Tubular pile bending test detection device

Abstract

The utility model discloses a tubular pile bending test detection device which comprises a base and a supporting cantilever arranged in the middle of the base, a hydraulic tester is arranged on the supporting cantilever, a pull rod used for being movably connected with the base is arranged on one side of the supporting cantilever, and a sliding trolley capable of moving towards the outer side of the base along a moving track is arranged at the top of the pull rod. The pull rod and the movable sliding trolley which are movably connected are arranged, the pull rod can move along the track along with the sliding trolley, and the problems that in the prior art, rotating operation of the pull rod is strenuous, and potential safety hazards exist are solved.

Description

Technical Field

[0001] This utility model relates to the field of pipe pile bending resistance testing, specifically to a pipe pile bending resistance testing device. Background Technology

[0002] In the bending resistance testing of pipe piles, the pipe pile is typically placed on a support frame on the base, and a concentrated load is applied at the mid-span of the pipe pile (pressure is applied by a hydraulic cylinder driving a pressure block) to induce bending deformation. By measuring the deflection and strain changes at the mid-span of the sample, the bending strength and stiffness of the pipe pile can be determined.

[0003] However, existing testing devices present numerous inconveniences and safety hazards during operation. For example, to facilitate the placement of pipe piles, existing testing devices require a detachable tie rod on the side of the support cantilever where the hydraulic cylinder is installed. The bottom of the tie rod is rotatably connected to the base (e.g., Figure 4 As shown in the diagram, when placing the pipe pile, the tie rod needs to be rotated down, and after the pipe pile is placed, the tie rod is rotated up again and secured to the end of the support cantilever. However, due to the large pressure applied by the hydraulic cylinder, the tie rod has a large diameter to ensure the stability of the support cantilever, resulting in its heavy weight. During the rotation of the tie rod, multiple people are required to push it together, which is not only laborious but also prone to causing danger. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a pipe pile bending resistance test device.

[0005] This utility model is achieved through the following technical solution:

[0006] A pipe pile bending resistance test device includes a base and a support cantilever in the middle. A hydraulic tester is installed on the support cantilever. A tie rod for movably connecting with the base is provided on one side of the support cantilever. A sliding trolley that can move along a moving track to the outside of the base is provided at the top of the tie rod.

[0007] Further optionally, the sliding trolley includes a trolley body disposed inside the moving track, the trolley body is equipped with multiple moving wheels supported on the moving track, and a support seat rotatably connected to a rotating shaft is disposed in the middle of the trolley body, the center of the rotating shaft being connected and fixed to the top of the pull rod.

[0008] Alternatively, the moving track is connected and fixed to one side of the support cantilever, and the outside of the moving track is connected and fixed to the side end of the base through a lateral support frame.

[0009] Alternatively, the center of the moving track has a through slot that extends toward the end of the support cantilever and passes through the tie rod.

[0010] Alternatively, a limiting screw for restricting the sliding trolley can be inserted into the connection end between the moving track and the supporting cantilever.

[0011] Alternatively, a connecting seat is provided on the side of the base opposite the supporting cantilever, and the connecting seat has a slot for inserting a pull rod. The bottom of the pull rod is threaded with a fixing nut that locks with the base.

[0012] Further optionally, the hydraulic testing apparatus includes a hydraulic cylinder fixed to the center of the top of the supporting cantilever, with a pressure block connected to the bottom of the piston rod of the hydraulic cylinder.

[0013] Alternatively, support frames for supporting the placement of pipe piles are fixed on both sides of the upper part of the base.

[0014] Compared with existing technologies, the advantages of this utility model are: by setting a movable connecting rod and a movable sliding trolley, the rod can move along the track with the sliding trolley, which solves the problem that the rod rotation operation in the prior art is laborious and poses safety hazards. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 Another perspective illustration;

[0017] Figure 3 yes Figure 2 Enlarged view of a partial structure in the middle;

[0018] Figure 4 This is a schematic diagram of the prior art of this utility model;

[0019] In the diagram: 1. Base; 2. Support frame; 3. Support cantilever; 4. Hydraulic cylinder; 5. Pressure block; 6. Tie rod; 7. Sliding trolley; 71. Trolley body; 72. Moving wheel; 73. Support seat; 74. Rotating shaft; 8. Moving track; 81. Through slot; 9. Lateral support frame; 10. Limiting screw; 11. Connecting seat; 12. Fixing nut; 13. Pipe pile. Detailed Implementation

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0021] like Figure 1 As shown, a pipe pile bending resistance test device includes a base 1 and a support cantilever 3 set in the middle. A hydraulic tester is set on the support cantilever 3. A tie rod 6 for movably connecting with the base 1 is set on one side of the support cantilever 3. A sliding trolley 7 that can move along the moving track 8 to the outside of the base 1 is set on the top of the tie rod 6.

[0022] The base 1 provides a stable support foundation, and the support cantilever 3 is located in the middle of the base to support the hydraulic testing device. The hydraulic testing device applies a concentrated load through a hydraulic cylinder and a pressure block, causing the pipe pile to bend and deform. The sliding trolley 7 is located on top of the tie rod 6 and can move along the moving track 8, facilitating position adjustment to accommodate the placement of pipe piles of different sizes.

[0023] like Figure 2 , 3 As shown, the sliding trolley 7 includes a trolley body 71 disposed inside the moving track 8. The trolley body 71 is equipped with multiple moving wheels 72 supported on the moving track 8. A support seat 73 rotatably connected to a rotating shaft 74 is disposed in the middle of the trolley body 71. The center of the rotating shaft 74 is connected and fixed to the top of the pull rod 6.

[0024] The trolley body 71 of the sliding trolley 7 slides on the moving track 8 via moving wheels 72. The moving wheels 72 enable the trolley to move smoothly on the track, reducing frictional resistance. The support seat 73 in the middle of the trolley body is rotatably connected to the rotating shaft 74. The center of the rotating shaft 74 is fixedly connected to the top of the pull rod. This structural design ensures the stability of the pull rod 6 during movement. Through the structural design of the sliding trolley 7, the problem of requiring multiple people to push the pull rod during rotation in existing technologies is solved. With the cooperation of the moving wheels and the rotating shaft, the sliding trolley can move smoothly on the moving track, and the pull rod can be rotated and adjusted via the rotating shaft, reducing the labor intensity of operators and improving operational safety and efficiency.

[0025] like Figure 2 As shown, the moving track 8 is fixedly connected to one side of the support cantilever 3, and the outside of the moving track 8 is fixedly connected to the side of the base 1 through the lateral support frame 9. The design of the lateral support frame 9 may include multiple support points to enhance the stability and load-bearing capacity of the moving track 8.

[0026] like Figure 3 As shown, the center of the moving track 8 has a through slot 81 that extends toward the end of the support cantilever 3 and passes through the tie rod 6. The design of the through slot 81 allows the tie rod 6 to move freely in the moving track 8 while maintaining the stability of the connection with the support cantilever 3.

[0027] like Figure 3 As shown, a limiting screw 10 is inserted at the connection end between the moving track 8 and the supporting cantilever 3 to restrict the sliding trolley 7. The function of the limiting screw 10 is to prevent the sliding trolley 7 from exceeding the predetermined range during movement, thereby ensuring the accuracy and safety of the test.

[0028] like Figure 1As shown, a connecting seat 11 is provided on the side of the base 1 opposite the supporting cantilever 3. The connecting seat 11 has a slot for inserting the pull rod 6. A fixing nut 12, which locks onto the base 1, is threaded onto the bottom of the pull rod 6. The design of the connecting seat 11 allows the pull rod 6 to be inserted through the slot and locked to the base by the fixing nut 12. This structure not only simplifies the installation and disassembly of the pull rod 6 but also enhances the connection stability between the pull rod 6 and the base 1. The threaded connection of the fixing nut 12 ensures that the pull rod 6 will not loosen under stress, thereby improving the reliability and safety of the entire device.

[0029] like Figure 1 As shown, the hydraulic testing apparatus includes a hydraulic cylinder 4 fixed to the center of the top of the supporting cantilever 3. A pressure block 5 is connected to the bottom of the piston rod of the hydraulic cylinder 4. Through the extension and retraction of its piston rod, the hydraulic cylinder drives the pressure block to apply a concentrated load to the pipe pile, thereby enabling the testing of the pipe pile's bending resistance. The hydraulic cylinder is fixed at the center of the top of the supporting cantilever, ensuring that the applied load is evenly distributed at the mid-span of the pipe pile, avoiding measurement errors caused by load eccentricity.

[0030] The upper part of the base 1 has two fixed support frames 2 for supporting the placement of the pipe pile 13. The support frames 2 are symmetrically arranged on both sides of the cantilever.

[0031] The implementation principle of the pipe pile bending resistance testing device in this application embodiment is as follows:

[0032] Before placing the pipe pile 13, loosen the fixing nut 12 at the bottom of the tie rod 6, then rotate and pull out the limiting screw 10 at the top to remove it from the restriction of the sliding trolley 7, push the tie rod 6, and the tie rod 6 moves outward along the moving track 8 away from the supporting cantilever 3 via the sliding trolley 7 at the top.

[0033] With the tie rod 6 removed from the unrestricted operating area at the front end of the rear support cantilever 3, the concrete pipe pile 13 is lifted using a forklift or overhead crane and placed into the placement slot of the support frame 2 along the unrestricted operating area at the front end of the support cantilever 3. After placement, the sliding trolley 7 is pulled back to the support cantilever 3, the lower part of the tie rod 6 is inserted into the slot of the connecting seat 11 and the fixing nut 12 is tightened, and then the limiting screw 10 is inserted to limit the sliding trolley 7. Subsequently, the hydraulic cylinder 4 is activated, carrying the pressure block 5, to apply pressure to the lower part of the pipe pile 13 at the mid-span, causing it to bend and deform. By measuring the deflection and strain changes at the mid-span of the sample, the bending strength and stiffness of the pipe pile can be calculated. In this way, by setting a movable sliding trolley and a movable connecting tie rod, the placement of the pipe pile does not require multiple people to operate; only the sliding trolley needs to be moved along the track, which improves the convenience and safety of operation and simplifies the placement and fixing process of the pipe pile.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A pipe pile bending resistance test device, comprising a base (1) and a supporting cantilever (3) disposed in the middle thereof, wherein a hydraulic tester is disposed on the supporting cantilever (3), characterized in that: The support cantilever (3) is provided with a tie rod (6) on one side for movably connecting with the base (1), and the top of the tie rod (6) is provided with a sliding trolley (7) that can move along the moving track (8) to the outside of the base (1).

2. The pipe pile bending resistance testing device according to claim 1, characterized in that: The sliding trolley (7) includes a trolley body (71) disposed inside the moving track (8). The trolley body (71) is equipped with a plurality of moving wheels (72) supported on the moving track (8). A support seat (73) rotatably connected to a rotating shaft (74) is disposed in the middle of the trolley body (71). The center of the rotating shaft (74) is fixedly connected to the top of the pull rod (6).

3. The pipe pile bending resistance testing device according to claim 2, characterized in that: The moving track (8) is fixedly connected to one side of the support cantilever (3), and the outside of the moving track (8) is fixedly connected to the side of the base (1) through the lateral support frame (9).

4. The pipe pile bending resistance testing device according to claim 3, characterized in that: The moving track (8) has a through slot (81) in the center that extends toward the end of the support cantilever (3) and passes through the tie rod (6).

5. The pipe pile bending resistance testing device according to claim 4, characterized in that: The moving track (8) is connected to the support cantilever (3) by a limiting screw (10) for the sliding trolley (7).

6. The pipe pile bending resistance testing device according to claim 1, characterized in that: The base (1) is provided with a connecting seat (11) on the side facing the supporting cantilever (3). The connecting seat (11) has a slot for inserting the pull rod (6). The bottom of the pull rod (6) is threaded with a fixing nut (12) that locks with the base (1).

7. The pipe pile bending resistance testing device according to claim 1, characterized in that: The hydraulic tester includes a hydraulic cylinder (4) fixed to the center of the top of the support cantilever (3), and a pressure block (5) is connected to the bottom of the piston rod of the hydraulic cylinder (4).

8. The pipe pile bending resistance test device according to claim 6, characterized in that: The upper sides of the base (1) are fixed with support frames (2) for supporting the placement of pipe piles (13).

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