Device and method for detecting crack resistance of concrete pipe pile

Abstract

The invention discloses a concrete pipe pile anti-cracking performance detection device and method, and relates to the technical field of concrete pipe pile detection.The concrete pipe pile anti-cracking performance detection device comprises a base, supports are fixedly connected to the two ends of the base, a clamping mechanism is fixedly connected to each support, and a supporting frame is fixedly connected to the position, between the two supports, of the base; the supporting frame is fixedly connected with a pressure mechanism used for applying pressure to the concrete pipe pile, and the pressure mechanism is fixedly connected with an adjusting mechanism used for adjusting pressure distribution. The concrete pipe pile is fixed through the clamping mechanism, and then the pressure is applied to the concrete pipe pile through the pressure mechanism; and the two opposite sides of the concrete pipe pile are subjected to the same pressure, so that the anti-cracking performance detection of the concrete pipe pile can be completed when the hydraulic rod applies low driving force, the driving force needing to be applied by the hydraulic rod is reduced, and consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of concrete pipe pile detection, and in particular to a device and method for detecting the anti-cracking performance of concrete pipe piles. Background Art

[0002] Concrete pipe piles are a kind of hollow cylindrical concrete prefabricated components. The crack resistance of prestressed concrete pipe piles is an important indicator to measure whether their structural performance is safe, which directly affects the bearing capacity of the pipe pile foundation and the safety of the building structure. Therefore, it is necessary to test their crack resistance during production. The Chinese patent with application number "CN118547730A" provides a PHC concrete pipe pile crack resistance test device. The application adjusts the direction of the cylinder through the radial adjustment mechanism and the axial adjustment mechanism, applies axial pressure and tension to the pipe pile, and experiments on the crack resistance of the pipe pile under different stress conditions, thereby improving the overall application range of the device. However, in the application, the pressure exerted by the cylinder on the concrete pipe pile will be decomposed by the arc-shaped clamping ring. The pressure is larger at the position close to the cylinder, while it is smaller at the position far away from the cylinder. At the same time, pressure can only be applied to the upper and lower sides of the concrete pipe pile, and the detection data range is low. Summary of the invention

[0003] The purpose of the present invention is to provide a device for detecting the anti-cracking performance of concrete pipe piles to solve the problems raised in the above background technology.

[0004] In order to achieve the above-mentioned invention object, the present invention adopts the following technical scheme: A device for detecting the anti-cracking performance of concrete pipe piles provided by the present invention comprises a base, both ends of the base are fixedly connected with brackets, each of the brackets is fixedly connected with a clamping mechanism, the base is fixedly connected with a support frame at a position between the two brackets, the support frame is fixedly connected with a pressure mechanism for applying pressure to the concrete pipe piles, and the pressure mechanism is fixedly connected with an adjustment mechanism for adjusting the pressure distribution.

[0005] Furthermore, the clamping mechanism includes a clamping ring fixedly connected to the bracket, a rotating disk is rotatably connected to the clamping ring, a spiral groove is provided on the rotating disk, a sliding groove is provided on the rotating disk, a clamping block is slidably connected in the sliding groove, the clamping block is threadedly connected to the spiral groove on one side close to the rotating disk, and a driving rod for driving the rotating disk to rotate is rotatably connected to the clamping ring.

[0006] Furthermore, the pressure mechanism includes a hydraulic rod fixedly connected to a support frame, the output end of the hydraulic rod is fixedly connected to a piston plate, the piston plate is slidably connected to a hydraulic cylinder, a connecting port is opened at the bottom end of the hydraulic cylinder, the end of the hydraulic cylinder away from the piston plate is fixedly connected to a first fixed frame, a first fixed sleeve rod is symmetrically fixedly connected to the first fixed frame, a first sliding rod is slidably connected inside the first fixed sleeve rod, an end of the first sliding rod extending outside the first fixed sleeve rod is fixedly connected to a first arc plate, the support frame is fixedly connected to a connecting rod near the hydraulic cylinder, and one end of the connecting rod is fixedly connected to the hydraulic cylinder.

[0007] Further, the adjustment mechanism includes a second fixed frame fixedly connected to the hydraulic cylinder near the first fixed frame, the second fixed frame is rotatably connected to a rotating ring, the rotating ring is provided with a sliding ring groove, a second fixed sleeve rod is slidably connected in the sliding ring groove, a second sliding rod is slidably connected in the second fixed sleeve rod, and a second arc plate is fixedly connected to one end of the second sliding rod extending outside the second fixed sleeve rod, a gear ring is fixedly connected to the outer wall of the rotating ring, a connecting shaft is rotatably connected at a position close to the gear ring on the rotating frame, a gear is fixedly connected to the connecting shaft, a motor is fixedly connected to a side of the second fixed frame away from the gear, an output end of the motor is fixedly connected to the connecting shaft, a fixed rod is fixedly connected to the rotating ring, a rotating shaft is rotatably connected to one end of the fixed rod away from the rotating ring, a toggle rod is fixedly connected to one end of the rotating shaft away from the fixed rod, a mounting groove is provided on the toggle rod, a clamping rod is slidably connected in the mounting groove, a spring is fixedly connected between the clamping rod and the mounting groove, a clamping groove is provided at a position corresponding to the clamping rod, and a plurality of sliding components are fixedly connected in the sliding ring groove.

[0008] Furthermore, the sliding assembly includes a first connecting tube fixedly connected to the sliding ring groove, a second connecting tube is sleeved on the first connecting tube, and one end of the second connecting tube is fixedly connected to a fixing.

[0009] Furthermore, the fixing seat is fixedly connected to the adjacent first connecting pipe.

[0010] Furthermore, the first connecting pipe is connected to the hydraulic cylinder through a communicating port.

[0011] Furthermore, the inner cavities of the first fixing sleeve rod and the second fixing sleeve rod are connected to the hydraulic cylinder through a communicating port.

[0012] Furthermore, the first arc-shaped plate and the second arc-shaped plate are arranged at intervals, and adjacent parts of the first arc-shaped plate and the second arc-shaped plate are stacked on each other.

[0013] A method for detecting the anti-cracking performance of concrete pipe piles comprises the following steps: Step 1: Place both ends of the concrete pipe pile to be tested on the clamping mechanism and fix them; Step 2: Apply pressure to the surface of the concrete pile by a pressure mechanism to test the crack resistance of the concrete pile; Step 3: Adjust the pressure distribution on the concrete piles through the regulating mechanism and conduct multi-angle detection.

[0014] Compared with the prior art, one or more of the above technical solutions have the following beneficial effects: The present invention fixes the concrete pipe pile by a clamping mechanism, and then applies pressure to the concrete pipe pile by a pressure mechanism, so that the two opposite sides of the concrete pipe pile are subjected to the same pressure, so that the crack resistance test of the concrete pipe pile can be completed when the hydraulic rod applies a lower driving force, thereby reducing the driving force required to be applied by the hydraulic rod and reducing consumption; Through the setting adjustment mechanism, the second arc plate applies pressure to the concrete pipe pile from all sides to carry out multi-angle detection. The pressure applied to the concrete pipe pile is in a vertical direction, the pressure is uniform, there is no force loss, and the detection data is more comprehensive.

[0015] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 is an exploded view of the clamping mechanism of the present invention; Figure 3 It is a schematic diagram of the connection structure of the support frame and the pressure mechanism of the present invention; Figure 4 It is a schematic diagram of the overall structure of the regulating mechanism of the present invention; Figure 5 is a sectional view of the side of the adjustment mechanism of the present invention; Figure 6 It is a structural schematic diagram of the sliding assembly of the present invention; Figure 7 The exploded diagram of the connection structure between the fixed rod and the toggle rod of the present invention Figure 1 ; Figure 8 The exploded diagram of the connection structure between the fixed rod and the toggle rod of the present invention Figure 2 .

[0018] In the figure: 1. Base; 2. Bracket; 3. Clamping mechanism; 4. Support frame; 5. Pressure mechanism; 6. Adjustment mechanism; 7. Clamping ring; 8. Rotating plate; 9. Spiral groove; 10. Sliding groove; 11. Clamping block; 12. Driving rod; 13. Hydraulic rod; 14. Piston plate; 15. Hydraulic cylinder; 16. Connecting port; 17. First fixed frame; 18. First fixed sleeve rod; 19. First sliding rod; 20. First arc plate; 21. Connecting rod; 22. First Second fixed frame; 23, rotating ring; 24, sliding ring groove; 25, second fixed sleeve rod; 26, second sliding rod; 27, second arc plate; 28, gear ring; 29, connecting shaft; 30, gear; 31, motor; 32, fixed rod; 33, rotating shaft; 34, toggle rod; 35, installation groove; 36, clamping rod; 37, spring; 38, clamping groove; 39, sliding assembly; 40, first connecting tube; 41, second connecting tube; 42, fixed seat. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0020] See also Figures 1 to 8 The present invention provides a device for detecting the anti-cracking performance of concrete pipe piles, comprising a base 1, wherein both ends of the base 1 are fixedly connected with brackets 2, each of the brackets 2 is fixedly connected with a clamping mechanism 3, the base 1 is fixedly connected with a support frame 4 at a position between the two brackets 2, the support frame 4 is fixedly connected with a pressure mechanism 5 for applying pressure to the concrete pipe piles, and the pressure mechanism 5 is fixedly connected with an adjustment mechanism 6 for adjusting the pressure distribution.

[0021] The two ends of the concrete pipe pile to be tested are placed on the clamping mechanism 3 and fixed, and pressure is applied to the surface of the concrete pipe pile by the pressure mechanism 5 to test the crack resistance of the concrete pipe pile. The pressure distribution of the pressure acting on the concrete pipe pile is adjusted by the set adjustment mechanism 6, and the range of action of the pressure mechanism 5 is changed to perform multi-angle detection.

[0022] See also Figure 2The clamping mechanism 3 includes a clamping ring 7 fixedly connected to the bracket 2, a rotating disk 8 is rotatably connected to the clamping ring 7, a spiral groove 9 is provided on the rotating disk 8, a sliding groove 10 is provided on the rotating disk 8, a clamping block 11 is slidably connected in the sliding groove 10, the clamping block 11 is threadedly connected to the spiral groove 9 on one side close to the rotating disk 8, and a driving rod 12 for driving the rotating disk 8 to rotate is rotatably connected to the clamping ring 7.

[0023] The two ends of the concrete pipe pile are placed in the clamping ring 7, and the driving rod 12 drives the rotating disk 8 to rotate. The rotating disk 8 drives the clamping block 11 to rotate through the spiral groove 9, thereby clamping and fixing the two ends of the concrete pipe pile.

[0024] See also Figure 3 and Figure 5 The pressure mechanism 5 includes a hydraulic rod 13 fixedly connected to the support frame 4, the output end of the hydraulic rod 13 is fixedly connected to a piston plate 14, a hydraulic cylinder 15 is slidably connected to the piston plate 14, a connecting port 16 is provided at the bottom end of the hydraulic cylinder 15, one end of the hydraulic cylinder 15 away from the piston plate 14 is fixedly connected to a first fixed frame 17, a first fixed sleeve rod 18 is symmetrically fixedly connected to the first fixed frame 17, a first sliding rod 19 is slidably connected inside the first fixed sleeve rod 18, and one end of the first sliding rod 19 extending outside the first fixed sleeve rod 18 is fixedly connected to a first arc plate 20, and a connecting rod 21 is fixedly connected to the support frame 4 near the hydraulic cylinder 15, and one end of the connecting rod 21 is fixedly connected to the hydraulic cylinder 15.

[0025] After the two ends of the concrete pipe pile are fixed, the hydraulic rod 13 is started to generate a driving force, and the hydraulic rod 13 drives the piston plate 14 to move. The movement of the piston plate 14 presses the hydraulic oil in the hydraulic cylinder 15 through the connecting port 16 and enters the first fixed sleeve rod 18 and the second fixed sleeve rod 25, so that the two first sliding rods 19 are pushed towards each other under the action of the hydraulic oil. The two first sliding rods 19 move towards each other and drive the first arc plates 20 to move towards each other, so that the two first arc plates 20 apply pressure to the relative positions of the concrete pipe piles, so as to carry out the anti-cracking performance test, so that the opposite sides of the concrete pipe piles are subjected to the same pressure, and then the anti-cracking performance test of the concrete pipe piles can be completed when the hydraulic rod 13 applies a lower driving force, thereby reducing the driving force required to be applied by the hydraulic rod 13 and reducing consumption.

[0026] See also Figures 4 to 8The adjusting mechanism 6 includes a second fixed frame 22 fixedly connected to the hydraulic cylinder 15 near the first fixed frame 17, a rotating ring 23 is rotatably connected to the second fixed frame 22, a sliding ring groove 24 is provided on the rotating ring 23, a second fixed sleeve rod 25 is slidably connected in the sliding ring groove 24, a second sliding rod 26 is slidably connected in the second fixed sleeve rod 25, and a second arc plate 27 is fixedly connected to one end of the second sliding rod 26 extending outside the second fixed sleeve rod 25, a gear ring 28 is fixedly connected to the outer wall of the rotating ring 23, a connecting shaft 29 is rotatably connected to the position of the rotating frame 22 near the gear ring 28, a gear 30 is fixedly connected to the connecting shaft 29, and the first A motor 31 is fixedly connected to the side of the second fixed frame 22 away from the gear 30, and the output end of the motor 31 is fixedly connected to the connecting shaft 29. A fixed rod 32 is fixedly connected to the rotating ring 23, and the end of the fixed rod 32 away from the rotating ring 23 is rotatably connected to the rotating shaft 33, and the end of the rotating shaft 33 away from the fixed rod 32 is fixedly connected to a toggle rod 34, and a mounting groove 35 is formed on the toggle rod 34, and a clamping rod 36 is slidably connected in the mounting groove 35, and a spring 37 is fixedly connected between the clamping rod 36 and the mounting groove 35, and a clamping groove 38 is formed at the position corresponding to the clamping rod 36, and a plurality of sliding components 39 are fixedly connected in the sliding ring groove 24.

[0027] In the initial state, under the action of the spring 37, the clamping rod 36 is located in the clamping groove 38, so that the toggle rod 34 is fixed relative to the fixed rod 32. When a larger range of pressure detection is performed on the concrete pipe pile, the motor 31 is started, and the motor 31 drives the connecting shaft 29 to rotate. The rotation of the connecting shaft 29 drives the gear 30 to rotate. The rotation of the gear 30 drives the gear ring 28 to rotate. The rotation of the gear ring 28 drives the rotating ring 23 to rotate. The rotation of the rotating ring 23 drives the fixed rod 32 to rotate. The rotation of the fixed rod 32 drives the rotating shaft 33 to rotate. The rotation of the rotating shaft 33 drives the toggle rod 34 to rotate. The rotation of the toggle rod 34 drives one of the second fixed sleeve rods 25 to slide in the sliding ring groove 24. The sliding assembly 39 is used for limiting. When sliding to a certain position, the second fixed sleeve rod 25 cannot slide, and the toggle rod 34 continues to rotate. The two sides of the clamping rod 36 are inclined, so that the clamping rod 36 and the clamping rod 36 are The inner wall of the groove 38 conflicts with each other, the clamping rod 36 moves into the installation groove 35, the toggle rod 34 rotates around the rotating shaft 33, and the toggle rod 34 is disengaged from one of the second fixed sleeve rods 25. Then, under the action of the torsion spring, the toggle rod 34 rotates around the rotating shaft 33 to return to the initial position, driving the next second fixed sleeve rod 25 to move to the corresponding position, so that multiple second fixed sleeve rods 25 are axially distributed around the concrete pipe pile. When the hydraulic oil enters the second fixed sleeve rod 25, it drives the second sliding rod 26 to move, and the movement of the second sliding rod 26 drives the second arc plate 27 to move. The second arc plate 27 moves to the surface of the concrete pipe pile, so that the second arc plate 27 applies pressure to the concrete pipe pile from all sides of the concrete pipe pile, and performs multi-angle detection to make the detection data more comprehensive. During the detection, the pressure applied to the concrete pipe pile all around is in the vertical direction, without force loss, thereby reducing the driving force generated by the hydraulic rod 13.

[0028] See also Figure 6 The sliding assembly 39 includes a first connecting tube 40 fixedly connected to the sliding ring groove 24 , a second connecting tube 41 is sleeved on the first connecting tube 40 , and one end of the second connecting tube 41 is fixedly connected to a fixing seat 42 .

[0029] See also Figure 6 The fixing seat 42 is fixedly connected to the adjacent first connecting pipe 40 .

[0030] When the toggle rod 34 drives the second fixed sleeve rod 25 to move, the movement of the second fixed sleeve rod 25 drives the fixed seat 42 to move, the movement of the fixed seat 42 drives the second connecting tube 41 to move, the second connecting tube 41 moves and slides with the first connecting tube 40. When moving to the end of the first connecting tube 40, the first connecting tube 40 and the fixed seat 42 are relatively fixed, so that the second fixed sleeve rod 25 moves to the corresponding position and is relatively fixed.

[0031] See also Figure 5The first connecting pipe 40 is connected to the hydraulic cylinder 15 through the connecting port 16, and the hydraulic oil enters the first connecting pipe 40 through the connecting port 16, and then enters the second fixed sleeve rod 25. A control valve is set between the first connecting pipe 40 and the connecting port 16 to control whether the hydraulic oil flows to the first connecting pipe 40.

[0032] See also Figure 5 The inner cavity of the first fixed sleeve rod 18 is connected to the hydraulic cylinder 15 through the connecting port 16. When the hydraulic oil enters the first fixed sleeve rod 18 through the connecting port 16, the first sliding rod 19 is driven to move.

[0033] See also Figure 5 The first arc plate 20 and the second arc plate 27 are spaced apart, and adjacent portions of the first arc plate 20 and the second arc plate 27 are stacked on each other, thereby reducing the space occupied by the first arc plate 20 and the second arc plate 27.

[0034] A method for detecting the anti-cracking performance of concrete pipe piles comprises the following steps: Step 1: Place both ends of the concrete pipe pile to be tested on the clamping mechanism 3 and fix them; Step 2: applying pressure to the surface of the concrete pile by the pressure mechanism 5 to test the anti-cracking performance of the concrete pile; Step 3: Adjust the pressure distribution on the concrete pipe pile through the regulating mechanism 6 to perform multi-angle detection.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for detecting the anti-cracking performance of concrete pipe piles, characterized in that: The invention comprises a base (1), both ends of the base (1) are fixedly connected to brackets (2), each of the brackets (2) is fixedly connected to a clamping mechanism (3), the base (1) is fixedly connected to a support frame (4) at a position between the two brackets (2), the support frame (4) is fixedly connected to a pressure mechanism (5) for applying pressure to a concrete pipe pile, and the pressure mechanism (5) is fixedly connected to an adjustment mechanism (6) for adjusting pressure distribution.

2. A concrete pipe pile anti-cracking performance detection device according to claim 1, characterized in that: The clamping mechanism (3) comprises a clamping ring (7) fixedly connected to the bracket (2), a rotating disk (8) being rotatably connected to the clamping ring (7), a spiral groove (9) being provided on the rotating disk (8), a sliding groove (10) being provided on the rotating disk (8), a clamping block (11) being slidably connected in the sliding groove (10), a side of the clamping block (11) close to the rotating disk (8) being threadedly connected to the spiral groove (9), and a driving rod (12) for driving the rotating disk (8) to rotate being rotatably connected to the clamping ring (7).

3. A concrete pipe pile anti-cracking performance detection device according to claim 1, characterized in that: The pressure mechanism (5) comprises a hydraulic rod (13) fixedly connected to a support frame (4); an output end of the hydraulic rod (13) is fixedly connected to a piston plate (14); a hydraulic cylinder (15) is sleeved and slidably connected to the piston plate (14); a communicating port (16) is provided at the bottom end of the hydraulic cylinder (15); an end of the hydraulic cylinder (15) away from the piston plate (14) is fixedly connected to a first fixed frame (17); a first fixed sleeve rod (18) is symmetrically fixedly connected to the first fixed frame (17); a first sliding rod (19) is slidably connected inside the first fixed sleeve rod (18); an end of the first sliding rod (19) extending outside the first fixed sleeve rod (18) is fixedly connected to a first arc plate (20); a connecting rod (21) is fixedly connected to a position of the support frame (4) close to the hydraulic cylinder (15); one end of the connecting rod (21) is fixedly connected to the hydraulic cylinder (15).

4. A concrete pipe pile anti-cracking performance detection device according to claim 3, characterized in that: The adjusting mechanism (6) comprises a second fixed frame (22) fixedly connected to the hydraulic cylinder (15) near the first fixed frame (17); a rotating ring (23) is rotatably connected to the second fixed frame (22); a sliding ring groove (24) is provided on the rotating ring (23); a second fixed sleeve rod (25) is slidably connected in the sliding ring groove (24); a second sliding rod (26) is slidably connected in the second fixed sleeve rod (25); a second arc-shaped plate (27) is fixedly connected to one end of the second sliding rod (26) extending outside the second fixed sleeve rod (25); a gear ring (28) is fixedly connected to the outer wall of the rotating ring (23); a connecting shaft (29) is rotatably connected to a position of the rotating frame (22) near the gear ring (28); a gear (30) is fixedly connected to the connecting shaft (29); and the second fixed A motor (31) is fixedly connected to a side of the frame (22) away from the gear (30), an output end of the motor (31) is fixedly connected to a connecting shaft (29), a fixing rod (32) is fixedly connected to the rotating ring (23), an end of the fixing rod (32) away from the rotating ring (23) is rotatably connected to a rotating shaft (33), an end of the rotating shaft (33) away from the fixing rod (32) is fixedly connected to a toggle rod (34), a mounting groove (35) is provided on the toggle rod (34), a clamping rod (36) is slidably connected in the mounting groove (35), a spring (37) is fixedly connected between the clamping rod (36) and the mounting groove (35), a clamping groove (38) is provided at a position corresponding to the clamping rod (36), and a plurality of sliding components (39) are fixedly connected in the sliding ring groove (24).

5. A concrete pipe pile anti-cracking performance detection device according to claim 4, characterized in that: The sliding assembly (39) comprises a first connecting tube (40) fixedly connected to the sliding ring groove (24), a second connecting tube (41) sleeved on the first connecting tube (40), and one end of the second connecting tube (41) fixedly connected to a fixing seat (42).

6. A concrete pipe pile anti-cracking performance detection device according to claim 5, characterized in that: The fixing seat (42) is fixedly connected to the adjacent first connecting pipe (40).

7. A concrete pipe pile anti-cracking performance detection device according to claim 5, characterized in that: The first connecting pipe (40) is connected to the hydraulic cylinder (15) via the communication port (16).

8. A concrete pipe pile anti-cracking performance detection device according to claim 4, characterized in that: The inner cavities of the first fixed sleeve rod (18) and the second fixed sleeve rod (25) are connected to the hydraulic cylinder (15) via the communication port (16).

9. A concrete pipe pile anti-cracking performance detection device according to claim 4, characterized in that: The first arc-shaped plate (20) and the second arc-shaped plate (27) are arranged at intervals, and adjacent portions between the first arc-shaped plate (20) and the second arc-shaped plate (27) are stacked on top of each other.

10. A method for detecting the anti-cracking performance of concrete pipe piles according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place both ends of the concrete pipe pile to be tested on the clamping mechanism (3) and fix them; Step 2: applying pressure to the surface of the concrete pile by means of a pressure mechanism (5) to test the crack resistance of the concrete pile; Step 3: The pressure distribution on the concrete pile is adjusted by the regulating mechanism (6) to perform multi-angle detection.

Images