Anti-vibration screw-slipping screw

Abstract

The utility model relates to the technical field of screws, and discloses a vibration-proof screw slip prevention screw which comprises a screw head plate, the lower side of the screw head plate is connected with a first insertion rod, the lower side of the first insertion rod is connected with a screw body, the lower side of the screw head plate is connected with a first spring, and the lower side of the first spring is connected with a friction block. The lower side of the screw head plate is connected with a friction block, the friction block is located on the outer side of the screw body, the lower side of the screw head plate is connected with an outer sleeve, and the outer sleeve is located on the outer side of the friction block. And through the deformation characteristic of the metal material, even if the device is slightly loosened, the situation that the device is completely separated from the article under the driving of the vibration force of the article cannot occur.

Description

Technical Field

[0001] The utility model belongs to the technical field of screws, in particular to a shock-proof thread-slipping screw. Background Art

[0002] Screws are tools that use the physical and mathematical principles of the circular rotation of an object's inclined surface and friction to gradually tighten objects and parts. During the use of existing screws, the screws often become loose and stripped due to vibration of the fixed object. For this reason, we propose a screw that prevents vibration and stripping. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a screw with anti-vibration thread slippage, which effectively solves the above problem.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a shock-proof and thread-slip screw, comprising a screw head plate, a first plug rod being connected to the lower side of the screw head plate, a screw body being connected to the lower side of the first plug rod, a first spring being connected to the lower side of the first spring, and a friction block being connected to the outer side of the screw body.

[0005] Preferably, the lower side of the screw head plate is connected with a sleeve, the sleeve is located on the outer side of the friction block, and the lower side of the sleeve is evenly connected with three groups of second metal elastic curved sheets.

[0006] Preferably, three groups of first metal elastic curved sheets are evenly connected to the lower side of the friction block.

[0007] Preferably, an action block is connected to the lower side of the friction block, a groove is provided on the body of the action block, a second spring and a second insertion rod are placed in the groove of the action block, and the second spring is located on the upper side of the second insertion rod.

[0008] Preferably, the inner wall of the first spring is connected to a second limiting plate.

[0009] Preferably, a spiral tube is connected to the lower side of the friction block, and the friction block is connected to the action block via the spiral tube.

[0010] Preferably, two groups of guide rods are connected to the upper side of the friction block, and the upper sides of the two groups of guide rods respectively penetrate the left and right sides of the screw head plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. By providing the friction block, the second metal elastic curved sheet and the first metal elastic curved sheet, the friction between the device and the object is relatively large, thereby reducing the subsequent loosening and slackening of the device and the object. Moreover, due to the deformation characteristics of the metal material itself, even if the device is slightly loose, it will not completely detach from the object due to the vibration force of the object.

[0013] 2. The action block is provided to facilitate the placement of the second spring and the second insertion rod. The second spring and the second insertion rod are provided so that the lower side of the friction block, i.e., the bottom end of the second insertion rod, is always on the surface of the object, thereby improving the stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0015] In the attached picture:

[0016] Figure 1 This is a schematic diagram of the structure of the screw for preventing the slipping of the thread in the utility model;

[0017] Figure 2 This is a schematic diagram of the second spring structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the friction block structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the action block of the utility model.

[0020] In the figure: 100, screw head plate; 110, first plug rod; 120, screw body; 130, first spring; 131, second limit plate; 140, friction block; 141, first metal elastic curved sheet; 150, outer sleeve; 151, second metal elastic curved sheet; 160, guide rod; 170, screw tube; 180, action block; 181, second spring; 182, second plug rod. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4, a shock-proof thread-slipping screw comprises a screw head plate, a first plug rod is fixedly connected to the lower side of the screw head plate, a screw body is fixedly connected to the lower side of the first plug rod, a first spring is fixedly connected to the lower side of the screw head plate, and a friction block is fixedly connected to the lower side of the first spring, and the friction block is located at the outer side of the screw body. When the device is in use, the staff rotates the device through the groove on the upper side of the screw head plate. After the two objects are connected through the screw body, the friction block is attached to the outer side of the object. Subsequently, when the device is installed, the elasticity generated by the deformation of the first spring drives the friction block to be close to the object, so that even if the two objects shake or loosen due to vibration during use, the friction force generated by the friction block attached to the outer side of the object can reduce the self-rotation phenomenon of the device and improve the stability of the device.

[0023] The lower side of the screw head plate is fixedly connected with a sleeve, and the sleeve is located on the outer side of the friction block. The lower side of the sleeve is evenly and fixedly connected with three groups of second metal elastic curved sheets. The first spring is protected by the sleeve, and the friction between the device and the object is increased by the second metal elastic curved sheets. The lower side of the friction block is evenly and fixedly connected with three groups of first metal elastic curved sheets. The friction between the friction block and the object is increased by the first metal elastic curved sheets. The friction between the friction block and the object is greater by arranging the friction block, the second metal elastic curved sheets and the first metal elastic curved sheets, thereby reducing the subsequent loosening and slackening of the device and the object. In addition, through the deformation characteristics of the metal material itself, even if the device is slightly loose, it will not completely detach from the object due to the vibration force of the object.

[0024] The lower side of the friction block is fixedly connected to an action block, and the body of the action block is provided with a groove, and a second spring and a second plug rod are placed in the groove of the action block, and the second spring and the second plug rod are fixedly connected, and the second spring is located on the upper side of the second plug rod, and the second spring and the second plug rod are conveniently placed by arranging the action block, and the lower side of the friction block, that is, the bottom end of the second plug rod is always on the surface of the object by arranging the second spring and the second plug rod, so as to improve the stability of the use of the device, and the inner wall of the first spring is fixedly connected to a second limiting plate, and the upper side of the friction block is limited by arranging the second limiting plate. To prevent the friction block from damaging the first spring, thereby improving the stability of the device, a screw tube is fixedly connected to the lower side of the friction block, and the friction block is connected to the action block through the screw tube. The screw tube is provided to facilitate the connection between the action block and the friction block. Two groups of guide rods are fixedly connected to the upper side of the friction block, and the upper sides of the two groups of guide rods respectively penetrate the left and right sides of the screw head plate. The friction block is limited by the guide rods, thereby preventing the friction block from not following the rotation of the screw head plate due to rotation during the installation of the device, thereby preventing the first spring from being damaged and improving the stability of the device.

Claims

1. A screw with anti-vibration thread slipping, characterized in that: The invention comprises a screw head plate (100), the lower side of which is connected to a first plug rod (110), the lower side of which is connected to a screw body (120), the lower side of which is connected to a first spring (130), the lower side of which is connected to a friction block (140), and the friction block (140) is located on the outer side of the screw body (120).

2. The anti-vibration thread-slipping screw according to claim 1, characterized in that: The lower side of the screw head plate (100) is connected with a sleeve (150), the sleeve (150) is located outside the friction block (140), and the lower side of the sleeve (150) is evenly connected with three groups of second metal elastic curved sheets (151).

3. The anti-vibration thread-slipping screw according to claim 1, characterized in that: The lower side of the friction block (140) is evenly connected with three groups of first metal elastic curved sheets (141).

4. The anti-vibration thread-slipping screw according to claim 1, characterized in that: The lower side of the friction block (140) is connected to an action block (180), the body of the action block (180) is provided with a groove, a second spring (181) and a second insertion rod (182) are placed in the groove of the action block (180), and the second spring (181) is located on the upper side of the second insertion rod (182).

5. The anti-vibration thread-slipping screw according to claim 1, characterized in that: The inner wall of the first spring (130) is connected to a second limiting plate (131).

6. The anti-vibration thread-slipping screw according to claim 1, characterized in that: The lower side of the friction block (140) is connected to a spiral tube (170), and the friction block (140) is connected to the action block (180) via the spiral tube (170).

7. The anti-vibration thread-slipping screw according to claim 1, characterized in that: The upper side of the friction block (140) is connected to two groups of guide rods (160), and the upper sides of the two groups of guide rods (160) respectively penetrate the left and right sides of the screw head plate (100).

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