Control device for improving construction perpendicularity of prestressed concrete hollow square pile

Abstract

The utility model relates to a control device for improving the construction perpendicularity of a prestressed concrete hollow square pile, which comprises a pile feeder, a hydraulic cylinder and a hydraulic cylinder, the upper end of the built-in limiting angle steel is fixed at the end part of the pile feeder, and the lower end of the built-in limiting angle steel penetrates out of the end part of the pile feeder and extends downwards; the externally-tangent circular ring steel sleeve is externally tangent to the built-in limiting angle steel arranged at the four corners of the square and used for being tightly attached to the inner side circular face of the hollow square pile; and the rib plate is welded between the built-in limiting angle steel limb plate and the externally tangent circular ring steel sleeve. According to the device, the pile feeding perpendicularity of the prestressed concrete hollow square pile can be conveniently controlled, and the pile body is prevented from deviating or inclining in the pile feeding process.

Description

Technical Field

[0001] The utility model relates to the field of prestressed concrete hollow square pile construction, in particular to a control device for improving the verticality of prestressed concrete hollow square pile construction. Background Art

[0002] For example, Chinese Utility Model Publication No. CN 220225312 U discloses a device for ensuring the verticality of a prefabricated square pile. The device comprises: four limiting angle steels, each designed to fit the four corners of the pile; a horizontal connecting plate fixedly connected to two adjacent limiting angle steels; a diagonal brace plate intersecting and fixedly connected to the limiting angle steels; and a pile driver with a rectangular parallelepiped end, the four corners of which fit and are welded to the upper ends of the four limiting angle steels. The pile end lacks a pile collar, which is commonly found on prestressed concrete hollow square piles. This collar prevents the external limiting angle steels from being tightly attached to the pile body, preventing a close fit during driving and insufficient control of the pile's verticality. Furthermore, the collar can easily cause the angle steels to bend inward, leading to pile displacement. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a control device for improving the verticality of prestressed concrete hollow square pile construction, which is convenient for controlling the verticality of prestressed concrete hollow square pile delivery and preventing the pile body from deflecting or tilting during the delivery process.

[0004] In order to solve the above problems, a device for improving the verticality control of prestressed concrete hollow square pile construction is adopted, which includes:

[0005] a pile driver having a pile driver end;

[0006] Built-in limiting angle steel, which is arranged at the four corners of a square, with its upper end fixed to the end of the pile driver and its lower end passing through the end of the pile driver and extending downward;

[0007] The circumscribed circular steel sleeve is circumscribed to the built-in limiting angle steels arranged at the four corners of the square, and is used to fit closely to the inner circular surface of the hollow square pile;

[0008] The rib plate is welded between the built-in limiting angle steel limb plate and the circumscribed circular ring steel sleeve.

[0009] With such a structure, the built-in limiting angle steel can extend into the hollow circle of the prestressed concrete hollow square pile. Through the circumscribed circular steel sleeve, the prestressed concrete hollow square pile can be kept vertical during the pile delivery process, and the pile driver is squeezed by the static pile driver to deliver the pile to the designed elevation.

[0010] As a further improvement of the present invention, the following further features are also included:

[0011] Roadbed boxes, which are laid at intervals;

[0012] The limiting screws are installed on the two roadbed boxes at the four corners;

[0013] The square steel sleeve has oblong holes at its four corners for the limit screws to pass through;

[0014] Leveling nuts are threaded onto the limit screws and tightened on the upper and lower sides of the limit screws;

[0015] Universal level bubble, which is installed on the upper side of the square steel sleeve;

[0016] A guide rod that slides into a square steel sleeve;

[0017] An external limiting angle steel is fixed to the inner end of the guide rod, and its upper end extends to the end of the pile driver;

[0018] The limiting bolt is threaded into the square steel sleeve and abuts against the surface of the external limiting angle steel.

[0019] With this structure, the square steel sleeve is leveled on the roadbed box and tightened, and then the external limiting angle steel is tightened by the limiting bolt. The external limiting angle steel is close to the end of the pile driver, so that the end of the pile driver is guaranteed to be vertical when driving piles.

[0020] As a further improvement of the present invention, a limiting plate is provided on the limb of the external limiting angle steel, and the limiting plate is for the limiting bolt to slide through, and a circle of limiting flange is fixed to one end through which the limiting bolt passes.

[0021] With such a structure, when the limit bolt rotates, it can drive the external limit angle steel away from the end of the pile driver.

[0022] As a further improvement of the present invention, scissor braces are provided between the external limiting angle steels on the same side.

[0023] The scissors brace makes the external limit angle steel connection more stable.

[0024] As a further improvement of the present invention, the end portion of the pile driver is in a cube shape.

[0025] The cube shape is more suitable for prestressed concrete hollow square piles.

[0026] The utility model facilitates controlling the verticality of prestressed concrete hollow square piles when they are delivered, and prevents the pile bodies from deflecting or tilting during the delivery process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the structure of the embodiment.

[0028] Figure 2 Schematic diagram of the cross-section structure of the pile driver end portion of the embodiment.

[0029] Figure numerals: 1, pile driver; 101, pile driver end; 2, built-in limit angle steel; 3, circumscribed circular steel sleeve; 4, rib; 5, roadbed box; 6, limit screw; 7, square steel sleeve; 71, oblong hole; 8, leveling nut; 9, universal level bubble; 10, guide rod; 11, external limit angle steel; 12, limit bolt; 13, limit plate; 14, limit flange; 15, scissors support. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions 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 devices or components referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention; the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance; in addition, unless otherwise expressly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Example 1

[0033] like Figure 1-Figure 2 As shown, a device for improving the verticality control of prestressed concrete hollow square pile construction comprises:

[0034] A pile driver 1 having a pile driver end 101;

[0035] Built-in limiting angle steel 2, which is arranged at the four corners of a square, with its upper end fixed to the end 101 of the pile driver, and its lower end passing through the end 101 of the pile driver and extending downward;

[0036] The circumscribed circular steel sleeve 3 is circumscribed to the built-in limiting angle steels 2 arranged at the four corners of the square, and is used to fit closely to the inner circular surface of the hollow square pile;

[0037] The rib plate 4 is welded between the limb plate of the built-in limiting angle steel 2 and the circumscribed circular ring steel sleeve 3.

[0038] With such a structure, the built-in limiting angle steel 2 can extend into the hollow circle of the prestressed concrete hollow square pile. Through the circumscribed circular steel sleeve 3, the prestressed concrete hollow square pile can be kept vertical during the pile driving process, and the pile driver 1 is squeezed by the static pile driver to deliver the pile to the designed elevation.

[0039] In this embodiment, it also includes:

[0040] Roadbed boxes 5, which are laid at intervals;

[0041] The limiting screws 6 are installed on the two roadbed boxes 5 at the four corners;

[0042] The square steel sleeve 7 has oblong holes 71 at its four corners for the limiting screws 6 to pass through;

[0043] Leveling nut 8, which is threadedly connected to the limit screw 6 and tightened on the upper and lower sides of the limit screw 6;

[0044] Universal level bubble 9, which is installed on the upper side of the square steel sleeve 7;

[0045] A guide rod 10, which slides into the square steel sleeve 7;

[0046] An external limiting angle steel 11 is fixed to the inner end of the guide rod 10, and its upper end extends to the end 101 of the pile driver;

[0047] The limiting bolt 12 is threadedly inserted into the square steel sleeve 7 and abuts against the surface of the external limiting angle steel 11.

[0048] With this structure, the square steel sleeve 7 is leveled on the roadbed box and tightened, and then the external limiting angle steel 11 is pressed against by the limiting bolt 12. The external limiting angle steel 11 is close to the end 101 of the pile driver, so that the end 101 of the pile driver is guaranteed to be vertical when driving piles.

[0049] In this embodiment, a limiting plate 13 is provided on the limb of the external limiting angle steel 11 , and the limiting bolt 12 is slidably passed through the limiting plate 13 , and a limiting flange 14 is fixed to one end through which the limiting bolt 12 passes.

[0050] With such a structure, when the limiting bolt 12 rotates, it can drive the external limiting angle steel 11 away from the end 101 of the pile driver.

[0051] In this embodiment, scissor struts 15 are provided between the external limiting angle steels 11 on the same side.

[0052] The scissors support 15 makes the connection of the external limiting angle steel 11 more stable.

[0053] In this embodiment, the pile driver end 101 is in a cube shape.

[0054] The cube shape is more suitable for prestressed concrete hollow square piles.

[0055] The utility model facilitates controlling the verticality of prestressed concrete hollow square piles when they are delivered, and prevents the pile bodies from deflecting or tilting during the delivery process.

[0056] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For those skilled in the art of the present invention, it is possible to make several equivalent substitutions or obvious modifications without departing from the concept of the present invention, and the performance or use are the same, and all of them should be considered to fall within the scope of protection of the present invention.

Claims

1. A device for improving the verticality control of prestressed concrete hollow square pile construction, characterized in that include: A pile driver (1) having a pile driver end (101); Built-in limiting angle steels (2) are arranged at the four corners of a square, with the upper end fixed to the end (101) of the pile driver, and the lower end passing through the end (101) of the pile driver and extending downward; An circumscribed circular steel sleeve (3) circumscribed to the built-in limiting angle steels (2) arranged at the four corners of the square, and used to closely adhere to the inner circular surface of the hollow square pile; The rib plate (4) is welded between the limb plate of the built-in limiting angle steel (2) and the circumscribed circular ring steel sleeve (3).

2. The device for improving the verticality control of prestressed concrete hollow square pile construction according to claim 1 is characterized in that Also includes: Roadbed boxes (5), which are laid at intervals; Limiting screws (6) are installed on the two roadbed boxes (5) at four corners; A square steel sleeve (7) with oblong holes (71) at its four corners for the limiting screw (6) to pass through; A leveling nut (8) is threadedly connected to the limiting screw (6) and is tightened on the upper and lower sides of the limiting screw (6); A universal level bubble (9) mounted on the upper side of the square steel sleeve (7); A guide rod (10) which slides into the square steel sleeve (7); An external limiting angle steel (11) is fixed to the inner end of the guide rod (10), and its upper end is extended to the end of the pile driver (101); The limiting bolt (12) is threadedly inserted into the square steel sleeve (7) and abuts against the surface of the external limiting angle steel (11).

3. The device for improving the verticality control of prestressed concrete hollow square pile construction according to claim 2, characterized in that Said: A limiting plate (13) is provided on the limb of the external limiting angle steel (11), and the limiting plate (13) is for the limiting bolt (12) to slide through, and a circle of limiting flange (14) is fixed on one end through which the limiting bolt (12) passes.

4. The device for improving the verticality control of prestressed concrete hollow square pile construction according to claim 3 is characterized in that A scissor brace (15) is provided between the external limiting angle steels (11) on the same side.

5. The device for improving the verticality control of prestressed concrete hollow square pile construction according to claim 1 is characterized in that The pile driver end (101) is in a cube shape.

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