Fastener with anti-skid mechanism

Abstract

The utility model relates to a fastener with an anti-skidding mechanism, which comprises a screw rod and an anti-loosening sleeve, the anti-loosening sleeve comprises a threaded sleeve and an expansion sleeve, the threaded sleeve is in threaded connection with the outer side of the screw rod, the expansion sleeve is sleeved on the outer side of the screw rod and is fixedly connected with the lower end of the threaded sleeve, and a chemical anchor bolt is arranged in the anti-loosening sleeve. The expansion sleeve is provided with a circulation mechanism for overflowing of the chemical anchor bolt, in the structure, the expansion sleeve is used for tightly holding the screw rod and clamping the screw rod in the mounting hole, the firmness degree of screw rod connection is further increased, meanwhile, the threaded sleeve and the expansion sleeve can prevent the screw rod from inclining, and the service life of the screw rod is prolonged. In addition, the circulating mechanism can enable the chemical anchor bolt to flow into the gap between the expansion sleeve and the mounting hole, so that the chemical anchor bolt can further fix the screw rod in the expansion sleeve and also can fix the screw rod and the expansion sleeve in the mounting hole.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a fastener with an anti-slip mechanism. Background Technology

[0002] Fasteners are connecting fittings used to connect accessories or structures, and their main function is to achieve a secure connection between accessories. These fittings have advantages such as stable performance, ease of operation, and portability. However, existing fasteners have some shortcomings in use, such as relatively simple structural designs, which make them prone to loosening and detachment during use, thus affecting their stability and safety. Utility Model Content

[0003] This invention proposes a hydraulically controlled directional valve, which solves the aforementioned problems existing in the use of the prior art.

[0004] The technical solution of this utility model is implemented as follows: a fastener with an anti-slip mechanism includes a screw and an anti-loosening sleeve, characterized in that: the anti-loosening sleeve includes a threaded sleeve and an expansion sleeve, the threaded sleeve is threadedly connected to the outside of the screw, the expansion sleeve is sleeved on the outside of the screw and fixedly connected to the lower end of the threaded sleeve, a chemical anchor is provided inside the anti-loosening sleeve, and a flow mechanism for the chemical anchor to overflow is provided on the expansion sleeve.

[0005] The present invention is further configured such that: the circulation mechanism includes a deformation groove formed on the expansion sleeve; the expansion sleeve includes a base plate and a plurality of connecting sidewalls spaced circumferentially at the upper end of the base plate; the upper and lower ends of the connecting sidewalls are respectively fixedly connected to the lower end of the threaded sleeve and the upper end of the base plate; and a deformation groove is formed between each pair of adjacent connecting sidewalls.

[0006] The present invention is further configured such that: a clamping mechanism is provided between the expansion sleeve and the screw, and a first fixing mechanism is provided on the outer side wall of the expansion sleeve.

[0007] The present invention is further configured such that: the clamping mechanism includes a protrusion, the protrusion being fixedly disposed on the end face of the connecting side wall facing the screw.

[0008] The present invention is further configured such that: the first fixing mechanism includes a clamping plate, the cross-section of the clamping plate is gradually tapered from the middle to the upper and lower ends, the side wall of the clamping plate facing away from the protrusion is an arc-shaped wall, and the upper end surface of the clamping plate is a horizontal plane.

[0009] The present invention is further configured such that a second fixing mechanism is provided on the outer wall of the threaded sleeve.

[0010] The present invention is further configured such that: the second fixing mechanism includes a retaining bar, one end of which is fixedly connected to the outer wall of the threaded sleeve, and the other end of which extends upward and is inclined away from the threaded sleeve.

[0011] In summary, the beneficial effects of this utility model are as follows:

[0012] 1. In this structure, the expansion sleeve is used to hold the screw and lock it in the mounting hole, further increasing the firmness of the screw connection. At the same time, the threaded sleeve and the expansion sleeve can also prevent the screw from being bent. In addition, the flow mechanism can allow the chemical anchor to flow into the gap between the expansion sleeve and the mounting hole, so that the chemical anchor can not only further fix the screw in the expansion sleeve, but also fix both the screw and the expansion sleeve in the mounting hole.

[0013] 2. The deformation groove facilitates the retraction of the expansion sleeve during its entry into the installation hole, and also makes it easier for the screw to break through the reinforcing cylinder, allowing the chemical anchor to overflow from the deformation groove. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0017] The following are labeled in the diagram: 1. Screw, 21. Threaded sleeve, 211. Clamping strip, 22. Expansion sleeve, 221. Deformation groove, 222. Base plate, 223. Connecting side wall, 224. Protrusion, 225. Clamping plate, 3. Chemical anchor bolt, 31. Reagent. Detailed Implementation

[0018] The following will refer to the appendix in the embodiments of this utility model. Figure 1-2 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] Example:

[0020] like Figures 1 to 2 As shown, this utility model discloses a fastener with an anti-slip mechanism, including a screw 1 and an anti-loosening sleeve. The anti-loosening sleeve includes a threaded sleeve 21 and an expansion sleeve 22. The threaded sleeve 21 is threaded to the outside of the screw 1, and the expansion sleeve 22 is sleeved on the outside of the screw 1 and fixedly connected to the lower end of the threaded sleeve 21. In this structure, a chemical anchor 3 is provided inside the anti-loosening sleeve, and the expansion sleeve 22 is provided with a flow mechanism for the chemical anchor 3 to overflow.

[0021] Furthermore, the circulation mechanism includes a deformation groove 221 formed on the expansion sleeve 22. Specifically, the expansion sleeve 22 includes a base plate 222 and a plurality of connecting sidewalls 223 arranged circumferentially at the upper end of the base plate 222. The upper and lower ends of the connecting sidewalls 223 are fixedly connected to the lower end of the threaded sleeve 21 and the upper end of the base plate 222, respectively. At the same time, in this structure, a deformation groove 221 is formed between each pair of adjacent connecting sidewalls 223.

[0022] Furthermore, a clamping mechanism is provided between the expansion sleeve 22 and the screw 1, and a first fixing mechanism is provided on the outer wall of the expansion sleeve 22.

[0023] The clamping mechanism specifically includes a protrusion 224, which is fixedly disposed on the end face of the connecting side wall 223 facing the screw 1.

[0024] The first fixing mechanism specifically includes a clamping plate 225. The cross-section of the clamping plate 225 is gradually tapered from the middle to the upper and lower ends. The side wall of the clamping plate 225 facing away from the protrusion 224 is an arc-shaped wall. In addition, the upper surface of the clamping plate 225 is a horizontal plane.

[0025] A second fixing mechanism is provided on the outer wall of the threaded sleeve 21. The second fixing mechanism includes a retaining strip 211. One end of the retaining strip 211 is fixedly connected to the outer wall of the threaded sleeve 21, and the other end of the retaining strip 211 extends upward and is inclined away from the threaded sleeve 21.

[0026] The working principle of the above structure is as follows: When the screw 1 is installed, the chemical anchor 3 is first placed into the anti-loosening sleeve, then the entire anti-loosening sleeve is placed into the mounting hole, and then the screw 1 is installed into the anti-loosening sleeve. During the installation process, the screw 1 will first push the chemical anchor 3 into the expansion sleeve 22. When the chemical anchor 3 can no longer move, the screw 1 will break the chemical anchor 3 during rotation, causing the reagent 31 in the chemical anchor 3 to overflow from the deformation groove 221 on the anti-loosening sleeve to the space between the anti-loosening sleeve and the mounting hole, thereby forming a further firm connection. In addition, the advantage of this design is that the appearance of the deformation groove 221 allows the reagent 31 to flow into the deformation groove 221 as much as possible, which can prevent the reagent 31 from flowing out of the mounting hole and affecting the appearance.

[0027] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fastener with an anti-slip mechanism, comprising a screw (1) and an anti-loosening sleeve, characterized in that: The anti-loosening sleeve includes a threaded sleeve (21) and an expansion sleeve (22). The threaded sleeve (21) is threaded to the outside of the screw (1). The expansion sleeve (22) is sleeved on the outside of the screw (1) and fixedly connected to the lower end of the threaded sleeve (21). A chemical anchor (3) is provided inside the anti-loosening sleeve. A flow mechanism for the chemical anchor (3) to overflow is provided on the expansion sleeve (22).

2. A fastener with an anti-slip mechanism according to claim 1, characterized in that: The circulation mechanism includes a deformation groove (221) formed on the expansion sleeve (22). The expansion sleeve (22) includes a base plate (222) and a plurality of connecting sidewalls (223) arranged circumferentially at intervals on the upper end of the base plate (222). The upper and lower ends of the connecting sidewalls (223) are fixedly connected to the lower end of the threaded sleeve (21) and the upper end of the base plate (222), respectively. A deformation groove (221) is formed between each pair of adjacent connecting sidewalls (223).

3. A fastener with an anti-slip mechanism according to claim 2, characterized in that: A clamping mechanism is provided between the expansion sleeve (22) and the screw (1), and a first fixing mechanism is provided on the outer side wall of the expansion sleeve (22).

4. A fastener with an anti-slip mechanism according to claim 3, characterized in that: The clamping mechanism includes a protrusion (224), which is fixedly disposed on the end face of the connecting sidewall (223) facing the screw (1).

5. A fastener with an anti-slip mechanism according to claim 4, characterized in that: The first fixing mechanism includes a clamping plate (225), the cross-section of which is gradually narrowed from the middle to the upper and lower ends, the side wall of the clamping plate (225) facing away from the protrusion (224) is an arc-shaped wall, and the upper surface of the clamping plate (225) is a horizontal surface.

6. A fastener with an anti-slip mechanism according to claim 5, characterized in that: A second fixing mechanism is provided on the outer wall of the threaded sleeve (21).

7. A fastener with an anti-slip mechanism according to claim 6, characterized in that: The second fixing mechanism includes a retaining bar (211), one end of which is fixedly connected to the outer wall of the threaded sleeve (21), and the other end of which extends upward and is inclined away from the threaded sleeve (21).

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