Bridge concrete bearing capacity testing device

Abstract

The utility model discloses a bridge concrete bearing capacity testing device which comprises a base and a top plate, a pressing assembly is installed on the top plate, the pressing assembly comprises a screw rod and a rotating plate, a reading assembly is installed on the top plate and comprises a magnifying lens and scale marks, a fixing assembly is installed at the bottom end of the screw rod, and the magnifying lens is installed on the fixing assembly. The fixing assembly comprises a clamping sleeve and a first spring, an extrusion assembly is installed at the bottom of the clamping sleeve and comprises a pressing plate and a guide rod, the bridge concrete bearing capacity testing device can limit and protect a broken bridge concrete block, broken blocks of the bridge concrete block are prevented from splashing outwards, and then the working safety of personnel is guaranteed; when the bridge concrete block slightly deforms, the deformation amount is amplified, so that personnel can accurately know the actual maximum bearing strength of the bridge concrete block, the accuracy and reliability of a test result are guaranteed, and the bridge concrete bearing capacity testing device is suitable for testing the bearing capacity of bridge concrete.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete bearing capacity testing, in particular to a bridge concrete bearing capacity testing device. Background Art

[0002] In order to ensure the structural safety of the bridge, it is often necessary to test the bearing capacity of the concrete on the bridge. The utility model patent with patent application number CN202120887847.1 discloses a concrete compressive performance testing device. The concrete test block is placed on the bearing plate, and the drive motor is started. The output shaft of the drive motor drives the gear to rotate, and the gear drives the first rack and the second rack to move. The first rack and the second rack drive the positioning rod and the positioning plate to move through the connecting rod, so as to position the concrete test block. The positions of different concrete test blocks are always kept the same, thereby improving the accuracy of detecting the compressive strength of concrete. According to the technical solution disclosed by the utility model, when the existing concrete bearing capacity testing equipment is used, on the one hand, when the concrete is suddenly broken during the strength test, it is easy to cause the broken concrete to splash, which is not conducive to ensuring the safety of personnel. On the other hand, when the concrete is slightly deformed after being subjected to the critical pressure, it is easy to deform inconspicuously and cause personnel to be unable to detect, which is not conducive to ensuring the accuracy and reliability of the strength test of the concrete.

[0003] Therefore, how to design a bridge concrete bearing capacity testing device has become our current problem to be solved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a bridge concrete bearing capacity testing device to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable design and is relatively convenient to use, and is suitable for use in bridge concrete bearing capacity testing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bridge concrete bearing capacity testing device, comprising a base and a top plate, a pressing assembly is installed on the top plate, the pressing assembly comprises a screw and a rotating plate, a reading assembly is installed on the top plate, the reading assembly comprises a magnifying glass and a scale mark, a fixing assembly is installed on the bottom end of the screw, the fixing assembly comprises a sleeve and a spring, an extrusion assembly is installed on the bottom of the sleeve, the extrusion assembly comprises a pressure plate and a guide rod, a limiting assembly is installed on the top of the base, the limiting assembly comprises a ring sleeve and a clamping ring, a lifting assembly is installed on one side of the ring sleeve, the lifting assembly comprises a sliding sleeve and a slider.

[0006] Furthermore, a support plate is welded to the top of the base, the bottom of the top plate is welded to the top of the support plate, a screw sleeve is welded to the bottom of the top plate, the top end of the screw is welded to the bottom of the rotating plate, and the bottom end of the screw passes through the top plate and the screw sleeve in sequence through a thread and extends to the bottom of the screw sleeve.

[0007] Furthermore, the scale mark is opened on the outer side of the screw rod, and the magnifying glass is installed on the top of the top plate by bolts.

[0008] Furthermore, the ferrule is welded to the bottom end of the screw, the pressure plate is clamped on the inner wall of the bottom of the ferrule, the top of the pressure plate is connected to the inner wall of the top of the ferrule through a spring, and the spring is evenly distributed on the pressure plate.

[0009] Furthermore, the top end of the guide rod is welded to the bottom of the pressure plate, the bottom end of the guide rod passes through the sleeve and extends to the bottom of the sleeve, a pressure block is welded to the bottom end of the guide rod, a bridge concrete block is placed on the top of the base, and the bottom of the pressure block is stuck on the top of the bridge concrete block.

[0010] Furthermore, the ring sleeve is placed on the top of the base, the ring sleeve is arranged on the outside of the bridge concrete block, the bottom of the clamping ring is clamped on the inside of the ring sleeve, and the bottom of the clamping ring is connected to the inner wall of the bottom of the ring sleeve through spring 2.

[0011] Furthermore, the top of the clamping ring extends to the top of the ring sleeve, a baffle is welded on the outer side of the guide rod, and the bottom of the baffle is clamped on the top of the clamping ring.

[0012] Furthermore, the sliding sleeve is welded to one side of the ring sleeve, the bottom of the sliding sleeve is connected to the inner side of the ring sleeve, the sliding block is clamped on the inner side of the sliding sleeve, and the bottom of the sliding sleeve and the inner side of the ring sleeve are both filled with hydraulic oil.

[0013] Beneficial effects: 1. When the bridge concrete bearing capacity testing device is working, when the bridge concrete block is squeezed beyond the critical value of the maximum pressure it can withstand, the bridge concrete block will suddenly break into pieces. The broken bridge concrete block will be limited and protected by the ring sleeve, the clamping ring and the baffle to prevent the fragments of the bridge concrete block from splashing outward, thereby effectively ensuring the work safety of personnel.

[0014] 2. When the bridge concrete bearing capacity test device is in use, a bridge concrete block is collected on the bridge, and the bridge concrete block is placed on the top of the base, and then the ring sleeve is placed on the top of the base, and then the rotating plate is rotated, the rotating plate drives the screw to rotate, and the screw moves downward on the inner side of the top plate and the screw sleeve through the thread, and the screw drives the clamping sleeve to move downward, and the spring in the clamping sleeve squeezes the pressing plate, and the pressing plate drives the guide rod and the pressing block to move downward until the pressing block is clamped on the top of the bridge concrete block, and the pressing block no longer moves downward, so that the clamping ring no longer moves downward, and the slider in the sliding sleeve no longer moves upward. Check the scale mark through a magnifying glass and record it. Record the initial value, then rotate the rotating plate, the screw drives the sleeve to compress the spring downward, until the bridge concrete block is deformed due to the pressure of the pressure block exceeding its critical value, causing the pressure block to move downward, the hydraulic oil in the collar enters the inner side of the sleeve, and the slider moves upward. Check the value of the scale mark on the screw at this time, and the maximum bearing strength of the bridge concrete block is obtained after subtracting the initial value. When the bridge concrete block is slightly deformed, the deformation amount can be amplified, so that personnel can accurately know the actual maximum bearing strength of the bridge concrete block, thereby ensuring the accuracy and reliability of the test results.

[0015] 3. The bridge concrete bearing capacity testing device is reasonably designed, efficient and convenient to use, and is suitable for testing the bearing capacity of bridge concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a bridge concrete bearing capacity testing device of the utility model;

[0017] Figure 2 This is a cross-sectional view of a barrel of a bridge concrete bearing capacity testing device of the utility model;

[0018] Figure 3 This is a structural schematic diagram of a ring sleeve of a bridge concrete bearing capacity testing device of the utility model;

[0019] In the figure: 1. base; 2. top plate; 3. support plate; 4. screw; 5. rotating plate; 6. scale mark; 7. magnifying glass; 8. screw sleeve; 9. clamping sleeve; 10. guide rod; 11. pressure plate; 12. spring one; 13. pressure block; 14. bridge concrete block; 15. ring sleeve; 16. retaining ring; 17. spring two; 18. baffle; 19. sliding sleeve; 20. slider. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figures 1 to 3 The utility model provides a technical solution: a bridge concrete bearing capacity testing device, including a base 1 and a top plate 2, a pressing assembly is installed on the top plate 2, the pressing assembly includes a screw 4 and a rotating plate 5, a reading assembly is installed on the top plate 2, the reading assembly includes a magnifying glass 7 and a scale mark 6, a fixing assembly is installed at the bottom end of the screw 4, the fixing assembly includes a clamping sleeve 9 and a spring 12, an extrusion assembly is installed at the bottom of the clamping sleeve 9, the extrusion assembly includes a pressing plate 11 and a guide rod 10, a limiting assembly is installed on the top of the base 1, the limiting assembly includes a ring sleeve 15 and a clamping ring 16, a lifting assembly is installed on one side of the ring sleeve 15, the lifting assembly includes a sliding sleeve 19 and a slider 20, a support plate 3 is welded on the top of the base 1, the bottom of the top plate 2 is welded to the top of the support plate 3, a screw sleeve 8 is welded on the bottom of the top plate 2, and the top of the screw 4 is welded to the rotating plate 5, the bottom end of the screw rod 4 passes through the top plate 2 and the screw sleeve 8 in sequence through the thread and extends to the bottom of the screw sleeve 8, the ring sleeve 15 is placed on the top of the base 1, the ring sleeve 15 is sleeved on the outside of the bridge concrete block 14, the bottom of the clamping ring 16 is clamped on the inner side of the ring sleeve 15, the bottom of the clamping ring 16 is connected to the inner wall of the bottom of the ring sleeve 15 through the spring 17, the top of the clamping ring 16 extends to the top of the ring sleeve 15, the outer side of the guide rod 10 is welded with a baffle 18, the bottom of the baffle 18 is clamped on the top of the clamping ring 16, when working, when the bridge concrete block 14 is squeezed beyond the critical value of the maximum pressure it can withstand, the bridge concrete block 14 suddenly collapses, and the collapsed bridge concrete block 14 is limited and protected by the ring sleeve 15, the clamping ring 16 and the baffle 18 to prevent the fragments of the bridge concrete block 14 from splashing outward, thereby effectively ensuring the work safety of personnel.

[0022] In this embodiment, the scale mark 6 is opened on the outer side of the screw 4, the magnifying glass 7 is installed on the top of the top plate 2 by bolts, the ferrule 9 is welded to the bottom end of the screw 4, the pressing plate 11 is clamped on the inner wall of the bottom of the ferrule 9, the top of the pressing plate 11 is connected to the inner wall of the top of the ferrule 9 by a spring 12, the spring 12 is evenly distributed on the pressing plate 11, the top of the guide rod 10 is welded to the bottom of the pressing plate 11, the bottom end of the guide rod 10 passes through the ferrule 9 and extends to the bottom of the ferrule 9, the bottom end of the guide rod 10 is welded with a pressing block 13, and the bottom A bridge concrete block 14 is placed on the top of the seat 1, the bottom of the pressure block 13 is stuck on the top of the bridge concrete block 14, the sliding sleeve 19 is welded to one side of the ring sleeve 15, the bottom of the sliding sleeve 19 is connected to the inner side of the ring sleeve 15, the slider 20 is stuck on the inner side of the sliding sleeve 19, and the bottom of the sliding sleeve 19 and the inner side of the ring sleeve 15 are both filled with hydraulic oil. When in use, the bridge concrete block 14 is collected on the bridge, and the bridge concrete block 14 is placed on the top of the base 1, and then the ring sleeve 15 is placed on the top of the base 1, and then the rotating plate 5 is rotated, and the rotating plate 5 drives the screw 4 to rotate The screw rod 4 moves downward on the inner side of the top plate 2 and the screw sleeve 8 through the thread, and the screw rod 4 drives the clamping sleeve 9 to move downward. The spring 12 in the clamping sleeve 9 squeezes the pressure plate 11, and the pressure plate 11 drives the guide rod 10 and the pressure block 13 to move downward until the pressure block 13 is clamped on the top of the bridge concrete block 14, and the pressure block 13 no longer moves downward, thereby making the clamping ring 16 no longer move downward, and the slider 20 in the sliding sleeve 19 no longer moves upward. Check the scale mark 6 through the magnifying glass 7, record the initial value, and then turn the rotating plate 5. The screw rod 4 drives the clamping sleeve 9 to compress the spring 12 downward until the bridge The concrete block 14 is deformed because the pressure from the pressing block 13 exceeds its critical value, causing the pressing block 13 to move downward, the hydraulic oil in the collar 15 enters the inner side of the sleeve 19, and the slider 20 moves upward. The value of the scale mark 6 on the screw rod 4 at this time is checked, and the maximum bearing strength of the bridge concrete block 14 is obtained after subtracting the initial value. When the bridge concrete block 14 is slightly deformed, the amount of deformation can be amplified, so that personnel can accurately know the actual maximum bearing strength of the bridge concrete block 14, thereby ensuring the accuracy and reliability of the test results.

[0023] When the bridge concrete bearing capacity testing device is in use, a bridge concrete block 14 is collected on the bridge, and the bridge concrete block 14 is placed on the top of the base 1, and then the ring sleeve 15 is placed on the top of the base 1, and then the rotating plate 5 is rotated, the rotating plate 5 drives the screw 4 to rotate, and the screw 4 moves downward on the inner side of the top plate 2 and the screw sleeve 8 through the thread, and the screw 4 drives the clamping sleeve 9 to move downward, and the spring 12 in the clamping sleeve 9 squeezes the pressure plate 11, and the pressure plate 11 drives the guide rod 10 and the pressure block 13 to move downward until the pressure block 13 is clamped on the top of the bridge concrete block 14, and the pressure block 13 no longer moves downward, thereby making the clamping ring 16 no longer move downward, and the slider 20 in the sliding sleeve 19 no longer move upward, the scale mark 6 is viewed through the magnifying glass 7, the initial value is recorded, and then the rotating plate 5 is rotated, and the screw 4 drives the clamping sleeve 9 to compress the spring 12 downward until the bridge concrete block 14 is compressed by the pressure block 13. The force exceeds its critical value and deforms, causing the pressure block 13 to move downward, the hydraulic oil in the sleeve 15 enters the inner side of the sleeve 19, and the slider 20 moves upward. Then check the value of the scale mark 6 on the screw 4 at this time. After subtracting the initial value, it is the maximum bearing strength of the bridge concrete block 14. When the bridge concrete block 14 is slightly deformed, the amount of deformation can be amplified, so that personnel can accurately know the actual maximum bearing strength of the bridge concrete block 14, and ensure the accuracy and reliability of the test results. When the bridge concrete block 14 is squeezed beyond the critical value of the maximum pressure it can withstand, the bridge concrete block 14 suddenly breaks. The broken bridge concrete block 14 is limited and protected by the sleeve 15, the retaining ring 16 and the baffle 18 to prevent the fragments of the bridge concrete block 14 from splashing outward, thereby effectively ensuring the work safety of personnel.

[0024] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bridge concrete bearing capacity testing device, comprising a base (1) and a top plate (2), wherein a pressing assembly is mounted on the top plate (2), wherein the pressing assembly comprises a screw rod (4) and a rotating plate (5), and wherein: A reading assembly is mounted on the top plate (2), the reading assembly comprising a magnifying glass (7) and a scale mark (6); a fixing assembly is mounted on the bottom end of the screw rod (4), the fixing assembly comprising a clamping sleeve (9) and a spring (12); an extrusion assembly is mounted on the bottom of the clamping sleeve (9), the extrusion assembly comprising a pressing plate (11) and a guide rod (10); a limiting assembly is mounted on the top of the base (1), the limiting assembly comprising a ring sleeve (15) and a clamping ring (16); a lifting assembly is mounted on one side of the ring sleeve (15), the lifting assembly comprising a sliding sleeve (19) and a sliding block (20).

2. A bridge concrete bearing capacity testing device according to claim 1, characterized in that: A support plate (3) is welded to the top of the base (1), the bottom of the top plate (2) is welded to the top of the support plate (3), a screw sleeve (8) is welded to the bottom of the top plate (2), the top end of the screw rod (4) is welded to the bottom of the rotating plate (5), and the bottom end of the screw rod (4) passes through the top plate (2) and the screw sleeve (8) in sequence through a thread and extends to the bottom of the screw sleeve (8).

3. A bridge concrete bearing capacity testing device according to claim 2, characterized in that: The scale mark (6) is arranged on the outer side of the screw rod (4), and the magnifying glass (7) is installed on the top of the top plate (2) by means of bolts.

4. A bridge concrete bearing capacity testing device according to claim 3, characterized in that: The clamping sleeve (9) is welded to the bottom end of the screw rod (4), the pressing plate (11) is clamped on the inner wall of the bottom of the clamping sleeve (9), the top of the pressing plate (11) is connected to the inner wall of the top of the clamping sleeve (9) through a spring (12), and the spring (12) is evenly distributed on the pressing plate (11).

5. A bridge concrete bearing capacity testing device according to claim 1, characterized in that: The top end of the guide rod (10) is welded to the bottom of the pressure plate (11), the bottom end of the guide rod (10) passes through the clamping sleeve (9) and extends to the bottom of the clamping sleeve (9), a pressure block (13) is welded to the bottom end of the guide rod (10), a bridge concrete block (14) is placed on the top of the base (1), and the bottom of the pressure block (13) is clamped on the top of the bridge concrete block (14).

6. A bridge concrete bearing capacity testing device according to claim 5, characterized in that: The ring sleeve (15) is placed on the top of the base (1), and the ring sleeve (15) is sleeved on the outside of the bridge concrete block (14). The bottom of the clamping ring (16) is clamped on the inside of the ring sleeve (15), and the bottom of the clamping ring (16) is connected to the inner wall of the bottom of the ring sleeve (15) through a spring 2 (17).

7. A bridge concrete bearing capacity testing device according to claim 6, characterized in that: The top of the clamping ring (16) extends to the top of the ring sleeve (15), and a baffle (18) is welded to the outer side of the guide rod (10), and the bottom of the baffle (18) is clamped on the top of the clamping ring (16).

8. A bridge concrete bearing capacity testing device according to claim 7, characterized in that: The sliding sleeve (19) is welded to one side of the annular sleeve (15), the bottom of the sliding sleeve (19) is connected to the inner side of the annular sleeve (15), the sliding block (20) is clamped on the inner side of the sliding sleeve (19), and the bottom of the sliding sleeve (19) and the inner side of the annular sleeve (15) are both filled with hydraulic oil.

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