Wear-resistant bolt

Abstract

The utility model discloses a wear-resistant bolt, and belongs to the technical field of bolts. A wear-resistant bolt comprises a screw, a limiting circular plate is arranged on the side wall of the screw, a connecting pipe is arranged on the side wall of the limiting circular plate, a protection assembly is sleeved with the connecting pipe, the circumferential outer wall of the screw is sleeved with a first gasket, and a second gasket is arranged on the side wall of a nut. The inner wall of the hexagonal rotating groove and the outer wall of the hexagonal rotating seat can be sealed and protected by utilizing a rubber sealing gasket I and a rubber sealing gasket II which are respectively arranged on the protective cover and the protective sleeve, so that the hexagonal rotating seat is prevented from being corroded by the external environment; the first sealing ring and the second sealing ring which are arranged on the outer wall of the first gasket can be used for buffering a workpiece and a bolt head, and the balls can provide rolling support between the first gasket and the workpiece due to the arrangement of the balls, so that the friction resistance in the bolt screwing behavior is reduced, the bolt is screwed more smoothly and easily, and the service life of the bolt is prolonged. And moreover, the abrasion degree of parts is reduced, and the service life of the bolt is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, and more specifically to a wear-resistant bolt. Background Art

[0002] Bolts are a type of mechanical connection element used to fasten components and are widely used in the engineering field. Bolts usually consist of two parts: a head and a threaded shaft. The head of a bolt is usually designed in a hexagonal shape to facilitate tightening with a wrench or spanner. The threaded part of the bolt is the threaded shaft, which is used to connect two or more components together. The threaded part is usually equipped with a nut to ensure a secure connection. The working principle of the bolt is to use the interaction between the thread and the nut to fix two or more components together. When the bolt is tightened, the threads of the bolt will bite into the threads of the nut, forming resistance and friction, and tightly fixing the components together.

[0003] The existing bolt ends are usually hexagonal or have hexagonal grooves, which makes it easier for people to tighten. However, when using the bolts, the inner wall of the inner hexagon or the surface of the outer hexagon of the bolt end lacks a certain protective structure, and the bolt head is exposed to the outside for a long time. This leads to the external environment easily causing certain corrosion to the inside of the inner hexagon hole and the outer wall of the outer hexagon during long-term use, which easily affects the wear resistance of the bolt, thereby reducing the service life of the bolt, causing great trouble to the actual use;

[0004] In addition, existing bolts often require the use of washers to provide a more uniform bearing surface to ensure a stable and safe connection. However, in actual use, when the bolts are rotated and tightened, the bolt heads and nuts will drive their respective washers to rotate due to the rotation, and these washers will produce greater friction on the bolt heads, nuts and workpieces, which can easily cause certain wear to the bolt heads, nuts and workpieces, thereby affecting the service life of the bolt heads and nuts, and causing certain appearance damage to the workpieces, causing many inconveniences in use.

[0005] In view of this, we propose a wear-resistant bolt. Utility Model Content

[0006] 1. Technical problems to be solved

[0007] The utility model aims to provide a wear-resistant bolt to solve the problems of poor protection and easy wear on the bolt head and nut when using a gasket in the above background technology.

[0008] 2. Technical solution

[0009] A wear-resistant bolt comprises a screw rod, a limiting circular plate is arranged on the side wall of the screw rod, a connecting tube is arranged on the side wall of the limiting circular plate, a protective component is sleeved inside the connecting tube, the protective component comprises a connecting block 1, a hexagonal rotating seat is connected to the side wall of the connecting tube, a hexagonal rotating groove is provided inside the hexagonal rotating seat, a sliding opening is provided on the inner wall of the hexagonal rotating groove, a gasket 1 is sleeved on the circumferential outer wall of the screw rod, a nut is threadedly sleeved on the circumferential outer wall of the screw rod, and a gasket 2 is arranged on the side wall of the nut.

[0010] Preferably, a spring is provided on the inner wall of the connecting pipe, and an end of the spring is connected to a side wall of the connecting block.

[0011] Preferably, a connecting rod is provided on the outer wall of the other side of the connecting block, and the connecting rod is connected to a protective cover after extending to the inside of the hexagonal rotating seat.

[0012] Preferably, the outer wall of the protective cover is provided with a rubber sealing pad 1 and a connecting block 2, and a plurality of the connecting blocks 2 match the sliding opening.

[0013] Preferably, two ends of the plurality of connection blocks are connected with protective sleeves, and the inner wall of the protective sleeve is provided with a second rubber sealing pad.

[0014] Preferably, sealing ring 1 and sealing ring 2 are provided on the outer walls on both sides of gasket 1, and the diameter of sealing ring 2 is slightly larger than that of sealing ring 1.

[0015] Preferably, a ball bearing is provided on the outer wall of one side of the gasket 1, and the gasket 2 has the same structure as the gasket 1.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the utility model has the following advantages: when using the bolt, a tool can be used to insert it into the hexagonal rotating groove. At this time, due to the compression of the spring, the protective cover will move toward the inside of the hexagonal rotating groove, so that the tool can be rotated against the bolt and the bolt can be tightened with the nut. The protective sleeve can also be directly slid inward and the tool can be used to fix the outer wall of the hexagonal rotating seat to tighten the bolt. After the tightening is completed, the spring rebound can be used to drive the protective cover and the protective sleeve to move outward, and the rubber sealing gasket 1 and the rubber sealing gasket 2 respectively provided on the protective cover and the protective sleeve are used to seal and protect the inner wall of the hexagonal rotating groove and the outer wall of the hexagonal rotating seat, so as to prevent the external environment from corroding the hexagonal rotating seat and affecting the wear resistance of the bolt and the later use of the bolt.

[0018] In the process of tightening the bolt, the sealing ring 1 and the sealing ring 2 arranged on the outer wall of the gasket 1 can be used to buffer the workpiece and the bolt head. Secondly, due to the setting of the ball, the ball can provide rolling support between the gasket 1 and the workpiece, reducing the friction resistance in the bolt tightening behavior, making the bolt tightening smoother and easier, and can reduce the rotational friction contact between the gasket 1 and the workpiece and the hexagonal rotating seat. When the nut is tightened, the ball on the gasket 2 can be used to reduce the friction between the workpiece and the nut, which helps to reduce the wear of parts and extend the service life of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0022] Explanation of the numbers in the figure: 100, screw; 110, limiting circular plate; 120, connecting pipe; 130, spring; 140, connecting block 1; 150, connecting rod; 160, protective cover; 170, rubber sealing gasket 1; 180, connecting block 2; 190, protective sleeve; 191, rubber sealing gasket 2; 200, hexagonal rotating seat; 210, hexagonal rotating groove; 220, sliding mouth; 300, gasket 1; 310, sealing ring 1; 320, ball; 330, sealing ring 2; 400, nut; 410, gasket 2. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0025] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0026] See also Figure 1-3 , the utility model provides a technical solution:

[0027] A wear-resistant bolt, comprising a screw rod 100, a limiting circular plate 110 is arranged on the side wall of the screw rod 100, a connecting pipe 120 is arranged on the side wall of the limiting circular plate 110, a protective component is sleeved inside the connecting pipe 120, the protective component comprises a connecting block 140, a hexagonal rotating seat 200 is connected to the side wall of the connecting pipe 120, a hexagonal rotating groove 210 is arranged inside the hexagonal rotating seat 200, a sliding opening 220 is arranged on the inner wall of the hexagonal rotating groove 210, and the sliding opening 220 facilitates the movement of the protective cover 160 and the protective sleeve 190;

[0028] A gasket 300 is sleeved on the outer circumferential wall of the screw rod 100 , a nut 400 is threadedly sleeved on the outer circumferential wall of the screw rod 100 , and a gasket 2 410 is arranged on the side wall of the nut 400 .

[0029] Specifically, a spring 130 is provided on the inner wall of the connecting tube 120, and the end of the spring 130 is connected to the side wall of the connecting block 140, so as to facilitate the rebound of the protective cover 160 and the protective sleeve 190 so that they can seal and protect the outer wall of the hexagonal rotating seat 200 and the inside of the hexagonal rotating groove 210, thereby reducing the corrosion of the hexagonal rotating seat 200 caused by the external environment.

[0030] Furthermore, a connecting rod 150 is disposed on the outer wall of the other side of the connecting block 140 , and the connecting rod 150 is connected to a protective cover 160 after extending into the inside of the hexagonal rotating seat 200 .

[0031] Furthermore, the outer wall of the protective cover 160 is provided with a rubber sealing pad 170 and a connecting block 2 180 , and a plurality of connecting blocks 180 match the sliding opening 220 , so as to facilitate the movement of the protective cover 160 and the protective sleeve 190 .

[0032] Furthermore, the ends of the plurality of connecting blocks 180 are connected with a protective sleeve 190 , and the inner wall of the protective sleeve 190 is provided with a rubber sealing pad 191 , so as to protect the outer wall of the hexagonal rotating seat 200 .

[0033] It is worth noting that sealing ring 1 310 and sealing ring 2 330 are provided on the outer walls on both sides of gasket 1 300. The diameter of sealing ring 2 330 is slightly larger than that of sealing ring 1 310, so as to provide buffering for the contact point between gasket 1 400 and gasket 2 420 and reduce the influence of external vibration during use.

[0034] In some embodiments: during the tightening process, the height of the sealing ring 1 310 and the sealing ring 2 330 on the outer wall of the gasket 1 400 and the gasket 2 420 is higher than the ball, so a certain friction force can be provided during the pressing process, making it easier to tighten the bolts.

[0035] It is worth noting that a ball 320 is provided on the outer wall of one side of gasket 1 300, and gasket 2 410 has the same structure as gasket 1 300, so that when the nut is installed, gasket 2 410 can be used to contact and press the workpiece, and the sealing ring 1 310 and the sealing ring 2 330 on the outer wall of gasket 2 410 first contact the workpiece, and then during the tightening process, the ball 320 is used to reduce the hard friction between the workpiece and gasket 2 410, thereby causing damage to the workpiece.

[0036] Working principle: When using the bolt, a tool can be used to insert it into the hexagonal rotating groove 210. At this time, due to the compression of the spring 130, the protective cover 160 will move into the hexagonal rotating groove 210, so that the tool can be rotated against the bolt, and the bolt can be tightened with the nut 400. The protective sleeve 190 can also be directly slid inward, and the tool can be used to fix the outer wall of the hexagonal rotating seat 200, and then the bolt can be tightened. After the tightening is completed, the rebound of the spring 130 can be used to drive the protective cover 160 and the protective sleeve 190 to move outward, and the rubber sealing gasket 170 and the rubber sealing gasket 2 191 respectively provided on the protective cover 160 and the protective sleeve 190 are used to seal and protect the inner wall of the hexagonal rotating groove 210 and the outer wall of the hexagonal rotating seat 200, so as to prevent the external environment from corroding the hexagonal rotating seat 200, affecting the wear resistance of the bolt and the later use of the bolt;

[0037] In the process of tightening the bolt, the sealing ring 310 and the sealing ring 330 arranged on the outer wall of the gasket 400 can be used to buffer the workpiece and the bolt head. Secondly, due to the arrangement of the ball 320, the ball 320 can provide rolling support between the gasket 400 and the workpiece, reducing the friction resistance in the bolt tightening behavior, making the bolt tightening smoother and easier, and can reduce the rotational friction contact between the gasket 400 and the workpiece and the hexagonal rotating seat 200. When the nut 400 is tightened, the ball on the gasket 410 can be used to reduce the friction between the workpiece and the nut, which helps to reduce the wear of components and extend the service life of the bolt.

[0038] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A wear-resistant bolt, comprising a screw rod (100), characterized in that: The side wall of the screw rod (100) is provided with a limiting circular plate (110), the side wall of the limiting circular plate (110) is provided with a connecting tube (120), the interior of the connecting tube (120) is sleeved with a protective component, the protective component comprises a connecting block 1 (140), the side wall of the connecting tube (120) is connected with a hexagonal rotating seat (200), the interior of the hexagonal rotating seat (200) is provided with a hexagonal rotating groove (210), the inner wall of the hexagonal rotating groove (210) is provided with a sliding opening (220), the circumferential outer wall of the screw rod (100) is sleeved with a gasket 1 (300), the circumferential outer wall of the screw rod (100) is threadedly sleeved with a nut (400), and the side wall of the nut (400) is provided with a gasket 2 (410).

2. A wear-resistant bolt according to claim 1, characterized in that: A spring (130) is disposed on the inner wall of the connecting pipe (120), and the end of the spring (130) is connected to the side wall of the connecting block (140).

3. A wear-resistant bolt according to claim 2, characterized in that: A connecting rod (150) is disposed on the outer wall of the other side of the connecting block 1 (140), and the connecting rod (150) is connected to a protective cover (160) after extending to the inside of the hexagonal rotating seat (200).

4. A wear-resistant bolt according to claim 3, characterized in that: The outer wall of the protective cover (160) is provided with a rubber sealing pad (170) and a connecting block (180), and a plurality of connecting blocks (180) are matched with the sliding opening (220).

5. A wear-resistant bolt according to claim 4, characterized in that: The ends of the plurality of second connection blocks (180) are connected to a protective sleeve (190), and the inner wall of the protective sleeve (190) is provided with a second rubber sealing pad (191).

6. A wear-resistant bolt according to claim 5, characterized in that: The outer walls of both sides of the gasket 1 (300) are provided with a sealing ring 1 (310) and a sealing ring 2 (330), and the diameter of the sealing ring 2 (330) is slightly larger than that of the sealing ring 1 (310).

7. The wear-resistant bolt according to claim 6, characterized in that: A ball (320) is disposed on the outer wall of one side of the gasket 1 (300), and the gasket 2 (410) has the same structure as the gasket 1 (300).

Images