Dynamic sounding detection device for foundation bearing capacity

Abstract

The utility model belongs to the field of detection, particularly relates to a dynamic sounding detection device for foundation bearing capacity, and aims to solve the problems that a large amount of manpower is consumed, the labor intensity is increased, the detection efficiency is reduced, the construction speed is influenced and the use is inconvenient due to the fact that a drop hammer is lifted manually in the detection process in the prior art. According to the scheme, the device comprises a bottom plate, a supporting frame is fixedly arranged at the top of the bottom plate, and a through opening is formed in the center of the top of the bottom plate; the lifting auxiliary mechanism is arranged on the supporting frame and used for assisting the drop hammer in ascending and descending; and the movable fixing mechanism is arranged on the bottom plate and used for fixing or moving the bottom plate. When the drop hammer detection device is used and in the detection process, the drop hammer does not need to be lifted up manually, consumption of a large amount of manpower is avoided, the labor intensity is increased, the detection efficiency is improved, and the construction speed is prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of detection, in particular to a dynamic penetration detection device for base bearing capacity. Background Art

[0002] The bearing capacity of the foundation soil is the bearing potential of the foundation soil per unit area as the load increases. It is a comprehensive term for evaluating the stability of the foundation. It should be pointed out that the bearing capacity of the foundation is a practical professional term proposed for the design of foundations to facilitate the evaluation of foundation strength and stability. It does not refer to the basic properties of the soil.

[0003] After searching, the patent with the authorization announcement number CN215715180U proposes a cone dynamic penetration device for detecting the bearing capacity of the foundation. The technical solution has the following problems:

[0004] When in use, the bearing capacity of the foundation can be measured by hitting the probe rod with a drop hammer. During the detection process, the drop hammer is lifted manually, which not only consumes a lot of manpower and increases the labor intensity, but also reduces the efficiency of the detection, affects the construction speed, and is inconvenient to use;

[0005] In view of the above problems, the present utility model document proposes a dynamic penetration detection device for base bearing capacity. Utility Model Content

[0006] The utility model provides a dynamic probing detection device for foundation bearing capacity, which solves the shortcomings of the prior art that during the detection process, the drop hammer is lifted manually, which not only consumes a large amount of manpower and increases the labor intensity, but also reduces the detection efficiency, affects the construction speed, and is inconvenient to use.

[0007] The utility model provides the following technical solutions:

[0008] A dynamic penetration detection device for base bearing capacity, comprising:

[0009] A bottom plate, a support frame is fixedly arranged on the top of the bottom plate, a through hole is opened at the center of the top of the bottom plate, a probe is passed through the inside of the through hole, a feeler rod is fixedly arranged on the top of the probe, and a drop weight matched with the feeler rod is arranged on the top of the feeler rod;

[0010] A lifting auxiliary mechanism, which is arranged on the support frame and is used to assist the drop hammer in rising and moving downward;

[0011] The movable fixing mechanism is arranged on the bottom plate and is used for fixing or moving the bottom plate.

[0012] In one possible design, the lifting auxiliary mechanism includes a fixed seat, which is fixedly arranged on the top of the support frame. The interior of the fixed seat is rotatably connected to a winding roller through a bearing. A motor is fixedly installed on the top of the support frame. The output end of the motor is fixed to one end of the winding roller through a coupling. Two winding grooves are provided on the outer wall of the winding roller, and a rope is wound around the outer wall of each of the winding grooves.

[0013] In a possible design, the ends of the two ropes away from the winding roller both pass through the top of the support frame and extend to the bottom of the support frame, the ends of the two ropes away from the winding roller are fixed with fixed plates, an electromagnet that is magnetically attracted to the drop hammer is fixedly installed between the two fixed plates, and a fixed telescopic rod is fixedly installed between the top of the electromagnet and the bottom side of the inner wall of the support frame.

[0014] In a possible design, a counter is provided on the outer wall of the drop hammer, two symmetrical limit rods are fixedly provided on the outer wall of the drop hammer, and limit grooves for sliding connection of the limit rods are provided on both sides of the inner wall of the support frame.

[0015] In a possible design, the movable fixing mechanism includes four movable wheels, and the four movable wheels are symmetrically fixed on the bottom of the base plate in pairs. The bottom of the base plate is symmetrically fixed with limiting telescopic rods in pairs, and the bottom ends of the four limiting telescopic rods are fixed with the same support plate.

[0016] In a possible design, the top of the support plate is rotatably connected to a threaded rod via a rotating shaft, the top of the threaded rod passes through the bottom of the base plate and extends to the top of the base plate, the outer wall of the threaded rod is connected to the internal thread of the base plate, and a plurality of anti-slip cones are fixedly provided on the bottom side of the support plate.

[0017] In a possible design, a thread groove is provided on the top of the base plate, the outer wall of the feeler rod is slidably connected to a limiting cylinder, and the outer wall of the limiting cylinder is provided with an external thread threadedly connected to the thread groove.

[0018] When the support plate is in contact with the ground, the movable wheel will separate from the ground, and then the device can be supported by the support plate to enhance the positioning firmness. In addition, multiple anti-skid cones on the bottom side of the support plate will be inserted into the ground, which is conducive to achieving a strong anti-skid effect and improving the stability of the device. At the same time, during the movement of the support plate, the limit telescopic rod fixed on the top will be telescoped accordingly, which can play a role of support and limit, thereby improving The stability of the support plate when it moves achieves the effect of convenient movement and fixation of the device, increasing convenience. When the bottom plate is fixed, the probe and the feeler rod are passed through the through hole opened in the bottom plate to make the probe touch the ground, and then the limit cylinder is slidably sleeved on the outer wall of the feeler rod, and the outer thread provided on the outer wall of the limit cylinder is connected with the thread of the thread groove on the top of the bottom plate, and then the limit cylinder thread can be installed on the bottom plate, thereby improving the installation firmness of the limit cylinder. The limit cylinder can play a limiting role when the feeler rod slides, so that the feeler rod and the probe are always in a vertical state, preventing the feeler rod and the probe from being offset and distorted during the touch detection, which affects the accuracy of the detection;

[0019] When the probe rod and the probe are vertically limited, the motor is controlled by the controller to run, and the motor drives the winding roller fixed at the output end to rotate clockwise. The winding roller rotates inside the fixed seat through the bearing, which is conducive to improving stability. The winding roller will drive the rope wound in the winding groove to reel up. At this time, the rope will drive the fixed plate fixed at one end and the electromagnet between the fixed plates to move upward, and the fixed telescopic rod fixed on the top of the electromagnet will follow the telescopic rod, which is conducive to playing a better supporting and limiting role and improving the stability of the electromagnet movement. Since the electromagnet is in an energized state at this time, it will drive the bottom magnetically attracted drop hammer to move upward, and the limit rod fixed on the outer wall of the drop hammer will slide in the corresponding limit groove, which is conducive to playing a role of mobile limit for the drop hammer and enhancing stability. When the drop hammer rises to a certain height, the electromagnet current is disconnected by the controller, so that the electromagnet is in a power-off state, and then the bottom drop hammer will automatically fall and move downward in the form of free fall, and finally the drop hammer will hit and contact the corresponding probe rod. Due to gravity, the probe rod and the probe will enter the underground, achieving the purpose of probing.

[0020] When probing is needed again, the controller controls the motor to rotate counterclockwise, which in turn causes the rope to drive the electromagnet downward. After the electromagnet contacts the drop hammer, the controller controls the electromagnet to be energized, the electromagnet's magnetic field is enhanced, the suction force is increased, and the drop hammer can be stably magnetically attracted and driven to move up to the specified height again, thereby facilitating another probing test. By repeating the above operation many times, the specified test requirements can be completed. During the detection process, the drop hammer no longer needs to be lifted manually, which avoids consuming a lot of manpower and increasing the degree of labor, improves the efficiency of detection, prevents the construction speed from being affected, and is easy to use. At the same time, each time the drop hammer collides with the probe rod, the counter on the outer wall of the drop hammer will generate an induction automatic count, which is beneficial to improve the accuracy of the detection calculation. Then, through multiple probing tests and observing the depth of the probe rod and the probe entering the ground, the bearing capacity of the foundation can be tested, thereby improving convenience and usability.

[0021] In the utility model, the dynamic penetration detection device for base bearing capacity can achieve the effect of automatic penetration through the lifting auxiliary mechanism. In the detection process, the drop hammer no longer needs to be lifted manually, which avoids consuming a lot of manpower, increases the degree of labor, and improves the efficiency of detection.

[0022] In the utility model, the dynamic penetration detection device for base bearing capacity can support the device through a mobile fixing mechanism, thereby enhancing the positioning firmness, and at the same time, the device can be easily moved and fixed, thereby increasing convenience;

[0023] In the utility model, during the detection process, the drop hammer no longer needs to be lifted manually, which avoids consuming a large amount of manpower and increasing the degree of labor, improves the efficiency of detection, prevents affecting the construction speed, and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 One of the three-dimensional structural schematic diagrams of a dynamic penetration detection device for base bearing capacity provided by an embodiment of the utility model;

[0025] Figure 2 A second three-dimensional structural schematic diagram of a dynamic penetration detection device for base bearing capacity provided by an embodiment of the utility model;

[0026] Figure 3 A schematic diagram of the front structure of a support frame for a dynamic penetration detection device for base bearing capacity provided by an embodiment of the utility model;

[0027] Figure 4 A schematic diagram of the disassembled structure of a limit cylinder of a dynamic penetration detection device for base bearing capacity provided in an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1. Bottom plate; 2. Support frame; 3. Fixed seat; 4. Winding roller; 5. Winding slot; 6. Rope; 7. Motor; 8. Fixed plate; 9. Electromagnet; 10. Fixed telescopic rod; 11. Limiting slot; 12. Limiting rod; 13. Drop hammer; 14. Counter; 15. Through port; 16. Probe rod; 17. Probe; 18. Threaded groove; 19. Limiting cylinder; 20. Moving wheel; 21. Limiting telescopic rod; 22. Support plate; 23. Anti-slip cone; 24. Threaded rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Example 1

[0032] Please refer to Figure 1-Figure 4 , a detection device, comprising:

[0033] A bottom plate 1, a support frame 2 is fixedly arranged on the top of the bottom plate 1, a through hole 15 is opened at the center of the top of the bottom plate 1, a probe 17 is passed through the through hole 15, a feeler rod 16 is fixedly arranged on the top of the probe 17, and a drop weight 13 adapted to the feeler rod 16 is arranged on the top of the feeler rod 16;

[0034] A lifting auxiliary mechanism, which is arranged on the support frame 2 and is used to assist the drop hammer 13 in rising and moving downward;

[0035] The movable fixing mechanism is arranged on the base plate 1 and is used to fix or move the base plate 1 .

[0036] The above technical solution can achieve the effect of automatic detection through the lifting auxiliary mechanism. During the detection process, the drop hammer 13 no longer needs to be lifted manually, which avoids consuming a lot of manpower, increases the degree of labor, and improves the efficiency of detection. The device can be supported by a mobile fixing mechanism to enhance the positioning firmness. At the same time, the device can be easily moved and fixed, which increases the convenience of the technical effect.

[0037] Please refer to Figure 1-Figure 3 The lifting auxiliary mechanism includes a fixed seat 3, which is fixedly arranged on the top of the support frame 2. The interior of the fixed seat 3 is rotatably connected to a winding roller 4 through a bearing. A motor 7 is fixedly installed on the top of the support frame 2. The output end of the motor 7 is fixed to one end of the winding roller 4 through a coupling. Two winding grooves 5 are provided on the outer wall of the winding roller 4, and a rope 6 is wound around the outer wall of each winding groove 5.

[0038] Please refer to Figure 1-Figure 3 The ends of the two ropes 6 away from the winding roller 4 pass through the top of the support frame 2 and extend to the bottom of the support frame 2. A fixed plate 8 is fixedly installed on the ends of the two ropes 6 away from the winding roller 4. An electromagnet 9 that is magnetically attracted to the drop hammer 13 is fixedly installed between the two fixed plates 8. A fixed telescopic rod 10 is fixedly installed between the top of the electromagnet 9 and the bottom side of the inner wall of the support frame 2.

[0039] The above technical scheme can achieve the goal of controlling the motor 7 to run through the controller, driving the winding roller 4 to rotate clockwise, and the winding roller 4 rotates inside the fixed seat 3 through the bearing, which is beneficial to improve the stability, and the winding roller 4 will drive the rope 6 wound in the winding groove 5 to reel up. At this time, the rope 6 will drive the fixed plate 8 fixed at one end and the electromagnet 9 between the fixed plate 8 to move upward, and at the same time, the fixed telescopic rod 10 fixed on the top of the electromagnet 9 will follow the telescopic, which is beneficial to play a better supporting and limiting role, and then can drive the drop hammer 13 to rise to a certain height, which is convenient for the probing operation. When the probing is needed again, the motor 7 is controlled by the controller to rotate in the reverse direction. The hour hand rotates, which in turn causes the rope 6 to drive the electromagnet 9 to move downward. After the electromagnet 9 contacts the drop hammer 13, the controller controls the electromagnet 9 to be energized, and the magnetic field of the electromagnet 9 is enhanced, and the suction force is increased, so that the drop hammer 13 can be stably magnetically attracted and driven to move up to the specified height again, thereby facilitating another probe test. The above operation is repeated many times to complete the specified test requirements. In the process of detection, the drop hammer 13 no longer needs to be lifted manually, which avoids consuming a lot of manpower, increasing the degree of labor, improving the efficiency of detection, preventing the construction speed from being affected, and facilitating the use of technical effects.

[0040] Please refer to Figure 1 and Figure 3 A counter 14 is arranged on the outer wall of the drop hammer 13, two symmetrical limit rods 12 are fixedly arranged on the outer wall of the drop hammer 13, and limit grooves 11 for sliding connection of the limit rods 12 are opened on both sides of the inner wall of the support frame 2.

[0041] The above technical scheme can achieve the effect of disconnecting the current of the electromagnet 9 through the controller, so that the electromagnet 9 is in a power-off state, and then the drop hammer 13 at the bottom will automatically fall and move downward in the form of free fall. At the same time, the drop hammer 13 will drive the limit rod 12 fixed on the outer wall to slide in the corresponding limit groove 11, which is beneficial to the mobile limit of the drop hammer 13 and enhance the stability. Every time the drop hammer 13 collides and contacts with the probe rod 16, the counter 14 on the outer wall of the drop hammer 13 will generate an induction automatic count, which is beneficial to improve the accuracy of the detection calculation and the technical effect.

[0042] Please refer to Figure 2 and Figure 4The movable fixing mechanism includes four movable wheels 20, and the four movable wheels 20 are fixedly installed at the bottom of the base plate 1 in pairs. The bottom of the base plate 1 is fixedly provided with limited telescopic rods 21 in pairs. The bottom ends of the four limited telescopic rods 21 are fixedly provided with the same support plate 22.

[0043] Please refer to Figure 2 The top of the support plate 22 is rotatably connected to a threaded rod 24 via a rotating shaft. The top of the threaded rod 24 passes through the bottom of the base plate 1 and extends to the top of the base plate 1. The outer wall of the threaded rod 24 is connected to the internal thread of the base plate 1. A plurality of anti-slip cones 23 are fixedly arranged on the bottom side of the support plate 22.

[0044] The above technical scheme can achieve the goal of moving the device to a suitable probing detection position through the moving wheels 20 installed at the bottom of the base plate 1, and then turning the handle to drive the fixed threaded rod 24 to rotate, and utilizing the threaded connection between the threaded rod 24 and the inside of the base plate 1 to drive the support plate 22 rotatably connected at the bottom end to move downward. When the support plate 22 contacts the supporting ground, the moving wheels 20 will separate from the ground, and then the device can be supported by the support plate 22 to enhance the positioning firmness, and the multiple anti-slip cones 23 on the bottom side of the support plate 22 will be inserted into the ground, which is conducive to achieving a strong anti-slip effect and improving the stability of the device. At the same time, during the movement of the support plate 22, the limiting telescopic rod 21 fixed on the top will expand and contract accordingly, and then it can play a role of supporting and limiting, thereby improving the stability of the support plate 22 when moving, thereby achieving the effect of convenient movement and fixation of the device, and increasing the convenience technical effect.

[0045] The present application can be used in the field of foundation bearing capacity detection, and can also be used in other fields applicable to the present application.

[0046] The feeler rod 16 and the probe 17 are the same as the feeler rod 1 and the probe 2 mentioned in the Chinese patent authorization announcement No. CN215715180U, the electromagnet 9 is MQ8-Z45B, and the counter 14 is ZNJC2-6E2R-M48, and their structure and mechanism are not described in detail here;

[0047] Example 2

[0048] refer to Figure 4 , improved on the basis of the first embodiment: a dynamic penetration detection device for foundation bearing capacity, which is applied to the field of foundation bearing capacity detection;

[0049] A thread groove 18 is provided on the top of the bottom plate 1 , and a limiting cylinder 19 is slidably connected to the outer wall of the feeler rod 16 . The outer wall of the limiting cylinder 19 is provided with an external thread that is threadably connected to the thread groove 18 .

[0050] The above technical scheme can achieve the goal of sliding the limit tube 19 onto the outer wall of the feeler rod 16, and utilizing the external thread provided on the outer wall of the limit tube 19 to be threadedly connected with the threaded groove 18 at the top of the base plate 1, so that the limit tube 19 can be threadedly installed on the base plate 1, thereby improving the installation firmness of the limit tube 19. The limit tube 19 can play a limiting role on the sliding of the feeler rod 16, so that the feeler rod 16 and the probe 17 are always in a vertical state, thereby preventing the feeler rod 16 and the probe 17 from being offset and distorted during the feeler detection, which affects the accuracy of the detection and the technical effect.

[0051] However, as is well known to those skilled in the art, the working principles and wiring methods of the motor 7, electromagnet 9 and counter 14 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0052] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A dynamic penetration detection device for base bearing capacity, characterized in that: include: A base plate (1), a support frame (2) is fixedly arranged on the top of the base plate (1), a through opening (15) is opened at the center of the top of the base plate (1), a probe (17) passes through the inside of the through opening (15), a feeler rod (16) is fixedly arranged on the top of the probe (17), and a drop weight (13) adapted to the feeler rod (16) is arranged on the top of the feeler rod (16); A lifting auxiliary mechanism, the lifting auxiliary mechanism is arranged on the support frame (2) and is used to assist the drop hammer (13) to rise and move downward; A movable fixing mechanism is arranged on the base plate (1) and is used to fix or move the base plate (1).

2. A dynamic penetration detection device for base bearing capacity according to claim 1, characterized in that: The lifting auxiliary mechanism comprises a fixed seat (3), the fixed seat (3) is fixedly arranged on the top of the support frame (2), the interior of the fixed seat (3) is rotatably connected to a winding roller (4) via a bearing, a motor (7) is fixedly installed on the top of the support frame (2), the output end of the motor (7) is fixed to one end of the winding roller (4) via a coupling, the outer wall of the winding roller (4) is provided with two winding grooves (5), and the outer wall of each of the winding grooves (5) is wound with a rope (6).

3. A dynamic penetration detection device for base bearing capacity according to claim 2, characterized in that: The ends of the two ropes (6) away from the winding roller (4) pass through the top of the support frame (2) and extend to the bottom of the support frame (2); the ends of the two ropes (6) away from the winding roller (4) are fixedly provided with a fixing plate (8); an electromagnet (9) magnetically attracted to the drop weight (13) is fixedly installed between the two fixing plates (8); and a fixed telescopic rod (10) is fixedly provided between the top of the electromagnet (9) and the bottom side of the inner wall of the support frame (2).

4. A dynamic penetration detection device for base bearing capacity according to claim 3, characterized in that: The outer wall of the drop hammer (13) is provided with a counter (14), the outer wall of the drop hammer (13) is fixedly provided with two symmetrical limit rods (12), and both sides of the inner wall of the support frame (2) are provided with limit grooves (11) for sliding connection of the limit rods (12).

5. A dynamic penetration detection device for base bearing capacity according to claim 1, characterized in that: The movable fixing mechanism comprises four movable wheels (20), the four movable wheels (20) being fixedly mounted on the bottom of the base plate (1) in pairs, and the bottom of the base plate (1) being fixedly provided with limited telescopic rods (21) in pairs, and the bottom ends of the four limited telescopic rods (21) being fixedly provided with a same support plate (22).

6. A dynamic penetration detection device for base bearing capacity according to claim 5, characterized in that: The top of the support plate (22) is rotatably connected to a threaded rod (24) via a rotating shaft, the top end of the threaded rod (24) passes through the bottom of the base plate (1) and extends to the top of the base plate (1), the outer wall of the threaded rod (24) is connected to the internal thread of the base plate (1), and a plurality of anti-slip cones (23) are fixedly provided on the bottom side of the support plate (22).

7. A dynamic penetration detection device for base bearing capacity according to claim 1, characterized in that: A thread groove (18) is provided on the top of the bottom plate (1), the outer wall of the feeler rod (16) is slidably connected to a limiting cylinder (19), and the outer wall of the limiting cylinder (19) is provided with an external thread that is threadably connected to the thread groove (18).

Images