WO2021042950A1

WO2021042950A1 - Folding box

Info

Publication number: WO2021042950A1
Application number: PCT/CN2020/108480
Authority: WO
Original assignee: 上海鸿研物流技术有限公司
Priority date: 2019-09-02
Filing date: 2020-08-11
Publication date: 2021-03-11
Also published as: CN110654675A

Abstract

A folding box, having a base (1), a pair of first side plates (2) opposite to each other, and a pair of second side plates (3) opposite to each other and adjacent to the first side plates (2). The first side plates (2) and the second side plates (3) are all hingedly connected to the base (1) and can be folded with respect to the base (1); the folding box further comprises elastic members (31); a first end of the elastic member (31) is detachably mounted inside one end of the second side plate (3); a second end of the elastic member (31) is a free end and is sequentially provided with a first limiting portion (32) and an actuating portion; the first side plate (2) is provided with an operation mechanism (21) and a locking portion (22); the operation mechanism (21) has an operation handle (211); the operation handle (211) is configured to be operably movable with respect to the first side plate (2) between a first position and a second position; the movement of the operation handle (211) toward the second position applies a force to the actuating portion to elastically deform the elastic member (31), so that the locking portion (22) is released from a limiting groove (34). The folding box is convenient to assemble, simple to operate, and easy to maintain, can be quickly unfolded and folded, needs light locking and unlocking forces, and has good operating feel.

Description

Folding box

Cross-reference to related applications

This patent application claims the priority of the Chinese patent application filed on September 02, 2019 with the application number 201910824626.7 and the invention title "folding box". The full text of the above application is incorporated herein by reference.

Technical field

The invention relates to a logistics container, and more particularly to a folding box.

Background technique

When the existing folding box is in use, the side panels should be relatively unfolded and upright, and the two adjacent side panels should be interlocked to form a relatively closed space to accommodate the goods. After the goods are emptied, in order to maximize cost savings, the box body It needs to be folded for recycling, thereby reducing the cost of empty container transportation.

When the side panels of the folding box stand upright, a locking mechanism is required to lock adjacent side panels to each other to achieve relative fixation. Most of the locking structures used in the existing folding boxes have complicated operation steps and complex structures.

In addition, the existing folding box is in a state to be shipped after being unfolded upright when in use. When recycling, it is necessary to knock a pair of side panels to force the side panels to unlock. This kind of operation is more laborious. Although it is convenient for mechanized operation to unlock, it is not conducive to manual operation. Especially when the side panel is knocked to unlock, the risk of the side panel is relatively high. The side panel becomes a consumable item, and the maintenance cost of the later product high.

Therefore, there is a need in the art for a locking structure with simple operation and simple structure and a durable folding box with the locking structure.

Summary of the invention

Based on the existing shortcomings, the present invention provides a locking device on the container, which realizes convenient operation, while also reducing finished parts and wearing parts, and improving product quality and life.

Specifically, the present invention provides a folding box having a base, a pair of opposed first side panels and an adjacent pair of opposed second side panels, the first side panel and the The second side plates are all hinged to the base and can be folded relative to the base, and are characterized in that:

The folding box further includes an elastic member, the first end of the elastic member is detachably mounted on the inner side of one end of the second side plate, and the second end of the elastic member is a free end and is sequentially provided with a first limit. Position and Actuation Department;

The first side plate is provided with an operating mechanism and a locking portion, and the operating mechanism has an operating handle; wherein

The operating handle is arranged to be operable to move relative to the first side plate between a first position and a second position, and the movement of the operating handle toward the second position exerts a force on the actuating portion The elastic member is elastically deformed, so that the locking portion is separated from the first limiting portion.

In an embodiment, the elastic member is configured to reset when the operating handle moves from the second position to the first position.

In an embodiment, the second side plate is provided with an installation hole, and the first end of the elastic member is detachably installed in the installation hole.

In an embodiment, the cross section of the first end of the elastic member is T-shaped, and the cross section of the mounting hole is T-shaped.

In an embodiment, a concave portion is formed on the inner surface of the second side plate at a position corresponding to the elastic member.

In an embodiment, the top surface of the concave portion is separated from the top surface of the elastic member by a predetermined distance; or the bottom surface of the concave portion is separated from the back surface of the elastic member by a predetermined distance. The predetermined distance is set so that the elastic member has a space for upward deformation. In an embodiment, the above-mentioned mounting hole is provided on one side of the concave portion.

In an embodiment, the ends of the first limiting portion and the second limiting portion extend beyond the inner surface of the second side plate.

In an embodiment, the operating handle is further arranged to apply an upward force to the actuating portion when moving toward the second position, so that the elastic member is elastically deformed upward.

In an embodiment, the third limiting protrusion protrudes from the rear surface of the mounting portion.

In an embodiment, the second end of the elastic member is further provided with a second limiting portion, a limiting groove is formed between the first limiting portion and the second limiting portion, wherein the actuating portion It is arranged on the second limiting part.

In an embodiment, the lower surface of the first limiting portion of the elastic member is provided with a guiding inclined surface, and the lower surface of the second limiting portion is a driving surface.

In one embodiment, the elastic member has an elongated body, one end of the elongated body is provided with a mounting portion, and the other end is successively provided with a protruding portion from the elongated body toward the inner side of the folding box and mutually protruding from each other. Spaced apart first and second limiting protrusions, wherein the lower surface of the first limiting protrusion is provided with a guiding inclined surface.

In an embodiment, a third limiting protrusion protrudes from the surface of the mounting portion, a second limiting groove is provided in the mounting hole, and the third limiting protrusion and the second limiting groove Snap.

In an embodiment, the operating mechanism is further provided with a handle resetting member, the handle resetting member is associated with the operating handle and biases the operating handle toward the first position.

In an embodiment, the handle reset member is detachably mounted on the top end of the operating handle.

In an embodiment, the operating handle has an operating handle and a handle driving portion at both ends thereof, and is arranged to be able to move up and down relative to the first side plate.

In an embodiment, the locking portion is a protrusion protruding from one end of the first side plate toward the second side plate.

In one embodiment, the elastic member has an elongated arc-shaped body, one end of the elongated arc-shaped body is provided with a mounting portion, and the back of the other end is integrally extended downward in a direction away from the elongated arc-shaped body出 Said actuating part.

The above is an overview of the application, and may be simplified, summarized and omitted in detail. Therefore, those skilled in the art should realize that this part is only illustrative and is not intended to limit the scope of the application in any way. This summary is neither intended to determine the key features or essential features of the claimed subject matter, nor is it intended to be used as an auxiliary means to determine the scope of the claimed subject matter.

The beneficial effects of the present invention include: the container of the present invention can realize convenient operation of assembly and rapid expansion and folding, convenient operation, suitable for humanized operation, lightweight unlocking and locking force, good operation feel, and easy maintenance.

Description of the drawings

The above and other features of the content of this application will be more fully understood through the following description and appended claims in combination with the drawings. It can be understood that these drawings only depict several embodiments of the content of this application, and therefore should not be considered as limiting the scope of the content of this application. By adopting the drawings, the content of this application will be explained more clearly and in detail.

Figure 1 shows a perspective view of a folding box according to an embodiment of the present invention, wherein the folding box is in an unfolded state;

Figure 2 shows a perspective view of the folding box, where the folding box is in a folded state;

Figure 3 shows another perspective view of the folding box, in which a part of the locking position of the adjacent side panel is cut away to show the connection of the elastic member and the side panel;

FIG. 3A shows an enlarged view of the sectioned position A in FIG. 3;

Figure 4 is a perspective view of an elastic member of an embodiment of the present application;

Figure 5 shows another perspective view of the folding box, in which another part of the locking position of the adjacent side panel is cut away to show the connection of the elastic member and the side panel;

FIG. 6 shows an enlarged view of the cut position B in FIG. 5;

Figure 7 shows another perspective view of the folding box, in which another part of the locking position of the adjacent side panel is cut to show the locking structure of the adjacent side panel, and the side panel is in a locked state;

FIG. 8 shows an enlarged view of the sectioned position C in FIG. 7;

Figure 9 shows another perspective view of the folding box, in which another part of the locking position of the adjacent side panel is cut to show the locking structure of the adjacent side panel, and the side panel is in an unlocked state;

FIG. 10 shows an enlarged view of the sectioned position D in FIG. 9;

Figure 11 shows an exploded perspective view of the long side panel;

Figure 12 shows a perspective view of a folding box folded with a first side panel according to an embodiment of the present invention;

Fig. 13 shows an enlarged view of the installation position E of the elastic member in Fig. 12;

Figure 14 shows a perspective view of a first side panel of a folding box according to an embodiment of the present invention;

15 is an exploded perspective view of an operating handle and its reset structure according to an embodiment of the present invention;

Figure 16 is a perspective view of a first side plate according to an embodiment of the present invention, with an operating handle mounted thereon and partially cut away;

Figure 17 is an enlarged view of part F of Figure 16;

18 is a perspective view of a first side plate according to an embodiment of the present invention, with an operating handle installed thereon and partially cut away;

Figure 19 is an enlarged view of part G of Figure 18;

Figure 20 is a perspective view of the operating mechanism, which is partially cut away;

Figure 21 is an enlarged view of part H of Figure 20;

Figure 22 shows a perspective view of a folding box according to a second embodiment of the present invention, with a partial cutaway;

Figure 23 is an enlarged view of part I in Figure 22, where the side plate is in an unlocked state;

Fig. 24 is an enlarged view of the changing state of part I in Fig. 22, in which the side plate is in a locked state;

FIG. 25 is a perspective view of the elastic member in the embodiment shown in FIG. 22. FIG.

Figure 26 shows a perspective view of a folding box according to a third embodiment of the present invention, with a partial cutaway;

Figure 27 is an enlarged view of part J in Figure 26, in which the side plate is in a locked state;

Fig. 28 is an enlarged view of the changing state of part J in Fig. 26, in which the side plate is in an unlocked state;

Figure 29 is another perspective view of the folding box shown in Figure 26, with one of the short side panels in a folded state;

Figure 30 is an enlarged view of part K in Figure 29;

Figure 31 is a perspective view of the operating handle in the embodiment shown in Figure 26;

Figure 32 is a perspective view of the elastic member in the embodiment shown in Figure 26; and

Fig. 33 is a perspective view of the elastic member in the embodiment shown in Fig. 26 from another angle of view.

detailed description

Hereinafter, each embodiment of the present invention will be described in detail with reference to the accompanying drawings in order to understand the purpose, features and advantages of the present invention more clearly. It should be understood that the embodiments shown in the drawings do not limit the scope of the present invention, but merely illustrate the essential spirit of the technical solution of the present invention.

Unless the context requires otherwise, throughout the specification and claims, the word "including" and its variants, such as "including" and "having" should be understood as an open and inclusive meaning, that is, should be interpreted as "including, but not limited to".

Throughout the specification, reference to "one embodiment" or "an embodiment" means that a specific feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment. Therefore, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification need not all refer to the same embodiment. In addition, specific features, structures, or characteristics can be combined in any manner in one or more embodiments.

As used in this specification and appended claims, the singular forms "a" and "the" include plural referents unless the context clearly dictates otherwise. It should be pointed out that the term "or" is usually used in its meaning including "and/or", unless the context clearly stipulates otherwise.

In the following description, for the purpose of illustrating various disclosed embodiments, certain specific details are set forth to provide a thorough understanding of various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details.

1 and 2 are perspective views of the folding box 100 of the present invention, in which the side panels are in an upright state and a folded state, respectively. As shown in the figure, the folding box 100 includes a base 1, a pair of opposed

first side panels

2, 2 and a pair of opposed

second side panels

3, 3. The

first side plates

2, 2 and the

second side plates

3, 3 are adjacent to each other, and define an internal volume together with the base 1 in an upright state. Preferably, the first side plate 2 and the second side plate 3 are made of high-strength materials such as high-strength plastics. Generally, the length of the first side panel 2 is shorter than the length of the second side panel 3 to form a folding box having a substantially rectangular parallelepiped shape. Therefore, the first side panel 2 is also called a short side panel, and the second side panel 3 is also called a long side panel. However, it should be understood that the first side panel 2 and the second side panel 3 may also have the same length to form a square folding box.

The bottom ends of the first side plate 2 and the second side plate 3 are connected to the four edges of the upper surface of the base 1 through a hinge structure 5. Among the four edges, a pair of opposite edges is provided with an upward protruding wall 4, the height of the protruding wall 4 is approximately equal to the thickness of the side plate provided on the adjacent pair of edges, the height of the protruding wall 4 is defined for accommodating the folding to the base 1 space on the adjacent side panel. Thereby, the first side panel 2 and the second side panel 3 can be successively folded above the base 1, so that the folding box 100 is in a folded state. In the illustrated embodiment, the lower end of the second side plate 3 is hinged to the protruding wall 4 through a hinge structure 5. The adjacent first side plate 2 and the second side plate 3 are releasably locked to each other through the locking structure. The locking structure is formed by the following locking portion 22 and the limiting groove 34. When the locking portion 22 is located in the limiting groove 34, the first side plate 2 and the second side plate 3 are locked relative to each other, and when the locking portion 22 is disengaged from the limiting groove 34, the first side plate 2 and the second side plate 3 The side plate 3 is unlocked.

The first side plate 2 is provided with an operating mechanism 21 and a locking portion 22. The locking portion 22 may be a protrusion formed on the edge of the first side plate 2 or may be formed by the inner edge of the first side plate 2 as shown in the illustrated embodiment. The inner edge includes a flange formed by the portion of the inner layer 23 of the first side panel 2 extending beyond the outer layer 24 and protruding toward the second side panel 3. The operating mechanism 21 has an operating handle 211 and an elastic piece 212. The operating handle 211 is operable to move relative to the first side plate between a first position and a second position. In this embodiment, it moves up and down along the first side plate to drive The locking structure realizes unlocking and locking. The operating handle 211 can be reset under the action of the elastic piece 212, which will be described in further detail below.

As shown in Figures 3-10, the second side plate 3 is provided with an elastic member 31. The first end of the elastic member 31 is detachably mounted on the inner side of one end of the second side plate 3, and the second end of the elastic member 31 is a free end and is provided with a first limiting portion 32 and a second limiting portion 33 in sequence. A limiting slot 34 is formed between the first limiting portion 32 and the second limiting portion 33. When the first side panel 2 and the second side panel 3 of the folding box 100 are in an upright state, the locking portion 22 of the first side panel 2 is located in the limiting groove 34, thereby connecting the first side panel 2 and the second side panel 3 Locked relative to each other. The operating handle 211 can be operably moved relative to the first side plate 2 between a first position below and a second position above. The movement of the operating member 211 toward the second position can drive the elastic member 31 to elastically deform upward, that is, the limiting groove moves upward, so that the locking portion 22 is separated from the limiting groove 34, thereby releasing the first side plate 2 and the second side plate The lock between 3. After the operating handle 211 returns to the first position, the elastic member is reset, that is, it returns to its original state.

Specifically, as shown in FIG. 4, the elastic member 31 has an elongated body 301. One end of the elongated body 301, that is, the first end of the elastic member 31, is provided with a mounting portion 302. The other end of the elongated body 302, that is, the second end of the elastic member is a free end and is successively provided with a first limiting protrusion 32 and a second limiting protrusion 32 and a second limiting protrusion that protrude from the elongated body toward the inside of the folding box and are spaced apart from each other Position protrusion 33. A limiting groove 34 is formed between the first limiting protrusion 32 and the second limiting protrusion 33. The cross section of the mounting portion 302 is T-shaped. Correspondingly, the second side plate is provided with a T-shaped slot, which cooperates with the mounting portion 302 to detachably mount the elastic member 31 on the second side plate.

As shown in FIG. 6, the surface of the mounting portion of the elastic member 31 also protrudes a third limiting protrusion 303. In this embodiment, the third limiting protrusion 303 protrudes from the rear surface of the mounting portion. It should be understood that the third limiting protrusion may also protrude from the other side surface of the mounting portion, for example, protrude from the front side surface. Correspondingly, a second limiting groove 308 is provided in the mounting hole 307 of the second side plate, and the third limiting protrusion 303 is engaged with the second limiting groove to fix the elastic member 31 on the second side plate. This will be further explained below.

The lower surface of the first limiting protrusion 32 is provided with a guiding inclined surface 304. The guiding inclined surface 304 is used to guide the locking portion 22 during the locking process of the folding box, so that the locking portion 22 smoothly enters the limiting groove 34. The second limiting protrusion 33 also serves as an actuating portion, and its lower surface is the driving surface 305. The driving surface 305 cooperates with the end of the operating handle 211 to drive the elastic member 31 to move to achieve unlocking. The driving surface 305 is a flat surface. Correspondingly, the top surface of the operating handle 211 that cooperates with the driving surface 305 is also flat. It should be understood that the matching structure between the second limiting protrusion 33 and the operating handle 211 may also adopt other structures, as long as it can enable the upward movement of the operating handle 211 to drive the second limiting protrusion 33 to move upward, thereby making the limiting protrusion 33 move upward. Move the bit slot upwards.

A recess 306 is formed on the inner surface of the second side plate 3 at a position corresponding to the elastic member 31. The top surface of the recess 306 is spaced a predetermined distance from the top surface of the elastic member 31. The predetermined distance is set so that the elastic member 31 has a space for upward deformation. Thereby, the elastic member 31 can move in the concave portion 306 so that the locking portion 22 on the second side plate can enter or leave the limiting groove 34. A mounting hole 307 is formed on one side of the recess 306. The first end of the elastic member 31 is detachably installed in the mounting hole 307. The cross section of the mounting hole 307 is T-shaped. The mounting hole 307 is also provided with a second limiting groove, which cooperates with the third limiting protrusion on the elastic member to fix the elastic member on the second side plate. After installation, the main body of the elastic member 31 is located in the recess. As a result, accidental damage and partial impact on the use of the box are avoided. The ends of the first limiting portion and the second limiting portion extend beyond the inner surface of the second side plate, so that they can cooperate with the operating handle and the locking portion on the first side plate. As shown in FIGS. 14-15, the operating handle 211 has an operating handle 2111 and a handle driving portion 2112 located at both ends of the operating handle 2111. Specifically, in the illustrated embodiment, the operating handle 211 has a flat shape, and the handle driving portion 2112 is the top surface of both ends of the operating handle 2111, which is preferably a flat surface. The operating handle 211 is arranged to be able to move up and down relative to the first side plate 2. When the operating handle 211 moves upward, its top surface (handle driving portion) presses against the bottom surface of the second limiting portion 33 of the elastic member. As a result, the elastic member is driven to deform upward, so that the limiting groove 34 on the elastic member is separated from the locking portion, and unlocking is achieved. In this embodiment, the width of the operating handle 211 is approximately equal to the width of the first side plate 2. However, it should be understood that the operating handle 211 may also have other shapes without departing from the scope of the present invention.

Refer to Figures 16-19 for the connection of the operating handle 211 and the first side plate 2. In the illustrated embodiment, the first side plate 2 is composed of an inner layer 23 and an outer layer 24, and reinforcing ribs arranged between the inner layer and the outer layer and fixedly connecting the two. The operating handle 211 is installed between the inner layer 23 and the outer layer 24. A window is opened on the outer layer 24 so that the operator can easily access the operating handle 211. In the illustrated embodiment, the outer layer 24 opens a window from the operating handle 2111 corresponding to the operating handle 211 to the bottom of the first side plate 2, but it should be understood that the size of the window can be changed as needed without departing from the scope of the present invention.

The side of the operating handle 211 facing the first side plate 2 is shown in FIG. 15. A card slot 2114 is provided on the side of the operating handle 211 facing the first side plate 2. In the illustrated embodiment, two card slots 2114 are provided. As shown in Figures 16-17, a limiting strip 25 is provided on the outer side of the inner layer 23 of the first side plate 2. The length of the limiting strip 25 is smaller than the length of the slot 2114 and can be inserted into the slot 2114. Thereby, it can slide up and down relative to the slot 2114, so as to realize the up and down movement of the operating handle 211 relative to the first side plate 2. In FIG. 16, the operating handle 211 is partially cut away to show the mating relationship between the card slot 2114 and the limit bar 25. An enlarged view of the cut section is shown in FIG. 17. Opposing groove walls are provided on both sides of the groove 2114, one of the groove walls is provided with a protruding strip 2115 on the edge close to the inner layer 23, and the limiting strip 25 is positioned far away from the inner layer 23 of the first side plate 2. A protruding edge 251 is provided on the edge, and the protruding edge extends toward the wall of the slot where the protrusion 2115 is provided. Therefore, when the limiting strip 25 is inserted into the slot 2114, the protrusion 2115 and the protrusion 251 are engaged with each other, thereby preventing the operating handle 211 from being disengaged from the first side plate 2.

In addition, the operating mechanism 21 further includes a handle resetting member, which is associated with the operating handle 211 and biases the operating handle 211 toward the first position. In the embodiment shown in the drawings, the handle reset member is an elastic piece 212, as shown in FIG. 15. 20-21, the elastic piece 212 is detachably installed on the top of the operating handle 2111. In the illustrated embodiment, the elastic piece 212 is substantially V-shaped. The cross section at one side of the V-shape or the end of one side is a "T" shape. Correspondingly, the top end of the operating handle 2111 of the operating handle 211 is provided with a "T"-shaped card slot 2116. The inner wall of the slot 2115 is also provided with a stop protrusion 2117. Correspondingly, the corresponding part of the elastic piece 212 is also provided with a limiting protrusion 2121. The stopping protrusion 2117 cooperates with the limiting protrusion 2121 to fix the elastic piece 212 to the operating handle 211.

The elastic piece can be inserted into the above-mentioned “T”-shaped slot 2116 in a horizontal direction, so as to realize the connection between the operating handle 211 and the elastic piece 212. The other end of the elastic piece 212 presses against the baffle inside the first side plate. When the operating handle 211 is located at the lower first position, the elastic piece 211 is in the initial state. When the operating handle 211 moves upward, the elastic piece 212 moves upward along with the operating handle 211 and is elastically deformed. When the operating handle 211 moves to the second position, the elastic piece 212 is deformed to the maximum, and its elastic force is also the maximum. This elastic force can reset the operating handle 211 to the first position after the operator releases the operating handle 2111.

However, it should be understood that the handle restoring member is not limited to the elastic piece 212, and a spring may also be provided. For example, one end of the spring is fixed relative to the first side plate 2 and the other end is fixedly connected to the operating handle 211, so that when the operating handle 211 moves upward, a downward pulling force is applied to the operating handle 211.

In addition, in order to achieve a firm connection between the first side plate 2 and the second side plate 3 in the locked state, an engaging structure 40 is also provided on the edge of the side plate. As shown in the figure, the engaging structure can be a known or Any suitable structure to be developed will not be detailed here.

The operation of the folding box 100 according to the invention is as follows. When the folding box 100 needs to be unfolded from the folded state to the used state, the second side panel 3 is first erected, and then the first side panel 2 is erected, so that the locking portion 22 is engaged in the limiting groove 34. When the folding box 100 needs to be folded and stored from the use state, the operating handle 211 is lifted up, and with the movement of the operating handle 211, the handle driving part on the operating handle pushes the elastic member upward, thereby deforming the elastic member 31 upward, causing the lock The portion 22 is separated from the limiting groove 34 to release the lock between the first side plate 2 and the second side plate 3.

Figures 22-25 show a folding box 600 according to another embodiment of the present invention. The difference between the folding box 600 of this embodiment and the folding box 100 of the above-mentioned embodiment lies in the elastic member 601, and the rest is basically the same, which will not be described in detail here. As shown in FIGS. 22-25, the elastic member 601 of the folding box 600 is different from the elastic member 31 of the folding box 100. The main difference is that the elastic member 601 cancels the second limiting protrusion 33 of the elastic member 31. Specifically, the elastic member 601 has an elongated body 602. One end of the elongated body is provided with a mounting portion 603, and the other end is provided with a first limiting protrusion 604 and an actuating portion 605 in sequence. The first limiting protrusion 604 protrudes from the elongated body toward the inner side of the folding box. The lower surface of the first limiting protrusion 604 is provided with a guiding inclined surface. Therefore, when locked, the locking portion 22 on the first side plate 2 is located between the first limiting protrusion 604 and the first side plate.

The operation of the folding box 600 is as follows. When the folding box 600 needs to be unfolded from the folded state to the in-use state, the second side panel 3 is first erected, and then the first side panel 2 is erected, so that the locking portion 22 is engaged with the first limiting protrusion 604 and the first limiting protrusion 604. Between the side panels 2. When the folding box 600 needs to be folded and stored from the use state, the operating handle 211 is lifted up, and with the movement of the operating handle 211, the handle driving part on the operating handle drives the actuating part 605, specifically, the lower part of the actuating part 605 is driven. On the surface, the elastic member 601 is pushed upwards, thereby deforming the elastic member 601 upwards, causing the locking portion 22 to escape from the first limiting protrusion 604, and the locking between the first side plate 2 and the second side plate 3 is released.

Figures 26-33 show a folding box 700 according to another embodiment of the present invention. The difference between the folding box 700 of this embodiment and the folding box 100 of the above-mentioned embodiment lies in the elastic member 701 and the operating handle 705, and the working principle caused by the difference. The rest are basically the same, and will not be described in detail here. As shown in FIGS. 26-33, the elastic member 701 of this embodiment has a long arc-shaped body 702. The elongated arc-shaped body allows the end of the elastic member 701 to protrude from the inner surface of the side plate after the elastic member 701 is installed on the side plate. Therefore, the elongated arc-shaped body 702 itself can be used as the first limiting portion at the same time, and it can play a guiding role during the upright locking of the side plate.

One end of the elongated arc-shaped body 702 is provided with a mounting portion 703, and the other end is used as a first limiting portion 704. Further, the back 706 at the other end of the elongated arc-shaped body 702 integrally extends the actuating portion 707 downward in a direction away from the elongated arc-shaped body. When locked, the locking portion 22 on the first side plate 2 is located between the first limiting portion 704 and the first side plate. Further, the elastic member 701 is also arranged such that after installation, the bottom surface 309 of the concave portion 306 of the second side plate 3 and the back surface 708 of the elastic member are separated by a predetermined distance, thereby providing a space for the elastic member 701 to deform toward the outside of the box.

As shown in FIG. 31, the structure of the operating handle 705 is basically the same as the structure of the operating handle 211 of the folding box 100 of the above embodiment. The only difference is that the end of the operating handle is provided with a guiding structure 7051, and the rest is the same. More details. The guiding structure 7051 is a guiding inclined surface. During the unlocking process, the guiding structure cooperates with the actuating portion 707 on the elastic member to drive the elastic member to deform toward the outside of the box body, so that the locking portion is separated from the first limiting portion 704 on the elastic member to achieve unlocking.

The operation of the folding box 700 is as follows. When the folding box 700 needs to be unfolded from the folded state to the use state, first stand the second side plate 3 upright, and then stand the first side plate 2 upright, so that the locking portion 22 is engaged with the first limiting portion 704 and the first side Between board 2. During the erection of the first side plate 2, the locking portion 211 on it is guided by the part of the elastic member 701 protruding from the inner wall of the box, and crosses the first limiting portion and enters between the first limiting portion and the first side plate. between. When the folding box 700 needs to be folded and stored from the use state, the operating handle 211 is lifted up, and with the movement of the operating handle 211, the handle driving portion on the operating handle 211 drives the actuating portion 705, specifically, the guide slope 7051 of the handle is driven The lower surface of the actuating portion 705 pushes the elastic member 701 toward the outside of the box, thereby deforming the elastic member 701 outward, causing the locking portion 22 to escape from the first limiting portion 704, and releasing the first side plate 2 and the second side plate The lock between 3.

The locking operation of the folding box 100 of the present invention is simple and convenient, and the unlocking and locking force is light, and the side panel will not be damaged, and the service life of the folding box 100 is correspondingly extended. In addition, if any component of the entire locking mechanism is damaged, for example, the handle, the elastic piece and/or the elastic member is damaged, it can also be easily replaced.

The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teaching content of the present invention, those skilled in the art can make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

A folding box, the folding box has a base, a pair of opposite first side panels and an adjacent pair of opposite second side panels, the first side panel and the second side panel are hinged to all The base can be folded relative to the base, and is characterized in that:

The folding box further includes an elastic member, the first end of the elastic member is detachably mounted on the inner side of one end of the second side plate, and the second end of the elastic member is a free end and is sequentially provided with a first limit. Position and Actuation Department;

The first side plate is provided with an operating mechanism and a locking portion, and the operating mechanism has an operating handle; wherein

The operating handle is arranged to be operable to move relative to the first side plate between a first position and a second position, and the movement of the operating handle toward the second position exerts a force on the actuating portion , So that the elastic member is elastically deformed, so that the locking portion is separated from the first limiting portion.
The folding box according to claim 1, wherein the second side plate is provided with an installation hole, and the first end of the elastic member is detachably installed in the installation hole.
The folding box according to claim 1, wherein a recess is formed on the inner surface of the second side plate at a position corresponding to the elastic member.
The folding box according to claim 3, wherein the top surface of the concave portion is separated from the top surface of the elastic member by a predetermined distance; or the bottom surface of the concave portion is separated from the back surface of the elastic member by a predetermined distance.
The folding box according to claim 1, wherein the end of the first limiting portion extends beyond the inner surface of the second side plate.
The folding box according to claim 1, wherein the operating handle is further arranged to apply an upward force to the actuating portion when moving toward the second position, so that the elastic member is elastically deformed upward.
The folding box according to claim 1, wherein the second end of the elastic member is further provided with a second limiting portion, and a limit is formed between the first limiting portion and the second limiting portion. The position slot, wherein the actuating part is arranged on the second limiting part.
7. The folding box according to claim 7, wherein the lower surface of the first limiting portion of the elastic member is provided with a guiding inclined surface, and the lower surface of the second limiting portion is a driving surface.
The folding box according to claim 1, wherein the elastic member has an elongated body, one end of the elongated body is provided with a mounting part, and the other end is provided with a mounting portion in turn from the elongated body. A first limiting protrusion and a second limiting protrusion protruding from the inner side of the folding box and spaced apart from each other, wherein the lower surface of the first limiting protrusion is provided with a guiding inclined surface.
The folding box according to claim 9, wherein a third limiting protrusion protrudes from the surface of the mounting portion, a second limiting groove is provided in the mounting hole, and the third limiting protrusion To engage with the second limiting slot.
The folding box according to claim 1, wherein the operating mechanism is further provided with a handle resetting member, the handle resetting member is associated with the operating handle and deflects the operating handle toward the first position Pressure.
The folding box according to claim 11, wherein the operating handle has an operating handle and a handle driving portion at both ends thereof, and is arranged to be able to move up and down relative to the first side plate; and the handle is reset The piece is detachably installed on the top of the operating handle.
The folding box according to claim 1, wherein the locking portion is a protrusion protruding from one end of the first side plate toward the second side plate.
The folding box according to claim 1, wherein the elastic member has an elongated arc-shaped body, one end of the elongated arc-shaped body is provided with a mounting portion, and the back of the other end faces away from the elongated body. The direction of the arc-shaped body and the downward integrally extend out of the actuating part.