CN220377381U - Foundation bearing capacity detection device - Google Patents

Abstract

The utility model discloses a foundation bearing capacity detection device, which relates to the technical field of foundation bearing capacity detection devices and comprises a flat plate, a splicing unit, a lower hammer unit and a measurement unit, wherein the lower hammer unit is used for changing weight and height; the circumference of the lower end of the flat plate is movably connected with a supporting plate strip at equal intervals, the circumference of the upper end of the flat plate is provided with a splicing unit at equal intervals, the middle part of the flat plate is inserted with a T-shaped detection column, the upper end of the detection column is connected with a guide disc column in a threaded manner, a counterweight chassis and a weighting disc are inserted on the guide disc column, the counterweight chassis and the weighting disc are matched through a clamping assembly, and the splicing unit is provided with a hydraulic rod and an L-shaped strip; according to the utility model, after the locking block moves down to the right position, the locking block is matched with the annular groove at the corresponding horizontal position, when the locking block moves up to the right position, the sliding seat is matched with the L-shaped strip, the counterweight chassis and the weighting disc naturally fall, the bearing capacity of the foundation is detected by a power transient test method, the detection and conversion of the bearing capacity of the foundation under different qualities are more convenient, the operation is simple, and the safety coefficient and the working efficiency are higher.

Description

Foundation bearing capacity detection device

Technical Field

The utility model relates to the technical field of foundation bearing capacity detection devices, in particular to a foundation bearing capacity detection device.

Background

The foundation bearing capacity refers to the maximum load which can be borne by a foundation soil layer, and is usually detected through field tests or indoor tests; common detection methods are: static load test, power touch control test method, power transient test method, indoor test and the like; the dynamic transient test method is commonly used for detecting the bearing capacity of the foundation of a small building or some special buildings, and the bearing capacity is further calculated by adopting impact dynamic load and measuring the corresponding rebound distance and time and the change of soil dynamic parameters to obtain the inherent damping ratio of the soil and the soil dynamic parameters.

The patent publication No. CN218175941U discloses a bridge tunnel foundation bearing capacity detection device, which is mainly characterized in that after the device is fixed on the ground through a ground cone, a hydraulic rod is utilized to drive a heavy hammer to smash towards the ground so as to realize the detection of the foundation bearing capacity.

According to the technology in the related field, most of the foundation bearing capacity detection device is fixed on the ground before being used, the bearing capacity of the foundation is detected through falling of heavy hammers with different masses after the fixing is completed, the heavy hammers are required to be continuously carried and replaced during the detection, the operation process is complicated, certain potential safety hazards exist, and the working efficiency is low.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a foundation load bearing capacity detecting device.

The utility model realizes the above purpose through the following technical scheme:

the foundation bearing capacity detection device comprises a flat plate, a splicing unit, a lower hammer unit and a measuring unit, wherein the lower hammer unit is used for changing weight and height;

and (3) a flat plate: the lower end circumference is movably connected with a supporting plate strip at equal intervals, the upper end circumference of the flat plate is provided with a splicing unit at equal intervals, the middle part of the flat plate is inserted with a T-shaped detection column, the upper end of the detection column is connected with a guide disc column in a threaded manner, the guide disc column is inserted with a counterweight chassis and a weight increasing disc, the counterweight chassis is matched with the weight increasing disc through a clamping assembly, and the splicing unit is provided with a hydraulic rod and an L-shaped strip; the supporting plate strip at the lower side of the movable flat plate can be used for placing the flat plate above the bearing capacity position of the foundation to be detected, the flat plate can be horizontally placed, the hydraulic rod and the L-shaped strip can be directly assembled through the splicing unit, the detection column is directly inserted and connected to enable the detection column to slide in the middle of the flat plate, and the weight increasing plates with corresponding quantity can be inserted and placed on the guide plate column and can be connected through rotation and utilization of the clamping assembly.

And a lower hammer unit: the hydraulic lifting device comprises a square cylinder arranged at the lifting end of the hydraulic rod, wherein a sliding seat is connected in the square cylinder in a sliding manner, a block shaft is arranged in the sliding seat, and a locking block for taking up the counterweight chassis and the weight increasing disc is movably connected to the block shaft; when the square cylinder moves down, the locking block rotates on the block shaft, retracts into the sliding seat, and can be matched with the counterweight chassis or the weighting disc at the corresponding horizontal position after moving down.

A measurement unit: the detection device comprises a plate groove formed in the upper end of the detection column, wherein a tool plate is slidably connected in the plate groove, a pressure sensor is arranged at the lower end of the inner part of the plate groove, and the lower end of the tool plate is matched with the force measuring end of the pressure sensor. When the weight increasing discs of the designated number move downwards, the worker plate on the detection column is impacted, the worker plate applies force to the pressure sensor, and the bearing capacity of the foundation under the mass can be obtained through processing calculation through the electric signals output by the pressure sensor.

Further, the lower hammer unit further comprises an elastic piece, one end of the elastic piece is connected to the sliding seat, the other end of the elastic piece is connected to the square cylinder, a torsion piece is sleeved on the block shaft, one end of the torsion piece is connected to the sliding seat, and the other end of the torsion piece is connected with the locking piece. The elastic force of the elastic piece is utilized, the position of the locking piece can be tangent to the counterweight chassis and the weighting disc in a natural state, and the position of the locking piece can be limited by utilizing the torsion piece and the limiting strip in the sliding seat.

Further, the splicing unit comprises a board socket, a connecting board is inserted in the board socket, a pin shaft is inserted in the connecting board, and the lower end of the pin shaft is inserted in the flat board. The connecting plate is inserted into the plate socket, and then the pin shaft is inserted into the connecting plate socket to fix the connecting plate.

Further, the clamping assembly comprises T-shaped arc grooves which are equidistantly arranged on the counterweight bottom plate and the circumference of the upper end of the weighting plate, and T-shaped columns are equidistantly arranged on the circumference of the lower end of the weighting plate. The impact on the foundation under different qualities can be realized by increasing the number of the weight increasing discs, when the weight increasing discs are placed, the T-shaped columns are correspondingly inserted into the T-shaped arc grooves, and the T-shaped columns can be connected with the weight increasing discs and the weight balancing chassis at the lower side through rotation, and can be separated when rising when not rotating.

Further, the outer walls of the counterweight bottom plate and the weighting plate are provided with annular grooves. After the locking block moves down to the proper position, the locking block can be matched with the ring groove on the counterweight chassis or weighting disc corresponding to the horizontal position, and an object with specified mass is brought up.

Further, the lower extreme of hydraulic rod is connected the upper end of connecting plate, the lower extreme joint of L type strip is in the upper end of connecting plate, the inboard corner of L type strip upper end is the inclined plane form. Impact of different qualities to the foundation under different heights can be realized by changing the L-shaped strips with different heights, and the inclined plane at the corner of the inner side of the upper end of the L-shaped strip is more convenient to be matched with the sliding seat.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, after the locking block moves down to the right position, the locking block is matched with the annular groove at the corresponding horizontal position, when the locking block moves up to the right position, the sliding seat is matched with the L-shaped strip, the locking block is far away from the position tangential to the counterweight chassis or the weighting disc, the counterweight chassis and the weighting disc naturally fall down, the bearing capacity of the foundation is detected by a power transient test method, the operation is simple, and the working efficiency is higher.

2. According to the utility model, the locking block moves down to different heights, the weight increasing disc corresponding to the horizontal position is reversed, so that the weight increasing disc is not matched with the weight increasing disc at the lower side, the weight increasing disc above the corresponding horizontal position falls after being integrally lifted, the detection of the bearing capacity of the foundation under different qualities can be realized by changing the height of the locking block, the operation process is simplified, the safety coefficient is higher, and the effect is better during use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic view of the whole structure of a foundation bearing capacity detecting device according to the present utility model;

FIG. 2 is a schematic diagram of a front cross-sectional structure of a foundation bearing capacity detecting device according to the present utility model;

FIG. 3 is a schematic view of an exploded construction of a foundation bearing capacity detecting device according to the present utility model;

FIG. 4 is a schematic view of the structure of the square cylinder of the foundation bearing capacity detecting device according to the present utility model;

FIG. 5 is a schematic view of the structure of the inner cooperation of the sliding seat of the foundation bearing capacity detecting device according to the present utility model;

FIG. 6 is a schematic view of the structure of the lock block and the ring groove of the foundation bearing capacity detection device in place;

FIG. 7 is a schematic view of the structure of the lock block and the ring groove in the downward movement of the foundation bearing capacity detecting device according to the present utility model;

FIG. 8 is a schematic view of a portion of the L-shaped strip of the foundation bearing capacity detecting device of the present utility model mated with a slide;

FIG. 9 is a schematic diagram of the upper side structure of the counterweight chassis and lock block in cooperation with the release of the foundation bearing capacity detection device according to the utility model;

FIG. 10 is a schematic diagram of a T-shaped column and a T-shaped arc groove of a foundation bearing capacity detection device according to the present utility model;

fig. 11 is a schematic structural view of a pressure sensor part of a foundation bearing capacity detection device according to the present utility model.

The reference numerals are explained as follows:

1. a flat plate; 2. a board socket; 3. a connecting plate; 4. a pin shaft; 5. a detection column; 6. a guide disc column; 7. a counterweight chassis; 8. a weighting plate; 9. a hydraulic rod; 10. a square cylinder; 11. a slide; 12. an elastic member; 13. a block shaft; 14. a locking piece; 15. a torsion member; 16. an L-shaped strip; 17. a T-shaped arc groove; 18. a T-shaped column; 19. a tooling plate; 20. a pressure sensor; 21. and a ring groove.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.

The utility model is further described below with reference to the accompanying drawings:

examples

As shown in fig. 1 to 11, a foundation bearing capacity detecting device includes a flat plate 1, a splicing unit, a lower hammer unit for changing weight and height, and a measuring unit;

plate 1: the circumference of the lower end is movably connected with a supporting plate strip at equal intervals, the circumference of the upper end of the flat plate 1 is provided with a splicing unit at equal intervals, the middle part of the flat plate 1 is inserted with a T-shaped detection column 5, the upper end of the detection column 5 is connected with a guide disc column 6 in a threaded manner, the guide disc column 6 is inserted with a counterweight chassis 7 and a weighting disc 8, the counterweight chassis 7 and the weighting disc 8 are matched through a clamping assembly, and the splicing unit is provided with a hydraulic rod 9 and an L-shaped strip 16; as shown in fig. 1, fig. 2 and fig. 3, the supporting plate strip at the lower side of the movable flat plate 1 can be used for placing the flat plate 1 above the position of the bearing capacity of the foundation to be detected, the flat plate can be horizontally placed, the hydraulic rod 9 and the L-shaped strip 16 can be directly assembled through the splicing unit, the detection column 5 can be directly spliced to enable the detection column to slide in the middle of the flat plate 1, the weight increasing plates 8 with corresponding quantity can be spliced and placed on the guide plate column 6, the detection column can be connected through rotation by using the clamping assembly, the position corresponding to the lower end of the detection column 5 is the position for detecting the bearing capacity of the foundation, and the disassembly and the assembly are more convenient and convenient to transport and use.

And a lower hammer unit: the hydraulic lifting device comprises a square cylinder 10 arranged at the lifting end of a hydraulic rod 9, a sliding seat 11 is connected in the square cylinder 10 in a sliding way, a block shaft 13 is arranged in the sliding seat 11, and a locking block 14 for taking up a counterweight chassis 7 and a weight increasing disc 8 is movably connected to the block shaft 13; as shown in fig. 2, 3, 8 and 9, the hydraulic rod 9 is lifted with the square cylinder 10, after the sliding seat 11 in the square cylinder 10 moves up to a designated height, the sliding seat 11 contacts with the inner side of the upper end of the L-shaped strip 16, the sliding seat 11 slides in the square cylinder 10, the locking piece 14 is far away from the position tangential to the counterweight chassis 7 or the weighting disc 8, the counterweight chassis 7 and the weighting disc 8 are not limited, the upper end of the impact detection column 5 is integrally moved downwards, the bearing capacity of the foundation is detected by using a power transient test method, as shown in fig. 6 and 7, when the square cylinder 10 is integrally moved downwards, the locking piece 14 rotates on the block shaft 13 and retracts into the sliding seat 11, and after moving downwards to a designated position, the locking piece can be matched with the counterweight chassis 7 or the weighting disc 8 corresponding to the horizontal position, so that the detection of the bearing capacity of the foundation under different qualities can be conveniently realized, and the operation is more convenient.

A measurement unit: comprises a plate groove arranged at the upper end of the detection column 5, a tool plate 19 is slidably connected in the plate groove, a pressure sensor 20 is arranged at the lower end of the inner part of the plate groove, and the lower end of the tool plate 19 is matched with the force measuring end of the pressure sensor 20. As shown in fig. 11, when the weight-increasing plate 8 with a specified number moves down, the tool plate 19 on the detection column 5 is impacted, the tool plate 19 applies force to the pressure sensor 20, and the bearing capacity of the foundation under the mass can be obtained through processing calculation by the electric signal output by the pressure sensor 20, so that the calculation is convenient.

The lower hammer unit further comprises an elastic piece 12 with one end connected to the slide seat 11, the other end of the elastic piece 12 is connected to the square cylinder 10, a torsion piece 15 is sleeved on the block shaft 13, one end of the torsion piece 15 is connected to the slide seat 11, and the other end of the torsion piece 15 is connected to the locking piece 14. As shown in fig. 2, 4, 6 and 8, the elastic force of the elastic member 12 is utilized to make the position of the locking piece 14 tangential to the counterweight chassis 7 and the weighting disc 8 in a natural state, and the position of the locking piece 14 can be limited by the torsion member 15 and the limiting strips in the sliding seat 11, so that the locking piece 14 is in an extending state in a natural state, and the stability of the cooperation with the counterweight chassis 7 and the weighting disc 8 is ensured.

The splicing unit comprises a board socket 2, a connecting board 3 is inserted into the board socket 2, a pin 4 is inserted into the connecting board 3, and the lower end of the pin 4 is inserted into the flat board 1. As shown in fig. 1, 2 and 3, the connecting plate 3 is inserted into the plate socket 2, and then the pin shaft 4 is inserted into the connecting plate 3, so that the hydraulic rod 9 and the L-shaped strip 16 are assembled and disassembled more conveniently, and the operation is convenient and fast during transportation and use, and the use effect is better.

The clamping assembly comprises T-shaped arc grooves 17 which are equidistantly arranged on the circumferences of the upper ends of the counterweight base plate 7 and the weighting plate 8, and T-shaped columns 18 are equidistantly arranged on the circumferences of the lower ends of the weighting plate 8. As shown in fig. 1, fig. 2 and fig. 10, the impact on the foundation under different qualities can be realized by increasing the number of the weight-increasing disks 8, the final detection data of the bearing capacity is more accurate, when the weight-increasing disks 8 are placed, the T-shaped columns 18 are correspondingly inserted into the T-shaped arc grooves 17, the weight-increasing disks 8 and the weight-increasing chassis 7 at the lower side can be connected through rotation, when the weight-increasing disks are not rotated, the weight-increasing disks 8 and the weight-increasing chassis 7 at the lower side can be separated when the weight-increasing disks are lifted, the weight-increasing disks 8 and the weight-increasing chassis 7 at the lower side are approximately connected with the ground, the detection of the bearing capacity of the foundation under different qualities can be conveniently adjusted, and the use is more convenient.

The outer walls of the counterweight bottom plate 7 and the weighting plate 8 are provided with annular grooves 21. As shown in fig. 6, after the lock block 14 moves down to a proper position, it can be matched with the ring groove 21 on the counterweight chassis 7 or the weighting disc 8 corresponding to the horizontal position, so that when the counterweight chassis or the weighting disc is lifted, an object with a specified mass can be conveniently brought up, and the detection and calculation of the bearing capacity of the foundation can be realized according to newton's second law and the like.

The lower extreme of hydraulic stem 9 is connected in the upper end of connecting plate 3, and the lower extreme joint of L type strip 16 is in the upper end of connecting plate 3, and the inboard corner of L type strip 16 upper end is the inclined plane form. As shown in fig. 1, 2, 3 and 8, impact of different masses on the foundation at different heights can be realized by replacing the L-shaped strips 16 at different heights, and inclined planes at the inner corners of the upper ends of the L-shaped strips 16 are more convenient to cooperate with the sliding seat 11 to finish release of the weighting disc 8 and the counterweight chassis 7.

Working principle: when the movable flat plate 1 is used, as shown in fig. 1-11, the flat plate 1 can be placed above the bearing capacity position of a foundation to be detected by the supporting plate strips on the lower side of the movable flat plate 1, then the connecting plate 3 is inserted into the plate socket 2, the connecting plate 3 is fixed by the plugging pin shaft 4, the assembly of the hydraulic rod 9 and the L-shaped strip 16 is realized, the disassembly is more convenient, the operation is convenient during transportation and use, the detection column 5 is directly plugged to enable the detection column to slide in the middle part of the flat plate 1, the weight increasing plates 8 with corresponding numbers are plugged on the guide plate column 6, the weight increasing plate 8 on the upper side is rotated, the T-shaped column 18 under the weight increasing plate 8 is inserted into the T-shaped arc groove 17 on the weight increasing plate 8 on the lower side, the mass increase can be realized, the position corresponding to the lower end of the detection column 5 is the bearing capacity detection position of the foundation, the disassembly and the assembly are more convenient, and the transportation and the use are convenient;

as shown in fig. 2, 3, 8 and 9, when the bearing capacity of the foundation under multiple groups of masses is detected, the hydraulic rod 9 works to lift the square cylinder 10, after the sliding seat 11 in the square cylinder 10 moves up to a designated height, the sliding seat 11 contacts with the inclined plane at the corner of the upper end of the L-shaped strip 16, the sliding seat 11 slides in the square cylinder 10, the locking piece 14 is far away from the position tangential to the counterweight chassis 7 or the weighting disc 8, the counterweight chassis 7 and the weighting disc 8 are not limited, the upper end of the impact detection column 5 is integrally moved downwards, the bearing capacity of the foundation is detected by using a power transient test method, as shown in fig. 2, 6 and 7, when the square cylinder 10 is integrally moved downwards, the locking piece 14 rotates on the block shaft 13 and is retracted into the sliding seat 11, after the sliding seat 11 moves downwards to a designated height, the sliding seat 11 can be matched with the counterweight chassis 7 or the weighting disc 8 corresponding to the horizontal position, the weighting disc 8 corresponding to the horizontal position is not locked together, the weighting disc 8 on the lower side is integrally lowered, the weighting disc 8 on the corresponding horizontal position, the height 14 is changed, the height of the weighting disc is different, the bearing capacity is detected, the bearing capacity is improved, the safety coefficient is improved, and the safety operation is convenient;

as shown in fig. 11, when the weight-increasing plate 8 of a specified number moves down, the worker plate 19 on the detection column 5 is impacted, the worker plate 19 applies force to the pressure sensor 20, and the bearing capacity of the foundation under the mass can be obtained through processing calculation by the electric signal output by the pressure sensor 20;

as shown in fig. 1, 2, 3 and 8, the impact of different masses on the foundation at different heights can be achieved by replacing the L-shaped bars 16 at different heights.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims (6)

1. A foundation bearing capacity detection device, characterized by comprising: the device comprises a flat plate (1), a splicing unit, a lower hammer unit for changing weight and height and a measuring unit;

plate (1): the lower end circumference equidistance swing joint has the fagging strip, the upper end circumference equidistance of dull and stereotyped (1) is equipped with the concatenation unit, the middle part of dull and stereotyped (1) is pegged graft and is had detection post (5) of T type, the upper end threaded connection of detection post (5) has guide disc post (6), peg graft on guide disc post (6) have counter weight chassis (7) and weight increase dish (8), counter weight chassis (7) with through joint subassembly cooperation between weight increase dish (8), be equipped with hydraulic stem (9) and L type strip (16) on the concatenation unit;

and a lower hammer unit: the hydraulic lifting device comprises a square cylinder (10) arranged at the lifting end of the hydraulic rod (9), wherein a sliding seat (11) is connected in the square cylinder (10) in a sliding manner, a block shaft (13) is arranged in the sliding seat (11), and a locking block (14) for taking up the counterweight chassis (7) and the weight increasing disc (8) is movably connected to the block shaft (13);

a measurement unit: the detection device comprises a plate groove formed in the upper end of the detection column (5), wherein a tool plate (19) is slidably connected in the plate groove, a pressure sensor (20) is arranged at the lower end of the inner part of the plate groove, and the lower end of the tool plate (19) is matched with the force measuring end of the pressure sensor (20).

2. The foundation load bearing capacity detection device according to claim 1, wherein: the lower hammer unit further comprises an elastic piece (12) with one end connected to the sliding seat (11), the other end of the elastic piece (12) is connected to the square cylinder (10), a torsion piece (15) is sleeved on the block shaft (13), one end of the torsion piece (15) is connected to the sliding seat (11), and the other end of the torsion piece (15) is connected to the locking piece (14).

3. The foundation load bearing capacity detection device according to claim 1, wherein: the splicing unit comprises a board socket (2), a connecting board (3) is inserted into the board socket (2), a pin shaft (4) is inserted into the connecting board (3), and the lower end of the pin shaft (4) is inserted into the flat board (1).

4. The foundation load bearing capacity detection device according to claim 1, wherein: the clamping assembly comprises T-shaped arc grooves (17) which are equidistantly arranged on the upper end circumference of the counterweight base plate (7) and the weight increasing plate (8), and T-shaped columns (18) are equidistantly arranged on the lower end circumference of the weight increasing plate (8).

5. The foundation load bearing capacity detection device according to claim 1, wherein: the outer walls of the counterweight chassis (7) and the weighting disc (8) are provided with annular grooves (21).

6. A foundation load bearing capacity detection device according to claim 3, wherein: the lower extreme of hydraulic rod (9) is connected the upper end of connecting plate (3), the lower extreme joint of L type strip (16) is in the upper end of connecting plate (3), the inboard corner of L type strip (16) upper end is the inclined plane form.