Hole pile protection plate

Abstract

The utility model discloses a hole pile protection plate which mainly comprises a plate body, a fixing plate, a rotating rod and an opening and closing mechanism. A ratchet wheel is arranged in the opening and closing mechanism, and a ratchet-shaped ratchet groove is formed in the ratchet wheel; the pedal opening and closing mechanism pushes the ratchet wheel to rotate, the ratchet wheel rotates to drive the rotating plate body to rotate and open, and the opening and closing mechanism limits the ratchet groove so that the plate body can return without being influenced by gravity in the opening process. The protection mechanism solves the problems that in hole pile construction protection, the protection mechanism is prone to deviation, and frequent opening and closing are not convenient. The safety of foundation construction operation can be improved, and the labor intensity of operators is reduced.

Description

Technical Field

[0001] This application relates to the field of engineering protection, specifically to a protective plate for bored piles. Background Technology

[0002] In modern building construction, before constructing the beam-slab-column frame structure, foundation construction must be carried out on a leveled site. This involves pile foundation construction using rotary drilling rigs or manual labor. After excavating the piles to the bearing stratum, manual support is applied to the inner wall of the piles, or a reinforcing cage is used in conjunction with concrete pouring. Due to the numerous pile locations on the site, and the potential depth of the piles reaching tens of meters, it is necessary to seal the openings of piles that have been excavated but not yet ready for the next stage to prevent workers from falling in. Currently, the main protective device used for pile holes is a steel mesh, which is directly covered to the opening. This method poses significant safety hazards. The steel mesh is flexible, and the direct covering method makes it prone to shifting, increasing the risk of overturning over time. Subsequent processes require repeated removal and re-covering of the mesh. Furthermore, since subsequent processes require repeated measurement of the pile center point, this can only be done by adding wooden boards to the steel mesh for marking, which is highly susceptible to shifting of the positioning point. This necessitates repeated measurements, wasting considerable worker time and reducing the overall efficiency of pile hole construction.

[0003] Therefore, this application designs a protective plate for bored piles that is not prone to displacement and is easy to open and close. Utility Model Content

[0004] The purpose of this utility model is to provide a protective plate for bored piles, which aims to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a protective plate for bored piles, comprising a plate body, a fixed plate, a rotating rod, and an opening and closing mechanism for the plate body driven to rotate by a foot pedal; the plate body is fixedly connected to the rotating rod, the rotating rod is rotatably connected to the side of the fixed plate, the opening and closing mechanism is rotatably connected to one end of the rotating rod, and the rear end of the opening and closing mechanism is bolted to the side of the fixed plate; a ratchet is provided inside the opening and closing mechanism, and a ratchet groove is formed inside the ratchet; the foot pedal opening and closing mechanism pushes the ratchet to rotate, the rotation of the ratchet drives the plate body to rotate and open, and the opening and closing mechanism limits the ratchet groove so that the plate body returns to its original position without being affected by gravity during the opening process. The upper part of the plate body is a flat structure, and the side of the plate body is provided with a curved support ring, the lower end of the support ring contacting the ground.

[0006] The fixed plate ensures that the plate is securely mounted on the top of the bored pile, preventing the pile from shifting. The opening and closing mechanism allows the plate to rotate and open via foot pedal, facilitating subsequent operations and quality inspections. Furthermore, the center point marker remains fixed during rotation, eliminating the need for repeated center point measurements. This effectively improves the efficiency and safety of bored pile construction and reduces repetitive physical labor for workers.

[0007] Furthermore, the fixing plate is provided with a through fixing hole, and a screw is installed in the fixing hole. The fixing plate is fixed to the ground through the fixing hole and the screw. A locking pin is slidably installed in the rotating rod. A strip hole is opened on the surface of the rotating rod, and a detachable pull rod is installed in the strip hole. The pull rod is connected to the locking pin.

[0008] The locking pins allow the rotating rod to limit the opening and closing mechanism, enabling the opening and closing mechanism to drive the rotating rod to rotate synchronously, thereby opening the plate. The displacement locking pins then disengage the opening and closing mechanism, allowing the rotating rod to rotate naturally and close under the influence of the plate's gravity, eliminating the need for complicated operations.

[0009] Furthermore, the opening and closing mechanism includes a rotating wheel, a pulling pawl, a locking pawl, a connecting rod, a support frame, and a pedal. One end of the rotating wheel is rotatably connected to one end of the rotating rod, and the other end of the rotating wheel is fixedly connected to the ratchet. The rear end of the support frame is bolted to the side of the fixed plate. The middle part of the connecting rod is rotatably connected to the side of the support frame. The pulling pawl is rotatably connected to one end of the connecting rod, and the locking pawl is rotatably connected to the end of the connecting rod away from the pulling pawl. One end of the pedal is inserted into the connecting rod. The opening and closing mechanism also includes a first protruding pin, a second protruding pin, a first spring, and a second spring. The pulling pawl contacts the ratchet teeth on the outer periphery of the ratchet, the locking pawl contacts the inner wall of the ratchet groove, the first protruding pin is fixedly connected to the side of the pulling pawl, the second protruding pin is fixedly connected to the side of the locking pawl, one end of the first spring is inserted into the first protruding pin, the other end of the first spring is inserted into the second protruding pin, one end of the second spring is fixedly connected to the lower part of the pedal, and the other end of the second spring is fixedly connected to the surface of the support frame.

[0010] Furthermore, a slot is provided inside the rotating wheel, and the slot fits the shape of the locking pin.

[0011] Compared with existing technologies, it has the following beneficial effects:

[0012] This utility model provides a protective plate for bored piles. A fixing plate securely mounts the plate to the top of the bored pile, preventing displacement. An opening and closing mechanism allows the plate to be rotated and opened by foot, facilitating subsequent work or quality inspections. Furthermore, the center point marker remains fixed during rotation, eliminating the need for repeated center point measurements. This effectively improves the efficiency and safety of bored pile construction, and reduces repetitive physical labor for workers.

[0013] The locking pins allow the rotating rod to limit the opening and closing mechanism, enabling the opening and closing mechanism to drive the rotating rod to rotate synchronously, thereby opening the plate. The displacement locking pins then disengage the opening and closing mechanism, allowing the rotating rod to rotate naturally and close under the influence of the plate's gravity, eliminating the need for complicated operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a borehole pile protective plate according to this utility model;

[0015] Figure 2 This is a schematic diagram showing the connection between the fixing plate and the rotating rod of a protective plate for bored piles according to this utility model.

[0016] Figure 3 This is a schematic diagram of the opening and closing mechanism of a borehole pile protective plate according to the present invention;

[0017] Figure 4 This is a schematic diagram of the locking pawl of a borehole pile protective plate according to the present invention;

[0018] Figure 5 This is a schematic diagram showing the connection between the rotating rod and the rotating wheel of a protective plate for bored piles according to this utility model.

[0019] In the diagram: 1-plate; 11-support ring; 2-fixed plate; 21-fixed hole; 3-rotating rod; 31-strip hole; 32-pull rod; 4-opening and closing mechanism; 41-rotating wheel; 42-pulling pawl; 43-locking pawl; 44-connecting rod; 45-support frame; 46-pedal; 47-first protruding pin; 48-second protruding pin; 49-first spring; 491-second spring; 5-ratchet; 6-ratchet groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1 to 5 As shown, this utility model provides the following technical solution: a protective plate for bored piles, including a plate body 1, a fixed plate 2, a rotating rod 3, and an opening and closing mechanism 4 for opening and closing the plate body 1 by means of a foot pedal; the plate body 1 is fixedly connected to the rotating rod 3, the rotating rod 3 is rotatably connected to the side of the fixed plate 2, the opening and closing mechanism 4 is rotatably connected to one end of the rotating rod 3, and the rear end of the opening and closing mechanism 4 is bolted to the side of the fixed plate 2; a ratchet 5 is provided in the opening and closing mechanism 4, and a ratchet groove 6 is provided in the ratchet 5; the foot pedal opening and closing mechanism 4 pushes the ratchet 5 to rotate, the rotation of the ratchet 5 drives the rotating plate body 1 to rotate and open, and the opening and closing mechanism 4 limits the ratchet groove 6 so that the plate body 1 returns to its original position without being affected by gravity during the opening process.

[0022] See Figure 1 The upper part of the plate 1 is a flat structure, and the side of the plate 1 is provided with a curved support ring 11, the lower end of which contacts the ground. The upper part of the plate 1 is provided with a high-friction pad, which facilitates the operation when positioning the center point.

[0023] See Figure 2 The fixing plate 2 is provided with a through fixing hole 21, and a screw is installed in the fixing hole 21. The fixing plate 2 is fixed to the ground by the fixing hole 21 and the screw. By passing the screw through the fixing hole 21, the screw can be driven into the ground using tools such as an electric drill. The plate 1 is placed above the pile hole by the limiting effect of the screw and the fixing plate 2, so as to prevent the plate 1 from shifting horizontally.

[0024] As another embodiment, such as Figure 2 As shown, a locking pin is slidably disposed inside the rotating rod 3. A strip-shaped hole 31 is opened on the surface of the rotating rod 3, and a detachable pull rod 32 is disposed inside the strip-shaped hole 31. The pull rod 32 is connected to the locking pin. By pulling the pull rod 32 towards the side close to the opening and closing mechanism 4, the locking pin is displaced along the rotating rod 3 and inserted into the opening and closing mechanism 4, so that the rotating rod 3 is engaged with the opening and closing mechanism 4, which facilitates the opening and closing mechanism 4 to drive the rotating rod 3 to rotate, thereby opening the plate 1.

[0025] As another embodiment, such as Figures 2 to 4 As shown, the opening and closing mechanism 4 includes a rotating wheel 41, a pulling pawl 42, a locking pawl 43, a connecting rod 44, a support frame 45, and a pedal 46. One end of the rotating wheel 41 is rotatably connected to one end of the rotating rod 3, and the other end of the rotating wheel 41 is fixedly connected to the ratchet 5. The rear end of the support frame 45 is bolted to the side of the fixed plate 2. The middle part of the connecting rod 44 is rotatably connected to the side of the support frame 45. The pulling pawl 42 is rotatably connected to one end of the connecting rod 44. The locking pawl 43 is rotatably connected to the end of the connecting rod 44 away from the pulling pawl 42. One end of the pedal 46 is inserted into the connecting rod 44.

[0026] After the protective plate is installed, when it is necessary to open the plate 1 for subsequent construction or inspection of the bored pile, the foot pedal 46 is used to move one end of the connecting plate downwards, thereby making the connecting plate form a lever. The other end of the connecting plate moves upwards, causing the pawl 42 to move downwards and pull the ratchet 5 to rotate. This, in turn, causes the rotating wheel 41 to rotate. The rotation of the rotating wheel 41 causes the rotating rod 3 to rotate, ultimately causing the plate 1 to rotate and open. The locking pawl 43 moves upwards during the rotation of the ratchet 5, limiting the ratchet groove 6 and preventing the plate 1 from rotating in the opposite direction due to gravity, which in turn causes the ratchet 5 to rotate. Repeatedly stepping on the foot pedal 46 can gradually rotate and open the plate 1.

[0027] See Figure 5 The opening and closing mechanism 4 also includes a first protruding pin 47, a second protruding pin 48, a first spring 49, and a second spring 491; the pulling pawl 42 contacts the ratchet teeth on the outer periphery of the ratchet 5, the locking pawl 43 contacts the inner wall of the ratchet groove 6, the first protruding pin 47 is fixedly connected to the side of the pulling pawl 42, the second protruding pin 48 is fixedly connected to the side of the locking pawl 43, one end of the first spring 49 is inserted into the first protruding pin 47, the other end of the multi-ended first spring 49 is inserted into the second protruding pin 48, one end of the second spring 491 is fixedly connected to the lower part of the pedal 46, and the other end of the second spring 491 is fixedly connected to the surface of the support frame 45. The first spring 49 always applies a pulling force to the first protruding pin 47 and the second protruding pin 48, so that the pulling pawl 42 and the locking pawl 43 are always in close contact with the ratchet 5 and the ratchet groove 6 due to the pulling force of the first spring 49; the connecting rod 44 is provided with a torsion spring for the rotatable connection with the fixed frame, so that the connecting rod 44 returns to its original position after being driven to rotate; the rotatable connections of the pulling pawl 42 and the locking pawl 43 with the connecting rod 44 are both provided with limiters, so that the locking pawl 43 will not be over-rotated by the drive of the ratchet groove 6, thereby achieving the locking effect.

[0028] The second spring 491 serves to support the pedal 46, preventing it from rotating downwards due to its own weight. It also provides assistance when the torsion spring drives the connecting rod 44 to reset. The second spring 491 can be tilted according to the rotational displacement trajectory of the pedal 46 to better match the displacement trajectory of the pedal 46.

[0029] It should be noted that the rotating wheel 41 has a slot, which fits the shape of the locking pin. When the plate 1 needs to be closed, the pull rod 32 is pulled to move the locking pin away from the rotating wheel 41 along the inner wall of the rotating rod 3, so that the locking pin disengages from the slot. The rotating rod 3 rotates under the action of the gravity of the plate 1, and the plate 1 closes naturally. When the plate 1 needs to be opened, the locking pin is inserted into the slot, so that the rotating wheel 41 can drive the rotating rod 3 to rotate synchronously.

[0030] Working principle: First, cover the hole pile with plate 1. Then, pass screws through fixing holes 21 and drive them into the ground using tools such as electric drills to complete the installation of the device. When it is necessary to open plate 1, step on pedal 46 to make pedal 46 drive the connecting plate to rotate around the center axis, which drives the pull pawl 42 to move downward and pull the ratchet 5 to rotate. Then, through the rotating wheel 41, it drives the rotating rod 3 to rotate, and finally makes plate 1 rotate open. The locking pawl 43 is limited by the ratchet groove 6 to prevent plate 1 from rotating in the opposite direction due to gravity. Repeatedly stepping on pedal 46 can gradually rotate and open plate 1. When it is necessary to close plate 1, pull the pull rod 32 to make the locking pin move away from the rotating wheel 41 along the inner wall of the rotating rod 3, so that the locking pin disengages from the groove. The rotating rod 3 rotates under the action of the gravity of plate 1, and plate 1 closes naturally.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective plate for bored piles, characterized in that, The device includes a plate (1), a fixed plate (2), a rotating rod (3), and an opening and closing mechanism (4) that is driven to rotate by foot pedal. The plate (1) is fixedly connected to the rotating rod (3), the rotating rod (3) is rotatably connected to the side of the fixed plate (2), the opening and closing mechanism (4) is rotatably connected to one end of the rotating rod (3), and the rear end of the opening and closing mechanism (4) is bolted to the side of the fixed plate (2). A ratchet (5) is provided inside the opening and closing mechanism (4), and a ratchet groove (6) is provided inside the ratchet (5). When the foot pedal is used to push the ratchet (5) to rotate, the rotation of the ratchet (5) drives the plate (1) to rotate and open. The opening and closing mechanism (4) limits the ratchet groove (6) so that the plate (1) can return to its original position without being affected by gravity during the opening process.

2. A piling shield as claimed in claim 1, wherein The upper part of the plate (1) is a flat structure, and the side of the plate (1) is provided with a support ring (11) with an arc. The lower end of the support ring (11) is in contact with the ground.

3. A piling shield as claimed in claim 2, wherein The fixing plate (2) is provided with a through fixing hole (21), and a screw is provided in the fixing hole (21). The fixing plate (2) is fixed to the ground by the screw through the fixing hole (21).

4. A piling shield as claimed in claim 3, wherein A locking pin is slidably provided inside the rotating rod (3), and a strip hole (31) is provided on the surface of the rotating rod (3). A detachable pull rod (32) is provided inside the strip hole (31), and the pull rod (32) is connected to the locking pin.

5. A piling shield as claimed in claim 4, wherein The opening and closing mechanism (4) includes a rotating wheel (41), a pulling pawl (42), a locking pawl (43), a connecting rod (44), a support frame (45), and a pedal (46); one end of the rotating wheel (41) is rotatably connected to one end of the rotating rod (3), and the other end of the rotating wheel (41) is fixedly connected to the ratchet (5); the rear end of the support frame (45) is bolted to the side of the fixed plate (2); the middle part of the connecting rod (44) is rotatably connected to the side of the support frame (45); the pulling pawl (42) is rotatably connected to one end of the connecting rod (44); the locking pawl (43) is rotatably connected to the end of the connecting rod (44) away from the pulling pawl (42); and one end of the pedal (46) is inserted into the connecting rod (44).

6. A piling shield as claimed in claim 5, wherein The opening and closing mechanism (4) further includes a first protruding pin (47), a second protruding pin (48), a first spring (49), and a second spring (491); the pulling pawl (42) contacts the ratchet teeth on the outer periphery of the ratchet (5), the locking pawl (43) contacts the inner wall of the ratchet groove (6), the first protruding pin (47) is fixedly connected to the side of the pulling pawl (42), the second protruding pin (48) is fixedly connected to the side of the locking pawl (43), one end of the first spring (49) is inserted into the first protruding pin (47), the other end of the multi-ended first spring (49) is inserted into the second protruding pin (48), one end of the second spring (491) is fixedly connected to the lower part of the pedal (46), and the other end of the second spring (491) is fixedly connected to the surface of the support frame (45).

7. The pier shield of claim 5, wherein, The rotating wheel (41) has a slot, which matches the shape of the locking pin.

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