CN213239686U

CN213239686U - Foundation load test pressure-bearing test device with high test precision

Info

Publication number: CN213239686U
Application number: CN202021765749.2U
Authority: CN
Inventors: 张洪星; 郝景粉; 申承明; 秦锡涛
Original assignee: Shandong Tianxing Construction Engineering Testing Co ltd
Current assignee: Shandong Tianxing Construction Engineering Testing Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-18
Anticipated expiration: 2030-08-21

Abstract

The utility model provides a rock-based load test bearing test device that experimental precision is high, including first cylinder, first blind hole has been seted up to first cylinder bottom surface, the second blind hole has been seted up to first cylinder top surface, still be equipped with the jack catch structure that is used for centre gripping ground foundation pile in the first cylinder, first cylinder top is equipped with the second cylinder, second cylinder and second blind hole clearance fit, second cylinder top surface fixed mounting has the disc, T type spout has been seted up to the disc top surface, the third cylinder has been placed to the disc top surface, third cylinder bottom surface fixed mounting has T type slider, T type slider and T type spout sliding fit, the third blind hole has been seted up to third cylinder top surface. This device utilizes jack catch structure can realize the self-holding to the ground stake, and the user need not to carry out extra work to this device fixed on the ground stake, and this device has realized the position freedom adjustment of second cylinder in certain extent with the help of the ingenious structure of T type spout, and the user has reduced the position required precision when installing outside jack, has improved the installation effectiveness.

Description

Foundation load test pressure-bearing test device with high test precision

Technical Field

The utility model belongs to the technical field of the ground detects, specifically speaking is a high rock-based load test bearing test device of experimental precision.

Background

For the foundation load bearing test device, patent number: CN201921217741. X discloses a combination formula bearing plate for compound ground load test, relate to the technical field that building ground detected, can lead to the bearing plate to produce the skew when having solved bearing plate atress uneven, can influence the problem of the precision of ground load test data, it includes the bearing plate body, with the connecting block of one side joint of bearing plate body orientation ground, with connecting block bottom fixed connection's ground stake, the connecting block is towards the one side fixedly connected with fixed plate of the ground stake of affiliated place, bolt and ground stake fixed connection are worn to be equipped with to the fixed plate, the connecting block is seted up flutedly towards one side of bearing plate body, the lug of bearing plate body bottom central point fixedly connected with and recess joint, the utility model has the effect of providing accurate ground load test data. But the device need punch on the one hand and just can install the fixed plate on the foundation pile, and the installation is comparatively loaded down with trivial details, and on the other hand jack lower extreme often can't align completely with the connecting block central line when in actual use, and at this moment the device's pressure-bearing plate body just can't be with the smooth joint of connecting block, brings a great deal of inconvenience for installation work.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high rock-based load test pressure-bearing test device of experimental precision for solve the defect among the prior art.

The utility model discloses a following technical scheme realizes:

the utility model provides a rock-based load test bearing test device that experimental precision is high, including first cylinder, first blind hole has been seted up to first cylinder bottom surface, the second blind hole has been seted up to first cylinder top surface, still be equipped with the jack catch structure that is used for centre gripping ground foundation pile in the first cylinder, first cylinder top is equipped with the second cylinder, second cylinder and second blind hole clearance fit, second cylinder top surface fixed mounting has the disc, T type spout has been seted up to the disc top surface, the third cylinder has been placed to the disc top surface, third cylinder bottom surface fixed mounting has T type slider, T type slider and T type spout sliding fit, the third blind hole has been seted up to third cylinder top surface.

The clamping jaw structure comprises a pressing plate, the pressing plate is arranged in the second blind hole in a sliding fit manner, a plurality of first grooves are formed in the inner side wall of the second blind hole, a plurality of second grooves are formed in the inner side wall of the first blind hole, a through hole is respectively communicated between the inner bottom surface of each first groove and the inner top surface of the corresponding second groove, an L-shaped rod is respectively arranged in each first groove and the corresponding through hole, the transverse part of each L-shaped rod is respectively in sliding fit with the corresponding first groove, the end part of each L-shaped rod is fixedly connected with the periphery of the pressing plate, the vertical part of each L-shaped rod is respectively in sliding fit with the corresponding through hole, the lower end of each L-shaped rod extends into the corresponding second groove, a push plate is respectively and fixedly arranged at the lower end of the vertical part of each L-shaped rod, elastic clamping pieces are respectively arranged in the second grooves, the elastic clamping pieces are arc-shaped, the protruding directions of the elastic clamping pieces, the upper end of the elastic clamping piece is contacted with the outer side of the bottom surface of the corresponding push plate.

According to the rock foundation load test pressure-bearing test device with high test precision, the lower end of the second cylinder is provided with the chamfer.

According to the rock foundation load test pressure-bearing test device with high test precision, the upper part of the periphery of the third cylinder is provided with the plurality of threaded through holes respectively, the inner ends of the threaded through holes are communicated with the inner cavity of the third blind hole, and the threaded through holes are respectively provided with the bolts in a threaded mode.

According to the rock foundation load test pressure-bearing test device with high test precision, the top surface of the T-shaped sliding block is fixedly provided with the stud, the bottom surface of the third cylinder is provided with the threaded hole, and the stud is in threaded connection with the threaded hole.

The utility model has the advantages that: when the device is used, a user firstly sleeves a first cylinder at the upper end of a foundation pile to enable the upper end of the foundation pile to extend into a first blind hole, then sleeves a third cylinder at the lower end of a jack to enable the lower end of the jack to be inserted into a third blind hole, then starts the jack to extend downwards to enable a second cylinder at the lower section to be inserted into a second blind hole, if the jack is not on the same central line with the first cylinder, the user can finely adjust the positions of a disc and the second cylinder below through the cooperation of a T-shaped sliding groove and a T-shaped sliding block, the T-shaped sliding block can slide along the T-shaped sliding groove and can also rotate in the T-shaped sliding groove, so as long as the offset does not exceed the allowable range of the device, the second cylinder can be aligned with the second blind hole below after adjustment, a clamping claw structure can also clamp the foundation pile after the second cylinder is inserted into the second blind hole, and the first cylinder is prevented from displacing on the foundation pile in the test process, when the second cylinder is completely inserted into the second blind hole, the bottom surface of the disc is in contact with the top surface of the first cylinder and is pressed tightly, and then a user can start a pressure bearing test; this device utilizes jack catch structure can realize the self-holding to the ground stake, and the user need not to carry out extra work to this device fixed on the ground stake, and this device has realized the position freedom adjustment of second cylinder in certain extent with the help of the ingenious structure of T type spout, and the user has reduced the position required precision when installing outside jack, has improved the installation effectiveness, is fit for promoting as novel high accuracy rock-based load bearing test device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

A rock foundation load test pressure-bearing test device with high test precision comprises a first cylinder 1, a first blind hole 11 is formed in the bottom surface of the first cylinder 1, the diameter of the first blind hole 11 needs to be slightly larger than the diameter of a foundation pile, a second blind hole 12 is formed in the top surface of the first cylinder 1, a clamping jaw structure used for clamping the foundation pile is further arranged in the first cylinder 1, a second cylinder 2 is arranged above the first cylinder 1, the second cylinder 2 is in clearance fit with the second blind hole 12, a disc 21 is fixedly arranged on the top surface of the second cylinder 2, a T-shaped sliding groove 22 is formed in the top surface of the disc 21, a third cylinder 3 is placed on the top surface of the disc 21, a T-shaped sliding block 31 is fixedly arranged on the bottom surface of the third cylinder 3, the T-shaped sliding block 31 is in sliding fit with the T-shaped sliding groove 22, the T-shaped sliding block 31 is in a stepped cylindrical shape, the T-shaped sliding, the diameter of the third blind hole 32 is in clearance fit with the diameter of the lower end of the jack. When the device is used, a user firstly sleeves the first cylinder 1 at the upper end of a foundation pile to enable the upper end of the foundation pile to extend into the first blind hole 11, then sleeves the third cylinder 3 at the lower end of the jack to enable the lower end of the jack to be inserted into the third blind hole 32, then the user firstly starts the jack to extend downwards to enable the second cylinder 2 at the lower section to be inserted into the second blind hole 12, if the jack is not on the same central line with the first cylinder 1, the user can finely adjust the positions of the lower disc 21 and the lower second cylinder 2 through the cooperation effect of the T-shaped sliding groove 22 and the T-shaped sliding block 31, the T-shaped sliding block 31 can slide along the T-shaped sliding groove 22 and can also rotate in the T-shaped sliding groove 22, so long as the offset does not exceed the allowable range of the device, the second cylinder 2 can be aligned with the lower second blind hole 12 after adjustment, and the clamping jaw structure can also clamp the foundation pile after the second cylinder 2 is inserted into the second blind hole 12, the displacement of the first cylinder 1 on the foundation pile in the test process is prevented, and when the second cylinder 2 is completely inserted into the second blind hole 12 and the bottom surface of the disc 21 is in contact with and pressed against the top surface of the first cylinder 1, a user can start a pressure-bearing test; this device utilizes jack catch structure can realize the self-holding to the ground stake, and the user need not to carry out extra work to this device fixed on the ground stake, and this device has realized the position freedom adjustment of second cylinder 2 in certain extent with the help of the ingenious structure of T type spout, and the user has reduced the position required precision when installing outside jack, has improved the installation effectiveness, is fit for promoting as novel high accuracy rock-based load bearing test device.

Specifically, as shown in fig. 1, the jaw structure of this embodiment includes a pressing plate 4, the pressing plate 4 is disposed in the second blind hole 12 in a sliding fit manner, a plurality of first grooves 13 are disposed on an inner sidewall of the second blind hole 12, a plurality of second grooves 14 are disposed on an inner sidewall of the first blind hole 11, a through hole 15 is respectively disposed between an inner bottom surface of each first groove 13 and an inner top surface of the corresponding second groove 14, an L-shaped rod 41 is disposed in each first groove 13 and the corresponding through hole 15, a transverse portion of each L-shaped rod 41 is respectively in a sliding fit with the corresponding first groove 13, and an end portion of each L-shaped rod 41 is fixedly connected to an outer periphery of the pressing plate 4, a vertical portion of each L-shaped rod 41 is respectively in a sliding fit with the corresponding through hole 15, and a lower end of each L-shaped rod 41 extends into the corresponding second groove 14, a pushing plate 42 is fixedly mounted at a lower end of the vertical portion of each, the lower end of the elastic clamping piece 43 is fixedly connected with the lower end of the inner end face of the groove of the corresponding second groove 14, and the upper end of the elastic clamping piece 43 is contacted with the outer side of the bottom surface of the corresponding push plate 42. When the second cylinder 2 is inserted into the second blind hole 12 from above, the second cylinder 2 can press the pressing plate 4 downwards to the bottom of the second blind hole 12, the pressing plate 4 can simultaneously drive the surrounding L-shaped rods 41 to slide downwards in the first grooves 13 and the through holes 15, the pushing plate 42 at the lower end of the L-shaped rod 41 can downwards extrude the elastic clamping pieces 43 in the second grooves 14, the middle part of the elastic clamping pieces 43 can arch towards the central line direction of the first blind hole 11 after being extruded, so as to clamp the periphery of the foundation pile extending into the first blind hole 11, and realize the clamping and fixing functions of the foundation pile, when the second cylinder 2 is pulled out from the second blind hole 12, the elastic clamping pieces 43 can restore to the stretching state and release the clamping with the periphery of the foundation pile, and push the corresponding pushing plate 42 upwards, and the pushing plate 42 can drive the L-shaped rods 41 and the pressing plate 4 to upwards slide and restore to the original state.

Specifically, as shown in fig. 1, the lower end of the second cylinder 2 of this embodiment is provided with a chamfer. This configuration can facilitate the user's insertion of the second cylinder 2 into the second blind hole 12.

Further, as shown in fig. 1, in this embodiment, a plurality of threaded through holes 33 are respectively formed in the upper portion of the outer periphery of the third cylinder 3, inner ends of the threaded through holes 33 are communicated with the inner cavity of the third blind hole 32, bolts 34 are respectively installed in the threaded through holes 33 in a threaded manner, and heads of the bolts 34 are located on the outer side of the third cylinder. After the lower end of the jack is inserted into the third blind hole 32, the user can tighten the bolts 34 around the third cylinder 3 to fix the lower end of the jack in the third blind hole 32.

Furthermore, as shown in fig. 1, a stud 311 is fixedly installed on the top surface of the T-shaped slider 31, a threaded hole 312 is formed on the bottom surface of the third cylinder 3, and the stud 311 is in threaded connection with the threaded hole 312. When the user need separate third cylinder 3 and disc 21, the user only need rotate third cylinder 3 on disc 21, makes double-screw bolt 311 withdraw from in the screw hole 312, separation third cylinder 3 and disc 21 that can be convenient, and the mode that adopts the screw thread fixed can be convenient for the user to carry out the split to this device and overhaul.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a rock-based load test pressure-bearing test device that experimental precision is high, includes first cylinder (1), its characterized in that: first blind hole (11) have been seted up to first cylinder (1) bottom surface, second blind hole (12) have been seted up to first cylinder (1) top surface, still be equipped with the jack catch structure that is used for centre gripping ground foundation pile in first cylinder (1), first cylinder (1) top is equipped with second cylinder (2), second cylinder (2) and second blind hole (12) clearance fit, second cylinder (2) top surface fixed mounting has disc (21), T type spout (22) have been seted up to disc (21) top surface, third cylinder (3) have been placed to disc (21) top surface, third cylinder (3) bottom surface fixed mounting has T type slider (31), T type slider (31) and T type spout (22) sliding fit, third blind hole (32) have been seted up to third cylinder (3) top surface.

2. The pressure-bearing test device for the foundation load test with high test precision according to claim 1, which is characterized in that: the clamping jaw structure comprises a pressing plate (4), the pressing plate (4) is arranged in a second blind hole (12) in a sliding fit manner, a plurality of first grooves (13) are formed in the inner side wall of the second blind hole (12), a plurality of second grooves (14) are formed in the inner side wall of a first blind hole (11), a through hole (15) is respectively communicated between the inner bottom surface of each first groove (13) and the inner top surface of the corresponding second groove (14), an L-shaped rod (41) is respectively arranged in each first groove (13) and the corresponding through hole (15), the transverse part of each L-shaped rod (41) is respectively in sliding fit with the corresponding first groove (13), the end part of each L-shaped rod is fixedly connected with the periphery of the pressing plate (4), the vertical part of each L-shaped rod (41) is respectively in sliding fit with the corresponding through hole (15), the lower end of each L-shaped rod extends into the corresponding second groove (14), and the lower end, elastic clamping pieces (43) are respectively arranged in the second grooves (14), the elastic clamping pieces (43) are arc-shaped, the protruding direction of the elastic clamping pieces faces the center line of the second blind hole (12), the lower ends of the elastic clamping pieces (43) are fixedly connected with the lower ends of the inner end faces of the grooves of the corresponding second grooves (14), and the upper ends of the elastic clamping pieces (43) are in contact with the outer sides of the bottom faces of the corresponding push plates (42).

3. The pressure-bearing test device for the foundation load test with high test precision according to claim 1, which is characterized in that: the lower end of the second cylinder (2) is provided with a chamfer.

4. The pressure-bearing test device for the foundation load test with high test precision according to claim 1, which is characterized in that: a plurality of threaded through holes (33) are respectively formed in the upper portion of the periphery of the third cylinder (3), the inner ends of the threaded through holes (33) are communicated with the inner cavity of the third blind hole (32), and bolts (34) are respectively installed on the threaded through holes (33) in a threaded mode.

5. The pressure-bearing test device for the foundation load test with high test precision according to claim 1, which is characterized in that: the top surface of the T-shaped sliding block (31) is fixedly provided with a stud (311), the bottom surface of the third cylinder (3) is provided with a threaded hole (312), and the stud (311) is in threaded connection with the threaded hole (312).