A casing anti-sliding device

Abstract

The utility model provides a device for preventing casing from sliding down, which comprises an anti-skid unit, the anti-skid unit comprises a supporting plate and a casing support cylinder, the casing support cylinder is fixed on the supporting plate, the supporting plate is provided with a through hole coaxial with the casing support cylinder, a plurality of mounting holes are uniformly distributed on the sidewall of the casing support cylinder around the axis, the mounting holes are in communication with the inner and outer walls and the top surface of the casing support cylinder, each mounting hole corresponds to a set of limiting anti-skid components, the limiting anti-skid components comprise a limiting plate and a limiting plate fixing seat, the limiting plate fixing seat is fixed on the outside of the casing support cylinder, the limiting plate is fixed on the limiting plate fixing seat, and the limiting plate extends into the casing support cylinder through the mounting hole. The utility model has the beneficial effects of solving the problem that the casing is prone to overall sinking or deviation due to the effects of external forces such as mud scouring and drilling machine vibration during drilling or concrete pouring, thereby causing the pile position deviation to exceed the standard requirements.

Description

Technical Field

[0001] This utility model relates to the field of protective cylinder technology, specifically a protective cylinder anti-slip device. Background Technology

[0002] The casing is used in the construction of bored piles. It is made of steel, cylindrical in shape, and is generally a steel casing with a wall thickness of 10mm. It is generally used for construction prevention and fixation. When positioning the casing, the center of the pile position is used as the center, and the position of the casing is determined on the soil according to the radius of the casing. After the casing is in place, pressure is applied to bury it.

[0003] After the casing is positioned, it needs to be buried in the soil layer by applying pressure. However, during the drilling or concrete pouring process, the casing is prone to sinking or shifting as a whole due to external forces such as mud erosion and drilling machine vibration, resulting in pile position deviation exceeding the specification requirements. In particular, when the casing slowly slides down, it is often not discovered until the hole is formed, which may not only cause rework, but also affect the quality of the pile foundation. Summary of the Invention

[0004] The problem to be solved by this utility model is to provide a protective sleeve anti-slip device, which overcomes the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a protective cylinder anti-slip device, including an anti-slip unit, the anti-slip unit including a support plate and a protective cylinder support cylinder, the protective cylinder support cylinder being fixed to the support plate, the support plate having a through hole coaxial with the protective cylinder support cylinder, the side wall of the protective cylinder support cylinder having a plurality of mounting ports evenly distributed around its axis, the mounting ports communicating with the inner and outer walls and top surface of the protective cylinder support cylinder, each mounting port corresponding to a set of limiting anti-slip components, the limiting anti-slip components including a limiting plate and a limiting plate fixing seat, the limiting plate fixing seat being fixed to the outside of the protective cylinder support cylinder, the limiting plate being fixed to the limiting plate fixing seat, the limiting plate extending into the protective cylinder support cylinder through the mounting port.

[0006] Optionally, the inner diameter of the through hole is equal to the inner diameter of the protective sleeve support cylinder.

[0007] Optionally, the bottom surface of the limiting plate is connected to the side surface located inside the protective cylinder by a stepped surface, the bottom surface of the limiting plate coincides with the surface of the support plate, the horizontal plane of the stepped surface coincides with the bottom surface of the mounting opening, and the vertical plane of the stepped surface contacts the outer wall of the protective cylinder.

[0008] Optionally, the limiting plate fixing seat includes two opposing assembly plates, the assembly plates are fixed to the support plate, the two assembly plates are respectively located on both sides of the limiting plate, and the limiting plate and the assembly plates are fixedly connected.

[0009] Optionally, it also includes a support unit, wherein the support plate is fixed to the top of the support unit, the support unit has a hollow structure in the middle, the hollow part of the support unit is directly opposite the through hole on the support plate, the outer edge of the hollow part is outside the edge of the through hole, and the circumferential edge of the support unit is outside the circumferential edge of the support plate.

[0010] Optionally, the support unit includes a square base and a support component located within the square base, the hollow portion being formed at the center of the support component, and the support plate being fixed to the support component.

[0011] Optionally, the support assembly includes two parallel ground support plates and two parallel parallel fixing plates. The two ends of the ground support plates are fixed to the inner wall of the square base. The parallel fixing plates are located on the ground support plates and are perpendicular to the ground support plates. The two ends of the parallel fixing plates are fixed to the inner wall of the square base. The bottom surface of the parallel fixing plates is fixed to the top surface of the ground support plates. The support plate is fixed to the parallel fixing plates. The cross-section of the ground support plates is trapezoidal.

[0012] Optionally, it also includes two secondary fixing plates, which are arranged opposite to each other. One end of the secondary fixing plate is fixed to the inner wall of the square frame base, the bottom surface of the secondary fixing plate is fixed to the top surface of the ground support plate, the top surface of the secondary fixing plate is flush with the top surface of the parallel fixing plate, and the top surface of the secondary fixing plate is fixed to the support plate.

[0013] Optionally, a second square frame piece is fixed to the bottom surface of the square frame base. The outer edge of the second square frame piece is located outside the outer edge of the square frame base. Multiple triangular reinforcing pieces are spaced apart between the second square frame piece and the side surface of the square frame base.

[0014] Optionally, the top surface of the square frame base has a first square frame piece, a hanging ring is provided on the first square frame piece, and a level is provided at the four corners of the first square frame piece.

[0015] The advantages and positive effects of this utility model are as follows: Due to the adoption of the above technical solution, after the casing is inserted into the casing support cylinder, multiple limiting and anti-slip components are tightly abutted against the bottom of the casing, forming a multi-directional circumferential limiting structure, thereby preventing the casing from undergoing axial displacement and sliding. At the same time, the square frame base and the support components constitute a stable support system to evenly and widely distribute the load transmitted by the casing to the ground, thereby ensuring the stability of the casing during construction. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0017] Figure 2 yes Figure 1 Schematic diagram of the anti-slip unit structure;

[0018] Figure 3 yes Figure 1 A partial cross-sectional view of the central support unit;

[0019] In the diagram: 100, anti-slip unit; 101, square support plate; 102, protective sleeve support cylinder; 103, mounting port; 104, limiting anti-slip component; 104a, assembly plate; 104b, limiting plate; 104c, pin; 200, support unit; 201, square frame base; 202, support component; 202a, ground support plate; 202b, parallel fixing plate; 202c, secondary fixing plate; 203, second square frame piece; 204, reinforcing piece; 205, lifting ring; 206, level. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention. In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In the description of the present invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood through specific circumstances.

[0021] like Figure 1 , Figure 2As shown, this utility model provides a protective sleeve anti-slip device, including an anti-slip unit 100. The anti-slip unit 100 includes a square support plate 101 and a protective sleeve support cylinder 102. The protective sleeve support cylinder 102 is fixed on the square support plate 101. The square support plate 101 has a through hole coaxial with the protective sleeve support cylinder 102. Multiple mounting ports 103 are evenly distributed around the axis on the side wall of the protective sleeve support cylinder 102. The mounting ports 103 communicate with the inner and outer walls and the top surface of the protective sleeve support cylinder 102. Each mounting port 103 corresponds to a set of limiting anti-slip components 104. The limiting anti-slip components 104 include a limiting plate 104b and a limiting plate fixing seat. The limiting plate fixing seat is fixed to the outside of the protective sleeve support cylinder 102, and the limiting plate 104b is fixed on the limiting plate fixing seat. The limiting plate 104b extends into the protective sleeve support cylinder 102 through the mounting port 103.

[0022] When the above-mentioned device is in use, after the casing is inserted into the casing support cylinder 102 from above, the limiting plate 104b in the limiting and anti-slip assembly 104 at the mounting port 103 on the side wall of the casing support cylinder 102 abuts against the bottom end of the casing. The casing support cylinder 102 constrains the casing in the circumferential direction, and the limiting plate 104b constrains the casing in the axial direction, thereby resisting external forces such as mud erosion and drilling rig vibration, and preventing the casing from sliding or displacing inside the casing support cylinder 102. The inner diameter of the through hole on the square support plate 101 is equal to the inner diameter of the casing support cylinder 102, so as to avoid the directional support plate 101 obstructing the smooth flow of the passage inside the casing.

[0023] The bottom surface of the limiting plate 104b transitions to the side surface inside the casing support cylinder 102 via a stepped surface. The bottom surface of the limiting plate 104b coincides with the surface of the support plate 101, the horizontal plane of the stepped surface coincides with the bottom surface of the mounting opening 103, and the vertical plane of the stepped surface contacts the outer wall of the casing support cylinder 102. The stepped surface allows the limiting plate 104b to fit better with the casing support cylinder 102, making the fixing of the limiting plate 104b more reliable and providing better stable support for the casing.

[0024] In this embodiment, the limiting plate fixing seat includes two opposing assembly plates 104a, which are fixed to the directional support plate 101. The two assembly plates 104a are located on both sides of the limiting plate 104b, and the limiting plate 104b and the assembly plates 104a are fixedly connected by fasteners such as pins 104c or bolts. The structure of this limiting plate fixing seat facilitates the assembly and disassembly of the limiting plate 104b. The assembly plate 104a is triangular in shape, and the bottom surface of the limiting plate 104b is in contact with the bottom of the inner wall of the mounting port 103. The mounting port 103 provides horizontal limiting and vertical support for the protective cylinder limiting plate 104b. The triangular shape of the assembly plate 104a is used to enhance its support capacity for the limiting plate 104b. When the protective sleeve is inserted into the protective sleeve support cylinder 102, the bottom surface of the limiting plate 104b is tightly fitted with the bottom of the inner wall of the mounting port 103, and the two sides of the limiting plate 104b are in contact with the vertical surfaces of the two sides of the inner wall of the mounting port 103. This allows the mounting port 103 to restrict the displacement of the limiting plate 104b in the horizontal direction and provide stable support in the vertical direction, thus providing a stable limit for the protective sleeve. The structure of the limiting plate fixing seat is not limited to the structure listed in this embodiment. Any existing common structure that can fix the limiting plate 104c to the mounting port 103 can be used in this device and is also a technical feature included in this application.

[0025] To increase the contact area between the device and the ground at the construction site and reduce the pressure per unit area of ​​the device on the ground, the device also includes a support unit 200, such as... Figure 1 , Figure 3 As shown, the support plate 101 is fixed to the top of the support unit 200. The support unit 200 has a hollow structure in the middle, with the hollow part of the support unit 200 facing the through hole on the support plate 101. The outer edge of the hollow part is outside the edge of the through hole, and the circumferential edge of the support unit 200 is outside the circumferential edge of the support plate 101. Under the action of the support unit 200, because the support unit 200 expands the contact area between the device and the bottom surface, the load from the casing and its upper part borne by the square support plate 101 can be evenly transferred and distributed to the support unit 200, and then transferred to the foundation by the support unit 200. This improves the overall load-bearing capacity and anti-overturning performance of the device, and provides stable and reliable support for the casing during construction. The equipment and cement slurry fall smoothly through the inner cavity of the casing and through the through hole of the square support plate 101, and the path is connected with the hollow part in the support unit 200, avoiding the support unit 200 from blocking the passage inside the casing.

[0026] This embodiment provides the following: Figure 3The specific structure of the support unit 200 shown is not limited to the specific structure of the support unit 200 in the implementation. Any structure in the prior art that can support the anti-slip unit 100 in this device is a technical feature to be protected by this application. The support unit 200 includes a square base 201 and a support component 202 located in the square base 201. A hollow part is formed in the center of the support component 202, and the support plate 101 is fixed on the support component 202.

[0027] The support component 202 inside the square base 201 is used to securely connect the square support plate 101. During drilling or concrete pouring operations, the equipment and cement slurry pass through the inner cavity of the casing and smoothly fall through the circular through-hole of the square support plate 101. The hollow part is designed so that its path completely avoids the support component 202, thus avoiding interference. Under the action of the support component 202, the load borne by the square support plate 101 from the casing and its upper part can be evenly transferred and distributed to the square base 201, and then transferred from the square base 201 to the foundation. This improves the overall load-bearing capacity and anti-overturning performance of the device and provides stable and reliable support for the casing during construction.

[0028] This embodiment provides a specific structure for the support component 202, but the scope of protection of this application is not limited to this structure, such as... Figure 3 The support assembly 202 includes two parallel ground support plates 202a and two parallel parallel fixing plates 202b. The two ends of the ground support plates 202a are fixed to the inner wall of the square base 201. The parallel fixing plates 202b are located on the ground support plates 202a and are perpendicular to the ground support plates 202a. The two ends of the parallel fixing plates 202b are fixed to the inner wall of the square base 201. The bottom surface of the parallel fixing plates 202b and the top surface of the ground support plates 202a are fixed to each other. The support plate 101 is fixed on the parallel fixing plates 202b. It also includes two secondary fixing plates 202c, which are arranged opposite each other. One end of the secondary fixing plate 202c is fixed to the inner wall of the square base 201. The bottom surface of the secondary fixing plate 202c is fixed to the top surface of the ground support plate 202a. The top surface of the secondary fixing plate 202c is flush with the top surface of the parallel fixing plate 202b. The top surface of the secondary fixing plate 202c is fixed to the support plate 101.

[0029] The ground support plate 202a and the parallel fixing plate 202b are arranged at a 90-degree angle in the horizontal direction to form a grid-shaped foundation support frame. There are gaps between the two ground support plates 202a, the parallel fixing plate 202b, and the secondary fixing plate 202c, so that during drilling or concrete pouring operations, the drill rod and cement slurry can fall vertically along the circular opening of the square support plate 101, completely avoiding the structural area of ​​the support component 202. When the square support plate 101 bears the casing and construction load, the load is transferred to the ground support plate 202a through the parallel fixing plate 202b and the secondary fixing plate 202c, and then transmitted to the foundation through the ground support plate 202a and the inner wall of the square frame base 201. This reduces the cost of support materials while maximizing the gradual distribution and stable transfer of load.

[0030] The width of the ground support plate 202a increases from top to bottom, forming an isosceles trapezoid that is narrower at the top and wider at the bottom. The ground support plate 202a can expand the contact area with the ground by using the wider cross section at the bottom, and distribute the upper load evenly to the surface.

[0031] The trapezoidal structure can further reduce the center of gravity of the ground support plate 202a, thereby improving the support capacity of the ground support plate 202a.

[0032] To further enhance the stability of the aforementioned device, a second square frame plate 203 is fixed to the bottom surface of the square frame base 201. The outer edge of the second square frame plate 203 is located outside the outer edge of the square frame base 201. Multiple triangular reinforcing plates 204 are spaced apart on the sides of the second square frame plate 203 and the square frame base 201. The multiple reinforcing plates 204 form a triangular mechanical support system with the square frame base 201 and the lower second square frame plate 203, which, together with the second square frame plate 203, enhances the overall rigidity and deformation resistance of the square frame base 201. Furthermore, the second square frame plate 203 can increase the contact area between the square frame base 201 and the ground with less material, preventing the square frame base 201 from sinking on the ground surface. When the device is subjected to the casing and construction loads, the reinforcing plates 204 evenly distribute the external force to the second square frame plate 203, and then transfer it to the foundation through the second square frame plate 203, effectively avoiding local stress concentration in the base and improving structural stability and durability.

[0033] The top surface of the rectangular base 201 has a first square frame piece, on which lifting rings 205 are installed. Levels 206 are installed at the four corners of the first square frame piece. The connection between the lifting rings 205 and the rectangular base 201 is reinforced. The lifting rings 205 on the first square frame piece are used for hoisting, transporting, and installing the device on-site. By locally thickening and welding reinforcement at the connection between the lifting rings 205 and the base, the tensile strength and shear resistance of the connection can be significantly improved. The level bubble 206 adopts a threaded interface or snap-fit ​​structure and can be detachably installed at the diagonal positions of the rectangular base 201, forming a three-dimensional level monitoring system. During device installation, construction personnel can quickly determine the level status of the rectangular base 201 by observing the position of the bubble in the level bubble and adjust the device's posture in a timely manner. The detachable design facilitates storage, maintenance, or replacement after installation.

[0034] The above-mentioned device is used as follows: First, the entire device is hoisted to the construction position using the lifting ring 205, and the horizontal status of the square base 201 is quickly detected by the diagonally distributed spirit level 206. If there is any tilt, it can be adjusted in time to ensure that the device is at the horizontal reference. Then, the limiting anti-slip component 104 is assembled. During assembly, the limiting plate 104b is placed on two adjacent assembly plates 104a. Then, the pin 104c is inserted through the two adjacent assembly plates 104a and the internal limiting plate 104b. The pin 104c is then tightened by the nut to securely lock the limiting plate 104b. After all the limiting plates 104b are fixedly installed, the protective cylinder is inserted into the protective cylinder support cylinder 102 from above. At this time, the limiting plate 104b at the mounting port 103 on the side wall of the protective cylinder support cylinder 102 supports the bottom of the protective cylinder and prevents the protective cylinder from sliding down the inner wall of the protective cylinder support cylinder 102.

[0035] During drilling or concrete pouring, the casing and its upper construction load are transferred to the square support plate 101, and then through the parallel fixing plate 202b and the secondary fixing plate 202c to the ground support plate 202a. The ground support plate 202a then distributes the load to the inner wall of the square frame base 201, and finally transfers it to the foundation. This maximizes the gradual distribution and stable transfer of the load, and provides stable and reliable support for the casing during construction.

[0036] The embodiments of this utility model have been described in detail above, but the content described is only a preferred embodiment of this utility model and should not be considered as limiting the scope of implementation of this utility model. All equivalent changes and improvements made in accordance with the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A device for preventing slippage of a protective sleeve, characterized in that: The device includes an anti-slip unit, which comprises a support plate and a protective sleeve support cylinder. The protective sleeve support cylinder is fixed to the support plate. The support plate has a through hole coaxial with the protective sleeve support cylinder. Multiple mounting ports are evenly distributed around the axis of the side wall of the protective sleeve support cylinder. The mounting ports communicate with the inner and outer walls and top surface of the protective sleeve support cylinder. Each mounting port corresponds to a set of limiting anti-slip components. The limiting anti-slip components include a limiting plate and a limiting plate fixing seat. The limiting plate fixing seat is fixed to the outside of the protective sleeve support cylinder, and the limiting plate is fixed to the limiting plate fixing seat. The limiting plate extends into the protective sleeve support cylinder through the mounting port.

2. The anti-slip device for the protective sleeve according to claim 1, characterized in that: The inner diameter of the through hole is equal to the inner diameter of the protective sleeve support cylinder.

3. The anti-slip device for the protective casing according to claim 1, characterized in that: The bottom surface of the limiting plate is connected to the side surface inside the protective cylinder by a stepped surface. The bottom surface of the limiting plate coincides with the surface of the support plate, the horizontal plane of the stepped surface coincides with the bottom surface of the mounting opening, and the vertical plane of the stepped surface contacts the outer wall of the protective cylinder.

4. The anti-slip device for the protective sleeve according to claim 3, characterized in that: The limiting plate fixing seat includes two opposing assembly plates, which are fixed to the support plate. The two assembly plates are located on both sides of the limiting plate, and the limiting plate and the assembly plates are fixedly connected.

5. The anti-slip device for the protective casing according to any one of claims 1-3, characterized in that: It also includes a support unit, the support plate is fixed to the top of the support unit, the support unit has a hollow structure in the middle, the hollow part of the support unit is directly opposite the through hole on the support plate, the outer edge of the hollow part is outside the edge of the through hole, and the circumferential edge of the support unit is outside the circumferential edge of the support plate.

6. The anti-slip device for the protective casing according to claim 5, characterized in that: The support unit includes a square base and a support component located within the square base. The hollow portion is formed at the center of the support component, and the support plate is fixed to the support component.

7. The anti-slip device for the protective sleeve according to claim 6, characterized in that: The support assembly includes two parallel ground support plates and two parallel fixed plates. The two ends of the ground support plates are fixed to the inner wall of the square base. The parallel fixed plates are located on the ground support plates and are perpendicular to the ground support plates. The two ends of the parallel fixed plates are fixed to the inner wall of the square base. The bottom surface of the parallel fixed plates is fixed to the top surface of the ground support plates. The support plate is fixed to the parallel fixed plates. The cross-section of the ground support plates is trapezoidal.

8. The anti-slip device for the protective casing according to claim 7, characterized in that: It also includes two secondary fixing plates, which are arranged opposite to each other. One end of each secondary fixing plate is fixed to the inner wall of the square frame base. The bottom surface of each secondary fixing plate is fixed to the top surface of the ground support plate. The top surface of each secondary fixing plate is flush with the top surface of the parallel fixing plate. The top surface of each secondary fixing plate is fixed to the support plate.

9. The anti-slip device for the protective sleeve according to claim 8, characterized in that: A second square frame piece is fixed to the bottom surface of the square frame base. The outer edge of the second square frame piece is located outside the outer edge of the square frame base. Multiple triangular reinforcing pieces are arranged at intervals between the second square frame piece and the side surface of the square frame base.

10. The anti-slip device for the protective casing according to claim 9, characterized in that: The top surface of the square base has a first square frame piece, on which a hanging ring is provided, and a level is provided at the four corners of the first square frame piece.

Images