CN213214495U

CN213214495U - Root puncture preventing device

Info

Publication number: CN213214495U
Application number: CN202021881239.1U
Authority: CN
Inventors: 吴国顺; 吴书昊; 冯鸿杰; 黄伟棠; 陈俊汝
Original assignee: Zhaoqing Construction Engineering Co ltd
Current assignee: Zhaoqing Construction Engineering Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-18
Anticipated expiration: 2030-09-01

Abstract

The utility model discloses a root puncture preventing device, which comprises a box body and a partition plate, wherein the box body is provided with an opening, and the side wall of the box body is provided with a first drainage hole; the partition plate is arranged in the box body, the partition plate and the bottom plate of the box body are arranged at intervals to form a water storage cavity, the opening position of the first water drainage hole is located between the partition plate and the bottom plate of the box body, and the partition plate is further provided with a second water drainage hole. According to the root puncture prevention device, the box body enables the root system of the vegetation to be in the box body, and the root system cannot damage a building roof, so that the root puncture prevention effect is achieved; when the vegetation box is used, planting soil is filled above the partition plate of the box body, vegetation is cultivated through the planting soil, and rainwater enters the water storage cavity through the first drainage hole in rainy days to play a role in regulating and storing the rainwater and provide moisture required by vegetation growth; meanwhile, the redundant water body is discharged through the second drain hole, so that the problems that the root system of the vegetation is soaked in water to cause root rot and the like due to excessive water are avoided.

Description

Root puncture preventing device

Technical Field

The utility model relates to a building or afforestation technical field especially relates to a prevent root piercing depth.

Background

With the continuous development of economy, the process of urbanization is also continuously promoted, so that a large number of people are rapidly concentrated towards cities, particularly large and medium-sized cities, urban buildings are more and more dense, and the shortage of land, the reduction of greenery, traffic congestion, environmental pollution and the like are also main symptoms which slowly hinder the urbanization development. How to improve the living environment and optimize the urban function becomes a main problem in front of urban constructors.

Urban residents carry out production and life every day, such as household cooking ranges, air-conditioning operation, factory production, public transportation and other various energy combustion, and the like, and the production and life emit a large amount of heat, so that the urban area adds much extra heat compared with the suburban area. The more densely populated urban building groups have caused this artificial heat removal to approach or exceed solar radiant heat, the more significant the effect on urban heating. This phenomenon of higher inside air temperature in cities than in surrounding suburbs is commonly referred to as the "urban heat island effect", which is one of the most typical features ubiquitous in cities.

The green building is a scheme for solving the urban heat island effect, and the planting roof is a greening form for paving soil in a container or a planting template to plant plants so as to cover the roof of the building or an underground building roof. However, if the design of the planted roof is unreasonable or the construction operation is improper, the phenomenon of water leakage due to structural cracking can be easily caused, and meanwhile, the complicated root system of the plant can generate huge destructive power to cause the root system to penetrate through a floor slab of the roof, so that the structural cracking is enlarged, the root puncture condition is also caused, and further the quality accident of the building is caused.

SUMMERY OF THE UTILITY MODEL

Based on this, there is a need for an anti-root-puncture device; the root puncture preventing device can play a role in preventing root puncture.

The technical scheme is as follows:

one embodiment provides an anti-root-piercing device comprising:

the box body is provided with an opening, and the side wall of the box body is provided with a first drainage hole; and

the partition plate is arranged in the box body, the partition plate and the bottom plate of the box body are arranged at intervals to form a water storage cavity, the first water drainage hole is formed between the partition plate and the bottom plate of the box body, and the partition plate is further provided with a second water drainage hole.

According to the root puncture preventing device, the box body enables the root system of the vegetation to be in the box body, and the root system cannot damage a building roof, so that the root puncture preventing effect is achieved; when the vegetation box is used, planting soil is filled above the partition plate of the box body, vegetation is cultivated through the planting soil, and rainwater enters the water storage cavity through the first drainage hole in rainy days to play a role in regulating and storing the rainwater and provide moisture required by vegetation growth; meanwhile, the redundant water body is discharged through the second drain hole, so that the problems that the root system of the vegetation is soaked in water to cause root rot and the like due to excessive water are avoided.

The technical solution is further explained below:

in one embodiment, an aquifer is arranged in the aquifer cavity and is flatly paved on the bottom plate of the box body.

In one embodiment, the number of the first drain holes is at least two, and at least two first drain holes are arranged at intervals along the periphery of the box body;

the second drain holes are at least two, and the at least two second drain holes are arranged on the partition plate at intervals.

In one embodiment, the box body is further provided with a planting layer inside, and the planting layer is laid on the upper portion of the partition plate.

In one embodiment, a reserved butt joint part is further arranged on the side plate of the box body, and the height of the reserved butt joint part is higher than the top height of the planting layer.

In one embodiment, the reserved butt joint parts are provided with at least two, and the at least two reserved butt joint parts are arranged at intervals along the periphery of the box body.

In one embodiment, the root puncture preventing device further comprises a frame, wherein the frame is provided with a supporting space corresponding to the shape of the box body, and the box body is arranged in the supporting space of the frame.

In one embodiment, the frame comprises a bottom frame, a top frame and a plurality of connecting rods, the bottom frame is arranged corresponding to the top frame, and two ends of each connecting rod are respectively connected with the top frame and the bottom frame.

In one embodiment, the frame further comprises at least two reinforcing rods, and the reinforcing rods are arranged in the frame of the bottom frame at intervals.

In one embodiment, the box body is a rectangular box body, and the frame is a rectangular frame structure corresponding to the box body.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic illustration of an internal cross-sectional view of an anti-root-piercing device in one embodiment;

FIG. 2 is a schematic front view of the root puncture preventing device in the embodiment of FIG. 1;

FIG. 3 is a schematic top view of the root puncture preventing device in the embodiment of FIG. 1;

FIG. 4 is a schematic structural diagram of a box body of the root puncture prevention device in the embodiment of FIG. 1;

FIG. 5 is a schematic diagram of a position of a reserved butt joint part on the box body in the embodiment of FIG. 1;

FIG. 6 is a schematic view of the overall structure of the case body of the embodiment of FIG. 1 when the case body is unfolded;

fig. 7 is a schematic structural diagram of a frame of the root puncture prevention device in the embodiment of fig. 1.

Reference is made to the accompanying drawings in which:

100. a box body; 110. opening the mouth; 120. a first drain hole; 130. a water storage cavity; 140. a aquifer; 150. planting a layer; 160. reserving a butt joint part; 200. a partition plate; 210. a second drain hole; 300. a frame; 310. a bottom frame; 320. a top frame; 330. a connecting rod; 340. a reinforcing rod.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings:

in order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

With the gradual warming of global climate, green buildings which can be continuously developed are produced. The three-dimensional greening is popularized in cities, and the landscape garden lawn is built on the building roof, so that the air can be purified to relieve the urban heat island effect, part of rainwater can be received during rainstorm, a large amount of rainwater is prevented from directly pouring onto the urban ground in a short time, and the burden of urban drainage facilities is reduced.

In general, the treatment measure for preventing root penetration is to add a rigid waterproof layer and two rigid waterproof layers on a floor waterproof layer of a building roof for protection. However, due to the brittle, easily-cracking nature of concrete, this treatment not only reduces the useful life of the rigid waterproofing layer, but the developed root system of vegetation (e.g., landscape trees) can still damage the concrete layer.

Still another common practice is to use a polymer waterproof roll with root penetration resistance, however, the waterproof roll has high requirements on weather and construction process, and heating during construction easily generates a large amount of toxic and harmful gases, resulting in air pollution, and meanwhile, the waterproof roll has poor durability and relatively high cost. In addition, the construction joint of the waterproof coiled material very easily leads to the opening, and the life of the material is also short, easily makes the root organically destroy the waterproof and puncture-proof coiled material, finally leads to the waterproof and puncture-proof function failure and causes the structure seepage, all plants, planting soil and upper structure and damaged waterproof coiled material above the building roof structure need to be removed integrally during maintenance, the mending leakage operation of the building roof structure can be carried out later, the maintenance is very inconvenient, the engineering quantity is large, the cost is high, the construction period is long.

Referring to fig. 1 to 4, one embodiment provides a root penetration preventing device including a case 100 and a partition plate 200.

The box body 100 is used for containing planting soil for vegetation and the like, the vegetation grows in the box body 100, the box body 100 has the function of blocking the root systems of the vegetation and preventing the root systems of the vegetation from deeply penetrating into a building roof structure, so that the protection function on the building roof is realized, and the root penetration prevention function is realized; simultaneously, the vegetation is planted in box 100, when needs clear up or carry the vegetation, directly to box 100 hoist and mount and carry can, need not to carry out numerous and diverse processing to building roof structure, it is more convenient to adopt box 100 to carry and hoist and mount the operation.

The partition plate 200 is arranged in the box body 100, the size of the partition plate 200 is consistent with that of the box body 100, the partition plate 200 and the bottom plate of the box body 100 are arranged at intervals to form a water storage cavity 130, and when raining, rainwater can permeate into the water storage cavity 130 through the second drain holes 210 to provide a wet environment with good vegetation growth. In addition, when the water in the water storage cavity 130 is too much, the water can be discharged through the first water discharge holes 120, so that the situation that the root system is rotten or necrotic due to the fact that the water is too much is avoided, and meanwhile the first water discharge holes 120 can enable the root system part of the vegetation to have a good ventilation environment, and growth and development of the vegetation are promoted.

In one embodiment, referring to fig. 4, the box 100 has an opening 110, and a first drain hole 120 is formed on a side wall of the box 100.

As shown in fig. 4, the box 100 may be a rectangular box 100, and the top of the box 100 is not covered to form an opening 110 for placing planting soil and planting vegetation.

As shown in fig. 4, the side plate of the box 100 is provided with a first drainage hole 120, and the opening position of the first drainage hole 120 is located below the position of the partition plate 200, so that the water in the water storage cavity 130 is discharged through the first drainage hole 120 under the excessive condition, and the root system of the vegetation caused by the excessive water is prevented from being soaked or necrotic.

In one embodiment, referring to fig. 1 and 3, the partition plate 200 is disposed inside the box body 100, the partition plate 200 is spaced apart from the bottom plate of the box body 100 to form a water storage cavity 130, the opening position of the first drain hole 120 is located between the partition plate 200 and the bottom plate of the box body 100, and the partition plate 200 is further provided with a second drain hole 210.

As shown in fig. 1, a certain interval is provided between the lower surface of the partition plate 200 and the upper surface of the bottom plate of the tank 100, and the interval enables a water storage chamber 130 to be formed between the partition plate 200 and the bottom plate of the tank 100 for storing rainwater and the like, and reserving moisture necessary for vegetation growth.

When raining, rainwater permeates into the planting soil and further gradually permeates into the water storage cavity 130 through the second water drainage holes 210 formed in the partition plate 200 to store water, when excessive water is stored, in order to avoid the situation that the roots of vegetation are soaked or the roots are necrotic in the later period, the water level can rise when excessive water exists in the water storage cavity 130, and the water can be drained through the first water drainage holes 120 in the box body 100 after the water level rises.

According to the root puncture prevention device, the box body 100 enables the root system of the vegetation to be in the box body 100, and the root system cannot damage a building roof, so that the root puncture prevention effect is achieved; when the box body 100 is used, planting soil is filled above the partition plate 200 of the box body 100, vegetation is cultivated through the planting soil, and when raining, rainwater enters the water storage cavity 130 through the first drainage hole 120, so that the rainwater storage capacity is achieved, and water required by vegetation growth is provided; meanwhile, the redundant water is discharged through the second water discharge hole 210, so that the problems of root rot and the like caused by the fact that the root system of the vegetation is soaked in water due to excessive water are avoided. In addition, so set up still to make and prevent root piercing depth from having certain regulation rainwater ability.

In one embodiment, the box 100 is made of metal. For example, the material of the box 100 may be aluminum.

In one embodiment shown in fig. 6, the case 100 is produced by cutting an aluminum plate into the shape shown in fig. 6, forming the first drain holes 120 thereon, and bending the aluminum plate according to a predetermined bending requirement.

Box 100 is fixed on the building roof structure, and the box 100 of aluminium system can directly block the root system of vegetation and extend towards box 100 is outer to avoid the root system to extend towards the building roof structure.

In one embodiment, referring to fig. 1, an aquifer 140 is also disposed in the aquifer chamber 130, and the aquifer 140 is laid on the floor of the tank 100.

In the embodiment shown in fig. 1, an aquifer 140 is also provided within the aquifer chamber 130, the aquifer 140 lying flat on the floor of the tank 100.

Further, the aquifer 140 is a layer of ceramic grains uniformly laid on the floor of the tank 100. The ceramic particles are arranged in a tiled mode, and when water is stored, the water-retaining effect can be achieved.

It should be noted that: ceramsite, as its name implies, is a ceramic particle. Most of the appearance characteristics of the ceramsite are round or oval spheres, but some imitation macadam ceramsite are irregular macadam-shaped instead of round or oval spheres and have higher hardness.

Vegetation and planting layer 150 establish in the top of division board 200, and the below sets up water storage chamber 130, and on the one hand, vegetation and planting layer 150 compare the condition of traditional direct contact building roof structure, have avoided causing the puncture scheduling problem to building roof structure, and on the other hand, the below sets up water storage chamber 130 and has satisfied the vegetation and grown the demand to the water, also possesses the regulation simultaneously and holds rainwater ability.

In one embodiment, referring to fig. 2, 4 and 6, at least two first drain holes 120 are provided, and at least two first drain holes 120 are spaced along the outer circumference of the box 100.

As shown in fig. 6, for better drainage, a plurality of first drainage holes 120 are opened at the outer circumference of the case 100, and each side of the case 100 is opened with the first drainage hole 120.

Referring to fig. 4 and 6, the box 100 is a rectangular box 100, the left and right side plates of the box 100 are respectively provided with three first drain holes 120, the three first drain holes 120 are spaced apart from each other, and the front and rear side plates of the box 100 are respectively provided with four first drain holes 120, the four first drain holes 120 are spaced apart from each other.

In one embodiment, referring to fig. 3, at least two second water discharge holes 210 are provided, and at least two second water discharge holes 210 are spaced apart from each other on the partition plate 200.

In the embodiment shown in fig. 3, in a top view, the inner dimensions of the partition plate 200 are substantially equal to those of the box 100, and the inner wall of the side plate of the box 100 is provided with a mounting structure for mounting the partition plate 200, so that the partition plate 200 can be fixed in the box 100 and form a predetermined interval with the bottom plate of the box 100, or the partition plate 200 can be directly placed on the ceramsite of the water storage layer 140, which is not described again.

In the embodiment shown in fig. 3, the second drainage holes 210 are formed at intervals, so that water at different positions of the planting layer 150 above the partition plate 200 can smoothly permeate into the water storage cavity 130.

Specifically, in the embodiment shown in fig. 3, the second water discharge holes 210 are provided with sixteen rows and four columns.

In one embodiment, referring to fig. 1, a planting layer 150 is further disposed inside the box body 100, and the planting layer 150 is laid on the upper portion of the partition plate 200.

The planting layer 150 may be planting soil for planting or planting vegetation.

It should be noted that, this prevent root piercing depth is in the time of selling, can not accompany and plant layer 150 and sell, also can arrange and plant layer 150 and sell, make the buyer purchase the back can directly carry out the cultivation or the planting of vegetation according to actual conditions, of course, the seller also can directly plant or cultivate the good vegetation back and sell according to buyer's requirement, no longer gives unnecessary details.

In one embodiment, referring to fig. 5, a reserved abutting portion 160 is further disposed on a side plate of the box body 100, and a height of the reserved abutting portion 160 is higher than a top height of the planting layer 150.

Reserve butt joint portion 160 and be the connection butt joint needs of reserving the later stage and carrying out the drainage tube to when the guarantee rainwater is too big, the water of planting the layer 150 top can further discharge through the drainage tube, avoids causing the rainwash to cause the soil loss of planting the layer 150.

Because reserve butt joint portion 160 is the drainage tube that is used for docking the later stage probably need to connect, consequently, this position is in the water body needs of discharging certain height above planting layer 150, should make the setting height that reserves butt joint portion 160 be higher than the top height of planting layer 150 to make the water body above planting layer 150 discharge through the drainage tube of reserving butt joint portion 160 later stage access, also avoid reserving butt joint portion 160 to set up the condition appearance that leads to soil to block up the export of reserving butt joint portion 160 when too low simultaneously.

Further, in one embodiment, the reserved docking portion 160 may be a reserved docking hole to enable docking of the drainage tube and enabling the water to enter the drainage tube through the docking hole and flow out.

In another embodiment, the reserved joint part 160 is not an already opened hole structure, but is a groove or a gap with a certain depth, which is pre-opened by a hole washing machine, such as a circular reserved joint pipe seam with a width of 1mm and a depth of 1 mm. When the drainage tube of a green building needs to be connected, the wedge is used for slightly prying the circular plate of the taking hole along the reserved butt joint tube seam, then the drainage tube is connected, and sealant is applied to the seam between the edge of the hole of the box body 100 and the drainage tube for fixing. Thus, when heavy rain or heavy rain occurs, the water which is not discharged from the first water discharge hole 120 can be discharged through the drainage tube, thereby solving the problem that the soil is likely to be washed by too much water poured into the box body 100, and meanwhile, the redundant water can be collected through the drainage tube for recycling.

In one embodiment, referring to fig. 5, at least two of the reserved connection portions 160 are provided, and at least two of the reserved connection portions 160 are spaced along the outer circumference of the box 100.

In the embodiment shown in fig. 5, two reserved connection parts 160 are provided, and the two reserved connection parts 160 are respectively provided at the connection positions of the box body 100, so that both sides can be connected with the drainage tube, thereby meeting the actual requirement of mutual communication among a plurality of root puncture prevention devices.

In one embodiment, referring to fig. 1 to 3 and 7, the root puncture preventing apparatus further includes a frame 300, the frame 300 is formed with a supporting space corresponding to the shape of the box body 100, and the box body 100 is disposed in the supporting space of the frame 300.

The frame 300 provides a mounting support for the box 100, and at the same time, the frame 300 also protects the box 100, so that the box 100 is maximally free from damage to the box due to external connection.

In one embodiment, referring to fig. 7, the frame 300 includes a bottom frame 310, a top frame 320 and a plurality of connecting rods 330, the bottom frame 310 is disposed corresponding to the top frame 320, and two ends of the connecting rods 330 are respectively connected to the top frame 320 and the bottom frame 310.

In the embodiment shown in fig. 7, the bottom frame 310 and the top frame 320 are rectangular frames, the connecting rod 330 is used to connect the bottom frame 310 and the top frame 320 to form a frame 300, and the box 100 is installed in the frame 300.

In one embodiment, referring to fig. 7, the frame 300 further includes at least two reinforcing rods 340, and the reinforcing rods 340 are spaced apart from each other and disposed in the bottom frame 310.

In the embodiment shown in fig. 7, four reinforcing rods 340 are provided inside the bottom frame 310, the four reinforcing rods 340 are fixed in the bottom frame 310 at intervals, the bottom frame 310 and the top frame 320 have the same size, and the reinforcing rods 340 serve to support the box 100.

In one embodiment, referring to fig. 4, fig. 5 and fig. 7, the box 100 is a rectangular box 100, and the frame 300 is a rectangular frame structure corresponding to the box 100.

The frame 300 structure not only has the function of protecting the box body 100, but also enables the whole body to be convenient to hoist and transport, and further lowers the structure gravity center, and has the anti-overturning capacity of the tall tree vegetation on the upper part of the structure. During actual arrangement, should prevent that root piercing depth can set up a plurality ofly side by side to form the vegetation district, when not needing, can directly hoist or carry away, the engineering volume is little, can also continue reuse after hoist or carry away moreover.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A root puncture prevention device, comprising:

2. The root puncture prevention device of claim 1, wherein an aquifer is further disposed inside the aquifer chamber, and the aquifer lays flat on a floor of the tank.

3. The root puncture preventing device according to claim 1, wherein the first drain holes are provided in at least two, at least two of the first drain holes being provided at intervals along an outer circumference of the case;

4. The root puncture prevention device according to claim 1, wherein a planting layer is further provided inside the box body, and the planting layer is laid on an upper portion of the partition plate.

5. The root puncture preventing device as claimed in claim 4, wherein a reserved butt joint part is further arranged on the side plate of the box body, and the height of the reserved butt joint part is higher than the top height of the planting layer.

6. The root puncture prevention device as claimed in claim 5, wherein there are at least two of the reserved interfaces, and at least two of the reserved interfaces are spaced apart along the outer circumference of the case.

7. The root puncture prevention device according to any one of claims 1 to 6, further comprising a frame formed with a support space corresponding to a shape of the case, the case being provided in the support space of the frame.

8. The root puncture preventing device according to claim 7, wherein the frame comprises a bottom frame, a top frame and a plurality of connecting rods, the bottom frame is disposed corresponding to the top frame, and two ends of the connecting rods are respectively connected to the top frame and the bottom frame.

9. The root puncture prevention device of claim 8, wherein the frame further comprises at least two reinforcing rods spaced apart from each other within the frame of the bottom frame.

10. The root puncture prevention device of claim 7, wherein the box is a rectangular box and the frame is a rectangular frame structure corresponding to the box.