Splicing type falling protector for empty pile backfilling section of cast-in-place pile

Abstract

The utility model discloses a splicing type falling protector for an empty pile backfill section of a cast-in-place pile, which comprises an upper fixing ring, a lower fixing ring, a lower fixing ring, a connecting rod, a connecting rod and a connecting rod, and the upper fixing ring comprises a fixing ring main circular ring and a fixing ring reinforcing rod connected to the fixing ring main circular ring; the bottom connecting ring is a circular metal ring, and the diameter of the circular metal ring is smaller than that of the main circular ring of the fixing ring; the side connecting rods are obliquely arranged, the upper ends of the side connecting rods are detachably connected with the fixing ring main circular ring of the upper fixing ring, and the lower ends of the side connecting rods are detachably connected with the bottom connecting ring; the upper fixing ring, the bottom connecting ring and the bottom connecting rod jointly form a conical anti-falling frame structure. The spliced falling protector for the empty pile backfill section of the cast-in-place pile is simple in structure, convenient to implement, low in implementation cost and capable of preventing personnel from falling into an empty pile hole during application, potential safety hazards are effectively eliminated, and construction safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a splicing type anti-falling device for the backfill section of the empty pile of a cast-in-place pile. Background Technique

[0002] As the most common construction technology in pile foundation construction, the cast-in-place pile has a very high usage frequency in the industry. The greatest advantage of this pile type is that it can be applied to various geological conditions. Whether it is a soft soil layer, a silt layer, a sand layer, or a rock layer, the cast-in-place pile technology can be used for construction. Compared with pile types such as prestressed high-strength concrete pipe piles and manually dug piles, which have relatively strict requirements for geological conditions, the cast-in-place pile technology is convenient and fast to construct, less affected by geological factors, and has good manual controllability. Therefore, it is widely used in various construction occasions.

[0003] During the construction process of cast-in-place piles, it mainly includes process steps such as pile core positioning, casing installation, hole opening acceptance, drilling rig positioning, pile hole drilling, rock judgment, hole depth measurement, steel cage fabrication, final hole acceptance, primary hole cleaning, steel cage lowering, secondary hole cleaning, conduit installation, and underwater concrete pouring. For deep foundation pit projects, if the surrounding maintenance support system adopts retaining piles + internal support system, the internal support beam structure of the foundation pit will occupy a large amount of the foundation pit space, and it is difficult to construct the main structure pile foundation in the foundation pit. Therefore, it is necessary to carry out cast-in-place pile construction on the ground before the foundation pit excavation. Among them, since the pile top elevation is located at the bottom of the foundation pit, the distance from the pile top elevation to the ground is the empty pile part. The pile core soil in this part still needs to be drilled and transported out. After the underwater concrete of the cast-in-place pile is poured, this part of the empty pile needs to be backfilled with fine sand or native soil. As is well known, the compactness of the backfill material in this part is always incomparable with the original soil, that is, it may cause safety hazards to the operators on the ground due to insufficient compaction of the backfill material, and even accidents such as personnel falling into the backfill material with insufficient compactness. This is a major safety hazard in the ground construction of cast-in-place piles. In recent years, such safety accidents have occurred from time to time and are very difficult to avoid. According to this phenomenon, relevant safety protection measures must be set near the backfilled pile holes in the project.

[0004] Common protection measures are to set standardized protection measures around the pile holes, such as plastic horses or iron horses and other protection devices. However, this kind of protection has many disadvantages. For example: 1. Although the surrounding protection is simple and effective, there will always be operators bypassing the enclosure and entering the empty pile hole position, or new arrivals accidentally entering this area without knowing it; 2. The enclosure time is limited. After an empty pile hole is backfilled, in order not to affect the construction of surrounding engineering piles, the installed protection will be temporarily removed at a certain time period. This stage is the weak period of this empty pile hole position and is extremely likely to cause safety accidents.

[0005] In view of this, the purpose of the utility model is to provide a new technical solution to solve the existing technical defects. Content of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a spliced anti-falling device for the backfill section of the empty pile of cast-in-place piles, solves the potential safety hazards existing in the prior art, and improves construction safety.

[0007] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0008] A spliced anti-falling device for the backfill section of the empty pile of cast-in-place piles, comprising:

[0009] An upper fixing ring, the upper fixing ring includes a fixing ring main ring and fixing ring reinforcing rods connected to the fixing ring main ring;

[0010] A bottom connecting ring, the bottom connecting ring is a circular metal ring, and the diameter of the circular metal ring is smaller than the diameter of the fixing ring main ring;

[0011] Side connecting rods, there are multiple side connecting rods and they are inclined. The upper ends of the side connecting rods are detachably connected to the fixing ring main ring of the upper fixing ring, and the lower ends of the side connecting rods are detachably connected to the bottom connecting ring;

[0012] The upper fixing ring, the bottom connecting ring and the bottom connecting rods together form a conical anti-falling frame structure.

[0013] As a further improvement of the above technical solution, an upper insertion section of the connecting rod is provided along the lower edge of the fixing ring main ring of the upper fixing ring, a bottom insertion section of the connecting rod is provided along the upper edge of the bottom connecting ring, the side connecting rod includes a connecting rod main body, an upper connecting sleeve is arranged at the upper part of the connecting rod main body, and a bottom connecting sleeve is arranged at the bottom of the connecting rod main body. The upper insertion section of the connecting rod is inserted into the upper connecting sleeve, and the bottom insertion section of the connecting rod is inserted into the bottom connecting sleeve.

[0014] As a further improvement of the above technical solution, a first pin hole is opened on the upper insertion section of the connecting rod, a second pin hole matching the first pin hole is opened on the upper connecting sleeve, and a first pin is inserted into the first pin hole and the second pin hole so that the upper insertion section of the connecting rod is detachably connected to the upper connecting sleeve; a third pin hole is opened on the bottom insertion section of the connecting rod, a fourth pin hole matching the third pin hole is opened on the bottom connecting sleeve, and a second pin is inserted into the third pin hole and the fourth pin hole so that the bottom insertion section of the connecting rod is detachably connected to the bottom connecting sleeve.

[0015] As a further improvement of the above technical solution, a reinforcing rod connecting block extending inward is arranged on the inner side of the main ring of the upper fixing ring. Reinforcing rod connecting plates are arranged at both ends of the fixing ring reinforcing rod. An insertion gap is arranged at the middle position of the reinforcing rod connecting block. The reinforcing rod connecting plate is inserted into the insertion gap of the reinforcing rod connecting block and is detachably connected through a pin. The main ring of the fixing ring and the fixing ring reinforcing rod are detachably connected through a pin.

[0016] As a further improvement of the above technical solution, a fifth pin hole penetrating left and right is formed in the reinforcing rod connecting block, and a sixth pin hole matching the fifth pin hole is formed in the reinforcing rod connecting plate. After the reinforcing rod connecting plate is inserted into the insertion gap of the reinforcing rod connecting block, the fixing ring reinforcing rod and the main ring of the fixing ring are detachably connected by inserting a third pin into the fifth pin hole and the sixth pin hole.

[0017] As a further improvement of the above technical solution, there are two fixing ring reinforcing rods, and the two fixing ring reinforcing rods are arranged in a cross shape.

[0018] As a further improvement of the above technical solution, the main ring of the fixing ring includes multiple main ring splicing rods, and the multiple main ring splicing rods are connected end to end to form the main ring of the fixing ring.

[0019] As a further improvement of the above technical solution, the main ring splicing rod includes an arc-shaped rod body. A plugging sleeve is arranged at one end of the arc-shaped rod body, and a plugging part is arranged at the other end of the arc-shaped rod body. Among two adjacent main ring splicing rods, the plugging part of one main ring splicing rod is inserted into the plugging sleeve of the other main ring splicing rod, so that the two main ring splicing rods are detachably connected. The multiple main ring splicing rods are connected end to end through the plugging sleeve and the plugging part and jointly form a circular main ring of the fixing ring.

[0020] As a further improvement of the above technical solution, a seventh pin hole is formed in the plugging sleeve, and an eighth pin hole matching the seventh pin hole is formed in the plugging part. After the plugging part is inserted into the plugging sleeve, the adjacent two main ring splicing rods are detachably connected by inserting a fourth pin into the seventh pin hole and the eighth pin hole.

[0021] As a further improvement of the above technical solution, the diameter of the main ring of the fixing ring is larger than the aperture of the cast-in-place pile and not less than 1500 mm, and the diameter of the bottom connecting ring is less than 250 mm.

[0022] The beneficial effects of the present utility model are as follows: The present utility model provides a splicing type anti-falling device for the backfill section of the bored pile empty pile. This splicing type anti-falling device for the backfill section of the bored pile empty pile is jointly composed of an upper fixing ring, a bottom connecting ring and a side connecting rod to form a detachable conical anti-falling device, which can effectively prevent people from falling into the empty pile hole, effectively eliminate the safety hazards of the bored pile empty pile hole, and this splicing type anti-falling device has the advantages of being detachable and occupying less area, can save a large amount of construction space, reduce labor costs, and has a low implementation cost.

[0023] In summary, this splicing type anti-falling device for the backfill section of the bored pile empty pile solves the safety hazards existing in the prior art and improves construction safety. Brief Description of the Drawings

[0024] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0025] Figure 1 It is the assembly schematic diagram of the present utility model. Detailed Embodiments

[0026] The concept, specific structure and technical effects generated by the present utility model will be clearly and completely described below in conjunction with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts shall fall within the scope of protection of the present utility model. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components alone, but refer to the more optimal connection structure that can be formed by adding or reducing connection accessories according to the specific implementation situation. Each technical feature in the present utility model can be combined interactively without conflicting with each other.

[0027] Referring to Figure 1 , the present utility model provides:

[0028] A splicing type anti-falling device for the backfill section of the bored pile empty pile, comprising: an upper fixing ring 1, a bottom connecting ring 2 and a side connecting rod 3. The upper fixing ring 1, the bottom connecting ring 2 and the bottom connecting rod 3 jointly form a conical anti-falling frame structure.

[0029] Specifically, the upper fixing ring 1 includes a main fixing ring circle 11 and fixing ring reinforcing rods 12 connected to the main fixing ring circle 11; the bottom connecting ring 2 is a circular metal ring, and the diameter of the circular metal ring 2 is smaller than the diameter of the main fixing ring circle 11; there are multiple side connecting rods 3 which are inclined, the upper ends of the side connecting rods 3 are detachably connected to the main fixing ring circle 11 of the upper fixing ring 1, and the lower ends of the side connecting rods 3 are detachably connected to the bottom connecting ring 2.

[0030] During application, place this kind of spliced anti-falling device at the empty pile hole of the cast-in-place pile, which will neither occupy the construction space nor effectively prevent personnel from falling into the pile hole, with high safety, effectively eliminating potential safety hazards and improving construction safety.

[0031] On the basis of ensuring the structural strength, the upper fixing ring 1, the bottom connecting ring 2 and the side connecting rods 3 can be made of construction waste commonly used in construction sites such as square pipes and round pipes, with low implementation cost and reduced construction waste.

[0032] In some embodiments, an upper insertion section of the connecting rod is provided along the lower edge of the main fixing ring circle 11 of the upper fixing ring 1, a bottom insertion section of the connecting rod is provided along the upper edge of the bottom connecting ring 2, the side connecting rod 3 includes a connecting rod main body, an upper connecting sleeve is provided at the upper part of the connecting rod main body, and a bottom connecting sleeve is provided at the bottom of the connecting rod main body. The upper insertion section of the connecting rod is inserted into the upper connecting sleeve, and the bottom insertion section of the connecting rod is inserted into the bottom connecting sleeve. Specifically, a first pin hole is opened on the upper insertion section of the connecting rod, a second pin hole matching the first pin hole is opened on the upper connecting sleeve, and a first pin is inserted into the first pin hole and the second pin hole to make the upper insertion section of the connecting rod detachably connected to the upper connecting sleeve; a third pin hole is opened on the bottom insertion section of the connecting rod, a fourth pin hole matching the third pin hole is opened on the bottom connecting sleeve, and a second pin is inserted into the third pin hole and the fourth pin hole to make the bottom insertion section of the connecting rod detachably connected to the bottom connecting sleeve. Through the first pin and the second pin, the detachable connection between the side connecting rod 3 and the upper fixing ring 1 and the bottom connecting ring 2 can be realized, which is convenient for assembly, facilitates the handling and assembly of the anti-falling device, has high application flexibility, and does not occupy too much space, saving construction space.

[0033] In some embodiments, an inwardly extending reinforcing rod connecting block is provided inside the main circular ring 11 of the upper fixing ring 1. Reinforcing rod connecting plates are provided at both ends of the fixing ring reinforcing rod 12. A plugging gap is provided at the middle position of the reinforcing rod connecting block. The reinforcing rod connecting plate is inserted into the plugging gap of the reinforcing rod connecting block and is detachably connected through a plug pin. The main circular ring 11 of the fixing ring and the fixing ring reinforcing rod 12 are detachably connected through a plug pin. A fifth plug pin hole penetrating left and right is provided on the reinforcing rod connecting block, and a sixth plug pin hole matching the fifth plug pin hole is provided on the reinforcing rod connecting plate. After the reinforcing rod connecting plate is inserted into the plugging gap of the reinforcing rod connecting block, the fixing ring reinforcing rod 12 and the main circular ring 11 of the fixing ring are detachably connected by inserting a third plug pin into the fifth plug pin hole and the sixth plug pin hole. The detachable connection of the main circular ring 11 of the fixing ring and the fixing ring reinforcing rod 12 can be realized through the third plug pin, and the operation is convenient and efficient.

[0034] In some embodiments, there are two fixing ring reinforcing rods 12, and the two fixing ring reinforcing rods 12 are arranged in a cross shape. In other embodiments, other numbers of fixing ring reinforcing rods 12 can also be set according to needs, such as three, four, five, etc.

[0035] In some embodiments, the main circular ring 11 of the fixing ring includes multiple main circular ring splicing rods. The multiple main circular ring splicing rods are connected end to end to form the main circular ring 11 of the fixing ring. Each main circular ring splicing rod includes an arc-shaped rod body. A plugging sleeve is provided at one end of the arc-shaped rod body, and a plugging portion is provided at the other end of the arc-shaped rod body. Among two adjacent main circular ring splicing rods, the plugging portion of one main circular ring splicing rod is inserted into the plugging sleeve of the other main circular ring splicing rod, so that the two main circular ring splicing rods are detachably connected. The multiple main circular ring splicing rods are connected end to end through the plugging sleeve and the plugging portion and jointly form a circular main circular ring 11 of the fixing ring. A seventh plug pin hole is provided on the plugging sleeve, and an eighth plug pin hole matching the seventh plug pin hole is provided on the plugging portion. After the plugging portion is inserted into the plugging sleeve, the adjacent two main circular ring splicing rods are detachably connected by inserting a fourth plug pin into the seventh plug pin hole and the eighth plug pin hole.

[0036] The multiple main circular ring splicing rods can be spliced into the main circular ring 11 of the fixing ring through the fourth plug pin, with convenient operation and small occupied space.

[0037] In addition, the diameter of the main circular ring 11 of the fixing ring is greater than the aperture of the cast-in-place pile and not less than 1500 mm, and the diameter of the bottom connecting ring 2 is less than 250 mm.

[0038] The above is a specific description of the preferred embodiment of the present utility model. However, the present utility model is not limited to the described embodiment. Those skilled in the art can make various equivalent deformations or substitutions without departing from the spirit of the present utility model, and these equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A spliced ​​fall arrester for the backfill section of a bored pile, characterized in that: include: An upper fixing ring (1), the upper fixing ring (1) comprising a fixing ring main circular ring (11) and a fixing ring reinforcing rod (12) connected to the fixing ring main circular ring (11); A bottom connecting ring (2), wherein the bottom connecting ring (2) is a circular metal ring, and the diameter of the circular metal ring (2) is smaller than the diameter of the fixing ring main ring (11); A side connecting rod (3), the side connecting rod (3) having a plurality of connecting rods and being arranged obliquely, the upper end of the side connecting rod (3) being detachably connected to the main circular ring (11) of the upper fixing ring (1), and the lower end of the side connecting rod (3) being detachably connected to the bottom connecting ring (2); The upper fixing ring (1), the bottom connecting ring (2) and the bottom connecting rod (3) together form a conical anti-falling frame structure.

2. A spliced ​​fall arrester for the backfill section of a bored pile according to claim 1, characterized in that: The upper fixing ring (1) is provided with an upper connecting rod insertion section at the lower edge of the fixing ring main ring (11), the upper edge of the bottom connecting ring (2) is provided with a bottom connecting rod insertion section, the side connecting rod (3) comprises a connecting rod body, an upper connecting sleeve is provided at the upper part of the connecting rod body, a bottom connecting sleeve is provided at the bottom of the connecting rod body, the upper connecting rod insertion section is inserted into the upper connecting sleeve, and the bottom connecting rod insertion section is inserted into the bottom connecting sleeve.

3. A spliced ​​fall arrester for the backfill section of a bored pile according to claim 2, characterized in that: The upper insertion section of the connecting rod is provided with a first pin hole, and the upper connecting sleeve is provided with a second pin hole that matches the first pin hole. The first pin hole and the second pin hole are inserted with a first pin, so that the upper insertion section of the connecting rod and the upper connecting sleeve are detachably connected; the bottom insertion section of the connecting rod is provided with a third pin hole, and the bottom connecting sleeve is provided with a fourth pin hole that matches the third pin hole. The third pin hole and the fourth pin hole are inserted with a second pin, so that the bottom insertion section of the connecting rod and the bottom connecting sleeve are detachably connected.

4. The spliced ​​fall arrester for the backfill section of a bored pile according to claim 1, characterized in that: A reinforcing rod connecting block extending inward is arranged on the inner side of the fixing ring main circular ring (11) of the upper fixing ring (1), reinforcing rod connecting plates are arranged at both ends of the fixing ring reinforcing rod (12), a plug-in gap is arranged in the middle of the reinforcing rod connecting block, the reinforcing rod connecting plate is inserted into the plug-in gap of the reinforcing rod connecting block and is detachably connected by means of a latch, and the fixing ring main circular ring (11) and the fixing ring reinforcing rod (12) are detachably connected by means of a latch.

5. The spliced ​​fall arrester for the backfill section of a bored pile according to claim 4, characterized in that: The reinforcing rod connecting block is provided with a fifth latch hole which runs through the left and right sides, and the reinforcing rod connecting plate is provided with a sixth latch hole which matches the fifth latch hole. After the reinforcing rod connecting plate is inserted into the plug-in gap of the reinforcing rod connecting block, a third latch pin is inserted into the fifth latch hole and the sixth latch hole to enable the fixing ring reinforcing rod (12) to be detachably connected to the fixing ring main ring (11).

6. The spliced ​​fall arrester for the backfill section of a bored pile according to claim 1, characterized in that: There are two fixing ring reinforcement rods (12), and the two fixing ring reinforcement rods (12) are arranged in a cross shape.

7. The spliced ​​fall arrester for the backfill section of a bored pile according to claim 1, characterized in that: The fixing ring main circular ring (11) comprises a plurality of main circular ring splicing rods, and the plurality of main circular ring splicing rods are connected end to end to form the fixing ring main circular ring (11).

8. The spliced ​​fall arrester for the backfill section of a bored pile according to claim 7, characterized in that: The main circular ring splicing rod comprises an arc-shaped rod body, one end of the arc-shaped rod body is provided with a plug-in sleeve, and the other end of the arc-shaped rod body is provided with a plug-in portion. Among two adjacent main circular ring splicing rods, the plug-in portion of one main circular ring splicing rod is inserted into the plug-in sleeve of the other main circular ring splicing rod so that the two main circular ring splicing rods can be detachably connected. A plurality of main circular ring splicing rods are connected end to end through the plug-in sleeve and the plug-in portion and together form a circular fixed ring main circular ring (11).

9. The spliced ​​fall arrester for the backfill section of a bored pile according to claim 8, characterized in that: The plug-in sleeve is provided with a seventh plug pin hole, and the plug-in part is provided with an eighth plug pin hole matching the seventh plug pin hole. After the plug-in part is inserted into the plug-in sleeve, the fourth plug pin is inserted into the seventh plug pin hole and the eighth plug pin hole so that two adjacent main circular splicing rods can be detachably connected.

10. A spliced ​​fall arrester for backfilling of a bored pile according to any one of claims 1 to 9, characterized in that: The diameter of the main circular ring (11) of the fixing ring is larger than the hole diameter of the cast-in-place pile and is not less than 1500 mm, and the diameter of the bottom connecting ring (2) is less than 250 mm.

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