Cast-in-place pile casing device

Abstract

The utility model relates to the technical field of pile casings, and discloses a cast-in-place pile casing device which is characterized by comprising a pile casing body, the upper portion of the pile casing body is movably sleeved with an outer cylinder, a first supporting plate is fixedly installed on the outer side of the outer cylinder, and a pressing plate is rotationally connected to the outer side of the first supporting plate; a second supporting plate is fixedly mounted at the bottom of the pressing plate; a second supporting plate is fixedly mounted at the bottom of the pressing plate, and a fixing plate is rotationally connected to one side of the second supporting plate. According to the cast-in-place pile casing device, the outer cylinder, the first supporting plate, the pressing plate, the fixing plate and the positioning plate are arranged on the outer side of the casing body, and the bottom of the fixing plate is erected on the top of the positioning plate, so that an external pressing machine can be used for pressing the top of the pressing plate on the pressing plate, and the contact range of the casing body and the external pressing machine is enlarged; and pressure can be conveniently applied to the pile casing body, and the pile casing body can be better inserted into soil.

Description

Technical Field

[0001] This utility model relates to the field of casing technology, specifically a casing device for cast-in-place piles. Background Technology

[0002] Casings are used in the construction of bored piles. They are made of steel and are cylindrical. Generally, they are steel casings with a wall thickness of 10mm. They are typically used for construction safety and fixation. The casing joints must be free of protrusions inside the casing, and the casing should be resistant to tension and compression, and leak-proof.

[0003] This indicates that the casing wall is relatively thin. When the casing is pressed into the soil, the contact area between the casing and the pressurizing equipment is small. Furthermore, due to the thinness of the casing wall, the contact surface between the pressurizing equipment and the casing is easily damaged during pressing. Utility Model Content

[0004] The purpose of this utility model is to provide a casing device for cast-in-place piles to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a casing device for cast-in-place piles, characterized in that it comprises:

[0006] The protective sleeve body has an outer sleeve movably sleeved on its upper part. A first support plate is fixedly installed on the outer side of the outer sleeve, and a pressure plate is rotatably connected to the outer side of the first support plate.

[0007] A second support plate is fixedly installed at the bottom of the pressure plate, and a fixing plate is rotatably connected to one side of the second support plate. A positioning plate is fixedly installed on the outer side of the outer cylinder. The inner cavity of the outer cylinder is provided with internal threads, and the outer side of the upper part of the protective cylinder body is provided with external threads.

[0008] As a further improvement of this utility model, a screw is movably sleeved in the inner cavity of the pressure plate, and an insertion head is fixedly connected to one end of the screw.

[0009] As a further improvement of this utility model, the inner cavity of the pressure plate is provided with a thread adapted to the screw.

[0010] As a further improvement of this utility model, the insertion head is conical in shape, and a spiral is provided on the outer side of the insertion head.

[0011] As a further improvement of this utility model, a retaining ring is fixedly installed on the top of the outer cylinder, and the inner wall of the retaining ring is within the same circumferential range as the inner wall of the protective cylinder body. The retaining ring on the top of the outer cylinder facilitates positioning of the outer cylinder when it is fixed to the outside of the protective cylinder body.

[0012] As a further improvement of this utility model, the outer cylinder is provided with a number of pressure plates, fixing plates and positioning plates, which are evenly distributed along the circumference of the outer cylinder.

[0013] As a further improvement of this utility model, the side of the pressure plate closest to the outer cylinder is located on the outer side of the positioning plate away from the outer cylinder. Because the side of the pressure plate closest to the outer cylinder is located on the outer side of the positioning plate away from the outer cylinder, it can be folded onto the outer side of the positioning plate when the pressure plate and fixing plate are not needed, facilitating transportation.

[0014] As a further improvement of this utility model, the bottom of the fixing plate is arc-shaped, and the pressure plate is in a horizontal state when the bottom of the fixing plate contacts the outer side of the outer cylinder and the top of the positioning plate respectively.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The cast-in-place pile casing device consists of an outer cylinder, a first support plate, a pressure plate, a fixing plate, and a positioning plate on the outside of the casing body. The bottom of the fixing plate is placed on the top of the positioning plate, allowing an external pressure machine to apply pressure to the top of the pressure plate. This increases the contact area between the casing body and the external pressure machine, facilitating pressure application on the casing body and better inserting it into the soil.

[0017] 2. The cast-in-place pile casing device uses a threaded connection between the screw and the pressure plate, which makes it easy to unscrew the screw from the pressure plate and insert it into the soil, thus facilitating the support and protection of the casing body. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a cast-in-place pile casing device according to the present invention;

[0020] Figure 2 This is a bottom view of the structure of a cast-in-place pile casing device according to the present invention;

[0021] Figure 3 This is an exploded view of the casing body and outer cylinder of a cast-in-place pile casing device according to this utility model.

[0022] In the diagram: 1. Casing body; 2. Outer cylinder; 3. First support plate; 4. Pressure plate; 5. Second support plate; 6. Fixing plate; 7. Positioning plate; 8. Internal thread; 9. External thread; 10. Fixed ring; 11. Screw; 12. Insertion head. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-3 This utility model provides a casing device for cast-in-place piles, characterized in that it includes:

[0025] The casing body 1 has an outer cylinder 2 movably sleeved on its upper part. A first support plate 3 is fixedly installed on the outer side of the outer cylinder 2, and a pressure plate 4 is rotatably connected to the outer side of the first support plate 3.

[0026] A second support plate 5 is fixedly installed at the bottom of the pressure plate 4. A fixing plate 6 is rotatably connected to one side of the second support plate 5. A positioning plate 7 is fixedly installed on the outer side of the outer cylinder 2. The inner cavity of the outer cylinder 2 is provided with an internal thread 8, and the outer side of the upper part of the casing body 1 is provided with an external thread 9. With the outer cylinder 2, the first support plate 3, the pressure plate 4, the fixing plate 6, and the positioning plate 7 installed on the outer side of the casing body 1, the bottom of the fixing plate 6 is placed on the top of the positioning plate 7. This allows the pressure plate 4 to be pressed by an external press, increasing the contact area between the casing body 1 and the external press, facilitating the pressing of the casing body 1, and better inserting the casing body 1 into the soil.

[0027] In this embodiment, a screw 11 is movably sleeved inside the inner cavity of the pressure plate 4, and an insertion head 12 is fixedly connected to one end of the screw 11. The inner cavity of the pressure plate 4 is provided with a thread that matches the screw 11. The screw 11 and the pressure plate 4 are connected by a thread, which makes it easy to unscrew the screw 11 from the pressure plate 4 and insert it into the soil, thus facilitating the support and protection of the casing body 1.

[0028] In this embodiment, the insertion head 12 is conical in shape, and a spiral is provided on the outer side of the insertion head 12. The shape of the insertion head 12 and the spiral on its outer side increase the connection strength between the insertion head 12 and the soil.

[0029] In this embodiment, a retaining ring 10 is fixedly installed on the top of the outer cylinder 2, and the inner wall of the retaining ring 10 is within the same circumferential range as the inner wall of the protective cylinder body 1. The retaining ring 10 on the top of the outer cylinder 2 facilitates the positioning of the outer cylinder 2 when it is fixed to the outside of the protective cylinder body 1.

[0030] In this embodiment, the outer cylinder 2 is provided with a plurality of pressure plates 4, fixing plates 6, and positioning plates 7 on its outer side, and the plurality of pressure plates 4, fixing plates 6, and positioning plates 7 are evenly distributed along the circumference of the outer cylinder 2. By providing a plurality of pressure plates 4, fixing plates 6, and positioning plates 7 on the outer side of the outer cylinder 2, the downward movement of the protective cylinder body 1 using the pressure plates 4, fixing plates 6, and positioning plates 7 is more stable.

[0031] In this embodiment, the side of the pressure plate 4 closest to the outer cylinder 2 is on the outer side of the positioning plate 7 away from the outer cylinder 2. By placing the side of the pressure plate 4 closest to the outer cylinder 2 on the outer side of the positioning plate 7 away from the outer cylinder 2, it can be folded on the outer side of the positioning plate 7 when the pressure plate 4 and the fixing plate 6 are not needed, which facilitates transportation.

[0032] In this embodiment, the bottom of the fixing plate 6 is arc-shaped. When the bottom of the fixing plate 6 contacts the outer side of the outer cylinder 2 and the top of the positioning plate 7, the pressure plate 4 is in a horizontal state. By fixing the bottom of the fixing plate 6 in contact with the outer side of the outer cylinder 2 and the top of the positioning plate 7, the position of the pressure plate 4 can be limited. When the pressure plate 4 is in a horizontal state, it will not rotate when an external force is applied.

[0033] Working principle: When using this device, rotate the outer cylinder 2 to the outside of the casing body 1, so that the bottom of the fixing ring 10 contacts the top of the casing body 1. Place the bottom of the fixing plate 6 on the top of the positioning plate 7, keeping the pressure plate 4 horizontal. Use an external press to apply pressure to the top of the pressure plate 4, increasing the contact area between the casing body 1 and the external press, thus facilitating pressure application to the casing body 1.

[0034] After inserting the casing body 1 into the soil, lift the pressure plate 4 upwards to separate the fixing plate 6 from the positioning plate 7. Through the threaded connection between the screw 11 and the pressure plate 4, screw 11 is unscrewed from the pressure plate 4, and the insertion head 12 is inserted into the soil to support and protect the casing body 1.

[0035] 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 bored pile casing apparatus, characterized by, include: The protective sleeve body (1) has an outer sleeve (2) movably sleeved on the upper part of the protective sleeve body (1). A first support plate (3) is fixedly installed on the outer side of the outer sleeve (2). A pressure plate (4) is rotatably connected to the outer side of the first support plate (3). The bottom of the pressure plate (4) is fixedly installed with a second support plate (5), and a fixing plate (6) is rotatably connected to one side of the second support plate (5). A positioning plate (7) is fixedly installed on the outer side of the outer cylinder (2). The inner cavity of the outer cylinder (2) is provided with an internal thread (8), and the outer side of the upper part of the protective cylinder body (1) is provided with an external thread (9).

2. A bored pile casing apparatus according to claim 1, wherein, The inner cavity of the pressure plate (4) is movably fitted with a screw (11), and one end of the screw (11) is fixedly connected to an insertion head (12).

3. A bored pile casing apparatus according to claim 2, wherein, The inner cavity of the pressure plate (4) is provided with a thread that is compatible with the screw (11).

4. A bored pile casing apparatus according to claim 2, wherein, The insertion head (12) is conical in shape, and a spiral is provided on the outer side of the insertion head (12).

5. A bored pile casing apparatus according to claim 1, wherein, A retaining ring (10) is fixedly installed on the top of the outer cylinder (2), and the inner wall of the retaining ring (10) is in the same circumferential range as the inner wall of the protective cylinder body (1).

6. A bored pile casing apparatus according to claim 1, wherein, The outer cylinder (2) is provided with several pressure plates (4), fixing plates (6) and positioning plates (7) on its outer side. The pressure plates (4), fixing plates (6) and positioning plates (7) are evenly distributed along the circumference of the outer cylinder (2).

7. A bored pile casing apparatus according to claim 1, wherein, The pressure plate (4) is located on the side of the outer cylinder (2) that is closer to the outer cylinder (2) and on the side of the positioning plate (7) that is farther away from the outer cylinder (2).

8. A casing device for cast-in-place piles according to claim 1, characterized in that, The bottom of the fixing plate (6) is arc-shaped. When the bottom of the fixing plate (6) contacts the outer side of the outer cylinder (2) and the top of the positioning plate (7), the pressure plate (4) is in a horizontal state.

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