, so as to play a role of positioning the side plate portion 2 when the adhesive solidifies, and the positioning clamp is omitted, so that the connection of the two is more convenient and quick.

[0078] In some embodiments of the present application, referring to FIGS. 4-6, the end plate portion 1 is disc-shaped, so as to facilitate improving the connection area of the end plate portion 1 and the end wall 51 and improving the connection reliability of the pulp molded connector 10 and the container cover 5.

[0079] Exemplarily, referring to Figs. 4-6, a protrusion 4 is provided on one side of the end plate portion 1 of the pulp molded connector 10 in a direction away from the end wall 51 of the container lid 5 (for example, in the embodiment shown in Fig. 6, the end plate portion 1 of the pulp molded connector 10 is located above the end wall 51 of the container lid 5, and the upper surface of the end plate portion 1 is protruded with the protrusion 4), and the protrusion 4 is adapted to fit in the mouth ring 60 of the container 6 that cooperates with the container lid 5, and the protrusion 4 can achieve the effect of improving the sealing performance.

[0080] The container lid 5 is a pulp molded lid, and in addition, the pulp molded connector 10 is also made of pulp molded material, so that the green environmental protection performance of the container lid assembly 500 can be further improved.

[0081] The pulp molded connector 10 is adhesively connected with the container lid 5. In this way, the pulp molded connector 10 and the container lid 5 are connected through the process of adhesion, for example, the side plate portion 2 of the pulp molded connector 10 is adhesively connected to the peripheral wall 52 of the container lid 5, and the end plate portion 1 of the pulp molded connector 10 is adhesively connected to the end wall 51 of the container lid 5, so that the connection operation of the pulp molded connector 10 and the container lid 5 is facilitated, and the connection reliability of the pulp molded connector 10 and the container lid 5 is improved.

[0082] The container lid 5 is a pulp molded lid, and the pulp molded connector 10 is adhesively connected with the container lid 5, so that the two kinds of pulp molded materials can be simply and reliably connected together, which is beneficial to mass production.

[0083] With reference to the accompanying drawings, embodiments of a container assembly 600 containing a pulp molded connector 10 are described as follows.

[0084] Referring to Figs. 9-12, the container assembly 600 includes a container 6 and a pulp molded connector 10, the container 6 includes a mouth ring 60 and a container body 61, the container body 61 defines a containing space, the mouth ring 60 is connected to one end of the container body 61, a plurality of side plate portions 2 are annularly arranged on the outer periphery of the mouth ring 60, and a connecting structure 21 is arranged on the side of the side plate portion 2 away from the mouth ring 60, the end plate portion 1 of the pulp molded connector 10 is formed with a through circular through hole 11 at the inner periphery thereof, and the circular through hole 11 can be sleeved on the mouth ring 60 of the container 6.

[0085] When the end plate part 1 of the pulp molded connector 10 is sleeved outside the mouth ring 60 of the container 6, the end plate part 1 can be located on the side of the side plate part 2 away from the container body 61 (for example, as shown in FIG. 10), or the end plate part 1 can also be located on the side of the side plate part 2 close to the container body 61, so as to realize flexible design and installation of the end plate part 1. As shown in FIG. 10, when the end plate part 1 is located on the side of the side plate part 2 away from the container body 61, the assembly of the pulp molded connector 10 to the mouth ring 60 of the container 6 is more convenient and fast. For example, as shown in FIGS. 10 and 11, an annular groove 602 can be arranged on the outer periphery of the end of the mouth ring 60 away from the container body 61, and the end plate part 1 of the pulp molded connector 10 is arranged around the annular groove 602, which can reduce the difficulty of sleeving the end plate part 1 of the pulp molded connector 10 to the mouth ring 60 of the container 6.

[0086] Therefore, the container assembly 600 can be composed of the container 6 and the pulp molded connector 10, so as to meet the connection requirement of the container 6 and the container cover 5, and is easy to manufacture and has the advantages of green environmental protection.

[0087] In some embodiments, referring to FIGS. 11-12, the second sliding grooves 601 are arranged on the mouth ring 60, the second sliding grooves 601 are respectively open towards the radial outer side of the mouth ring 60 (i.e. the side away from the central axis R2 of the container 6) and the direction away from the container body 61 (for example, the upward direction shown in FIG. 11), the second sliding grooves 601 are multiple and are arranged at intervals along the circumferential direction of the mouth ring 60, and the multiple side plate parts 2 are respectively and correspondingly matched in the multiple second sliding grooves 601. For example, each side plate part 2 can be respectively inserted into the corresponding second sliding groove 601 in the direction of the central axis R2 of the container 6 extending towards the container body 61 (for example, the downward direction shown in FIG. 11).

[0088] Therefore, by limiting the multiple side plate parts 2 through the multiple second sliding grooves 601, the pulp molded connector 10 cannot rotate relative to the mouth ring 60 of the container 6, so as to improve the connection reliability of the pulp molded connector 10 and the container 6. Moreover, when the pulp molded connector 10 and the mouth ring 60 of the container 6 are assembled, the second sliding grooves 601 can also play a role of pre-positioning, so as to facilitate the quick connection of the two.

[0089] Exemplarily, in combination with FIG. 11 and FIG. 12, the side plate part 2 of the pulp molded connecting piece 10 is matched with the shape of the second sliding groove 601 of the container 6, and the circumferential length L5 of the second sliding groove 601 gradually decreases in the direction away from the central axis R2 of the container 6, so as to limit the side plate part 2 of the pulp molded connecting piece 10 from being pulled out of the second sliding groove 601 in the direction away from the central axis R2 of the container 6. That is, the circumferential length L5 of each second sliding groove 601 gradually decreases along the direction from inside to outside of the radial direction of the position where the second sliding groove 601 is located (for example, the direction F shown in FIG. 12), so that the cross section of the second sliding groove 601 is generally a sector, or in other words, the second sliding groove 601 is a dovetail groove, so that the side plate part 2 inserted into the second sliding groove 601 will not be pulled out of the second sliding groove 601 in the direction of the radial direction outward (for example, the direction F shown in FIG. 12).

[0090] Therefore, the connection reliability of the pulp molded connecting piece 10 and the container 6 can be further improved, so that the pulp molded connecting piece 10 will not rotate relative to the mouth ring 60 of the container 6. When the side plate part 2 of the pulp molded connecting piece 10 is bonded with the peripheral surface of the second sliding groove 601 of the container 6, the second sliding groove 601 can be used to limit the side plate part 2, and the positioning effect of the side plate part 2 during the solidification of the glue is achieved, so that the positioning clamp is not needed, and the connection of the two is more convenient and fast.

[0091] The container 6 is a pulp molded container. In addition, the pulp molded connecting piece 10 is also made of pulp molded material, so that the green environmental protection property of the container assembly 600 can be further improved.

[0092] The pulp molded connecting piece 10 is bonded and connected with the container 6, for example, the side plate part 2 is bonded to the peripheral surface of the mouth ring 60 of the container 6, or is bonded to the groove surface of the second sliding groove 601. Therefore, the pulp molded connecting piece 10 and the container 6 are connected through the bonding process, so that the connection operation of the pulp molded connecting piece 10 and the container 6 is facilitated, and the connection reliability of the pulp molded connecting piece 10 and the container 6 is improved.

[0093] The container 6 is a pulp molded container, and the pulp molded connecting piece 10 is bonded and connected with the container 6, so that the two kinds of pulp molded materials can be simply and reliably connected together, which is beneficial to mass production.

[0094] The embodiments of the manufacturing method of the container cover assembly 500 of the present application are described as follows. The container cover assembly 500 is any embodiment of the container cover assembly 500 having the first sliding groove 53 according to the present application.

[0095] The manufacturing method of the container cover assembly 500 comprises the following steps: forming the container cover 5 by pulp molding; forming the pulp molding connecting piece 10 by pulp molding, bending the connecting part 3 of the pulp molding connecting piece 10 to make the plurality of side plate parts 2 flip to be perpendicular to the end plate part 1 to surround a cylindrical space 22; and assembling the pulp molding connecting piece 10 into the container cover 5, inserting the plurality of side plate parts 2 of the pulp molding connecting piece 10 into the plurality of first sliding grooves 53 one by one along the axial direction of the container cover 5 and bonding the plurality of side plate parts 2 to the peripheral wall 52, and bonding the end plate part 1 of the pulp molding connecting piece 10 to the end wall 51 of the container cover 5. The order of the steps of forming the container cover 5 and the steps of forming the pulp molding connecting piece 10 is not limited, and the steps can be performed simultaneously or sequentially. Thus, the manufacturing method of the container cover assembly 500 according to the embodiment of the present application is simple and convenient, and the container cover assembly 500 manufactured has the advantages of green environmental protection.

[0096] The manufacturing method of the container assembly 600 according to the present application is described as follows.

[0097] The manufacturing method of the container assembly 600 comprises the following steps: forming the container 6 by pulp molding; forming the pulp molding connecting piece 10 by pulp molding, bending the connecting part 3 of the pulp molding connecting piece 10 to make the plurality of side plate parts 2 flip to be perpendicular to the end plate part 1 to surround a cylindrical space 22; and inserting the plurality of side plate parts 2 of the pulp molding connecting piece 10 into the plurality of second sliding grooves 601 one by one along the axial direction of the mouth ring 60 of the container 6 and bonding the plurality of side plate parts 2 to the mouth ring 60, and the end plate part 1 of the pulp molding connecting piece 10 is formed with a through circular through hole 11 at the inner surrounding part, and the circular through hole 11 can be sleeved on the mouth ring 60 of the container 6. The order of the steps of forming the container 6 and the steps of forming the pulp molding connecting piece 10 is not limited, and the steps can be performed simultaneously or sequentially. Thus, the manufacturing method of the container assembly 600 according to the embodiment of the present application is simple and convenient, and the container assembly 600 manufactured has the advantages of green environmental protection.

[0098] The manufacturing method of the container cover assembly 500 according to the present application is described as follows.

[0099] The container cover assembly 500 comprises a container cover 5 and a pulp molded connecting piece 10, the container cover 5 is a pulp molded bottle cap formed as a shell with an open end, a plurality of first sliding grooves 53 are axially arranged on the inner circumferential wall of the container cover 5, the cross section of the first sliding groove 53 is a sector, the pulp molded connecting piece 10 is arranged in the container cover 5, and the pulp molded connecting piece 10 comprises an end plate part 1 attached to the closed end of the container cover 5, the end plate part 1 is connected with a side plate part 2 corresponding in position and number to the first sliding grooves 53, the side plate part 2 is fitted in the first sliding groove 53, the side plate part 2 is integrally connected with the outer edge of the end plate part 1 through a connecting part 3 in a curved state, the inner wall of the side plate part 2 is provided with a connecting structure 21 matched with a threaded structure, the connecting structure 21 can be a strip-shaped protrusion extending along the same spiral line, or a plurality of semispherical protrusions distributed on the same spiral line. The container cover assembly 500 of the embodiment is easy to produce and manufacture, and has the characteristics of green environmental protection.

[0100] The manufacturing method of the container cover assembly 500 of the embodiment comprises the following steps: obtaining the pulp molded connecting piece 10 through pulp molding, the obtained pulp molded connecting piece 10 is in an unfolded state, the end plate part 1 and the side plate part 2 are both arranged horizontally, the side plate part 2 is directly formed as an arc-shaped plate or is bent from a flat plate to an arc-shaped plate. The container cover 5 is obtained through pulp molding, the connecting part 3 is bent to make the side plate part 2 flip to be perpendicular to the end plate part 1, the side plate part 2 is slid and fitted into the first sliding groove 53 along the axial direction of the container cover 5, and the end plate part 1 is pasted on the inner surface of the closed end of the container cover 5.

[0101] In the manufacturing method of the container cover assembly 500 of the embodiment, the container cover 5 and the pulp molded connecting piece 10 can be conveniently obtained through pulp molding, the demolding is convenient, the production efficiency is high, and the pulp molding is suitable for mass production, the pulp molding is a plant fiber material, and has the characteristics of green environmental protection.

[0102] The above is only one embodiment of the application and does not limit the application, and any modification, equivalent replacement and improvement made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A pulp molded connector, characterized in that, A paper pulp molded integrated part for a container, comprising: an end plate portion; a side plate portion disposed around the end plate portion; a connecting portion connecting the end plate portion and the side plate portion, capable of being flipped from a circumferential side of the end plate portion to a same side of the end plate portion, a surface of the side plate portion being formed with a connecting structure for connecting a container cover and a container.

2. The pulp molded connector of claim 1, wherein The side plate portion is a plurality of side plate portions capable of being flipped from a circumferential side of the end plate portion to a same side of the end plate portion to surround a cylindrical space, surfaces of the plurality of side plate portions facing or facing away from the cylindrical space being formed with a connecting structure.

3. The pulp molded connector of claim 2, wherein The plurality of side plate portions surrounding the cylindrical space are disposed at intervals along a circumferential direction of the cylindrical space.

4. The pulp molded connector of claim 3, wherein Among the plurality of side plate portions disposed at intervals along the circumferential direction of the cylindrical space, a circumferential interval between each adjacent two side plate portions is less than a circumferential length of the side plate portion, the side plate portion is three to five, and the side plate portion is formed as an arc-shaped plate or a bendable flat plate.

5. The pulp molded connector of claim 2, wherein Each side plate portion is connected to the end plate portion by a corresponding connecting portion along the circumferential direction of the cylindrical space, a circumferential length of the connecting portion is less than a circumferential length of the corresponding side plate portion, and the connecting portion is disposed at a central position of the corresponding side plate portion.

6. The pulp molded connector of claim 2, wherein The connecting structure is formed as a thread matching structure adapted to be screwed with a thread structure, each side plate portion has the connecting structure, the connecting structure is formed as a protrusion, the protrusions on the plurality of side plate portions are distributed on a spiral line surrounding the cylindrical space, and the protrusion is a strip-shaped or a semi-spherical shape.

7. The pulp molded connector of claim 2, wherein The end plate portion of the paper pulp molded connecting piece is formed with a through circular opening at an inner periphery thereof.

8. A container assembly characterized by, A container and the paper pulp molded connecting piece of claim 7 are included, the container includes a mouth ring and a container body, the container body defines a containing space, the mouth ring is connected to one end of the container body, the plurality of side plate portions of the paper pulp molded connecting piece are annularly disposed at an outer periphery of the mouth ring of the container, the connecting structure is disposed at a side of the side plate portion facing away from the mouth ring, the end plate portion of the paper pulp molded connecting piece is sleeved at the mouth ring of the container with the through circular opening thereof, the container is a paper pulp molded container, and the paper pulp molded connecting piece is adhesively connected to the container.

9. The container assembly of claim 8, wherein, A second sliding groove is formed on the mouth ring of the container, the second sliding groove is open toward a radial outer side of the mouth ring and away from the container body, the second sliding groove is a plurality of and disposed at intervals along a circumferential direction of the mouth ring, the plurality of side plate portions of the paper pulp molded connecting piece are respectively and one-to-one matched in the plurality of second sliding grooves of the container, the side plate portion and the second sliding groove are shape-matched, and a circumferential length of the second sliding groove gradually decreases in a direction away from a central axis of the container to limit the side plate portion from being pulled out of the second sliding groove in a direction away from the central axis of the container.

10. A container closure assembly comprising: The container cover and the pulp molded connector of claim 2 or 6, the container cover comprising an end wall and a peripheral wall, the peripheral wall being annular, the end wall being disposed at an axial end of the peripheral wall, the pulp molded connector being disposed in the container cover, the plurality of side plate portions of the pulp molded connector being annularly disposed at an inner periphery of the peripheral wall of the container cover, the connecting structure being disposed at a side of the side plate portion distal to the peripheral wall, the end plate portion of the pulp molded connector being attached to the end wall of the container cover, the container cover being a pulp molded cover, the pulp molded connector being adhesively connected to the container cover.

11. The container lid assembly of claim 10, wherein, The peripheral wall of the container cover is provided with a first sliding groove, the first sliding groove being open toward an inner radial side of the container cover and away from the end wall, the first sliding groove being a plurality of and being disposed along a circumferential direction of the peripheral wall, the plurality of side plate portions being respectively and correspondingly fitted in the plurality of first sliding grooves, the side plate portion and the first sliding groove being matched in shape, a circumferential length of the first sliding groove gradually decreasing in a direction toward a central axis of the container cover, so as to limit the side plate portion from being pulled out of the first sliding groove in a direction toward the central axis of the container cover.

12. The container lid assembly of claim 11, wherein, The end plate portion is disc-shaped, and a protruding portion is protruded from a side of the end plate portion distal to the end wall, the protruding portion being adapted to be fitted in a mouth ring of a container matched with the container cover.

13. A method of manufacturing a container closure assembly, characterised by, A method for manufacturing the container cover assembly of any one of claims 10 or 11 or 12, comprising steps of: forming the container cover by pulp molding; forming the pulp molded connector by pulp molding, and bending the connecting portion so that the plurality of side plate portions are flipped to be perpendicular to the end plate portion; inserting the pulp molded connector into the container cover, inserting the plurality of side plate portions into the plurality of first sliding grooves along an axial direction of the container cover one by one and adhesively connecting the plurality of side plate portions to the peripheral wall, and adhesively connecting the end plate portion to the end wall.

14. A method of manufacturing a container assembly, characterized by, A method for manufacturing the container assembly of any one of claims 8 or 9, comprising steps of: forming the container by pulp molding; forming the pulp molded connector by pulp molding, and bending the connecting portion so that the plurality of side plate portions are flipped to be perpendicular to the end plate portion; inserting the plurality of side plate portions into the plurality of second sliding grooves along an axial direction of the mouth ring one by one and adhesively connecting the plurality of side plate portions to the mouth ring, and sleeving the round through hole of the end plate portion on the mouth ring.

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