A prestressed anchorage static load testing device

Abstract

The utility model discloses a prestressed anchorage device static load testing arrangement, including work table, the upper end surface one side of work table is provided with prestressed pressure assembly, the upper end surface of work table is provided with static load platform and protection subassembly, the static load platform is located inside protection subassembly, the protection subassembly includes guard and auxiliary buffer, the guard is connected with work table, the auxiliary buffer is set up on the guard, be provided with the protection frame on the guard, the cross section of protection frame is nu character shape, the opening of protection frame is provided with the protection door that rotates, the utility model discloses the setting avoids the anchorage device when carrying out prestressed pressure and makes partial pressure -resistant pressure too big and leads to the safety hidden danger problem of the anchorage device that is pressed from the pressure place of prestressed pressure assembly, in addition, the protection subassembly can also buffer the anchorage device that jumps out, reduces the damage rate of protection subassembly.

Description

Technical Field

[0001] This utility model belongs to the field of static load testing technology for anchorages, and particularly relates to a static load testing device for prestressed anchorages. Background Technology

[0002] A static load testing device for prestressed anchors is an instrument used to test the load-bearing capacity of prestressed anchors. It primarily simulates the stress conditions of the anchors under actual use by applying static loads to verify whether the anchor design meets the predetermined requirements. The main purpose of this testing device is to ensure that the anchors can withstand the predetermined prestress during construction and maintain stability during long-term use.

[0003] Currently, during prestressed static load tests, there is a problem with the anchorage experiencing uneven local stress. As the force applied to the anchorage gradually increases, the anchorage may pop out of the device. Because the anchorage is subjected to high pressure, the impact force of the popped-out anchorage is also large, which can easily pose a safety hazard of injury to workers near the device.

[0004] Therefore, we propose a static load testing device for prestressed anchors. Utility Model Content

[0005] To address the aforementioned problems, the purpose of this invention is to provide a static load testing device for prestressed anchorages.

[0006] To achieve the above objectives, this utility model proposes a static load testing device for prestressed anchors, including a workbench. A prestressing pressure component is provided on one side of the upper end face of the workbench. A static load platform and a protective component are provided on the upper end face of the workbench. The static load platform is located inside the protective component. The protective component includes a protective element and an auxiliary buffer element. The protective element is connected to the workbench, and the auxiliary buffer element is disposed on the protective element.

[0007] Preferably, the protective component is provided with a protective frame, the protective frame has a U-shaped cross-section, a protective door is rotatably provided at the opening of the protective frame, a locking plate is provided at one end of the protective door, a lock slot is provided on the locking plate, and a receiving groove is provided in one side wall of the protective frame.

[0008] Preferably, a plurality of reset springs are provided inside the receiving groove, guide grooves are provided at both ends of the receiving groove, a push plate is provided inside the receiving groove, the cross-section of the push plate is U-shaped, both ends of the push plate extend through the protective frame to the outside of the protective frame, and the bent ends of the push plate are located inside the two guide grooves inside the receiving groove.

[0009] Preferably, the push plate is provided with a locking block, the end of the locking block away from the push plate extends through the protective frame to the inside of the lock opening on the locking plate, and the corner of the locking block and the wall opposite to the protective door is chamfered.

[0010] Preferably, the auxiliary buffer includes a buffer plate disposed inside the protective frame and multiple sets of connecting blocks disposed on the protective door. Each set of connecting blocks has two blocks, and a sliding rod is disposed between the two connecting blocks. Two moving blocks are slidably disposed on the sliding rod. The two moving blocks are symmetrical about the sliding rod. A helical spring is disposed on each moving block, and the end of the helical spring away from the moving block is connected to a connecting block on one side of the moving block.

[0011] Preferably, a connecting arm is rotatably provided on the movable block, and the end of the connecting arm away from the movable block is rotatably connected to the buffer plate. A reinforcing steel plate is provided on one side of the buffer plate, and multiple hanging plates are provided on the wall opposite to the buffer plate on the side of the reinforcing steel plate. Multiple hanging grooves are opened on the upper surface of the buffer plate, and the hanging plates on the reinforcing steel plate are hung in the hanging grooves on the buffer plate.

[0012] Preferably, the prestressing assembly includes a support plate disposed on one side of the upper surface of the workbench. The support plate has an L-shaped cross-section. A hydraulic cylinder is disposed on the upper surface of the support plate. The output end of the hydraulic cylinder passes through the support plate, and a prestressing block is disposed at one end passing through the support plate.

[0013] The static load testing device for prestressed anchors proposed in this utility model can bring the following beneficial effects: By setting up protective components, the safety hazard of anchorages jumping out of the pressure point of the prestressing component can be avoided due to uneven pressure during prestressing, which may cause excessive local pressure. In addition, the protective components can also buffer the jumping anchorages and reduce the damage rate of the protective components. Attached Figure Description

[0014] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0015] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a first-person perspective view of the protective component of this utility model. Figure 3 This is a second perspective view of the protective component of this utility model. Figure 4 This is a partial sectional view of the protective frame of this utility model; Figure 5 For the present utility model Figure 4 Enlarged view of point A in the middle; Figure 6 This is a first-person exploded view of the auxiliary buffer component of this utility model; Figure 7 This is a second-view exploded view of the auxiliary buffer component of this utility model.

[0016] In the picture: 1. Workbench; 21. Support plate; 22. Hydraulic cylinder; 23. Prestressing block; 3. Static load platform; 4. Protective components; 41. Protective parts; 411. Protective frame; 412. Protective door; 413. Locking plate; 414. Receiving groove; 415. Return spring; 416. Guide groove; 417. Push plate; 418. Locking block; 42. Auxiliary buffer; 421. Buffer plate; 422. Connecting block; 423. Slide rod; 424. Moving block; 425. Helical spring; 426. Connecting arm; 427. Reinforced steel plate; 428. Hanging groove; 429. Hanging plate. Detailed Implementation

[0017] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 this utility model.

[0019] 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 utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0022] like Figures 1 to 7 As shown in the figure, an embodiment of the present invention provides a static load testing device for prestressed anchorages, including a workbench 1. A prestressing pressure component is provided on one side of the upper end face of the workbench 1. A static load platform 3 and a protective component 4 are provided on the upper end face of the workbench 1. The static load platform 3 is located inside the protective component 4. The protective component 4 includes a protective member 41 and an auxiliary buffer member 42. The protective member 41 is connected to the workbench 1, and the auxiliary buffer member 42 is disposed on the protective member 41.

[0023] The protective component 4 is designed to prevent the anchorage from popping out of the prestressing component due to uneven pressure during prestressing, which could cause excessive local pressure. In addition, the protective component 4 can also buffer the popped-out anchorage, reducing the damage rate of the protective component 4.

[0024] The protective component 41 is provided with a protective frame 411, the protective frame 411 having a U-shaped cross-section. A protective door 412 is rotatably installed at the opening of the protective frame 411, and a locking plate 413 is provided at one end of the protective door 412. The locking plate 413 has a locking slot. A receiving groove 414 is provided in one side wall of the protective frame 411. Multiple return springs 415 are provided inside the receiving groove 414. Guide grooves 416 are provided at both ends of the receiving groove 414. A push plate 417 is provided inside the receiving groove 414, the push plate 417 having a U-shaped cross-section. Both ends of the push plate 417 extend through the protective frame 411 to the outside of the protective frame 411. The bends at both ends of the push plate 417 are located inside the two guide grooves 416 inside the receiving groove 414. A locking block 418 is provided on the push plate 417. One end of the locking block 418 away from the push plate 417 extends through the protective frame 411 to the inside of the lock opening on the lock plate 413. A chamfer is provided at the corner of the wall opposite to the protective door 412.

[0025] In this embodiment, firstly, the two ends of the push plate 417 extending outside the protective frame 411 are pressed. The push plate 417 moves along the guide groove 416 under force. The movement of the push plate 417 compresses the return spring 415 inside the receiving groove 414. During the movement, the push plate 417 drives the locking block 418 to move. When the locking block 418 is misaligned with the locking jaw on the locking plate 413, the protective door 412 is rotated. Then, the anchor is placed on the upper end face of the static load platform 3. The protective door 412 is rotated again. When the locking plate 413 on the protective door 412 abuts against the locking block 418 on the protective frame 411, the locking block 418 is forced to retract into the receiving groove 414. During the retraction process, the locking block 418 will compress the receiving groove 414 through the push plate 417. The return spring 415 inside the groove 414 is compressed. When the locking block 418 corresponds to the locking hole on the locking plate 413, the locking block 418 is inserted into the locking hole on the locking plate 413, thereby fixing the position of the protective door 412. At this time, the anchor is subjected to prestressing test by the prestressing pressure component. When the anchor is subjected to prestressing pressure, if the pressure is uneven and the anchor is pushed out from the pressure point of the prestressing pressure component, the anchor will directly hit the protective frame 411 and the protective door 412, thereby preventing the pushed-out anchor from causing injury to the staff. After the anchor test is completed, the protective door 412 is opened and the tested anchor is taken out in the above manner. Finally, the above operation is repeated.

[0026] The locking plate 413, push plate 417, locking block 418, and return spring 415 make the locking and unlocking process between the protective door 412 and the protective frame 411 simple and convenient.

[0027] The auxiliary buffer 42 includes a buffer plate 421 disposed inside the protective frame 411 and multiple sets of connecting blocks 422 disposed on the protective door 412. Each set of connecting blocks 422 has two blocks, and a sliding rod 423 is disposed between the two connecting blocks 422. Two moving blocks 424 are slidably disposed on the sliding rod 423. The two moving blocks 424 are symmetrical about the sliding rod 423. A helical spring 425 is disposed on the moving block 424. The end of the helical spring 425 away from the moving block 424 is connected to the connecting block 422 on one side of the moving block 424. A connecting arm 426 is rotatably mounted on the movable block 424. The end of the connecting arm 426 away from the movable block 424 is rotatably connected to the buffer plate 421. A reinforcing steel plate 427 is provided on one side of the buffer plate 421. Multiple hanging plates 429 are provided on the wall opposite to the buffer plate 421 on the side of the reinforcing steel plate 427. Multiple hanging grooves 428 are opened on the upper end face of the buffer plate 421. The hanging plates 429 on the reinforcing steel plate 427 are hung in the hanging grooves 428 on the buffer plate 421.

[0028] In this embodiment, when the anchor hits the protective door 412, the anchor will directly impact the reinforced steel plate 427. The reinforced steel plate 427 is forced to compress the buffer plate 421. The buffer plate 421 is forced to push the moving block 424 along the slide rod 423 through the connecting arm 426. The sliding of the moving block 424 compresses the helical spring 425 between the moving block 424 and the connecting block 422. The helical spring 425 is forced to contract, thereby relieving the force of the impact on the protective door 412 and reducing the risk of the protective door 412 being knocked open. If it is necessary to replace the reinforced steel plate 427 on the buffer plate 421, the reinforced steel plate 427 is pulled upward to separate the hanging plate 429 on the reinforced steel plate 427 from the hanging groove 428 on the buffer plate 421. Then the reinforced steel plate 427 is removed from the buffer plate 421, and the new reinforced steel plate 427 is hung on the buffer plate 421 through the hanging plate 429.

[0029] The auxiliary buffer 42 is used to mitigate the force of impacting the protective door 412, thereby reducing the risk of the protective door 412 being knocked open. The reinforced steel plate 427 protects the buffer plate 421 and prevents the buffer plate 421 from being damaged by the ejected anchor. The reinforced steel plate 427 is easy to replace through the setting of the hanging plate 429 and the hanging groove 428.

[0030] The prestressing assembly includes a support plate 21 disposed on one side of the upper surface of the workbench 1. The cross-section of the support plate 21 is L-shaped. A hydraulic cylinder 22 is disposed on the upper surface of the support plate 21. The output end of the hydraulic cylinder 22 passes through the support plate 21, and a prestressing block 23 is disposed at one end of the support plate 21.

[0031] Working principle: First, press down on both ends of the push plate 417 extending outside the protective frame 411. The push plate 417 moves along the guide groove 416 under force. The movement of the push plate 417 compresses the return spring 415 inside the receiving groove 414. During the movement, the push plate 417 drives the locking block 418 to move. When the locking block 418 is misaligned with the locking jaw on the locking plate 413, rotate the protective door 412. Then place the anchor on the upper end face of the static load platform 3. Rotate the protective door 412 again. When the locking plate 413 on the protective door 412 abuts against the locking block 418 on the protective frame 411, the locking block 41... 8. Under force, the locking block 418 contracts inward towards the receiving groove 414. During the contraction process, the locking block 418 will press the return spring 415 inside the receiving groove 414 through the push plate 417. When the locking block 418 corresponds to the locking slot on the locking plate 413, the locking block 418 is inserted into the locking slot on the locking plate 413, thereby fixing the position of the protective door 412. At this time, the hydraulic cylinder 22 is activated, and the hydraulic cylinder 22 drives the prestressing block 23 to apply pressure to the anchor on the static load platform 3 for testing. When under prestressing pressure, uneven pressure causes the anchor under pressure to dislodge from the prestressing component. When the anchor breaks out at the pressure point, it will directly impact the protective frame 411 and the protective door 412, thus preventing injury to workers. When the anchor hits the protective door 412, it will directly impact the reinforcing steel plate 427. The reinforcing steel plate 427 is compressed by the force, pressing against the buffer plate 421. The buffer plate 421, under the force, pushes the moving block 424 along the slide rod 423 through the connecting arm 426. The sliding of the moving block 424 compresses the helical spring 425 between the moving block 424 and the connecting block 422. The helical spring 425 contracts under the force, thereby mitigating the impact on the protective frame. The force of the door 412 is reduced, thereby reducing the risk of the protective door 412 being knocked open. After the anchor test is completed, the protective door 412 is opened and the anchor that has been tested is removed in the above manner. Finally, the above operation is repeated. If it is necessary to replace the reinforcing steel plate 427 on the buffer plate 421, pull the reinforcing steel plate 427 upward to separate the hanging plate 429 on the reinforcing steel plate 427 from the hanging groove 428 on the buffer plate 421. Then, remove the reinforcing steel plate 427 from the buffer plate 421 and hang the new reinforcing steel plate 427 on the buffer plate 421 through the hanging plate 429.

[0032] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0033] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A static load testing device for prestressed anchorages, comprising a workbench (1), characterized in that, A prestressing assembly is provided on one side of the upper end face of the workbench (1). A static load platform (3) and a protective assembly (4) are provided on the upper end face of the workbench (1). The static load platform (3) is located inside the protective assembly (4). The protective assembly (4) includes a protective component (41) and an auxiliary buffer component (42). The protective component (41) is connected to the workbench (1). The auxiliary buffer component (42) is provided on the protective component (41).

2. The prestressed anchor static load test device according to claim 1, characterized in that, The protective component (41) is provided with a protective frame (411), the cross-section of the protective frame (411) is U-shaped, a protective door (412) is rotatably provided at the opening of the protective frame (411), a lock plate (413) is provided at one end of the protective door (412), a lock opening is provided on the lock plate (413), and a receiving groove (414) is provided in one side wall of the protective frame (411).

3. The prestressed anchor static load test device according to claim 2, characterized in that, Multiple return springs (415) are provided inside the receiving groove (414). Guide grooves (416) are provided at both ends of the receiving groove (414). A push plate (417) is provided inside the receiving groove (414). The cross-section of the push plate (417) is U-shaped. Both ends of the push plate (417) extend through the protective frame (411) to the outside of the protective frame (411). The bends at both ends of the push plate (417) are located inside the two guide grooves (416) inside the receiving groove (414).

4. The prestressed anchor static load test device according to claim 3, characterized in that, A locking block (418) is provided on the push plate (417). One end of the locking block (418) away from the push plate (417) extends through the protective frame (411) to the inside of the lock opening on the lock plate (413). A chamfer is opened at the corner of the wall opposite to the protective door (412).

5. The prestressed anchor static load test device according to claim 2, characterized in that, The auxiliary buffer (42) includes a buffer plate (421) disposed inside the protective frame (411) and multiple sets of connecting blocks (422) disposed on the protective door (412). Each set of connecting blocks (422) has two blocks. A sliding rod (423) is disposed between the two connecting blocks (422). Two moving blocks (424) are slidably disposed on the sliding rod (423). The two moving blocks (424) are symmetrical about the sliding rod (423). A helical spring (425) is disposed on the moving block (424). The end of the helical spring (425) away from the moving block (424) is connected to the connecting block (422) on one side of the moving block (424).

6. The prestressed anchor static load test device according to claim 5, characterized in that, A connecting arm (426) is rotatably mounted on the movable block (424). One end of the connecting arm (426) away from the movable block (424) is rotatably connected to the buffer plate (421). A reinforcing steel plate (427) is provided on one side of the buffer plate (421). Multiple hanging plates (429) are provided on the wall opposite to the buffer plate (421) of the reinforcing steel plate (427). Multiple hanging grooves (428) are opened on the upper end face of the buffer plate (421). The hanging plates (429) on the reinforcing steel plate (427) are hung in the hanging grooves (428) on the buffer plate (421).

7. The prestressed anchor static load test device according to claim 1, characterized in that, The prestressing assembly includes a support plate (21) disposed on one side of the upper end face of the workbench (1). The cross-section of the support plate (21) is L-shaped. A hydraulic cylinder (22) is disposed on the upper end face of the support plate (21). The output end of the hydraulic cylinder (22) passes through the support plate (21), and a prestressing block (23) is disposed at one end of the support plate (21).

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