Expansion screw with connecting ring

Abstract

The expansion screw with the connecting ring comprises a sleeve, a bolt, a nut and a hanging ring part, a plurality of notches are formed in the wall body of the sleeve and extend upwards along the bottom of the sleeve, the nut is arranged at the top of the sleeve, the bolt is arranged in the sleeve in a penetrating mode and connected with the nut in a threaded mode, and the hanging ring part is arranged on the sleeve. The bottom of the bolt penetrates through the bottom of the sleeve and is provided with an expansion head, the diameter of the expansion head is larger than that of the inner side face of the sleeve, and the top of the bolt is in threaded connection with the hanging ring part. The expansion screw is provided with the hanging ring part, a rope can penetrate through the hanging ring part to be wound and connected, the outdoor advertisement banner is better fixed, the installation difficulty of installation workers is reduced, and the rope and the hanging ring are not prone to loosening after being wound and connected.

Description

[Technical field]

[0001] The utility model relates to an expansion screw with a connecting ring. [Background technology]

[0002] Expansion screws are usually used to fix on walls, to install fixed equipment, or to hoist objects. The structure of expansion screws on the market is relatively simple, and the improved expansion screws that have appeared are basically improved for their expansion structure. On some outdoor advertising banners, it is usually necessary to straighten the four corners of the advertising banner. The installer needs to pre-install the expansion screws on the wall, and then use ropes to tie and connect the exposed bolts of the expansion screws. Later, it is necessary to tighten the rope connection with nuts or other fixings. The whole installation process is more troublesome, and the connection between the rope and the bolt is more troublesome in operation.

[0003] Therefore, it is necessary to make further improvements. [Utility Model Content]

[0004] The purpose of the utility model is to overcome the above problems. We provide an expansion screw with a connecting ring. The expansion screw has a connecting ring that can be used for rope connection, thereby solving the problem of difficulty in connecting the rope and the expansion screw.

[0005] To achieve the above purpose, we provide an expansion screw with a connecting ring, which includes a sleeve, a bolt, a nut and a lifting ring. The wall of the sleeve is provided with a plurality of slots, which extend upward along the bottom of the sleeve. The nut is arranged at the top of the sleeve. The bolt is inserted into the sleeve and is threadedly connected with the nut. The bottom of the bolt passes through the bottom of the sleeve and has an expansion head. The circular diameter of the expansion head is larger than the circular diameter of the inner surface of the sleeve. The top of the bolt is threadedly connected with the lifting ring.

[0006] In one or more embodiments, the lifting ring part includes a connecting cap and a lifting ring, a ring seat for connecting the lifting ring is provided on the top of the connecting cap, a hole for the lifting ring to pass through is opened on the ring seat, and the connecting cap has a connecting cavity threadedly connected to the top of the bolt.

[0007] In one or more embodiments, the depth of the connecting cavity is 8MM-15MM.

[0008] In one or more embodiments, the connecting cap and the ring seat are an integrally formed structure, and the connecting cap and the hanging ring are both made of stainless steel.

[0009] In one or more embodiments, the cross-sectional shape of the expansion head is circular or elliptical.

[0010] In one or more embodiments, an arc-shaped guiding surface is provided between the bottom surface and the inner side surface of the sleeve.

[0011] In one or more embodiments, a gasket is disposed between the nut and the sleeve.

[0012] Compared with the background technology, the utility model has the following technical effects: the expansion screw has a lifting eye portion, through which a rope can pass and then be wound and connected, so that the outdoor advertising banner can be better fixed, reducing the installation difficulty of the installation workers, and the rope is not easy to loosen after being wound and connected with the lifting eye.

Brief Description of the Drawings

[0013] Figure 1 It is a schematic diagram of an expansion screw with a connecting ring of the utility model;

[0014] Figure 2 It is a cross-sectional view of the sleeve of the utility model. [Specific implementation method]

[0015] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0016] Please see Figure 1-2 The present application provides an expansion screw with a connecting ring, which includes a sleeve 1, a bolt 2, a nut 3 and a lifting ring. The wall of the sleeve 1 is provided with a plurality of notches 4, and the plurality of notches divide the wall of the sleeve into a plurality of expansion parts 101. The notches extend upward along the bottom of the sleeve. The nut 3 is arranged at the top position of the sleeve 1. The bolt 2 is inserted into the sleeve 1 and is screwed with the nut 3. The bottom of the bolt passes through the bottom of the sleeve 1 and has an expansion head 5. The circular diameter of the expansion head is larger than the circular diameter of the inner surface of the sleeve 1. When the nut is turned, the bolt moves outward, the expansion head enters the sleeve and expands the sleeve to expand the expansion part outward. The top of the bolt 2 is screwed with the lifting ring, and the lifting ring is used for the rope to pass through, wrap and bind, so that the rope is better connected and fixed to the expansion screw.

[0017] Preferably, the lifting ring part includes a connecting cap 6 and a lifting ring 7. A ring seat 61 for connecting the lifting ring is provided on the top of the connecting cap. A hole for the lifting ring to pass through is opened on the ring seat. The lifting ring is passed through the hole and can swing relative to the axis of the hole. The connecting cap 6 has a connecting cavity screwed to the top of the bolt 2. The depth of the connecting cavity is 8MM-15MM, preferably 10MM, 12MM and 13MM, to ensure that the connecting cavity has a certain depth to connect with the bolt, to ensure the structural tightness after the connecting cap is connected to the bolt, and to ensure that the connecting cap is not easy to fall off the bolt.

[0018] The connecting cap 6 and the ring seat 61 are an integrally formed structure, and the connecting cap 6 and the hanging ring 7 are both made of stainless steel, so that the hanging ring part has the advantages of being waterproof and corrosion-resistant.

[0019] In order to make it relatively easy for the expansion head to enter the sleeve, the cross-sectional shape of the expansion head 5 is circular or elliptical. Furthermore, an arc-shaped guide surface 8 is provided between the bottom surface and the inner side surface of the sleeve 1. The arc-shaped guide surface cooperates with the elliptical or circular expansion head to make it easier for the expansion head to enter the sleeve, thereby expanding the expansion part 101.

[0020] A gasket 9 is provided between the nut 3 and the sleeve 1. The gasket is stressed to avoid direct contact between the nut and the sleeve, thereby preventing the top of the sleeve from being deformed due to stress.

[0021] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. An expansion screw with a connecting ring, characterized in that: The invention comprises a sleeve (1), a bolt (2), a nut (3) and a lifting ring. The wall of the sleeve (1) is provided with a plurality of notches (4), the notches extending upward along the bottom of the sleeve. The nut (3) is arranged at the top of the sleeve (1). The bolt (2) is inserted into the sleeve (1) and is screwed to the nut (3). The bottom of the bolt passes through the bottom of the sleeve (1) and has an expansion head (5). The circular diameter of the expansion head is larger than the circular diameter of the inner surface of the sleeve (1). The top of the bolt (2) is screwed to the lifting ring.

2. An expansion screw with a connecting ring according to claim 1, characterized in that: The lifting ring part comprises a connecting cap (6) and a lifting ring (7). A ring seat (61) for connecting the lifting ring is provided on the top of the connecting cap. A hole is provided on the ring seat for the lifting ring to pass through. The connecting cap (6) has a connecting cavity which is threadedly connected to the top of the bolt (2).

3. An expansion screw with a connecting ring according to claim 2, characterized in that: The depth of the connecting cavity is 8MM-15MM.

4. An expansion screw with a connecting ring according to claim 2 or 3, characterized in that: The connecting cap (6) and the ring seat (61) are an integrally formed structure, and the connecting cap (6) and the hanging ring (7) are both made of stainless steel.

5. The expansion screw with a connecting ring according to claim 1, characterized in that: The cross-sectional shape of the expansion head (5) is circular or elliptical.

6. An expansion screw with a connecting ring according to claim 1 or 5, characterized in that: An arc-shaped guide surface (8) is provided between the bottom surface and the inner side surface of the sleeve (1).

7. The expansion screw with a connecting ring according to claim 1, characterized in that: A gasket (9) is provided between the nut (3) and the sleeve (1).

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