Sliding groove type anti-loose hexagon bolt for nuclear power station

Abstract

The utility model relates to the technical field of assembling and fastening, and discloses a sliding groove type anti-loose hexagon bolt for a nuclear power station, first tooth plates on the two sides are connected to the two sides of the top of a limiting plate, telescopic pipes are evenly connected to the interior of a sliding groove, and supporting plates are connected to the top ends of the telescopic ends in the telescopic pipes on the two sides; springs are connected to the interiors of the telescopic pipes on the two sides, stabilizing plates are connected to the two sides of an inner cavity of the sliding groove, stabilizing grooves are formed in the two sides of the outer wall of the limiting plate, the stabilizing plates on the two sides are matched with the stabilizing grooves in the two sides, and second tooth plates are connected to the two sides of the top of the inner cavity of the sliding groove. According to the sliding groove type anti-loosening hexagon bolt for the nuclear power station, the limiting plates on the outer wall of the hexagon bolt are aligned with the stabilizing plates on the two sides and pushed in, the hexagon bolt slides into the sliding groove, the stabilizing plates on the two sides are located in the stabilizing grooves in the two sides correspondingly, and the hexagon bolt is prevented from deviating in the sliding process.

Description

Technical Field

[0001] This utility model belongs to the field of assembly and fastening technology, specifically a grooved anti-loosening hexagonal bolt for nuclear power plants. Background Technology

[0002] Slotted anti-loosening bolts are high-reliability fasteners used in critical facilities such as nuclear power plants. They are designed to prevent bolts from loosening due to vibration or thermal cycling, ensuring the safe operation of equipment. When the bolt is located inside the slot, after it is moved to the required installation position, some bolts are easily moved by collisions with external objects. This requires workers to move the bolts back to their installation positions, making it inconvenient for workers to control the position of the bolts. Therefore, improvements are needed to address the current situation. Utility Model Content

[0003] In response to the above situation and to overcome the shortcomings of the existing technology, this utility model provides a grooved anti-loosening hexagonal bolt for nuclear power plants. It effectively solves the problem that grooved anti-loosening bolts are high-reliability fasteners used in critical facilities such as nuclear power plants, designed to prevent bolts from loosening due to vibration or thermal cycling, and to ensure the safe operation of equipment. When the bolt is located inside the groove, after it is moved to the required installation and fixing position, some bolts are easily moved by collisions with external objects, which requires the staff to move the bolts again to the installation position. Therefore, it is inconvenient for the staff to limit the position of the bolts.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sliding groove type anti-loosening hexagonal bolt for nuclear power plants, comprising a sliding groove, a hexagonal bolt, and a limiting plate, wherein the limiting plate is connected to the outer wall of the hexagonal bolt, the limiting plate is matched with the sliding groove, a positioning component is provided inside the sliding groove, and a stabilizing component is provided on the outer wall of the hexagonal bolt;

[0005] The positioning component includes a first toothed plate, with both sides of the first toothed plate connected to the top of the limiting plate. Telescopic tubes are evenly connected inside the slide groove. Support plates are connected to the top ends of the telescopic tubes on both sides. Springs are connected inside the telescopic tubes on both sides. Stabilizing plates are connected to both sides of the inner cavity of the slide groove. Stabilizing grooves are provided on both sides of the outer wall of the limiting plate. The stabilizing plates on both sides match the stabilizing grooves on both sides. Second toothed plates are connected to both sides of the top of the inner cavity of the slide groove. Connecting plates are connected to both sides inside the slide groove. Slide plates are connected to the interior of both connecting plates on both sides.

[0006] Preferably, the telescopic tubes on both sides are arranged opposite to each other, and there are no fewer than six sets of telescopic tubes on both sides.

[0007] Preferably, the top of the two sides of the sliding plate is connected with an anti-slip pad.

[0008] Preferably, the top of the support plate is connected to a protruding plate, and the bottom of the hexagonal bolt is provided with a groove, the protruding plate matching the groove.

[0009] Preferably, the stabilizing component includes a first washer disposed on the outer wall of the hexagonal bolt, a second washer disposed on the outer wall of the hexagonal bolt, the second washer being located on top of the first washer, the opposite sides of the first washer and the second washer being provided with toothed surfaces that mesh with each other, a nut being screwed onto the outer wall of the hexagonal bolt, and the outer walls of the first washer and the second washer being provided with serrated surfaces.

[0010] Preferably, pointers are connected to both sides of the outer wall of the limiting plate, and scales are provided on both sides of the outer wall of the slide groove, with the pointers on both sides located on one side of the scales on both sides.

[0011] Preferably, both sides of the outer wall of the chute are connected to fixing plates, and bolt mounting holes are provided inside the fixing plates on both sides.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. By aligning the limiting plate on the outer wall of the hexagonal bolt with the two side stabilizing plates and pushing it in, the hexagonal bolt slides into the inside of the groove, so that the two side stabilizing plates are located inside the two side stabilizing grooves respectively, preventing the hexagonal bolt from shifting during the sliding process;

[0014] 2. When the hexagonal bolt slides into the groove, its body is located at the top of the support plate. At this time, the second toothed plate and the first toothed plate are engaged. When it is necessary to move the position of the hexagonal bolt, press the bolt body down to move it down, so that the second toothed plate and the first toothed plate are disengaged. At this time, the bolt body can be moved smoothly. After moving to the desired position, release the hexagonal bolt. At this time, the springs on both sides rebound and push the limit plate up, so that the second toothed plate and the first toothed plate are engaged, fixing the position of the hexagonal bolt. Then, the sliding plates on both sides can be pushed to move them under the support plate to prevent the support plate from moving, thereby further fixing the hexagonal bolt and preventing the hexagonal bolt from moving due to collision, making it easier for workers to carry out installation work.

[0015] 3. By fitting the first and second washers onto the hexagonal bolt, and then screwing the nut onto the hexagonal bolt, the nut presses down on the second washer and causes it to rotate, so that the second washer and the first washer are in a fully engaged state. When the installed connector is subjected to vibration and tends to loosen, the relative misalignment of the inner tooth surfaces of the first and second washers causes friction, and the upper and lower engagement of the first and second washers tightly fixes the nut, so that the connection generates a high resistance to withstand the vibration force, thereby effectively achieving the anti-loosening effect. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form 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 thereof.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the first toothed plate structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting plate structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the support plate structure of this utility model.

[0022] In the diagram: 100, slide groove; 200, hex bolt; 201, limiting plate; 202, first toothed plate; 203, telescopic tube; 204, support plate; 205, spring; 206, stabilizing plate; 207, stabilizing groove; 208, second toothed plate; 209, connecting plate; 210, sliding plate; 211, protruding plate; 212, groove; 300, first washer; 301, second washer; 302, nut; 303, pointer; 304, ruler; 305, serrated surface; 306, fixing plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 A sliding anti-loosening hexagonal bolt for nuclear power plants includes a sliding groove 100, a hexagonal bolt 200, and a limiting plate 201. The limiting plate 201 is fixedly connected to the outer wall of the hexagonal bolt 200 and matches the sliding groove 100. A positioning component is provided inside the sliding groove 100, and a stabilizing component is provided on the outer wall of the hexagonal bolt 200.

[0025] The positioning component includes a first toothed plate 202, with both first toothed plates 202 fixedly connected to the top of the limiting plate 201 on both sides. Telescopic tubes 203 are uniformly fixedly connected inside the slide groove 100. Support plates 204 are fixedly connected to the top ends of the telescopic ends inside the telescopic tubes 203 on both sides. Springs 205 are fixedly connected inside the telescopic tubes 203 on both sides. Stabilizing plates 206 are fixedly connected to both sides of the inner cavity of the slide groove 100. Stabilizing grooves 207 are formed on both sides of the outer wall of the limiting plate 201, and the stabilizing plates 206 on both sides align with the stabilizing grooves 207 on both sides. The hexagonal bolt 200 is fitted to the slide groove 100 to make its back-and-forth movement more stable. Second toothed plates 208 are fixedly connected to both sides of the top of the inner cavity of the slide groove 100, and these second toothed plates 208 mesh with the first toothed plate 202. Connecting plates 209 are fixedly connected to both sides of the inner cavity of the slide groove 100, and sliding plates 210 are movably connected inside both connecting plates 209. These sliding plates 210 can move back and forth within the connecting plates 209. The hexagonal bolt 200 is then aligned with the limiting plate 201 on its outer wall, which is then aligned with the stabilizing plates 206 on both sides. Push in, causing the hexagonal bolt 200 to slide into the groove 100, so that the two side stabilizing plates 206 are respectively located inside the two side stabilizing grooves 207, preventing the hexagonal bolt 200 from shifting during sliding. When the hexagonal bolt 200 slides into the groove 100, its body is located on top of the support plate 204. At this time, the second toothed plate 208 and the first toothed plate 202 are in a meshing state. When it is necessary to move the position of the hexagonal bolt 200, press down on the bolt body to move it down, so that the second toothed plate 208 disengages from the first toothed plate 202. In the engaged state, the bolt body can move smoothly. After moving to the desired position, the hexagonal bolt 200 is released. At this time, the springs 205 on both sides rebound and push the limiting plate 201 upward, so that the second toothed plate 208 engages with the first toothed plate 202, fixing the position of the hexagonal bolt 200. Then, the sliding plates 210 on both sides can be pushed to move them below the support plate 204 to prevent the support plate 204 from moving, thereby further fixing the hexagonal bolt 200 and preventing the hexagonal bolt 200 from moving due to collision, making it easier for workers to carry out installation work.

[0026] The telescopic tubes 203 on both sides are arranged opposite each other, and there are no less than six sets of telescopic tubes 203 on both sides, so that the support plate 204 moves up and down more stably and the support plate 204 is subjected to stable force.

[0027] Anti-slip pads are fixedly connected to the top of the two side slides 210, which can increase the friction between the slide 210 and the support plate 204 and prevent the slide 210 from sliding off the bottom of the support plate 204.

[0028] A protruding plate 211 is fixedly connected to the top of the support plate 204, and a groove 212 is provided at the bottom of the hexagonal bolt 200. The protruding plate 211 matches the groove 212, so that the hexagonal bolt 200 can slide more stably on the top of the support plate 204.

[0029] The stabilizing component includes a first washer 300, which is fitted onto the outer wall of a hexagonal bolt 200. A second washer 301 is fitted onto the outer wall of the hexagonal bolt 200, and the second washer 301 is located on top of the first washer 300. Both the first washer 300 and the second washer 301 have toothed surfaces on opposite sides that interlock. A nut 302 is screwed onto the outer wall of the hexagonal bolt 200. Both the outer walls of the first washer 300 and the second washer 301 have serrated surfaces 305. The stabilizing component is formed by fitting the first washer 300 and the second washer 301 onto the outer wall of the hexagonal bolt 200. Then, screw the nut 302 onto the hex bolt 200, causing it to press down on the second washer 301 and rotate it, so that the second washer 301 and the first washer 300 are fully engaged. When the installed connector is subjected to vibration and tends to loosen, the relative misalignment of the inner tooth surfaces of the first washer 300 and the second washer 301 causes friction, and the upper and lower engagement of the first washer 300 and the second washer 301 tightly fixes the nut 302, so that the connection has a high resistance to withstand the vibration force, thereby effectively achieving the anti-loosening effect.

[0030] Pointers 303 are fixedly connected to both sides of the outer wall of the limiting plate 201, and scales 304 are opened on both sides of the outer wall of the slide groove 100. The pointers 303 on both sides are located on one side of the scales 304 on both sides, so as to facilitate the workers to move the hexagonal bolts 200 more accurately.

[0031] Both sides of the outer wall of the slide 100 are fixedly connected to the fixing plate 306. The fixing plate 306 on both sides is provided with bolt mounting holes, so as to facilitate the workers to fix and install the slide 100.

[0032] Working principle: By aligning the limiting plate 201 on the outer wall of the hexagonal bolt 200 with the two side stabilizing plates 206 and pushing it in, the hexagonal bolt 200 slides into the groove 100. This positions the two side stabilizing plates 206 within the two side stabilizing grooves 207, preventing the hexagonal bolt 200 from shifting during sliding. When the hexagonal bolt 200 slides into the groove 100, its body is located at the top of the support plate 204. At this time, the second toothed plate 208 is engaged with the first toothed plate 202. When it is necessary to move the hexagonal bolt 200, the bolt body is pressed downwards to disengage the second toothed plate 208 from the first toothed plate 202, allowing the bolt body to move smoothly. After moving to the desired position, the hexagonal bolt 200 is released. The springs 205 on both sides rebound, pushing the limiting plate 201 upwards, causing the second toothed plate 208 to engage with the first toothed plate 202, thus stabilizing the hexagonal bolt. The position of 200 is fixed. Then, the two side slides 210 can be pushed to move it under the support plate 204 to prevent the support plate 204 from moving. This further fixes the hexagonal bolt 200 and prevents it from moving due to collision, making it easier for workers to install. By fitting the first washer 300 and the second washer 301 onto the hexagonal bolt 200, and then screwing the nut 302 onto the hexagonal bolt 200, the nut 302 is screwed down onto the hexagonal bolt 200, causing it to press down on the second washer 301 and rotate it, so that the second washer 301 and the first washer 300 are in a fully engaged state. When the installed connector is vibrated and tends to loosen, the relative misalignment of the inner tooth surfaces of the first washer 300 and the second washer 301 causes friction, and the upper and lower engagement of the first washer 300 and the second washer 301 tightly fixes the nut 302, so that the connection has a high resistance to withstand the vibration force, thereby effectively achieving the anti-loosening effect.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sliding groove type anti-loosening hexagonal bolt for nuclear power plants, comprising a sliding groove (100), a hexagonal bolt (200), and a limiting plate (201), characterized in that: The limiting plate (201) is connected to the outer wall of the hexagonal bolt (200). The limiting plate (201) matches the slide groove (100). The slide groove (100) is provided with a positioning component inside. The outer wall of the hexagonal bolt (200) is provided with a stabilizing component. The positioning component includes a first toothed plate (202), with both sides of the first toothed plate (202) connected to the top of the limiting plate (201). The interior of the slide groove (100) is uniformly connected with telescopic tubes (203). The top of the telescopic ends of the telescopic tubes (203) on both sides is connected with a support plate (204). The interior of the telescopic tubes (203) on both sides is connected with a spring (205). The interior of the slide groove (100) is connected with a stabilizing plate (206). The exterior of the limiting plate (201) is provided with stabilizing grooves (207) on both sides. The stabilizing plates (206) on both sides match the stabilizing grooves (207) on both sides. The top of the interior of the slide groove (100) is connected with a second toothed plate (208). The interior of the slide groove (100) is connected with a connecting plate (209). The interior of the connecting plates (209) on both sides is connected with a sliding plate (210).

2. The sliding groove type anti-loosening hexagonal bolt for nuclear power plants according to claim 1, characterized in that: The telescopic tubes (203) on both sides are arranged opposite to each other, and there are no fewer than six sets of telescopic tubes (203) on both sides.

3. The sliding groove type anti-loosening hexagonal bolt for nuclear power plants according to claim 1, characterized in that: The top of the two sides of the skateboard (210) is connected to an anti-slip pad.

4. The sliding groove type anti-loosening hexagonal bolt for nuclear power plants according to claim 1, characterized in that: The top of the support plate (204) is connected to a protruding plate (211), and the bottom of the hexagonal bolt (200) is provided with a groove (212), and the protruding plate (211) matches the groove (212).

5. A sliding groove type anti-loosening hexagonal bolt for nuclear power plants according to claim 1, characterized in that: The stabilizing component includes a first washer (300) disposed on the outer wall of the hexagonal bolt (200), a second washer (301) disposed on the outer wall of the hexagonal bolt (200), the second washer (301) being located on top of the first washer (300), the opposite sides of the first washer (300) and the second washer (301) being provided with toothed surfaces that mesh with each other, a nut (302) being screwed onto the outer wall of the hexagonal bolt (200), and the outer walls of the first washer (300) and the second washer (301) being provided with serrated surfaces (305).

6. A sliding groove type anti-loosening hexagonal bolt for nuclear power plants according to claim 1, characterized in that: The outer walls of the limiting plate (201) are connected to pointers (303) on both sides, and the outer walls of the slide groove (100) are provided with scales (304) on both sides. The pointers (303) on both sides are located on one side of the scales (304) on both sides.

7. A sliding groove type anti-loosening hexagonal bolt for nuclear power plants according to claim 1, characterized in that: Both sides of the outer wall of the slide (100) are connected to fixing plates (306), and bolt mounting holes are provided inside the fixing plates (306) on both sides.

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