An expansion bolt

Abstract

The utility model discloses an expansion bolt, including metal strip, two support belts and collection ring, be provided with the mounting screw hole on the metal strip, one end of two support belts is respectively hinged in one side of metal strip, and the other end of two support belts is provided with the pull ring, the collection ring sliding cover is established in the outside of two support belts, the middle part of collection ring is provided with the positioning hole, and the positioning hole is opposite the mounting screw hole, the utility model discloses convenient to use, and safe in use.

Description

Technical Field

[0001] This utility model belongs to the field of hollow wall expansion bolt technology, specifically relating to an expansion bolt. Background Technology

[0002] Heavy-duty expansion bolts for hollow walls are designed for installations on hollow walls with varying product requirements, load-bearing capacities, and wall thicknesses. A new generation of heavy-duty expansion bolts / elbow bolts for hollow walls has been introduced. These new bolts feature longer and stronger plastic straps and are now suitable for use on hollow walls with base materials ranging from 10-92mm in thickness. Unlike other plastic expansion tubes, these new heavy-duty expansion bolts can solve all problems related to wall properties (plasterboard, hollow bricks, hollow precast slabs, etc.) and the weight capacity of different objects. They can support up to 150 kg or more. These heavy-duty elbow bolts / elbow bolts are ideal for installing heavy objects, LCD TVs, wall-mounted TVs, air conditioner indoor units, water heaters, large picture frames, load-bearing brackets, cabinets, and other appliances on hollow walls.

[0003] Existing expansion bolts often have their support bands with free ends that are simply block-shaped. During use, the fingers need to hold the support band or block end at all times. These parts often have some relatively sharp edges, which pose a risk of injury to the fingers. Furthermore, it is not convenient to place a metal strip and pull the support band or block end to straighten it. Utility Model Content

[0004] This utility model provides an expansion bolt to solve the above-mentioned technical problems.

[0005] The solution adopted by this utility model to achieve its technical effect is as follows:

[0006] An expansion bolt includes a metal strip, two support bands, and a retaining ring; the metal strip has mounting screw holes; one end of each of the two support bands is hinged to one side of the metal strip; the other end of each support band has a pull ring; the retaining ring is slidably sleeved on the outside of the two support bands; a positioning hole is provided in the middle of the retaining ring; the positioning hole is directly opposite the mounting screw holes.

[0007] Preferably, a clearance groove is provided on one side of the metal strip; one end of the two support belts is hinged in the clearance groove.

[0008] Preferably, one end of the support belt is provided with a reinforcing connector; the reinforcing connector is hinged in the clearance groove; and a reinforcing seat is provided on the inner side of the reinforcing connector.

[0009] Preferably, a reinforcing strip is provided on the outer side of the support strip; the reinforcing strip is integrally connected to the reinforcing connector.

[0010] Preferably, guide holes are provided on both sides of the gathering ring; the guide holes are slidably sleeved on the outside of the support belt; openings communicating with the guide holes are provided on both sides of the gathering ring; the upper and lower sides of the openings are slidably clamped on the upper and lower sides of the reinforcing strip.

[0011] Preferably, the inner side of the support belt is provided with a unidirectional guide tooth; the inner wall of the guide hole is provided with a propulsion guide tooth; the propulsion guide tooth and the unidirectional guide tooth mesh with each other, and the tooth slope of the unidirectional guide tooth faces opposite to that of the tooth slope of the propulsion guide tooth.

[0012] Preferably, a connecting rod is provided between the support band and the pull ring; the connecting rod is integrally connected to the reinforcing strip; the thickness of the connecting rod is less than the distance between the upper and lower sides of the opening.

[0013] Preferably, the pull ring includes two semi-ring frames; each of the semi-ring frames is integrally connected to one end of a connecting rod; the two semi-ring frames are interlocked with each other through interlocking posts and interlocking holes to form the pull ring.

[0014] Preferably, the outer side of the semi-ring frame is provided with reinforcing ribs.

[0015] Preferably, the diameter of the mounting screw hole is 4-7 mm.

[0016] The beneficial effects of this utility model are as follows: One end of the support belt is provided with a pull ring. After the support belt is rotated to be vertically aligned with the metal strip, and the metal strip is manually passed through the hole in the wall, the support belt is simply turned back to make the metal strip horizontal, and then the pull ring is pulled backward with the finger to make the metal strip horizontally aligned with the inner wall. This is very convenient and there is no risk of injuring the fingers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the expansion bolt from the front view of an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the expansion bolt from the rear view of an embodiment of the present utility model;

[0019] Figure 3 This is a front view diagram of the expansion bolt after part of it has been disassembled, as disclosed in an embodiment of this utility model.

[0020] Figure 4 This is a rear view diagram of the expansion bolt after a portion has been disassembled, as disclosed in an embodiment of this utility model.

[0021] Identification: 1-Metal strip, 11-Mounting screw hole, 12-Void groove, 2-Support band, 21-One-way guide tooth, 3-Gathering ring, 31-Positioning hole, 32-Guide hole, 33-Opening, 34-Propulsion guide tooth, 4-Pull ring, 41-Half ring frame, 42-Matching post, 43-Matching hole, 44-Reinforcing rib, 5-Reinforcing connector, 51-Reinforcing seat, 6-Reinforcing strip, 7-Connecting rod. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or may have an intervening element present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or may have an intervening element present. When an element is referred to as being "fixedly connected to" another element, it can be a common fixing connection method such as welding, bolting, or gluing.

[0023] Please refer to Figure 1-4 The preferred embodiment of this utility model discloses an expansion bolt, including a metal strip 1, two support bands 2, and a retaining ring 3; the metal strip 1 is provided with a mounting screw hole 11; one end of each of the two support bands 2 is hinged to one side of the metal strip 1; the other end of each of the two support bands 2 is provided with a pull ring 4; the retaining ring 4 is slidably sleeved on the outside of the two support bands 2; the middle of the retaining ring 3 is provided with a positioning hole 31; the positioning hole 31 is directly opposite the mounting screw hole 11.

[0024] Specifically, a clearance groove 12 is provided on one side of the metal strip 1; one end of the two support belts 2 is hinged in the clearance groove 12.

[0025] Specifically, one end of the support belt 2 is provided with a reinforcing connector 5; the reinforcing connector 5 is hinged in the clearance groove 12; and a reinforcing seat 51 is provided on the inner side of the reinforcing connector 5.

[0026] Specifically, a reinforcing strip 6 is provided on the outer side of the support strip 2; the reinforcing strip 6 is integrally connected to the reinforcing connector 5.

[0027] Specifically, guide holes 32 are provided on both sides of the gathering ring 3; the guide holes 32 are slidably sleeved on the outside of the support belt 2; openings 33 communicating with the guide holes 32 are provided on both sides of the gathering ring 3; the upper and lower sides of the openings 33 are slidably clamped on the upper and lower sides of the reinforcing strip 6.

[0028] Specifically, the inner side of the support belt 2 is provided with a unidirectional guide tooth 21; the inner wall of the guide hole 31 is provided with a propulsion guide tooth 34; the propulsion guide tooth 34 meshes with the unidirectional guide tooth 21, and the tooth slope of the unidirectional guide tooth 21 is opposite to the tooth slope of the propulsion guide tooth 34.

[0029] Specifically, a connecting rod 7 is provided between the support band 2 and the pull ring 4; the connecting rod 7 is integrally connected to the reinforcing strip 6; the thickness of the connecting rod 7 is less than the distance between the upper and lower sides of the opening 32.

[0030] Specifically, the pull ring 4 includes two semi-ring frames 41; each of the semi-ring frames 41 is integrally connected to one end of a connecting rod 7; the two semi-ring frames 41 are interlocked with each other through interlocking posts 42 and interlocking holes 43 to form the pull ring.

[0031] Specifically, the outer side of the semi-ring frame 41 is provided with reinforcing ribs 44.

[0032] Specifically, the diameter of the mounting screw hole 2 is 4-7 mm.

[0033] As can be seen from the above description, this utility model is convenient and safe to use.

[0034] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. It should be noted that the protection scope of the present utility model includes, but is not limited to, the above embodiments; the specific structures disclosed in the accompanying drawings are only preferred embodiments of the present utility model. Those skilled in the art can develop other embodiments based on this. Any simple modifications or equivalent substitutions that do not depart from the innovative concept of the present utility model are all covered by the present utility model and fall within the protection scope of the present utility model.

Claims

1. An expansion bolt, characterized in that, include: Metal strip; the metal strip is provided with mounting screw holes; Two support straps; one end of each of the two support straps is hinged to one side of the metal strip; the other end of each of the two support straps is provided with a pull ring; the pull ring includes two semi-ring frames; each of the semi-ring frames is integrally connected to one end of a connecting rod; the two semi-ring frames are interlocked with each other through interlocking posts and interlocking holes to form the pull ring; A gathering ring; the gathering ring is slidably sleeved on the outside of the two support belts; a positioning hole is provided in the middle of the gathering ring; the positioning hole is directly opposite the mounting screw hole.

2. An expansion bolt according to claim 1 wherein: A clearance groove is provided on one side of the metal strip; one end of the two support belts is hinged in the clearance groove.

3. An expansion bolt according to claim 2, characterized in that: One end of the support belt is provided with a reinforcing connector; the reinforcing connector is hinged in the clearance groove; a reinforcing seat is provided on the inner side of the reinforcing connector.

4. An expansion bolt according to claim 3, characterized in that: A reinforcing strip is provided on the outer side of the support strip; the reinforcing strip is integrally connected to the reinforcing connector.

5. An expansion bolt according to claim 4, characterized in that: The gathering ring has guide holes on both sides; the guide holes are slidably sleeved on the outside of the support belt; the gathering ring has openings on both sides that communicate with the guide holes; the upper and lower sides of the openings are slidably clamped on the upper and lower sides of the reinforcing strip.

6. An expansion bolt according to claim 5, characterized in that: The inner side of the support belt is provided with a unidirectional guide tooth; the inner wall of the guide hole is provided with a propulsion guide tooth; the propulsion guide tooth and the unidirectional guide tooth mesh with each other, and the tooth slope of the unidirectional guide tooth is opposite to the tooth slope of the propulsion guide tooth.

7. An expansion bolt according to claim 6, characterized in that: A connecting rod is provided between the support band and the pull ring; the connecting rod is integrally connected to the reinforcing strip; the thickness of the connecting rod is less than the distance between the upper and lower sides of the opening.

8. An expansion bolt according to claim 1, characterized in that: The outer side of the semi-ring frame is provided with reinforcing ribs.

9. An expansion bolt according to claim 1, characterized in that: The diameter of the mounting screw holes is 4-7 mm.

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