Telescopic anti-collision pile protecting device for cast-in-situ bored pile

Abstract

The utility model relates to the technical field of cast-in-situ bored pile construction, and discloses a telescopic anti-collision pile protecting device for a cast-in-situ bored pile, which comprises a ground anchor, a telescopic rod is connected to the upper end of the ground anchor, a threaded hole is formed in the center of the upper end of the ground anchor, a connecting bolt matched with the threaded hole is fixedly connected to the center of the lower end of the telescopic rod, and the connecting bolt is fixedly connected with the ground anchor. A bearing table is arranged at the upper end of the telescopic rod, a level bubble is installed on the bearing table, a support is fixedly connected to the bearing table, a measuring nail is fixedly connected to the upper end of the support, and the outer side of the telescopic rod is sleeved with a protection assembly. According to the utility model, the measurement precision of the fender pile is improved, the fender pile is effectively prevented from being mistakenly collided by on-site constructors and machines, the working efficiency is improved, the construction period is shortened, the labor cost is saved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of bored cast-in-place pile construction, in particular to a telescopic anti-collision pile protection device for bored cast-in-place piles. Background Art

[0002] Bored piles are a common foundation treatment method used to reinforce soil and improve foundation bearing capacity. This method forms reinforced concrete columns by pouring concrete after drilling holes in the ground, which effectively enhances the stability and bearing capacity of the foundation. Guard piles refer to additional piles set around important pile positions such as intersections according to certain requirements to fix the pile positions. Guard piles play an important role in rechecking pile positions during the drilling and lowering of steel cages. Guard piles on traditional construction sites are made of short-branch steel bars (see Figure 1 ), although this method can basically meet the requirements of forming, it also has many disadvantages. The short branch steel bars obtained locally are of different lengths and not necessarily straight, which can easily cause positioning deviations. In addition, the traditional guard pile layout is inconspicuous and can be easily damaged by on-site construction machinery. Utility Model Content

[0003] In order to solve the problems of the above-mentioned prior art, the utility model provides a retractable anti-collision pile guard device for bored cast-in-place piles, which improves the measurement accuracy of the pile guards, effectively prevents accidental collisions by on-site construction personnel and machinery, improves work efficiency, shortens construction period, and also saves labor costs and reduces expenses.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a retractable anti-collision pile protection device for bored cast-in-place piles, comprising a ground anchor, a telescopic rod connected to the upper end of the ground anchor, a threaded hole is opened in the center of the upper end of the ground anchor, a connecting bolt matching the threaded hole is fixedly connected to the center of the lower end of the telescopic rod, a bearing platform is provided at the upper end of the telescopic rod, a level bubble is installed on the bearing platform, a bracket is fixedly connected to the bearing platform, a measuring nail is fixedly connected to the upper end of the bracket, and a protective component is sleeved on the outer side of the telescopic rod.

[0005] With the above structural design, the ground anchor plays a fixing role and provides support for the telescopic rod. The telescopic function of the telescopic rod is achieved through a combination of multiple sections. The telescopic rod can be pulled out manually and relies on its own friction to achieve the locking function. A level bubble is provided on the upper part of the telescopic rod to ensure the verticality of the guard pile. A measuring nail is provided on the upper part of the level bubble to ensure the accuracy of the construction line when checking the pile position.

[0006] Preferably, the protection assembly includes a protection tube sleeved on the outside of the telescopic rod, a connecting shaft installed on the upper end of the protection tube, and a protection cover rotatably connected to the protection tube through the connecting shaft.

[0007] With the above structural design, the protection system is inserted into the outside of the pile protection system during use to provide protection for the entire device. At the same time, the lower diameter of the protection tube is slightly larger than the diameter of the anchor, so the accuracy of the pile protection can be guaranteed even if it is slightly accidentally hit by on-site construction personnel and machinery.

[0008] Preferably, the protective tube is provided with reflective strips around its periphery.

[0009] The above structural design is adopted and reflective strips are set to serve as a striking warning to prevent on-site construction personnel and machinery from colliding with the guard piles.

[0010] Preferably, the measuring pin is a cylindrical structure, and an annular groove is formed on the measuring pin.

[0011] With the above structural design, when the device is connected to the construction line, the construction line can be directly snapped into the annular groove to prevent the construction line from shifting and causing positioning deviation.

[0012] Preferably, the length of the telescopic rod when fully extended is greater than the length of the protective tube.

[0013] With the above structural design, the telescopic rod can be retracted into the protective tube for protection after being retracted, and can extend out of the protective tube to connect the construction line after being extended.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The upper and lower parts of the guard pile of this device are vertical, and the measurement accuracy is high.

[0016] 2. This device can ensure the accuracy of the pile protection even if it is slightly accidentally hit by on-site construction personnel and machinery.

[0017] 3. This device is reusable and does not require additional concrete protection, thus avoiding material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the protective component of the utility model;

[0020] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;

[0021] Figure 4 For this utility model Figure 1 Schematic diagram of the enlarged structure at B. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: a retractable anti-collision pile protection device for bored piles, comprising a ground anchor 1, a telescopic rod 2 connected to the upper end of the ground anchor 1, a threaded hole 11 is provided at the center of the upper end of the ground anchor 1, a connecting bolt 21 matching the threaded hole 11 is fixedly connected to the center of the lower end of the telescopic rod 2, a bearing platform 6 is provided at the upper end of the telescopic rod 2, a level bubble 7 is installed on the bearing platform 6, a bracket 8 is fixedly connected to the bearing platform 6, a measuring nail 9 is fixedly connected to the upper end of the bracket 8, and a protective component is sleeved on the outer side of the telescopic rod 2. The ground anchor 1 plays a fixing role and provides support for the telescopic rod 2. The telescopic function of the telescopic rod 2 is realized by a multi-section combination, and the telescopic rod 2 can be manually pulled out and the locking function is realized by its own friction. A level bubble 7 is provided on the upper part of the telescopic rod 2 to ensure the verticality of the pile protection, and a measuring nail 9 is provided on the upper part of the level bubble 7 to ensure the accuracy of pulling the construction line when the pile position is verified.

[0024] The protection assembly includes a protection tube 3 sleeved on the outside of the telescopic rod 2, a connecting shaft 4 installed on the upper end of the protection tube 3, and a protection cover 5 rotatably connected to the protection tube 3 through the connecting shaft 4. When in use, the protection system is sleeved on the outside of the pile protection system to provide protection for the entire device. At the same time, the lower diameter of the protection tube 3 is slightly larger than the diameter of the anchor 1, so that the pile protection accuracy can be guaranteed even if it is slightly accidentally hit by on-site construction personnel and machinery.

[0025] The protective tube 3 is provided with a reflective strip 31 around it. The reflective strip 31 is provided to play a conspicuous warning role and prevent the on-site construction personnel and machinery from colliding with the guard pile.

[0026] The measuring pin 9 is a cylindrical structure, and an annular groove 10 is formed on the measuring pin 9. When the device is connected to the construction line, the construction line can be directly clamped in the annular groove 10 to prevent the construction line from shifting and causing positioning deviation.

[0027] The length of the telescopic rod 2 after being fully extended is greater than the length of the protective tube 3. The telescopic rod 2 can be retracted into the protective tube 3 for protection after being retracted, and can extend out of the protective tube 3 to connect the construction line after being extended.

[0028] Working principle: Before the construction of pile foundation, the surveyor uses the total station or GPS to place the pile position of the pile foundation. At the place outside the pile position that is larger than the diameter of the casing, four earth pits with a diameter of about 30 cm and a hole depth of about 30 cm are dug in four equal parts. The ground anchor 1 is driven into the earth pit and connected to the telescopic rod 2. The telescopic rod 2 can be manually pulled out and relies on its own friction to achieve the locking function. A level bubble 7 is provided on the upper part of the telescopic rod 2 to ensure the verticality of the pile guard. Using the staked pile position, the measuring nail 9 on the top of the pile guard is hung on the construction line to ensure the accuracy of the pile guard. After the pile guard is accurate, the protective tube 3 is placed on the outside of the pile guard and the soil is backfilled and compacted. The protective tube 3 is exposed about 20 cm to quickly identify the position of the pile guard and warn. When the pile guard is not in use, the telescopic rod 2 is retracted into the protective tube 3 and covered with a protective cover 5 for protection. When the pile guard is used again, the protective cover 5 is opened to pull the measuring nail 9 out of the protective tube 3 and connect it to the construction line.

[0029] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present utility model is described in detail with reference to the above embodiments, it is still possible for the technical solutions recorded in the above embodiments to be modified, or some of the technical features therein to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A retractable anti-collision pile protection device for bored piles, characterized in that: The invention comprises a ground anchor (1), wherein the upper end of the ground anchor (1) is connected to a telescopic rod (2), a threaded hole (11) is provided at the center of the upper end of the ground anchor (1), a connecting bolt (21) matching the threaded hole (11) is fixedly connected at the center of the lower end of the telescopic rod (2), a bearing platform (6) is arranged at the upper end of the telescopic rod (2), a level bubble (7) is installed on the bearing platform (6), a bracket (8) is fixedly connected to the bearing platform (6), a measuring nail (9) is fixedly connected to the upper end of the bracket (8), and a protective component is sleeved on the outer side of the telescopic rod (2).

2. A retractable anti-collision pile protection device for bored piles according to claim 1, characterized in that: The protection assembly comprises a protection tube (3) sleeved on the outside of the telescopic rod (2), a connecting shaft (4) mounted on the upper end of the protection tube (3), and a protection cover (5) rotatably connected to the protection tube (3) via the connecting shaft (4).

3. The retractable anti-collision pile protection device for bored piles according to claim 2 is characterized in that: The protective tube (3) is provided with reflective strips (31) around its periphery.

4. The retractable anti-collision pile protection device for bored piles according to claim 1, characterized in that: The measuring pin (9) is a cylindrical structure, and an annular groove (10) is provided on the measuring pin (9).

5. The retractable anti-collision pile protection device for bored piles according to claim 2, characterized in that: The length of the telescopic rod (2) after being fully extended is greater than the length of the protective tube (3).

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