CN215339223U - Test fixture is drawn to grafting type geotechnique's check room open end - Google Patents
Test fixture is drawn to grafting type geotechnique's check room open end Download PDFInfo
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- CN215339223U CN215339223U CN202121820546.3U CN202121820546U CN215339223U CN 215339223 U CN215339223 U CN 215339223U CN 202121820546 U CN202121820546 U CN 202121820546U CN 215339223 U CN215339223 U CN 215339223U
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- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 238000001514 detection method Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 210000000080 chela (arthropods) Anatomy 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007586 pull-out test Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
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Abstract
The utility model discloses a plug-in type geocell open end drawing test fixture which comprises an upper clamping part and a lower clamping part, wherein the upper clamping part is used for connecting a U-shaped plug-in unit of a geocell; the lower clamping part comprises a lower clamp seat and two clamping back plates, the two clamping back plates are vertically arranged side by side, the bottoms of the clamping back plates are connected with the lower clamp seat in a sliding manner, and the clamping back plates can slide left and right along the horizontal direction; the front side of the clamping back plate is fixedly connected with a clamping front plate through bolts. The utility model is used with a tensile machine, can conveniently and rapidly measure the pulling force of the U-shaped plug-in at the opening end of the plug-in type geocell, and can ensure the quality of geocell products and meet the application requirements of engineering in actual engineering.
Description
Technical Field
The utility model belongs to the technical field of geocells, and particularly relates to a drawing test fixture for an opening end of a plug-in type geocell.
Background
The inserted geocell is formed by inserting a plurality of rib belts through U-shaped inserts, the open ends of the inserts are in different connection modes, the inserts can be folded and packaged, are easy to transport, and form a three-dimensional honeycomb reticular structure body after being unfolded. At present, the splicing grid room is widely applied to a plurality of fields of railway, highway subgrade, slope protection, sand prevention and fixation, retaining wall construction and the like, and the bearing capacity of the foundation is effectively improved. The node U-shaped steel nail drawing force parameters need to be detected in engineering application, and due to the fact that the traditional detection means is long in time consumption and ineffective drawing detection is prone to occurring, detection data are discrete and inaccurate, and therefore the inserting type geocell opening end steel nail drawing test fixture is provided to solve the related problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a drawing test fixture for an opening end of a plug-in type geocell, and aims to solve the technical problem.
Therefore, the utility model adopts the following technical scheme:
a plug-in type geocell opening end drawing test fixture comprises an upper clamping part and a lower clamping part, wherein the upper clamping part is used for connecting a U-shaped plug-in unit of a geocell;
the lower clamping part comprises a lower clamp seat and two clamping back plates, the two clamping back plates are vertically arranged side by side, the bottoms of the clamping back plates are connected with the lower clamp seat in a sliding manner, and the clamping back plates can slide left and right along the horizontal direction; the front side of the clamping back plate is fixedly connected with a clamping front plate through bolts.
Furthermore, the bottom of the clamping back plate is connected with a locking screw rod for fixing the position of the clamping back plate.
Furthermore, the top of the lower clamp seat is provided with a horizontal guide rail, and the bottom of the clamping back plate is provided with a guide groove matched with the guide rail.
Furthermore, the bottom of the upper clamping part is provided with a steel wire soft rope which is used for connecting the U-shaped plug-in of the geocell.
Furthermore, the upper clamping part comprises an upper tong seat and a sliding locking sleeve, a through hole is formed in the center of the upper tong seat, a U-shaped groove is formed in the top of the upper tong seat, and the head end of the steel wire soft rope penetrates through the through hole and is clamped in the U-shaped groove; the sliding locking sleeve is in threaded connection with the upper caliper seat, and when the sliding locking sleeve rotates to the highest position, the steel wire soft rope is fixed in the U-shaped groove.
Further, the diameter of the steel wire soft rope is not less than 2 mm.
The utility model has the beneficial effects that:
1. the device is matched with a tensile machine for use, the pulling force of the U-shaped plug-in at the opening end of the plug-in type geocell can be conveniently and quickly measured, and in actual engineering, the quality of geocell products can be ensured and engineering application requirements can be met;
2. the scheme adopts the steel wire soft rope, can accurately align planes, can be connected with U-shaped inserts of different types, and is convenient to clamp by using the soft steel wire for connection;
3. the clamping back plate and the clamping front plate can improve the stability of the clamp body for clamping the sample, increase the stress surface of the sample, and avoid the invalid stretching caused by the falling of the test sample body in the test process;
4. the clamping back plate is connected with the lower clamp seat in a sliding manner, so that a sample can be conveniently placed, taken and adjusted, and the damage form can be directly observed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the structure of the present invention;
FIG. 3 is a schematic view of the connection of the wire rope of the present invention;
FIG. 4 is a schematic view of the present invention in use;
in the figure: 1-upper clamping part, 11-upper clamp seat, 12-sliding locking sleeve, 13-steel wire soft rope, 2-lower clamping part, 21-lower clamp seat, 22-clamping back plate, 23-clamping front plate, 24-bolt, 3-rib belt and 4-U-shaped plug-in unit.
Detailed Description
The utility model will be further described with reference to the accompanying drawings in which:
as shown in fig. 1 and 2, the plug-in type geocell open end pull-out test fixture comprises an upper clamping part 1 and a lower clamping part 2. Lower clamping part 2 includes lower pincers seat 21 and two centre gripping backplate 22, and two centre gripping backplate 22 are vertical to be set up side by side, and the top of lower pincers seat 21 is equipped with the horizontally guide rail, and the bottom of centre gripping backplate 22 is seted up with guide rail complex guide way. The clamping back plate 22 is connected with the lower caliper seat 21 in a sliding mode, the clamping back plate 22 can slide left and right in the horizontal direction, and the bottom of the clamping back plate 22 is connected with a locking screw rod for fixing the position of the clamping back plate 22. The front side of the clamping back plate 22 is fixedly connected with a clamping front plate 23 through bolts 24.
As shown in fig. 3, the upper clamping portion 1 includes an upper caliper seat 11, a sliding locking sleeve 12 and a flexible steel cord 13, a through hole is formed in the center of the upper caliper seat 11, a U-shaped groove is formed in the top of the upper caliper seat 11, and the head end of the flexible steel cord 13 penetrates through the through hole and is clamped in the U-shaped groove. The sliding locking sleeve 12 is sleeved on the upper caliper seat 11, and when the sliding locking sleeve 12 rotates to the highest position, the steel wire soft rope 13 is fixed in the U-shaped groove. The steel wire soft rope 13 is used for connecting the U-shaped inserts 4 of the geocell to provide tension, and the diameter of the steel wire soft rope 13 is not less than 2 mm.
The using method of the utility model is as follows:
as shown in FIG. 4, in use, the lower vise base 21 is first fixed to the lower end of the tensile machine, the upper vise base 11 is fixed to the upper end of the tensile machine, and the lower vise base 21 and the upper vise base 11 are opposed to each other and aligned with each other. Selecting a geocell node strip sample to be tested, vertically placing a rib belt 3 between a clamping back plate 22 and a clamping front plate 23, wherein the top of the rib belt 3 is not higher than the tops of the clamping back plate 22 and the clamping front plate 23, and a U-shaped plug-in 4 is positioned between the two clamping back plates 22.
The U-shaped insert 4 is moved to an intermediate position such that the U-shaped insert 4 is aligned with the central position of the upper jaw mount 11. The two clamping back plates 22 are moved outwards, the reinforcing belts 3 are tensioned and straightened, and then the locking screw rods are rotated to fix the positions of the two clamping back plates 22. The steel wire soft rope 13 is downwards penetrated into the U-shaped plug-in unit, the steel wire soft rope 13 penetrates through the central hole of the upper clamping seat, and the soft rope is fixedly locked in the U-shaped groove of the upper clamping seat through the sliding locking sleeve 12. After clamping is completed, the clamping is ensured to be firm and to be positioned in the middle of the tensile machine.
And after the steps are completed, starting a tensile machine, adjusting the pulling speed to start stretching until the opening end of the U-shaped plug-in unit is damaged. And recording the maximum force value in the test process as a test result, and evaluating the drawing force of the U-shaped steel nail.
It should be noted that the above are only some embodiments of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (6)
1. The plug-in type geocell opening end drawing test fixture is characterized by comprising an upper clamping part (1) and a lower clamping part (2), wherein the upper clamping part (1) is used for connecting a U-shaped plug-in (4) of a geocell;
the lower clamping part (2) comprises a lower clamp seat (21) and two clamping back plates (22), the two clamping back plates (22) are vertically arranged side by side, the bottoms of the clamping back plates (22) are connected with the lower clamp seat (21) in a sliding mode, and the clamping back plates (22) can slide left and right in the horizontal direction; the front side of the clamping back plate (22) is fixedly connected with a clamping front plate (23) through a bolt (24).
2. The plug-in type geocell open end drawing test fixture according to claim 1, wherein a locking screw is connected to the bottom of the clamping back plate (22) for fixing the position of the clamping back plate (22).
3. The plug-in type geocell open end drawing test fixture according to claim 1, wherein a horizontal guide rail is arranged at the top of the lower clamp seat (21), and a guide groove matched with the guide rail is arranged at the bottom of the clamping back plate (22).
4. The plug-in type geocell open end drawing test fixture according to claim 1, wherein a steel wire soft rope (13) is arranged at the bottom of the upper clamping part (1), and the steel wire soft rope (13) is used for connecting the U-shaped plug-in (4) of the geocell.
5. The plug-in type geocell open end drawing test fixture according to claim 4, wherein the upper clamping part (1) comprises an upper tong seat (11) and a sliding locking sleeve (12), a through hole is formed in the center of the upper tong seat (11), a U-shaped groove is formed in the top of the upper tong seat (11), and the head end of the steel wire soft rope (13) penetrates through the through hole and is clamped in the U-shaped groove; the sliding locking sleeve (12) is sleeved on the upper clamp seat (11), and when the sliding locking sleeve (12) rotates to the highest position, the steel wire soft rope (13) is fixed in the U-shaped groove.
6. The plug-in type geocell open end drawing test fixture of claim 4, wherein the diameter of the steel wire soft rope (13) is not less than 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121820546.3U CN215339223U (en) | 2021-08-05 | 2021-08-05 | Test fixture is drawn to grafting type geotechnique's check room open end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121820546.3U CN215339223U (en) | 2021-08-05 | 2021-08-05 | Test fixture is drawn to grafting type geotechnique's check room open end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215339223U true CN215339223U (en) | 2021-12-28 |
Family
ID=79575935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121820546.3U Active CN215339223U (en) | 2021-08-05 | 2021-08-05 | Test fixture is drawn to grafting type geotechnique's check room open end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215339223U (en) |
-
2021
- 2021-08-05 CN CN202121820546.3U patent/CN215339223U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Man Inventor before: Zhang Man Inventor before: Ding Qizhen |