Raft foundation guide wall suspended formwork positioning device

Abstract

The utility model discloses a raft foundation guide wall suspended formwork positioning device which comprises a plurality of reinforcing battens and a plurality of reinforcing wedges, and further comprises a positioning supporting rod, a plurality of connecting rods and a plurality of connecting rods. The mounting rod is connected to one end of the positioning supporting rod in an extending manner; the positioning rod is upwards and vertically connected to the joint of the mounting rod and the upper end of the positioning supporting rod; the outer mold supporting and limiting assembly is detachably mounted on the mounting rod; the vertical adjusting rod is vertically connected to the other end of the positioning supporting rod; the positioning piece extends upwards and is connected to the top of the vertical adjusting rod; and the inner suspended formwork supporting limiting piece is connected to the other end of the positioning supporting rod in an extending mode. Installation is convenient and efficient, the horizontal distance between the outer formwork and the hanging formwork is adjusted through the installation rods, the gaskets and the locking pieces, the requirement for the designed wall thickness is met, and it is guaranteed that a shear wall or an infilled wall does not leak water; the elevation of the hanging formwork is adjusted through the vertical adjusting rod, and the concrete construction quality is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a positioning device, concretely relates to raft foundation guide wall hoist mould positioning device belongs to the shear wall hoist mould construction technical field in building construction. BACKGROUND

[0002] Generally speaking, along with the improvement of the construction quality requirement of shear wall in building engineering, the shear wall formwork is gradually improved; at present, in building construction, when hoist mould construction, the installation is difficult, the positioning is not accurate, and the construction quality is difficult to guarantee.

[0003] The traditional hoist mould construction still has some technical defects and deficiencies as follows:

[0004] On the one hand, hoisting is unstable: the traditional hoist mould construction usually relies on the equipment such as crane to hoist the formwork, if the hoisting process is unstable, the formwork or other equipment may fall, causing serious safety accidents; when the workers hoist or adjust the formwork, they are often in the state of high-altitude operation, which increases the risk of falling, impact and the like.

[0005] On the other hand, in the hoist mould construction process, the formwork may be subjected to external force, partial deformation occurs, thereby affecting the concrete pouring effect and structural quality, which may lead to insufficient stability of the formwork, deformation or collapse of the formwork may occur;

[0006] Still, the traditional hoist mould construction involves multiple hoisting, installation and adjustment, the process is relatively complex, leading to a long construction period, affecting the engineering progress; and artificial dependence is large: a large amount of manual work is needed for hoisting, assembling and disassembling, which increases the labor cost, is easily affected by the skill level difference of the operating workers, leads to low efficiency, and the disassembly and transportation of the formwork need a certain time and labor, especially in high-rise buildings, the disassembly operation is more complex, in short, it is very inconvenient.

[0007] Therefore, developing a raft foundation guide wall hoist mould positioning device with strong practicality and high working reliability is the key to solving the above technical problems. SUMMARY

[0008] In view of the many defects and deficiencies in the above background technology, the utility model has carried out improvement and innovation, aims at providing a raft foundation guide wall hoist mould positioning device which is convenient to install, safe and stable, the device is convenient and efficient to install, the installation rod, gasket and locking piece adjust the horizontal distance between the outer formwork and the hoist mould, meets the design wall thickness requirement, ensures that the shear wall or the infill wall does not leak water; the hoist mould elevation is adjusted through the vertical adjusting rod, the concrete construction quality is guaranteed; the hoist mould is fixed, finally the design requirement is reached, and the formwork is convenient to disassemble later.

[0009] In order to solve the above problems and achieve the above invention purposes, the raft foundation guide wall formwork positioning device is realized by adopting the following design structure and adopting the following technical scheme.

[0010] A raft foundation guide wall formwork positioning device, comprising a plurality of reinforcing baulks (11) and a plurality of reinforcing wedges (12), further comprising:

[0011] A positioning support rod (1) is horizontally arranged transversely;

[0012] An installation rod (2) is connected to one end of the positioning support rod (1);

[0013] A positioning rod (3) is vertically connected to the upper end of the installation rod (2) and the positioning support rod (1);

[0014] An outer formwork support limiting assembly (4) is detachably installed on the installation rod (2);

[0015] A vertical adjustment rod (5) is vertically connected to the other end of the positioning support rod (1);

[0016] A positioning member (6) is connected to the top of the vertical adjustment rod (5);

[0017] An inner formwork support limiting member (7) is connected to the other end of the positioning support rod (1).

[0018] Preferably, the positioning support rod (1) is a smooth surface one-bar rod member;

[0019] The installation rod (2) is a screw rod or a lead screw with an external thread segment.

[0020] Preferably, the positioning rod (3) is a rod member, and the rod member is vertically connected to the positioning support rod (1).

[0021] Preferably, the outer formwork support limiting assembly (4) comprises:

[0022] A gasket (4a) has a mounting hole in the middle for the installation rod (2) to pass through;

[0023] A locking member (4b) is screwed onto the end of the gasket (4a) to limit and fix.

[0024] Preferably, the gasket (4a) is a square or elongated gasket;

[0025] The locking member (4b) is a common nut.

[0026] The gasket (4a) and the locking member (4b) are sequentially sleeved on the mounting rod (2) from inside to outside.

[0027] Preferably, one end of the vertical adjusting rod (5) is connected with the positioning support rod (1), and the other end of the vertical adjusting rod (5) is connected with the bottom plate or the ground (8).

[0028] Preferably, the positioning member (6) is located on the inner side of the outer mold (9) and is connected in close contact with the inner side wall of the outer mold (9).

[0029] Preferably, the inner hanging mold support limiting member (7) comprises:

[0030] The inner hanging mold supporting rod (7a) is coaxially connected with the positioning support rod (1);

[0031] The anti-disengagement limiting member (7b) is extendedly connected to the end of the inner hanging mold supporting rod (7a).

[0032] Preferably, the anti-disengagement limiting member (7b) is an internally hollow triangular member,

[0033] Preferably, on the outer surfaces of the positioning support rod (1), the mounting rod (2), the positioning rod (3), the outer mold support limiting assembly (4), the vertical adjusting rod (5), the positioning member (6), and the inner hanging mold support limiting member (7), there are sequentially arranged from inside to outside an injection molding layer, an anti-rust layer, a waterproof layer, and a warning layer, and the warning layer is coated with fluorescent powder.

[0034] The working principle is that before the raft foundation guide wall hanging mold positioning device with the above design structure is used, the operator only needs to manually or directly through the corresponding carrying equipment to carry the device which has been manufactured to the designated construction position for installation and use.

[0035] When installing, the construction personnel only need to install the support formwork (10) by using the end of the positioning support rod (1) provided with the inner formwork support limiting part (7), the formwork (10) is placed on the inner formwork placing rod (7a), and one side of the formwork (10) is installed in close contact with the limiting part (6), the other side of the formwork (10) is sequentially held and fixed by using the reinforcing batten (11) and the reinforcing wedge (12) from inside to outside, the installation and fixation of the formwork (10) are realized, then the construction personnel pass the other end of the positioning support rod (1) provided with the outer formwork support limiting assembly (4) through the installation hole previously formed on the outer formwork (9), and after adjusting to a suitable position, the construction personnel then horizontally fix the outside of the outer formwork (9) by using two reinforcing battens (11) respectively, and after the fixation is completed, the outer formwork (9) of the utility model is sequentially supported and reinforced by using the gasket (4a) and the locking part (4b) from inside to outside, according to actual construction operation needs, a plurality of structures of the utility model are installed in rows between the outer formwork (9) and the formwork (10), and after the installation is completed, the pouring work of the subsequent concrete can be carried out.

[0036] When building, the method of layered pouring is adopted, when pouring, the concrete is poured from the position of the gap below the formwork (10) first, the pouring is stopped after the bottom end of the formwork (10) is flush with the building, and the pouring is carried out again from the top of the hollow cavity formed between the outer formwork (9) and the formwork (10) after a period of maintenance, and it is necessary to pay attention to the vibration during pouring.

[0037] After the final pouring is completed, the building of the concrete is stopped, and the poured concrete is maintained.

[0038] Finally, with the passage of time, when all the construction is completed, the operator can remove the outer formwork (9) and the formwork (10) of the utility model when the poured concrete is solidified and maintained to the qualified condition and reaches the form removal condition.

[0039] When removing the outer formwork (9), the construction personnel only need to loosen the locking part (4b) by using a wrench tool, and take out the locking part (4b), then take out the gasket (4a) from the installation rod (2), at the same time, take out the two long reinforcing battens (11) clamped and fastened on the upper and lower ends of the installation rod (2), then sequentially take out the outer formwork (9) from the positioning support rod (1) and the installation rod (2) by exerting force outward, so that the removal of the outer formwork (9) is completed, after the outer formwork (9) is removed, the shear wall or the infilled wall or the wall of the square pool is formed, and the excess part exposed on the shear wall or the infilled wall is cut off, and the cut part is flush with the outer surface of the shear wall or the infilled wall.

[0040] Subsequently, the hanging formwork (10) is removed, when the hanging formwork (10) is removed, first, the construction personnel only need to take away the reinforcing wedge (12) placed on the inner hanging formwork supporting rod (7a) and playing a limiting clamping role, then, a long reinforcing batten (11) is taken away, finally, the hanging formwork (10) is taken out upwards, the removal work of the hanging formwork (10) is completed, after the hanging formwork (10) is removed, the wall of the shear wall or the infilled wall or the square pool is formed, the excess part exposed on the shear wall or the infilled wall is cut off, the cut-off part is flush with the outer surface of the shear wall or the infilled wall, and the part embedded in the shear wall or the infilled wall serves as the reinforcing structure of the utility model and plays a prestressed reinforcing role on the shear wall or the infilled wall.

[0041] The utility model is integrally formed with the building injection molding and pouring, and is not removed, and the excess part exposed can be cut off.

[0042] Compared with the prior art, the utility model has the beneficial effects that:

[0043] 1. The utility model is convenient and efficient to install, the installation rod, the gasket and the locking piece adjust the horizontal distance between the outer formwork and the hanging formwork, meet the design wall thickness requirement, ensure that the shear wall or the infilled wall is not water permeable, the hanging formwork elevation is adjusted through the vertical adjusting rod, the concrete construction quality is ensured, the hanging formwork is fixed, and finally, the design requirement is met, and the formwork is conveniently removed later;

[0044] 2. The utility model is safe and stable, the design is reasonable, the connection between the components is stable and reliable, and the safety during construction is effectively enhanced;

[0045] 3. The utility model protects the steel bars in the infilled wall or the shear wall from being damaged, adopts a detachable connection mode, avoids damage to the steel structure caused by traditional welding fixation, protects the integrity and safety of the steel bars, and simultaneously, since the hanging formwork positioning device is finally integrally poured and injection molded as a whole and serves as the formed infilled wall or shear wall, the structure is relatively stable and reliable, the bearing capacity and rigidity of the formed infilled wall or shear wall are increased, the service life is longer, and environmental protection is realized;

[0046] 4. The utility model improves construction efficiency, the hanging formwork supporting device can quickly and accurately support the formwork, improves the precision of formwork installation, reduces manual operation time, and improves construction speed;

[0047] 5. The utility model reduces labor intensity, through the hanging formwork supporting device, the physical labor of construction personnel can be reduced, the heavy degree of manual operation is reduced, and the working comfort and efficiency of workers are improved;

[0048] 6, The hanging formwork support device of the utility model can ensure that the formwork is stable, reduces the risk of formwork tilting or collapsing, thereby improving the safety of the construction site; especially in a small space or high-rise building, the hanging formwork support device can provide stable support, ensure the construction quality, and because the support stability provided by the hanging formwork support device, the precision and stability of the formwork can be ensured;

[0049] 7, The utility model can reduce formwork deformation, the hanging formwork support device can effectively disperse load, reduces the deformation condition of formwork because of bearing too heavy pressure, maintains the flatness and accuracy of formwork;

[0050] 8, The utility model discloses an outer part is coated with antirust paint and waterproof layer, therefore can prevent rusting simultaneously also prolongs the service life of whole device, realizes environmental protection also saves resources simultaneously, simultaneously, the device is coated with fluorescent material that can spontaneously emit light on the outside, can clearly mark the position of the line laying device in the night or dark room and underground construction environment, can effectively play the role of safety prompt, improves the salience, is easy for people to distinguish, increases the safety in construction and life. BRIEF DESCRIPTION OF DRAWINGS

[0051] The specific embodiments of the utility model will be explained in further detail below in combination with the drawings, wherein:

[0052] Figure 1 It is one of the use state schematic drawings of the utility model;

[0053] Figure 2 It is the second use state schematic drawing of the utility model;

[0054] Figure 3 It is the second use state schematic drawing of the utility model;

[0055] Figure 4 It is one of the overall combination structure schematic drawings of the utility model;

[0056] Figure 5 It is the second overall combination structure schematic drawing of the utility model;

[0057] Figure 6 It is the overall exploded structure schematic drawing of the utility model;

[0058] Wherein, the reference numerals in the drawings are as follows: 1 - positioning support rod;

[0059] 2 - mounting rod;

[0060] 3 - positioning rod;

[0061] 4 - outer formwork support limiting component, 4a - gasket, 4b - locking piece;

[0062] 5 - vertical adjusting rod;

[0063] 6-positioning member;

[0064] 7-inner hanging mold support limiting member, 7a-inner hanging mold placing rod, 7b-anti-falling limiting member;

[0065] 8-bottom plate or ground;

[0066] 9-outer mold;

[0067] 10-hanging mold;

[0068] 11-reinforcing batten;

[0069] 12-reinforcing wedge. DETAILED DESCRIPTION

[0070] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the technical scheme of the utility model will be described in further detail below in combination with the drawings and specific embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and embodiments.

[0071] As shown in Figures 1 to 6 A raft foundation guide wall hanging mold positioning device, comprising a plurality of reinforcing battens 11 and a plurality of reinforcing wedges 12, further comprising:

[0072] Positioning support rod 1, the positioning support rod 1 is horizontally arranged transversely;

[0073] Mounting rod 2, the mounting rod 2 is extended and connected to one end of the positioning support rod 1;

[0074] Positioning rod 3, the positioning rod 3 is vertically connected upwardly to the upper end connection of the mounting rod 2 and the positioning support rod 1;

[0075] Outer mold support limiting assembly 4, the outer mold support limiting assembly 4 is detachably mounted on the mounting rod 2;

[0076] Vertical adjusting rod 5, the vertical adjusting rod 5 is vertically connected to the other end of the positioning support rod 1;

[0077] Positioning member 6, the positioning member 6 is extended and connected upwardly to the top of the vertical adjusting rod 5;

[0078] Inner hanging mold support limiting member 7, the inner hanging mold support limiting member 7 is extended and connected to the other end of the positioning support rod 1.

[0079] In the utility model, the reinforcing batten 11 is a flat and long batten; the reinforcing wedge 12 is a square block.

[0080] Further, as shown inFigures 4 to 6 As shown, the positioning support rod 1 is a smooth, straight rod-shaped component;

[0081] The mounting rod 2 is a screw or lead screw with an external thread section.

[0082] Furthermore, such as Figures 4 to 6 As shown, the positioning rod 3 is an integral rod-shaped component, and the rod-shaped component is vertically connected to the positioning support rod 1.

[0083] Furthermore, such as Figure 6 As shown, the outer mold support and limiting component 4 includes:

[0084] Gasket 4a, with a mounting hole in the middle for the mounting rod 2 to pass through;

[0085] Locking component 4b is screwed onto the end of gasket 4a to limit and fix it.

[0086] Specifically, such as Figure 6 As shown, the gasket 4a is a square or rectangular gasket;

[0087] The locking component 4b is a common nut, wherein:

[0088] Gasket 4a and locking element 4b are sequentially fitted onto mounting rod 2 from the inside out.

[0089] Furthermore, such as Figures 1 to 3 As shown, one end of the vertical adjustment rod 5 is connected to the positioning support rod 1, and the other end of the vertical adjustment rod 5 is connected to the base plate or the ground 8.

[0090] Furthermore, such as Figures 1 to 3 As shown, the positioning element 6 is located inside the outer mold 9 and is in close contact with the inner wall of the outer mold 9.

[0091] Furthermore, such as Figure 4 As shown, the inner lifting mold support limiting member 7 includes:

[0092] The inner formwork erection rod 7a is coaxially connected to the positioning support rod 1.

[0093] Anti-detachment limiting component 7b extends and is connected to the end of the inner formwork erection rod 7a.

[0094] In this utility model, the inner lifting mold placement rod 7a and the positioning support rod 1 are coaxially connected to form an integral structure, and the anti-detachment limiting member 7b is connected to the inner lifting mold placement rod 7a to form an integral structure.

[0095] Specifically, such as Figure 4 As shown, the anti-detachment limiting component 7b is an internally hollow triangular component.

[0096] Further, the outer surfaces of the positioning support rod 1, the mounting rod 2, the positioning rod 3, the outer mold support limiting assembly 4, the vertical adjusting rod 5, the positioning piece 6 and the inner hanging mold support limiting piece 7 are sequentially provided with an injection molding layer, an anti-rust layer, a waterproof layer and a warning layer from inside to outside, and the warning layer is coated with fluorescent powder.

[0097] In the utility model, high molecular wear-resistant material is injection molded on the injection molding layer; the anti-rust layer comprises an epoxy zinc-rich primer, a chlorinated rubber finish and an epoxy cloud iron intermediate paint between the epoxy zinc-rich primer and the chlorinated rubber finish; the waterproof layer is polyurethane waterproof paint; and the warning layer is a single color or a plurality of colors mixed together, a reflective warning tape, a reflective film or a reflective paint.

[0098] Meanwhile, in the utility model, the connection is fixed connection or movable connection or detachable connection, wherein the fixed connection is welding connection or direct processing into an integral structure; the movable connection or detachable connection is hinged connection, internal and external thread connection, bayonet connection, plug-in sleeve connection or bolt assembly connection or screw connection.

[0099] To sum up, the more specific embodiment of the utility model is:

[0100] The raft foundation guide wall hanging mold positioning device with the above design structure is used before use, and the operator only needs to manually or directly through the corresponding carrying equipment to carry the device to the designated construction position for installation and use.

[0101] When installing, the construction personnel only need to install the one end of the positioning support rod 1 provided with the inner hanging mold support limiting piece 7 to support the hanging mold 10, the hanging mold 10 is placed on the inner hanging mold placing rod 7a, and one side of the hanging mold 10 is installed in close contact with the positioning piece 6, and the other side of the hanging mold 10 is sequentially held and fixed by the reinforcing wood 11 and the reinforcing wedge 12 from inside to outside, so that the installation and fixation of the hanging mold 10 are realized, then the construction personnel pass the other end of the positioning support rod 1 provided with the outer mold support limiting assembly 4 through the installation hole preformed on the outer mold 9, and adjust to the appropriate position, then the construction personnel horizontally fix the outer part of the outer mold 9 by two reinforcing woods 11 respectively, and then sequentially use the gasket 4a and the locking piece 4b from inside to outside to support and reinforce the outer mold 9 of the utility model, according to the actual construction operation needs, a plurality of structures of the utility model are installed in rows between the outer mold 9 and the hanging mold 10, and after the installation is completed, the pouring work of the subsequent concrete can be carried out.

[0102] When building, the method of layer pouring is adopted to pour, and when pouring, the concrete is poured from the position of the gap below the hanging form 10 first, and the pouring is stopped when the bottom of the hanging form 10 is flush with the ground, and then the hollow cavity formed between the outer form 9 and the hanging form 10 is poured again after a period of maintenance, and the pouring needs to be vibrated.

[0103] After the final pouring is completed, the building of the concrete is stopped, and the poured concrete is maintained.

[0104] Finally, with the passage of time, when all the construction is completed, the concrete to be poured is solidified and maintained to the qualified condition and reaches the condition of removing the formwork, and then the outer form 9 and the hanging form 10 of the utility model are removed by the operator.

[0105] When the outer form 9 is removed, the construction personnel only need to loosen the locking piece 4b by using a wrench tool, and then take out the locking piece 4b, and at the same time, take out the gasket 4a from the mounting rod 2, and meanwhile, take out the two long reinforcing wood boards 11 clamped and fastened on the upper and lower ends of the mounting rod 2, and then the outer form 9 is sequentially taken out from the positioning support rod 1 and the mounting rod 2 by force, so that the removal of the outer form 9 is completed, and after the outer form 9 is removed, the wall body of the shear wall or the filled wall or the square pool is formed, and the excess part exposed to the shear wall or the filled wall is cut off, and the cut-off part is flush with the outer surface of the shear wall or the filled wall.

[0106] Then, the hanging form 10 is removed, and when the hanging form 10 is removed, first, the construction personnel only need to take away the reinforcing wedge 12 placed on the inner hanging form supporting rod 7a to play a limiting clamping role, and then take away a long reinforcing wood board 11, and finally take out the hanging form 10 upwards to complete the removal of the hanging form 10, and after the hanging form 10 is removed, the wall body of the shear wall or the filled wall or the square pool is formed, and the excess part exposed to the shear wall or the filled wall is cut off, and the cut-off part is flush with the outer surface of the shear wall or the filled wall, and the part embedded in the shear wall or the filled wall serves as the reinforcing structure of the utility model and plays a prestressed reinforcing role on the shear wall or the filled wall.

[0107] The utility model is integrated with the building injection molding pouring, and is not removed, and the excess part exposed can be cut off.

[0108] Finally, it needs to be explained that the specific embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made to the utility model within the knowledge range possessed by the ordinary skilled in the art.

Claims

1. A raft foundation guide wall formwork positioning device comprising a plurality of reinforcing baulks (11) and a plurality of reinforcing wedges (12), characterised in that, Also includes: Positioning support rod (1), positioning support rod (1) is transversely horizontally arranged; Mounting rod (2), mounting rod (2) extends to connect to one end of positioning support rod (1); Positioning rod (3), positioning rod (3) is vertically connected to the upper end of mounting rod (2) and positioning support rod (1); Outer mold support limiting component (4), outer mold support limiting component (4) is detachably mounted on mounting rod (2); Vertical adjusting rod (5), vertical adjusting rod (5) is vertically connected to the other end of positioning support rod (1); Positioning member (6), positioning member (6) extends upwardly to connect to the top of vertical adjusting rod (5); Inner hanging mold support limiting member (7), inner hanging mold support limiting member (7) extends to connect to the other end of positioning support rod (1).

2. The raft foundation guide wall hanging mold positioning device according to claim 1, characterized in that: the positioning support rod (1) is a smooth surface one-word bar-shaped body component; the mounting rod (2) is a screw rod or a lead screw with an external threaded segment; 3. A raft foundation guide wall formwork positioning device according to claim 1, wherein, the positioning rod (3) is a whole bar-shaped body component, which is vertically connected with the positioning support rod (1).

4. A raft foundation guide wall formwork positioning device according to claim 1, wherein, the outer mold support limiting component (4) comprises: a gasket (4a) having a mounting hole in the middle for the mounting rod (2) to pass through; a locking member (4b) which is screwed onto the end of the gasket (4a) to limit and fix.

5. The raft foundation guide wall hanging mold positioning device according to claim 4, characterized in that: the gasket (4a) is a square or elongated gasket; the locking member (4b) is a common nut, wherein: the gasket (4a) and the locking member (4b) are sequentially sleeved on the mounting rod (2) from the inside to the outside.

6. A raft foundation guide wall formwork positioning device according to claim 1, wherein one end of the vertical adjusting rod (5) is connected with the positioning support rod (1), and the other end of the vertical adjusting rod (5) is connected with the bottom plate or the ground (8).

7. A raft foundation guide wall formwork positioning device according to claim 1, wherein the positioning member (6) is located on the inner side of the outer mold (9) and is in close contact with the inner side wall of the outer mold (9).

8. A raft foundation guide wall formwork positioning device according to claim 1, characterised in that, the inner hanging mold support limiting member (7) comprises: an inner hanging mold placing rod (7a) coaxially connected with the positioning support rod (1); a anti-dropping limiting member (7b) extending from the end of the inner hanging mold placing rod (7a).

9. A raft foundation guide wall formwork positioning device according to claim 8, wherein, the anti-dropping limiting member (7b) is a hollow triangular component, 10. A raft foundation guide wall formwork positioning device according to claim 1, characterised in that, on the outer surfaces of the positioning support rod (1), the mounting rod (2), the positioning rod (3), the outer mold support limiting component (4), the vertical adjusting rod (5), the positioning member (6), and the inner hanging mold support limiting member (7), there are sequentially arranged from the inside to the outside, an injection molding layer, an anti-rust layer, a waterproof layer, and a warning layer, and the warning layer is coated with fluorescent powder.

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