Spiral connecting piece suitable for flat long hole

Abstract

A spiral connecting piece suitable for a flat and long hole comprises an upper pressing table (1), a hand screwing part (2) is arranged above the upper pressing table (1), a rod (3) is arranged below the upper pressing table (1), a spiral part (4) is spirally arranged on the outer side of the rod (3), and the upper portion of the spiral part (4) is wider than the lower portion of the spiral part (4); and a gap is reserved between the top of the spiral part (4) and the bottom of the upper pressing table (1). The spiral connecting piece can be integrally formed, and connection failure caused by losing of accessories is prevented. Moreover, the operation is simple, the lower part of the spiral part is directly inserted into the flat long hole and then is rotated, so that the diaphragm can be rotated between the upper pressing table and the spiral part from the bottom of the spiral part, and the diaphragm is not easy to fall off and loosen after being connected in place.

Description

Technical Field

[0001] This utility model relates to the field of hole connector technology, specifically a spiral connector suitable for flat and elongated holes. Background Technology

[0002] Geocells are three-dimensional mesh-like cell structures formed by welding multiple sheets together with high strength. Due to engineering requirements, some projects require perforations in the membrane sheets to connect connectors and further increase the connection strength.

[0003] The holes drilled on the diaphragm are typically elongated and flat. Existing connectors generally use a combination of bolts and nuts; the bolt is inserted from one end, and the nut is tightened from the other. However, this method...

[0004] On the one hand, there may be problems with loose connections;

[0005] On the other hand, there is also the problem of missing parts;

[0006] Tightening nuts also takes a relatively long time and is not very efficient. Utility Model Content

[0007] To address the technical problems existing in the background art, this utility model provides a spiral connector suitable for flat and elongated holes.

[0008] The technical solution of this utility model is as follows:

[0009] A spiral connector suitable for flat elongated holes includes an upper pressure table, a hand-tightening part above the upper pressure table, a rod below the upper pressure table, and a spiral part spirally provided on the outer side of the rod, wherein the upper width of the spiral part is greater than the lower width.

[0010] A gap is left between the top of the spiral section and the bottom of the upper pressure table.

[0011] The diameter of the rod matches the size of the flat elongated hole to be connected. When in use, insert the lower end of the spiral part into the flat elongated hole on the geocell membrane. The membrane is locked between the adjacent threads of the spiral part. Then, turn the hand-tightening part to make the spiral part move downwards until the flat elongated hole of the membrane reaches the gap between the top of the spiral part and the bottom of the upper pressure table, so that the connector and the flat elongated hole are connected in place.

[0012] The spiral section is a spiral structure extending from the outside of the rod, designed to clamp the sheet and cause relative displacement between the two under the guidance of the spiral line.

[0013] Therefore, the spiral section can have one spiral or multiple spirals. Using only one spiral simplifies the structure.

[0014] When the spiral section has two spiral lines, the two spiral lines are arranged alternately. This ensures the effect while saving materials.

[0015] As a preferred option, the outer ring of the spiral section has a rounded transition to prevent sharp burrs from causing injury.

[0016] Preferably, the maximum diameter of the spiral section should not be too large, and should be smaller than the length of the flat elongated hole. The projection of the spiral section toward the upper pressure table should be located inside the upper pressure table.

[0017] The bottom of the spiral section is flat to prevent injury from protruding parts.

[0018] Regarding the design of the rod, the diameter of the upper part of the rod is larger than the diameter of the lower part, which can better fit the structure of the spiral part, which is larger at the top and smaller at the bottom.

[0019] In one embodiment, the upper pressure platform is a circular platform, and the rod is connected to the center of the upper pressure platform.

[0020] The hand-tightening part has a rectangular structure and is positioned at the center above the upper pressure table. All four corners of the hand-tightening part are chamfered.

[0021] In this way, none of the exposed parts of the connector have obvious sharp protrusions, making it easier for people to use by hand.

[0022] As a preferred embodiment, the connector of this utility model is an integrally molded structure, which is simple to manufacture.

[0023] With the above design, this utility model is suitable for spiral connectors with flat, elongated holes. It is equipped with an upper pressure plate and a spiral part to connect the sheet material, and can be integrally molded to prevent connection failure due to missing parts. Moreover, it is easy to operate. Simply insert the lower part of the spiral part into the flat, elongated hole and rotate it to make the diaphragm rotate from the bottom of the spiral part to between the upper pressure plate and the spiral part. Once connected, it is not easy to fall off or loosen. Attached Figure Description

[0024] In the attached diagram:

[0025] Figure 1 This is a three-dimensional view of a spiral connector;

[0026] Figure 2 This is a schematic diagram of the upper part of the present invention after it is connected to the flat elongated hole;

[0027] Figure 3 This is a schematic diagram of the lower part of the present invention after being connected to the flat elongated hole;

[0028] The components represented by the various reference numerals in the diagram are:

[0029] 1. Upper pressure table; 2. Hand-tightening part; 3. Rod; 4. Spiral part; 5. Flat elongated hole. Detailed Implementation

[0030] See Figure 1 This embodiment provides a spiral connector suitable for flat elongated holes, including an upper pressure table 1, a hand-tightening part 2 above the upper pressure table 1, a rod 3 below the upper pressure table 1, and a spiral part 4 spirally provided on the outer side of the rod 3, wherein the upper width of the spiral part 4 is greater than the lower width.

[0031] A gap is left between the top of the spiral section 4 and the bottom of the upper pressure platform 1. Taking the use of geocells as an example, the size of this gap is the same as the width of the welded edge of the geocell. A flat, elongated hole 5 is provided on the welded edge, see [reference needed]. Figure 2 and Figure 3 As shown.

[0032] The diameter of rod 3 matches the width of the flat elongated hole 5 to be connected. The maximum width of the upper part of the spiral part 4 is smaller than the length of the flat elongated hole 5. The pitch of the spiral part 4 is slightly larger than the depth of the flat elongated hole 5. The number of turns of the spiral part 4 should be 2-3 turns to allow for quick rotation into place.

[0033] In use, insert the lower end of the spiral part 4 into the flat elongated hole 5 on the geocell membrane. The membrane is locked between the adjacent threads of the spiral part 4. Then, turn the hand-tightening part 2 to make the spiral part 4 spiral downward until the flat elongated hole 5 of the membrane reaches the gap between the top of the spiral part 4 and the bottom of the upper pressure table 1, so that the connector and the flat elongated hole 5 are connected in place.

[0034] The spiral part 4 is a spiral structure extending from the outside of the rod 3. Its purpose is to clamp the sheet and cause relative displacement between the two under the guidance of the spiral line.

[0035] Therefore, the spiral section 4 can have one spiral line or multiple spiral lines. Using only one spiral line simplifies the structure. This embodiment... Figure 1 This is the style provided.

[0036] When the spiral section 4 has two spiral lines, the two spiral lines are arranged alternately. This ensures the effect while saving materials.

[0037] As a preferred option, the outer ring of the spiral part 4 has a rounded transition to prevent sharp burrs from injuring people.

[0038] Preferably, the maximum diameter of the spiral part 4 should not be too large, and should be smaller than the length of the flat elongated hole 5. The projection of the spiral part 4 toward the upper pressure table 1 is designed to be located inside the upper pressure table 1.

[0039] The bottom of the spiral part 4 is flat to prevent injury from protruding parts.

[0040] Regarding the design of rod 3, the upper diameter of rod 3 is larger than the lower diameter, which can better adapt to the structural shape of the spiral part 4, which is larger at the top and smaller at the bottom.

[0041] In this embodiment, the upper pressure platform 1 is a circular platform, and the rod 3 is connected to the center of the upper pressure platform 1.

[0042] The hand-tightening part 2 is a rectangular structure, positioned at the center above the upper pressure table 1. All four corners of the hand-tightening part 2 are chamfered.

[0043] To facilitate the hand-tightening part 2, the length of the hand-tightening part 2 can be designed to be the same as the diameter of the upper pressure table 1, so as to increase the contact area with the human hand.

[0044] With the above design, all exposed parts of the connectors have no obvious sharp protrusions, making them easier for manual use.

[0045] As a preferred embodiment, the connector of this utility model is an integrally molded structure, which is simple to manufacture.

Claims

1. A spiral connector suitable for flat, elongated holes, characterized in that, It includes an upper pressure table (1), a hand-tightening part (2) is provided above the upper pressure table (1), and a rod (3) is provided below. A spiral part (4) is spirally provided on the outer side of the rod (3), and the upper width of the spiral part (4) is greater than the lower width. A gap is left between the top of the spiral part (4) and the bottom of the upper pressure table (1).

2. The spiral connector according to claim 1, characterized in that, The spiral part (4) has a spiral line.

3. A spiral connector according to claim 1, characterized in that, The spiral part (4) has two spiral lines, which are arranged alternately.

4. A spiral connector according to claim 1, characterized in that, The outer ring of the spiral part (4) has a circular arc transition.

5. A spiral connector according to claim 1, characterized in that, The projection of the spiral part (4) toward the upper pressure table (1) is located inside the upper pressure table (1).

6. A spiral connector according to claim 1, characterized in that, The bottom of the spiral part (4) has a planar structure.

7. A spiral connector according to any one of claims 1-6, characterized in that, The diameter of the upper part of the rod (3) is greater than the diameter of the lower part.

8. A spiral connector according to any one of claims 1-6, characterized in that, The upper pressure platform (1) is a circular platform, and the rod (3) is connected to the center of the upper pressure platform (1).

9. A spiral connector according to claim 1, characterized in that, The hand-twisting part (2) is a rectangular structure and is located at the center above the upper pressure table (1).

10. A spiral connector according to claim 1, characterized in that, The connector is a one-piece molded structure.

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