Modular split tensioning device and apparatus

Abstract

The utility model discloses a modular split type tensioning device and equipment, including first tensioning part, driving part, second tensioning part and anchorage component part. The utility model breaks through the traditional equipment single tensioning limit, realizes secondary tension adjustment of not demolishing anchoring system, reduces equipment handling and installation difficulty through modular split design.

Description

Technical Field

[0001] This utility model relates to the technical field of prestressed construction equipment in civil engineering, specifically a detachable, lightweight, modular, and split-type tensioning device and equipment suitable for secondary tensioning of anchor bolts and anchor cables. Background Technology

[0002] In civil engineering and bridge construction, prestressed anchoring technology is widely used for tension control of cables and anchor bolts. Traditional prestressed tensioning equipment generally uses an integral through-hole jack structure, and existing anchors typically only support single tensioning, making it impossible to adjust the tension of already anchored cables a secondary matter. If it is necessary to correct the tension or compensate for prestress loss, the original anchoring system must be dismantled, resulting in low construction efficiency and soaring costs. Utility Model Content

[0003] The purpose of this utility model is to provide a modular split tensioning device and equipment suitable for secondary tensioning of anchor bolts and anchor cables, breaking through the limitation of single tensioning of traditional equipment, realizing secondary tension adjustment without dismantling the anchoring system, and reducing the difficulty of equipment handling and installation through modular split design.

[0004] A modular, split-type tensioning device, comprising:

[0005] The first tensioning component has at least one first mounting window in its middle part, the at least one first mounting window is used for the cable to pass through, and one side of the first mounting window can abut against the clamp of the initial anchor of the cable.

[0006] At least two driving members are disposed on the other side of the first tensioning member and are respectively located on both sides of the at least one first mounting window;

[0007] The second tensioning component has a second mounting window in its middle for cable to pass through. The second tensioning component also has a accommodating travel groove adapted to the at least two driving members. The accommodating travel groove is fitted onto the at least two driving members, with the output ends of the at least two driving members facing into the accommodating travel groove. The inner wall of the accommodating travel groove is slidably connected to the outer periphery of the at least two driving members. The at least two driving members can drive the second tensioning component to move away from the first tensioning component.

[0008] An anchor component is used to connect with the cable extending through the second installation window, and one end of the anchor component can abut against the outer wall of the second installation window. When the second tensioning component is displaced, it drives the anchor component and the cable to move away from the first tensioning component, so that the cable generates axial displacement relative to the initial anchor.

[0009] Furthermore, as a more preferred embodiment of this utility model, the first tensioning component includes:

[0010] A first support plate has a first through groove in its middle part, which is used for the cable to pass through.

[0011] An anchor clamp limiting member, wherein at least one first installation window is provided on the anchor clamp limiting member, the anchor clamp limiting member is detachably connected to one side of the first support plate, and the anchor clamp limiting member covers the first through groove, and the at least one first installation window corresponds to the position of the cable passing through the first through groove.

[0012] Furthermore, as a more preferred embodiment of this utility model, the second tensioning component includes:

[0013] The second support plate has a second through groove in the middle, which communicates with the second mounting window for cable to pass through.

[0014] A pressure-bearing plate is provided with a second installation window, and the pressure-bearing plate is detachably connected to the second support plate.

[0015] Furthermore, as a more preferred embodiment of the present invention, the second tensioning component further includes: a stroke adjusting member, wherein the stroke adjusting member has an external threaded portion on its outer periphery;

[0016] The end of the accommodating stroke groove is provided with a threaded through hole adapted to the external threaded portion; the stroke adjustment member is connected to the threaded through hole, and the stroke adjustment member can extend into the accommodating stroke groove to adjust the tensioning stroke length.

[0017] Furthermore, as a more preferred embodiment of the present invention, the cross-section of the first support plate is U-shaped, and the opening of the U-shape is oriented towards the initial anchor.

[0018] Furthermore, as a more preferred embodiment of the present invention, the cross-section of the second support plate is U-shaped, and the opening of the U-shape is oriented towards the anchor component.

[0019] Furthermore, as a more preferred embodiment of the present invention, the first tensioning component further includes a gripping member, and gripping members are respectively provided on both sides of the first support plate. The gripping members are used to be gripped to pick up the entire first support plate.

[0020] Furthermore, as a more preferred embodiment of this utility model, the at least two driving components are hydraulic cylinders, and the at least two driving components are connected by a three-way pipe, which is used to connect to a hydraulic output device; the first support plate is symmetrically provided with at least two threaded holes relative to the first through slot, and the at least two driving components are fixed to the threaded holes by screws.

[0021] Furthermore, as a more preferred embodiment of this utility model, the anchor component includes:

[0022] An anchor body, wherein the anchor body is provided with at least one limiting hole for cable to pass through;

[0023] At least one clamping piece is disposed at the at least one limiting hole for clamping the cable and restricting its unidirectional retraction.

[0024] Based on the same inventive concept, this utility model also provides a device, including the modular split tensioning device described above. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0026] Figure 1 This is a schematic diagram of the exploded structure of the modular split tensioning device in this embodiment.

[0027] Figure 2 This is a three-dimensional structural diagram of the modular split tensioning device in this embodiment.

[0028] Figure 3 This is a half-section diagram of the modular split tensioning device in this embodiment.

[0029] Figure 4 This is a schematic diagram of the modular split tensioning device for tensioning a single anchor rod in this embodiment.

[0030] Figure 5 This is a schematic diagram of the modular split tensioning device for tensioning threaded anchor rods in this embodiment.

[0031] Figure label:

[0032] 1-First tensioning component, 2-Driver, 3-Second tensioning component, 4-Anchor component, 11-First mounting window, 12-First support plate, 13-Anchor clamp limiting component, 14-Holding component, 21-Tee pipe, 31-Second mounting window, 32-Travel accommodating groove, 33-Second support plate, 34-Pressure plate, 35-Travel adjusting component, 41-Anchor body, 42-Clamping plate, 121-First through groove, 200-Cable, 300-Initial anchor, 331-Second through groove, 400-Anchor rod, a-External thread, b-Threaded through hole, c-Hydraulic cylinder, d-Nut. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly set on the other component; when a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0035] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0037] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0038] Example

[0039] This embodiment aims to address the common problem in existing prestressed tensioning equipment that uses an integral through-hole jack structure, and where existing anchors typically only support single tensioning, making secondary tension adjustment of the already anchored cable 200 impossible. If correction of tension or compensation for prestress loss is required, the original anchoring system must be dismantled, leading to low construction efficiency and soaring costs. Therefore, referring to... Figure 1-5 As shown, this embodiment provides a detachable, lightweight, modular, split-type tensioning device and equipment suitable for secondary tensioning of anchor bolts and anchor cables. It breaks through the limitation of single tensioning of traditional equipment and realizes secondary tension adjustment without dismantling the anchoring system. Through modular split design, the difficulty of equipment handling and installation is reduced.

[0040] Reference Figure 1-3 As shown, a modular split-type tensioning device includes a first tensioning component 1, a driving component 2, a second tensioning component 3, and an anchor component 4.

[0041] Reference Figure 1 As shown, the first tensioning component 1 has at least one first mounting window 11 in its middle, through which the cable 200 passes, and one side of the first mounting window 11 can abut against the clamp of the initial anchor 300 of the cable 200. It is understood that, referring to... Figure 2 and 4 As shown, at least one first mounting window 11 can be capable of allowing a single cable 200, anchor bolt 400, or multiple cables 200 to pass through, and its port edge can abut against the clamp of the initial anchor 300 to limit its movement during tensioning, causing the initial anchor 300 to fail to secure itself. For example, the first mounting window 11 is a circular hole, with 10 holes provided, corresponding to 10 steel strand anchor cables.

[0042] Reference Figure 1 As shown, the driving member 2 is disposed on the other side of the first tensioning member 1, and is located on both sides of at least one first mounting window 11. It can be understood that the driving member 2 is symmetrically arranged with respect to the axis of the first mounting window 11, the purpose of which is to ensure that the two sides are subjected to approximately equal forces during tensioning.

[0043] Reference Figure 1As shown, the second tensioning component 3 has a second mounting window 31 in the middle, through which the cable 200 passes; the second tensioning component 3 has a receiving stroke groove 32 adapted to the driving component 2, the receiving stroke groove 32 is sleeved on the driving component 2, and the output end of the driving component 2 faces into the receiving stroke groove 32. The inner wall of the receiving stroke groove 32 is slidably connected to the outer periphery of the driving component 2, and the driving component 2 can drive the second tensioning component 3 to move away from the first tensioning component 1; for example, the receiving stroke groove 32 can be a groove structure formed by a sleeve, with a smooth inner wall, which facilitates its sliding on the driving component 2.

[0044] Reference Figure 1 As shown, the anchor component 4 is used to connect with the cable 200 that passes through the second installation window 31, and one end of the anchor component 4 can abut against the outer wall of the second installation window 31. When the second tensioning component 3 is displaced, it drives the anchor component 4 and the cable 200 to move away from the first tensioning component 1, so that the cable 200 generates axial displacement relative to the initial anchor 300.

[0045] Reference Figure 1 and 3 As shown, in some embodiments, the first tensioning component 1 includes a first support plate 12 and an anchor clamp limiting member 13. A first through groove 121 is provided in the middle of the first support plate 12 for the cable 200 to pass through. The anchor clamp limiting member 13 has at least one first mounting window 11. The anchor clamp limiting member 13 is detachably connected to one side of the first support plate 12, and covers the first through groove 121. At least one first mounting window 11 corresponds to the position of the cable 200 passing through the first through groove 121. It is understood that the anchor clamp limiting member 13 is detachably connected to the first support plate 12, allowing for quick assembly and disassembly to adapt to different anchors on the same support plate. For example, the anchor clamp limiting member 13 is rectangular, with threaded holes at its four corners, and is a detachable independent component connected to the first support plate 12 by bolts. In some embodiments, the anchor clamp limiting member 13 is provided with a positioning groove on its back, which is positioned and inserted into the boss of the first support plate, facilitating installation and limiting horizontal displacement.

[0046] Reference Figure 1 and 3 As shown, in some embodiments, the second tensioning member 3 includes a second support plate 33 and a pressure-bearing plate 34.

[0047] Reference Figure 1 and 3As shown, the second support plate 33 has a second through groove 331 in the middle, which communicates with the second mounting window 31 for the cable 200 to pass through. The pressure plate 34 has a second mounting window 31, and the pressure plate 34 is detachably connected to the second support plate 33. For example, the pressure plate 34 is rectangular, with threaded holes at the four corners. The outer periphery of the second through groove 331 has corresponding threaded holes. The pressure plate 34 is bolted to the second support plate 33, making it easier to replace the pressure plate 34 with the appropriate anchor.

[0048] Reference Figure 1-3 As shown, in some embodiments, the second tensioning component 3 further includes a stroke adjustment member 35, the outer periphery of which is provided with an external thread portion a; the end of the accommodating stroke groove 32 is provided with a threaded through hole b that is adapted to the external thread portion a; the stroke adjustment member 35 is connected to the threaded through hole b, and the stroke adjustment member 35 can extend into the accommodating stroke groove 32 to adjust the tensioning stroke length.

[0049] Reference Figure 1-3 As shown, in some embodiments, the first support plate 12 has a U-shaped cross-section, with the opening of the U-shape facing the initial anchor 300. The second support plate 33 has a U-shaped cross-section, with the opening of the U-shape facing the anchor component 4. It is understood that the U-shape provides overall tensile rigidity and higher load stability.

[0050] Reference Figure 1 and 2 As shown, in some embodiments, the first tensioning component 1 further includes a gripper 14, with grippers 14 respectively provided on both sides of the first support plate 12. The grippers 14 are used to be gripped to lift the entire first support plate 12. For example, the gripper 14 is a U-shaped rod, with both ends of the U-shaped opening fixed to the first support plate 12 by welding.

[0051] Reference Figure 1 and 2 As shown, in some embodiments, the driving component 2 is a hydraulic cylinder c, and the driving component 2 is connected through a three-way pipe 21, which is used to connect to a hydraulic output device; the first support plate 12 has at least two threaded holes symmetrically arranged relative to the first through groove 121, and the driving component 2 is fixed to the threaded holes by a screw.

[0052] Reference Figure 1 As shown, in some embodiments, the anchor component 4 includes an anchor body 41 and at least one clip 42.

[0053] The anchor body 41 is provided with at least one limiting hole for the cable 200 to pass through; at least one clamping piece 42 is provided in at least one limiting hole for clamping the cable 200 and restricting its unidirectional retraction.

[0054] Reference Figure 5 As shown, it should be added that in some embodiments, when the cable uses a threaded anchor bolt, the anchor component 4 can be directly replaced with a nut d that is compatible with the threaded anchor bolt.

[0055] Reference Figure 1-4 As shown, the tensioning step in this embodiment includes:

[0056] In the initial state, the initial anchor 300 is already threaded with cable 200, and cable 200 has been pre-tensioned, with the end of cable 200 protruding from the initial anchor 300 by a certain length. Two hydraulic cylinders c are symmetrically inserted into the threaded holes of the first support plate. The U-shaped opening of the first support plate of the first tensioning component 1 is aligned with the initial anchor 300. Replaceable clamp limiting components are fixed with bolts, ensuring that the first mounting window 11 is precisely aligned with the clamps of the initial anchor 300 and the cable 200, and passes through them. A hydraulic output device, such as a hydraulic pump station, is connected in parallel via a T-connector.

[0057] The second tensioning component 3's accommodating stroke groove 32 is fitted into the piston rod of the hydraulic cylinder c, and the pressure plate is installed, ensuring that the pressure plate is coaxial with the second mounting window 31. Its modular, lightweight design, for example, results in the first tensioning component 1 weighing 10kg, the second tensioning component 3 weighing 8kg, and the hydraulic cylinder c weighing 2kg x 2, for a total weight of 22kg, while traditional equipment weighs ≥30kg, thus improving the efficiency of steep slope handling.

[0058] An anchor component 4 is installed at the end of the cable 200, with its clamps locking the cable 200, and the end face of the anchor body 41 abutting against the outer wall of the pressure plate.

[0059] Start the hydraulic pump station, and the piston rod pushes the second tensioning component 3 away from the first tensioning component 1, causing the anchor component 4 and cable 200 to move synchronously.

[0060] Stroke control: Screw the adjusting rod into the end of the stroke groove 32 to limit the maximum displacement. For example, after one tensioning, retract the piston rod to drive the anchor component 4 toward the first tensioning component 1, that is, to displace the anchor component 4 toward the first tensioning component 1. Then, start the hydraulic pump station, and the piston rod pushes the second tensioning component 3 away from the first tensioning component 1 to achieve re-tensioning; or, after screwing the stroke adjusting member 35 toward the first tensioning component 1 a certain length, start the hydraulic pump station, and the piston rod pushes the second tensioning component 3 away from the first tensioning component 1 to achieve re-tensioning.

[0061] This embodiment also provides a device, including the above-described modular split tensioning device.

[0062] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A modular, split-type tensioning device, characterized in that, include: The first tensioning component has at least one first mounting window in its middle part, the at least one first mounting window is used for the cable to pass through, and one side of the first mounting window can abut against the clamp of the initial anchor of the cable. At least two driving members are disposed on the other side of the first tensioning member and are respectively located on both sides of the at least one first mounting window; The second tensioning component has a second mounting window in its middle for cable to pass through. The second tensioning component also has a accommodating travel groove adapted to the at least two driving members. The accommodating travel groove is fitted onto the at least two driving members, with the output ends of the at least two driving members facing into the accommodating travel groove. The inner wall of the accommodating travel groove is slidably connected to the outer periphery of the at least two driving members. The at least two driving members can drive the second tensioning component to move away from the first tensioning component. An anchor component is used to connect with the cable extending through the second installation window, and one end of the anchor component can abut against the outer wall of the second installation window. When the second tensioning component is displaced, it drives the anchor component and the cable to move away from the first tensioning component, so that the cable generates axial displacement relative to the initial anchor.

2. The modular split-type tensioning device according to claim 1, characterized in that, The first tensioning component includes: A first support plate has a first through groove in its middle part, which is used for the cable to pass through. An anchor clamp limiting member, wherein at least one first installation window is provided on the anchor clamp limiting member, the anchor clamp limiting member is detachably connected to one side of the first support plate, and the anchor clamp limiting member covers the first through groove, and the at least one first installation window corresponds to the position of the cable passing through the first through groove.

3. The modular split-type tensioning device according to claim 1, characterized in that, The second tensioning component includes: The second support plate has a second through groove in the middle, which communicates with the second mounting window for cable to pass through. A pressure-bearing plate is provided with a second installation window, and the pressure-bearing plate is detachably connected to the second support plate.

4. The modular split-type tensioning device according to claim 3, characterized in that, The second tensioning component further includes: a stroke adjusting member, wherein the stroke adjusting member has an external thread on its outer periphery; The end of the accommodating stroke groove is provided with a threaded through hole adapted to the external threaded portion; the stroke adjustment member is connected to the threaded through hole, and the stroke adjustment member can extend into the accommodating stroke groove to adjust the tensioning stroke length.

5. The modular split-type tensioning device according to claim 2, characterized in that, The first support plate has a U-shaped cross-section, with the opening of the U-shape facing the initial anchor.

6. The modular split-type tensioning device according to claim 3, characterized in that, The second support plate has a U-shaped cross-section, and the opening of the U-shape is oriented towards the anchor component.

7. The modular split-type tensioning device according to claim 2, characterized in that, The first tensioning component also includes a gripping member, with gripping members respectively provided on both sides of the first support plate. The gripping members are used to be gripped to pick up the entire first support plate.

8. The modular split-type tensioning device according to claim 2, characterized in that, The at least two driving components are hydraulic cylinders, and the at least two driving components are connected by a three-way pipe, which is used to connect to a hydraulic output device; the first support plate has at least two threaded holes symmetrically arranged relative to the first through slot, and the at least two driving components are fixed to the threaded holes by screws.

9. The modular split-type tensioning device according to claim 1, characterized in that, The anchor component includes: An anchor body, wherein the anchor body is provided with at least one limiting hole for cable to pass through; At least one clamping piece is disposed at the at least one limiting hole for clamping the cable and restricting its unidirectional retraction.

10. A device, characterized in that, Includes the modular split-type tensioning device as described in any one of claims 1-9.

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