Auxiliary testing device for bearing capacity of high-rise building foundation

Abstract

The utility model provides a high-rise building foundation bearing capacity auxiliary testing device, and relates to the technical field of building construction testing devices, the high-rise building foundation bearing capacity auxiliary testing device comprises a U-shaped supporting frame, and the middle position of the top end of the U-shaped supporting frame is slidably provided with a six-edge sliding shaft which is vertically arranged and slides in the vertical direction; a cage-shaped mounting frame is welded to the top end of the six-edge sliding shaft, the whole cage-shaped mounting frame is formed by welding four U-shaped vertical frames in a surrounding mode, and a hammering block is installed in the lower half portion of the cage-shaped mounting frame in a sliding mode; a motor is fixedly hoisted in the center of the bottom side of the top end part of the cage-shaped mounting frame and is used for driving a hammering block to slide up and down in a reciprocating manner, so that the conical drilling block is hammered and inserted into a soil layer of a foundation; and the motor is positioned in the top end part of the interior of the cage-shaped mounting frame. The cage-shaped mounting frame has a dual-purpose use effect, so that compared with the prior art, the testing device does not need to be additionally and specially provided with an anti-collision protection mechanism for the motor, and the whole structure and the manufacturing cost of the testing device can be simplified and reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction testing devices, and in particular to an auxiliary testing device for the bearing capacity of high-rise building foundations. Background Technology

[0002] Foundation bearing capacity testing for high-rise buildings is a crucial step in ensuring the safety and stability of buildings. It aims to assess the bearing capacity of the foundation soil to determine whether it can withstand the weight and loads of the building. Foundation bearing capacity testing for high-rise buildings includes the Standard Penetration Test (SPT). The principle of the SPT is to drive a standard penetrator with a drill bit into the soil and record the number of blows required to reach a predetermined depth, thereby assessing the soil's compaction and bearing capacity. Specialized auxiliary testing equipment is required when conducting the SPT.

[0003] Existing test equipment used for standard penetration testing often requires anti-collision protection mechanisms for the motor driving the hammer impact assembly during transport. However, these anti-collision protection mechanisms often need to be specially added, which means that the equipment cannot use its original support structure to protect the motor from collisions. This is not conducive to simplifying the overall structure of the equipment and reducing its cost. Summary of the Invention

[0004] In view of this, the present invention provides an auxiliary testing device for the bearing capacity of high-rise building foundations to solve the problem that anti-collision protection mechanisms often require additional special installations, which prevents the device from utilizing its original support structure to provide anti-collision protection for the motor, thus hindering the simplification of the overall structure of the device and the reduction of its cost.

[0005] The technical solution proposed by this utility model is: an auxiliary testing device for the bearing capacity of a high-rise building foundation, specifically including: a U-shaped support frame, wherein a vertically arranged and vertically sliding hexagonal sliding shaft is slidably installed at the middle position of the top of the U-shaped support frame, and a conical drilling block is fixedly installed at the bottom end of the hexagonal sliding shaft.

[0006] The top of the hexagonal sliding shaft is welded with a cage-shaped mounting frame. The cage-shaped mounting frame is composed of four U-shaped vertical frames welded around it, and a hammering block is slidably installed inside the lower half of the cage-shaped mounting frame. A motor is suspended and fixed at the center of the bottom side of the top part of the cage-shaped mounting frame. The motor is used to drive the hammering block to slide up and down reciprocally to hammer the conical drilling block, so as to hammer and insert the conical drilling block into the soil layer of the foundation. The motor is located in the top part of the cage-shaped mounting frame.

[0007] Furthermore,

[0008] A rotating wheel is fitted onto the bottom end of the motor shaft, and a dial is welded to the bottom side of the circumference of the rotating wheel.

[0009] Furthermore,

[0010] A horizontal support positioning shaft is welded between the top portions of the two symmetrically arranged U-shaped vertical frames on the cage-shaped mounting frame. A longitudinal support drive plate is slidably mounted on the horizontal support positioning shaft. The tail end of the longitudinal support drive plate is slidably engaged with the horizontal support positioning shaft, and a connecting rod is rotatably connected to the bottom side of the tail end of the longitudinal support drive plate.

[0011] Furthermore,

[0012] Two sliding sleeves are symmetrically welded to the outer side of the top part of the hammer block. The two sliding sleeves are in sliding engagement with the two U-shaped vertical frames that are welded to the positioning shaft of the horizontal support.

[0013] Furthermore,

[0014] The tail end of the connecting rod is rotatably connected to the top of the hammer block near a sliding sleeve.

[0015] Furthermore,

[0016] The dial shaft comes into contact with the longitudinal support drive plate as it rotates with the rotating wheel.

[0017] Furthermore,

[0018] The U-shaped support frame is arranged in an inverted position and has a base welded to its bottom end. A cross brace mounting plate is welded to the top part of the U-shaped support frame. The hexagonal sliding shaft slides through and engages with the middle part of the top side rod and the cross brace mounting plate of the U-shaped support frame.

[0019] The auxiliary testing device for the bearing capacity of high-rise building foundations provided by this utility model has the following beneficial effects:

[0020] First, the cage-shaped mounting frame can be used as an anti-collision mechanism to protect the motor. In addition, the cage-shaped mounting frame is also used to install the hammer block and limit the sliding trajectory of the hammer block. Thus, the cage-shaped mounting frame has a dual-purpose function. This allows the testing device to use the support mounting mechanism that was originally necessary to set on it, namely the cage-shaped mounting frame, to protect the motor from collisions. Compared with the existing technology, there is no need to configure an additional anti-collision protection mechanism for the motor, which helps to simplify and reduce the overall structure and cost of the testing device.

[0021] Second, by adjusting the motor speed through a frequency converter, the frequency of hammering of the hammer block on the conical drilling block can be adjusted to meet the penetration test requirements under different impact frequencies, thereby improving the applicability of the testing device. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0023] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0024] In the attached diagram:

[0025] Figure 1 A schematic diagram of the overall structure of this utility model is shown;

[0026] Figure 2 A schematic diagram of the overall bottom side structure of this utility model is shown;

[0027] Figure 3 A schematic diagram of the bottom structure of the cage-shaped mounting frame of this utility model is shown;

[0028] Figure 4 This utility model illustrates Figure 3 Enlarged structural diagram of section A;

[0029] Figure 5 A schematic diagram of the hammer block structure of this utility model is shown;

[0030] Figure 6 A schematic diagram of the longitudinal support drive plate structure of this utility model is shown.

[0031] List of reference numerals in the attached diagram:

[0032] 1. U-shaped support frame; 101. Base; 102. Cross brace mounting plate; 103. Hexagonal sliding shaft;

[0033] 2. Frequency converter;

[0034] 3. Conical drilling site;

[0035] 4. Cage-shaped mounting bracket; 401. Horizontal brace positioning shaft; 402. Longitudinal brace drive plate;

[0036] 5. Motor; 501. Rotary wheel; 5011. Turning shaft;

[0037] 6. Hammering block; 601. Sliding sleeve; 602. Connecting rod. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0039] Please refer to Figures 1 to 6 ; Example

[0040] This utility model proposes an auxiliary testing device for the bearing capacity of high-rise building foundations, comprising: a U-shaped support frame 1, a vertically arranged and vertically sliding hexagonal sliding shaft 103 slidably installed at the top center of the U-shaped support frame 1, and a conical drilling block 3 fixedly installed at the bottom end of the hexagonal sliding shaft 103.

[0041] A cage-shaped mounting frame 4 is welded to the top of the hexagonal sliding shaft 103. The cage-shaped mounting frame 4 is composed of four U-shaped vertical frames welded around it. A hammer block 6 is slidably installed inside the lower half of the cage-shaped mounting frame 4. A motor 5 is hoisted and fixed at the center of the bottom side of the top part of the cage-shaped mounting frame 4. The motor 5 is used to drive the hammer block 6 to slide up and down and hammer the conical drilling block 3 to hammer and insert the conical drilling block 3 into the soil layer of the foundation. The motor 5 is located in the top part of the cage-shaped mounting frame 4.

[0042] The cage-shaped mounting frame 4 can be used as an anti-collision mechanism to protect the motor 5, and it is also used to install the hammer block 6 and limit the sliding trajectory of the hammer block 6. Thus, the cage-shaped mounting frame 4 has a dual-purpose function. This allows the test device to use the support mounting mechanism that was originally necessary to set on it, namely the cage-shaped mounting frame 4, to protect the motor 5 from collision. Compared with the existing technology, there is no need to configure an additional anti-collision protection mechanism for the motor 5, which helps to simplify and reduce the overall structure and cost of the test device.

[0043] Preferred,

[0044] A frequency converter 2 is fixedly installed on one of the vertical side bars of the U-shaped support frame 1. The frequency converter 2 is electrically connected to the motor 5 to adjust the speed of the motor 5.

[0045] By adjusting the speed of motor 5 using frequency converter 2, the hammering frequency of hammering block 6 on conical drilling block 3 can be adjusted to meet the penetration test requirements under different impact frequencies, thereby improving the applicability of the testing device.

[0046] Based on Example 1, Example 2:

[0047] Preferred,

[0048] The bottom end of the motor shaft is fitted with a rotating wheel 501, and the bottom side of the circumference of the rotating wheel 501 is welded with a pivot shaft 5011.

[0049] Preferred,

[0050] A horizontal support positioning shaft 401 is welded between the top parts of two symmetrically arranged U-shaped vertical frames on the cage-shaped mounting frame 4. A longitudinal support drive plate 402 is slidably mounted on the horizontal support positioning shaft 401. The tail end of the longitudinal support drive plate 402 is slidably engaged with the horizontal support positioning shaft 401, and a connecting rod 602 is rotatably connected to the bottom side of the tail end of the longitudinal support drive plate 402.

[0051] Preferred,

[0052] Two sliding sleeves 601 are symmetrically welded to the outer side of the top part of the hammer block 6. The two sliding sleeves 601 correspond to the two U-shaped vertical frames of the welded installation cross brace positioning shaft 401 and slide in fit.

[0053] Preferred,

[0054] The tail end of the connecting rod 602 is rotatably connected to the top of the hammer block 6 near a sliding sleeve 601;

[0055] The connecting rod 602, the hammer block 6, and the longitudinal support drive plate 402 are connected to form a crank-slider mechanism. Through this mechanism, the longitudinal support drive plate 402 is driven to slide away from the frequency converter 2 along the cross support positioning shaft 401, which can pull and drive the hammer block 6 to slide upward to accumulate gravitational potential energy. Through the dial shaft 5011, the motor 5 and the wheel 501 can rotate and push the longitudinal support drive plate 402 away from the frequency converter 2, and drive the hammer block 6 to slide upward to accumulate force. When the dial shaft 5011 continues to rotate with the wheel 501, the force is continuously generated. When the hammer block 6 disengages from the tail end of the longitudinal support drive plate 402, it loses the upward holding force from the longitudinal support drive plate 402 and can directly rely on its accumulated gravitational potential energy to fall downward and impact the bottom part of the cage-shaped mounting frame 4, the hexagonal sliding shaft 103 and the conical drilling block 3. When the hammer block 6 slides down to impact and reset, it can pull the longitudinal support drive plate 402 to the return reset state through the crank slider mechanism, so that the dial shaft 5011 can push the longitudinal support drive plate 402 again.

[0056] In this way, through the power transmission of the dial 5011 and the crank-slider mechanism, and in conjunction with the gravity falling effect of the hammer block 6, the motor 5 can realize the up-and-down reciprocating sliding drive of the hammer block 6.

[0057] Preferred,

[0058] The dial 5011 comes into contact with the longitudinal support drive plate 402 when it rotates with the follow wheel 501.

[0059] Preferred,

[0060] The U-shaped support frame 1 is arranged in an inverted position, and a base 101 is welded to the bottom end. A cross brace mounting plate 102 is welded to the top part of the U-shaped support frame 1. The hexagonal sliding shaft 103 is slidably connected to the top side rod of the U-shaped support frame 1 and the middle part of the cross brace mounting plate 102.

[0061] The working principle of this embodiment is as follows: the motor 5 is used to drive the hammer block 6 to slide up and down repeatedly to hammer the conical drilling block 3 so as to hammer and insert the conical drilling block 3 into the soil layer of the foundation.

[0062] The connecting rod 602, the hammer block 6, and the longitudinal support drive plate 402 are connected to form a crank-slider mechanism. Through this mechanism, the longitudinal support drive plate 402 is driven to slide away from the frequency converter 2 along the cross support positioning shaft 401, which can pull and drive the hammer block 6 to slide upward to accumulate gravitational potential energy. Through the deflector shaft 5011, the motor 5 and the wheel 501 can rotate and push the longitudinal support drive plate 402 away from the frequency converter 2, and drive the hammer block 6 to slide upward to accumulate force. When the deflector shaft 5011 continues to rotate with the wheel 501 and disengages from the tail end of the longitudinal support drive plate 402, the hammer block 6 loses the force from the longitudinal support drive plate 402. The upward holding force of 02 can directly rely on its accumulated gravitational potential energy to fall downward and impact the bottom part of the cage-shaped mounting frame 4, the hexagonal sliding shaft 103 and the conical drilling block 3. When the hammer block 6 slides down to impact and reset, the longitudinal support drive plate 402 can be pulled and driven to the return reset state through the crank slider mechanism, so that the dial shaft 5011 can push the longitudinal support drive plate 402 again. In this way, through the power transmission of the dial shaft 5011 and the crank slider mechanism and in conjunction with the gravity falling effect of the hammer block 6, the motor 5 can realize the up and down reciprocating sliding drive of the hammer block 6.

[0063] The testing principle is as follows: record the number of hammer blows required for each unit depth of the conical drill block 3 inserted into the foundation soil layer to assess the hardness and bearing capacity of the soil. The unit depth can be obtained by measuring the depth of the hole drilled by the conical drill block 3 in the foundation soil layer, while the number of hammer blows can be obtained directly by the frequency converter 2.

[0064] The following points should be noted in this article:

[0065] 1. The accompanying drawings of this utility model embodiment only involve the structure involved in this utility model embodiment; other structures can refer to general designs.

[0066] 2. Where there is no conflict, the embodiments of this utility model and the features in the embodiments can be combined with each other to obtain new embodiments.

[0067] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An auxiliary testing device for the bearing capacity of high-rise building foundations, comprising: A U-shaped support frame (1) is provided with a vertically arranged and vertically sliding hexagonal sliding shaft (103) slidably installed at the middle position of the top of the U-shaped support frame (1), and a conical drilling block (3) is fixedly installed at the bottom end of the hexagonal sliding shaft (103). The feature is that a cage-shaped mounting frame (4) is welded to the top of the hexagonal sliding shaft (103). The cage-shaped mounting frame (4) is composed of four U-shaped vertical frames welded around it. A hammer block (6) is slidably installed inside the lower half of the cage-shaped mounting frame (4). A motor (5) is hoisted and fixed at the center of the bottom side of the top part of the cage-shaped mounting frame (4). The motor (5) is used to drive the hammer block (6) to slide up and down to hammer the conical drilling block (3) so as to hammer the conical drilling block (3) into the soil layer of the foundation. The motor (5) is located in the top part of the cage-shaped mounting frame (4).

2. The auxiliary testing device for the bearing capacity of high-rise building foundations according to claim 1, characterized in that, The bottom end of the motor (5) shaft is fitted with a rotating wheel (501), and a dial (5011) is welded to the bottom side of the circumference of the rotating wheel (501).

3. The auxiliary testing device for the bearing capacity of high-rise building foundations according to claim 2, characterized in that, A horizontal support positioning shaft (401) is welded between the top parts of the two symmetrically arranged U-shaped vertical frames on the cage-shaped mounting frame (4). A longitudinal support driving plate (402) is slidably installed on the horizontal support positioning shaft (401). The tail end of the longitudinal support driving plate (402) is slidably engaged with the horizontal support positioning shaft (401), and a connecting rod (602) is rotatably connected to the bottom side of the tail end of the longitudinal support driving plate (402).

4. The auxiliary testing device for the bearing capacity of high-rise building foundations according to claim 3, characterized in that, Two sliding sleeves (601) are symmetrically welded to the outer side of the top part of the hammer block (6). The two sliding sleeves (601) are in sliding cooperation with the two U-shaped vertical frames of the welded installation cross brace positioning shaft (401).

5. The auxiliary testing device for the bearing capacity of high-rise building foundations according to claim 4, characterized in that, The tail end of the connecting rod (602) is rotatably connected to the top of the hammer block (6) near a sliding sleeve (601).

6. The auxiliary testing device for the bearing capacity of high-rise building foundations according to claim 3, characterized in that, The dial (5011) comes into contact with the longitudinal support drive plate (402) when it rotates with the follow wheel (501).

7. The auxiliary testing device for the bearing capacity of high-rise building foundations according to claim 1, characterized in that, The U-shaped support frame (1) is arranged in an inverted position and a base (101) is welded to the bottom end. A cross brace mounting plate (102) is welded to the top part of the U-shaped support frame (1). The hexagonal sliding shaft (103) slides through the middle part of the top side rod of the U-shaped support frame (1) and the cross brace mounting plate (102).

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