Anchor withdrawing device for anchorage device of anchor rod drawing instrument

Abstract

The utility model discloses an anchor rod drawing instrument anchorage device anchor withdrawing device which comprises a sleeve, the bottom of the sleeve is a knocking face, the interior of the sleeve is hollow, a collecting part is formed, in the knocking process, clamping pieces of an anchorage device can be received through the collecting part, the clamping pieces are prevented from being lost, the effect of collecting the clamping pieces is achieved, and a limiting ring groove is formed in an opening in the top of the collecting part. The limiting ring groove is in contact with the anchorage device, and in the using process, the area of the limiting ring groove is buckled on the anchorage device, so that slippage generated during knocking is prevented; one end of the holding rod is connected with the sleeve; the rubber sleeve is arranged at the other end of the holding rod in a sleeving manner; by means of the design, the anchor withdrawing device is placed on the anchor ring of the anchorage device, the anchor withdrawing device replaces knocking on the anchorage device, clamping pieces of the anchorage device are protected, meanwhile, the anchor ring and the clamping pieces are made to fall off more easily and not prone to sliding, meanwhile, the service life of the anchorage device can be prolonged, the risk of personnel injury can be reduced, operation time is saved, and the safety of the anchorage device is improved. Test detection work can be completed safely, efficiently and rapidly.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchor rods, and particularly relates to an anchor retractor for an anchor rod pull tester. Background Art

[0002] In order to ensure the construction safety during the tunnel construction, a tensile force test and detection service is carried out on the anchor rods in the initial support during the tunnel construction process. The detection is mainly realized through an anchor rod pull tester. After the pull test is normally completed, the anchor needs to be withdrawn. At present, the anchor ring is mainly knocked to make it fall off.

[0003] However, in the actual operation process, it is difficult for the wedge to fall off the anchor ring, and the anchor ring is easily damaged during the knocking process; at the same time, the wedge is often knocked, resulting in different degrees of damage to the wedge; after the outer side of the anchor ring appears with an inclined opening or different degrees of damage with the increase of the knocking times, it is easy to slip during the subsequent knocking, and there is a risk of injury to the operator. During the test of the crown and the waist of the tunnel, the anchor ring of the anchor itself also has a downward acting force, which increases the operation difficulty and the risk. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an anchor retractor for an anchor rod pull tester to solve the problems that the wedge is difficult to fall off the anchor ring and the anchor ring is easily damaged during the knocking process as mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: An anchor retractor for an anchor rod pull tester includes a sleeve, the bottom of which is a knocking surface, the inside is hollow and forms a collection part. During the knocking, the collection part can catch the wedges of the anchor retractor to prevent them from being lost, playing a role in collecting the wedges. And a limiting ring groove is formed at the top opening of the collection part, and the limiting ring groove contacts with the anchor. During use, the area of the limiting ring groove is buckled on the anchor to prevent slipping during knocking; a grip rod, one end of which is connected to the sleeve; and a rubber sleeve, which is sleeved on the other end of the grip rod to reduce the vibration force during knocking, achieving the function of reducing the uncomfortable feeling of the staff's grip.

[0006] As a preferred technical solution in the utility model, a threaded hole is opened on the side of the sleeve, and a threaded part adapted to the threaded hole is opened on the outer wall of one end of the grip rod. The threaded part is threadedly connected to the threaded hole, thereby realizing the fixation and disassembly of the sleeve and the grip rod. During the later storage, the occupied space of the whole device can be reduced.

[0007] As a preferred technical solution in the present utility model, an inner ring groove is formed on the end face of one end of the grip rod, and a columnar body is formed in the middle area of the inner ring groove. The outer wall of the columnar body is turned with threads and forms an inner stud; a screw sleeve is fixed to the other end of the grip rod, and the screw sleeve is screwed into the inner ring groove and is threadedly connected to the outer wall of the inner stud. During processing, multiple grip rods can be assembled according to actual needs to achieve the purpose of adjusting the length of the grip rod.

[0008] As a preferred technical solution in the present utility model, the length of the screw sleeve is equal to the depth of the inner ring groove, so as to ensure that the two can be stably connected.

[0009] As a preferred technical solution in the present utility model, the outer wall of the screw sleeve and the inner wall of the threaded portion are both smooth curved surfaces, and the two are seamlessly fitted.

[0010] As a preferred technical solution in the present utility model, the sleeve and the grip rod are perpendicular to each other, and the end of the screw sleeve abuts against the inner end face of the rubber sleeve to avoid the phenomenon that the rubber sleeve is not properly sleeved.

[0011] As a preferred technical solution in the present utility model, the closed end of the rubber sleeve is hemispherical, and the design without sharp corners provides higher comfort during use.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] Through the design of the present utility model, when the de-anchoring device is placed on the anchor ring of the anchor, the de-anchoring device is used instead of knocking on the anchor, which protects the anchor clip while making it easier for the anchor ring and the clip to fall off, not prone to slippage. At the same time, it can also extend the service life of the anchor itself, reduce the risk of personnel injury, and save operation time, completing the test detection safely, efficiently and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present utility model;

[0015] Figure 2 is a structural schematic diagram of the sleeve of the present utility model;

[0016] Figure 3 is a top view of the grip rod of the present utility model;

[0017] Figure 4 is a rear view of the grip rod of the present utility model.

[0018] In the figure:

[0019] 100, sleeve; 100a, limit ring groove; 100b, screw hole; 100c, collection part;

[0020] 200, Gripping rod; 200a, Threaded part; 200b, Inner ring groove; 201, Inner stud; 202, Sleeve

[0021] 300, Rubber sleeve. Detailed implementation mode

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 to 4 , the present invention provides a technical solution: an anchor pulling instrument anchor retractor, including

[0024] A sleeve 100 with a total height of 85 mm, the bottom of which is a percussion surface with a diameter of 92 mm. The inside is hollow and forms a collection part 100c with a diameter of 62 mm. The thickness between the bottom end surface of the collection part 100c and the percussion surface is 20 mm. During percussion, the thickened clamping pieces can be caught by the collection part 100c to prevent them from being lost, playing a role in collecting the clamping pieces. And a limiting ring groove 100a is formed at the top opening of the collection part 100c. The limiting ring groove 100a contacts the anchor, and the stress surface is 10 mm. The thickness between the inner wall of the limiting ring groove 100a and the sleeve 100 is 5 mm. During use, the area of the limiting ring groove 100a is buckled on the anchor to prevent slippage during percussion;

[0025] A gripping rod 200 with a single length of 300 mm and a diameter of 20 mm. One end of the gripping rod 200 is connected to the sleeve 100;

[0026] A rubber sleeve 300 is sleeved on the other end of the gripping rod 200 to reduce the vibration force during percussion, achieving the function of reducing the discomfort of the staff's grip.

[0027] In this embodiment, preferably, a screw hole 100b is opened on the side of the sleeve 100 with a depth of 6 mm. A threaded part 200a adapted to the screw hole 100b is opened on the outer wall of one end of the gripping rod 200. The threaded part 200a is threadedly connected to the screw hole 100b, thereby realizing the fixation and disassembly of the sleeve 100 and the gripping rod 200. During later storage, the occupied space of the entire device can be reduced.

[0028] In this embodiment, preferably, an inner ring groove 200b is formed at one end face of the grip rod 200. A cylindrical body is formed in the middle area of the inner ring groove 200b. The outer wall of the cylindrical body is turned with threads and constitutes an internal stud 201. A nut sleeve 202 is fixed to the other end of the grip rod 200. The nut sleeve 202 is screwed into the inner ring groove 200b and is threadedly connected to the outer wall of the internal stud 201. During processing, multiple grip rods 200 can be assembled according to actual requirements to achieve the purpose of adjusting the length of the grip rod 200.

[0029] In this embodiment, preferably, the length of the nut sleeve 202 is equal to the depth of the inner ring groove 200b to ensure stable connection between the two.

[0030] In this embodiment, preferably, the outer wall of the nut sleeve 202 and the inner wall of the threaded portion 200a are both smooth curved surfaces and are seamlessly fitted.

[0031] In this embodiment, preferably, the sleeve 100 and the grip rod 200 are perpendicular to each other. The end of the nut sleeve 202 abuts against the inner end face of the rubber sleeve 300 to avoid the phenomenon that the rubber sleeve 300 is not properly sleeved.

[0032] In this embodiment, preferably, the closed end of the rubber sleeve 300 is hemispherical, and the design without sharp corners provides higher comfort during use.

[0033] Although the embodiments of the present invention have been shown and described (see the above detailed description), those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Anchor pull tester and anchor retractor, characterized in that, including a sleeve (100) with a bottom as a striking surface, being hollow inside and formed with a collecting portion (100c), and a limiting annular groove (100a) is formed at the top opening of the collecting portion (100c), and the limiting annular groove (100a) contacts with the anchor; a grip rod (200) with one end connected to the sleeve (100); a rubber sleeve (300) sleeved on the other end of the grip rod (200).

2. The anchor retractor of the bolt puller according to claim 1, characterized in that, A screw hole (100b) is formed on the side of the sleeve (100), and a threaded portion (200a) adapted to the screw hole (100b) is formed on the outer wall of one end of the grip rod (200), and the threaded portion (200a) is threadedly connected to the screw hole (100b).

3. The anchor retractor of the bolt puller according to claim 2, characterized in that, An inner annular groove (200b) is formed on the end face of one end of the grip rod (200), and a columnar body is formed in the middle area of the inner annular groove (200b), and the outer wall of the columnar body is turned with threads and constitutes an inner stud (201); A screw sleeve (202) is fixed to the other end of the grip rod (200), and the screw sleeve (202) is screwed into the inner annular groove (200b) and is threadedly connected to the outer wall of the inner stud (201).

4. The anchor retractor of the anchor bolt puller according to claim 3, characterized in that, The length of the screw sleeve (202) is equal to the depth of the inner annular groove (200b).

5. The anchor retractor of the anchor bolt puller according to claim 4, characterized in that, The outer wall of the screw sleeve (202) and the inner wall of the threaded portion (200a) are both smooth curved surfaces and are seamlessly fitted to each other.

6. The anchor retractor of the anchor rod pulling instrument according to claim 3, characterized in that, The sleeve (100) and the grip rod (200) are perpendicular to each other, and the end of the screw sleeve (202) abuts against the inner end face of the rubber sleeve (300).

7. The anchor retractor of the anchor bolt puller according to claim 6, characterized in that, The closed end of the rubber sleeve (300) is hemispherical.

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