Anti-pull-out safety anchorage device

Abstract

The utility model discloses an anti-pull-out safety anchorage device which comprises a screw rod, the outer wall of one end of the screw rod is sleeved with a clamping sleeve, the end face of the other end of the screw rod is fixedly connected with a tooth column, the outer wall of the tooth column is fixedly provided with tooth protrusions, the end face of the tooth column is fixedly connected with a hexagonal top cover, and the outer wall, on the side of the tooth column, of the screw rod is sleeved with a nut. The nut is fixedly installed on the side outer wall of the positioning sleeve, a positioning arm is fixedly connected to the edge of the side outer wall, away from the positioning sleeve, of the nut, a rotary knob is movably connected to the inner wall of the end of the positioning arm, and a toothed plate is movably installed at the end of the rotary knob. According to the anti-pull-out safety anchorage device, the stability between the screw rod and the screw cap is improved, the loosening phenomenon between the screw rod and the screw cap is avoided, and therefore the use stability of the anchorage device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of safety anchors, in particular to a safety anchor that is prevented from being pulled out. Background Art

[0002] Safety anchor is a common fixing tool, widely used in various industries, such as reinforcement of concrete structures in the construction field or positioning of ships in the shipping field. With the continuous development of related technologies, safety anchors have also evolved into different types. Common ones include mechanical anchors, chemical anchors, post-tensioning anchors and expansion-type anchors. Anti-pullout safety anchors are also a type of safety anchor, which has improved stability compared to ordinary safety anchors.

[0003] However, the existing anti-pullout safety anchor has the following problems when used:

[0004] In order to prevent the screw and nut on the safety anchor from loosening and affecting the use effect of the safety anchor, it is necessary to improve the stability between the screw and the nut. However, the stability between the screw and the nut on the existing anti-pullout safety anchor is insufficient, which leads to the phenomenon of loosening between the screw and the nut, thereby easily affecting the stability of the anchor.

[0005] In view of the above problems, it is urgent to carry out innovative design based on the original anti-pullout safety anchor. Utility Model Content

[0006] The purpose of the utility model is to provide an anti-pullout safety anchor to solve the problem in the background art that the stability between the screw and the nut on the existing anti-pullout safety anchor is insufficient, which easily affects the stability of the anchor.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an anti-pullout safety anchor, comprising a screw, an outer wall sleeve of one end of the screw is provided with a clamping sleeve, and the other end face of the screw is fixedly connected to a tooth column, and the outer wall of the tooth column is fixedly provided with a tooth protrusion, and the end face of the tooth column is fixedly connected to a hexagonal top cover, the outer wall sleeve of the screw on the side of the tooth column is provided with a nut, and the nut is fixedly installed on the side outer wall of the positioning sleeve, the nut is fixedly connected to a positioning arm at the edge of the side outer wall away from the positioning sleeve, and the inner wall of the end of the positioning arm is movably connected to a knob, and the end of the knob is movably installed with a tooth plate.

[0008] Preferably, the screw and the ferrule are fitted together, and the screw and the nut are threadedly connected.

[0009] Preferably, the ferrule and the positioning sleeve fit together.

[0010] Preferably, the positioning arm and the knob are threadedly arranged, and the knob and the gear plate form a rotating structure.

[0011] Preferably, the tooth plate and the tooth cam are meshingly connected.

[0012] Preferably, a clamping rod is fixedly connected to the side outer wall of the tooth plate, and the clamping rod and the positioning arm form a sliding structure, and the cross-section of the clamping rod is set to be an "L" shape.

[0013] Compared with the prior art, the beneficial effects of the present invention are: the anti-pullout safety anchor improves the stability between the screw and the nut, avoids the loosening phenomenon between the screw and the nut, and thus ensures the stability of the anchor;

[0014] By rotating the knob, the knob drives the tooth plate to move, and then the tooth plate moves, so that the tooth plate engages with the tooth protrusion, thereby limiting the screw, so that the screw and the nut are in a relatively stable state. Therefore, the anchor improves the stability between the screw and the nut, avoids loosening between the screw and the nut, and ensures the stability of the anchor. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a partial side view of the structure of the nut of the utility model;

[0017] Figure 3 For this utility model Figure 1 A in the middle is an enlarged structural diagram;

[0018] Figure 4 For this utility model Figure 1 Enlarged structural diagram at point B in the middle.

[0019] In the figure: 1. Screw; 2. Clamping sleeve; 3. Tooth column; 4. Tooth protrusion; 5. Hexagonal top cover; 6. Nut; 7. Positioning sleeve; 8. Positioning arm; 9. Knob; 10. Tooth plate; 11. Clamping rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figure 1-4The utility model provides a technical solution: an anti-pullout safety anchor, comprising a screw 1, a clamping sleeve 2, a tooth column 3, a tooth protrusion 4, a hexagonal top cover 5, a nut 6, a positioning sleeve 7, a positioning arm 8, a knob 9, a tooth plate 10 and a clamping rod 11. The outer wall of one end of the screw 1 is sleeved with a clamping sleeve 2, and the end face of the other end of the screw 1 is fixedly connected with a tooth column 3, and the outer wall of the tooth column 3 is fixedly provided with a tooth protrusion 4, and the end face of the tooth column 3 is fixedly connected with a hexagonal top cover 5, the outer wall of the screw 1 on the side of the tooth column 3 is sleeved with a nut 6, and the nut 6 is fixedly installed on the side outer wall of the positioning sleeve 7, the edge of the outer wall of the nut 6 away from the positioning sleeve 7 is fixedly connected to the positioning arm 8, and the inner wall of the end of the positioning arm 8 is movably connected with a knob 9, and the end of the knob 9 is movably installed with a tooth plate 10.

[0022] The screw 1 and the ferrule 2 are fitted together, and the screw 1 and the nut 6 are threadedly connected, so that the user can use a wrench with one hand to clamp the nut 6, and use a wrench with the other hand to clamp the hexagonal top cover 5 and rotate it. The screw 1 rotates relative to the nut 6. At this time, the screw 1 moves in the nut 6, so that the screw 1 squeezes the ferrule 2 to deform, and then limits one end of the anchor, thereby improving the anti-pullout ability of the anchor.

[0023] The ferrule 2 and the positioning sleeve 7 fit together, so that the ferrule 2 can be limited by the positioning sleeve 7 fitting the ferrule 2, thereby preventing the screw 1 and the ferrule 2 from moving at the same time.

[0024] The positioning arm 8 and the knob 9 are threadedly arranged, and the knob 9 and the tooth plate 10 form a rotating structure, which is convenient for the user to rotate the knob 9, so that the knob 9 moves relative to the positioning arm 8, thereby driving the tooth plate 10 to move.

[0025] The tooth plate 10 is meshedly connected with the tooth protrusion 4, which facilitates the tooth plate 10 to move and mesh with the tooth protrusion 4, thereby keeping the screw 1 and the nut 6 in a relatively stable state.

[0026] The outer side wall of the tooth plate 10 is fixedly connected with a clamping rod 11, and the clamping rod 11 and the positioning arm 8 form a sliding structure, and the positive cross-sectional shape of the clamping rod 11 is set to an "L" shape, so that when the tooth plate 10 moves, the tooth plate 10 drives the clamping rod 11 to slide relative to the positioning arm 8, so that the tooth plate 10 moves stably.

[0027] Working principle: When using the anti-pullout safety anchor, first Figure 1-4As shown, the user drills a hole in the wall, then inserts the screw 1 and the ferrule 2 into the hole in the wall, then puts the nut 6 on the screw 1 and rotates the nut 6, then the nut 6 moves relative to the screw 1, and then the nut 6 is driven to insert into the hole, at this time the positioning sleeve 7 and the ferrule 2 fit together, then the user uses a wrench to clamp the nut 6 with one hand, and uses a wrench to clamp the hexagonal top cover 5 with the other hand to rotate, then the screw 1 rotates relative to the nut 6, at this time the screw 1 moves in the nut 6, then as the screw 1 moves, the screw 1 squeezes the ferrule 2 to expand Deformation, thereby preventing the safety anchor from being pulled out by the deformation of the sleeve 2, and then the user rotates the knob 9, and then the knob 9 moves relative to the positioning arm 8, and then the knob 9 drives the tooth plate 10 to move so that the tooth plate 10 engages the tooth protrusion 4, and as the tooth plate 10 moves, the tooth plate 10 drives the relative positioning arm 8 to slide, thereby limiting the tooth column 3. At this time, the screw 1 and the nut 6 are in a relatively stable state, so the anchor improves the stability between the screw 1 and the nut 6, avoids loosening between the screw 1 and the nut 6, and ensures the stability of the anchor.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A safety anchor for preventing pullout, comprising a screw (1), characterized in that: The outer wall of one end of the screw rod (1) is sleeved with a clamping sleeve (2), and the end face of the other end of the screw rod (1) is fixedly connected with a tooth column (3), and the outer wall of the tooth column (3) is fixedly provided with a tooth protrusion (4), and the end face of the tooth column (3) is fixedly connected with a hexagonal top cover (5), the outer wall of the screw rod (1) on the side of the tooth column (3) is sleeved with a nut (6), and the nut (6) is fixedly installed on the outer wall of the side of the positioning sleeve (7), the nut (6) is fixedly connected to the outer edge of the side of the positioning sleeve (7), and the inner wall of the end of the positioning arm (8) is movably connected with a knob (9), and the end of the knob (9) is movably installed with a tooth plate (10).

2. The anti-pullout safety anchor according to claim 1, characterized in that: The screw (1) and the ferrule (2) are fitted together, and the screw (1) and the nut (6) are threadedly connected.

3. The anti-pullout safety anchor according to claim 1, characterized in that: The clamping sleeve (2) and the positioning sleeve (7) are fitted together.

4. The anti-pullout safety anchor according to claim 1, characterized in that: The positioning arm (8) and the knob (9) are threadedly arranged, and the knob (9) and the toothed plate (10) form a rotating structure.

5. The anti-pullout safety anchor according to claim 1, characterized in that: The tooth plate (10) and the tooth protrusion (4) are meshingly connected.

6. The anti-pullout safety anchor according to claim 1, characterized in that: The side outer wall of the tooth plate (10) is fixedly connected with a clamping rod (11), and the clamping rod (11) and the positioning arm (8) form a sliding structure, and the cross-section shape of the clamping rod (11) is set to an "L" shape.

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