CN211591593U

CN211591593U - Novel floor table plate

Info

Publication number: CN211591593U
Application number: CN201922452220.9U
Authority: CN
Inventors: 李海维; 张毅鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-29
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a novel floor plate, which comprises a first metal plate and a second metal plate, wherein a plurality of strip-shaped first bulges are formed on the first metal plate by stamping, and the first bulges are distributed along the front-back direction; the second metal plate is arranged at the lower end of the first metal plate, the lower end face of the first protrusion is attached to the upper end face of the second metal plate, and the edge of the second metal plate is fixedly connected with the edge of the first metal plate. The utility model has the advantages of simple and reasonable design, adopt thinner first metal sheet and second metal sheet to make, first metal sheet upper end downward punching press forms a plurality of long banding first archs, and first arch is filled the clearance between first metal sheet and the second metal sheet, can enough improve the intensity of ground platen, improves the weight that bears, can alleviate holistic weight again.

Description

Novel floor table plate

Technical Field

The utility model relates to a novel ground platen.

Background

The floor deck is a support structure for carrying materials or products. The method is widely applied to the industries of machinery, electronics, food, medicine, clothing and the like. At present, more common are wooden board and plastic slab, and the drawback of wooden board is: the wood board is easy to absorb moisture and go moldy in rainy days, can be reused after fumigation, is easy to be damaged by insect pests, can obtain a final product after mixed soaking and disinfection, and has the advantages of complex production process, high production cost and weak market competitiveness; secondly, the wooden board is easy to be damaged, and the raised burrs are easy to be pricked into the packaging bag and mixed into the product, thereby affecting the product quality. The plastic plate has the disadvantages that: light weight and easy crushing. And the floor board produced by wood or plastic materials has insufficient strength and is easy to damage.

Disclosure of Invention

The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. Therefore, the utility model provides a novel ground platen, this ground platen adopt thinner first metal sheet and second metal sheet to make, and the downward punching press in first metal sheet upper end forms a plurality of long banding first archs, and first arch is filled the clearance between first metal sheet and the second metal sheet, can enough improve the intensity of ground platen, improves the weight that bears, can alleviate holistic weight again.

The novel floor plate comprises a first metal plate, wherein a plurality of strip-shaped first bulges are formed on the first metal plate in a stamping mode and distributed along the front-back direction; the second metal plate is arranged at the lower end of the first metal plate, the lower end face of the first protrusion is attached to the upper end face of the second metal plate, and the edge of the second metal plate is fixedly connected with the edge of the first metal plate.

According to the utility model discloses a novel floor plate has following technological effect at least: the upper end surface of the first metal plate is punched downwards to form a plurality of first bulges, each first bulge is distributed along the front-back direction, the lower end surface of each first bulge is attached to the upper end surface of the second metal plate, each first bulge has the function of a support column, the gap between the first metal plate and the second metal plate can be supported and filled, and the connection strength between the first metal plate and the second metal plate is improved, so that the bearing weight of the local bedplate is increased, the support columns do not need to be arranged between the first metal plate and the second metal plate, the processing procedures can be simplified, the production efficiency is improved, and the overall weight of the local bedplate can be reduced so as to be convenient for operators to carry and use; meanwhile, the floor plate is made of two thin metal plates, so that the floor plate is simple in structure and low in production cost, metal materials can be conveniently recycled, and the floor plate is environment-friendly and saves resources.

According to the utility model discloses a some embodiments, it is protruding that the stamping is formed with a plurality of long banding second on the second metal sheet, the second is protruding to distribute along controlling the direction, the bellied up end of second with first bellied lower terminal surface is laminated mutually.

According to some embodiments of the utility model, the lower extreme of second metal sheet is provided with a plurality of supporting legss, the supporting legs is hollow toper stabilizer blade, the toper stabilizer blade with the one end that the second metal sheet is connected is big footpath end, all be provided with on first metal sheet and the second metal sheet with the third through-hole of the cavity intercommunication of supporting legs.

According to some embodiments of the utility model, the lower extreme of first metal sheet corresponds the position of supporting legs is provided with first round platform, the upper end of second metal sheet corresponds the position of supporting legs is provided with the second round platform, the third through hole runs through first round platform with the second round platform, the lower terminal surface laminating of first round platform in the up end of second round platform.

According to some embodiments of the utility model, the supporting legs is provided with nine, nine the supporting legs is three horizontal three rows and evenly sets up the lower extreme of second metal sheet.

According to some embodiments of the present invention, the first metal plate has a thickness of 0.25mm to 0.80mm, and the second metal plate has a thickness of 0.25mm to 0.80 mm.

According to some embodiments of the utility model, the edge of first metal sheet turns up to roll over and is formed with first vertical limit, the edge of second metal sheet turns up to roll over and is formed with the vertical limit of second, the lower terminal surface laminating on first vertical limit in the up end on the vertical limit of second, first vertical limit with the laminating department on the vertical limit of second passes through welded fastening.

According to the utility model discloses a some embodiments, the edge of second metal sheet turns up and turns over a formation third vertical limit, the edge of first metal sheet turns up downwards and turns over a formation and surround the fourth vertical limit of third vertical limit, the length of fourth vertical limit is compared the length on third vertical limit is long, the lower extreme of fourth vertical limit turns up to turn over a formation level and colludes the limit, the up end that the limit was colluded to the level fits in the lower terminal surface of second metal sheet.

According to some embodiments of the utility model, the edge of second metal sheet turns up to roll over and is formed with seventh vertical limit, the inside roll-over in upper end on seventh vertical limit forms first circular arc limit, the terminal butt on first circular arc limit in the up end of second metal sheet, the edge of first metal sheet turns up to roll over downwards and is formed with and surrounds the eighth vertical limit on seventh vertical limit, the inside roll-over of lower extreme on eighth vertical limit forms second circular arc limit, the terminal butt on second circular arc limit in the lower terminal surface of first metal sheet, the middle part laminating on second circular arc limit in it fixes through the welding on the lateral wall on seventh vertical limit.

According to some embodiments of the present invention, the edge of the first metal plate is turned over downward to form a fifth vertical edge, and the lower end of the fifth vertical edge is turned over outward by 90 ° to form a first horizontal edge; the edge of the second metal plate is turned upwards to form a sixth vertical edge, and the lower end of the sixth vertical edge is turned outwards by 90 degrees to form a second horizontal edge; the lower end face of the first horizontal edge is attached to the upper end face of the second horizontal edge, second through holes are correspondingly formed in the first horizontal edge and the second horizontal edge, and bolts can penetrate through the second through holes to be matched with nuts to be fixed.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic top view of an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view taken at A-A in FIG. 1;

FIG. 3 is an enlarged schematic view at B in FIG. 2;

FIG. 4 is an enlarged schematic view at C of FIG. 2;

fig. 5 is a schematic perspective view of an embodiment of the present invention;

FIG. 6 is an enlarged schematic view at D of FIG. 5;

fig. 7 is a schematic view of an assembly structure of the second metal plate and the supporting leg in the embodiment of the present invention;

FIG. 8 is an enlarged schematic view at E in FIG. 7;

fig. 9 is a schematic structural view of a first metal plate in an embodiment of the present invention;

FIG. 10 is an enlarged schematic view at F of FIG. 9;

fig. 11 is a schematic sectional front view of a second embodiment of the present invention;

FIG. 12 is an enlarged schematic view at G of FIG. 11;

fig. 13 is a schematic sectional front view of a third embodiment of the present invention;

FIG. 14 is an enlarged schematic view at H of FIG. 13;

fig. 15 is a schematic sectional front view of a fourth embodiment of the present invention;

fig. 16 is an enlarged schematic view at I in fig. 15.

Reference numerals:

100-a first metal plate, 110-a first protrusion, 120-a first circular table, 130-a first vertical edge, 140-a second vertical edge, 150-a horizontal hook edge, 160-a third vertical edge, 170-a first horizontal edge, 180-an eighth vertical edge, and 181-a second circular arc edge;

200-a second metal plate, 210-a second protrusion, 220-a second circular table, 230-a second vertical edge, 240-a third vertical edge, 250-a sixth vertical edge, 260-a second horizontal edge, 270-a seventh vertical edge, and 271-a first circular arc edge;

300-supporting feet;

410-third via.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions, such as "upper", "lower", "front", "rear", "left", "right", etc., are referred to the positional or orientational relationships 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 so 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.

In the description of the present invention, if there are descriptions of "first", "second", "third", "fourth", "fifth", "sixth", etc., these are only for the purpose of distinguishing between technical features, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the indicated technical features.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1 to 10, a novel floor panel according to an embodiment of the present invention includes a first metal plate 100 and a second metal plate 200, wherein a plurality of strip-shaped first protrusions 110 are formed by punching the upper end surface of the first metal plate 100 downward, and the first protrusions 110 are distributed along the front-back direction; the second metal plate 200 is disposed at the lower end of the first metal plate 100, the lower end surface of the first protrusion 110 is attached to the upper end surface of the second metal plate 200, and the edge of the second metal plate 200 is fixedly connected to the edge of the first metal plate 100. Compared with the prior art, the embodiment of the utility model provides a through the up end at first metal sheet 100 down stamping be formed with a plurality of first archs 110, every first arch 110 all distributes along the fore-and-aft direction, the up end in second metal sheet 200 is laminated to the lower terminal surface of first arch 110, first arch 110 plays the effect of a "support column", can support the clearance of filling between first metal sheet 100 and second metal sheet 200, improve the joint strength between first metal sheet 100 and the second metal sheet 200, thereby increase the bearing weight of local platen, and need not to set up the support column between first metal sheet 100 and second metal sheet 200, both can simplify manufacturing procedure, improve production efficiency, also can alleviate the whole weight of floor platen, so that operating personnel carries the use; a plurality of strip-shaped first protrusions 110 are formed on the upper end surface of the first metal plate 100 in a downward stamping mode, so that the upper end surface of the first metal plate 100 is a non-smooth plane, the friction force between the first metal plate 100 and goods is increased, the goods are prevented from sliding down under the action of external force, and the use is safe; meanwhile, the floor plate is made of two thin metal plates, so that the floor plate is simple in structure and low in production cost, metal materials can be conveniently recycled, and the floor plate is environment-friendly and saves resources. Specifically, the first metal plate 100 and the second metal plate 200 both adopt galvanized plates or electrolytic plates, and the galvanized plates and the electrolytic plates have the characteristics of high strength, high ductility, corrosion resistance, nuclear radiation resistance, high-efficiency ultraviolet reflection, easiness in processing, light weight, recyclability, insect damage prevention, low carbon, environmental friendliness and the like, so that the floor plate manufactured by adopting the galvanized plates or the electrolytic plates completely meets the use requirement of the floor plate, waste generated after the floor plate manufactured by the galvanized plates or the electrolytic plates is disassembled is very little, the recovery rate of the floor plate manufactured by the disassembled galvanized plates or the electrolytic plates is more than eight, and the requirement of environmental protection efficiency is met. It can be understood that the strip-shaped first protrusion 110 is formed by stamping the second metal plate 200, and the upper end surface of the first protrusion 110 is attached to the lower end surface of the first metal plate 100 to achieve the same technical effect.

In some embodiments of the present invention, a plurality of second protrusions 210 are formed on the second metal plate 200 by stamping, the second protrusions 210 are distributed along the left-right direction, and the upper end surface of the second protrusions 210 is attached to the lower end surface of the first protrusions 110. First arch 110 and second arch 210 mutually perpendicular cross support can further enlarge the clearance between first metal sheet 100 and the second metal sheet 200 at the clearance between first metal sheet 100 and the second metal sheet 200 to can further reduce the thickness of first metal sheet 100 and second metal sheet 200 under the prerequisite that satisfies the intensity requirement, can reduce the cost of production on the one hand, on the other hand can alleviate the whole weight of the floor board of the embodiment of the utility model. Simultaneously, the first bulges 110 and the second bulges 210 are arranged into long strips, and the first bulges 110 and the second bulges 210 are arranged in a mutually perpendicular mode, so that the number of the first bulges 110 and the number of the second bulges 210 are reduced and the processing convenience is improved on the premise that the strength requirement can be met. It will be appreciated that the number of first protrusions 110 and second protrusions 210 is equal.

As shown in fig. 2, 3 and 6 to 8, in some embodiments of the present invention, the lower end of the second metal plate 200 is provided with a plurality of supporting legs 300, the supporting legs 300 are hollow tapered legs, one end of the tapered legs connected to the second metal plate 200 is a large diameter end, and the first metal plate 100 and the second metal plate 200 are both provided with third through holes 410 communicated with the cavities of the supporting legs 300. By the arrangement, in the transportation process, the supporting leg 300 of one platform plate can be placed in the inner cavity of the supporting leg 300 of another platform plate through the third through hole 410, so that a plurality of platform plates are stacked together, the occupied area of the platform plates in the boxing transportation process is reduced, and the transportation cost is reduced; meanwhile, when the floor plates are not used, a plurality of floor plates can be stacked together, so that the floor area is reduced, and the aim of saving the storage space is fulfilled.

As shown in fig. 2, 3, and 6 to 10, a first circular truncated cone 120 is disposed at a position corresponding to the support leg 300 at the lower end of the first metal plate 100, a second circular truncated cone 220 is disposed at a position corresponding to the support leg 300 at the upper end of the second metal plate 200, a third through hole 410 penetrates through the first circular truncated cone 120 and the second circular truncated cone 220, and the lower end surface of the first circular truncated cone 120 is attached to the upper end surface of the second circular truncated cone 220. In this way, the hollow first circular truncated cone 120 and the hollow second circular truncated cone 220 have the same function as the first protrusion 110 and the second protrusion 210, and play a role in filling and supporting the gap between the first metal plate 100 and the second metal plate 200, so that the strength of the floor panel where the supporting legs 300 are arranged is increased, and the overall strength of the floor panel is increased.

Further, nine support legs 300 are provided, and the lower ends of the second metal plates 200 are uniformly arranged in three transverse three rows of the nine support legs 300. By the arrangement, the floor plate can be better fixed, and the floor plate is prevented from moving or deforming during work. Of course, the number of support legs 300 may be set to other numbers such as four, six, twelve, etc., depending on the actual size of the floor deck. The specific number of support feet 300 is not limited herein. It is understood that the support legs 300 may be fixed to the lower end of the second metal plate 200 by welding.

In some embodiments of the present invention, the thickness of the first metal plate 100 is 0.25mm to 0.80mm, and the thickness of the second metal plate 200 is 0.25mm to 0.80 mm. The thickness of the first metal plate 100 and the thickness of the second metal plate 200 are both preferably 0.50mm, and 0.50mm is selected, so that on one hand, the first protrusion 110 can be conveniently formed on the first metal plate 100 by stamping with a stamping machine, on the other hand, the gap between the first metal plate 100 and the second metal plate 200 can be filled and supported by the first protrusion 110, and on the other hand, the thickness of 0.50mm is adopted for the first metal plate 100 and the second metal plate 200, so that on the basis of ensuring that the strength of the produced floor plate meets the use requirement, the use of raw materials is reduced, the production cost is reduced, and the weight of the whole floor plate can be reduced. It can be understood that the embodiment of the present invention describes the preferred thickness value, and does not limit the specific value of the thickness, so long as the thickness is selected within the range of 0.25 mm-0.80 mm, the same technical effect can be achieved

As shown in fig. 2, 3, 8 and 10, in some embodiments of the present invention, the edge of the first metal plate 100 is turned upward to form a first vertical edge 130, the edge of the second metal plate 200 is turned upward to form a second vertical edge 230, the lower end surface of the first vertical edge 130 is attached to the upper end surface of the second vertical edge 230, and the attachment of the first vertical edge 130 and the second vertical edge 230 is fixed by welding. Make the lower extreme of first vertical limit 130 fixed with the upper end of second vertical limit 230 through the welded mode for the edge of first metal sheet 100 is fixed with the edge of second metal sheet 200, thereby makes and can not produce the displacement between first metal sheet 100 and the second metal sheet 200, ensures that first arch 110 aligns the contact throughout with second arch 210, ensures the utility model discloses the intensity of ground platen satisfies operation requirement.

As shown in fig. 11 and 12, in the second embodiment of the present invention, the edge of the second metal plate 200 is turned upwards to form the third vertical edge 240, the edge of the first metal plate 100 is turned downwards to form the fourth vertical edge 140 surrounding the third vertical edge 240, the length of the fourth vertical edge 140 is longer than the length of the third vertical edge 240, the lower end of the fourth vertical edge 140 is turned inwards to form the horizontal hook edge 150, and the upper end surface of the horizontal hook edge 150 is attached to the lower end surface of the second metal plate 200. Set up like this, first vertical limit 130 and the level on the first metal sheet 100 collude limit 150 and wraps the edge of first metal sheet 100 to make second metal sheet 200 fixed connection in the cavity that the edge of first metal sheet 100 encloses, can not produce the displacement between first metal sheet 100 and the second metal sheet 200, ensure that first arch 110 aligns the contact throughout with second arch 210, ensure the utility model discloses the intensity of floor board satisfies the operation requirement.

As shown in fig. 13 and 14, in the third embodiment of the present invention, the edge of the second metal plate 200 is turned upward to form a seventh vertical edge 270, the upper end of the seventh vertical edge 270 is turned inward to form a first arc edge 271, the end of the first arc edge 271 is abutted to the upper end surface of the second metal plate 200, the edge of the first metal plate 100 is turned downward to form an eighth vertical edge 180 surrounding the seventh vertical edge 270, the lower end of the eighth vertical edge 180 is turned inward to form a second arc edge 181, the end of the second arc edge 181 is abutted to the lower end surface of the first metal plate 100, and the middle of the second arc edge 181 is attached to the outer side wall of the seventh vertical edge 270 and is fixed by welding. Through having second circular arc limit 181 and first circular arc limit 271 at the edge of first metal sheet 100 and second metal sheet 200 respectively the upset, the terminal butt in the lower terminal surface of first metal sheet 100 of second circular arc limit 181, the terminal butt in the up end of second metal sheet 200 of first circular arc limit 271 simultaneously can further improve the utility model discloses the intensity of ground platen. The middle part of the second arc edge 181 is attached and fixed to the outer side wall of the seventh vertical edge 270 in a spot welding manner, so that the first metal plate 100 and the second metal plate 200 are connected into a whole, and the first metal plate 100 is prevented from moving relative to the second metal plate 200.

As shown in fig. 15 and 16, in the fourth embodiment of the present invention, the edge of the first metal plate 100 is turned downward to form a fifth vertical edge 160, and the lower end of the fifth vertical edge 160 is turned outward by 90 ° to form a first horizontal edge 170; the edge of the second metal plate 200 is turned upwards to form a sixth vertical edge 250, and the lower end of the sixth vertical edge 250 is turned outwards by 90 degrees to form a second horizontal edge 260; the lower end face of the first horizontal edge 170 is attached to the upper end face of the second horizontal edge 260, and the first horizontal edge 170 and the second horizontal edge 260 are correspondingly provided with second through holes for bolts to pass through to be matched with nuts for fixing. Through the bolt and nut cooperation mode for the edge laminating of first metal sheet 100 and second metal sheet 200 is fixed, avoids first metal sheet 100 to produce the removal relative to second metal sheet 200, makes first arch 110 and the contact of second arch 210 parallel and level all the time. Through the mode that the bolt and nut cooperation is connected, after using a period, when first metal sheet 100 or second metal sheet 200 appear damaging and can't satisfy the operation requirement, can pull down bolt and nut to pull down the part that damages and change, need not to change whole ground platen, practice thrift the cost.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and variations; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel floor panel, comprising:

the first metal plate is punched to form a plurality of strip-shaped first bulges, and the first bulges are distributed along the front-back direction;

the second metal plate is arranged at the lower end of the first metal plate, the lower end face of the first protrusion is attached to the upper end face of the second metal plate, and the edge of the second metal plate is fixedly connected with the edge of the first metal plate.

2. The novel floor plate as claimed in claim 1, wherein a plurality of second elongated protrusions are formed by stamping on the second metal plate, the second protrusions are distributed along the left-right direction, and the upper end surfaces of the second protrusions are attached to the lower end surfaces of the first protrusions.

3. The novel floor plate as claimed in claim 1, wherein a plurality of supporting feet are provided at the lower end of the second metal plate, the supporting feet are hollow conical supporting feet, the end of the conical supporting feet connected with the second metal plate is a large-diameter end, and third through holes communicated with the cavities of the supporting feet are provided on the first metal plate and the second metal plate.

4. The novel floor plate as claimed in claim 3, wherein a first circular truncated cone is disposed at a position corresponding to the supporting leg at the lower end of the first metal plate, a second circular truncated cone is disposed at a position corresponding to the supporting leg at the upper end of the second metal plate, the third through hole penetrates through the first circular truncated cone and the second circular truncated cone, and the lower end surface of the first circular truncated cone is attached to the upper end surface of the second circular truncated cone.

5. The novel floor plate as claimed in claim 3, wherein nine of said support legs are provided, and said nine support legs are three horizontal three rows evenly provided at the lower end of said second metal plate.

6. The novel floor plate of claim 1, wherein said first metal plate has a thickness of 0.25mm to 0.80mm and said second metal plate has a thickness of 0.25mm to 0.80 mm.

7. The novel floor plate as claimed in any one of claims 1 to 6, wherein the edge of the first metal plate is folded upwards to form a first vertical edge, the edge of the second metal plate is folded upwards to form a second vertical edge, the lower end surface of the first vertical edge is attached to the upper end surface of the second vertical edge, and the attachment part of the first vertical edge and the second vertical edge is fixed by welding.

8. The novel floor plate as claimed in any one of claims 1 to 6, wherein the edge of the second metal plate is turned upwards to form a third vertical edge, the edge of the first metal plate is turned downwards to form a fourth vertical edge surrounding the third vertical edge, the length of the fourth vertical edge is longer than that of the third vertical edge, the lower end of the fourth vertical edge is turned inwards to form a horizontal hook edge, and the upper end surface of the horizontal hook edge is attached to the lower end surface of the second metal plate.

9. The novel floor plate as claimed in any one of claims 1 to 6, wherein the edge of the second metal plate is turned upwards to form a seventh vertical edge, the upper end of the seventh vertical edge is turned inwards to form a first arc edge, the end of the first arc edge abuts against the upper end face of the second metal plate, the edge of the first metal plate is turned downwards to form an eighth vertical edge surrounding the seventh vertical edge, the lower end of the eighth vertical edge is turned inwards to form a second arc edge, the end of the second arc edge abuts against the lower end face of the first metal plate, and the middle of the second arc edge abuts against the outer side wall of the seventh vertical edge and is fixed by welding.

10. The novel floor slab as claimed in any one of claims 1 to 6, wherein the edge of said first metal sheet is turned downward to form a fifth vertical edge, and the lower end of said fifth vertical edge is turned outward by 90 ° to form a first horizontal edge; the edge of the second metal plate is turned upwards to form a sixth vertical edge, and the lower end of the sixth vertical edge is turned outwards by 90 degrees to form a second horizontal edge; the lower end face of the first horizontal edge is attached to the upper end face of the second horizontal edge, second through holes are correspondingly formed in the first horizontal edge and the second horizontal edge, and bolts can penetrate through the second through holes to be matched with nuts to be fixed.