A concrete pressure resistance testing device

Abstract

The present invention discloses a concrete pressure resistance test device, which relates to the technical field of pressure testing, and includes a control box, a control device, a bottom plate and a top plate, and also includes a test slot provided on the bottom plate, a first clamping portion, a bearing mechanism, a driving portion, a test portion for pressure testing, a resistance portion, and a state monitoring portion for monitoring a concrete block in the test. The device is provided with a test portion, so that the device can perform a static pressure test or a dynamic pressure test on a concrete block according to the actual use requirements of the concrete block, thereby increasing the test range of the device to a certain extent and improving the applicability of the device. At the same time, the device is provided with a first clamping portion and a second clamping portion, so that the device can clamp and fix the bottom and the top of the concrete block in the pressure test, avoiding the displacement of the concrete block during the dynamic pressure test, thereby improving the accuracy of the device for concrete pressure testing.

Description

Technical Field

[0001] The invention relates to the technical field of pressure testing, and in particular to a concrete pressure resistance testing device. Background Art

[0002] The concrete strength index is one of the important indicators to ensure the quality of concrete. When conducting a compression test on concrete, the concrete needs to be made into concrete blocks first, and then the concrete is subjected to a compression test. Currently, when conducting a compression test on concrete blocks, a compression test device is used.

[0003] However, the current compression test device can only perform static compression test on concrete. The actual conditions of concrete during use are complex. There is not only a single static pressure, but also dynamic pressure. However, the current compression test device cannot simulate different conditions to perform compression test on concrete blocks. The testing method is relatively simple and the data obtained is not comprehensive enough. Moreover, when the current testing device performs dynamic pressure test on concrete blocks, there is no corresponding fixing mechanism to fix the concrete blocks. This makes it easy for the concrete blocks to deviate from the test position when the dynamic pressure test is performed on the concrete blocks, thereby affecting the accuracy of the dynamic pressure test. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a concrete pressure resistance testing device to solve the above technical problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A concrete pressure resistance testing device comprises a control box and a control device, wherein the control device is detachably fixedly connected to the control box, a bottom plate and a top plate are arranged on the side of the control box, and the top plate and the bottom plate are symmetrically arranged on the control box, comprising:

[0007] A test slot is provided on the surface of the bottom plate close to the top plate and is used for placing the concrete block to be tested;

[0008] A first clamping part is located in the test slot and is electrically connected to the control device. A plurality of first clamping parts are provided and are evenly distributed in the test slot, and are used to clamp and fix the bottom of the concrete block to be tested.

[0009] A bearing mechanism, disposed on the top plate and electrically connected to the control device;

[0010] There are two driving parts, and the two driving parts are symmetrically arranged on the supporting mechanism, and the driving parts are electrically connected to the control device;

[0011] There are two test parts, and the two test parts are symmetrically arranged on the bearing mechanism, and the two test parts are respectively matched with adjacent driving parts, and the test parts are electrically connected to the control device;

[0012] The resistance part is arranged on the bearing mechanism and is electrically connected to the control device, and is used to cooperate with the testing part to switch the dynamic pressure test and the static pressure test of the concrete block by the testing part;

[0013] The monitoring part is arranged on the bottom plate and is electrically connected to the control device, and is used for monitoring the state of the concrete block under test.

[0014] Preferably, the first clamping portion comprises:

[0015] There are a plurality of first electric push rods, and the plurality of first electric push rods are evenly distributed in the test slot, the first electric push rods are fixedly connected to the bottom plate, and the first electric push rods are electrically connected to the control device;

[0016] The first clamping plate is arranged on the first electric push rod and is fixedly connected to the first electric push rod.

[0017] Preferably, the carrying mechanism comprises:

[0018] A sliding groove is formed on the top plate;

[0019] A test cover is disposed on the top plate and is slidably connected to the sliding slot, and the center line of the test cover coincides with the center line of the test slot;

[0020] A rectangular cover is disposed on the test cover and fixedly connected to the test cover, wherein the center line of the rectangular cover coincides with the center line of the test cover;

[0021] There are two ear plates, and the two ear plates are symmetrically arranged on two sides of the rectangular cover;

[0022] There are two power parts, and the two power parts are symmetrically arranged on the top plate, and the power parts are electrically connected to the control device and are used to adjust the distance between the test part and the concrete to be tested;

[0023] The second clamping part is located in the rectangular cover, and a plurality of the second clamping parts are provided and evenly distributed on the inner wall of the rectangular cover. The second clamping part is electrically connected to the control device and is used to clamp and fix the top of the concrete block to be tested.

[0024] Preferably, the power unit comprises:

[0025] A power motor is arranged on the top plate and is detachably fixedly connected to the top plate, and the power motor is electrically connected to the control device;

[0026] A power shaft is rotatably disposed on the top plate, and one end of the power shaft close to the power motor is fixedly connected to the output end of the power motor;

[0027] A test screw is arranged on the ear plate and threadedly connected to the ear plate, and one end of the test screw close to the power shaft is fixedly connected to the power shaft, and one end of the test screw away from the power motor is rotatably connected to the base plate.

[0028] Preferably, the second clamping portion comprises:

[0029] There are a plurality of second electric push rods, and the plurality of second electric push rods are evenly distributed in the rectangular cover, the second electric push rods are fixedly connected to the rectangular cover, and the second electric push rods are electrically connected to the control device;

[0030] The second clamping plate is arranged on the second electric push rod and is fixedly connected to the second electric push rod.

[0031] Preferably, the driving unit comprises:

[0032] A test motor is arranged on the test cover and is detachably fixedly connected to the test cover, and the test motor is electrically connected to the control device;

[0033] A test shaft is rotatably disposed on the test cover, and one end of the test shaft close to the test motor is fixedly connected to the output end of the test motor;

[0034] A fixing ring, which is sleeved on the test shaft and fixedly connected to the test shaft;

[0035] There are two toggle plates, and the two toggle plates are fixedly arranged on the fixing ring, and the central angle between the two toggle plates is an acute angle;

[0036] A rotating plate is sleeved on the test shaft and is rotatably connected to the test shaft, and the curvature of the side of the rotating plate gradually increases;

[0037] A fixed rod is eccentrically arranged on the rotating plate and is fixedly connected to the rotating plate, and is used for cooperating with the toggle plate to drive the rotating plate to rotate around the axis of the test shaft.

[0038] Preferably, the testing unit comprises:

[0039] A fixed block is disposed in the test cover and fixedly connected to the inner wall of the test cover, and a built-in groove is formed on the surface of the fixed block close to the test slot;

[0040] A return spring, located in the built-in groove and fixedly connected to the fixed block;

[0041] A sliding block, one end of which is located in the built-in groove, and the sliding block is slidably connected to the fixed block;

[0042] A wheel axle, disposed on the sliding block and fixedly connected to the sliding block;

[0043] A rolling wheel is disposed on the wheel shaft and is rotatably connected to the wheel shaft, and the rolling wheel cooperates with the rotating plate to drive the sliding block to slide back and forth in the built-in groove;

[0044] The test piece is located in the test cover and fixedly connected to the sliding blocks on both sides. The test piece is electrically connected to the control device and is used to perform pressure testing on the concrete to be tested.

[0045] Preferably, the test piece comprises:

[0046] A connecting plate is located in the test cover, and two ends of the connecting plate are slidably connected to adjacent sliding blocks;

[0047] A first hydraulic push rod is located in the test cover and is fixedly connected to the connection plate near the surface of the test slot, and the first hydraulic push rod is electrically connected to the control device;

[0048] The test pressing block is located in the test cover and is fixedly connected to one end of the first hydraulic push rod close to the test slot.

[0049] Preferably, the interference portion comprises:

[0050] A second hydraulic push rod is disposed in the test cover and fixedly connected to the test cover;

[0051] The stopper is located in the test cover and is fixedly connected to one end of the second hydraulic push rod close to the test slot, and is used to limit the movement of the connecting plate to perform a static pressure test.

[0052] Preferably, the monitoring unit includes:

[0053] A protective cover is disposed on the bottom plate and is detachably fixedly connected to the bottom plate;

[0054] A camera is arranged on the surface of the protective cover and is detachably fixedly connected to the protective cover. The camera is electrically connected to the control device and is used to monitor the status of the concrete block under test.

[0055] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0056] 1. The device is provided with a testing part, so that the device can perform static pressure test or dynamic pressure test on the concrete block according to the actual use requirements of the concrete block, thereby increasing the test range of the device to a certain extent and improving the applicability of the device.

[0057] 2. The device is provided with a first clamping part and a second clamping part, so that the device can clamp and fix the bottom and the top of the concrete block in the pressure test, avoiding the displacement of the concrete block during the dynamic pressure test, thereby improving the accuracy of the device for concrete pressure testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0059] Figure 1 A three-dimensional structural schematic diagram of a concrete pressure resistance testing device is shown.

[0060] Figure 2 A front view structural schematic diagram of a concrete pressure resistance testing device is shown.

[0061] Figure 3 Shows Figure 2 Sectional view of AA.

[0062] Figure 4 A right side view of a concrete compression resistance testing device is shown.

[0063] Figure 5 A top view of a concrete compression resistance testing device is shown.

[0064] Figure 6 An exploded view of a part of the structure of a concrete compression resistance testing device is shown.

[0065] Figure 7 An exploded view of the test cover and the test section is shown.

[0066] Figure 8 An exploded view of part of the structure in the test section is shown.

[0067] Fig. 9 Shows Figure 3 A schematic diagram of the enlarged local structure at point A in the middle.

[0068] Legend:

[0069] 1. Control box; 2. Control device; 3. Bottom plate; 4. Top plate; 5. Test slot; 6. First electric push rod; 7. First clamping plate; 8. Sliding slot; 9. Test cover; 10. Rectangular cover; 11. Ear plate; 12. Power motor; 13. Power shaft; 14. Test screw; 15. Second electric push rod; 16. Second clamping plate; 17. Test motor; 18. Test shaft; 19. Fixed ring; 20. Toggle plate; 21. Rotating plate; 22. Fixed rod; 23. Fixed block; 24. Built-in slot; 25. Reset spring; 26. Sliding block; 27. Wheel axle; 28. Rolling wheel; 29. ​​Connecting plate; 30. First hydraulic push rod; 31. Test pressure block; 32. Second hydraulic push rod; 33. Block; 34. Protective cover; 35. Camera. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0071] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0072] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0073] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0074] Reference Figures 1 to 9 An embodiment of a concrete pressure resistance testing device of the present invention is further described.

[0075] A concrete pressure resistance testing device comprises a control box 1 and a control device 2, wherein the control device 2 is detachably fixedly connected to the control box 1, a bottom plate 3 and a top plate 4 are arranged on the side of the control box 1, and the top plate 4 and the bottom plate 3 are symmetrically arranged on the control box 1, comprising:

[0076] A test slot 5 is provided on the surface of the bottom plate 3 close to the top plate 4 and is used for placing a concrete block to be tested;

[0077] A first clamping portion, located in the test slot 5 and electrically connected to the control device 2, wherein a plurality of the first clamping portions are provided and evenly distributed in the test slot 5, and used for clamping and fixing the bottom of the concrete block to be tested;

[0078] A bearing mechanism, disposed on the top plate 4 and electrically connected to the control device 2;

[0079] There are two driving parts, and the two driving parts are symmetrically arranged on the supporting mechanism, and the driving parts are electrically connected to the control device 2;

[0080] There are two test parts, and the two test parts are symmetrically arranged on the bearing mechanism, and the two test parts are respectively matched with adjacent driving parts, and the test parts are electrically connected to the control device 2;

[0081] The resistance part is arranged on the bearing mechanism and is electrically connected to the control device 2, and is used to cooperate with the testing part to switch the dynamic pressure test and the static pressure test of the concrete block by the testing part;

[0082] The monitoring unit is arranged on the bottom plate 3 and is electrically connected to the control device 2 for monitoring the state of the concrete block under test.

[0083] During operation, the concrete block to be tested is placed in the test slot 5 on the base plate 3, and the first clamping part is controlled by the control device 2 to clamp and fix the bottom of the concrete block. Then, the control device 2 controls the supporting mechanism to move toward the concrete block, thereby moving the test part arranged on the supporting mechanism to the corresponding test position, so as to facilitate the pressure test of the concrete block.

[0084] Reference Figures 1 to 9 As a preferred embodiment, the first clamping portion comprises:

[0085] There are a plurality of first electric push rods 6, and the plurality of first electric push rods 6 are evenly distributed in the test slot 5, the first electric push rods 6 are fixedly connected to the bottom plate 3, and the first electric push rods 6 are electrically connected to the control device 2;

[0086] The first clamping plate 7 is disposed on the first electric push rod 6 and is fixedly connected to the first electric push rod 6 .

[0087] During operation, when a concrete block is placed in the test slot 5, the control device 2 controls the first electric push rod 6 to start, so that the first electric push rod 6 extends, and then the first clamping plate 7 fixedly connected to the first electric push rod 6 moves toward the surface of the concrete block, until the first clamping plate 7 is attached to the surface of the concrete block and exerts a certain pressure, thereby fixing the bottom of the concrete block;

[0088] The device is provided with a first clamping part, so that the bottom of the concrete block can be fixed before the pressure test of the concrete block, thereby avoiding the concrete block from shifting during the subsequent dynamic pressure test of the concrete block, which affects the pressure test accuracy of the concrete block.

[0089] Reference Figures 1 to 9 As a preferred embodiment, the bearing mechanism comprises:

[0090] A sliding groove 8 is formed on the top plate 4;

[0091] A test cover 9 is disposed on the top plate 4 and is slidably connected to the sliding slot 8, and the center line of the test cover 9 coincides with the center line of the test slot 5;

[0092] A rectangular cover 10 is disposed on the test cover 9 and fixedly connected to the test cover 9, and the center line of the rectangular cover 10 coincides with the center line of the test cover 9;

[0093] There are two ear plates 11, and the two ear plates 11 are symmetrically arranged on two sides of the rectangular cover 10;

[0094] There are two power parts, and the two power parts are symmetrically arranged on the top plate 4, and the power parts are electrically connected to the control device 2, and are used to adjust the distance between the test part and the concrete to be tested;

[0095] The second clamping part is located in the rectangular cover 10, and there are multiple second clamping parts, and the multiple second clamping parts are evenly distributed on the inner wall of the rectangular cover 10. The second clamping part is electrically connected to the control device 2 and is used to clamp and fix the top of the concrete block to be tested.

[0096] During operation, the power unit provides power to the test cover 9, so that the test cover 9 moves toward the direction of the concrete block, and then drives the rectangular cover 10 fixedly connected to the test cover 9 toward the direction of the concrete block, until the height of the rectangular cover 10 from the bottom plate 3 is less than the height of the protective cover 34. At this time, the control device 2 clamps and fixes the upper side of the concrete block at the second clamping part, thereby avoiding the concrete block from being offset during the dynamic pressure test, thereby improving the pressure test accuracy of the device on the concrete block to a certain extent.

[0097] Reference Figures 1 to 9 As a preferred embodiment, the power unit includes:

[0098] A power motor 12 is disposed on the top plate 4 and is detachably fixedly connected to the top plate 4. The power motor 12 is electrically connected to the control device 2.

[0099] A power shaft 13 is rotatably disposed on the top plate 4, and one end of the power shaft 13 close to the power motor 12 is fixedly connected to the output end of the power motor 12;

[0100] The test screw 14 is arranged on the ear plate 11 and is threadedly connected to the ear plate 11. One end of the test screw 14 close to the power shaft 13 is fixedly connected to the power shaft 13, and one end of the test screw 14 away from the power motor 12 is rotatably connected to the base plate 3.

[0101] During operation, the control device 2 controls the power motor 12 to start, so that the power shaft 13 fixedly connected to the output end of the power motor 12 rotates, and then the test screw 14 fixedly connected to the power shaft 13 rotates, and the threaded transmission cooperation between the test screw 14 and the ear plate 11 makes the bearing mechanism move, thereby adjusting the distance between the test part and the second clamping part and the concrete block.

[0102] The device is provided with a power part, so that the device can adjust the distance between the second clamping part and the concrete block, so that the device can clamp concrete blocks of different sizes, thereby improving the stability of different concrete blocks during dynamic pressure tests and improving the accuracy of concrete block pressure tests. By adjusting the distance between the test part and the concrete block, the device can perform pressure tests on concrete blocks of different sizes, thereby improving the scope of application of the device to a certain extent.

[0103] Reference Figures 1 to 9 As a preferred embodiment, the second clamping portion comprises:

[0104] There are multiple second electric push rods 15, and the multiple second electric push rods 15 are evenly distributed in the rectangular cover 10, the second electric push rods 15 are fixedly connected to the rectangular cover 10, and the second electric push rods 15 are electrically connected to the control device 2;

[0105] The second clamping plate 16 is disposed on the second electric push rod 15 and is fixedly connected to the second electric push rod 15 .

[0106] When working, the control device 2 controls the second electric push rod 15 to start, so that the second electric push rod 15 is extended, so that the second clamping plate 16 fixedly connected to the second electric push rod 15 moves toward the direction of the concrete block until the second clamping plate 16 is attached to the surface of the concrete block and exerts a certain pressure, thereby fixing the upper part of the concrete block;

[0107] The device is provided with a second clamping part, so that the upper part of the concrete block can be fixed before the pressure test of the concrete block, and the bottom of the concrete block can be fixed in cooperation with the first clamping part, thereby further avoiding the displacement of the concrete block during the subsequent dynamic pressure test of the concrete block, thereby further improving the accuracy of the concrete pressure test of the device.

[0108] Reference Figures 1 to 9 As a preferred embodiment, the driving unit includes:

[0109] A test motor 17 is disposed on the test cover 9 and is detachably fixedly connected to the test cover 9. The test motor 17 is electrically connected to the control device 2.

[0110] A test shaft 18 is rotatably disposed on the test cover 9, and one end of the test shaft 18 close to the test motor 17 is fixedly connected to the output end of the test motor 17;

[0111] A fixing ring 19 is sleeved on the test shaft 18 and fixedly connected to the test shaft 18;

[0112] There are two toggle plates 20, and the two toggle plates 20 are fixedly disposed on the fixing ring 19, and the central angle between the two toggle plates 20 is an acute angle;

[0113] The rotating plate 21 is sleeved on the test shaft 18 and is rotatably connected to the test shaft 18, and the curvature of the side of the rotating plate 21 gradually increases;

[0114] The fixing rod 22 is eccentrically disposed on the rotating plate 21 , and the fixing rod 22 is fixedly connected to the rotating plate 21 , and is used for cooperating with the shifting plate 20 to drive the rotating plate 21 to rotate around the axis of the test shaft 18 .

[0115] During the dynamic pressure test, the control device 2 controls the test motor 17 to start, so that the test shaft 18 fixedly connected to the output end of the test motor 17 rotates, and then the fixed ring 19 fixedly connected to the test shaft 18 rotates, so that the two toggle plates 20 fixedly connected to the fixed ring 19 rotate around the axis of the test shaft 18. In the process of the two toggle plates 20 rotating around the axis of the test shaft 18, the cooperation between the toggle rod and the fixed rod 22 drives the rotating plate 21 fixedly connected to the fixed rod 22 to rotate around the test shaft 18, and the cooperation between the rotating plate 21 and the rolling wheel 28 causes the sliding block 26 to slide back and forth in the built-in groove 24 on the fixed block 23;

[0116] Reference Figures 1 to 9 As a preferred embodiment, the testing unit comprises:

[0117] A fixing block 23 is disposed in the test cover 9 and fixedly connected to the inner wall of the test cover 9, and a built-in groove 24 is formed on the surface of the fixing block 23 close to the test slot 5;

[0118] A return spring 25 is located in the built-in groove 24 and is fixedly connected to the fixing block 23;

[0119] A sliding block 26, one end of which is located in the built-in groove 24, and the sliding block 26 is slidably connected to the fixed block 23;

[0120] A wheel shaft 27, which is disposed on the sliding block 26 and is fixedly connected to the sliding block 26;

[0121] The rolling wheel 28 is disposed on the wheel shaft 27 and is rotatably connected to the wheel shaft 27. The rolling wheel 28 cooperates with the rotating plate 21 to drive the sliding block 26 to slide back and forth in the built-in groove 24.

[0122] The test piece is located in the test cover 9 and is fixedly connected to the sliding blocks 26 on both sides. The test piece is electrically connected to the control device 2 and is used to perform pressure testing on the concrete to be tested.

[0123] During operation, the cooperation between the rotating plate 21 and the rolling wheel 28 drives the sliding block 26 fixedly connected to the wheel axle 27 to slide back and forth in the built-in groove 24 on the fixed block 23, thereby driving the test piece set on the sliding block 26 to move back and forth, thereby realizing the dynamic pressure test of the concrete block.

[0124] Reference Figures 1 to 9 As a preferred embodiment, the test piece includes:

[0125] A connecting plate 29 is located in the test cover 9, and two ends of the connecting plate 29 are slidably connected to adjacent sliding blocks 26;

[0126] A first hydraulic push rod 30 is located in the test cover 9 and is fixedly connected to the connection plate 29 near the surface of the test slot 5. The first hydraulic push rod 30 is electrically connected to the control device 2;

[0127] The test pressing block 31 is located in the test cover 9 and is fixedly connected to one end of the first hydraulic push rod 30 close to the test slot 5 .

[0128] During the static pressure test, the first hydraulic push rod 30 is started by controlling the control device 2, so that the first hydraulic push rod 30 is extended, thereby causing the test block 31 fixedly connected to the first hydraulic push rod 30 to move toward the direction of the concrete block until the test block 31 contacts the concrete and continuously applies pressure to the concrete block, thereby realizing a static pressure test on the concrete block.

[0129] Reference Figures 1 to 9 As a preferred embodiment, the interference portion includes:

[0130] A second hydraulic push rod 32 is disposed in the test cover 9 and fixedly connected to the test cover 9;

[0131] The stopper 33 is located in the test cover 9 and is fixedly connected to one end of the second hydraulic push rod 32 close to the test slot 5, and is used to limit the movement of the connecting plate 29 to perform a static pressure test.

[0132] Before the static pressure test is performed on the concrete block, the second hydraulic push rod 32 is started by controlling the control device 2 to extend the second hydraulic push rod 32, thereby causing the stopper 33 fixedly connected to the second hydraulic push rod 32 to move in the direction of the connecting plate 29 until the stopper 33 is in contact with the surface of the connecting plate 29, thereby limiting the movement of the connecting plate 29, and avoiding the reaction force exerted by the concrete block on the test block 31 during the subsequent static pressure test on the concrete block, causing the connecting plate 29 to move, thereby improving the accuracy of the static pressure test of the concrete block by the device to a certain extent; when the concrete block needs to be subjected to a dynamic pressure test, it is only necessary to control the second hydraulic push rod 32 to contract by the control device 2, so that the stopper 33 is out of contact with the connecting plate 29, until the stopper 33 is reset, thereby releasing the restriction on the up and down reciprocating of the connecting plate 29, and facilitating the subsequent dynamic pressure test of the concrete block.

[0133] The device is provided with a resistance part, so that the device can switch between dynamic pressure test and static pressure test on the concrete block according to the pressure test requirements of the concrete block, thereby improving the pressure test range of the device to a certain extent.

[0134] Reference Figures 1 to 9As a preferred embodiment, the monitoring unit includes:

[0135] A protective cover 34 is disposed on the bottom plate 3 and is detachably fixedly connected to the bottom plate 3;

[0136] The camera 35 is disposed on the surface of the protective cover 34 and is detachably fixedly connected to the protective cover 34. The camera 35 is electrically connected to the control device 2 and is used to monitor the status of the concrete block under test.

[0137] When the concrete block is subjected to pressure test, the camera 35 detects the state of the concrete block in real time. When cracks are found on the surface of the concrete block, the pressure value of the concrete block is recorded to obtain the critical pressure value of the tested concrete. By providing a protective cover 34, it is avoided that the debris emitted from the concrete surface during the pressure test can injure people, thereby ensuring the personal safety of the test personnel to a certain extent.

[0138] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A concrete pressure resistance testing device, comprising a control box (1) and a control device (2), wherein the control device (2) is detachably fixedly connected to the control box (1), a bottom plate (3) and a top plate (4) are arranged on the side of the control box (1), and the top plate (4) and the bottom plate (3) are symmetrically arranged on the control box (1), characterized in that: include: A test groove (5) is provided on the surface of the bottom plate (3) close to the top plate (4) and is used for placing a concrete block to be tested; A first clamping portion, located in the test slot (5) and electrically connected to the control device (2), wherein a plurality of first clamping portions are provided and the plurality of first clamping portions are evenly distributed in the test slot (5) and are used to clamp and fix the bottom of the concrete block to be tested; A bearing mechanism, arranged on the top plate (4) and electrically connected to the control device (2); There are two drive parts, and the two drive parts are symmetrically arranged on the supporting mechanism, and the drive parts are electrically connected to the control device (2); There are two test parts, and the two test parts are symmetrically arranged on the supporting mechanism, and the two test parts are respectively matched with adjacent driving parts, and the test parts are electrically connected to the control device (2); The resistance part is arranged on the bearing mechanism and is electrically connected to the control device (2), and is used to cooperate with the testing part to switch between the dynamic pressure test and the static pressure test of the concrete block by the testing part; A monitoring unit, arranged on the bottom plate (3) and electrically connected to the control device (2), for monitoring the state of the concrete block under test; The first clamping portion comprises: A plurality of first electric push rods (6) are evenly distributed in the test slot (5), the first electric push rods (6) are fixedly connected to the bottom plate (3), and the first electric push rods (6) are electrically connected to the control device (2); A first clamping plate (7) is arranged on the first electric push rod (6) and is fixedly connected to the first electric push rod (6); The carrying mechanism comprises: A sliding groove (8) is formed through the top plate (4); A test cover (9) is disposed on the top plate (4) and is slidably connected to the sliding slot (8), and a center line of the test cover (9) coincides with a center line of the test slot (5); A rectangular cover (10) is arranged on the test cover (9) and is fixedly connected to the test cover (9), wherein the center line of the rectangular cover (10) coincides with the center line of the test cover (9); There are two ear plates (11), and the two ear plates (11) are symmetrically arranged on two side surfaces of the rectangular cover (10); There are two power parts, and the two power parts are symmetrically arranged on the top plate (4), and the power parts are electrically connected to the control device (2) and are used to adjust the distance between the test part and the concrete to be tested; A second clamping portion is located in the rectangular cover (10), and a plurality of the second clamping portions are provided, and the plurality of second clamping portions are evenly distributed on the inner wall of the rectangular cover (10), and the second clamping portion is electrically connected to the control device (2) and is used to clamp and fix the top of the concrete block to be tested; The driving unit comprises: a test motor (17) disposed on the test cover (9) and detachably fixedly connected to the test cover (9); the test motor (17) being electrically connected to the control device (2); A test shaft (18) is rotatably disposed on the test cover (9), and one end of the test shaft (18) close to the test motor (17) is fixedly connected to an output end of the test motor (17); A fixing ring (19) is sleeved on the test shaft (18) and fixedly connected to the test shaft (18); There are two toggle plates (20), and the two toggle plates (20) are fixedly arranged on the fixing ring (19), and the central angle between the two toggle plates (20) is an acute angle; A rotating plate (21) is sleeved on the test shaft (18) and is rotationally connected to the test shaft (18), and the curvature of the side of the rotating plate (21) gradually increases; A fixed rod (22) is eccentrically arranged on the rotating plate (21), and the fixed rod (22) is fixedly connected to the rotating plate (21), and is used to cooperate with the toggle plate (20) to drive the rotating plate (21) to rotate around the axis of the test shaft (18); The testing unit comprises: A fixed block (23) is disposed in the test cover (9) and fixedly connected to the inner wall of the test cover (9), and a built-in groove (24) is formed on a surface of the fixed block (23) close to the test slot (5); A return spring (25), located in the built-in groove (24) and fixedly connected to the fixed block (23); A sliding block (26), one end of which is located in the built-in groove (24), and the sliding block (26) is slidably connected to the fixed block (23); A wheel axle (27) is disposed on the sliding block (26) and is fixedly connected to the sliding block (26); A rolling wheel (28) is disposed on the wheel shaft (27) and is rotatably connected to the wheel shaft (27), and the rolling wheel (28) cooperates with the rotating plate (21) to drive the sliding block (26) to slide back and forth in the built-in groove (24); A test piece, located in the test cover (9) and fixedly connected to the sliding blocks (26) on both sides, the test piece being electrically connected to the control device (2) and used for performing pressure testing on concrete to be tested; The test piece comprises: A connecting plate (29) is located inside the test cover (9), and two ends of the connecting plate (29) are slidably connected to adjacent sliding blocks (26); A first hydraulic push rod (30) is located in the test cover (9) and is fixedly connected to the connection plate (29) near the surface of the test slot (5), and the first hydraulic push rod (30) is electrically connected to the control device (2); A test pressing block (31), located in the test cover (9) and fixedly connected to an end of the first hydraulic push rod (30) close to the test slot (5); The conflicting part comprises: A second hydraulic push rod (32) is disposed in the test cover (9) and fixedly connected to the test cover (9); A stopper (33) is located in the test cover (9) and is fixedly connected to an end of the second hydraulic push rod (32) close to the test slot (5), and is used to limit the movement of the connecting plate (29) to perform a static pressure test.

2. A concrete pressure resistance testing device according to claim 1, characterized in that: The power unit comprises: A power motor (12) is disposed on the top plate (4) and is detachably fixedly connected to the top plate (4); the power motor (12) is electrically connected to the control device (2); A power shaft (13) is rotatably disposed on the top plate (4), and one end of the power shaft (13) close to the power motor (12) is fixedly connected to an output end of the power motor (12); A test screw (14) is disposed on the ear plate (11) and is threadedly connected to the ear plate (11), and one end of the test screw (14) close to the power shaft (13) is fixedly connected to the power shaft (13), and one end of the test screw (14) away from the power motor (12) is rotatably connected to the base plate (3).

3. A concrete pressure resistance testing device according to claim 2, characterized in that: The second clamping portion comprises: A plurality of second electric push rods (15) are provided, and the plurality of second electric push rods (15) are evenly distributed in the rectangular cover (10), the second electric push rods (15) are fixedly connected to the rectangular cover (10), and the second electric push rods (15) are electrically connected to the control device (2); The second clamping plate (16) is arranged on the second electric push rod (15) and is fixedly connected to the second electric push rod (15).

4. A concrete pressure resistance testing device according to claim 3, characterized in that: The monitoring unit comprises: A protective cover (34) is disposed on the bottom plate (3) and is detachably fixedly connected to the bottom plate (3); A camera (35) is arranged on the surface of the protective cover (34) and is detachably fixedly connected to the protective cover (34). The camera (35) is electrically connected to the control device (2) and is used to monitor the state of the concrete block under test.

Images