Foundation bearing capacity detection device

Abstract

The invention relates to the technical field of foundation bearing capacity detection, in particular to a foundation bearing capacity detection device which comprises a detection base, a height adjusting mechanism and a guide frame, the guide frame is an inverted U-shaped frame and is erected at the rectangular through hole of the detection base; a sounding assembly is mounted on the guide frame in a sliding manner; a top plate is mounted at the top of the height adjusting mechanism; a hammering mechanism for hammering the sounding assembly is mounted on the lower surface of the top plate; the sounding assembly comprises a rod body, a hit disc arranged at the top end of the rod body, and a conical head arranged at the bottom end of the rod body; the rod body is formed by splicing a plurality of detachable feeler levers end to end, the number of the detachable feeler levers can be increased or decreased according to detection requirements, then the length of the rod body can be adjusted, the detection requirements of foundations with different depths can be met, and the application range is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of foundation bearing capacity detection, and particularly relates to a foundation bearing capacity detection device. Background Art

[0002] The foundation refers to the soil mass or rock mass that supports the foundation under a building. The soil layers serving as the building foundation are divided into rock, gravel soil, sandy soil, silt, cohesive soil, and artificial fill. There are two types of foundations: natural foundations and artificial foundations. After the foundation is tamped, it is generally necessary to use foundation detection equipment to detect the bearing capacity of the foundation to avoid building settlement and collapse caused by unqualified indicators.

[0003] In the prior art, relevant patent applications have disclosed foundation bearing capacity detection devices. For example, the patent with the publication number CN221441463U discloses a building foundation bearing capacity detection device. The striking block generates an impact on the sounding rod and the struck block. Under the action of force, the four return springs move downward. By providing a plurality of sliding strips, the position dimensions of the plurality of sliding strips are all adapted to the position dimensions of the card slots, so that the sounding rod can move smoothly up and down in the fixed cylinder, and the sounding rod can detect the foundation.

[0004] However, the above-mentioned prior art has the following deficiencies: the length of the sounding rod is fixed, which may not be able to meet the detection requirements of foundations at different depths. Especially when it is necessary to detect a deeper foundation, the function of the device will be limited. Summary of the Invention

[0005] The main purpose of the present invention is to propose a foundation bearing capacity detection device to solve the above technical problems.

[0006] To achieve the above object, the present invention proposes a foundation bearing capacity detection device, including a detection base, a height adjustment mechanism and a guide frame installed on the top surface of the detection base; the guide frame is an inverted U-shaped frame and is erected at the position of the rectangular through hole of the detection base; a sounding assembly is slidably installed on the guide frame; a top plate is installed on the top of the height adjustment mechanism; a hammering mechanism for hammering the sounding assembly is installed on the lower surface of the top plate; the sounding assembly includes a rod body, a struck disk provided at the top end of the rod body, and a cone head provided at the bottom end of the rod body; the rod body is formed by splicing a plurality of detachable sounding rods end to end.

[0007] Preferably, a guide tube is integrally formed on the bottom surface of the cross beam of the guide frame; the cross beam of the guide frame and the guide tube are jointly provided with a through-hole penetrating up and down, and the rod body of the sounding assembly penetrates through the through-hole; a ball is rotatably installed on the inner wall of the through-hole, and the ball is in rolling contact with the rod body.

[0008] Preferably, a threaded post is integrally formed at the top end of the detachable probe rod, and a threaded hole is provided at the bottom end; the threaded posts and threaded holes of two adjacent detachable probe rods on the rod body are matched; the conical head includes a conical body and a threaded rod integrally formed on the top surface of the conical body; the threaded rod is matched with the threaded hole of the lowermost detachable probe rod of the rod body; an internally threaded tube is integrally formed on the bottom surface of the impact receiving disc; the threaded post of the uppermost detachable probe rod of the rod body is matched with the internally threaded tube.

[0009] Preferably, the hammering mechanism includes a pair of first mounting seats and a pair of second mounting seats arranged on the lower surface of the top plate; a steel wire winding disc is rotatably mounted between the two first mounting seats; a driving motor is mounted on one of the first mounting seats, and the output shaft of the driving motor is connected to the rotating shaft of the steel wire winding disc; a guide wheel is rotatably mounted between the two second mounting seats; the steel wire on the steel wire winding disc is guided through the guide wheel and then connected to an electromagnet block, and a heavy hammer is arranged below the electromagnet block; the heavy hammer can be adsorbed on the electromagnet block.

[0010] Preferably, a limiting angle plate is mounted on the lower surface of the top plate, and the limiting angle plate is L-shaped; a through hole for the steel wire to pass through is provided on the horizontal plate of the limiting angle plate; the steel wire on the steel wire winding disc is guided through the guide wheel and then passes downward through the through hole on the limiting angle plate, and then is connected to the electromagnet block; a pair of limiting columns are mounted on the lower surface of the top plate; vertical sliding grooves are provided on each limiting column; two sliding blocks are symmetrically arranged on the outer peripheral surface of the heavy hammer; the two sliding blocks are respectively slidably mounted in the sliding grooves on the two limiting columns.

[0011] Preferably, the height adjusting mechanism includes square tubes, columns and cylinders; the four square tubes are respectively vertically mounted at the four corner positions on the top surface of the detection base; the columns are slidably inserted into the inner holes of the square tubes; and the top ends of the columns are connected to the lower surface of the top plate; connecting beams are respectively welded between the two square tubes at the left end of the top surface of the detection base and between the two square tubes at the right end of the top surface; the cylinder is mounted at the central position on the top surface of the connecting beam; the piston rod of the cylinder is connected to the lower surface of the top plate.

[0012] Preferably, four extension columns are slidably mounted inside the detection base; two of them are mounted inside the left end of the detection base, and the other two are mounted inside the right end of the detection base; a driving mechanism is provided on the detection base for driving two of the extension columns to extend out from the front end surface of the detection base and driving the other two extension columns to extend out from the rear end surface of the detection base; a reinforcement mechanism is mounted at the end of the extending end of each extension column.

[0013] Preferably, the reinforcement mechanism includes a fixed block, a bottom plate, and a vertical screw rod screwed onto the fixed block; the fixed block is welded to the end of the protruding end of the extension column; a connecting sleeve is fixedly connected to the upper surface of the bottom plate; the lower end of the screw rod is rotatably installed in the connecting sleeve; a plurality of ground cones are arranged in an array on the lower surface of the bottom plate; a rotating wheel is fixedly connected to the upper end of the screw rod; a vertical guide rod is slidably inserted into the fixed block, and the lower end of the guide rod is connected to the top surface of the bottom plate.

[0014] Preferably, two guide grooves are respectively formed at the left end and the right end of the detection base; a connecting channel is formed between the two guide grooves at each end of the detection base; the driving mechanism includes a power assembly installed on the top surface of the detection base and a transmission assembly arranged in the connecting channel; a protective shell is arranged on the top surface of the detection base, and the power assembly is installed inside the protective shell; the power assembly is in transmission connection with the transmission assembly; the extension column is slidably installed in the guide groove and is driven by the transmission assembly.

[0015] Preferably, the transmission assembly in each connecting channel includes two connecting shafts, and the connecting shafts are rotatably inserted into the detection base. One connecting shaft is arranged near the front end face of the detection base, and the other connecting shaft is arranged near the rear end face of the detection base; a driving gear and a synchronous pulley are respectively arranged on each connecting shaft; a synchronous belt is jointly sleeved between the synchronous pulleys on the two connecting shafts; a side groove is formed on one side of the extension column close to the connecting shaft, and a tooth portion is arranged in the side groove; the driving gear on the connecting shaft near the front end face of the detection base meshes with the tooth portion on the extension column protruding from the front end face of the detection base; the driving gear on the connecting shaft near the rear end face of the detection base meshes with the tooth portion on the extension column protruding from the rear end face of the detection base; the power assembly includes a double-headed motor installed on the upper surface of the detection base, and rotating shafts are connected to the output ends at both ends of the double-headed motor; a first bevel gear is installed at the end of the rotating shaft away from the double-headed motor; a second bevel gear is installed at the top end of the connecting shaft near the front end face of the detection base, and the first bevel gear meshes with the second bevel gear.

[0016] Due to the adoption of the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] (1) In the present invention, since the rod body of the sounding assembly is formed by splicing a plurality of detachable sounding rods end to end, the number of detachable sounding rods can be increased or decreased according to the detection requirements, and thus the length of the rod body can be adjusted to adapt to the foundation detection requirements at different depths, expanding the scope of application.

[0018] (2) In the present invention, since a guide tube is integrally formed on the bottom surface of the cross beam of the guide frame, and a vertically penetrating guide hole is provided jointly by the cross beam of the guide frame and the guide tube for installing the rod body of the sounding assembly, and at the same time, balls are rotatably installed on the inner wall of the guide hole, and rolling contact is formed between the balls and the rod body, it can effectively guide the sounding assembly to move vertically, reduce friction and deviation, and improve the accuracy of detection.

[0019] (3) In the present invention, the height of the top plate can be flexibly adjusted by using the height adjustment mechanism. When the entire detection device needs to be transported, the height of the top plate can be lowered, thereby reducing the volume occupied by the entire device, facilitating transportation, and improving the convenience during transportation in the wild or under complex terrain conditions. When a large hammering force needs to be provided for the hammering mechanism, the height of the top plate can be increased by using the height adjustment mechanism, thereby increasing the relative height between the heavy hammer and the struck plate and increasing the impact force when the heavy hammer falls. It can meet the detection requirements of foundation at different depths.

[0020] (4) In the present invention, by installing a reinforcement mechanism at the end of the extending end of the extension column, the entire device can be stably installed on the foundation, providing the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the foundation bearing capacity detection device provided by the present invention Figure 1 ;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the foundation bearing capacity detection device provided by the present invention Figure 2 ;

[0024] Figure 3 Schematic diagram of the structure of the hammering mechanism in the present invention;

[0025] Figure 4 Schematic diagram of the structure when the sounding assembly cooperates with the guide frame in the present invention;

[0026] Figure 5 Schematic diagram of the structure of the reinforcement mechanism in the present invention;

[0027] Figure 6 Schematic diagram of the structure of the power assembly in the driving mechanism of the present invention;

[0028] Figure 7 Schematic diagram when the connection channel and the transmission component cooperate in the present invention;

[0029] Figure 8 Exploded view of the structure of the transmission component and the extension column in the present invention.

[0030] Explanation of the reference numerals in the drawings: 1. Detection base; 2. Height adjustment mechanism; 21. Square tube; 22. Column; 23. Connecting beam; 24. Cylinder; 3. Top plate; 4. Controller; 5. Hammering mechanism; 51. First mounting seat; 52. Steel wire winding disc; 53. Driving motor; 54. Second mounting seat; 55. Guide wheel; 56. Electromagnet block; 57. Weight; 58. Slide block; 59. Limit column; 510. Slide groove; 511. Limit angle plate; 6. Guide frame; 61. Guide tube; 62. Ball; 63. Guide hole; 7. Penetration detection component; 71. Struck plate; 71a. Internal thread tube; 72. Removable probe rod; 72a. Threaded column; 72b. Threaded hole; 73. Cone head; 73a. Threaded rod; 73b. Cone body; 74. Rod body; 8. Driving mechanism; 81. Protective shell; 82. Biaxial motor; 83. Rotating shaft; 84. First bevel gear; 85. Second bevel gear; 86. Coupling shaft; 87. Synchronous pulley; 88. Synchronous belt; 89. Driving gear; 9. Extension column; 91. Side groove; 92. Tooth part; 93. Strip-shaped groove; 10. Reinforcement mechanism; 101. Fixed block; 102. Screw; 103. Rotating wheel; 104. Bottom plate; 105. Connecting sleeve; 106. Guide rod; 107. Ground cone; 11. Movable wheel; 12. Guide groove; 12a. Strip-shaped protrusion; 13. Connection channel; 14. U-shaped handle. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0032] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, the descriptions involving "first", "second", etc. in the present invention are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0034] Combined with Figures 1 to 8 As shown, it is a specific embodiment of a foundation bearing capacity detection device provided by the present invention. The device includes a detection base 1, and a height adjustment mechanism 2 and a guide frame 6 installed on the top surface of the detection base 1; the guide frame 6 is an inverted U-shaped frame and is erected at the position of the rectangular through hole of the detection base 1; a sounding assembly 7 is slidably installed on the guide frame 6; a top plate 3 is installed at the top of the height adjustment mechanism 2; a hammering mechanism 5 for hammering the sounding assembly 7 is installed on the lower surface of the top plate 3; the sounding assembly 7 includes a rod body 74, a struck disk 71 provided at the top end of the rod body 74, and a cone head 73 provided at the bottom end of the rod body 74; the rod body 74 is formed by splicing a plurality of detachable exploration rods 72 end to end, so the length of the rod body 74 can be adjusted according to the detection requirements to adapt to the foundation detection requirements at different depths, expanding the scope of application.

[0035] Combined with Figure 4 As shown, a guide tube 61 is integrally formed on the bottom surface of the cross beam of the guide frame 6; the cross beam of the guide frame 6 and the guide tube 61 are jointly provided with a vertically penetrating guide hole 63, and the rod body 74 of the sounding assembly 7 penetrates through the guide hole 63; a ball 62 is rotatably installed on the inner wall of the guide hole 63, and the ball 62 is in rolling contact with the rod body 74, which can effectively guide the sounding assembly 7 to move vertically, reduce friction and deviation, and improve the accuracy of detection. By providing the ball 62, the wear of the rod body 74 can be reduced, and the service life of the device can be extended.

[0036] Combined with Figure 4As shown, a threaded post 72a is integrally formed at the top end of the detachable probe rod 72, and a threaded hole 72b is provided at the bottom end; the threaded post 72a of two adjacent detachable probe rods 72 on the rod body 74 is matched with the threaded hole 72b to form a detachable structure. Further, the conical head 73 includes a conical body 73b and a threaded rod 73a integrally formed on the top surface of the conical body 73b; the threaded rod 73a is matched with the threaded hole 72b of the lowermost detachable probe rod 72 of the rod body 74; an internally threaded tube 71a is integrally formed on the bottom surface of the impact receiving disc 71; the threaded post 72a of the uppermost detachable probe rod 72 of the rod body 74 is matched with the internally threaded tube 71a. During detection, the impact receiving disc 71 drives the entire sounding assembly 7 to move downward under the action of the hammering mechanism 5, and the conical head 73 is used to facilitate insertion into the foundation for detection. The rod body 74 is designed with multiple detachable probe rods 72 for detachable splicing, which is convenient for assembly and disassembly according to different detection depth requirements, improves the applicability of the device, and reduces the difficulty of transportation and storage.

[0037] Combined with Figure 3 As shown, the hammering mechanism 5 includes a pair of first mounting seats 51 and a pair of second mounting seats 54 provided on the lower surface of the top plate 3; a steel wire rope winding disc 52 is rotatably mounted between the two first mounting seats 51; a driving motor 53 is mounted on one of the first mounting seats 51, and the output shaft of the driving motor 53 is connected to the rotating shaft of the steel wire rope winding disc 52. The driving motor 53 is used to drive the steel wire rope winding disc 52 to rotate to wind and unwind the steel wire rope. A guide wheel 55 is rotatably mounted between the two second mounting seats 54; the steel wire rope on the steel wire rope winding disc 52 is guided by the guide wheel 55 and then connected to an electromagnet block 56, and a heavy hammer 57 is provided below the electromagnet block 56; the heavy hammer 57 can be adsorbed on the electromagnet block 56.

[0038] A limiting angle plate 511 is mounted on the lower surface of the top plate 3, and the limiting angle plate 511 is L-shaped; a through hole for the steel wire rope to pass through is opened on the horizontal plate of the limiting angle plate 511; the steel wire rope on the steel wire rope winding disc 52 is guided by the guide wheel 55 and then passes downward through the through hole on the limiting angle plate 511 and is then connected to the electromagnet block 56. The through hole on the limiting angle plate 511 facilitates the limitation of the steel wire rope, avoids the steel wire rope from detaching from the guide wheel 55 during winding and unwinding, and further ensures the stability of the lifting of the electromagnet block 56.

[0039] A pair of limit posts 59 are installed on the lower surface of the top plate 3; a vertical sliding groove 510 is formed in each limit post 59; two sliding blocks 58 are symmetrically arranged on the outer peripheral surface of the weight 57; the two sliding blocks 58 are respectively slidably installed in the sliding grooves 510 on the two limit posts 59. By using the structure in which the sliding block 58 and the sliding groove 510 cooperate, the verticality of the fall of the weight 57 can be guaranteed, thereby improving the accuracy of detecting the bearing capacity of the foundation. In this embodiment, an electromagnet block 56 is used to control the release of the weight 57, which is convenient for accurately controlling the timing of hammering and improving the accuracy of detection.

[0040] As shown in Figure 2 , the height adjustment mechanism 2 includes square tubes 21, columns 22 and a cylinder 24; the four square tubes 21 are respectively vertically installed at the four corner positions of the top surface of the detection base 1; the columns 22 are slidably inserted into the inner holes of the square tubes 21; and the top ends of the columns 22 are connected to the lower surface of the top plate 3; connecting beams 23 are respectively welded between the two square tubes 21 at the left end of the top surface of the detection base 1 and between the two square tubes 21 at the right end of the top surface; the cylinder 24 is installed at the central position of the top surface of the connecting beam 23; the piston rod of the cylinder 24 is connected to the lower surface of the top plate 3. By the expansion and contraction of the cylinder 24, the top plate 3 and the components installed on the top plate 3 are pushed to rise or fall. Specifically, when the entire detection device needs to be transported, the height of the top plate 3 can be reduced, thereby reducing the volume occupied by the entire device, facilitating transportation, and improving the convenience during transportation in the wild or under complex terrain conditions. When a large hammering force needs to be provided for the hammering mechanism, the height of the top plate 3 can be adjusted upward, thereby increasing the relative height between the weight 57 and the struck plate 71 and increasing the impact force when the weight 57 falls.

[0041] As shown in Figure 2 , moving wheels 11 are respectively arranged at the four corner positions of the lower surface of the detection base 1, and a U-shaped handle 14 is arranged between the two square tubes 21 at the left end of the top surface of the detection base 1. By using the moving wheels 11, the convenience of device movement is improved. By arranging the U-shaped handle 14, it is convenient for the operator to hold when pushing the entire device to move.

[0042] As shown in Figure 1 and Figures 5 to 8As shown in the figure, four extension columns 9 are slidably installed inside the detection base 1; two of them are installed inside the left end of the detection base 1, and the other two are installed inside the right end of the detection base 1; a driving mechanism 8 is arranged on the detection base 1, which is used to drive two of the extension columns 9 to extend from the front end face of the detection base 1, and drive the other two extension columns 9 to extend from the rear end face of the detection base 1; a reinforcement mechanism 10 is installed at the end of the extending end of each extension column 9. When performing detection, after the entire device moves into place, the extension columns 9 are extended from the detection base 1, and the ground is supported by the reinforcement mechanism 10, so that the entire device can be stably installed on the foundation, providing the stability of the device.

[0043] Specifically, as shown in Figure 5 the figure, the reinforcement mechanism 10 includes a fixed block 101, a bottom plate 104 and a vertical screw 102 screwed on the fixed block 101; the fixed block 101 is welded to the end of the extending end of the extension column 9; a connecting sleeve 105 is fixedly connected to the upper surface of the bottom plate 104; the lower end of the screw 102 is rotatably installed in the connecting sleeve 105; a plurality of ground cones 107 are arranged in an array on the lower surface of the bottom plate 104; a runner 103 is fixedly connected to the upper end of the screw 102; a vertical guide rod 106 is slidably inserted on the fixed block 101, and the lower end of the guide rod 106 is connected to the top surface of the bottom plate 104.

[0044] As shown in Figures 6 to 8 the figure, two guide grooves 12 are respectively opened at the left end and the right end of the detection base 1; a connecting channel 13 is opened between the two guide grooves 12 at each end of the detection base 1; the driving mechanism 8 includes a power component installed on the top surface of the detection base 1 and a transmission component arranged in the connecting channel 13; a protective shell 81 is arranged on the top surface of the detection base 1, and the power component is installed inside the protective shell 81; the power component is in transmission connection with the transmission component; the extension column 9 is slidably installed in the guide groove 12 and is driven by the transmission component.

[0045] As shown in Figure 8 the figure, the transmission component in each connecting channel 13 includes two connecting shafts 86, and the connecting shafts 86 are rotatably inserted on the detection base 1, one of the connecting shafts 86 is arranged at a position close to the front end face of the detection base 1, and the other connecting shaft 86 is arranged at a position close to the rear end face of the detection base 1; a driving gear 89 and a synchronous pulley 87 are respectively arranged on each connecting shaft 86; a synchronous belt 88 is jointly sleeved between the synchronous pulleys 87 on the two connecting shafts 86; a side groove 91 is opened on one side of the extension column 9 close to the connecting shaft 86, and a tooth portion 92 is arranged in the side groove 91.

[0046] The drive gear 89 on the coupling shaft 86 at the front end face position of the proximity detection base 1 meshes with the tooth portion 92 on the extension post 9 extending from the front end face of the detection base 1. The drive gear 89 on the coupling shaft 86 at the rear end face position of the proximity detection base 1 meshes with the tooth portion 92 on the extension post 9 extending from the rear end face of the detection base 1.

[0047] Combined Figure 6 As shown, the power assembly includes a dual-head motor 82 installed on the upper surface of the detection base 1, and rotating shafts 83 are connected to both output ends of the dual-head motor 82; a first bevel gear 84 is installed at the end of the rotating shaft 83 away from the dual-head motor 82; a second bevel gear 85 is installed at the top of the coupling shaft 86 at the front end face position of the proximity detection base 1, and the first bevel gear 84 meshes with the second bevel gear 85. The dual-head motor 82 can synchronously drive the two rotating shafts 83 to rotate, and further drive the transmission components in the connection channels 13 at both ends of the detection base 1 to move, and further synchronously drive the four extension posts 9 to extend or retract.

[0048] Further, a strip-shaped protrusion 12a is provided on the bottom surface of the guide groove 12, and a strip-shaped groove 63 is provided on the bottom surface of the extension post 9. The strip-shaped protrusion 12a is slidably matched with the strip-shaped groove 63 to ensure the stable extension and retraction of the extension post 9.

[0049] In this embodiment, a controller 4 is provided on one of the connecting beams 23, and the controller 4 is control-connected to the drive motor 53, the electromagnet block 56, and the dual-axis motor 82. The controller 4 facilitates the operation of the device, reduces the complexity of the operation, and thus improves the work efficiency.

[0050] When using the above-mentioned foundation bearing capacity detection device for foundation bearing capacity exploration and detection, the specific process is as follows:

[0051] After the entire device is moved to the detection position by the moving wheels 11, the drive mechanism 8 is started. The dual-head motor 82 drives the rotating shaft 83 to make the first bevel gear 84 mesh with the second bevel gear 85, and then the second bevel gear 85 drives the coupling shaft 86 to rotate. The two coupling shafts 86 in the same connection channel 13 rotate synchronously under the action of the synchronous pulley 87 and the synchronous belt 88, thereby driving the corresponding drive gear 89 to rotate. Since the drive gear 89 meshes with the tooth portion 92 of the extension post 9, the corresponding extension post 9 can be driven to extend from the detection base 1.

[0052] After the extension post 9 extends, the rotating wheel 103 rotates to drive the screw 102 to rotate on the fixed block 101, so that the bottom plate 104 descends. Under the action of the guide rod 106, the bottom plate 104 can descend stably, and multiple ground cones 107 below the bottom plate 104 are inserted into the foundation to complete the fixation of the device.

[0053] The height adjustment mechanism 2 adjusts the extension length of the piston rod through the air cylinder 24, and then enables the column 22 to slide within the square tube 21, so as to flexibly adjust the height of the top plate 3, and further adjust the relative height between the heavy hammer 57 of the hammering mechanism 5 and the struck disc 71 of the sounding assembly 7, to meet the detection requirements at different depths.

[0054] The hammering mechanism 5 drives the steel rope winding disc 52 to rotate through the drive motor 53, so as to facilitate the winding of the steel rope to drive the electromagnet block 56 to lift and lower, and controls the fall of the heavy hammer 57 by the on / off of the electromagnet block 56 to hammer the struck disc 71 of the sounding assembly 7. By using the structure of the cooperation between the slider 58 and the chute 510, the verticality of the fall of the heavy hammer 57 can be ensured, and the accuracy of the hammering can be improved.

[0055] When detecting the bearing capacity at different depths, by increasing or decreasing the number of detachable sounding rods 72 and adjusting the length of the rod body 74, the bearing capacity of the foundation at different depths can be detected. During the detection process, the rod body 74 of the sounding assembly 7 reduces friction through the balls 62, ensures vertical movement, and improves the service life of the rod body 74 in the sounding assembly 7.

[0056] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the description and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A foundation bearing capacity detection device, characterized in that: It comprises a detection base (1), a height adjustment mechanism (2) and a guide frame (6) installed on the top surface of the detection base (1); The guide frame (6) is an inverted U-shaped frame and is mounted at the rectangular through hole position of the detection base (1); A feeler assembly (7) is slidably mounted on the guide frame (6); A top plate (3) is installed on the top of the height adjustment mechanism (2); A hammering mechanism (5) for hammering the sounding assembly (7) is installed on the lower surface of the top plate (3); The feeler assembly (7) comprises a rod body (74), a striking plate (71) arranged at the top end of the rod body (74), and a cone head (73) arranged at the bottom end of the rod body (74); the rod body (74) is formed by splicing a plurality of detachable feeler rods (72) end to end.

2. A foundation bearing capacity detection device as claimed in claim 1, characterized in that: A guide tube (61) is integrally formed on the bottom surface of the crossbeam of the guide frame (6); The crossbeam of the guide frame (6) and the guide tube (61) are jointly provided with a guide hole (63) penetrating upward and downward, and the rod body (74) of the feeler assembly (7) penetrates the guide hole (63); A ball (62) is rollingly mounted on the inner wall of the guide hole (63), and the ball (62) is in rolling contact with the rod body (74).

3. A foundation bearing capacity detection device as claimed in claim 1, characterized in that: A threaded column (72a) is integrally formed at the top end of the detachable probe rod (72), and a threaded hole (72b) is provided at the bottom end; the threaded columns (72a) and the threaded holes (72b) of two adjacent detachable probe rods (72) on the rod body (74) are matched with each other; The cone head (73) comprises a cone body (73b) and a threaded rod (73a) integrally formed on the top surface of the cone body (73b); the threaded rod (73a) matches with the threaded hole (72b) of the lowermost detachable probe rod (72) of the rod body (74); An internal threaded tube (71a) is integrally formed on the bottom surface of the striking plate (71); a threaded column (72a) of the uppermost detachable probe rod (72) of the rod body (74) cooperates with the internal threaded tube (71a).

4. A foundation bearing capacity detection device as claimed in claim 1, characterized in that: The beating mechanism (5) comprises a pair of first mounting seats (51) and a pair of second mounting seats (54) arranged on the lower surface of the top plate (3); a steel rope winding drum (52) is rotatably mounted between the two first mounting seats (51); a driving motor (53) is mounted on one of the first mounting seats (51), and an output shaft of the driving motor (53) is connected to a rotating shaft of the steel rope winding drum (52); A guide wheel (55) is rotatably mounted between the two second mounting seats (54); the steel rope on the steel rope winding drum (52) is guided by the guide wheel (55) and then connected to an electromagnet block (56); a weight (57) is arranged below the electromagnet block (56); the weight (57) can be adsorbed on the electromagnet block (56).

5. A foundation bearing capacity detection device as claimed in claim 4, characterized in that: A limiting angle plate (511) is installed on the lower surface of the top plate (3), and the limiting angle plate (511) is L-shaped; a through hole for the steel rope to pass through is opened on the horizontal plate of the limiting angle plate (511); the steel rope on the steel rope winding drum (52) passes through the through hole on the limiting angle plate (511) after being guided by the guide wheel (55), and then connected to the electromagnet block (56); A pair of limiting columns (59) are installed on the lower surface of the top plate (3); a vertical sliding groove (510) is opened on each limiting column (59); two sliding blocks (58) are symmetrically arranged on the outer peripheral surface of the weight (57); the two sliding blocks (58) are respectively slidably installed in the sliding grooves (510) on the two limiting columns (59).

6. A foundation bearing capacity detection device as claimed in claim 1, characterized in that: The height adjustment mechanism (2) comprises a square tube (21), a column (22) and a cylinder (24); Four square tubes (21) are respectively vertically mounted at the four corners of the top surface of the detection base (1); The column (22) is slidably inserted into the inner hole of the square tube (21); and the top end of the column (22) is connected to the lower surface of the top plate (3); A connecting beam (23) is welded between two square tubes (21) at the left end of the top surface of the detection base (1) and between two square tubes (21) at the right end of the top surface; the cylinder (24) is installed at the center position of the top surface of the connecting beam (23); and the piston rod of the cylinder (24) is connected to the lower surface of the top plate (3).

7. A foundation bearing capacity detection device as claimed in claim 1, characterized in that: Four extension columns (9) are slidably mounted inside the detection base (1); two of them are mounted inside the left end of the detection base (1), and the other two are mounted inside the right end of the detection base (1); A driving mechanism (8) is provided on the detection base (1) for driving two of the extension columns (9) to extend from the front end surface of the detection base (1), and driving the other two extension columns (9) to extend from the rear end surface of the detection base (1); A reinforcement mechanism (10) is installed at the end of the protruding end of each extension column (9).

8. A foundation bearing capacity detection device as claimed in claim 7, characterized in that: The reinforcement mechanism (10) comprises a fixing block (101), a bottom plate (104), and a vertical screw rod (102) screwed onto the fixing block (101); The fixing block (101) is welded to the end of the extended end of the extension column (9); The upper surface of the bottom plate (104) is fixedly connected with a connecting sleeve (105); the lower end of the screw rod (102) is rotatably mounted in the connecting sleeve (105); A plurality of ground cones (107) are arranged in an array on the lower surface of the bottom plate (104); A rotating wheel (103) is fixedly connected to the upper end of the screw rod (102); A vertical guide rod (106) is slidably inserted on the fixed block (101), and the lower end of the guide rod (106) is connected to the top surface of the bottom plate (104).

9. A foundation bearing capacity detection device as claimed in claim 7, characterized in that: Two guide grooves (12) are respectively provided at the left end and the right end of the detection base (1); a connecting channel (13) is provided between the two guide grooves (12) at each end of the detection base (1); The driving mechanism (8) comprises a power assembly mounted on the top surface of the detection base (1) and a transmission assembly arranged in the connection channel (13); a protective shell (81) is arranged on the top surface of the detection base (1), and the power assembly is mounted inside the protective shell (81); the power assembly is in transmission connection with the transmission assembly; the extension column (9) is slidably mounted in the guide groove (12) and driven by the transmission assembly.

10. A foundation bearing capacity detection device as claimed in claim 9, characterized in that: The transmission assembly in each connecting channel (13) comprises two connecting shafts (86), and the connecting shafts (86) are rotatably inserted on the detection base (1), wherein one connecting shaft (86) is arranged at a position close to the front end surface of the detection base (1), and the other connecting shaft (86) is arranged at a position close to the rear end surface of the detection base (1); a driving gear (89) and a synchronous wheel (87) are respectively arranged on each connecting shaft (86); a synchronous belt (88) is commonly sleeved between the synchronous wheels (87) on the two connecting shafts (86); a side groove (91) is provided on a side of the extension column (9) close to the connecting shaft (86), and a toothed portion (92) is arranged in the side groove (91); A driving gear (89) on a connecting shaft (86) located near the front end surface of the detection base (1) meshes with a toothed portion (92) on an extension column (9) extending from the front end surface of the detection base (1); A driving gear (89) on a connecting shaft (86) located near the rear end surface of the detection base (1) meshes with a toothed portion (92) on an extension column (9) extending from the rear end surface of the detection base (1); The power assembly comprises a double-headed motor (82) mounted on the upper surface of the detection base (1), and the output ends at both ends of the double-headed motor (82) are connected to a rotating shaft (83); A first bevel gear (84) is installed at one end of the rotating shaft (83) away from the double-headed motor (82); a second bevel gear (85) is installed at the top end of the connecting shaft (86) near the front end surface of the detection base (1), and the first bevel gear (84) is meshed with the second bevel gear (85).

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