Anti-falling inverted conical anchor bolt

Abstract

The utility model relates to the technical field of anchor bolt fasteners, and discloses an anti-falling inverted conical anchor bolt which comprises a rod body, a first inverted conical rod is arranged at the lower end of the rod body, a second inverted conical rod is arranged at the lower end of the first inverted conical rod, and a fourth inverted conical rod is arranged at the lower end of the second inverted conical rod. According to the anti-falling inverted-cone-shaped anchor bolt, the contact areas of the first inverted-cone rod, the second inverted-cone rod, the third inverted-cone rod and the fourth inverted-cone rod and surrounding chemical rubber pipes are sequentially increased, and the fourth inverted-cone rod, the third inverted-cone rod, the second inverted-cone rod and the first inverted-cone rod are gradually rotated to be inserted into preformed holes during installation; the sizes of fragments of the chemical rubber pipes in gaps between the outer walls of the fourth back taper rod, the third back taper rod, the second back taper rod and the first back taper rod and the wall of the reserved hole are gradually reduced, the difficulty during anchor bolt installation is reduced, better insertion performance and stability are provided, the lower end of the fourth back taper rod crushes the chemical rubber pipes in the reserved hole during installation, and the chemical rubber pipes are discharged outwards, so that the installation efficiency is improved. And the fragments of the chemical rubber pipe can be in contact with the inverted cone rods conveniently, and the mounting efficiency of the anchor bolt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of anchor bolt fasteners, in particular to an anti-falling inverted cone anchor bolt. Background Art

[0002] Chemical anchors are a special anchoring system used to fix and support structures. They mainly provide a strong fixing effect through chemical reactions. This type of anchor is usually used on substrates such as concrete, brick walls, and stone to provide reliable support and fixation.

[0003] China Utility Model Patent Publication No.: CN 213839181 U, discloses: a high-strength earthquake-resistant inverted cone anchor bolt, wherein the high-strength earthquake-resistant inverted cone anchor bolt is provided with a curved groove on the second cone surface and a sawtooth groove on the transition surface, so that the curing agent and the particles in the curing agent can enter the curved groove and the sawtooth groove, thereby increasing the contact area between the curing agent and the particles in the curing agent and the anchor bolt body, thereby improving the bonding firmness between the anchor bolt body and the wall, and further improving the tensile strength of the anchor bolt body, but the inclinations of the multiple diameter-changing sections of the inverted cone anchor bolt are the same, and the deeper the anchor bolt is installed, the greater the installation resistance, and the lower the installation efficiency. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide an anti-falling inverted cone anchor bolt, which can effectively solve the problems in the prior art that the slopes of multiple diameter-changing sections of the inverted cone anchor bolt are the same, the deeper the anchor bolt is installed, the greater the installation resistance is, and the installation efficiency is low.

[0005] The technical solution adopted by the utility model is: an anti-fall inverted cone anchor bolt, comprising a rod body, the lower end of the rod body is provided with an inverted cone rod 1, the lower end of the inverted cone rod 1 is provided with an inverted cone rod 2, the lower end of the inverted cone rod 2 is provided with an inverted cone rod 4, the upper end of the rod body is provided with a connecting part, the upper end of the connecting part is provided with a screw, the outer side of the screw is provided with threaded teeth, the upper end of the screw is provided with a connecting end rod, the outer side of the screw is provided with a gasket, and a nut is provided above the gasket, the inclination of the inverted cone rod 1 is smaller than the inclination of the inverted cone rod 2, the inclination of the inverted cone rod 2 is smaller than the inclination of the inverted cone rod 3, and the inclination of the inverted cone rod 3 is smaller than the inclination of the inverted cone rod 4.

[0006] Through the above technical scheme, the inclinations of the inverted cone rod one, the inverted cone rod two, the inverted cone rod three and the inverted cone rod four increase successively, and the contact areas of the inverted cone rod one, the inverted cone rod two, the inverted cone rod three and the inverted cone rod four with the surrounding chemical hoses increase successively. During installation, as the inverted cone rod four, the inverted cone rod three, the inverted cone rod two and the inverted cone rod one are gradually rotated and inserted into the reserved hole, the volume of the chemical hose fragments in the gap between the outer wall of the inverted cone rod four, the inverted cone rod three, the inverted cone rod two and the inverted cone rod one and the wall of the reserved hole decreases step by step, the difficulty of installing the anchor bolt is reduced, and better insertion performance and stability are provided.

[0007] Preferably, the rod body, inverted cone rod one, inverted cone rod two, inverted cone rod three, inverted cone rod four, screw thread teeth and connecting end rod are cast by an integrated molding process, and the cross-section of the connecting end rod is a hexagonal structure.

[0008] Through the above technical scheme, the rod body, inverted cone rod one, inverted cone rod two, inverted cone rod three, inverted cone rod four, screw thread teeth and connecting end rod are cast by an integrated molding process, which ensures the integrity and strength of the anchor bolt. The hexagonal connecting end rod is easy to connect and install using common tools.

[0009] Preferably, the diameter of the screw rod is smaller than the diameter of the connecting end rod, and the inner diameter of the gasket is smaller than the diameter of the connecting end rod.

[0010] Through the above technical solution, a gasket is provided, which is sleeved on the outside of the screw rod and cooperates with the nut to fix the workpiece on the anchor bolt, which is easy to use.

[0011] Preferably, the screw is threadedly connected to the nut via thread teeth, and the diameter of the rod body is 10 mm to 11 mm.

[0012] Through the above technical solution, a reserved hole is opened on the installation surface during use, the reserved hole is cleaned with a brush and an air gun, the chemical hose is inserted into the reserved hole, the connecting end rod is connected using a tool, the anchor bolt is rotated and inserted into the reserved hole, the chemical hose is crushed until the anchor bolt penetrates into the reserved hole, and after waiting for an appropriate hardening time, the installation can be completed.

[0013] Preferably, the upper portion of the inverted cone rod 1 is in a truncated cone structure, and the outer side of the inverted cone rod 1 is provided with fine grooves.

[0014] Through the above technical scheme, an inverted cone rod with a truncated cone structure is provided, which increases the contact area between the anchor bolt and the surrounding chemical hose and improves the anchoring force. The outer side of the inverted cone rod is provided with fine grooves to make the surface of the anchor bolt rougher, increase the friction, and thus improve the anchoring effect.

[0015] Preferably, the lower cross-section of the inverted cone rod four is a "V"-shaped structure with an angle of 25° to 35°, and the height of the inverted cone rod four is greater than the height of the inverted cone rod three.

[0016] Through the above technical solution, the lower cross-section of the inverted cone rod four is in a "V"-shaped structure. During installation, the lower end of the inverted cone rod four will crush the chemical hose in the reserved hole and discharge it to the outside, making it easier for the chemical hose fragments to contact with the inverted cone rods one, two, and three, thereby improving the installation efficiency of the anchor bolts.

[0017] Compared with the prior art, the utility model provides an anti-falling inverted cone anchor bolt, which has the following beneficial effects:

[0018] 1. The anti-falling inverted cone anchor bolt is provided with an inverted cone rod 1 with a truncated cone structure, which increases the contact area between the anchor bolt and the surrounding chemical hose and improves the anchoring force. The outer side of the inverted cone rod 1 is provided with fine grooves, which makes the surface of the anchor bolt rougher, improves the friction force, and thus improves the anchoring effect;

[0019] 2. The anti-falling inverted cone anchor bolt has an inclination of the inverted cone rod one, the inverted cone rod two, the inverted cone rod three and the inverted cone rod four that increases in sequence, and the contact areas of the inverted cone rod one, the inverted cone rod two, the inverted cone rod three and the inverted cone rod four with the surrounding chemical hoses increase in sequence. During installation, as the inverted cone rod four, the inverted cone rod three, the inverted cone rod two and the inverted cone rod one are gradually rotated and inserted into the reserved hole, the volume of the chemical hose fragments in the gap between the outer walls of the inverted cone rod four, the inverted cone rod three, the inverted cone rod two and the inverted cone rod one and the wall of the reserved hole is gradually reduced, the difficulty of installing the anchor bolt is reduced, and better insertion performance and stability are provided. The lower cross-section of the inverted cone rod four is a "V"-shaped structure. During installation, the lower end of the inverted cone rod four crushes the chemical hose in the reserved hole and discharges it outward, which facilitates the contact between the chemical hose fragments and the inverted cone rod one, the inverted cone rod two and the inverted cone rod three, thereby improving the installation efficiency of the anchor bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the disassembled structure of the rod body and the gasket of the utility model;

[0023] Figure 4 It is a schematic diagram of an enlarged structure of the rod body and the inverted cone rod of the utility model;

[0024] Figure 5 It is a schematic diagram of a cross-sectional structure of a rod body and an inverted cone rod of the utility model.

[0025] Among them: 1. rod body; 2. inverted cone rod 1; 3. inverted cone rod 2; 4. inverted cone rod 3; 5. inverted cone rod 4; 6. connecting part; 7. screw rod; 8. threaded teeth; 9. connecting end rod; 10. gasket; 11. nut. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] Embodiment 1: Figure 1-5 As shown, the anti-falling inverted cone anchor bolt provided by the utility model includes a rod body 1, an inverted cone rod 2 is arranged at the lower end of the rod body 1, an inverted cone rod 2 is arranged at the lower end of the inverted cone rod 2, an inverted cone rod 4 5 is arranged at the lower end of the inverted cone rod 23, a connecting part 6 is arranged at the upper end of the rod body 1, a screw rod 7 is arranged at the upper end of the connecting part 6, thread teeth 8 are arranged on the outer side of the screw rod 7, a connecting end rod 9 is arranged at the upper end of the screw rod 7, a gasket 10 is arranged on the outer side of the screw rod 7, and a nut 11 is arranged above the gasket 10.

[0028] Specifically, the rod body 1, the inverted cone rod 1 2, the inverted cone rod 2 3, the inverted cone rod 3 4, the inverted cone rod 4 5, the screw rod 7 threaded teeth 8 and the connecting end rod 9 are cast by an integrated molding process, and the cross section of the connecting end rod 9 is a hexagonal structure. The advantage is that the rod body 1, the inverted cone rod 1 2, the inverted cone rod 2 3, the inverted cone rod 3 4, the inverted cone rod 4 5, the screw rod 7 threaded teeth 8 and the connecting end rod 9 are cast by an integrated molding process, which ensures the integrity and strength of the anchor bolt, and the hexagonal connecting end rod 9 is easy to connect and install using common tools.

[0029] Specifically, the diameter of the screw rod 7 is smaller than the diameter of the connecting end rod 9, and the inner diameter of the gasket 10 is smaller than the diameter of the connecting end rod 9. The advantage is that the gasket 10 is provided, the gasket 10 is sleeved on the outer side of the screw rod 7, and cooperates with the nut 11 to fix the workpiece on the anchor bolt, which is convenient for use.

[0030] Specifically, the screw rod 7 is threadedly connected to the nut 11 through the thread teeth 8, and the diameter of the rod body 1 is 10mm-11mm. The advantage is that when in use, a reserved hole is opened on the installation surface, the reserved hole is cleaned with a brush and an air gun, the chemical hose is inserted into the reserved hole, the connecting end rod 9 is connected with a tool, the anchor bolt is rotated and inserted into the reserved hole, the chemical hose is crushed until the anchor bolt goes deep into the reserved hole, and after waiting for a suitable hardening time, the installation can be completed.

[0031] Embodiment 2: Figure 2-5 As shown, as an improvement to the previous embodiment.

[0032] Specifically, the upper part of the inverted cone rod 2 is in a truncated cone structure, and fine grooves are provided on the outer side of the inverted cone rod 2. The advantage is that the inverted cone rod 2 with a truncated cone structure is provided to increase the contact area between the anchor bolt and the surrounding chemical hose, thereby improving the anchoring force, and the fine grooves are provided on the outer side of the inverted cone rod 2 to make the surface of the anchor bolt rougher, thereby improving the friction force and thus improving the anchoring effect.

[0033] Specifically, the inclination of the inverted cone rod 1 2 is smaller than the inclination of the inverted cone rod 2 3, the inclination of the inverted cone rod 2 3 is smaller than the inclination of the inverted cone rod 3 4, and the inclination of the inverted cone rod 3 4 is smaller than the inclination of the inverted cone rod 4 5. The advantages are that the inclinations of the inverted cone rod 1 2, the inverted cone rod 2 3, the inverted cone rod 3 4 and the inverted cone rod 4 5 increase in sequence, and the contact areas of the inverted cone rod 1 2, the inverted cone rod 2 3, the inverted cone rod 3 4 and the inverted cone rod 4 5 with the surrounding chemical hoses increase in sequence. During installation, as the inverted cone rod 4 5, the inverted cone rod 3 4, the inverted cone rod 2 3 and the inverted cone rod 1 2 are gradually rotated and inserted into the reserved hole, the volume of the chemical hose fragments in the gap between the outer wall of the inverted cone rod 4 5, the inverted cone rod 3 4, the inverted cone rod 2 3 and the inverted cone rod 1 2 and the wall of the reserved hole is gradually reduced, the difficulty of installing the anchor bolt is reduced, and better insertion performance and stability are provided.

[0034] Specifically, the lower cross section of the inverted cone rod 4 5 is a "V"-shaped structure with an angle of 25° to 35°, and the height of the inverted cone rod 4 5 is greater than the height of the inverted cone rod 3 4. The advantage is that the lower cross section of the inverted cone rod 4 5 is a "V"-shaped structure, and during installation, the lower end of the inverted cone rod 4 5 crushes the chemical hose in the reserved hole and discharges it to the outside, making it easier for the chemical hose fragments to contact the inverted cone rod 1 2, the inverted cone rod 2 3, and the inverted cone rod 3 4, thereby improving the installation efficiency of the anchor bolt.

[0035] Working principle: when in use, a reserved hole is opened on the installation surface, the reserved hole is cleaned with a brush and an air gun, the chemical hose is inserted into the reserved hole, a tool is used to connect the connecting end rod 9, the anchor bolt is rotated to insert into the reserved hole, and the lower end of the inverted cone rod four 5 crushes the chemical hose in the reserved hole and discharges it to the outside, so that the chemical hose fragments are in contact with the inverted cone rod one 2, the inverted cone rod two 3, and the inverted cone rod three 4. As the inverted cone rod four 5, the inverted cone rod three 4, the inverted cone rod two 3 and the inverted cone rod one 2 are gradually rotated and inserted into the reserved hole, the volume of the chemical hose fragments in the gap between the outer wall of the inverted cone rod four 5, the inverted cone rod three 4, the inverted cone rod two 3 and the inverted cone rod one 2 and the wall of the reserved hole is gradually reduced, the difficulty of installing the anchor bolt is reduced, and better insertion performance and stability are provided. After waiting for the appropriate hardening time, the installation can be completed.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-falling inverted cone anchor bolt, comprising a rod body (1), characterized in that: The lower end of the rod body (1) is provided with an inverted cone rod 1 (2), the lower end of the inverted cone rod 1 (2) is provided with an inverted cone rod 2 (3), the lower end of the inverted cone rod 2 (3) is provided with an inverted cone rod 4 (5), the upper end of the rod body (1) is provided with a connecting portion (6), the upper end of the connecting portion (6) is provided with a screw rod (7), the outer side of the screw rod (7) is provided with thread teeth (8), the upper end of the screw rod (7) is provided with a connecting end rod (9), the outer side of the screw rod (7) is provided with a gasket (10), and the upper part of the gasket (10) is provided with a nut (11), the inclination of the inverted cone rod 1 (2) is smaller than the inclination of the inverted cone rod 2 (3), the inclination of the inverted cone rod 2 (3) is smaller than the inclination of the inverted cone rod 3 (4), and the inclination of the inverted cone rod 3 (4) is smaller than the inclination of the inverted cone rod 4 (5).

2. The anti-falling inverted cone anchor bolt according to claim 1, characterized in that: The rod body (1), the first inverted cone rod (2), the second inverted cone rod (3), the third inverted cone rod (4), the fourth inverted cone rod (5), the screw thread teeth (8) and the connecting end rod (9) are cast by an integral molding process, and the cross section of the connecting end rod (9) is a hexagonal structure.

3. The anti-falling inverted cone anchor bolt according to claim 1, characterized in that: The diameter of the screw rod (7) is smaller than the diameter of the connecting end rod (9), and the inner diameter of the gasket (10) is smaller than the diameter of the connecting end rod (9).

4. The anti-falling inverted cone anchor bolt according to claim 1, characterized in that: The screw rod (7) is threadably connected to the nut (11) via thread teeth (8); the diameter of the rod body (1) is 10 mm to 11 mm.

5. The anti-falling inverted cone anchor bolt according to claim 1, characterized in that: The upper part of the inverted cone rod (2) is in a truncated cone structure, and the outer side of the inverted cone rod (2) is provided with fine grooves.

6. The anti-falling inverted cone anchor bolt according to claim 1, characterized in that: The lower cross-section of the inverted cone rod four (5) is a "V"-shaped structure with an angle of 25° to 35°, and the height of the inverted cone rod four (5) is greater than the height of the inverted cone rod three (4).

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