CN210690217U - Pressure sensor fixing device for model pile loading test - Google Patents
Pressure sensor fixing device for model pile loading test Download PDFInfo
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- CN210690217U CN210690217U CN201921679771.2U CN201921679771U CN210690217U CN 210690217 U CN210690217 U CN 210690217U CN 201921679771 U CN201921679771 U CN 201921679771U CN 210690217 U CN210690217 U CN 210690217U
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- pressure sensor
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- model pile
- cushion block
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Abstract
The utility model provides a model pile is pressure sensor fixing device for load test comprises pressure sensor bearing plate, pressure sensor stop device, universal cushion bracket, pressure sensor bearing plate screw jib, pressure sensor bearing plate set screw, anchor frame. The utility model accurately positions and fixes the pressure sensor through the pressure sensor limiting device; the eccentric compression of the model pile is effectively avoided through the universal cushion block which can freely rotate at any angle; the width and the height of the anchoring frame can be flexibly adjusted to meet the requirements of universal testing machines with various sizes. This pressure sensor fixing device can carry out accurate location and prevent that pressure sensor from droing to unidimensional pressure sensor not, effectively avoids the eccentric pressurized of model stake, and pressure sensor need not to dismantle repeatedly when repeated test many times, can form a complete set and be used for unidimensional universal tester, and pressure sensor fixing device simple structure, stable in structure, convenient to use, strong adaptability.
Description
Technical Field
The utility model relates to an utilize universal tester to carry out model pile pressure sensor fixing device for load test, especially can be used for fixed not unidimensional pressure sensor to can pinpoint pressure sensor central point and put, effectively prevent the eccentric pressurized of model pile, the fixing device that pressure sensor dismantled repeatedly when avoiding repeated load test.
Background
When a model pile loading test is carried out by using a universal testing machine, in order to synchronously measure the pile end pressure of the model pile, a pressure sensor is required to be arranged at the end part of the model pile, the known pressure sensor installation method is that the model pile is directly arranged on the pile top and the center position of the model pile is manually adjusted, and the pressure sensor is required to be disassembled and reinstalled when the loading test is repeated; the position of the pressure sensor is manually adjusted, so that the pressure sensor is difficult to be accurately positioned at the center of the model pile; the model pile is bent or crushed in the loading test process, and the pressure sensor arranged at the top of the model pile is easy to fall off, so that the pressure sensor is damaged and even a person injury accident is caused; the pressure of the model pile in the loading test is usually larger, so that a pressure sensor with a larger measuring range is usually used, the size and the weight of the pressure sensor are correspondingly larger, and the pressure sensor is time-consuming and labor-consuming to disassemble and assemble for many times in repeated loading tests. Therefore, the fixing device which can be suitable for accurately positioning the pressure sensors with different sizes, can avoid repeated disassembly of the pressure sensors in the repeated loading test process, can prevent the pressure sensors from falling off in the loading process and can effectively avoid eccentric compression of the model pile must be provided.
Disclosure of Invention
For the not enough of overcoming current model pile pressure sensor mounting method during load test, the utility model provides a model pile is pressure sensor fixing device for load test, but this fixing device pinpointing unidimensional pressure sensor prevents that pressure sensor from droing in the load test process, need not many times to dismantle pressure sensor at repeated loading in-process to can effectively avoid the eccentric pressurized of model pile.
The utility model provides a technical scheme that its technical problem adopted is: the center of the bottom of the supporting plate of the square pressure sensor is provided with a round hole, so that the square pressure sensor can support the pressure sensor and can enable the measuring end of the pressure sensor to penetrate out of the round hole at the bottom of the supporting plate and to be in close contact with the top of the model pile; symmetrically slotting along the diagonal line of a square pressure sensor support plate, spraying scale marks on a rabbet, and installing a pressure sensor limiting device with an adjustable position in the slot to fix pressure sensors with different diameters and enable the pressure sensors to be positioned at the center; the pressure sensor supporting plate is fixed on the anchoring frame bottom plate through four screw hanging rods, and the height of the screw hanging rods can be adjusted to adapt to the test requirements of pressure sensors with different thicknesses; two sides of the annular universal cushion block bracket are welded with the bottom plate of the anchoring frame and used for supporting and positioning the universal cushion block; the universal cushion block is formed by combining a pair of bottom plates with spherical concave surfaces at the end parts and top plates with spherical convex surfaces at the end parts, the bottom plates and the top plates of the universal cushion block are lubricated by grease so as to freely rotate at any angle, the pressure sensor is contacted with the bottom surface of the universal cushion block due to jacking of the model pile during a loading test, and the eccentric compression of the model pile is effectively avoided by virtue of the angle adjusting effect of the universal cushion block; the anchoring frame is formed by combining two top plates, two bottom plates and four screw pull rods, the two ends of each top plate and the two ends of each bottom plate are symmetrically provided with grooves for fixing the screw pull rods, the width of the anchoring frame can be adjusted by moving the screw pull rods in the grooves, and the height of the anchoring frame can be adjusted by advancing and retreating the fixing screws at the end parts of the screw pull rods, so that the anchoring frame can be fixed on universal testing machine beams with different sizes.
The beneficial effects of the utility model are that, can realize fixing a position not unidimensional pressure sensor and prevent that pressure sensor from droing in model pile loading test, effectively avoid model pile eccentric pressurized, pressure sensor need not to dismantle repeatedly when the repetition test many times, can form a complete set and be applicable to not unidimensional universal tester, pressure sensor fixing device simple structure, stable in structure, convenient to use, strong adaptability.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is the utility model discloses model pile is pressure sensor fixing device axle side view for load test.
Fig. 2 is a detailed structural view of a single element of the pressure sensor fixing device for the model pile loading test of the present invention.
Fig. 3 is the utility model discloses model pile is pressure sensor fixing device for load test theory of operation schematic diagram.
In the figure: 1. a pressure sensor supporting plate, 2, a pressure sensor supporting plate central circular hole, 3, a pressure sensor limiting device fixing groove, 4, a pressure sensor limiting device positioning scale, 5, a pressure sensor limiting device, 6, a universal cushion block bracket, 7, a universal cushion block bottom plate, 8, a universal cushion block top plate, 9, a pressure sensor supporting plate screw suspension rod, 10, a pressure sensor supporting plate positioning screw, 11, an anchoring frame top plate, 12, an anchoring frame bottom plate, 13, an anchoring frame screw pull rod, 14, an anchoring frame positioning screw, 15, a pressure sensor supporting plate screw suspension rod fixing hole, 16, a pressure sensor limiting device positioning screw, 17, an anchoring frame screw pull rod fixing groove, 18, a pressure sensor, 19, a pressure sensor measuring end, 20, a model pile, 21, a universal testing machine beam, 22. universal test machine supporting platform.
Detailed Description
In fig. 1, screw suspender fixing holes are symmetrically formed at four corners of a pressure sensor support plate (1), and the pressure sensor support plate (1) is fixed at the lower part of an anchoring frame bottom plate (12) through four pressure sensor support plate screw suspenders (9) and pressure sensor support plate positioning screws (10); two sides of the universal cushion block bracket (6) are fixed on the lower part of the anchoring frame bottom plate (12) by welding, and the universal cushion block is arranged at the central position of the bottom plate of the universal cushion block bracket (6); the anchoring frame is formed by combining two anchoring frame top plates (11), two anchoring frame bottom plates (12), four anchoring frame screw pull rods (13) and anchoring frame positioning screws (14), and the pressure sensor fixing device is integrally anchored on a cross beam of the universal testing machine through the counter-pulling locking effect of the screw pull rods.
In fig. 2, a round hole is formed in the center of a pressure sensor support plate (1) so that a pressure sensor measuring end (19) penetrates out of the round hole and contacts with a model pile top, four pressure sensor limiting device fixing grooves (3) are formed in the diagonal direction of the pressure sensor support plate (1), and a pressure sensor limiting device positioning scale (4) is sprayed on a groove opening so as to accurately position and fix a pressure sensor limiting device (5); the pressure sensor limiting device (5) consists of a right-angle limiting baffle and a pressure sensor limiting device positioning screw (16), and the pressure sensor limiting device (5) is fixed through the locking action of the positioning screw; the end surface of the universal cushion block top plate (8) is a convex spherical surface, the end surface of the universal cushion block bottom plate (7) is a concave spherical surface, and the two spherical surfaces are lubricated by grease, so that free rotation at any angle can be realized; the universal cushion block bracket (6) consists of a bottom supporting plate and an annular side limiting plate, and a round hole is formed in the center of the bottom supporting plate and is used for enabling the pressure sensor to penetrate out of the bottom supporting plate after being lifted and to be in contact with a universal cushion block bottom plate (7); anchor frame screw pull rod fixed slots (17) are symmetrically formed in two ends of an anchor frame top plate (11) and an anchor frame bottom plate (12), so that the anchor frame screw pull rod (13) can move in a slot to adjust the transverse width of the anchor frame, and meanwhile, the vertical height of the anchor frame is adjusted through advancing and retreating anchor frame positioning screws, so that the anchor frame is stronger in size adaptability.
In fig. 3, after the pressure sensor fixing device is assembled, the pressure sensor fixing device is integrally anchored on a cross beam (21) of the universal testing machine through an anchoring frame; the pressure sensor (18) is arranged on the pressure sensor support plate (1), the pressure sensor (18) is positioned at the center of the pressure sensor support plate (1) through the pressure sensor limiting device (5) and fixed, and the measuring end (19) of the pressure sensor penetrates out of the center round hole (2) of the pressure sensor support plate; the universal cushion block top plate (8) and the universal cushion block bottom plate (7) are combined into a universal cushion block which is integrally arranged on the universal cushion block bracket (6); when the loading test is started, the cross beam (21) of the universal testing machine moves downwards to drive the whole pressure sensor fixing device to move downwards, the pressure sensor (18) moves downwards synchronously, then the measuring end (19) of the pressure sensor touches the top surface of the model pile (20), because the bottom surface of the model pile (20) is supported on the universal testing machine supporting platform (22), the model pile can not move downwards, therefore, the top surface of the model pile (20) can lift the pressure sensor (18), the pressure sensor (18) penetrates through a central hole in the bottom of the universal cushion block bracket (6) and contacts the universal cushion block bottom plate (7) after being lifted, then the universal cushion block bottom plate (7) supports the universal cushion block top plate (8) to ascend and enables the universal cushion block top plate to be contacted with the bottom surface of the universal tester beam (21), and the universal cushion block can freely rotate at any angle, so that the posture and the verticality of the model pile (20) can be adjusted by means of the universal cushion block, and the eccentric compression of the model pile (20) is effectively; in the loading test process, due to the supporting and limiting functions of the pressure sensor fixing device, no matter the model pile (20) is crushed or bent under pressure, the pressure sensor (18), the universal cushion block bottom plate (7) and the universal cushion block top plate (8) cannot fall off; after the loading test is finished, the pressure sensor fixing device can be driven to move upwards by moving the universal testing machine beam (21) upwards, so that the pressure sensor measuring end (19) is separated from the top surface of the model pile (20), and then the model pile (20) can be directly replaced and a new loading test can be repeatedly carried out under the condition that the pressure sensor (18) and the universal cushion block do not need to be disassembled.
The present disclosure is an exemplification and illustration of the invention and is not intended to limit the advantages obtainable by the invention to the particular embodiments illustrated, and it is intended that all variations of the invention, and/or one or more of the advantages realized in some embodiments, which may be realized during the practice of the invention are within the scope of the invention.
Claims (4)
1. The utility model provides a model pile is pressure sensor fixing device for load test, comprises pressure sensor bearing plate, pressure sensor stop device, universal cushion bracket, pressure sensor bearing plate screw jib, pressure sensor bearing plate set screw, anchor frame, its characterized in that: the pressure sensor limiting device is fixed in a fixing groove of a pressure sensor supporting plate through a positioning screw, the pressure sensor supporting plate is fixed below the anchoring frame through a screw hanging rod, the universal cushion block is arranged on a universal cushion block bracket, the universal cushion block bracket is connected with the anchoring frame, and the anchoring frame enables the pressure sensor fixing device to be integrally fixed on a cross beam of the universal testing machine through the opposite pulling action of a screw pull rod.
2. The pressure sensor fixing device for the model pile loading test according to claim 1, characterized in that: the center of the pressure sensor support plate is provided with a round hole for the measuring end of the pressure sensor to penetrate out, the pressure sensor support plate is provided with four fixing grooves along the diagonal direction, and a positioning scale of the pressure sensor limiting device is sprayed at the groove opening for accurately positioning and fixing the pressure sensor.
3. The pressure sensor fixing device for the model pile loading test according to claim 1, characterized in that: the universal cushion block is composed of a top plate with a convex spherical end part and a bottom plate with a concave spherical end part, and the two spherical surfaces are lubricated by grease, so that the universal cushion block can freely rotate at any angle to avoid eccentric compression during a model pile loading test.
4. The pressure sensor fixing device for the model pile loading test according to claim 1, characterized in that: the two ends of the top plate and the bottom plate of the anchoring frame are symmetrically grooved, so that the screw pull rod of the anchoring frame moves in the groove to adjust the transverse width of the anchoring frame, and the positioning screws of the advancing and retreating anchoring frame can adjust the vertical height of the anchoring frame, thereby meeting the requirements of universal testing machines with various sizes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921679771.2U CN210690217U (en) | 2019-10-09 | 2019-10-09 | Pressure sensor fixing device for model pile loading test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921679771.2U CN210690217U (en) | 2019-10-09 | 2019-10-09 | Pressure sensor fixing device for model pile loading test |
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| Publication Number | Publication Date |
|---|---|
| CN210690217U true CN210690217U (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921679771.2U Active CN210690217U (en) | 2019-10-09 | 2019-10-09 | Pressure sensor fixing device for model pile loading test |
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| CN (1) | CN210690217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268648A (en) * | 2020-11-16 | 2021-01-26 | 河海大学 | Baffle box for positioning soil pressure measuring instrument in hole, positioning device and positioning method |
| CN113043212A (en) * | 2021-03-04 | 2021-06-29 | 中国电子科技集团公司第二十九研究所 | Universal puller |
-
2019
- 2019-10-09 CN CN201921679771.2U patent/CN210690217U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268648A (en) * | 2020-11-16 | 2021-01-26 | 河海大学 | Baffle box for positioning soil pressure measuring instrument in hole, positioning device and positioning method |
| CN113043212A (en) * | 2021-03-04 | 2021-06-29 | 中国电子科技集团公司第二十九研究所 | Universal puller |
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