CN212801691U - Hollow part drawing testing device in anchor rod - Google Patents
Hollow part drawing testing device in anchor rod Download PDFInfo
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- CN212801691U CN212801691U CN202021114234.6U CN202021114234U CN212801691U CN 212801691 U CN212801691 U CN 212801691U CN 202021114234 U CN202021114234 U CN 202021114234U CN 212801691 U CN212801691 U CN 212801691U
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- anchor rod
- matched
- hollow part
- thread head
- outer side
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Abstract
The utility model provides a hollow part drawing test device in an anchor rod, which comprises a hollow part in the anchor rod, an anchor rod solid part, a main thread head and an auxiliary thread head, wherein the auxiliary thread head is matched and connected with the anchor rod solid part; the support rod is matched in the hollow part of the anchor rod, and the lower surface of the inner bushing is attached to the upper end surface of the hollow part of the anchor rod and matched on the outer side surface of the support rod; the upper part of the lapping sleeve is matched with the outer side surface of the inner lining, and the lower part of the lapping sleeve is matched with the outer side surface of the hollow part of the anchor rod; the main thread head is in threaded connection and matched with the outer side surface of the overlapping sleeve. The utility model relates to a screw thread that possesses inside lining support connection draws supplementaryly, when aiming at the stock and drawing the test, supports the well kenozooecium of stock, avoids drawing to carry excessively and leads to well kenozooecium to warp seriously, influences the test performance.
Description
Technical Field
The utility model relates to draw test equipment technical field, in particular to well kenozooecium draws testing arrangement in stock.
Background
The anchor rod is driven into the slope surface to reinforce the slope surface stability by the aid of the foundation and slope surface reinforcing tools commonly used in the building engineering during anchor rod construction.
In some cases, in order to perform maintenance treatment on the inside of some building construction structures, it is also necessary to provide a grouting function for the anchor rod while driving the anchor rod, and after driving the anchor rod, concrete mortar is fed from the anchor rod into the inside of the construction structure by using a grouting machine.
The anchor rod is provided with a solid part and a hollow part, wherein the solid part is used for screwing a grouting machine, and the hollow part is used for conveying grouting. Because the grouting anchor rod is in a slender rod-shaped structure, the anchor rod needs to be selected according to the working environment of an engineering project, and the tensile load performance of the anchor rod needs to be tested.
The hollow portion of stock has the grout passageway, consequently need put heavily the test to here, nevertheless in current test technique of drawing, adopts screw thread head or vice instrument to carry out the centre gripping to the stock, at the drawing in-process, under the effect of radial force, hollow portion is very easy to be out of shape and breaks or reduces and drops, consequently can not normally draw the test.
SUMMERY OF THE UTILITY MODEL
For solving the shortcoming of the prior art, the utility model provides a well kenozooecium draws testing arrangement in stock.
The utility model provides a technical scheme is: a drawing test device for a hollow part of an anchor rod comprises the hollow part of the anchor rod, an anchor rod solid part, a main thread head and an auxiliary thread head, wherein the auxiliary thread head is connected with the anchor rod solid part in a matched manner; the support rod is matched in the hollow part of the anchor rod, and the lower surface of the inner bushing is attached to the upper end surface of the hollow part of the anchor rod and matched on the outer side surface of the support rod; the upper part of the lapping sleeve is matched with the outer side surface of the inner lining, and the lower part of the lapping sleeve is matched with the outer side surface of the hollow part of the anchor rod; the main thread head is in threaded connection and matched with the outer side surface of the overlapping sleeve.
The utility model relates to a screw thread that possesses inside lining support connection draws supplementaryly, when aiming at the stock and drawing the test, supports the well kenozooecium of stock, avoids drawing to carry excessively and leads to well kenozooecium to warp seriously, influences the test performance. Specifically, as shown in fig. 1 and 2, the device for testing the drawing of the hollow part of the anchor rod comprises the hollow part of the anchor rod, a solid part of the anchor rod, a main thread head and an auxiliary thread head, wherein the main thread head and the auxiliary thread head are pulled by hydraulic equipment, threads are processed on the outer surfaces of the hollow part of the anchor rod and the solid part of the anchor rod, and the auxiliary thread head is in threaded fit connection with the solid part of the anchor rod; the utility model also comprises a support rod, an inner bushing and a lapping sleeve, wherein the support rod, the inner bushing and the lapping sleeve are made of steel materials, the support rod is in a solid rod shape with external threads, the inner bushing and the lapping sleeve are in a steel sleeve structure with double-sided threads, but the upper end of the inner bushing is formed with a flanging, the lapping sleeve is in a step structure, the diameter of the upper part is larger than that of the lower part, and the flanging of the inner bushing is laminated on the top surface of the lapping sleeve during installation; after the installation is finished, the supporting rod is matched in the hollow part of the anchor rod, the upper end of the supporting rod is exposed, and the lower surface of the inner bushing is attached to the upper end surface of the hollow part of the anchor rod and matched on the outer side surface of the supporting rod; the upper part of the lapping sleeve is matched with the outer side surface of the inner lining, and the lower part of the lapping sleeve is matched with the outer side surface of the hollow part of the anchor rod; the main thread head is in threaded connection and matched with the outer side surface of the overlapping sleeve. When main thread head and vice thread head draw from top to bottom, the cavity in the stock can not lead to the cavity in the stock to draw and warp and drop suddenly because there is the support of bracing piece to and the laminating protection of neck bush and overlap joint cover, lead to normally drawing.
Furthermore, the auxiliary thread head is integrally formed with a stepped connecting part, and the stepped connecting part is matched at the junction of the hollow part and the solid part of the anchor rod. The stepped connecting part has the effect of enhancing the pulling load, the position of the stepped connecting part is positioned at the junction of the hollow part of the anchor rod and the solid part of the anchor rod, and the junction of the hollow part of the anchor rod and the solid part of the anchor rod is a part easy to break, so that the stepped connecting part covers and is connected with the junction, and the stability of the pulling load can be enhanced.
Furthermore, a thread counter bore corresponding to the support rod is arranged inside the main thread head, and the upper end of the support rod is matched in the thread counter bore. Draw and need make the interior outer tissue of the hollow portion of stock receive even power of carrying that draws, consequently, the bracing piece cooperation is in the hollow portion of stock, nevertheless for drawing the year in step, the bracing piece also need receive the power of carrying that draws, consequently is equipped with the screw thread counter bore that corresponds the bracing piece in main thread head inside, the cooperation of upper end of the support bar is in the screw thread counter bore.
Furthermore, an annular thread groove is formed in the upper end face of the hollow portion of the anchor rod, a thread connecting ring is formed on the lower end face of the inner bushing in a protruding mode, and the thread connecting ring is matched with the annular thread groove. The annular thread groove and the thread connecting ring are of integrally formed structures and are matched with each other correspondingly, and the purpose is to strengthen the pulling and loading stability.
The utility model has the beneficial technical effects that: the utility model discloses it is supplementary to possess the screw thread that the inside lining supports the connection, when aiming at the stock and drawing the test, supports the well kenozooecium of stock, avoids drawing to carry excessively and leads to well kenozooecium to warp seriously, influences the test performance. When main thread head and vice thread head draw from top to bottom, the cavity in the stock can not lead to the cavity in the stock to draw and warp and drop suddenly because there is the support of bracing piece to and the laminating protection of neck bush and overlap joint cover, lead to normally drawing.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is an enlarged schematic view of detail A of FIG. 1;
in the figure, 1, a secondary thread head, 2, an anchor rod solid part, 3, a stepped connecting part, 4, an anchor rod hollow part, 5, a support rod, 6, a lapping sleeve, 7, an inner lining, 8, a main thread head, 9, a thread connecting ring, 10 and an annular thread groove.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, the relative terms "upper", "lower", "left", "right", "inner", "outer" and other position indication positions are only based on the position shown in the drawings to simplify the description of the present invention, but not the position and structure that the components must have, and thus, the limitation of the present invention cannot be understood.
Example 1
A drawing test device for a hollow part of an anchor rod comprises the hollow part 4 of the anchor rod, a solid part 2 of the anchor rod, a main thread head 8 and an auxiliary thread head 1, wherein the auxiliary thread head 1 is connected with the solid part 2 of the anchor rod in a matching way; the anchor rod is characterized by further comprising a support rod 5, an inner bushing 7 and an overlap joint sleeve 6, wherein the support rod 5 is matched in the anchor rod hollow part 4, and the lower surface of the inner bushing 7 is attached to the upper end surface of the anchor rod hollow part 4 and matched on the outer side surface of the support rod 5; the upper part of the lapping sleeve 6 is matched on the outer side surface of the inner lining 7, and the lower part is matched on the outer side surface of the anchor rod hollow part 4; the main thread head 8 is in threaded fit on the outer side face of the overlap sleeve 6.
The utility model relates to a screw thread that possesses inside lining support connection draws supplementaryly, when aiming at the stock and drawing the test, supports the well kenozooecium of stock, avoids drawing to carry excessively and leads to well kenozooecium to warp seriously, influences the test performance. Specifically, as shown in fig. 1 and 2, the anchor rod hollow part drawing test device comprises an anchor rod hollow part 4, an anchor rod solid part 2, a main thread head 8 and an auxiliary thread head 1, wherein the main thread head 8 and the auxiliary thread head 1 are used for drawing load by adopting hydraulic equipment, threads are processed on the outer surfaces of the anchor rod hollow part 4 and the anchor rod solid part 2, and the auxiliary thread head 1 is in threaded fit connection with the anchor rod solid part 2; the utility model also comprises a support rod 5, an inner bushing 7 and an overlap joint sleeve 6, wherein the support rod 5, the inner bushing 7 and the overlap joint sleeve 6 are all made of steel materials, the support rod 5 is in the shape of a solid rod with external threads, the inner bushing 7 and the overlap joint sleeve 6 are in a steel sleeve structure with double-sided threads, but the upper end of the inner bushing 7 is formed with a flanging, the overlap joint sleeve 6 is in a step structure, the diameter of the upper part is larger than that of the lower part, and the flanging of the inner bushing 7 is attached to the top surface of the overlap joint sleeve 6 during; after the installation is finished, the support rod 5 is matched in the hollow part 4 of the anchor rod, the upper end of the support rod is exposed, and the lower surface of the inner bushing 7 is attached to the upper end surface of the hollow part 4 of the anchor rod and matched on the outer side surface of the support rod 5; the upper part of the lapping sleeve 6 is matched on the outer side surface of the inner lining 7, and the lower part is matched on the outer side surface of the anchor rod hollow part 4; the main thread head 8 is in threaded fit on the outer side face of the overlap sleeve 6. When the main thread head 8 and the auxiliary thread head 1 are drawn up and down, the hollow part 4 of the anchor rod cannot be drawn out and deformed and suddenly fall off due to the support of the support rod 5 and the joint protection of the inner bushing 7 and the lap joint sleeve 6, so that the normal drawing cannot be performed.
Further, the secondary thread head 1 is integrally formed with a stepped connecting portion 3, and the stepped connecting portion 3 is fitted at the boundary between the bolt hollow portion 4 and the bolt solid portion 2. The stepped connecting part 3 has the effect of enhancing the pulling load, the position of the stepped connecting part is positioned at the junction of the hollow part 4 of the anchor rod and the solid part 2 of the anchor rod, and the junction of the hollow part 4 of the anchor rod and the solid part 2 of the anchor rod is a part easy to break, so that the stepped connecting part 3 covers and connects the junction, and the stability of the pulling load can be enhanced.
Furthermore, a thread counter bore corresponding to the support rod 5 is arranged inside the main thread head 8, and the upper end of the support rod 5 is matched in the thread counter bore. Drawing needs to make the interior outer tissue of the hollow portion 4 of anchor bolt receive even power of carrying that draws, consequently, bracing piece 5 cooperation is in hollow portion 4 of anchor bolt, nevertheless for drawing the year in step, bracing piece 5 also need receive the power of carrying that draws, consequently is equipped with the screw thread counter bore that corresponds bracing piece 5 inside the main thread head 8, and the cooperation of bracing piece 5 upper end is in the screw thread counter bore.
Furthermore, an annular thread groove 10 is formed on the upper end surface of the hollow part 4 of the anchor rod, a thread connecting ring 9 is convexly formed on the lower end surface of the inner bushing 7, and the thread connecting ring 9 is matched with the annular thread groove 10. The annular thread groove 10 and the thread connecting ring 9 are of an integrally formed structure and are matched with each other correspondingly, so that the tensile stability is enhanced.
The foregoing is a preferred embodiment of the present invention, and it should be understood that those skilled in the art can derive the related technical solutions through logic analysis, reasoning or experiment based on the present invention without creative efforts, and therefore, these related technical solutions should be within the protection scope of the present claims.
Claims (4)
1. The utility model provides a hollow portion of stock draws testing arrangement, includes hollow portion (4), stock solid portion (2), main thread head (8) and vice thread head (1) in the stock, and vice thread head (1) is connected its characterized in that with stock solid portion (2) cooperation: the anchor rod is characterized by further comprising a support rod (5), an inner bushing (7) and an overlapping sleeve (6), wherein the support rod (5) is matched in the anchor rod hollow part (4), and the lower surface of the inner bushing (7) is attached to the upper end surface of the anchor rod hollow part (4) and matched on the outer side surface of the support rod (5); the upper part of the lapping sleeve (6) is matched on the outer side surface of the inner lining (7), and the lower part of the lapping sleeve is matched on the outer side surface of the anchor rod hollow part (4); the main thread head (8) is in threaded fit with the outer side surface of the lap joint sleeve (6).
2. The hollow part drawing test device of the anchor rod according to claim 1, characterized in that: the auxiliary thread head (1) is integrally formed with a stepped connecting part (3), and the stepped connecting part (3) is matched at the junction of the anchor rod hollow part (4) and the anchor rod solid part (2).
3. The hollow part drawing test device of the anchor rod according to claim 2, characterized in that: the main thread head (8) is internally provided with a thread counter bore corresponding to the support rod (5), and the upper end of the support rod (5) is matched in the thread counter bore.
4. A hollow part pull test device of an anchor rod according to claim 3, wherein: an annular thread groove (10) is formed in the upper end face of the hollow portion (4) of the anchor rod, a thread connecting ring (9) is formed in the lower end face of the inner lining (7) in a protruding mode, and the thread connecting ring (9) is matched with the annular thread groove (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021114234.6U CN212801691U (en) | 2020-06-16 | 2020-06-16 | Hollow part drawing testing device in anchor rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021114234.6U CN212801691U (en) | 2020-06-16 | 2020-06-16 | Hollow part drawing testing device in anchor rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212801691U true CN212801691U (en) | 2021-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021114234.6U Active CN212801691U (en) | 2020-06-16 | 2020-06-16 | Hollow part drawing testing device in anchor rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212801691U (en) |
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2020
- 2020-06-16 CN CN202021114234.6U patent/CN212801691U/en active Active
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