# US 12,768,126 B2 · Movable foundation static load test apparatus

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- Number: US 12,768,126 B2
- Document ID: US12768126B2
- Status: Granted
- Kind: B2
- Application number: 18/426,718
- Filed: 2024-01-30
- Published: 2024-09-12
- Granted: 2026-10-20
- Earliest claimed: 2023-03-07
- Assignees: Guangdong Construction Engineering Quality & Safety Testing Head Station Co., Ltd.
- Applicants: Guangdong Construction Engineering Quality & Safety Testing Head Station Co., Ltd.
- Inventors: Shaoxiang Chen; Wenlong Lv; Chaohua Li; Zhonghua Pang; Guangping Li; Zuoping Zhang; Xuejun Zhang; Mei Yang; Ming Xiao; Shicong Wen; Sinan Dai; Yongqiao Xie
- Web page: https://patentgrep.com/patent/US12768126B2

## CPC

- E02D 33/00: Testing foundations or foundation structures (testing methods and apparatus, see the relevant subclasses of class G01; testing structures or apparatus as regards function, in general, G01M; testing or determining chemical or physical properties, in general G01N)
- B62D 55/10: Bogies; Frames (track-tensioning means B62D55/30)
- B62D 55/12: Arrangement, location, or adaptation of driving sprockets
- E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)}
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

Disclosed is a movable foundation static load test apparatus, which includes a rack, a crawler traveling mechanism and a position adjusting mechanism. The rack is configured to place a balancing weight, the crawler traveling mechanism includes a frame fixedly connected with the rack and is configured to drive the rack to travel, the position adjusting mechanism has a movable stroke moving along the vertical direction, the rack has a movable stroke moving along the vertical direction, the position adjusting mechanism is configured to adjust the distance between the rack and a test object. The crawler traveling mechanism drives the rack to travel, after reaching a test point, the distance between the rack and the test object is adjusted by the position adjusting mechanism to carry out a static load test, the rack may be conveniently moved through the crawler traveling mechanism.

## Claims

### Claim 1

A movable foundation static load test apparatus, comprising:
a rack moving along a vertical direction and configured to place a balancing weight;
a crawler traveling mechanism comprising a frame fixedly connected with the rack, and configured to drive the rack to travel; and
a position adjusting mechanism moving along the vertical direction and configured to adjust a distance between the rack and a test object,
wherein the position adjusting mechanism comprises a main hydraulic cylinder and an auxiliary hydraulic cylinder, the main hydraulic cylinder is fixedly connected with the rack, and the auxiliary hydraulic cylinder is disposed below the main hydraulic cylinder;
a base and a lifting apparatus, wherein the base is disposed below the rack, the lifting apparatus comprises a driving part and a movable part, the driving part is fixedly connected with the rack, and the movable part may move along the vertical direction, is hinged with the base, and is configured to upwards lift the rack and the crawler traveling mechanism; wherein
a first through hole is formed in the rack, and the main hydraulic cylinder penetrates through the first through hole and is fixedly connected with the rack; and/or
a second through hole is formed in the rack, and a driving part of the lifting apparatus penetrates through the second through hole and is fixedly connected with the rack.

### Claim 2 (depends on 1)

The movable foundation static load test apparatus according to claim 1, wherein a first mounting groove and a second mounting groove are formed at a front end and a rear end of the frame respectively;
the crawler traveling mechanism further comprises:
a crawler sleeving outside the frame;
a driving wheel mounted in the first mounting groove and configured to drive the crawler to rotate;
a guide wheel mounted in the second mounting groove and configured to guide an advancing direction of the crawler; and
a driving apparatus configured to drive the driving wheel to rotate.

### Claim 3 (depends on 2)

The movable foundation static load test apparatus according to claim 2, wherein the crawler traveling mechanism further comprises a thrust wheel, and the thrust wheel is disposed between a lower surface of the frame and the crawler and is configured to support a weight of the apparatus; and/or
the crawler traveling mechanism further comprises thrust wheels, and a plurality of thrust wheels are available.

### Claim 4 (depends on 2)

The movable foundation static load test apparatus according to claim 2, wherein the crawler traveling mechanism further comprises a supporting chain wheel, and the supporting chain wheel is disposed between an upper surface of the frame and the crawler and is configured to support the crawler; and/or
the crawler traveling mechanism further comprises supporting chain wheels, and a plurality of supporting chain wheels are available.

### Claim 5 (depends on 2)

The movable foundation static load test apparatus according to claim 2, wherein the crawler comprises a metal crawler or a rubber crawler.

### Claim 6 (depends on 1)

The movable foundation static load test apparatus according to claim 1, wherein two bases are available, the two bases are respectively disposed below a front end and a rear end of the rack, and each base is provided with two ball head hinged supports;
four lifting apparatuses are available, and movable parts of the four lifting apparatuses are respectively hinged with the four ball head hinged supports.

### Claim 7 (depends on 1)

The movable foundation static load test apparatus according to claim 1, wherein the rack comprises:
two cross beams, second through holes being formed at two ends of each cross beam;
two longitudinal beams respectively disposed at front and rear ends of the two cross beams and configured to connect the two cross beams; and
a rack main body disposed in a middle of the two cross beams and provided with a first through hole, and the frame being fixedly connected with the rack main body;
wherein both the two longitudinal beams and the rack main body are welded with the two cross beams.

### Claim 8 (depends on 7)

The movable foundation static load test apparatus according to claim 7, wherein the rack further comprises a plurality of strengthening beams, and the plurality of strengthening beams are disposed in parallel with the longitudinal beams, and are welded with the two cross beams.