Tensioning assembly

Abstract

The utility model provides a tensioning assembly which is characterized by comprising a tensioning die (1), a tensioning head plate assembly (2) is arranged at one end of the tensioning die (1), a tensioning tail plate assembly (3) is arranged at the other end of the tensioning die (1), and a pile splicing device (4) is further arranged in the middle of the inner side of the tensioning die (1). The tensioning assembly only comprises the tensioning die, the tensioning head plate assembly, the tensioning tail plate assembly and the pile splicing device, compared with a tensioning assembly in the prior art, the number of components is effectively reduced, use, assembly and disassembly are convenient, the pile splicing device is arranged in the middle of the inner side of the tensioning die, so that the tensioning assembly can be suitable for being used when piles of different axial sizes are tensioned, and the tensioning efficiency is improved. A containing space is formed between the middle of the tensioning ring and the outer edge of the tensioning ring and used for containing the reinforcing steel bar sleeve, the reinforcing steel bar sleeve is effectively protected, and the tensioning effect and stability are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of prestressed concrete pile tensioning moulds, in particular to a tensioning component. Background Art

[0002] The prefabricated piles in the prior art need to be formed in a mold to improve the bearing capacity of the foundation. The prior art often uses the pre-tensioning method to form prestressed concrete pipe piles. The pre-tensioning method refers to the method of first tensioning the steel bars and then pouring the concrete during the production process of the pipe piles. When the concrete reaches the specified strength, the two ends of the steel bars are relaxed. This can improve the tensile strength of the concrete pipe piles when they are under load and reduce cracking.

[0003] However, the tensioning components used in this process still have the following defects and shortcomings during use:

[0004] 1) The tensioning die in the prior art has a complex structure, many parts, and is difficult to load, unload and use. For example, see the tensioning assembly disclosed in publication number CN210210859U;

[0005] 2) The tensioning molds with fixed specifications and models cannot be applied to the tensioning processes of various pile types, and the scope of application is narrow;

[0006] 3) The tensioning assembly in the prior art cannot effectively accommodate and protect the steel sleeve.

[0007] Therefore, there is an urgent need to provide a tensioning assembly to solve the defects and shortcomings in the above-mentioned prior art. Utility Model Content

[0008] In order to solve the above-mentioned defects and problems existing in the prior art, the utility model proposes a tensioning assembly.

[0009] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0010] A tensioning assembly comprises a tensioning die, a tensioning head plate assembly is arranged at one end of the tensioning die, a tensioning tail plate assembly is arranged at the other end of the tensioning die, and a pile connector is also arranged at the inner middle part of the tensioning die; it is characterized in that: the tensioning head plate assembly comprises a tensioning ring arranged at one end of the inner side of the tensioning die, the outer peripheral thread of the tensioning ring is connected with a tensioning nut, and a tensioning screw is passed through the inner thread of the tensioning ring.

[0011] As a further preferred embodiment of the present invention, the tensioning head plate assembly further comprises a tensioning end plate arranged at one end of the inner side of the tensioning die, and a tensioning ring is fixedly connected to the outer side of the tensioning end plate.

[0012] As a further preferred embodiment of the present invention, a screw hole is opened in the center of the tension ring, a rib-piercing hole is opened on the inner outer edge of the tension ring, and a plurality of rib-piercing holes are provided and arranged around the outer circumference of the screw hole.

[0013] As a further preferred embodiment of the present invention, the middle portion of the tension ring is arranged to protrude relative to the outer edge thereof.

[0014] As a further preferred embodiment of the present invention, an accommodating space is formed between the middle portion of the tension ring and the outer edge thereof.

[0015] As a further preferred embodiment of the present invention, after the tensioning nut is installed, one axial end thereof is in close contact with the end of the tensioning die.

[0016] As a further preferred embodiment of the utility model, the pile connector includes a first inner hoop and a second inner hoop, the first inner hoop and the second inner hoop are axially symmetrically arranged, and an outer hoop is further sleeved on the outer circumference of the first inner hoop and the second inner hoop.

[0017] As a further preferred embodiment of the utility model, the radial outer edges of the first inner hoop and the second inner hoop are respectively provided with a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion extend into the interior of the outer hoop and cooperate with its inner wall.

[0018] As a further preferred embodiment of the utility model, the first inner hoop and the second inner hoop are respectively provided with a first inner pile hole and a second inner pile hole, the outer hoop is provided with an external pile hole, and the first inner pile hole and the second inner pile hole extend along the axial direction of the tensioning mold, and the external pile hole extends along the radial direction of the tensioning mold.

[0019] As a further preferred embodiment of the present invention, a plurality of running wheels are evenly spaced along the axial direction on the outer wall of the tensioning die.

[0020] Compared with the prior art, the beneficial effects achieved by the utility model include:

[0021] 1) The utility model provides a tensioning assembly, which only includes a tensioning mold, a tensioning head plate assembly, a tensioning tail plate assembly and a pile connector. Compared with the tensioning assembly in the prior art, the tensioning assembly effectively reduces the number of components and is convenient to use and load and unload.

[0022] 2) The utility model provides a tensioning assembly, which is provided with a pile connector at the inner middle part of the tensioning die, so that the tensioning assembly can be used for tensioning piles of different axial sizes.

[0023] 3) The utility model provides a tensioning assembly, in which an accommodation space is formed between the middle part of the tensioning ring and the outer edge thereof for accommodating the steel sleeve and providing effective protection therefor, thereby further improving the tensioning effect and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural side view of the utility model.

[0025] Figure 2 This is an enlarged structural diagram of the tensioning head plate assembly position of the utility model.

[0026] Figure 3 This is a top view of the structure of the tensioning head plate assembly of the utility model.

[0027] Figure 4 This is an enlarged structural diagram of the position of the tensioning tail plate component of the utility model.

[0028] Figure 5 This is an enlarged structural diagram of the pile connector provided by the utility model. DETAILED DESCRIPTION

[0029] 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.

[0030] In the description of the present invention, it should be noted that the terms "upward", "downward", "inside", "outside", "forward", "backward", "one side", "the other side" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "configured with", "connected", "transmission", "drive", etc. should be understood in a broad sense. For example, "transmission" can be chain transmission, tooth transmission, or belt transmission; it can be mechanical transmission or electric transmission; it can be direct transmission, indirect transmission through an intermediate medium, or transmission between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] [First embodiment]

[0033] See also Figure 1-5 A tensioning assembly provided in the first embodiment of the utility model, such as Figure 1 As shown, it includes a tensioning mold 1, and a plurality of running wheels 11 are evenly spaced along the axial direction on the outer wall of the tensioning mold 1 to facilitate the overall transportation of the mold. A tensioning head plate assembly 2 is arranged at one end of the tensioning mold 1, and a tensioning tail plate assembly 3 is arranged at the other end of the tensioning mold 1. A pile connector 4 is also arranged in the middle of the inner side of the tensioning mold 1. The tensioning assembly provided in this embodiment only includes the tensioning mold, the tensioning head plate assembly, the tensioning tail plate assembly and the pile connector. Compared with the tensioning assembly in the prior art, it effectively reduces the components and is easy to use and load and unload.

[0034] like Figure 2-3 As shown, the tensioning head plate assembly 2 in this embodiment includes a tensioning ring 22 disposed at one end of the inner side of the tensioning die 1, and a tensioning nut 23 is connected to the outer periphery of the tensioning ring 22 through a thread, and a tensioning screw 24 is passed through the inner thread of the tensioning ring 22. When the tensioning screw 24 moves axially, the tensioning end plate 21 threadedly connected thereto is driven to move axially inside the tensioning die 1 through thread matching, thereby realizing the tensioning action. Preferably, a tensioning end plate 21 may also be disposed at one end of the inner side of the tensioning die 1, and a tensioning ring 22 is fixedly connected to the outer side of the tensioning end plate 21, and the axial movement stability of the tensioning ring 22 is further improved through the tensioning end plate 21.

[0035] A screw hole 221 is provided at the center of the tensioning ring 22 for inserting the tensioning screw 24, and a reinforcement hole 222 is provided at the inner outer edge of the tensioning ring 22 for inserting reinforcement. A plurality of reinforcement holes 222 can be provided according to the number of reinforcements and are arranged around the outer circumference of the screw hole 221.

[0036] As a preferred embodiment of the present invention, the middle portion of the tension ring 22 is protruded relative to the outer edge thereof, which, on the one hand, increases the axial covering area of ​​the tension screw 24 inside the tension ring 22 to further improve the protection effect of the tension screw 24, and on the other hand, is also conducive to forming an accommodating space 223, such as Figure 2 As shown, an accommodating space 223 is formed between the middle portion of the tensioning ring 22 and its outer edge, and the steel sleeve is accommodated in the accommodating space 223, thereby providing effective protection for the steel sleeve, so as to further improve the tensioning effect and stability.

[0037] As a preferred installation method of this embodiment, after the tensioning nut 23 is installed, one axial end thereof is in close contact with the end of the tensioning die 1, thereby facilitating the axial installation positioning and locking in place prompt of the tensioning nut 23.

[0038] like Figure 5As shown, the pile connector 4 in this embodiment includes a first inner hoop 41 and a second inner hoop 42, and the first inner hoop 41 and the second inner hoop 42 are axially symmetrically arranged. The ends of the two pile sections are respectively located inside the central through holes of the first inner hoop 41 and the second inner hoop 42, and the center alignment is achieved by the axial symmetry of the first inner hoop 41 and the second inner hoop 42. An outer hoop 43 is also sleeved on the outer periphery of the first inner hoop 41 and the second inner hoop 42, and the first inner hoop 41 and the second inner hoop 42 are axially locked by the outer hoop 43 to achieve axial pile connection action.

[0039] As a further preferred implementation of this embodiment, Figure 5 As shown, the radial outer edges of the first inner hoop 41 and the second inner hoop 42 are respectively provided with a first limiting portion 411 and a second limiting portion 421, and the first limiting portion 411 and the second limiting portion 421 extend into the interior of the outer hoop 43 and cooperate with its inner wall to further improve the accuracy and stability of pile connection.

[0040] In addition, a first inner pile hole 412 and a second inner pile hole 422 are respectively opened inside the first inner hoop 41 and the second inner hoop 42, and an external pile hole 431 is opened inside the outer hoop 43. The first inner pile hole 412 and the second inner pile hole 422 extend along the axial direction of the tensioning mold 1, and the external pile hole 431 extends along the radial direction of the tensioning mold 1, so that the first inner hoop 41 and the second inner hoop 42 are locked with the internal pile body from the axial direction through the axial fixing piece, and the outer hoop 43 is locked with the first inner hoop 41 and the second inner hoop 42 from the radial direction through the radial-axial fixing piece, so as to further improve the stability of the pile connection.

[0041] In specific operation, during tensioning, the tensioning screw 24 drives the tensioning ring 22 threadedly connected thereto to move axially synchronously, for example, toward Figure 2 In the middle right direction, the tension ring 22 drives the tension end plate 21 fixedly connected thereto to move synchronously toward Figure 2 The tensioning die 1 is tensioned to the preset position by axially moving in the right direction. The tensioning nut 23 is threadedly connected to the outer periphery of the tensioning ring 22 and tightened until the tensioning nut 23 is tightly attached to the end of the tensioning die 1, thereby locking the current tensioning position.

[0042] It is obvious 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 regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A tensioning assembly, comprising a tensioning die (1), a tensioning head plate assembly (2) being arranged at one end of the tensioning die (1), a tensioning tail plate assembly (3) being arranged at the other end of the tensioning die (1), and a pile connector (4) being arranged at the inner middle part of the tensioning die (1); characterized in that: The tensioning head plate assembly (2) comprises a tensioning ring (22) arranged at one end of the inner side of the tensioning die (1), the outer periphery of the tensioning ring (22) being threadedly connected to a tensioning nut (23), and the inner thread of the tensioning ring (22) being threadedly provided with a tensioning screw (24).

2. A tensioning assembly according to claim 1, characterized in that: The tensioning head plate assembly (2) further comprises a tensioning end plate (21) arranged at one end of the inner side of the tensioning die (1), and a tensioning ring (22) is fixedly connected to the outer side of the tensioning end plate (21).

3. A tensioning assembly according to claim 1, characterized in that: A screw hole (221) is provided at the center of the tension ring (22), and a rib-piercing hole (222) is provided at the outer edge of the tension ring (22). A plurality of rib-piercing holes (222) are provided and arranged around the outer circumference of the screw hole (221).

4. A tensioning assembly according to claim 1, characterized in that: The middle portion of the tensioning ring (22) is arranged to protrude relative to the outer edge thereof.

5. A tensioning assembly according to claim 1, characterized in that: An accommodating space (223) is formed between the middle portion of the tension ring (22) and the outer edge thereof.

6. A tensioning assembly according to claim 1, characterized in that: After the tensioning nut (23) is installed, one axial end thereof is in close contact with the end of the tensioning die (1).

7. The tensioning assembly according to claim 1, characterized in that: The pile connector (4) comprises a first inner hoop (41) and a second inner hoop (42), the first inner hoop (41) and the second inner hoop (42) being axially symmetrically arranged, and an outer hoop (43) is sleeved on the outer circumference of the first inner hoop (41) and the second inner hoop (42).

8. A tensioning assembly according to claim 7, characterized in that: A first limiting portion (411) and a second limiting portion (421) are respectively provided on radial outer edges of the first inner hoop (41) and the second inner hoop (42); the first limiting portion (411) and the second limiting portion (421) extend into the interior of the outer hoop (43) and cooperate with the inner wall thereof.

9. A tensioning assembly according to claim 7, characterized in that: A first internal pile hole (412) and a second internal pile hole (422) are respectively provided inside the first inner hoop (41) and the second inner hoop (42), and an external pile hole (431) is provided inside the outer hoop (43); the first internal pile hole (412) and the second internal pile hole (422) extend along the axial direction of the tensioning die (1), and the external pile hole (431) extends along the radial direction of the tensioning die (1).

10. The tensioning assembly according to claim 1, characterized in that: A plurality of running wheels (11) are evenly spaced and arranged axially on the outer wall of the tensioning die (1).

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