Fastener with anti-skid mechanism

Abstract

The utility model relates to a fastener, belongs to the technical field of fasteners, and particularly relates to a fastener with an anti-skidding mechanism, which comprises a screw rod and further comprises an anti-skidding mechanism, the two grooves are formed in the side wall of the screw rod, first sawteeth are arranged on the side wall faces, close to each other, of the interiors of the two grooves, an annular plate is arranged on the side wall of the screw rod, two mounting blocks are fixedly mounted on the wall face of the bottom end of the annular plate, and clamping strips are arranged on the side wall faces, close to each other, of the two mounting blocks; second sawteeth are arranged on the wall faces of the sides, close to each other, of the two clamping strips. After the nut is tightened and fixed, the clamping strip penetrates through the interior of the groove, the first sawteeth are meshed with the second sawteeth to enable the first sawteeth to fix the clamping strip, so that the annular plate is fixed, the nut is prevented from sliding off from the screw rod in the subsequent use process, the anti-loosening effect is good, the practicability of the device is improved, and the practicability of the device is improved. The problem that an existing fastener with an anti-skid mechanism is low in practicability is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of fasteners, in particular to a fastener with an anti-slip mechanism. Background Art

[0002] Fasteners are a general term for a type of mechanical parts used to fasten two or more parts together into a whole. They are the most widely used mechanical basic parts. Existing fasteners are prone to loosening and slipping during use, and different application fields will also cause different degrees of loss, and in severe cases, will cause major accidents.

[0003] The Chinese patent with publication number CN210484348U discloses a fastener with an anti-slip structure, including a bolt head, a screw rod and a nut. A first washer is sleeved on the lower outer side of the bolt head, and the first washer is glued to the bolt head. The screw rod is integrally connected to the lower middle part of the bolt head, and the outer wall of the screw rod is provided with an external thread. A groove is provided on the inner side of the middle part of the screw rod, and a screw head is integrally fixed to the bottom of the screw rod. The nut is screwed and installed on the outer side of the screw rod, and a second washer is pasted on the upper part of the nut. The outer side of the nut is fixed with anti-slip grooves, and a sleeve is welded below the nut. A positioning hole is penetrated in the middle of the sleeve, and an internal thread is provided on the inner wall of the sleeve. A positioning rod is installed inside the positioning hole. The fastener with an anti-slip structure facilitates the use of the positioning rod to move and limit the nut and the rod sleeve, so as to avoid the sliding or rotation of the nut after tightening to cause looseness and affect the tightening degree, and play an anti-slip role.

[0004] The above technical solution is to arrange the annular sleeve on the outside of the screw rod, and the four groups of positioning holes are convenient for docking with the groove positions, thereby facilitating the clamping installation of the positioning rod and facilitating the use of the positioning rod to limit the movement of the nut and the rod sleeve. However, the above existing technical solution does not take into account the thickness of the connecting piece when the fastener is installed. When the connecting piece is fixed, the tightening position of the nut is different. The setting of the groove cannot guarantee that it is suitable for other equipment. The anti-loosening effect is poor, and the practicability of the device is low. Utility Model Content

[0005] In order to solve the above technical problems, the utility model proposes a fastener with an anti-slip mechanism. When the nut is tightened and fixed, the clamping strip passes through the inside of the groove, and the first serration engages with the second serration so that the first serration fixes the clamping strip, thereby fixing the annular plate to prevent the nut from slipping off the screw during subsequent use. The anti-loosening effect is good, which improves the practicability of the device.

[0006] The technical solution to achieve the purpose of the utility model is: a fastener with an anti-slip mechanism, including a screw, a bolt head is fixedly installed on the bottom wall of the screw, a connecting piece is arranged on the side wall of the screw, and a threaded hole is opened on the surface of the connecting piece, and also includes;

[0007] Two grooves are provided on the side wall of the screw, and the inner side wall surfaces of the two grooves adjacent to each other are provided with a first serration, and the side wall of the screw is provided with a nut, and the nut is spirally installed on the side wall of the screw, and the side wall of the screw is provided with an annular plate, and the annular plate is located below the nut, and two mounting blocks are fixedly installed on the bottom end wall of the annular plate, and the side wall surfaces of the two mounting blocks adjacent to each other are provided with a clamping strip, and the side wall surfaces of the two clamping strips adjacent to each other are provided with a second serration.

[0008] In some embodiments, the two grooves are symmetrical with respect to the central axis of the screw.

[0009] In some embodiments, the clamping strip is made of flexible material, and the width of the clamping strip is equal to the width of the groove.

[0010] In some embodiments, the opening direction of the first sawtooth is inclined upward, the opening direction of the second sawtooth is inclined downward, and the second sawtooth corresponds to the first sawtooth.

[0011] In some embodiments, a gasket is sleeved on the side wall of the screw rod, and the gasket is located between the connecting piece and the nut.

[0012] Compared with the prior art, the utility model has the following significant advantages:

[0013] First, the utility model can first pass the screw rod through the threaded hole of the connecting piece, and then screw and install the nut. When the nut is tightened and fixed, the clamping strip is passed through the inside of the groove. As the annular plate continuously approaches the nut, the clamping strip continuously meshes with the first serration inside the groove until the top wall surface of the mounting block contacts the top wall surface of the nut. At this time, the first serration meshes with the second serration so that the first serration fixes the clamping strip, thereby fixing the annular plate, preventing the nut from slipping off the screw rod during subsequent use. The anti-loosening effect is good, which improves the practicality of the device and solves the problem of low practicality of existing fasteners with anti-slip mechanisms.

[0014] Secondly, the utility model can improve the tightness and stability of fastening by setting the gasket, and can also avoid wear on the contact surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1This is a schematic diagram of the overall structure of a fastener with an anti-slip mechanism of the utility model;

[0017] Figure 2 It is an exploded schematic diagram of a fastener with an anti-slip mechanism of the utility model;

[0018] Figure 3 The utility model is a schematic diagram of a clamping strip structure of a fastener with an anti-slip mechanism.

[0019] Description of reference numerals:

[0020] 1. Screw rod; 11. Groove; 111. First sawtooth; 2. Bolt head; 3. Connector; 4. Nut; 5. Ring plate; 6. Mounting block; 7. Clip strip; 71. Second sawtooth; 8. Gasket. DETAILED DESCRIPTION

[0021] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides a fastener with an anti-slip mechanism through improvement. The technical solution of the utility model is:

[0023] like Figure 1 - Figure 3As shown, a fastener with an anti-slip mechanism comprises a screw rod 1, a bolt head 2 is fixedly mounted on the bottom end wall of the screw rod 1, a connecting piece 3 is arranged on the side wall of the screw rod 1, a threaded hole is arranged on the surface of the connecting piece 3, and two grooves 11 are arranged; the two grooves 11 are arranged on the side wall of the screw rod 1, the two grooves 11 are symmetrical about the central axis of the screw rod 1, the side walls of the two grooves 11 that are close to each other are each provided with a first serration 111, the opening direction of the first serration 111 is inclined upward, a nut 4 is arranged on the side wall of the screw rod 1, the nut 4 is spirally mounted on the side wall of the screw rod 1, an annular plate 5 is arranged on the side wall of the screw rod 1, the annular plate 5 is located below the nut 4, two mounting blocks 6 are fixedly mounted on the bottom end wall of the annular plate 5, a clamping strip 7 is arranged on the side wall surfaces that are close to each other of the two mounting blocks 6, the clamping strip 7 is made of flexible material, and the length of the annular plate 5 can be sheared according to the position of the nut 4, thereby improving the application range of the device, and the width of the clamping strip 7 The width of the groove 11 is equal to that of the two clamping strips 7, and the side wall surface where the two clamping strips 7 are close to each other is provided with a second serration 71, and the opening direction of the second serration 71 is inclined downward, and the second serration 71 corresponds to the first serration 111. The setting of the second serration 71 and the first serration 111 facilitates the fixing of the nut 4; first, the screw rod 1 can be passed through the threaded hole of the connecting member 3, and then the nut 4 is screwed and installed. When the nut 4 is tightened and fixed, the clamping strip 7 passes through the inside of the groove 11. As the annular plate 5 continues to approach the nut 4, the clamping strip 7 continuously meshes with the first serration 111 inside the groove 11 until the top wall surface of the mounting block 6 contacts the top wall surface of the nut 4. At this time, the first serration 111 meshes with the second serration 71 so that the first serration 111 fixes the clamping strip 7, thereby fixing the annular plate 5, preventing the nut 4 from slipping off the screw rod 1 during subsequent use, and having a good anti-loosening effect, thereby improving the practicality of the device.

[0024] like Figure 1 and Figure 2 As shown, in one embodiment, a gasket 8 is sleeved on the side wall of the screw rod 1, and the gasket 8 is located between the connecting piece 3 and the nut 4. The setting of the gasket 8 can improve the tightness and stability of the fastening, and at the same time can avoid wear on the contact surface.

[0025] The specific working method is: first, the screw rod 1 can be passed through the threaded hole of the connecting piece 3, and then the gasket 8 is placed, and then the nut 4 is screwed and installed. When the nut 4 is tightened and fixed, the clamping strip 7 is passed through the inside of the groove 11. As the annular plate 5 continues to approach the nut 4, the clamping strip 7 continuously engages with the first serration 111 inside the groove 11 until the top wall surface of the mounting block 6 contacts the top wall surface of the nut 4. At this time, the first serration 111 is engaged with the second serration 71 so that the first serration 111 fixes the clamping strip 7, thereby fixing the annular plate 5 to prevent the nut 4 from slipping off the screw rod 1 during subsequent use. The anti-loosening effect is good, which improves the practicality of the device.

[0026] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A fastener with an anti-slip mechanism, comprising a screw (1), a bolt head (2) being fixedly mounted on the bottom wall of the screw (1), a connecting piece (3) being arranged on the side wall of the screw (1), and a threaded hole being provided on the surface of the connecting piece (3), characterized in that: Also includes; Two grooves (11) are provided on the side wall of the screw rod (1); the inner side wall surfaces of the two grooves (11) adjacent to each other are provided with first saw teeth (111); the side wall of the screw rod (1) is provided with a nut (4); the nut (4) is spirally mounted on the side wall of the screw rod (1); the side wall of the screw rod (1) is provided with an annular plate (5); the annular plate (5) is located below the nut (4); two mounting blocks (6) are fixedly mounted on the bottom end wall surface of the annular plate (5); the side wall surfaces of the two mounting blocks (6) adjacent to each other are provided with a clamping strip (7); the side wall surfaces of the two clamping strips (7) adjacent to each other are provided with second saw teeth (71).

2. A fastener with an anti-slip mechanism according to claim 1, characterized in that: The two grooves (11) are symmetrical with respect to the central axis of the screw (1).

3. The fastener with an anti-slip mechanism according to claim 1, characterized in that: The clamping strip (7) is made of a flexible material, and the width of the clamping strip (7) is equal to the width of the groove (11).

4. The fastener with an anti-slip mechanism according to claim 1, characterized in that: The opening direction of the first saw tooth (111) is inclined upward, the opening direction of the second saw tooth (71) is inclined downward, and the second saw tooth (71) corresponds to the first saw tooth (111).

5. The fastener with an anti-slip mechanism according to claim 1, characterized in that: The side wall of the screw rod (1) is sleeved with a gasket (8), and the gasket (8) is located between the connecting piece (3) and the nut (4).

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