Anchor rod drawing instrument

Abstract

The utility model relates to the technical field of anchor rod drawing devices, and discloses an anchor rod drawing instrument which comprises an anchorage device, an oil storage barrel and a hydraulic cylinder, the anchorage device comprises an anchor ring, a bottom plate, three inclined push blocks and three inclined clamping pieces, the bottom plate is fixedly connected to the bottom of the anchor ring, three grooves are formed in the inner wall of the anchor ring at equal angles, and the three inclined push blocks are clamped in the grooves respectively. A plurality of symmetrical locking grooves are formed in the two opposite inner walls of the two grooves in a clamped mode, the positions of the locking grooves are formed according to the diameters of different steel bar anchor rods, convex wings are constructed on the two sides of the rear portion of each inclined pushing block, the convex wings are connected with the locking grooves in a matched and clamped mode, and the three inclined clamping pieces are connected to gaps between the three inclined pushing blocks and the steel bar anchor rods in a clamped mode. The anchor ring of the anchorage device adopts an adjustable structure, so that the anchorage device can adapt to different inclined clamping pieces, the universality of the anchor ring is improved, the whole anchor rod drawing instrument does not need to carry more types of anchor rings when being used, the balance weight of equipment is reduced, the equipment is convenient to transport and carry, and the portability is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of anchor rod pulling devices, in particular to an anchor rod pulling instrument. Background Art

[0002] The anchor puller is an essential 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.

[0003] The existing anchor puller mainly consists of an oil storage cylinder, a pressure gauge, a hydraulic cylinder and an anchor. The anchor structure of the existing puller is generally composed of an anchor ring and three clips. In order to adapt to the anchoring of steel bars of different sizes, there are generally multiple models of anchor rings and clips. In this way, the equipment needs to carry multiple anchor rings when in use. In this way, when the equipment is actually used, the versatility of the anchor ring is not good, resulting in the need for personnel to carry more anchor rings, resulting in a large size of the equipment and heavy weight, which is inconvenient to carry and transport. In order to solve the above problems, an anchor puller is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an anchor rod pulling instrument in order to solve the above-mentioned problems.

[0005] The technical solution adopted by the utility model is as follows: the anchor rod pulling instrument comprises an anchor, an oil storage cylinder and a hydraulic cylinder, the hydraulic cylinder and the anchor are sleeved on the anchor rod, and the hydraulic cylinder is connected to the oil storage cylinder through a high-pressure oil pipe;

[0006] The anchor comprises an anchor ring, a bottom plate, three oblique push blocks and three oblique clips, the bottom plate is fixedly connected to the bottom of the anchor ring, three grooves are arranged at equal angles on the inner wall of the anchor ring, the three oblique push blocks are respectively clamped in the grooves, two inner walls opposite to each other of the two grooves are clamped with a plurality of symmetrical locking grooves, the positions of the locking grooves are opened according to the diameters of different steel anchor rods, convex wings are constructed on both sides of the rear part of the oblique push block, the convex wings are adapted to clamp with the locking grooves, the three oblique clips are clamped in the gaps between the three oblique push blocks and the steel anchor rods, and the sizes of the oblique clips are designed according to different steel anchor rods;

[0007] The bottom plate is provided with a circular hole;

[0008] The bottoms of the three oblique push blocks are all provided with threaded holes, and locking screws are threadedly connected to the threaded holes. Three through holes are provided on the outer wall of the anchor ring, and the three through holes are respectively connected to the three grooves, and the locking screws pass through the through holes.

[0009] In a preferred embodiment, the inner wall of the oblique clamp is provided with an arc-shaped groove adapted to the steel anchor rod, and the inner wall of the arc-shaped groove is provided with anti-slip grooves.

[0010] In a preferred embodiment, the oil storage cylinder is provided with a pressure rod, a pressure gauge, a load relief valve and an oil filling nozzle.

[0011] In a preferred embodiment, the axis of the hydraulic cylinder is a hollow structure.

[0012] In a preferred embodiment, a handle is fixedly connected to the outer wall of the hydraulic cylinder.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0014] In the utility model, the anchor ring 4 of the anchor 1 adopts an adjustable structure, so that it can adapt to the use of different oblique clips, thereby improving the versatility of the anchor ring 4. In this way, the entire anchor rod pulling instrument does not need to carry a large number of anchor rings 4 when in use, thereby reducing the weight of the equipment, facilitating the transportation and carrying of the equipment, and improving portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the top view of the structure of the anchor in the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the split structure of the anchor in the utility model.

[0018] Markings in the figure: 1-anchor, 2-oil storage cylinder, 3-hydraulic cylinder, 4-anchor ring, 5-base plate, 6-oblique push block, 7-oblique clamp, 8-groove, 9-locking groove, 10-convex wing, 11-round hole, 12-threaded hole, 13-locking bolt, 14-through hole, 16-arc groove, 17-anti-slip pattern, 18-pressure rod, 19-pressure gauge, 20-unloading valve, 21-oiling nozzle, 22-handle. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The following will be combined Figure 1-Figure 3 The anchor rod puller according to the embodiment of the utility model is described in detail.

[0021] Example:

[0022] The anchor rod pulling instrument provided by the embodiment of the utility model refers to Figures 1 to 3 As shown, it includes an anchor 1, an oil storage cylinder 2 and a hydraulic cylinder 3. The hydraulic cylinder 3 and the anchor 1 are sleeved on the anchor rod. The hydraulic cylinder 3 is connected to the oil storage cylinder 2 through a high-pressure oil pipe. This structure anchor 1 is connected to the steel anchor rod. The oil storage cylinder 2 is used to store hydraulic oil, and the hydraulic oil is pressed into the hydraulic cylinder 3, so as to control the hydraulic rod 3 to push the anchor 1 on the steel anchor rod, thereby detecting the compressive resistance of the steel anchor rod.

[0023] It should be noted that the specific structures of the hydraulic cylinder 2 and the hydraulic cylinder 3 published above have been made public, and the specific reference model is the JW-10-30T series anchor puller structure. This application does not improve the specific structures of the oil storage cylinder 2 and the hydraulic cylinder 3, so no further elaboration will be given here.

[0024] refer to Figures 1 to 3 As shown, the oil storage cylinder 2 is provided with a pressure rod 18, a pressure gauge 19, a relief valve 20 and an oil filling nozzle 21. This structure utilizes the pressure rod 18 to pressurize the hydraulic pressure in the oil storage cylinder 2 into the hydraulic cylinder 3, and then the pressure gauge 19 can actually increase the pressure, so that it is convenient for personnel to control the pressurization and read the pressurization pressure data. The relief valve 20 facilitates the hydraulic oil in the hydraulic cylinder 3 to flow back to the oil storage cylinder 2, thereby retracting the hydraulic cylinder 3, and the oil filling nozzle 21 facilitates the replenishment of oil to the oil storage cylinder 2.

[0025] refer to Figures 1 to 3 As shown, the axis of the hydraulic cylinder 3 is a hollow structure, and the hollow structure of the hydraulic cylinder 3 makes it convenient for the hydraulic cylinder 3 to be sleeved on the steel anchor rod.

[0026] refer to Figures 1 to 3 As shown, a handle 22 is fixedly connected to the outer wall of the hydraulic cylinder 3. The handle 22 of this structure makes it convenient for people to lift the hydraulic cylinder 3, thereby making it convenient to take and carry.

[0027] refer to Figures 1 to 3As shown, the anchor 1 includes an anchor ring 4, a base plate 5, three oblique push blocks 6 and three oblique clamping pieces 7. The base plate 5 is fixedly connected to the bottom of the anchor ring 4. Three grooves 8 are arranged at equal angles on the inner wall of the anchor ring 4. The three oblique push blocks 6 are respectively clamped in the grooves 8. A plurality of symmetrical locking grooves 9 are clamped on the two inner walls opposite to the two grooves 8. The positions of the locking grooves 9 are opened according to the diameters of different steel bar anchors. Convex wings 10 are constructed on both sides of the rear part of the oblique push blocks 6. The convex wings 10 are adapted to be clamped with the locking grooves 9. The three oblique clamping pieces 7 are clamped in the gaps between the three oblique push blocks 6 and the steel bar anchors. The sizes of the oblique clamping pieces 7 are designed according to different steel bar anchors. Threaded holes 12 are arranged at the bottoms of the three oblique push blocks 6. Locking bolts 13 are connected by threads in the threaded holes 12. Three through holes 13 are arranged on the outer wall of the anchor ring 4. Hole 14, the three through holes 14 are connected with the three grooves 8 respectively, and the locking bolt 13 passes through the through hole 14. According to the diameter of the steel anchor rod, the personnel selects the appropriate oblique clamp 7, and at the same time, the personnel inserts the fixing convex wing 10 of the oblique push block 6 into the locking groove 9 at the corresponding position, and then the personnel inserts the locking bolt 13 through the through hole 14 of the anchor ring 4 and connects it with the threaded hole 12 of the oblique push block 6, thereby locking the position of the oblique push block 6, and then puts the anchor ring 4 and the base plate 5 on the steel anchor rod, and makes the base plate 5 contact with the piston end of the hydraulic cylinder 3, and then the personnel inserts the corresponding oblique clamp 7 into the distance between the three oblique push blocks 6 and the steel anchor rod, and knocks and embeds it, thereby completing the installation of the anchor 1, and then the hydraulic cylinder 3 can be started to push the anchor 1, and then the pulling force of the steel anchor rod can be detected;.

[0028] The anchor ring 4 of the above-mentioned anchor 1 adopts an adjustable structure, so that it can adapt to the use of different oblique clips, thereby improving the versatility of the anchor ring 4. In this way, the entire anchor rod pulling instrument does not need to carry a large number of anchor rings 4 when in use, thereby reducing the weight of the equipment, facilitating the transportation and carrying of the equipment, and improving portability.

[0029] refer to Figures 1 to 3 As shown, a circular hole 11 is opened on the bottom plate 5. This structure utilizes the circular hole 11 to facilitate the bottom plate 5 to be inserted onto the steel anchor rod.

[0030] refer to Figures 1 to 3 As shown, the inner walls of the inclined clamps 7 are all provided with arc grooves 16 adapted to the steel anchor rods, and the inner walls of the arc grooves 16 are provided with anti-slip grooves 17. In this structure, the arc grooves 16 on the three inclined clamps 7 form a locking hole adapted to the diameter of the steel anchor rod, and the anti-slip grooves 17 can be used to increase the friction between the inclined clamps 7 and the steel anchor rods, thereby ensuring the connection stability between the anchor and the steel anchor rod.

[0031] The implementation principle of the anchor puller of the embodiment of the present application is as follows: when in use, the personnel first inserts the hydraulic cylinder 3 onto the steel anchor, and then selects a suitable oblique clamping piece 7 according to the diameter of the steel anchor, and at the same time, the personnel inserts the fixing convex wing 10 of the oblique push block 6 into the locking groove 9 at the corresponding position, and then the personnel passes the locking bolt 13 through the through hole 14 of the anchor ring 4 and connects it with the threaded hole 12 of the oblique push block 6, thereby locking the position of the oblique push block 6, and then the anchor ring 4 and the base plate 5 are sleeved on the steel anchor, and the base plate 5 is in contact with the piston end of the hydraulic cylinder 3, and then the personnel inserts the corresponding oblique clamping piece 7 into the spacing between the three oblique push blocks 6 and the steel anchor, and knocks and embeds it, thereby completing the installation of the anchor 1, and then the hydraulic pressure in the oil storage cylinder 2 can be injected into the hydraulic cylinder 3 by pressing the pressure rod 18, so that the hydraulic cylinder 3 pushes the anchor 1, and then the pulling force of the steel anchor is detected, and at this time the pressure gauge 19 can realize the pulling force of the anchor.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anchor rod pulling instrument, comprising an anchor (1), an oil storage cylinder (2) and a hydraulic cylinder (3), characterized in that: The hydraulic cylinder (3) and the anchor (1) are sleeved on the anchor rod, and the hydraulic cylinder (3) is connected to the oil storage cylinder (2) via a high-pressure oil pipe; The anchor (1) comprises an anchor ring (4), a base plate (5), three oblique push blocks (6) and three oblique clamping pieces (7); the base plate (5) is fixedly connected to the bottom of the anchor ring (4); three grooves (8) are arranged at equal angles on the inner wall of the anchor ring (4); the three oblique push blocks (6) are respectively clamped in the grooves (8); two inner walls opposite to each other of the two grooves (8) are clamped with a plurality of symmetrical locking grooves (9); the positions of the locking grooves (9) are opened according to the diameters of different steel anchor rods; convex wings (10) are constructed on both sides of the rear part of the oblique push block (6); the convex wings (10) are adapted to be clamped with the locking grooves (9); the three oblique clamping pieces (7) are clamped in the gaps between the three oblique push blocks (6) and the steel anchor rods; the sizes of the oblique clamping pieces (7) are designed according to different steel anchor rods; The bottom plate (5) is provided with a circular hole (11); The bottoms of the three oblique push blocks (6) are each provided with a threaded hole (12), the threaded holes (12) are internally threadedly connected with locking bolts (13), the outer wall of the anchor ring (4) is provided with three through holes (14), the three through holes (14) are respectively connected to the three grooves (8), and the locking bolts (13) pass through the through holes (14).

2. The anchor puller according to claim 1, characterized in that: The inner wall of the oblique clamping piece (7) is provided with an arc-shaped groove (16) adapted to the steel bar anchor rod, and the inner wall of the arc-shaped groove (16) is provided with an anti-slip pattern (17).

3. The anchor puller according to claim 1, characterized in that: The oil storage cylinder (2) is provided with a pressure rod (18), a pressure gauge (19), a load relief valve (20) and an oil injection nozzle (21).

4. The anchor puller according to claim 1, characterized in that: The axis of the hydraulic cylinder (3) is a hollow structure.

5. The anchor puller according to claim 1, characterized in that: A handle (22) is fixedly connected to the outer wall of the hydraulic cylinder (3).

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