A combined self-reaction force anti-loosening bolt for petroleum machinery

Abstract

The present invention discloses a combined self-reaction force anti-loosening bolt for petroleum machinery, which includes a screw rod. A nut is fixedly installed at the bottom end of the screw rod. A number of limiting grooves are slidably connected to both sides of the screw rod. A fixing block is slidably connected inside the number of limiting grooves. Two first springs are fixedly installed on one side of the fixing block. One ends of the two first springs are fixedly connected to the inner side wall of the screw rod. A transition rod is rotatably connected inside the fixing block. A first bevel gear is fixedly installed at one end of the transition rod. In the specific self-reaction force anti-loosening bolt of this solution, through the sliding of the fixing block inside the screw rod, the nut rotated to a suitable position can be stabilized through the action of the fixing block. When the fixing rod moves to a suitable position, the fixing rod can rotate inside the fixing block, so that the fixing rod can be connected to the fixing groove at the top of the next fixing block, so that the fixing blocks on both sides of the nut play a role in preventing the nut from coming off.

Description

Technical Field

[0001] The present invention relates to the technical field of petroleum machinery, and specifically relates to a combined self-reaction force anti-loosening bolt for petroleum machinery. Background Technique

[0002] A bolt is a type of fastener composed of two parts: a head and a screw rod (a cylinder with external threads). It needs to be used in conjunction with a nut to fasten and connect two parts with through holes, and is an anchoring component that anchors the connected parts to a hardened concrete base material. A combined self-reaction force anti-loosening bolt can use its own structure to perform reverse fixing and loosening effects when the bolt loosens. However, the traditional self-reaction force anti-loosening bolt still has the following defects:

[0003] In the use of traditional self-reaction force anti-loosening bolts, since bolts are mechanical structures used to fix and stabilize between two structures, traditional self-reaction force anti-loosening bolts cannot structurally stabilize the bolts themselves after fixing the two structures to prevent the nut from moving outward from the surface of the bolt. Moreover, after the external surface of the traditional self-reaction force anti-loosening bolt becomes thread stripped, it will become detached, thereby reducing the structural fixing effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a combined self-reaction force anti-loosening bolt for petroleum machinery to solve the problem that traditional self-reaction force anti-loosening bolts cannot structurally stabilize the bolts themselves after fixing the two structures to prevent the nut from moving outward from the surface of the bolt as proposed in the above background technique.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A combined self-reaction force anti-loosening bolt for petroleum machinery, including a screw rod, a nut is fixedly installed at the bottom end of the screw rod, several limiting grooves are slidably connected to both sides of the screw rod, fixing blocks are slidably connected inside several of the limiting grooves, two first springs are fixedly installed on one side of the fixing block, and one ends of the two first springs are fixedly connected to the inner side wall of the screw rod. A transition rod is rotatably connected inside the fixing block, a first bevel gear is fixedly installed at one end of the transition rod, a fixing rod is threadedly connected inside the fixing block, a second bevel gear is threadedly connected to the outside of the fixing rod, and the outside of the first bevel gear is meshed with the outside of the second bevel gear. Three fixing grooves are opened at the top of the fixing block.

[0006] To make it more convenient for the fixing rod to move up and down, as a preferred embodiment of the present invention, a connecting rod is also rotatably connected inside the fixing block, a displacement rod is fixedly installed at one end of the connecting rod, the outside of the displacement rod is rotatably connected to the inner side wall of the fixing block, and linkage gears are fixedly installed on the outside of the other ends of the connecting rod and the transition rod.

[0007] In order to make the displacement rod rotate more easily inside the fixed block, as a preferred embodiment of the present invention, two fixed gears are respectively rotatably connected inside the screw rod and the nut. A transmission rack is sleeved outside the four fixed gears. The other end of the displacement rod is fixedly installed with a displacement gear, and the outside of the displacement gear is meshed with the outside of the transmission rack.

[0008] In order to make the main rotating rod rotate more easily, as a preferred embodiment of the present invention, a main rotating rod is rotatably connected inside the nut. The outside of the main rotating rod is fixedly connected to the inside of the fixed gear. The two ends of the main rotating rod are fixedly installed with limiting blocks, and the outside of the limiting blocks is slidably connected with an outer cover. The top of the outer cover is fixedly installed with a rotating frame.

[0009] In order to make the rotating frame rotate more easily, as a preferred embodiment of the present invention, a limiting ring is rotatably connected inside the nut. One side of the limiting ring is fixedly installed with a plurality of second springs. One end of the plurality of second springs is fixedly installed with a rotating ring, and one side of the rotating ring is fixedly connected to the bottom end of the rotating frame.

[0010] In order to make the fixed rod lift within a certain range, as a preferred embodiment of the present invention, a displacement groove is opened inside the fixed block. The top end of the fixed rod is fixedly installed with a lifting plate, and the outside of the lifting plate is slidably connected to the inside of the displacement groove.

[0011] In order to make the rotating frame fix more easily, as a preferred embodiment of the present invention, clamping grooves are opened on both sides of the nut, and the outside of the rotating frame is movably connected to the inside of the two clamping grooves.

[0012] In order to enable the overall bolt to fix other devices through the rotation of the nut, as a preferred embodiment of the present invention, a nut is threadedly connected to the outside of the screw rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1) By setting the sliding of the fixed block inside the screw rod, the nut rotated to the appropriate position can be stabilized through the action of the fixed block. When the fixed rod moves to the appropriate position in the fixed block, the fixed rod can rotate inside the fixed block, so that the fixed rod can be connected to the fixed groove at the top of the next fixed block, thereby enabling the fixed blocks on both sides of the nut to play a role in preventing the nut from coming off;

[0015] 2) By driving the main rotating rod to rotate inside the nut through the provided rotating frame, the fixed gear can drive the transmission rack to transmit, so that several linkage gears inside the transmission rack can rotate. And through the functions of the provided connecting rod and transition rod, the fixed rod can move more conveniently in the fixed block in terms of height, thereby improving the stability of the overall self-locking anti-loosening bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the inside of the screw rod of the present invention;

[0018] Figure 3 It is a schematic structural diagram of the fixed gear of the present invention;

[0019] Figure 4 It is a schematic structural diagram of the displacement gear of the present invention;

[0020] Figure 5 It is a schematic structural diagram of the limit ring of the present invention;

[0021] Figure 6 It is a schematic structural diagram of the inside of the fixed block of the present invention;

[0022] Figure 7 It is a schematic structural diagram of the lifting plate of the present invention;

[0023] Figure 8 It is a schematic structural diagram of the inside of the nut of the present invention.

[0024] In the figure: 1, screw rod; 2, nut; 3, limit groove; 4, fixed block; 5, first spring; 6, transition rod; 7, first bevel gear; 8, fixed rod; 9, second bevel gear; 10, fixed groove; 11, connecting rod; 12, displacement rod; 13, linkage gear; 14, fixed gear; 15, transmission rack; 16, displacement gear; 17, main rotating rod; 18, limit block; 19, outer cover; 20, rotating frame; 21, limit ring; 22, second spring; 23, rotating ring; 24, displacement groove; 25, lifting plate; 26, card slot; 27, nut. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1-8, the present invention provides a technical solution:

[0027] A combined self-reaction force anti-loosening bolt for petroleum machinery, including a screw rod 1. A nut 2 is fixedly installed at the bottom end of the screw rod 1. A number of limiting grooves 3 are slidably connected to both sides of the screw rod 1. A fixing block 4 is slidably connected inside the number of limiting grooves 3. Two first springs 5 are fixedly installed on one side of the fixing block 4. One ends of the two first springs 5 are fixedly connected to the inner side wall of the screw rod 1. A transition rod 6 is rotatably connected inside the fixing block 4. A first bevel gear 7 is fixedly installed at one end of the transition rod 6. A fixing rod 8 is threadedly connected inside the fixing block 4. A second bevel gear 9 is threadedly connected to the outer side of the fixing rod 8. The outer sides of the first bevel gear 7 and the second bevel gear 9 are engaged. Three fixing grooves 10 are formed at the top of the fixing block 4.

[0028] During specific use, when using this self-reaction force anti-loosening bolt, first, the screw rod 1 can be inserted through an object to be fixed, and then by rotating the nut 27 on the outer side of the screw rod 1, the nut 27 can be moved to a position in contact with the fixed object. When the nut 27 rotates on the outer side of the screw rod 1, the nut 27 can cause the fixing block 4 to slide inside the limiting groove 3. When the fixing block 4 on the outer side of the screw rod 1 is not blocked by the nut 27 or other structures, it can slide outward inside the limiting groove 3 under the action of the first spring 5. When the nut 27 rotates to a suitable position, the transition rod 6 can be rotated inside the fixing block 4, so that through the action of the first bevel gear 7 and the second bevel gear 9, the fixing rod 8 can rotate following the transition rod 6. While the second bevel gear 9 rotates, the fixing rod 8 can rotate following the second bevel gear 9 and move downward while rotating inside the fixing block 4 through the action of the fixing block 4, so that through the action of the fixing rod 8, it can be engaged with the fixing groove 10 at the top of the next fixing block 4, so that the fixing block 4 can be fixed at a suitable position on the outer side of the screw rod 1, and then the sliding of the nut 27 on the outer side of the screw rod 1 can be prevented.

[0029] In this embodiment: A connecting rod 11 is also rotatably connected inside the fixing block 4. A displacement rod 12 is fixedly installed at one end of the connecting rod 11. The outer side of the displacement rod 12 is rotatably connected to the inner side wall of the fixing block 4. Linkage gears 13 are fixedly installed on the outer sides of the other ends of the connecting rod 11 and the transition rod 6.

[0030] During specific use, when the transition rod 6 needs to be rotated, the connecting rod 11 can be rotated inside the fixing block 4 by rotating the displacement rod 12, and then through the action of the linkage gears 13, the transition rod 6 and the connecting rod 11 can be rotated synchronously, and then the fixing rod 8 can be rotated and lifted while rotating inside the fixing block 4.

[0031] In this embodiment: Two fixed gears 14 are respectively rotatably connected inside the screw rod 1 and the nut 2. A transmission rack 15 is sleeved outside the four fixed gears 14. The other end of the displacement rod 12 is fixedly installed with a displacement gear 16, and the outside of the displacement gear 16 is meshed with the outside of the transmission rack 15.

[0032] During specific use, when the fixed block 4 moves to a suitable position through the nut 27 or the first spring 5, the two fixed gears 14 can rotate inside the screw rod 1 and the nut 2 respectively, so as to drive the transmission rack 15 to transmit. Since the displacement gear 16 is meshed with the transmission rack 15, when the transmission rack 15 transmits, it can drive the displacement gear 16 to rotate, and then the displacement rod 12 can be driven by the displacement gear 16 to rotate inside the fixed block 4.

[0033] In this embodiment: A main rotating rod 17 is rotatably connected inside the nut 2. The outside of the main rotating rod 17 is fixedly connected to the inside of the fixed gear 14. Two limit blocks 18 are fixedly installed at both ends of the main rotating rod 17. The outside of the limit blocks 18 is slidably connected with an outer cover 19, and the top of the outer cover 19 is fixedly installed with a rotating frame 20.

[0034] During specific use, when the fixed gear 14 needs to rotate, the rotating frame 20 can rotate on both sides of the nut 2, so that the outer cover 19 can drive the limit blocks 18 inside to rotate with the main rotating rod 17. When the main rotating rod 17 does not need to rotate, the rotating frame 20 can drive the outer cover 19 to be pushed into the nut 2, so that the rotating frame 20 can be fixed by being stuck on both sides of the nut 2.

[0035] In this embodiment: A limit ring 21 is rotatably connected inside the nut 2. A plurality of second springs 22 are fixedly installed on one side of the limit ring 21. One ends of the plurality of second springs 22 are fixedly installed with a rotating ring 23, and one side of the rotating ring 23 is fixedly connected to the bottom end of the rotating frame 20.

[0036] During specific use, when the main rotating rod 17 needs to be rotated through the rotating frame 20, the rotating frame 20 and the rotating ring 23 can move outward, so that the rotating frame 20 can drive the main rotating rod 17 to rotate. At the same time, the limit ring 21 and the rotating ring 23 can rotate synchronously with the rotating frame 20. After the rotating frame 20 finishes rotating, the rotating frame 20 can move into the nut 2 under the pulling force of the second spring 22 and be fixed inside the nut 2.

[0037] In this embodiment: A displacement groove 24 is formed inside the fixed block 4. The top end of the fixed rod 8 is fixedly installed with a lifting plate 25, and the outside of the lifting plate 25 is slidably connected to the inside of the displacement groove 24.

[0038] During specific use, when the fixed rod 8 rotates and moves up and down inside the fixed block 4, the lifting plate 25 can follow the fixed rod 8 to rotate and move up and down inside the displacement groove 24, and the displacement groove 24 can limit the fixed rod 8 to prevent the fixed rod 8 from detaching from the fixed block 4 after rotation.

[0039] In this embodiment: Card slots 26 are provided on both sides of the nut 2, and the inside of the two card slots 26 is movably connected to the outside of the rotating frame 20.

[0040] During specific use, when it is not necessary for the rotating frame 20 to rotate, the rotating frame 20 can be clamped through the card slots 26, which plays a role in fixing the rotating frame 20.

[0041] In this embodiment: A nut 27 is threadedly connected to the outside of the screw rod 1.

[0042] During specific use, the nut 27 rotates on the outside of the screw rod 1 according to the height or thickness of the object to be fixed, so as to be able to fix the two objects to be fixed.

[0043] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A combined self-reaction force anti-loosening bolt for petroleum machinery, comprising a screw rod (1), characterized in that, A nut (2) is fixedly installed at the bottom end of the screw rod (1). A number of limiting grooves (3) are slidably connected to both sides of the screw rod (1). A fixing block (4) is slidably connected inside the number of limiting grooves (3). Two first springs (5) are fixedly installed on one side of the fixing block (4). One ends of the two first springs (5) are fixedly connected to the inner side wall of the screw rod (1). A transition rod (6) is rotatably connected inside the fixing block (4). A first bevel gear (7) is fixedly installed at one end of the transition rod (6). A fixing rod (8) is threadedly connected inside the fixing block (4). A second bevel gear (9) is threadedly connected to the outside of the fixing rod (8). The outside of the first bevel gear (7) is in meshing connection with the outside of the second bevel gear (9). Three fixing grooves (10) are formed at the top of the fixing block (4). A connecting rod (11) is also rotatably connected inside the fixing block (4). A displacement rod (12) is fixedly installed at one end of the connecting rod (11). The outside of the displacement rod (12) is rotatably connected to the inner side wall of the fixing block (4). Linkage gears (13) are fixedly installed on the outside of the other ends of the connecting rod (11) and the transition rod (6). Two fixing gears (14) are respectively rotatably connected inside the screw rod (1) and the nut (2). A transmission rack (15) is sleeved on the outside of the four fixing gears (14). A displacement gear (16) is fixedly installed at the other end of the displacement rod (12). The outside of the displacement gear (16) is in meshing connection with the outside of the transmission rack (15). A main rotating rod (17) is rotatably connected inside the nut (2). The outside of the main rotating rod (17) is fixedly connected to the inside of the fixing gear (14). Limiting blocks (18) are fixedly installed at both ends of the main rotating rod (17). The outside of the limiting blocks (18) is slidably connected to an outer cover (19). A rotating frame (20) is fixedly installed at the top end of the outer cover (19).

2. The combined self-reaction force anti-loosening bolt for petroleum machinery according to claim 1, wherein: A limiting ring (21) is rotatably connected inside the nut (2). A number of second springs (22) are fixedly installed on one side of the limiting ring (21). A rotating ring (23) is fixedly installed at one ends of the number of second springs (22). One side of the rotating ring (23) is fixedly connected to the bottom end of the rotating frame (20).

3. The combined self-reaction force anti-loosening bolt for petroleum machinery according to claim 1, characterized in that: A displacement groove (24) is formed inside the fixing block (4). A lifting plate (25) is fixedly installed at the top end of the fixing rod (8). The outside of the lifting plate (25) is slidably connected to the inside of the displacement groove (24).

4. The combined self-reaction force anti-loosening bolt for petroleum machinery according to claim 3, characterized in that: Card slots (26) are formed on both sides of the nut (2). The outside of the rotating frame (20) is movably connected to the inside of the two card slots (26).

5. The combined self-reaction force anti-loosening bolt for petroleum machinery according to claim 1, wherein: A nut (27) is threadedly connected to the outside of the screw rod (1).

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