Bending strength testing machine for PHC (prestressed high-strength concrete) pipe pile

Abstract

The utility model discloses a PHC tubular pile bending strength testing machine, relates to the bending strength testing machine technical field, the PHC tubular pile bending strength testing machine comprises a rack, both ends of the rack are provided with supports, each moving mechanism comprises a slide groove, a roller, an open groove and a spacing plate, through the arrangement of a fixed plate, the roller is cooperated, when the position of the support is adjusted, the fixed plate is fixed on the rack, and when the position of the support is adjusted, the fixed plate is fixed on the rack. At the moment, a fixing bolt is rotated to enable a fixing plate to move, at the moment, the fixing plate is pulled to enable the fixing plate not to be attached to a limiting plate any more, and due to the fact that rolling wheels are arranged below the support, a worker can easily push the support to move; at the moment, the fixing bolt is rotated in the opposite direction to push the fixing plate until the fixing plate is attached to the outer portion of the limiting plate to clamp and fix the limiting plate, the roller cannot move, the position of the support is fixed, the position of the support is conveniently adjusted according to the length of the pipe pile, and the bending strength test of the pipe pile is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of bending test machines, in particular to a PHC pipe pile bending strength test machine. Background Art

[0002] PHC pipe piles, namely prestressed high-strength concrete pipe piles, are made into a hollow cylindrical concrete precast component by using the pre-stressed centrifugal forming process and undergoing steam curing at 10 atmospheres and about 180°C.

[0003] At present, the existing screw rod straightening device (such as patent number: CN216446053U) discloses a large diameter pipe pile bending test device, including a frame and a pressure mechanism, the pressure mechanism is used to apply a load to the pipe pile to be tested; the lower end of the frame is fixedly connected to the foundation, the frame includes at least two horizontal support beams, at least two horizontal support beams are used to place the pipe pile during the test, at least two horizontal support beams are fixed at the bottom of the frame and have the same spacing with the foundation; the frame also includes a top plate, the top plate is fixed at the upper end of the frame, the pressure mechanism is connected to the top plate, the pipe pile is located between the support beam and the pressure mechanism and is connected to the support beam and the pressure mechanism. When the load is applied to the pipe pile to be tested, the test device has a simple and clear connection force, and the foundation is only subjected to the weight of the frame, the pressure mechanism and the pipe pile, which can greatly reduce the load transferred to the foundation, and can effectively solve the problems of poor geology, poor foundation strength and poor pull-out resistance.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following problems: the lengths of the pipe piles required for the bending strength test were different, while the distance between the two end supports for placing the pipe piles was certain. If the pipe piles were shorter, the two ends of the pipe piles could not be placed on the supports, thus affecting the bending strength test of the pipe piles. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a PHC pipe pile bending strength testing machine, which solves the technical problem that the pipe piles required for the bending strength test are of different lengths, while the distance between the two end supports for placing the two ends of the pipe pile is certain. If the pipe pile is shorter, the two ends of the pipe pile cannot be placed on the supports, thus affecting the bending strength test of the pipe pile.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A PHC pipe pile bending strength testing machine comprises a frame, both ends of the frame are provided with supports, both ends of the frame are provided with fixed plates, both ends of each fixed plate are movably connected with fixing bolts, two threaded grooves are provided at both ends of the frame, the fixing bolts are threadedly connected inside the threaded grooves, two moving mechanisms are provided at both ends of the frame, each moving mechanism comprises a slide groove, a roller, a slot and a limit plate, the slide groove is provided on the upper surface of the frame, the roller is movably connected inside the slide groove, the slot is provided on the outside of the frame, the slot is communicated with the slide groove, the limit plate is slidably connected inside the slot, and the limit plate is provided on the upper surface of the roller, wherein the two ends of the support are respectively provided on the outside of the two limit plates, and the fixed plate is fitted with the outside of the limit plate.

[0010] Preferably: each of the fixing plates is provided with a first pattern on the outside, each of the limiting plates is provided with a second pattern on a side close to the first pattern, each of the two ends of the support is provided with mounting grooves, one end of the roller close to the limiting plate is clamped in the inside of the mounting groove, each of the rollers is provided with a threaded hole on the outside, each of the two ends of the support is movably connected with a limiting bolt, the limiting bolt is threadedly connected in the inside of the threaded hole, a fixing hole is provided on the upper surface of each of the rollers, the limiting plate is slidably connected in the inside of the fixing hole, a limiting groove is provided on a side of each of the sliding grooves away from the groove, and the end of the limiting plate away from the groove is slidably connected in the inside of the limiting groove.

[0011] Preferably, circular holes are formed at both ends of each of the fixing plates, and fixing bolts are movably connected inside the circular holes.

[0012] Preferably, a handle is fixedly mounted on the outside of each fixing plate, and the handle is a concave body.

[0013] (III) Beneficial effects

[0014] 1. By setting a fixed plate and cooperating with rollers, when adjusting the position of the support, turn the fixing bolt to make the fixing plate movable. At this time, pull the fixing plate so that the fixing plate no longer fits with the limit plate. Since a roller is provided under the support, the staff can easily push the support to move. When it moves to a suitable position, turn the fixing bolt in the opposite direction so that the fixing bolt pushes the fixing plate until the fixing plate fits with the outside of the limit plate to clamp and fix the limit plate. At this time, the roller cannot move, and the position of the support is fixed, which is convenient for adjusting the position of the support according to the length of the pipe pile to prevent affecting the bending strength test of the pipe pile.

[0015] 2. By setting the installation groove and cooperating with the limit bolt, the limit bolt is rotated to release the connection between the limit bolt and the threaded hole. At this time, the support is pulled upward to release the connection between the roller and the installation groove. At this time, the connection between the support and the roller is released. At this time, the limit plate is pulled again to release the connection between the limit plate and the fixed hole. The disassembly steps of the roller and the support are simple, which is convenient for the staff to replace the damaged roller and support or replace them according to work needs, reducing the difficulty of disassembly and assembly of the roller and the support. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 For this utility model Figure 1 Structural diagram of the middle bracket;

[0019] Figure 3 For this utility model Figure 1 Structural diagram of the middle support;

[0020] Figure 4 For this utility model Figure 3 The structural diagram of the middle support from above;

[0021] Figure 5 For this utility model Figure 1 Structural diagram of the middle fixing plate.

[0022] Legend: 1. Frame; 2. Support; 3. Fixing plate; 4. Fixing bolt; 5. Threaded groove; 6. Slide groove; 7. Roller; 8. Slot; 9. Limiting plate; 10. First pattern; 11. Second pattern; 12. Mounting groove; 13. Threaded hole; 14. Limiting bolt; 15. Fixing hole; 16. Limiting groove; 17. Round hole; 18. Handle. DETAILED DESCRIPTION

[0023] The embodiment of the present application provides a PHC pipe pile bending strength testing machine, which effectively solves the technical problem that the pipe piles required for the bending strength test are of different lengths, while the distance between the two end supports 2 for placing the two ends of the pipe pile is certain. If the pipe pile is shorter, the two ends of the pipe pile cannot be placed on the supports 2, thereby affecting the bending strength test of the pipe pile.

[0024] Example

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The technical solution in the embodiment of the present application effectively solves the problem that the lengths of the pipe piles required for the bending strength test are different, and the distance between the two end supports 2 for placing the two ends of the pipe pile is certain. If the pipe pile is shorter, the two ends of the pipe pile cannot be placed on the supports 2, thereby affecting the bending strength test of the pipe pile. The overall idea is as follows:

[0026] In view of the problems existing in the prior art, the utility model provides a PHC pipe pile bending strength testing machine, which comprises a frame 1, a support 2 is provided at both ends of the frame 1, a fixing plate 3 is provided at both ends of the frame 1, both ends of each fixing plate 3 are movably connected with a fixing bolt 4, two thread grooves 5 are provided at both ends of the frame 1, the fixing bolt 4 is threadedly connected inside the thread groove 5, and two moving mechanisms are provided at both ends of the frame 1;

[0027] Each moving mechanism includes a slide 6, a roller 7, a slot 8 and a limit plate 9;

[0028] The slide groove 6 is provided on the upper surface of the frame 1, the roller 7 is movably connected inside the slide groove 6, the slot 8 is provided outside the frame 1, the slot 8 is communicated with the slide groove 6, the limit plate 9 is slidably connected inside the slot 8, and the limit plate 9 is arranged on the upper surface of the roller 7;

[0029] Wherein, the two ends of the support 2 are respectively arranged outside the two limit plates 9;

[0030] The fixing plate 3 is in contact with the outer portion of the limiting plate 9 .

[0031] By setting the fixing plate 3 and cooperating with the roller 7, when the position of the support 2 is adjusted, the fixing bolt 4 is rotated to make the fixing plate 3 movable. At this time, the fixing plate 3 is pulled so that the fixing plate 3 no longer fits with the limiting plate 9. Since the roller 7 is provided under the support 2, the staff can easily push the support 2 to move. When it moves to a suitable position, the fixing bolt 4 is rotated in the opposite direction so that the fixing bolt 4 pushes the fixing plate 3 until the fixing plate 3 fits with the outside of the limiting plate 9 to clamp and fix the limiting plate 9. At this time, the roller 7 cannot move. At this time, the position of the support 2 is fixed, which is convenient for adjusting the position of the support 2 according to the length of the pipe pile to prevent affecting the bending strength test of the pipe pile.

[0032] Each fixing plate 3 has a first pattern 10 formed on its exterior;

[0033] Among them, each limiting plate 9 is provided with a second pattern 11 on one side close to the first pattern 10 , so as to increase the friction between the fixing plate 3 and the limiting plate 9 .

[0034] Both ends of each support 2 are provided with mounting grooves 12;

[0035] Among them, one end of the roller 7 close to the limiting plate 9 is clamped in the interior of the installation groove 12, which is convenient for disassembly and assembly of the roller 7.

[0036] A threaded hole 13 is formed on the outside of each roller 7, and both ends of each support 2 are movably connected to limit bolts 14;

[0037] The limiting bolt 14 is threadedly connected to the inside of the threaded hole 13 to facilitate the installation of the reinforcement roller 7.

[0038] A fixing hole 15 is formed on the upper surface of each roller 7;

[0039] The limiting plate 9 is slidably connected inside the fixing hole 15 , which facilitates the disassembly and assembly of the limiting plate 9 .

[0040] A limiting groove 16 is formed on one side of each chute 6 away from the groove 8;

[0041] The end of the limiting plate 9 away from the groove 8 is slidably connected to the inside of the limiting groove 16 to limit the movable range of the end of the limiting plate 9 away from the groove 8 .

[0042] Each fixing plate 3 has circular holes 17 at both ends;

[0043] The fixing bolt 4 is movably connected inside the circular hole 17 , which is the position where the fixing bolt 4 moves.

[0044] A handle 18 is fixedly mounted on the outside of each fixing plate 3;

[0045] The handle 18 is a concave body, which is convenient for pulling the fixing plate 3.

[0046] By setting the installation groove 12 and cooperating with the limit bolt 14, the limit bolt 14 is rotated to release the connection between the limit bolt 14 and the threaded hole 13. At this time, the support 2 is pulled upward to release the connection between the roller 7 and the installation groove 12. At this time, the connection between the support 2 and the roller 7 is released. At this time, the limit plate 9 is pulled again to release the connection between the limit plate 9 and the fixing hole 15. The disassembly steps of the roller 7 and the support 2 are simple, which is convenient for the staff to replace the damaged roller 7 and the support 2 or replace them according to work requirements, reducing the difficulty of disassembly and assembly of the roller 7 and the support 2.

[0047] Working principle:

[0048] In the first step, the roller 7 is placed inside the slide groove 6. At this time, the limit plate 9 is inserted into the fixing hole 15 through the slot 8. At this time, the limit plate 9 is continued to be pushed until the limit plate 9 enters the limit groove 16. At this time, the support 2 is clamped on the outside of the roller 7 through the installation groove 12. At this time, the limit bolt 14 is rotated so that the limit bolt 14 is threadedly connected to the inside of the threaded hole 13. At this time, the support 2 is installed;

[0049] In the second step, by setting the fixing plate 3 and cooperating with the roller 7, the staff pushes the support 2 to move the support 2 to a suitable position. Since the roller 7 is set under the support 2, the staff can easily push the support 2 to move. When it moves to a suitable position, the fixing bolt 4 is threadedly connected to the inside of the thread groove 5 through the round hole 17. At this time, the first pattern 10 on the fixing plate 3 and the second pattern 11 on the limiting plate 9 are engaged with each other. At this time, the fixing bolt 4 is continued to be rotated until the fixing plate 3 presses the limiting plate 9. At this time, the roller 7 cannot move. At this time, the position of the support 2 is fixed, which is convenient for adjusting the position of the support 2 according to the length of the pipe pile to prevent affecting the bending strength test of the pipe pile.

[0050] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A PHC pile bending strength testing machine, comprising a frame (1), wherein both ends of the frame (1) are provided with supports (2), characterized in that: Both ends of the frame (1) are provided with fixing plates (3), both ends of each fixing plate (3) are movably connected with fixing bolts (4), both ends of the frame (1) are provided with two thread grooves (5), the fixing bolts (4) are threadedly connected inside the thread grooves (5), and both ends of the frame (1) are provided with two moving mechanisms; Each moving mechanism comprises a slide groove (6), a roller (7), a slot (8) and a limit plate (9); The slide groove (6) is provided on the upper surface of the frame (1), the roller (7) is movably connected inside the slide groove (6), the slot (8) is provided outside the frame (1), the slot (8) is communicated with the slide groove (6), the limit plate (9) is slidably connected inside the slot (8), and the limit plate (9) is arranged on the upper surface of the roller (7); Wherein, the two ends of the support (2) are respectively arranged outside the two limit plates (9); The fixing plate (3) is in contact with the outside of the limiting plate (9).

2. A PHC pile bending strength testing machine as claimed in claim 1, characterized in that: Each of the fixing plates (3) is provided with a first pattern (10) on its exterior; Wherein, each limiting plate (9) has a second pattern (11) formed on one side close to the first pattern (10).

3. A PHC pile bending strength testing machine as claimed in claim 1, characterized in that: Both ends of each support (2) are provided with mounting grooves (12); One end of the roller (7) close to the limiting plate (9) is clamped inside the mounting groove (12).

4. A PHC pile bending strength testing machine as claimed in claim 1, characterized in that: A threaded hole (13) is formed on the outside of each roller (7), and both ends of each support (2) are movably connected to a limit bolt (14); The limiting bolt (14) is threadedly connected inside the threaded hole (13).

5. A PHC pile bending strength testing machine as claimed in claim 1, characterized in that: A fixing hole (15) is formed on the upper surface of each roller (7); The limiting plate (9) is slidably connected inside the fixing hole (15).

6. A PHC pile bending strength testing machine as claimed in claim 1, characterized in that: A limiting groove (16) is provided on a side of each of the slide grooves (6) away from the groove (8); The end of the limiting plate (9) away from the groove (8) is slidably connected to the inside of the limiting groove (16).

7. A PHC pile bending strength testing machine as claimed in claim 1, characterized in that: Both ends of each of the fixing plates (3) are provided with circular holes (17); The fixing bolt (4) is movably connected inside the circular hole (17).

8. A PHC pile bending strength testing machine as claimed in claim 1, characterized in that: A handle (18) is fixedly mounted on the outside of each of the fixing plates (3); Wherein, the handle (18) is a concave body.

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