High-performance bolt

Abstract

The utility model discloses a high-performance bolt, which belongs to the field of fasteners and comprises a screw rod and a bolt head, an oil storage cavity is formed in the screw rod, a plurality of lubricating blocks capable of extending into the oil storage cavity in a sliding manner are arranged on the side wall of the bolt, lubricating channels capable of communicating the oil storage cavity with the external space are formed on the lubricating blocks, and an oil filling hole for communicating the inside of the oil storage cavity with the external space is arranged at the bolt head. A first spring capable of enabling the lubricating block to extend out of the side wall of the screw rod to form a protrusion is fixedly arranged in the screw rod, the part, extending out of the screw rod, of the lubricating block is in an arc shape, the arc bending direction faces the thread direction of the screw rod, and after the bolt is tightly matched, threads at the fastening position extrude the lubricating block, so that the lubricating block slidably extends into the oil storage cavity. The lubricating oil flows to the screw-thread matching position of the bolt along the lubricating channel and slowly flows along the direction of the screw thread, so that the screw-thread matching position is completely lubricated, and the problem that the screw thread matching position of the bolt cannot be completely lubricated due to the fact that the lubricating oil can only be dripped into the gap of the bolt head to slowly flow down after the bolt is tightly matched is solved.

Description

Technical Field

[0001] The utility model discloses a high-performance bolt, belonging to the field of fasteners. Background Art

[0002] A bolt is a fastener that is fastened together with a nut.

[0003] In order to prevent the bolt surface from rusting, existing bolts often need to be lubricated after installation. However, after the existing bolts are installed, lubricating oil can only be dripped into the gap at the bolt installation location, so that the lubricating oil flows in through the gap between the bolt and the installation portion to achieve the lubrication effect. The lubricating oil applied cannot enter the bolt mating location to lubricate the bolt mating location, resulting in rust at the bolt where the lubricating oil is not applied.

[0004] A high-performance bolt is proposed to solve the problem that lubricating oil cannot be applied to the fastening joint after the bolt is installed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a high-performance bolt.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a high-performance bolt, including a screw rod and a bolt head, an oil storage cavity is formed in the screw rod, a plurality of lubricating blocks that can slide into the oil storage cavity are provided on the side wall of the bolt, the lubricating blocks are formed with a lubrication channel that can connect the oil storage cavity with the external space, and a refueling hole that connects the inside of the oil storage cavity with the external space is provided on the bolt head.

[0007] The utility model is further configured as follows: a spring is fixedly arranged inside the screw rod, which can make the lubricating block extend out of the side wall of the screw rod to form a protrusion; the part of the lubricating block extending out of the screw rod is in an arc shape and the curvature of the arc is arranged toward the screw thread direction.

[0008] The utility model is further configured as follows: an oil pushing plate tightly fitting the side wall of the oil storage chamber is slidably provided in the oil storage chamber, a spring 2 which can make the oil pushing plate slide toward the top of the oil storage chamber is fixedly provided at the bottom of the oil storage chamber, and the lubricating block can slide into the oil storage chamber and abut against the top of the oil pushing plate.

[0009] The utility model is further configured as follows: a reset piece which can extend out of the bottom of the screw rod is provided at the bottom of the oil pushing plate, and the reset piece can drive the oil pushing plate to slide toward the bottom of the oil storage cavity.

[0010] The utility model is further configured as follows: a quantity indicating rod that can extend out of the reset member is slidably provided inside the reset member, a scale line is provided at one end of the quantity indicating rod away from the bolt head, and a hollow spherical elastic inflatable rod head with a diameter larger than that of the reset member is provided at one end of the quantity indicating rod close to the bolt head.

[0011] The utility model is further configured as follows: a limiting piece is rotatably provided on one side of the oil pushing plate close to the bolt head and can be abutted against one end of the metering rod close to the bolt head for limiting position; a side of the limiting piece away from the abutting against the metering rod is provided with an airbag which can be deformed and causes the limiting piece to rotate away from the metering rod; and the lubricating block can abut against the airbag and cause the airbag to deform.

[0012] The utility model is further configured as follows: a torsion spring is fixedly arranged between the limiter and the oil pushing plate, which can enable the limiter to rotate to abut against the metering rod.

[0013] The utility model is further configured as follows: an annular pull ring is provided at one end of the quantity display rod away from the bolt head.

[0014] The utility model is further configured as follows: an elastic sealing member which can keep the oil storage cavity in a sealed state is detachably provided at the oil filling hole.

[0015] Compared with the prior art, the beneficial effect of the utility model is as follows: when the product is in use, after the bolts are tightened and matched, the threads at the matching position abut against each other, causing the lubricating block to be pushed and slid into the oil storage chamber. At this time, one end of the lubrication channel is placed in the oil storage chamber filled with lubricating oil, and the other end is connected to the external space, so that the lubricating oil flows out along the lubrication channel to the bolt matching position, and flows slowly along the thread direction, thereby lubricating the bolt matching position, solving the problem that after the bolts are tightened, the lubricating oil can only be dripped into the gap of the bolt head so that the lubricating oil slowly flows along the gap, and the thread at the bolt matching position cannot be guaranteed to be completely lubricated. At the same time, the product can judge the amount of remaining lubricating oil in the oil storage chamber by the extended length of the display rod relative to the reset part, solving the problem that inspectors cannot determine whether it is necessary to add lubricating oil to the product through external observation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the utility model in a non-working state from the side of the entire shaft;

[0017] Figure 2 It is a schematic diagram of the structure of the utility model in overall section in working state;

[0018] Figure 3 It is a schematic structural diagram of the utility model cut at the position limiter when in working state;

[0019] Figure 4 It is a schematic structural diagram of the utility model cut away at the position limiting member when the utility model is not in working state.

[0020] Figure numerals: 1. screw rod; 2. bolt head; 3. oil storage chamber; 4. lubrication block; 5. lubrication channel; 7. spring one; 8. oil push plate; 9. spring two; 10. reset member; 11. metering rod; 12. rod head; 13. limit member; 14. airbag; 15. torsion spring; 16. pull ring; 17. sealing member. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on 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 in 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] like Figure 1 and Figure 2 As shown, a high-performance bolt of this embodiment includes a screw rod 1 and a bolt head 2. An oil storage chamber 3 is formed in the screw rod 1. The side wall of the bolt is provided with a plurality of lubrication blocks 4 that can slide into the oil storage chamber 3. The lubrication blocks 4 are formed with lubrication channels 5 that can connect the oil storage chamber 3 with the external space. The bolt head 2 is provided with a refueling hole that connects the inside of the oil storage chamber 3 with the external space.

[0023] When using this product, the user can tighten this product to the required tightening position and then inject lubricating oil into the oil storage chamber 3 through the filling hole. After the bolt is matched, the thread of the screw rod 1 is tightly matched with the threaded part of the fastening position, so that the lubricating block 4 arranged at this part is subjected to pressure toward the oil storage chamber 3, so that the lubricating block 4 slides into the oil storage chamber 3. At this time, one end of the lubrication channel 5 is placed in the oil storage chamber 3 filled with lubricating oil and the other end is connected to the outside, guiding the lubricating oil along the lubrication channel 5 to flow to the thread matching position of the screw rod 1, so that the lubricating oil slowly flows along the thread matching position of the screw 1, and plays a lubricating role on the threaded part of the screw 1 at the matching position, solving the problem that after the bolt is matched and tightened, the lubricating oil can only be dripped into the gap of the bolt head 2 so that the lubricating oil slowly flows along the gap, and it is impossible to ensure that the thread at the bolt matching position is completely lubricated. This makes this product have the advantages of good performance compared with the existing technology products, and has the advantages of not being easy to produce partial rust, smooth overall meshing, and not being easy to cause rust to cause the bolt to break easily.

[0024] like Figure 1 and Figure 2As shown, a spring 7 is fixedly provided in the screw 1 so that the lubricating block 4 can extend out of the side wall of the screw 1 to form a bulge. The portion of the lubricating block 4 extending out of the screw 1 is in an arc shape and the bending direction of the arc is arranged toward the thread direction of the screw 1. An oil pushing plate 8 is slidably provided in the oil storage chamber 3 so as to fit tightly with the side wall of the oil storage chamber 3. A spring 9 is fixedly provided at the bottom of the oil storage chamber 3 so that the oil pushing plate 8 can slide toward the top of the oil storage chamber 3. The lubricating block 4 can slidably extend into the oil storage chamber 3 and abut against the top of the oil pushing plate 8.

[0025] When the product is in use, when the user screws the screw rod 1 into the fastening position, the threads at the fastening position are closely matched with the threads of the screw rod 1, so that when the threads at the fastening position abut against the threads of the screw rod 1, the threads at the fastening position will form a thrust into the oil storage chamber 3 on the lubricating block 4 protruding from the side wall of the screw rod 1. Because the part of the lubricating block 4 protruding from the side wall of the screw rod 1 is in an arc shape, during the process of screwing the screw rod 1, the moving direction of the thread is consistent with the force direction of the lubricating block 4, and the process of screwing the screw rod 1 will not be affected by the protruding lubricating block 4, thereby ensuring the smooth tightening process of the product. At the same time, when the screw rod 1 is not screwed to the terminal, the lubricating block 4 pushed during the tightening process, when leaving the thread fitting position, is reset to the state of protruding from the side wall of the screw rod 1 under the action of the spring 1 7, so that the lubrication channel 5 on this part of the lubricating block 4 cannot be placed in the oil storage chamber 3. The lubricating oil in the oil storage chamber 3 is continuously flowing out from the lubrication passage 5, the lubricating oil in the oil storage chamber 3 is reduced, and the oil pushing plate 8 is reduced by the lubricating oil pressure, and slides toward the bolt head 2 under the action of the spring 2 9, causing the lubricating oil to flow toward the part of the lubricating block 4 extending into the oil storage chamber 3. At the same time, when the extended lubricating block 4 abuts against the oil pushing plate 8, the oil pushing plate 8 cannot continue to push the lubricating oil toward the bolt head 2, causing the lubricating oil to continuously flow out along the lubrication passage 5 closest to the oil pushing plate 8, so that the lubricating oil flows out along the point closest to the starting point of the fit to lubricate the lower part of the unfitted bolt thread, solving the problem that the unfitted thread is more seriously affected by the environment than the fit, causing the unfitted thread to rust faster. Applying lubricating oil to this part of the thread ensures that it will not rust.

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a reset member 10 which can extend out of the bottom of the screw rod 1 is provided at the bottom of the oil pushing plate 8, and the reset member 10 can drive the oil pushing plate 8 to slide toward the bottom of the oil storage chamber 3. A metering rod 11 which can extend out of the reset member 10 is slidably provided in the reset member 10, and a scale line is provided at the end of the metering rod 11 away from the bolt head 2, and an elastic inflatable rod head 12 in the shape of a hollow ball whose diameter is larger than the diameter of the reset member 10 is provided at the end of the metering rod 11 close to the bolt head 2. A limit member 13 which can abut against the end of the metering rod 11 close to the bolt head 2 is provided on the side of the oil pushing plate 8 close to the bolt head 2, and a limit member 13 is provided on the side of the limit member 13 away from the abutment with the metering rod 11, and an air bag 14 which can be deformed and prompts the limit member 13 to rotate away from the metering rod 11 is provided on the side of the limit member 13 away from the abutment with the metering rod 11, and the lubrication block 4 can abut against the air bag 14 and prompt the air bag 14 to deform, and a torsion spring 15 which can rotate the limit member 13 to the abutment with the metering rod 11 is fixed between the limit member 13 and the oil pushing plate 8.

[0027] When the product is in use, as the lubricating oil in the oil storage chamber 3 continuously flows out of the lubricating screw 1 along the lubrication channel 5 and decreases, the oil pushing plate 8 continuously slides toward the bolt head 2. At this time, the limiting member 13 abuts against the rod head 12, so that the reset member 10 and the metering rod 11 move together with the oil pushing plate 8. When the oil pushing plate 8 slides to the abutment point between the lubricating block 4 and the air bag 14 which is closest to the matching starting point, the air bag 14 abuts against and pushes the limiting member 13 to rotate away from the rod head 12 under pressure deformation, so that the rod head 12 is not restricted by the limiting member 13 in the lubricating oil and relies on the air inside the rod head 12. At the same time, the metering rod 11 is a hollow rod, so that the metering rod 11 moves toward the bolt head 2 under the action of buoyancy. As the lubricating oil continues to decrease, the lubricating oil The lowering of the liquid level causes the indicating rod 11 to slide out from the end of the reset part 10 away from the bolt head 2. The lower the lubricating oil level, the more the indicating rod 11 extends. The scale on the indicating rod 11 decreases continuously from the end away from the bolt head 2 along the length direction of the indicating rod 11. When the marked value is zero, it means that the lubricating oil is exhausted and needs to be replaced. This solves the problem that inspectors cannot determine whether it is necessary to add lubricating oil to the product through external observation. If lubricating oil needs to be added to it at this time, it is necessary to pull the indicating rod 11 away from the bolt head 2 with force, causing the rod head 12 to deform so that the top of the rod head 12 abuts against the limiting piece 13 and cannot slide. At this time, adding lubricating oil can fully lubricate the product again.

[0028] like Figure 1 and Figure 2 As shown, an annular pull ring 16 is provided at one end of the metering rod 11 away from the bolt head 2, and a removable elastic seal 17 is provided at the filling hole to keep the oil storage chamber 3 in a sealed state.

[0029] When the product is in use, when the user needs to add lubricating oil, the user can first pull out the seal 17, and then pull the pull ring 16 to move the metering rod 11 away from the bolt head 2 until the rod head 12 cannot move, thereby driving the oil push plate 8 to slide to the bottom of the oil storage chamber 3. At this time, the lubricating oil is filled into the oil storage chamber 3 along the filling hole. After it is full, the seal 17 is inserted back into the filling hole to keep the oil storage chamber 3 in a sealed state. At this time, the pull ring 16 is released, and the product can perform a complete lubrication operation by itself.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-performance bolt, comprising a screw rod (1) and a bolt head (2), characterized in that: An oil storage cavity (3) is formed in the screw rod (1), a plurality of lubricating blocks (4) are slidably inserted into the oil storage cavity (3) on the side wall of the bolt, the lubricating blocks (4) are formed with lubrication passages (5) which can connect the oil storage cavity (3) with an external space, and a refueling hole which connects the inside of the oil storage cavity (3) with an external space is provided at the bolt head (2).

2. A high performance bolt according to claim 1, characterized in that: A spring (7) is fixedly provided inside the screw (1) and enables the lubricating block (4) to extend out of the side wall of the screw (1) to form a protrusion. The portion of the lubricating block (4) extending out of the screw (1) is in an arc shape, and the curvature of the arc is arranged toward the thread direction of the screw (1).

3. A high performance bolt according to claim 2, characterized in that: An oil push plate (8) is slidably provided in the oil storage chamber (3) and is in close contact with the side wall of the oil storage chamber (3). A spring (9) is fixedly provided at the bottom of the oil storage chamber (3) and is capable of enabling the oil push plate (8) to slide toward the top of the oil storage chamber (3). The lubricating block (4) can be slidably extended into the oil storage chamber (3) and abut against the top of the oil push plate (8).

4. A high performance bolt according to claim 3, characterized in that: The bottom of the oil pushing plate (8) is provided with a reset member (10) which can extend out of the bottom of the screw rod (1), and the reset member (10) can drive the oil pushing plate (8) to slide toward the bottom of the oil storage chamber (3).

5. A high performance bolt according to claim 4, characterized in that: A metering rod (11) is slidably disposed inside the reset member (10) and can extend out of the reset member (10); a scale line is disposed at one end of the metering rod (11) away from the bolt head (2); and a hollow spherical elastic inflatable rod head (12) having a diameter larger than that of the reset member (10) is disposed at one end of the metering rod (11) close to the bolt head (2).

6. A high performance bolt according to claim 5, characterized in that: The oil push plate (8) is provided with a stopper (13) on one side close to the bolt head (2) and capable of abutting against one end of the metering rod (11) close to the bolt head (2) for a limit position, and the stopper (13) is provided with an air bag (14) on the side away from the abutment against the metering rod (11) and capable of deforming and causing the stopper (13) to rotate away from the metering rod (11), and the lubricating block (4) can abut against the air bag (14) and cause the air bag (14) to deform.

7. A high performance bolt according to claim 6, characterized in that: A torsion spring (15) is fixedly provided between the limiting member (13) and the oil pushing plate (8) to enable the limiting member (13) to rotate to abut against the metering rod (11).

8. A high performance bolt according to claim 7, characterized in that: An annular pull ring (16) is provided at one end of the quantity display rod (11) away from the bolt head (2).

9. A high performance bolt according to claim 1, characterized in that: The refueling hole is provided with a removable elastic sealing member (17) which can keep the oil storage cavity (3) in a sealed state.

Images