Slip type anti-falling nut

Abstract

The utility model relates to the technical field of fasteners, in particular to a slip type anti-falling nut. The slip type anti-falling nut comprises a first slip and a second slip, one end of the first slip is hinged to one end of the second slip through a hinged shaft, internal thread sections are arranged on the first slip and the second slip respectively, and the internal thread sections on the first slip and the second slip belong to different parts of the same threaded hole. And a hole formed by closing the other ends of the first slip and the second slip is smaller than the threaded hole. According to the utility model, the existing nut is improved. Specifically, the first slip, the second slip and the supporting tile are utilized to form the slip type anti-loosening nut, a hole defined after the first slip and the second slip are closed is smaller than a threaded hole, so that clamping force on an adaptive screw can be generated, the anti-loosening purpose is achieved, the locking effect of the slip type anti-loosening nut is more direct and powerful, and the hidden danger of loosening is eradicated.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a slip-type anti-slip nut. Background Art

[0002] Fasteners are mechanical parts used for fastening connections, with nuts being the most widely used. Nuts, which fasten bolts together through internal threads, are primarily circular in shape, with internal threads matching the bolt's dimensions. Nuts, through the interplay of these threads and the bolt, can be screwed in and out to achieve pre-tightening and loosening.

[0003] Existing nut structures typically rotate the nut along the bolt's axial direction, requiring each thread to reach the desired position. This can take a long time to complete nut movement for longer bolts. Nuts left in the field can become difficult to tighten due to corrosion and rust, making them time-consuming and labor-intensive. Nuts and bolts are typically used in conjunction, which can create a risk of loosening for nuts on vibrating equipment.

[0004] A Chinese utility model patent with authorization announcement number CN217652318U and authorization announcement date of October 25, 2022 discloses a split nut for scaffolding screws, which includes two split parts and a detachable connection mechanism. The detachable connection mechanism includes a locking nut, a screw, and a connecting component with a positioning groove. The two split parts are hinged to each other and can rotate around the hinge axis to open and close. The detachable connection mechanism is connected between the two split parts. The screw is hingedly mounted on one of the split parts and can be inserted into and removed from the positioning groove provided on the other split part around the hinge axis. The locking nut is threadedly connected to the screw inserted into the positioning groove, forcing the two split parts to remain in a closed state.

[0005] The aforementioned nut has the advantages of a simple structure, easy installation and removal, labor savings, and improved construction efficiency. However, it uses a screw inserted into a positioning groove to lock the nut together, closing the two separate parts. The threaded hole formed by the closed two parts is a standard threaded hole corresponding to the matching screw. After tightening, the nut thread is self-locking, which does not prevent loosening or falling off, resulting in insufficient locking effect. Utility Model Content

[0006] The purpose of the utility model is to provide a slip-type anti-slip nut to solve the problem of poor locking effect of existing nuts.

[0007] The slip-type anti-slip nut of the utility model adopts the following technical solutions:

[0008] A slip-type anti-slip nut includes a first slip and a second slip. One end of the first slip and the second slip are hinged by a hinge shaft. The first slip and the second slip are respectively provided with internal thread sections, and the internal thread sections on the first slip and the second slip belong to different parts of the same threaded hole. The hole enclosed by the other ends of the first slip and the second slip when closed is smaller than the threaded hole.

[0009] Beneficial Effects: The present invention improves upon existing nuts. Specifically, a slip-type anti-loosening nut is formed by utilizing a first slip, a second slip, and a support shoe. Because the hole formed by the closed first and second slips is smaller than the threaded hole, a clamping force can be generated on the mating screw, thereby preventing it from loosening. The present invention provides a more direct and powerful locking effect, eliminating the risk of loosening.

[0010] Furthermore, the ends of the first slip and the second slip away from the hinge shaft are connected by a locking screw.

[0011] Furthermore, one of the first slip and the second slip is provided with a fixing threaded hole matched with the locking screw, and the other is provided with a light hole matched with the locking screw.

[0012] Furthermore, at least one of the first slip and the second slip is provided with an anti-loosening top screw.

[0013] Furthermore, the first slip and the second slip are respectively provided with a support tile at one end, and the anti-loosening top screw is provided on the support tile on the corresponding slip.

[0014] Furthermore, the wall thickness of the support shoe is smaller than that of the corresponding slip shoe, so that a step is formed between the outer portion and the corresponding slip shoe.

[0015] Furthermore, the inner end of the anti-loosening screw extends in a direction opposite to the loosening direction of the internal thread segments on the first slip and the second slip.

[0016] Furthermore, at least one of the first slip and the second slip is provided with an anti-loosening screw, and the anti-loosening screw and the locking screw have heads suitable for the same type of wrench tool.

[0017] Furthermore, the heads are all polygonal heads.

[0018] Furthermore, the first slip and the second slip are both arc-shaped. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of an embodiment of the slip-type anti-slip nut of the present utility model;

[0020] Figure 2This is a schematic diagram of the expanded structure of an embodiment of the slip-type anti-slip nut of the utility model.

[0021] Numbers in the figure: 1, slip; 11, hinge shaft; 12, pin shaft hole; 13, locking screw; 14, internal thread section; 15, fixed threaded hole; 16, smooth hole; 2, support shoe; 21, threaded hole; 22, anti-loosening top screw. DETAILED DESCRIPTION

[0022] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0023] Specific implementation of the slip-type anti-slip nut of the utility model:

[0024] The prior art discloses a split nut for scaffolding screw rods, which is hinged to each other by two split parts, and a detachable connecting mechanism is connected between the two split parts, so as to achieve the purpose of easy installation and disassembly, saving labor, and improving construction efficiency. However, the device still has the problem of insufficient locking effect. The present utility model proposes a solution to the shortcomings of the prior art. The core idea of ​​the solution is to make the hole enclosed by the first cava and the second cava smaller than the threaded hole, so that the matching screw can be clamped to achieve the locking purpose. In addition, as a further optimization, the bottom support tile of the cava is also provided with an anti-loosening top screw, which further enhances the anti-loosening and anti-slip effect.

[0025] Based on the above concept, Figure 1 、 Figure 2 As shown, the cava type anti-slip nut of the utility model includes a cava 1 and a support washer 2. The cava 1 is connected by a hinge shaft 11 to form an opening and closing structure, and is locked by a locking screw 13. The support washer 2 is located at the bottom of the cava 1 and is connected to the cava 1. A threaded hole 21 is provided on the support washer 2 for connecting an anti-loosening top screw 22.

[0026] Among the aforementioned components, the slip 1 is divided into a first slip and a second slip, each internally provided with an internally threaded section 14. The internally threaded sections 14 on the first and second slips are different parts of the same threaded hole. When the first and second slips are connected by a locking screw 13, the resulting closed hole is smaller than the threaded hole to which the internally threaded sections 14 of the first and second slips belong, thereby achieving a locking effect. The slip 1 is preferably an arc-shaped slip. The slip 1 has a pin hole 12, and a hinge 11 connects the corresponding pin holes 12 on the two slips 1. The slip 1 is provided with a fixed threaded hole 15 and a smooth hole 16, which are connected by a locking screw 13. In this embodiment, the hinge 11 is cylindrical, and the pin hole 12 cooperates with the hinge 11 to form a connection structure, which facilitates opening and closing. In this embodiment, the anti-loosening screw 22 is indirectly attached to the support shoe 2, but in other embodiments, it can also be directly attached to the slip to prevent loosening and falling off. The inner end of the locking screw 22 extends in the opposite direction of the loosening direction of the internal threaded section on the slip 1, further enhancing the locking effect. In this embodiment, the locking screw 22 and the locking screw 13 have heads suitable for the same type of wrench tool, both with a hexagonal structure. In other embodiments, a square structure can also be adopted. In this embodiment, the locking screw 13 is used to connect the fixed threaded hole 15 and the smooth hole 16. In other embodiments, a stud stud can also be used for connection.

[0027] like Figure 1 As shown, the support tile 2 is connected to the slip 1. The wall thickness of the support tile 2 is smaller than that of the slip 1, and a step is formed between the outer surface and the slip 1. This structure can save materials. A threaded hole 21 is provided on the support tile 2 for connecting an anti-loosening screw 22.

[0028] In this embodiment, the support shoe 2 is connected to the slip 1 to form a slip-type anti-slip nut. However, in other embodiments, the support shoe can be replaced by a washer placed between the slip and the object to protect the surface of the object and prevent damage caused by direct contact between the threads.

[0029] The method of using the slip-type anti-slip nut of the utility model is as follows:

[0030] Close the two opened C-shaped ring structure slips 1 on the screw through the hinge shaft 11, so that the internal thread section 14 engages with the thread on the screw, slightly tighten the locking screw 13, rotate the slip 1, so that the bottom of the support shoe 2 presses the workpiece, tighten the locking screw 13, so that the internal thread section 14 locks the thread on the screw, tighten the anti-loosening screw 22, and lock the screw; when removing, loosen the anti-loosening screw 22, then loosen the locking screw 13, remove the two slips 1, and the disassembly is completed.

Claims

1. A slip-type anti-drop nut, comprising a first slip and a second slip, one end of the first slip and the second slip being hinged by a hinge shaft, the first slip and the second slip being respectively provided with an internal threaded section, and the internal threaded sections on the first slip and the second slip belonging to different parts of the same threaded hole, characterized in that: The hole formed by closing the other ends of the first slip and the second slip is smaller than the threaded hole.

2. The slip-type anti-slip nut according to claim 1, characterized in that: The first slip and the second slip are connected at one end away from the hinge shaft via a locking screw.

3. The slip-type anti-slip nut according to claim 2, characterized in that: One of the first slip and the second slip is provided with a fixing threaded hole matched with the locking screw, and the other is provided with a light hole matched with the locking screw.

4. The slip-type anti-slip nut according to claim 1, characterized in that: At least one of the first slip and the second slip is provided with an anti-loosening top screw.

5. The slip-type anti-slip nut according to claim 4, characterized in that: The first slip and the second slip are respectively provided with a supporting tile at one end, and the anti-loosening top screw is provided on the supporting tile on the corresponding slip.

6. The slip-type anti-slip nut according to claim 5, characterized in that: The wall thickness of the support shoe is smaller than that of the corresponding slip shoe, so a step is formed between the outer portion and the corresponding slip shoe.

7. The slip-type anti-slip nut according to any one of claims 4 to 6, characterized in that: The inner end of the anti-loosening screw extends in a direction opposite to the loosening direction of the internal thread segments on the first slip and the second slip.

8. The slip-type anti-slip nut according to claim 2 or 3, characterized in that: At least one of the first slip and the second slip is provided with an anti-loosening screw, and the anti-loosening screw and the locking screw have heads suitable for the same type of wrench tool.

9. The slip-type anti-slip nut according to claim 8, characterized in that: The heads are all polygonal heads.

10. The slip-type anti-slip nut according to claim 1, characterized in that: The first slip and the second slip are both arc-shaped.

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