Anchor rod drawing instrument support

Abstract

An anchor rod drawing instrument support belongs to the technical field of anchor rod drawing detection devices and comprises two support bodies and C-shaped steel, the C-shaped steel is erected between the two support bodies and fixed by the support bodies, and a plurality of through holes allowing anchor rods to penetrate through are evenly distributed in the bottom of the C-shaped steel. First stiffening rib plates are welded to the two sides of the bottom end of the C-shaped steel in the length direction, and the through hole is located between the two first stiffening rib plates. When the anchor rod drawing detection device is used for anchor rod drawing detection, pressure constraint cannot be formed on a rear anchoring base material at the root of an anchor rod, so that the influence on a detection result is avoided, and the detection result is more reliable. Meanwhile, drawing detection can be carried out on a plurality of anchor rods at the same time, and the working efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of anchor rod pulling detection devices, and specifically relates to an anchor rod pulling instrument bracket. Background Art

[0002] Anchor puller is a necessary on-site testing instrument for quality inspection units. It is mainly used to test the anchoring force of various anchors, steel bars and other anchor bodies. In the anchor pull test, when the bottom of the pulling cylinder is used as a support for the anchor base material, it will also exert pressure on the base material to form a constraint, which improves the anti-pulling ability of the anchor to a certain extent, and the test results are inconsistent with the actual situation.

[0003] Based on the above technical problems, the utility model of application number CN201220134646.5 discloses an auxiliary device for an anchor rod puller, including a puller support and an anchor rod connector located inside the puller; the puller support includes a first upper support ring and a first lower support ring connected by a pressure rod, and the first upper support ring is used to support the puller cylinder; the anchor rod connector includes a second upper support ring and a second lower support ring connected by a pull rod; a conversion screw is fixed inside the second upper support ring, and the conversion screw is connected to an extension rod through a conversion joint, and the extension rod passes through the center hole of the puller cylinder and is fixedly connected to the cylinder through a nut; an anchor plate with an anchor rod connection hole in the center is connected inside the second lower support ring. The utility model ensures the normal operation of the puller through the external bracket to transmit force, and avoids the constraint effect of the cylinder on the substrate. However, the lower support ring in its technical solution is still located near the anchor rod, which reduces the constraint on the substrate, but cannot completely avoid the pressure effect on the substrate. In addition, the bracket can only perform pull-out tests on one anchor rod, and cannot perform pull-out tests on multiple anchor rods at the same time. Utility Model Content

[0004] The invention discloses an anchor puller bracket, aiming to solve the problems in the prior art that the restraining force of the anchor puller bracket on the substrate affects the accuracy of the detection result and that multiple anchors cannot be detected at the same time.

[0005] To achieve the above purpose, the technical solution of this novel invention is:

[0006] A bracket for an anchor puller comprises two bracket bodies and a C-shaped steel. The C-shaped steel is arranged between the two bracket bodies and fixed by the bracket bodies. A plurality of through holes for passing the anchor rods are evenly distributed at the bottom of the C-shaped steel. First stiffening ribs are welded along the length direction on both sides of the bottom end of the C-shaped steel. The through holes are located between the two first stiffening ribs.

[0007] Preferably, the bracket body includes a base and a screw, a sleeve is coaxially provided above the base, the bottom end of the sleeve is fixedly connected to the base by a connecting rod, the sleeve is provided with an internal thread, the screw is threadedly connected to the sleeve and extends upward in the longitudinal direction, and a plurality of fixing seats for fixing C-shaped steel are fixedly connected to the outer wall of the screw.

[0008] Preferably, the fixing seat includes a support plate horizontally welded to the outer wall of the screw rod and a baffle plate longitudinally welded to the outer end of the upper surface of the support plate. The baffle plate is threaded with fixing bolts, and the fixing bolts are used in conjunction with C-shaped steel.

[0009] Preferably, a second stiffening rib is welded between the bottom end of the support plate and the outer wall of the screw rod.

[0010] Preferably, the base comprises a support ring coaxially arranged with the sleeve, a plurality of connecting rods are connected between the top end of the support ring and the bottom end of the sleeve, and the connecting rods are evenly distributed around the axis of the support ring.

[0011] Preferably, a plurality of first threaded holes are evenly distributed on the support ring, and height adjustment bolts penetrate through the first threaded holes.

[0012] Preferably, the through holes are strip holes arranged along the length direction of the C-shaped steel.

[0013] The beneficial effects of the new anchor puller bracket are:

[0014] When the anchor rod pull-out test is performed, the pressure constraint on the rear anchoring substrate at the root of the anchor rod will not be formed, thereby avoiding the influence on the test result, making the test result more reliable. At the same time, the new type can perform pull-out tests on multiple anchor rods at the same time, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 , a schematic diagram of the structure of the new bracket body.

[0016] Figure 2 , a schematic diagram of the structure of the new device when in use.

[0017] Figure 3 , a schematic diagram of the top view structure of the new C-shaped steel.

[0018] Figure 4 , a schematic diagram of the cross-sectional structure of the new model along the AA direction.

[0019] Figure 5 , a schematic diagram of the top view structure of the new base.

[0020] 1. Sleeve; 2. Connecting rod; 3. Support ring; 4. Support plate; 5. Baffle; 6. Second stiffening rib; 7. Fixing bolt; 8. C-shaped steel; 9. First stiffening rib; 10. Anchor rod; 11. Pull cylinder; 12. Through hole; 13. Screw. DETAILED DESCRIPTION

[0021] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0022] Example 1

[0023] An anchor puller bracket, such as Figure 1 , 2 As shown in Figures 3, 4 and 5, it includes two bracket bodies and C-shaped steel 8. The C-shaped steel 8 is erected between the two bracket bodies and fixed by the bracket bodies. A plurality of through holes 12 for passing the anchor rods 10 are evenly distributed at the bottom of the C-shaped steel 8. The first stiffening ribs 9 are welded along the length direction on both sides of the bottom end of the C-shaped steel 8. The through holes 12 are located between the two first stiffening ribs 9. The first stiffening ribs strengthen the strength of the C-shaped steel to avoid bending deformation during the pulling test. The C-shaped steel 8 is used to support the pulling cylinder 11, and the plurality of through holes 12 are used to penetrate the plurality of anchor rods 10, so as to realize the pulling test of the plurality of anchor rods 10 at the same time. The two bracket bodies are used to fix the C-shaped steel and adjust the height of the C-shaped steel.

[0024] Example 2

[0025] Based on Example 1, this embodiment discloses:

[0026] like Figure 1 , 2 As shown, the bracket body includes a base and a screw 13. A sleeve 1 is coaxially arranged above the base. The bottom end of the sleeve 1 is fixedly connected to the base via a connecting rod 2. The sleeve 1 is provided with an internal thread. The screw 13 is threadedly connected to the sleeve 1 and extends upward in the longitudinal direction. A plurality of fixing seats for fixing the C-shaped steel 8 are fixedly connected to the outer wall of the screw 13.

[0027] Example 3

[0028] Based on Example 2, this embodiment discloses:

[0029] like Figure 1 As shown, the fixing seat includes a support plate 4 welded horizontally on the outer wall of the screw rod 13, and a baffle 5 welded longitudinally to the outer end of the upper surface of the support plate 4. The baffle 5 is threaded with a fixing bolt 7, and the fixing bolt 7 is used in conjunction with the C-shaped steel 8. Figure 2As shown, the end of the C-shaped steel is fixed in the fixing seat by fixing bolts.

[0030] like Figure 1 As shown, a second stiffening rib plate 6 is welded between the bottom end of the support plate 4 and the outer wall of the screw rod 13 to improve the connection strength between the support plate and the screw rod.

[0031] Example 4

[0032] Based on Example 3, this embodiment discloses:

[0033] like Figure 1 , 5 As shown, the base includes a support ring 3 coaxially arranged with the sleeve 1 , and a plurality of connecting rods 2 are connected between the top end of the support ring 3 and the bottom end of the sleeve 1 , and the connecting rods 2 are evenly distributed around the axis of the support ring 3 .

[0034] Example 5

[0035] Based on Example 4, this embodiment discloses:

[0036] like Figure 5 As shown, the support ring 3 is evenly distributed with a plurality of threaded holes, and height adjustment bolts (a common technique, not shown in the figure) penetrate through the threaded holes. The height, inclination and horizontality of the base can be fine-tuned by the height adjustment bolts to adapt to the screw angle in actual working conditions.

[0037] like Figure 3 , 4 As shown, the through hole 12 is a strip hole (not shown) arranged along the length direction of the C-shaped steel, the purpose of which is to facilitate the position of the screw, and the length of the strip hole is determined according to construction needs.

[0038] When this new type is used, Figure 2 As shown, the C-shaped steel is fixed between the two bracket bodies, and the anchor rod is passed through the through hole. After the pulling cylinder is installed, the pulling test of multiple anchor rods can be carried out at the same time. During the test, the bracket body is far away from the base material at the root of the anchor rod, avoiding the pressure constraint on the base material, so that the test results are accurate and reliable. If the height of the bracket needs to be adjusted, the C-shaped steel can select a height-matched fixing seat and fine-tune the height by rotating the screw.

Claims

1. An anchor puller bracket, characterized by: It includes two bracket bodies and C-shaped steel. The C-shaped steel is erected between the two bracket bodies and fixed by the bracket bodies. A plurality of through holes for passing anchor rods are evenly distributed at the bottom of the C-shaped steel. First stiffening rib plates are welded along the length direction on both sides of the bottom end of the C-shaped steel. The through holes are located between the two first stiffening rib plates.

2. The anchor puller support according to claim 1, characterized in that: The bracket body includes a base and a screw rod. A sleeve is coaxially arranged above the base. The bottom end of the sleeve is fixedly connected to the base via a connecting rod. The sleeve is provided with an internal thread. The screw rod is threadedly connected to the sleeve and extends upward in the longitudinal direction. A plurality of fixing seats for fixing C-shaped steel are fixedly connected to the outer wall of the screw rod.

3. The anchor puller support according to claim 2, characterized in that: The fixing seat includes a support plate welded horizontally on the outer wall of the screw rod and a baffle welded longitudinally on the outer end of the upper surface of the support plate. The baffle is threaded with fixing bolts, and the fixing bolts are used in conjunction with C-shaped steel.

4. The anchor puller support according to claim 3, characterized in that: A second stiffening rib is welded between the bottom end of the support plate and the outer wall of the screw rod.

5. The anchor puller support as claimed in claim 4, characterized in that: The base comprises a support ring coaxially arranged with the sleeve, a plurality of connecting rods are connected between the top end of the support ring and the bottom end of the sleeve, and the connecting rods are evenly distributed around the axis of the support ring.

6. The anchor puller support according to claim 5, characterized in that: A plurality of first threaded holes are evenly distributed on the support ring, and height-adjusting bolts penetrate through the first threaded holes.

7. The anchor puller support according to claim 6, characterized in that: The through holes are strip holes arranged along the length direction of the C-shaped steel.

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