A device for testing the compressive strength of a concrete precast segment

Abstract

The utility model relates to concrete segment detection technical field and disclose a kind of concrete prefabricated segment compression resistance test device, including base, the upper portion fixed mounting of base has mounting bracket, the inside movable mounting of fixed frame has first bidirectional screw rod, the both ends outside thread of first bidirectional screw rod is installed with first moving block, the outside fixed mounting of first moving block has first connecting plate, the outside fixed mounting of fixed frame has first motor, the upper surface sliding installation of base has sliding block, the upper portion fixed mounting of sliding block has moving frame, the inside movable mounting of moving frame has second bidirectional screw rod, the both ends outside thread of second bidirectional screw rod is installed with second moving block, the outside fixed mounting of second moving block has second connecting plate, the outside fixed mounting of second connecting plate has mounting plate, the outside fixed mounting of moving frame has second motor. The placement of different sizes of concrete segments can be adapted, and pressure detection of different sizes of concrete segments is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of concrete segment testing technology, specifically a precast concrete segment compressive strength testing device. Background Technology

[0002] Precast concrete segments are tunnel linings assembled from components prefabricated in factories or on-site. Prefabricated lining is one of the development directions of underground engineering. The quality of concrete segments is directly related to the overall quality of the project, so it is necessary to test the bending resistance of the segments.

[0003] Among the existing published patents, a pressure testing platform for precast reinforced concrete tunnel segments (publication number: CN219319977U) "includes a base, a support frame fixedly connected to the upper outer surface of the base, a first hydraulic actuator fixedly connected to the upper inner surface of the support frame, a pressure plate fixedly connected to the lower outer surface of the first hydraulic actuator, a pressure sensor fixedly connected to the front outer surface of the pressure plate, a second hydraulic actuator fixedly connected to the left inner surface of the support frame, a first sliding groove formed on the upper outer surface of the base, and a movable platform slidably connected to the upper outer surface of the base. This pressure testing platform for precast reinforced concrete tunnel segments is capable of detecting..." The advantages of testing precast concrete segments of different diameters are that it solves the problem that existing pressure testing benches for precast concrete segments can only test segments of a single diameter and cannot test segments of different diameters, thus reducing the practicality of the pressure testing benches for precast concrete segments. However, there are still some shortcomings in use. The adjustment during operation can only be made to adjust the support seat left and right. However, existing concrete segments not only have different widths on the left and right sides, but also different lengths. Adjusting only the width cannot fully meet the support needs of concrete segments of different sizes. Therefore, a pressure testing device for precast concrete segments is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a precast concrete segment compressive strength testing device. This device is adaptable to the placement of concrete segments of different sizes, facilitating pressure testing of concrete segments of different sizes, and solving the problems mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the following technical solution is provided: a precast concrete segment compressive strength testing device, comprising a base, an mounting frame fixedly installed on the upper part of the base, a debris groove formed on the upper surface of the mounting frame, a fixed frame fixedly installed on the bottom of the base, a first bidirectional lead screw movably installed inside the fixed frame, a first moving block threaded onto the outer ends of the first bidirectional lead screw, a first connecting plate fixedly installed on the outer side of the first moving block, a first motor fixedly installed on the outer side of the fixed frame, a slider slidably installed on the upper surface of the base, a moving frame fixedly installed on the upper part of the slider, a second bidirectional lead screw movably installed inside the moving frame, a second moving block threaded onto the outer ends of the second bidirectional lead screw, a second connecting plate fixedly installed on the outer side of the second moving block, an mounting plate fixedly installed on the outer side of the second connecting plate, and a second motor fixedly installed on the outer side of the moving frame.

[0008] Preferably, the output end of the first motor is fixedly connected to the right end of the first bidirectional lead screw, the two sides of the fixed frame are provided with first sliding grooves, the outer surface of the first connecting plate is slidably connected to the inner wall of the first sliding groove, and the upper part of the first connecting plate is fixedly connected to the surface of the slider.

[0009] Preferably, the output end of the second motor is fixedly connected to the front end of the second bidirectional lead screw, a second sliding groove is provided on the outer side of the moving frame, the second connecting plate is slidably connected to the inner wall of the second sliding groove, and the bottom of the mounting plate is slidably connected to the surface of the moving frame.

[0010] Preferably, the upper surface of the mounting plate is provided with a mounting groove, the inner wall of the mounting groove is slidably mounted with a retainer, the surfaces of the second connecting plate and the retainer are provided with positioning holes, and the inner wall of the positioning holes is threaded with positioning bolts.

[0011] Preferably, a pressure cylinder is fixedly installed on the upper part of the mounting frame, a pressure plate is fixedly installed on the lower end of the pressure cylinder, and a sensor is provided on the lower surface of the pressure plate.

[0012] Preferably, a control panel is fixedly mounted on the outside of the mounting bracket, and the control panel is electrically connected to the sensor.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a compressive strength testing device for precast concrete segments, which has the following beneficial effects:

[0015] 1. The precast concrete segment compressive strength testing device, through the arrangement of a fixed frame, a first bidirectional screw rod, a first moving block, a first motor, a first connecting plate, a slider, a moving frame, a second bidirectional screw rod, a second moving block, a second connecting plate, and a second motor, can adapt to the placement of concrete segments of different sizes, facilitating pressure testing of concrete segments of different sizes.

[0016] 2. The precast concrete segment compressive strength testing device, through the setting of mounting plate, positioning bolt, clamp, pressure cylinder, pressure plate and control panel, achieves convenient replacement of clamp and facilitates placement of concrete segments with different orientations. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0018] Figure 2 This is a side view of the present invention.

[0019] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0020] In the diagram: 1. Base; 2. Mounting bracket; 3. Debris trough; 4. Fixing frame; 5. First double-acting lead screw; 6. First moving block; 7. First motor; 8. First connecting plate; 9. Slider; 10. Moving frame; 11. Second double-acting lead screw; 12. Second moving block; 13. Second connecting plate; 14. Second motor; 15. Mounting plate; 16. Positioning bolt; 17. Card seat; 18. Pressure cylinder; 19. Pressure plate; 20. Control panel. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments. Obviously, the described embodiments are only some embodiments, not all embodiments. Based on the embodiments described, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0022] Example 1:

[0023] Please see Figure 1-3 A precast concrete segment compressive strength testing device includes a base 1, an mounting frame 2 fixedly installed on the upper part of the base 1, a debris groove 3 formed on the upper surface of the mounting frame 2, a fixed frame 4 fixedly installed at the bottom of the base 1, a first bidirectional lead screw 5 movably installed inside the fixed frame 4, a first moving block 6 threadedly installed on the outer sides of both ends of the first bidirectional lead screw 5, a first connecting plate 8 fixedly installed on the outer side of the first moving block 6, a first motor 7 fixedly installed on the outer side of the fixed frame 4, a slider 9 slidably installed on the upper surface of the base 1, a moving frame 10 fixedly installed on the upper part of the slider 9, a second bidirectional lead screw 11 movably installed inside the moving frame 10, a second moving block 12 threadedly installed on the outer sides of both ends of the second bidirectional lead screw 11, a second connecting plate 13 fixedly installed on the outer side of the second moving block 12, an mounting plate 15 fixedly installed on the outer side of the second connecting plate 13, and a second motor 14 fixedly installed on the outer side of the moving frame 10.

[0024] Specifically, the gravel generated after testing the concrete segments will be collected in the debris trough and then processed uniformly. When the first bidirectional screw 5 rotates, the first connecting plate 8 will move. The first connecting plate 8 is slidably connected to the side of the base 1 to ensure the stable movement of the first connecting plate 8. The first connecting plate 8 will move along with the moving frame 10. When the second bidirectional screw 11 rotates, the second connecting plate 13 can move along with the mounting base.

[0025] Preferably, the output end of the first motor 7 is fixedly connected to the right end of the first bidirectional lead screw 5, the two sides of the fixed frame 4 are provided with first sliding grooves, the outer surface of the first connecting plate 8 is slidably connected to the inner wall of the first sliding groove, and the upper part of the first connecting plate 8 is fixedly connected to the surface of the slider 9.

[0026] Specifically, the first motor 7 can rotate the first bidirectional lead screw 5, and the first motor 7 can rotate in both directions, so that the first moving blocks 6 can move closer to each other and further away from each other.

[0027] Preferably, the output end of the second motor 14 is fixedly connected to the front end of the second bidirectional lead screw 11, a second sliding groove is provided on the outer side of the moving frame 10, the second connecting plate 13 is slidably connected to the inner wall of the second sliding groove, and the bottom of the mounting plate 15 is slidably connected to the surface of the moving frame 10.

[0028] Specifically, the second motor 14 drives the second bidirectional lead screw 11 to rotate, and the second motor 14 can also rotate in both directions.

[0029] Working principle: By starting the first motor 7, the first bidirectional lead screw 5 is driven to rotate. When the first bidirectional lead screw 5 rotates clockwise, the first moving blocks 6 move away from each other. The first moving blocks 6 move the first connecting plate 8 to both sides, and the first connecting plate 8 moves the upper slider 9. The slider 9 moves the moving frame 10, which can expand to both sides, thereby changing the length of the precast concrete pipe segment. Then, by starting the second motor 14, the second lead screw is driven to rotate, and the second moving block 12 on the second lead screw will move. The second moving block 12 moves the second connecting plate 13, which in turn moves the mounting plate 15. The mounting plate 15 has adjustable mounting brackets 17 with adjustable width and length to accommodate the placement of concrete pipe segments of different sizes, facilitating pressure testing of concrete pipe segments of different sizes.

[0030] Example 2:

[0031] Please see Figure 1-3 The upper surface of the mounting plate 15 is provided with a mounting groove, and a card seat 17 is slidably installed on the inner wall of the mounting groove. The surfaces of the second connecting plate 13 and the card seat 17 are provided with positioning holes, and positioning bolts 16 are threadedly installed on the inner wall of the positioning holes.

[0032] Specifically, V-shaped and arc-shaped brackets 17 can be installed in the mounting slot, allowing the outer arc of the concrete pipe segment to be placed higher or lower.

[0033] Preferably, a pressure cylinder 18 is fixedly installed on the upper part of the mounting bracket 2, and a pressure plate 19 is fixedly installed on the lower end of the pressure cylinder 18. A sensor is provided on the lower surface of the pressure plate 19.

[0034] Preferably, a control panel 20 is fixedly mounted on the outside of the mounting bracket 2, and the control panel 20 is electrically connected to the sensor.

[0035] Working principle: When performing pressure testing on the outer arc of a concrete pipe segment, the V-shaped clamp 17 can be installed on the mounting plate 15, and the two plates of the concrete pipe segment can be clamped on the clamp 17. Then, the pressure cylinder 18 moves downward with the pressure plate 19, and the pressure begins to squeeze the concrete pipe segment. The sensor will record the pressure generated, and the data will be transmitted to the control panel 20. When the clamp 17 needs to be replaced, the positioning bolt 16 is removed, the clamp 17 is removed, the new clamp 17 is installed into the mounting groove, and the positioning bolt 16 is installed into the positioning hole to fix the clamp 17, thereby achieving convenient replacement of the clamp 17.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A compressive strength testing device for precast concrete segments, comprising a base (1), characterized in that: A mounting bracket (2) is fixedly installed on the upper part of the base (1). A debris groove (3) is opened on the upper surface of the mounting bracket (2). A fixed frame (4) is fixedly installed on the bottom of the base (1). A first bidirectional lead screw (5) is movably installed inside the fixed frame (4). A first moving block (6) is threaded on the outer side of both ends of the first bidirectional lead screw (5). A first connecting plate (8) is fixedly installed on the outer side of the first moving block (6). A first motor (7) is fixedly installed on the outer side of the fixed frame (4). A slider (9) is slidably installed on the upper surface of the base (1). A moving frame (10) is fixedly installed on the upper part of the slider (9). A second bidirectional lead screw (11) is movably installed inside the moving frame (10). A second moving block (12) is threaded on the outer side of both ends of the second bidirectional lead screw (11). A second connecting plate (13) is fixedly installed on the outer side of the second moving block (12). A mounting plate (15) is fixedly installed on the outer side of the second connecting plate (13). A second motor (14) is fixedly installed on the outer side of the moving frame (10).

2. The precast concrete segment compressive strength testing device according to claim 1, characterized in that: The output end of the first motor (7) is fixedly connected to the right end of the first bidirectional lead screw (5). The two sides of the fixed frame (4) are provided with first sliding grooves. The outer surface of the first connecting plate (8) is slidably connected to the inner wall of the first sliding groove. The upper part of the first connecting plate (8) is fixedly connected to the surface of the slider (9).

3. The precast concrete segment compressive strength testing device according to claim 1, characterized in that: The output end of the second motor (14) is fixedly connected to the front end of the second bidirectional lead screw (11). The outer side of the moving frame (10) is provided with a second sliding groove. The second connecting plate (13) is slidably connected to the inner wall of the second sliding groove. The bottom of the mounting plate (15) is slidably connected to the surface of the moving frame (10).

4. The compressive strength testing device for precast concrete segments according to claim 1, characterized in that: The upper surface of the mounting plate (15) is provided with a mounting groove, and a card seat (17) is slidably installed on the inner wall of the mounting groove. The surfaces of the second connecting plate (13) and the card seat (17) are provided with positioning holes, and positioning bolts (16) are threadedly installed on the inner wall of the positioning holes.

5. The precast concrete segment compressive strength testing device according to claim 1, characterized in that: A pressure cylinder (18) is fixedly installed on the upper part of the mounting bracket (2), and a pressure plate (19) is fixedly installed on the lower end of the pressure cylinder (18). A sensor is provided on the lower surface of the pressure plate (19).

6. The compressive strength testing device for precast concrete segments according to claim 1, characterized in that: A control panel (20) is fixedly mounted on the outside of the mounting bracket (2), and the control panel (20) is electrically connected to the sensor.

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