Auxiliary device for anchor rod pull-out test

Abstract

The utility model provides an auxiliary device for anchor rod pull-out test, and relates to the technical field of anchor rod pull-out test, the auxiliary device comprises a manual pump, a hydraulic cylinder and a high pressure oil pipe, the bottom end of the hydraulic cylinder is fixedly connected with a connecting block, the bottom of the connecting block is provided with a protection seat through a fast assembly mechanism, the protection seat is internally provided with a through hole, and the through hole is communicated with the hydraulic cylinder. An oil conveying mechanism is arranged at the top of one end of the manual pump; the opening in one side of the clamping sleeve is aligned with the connecting block at the bottom end of the hydraulic cylinder, the protection base is pushed to move towards the connecting block, the protection base is clamped to the bottom end of the hydraulic cylinder, then the tensioning block in the vertical state penetrates through the strip-shaped groove to be inserted into the clamping groove, then the tensioning block is rotated by 90 degrees, and the upper fixing sleeve is tightened towards one end of the fastening bolt; the fixing sleeve is matched with the tensioning block to clamp the clamping sleeve and the connecting block, so that the protection base is fixed to the bottom of the hydraulic cylinder, loss caused by direct contact between the bottom end of the hydraulic cylinder and the concrete ground is avoided, and the hydraulic cylinder is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt pull - out tests, in particular to an auxiliary device for bolt pull - out tests. Background Technique

[0002] The bolt pull - out tester is mainly used to detect the anchoring force of various anchor bolts, steel bars and other anchor solids. The bolt pull - out tester consists of a manual pump, a hydraulic cylinder, an intelligent digital display pressure gauge, a high - pressure oil pipe with a quick - coupling, an anchor and a portable carrying case. Its hydraulic cylinder is a hollow self - reset type;

[0003] In the existing construction projects, generally, anchor bolts are driven into the concrete surface, and then the anchor bolts are used to connect with the prefabricated wall. Before that, the bolt pull - out tester needs to be used to test the anchor bolts to ensure the safety of the building. The existing concrete surface has a high hardness. During the test process, the bottom of the device applies force and frictions with it, resulting in wear on the bottom surface of the device. After being used many times, the bottom surface of the device becomes uneven, which affects the accuracy of the device for testing the anchor bolts. Therefore, the utility model proposes an auxiliary device for bolt pull - out tests to solve the above problems. Content of the Utility Model

[0004] In view of the above problems, the utility model proposes an auxiliary device for bolt pull - out tests to solve the problem that the bottom surface of the test device has more wear and tear and becomes uneven after multiple tests of the anchor bolts in the prior art, which affects the accuracy of the device for testing the anchor bolts.

[0005] To achieve the purpose of the utility model, the utility model is realized through the following technical solutions: An auxiliary device for bolt pull - out tests, including a manual pump, a hydraulic cylinder and a high - pressure oil pipe. One end of the manual pump is connected with an oil outlet pipe, the oil outlet pipe is connected with the hydraulic cylinder through the high - pressure oil pipe. The bottom end of the hydraulic cylinder is fixedly connected with a connecting block, the bottom of the connecting block is installed with a protection seat through a quick - installation mechanism. There is a through - hole inside the protection seat, and an oil - delivery mechanism is arranged at the top of one end of the manual pump.

[0006] Further improvement lies in that: The quick - installation mechanism includes a ferrule, a clamping groove, a fastening bolt, a tensioning block and a fixing sleeve. The ferrule is arranged on the top of the protection seat. There are multiple strip - shaped grooves inside the ferrule. There is a clamping groove inside the connecting block. The fastening bolt is arranged inside the strip - shaped groove. One end of the fastening bolt is fixedly connected with the tensioning block, and the other end of the fastening bolt is threadedly connected with the fixing sleeve.

[0007] Further improvement lies in that: The shape of the tensioning block is the same as that of the strip - shaped groove, and their lengths and widths are equal. The positions of the strip - shaped groove and the clamping groove are parallel before and after. The diameter of the fixing sleeve is larger than the width of the tensioning block.

[0008] A further improvement lies in that: the oil delivery mechanism includes a rotating seat, a handle, a rotating shaft, a rotating rod, a hinged rod and a piston rod. The top of one end of the manual pump is hinged with a rotating seat. One side of the rotating seat is fixedly connected with a handle. The inside of the handle is hinged with a rotating rod through a rotating shaft. The top of one end of the manual pump is slidably connected with a piston rod. The top of the hinged rod is provided with a rotating rod.

[0009] A further improvement lies in that: circular holes are symmetrically arranged at the top and bottom ends of the hinged rod. A pin shaft is fixed inside the circular holes. The top end of the hinged rod is hinged with the bottom end of the rotating rod through the pin shaft. The bottom end of the hinged rod is hinged with the top end of the piston rod through the pin shaft.

[0010] A further improvement lies in that: one end of the manual pump is further provided with a pressure relief valve. One end of the pressure relief valve is rotatably connected with a knob. One end of the knob is connected with the valve core inside the pressure relief valve.

[0011] A further improvement lies in that: a clamping cylinder is provided at the top end of the hydraulic cylinder. The cross sections of the clamping cylinder and the hydraulic cylinder are both wedge-shaped and have a structure that is narrow at the top and wide at the bottom.

[0012] The beneficial effects of the present utility model are as follows: Align the opening on one side of the ferrule with the connecting block at the bottom end of the hydraulic cylinder, push the protection seat towards the connecting block, and snap the protection seat onto the bottom end of the hydraulic cylinder. Then, insert the tensioning block in the vertical state through the strip-shaped groove into the inside of the clamping groove. After that, rotate it 90° and then tighten the fixing sleeve towards one end of the fastening bolt. The fixing sleeve and the tensioning block cooperate to clamp the ferrule and the connecting block, so as to fix the protection seat at the bottom of the hydraulic cylinder, avoiding direct contact between the bottom end of the hydraulic cylinder and the concrete floor to cause wear, and solving the problem in the prior art that the bottom surface of the testing device shows more wear and unevenness after multiple tests of the anchor bolt, which affects the accuracy of the device for testing the anchor bolt. Description of the Drawings

[0013] Figure 1 is the front view of the present utility model;

[0014] Figure 2 is the side view of the present utility model;

[0015] Figure 3 is the protection seat of the present utility model;

[0016] Figure 4 is the schematic structural view of the fastening bolt of the present utility model;

[0017] Figure 5 is the present utility model Figure 2 Partial enlarged view of part A.

[0018] Wherein: 1. Manual pump; 2. Hydraulic cylinder; 3. High-pressure oil pipe; 4. Connecting block; 5. Protection seat; 6. Ferrule; 7. Card slot; 8. Fastening bolt; 9. Tensioning block; 10. Fixed sleeve; 11. Strip-shaped groove; 12. Rotating seat; 13. Handle; 14. Rotating shaft; 15. Rotating rod; 16. Hinge rod; 17. Piston rod; 18. Oil outlet pipe; 19. Pressure relief valve; 20. Clamping cylinder. Specific implementation manner

[0019] In order to deepen the understanding of the present utility model, the following will further elaborate on the present utility model in combination with embodiments. These embodiments are only used to explain the present utility model and do not constitute a limitation to the protection scope of the present utility model.

[0020] According to Figures 1-5 As shown, this embodiment proposes an auxiliary device for bolt pull-out test, including a manual pump 1, a hydraulic cylinder 2 and a high-pressure oil pipe 3. One end of the manual pump 1 is connected to an oil outlet pipe 18, and the oil outlet pipe 18 is connected to the hydraulic cylinder 2 through the high-pressure oil pipe 3. The bottom end of the hydraulic cylinder 2 is fixedly connected to a connecting block 4, and the bottom of the connecting block 4 is installed with a protection seat 5 through a quick-installation mechanism. There is a through hole inside the protection seat 5. There is an oil delivery mechanism at the top of one end of the manual pump 1. The protection seat 5 is installed at the bottom of the hydraulic cylinder 2 through the quick-installation mechanism. When the hydraulic cylinder 2 is sleeved on the bolt, it is the protection seat 5 that directly contacts the concrete ground, rather than the bottom end of the hydraulic cylinder 2. After the oil delivery mechanism delivers the hydraulic oil inside the manual pump 1 into the inside of the hydraulic cylinder 2, the hydraulic cylinder 2 will push the bolt upward for testing. At this time, the protection seat 5 rubs against the concrete ground. After its wear reaches the bottom and becomes unbalanced, a new protection seat 5 can be replaced through the quick-installation mechanism to avoid affecting the accuracy of the device for the bolt trumpet experiment.

[0021] The quick-installation mechanism includes a ferrule 6, a clamping groove 7, a fastening bolt 8, a tensioning block 9, and a fixing sleeve 10. The ferrule 6 is arranged on the top of the protection seat 5. Multiple strip-shaped grooves 11 are provided inside the ferrule 6. A clamping groove 7 is provided inside the connecting block 4. A fastening bolt 8 is provided inside the strip-shaped groove 11. One end of the fastening bolt 8 is fixedly connected to a tensioning block 9, and the other end of the fastening bolt 8 is threadedly connected to a fixing sleeve 10. The tensioning block 9 has the same shape as the strip-shaped groove 11, and the length and width are equal. The strip-shaped groove 11 and the clamping groove 7 are parallel to each other in the front and back positions. The diameter of the fixing sleeve 10 is larger than the width of the tensioning block 9. Align the opening on one side of the ferrule 6 with the connecting block 4 at the bottom end of the hydraulic cylinder 2, and push the protection seat 5 towards the connecting block 4 to snap the protection seat 5 onto the bottom end of the hydraulic cylinder 2. Then, insert the vertically placed tensioning block 9 through the strip-shaped groove 11 into the clamping groove 7. After that, rotate it 90° and then tighten the fixing sleeve 10 towards one end of the fastening bolt 8. The fixing sleeve 10 and the tensioning block 9 cooperate to clamp the ferrule 6 and the connecting block 4, so as to fix the protection seat 5 at the bottom of the hydraulic cylinder 2, avoiding direct contact between the bottom end of the hydraulic cylinder 2 and the concrete floor and causing wear. During disassembly, just unscrew the fixing sleeve 10, rotate the fastening bolt 8 to drive the tensioning block 9 to be in a vertical state, and pull it out from the inside of the clamping groove 7.

[0022] The oil delivery mechanism includes a rotating seat 12, a handle 13, a rotating shaft 14, a rotating rod 15, a hinged rod 16, and a piston rod 17. A rotating seat 12 is hinged to the top of one end of the manual pump 1. A handle 13 is fixedly connected to one side of the rotating seat 12. A rotating rod 15 is hinged inside the handle 13 through a rotating shaft 14. A piston rod 17 is slidably connected to the top of one end of the manual pump 1. The rotating rod 15 is provided at the top of the hinged rod 16. Circular holes are symmetrically provided at the top and bottom ends of the hinged rod 16, and a pin shaft is fixed inside the circular holes. The top end of the hinged rod 16 is hinged to the bottom end of the rotating rod 15 through the pin shaft, and the bottom end of the hinged rod 16 is hinged to the top end of the piston rod 17 through the pin shaft. The handle 13 is connected to the rotating seat 12, so pressing the handle 13 can drive the rotating seat 12 to rotate. The rotating shaft 14 inside the handle 13 is hinged to the piston rod 17 through the rotating rod 15 and the hinged rod 16, and the top of one end of the manual pump 1 restricts the piston rod 17, and it can only move linearly. When the handle 13 is shaken, the piston rod 17 can be driven to move up and down reciprocally, so as to convey air into its interior through the air vent that the manual pump 1 itself has, and then form a pressure difference to automatically convey the hydraulic oil into the interior of the hydraulic cylinder 2.

[0023] A clamping barrel 20 is provided at the top of the hydraulic cylinder 2. The cross-sections of the clamping barrel 20 and the hydraulic cylinder 2 are both wedge-shaped, and are a structure that is narrow at the top and wide at the bottom. After the hydraulic oil is delivered into the interior of the hydraulic cylinder 2, the clamping barrel 20 is pushed to move upward. During the upward movement of the clamping barrel 20, the wedge-shaped mechanism of the clamping barrel 20 and the hydraulic cylinder 2 is used to clamp the anchor rod and drive the anchor rod to move upward, and the pull-out test is automatically performed.

[0024] One end of the manual pump 1 is also provided with a pressure relief valve 19, one end of the pressure relief valve 19 is rotatably connected to a knob, and one end of the knob is connected to the valve core inside the pressure relief valve 19. When the pulling test is completed, the valve core is driven by the knob to rotate inside the pressure relief valve 19, and the pressure relief valve 19 is connected to the outside world. The excess air is discharged from the inside of the manual pump 1, so that the hydraulic oil returns to the inside of the manual pump 1, and the clamping cylinder 20 is also automatically moved downward and reset by gravity, and is separated from the anchor rod and no longer clamped. At this time, the hydraulic cylinder 2 can be pulled out from the outside of the anchor rod.

[0025] The auxiliary device for anchor rod pulling test aligns the opening on one side of the sleeve 6 with the connecting block 4 at the bottom end of the hydraulic cylinder 2, pushes the protective seat 5 toward the connecting block 4, and engages the protective seat 5 at the bottom end of the hydraulic cylinder 2. Then, the tensioning block 9 in the vertical state is inserted into the inside of the slot 7 through the strip groove 11, and then rotated 90° and tightened the fixing sleeve 10 to one end of the fastening bolt 8. The fixing sleeve 10 cooperates with the tensioning block 9 to clamp the sleeve 6 and the connecting block 4 to fix the protective seat 5 to the bottom of the hydraulic cylinder 2 to avoid direct contact between the bottom end of the hydraulic cylinder 2 and the concrete floor to cause loss. When disassembling, you only need to unscrew the fixing sleeve 10, rotate the fastening bolt 8 to drive the tensioning block 9 to a vertical state, and pull it out from the inside of the slot 7.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for anchor rod pulling test, comprising a manual pump (1), a hydraulic cylinder (2) and a high-pressure oil pipe (3), characterized in that: One end of the manual pump (1) is connected to an oil outlet pipe (18), and the oil outlet pipe (18) is connected to a hydraulic cylinder (2) through a high-pressure oil pipe (3). The bottom end of the hydraulic cylinder (2) is fixedly connected to a connecting block (4), and a protective seat (5) is installed on the bottom of the connecting block (4) through a quick-install mechanism. A through hole is provided inside the protective seat (5), and an oil delivery mechanism is provided on the top of one end of the manual pump (1); The quick-install mechanism comprises a clamping sleeve (6), a clamping slot (7), a fastening bolt (8), a tensioning block (9) and a fixing sleeve (10); the clamping sleeve (6) is arranged on the top of the protective seat (5); a plurality of strip grooves (11) are provided inside the clamping sleeve (6); a clamping slot (7) is provided inside the connecting block (4); a fastening bolt (8) is provided inside the strip groove (11); one end of the fastening bolt (8) is fixedly connected to the tensioning block (9); the other end of the fastening bolt (8) is threadedly connected to the fixing sleeve (10).

2. The auxiliary device for anchor rod pull-out test according to claim 1, characterized in that: The tensioning block (9) and the strip groove (11) have the same shape, length and width. The strip groove (11) and the clamping groove (7) are parallel in front and back. The diameter of the fixing sleeve (10) is greater than the width of the tensioning block (9).

3. The auxiliary device for anchor rod pull-out test according to claim 1, characterized in that: The oil delivery mechanism comprises a rotating seat (12), a handle (13), a rotating shaft (14), a rotating rod (15), an articulated rod (16) and a piston rod (17); the top of one end of the manual pump (1) is hingedly connected to the rotating seat (12); one side of the rotating seat (12) is fixedly connected to the handle (13); the interior of the handle (13) is hingedly connected to the rotating rod (15) via the rotating shaft (14); the top of one end of the manual pump (1) is slidably connected to the piston rod (17); and the top of the articulated rod (16) is provided with the rotating rod (15).

4. The auxiliary device for anchor rod pull-out test according to claim 3, characterized in that: Circular holes are symmetrically provided at the top and bottom ends of the hinged rod (16), and a pin is fixed inside the circular hole. The top end of the hinged rod (16) is hinged to the bottom end of the rotating rod (15) through the pin, and the bottom end of the hinged rod (16) is hinged to the top end of the piston rod (17) through the pin.

5. The auxiliary device for anchor rod pull-out test according to claim 1, characterized in that: One end of the manual pump (1) is further provided with a pressure relief valve (19), one end of the pressure relief valve (19) is rotatably connected to a knob, and one end of the knob is connected to a valve core inside the pressure relief valve (19).

6. The auxiliary device for anchor rod pull-out test according to claim 1, characterized in that: A clamping barrel (20) is provided at the top end of the hydraulic cylinder (2). The cross-sections of the clamping barrel (20) and the hydraulic cylinder (2) are both wedge-shaped and have a structure that is narrow at the top and wide at the bottom.

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