Foldable passing cover plate for post-cast strip

Abstract

The utility model relates to the technical field of post-cast strip passing cover plates, in particular to a foldable post-cast strip passing cover plate. The triangular plate comprises two plate bodies, Z-shaped angle steel is fixed to one side of the top of each plate body, hollow steel pipes are fixed to the two ends of the other side of the top of each plate body, bolts are fixed to one sides of the two hollow steel pipes, and the plate bodies, the Z-shaped angle steel and the bolts form a triangular stress effect. According to the foldable passing cover plate for the post-cast strip, vertical pressure at the position of the cover plate is transmitted to the position of the Z-shaped angle steel and transmitted to concrete on the two sides of the post-cast strip to become horizontal pressure through special structural characteristics, so that the overall stability of the cover plate can be enhanced, and the service life of the cover plate is prolonged. When bearing a heavy object or external pressure, the anti-deformation structure is not easy to deform or damage; by means of the foldable design, the effect of protecting steel bars and concrete at the position of the post-cast strip can be achieved, and meanwhile the device has the advantages of being attractive, foldable, high in installation speed, capable of being turned over and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of post-cast strip passage cover plates, in particular to a foldable post-cast strip passage cover plate. Background Art

[0002] The post-cast strip access cover is a temporary facility in concrete pouring construction. It is used to cover the post-cast strip to prevent debris from falling into the post-cast strip, and also to facilitate the passage of people.

[0003] Post-cast joints are gaps reserved in building structures to address issues such as uneven settlement and shrinkage. They are filled with concrete during construction. Access slabs are the coverings installed above post-cast joints. These are typically made of wood, steel, or rebar, and are designed to withstand the weight of construction workers and other equipment.

[0004] For example, a Chinese utility model patent (CN214784223U) discloses a post-cast strip cover, which solves the following problems: currently, backfilling of the post-cast strip of the basement retaining wall cannot be carried out until the post-cast strip construction is completed and reaches the required strength. The post-sealing interval is relatively long, and there is a lot of construction waste and debris in the strip. Since the bottom plate steel bars are relatively thick, the cleaning work is very difficult. However, if the cleaning is not thorough, it is bound to cause the hidden danger of leakage. In addition, before the post-cast strip is constructed, groundwater will flow into the basement along the post-cast strip. In order to prevent rainwater from leaking into the basement from the post-cast strip position, the bottom of the post-cast strip is usually temporarily sealed to play a protective role. However, since the post-cast strip is exposed for a very long period, it is difficult to achieve a good protective effect by simply sealing the bottom.

[0005] The device includes a sealing plate that covers the top of the post-cast strip and a clamping mechanism that is arranged at the bottom of the sealing plate; the clamping mechanism includes two clamping arms, a pushing spring that is arranged on the sealing plate and pushes the clamping arm to make it abut against the first cast concrete layer, and a fastening screw that is arranged on the side wall of the sealing plate and horizontally passes through the clamping arm. The end of the fastening screw that extends out of the sealing plate is provided with a fastening nut, and a slider that is hung on the bottom of the sealing plate and slides along it is provided on the top of the clamping arm. The sealing plate is provided with a slide for the clamping arm to slide and a slide groove that cooperates with the slider. The utility model ensures that the top of the sealing plate is smooth and flat by arranging the clamping mechanism at the bottom of the sealing plate, which can avoid water accumulation on the top of the sealing plate and ensure the effect of waterproofing and preventing debris from entering the post-cast strip, thereby ensuring construction safety. At the same time, the post-cast strip is sealed by the sealing plate, effectively preventing the accumulation of debris and silt in the post-cast strip. Disassembly and assembly are convenient and reliable, ensuring the construction quality of the post-cast strip.

[0006] When using the above technology, we found that the following technical problems exist in the existing technology: the device does not have a stable anti-folding structure, which will cause the cover to deform or be damaged, which will bring safety risks to pedestrians or users. For this reason, we designed a foldable post-cast strip passage cover to provide another technical solution to the above technical problems. Utility Model Content

[0007] Based on this, it is necessary to provide a foldable post-casting strip passage cover to address the above technical issues and solve the problems raised in the above background technology.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A foldable post-cast strip passage cover comprises two plate bodies, a Z-shaped angle steel is fixed on one side of the top of the plate body, hollow steel pipes are fixed on both ends of the other side of the top of the plate body, bolts are fixed on one side of the two hollow steel pipes, and the two bolts are fixed to the Z-shaped angle steel. The plate body, Z-shaped angle steel and bolts form a triangular force effect.

[0010] As a preferred embodiment of the foldable post-cast strip passage cover provided by the utility model, four bolts are plugged into one side of the Z-shaped angle steel, and the four bolts are all threadedly connected to the plate body, and the plate body and the Z-shaped angle steel are fixed by the four bolts.

[0011] As a preferred embodiment of the foldable post-cast strip passage cover provided by the utility model, a steel bar connecting shaft is slidably connected to the inner side of the hollow steel pipe, and an anti-folding structure is provided on the inner side of the steel bar connecting shaft.

[0012] As a preferred embodiment of the foldable post-cast strip passage cover provided by the utility model, the anti-folding structure includes a connecting steel plate, a locking mechanism and a lifting mechanism, the inner side of the steel bar connecting shaft is slidingly connected with a connecting steel plate, both ends of one side of the connecting steel plate are provided with a locking mechanism, and both ends of the inner side of the connecting steel plate are provided with a lifting mechanism.

[0013] As a preferred embodiment of the foldable post-cast strip access cover provided by the utility model, the locking mechanism includes a fixed plate, a handle, a worm and a worm wheel, two fixed plates are fixed at both ends of one side of the connecting steel plate, and the two fixed plates are rotatably connected to the side close to each other with a worm, one side of one of the fixed plates is rotatably connected to a handle, the handle and the worm are fixed, and the top of the worm is meshed with a worm wheel.

[0014] As a preferred embodiment of the foldable post-cast strip passage cover provided by the utility model, the lifting mechanism includes a rotating shaft, a cam, a fixed disk and a plug rod, both ends of the inner side of the connecting steel plate are rotatably connected to the cam, the inner sides of the two cams are fixed with a rotating shaft, the two rotating shafts are respectively fixed to two worm gears, one end of the outer sides of the two rotating shafts is fixed with a fixed disk, the inner sides of the two fixed disks are slidably connected with a plug rod, the connection point of the plug rod and the fixed disk deviates from the center of the fixed disk, and the two plug rods are plug-connected to the connecting steel plate.

[0015] As a preferred embodiment of the foldable post-cast strip passage cover provided by the utility model, a plurality of circular grooves are evenly opened on one side of the connecting steel plate, and the connecting steel plates are connected by plugging the circular grooves and the plug rods.

[0016] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.

[0017] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0018] The utility model provides a foldable post-casting strip passage cover. The device adopts the design of anti-folding structure and locking mechanism, so that the cover is not easy to fold or deform when bearing weight and external force, thereby ensuring the safety of pedestrians.

[0019] The anti-folding structure can ensure that the cover maintains a good shape during long-term use, reducing damage caused by frequent folding and extending its service life;

[0020] Due to its structural characteristics, the device transfers the vertical pressure at the cover plate position to the position of the Z-angle steel and then to the concrete on both sides of the post-cast zone, turning it into horizontal pressure, thereby enhancing the overall stability of the cover plate and making it less likely to deform or be damaged when subjected to heavy objects or external pressure;

[0021] The device is designed to be foldable, which can protect the steel bars and concrete in the post-cast zone. It also has the advantages of being beautiful, foldable, fast to install, and recyclable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1This is a schematic diagram of the overall structure of a foldable post-casting belt passage cover of the utility model;

[0024] Figure 2 This is a bottom schematic diagram of a foldable post-casting belt passage cover of the utility model;

[0025] Figure 3 This is a schematic diagram of the connection between a foldable post-casting belt passage cover plate and a Z-shaped angle steel according to the present invention;

[0026] Figure 4 This is a schematic diagram of the connection between the Z-shaped angle steel and the bolts of a foldable post-casting belt passage cover of the utility model;

[0027] Figure 5 This is a schematic diagram of the connection between the steel plate and the cam of a foldable post-casting belt passage cover of the utility model;

[0028] Figure 6 This is a schematic diagram of the connection between a fixing plate and a handle of a foldable post-casting belt passage cover of the present invention;

[0029] Figure 7 This is a schematic diagram of the connection between a fixing plate and an inserting rod of a foldable post-casting belt passage cover of the utility model;

[0030] Figure 8 This is a schematic diagram of the connection between the worm and the worm wheel of a foldable post-casting belt passage cover of the utility model;

[0031] Figure 9 The utility model is a schematic diagram of the connection between the rotating shaft and the cam of the foldable post-casting belt passage cover.

[0032] In the figure: 1. Plate body; 2. Z-shaped angle steel; 3. Bolt; 4. Hollow steel pipe; 5. Steel bar connecting shaft; 6. Connecting steel plate; 7. Fixed plate; 8. Handle; 9. Worm; 10. Worm gear; 11. Rotating shaft; 12. Cam; 13. Fixed plate; 14. Insert rod. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] As described in the background art, the device does not have a stable anti-folding structure, which may cause the cover plate to be deformed or damaged, thereby posing a safety risk to pedestrians or users.

[0035] In order to solve this technical problem, the utility model provides a foldable post-cast strip passage cover.

[0036] Specifically, please refer to Figures 1-9 A foldable post-cast strip passage cover specifically includes: two plate bodies 1, a Z-shaped angle steel 2 is fixed on one side of the top of the plate body 1, hollow steel pipes 4 are fixed at both ends of the other side of the top of the plate body 1, and bolts 3 are fixed on one side of the two hollow steel pipes 4. The two bolts 3 are fixed to the Z-shaped angle steel 2, and the plate body 1, Z-shaped angle steel 2 and bolts 3 form a triangular force effect.

[0037] The utility model provides a foldable post-casting strip passage cover. The device adopts the design of anti-folding structure and locking mechanism, so that the cover is not easy to fold or deform when bearing weight and external force, thereby ensuring the safety of pedestrians.

[0038] The anti-folding structure can ensure that the cover maintains a good shape during long-term use, reducing damage caused by frequent folding and extending its service life;

[0039] Due to its structural characteristics, the device transfers the vertical pressure at the cover plate position to the position of the Z-angle steel 2 and then to the concrete on both sides of the post-cast zone, turning it into horizontal pressure, thereby enhancing the overall stability of the cover plate and making it less likely to deform or be damaged when subjected to heavy objects or external pressure;

[0040] The device is designed to be foldable, which can protect the steel bars and concrete in the post-cast zone. It also has the advantages of being beautiful, foldable, fast to install, and recyclable.

[0041] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0042] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0043] Reference Figures 1-9 A foldable post-cast strip passage cover includes two plate bodies 1, a Z-shaped angle steel 2 is fixed on one side of the top of the plate body 1, hollow steel pipes 4 are fixed at both ends of the other side of the top of the plate body 1, and bolts 3 are fixed on one side of the two hollow steel pipes 4. The two bolts 3 are fixed to the Z-shaped angle steel 2, and the plate body 1, Z-shaped angle steel 2 and bolts 3 form a triangular force effect.

[0044] One side of the Z-shaped angle steel 2 is plugged with four bolts 3, and the four bolts 3 are all threadedly connected to the plate body 1. The plate body 1 and the Z-shaped angle steel 2 are fixed by the four bolts 3, making the connection between the plate body 1 and the Z-shaped angle steel 2 more stable.

[0045] The inner side of the hollow steel pipe 4 is slidably connected to a steel bar connecting shaft 5, and an anti-folding structure is provided on the inner side of the steel bar connecting shaft 5. The anti-folding structure includes a connecting steel plate 6, a locking mechanism and a lifting mechanism. The inner side of the steel bar connecting shaft 5 is slidably connected to a connecting steel plate 6, and locking mechanisms are provided at both ends of one side of the connecting steel plate 6, and lifting mechanisms are provided at both ends of the inner side of the connecting steel plate 6, so that the anti-folding structure can prevent the two plate bodies 1 from rotating relative to each other.

[0046] The locking mechanism includes a fixed plate 7, a handle 8, a worm 9 and a worm wheel 10. Two fixed plates 7 are fixed at both ends of one side of the connecting steel plate 6. The two fixed plates 7 are rotatably connected to the side close to each other with a worm 9. One side of one of the fixed plates 7 is rotatably connected to the handle 8. The handle 8 and the worm 9 are fixed, and the top of the worm 9 is engaged with the worm wheel 10, so that the locking mechanism can limit the rotation of the cam 12.

[0047] The lifting mechanism includes a rotating shaft 11, a cam 12, a fixed disk 13 and a plug 14. The two ends of the inner side of the connecting steel plate 6 are rotatably connected to the cams 12, the inner sides of the two cams 12 are fixed with a rotating shaft 11, the two rotating shafts 11 are respectively fixed to the two worm gears 10, and one end of the outer side of the two rotating shafts 11 is fixed with a fixed disk 13. The inner sides of the two fixed disks 13 are slidably connected with the plug 14. The connection point between the plug 14 and the fixed disk 13 deviates from the center of the fixed disk 13. The two plugs 14 are plugged into the connecting steel plate 6, so that the lifting mechanism can support the plate body 1.

[0048] A plurality of circular grooves are evenly formed on one side of the connecting steel plate 6 , and the connecting steel plate 6 is plugged into the plug rods 14 through the circular grooves, so that the connection between the connecting steel plate 6 and the plug rods 14 is more stable.

[0049] The utility model provides a foldable post-casting strip passage cover. The device adopts the design of anti-folding structure and locking mechanism, so that the cover is not easy to fold or deform when bearing weight and external force, thereby ensuring the safety of pedestrians.

[0050] The anti-folding structure can ensure that the cover maintains a good shape during long-term use, reducing damage caused by frequent folding and extending its service life;

[0051] Due to its structural characteristics, the device transfers the vertical pressure at the cover plate position to the position of the Z-angle steel 2 and then to the concrete on both sides of the post-cast zone, turning it into horizontal pressure, thereby enhancing the overall stability of the cover plate and making it less likely to deform or be damaged when subjected to heavy objects or external pressure;

[0052] The device is designed to be foldable, which can protect the steel bars and concrete in the post-cast zone. It also has the advantages of being beautiful, foldable, fast to install, and recyclable.

[0053] The use process of the foldable post-casting strip passage cover provided by the present invention is as follows: the user puts the Z-shaped angle steel 2 into one side of the plate body 1, and then fastens the plate body 1 and the Z-shaped angle steel 2 with the bolt 3. The user aligns the hollow steel pipes 4 of the two plate bodies 1. After the multiple hollow steel pipes 4 are coaxially aligned, the user inserts the steel bar connecting shaft 5, so that the two plate bodies 1 can be connected. The user inserts the connecting steel plate 6 into the inner side of the steel bar connecting shaft 5, and then rotates the handle 8. The rotation of the handle 8 drives the worm 9 to rotate. Since the top of the worm 9 is engaged with the worm gear 10, the rotation of the worm 9 can drive the worm gear 10 to rotate, and then drive the cam 12 to rotate. The worm 9 and the worm gear 10 The meshing connection is self-locking, that is, the rotation of the worm 9 can drive the worm wheel 10 to rotate, while the worm wheel 10 cannot rotate by itself, thereby ensuring the irreversibility of the rotation. The rotation of the rotating shaft 11 can also drive the fixed disk 13 to rotate, so that the cam 12 can complete the support of the plate body 1. After turning to the appropriate angle, the user inserts the plug 14, so that the plug 14 can restore the plug-in connection with the connecting steel plate 6 while sliding in connection with the fixed disk 13, further ensuring the stability of the device. In summary, the utility model can share forces and bring many benefits, including improving structural stability, reducing stress concentration, improving bearing capacity, facilitating production and installation, and reducing costs.

[0054] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and improvements are possible without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed for the present invention is defined by the appended claims and their equivalents.

Claims

1. A foldable post-casting strip passage cover, comprising two plate bodies (1), characterized in that: A Z-shaped angle steel (2) is fixed to one side of the top of the plate body (1), and hollow steel pipes (4) are fixed to both ends of the other side of the top of the plate body (1). Bolts (3) are fixed to one side of the two hollow steel pipes (4), and the two bolts (3) are fixed to the Z-shaped angle steel (2). The plate body (1), the Z-shaped angle steel (2) and the bolts (3) form a triangular force effect.

2. A foldable post-casting strip passage cover according to claim 1, characterized in that: One side of the Z-shaped angle steel (2) is plug-connected with four bolts (3), and the four bolts (3) are all threadedly connected to the plate body (1). The plate body (1) and the Z-shaped angle steel (2) are fixed by the four bolts (3).

3. The foldable post-casting strip passage cover according to claim 1 is characterized in that: A steel bar connecting shaft (5) is slidably connected to the inner side of the hollow steel pipe (4), and an anti-folding structure is provided on the inner side of the steel bar connecting shaft (5).

4. A foldable post-casting strip passage cover according to claim 3, characterized in that: The anti-folding structure comprises a connecting steel plate (6), a locking mechanism and a lifting mechanism; the inner side of the steel bar connecting shaft (5) is slidably connected with the connecting steel plate (6); both ends of one side of the connecting steel plate (6) are provided with a locking mechanism; and both ends of the inner side of the connecting steel plate (6) are provided with a lifting mechanism.

5. A foldable post-casting strip passage cover according to claim 4, characterized in that: The locking mechanism comprises a fixing plate (7), a handle (8), a worm (9) and a worm wheel (10); two fixing plates (7) are fixed at both ends of one side of the connecting steel plate (6); the two fixing plates (7) are rotatably connected to the sides close to each other with the worm (9); one side of one of the fixing plates (7) is rotatably connected to the handle (8); the handle (8) and the worm (9) are fixed; and the top of the worm (9) is meshingly connected to the worm wheel (10).

6. The foldable post-casting strip passage cover according to claim 4 is characterized in that: The lifting mechanism comprises a rotating shaft (11), a cam (12), a fixed disk (13) and a plugging rod (14); both ends of the inner side of the connecting steel plate (6) are rotatably connected with the cams (12); the inner sides of the two cams (12) are fixed with rotating shafts (11); the two rotating shafts (11) are respectively fixed to two worm gears (10); one end of the outer sides of the two rotating shafts (11) are fixed with fixed disks (13); the inner sides of the two fixed disks (13) are slidably connected with plugging rods (14); the connection point between the plugging rod (14) and the fixing disk (13) deviates from the center of the fixing disk (13); the two plugging rods (14) are plug-connected to the connecting steel plate (6).

7. The foldable post-casting strip passage cover according to claim 6 is characterized in that: A plurality of circular grooves are evenly formed on one side of the connecting steel plate (6), and the connecting steel plate (6) is plugged and connected via the circular grooves and the plugging rods (14).

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