Quick-cutting pile head steel bar connector for cast-in-place pile

Abstract

The utility model discloses a quick-cutting pile head steel bar connector for a cast-in-place pile. The quick-cutting pile head steel bar connector comprises a steel bar sleeve and a cut-off pipe, the cut-off pipe comprises a bottom, a top and a pipe channel; the cut-off pipe enables the bottom of the cut-off pipe to sleeve the outer side of the steel bar sleeve through the pipe channel, and the cut-off pipe is fixedly connected with the steel bar sleeve; the upper cavity of the cut-off pipe forms a cavity part to be cut off. The cast-in-place pile quick-cutting pile head reinforcing steel bar connector has the advantages that construction efficiency is improved, a constructor can directly use a rope saw or a wheel saw to integrally cut off a pile head at a designed elevation by means of the cast-in-place pile quick-cutting pile head reinforcing steel bar connector, and a tedious manual chiseling process is not needed; the pile head cutting procedure is greatly simplified, the construction period is shortened, and therefore the construction efficiency is remarkably improved. And 2, the labor intensity is reduced: a constructor needs to hold a heavy tool for a long time to carry out high-intensity labor in a traditional pile head cutting method, but the quick-cutting pile head steel bar connector of the cast-in-place pile enables the constructor to easily cut off the pile head, so that the labor intensity is greatly reduced, and the construction safety is more favorably guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering piles, in particular to a quick-cut pile head steel bar connector for cast-in-place piles. Background Art

[0002] Pile foundations are a common and important structural form in building construction. As part of the pile foundation, the pile head often needs to be cut down to a specific design elevation. For example, construction workers begin construction according to design drawings and drive the pile into the ground to a predetermined depth. At this stage, the pile head is often left slightly higher to ensure stability and safety.

[0003] Since the piles need to be connected by steel bars and cannot be cut, construction workers need to use tools such as jackhammers to manually remove excess concrete from the pile heads. This process is called pile head cutting. However, this conventional method has several significant problems:

[0004] 1. Low construction efficiency: Manually chiseling pile heads with tools such as jackhammers is laborious, time-consuming, and labor-intensive. In large-scale construction projects, this inefficient method can seriously impact project progress.

[0005] 2. Construction safety issues: When manually chiseling away the pile head, flying concrete fragments may cause harm to construction workers. At the same time, long-term high-intensity labor with heavy tools also increases the risk of work-related injuries.

[0006] 3. Difficulty in quality control: Manual operation is difficult to ensure the cutting accuracy of each pile head, which may lead to inconsistent pile head elevations and affect the subsequent construction quality and efficiency.

[0007] Therefore, how to simplify the pile head cutting process, improve construction efficiency, and reduce the labor intensity and safety risks of construction workers has become a technical problem to be solved by the present utility model. Utility Model Content

[0008] The technical problem solved by the present invention is to provide a quick-cut pile head steel bar connector for bored piles in response to the defects existing in the above-mentioned prior art, so as to solve the problem that the pile head cutting process proposed in the above-mentioned background technology requires manual chiseling, which is heavy, time-consuming, labor-intensive and poses safety risks.

[0009] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows:

[0010] A quick-cut pile head steel bar connector for a cast-in-place pile, comprising a steel bar sleeve and a cutting pipe;

[0011] The cut-off tube includes a bottom, a top, and a tube channel;

[0012] The cutting pipe is passed through the pipe passage so that the bottom of the cutting pipe is sleeved on the outside of the steel sleeve, wherein the sleeve formation forms a lower cavity and an upper cavity in the pipe passage of the cutting pipe;

[0013] When the cutting pipe is sleeved on the steel sleeve through the lower cavity, the cutting pipe and the steel sleeve are fixedly connected;

[0014] The upper cavity of the cut-off tube forms the cavity portion to be cut off.

[0015] As a further solution of the present invention, the steel bar sleeve includes but is not limited to a steel bar straight thread sleeve serving as a steel bar connection accessory.

[0016] As a further solution of the present invention, the cutting tube includes but is not limited to being made of a material that is easy to cut, such as metal or plastic.

[0017] As a further solution of the present invention, the cutting pipe is fixedly connected to the steel sleeve by adopting methods including but not limited to nesting, bonding, hot pressing deformation or extrusion deformation.

[0018] As a further solution of the present invention, the cast-in-place pile quick-cut pile head steel bar connector may further provide a barrier layer in the upper cavity of the cutting pipe to prevent cement slurry from clogging the upper cavity during concrete pouring.

[0019] As a further solution of the present invention, the cast-in-place pile quick-cut pile head steel bar connector can also provide a barrier layer on the top of the steel bar sleeve to prevent mud and sand from falling into the interior of the steel bar sleeve when cutting the pile.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Improved construction efficiency: By using the cast-in-place pile quick-cut rebar connector, construction workers can directly use a wire saw or circular saw to cut the pile head at the designed elevation, eliminating the need for tedious manual chiseling. This greatly simplifies the pile head cutting process, shortens the construction period, and significantly improves construction efficiency.

[0022] 2. Reduce labor intensity: The traditional method of cutting pile heads requires construction workers to hold heavy tools for a long time and perform high-intensity labor. The quick-cut pile head steel bar connector of the utility model enables construction workers to easily cut off the pile head, greatly reducing labor intensity.

[0023] 3. Improve construction safety: It avoids potential safety hazards such as splashing concrete fragments during the manual removal of pile heads. Using a rope saw or a circular saw to cut off pile heads is safer and more controllable, effectively reducing the occurrence of work-related accidents.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only 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 labor.

[0026] Figure 1 It is a structural diagram of the present utility model.

[0027] Figure 2 This is a reference diagram of the usage state of the utility model.

[0028] The reference numerals and names in the figures are as follows:

[0029] Rebar sleeve 1, cut-off pipe 2, bottom 3, top 4, pipe channel 5, upper cavity 6, reinforcement 7, barrier layer 8, pile top design elevation 9, pile reinforcement cage 10, longitudinal reinforcement 11 and pile body concrete 12. DETAILED DESCRIPTION

[0030] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1 —2. In an embodiment of the present invention, a cast-in-place pile quick-cut pile head steel bar connector includes a steel bar sleeve 1 and a cutting tube 2; the cutting tube 2 includes a bottom 3, a top 4, and a pipe passage 5; the cutting tube 2 is sleeved with the bottom 3 of the cutting tube 2 outside the steel bar sleeve 1 through the pipe passage 5, wherein the sleeve arrangement forms a lower cavity (not shown) and an upper cavity 6 of the pipe passage 5 of the cutting tube 2;

[0032] The cutting tube 2 is inserted into the rebar sleeve 1 through its lower cavity. Its connection method can be selected from, but is not limited to, nesting, bonding, hot pressing, or extrusion to securely connect to the rebar sleeve 1. The upper cavity 6 of the cutting tube 2 forms the cavity to be cut. The rebar sleeve 1 can be selected from, but is not limited to, a straight threaded rebar sleeve. The cutting tube 2 is made of a material that is easy to cut, such as metal or plastic. The cutting tube 2 can be cut using a wire saw or a wheel cutter, both of which are well-known and applicable to those skilled in the art.

[0033] The cast-in-place pile quick-cut pile head steel bar connector also includes a barrier layer 8, which can be, but is not limited to, a rubber plug 8 or a plastic tape with a barrier function, such as Figure 1 As shown, when the barrier layer 8 is a rubber plug, the upper part of the cut-off tube 2 is sealed by the rubber plug; in another embodiment, the barrier layer 8 can also be a tape, and the tape can be a transparent tape known to those skilled in the art. The sealing effect is achieved by cutting a portion of the tape and sticking it to the upper end of the cut-off tube 2. These are all extended implementation methods known to those skilled in the art to better prevent cement slurry from clogging the upper cavity.

[0034] The top of the steel sleeve 1 is provided with a rubber plug or tape layer for sealing the top of the steel sleeve 1, that is, before the top of the steel sleeve 1 is connected to the cutting pipe 2, the top of the steel sleeve 1 can be sealed by the rubber plug or tape layer, and then the cutting pipe 2 and the steel sleeve 1 are fixedly connected by clip connection, nesting, bonding, hot pressing deformation or extrusion deformation, so as to prevent sand and dust from falling into the steel sleeve during cutting.

[0035] During construction, the steel sleeve 1 is first connected to the top of the longitudinal reinforcement 11 of the pile reinforcement cage 10 below the designed elevation 9 of the pile top. The cutting tube 2 is extended upward for a certain length and pre-buried in the pile concrete 12. After the concrete is poured and solidified, the pile head can be completely cut off at the designed elevation 9 of the pile top using a wire saw or a circular saw, eliminating the need for tedious manual chiseling. After cutting, the cross-section of the pile head is flat, and the cavity of the steel sleeve 1 is partially exposed. In subsequent processes, the pre-cut short steel bars with connecting threads can be directly screwed into the steel sleeve 1 to complete the steel connection.

[0036] Example 1:

[0037] Pile foundation construction is a critical step on construction sites. Traditionally, pile head removal requires workers to manually remove excess concrete using tools like jackhammers. This process is not only inefficient but also poses serious safety risks. To address this issue, a cast-in-place pile quick-cut rebar connector has been developed.

[0038] This connector consists of a rebar sleeve 1 and a cutting tube 2. The rebar sleeve 1 is a straight threaded sleeve for connecting rebar. The cutting tube 2 is made of plastic and is fitted over the rebar sleeve 1 through a pipe passage 5. The pipe passage 5 of the cutting tube 2 is divided into a lower cavity and an upper cavity 6.

[0039] During construction, the steel sleeve 1 is first connected to the top of the longitudinal reinforcement of the pile head reinforcement cage below the designed pile top elevation. The cutting pipe 2 is extended upward for a certain length and pre-buried in the pile body concrete. After the concrete is poured and solidified, the pile head can be completely cut off at the designed elevation of the pile top using a rope saw or a circular saw, eliminating the need for tedious manual chiseling. After cutting, the cross-section of the pile head is flat, and the cavity of the steel sleeve 1 is partially exposed. In subsequent processes, the pre-cut short steel bars with connecting threads can be directly screwed into the steel sleeve 1 to complete the connection of the steel bars.

[0040] Example 2:

[0041] This embodiment provides a quick-cut pile head rebar connector, primarily used in the pile head cutting process during construction. The connector comprises a rebar sleeve 1 and a cutting tube 2, with special attention paid to preventing cement slurry from clogging the cutting tube 2 and preventing dust from falling into the rebar sleeve 1 during pile cutting.

[0042] The rebar sleeve 1 is a straight threaded rebar sleeve, a widely used connector in construction. The cutting tube 2 is made of plastic for easy cutting and is secured to the rebar sleeve 1 via a snap-fit connection. The cutting tube 2 consists of a bottom, a top, and a channel 5. When the cutting tube 2 is inserted over the rebar sleeve 1, it forms a lower cavity and an upper cavity 6.

[0043] In order to prevent cement slurry from clogging the cut-off tube 2 during the pouring of pile concrete, this embodiment provides a barrier layer in the upper cavity 6 of the cut-off tube 2. The barrier layer may include but is not limited to a rubber plug 8 or plastic tape with a barrier function. This rubber plug 8 can be inserted into the cut-off tube 2 before the pile concrete is poured to seal the top of the cut-off tube 2, thereby effectively preventing the entry of cement slurry. In another case, instead of using the rubber plug 8, a plastic tape layer can be provided at the top of the cut-off tube 2 and the top of the steel sleeve 1 for sealing. This simultaneously prevents the pouring of cement slurry from clogging the cut-off tube 2 and prevents sand and dust from falling into the steel sleeve 1 when cutting the pile. These are all extended implementation methods known to those of ordinary skill in the art, which help to ensure connection efficiency and accuracy.

[0044] The use of this cast-in-place pile quick-cut rebar connector significantly improves construction efficiency. Pile heads, which previously required manual chiseling, can now be cut and connected in a fraction of the time. Furthermore, by eliminating the safety risks of manual chiseling, the safety of construction workers is better protected.

[0045] In general, this cast-in-place pile quick-cut pile head steel bar connector not only simplifies the pile head cutting process and improves construction efficiency, but also reduces the labor intensity and safety risks of construction workers.

[0046] In the present invention, unless otherwise clearly stipulated and limited, the terms "install", "set", "connect", "fix", "screw" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0047] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced within the present invention.

Claims

1. A quick-cut pile head steel bar connector for a bored pile, characterized by: Includes rebar sleeves and cut-off tubes; The cut-off tube includes a bottom, a top, and a tube channel; The cutting pipe is passed through the pipe passage so that the bottom of the cutting pipe is sleeved on the outside of the steel sleeve, wherein the sleeve formation forms a lower cavity and an upper cavity in the pipe passage of the cutting pipe; When the cutting pipe is sleeved on the steel sleeve through the lower cavity, the cutting pipe and the steel sleeve are fixedly connected; The upper cavity of the cut-off tube forms the cavity portion to be cut off.

2. A cast-in-place pile quick-cut pile head steel bar connector according to claim 1, characterized in that: Rebar sleeves include but are not limited to straight threaded rebar sleeves used as rebar connection accessories.

3. The quick-cut pile head steel bar connector for bored piles according to claim 1, characterized in that: The cutting tube includes but is not limited to being made of a material that is easy to cut, such as metal or plastic.

4. The quick-cut pile head steel bar connector for bored piles according to claim 1, characterized in that: The cut-off pipe is fixedly connected to the steel sleeve by adopting methods including but not limited to nesting, bonding, hot pressing deformation or extrusion deformation.

5. A cast-in-place pile quick-cut pile head steel bar connector according to claim 4, characterized in that: The cast-in-place pile quick-cut pile head steel bar connector can also provide a barrier layer in the upper cavity of the cut-off pipe to prevent cement slurry from clogging the upper cavity when pouring concrete.

6. A cast-in-place pile quick-cut pile head steel bar connector according to claim 4, characterized in that: The cast-in-place pile quick-cut pile head steel bar connector can also set a barrier layer on the top of the steel bar sleeve to prevent mud and sand from falling into the inside of the steel bar sleeve when cutting the pile.

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