Folding height increasing device for a box

Abstract

The utility model provides a kind of folding heightening device applied to box, comprising: harvesting box;Front baffle, hinged to the front side wall top of harvesting box;Rear baffle, hinged to the rear side wall top of harvesting box;Reset piece is equipped on the front baffle and rear baffle, and reset piece drives itself to recover vertical state;Connecting rod assembly, its both ends are movably connected on the same end upper portion of front baffle and rear baffle, and connecting rod assembly lower side is equipped with suspension curtain;Shielding component, it is equipped in the top of the side wall opposite to suspension curtain of harvesting box.Using the utility model, front baffle can be under the pressure of external component, rear baffle is pulled forward by connecting rod assembly and is turned over, and then folding is completed;It can return to vertical state under the action of reset piece, and it is convenient to increase the volume of box;Front baffle, rear baffle and reset piece and other components are not easy to scratch and damage, and the service life of device is increased.

Description

Technical Field

[0001] This utility model relates to the field of hay box technology for harvesters, and specifically to a folding and heightening device applied to the box body. Background Technology

[0002] With the large-scale planting of corn and the development of agricultural mechanization, the use of corn harvesters for mechanized corn harvesting has become the norm in agricultural production. Among them, corn harvesters that harvest both ears and stalks can simultaneously harvest ears and fodder, achieving higher economic benefits. The hay box of a corn harvester is responsible for collecting fodder, and its volume is one of its most important design parameters. A larger volume can significantly reduce the number of times hay is unloaded, but a taller hay box will increase the overall height of the vehicle, reducing its maneuverability.

[0003] Currently, some manufacturers have developed folding baffle structures with gas springs, which increase volume while maintaining good vehicle maneuverability. However, gas springs are prone to rubbing against plants, have a short service life, and for corn harvesters that require high-intensity continuous operation (such as corn harvesters that harvest both stalks and ears), maintenance costs are high, and repairs affect harvesting efficiency. Utility Model Content

[0004] The technical problem to be solved by this utility model is: how to increase the volume of the box, maintain good passability of the whole vehicle, and increase its service life.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] This utility model provides a folding and heightening device for a box, comprising:

[0007] Harvesting box;

[0008] The front baffle is hinged to the top of the front side wall of the harvesting box;

[0009] The rear baffle is hinged to the top of the rear side wall of the harvesting box;

[0010] Both the front baffle and the rear baffle can be flipped from an upright state to a horizontal state, and both the front baffle and the rear baffle are provided with a reset component that drives itself back to an upright state;

[0011] A connecting rod assembly has its two ends movably connected to the upper part of the same end of the front baffle and the rear baffle, respectively. A hanging curtain is provided on the lower side of the connecting rod assembly, and the lower part of the hanging curtain extends vertically to the inner side of the side wall adjacent to the front side wall of the harvesting box. A shielding assembly is provided on the top of the side wall of the harvesting box opposite to the hanging curtain.

[0012] The beneficial effects of this utility model are:

[0013] By employing this invention, the front baffle can flip forward under the pressure of external components, while the rear baffle is pulled forward and flipped forward by the connecting rod assembly. The connecting rod assembly is lowered in conjunction with the front baffle, thus completing the folding process. This avoids increasing the overall vehicle height and improves maneuverability. When the pressure of external components is removed, the front and rear baffles can return to an upright position under the action of the reset component, while the connecting rod assembly is raised in conjunction with the rear baffle, facilitating an increase in the box volume. Furthermore, the front baffle, rear baffle, and reset component are less prone to scratches and damage, increasing the service life of the device.

[0014] Based on the above technical solution, the present invention can be further improved as follows.

[0015] Furthermore, the front baffle has a notch in the middle, and support plates extending outward from the front baffle are fixed on both the left and right sides of the notch, with a support member fixed between the two support plates.

[0016] By setting a support component that is offset from the hinge axis of the front baffle, external components such as the fodder spraying cylinder can exert a forward flipping torque on the front baffle by pressing down on the support component. This has low dependence on the direction of pressure and good reliability.

[0017] Both the front and rear sidewalls are fixed with torsion spring mounting seats, and torsion springs are sleeved on the torsion spring mounting seats. One end of the torsion spring on the front sidewall contacts the front sidewall, and the other end contacts the front baffle. One end of the torsion spring on the rear sidewall contacts the rear sidewall, and the other end contacts the rear baffle. The front baffle and the front sidewall, as well as the rear baffle and the rear sidewall, are hinged together by hinges.

[0018] Torsion springs and hinges take up little space, will not scratch plants, and have a long service life.

[0019] Furthermore, the shielding component is an extension plate, which is hinged to the top of the side wall of the harvesting box opposite to the hanging curtain; the harvesting box is provided with a driving component that drives the extension plate to rotate around its hinge axis.

[0020] The drive unit drives the extension plate to flip independently of the front and rear baffles, which makes it easy to retain the function of the harvest box flipping to one side of the extension plate for unloading, and has good adaptability.

[0021] Furthermore, a front sealing cloth is provided between the front baffle and the shielding assembly. One end of the front sealing cloth is fixedly connected to the end of the front baffle near the shielding assembly, and the other end of the front sealing cloth is fixedly connected to the front end of the shielding assembly. A rear sealing cloth is provided between the rear baffle and the shielding assembly. One end of the rear sealing cloth is fixedly connected to the end of the rear baffle near the shielding assembly, and the other end of the rear sealing cloth is fixedly connected to the rear end of the shielding assembly.

[0022] It facilitates sealing of straw and prevents straw from leaking out from the gaps between the front baffle and the shielding assembly, and between the rear baffle and the shielding assembly; by controlling the length of the sealing cloth, straw can be prevented from leaking out from the gaps under the sealing cloth.

[0023] Furthermore, the length of the front sealing cloth in the left-right direction is greater than the distance between the front baffle and the shielding assembly; the length of the rear sealing cloth in the left-right direction is greater than the distance between the rear baffle and the shielding assembly.

[0024] The front and rear sealing cloths are in a relaxed state. When the front baffle, rear baffle, and shielding assembly move independently, the front and rear sealing cloths are prevented from being excessively stretched and breaking.

[0025] Furthermore, both ends of the connecting rod assembly are provided with spacers, and the same end of the front baffle and the rear baffle is provided with a pin extending in the left-right direction. The spacer at one end of the connecting rod assembly is movably fitted onto the pin of the front baffle, and the spacer at the other end of the connecting rod assembly is movably fitted onto the pin of the rear baffle.

[0026] When the front and rear baffles are flipped, the spacer of the connecting rod assembly rotates relative to the pin, thereby causing the connecting rod assembly to move forward and downward, which provides good stability; at the same time, it can prevent the pin from being crushed and has a long service life.

[0027] Furthermore, the connecting rod assembly includes a first connecting rod, a second connecting rod, and an adjusting bolt arranged colinearly. Each of the first and second connecting rods has a connecting plate at one end. The adjusting bolt passes through the two connecting plates sequentially from the first connecting rod to the second connecting rod. The adjusting bolt has two nuts, which are clamped on both sides of the connecting plate of the second connecting rod.

[0028] The length of the connecting rod assembly is easy to adjust, ensuring accurate assembly and good adaptability.

[0029] Furthermore, the length of the first connecting rod is greater than the length of the second connecting rod, and the first connecting rod is provided with multiple elongated holes, with the upper edge of the hanging curtain connected to each elongated hole by bolts.

[0030] The elongated holes can accommodate drilling errors at the upper edge of the hanging curtain, ensuring accurate assembly and good adaptability.

[0031] Furthermore, the lower edge of the suspended curtain is provided with multiple counterweights.

[0032] This helps to keep the lower part of the hanging curtain hanging down, preventing the curtain from deforming and causing straw to leak from the bottom. Attached Figure Description

[0033] Figure 1 This is a structural diagram of the box body of this utility model in the heightened state.

[0034] Figure 2 This is a schematic diagram of the structure of this utility model in its folded state.

[0035] Figure 3 This is a schematic diagram of the structure of this utility model.

[0036] Figure 4 This is a structural schematic diagram of the connecting rod assembly.

[0037] Figure 5 This is a schematic diagram of the structure of a suspended curtain.

[0038] In the accompanying drawings, the technical features represented by each reference numeral are as follows:

[0039] 1-Harvesting box; 11-Front side wall; 12-Right side wall; 13-Rear side wall; 14-Left side wall;

[0040] 2-Front baffle; 21-Support plate; 22-Supporting component; 23-Front sealing cloth;

[0041] 3-Rear baffle; 31-Rear sealing cloth;

[0042] 4-Reset component;

[0043] 5-Connecting rod assembly; 51-Spacer; 52-First connecting rod; 53-Second connecting rod; 54-Adjusting bolt; 55-Elongated hole; 6-Hanging curtain; 7-Extension plate; 8-Counterweight block. Detailed Implementation

[0044] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0045] This utility model refers to Figure 1-5 .

[0046] This utility model provides a folding and heightening device for a box, comprising:

[0047] Harvesting box 1;

[0048] The front baffle 2 is hinged to the top of the front side wall 11 of the harvest box 1;

[0049] The rear baffle 3 is hinged to the top of the rear side wall 13 of the harvest box 1;

[0050] Both the front baffle 2 and the rear baffle 3 can be flipped from the vertical state to the horizontal state. Both the front baffle 2 and the rear baffle 3 are provided with a reset member 4 that drives itself to return to the vertical state.

[0051] The connecting rod assembly 5 has its two ends movably connected to the upper part of the same end of the front baffle 2 and the rear baffle 3, respectively. The lower side of the connecting rod assembly 5 is provided with a hanging curtain 6, and the lower part of the hanging curtain 6 extends vertically to the inner side of the side wall of the harvest box 1 adjacent to the front side wall 11.

[0052] The shielding component is located on the top of one side wall of the harvest box 1, opposite to the hanging curtain 6.

[0053] principle:

[0054] When the corn harvester is ready to move, the forage spray nozzle rotates downwards and rests on the front side wall 11. Under the pressure of the forage spray nozzle, the front baffle 2 flips forward around its hinge axis. At the same time, the rear baffle 3 is pulled forward around its hinge axis via the connecting rod assembly 5, and the connecting rod assembly 5 is lowered, thus completing the folding. When the corn harvester is ready to operate, the forage spray nozzle rises, the front baffle 2 loses pressure, and under the action of the reset component 4, both the front baffle 2 and the rear baffle 3 return to their upright state, thus completing the raising of the harvesting box 1.

[0055] The shielding component can adopt the structure of connecting rod assembly 5 and hanging curtain 6, or it can adopt the original heightened folding component on the top of one side wall of harvesting box 1. When harvesting box 1 is a hay box, the original heightened folding component on the top of one side wall of harvesting box 1 is an extension plate 7. The extension plate 7 is part of the hay box. During unloading, the extension plate 7 is controlled by the hydraulic cylinder of the hay box to flip and open outward. When the hay box returns to its original position, the extension plate 7 is controlled by the hydraulic cylinder of the hay box to return to its original position. The front baffle 2 and the rear baffle 3 do not need to be connected to the extension plate 7. When the gap is small, it will not cause a lot of hay to leak out, so it will not affect the use. Therefore, if it is necessary to retain the independent flipping and unloading characteristics of the extension plate 7 and similar structures, or if the original top of one side of harvesting box 1 has an independent heightened folding component, it can be retained as a shielding component; if not, the structure of connecting rod assembly 5 and hanging curtain 6 can be used as a shielding component.

[0056] Preferably, the harvesting box 1 is rectangular. The two ends of the connecting rod assembly 5 are movably connected to the upper right side of the front baffle 2 and the upper right side of the rear baffle 3, respectively; the right ends of the front baffle 2 and the rear baffle 3 are the same end, and the left ends of the front baffle 2 and the rear baffle 3 are the same end. The lower part of the hanging curtain 6 extends vertically to the inner side of the right side wall 12 of the harvesting box 1. The shielding assembly is located at the top of the left side wall 14 of the harvesting box 1. The resetting component 4 can be made of elastic rope, spring sheet, or other components; one end of the resetting component 4 of the front baffle 2 is connected to the front baffle 2, and the other end is connected to the front side wall 11; one end of the resetting component 4 of the rear baffle 3 is connected to the rear baffle 3, and the other end is connected to the rear side wall 13.

[0057] In summary, by adopting this utility model, the front baffle 2 can flip forward under the pressure of external components, while the rear baffle 3 is pulled forward and flipped forward by the connecting rod assembly 5. The connecting rod assembly 5 is lowered in conjunction, thereby completing the folding, avoiding an increase in the overall vehicle height and improving passability. When the pressure of external components is removed, the front baffle 2 and the rear baffle 3 can return to the upright state under the action of the reset component 4, while the connecting rod assembly 5 is raised in conjunction, which facilitates the increase of the box volume. In addition, the front baffle 2, the rear baffle 3, and the reset component 4 are not easily scratched and damaged, increasing the service life of the device.

[0058] Furthermore, the front baffle 2 has a notch in the middle, and support plates 21 extending outward from the front baffle 2 are fixed on both the left and right sides of the notch, and a support member 22 is fixed between the two support plates 21.

[0059] Preferably, the notch divides the front baffle 2 into two sections. The supporting member 22 is a rod.

[0060] By setting a support member 22 that is offset from the hinge axis of the front baffle 2, external components such as the fodder spraying cylinder can exert a forward flipping torque on the front baffle 2 by pressing down on the support member 22. This has low dependence on the pressure direction and good reliability.

[0061] Furthermore, torsion spring mounting seats are fixed on both the front sidewall 11 and the rear sidewall 13, and torsion springs are sleeved on the torsion spring mounting seats. One end of the torsion spring on the front sidewall 11 contacts the front sidewall 11, and the other end contacts the front baffle 2. One end of the torsion spring on the rear sidewall 13 contacts the rear sidewall 13, and the other end contacts the rear baffle 3. The front baffle 2 and the front sidewall 11, as well as the rear baffle 3 and the rear sidewall 13, are all hinged together.

[0062] Note: The torsion spring is the reset component 4. The torsion spring mounting base is an existing product, which has a pin for connecting the torsion spring.

[0063] Torsion springs and hinges take up little space, will not scratch plants, and have a long service life.

[0064] Furthermore, the shielding component is an extension plate 7, which is hinged to the top of the side wall of the harvest box 1 opposite to the hanging curtain 6; the harvest box 1 is provided with a driving component that drives the extension plate 7 to rotate around its hinge axis.

[0065] Preferably, the driving component is a hydraulic cylinder, with the fixed end of the cylinder hinged to the side wall of the harvesting box 1 and the moving end of the cylinder hinged to the extension plate 7. The structure of the harvesting box 1 flipping over to unload material onto the extension plate 7 is existing technology and is unrelated to the technical problem solved by this utility model.

[0066] The drive unit drives the extension plate 7 to flip independently of the front baffle 2 and the rear baffle 3, which makes it easy to retain the function of the harvest box 1 to flip and unload to one side of the extension plate 7, and has good adaptability.

[0067] Furthermore, a front sealing cloth 23 is provided between the front baffle 2 and the shielding assembly. One end of the front sealing cloth 23 is fixedly connected to the end of the front baffle 2 near the shielding assembly, and the other end of the front sealing cloth 23 is fixedly connected to the front end of the shielding assembly. A rear sealing cloth 31 is provided between the rear baffle 3 and the shielding assembly. One end of the rear sealing cloth 31 is fixedly connected to the end of the rear baffle 3 near the shielding assembly, and the other end of the rear sealing cloth 31 is fixedly connected to the rear end of the shielding assembly.

[0068] Preferably, the front sealing cloth 23, the rear sealing cloth 31, and the hanging curtain 6 are made of canvas.

[0069] It facilitates sealing of the straw and prevents the straw from leaking out from the gap between the front baffle 2 and the shielding component, and the gap between the rear baffle 3 and the shielding component; by controlling the length of the sealing cloth, the straw can be prevented from leaking out from the gap under the sealing cloth.

[0070] Furthermore, the length of the front sealing cloth 23 in the left-right direction is greater than the distance between the front baffle 2 and the shielding assembly; the length of the rear sealing cloth 31 in the left-right direction is greater than the distance between the rear baffle 3 and the shielding assembly.

[0071] When the front sealing cloth 23 and the rear sealing cloth 31 are in a relaxed state, and the front baffle 2, the rear baffle 3 and the shielding assembly move independently, the front sealing cloth 23 and the rear sealing cloth 31 are prevented from being overly stretched and breaking.

[0072] Furthermore, both ends of the connecting rod assembly 5 are provided with spacers 51, and the same end of the front baffle 2 and the rear baffle 3 is provided with a pin extending in the left and right direction. The spacer 51 at one end of the connecting rod assembly 5 is movably sleeved on the pin of the front baffle 2, and the spacer 51 at the other end of the connecting rod assembly 5 is movably sleeved on the pin of the rear baffle 3.

[0073] When the front baffle 2 and the rear baffle 3 are flipped, the spacer 51 of the connecting rod assembly 5 rotates relative to the pin, thereby causing the connecting rod assembly 5 to move forward and downward, which has good stability; at the same time, it can avoid the pin being crushed and has a long service life.

[0074] Furthermore, the connecting rod assembly 5 includes a first connecting rod 52, a second connecting rod 53 and an adjusting bolt 54 arranged in a collinear manner. The first connecting rod 52 and the second connecting rod 53 are each provided with a connecting plate at their opposite ends. The adjusting bolt 54 passes through the two connecting plates sequentially from the first connecting rod 52 to the second connecting rod 53. The adjusting bolt 54 is provided with two nuts, which are clamped on both sides of the connecting plate of the second connecting rod 53.

[0075] The length of the connecting rod assembly 5 is easy to adjust, ensuring accurate assembly and good adaptability.

[0076] Furthermore, the length of the first connecting rod 52 is greater than the length of the second connecting rod 53, and the first connecting rod 52 is provided with a plurality of elongated holes 55, and the upper edge of the hanging curtain 6 is connected to each elongated hole 55 by bolts.

[0077] Note: Since the length of the first connecting rod 52 is much greater than the length of the second connecting rod 53, the elongated holes 55 can be distributed only on the first connecting rod 52; in addition, the elongated holes 55 can also be distributed on the second connecting rod 53. Preferably, the elongated holes 55 are oblong holes, and the width of the elongated holes 55 is greater than the diameter of the bolt.

[0078] The elongated hole 55 can accommodate the drilling error of the upper edge of the hanging curtain 6, ensuring accurate assembly and good adaptability.

[0079] Furthermore, the lower edge of the suspended curtain 6 is provided with multiple counterweights 8.

[0080] This helps to keep the lower part of the hanging curtain 6 hanging down, preventing the hanging curtain 6 from deforming and causing grass to leak from the bottom.

[0081] In the description of this utility model, it should be understood that if descriptive terms indicating orientation, direction, or positional relationship appear, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," etc., the orientation or positional relationship indicated in this specification is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of understanding this utility model and simplifying the description, and does not indicate or imply that the part, element, or whole referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0082] Furthermore, if sequential descriptive terms such as "first," "second," etc., appear, their purpose in this specification is for ease of understanding or simplification. For example, to distinguish multiple technical features of the same type or function, which must be mentioned separately, this specification may use prefixes or suffixes to differentiate them. Therefore, they should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first," "second," etc., may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0083] In this utility model, if descriptive terms describing structural relationships are used, such as "installation," "connection," "joining," and "fixing," they should be interpreted broadly unless otherwise explicitly specified and limited. For example, "installation," "connection," and "joining" can refer to a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. "Fixing" can refer to an integral fixation or a detachable fixation using fasteners; it can be a direct fixation or a fixation through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood based on the specific circumstances, the context, and the coherence of the preceding and following text.

[0084] In this utility model, if descriptive terms containing subordinate or connecting meanings appear, such as "above" or "below" the second feature, they should not be interpreted restrictively unless otherwise explicitly specified and limited. For example, "above" or "below" can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. For those skilled in the art, the specific meaning of the above descriptive terms in this utility model can be understood according to the specific circumstances, the context, and the coherence of the preceding and following text.

[0085] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0086] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments, examples, and features described in this specification, and such combinations or integrations should all fall within the scope of the present invention.

[0087] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Variations, modifications, substitutions, and modifications made by those skilled in the art to the above embodiments within the scope of information available through public channels and in conjunction with the technical teachings given in this application are still covered within the protection scope of this application.

Claims

1. A folding height increasing device applied to a box, characterized in that: include: Harvesting box (1); The front baffle (2) is hinged to the top of the front side wall (11) of the harvest box (1); The rear baffle (3) is hinged to the top of the rear side wall (13) of the harvest box (1); Both the front baffle (2) and the rear baffle (3) can be flipped from the vertical state to the horizontal state. Both the front baffle (2) and the rear baffle (3) are provided with a reset member (4) that drives itself to return to the vertical state. The connecting rod assembly (5) is movably connected at both ends to the upper part of the same end of the front baffle (2) and the rear baffle (3). The connecting rod assembly (5) is provided with a hanging curtain (6) on the lower side. The lower part of the hanging curtain (6) extends vertically to the inner side of the side wall of the harvest box (1) adjacent to the front side wall (11). The shielding component is located on the top of the side wall of the harvest box (1) opposite to the hanging curtain (6).

2. The folding jacking device for a box according to claim 1, wherein: The front baffle (2) has a notch in the middle, and support plates (21) extending outward from the front baffle (2) are fixed on both the left and right sides of the notch. A support member (22) is fixed between the two support plates (21).

3. The folding jacking device for a box according to claim 1, wherein: Both the front sidewall (11) and the rear sidewall (13) are fixed with torsion spring mounting seats, and torsion springs are sleeved on the torsion spring mounting seats. One end of the torsion spring on the front sidewall (11) is in contact with the front sidewall (11), and the other end is in contact with the front baffle (2). One end of the torsion spring on the rear sidewall (13) is in contact with the rear sidewall (13), and the other end is in contact with the rear baffle (3). The front baffle (2) and the front sidewall (11) and the rear baffle (3) and the rear sidewall (13) are both hinged together by hinges.

4. The folding jacking device for a box according to claim 1, wherein: The shielding component is an extension plate (7), which is hinged to the top of the side wall of the harvest box (1) opposite to the hanging curtain (6); the harvest box (1) is provided with a driving component that drives the extension plate (7) to rotate around its hinge axis.

5. The folding jacking device for a box according to claim 4, wherein: A front sealing cloth (23) is provided between the front baffle (2) and the shielding assembly. One end of the front sealing cloth (23) is fixedly connected to the end of the front baffle (2) near the shielding assembly, and the other end of the front sealing cloth (23) is fixedly connected to the front end of the shielding assembly. A rear sealing cloth (31) is provided between the rear baffle (3) and the shielding assembly. One end of the rear sealing cloth (31) is fixedly connected to the end of the rear baffle (3) near the shielding assembly, and the other end of the rear sealing cloth (31) is fixedly connected to the rear end of the shielding assembly.

6. The folding jacking device for a box according to claim 5, wherein: The length of the front sealing cloth (23) in the left-right direction is greater than the distance between the front baffle (2) and the shielding assembly; the length of the rear sealing cloth (31) in the left-right direction is greater than the distance between the rear baffle (3) and the shielding assembly.

7. The folding jacking device for a box according to claim 1, wherein: Both ends of the connecting rod assembly (5) are provided with spacers (51). The front baffle (2) and the rear baffle (3) are provided with pins extending in the left and right direction at the same end. The spacer (51) at one end of the connecting rod assembly (5) is movably sleeved on the pin of the front baffle (2), and the spacer (51) at the other end of the connecting rod assembly (5) is movably sleeved on the pin of the rear baffle (3).

8. The folding riser for a box of any of claims 1-7, wherein: The connecting rod assembly (5) includes a first connecting rod (52), a second connecting rod (53), and an adjusting bolt (54) arranged in a collinear manner. The first connecting rod (52) and the second connecting rod (53) are each provided with a connecting plate at their opposite ends. The adjusting bolt (54) passes through the two connecting plates sequentially from the first connecting rod (52) to the second connecting rod (53). The adjusting bolt (54) is provided with two nuts, which are clamped on both sides of the connecting plate of the second connecting rod (53).

9. The folding jacking device for a box according to claim 8, wherein: The length of the first connecting rod (52) is greater than the length of the second connecting rod (53). The first connecting rod (52) is provided with multiple elongated holes (55), and the upper edge of the hanging curtain (6) is connected to each elongated hole (55) by bolts.

10. The folding jacking device for a box according to claim 1, wherein: The lower edge of the suspended curtain (6) is provided with multiple counterweights (8).

Images