Anchor rod detection device for isolating contact between loading equipment and counter-force surface

Abstract

The utility model provides an anchor rod detection device for isolating contact between loading equipment and a counter-force surface, which comprises an upper base plate and a lower base plate, a plurality of groups of upright posts are uniformly distributed between the upper base plate and the lower base plate, two ends of each upright post are respectively and fixedly connected with the upper base plate and the lower base plate, the upper base plate and the lower base plate are respectively provided with a through hole, and the axes of the two through holes are overlapped; the at least one group of clamping pieces are slidably arranged on the corresponding upright posts through second bolts and are used for clamping a measuring instrument; through mutual cooperation of the upper base plate and the lower base plate, the anchor rod needing to be detected penetrates through the center penetrating hole, the lower base plate makes contact with the building face and abuts against the building face to form a stable base, then drawing equipment is placed on the upper base plate to conduct drawing operation on the anchor rod, and the situation that component force forming a certain angle with the axial direction of the anchor rod is generated in the non-parallel state is avoided. The component force may cause the anchor rod to be stressed by complex stress such as shearing, bending and the like while the anchor rod is pulled, and the detection result is inaccurate.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering detection, in particular to an anchor rod detection device for isolating loading equipment from contacting a reaction surface. Background Art

[0002] Anchor bolts are also used in projects such as slope reinforcement, tunnels, and dams due to their simple structure, low cost, and strong engineering adaptability. When an anchor bolt penetrates the subsurface and connects with the structure, it generates an anchoring force, which is the bond between the anchoring portion of the bolt and the rock mass. This force is tested using an anchor bolt pullout tester.

[0003] For example, the Chinese utility model with announcement number CN220768187U discloses "an anchor cable detection device", which includes an upper load-bearing plate and a lower load-bearing plate. The upper load-bearing plate is rotatably mounted on the lower load-bearing plate, and legs are integrally formed on both sides of the lower load-bearing plate. A limiting structure is also provided between the upper load-bearing plate and the lower load-bearing plate. The limiting structure is used to limit the angle between the upper load-bearing plate and the lower load-bearing plate. An oblong through hole A is provided on the upper load-bearing plate, which passes through the lower load-bearing plate. An anchor cable dynamometer is fixed on the surface of the upper load-bearing plate away from the lower load-bearing plate, and one end of the anchor cable is fixed to the anchor cable dynamometer after passing through the oblong through hole. Construction personnel can operate the limiting structure to enable the anchor cable dynamometer to pull the anchor cable along the direction of the anchor cable installation, thereby ensuring accurate detection of the anchor cable pulling force and avoiding bending of the anchor cable, which may cause shearing at the bent part and damage to the concrete or soil at the root of the slope, thus affecting the determination of the detection conclusion.

[0004] However, when the above-mentioned device is used to perform a pull-out test on the anchor rod, the direction of the force pulling the anchor rod is not parallel to the extension direction of the anchor rod. The non-parallelism will produce a component force at a certain angle to the axial direction of the anchor rod. This component force may cause the anchor rod to be subjected to complex stresses such as shear and bending while being pulled, resulting in inaccurate test results. Utility Model Content

[0005] In response to the shortcomings of the existing technology, the utility model provides an anchor rod detection device that isolates the loading equipment and the contact of the reaction force surface, which solves the problem in the existing technology that when the direction of the pulling anchor rod force is not parallel to the extension direction of the anchor rod during the pulling detection of the anchor rod, the detection result will be inaccurate.

[0006] According to an embodiment of the present utility model, an anchor rod detection device for isolating the contact between the loading equipment and the reaction surface includes an upper pad and a lower pad, and multiple groups of columns are distributed between the upper pad and the lower pad, and the two ends of each column are fixedly connected to the upper pad and the lower pad respectively, and the upper pad and the lower pad are provided with through holes, and the axes of the two through holes overlap; at least one group of clamping parts can be slidably set on the corresponding columns through a second bolt, and is used to clamp the measuring instrument.

[0007] Compared with the prior art, the present invention has the following beneficial effects: through the cooperation between the upper pad and the lower pad, the anchor rod to be tested is passed through the through hole, so that the lower pad contacts and abuts the building surface to form a stable base, and then the pulling equipment is placed on the upper pad to pull the anchor rod. In this state, the direction of the tension on the anchor rod is parallel to the extension direction of the anchor rod, which can avoid the generation of a component force at a certain angle to the axial direction of the anchor rod in the non-parallel state. This component force may cause the anchor rod to be subjected to complex stresses such as shearing and bending while being pulled. In this case, the measured pulling force will not accurately reflect the axial anchoring force of the anchor rod. At the same time, under the setting of the clamping part, the measuring instrument for detecting the change of the anchor rod can be set in the space between the upper pad and the lower pad, which can accurately detect the changes of the anchor rod during the pulling test process.

[0008] Preferably, each clamping member includes an adjusting arm sleeved on the corresponding column and a clamping arm slidably connected to the adjusting arm, and the second bolt is threadedly connected to the adjusting arm and abuts against the column.

[0009] Preferably, a limit block is provided on the surface where each adjusting arm contacts the column, a travel groove is provided on the corresponding column, and the limit block is located in the corresponding travel groove.

[0010] Preferably, each adjusting arm is provided with a receiving groove, and one end of the corresponding clamping arm is slidably arranged in the receiving groove, wherein a first bolt is threadedly connected to the adjusting arm, and the first bolt abuts against the clamping arm.

[0011] Preferably, a limit plate is provided at one end of the clamping arm located in the receiving groove.

[0012] Preferably, a reinforcement groove is provided on the side wall of each receiving groove, and a reinforcement strip is provided on each clamping arm, and the reinforcement strip is located in the corresponding reinforcement groove.

[0013] Preferably, a plurality of positioning holes are evenly distributed on the lower pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present utility model.

[0015] Figure 2 It is a cross-sectional view of an embodiment of the present utility model.

[0016] Figure 3 Schematic diagram of the structure of the clamping member in the embodiment of the present utility model.

[0017] In the above drawings: 1. Upper pad; 101. Through hole; 2. Lower pad; 201. Positioning hole; 202. Column; 203. Travel slot; 3. Adjustment arm; 301. Limit block; 302. Storage slot; 303. Reinforcement slot; 304. First bolt; 305. Second bolt; 4. Clamping arm; 401. Reinforcement strip; 402. Limit plate. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 3 As shown, an embodiment of the utility model proposes an anchor rod detection device for isolating the loading equipment and the contact between the reaction surface, which includes an upper pad 1 and a lower pad 2, and multiple groups of columns 202 are evenly distributed between the upper pad 1 and the lower pad 2, and each of the two ends of the column 202 is fixedly connected to the upper pad 1 and the lower pad 2 respectively, and a through hole 101 is opened on the upper pad 1 and the lower pad 2, and the axes of the two through holes 101 overlap; a clamping member, at least one group, can be slidably set on the corresponding column 202 through a second bolt 305, for clamping a measuring instrument.

[0020] The detailed working process of this embodiment is as follows: the upper pad 1 is used to place the drawing equipment, and the lower pad 2 is used to contact with the building surface to form a stable base.

[0021] Through the mutual cooperation of the upper pad 1 and the lower pad 2, the anchor rod to be tested is passed through the through hole 101, so that the lower pad 2 contacts and abuts the building surface to form a stable base, and then the pulling equipment is placed on the upper pad 1 to pull the anchor rod. In this state, the direction of the tension on the anchor rod is parallel to the extension direction of the anchor rod, which can avoid the generation of a component force at a certain angle to the axial direction of the anchor rod in the non-parallel state. This component force may cause the anchor rod to be subjected to complex stresses such as shearing and bending while being pulled. In this case, the measured pulling force will not accurately reflect the axial anchoring force of the anchor rod. At the same time, under the setting of the clamping part, the measuring instrument for detecting the change of the anchor rod can be set in the space between the upper pad 1 and the lower pad 2, which can accurately detect the changes of the anchor rod during the pulling test process.

[0022] The pulling equipment and measuring instrument in this embodiment are respectively a jack and a dial indicator, both of which are commonly used in engineering construction and will not be described in detail here. Of course, there are more than the above two types of pulling equipment and measuring instruments commonly used in engineering construction. Appropriate equipment can be selected for pulling detection operations according to actual conditions.

[0023] like Figure 2 As shown, each clamping member includes an adjusting arm 3 sleeved on the corresponding column 202 and a clamping arm 4 slidably connected to the adjusting arm 3 , and a second bolt 305 is threadedly connected to the adjusting arm 3 and abuts against the column 202 .

[0024] The detailed working process of this embodiment is as follows: the clamping arm 4 is used to install the dial indicator. Under the setting of the second bolt 305, the position of the clamping part corresponding to the column 202 can be adjusted. After adjusting to the appropriate position, tighten the second bolt 305 so that it abuts against the column 202 to fix it.

[0025] like Figure 3 As shown, a limit block 301 is provided on the surface of each adjusting arm 3 that contacts the column 202 , and a travel groove 203 is provided on the corresponding column 202 , and the limit block 301 is located in the corresponding travel groove 203 .

[0026] The detailed working process of this embodiment is as follows: under the setting of the limit block 301 and the travel groove 203, the adjustment arm 3 will not rotate during the movement along the travel groove 203 on the column 202, ensuring stability during the adjustment process.

[0027] like Figure 3 As shown, each adjusting arm 3 is provided with a receiving groove 302 , and one end of the corresponding clamping arm 4 is slidably arranged in the receiving groove 302 , wherein a first bolt 304 is threadedly connected to the adjusting arm 3 , and the first bolt 304 abuts against the clamping arm 4 .

[0028] The detailed working process of this embodiment is as follows: one end of the clamping arm 4 is slidably set in the receiving groove 302, so that the clamping arm 4 can realize the telescopic function, and is also adapted to the clamping dial indicator to detect anchor rods of different diameters. The function of the first bolt 304 is to limit and fix the clamping arm 4 in the receiving groove 302. When the clamping arm 4 is adjusted to the appropriate position, tighten the first bolt 304 so that it abuts against the clamping arm 4 to fix the clamping arm 4.

[0029] like Figure 3 As shown, a limiting plate 402 is provided at one end of the clamping arm 4 located in the receiving groove 302 .

[0030] The detailed working process of this embodiment is as follows: the function of the limiting plate 402 is to prevent the clamping arm 4 from falling out of the receiving slot 302 during the adjustment process.

[0031] like Figure 3 As shown, a reinforcement groove 303 is opened on the side wall of each receiving groove 302 , and a reinforcement strip 401 is provided on each clamping arm 4 , and the reinforcement strip 401 is located in the corresponding reinforcement groove 303 .

[0032] The detailed working process of this embodiment is as follows: under the arrangement of the reinforcement strip 401 and the groove 303 to be reinforced, displacement of the clamping arm 4 due to external force during the detection process can be avoided, thereby preventing the detection accuracy from being affected.

[0033] like Figure 2As shown, multiple groups of positioning holes 201 are evenly distributed on the bottom plate 2.

[0034] The detailed working process of this embodiment is as follows: the function of the positioning hole 201 is to install the bottom plate 2 to a suitable position.

[0035] The implementation principle of the embodiment of the present application is: first, the anchor rod is passed through the through hole 101 between the upper pad 1 and the lower pad 2, so that the upper pad 1 contacts and abuts the building surface to form a stable base, and then the jack is installed on the upper pad 1, and the dial indicator is installed on the clamping arm 4 and then adjusted. After adjusting to the appropriate position, it is fixed, and finally the load-distributed anchor rod is tested by the parallel jack synchronous tensioning method.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An anchor bolt detection device that isolates the contact between the loading device and the reaction surface, characterized in that: include: An upper pad (1) and a lower pad (2), wherein a plurality of groups of columns (202) are evenly distributed between the upper pad (1) and the lower pad (2), and both ends of each column (202) are fixedly connected to the upper pad (1) and the lower pad (2), respectively; a through hole (101) is formed on the upper pad (1) and the lower pad (2), and the axes of the two through holes (101) overlap; The clamping members, at least one group, are slidably arranged on the corresponding upright posts (202) via second bolts (305) and are used for clamping the measuring instrument.

2. The anchor bolt detection device with isolated loading equipment and reaction surface contact according to claim 1, characterized in that: Each of the clamping members comprises an adjusting arm (3) sleeved on the corresponding column (202) and a clamping arm (4) slidably connected to the adjusting arm (3); the second bolt (305) is threadedly connected to the adjusting arm (3) and abuts against the column (202).

3. The anchor bolt detection device with isolated loading equipment and reaction surface contact according to claim 2, characterized in that: A limit block (301) is provided on the surface of each regulating arm (3) in contact with the column (202), a travel groove (203) is provided on the corresponding column (202), and the limit block (301) is located in the corresponding travel groove (203).

4. The anchor bolt detection device with isolated loading equipment and reaction surface contact according to claim 2, characterized in that: Each of the adjusting arms (3) is provided with a receiving groove (302), and one end of the corresponding clamping arm (4) is slidably arranged in the receiving groove (302), wherein a first bolt (304) is threadedly connected to the adjusting arm (3), and the first bolt (304) abuts against the clamping arm (4).

5. The anchor bolt detection device with isolated loading equipment and reaction surface contact according to claim 4, characterized in that: A limiting plate (402) is provided at one end of the clamping arm (4) located in the receiving groove (302).

6. The anchor bolt detection device with isolated loading equipment and reaction surface contact according to claim 4, characterized in that: A reinforcement groove (303) is provided on the side wall of each receiving groove (302), and a reinforcement strip (401) is provided on each clamping arm (4), wherein the reinforcement strip (401) is located in the corresponding reinforcement groove (303).

7. The anchor bolt detection device with isolated loading equipment and reaction surface contact according to claim 1, characterized in that: The lower pad (2) is evenly distributed with multiple groups of positioning holes (201).

Images