Miniature anchor rod drawing instrument

Abstract

The utility model discloses a miniature anchor rod drawing instrument which comprises a supporting plate, a side plate is fixed to one side of the top end of the supporting plate, an oil storage barrel is installed on one side of the top end of the supporting plate, a digital display pressure gauge is installed on the other side of the top end of the supporting plate, bunching clamps are fixed to the two ends of the top of the supporting plate, and rubber sheets are fixed to the inner sides of the bunching clamps. A hydraulic cylinder is arranged on one side of the supporting plate, and an oil inlet is fixed to the bottom end of one side of the hydraulic cylinder. By arranging the bunching clamp, after detection is finished, the connector and the oil inlet are detached, then the high-pressure oil pipes are sequentially wound on the outer side of the drawing instrument and clamped into the bunching clamp, and the rubber sheet on the inner side of the bunching clamp plays a limiting role, so that the fastening performance during storage can be guaranteed; and the high-pressure oil pipes are sequentially taken out from the interior of the bunching clamp, and then the interface is inserted into the oil inlet, so that the convenience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pull testers, in particular to a micro bolt pull tester. Background Technique

[0002] Bolts are the most basic components of roadway support in coal mines. They can reinforce the surrounding rock of the roadway together, enabling the surrounding rock to support itself. Bolts can also be used for main reinforcement of slopes, tunnels, and dams. Bolts can penetrate deep into the strata. The whole bolt is divided into a free section and an anchorage section. After the bolt is reinforced, a pull tester is needed to detect the fixing force of the bolt. The pull tester is used for on-site detection of the anchoring force of various bolts, steel bars, etc., and is an essential on-site detection instrument for each quality inspection unit.

[0003] In the actual use process, bolts are generally reinforced at slopes and dams, and the high-pressure oil pipe needs to have a certain length. Then, the hydraulic cylinder is sleeved on the bolt for pulling. After the detection is completed, the hydraulic cylinder needs to be taken out, and then the high-pressure oil pipe is stored. Generally, the high-pressure oil pipe is directly wound around the outside of the pull tester, and this method is prone to loosening. Therefore, a micro bolt pull tester is proposed to solve the problems pointed out in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a micro bolt pull tester to solve the problems pointed out in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A micro bolt pull tester, including a support plate, one side of the top of the support plate is fixed with a side plate, one side of the top of the support plate is provided with an oil storage cylinder, the other side of the top of the support plate is provided with a digital display pressure gauge, both ends of the top of the support plate are fixed with wire bundling clips, a rubber sheet is fixed inside the wire bundling clips, one side of one end of the oil storage cylinder is provided with an installation port, a high-pressure oil pipe is installed on one side of the installation port, one end of the high-pressure oil pipe is provided with an interface, one side of the top of the oil storage cylinder is hinged with a pressure rod, a connecting handle is fixed on one side of the pressure rod, one side of the rear end of the oil storage cylinder is fixed with a relief valve, a valve rod is installed inside the relief valve, a valve handle is fixed at the rear end of the valve rod, a display screen is installed on the top of the digital display pressure gauge, a hydraulic cylinder is arranged on one side of the support plate, and an oil inlet is fixed at the bottom end of one side of the hydraulic cylinder.

[0006] Preferably, multiple groups of wire bundling clips are provided, and multiple groups of wire bundling clips are symmetrically distributed about the center line of the support plate.

[0007] Preferably, an oil filling hole is fixed at the top of one end of the oil storage cylinder, a threaded column is arranged inside the oil filling hole, a screw cap is fixed at the front end of the threaded column, and a sealing ring is fixed at the front end of the oil filling hole.

[0008] Preferably, the inner diameter of the oil injection hole is smaller than the outer diameter of the threaded post, and the oil injection hole and the threaded post are threadedly connected.

[0009] Preferably, the cross-section of the sealing ring is the same as that of the oil injection hole, and the oil injection hole communicates with the oil storage cylinder.

[0010] Preferably, support grooves are fixed on both sides of the bottom end of the support plate, support blocks are fixed inside the support grooves, support bars are fixed at the bottom ends of the support blocks, and rubber pads are fixed at the bottom ends of the support bars.

[0011] Preferably, there are two groups of the support bars, and the two groups of support bars are symmetrically distributed about the center line of the support plate.

[0012] Preferably, the interface and the oil inlet are matched with each other, and the interface communicates with the high-pressure oil pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] By providing a wire bundling clip, after the detection is completed, the interface and the oil inlet are disassembled, and then the high-pressure oil pipe is wound around the outside of the pull tester in sequence. Then, the high-pressure oil pipe is clamped into the wire bundling clip. The rubber sheet inside the wire bundling clip plays a role in limiting, so as to ensure the tightness during storage. When in use, the high-pressure oil pipe is taken out from the wire bundling clip in sequence, and then the interface is inserted into the oil inlet, improving its convenience.

[0015] By providing an oil injection hole, during oil injection, the screw cap is rotated, and the screw cap drives the threaded post to rotate. The threaded post is rotated out of the oil injection hole until it falls off. Oil is injected into the oil injection hole, and then the threaded post is docked with the oil injection hole. The screw cap is rotated, and the screw cap drives the threaded post to be installed into the oil injection hole. At this time, the screw cap will squeeze the sealing ring, and the sealing ring can improve the sealing performance between the oil injection hole and the screw cap.

[0016] By providing support bars, support grooves are fixed on both sides of the bottom end of the support plate, support blocks are fixed inside the support grooves, support bars are fixed at the bottom ends of the support blocks, and the support bars play a supporting role to support the bottom of the support plate. At the same time, rubber pads are fixed at the bottom of the support bars, and the rubber pads can increase the friction at the bottom of the support bars, thereby improving the stability of the support plate during support. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is the front view structural schematic diagram of the present utility model;

[0019] Figure 2 is the top view structural schematic diagram of the present utility model;

[0020] Figure 3 of the present utility model Figure 2 is the enlarged structural schematic diagram at position A in;

[0021] Figure 4 is the three-dimensional structural schematic diagram of the support bar of the present utility model.

[0022] Explanation of the reference numerals in the figure:

[0023] 1, support plate; 2, oil storage cylinder; 3, screw cap; 4, installation port; 5, high-pressure oil pipe; 6, wire harness clamp; 7, interface; 8, oil inlet; 9, hydraulic cylinder; 10, pressure rod; 11, connecting handle; 12, side plate; 13, support groove; 14, support bar; 15, digital display pressure gauge; 16, valve handle; 17, rubber sheet; 18, display screen; 19, threaded column; 20, oil injection hole; 21, sealing ring; 22, support block; 23, rubber pad; 24, unloading valve; 25, valve rod. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1-4, An embodiment provided by the present utility model: A micro anchor pulling instrument, which includes a support plate 1. On one side of the top of the support plate 1, a side plate 12 is fixed. On one side of the top of the support plate 1, an oil storage cylinder 2 is installed. On the other side of the top of the support plate 1, a digital display pressure gauge 15 is installed. At both ends of the top of the support plate 1, wire bundling clips 6 are fixed. Inside the wire bundling clips 6, rubber sheets 17 are fixed. On one side of one end of the oil storage cylinder 2, an installation port 4 is installed. On one side of the installation port 4, a high-pressure oil pipe 5 is installed. At one end of the high-pressure oil pipe 5, an interface 7 is installed. On one side of the top of the oil storage cylinder 2, a pressure rod 10 is hinged. On one side of the pressure rod 10, a connecting handle 11 is fixed. On one side of the rear end of the oil storage cylinder 2, a relief valve 24 is fixed. Inside the relief valve 24, a valve rod 25 is installed. At the rear end of the valve rod 25, a valve handle 16 is fixed. On the top of the digital display pressure gauge 15, a display screen 18 is installed. On one side of the support plate 1, a hydraulic cylinder 9 is provided. At the bottom end of one side of the hydraulic cylinder 9, an oil inlet 8 is fixed. Multiple groups of wire bundling clips 6 are provided, and the multiple groups of wire bundling clips 6 are symmetrically distributed about the center line of the support plate 1;

[0026] Specifically, as Figure 1 and Figure 2 shown, after the detection is completed, disconnect the interface 7 from the oil inlet 8, then wind the high-pressure oil pipe 5 around the outside of the pulling instrument in sequence, and then snap the high-pressure oil pipe 5 into the inside of the wire bundling clip 6. The rubber sheet 17 inside the wire bundling clip 6 plays a role in limiting the position, so as to ensure the tightness during storage. When in use, take out the high-pressure oil pipe 5 from the inside of the wire bundling clip 6 in sequence, and then insert the interface 7 into the inside of the oil inlet 8, which improves its convenience;

[0027] Embodiment Two: At the top of one end of the oil storage cylinder 2, an oil injection hole 20 is fixed. Inside the oil injection hole 20, a threaded column 19 is provided. At the front end of the threaded column 19, a screw cap 3 is fixed. At the front end of the oil injection hole 20, a sealing ring 21 is fixed. The inner diameter of the oil injection hole 20 is smaller than the outer diameter of the threaded column 19. The oil injection hole 20 and the threaded column 19 are in threaded connection. The cross-section of the sealing ring 21 is the same as the cross-section of the oil injection hole 20. The oil injection hole 20 is communicated with the oil storage cylinder 2;

[0028] Specifically, as Figure 1 , Figure 2 and Figure 3 shown, when injecting oil, rotate the screw cap 3. The screw cap 3 drives the threaded column 19 to rotate, and rotate the threaded column 19 out of the inside of the oil injection hole 20. Inject oil into the oil injection hole 20, and then dock the threaded column 19 with the oil injection hole 20. Rotate the screw cap 3. The screw cap 3 drives the threaded column 19 to be installed into the inside of the oil injection hole 20. At this time, the screw cap 3 will squeeze the sealing ring 21, and the sealing ring 21 can improve the sealing performance between the oil injection hole 20 and the screw cap 3;

[0029] Embodiment 3: Support grooves 13 are fixed to both sides of the bottom end of the support plate 1. A support block 22 is fixed inside the support groove 13. A support bar 14 is fixed to the bottom end of the support block 22. A rubber pad 23 is fixed to the bottom end of the support bar 14. There are two groups of support bars 14, and the two groups of support bars 14 are symmetrically distributed about the center line of the support plate 1.

[0030] Specifically, as Figure 1 and Figure 4 shown, support grooves 13 are fixed to both sides of the bottom end of the support plate 1, a support block 22 is fixed inside the support groove 13, a support bar 14 is fixed to the bottom end of the support block 22, and the support bar 14 plays a supporting role and can support the bottom of the support plate 1. At the same time, a rubber pad 23 is fixed to the bottom of the support bar 14, and the rubber pad 23 can increase the friction at the bottom of the support bar 14, thereby improving the stability of the support plate 1 during support.

[0031] Working principle: When the present utility model is in use, the hydraulic cylinder 9 is fixed to the anchor rod through the anchor ring. Press the pressure rod 10, and the hydraulic cylinder 9 will slowly pull out the anchor rod, and the fixing force of the anchor rod can be detected. The detected data is displayed through the display screen 18. Then, the hydraulic cylinder 9 is taken out from the outside of the anchor rod, the interface 7 is removed from the oil inlet 8, the high-pressure oil pipe 5 is wound around the outside of the pull tester in sequence, and then the high-pressure oil pipe 5 is clamped into the inside of the wire bundling clip 6. The rubber sheet 17 inside the wire bundling clip 6 plays a limiting role. When injecting oil, rotate the screw cap 3, the screw cap 3 drives the threaded column 19 to rotate, and the threaded column 19 is rotated out of the oil injection hole 20. Inject oil into the oil injection hole 20, and then dock the threaded column 19 with the oil injection hole 20. Rotate the screw cap 3, and the screw cap 3 drives the threaded column 19 to be installed into the inside of the oil injection hole 20 to complete the use of the pull tester.

[0032] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A micro anchor puller, comprising a support plate (1), characterized in that: A side plate (12) is fixed to one side of the top of the support plate (1), an oil storage cylinder (2) is installed on one side of the top of the support plate (1), a digital pressure gauge (15) is installed on the other side of the top of the support plate (1), a cable clamp (6) is fixed to both ends of the top of the support plate (1), a rubber sheet (17) is fixed to the inner side of the cable clamp (6), a mounting port (4) is installed on one side of one end of the oil storage cylinder (2), a high-pressure oil pipe (5) is installed on one side of the mounting port (4), and a connector (7) is installed on one end of the high-pressure oil pipe (5). A pressure rod (10) is hingedly connected to one side of the top end of the oil storage cylinder (2), a connecting handle (11) is fixed to one side of the pressure rod (10), a relief valve (24) is fixed to one side of the rear end of the oil storage cylinder (2), a valve stem (25) is installed inside the relief valve (24), a valve handle (16) is fixed to the rear end of the valve stem (25), a display screen (18) is installed at the top end of the digital pressure gauge (15), a hydraulic cylinder (9) is arranged on one side of the support plate (1), and an oil inlet (8) is fixed to the bottom end of one side of the hydraulic cylinder (9).

2. A micro anchor puller according to claim 1, characterized in that: A plurality of groups of the cable clamps (6) are provided, and the plurality of groups of the cable clamps (6) are symmetrically distributed about the center line of the support plate (1).

3. A micro anchor puller according to claim 1, characterized in that: An oil filling hole (20) is fixed at the top of one end of the oil storage cylinder (2), a threaded column (19) is arranged inside the oil filling hole (20), a screw cover (3) is fixed at the front end of the threaded column (19), and a sealing ring (21) is fixed at the front end of the oil filling hole (20).

4. A micro anchor puller according to claim 3, characterized in that: The inner diameter of the oil injection hole (20) is smaller than the outer diameter of the threaded column (19), and the oil injection hole (20) and the threaded column (19) are threadedly connected.

5. The micro anchor puller according to claim 3, characterized in that: The cross section of the sealing ring (21) is the same as the cross section of the oil filling hole (20), and the oil filling hole (20) is communicated with the oil storage cylinder (2).

6. The micro anchor puller according to claim 1, characterized in that: Support grooves (13) are fixed on both sides of the bottom end of the support plate (1), a support block (22) is fixed inside the support groove (13), a support bar (14) is fixed at the bottom end of the support block (22), and a rubber pad (23) is fixed at the bottom end of the support bar (14).

7. A micro anchor puller according to claim 6, characterized in that: Two groups of the support bars (14) are provided, and the two groups of the support bars (14) are symmetrically distributed about the center line of the support plate (1).

8. The micro anchor puller according to claim 1, characterized in that: The interface (7) and the oil inlet (8) are matched with each other, and the interface (7) is connected to the high-pressure oil pipe (5).

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