Torsion nut and bolt with pushing structure
By using a structural design of torsion bolts and bearing columns, combined with limiting protrusions and anti-loosening components, the problem of fasteners loosening in vibration environments is solved, achieving more reliable connections and sealing protection in acidic and alkaline environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-14
AI Technical Summary
Existing fasteners are prone to loosening in vibration and shaking environments, causing the threads of the push bolts to twist or bend, affecting the reliability and safety of the connection.
The structural design employs torsion bolts and bearing columns to generate pure linear tensile force. Combined with limiting protrusions and anti-loosening components, it prevents bolts from loosening and uses sealing components to prevent corrosion in acidic and alkaline environments.
It improves the connection reliability of fasteners, prevents loosening, avoids bolt twisting or bending, enhances stability in vibration environments, and provides sealing protection in harsh environments.
Smart Images
Figure CN224120522U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fastener technology, and more specifically to a torque nut and bolt with a push-pull structure. Background Technology
[0002] Fasteners are widely used in the connection, clamping, and transmission structures of mechanical equipment. Torque nuts and bolts with a push-type mechanism are particularly effective in demanding applications requiring anti-loosening, impact resistance, and heavy loads. They are also relatively simple to use; by tightening several push-type screws around a large nut with a relatively small tightening torque, a large and precise axial push-type force is generated. The key feature of torque nuts and bolts is that they distribute the tightening force from a large main thread across multiple small push-type screws. Because the push-type screws are small, a small, ordinary torque wrench can be used to achieve the required preload. Therefore, this not only avoids the significant resource waste and safety risks associated with handling and using large, heavy, complex, and electrically powered tools, but also allows for simpler and faster tightening of large bolt connections.
[0003] In existing technologies, the jacking structure uses several jacking bolts that work together directly. During use, the preload force on the jacking bolts causes the threads of the jacking bolts to tighten, resulting in harmful twisting or bending and damage. Furthermore, when the mechanical equipment vibrates and shakes during operation, especially when it generates vibrations perpendicular to the nut's axis, the main nut may loosen, posing a risk. Summary of the Invention
[0004] To address the aforementioned problems, the purpose of this utility model is to provide a torque nut and bolt with a push-pull structure that features a simple structure, reliable connection, excellent anti-loosening properties, and avoids damage to the torque bolt.
[0005] According to one aspect of the present invention, a torque nut with a push-pull structure is provided, comprising: a nut body, a split push-pull component and a first pressure-bearing washer, wherein a first internal thread is provided in the nut body, and a plurality of first mounting holes are provided on the outer wall of the nut body, wherein the axial direction of the first mounting holes is consistent with the axial direction of the nut body, and the split push-pull component is installed in the first mounting holes and the bottom of the split push-pull component extends out of the first mounting holes to abut against the first pressure-bearing washer.
[0006] The split-type jacking component includes a torque bolt and a bearing column. The bearing column is disposed in a first mounting hole, and the torque bolt engages with the thread in the first mounting hole, pressing the bearing column towards a first bearing washer. By improving the existing single jacking bolt to a structure of a torque bolt and a bearing column, the generated preload is a purely linear tensile force, thus avoiding the damage caused by harmful torsion or bending resulting from ordinary thread tightening.
[0007] In some embodiments, a first limiting protrusion is provided at the bottom of the first mounting hole, which limits the downward movement of the pressure-bearing column. The inner wall of the first mounting hole is provided with a second internal thread. The distance the pressure-bearing column moves is limited by the first limiting protrusion.
[0008] In some embodiments, a second limiting protrusion is provided at the top of the pressure-bearing column. The outer diameter of the second limiting protrusion is smaller than the inner diameter of the second internal thread, and the outer diameter of the second limiting protrusion is larger than the inner diameter of the first limiting protrusion. This arrangement ensures that the pressure-bearing column is installed into the first mounting hole while also ensuring that its movement is limited by the first limiting protrusion.
[0009] In some implementations, an anti-loosening component is provided between the torque bolt and the nut body;
[0010] The anti-loosening components include an anti-loosening clip and a retaining spring. The anti-loosening clip engages with the top of the torque bolt, and the retaining spring secures the anti-loosening clip to the top of the torque bolt. The anti-loosening clip and retaining spring further prevent the torque bolt from loosening, which in turn prevents the nut body from loosening.
[0011] In some implementations, the axial height of the torque bolt is at least 0.1 times the axial height of the bearing column. Ensuring the length of the torque bolt facilitates better stress distribution.
[0012] In some embodiments, a threaded hole is provided at the center of the shaft that meshes with the nut body, and a first fixing plate is provided at the top of the torque bolt. The first fixing plate is pressed against the top of the torque bolt. The first fixing plate is connected to the shaft through the first fixing bolt to press the first fixing plate on the top of the bolt body. By pressing the top of the torque bolt with the first fixing plate, the torque bolt is further prevented from loosening due to vibration, and the fastening effect is more reliable.
[0013] In some embodiments, a first sealing component is provided on the top of the first fixing plate. The first sealing component includes: a first protective cover, a first anti-loosening gasket, a second anti-loosening gasket, a first sealing ring, a second sealing ring, a first grease filling port, and a third fixing bolt. The third fixing bolt passes through the first protective cover and connects to the top of the first fixing bolt, pressing the first protective cover against the top of the first fixing bolt. A first sealing ring is provided between the third fixing bolt and the first protective cover. A first anti-loosening gasket is provided between the third fixing bolt and the first protective cover, and the first anti-loosening gasket is pressed against the top of the first sealing ring. A second anti-loosening gasket is provided between the first fixing bolt and the first fixing plate. A second sealing ring is provided on the bottom outer side of the first pressure-bearing gasket and the inner side of the first protective cover. The first protective cover and the first pressure-bearing gasket form a sealed space. At least one first grease filling port is provided on the surface of the first protective cover, and the first grease filling port communicates with the sealed space.
[0014] Alternatively, the first sealing component may be a first elastic shield covering the outer wall of the first fixing bolt, the nut body, and the first bearing gasket. The presence of the first sealing component provides better sealing protection in acidic or alkaline working environments, preventing internal components from corroding.
[0015] According to one aspect of the present invention, a torsion bolt with a push-pull structure includes: a bolt body, a split push-pull component and a second pressure-bearing washer. An external thread is provided on the lower part of the bolt body, and a plurality of second mounting holes are provided on the upper part of the bolt body. The axial direction of the second mounting holes is consistent with the axial direction of the bolt body. The split push-pull component is installed in the second mounting holes and the bottom of the split push-pull component extends out of the second mounting holes to abut against the second pressure-bearing washer.
[0016] The split-type jacking component includes a torque bolt and a bearing column. The bearing column is disposed within a second mounting hole, and the torque bolt engages with the thread within the second mounting hole. The torque bolt presses the bearing column towards the second bearing washer. By improving the existing single jacking bolt structure to a structure of a torque bolt and a bearing column, the generated preload is a purely linear tensile force, thus avoiding the damage caused by harmful torsion or bending resulting from ordinary thread tightening.
[0017] In some embodiments, a third limiting protrusion is provided at the bottom of the second mounting hole, which limits the downward movement of the pressure-bearing column. The inner wall of the second mounting hole is provided with a third internal thread. The distance the pressure-bearing column moves is limited by the third limiting protrusion.
[0018] In some embodiments, a second limiting protrusion is provided at the top of the pressure-bearing column. The outer diameter of the second limiting protrusion is smaller than the inner diameter of the third internal thread, while the outer diameter of the second limiting protrusion is larger than the inner diameter of the third limiting protrusion. This arrangement ensures that the pressure-bearing column is installed into the second mounting hole while also ensuring that its movement is limited by the third limiting protrusion.
[0019] In some implementations, an anti-loosening component is provided between the torque bolt and the bolt body;
[0020] The anti-loosening components include an anti-loosening clip and a retaining spring. The anti-loosening clip engages with the top of the torque bolt, and the retaining spring restricts the anti-loosening clip to the top of the torque bolt. The anti-loosening clip and retaining spring further prevent the torque bolt from loosening, thereby preventing the bolt body from loosening.
[0021] The axial height of the torque bolt is at least 0.1 times the axial height of the bearing column. Ensuring the length of the torque bolt facilitates better stress distribution.
[0022] In some embodiments, a second fixing plate and a second fixing bolt are provided on the top of the bolt body. The second fixing plate is pressed against the top of the torque bolt, and the second fixing bolt presses the second fixing plate tightly against the top of the bolt body. By pressing the top of the torque bolt with the second fixing plate, the loosening of the torque bolt due to vibration is further prevented, and the tightening effect is more reliable.
[0023] In some embodiments, a second sealing component is provided on the top of the second fixing plate. The second sealing component includes: a second protective cover, a third anti-loosening gasket, a fourth anti-loosening gasket, a third sealing ring, a fourth sealing ring, a second grease filling port, and a fourth fixing bolt. The fourth fixing bolt passes through the second protective cover and is connected to the top of the second fixing bolt, pressing the second protective cover against the top of the second fixing bolt. A third sealing ring is provided between the fourth fixing bolt and the second protective cover. A third anti-loosening gasket is provided between the fourth fixing bolt and the second protective cover, and the third anti-loosening gasket is pressed against the top of the third sealing ring. A fourth anti-loosening gasket is provided between the second fixing bolt and the second fixing plate. A fourth sealing ring is provided on the bottom outer side of the second pressure-bearing gasket and the inner side of the second protective cover. The second protective cover and the second pressure-bearing gasket form a sealed space. At least one second grease filling port is provided on the surface of the second protective cover, and the second grease filling port communicates with the sealed space.
[0024] Alternatively, the second sealing component can be a second elastic shield covering the outer wall of the second fixing bolt, the bolt body, and the second bearing gasket. The inclusion of the second sealing component provides better sealing protection in acidic or alkaline working environments, preventing internal components from corroding.
[0025] This invention offers advantages over existing technologies, including simple structure, reliable connection, excellent anti-loosening performance, and prevention of damage to torque bolts. By modifying the existing single push bolt into a structure of torque bolt and bearing column, the generated preload is a pure linear tensile force, thus avoiding the harmful torsion or bending damage caused by ordinary thread tightening. The first and third limiting protrusions limit the downward movement distance of the bearing column. Anti-loosening clips and retaining springs further prevent the torque bolt from loosening, which could lead to loosening of the nut or bolt body. The length of the torque bolt is ensured to facilitate better force distribution. The second fixing plate presses the top of the torque bolt, further preventing it from loosening due to vibration, resulting in a more reliable tightening effect. The placement of the first and second sealing components provides better sealing protection in acidic or alkaline working environments, preventing internal components from corroding. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the structure of the torque nut with the push-pull structure of this utility model;
[0027] Figure 2 This is a cross-sectional view of the torque nut with a pushing structure according to this utility model;
[0028] Figure 3 This is a schematic diagram of another embodiment of the torque nut with a pushing structure of this utility model;
[0029] Figure 4 This is a schematic diagram of the structure of the first sealing component of the torque nut with a push-pull structure according to this utility model;
[0030] Figure 5 yes Figure 4 A magnified view of part A in the middle;
[0031] Figure 6 yes Figure 4 A magnified view of part B in the middle section;
[0032] Figure 7 This is a schematic diagram of another embodiment of the first sealing component of the torque nut with a push-pull structure of this utility model;
[0033] Figure 8 This is a schematic diagram of the structure of the torque bolt with the push-pull structure of this utility model;
[0034] Figure 9 This is a cross-sectional view of the torsion bolt with a jacking structure according to this utility model;
[0035] Figure 10 This is a schematic diagram of the structure of the second sealing component of the torque bolt with a pushing structure according to this utility model;
[0036] Figure 11 yes Figure 9 A magnified view of part A in the middle;
[0037] Figure 12 yes Figure 9 A magnified view of part B in the middle section;
[0038] Figure 13 This is a schematic diagram of another embodiment of the second sealing component of the torque bolt with a push-up structure of this utility model. Detailed Implementation
[0039] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.
[0040] In the description of this utility model, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components. They can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the terms according to the specific circumstances.
[0041] like Figure 1 and Figure 2 As shown, the torque nut with a pushing structure of the present invention includes: a nut body 1, a split pushing component 2 and a first pressure-bearing washer 3. The nut body 1 is provided with a first internal thread 11, and the outer wall of the nut body 1 is provided with a plurality of first mounting holes 12. The axial direction of the first mounting holes 12 is consistent with the axial direction of the nut body 1. The split pushing component 2 is installed in the first mounting holes 12 and the bottom of the split pushing component 2 extends out of the first mounting holes 12 to abut against the first pressure-bearing washer 3.
[0042] The split-type jacking component 2 includes a torque bolt 21 and a pressure-bearing column 22. The pressure-bearing column 22 is disposed in the first mounting hole 12, and the torque bolt 21 engages with the thread in the first mounting hole 12, pressing the pressure-bearing column 22 towards the first pressure-bearing washer 3. By improving the existing single jacking bolt to a structure of torque bolt 21 and pressure-bearing column 22, the generated preload is a pure linear tensile force, thus avoiding the damage caused by harmful twisting or bending resulting from ordinary thread tightening. Mechanical vibration, especially when the present invention is subjected to simultaneous axial and radial vibration, can easily cause the integrated component to loosen. This patent application utilizes the frictional force between the torque bolt 21 and the pressure-bearing column 22 to counteract the axial force, while the existing integrated component directly uses the torque bolt 21 to bear the axial force. Excessive axial force can cause bending, cracking, or even breakage, as well as thread failure and stripping, leading to loosening.
[0043] A first limiting protrusion 13 is provided at the bottom of the first mounting hole 12, which limits the downward movement of the pressure-bearing column 22. The inner wall of the first mounting hole 12 is provided with a second internal thread 14. The distance the pressure-bearing column 22 can move is limited by the first limiting protrusion 13.
[0044] The top of the pressure-bearing column 22 is provided with a second limiting protrusion 23. The outer diameter of the second limiting protrusion 23 is smaller than the inner diameter of the second internal thread 14, and the outer diameter of the second limiting protrusion 23 is larger than the inner diameter of the first limiting protrusion 13. This arrangement ensures that the pressure-bearing column 22 can be installed into the first mounting hole 12 and that its movement position is limited by the first limiting protrusion 13.
[0045] An anti-loosening component 4 is provided between the torque bolt 21 and the nut body 1;
[0046] The anti-loosening component 4 includes an anti-loosening clip 41 and a retaining spring 42. The anti-loosening clip 41 engages with the top of the torque bolt 21, and the retaining spring 42 secures the anti-loosening clip 41 to the top of the torque bolt 21. The anti-loosening clip 41 and the retaining spring 42 further prevent the torque bolt 21 from loosening, thereby preventing the nut body 1 from loosening.
[0047] The anti-loosening clip 41 has several limiting holes along its circumference, and each limiting hole has several toothed protrusions that engage with the outer hexagonal corner of the top of the torque bolt 21 to prevent the torque bolt 21 from rotating. Furthermore, a slot is cut into the top of the torque bolt 21 to install a retaining spring 42. The retaining spring 42 fits against the anti-loosening clip 41 to prevent vibration from causing the anti-loosening clip 41 to detach from the torque bolt 21. By limiting the top of the torque bolt 21, vibration is prevented from causing the torque bolt 21 to rotate upwards and loosen.
[0048] The axial height of the torque bolt 21 is at least 0.1 times the axial height of the bearing column 22. Ensuring the length of the torque bolt 21 facilitates better stress distribution on the torque bolt 21.
[0049] like Figure 3 As shown, a threaded hole is provided at the center of the shaft that meshes with the nut body 1. A first fixing plate 91 is provided on the top of the torque bolt 21. The first fixing plate 91 is pressed against the top of the torque bolt 21. The first fixing plate 91 is connected to the shaft through the first fixing bolt 92, which presses the first fixing plate 91 against the top of the bolt body 21. By pressing the top of the torque bolt 21 with the first fixing plate 91, the torque bolt 21 is further prevented from loosening due to vibration, and the fastening effect is more reliable.
[0050] like Figure 4 , Figure 5 and Figure 6As shown, a first sealing component 101 is provided on the top of the first fixing plate 91. The first sealing component 101 includes: a first protective cover 1011, a first anti-loosening gasket 1012, a second anti-loosening gasket 1013, a first sealing ring 1014, a second sealing ring 1015, a first grease filling port 1016, and a third fixing bolt 1017. The third fixing bolt 1017 passes through the first protective cover 1011 and connects to the top of the first fixing bolt 92, pressing the first protective cover 1011 against the top of the first fixing bolt 92. A first sealing ring 1014 is provided between the third fixing bolt 1017 and the first protective cover 1011. A first anti-loosening gasket 1012 is provided between the third fixing bolt 1017 and the first protective cover 1011, and the first anti-loosening gasket 1012 is pressed against the top of the first sealing ring 1014. A second anti-loosening washer 1013 is provided between a fixing bolt 92 and a first fixing plate 91. A second sealing ring 1015 is provided between the bottom outer side of the first pressure bearing washer 3 and the inner side of the first protective cover 1011. The first protective cover 1011 and the first pressure bearing washer 3 form a sealed space. The surface of the first protective cover 1011 is provided with at least one first grease filling port 1016, which communicates with the sealed space. In essence, the sealed space is closed by the first sealing ring 1014 between the first protective cover 1011 and the third fixing bolt 1017 and the second sealing ring 1015 between the bottom outer side of the first pressure bearing washer 3 and the inner side of the first protective cover 1011. The sealed space is then filled with grease through the first grease filling port 1016 to further prevent the internal components from contacting the outside world and to prevent corrosion. The first protective cover 1011 is made of corrosion-resistant materials such as stainless steel or titanium alloy, ensuring that internal components do not rust and can operate normally even in harsh acidic, alkaline, or corrosive environments. The first anti-loosening gasket 1012 and the second anti-loosening gasket 1013 are male and female anti-loosening gaskets. The first sealing ring 1014 and the second sealing ring 1015 are corrosion-resistant and acid / alkali-resistant O-rings. Of course, depending on the available space, the first grease filling port 1016 can be located at any position on the surface of the first protective cover 1011.
[0051] like Figure 7 As shown, the first sealing component 101 is a first elastic protective cover 1018 covering the outer wall of the first fixing bolt 92, the nut body 1, and the first pressure-bearing washer 3. A first anti-loosening washer 1012 is provided between the third fixing bolt 1017 and the first protective cover 1011. The first sealing component 101 provides better sealing protection in acidic and alkaline working environments, preventing internal components from being corroded. The first elastic protective cover 1018 can be rubber or other elastic materials with anti-corrosion properties. Of course, the overall sealing effect is lower than the previous technical solution, but it can be used in environments with less severe acidic, alkaline, and corrosive conditions.
[0052] like Figure 8 and Figure 9As shown, the torque bolt 21 with a push-pull structure of the present invention includes: bolt body 5, split push-pull component 2 and second pressure-bearing washer 6. The bolt body 5 is provided with external thread 51 at the bottom and a plurality of second mounting holes 52 at the top. The axial direction of the second mounting holes 52 is consistent with the axial direction of the bolt body 5. The split push-pull component 2 is installed in the second mounting holes 52 and the bottom of the split push-pull component 2 extends out of the second mounting holes 52 to abut against the second pressure-bearing washer 6.
[0053] The split-type jacking component 2 includes a torque bolt 21 and a pressure-bearing column 22. The pressure-bearing column 22 is disposed within a second mounting hole 52. The torque bolt 21 engages with the thread within the second mounting hole 52, and the torque bolt 21 presses the pressure-bearing column 22 towards the second pressure-bearing washer 6. By improving the existing single jacking bolt to a structure of torque bolt 21 and pressure-bearing column 22, the generated preload is a purely linear tensile force, thereby avoiding the damage caused by harmful torsion or bending resulting from ordinary thread tightening.
[0054] A third limiting protrusion 53 is provided at the bottom of the second mounting hole 52. The third limiting protrusion 53 restricts the pressure-bearing column 22 from moving further downward. The inner wall of the second mounting hole 52 is provided with a third internal thread 54. The distance that the pressure-bearing column 22 can move is limited by the third limiting protrusion 53.
[0055] The top of the pressure-bearing column 22 is provided with a second limiting protrusion 23. The outer diameter of the second limiting protrusion 23 is smaller than the inner diameter of the third internal thread 54, and the outer diameter of the second limiting protrusion 23 is larger than the inner diameter of the third limiting protrusion 53. This arrangement ensures that the pressure-bearing column 22 can be installed into the second mounting hole 52 and that its movement position is limited by the third limiting protrusion 53.
[0056] An anti-loosening component 4 is provided between the torque bolt 21 and the bolt body 5;
[0057] The anti-loosening component 4 includes an anti-loosening clip 41 and a retaining spring 42. The anti-loosening clip 41 engages with the top of the torque bolt 21, and the retaining spring 42 limits the anti-loosening clip 41 to the top of the torque bolt 21. The anti-loosening clip 41 and the retaining spring 42 further prevent the torque bolt 21 from loosening, thereby preventing the bolt body 5 from loosening.
[0058] The axial height of the torque bolt 21 is at least 0.1 times the axial height of the bearing column 22. Ensuring the length of the torque bolt 21 facilitates better stress distribution on the torque bolt 21.
[0059] A second fixing plate 7 and a second fixing bolt 8 are provided on the top of the bolt body 5. The second fixing plate 7 is pressed against the top of the torque bolt 21, and the second fixing bolt 8 presses the second fixing plate 7 tightly against the top of the bolt body 5. By pressing the top of the torque bolt 21 with the second fixing plate 7, the torque bolt 21 is further prevented from loosening due to vibration, and the fastening effect is more reliable.
[0060] In practical applications, torque nuts or torque bolts 21 with a push-pull structure come in thousands of different specifications depending on their diameter or size. Therefore, the number of separate push-pull components 2 is directly related to the diameter of the torque nut or torque bolt 21 with the push-pull structure. Simply put, the larger the diameter, the more separate push-pull components 2 are required; typically, there are no fewer than three separate push-pull components 2.
[0061] Since the pressure is applied in contact between the pressure column 22 and the pressure gasket, the resulting deformation will be concentrated between the pressure column 22 and the pressure gasket. If damage occurs, only the corresponding pressure column 22 and pressure gasket need to be replaced, which greatly reduces the cost of use.
[0062] like Figure 10 , Figure 11 and Figure 12As shown, a second sealing component 102 is provided on the top of the second fixing plate 7. The second sealing component 102 includes: a second protective cover 1021, a third anti-loosening gasket 1022, a fourth anti-loosening gasket 1023, a third sealing ring 1024, a fourth sealing ring 1025, a second grease filling port 1026, and a fourth fixing bolt 1027. The fourth fixing bolt 1027 passes through the second protective cover 1021 and connects to the top of the second fixing bolt 8, pressing the second protective cover 1021 against the top of the second fixing bolt 8. A third sealing ring 1024 is provided between the fourth fixing bolt 1027 and the second protective cover 1021. A third anti-loosening gasket 1022 is provided between the fourth fixing bolt 1027 and the second protective cover 1021, and the third anti-loosening gasket 1022 is pressed against the top of the third sealing ring 1024. A fourth anti-loosening washer 1023 is provided between the fixing bolt 8 and the second fixing plate 7. A fourth sealing ring 1025 is provided between the bottom outer side of the second pressure bearing washer 6 and the inner side of the second protective cover 1021. The second protective cover 1021 and the second pressure bearing washer 6 form a sealed space. At least one second grease filling port 1026 is provided on the top of the second protective cover 1021, and the second grease filling port 1026 communicates with the sealed space. In essence, the sealed space is closed by the third sealing ring 1024 between the second protective cover 1021 and the fourth fixing bolt 1027 and the fourth sealing ring 1025 between the bottom outer side of the second pressure bearing washer 6 and the inner side of the second protective cover 1021. The sealed space is then filled with grease through the second grease filling port 1026 to further prevent the internal components from contacting the outside and prevent corrosion. The second protective cover 1021 is made of corrosion-resistant materials such as stainless steel or titanium alloy, so that the internal components can be guaranteed not to rust and can operate normally even in harsh acid, alkaline and corrosive environments. The third anti-loosening gasket 1022 and the fourth anti-loosening gasket 1023 are male and female anti-loosening gaskets, and the third sealing ring 1024 and the fourth sealing ring 1025 are corrosion-resistant and acid and alkali-resistant O-rings. Of course, depending on different space conditions, the second grease filling port 1026 can be set at any position on the surface of the second protective cover 1021.
[0063] like Figure 13 As shown, the second sealing component 102 is a second elastic shield 1028 that covers the outer wall of the second fixing bolt 8, the bolt body 5, and the second bearing gasket 6. The second sealing component 102 provides better sealing protection in acidic or alkaline working environments, preventing internal components from corroding. The second elastic shield 1028 can be made of rubber or other elastic materials with anti-corrosion properties. However, the overall sealing effect is lower than the previous technical solution, and it can be used in environments with less severe acidic, alkaline, or corrosive conditions.
[0064] The above descriptions are merely some embodiments of this utility model. It should be noted that those skilled in the art can make other modifications and improvements without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.
Claims
1. A torque nut with a push-pull structure, characterized in that, include: The nut body comprises a split-push component and a first pressure-bearing washer. The nut body has a first internal thread and a plurality of first mounting holes on its outer wall. The axial direction of the first mounting holes is consistent with the axial direction of the nut body. The split-push component is installed in the first mounting holes and the bottom of the split-push component extends out of the first mounting holes to abut against the first pressure-bearing washer. The split-type jacking component includes a torque bolt and a pressure-bearing column. The pressure-bearing column is disposed in a first mounting hole. The torque bolt engages with the thread in the first mounting hole. The torque bolt presses the pressure-bearing column toward the first pressure-bearing pad.
2. The torque nut with a pushing structure according to claim 1, characterized in that, The bottom of the first mounting hole is provided with a first limiting protrusion, which limits the pressure-bearing column from continuing to move downward. The inner wall of the first mounting hole is provided with a second internal thread.
3. The torque nut with a pushing structure according to claim 2, characterized in that, The top of the pressure-bearing column is provided with a second limiting protrusion. The outer diameter of the second limiting protrusion is smaller than the inner diameter of the second internal thread, and the outer diameter of the second limiting protrusion is larger than the inner diameter of the first limiting protrusion.
4. The torque nut with a pushing structure according to any one of claims 1, 2, or 3, characterized in that, An anti-loosening component is provided between the torque bolt and the nut body; The anti-loosening component includes an anti-loosening clip and a retaining spring, wherein the anti-loosening clip engages with the top of the torque bolt, and the retaining spring restricts the anti-loosening clip to the top of the torque bolt.
5. The torque nut with a pushing structure according to any one of claims 1, 2, or 3, characterized in that, The axial height of the torque bolt is at least 0.1 times the axial height of the bearing column.
6. The torque nut with a pushing structure according to any one of claims 1, 2, or 3, characterized in that, A threaded hole is provided at the center of the shaft that meshes with the nut body. A first fixing plate is provided at the top of the torque bolt. The first fixing plate is pressed against the top of the torque bolt. The first fixing plate is connected to the shaft through a first fixing bolt to press the first fixing plate tightly against the top of the bolt body.
7. The torque nut with a pushing structure according to claim 6, characterized in that, A first sealing component is provided on the top of the first fixing plate. The first sealing component includes: a first protective cover, a first anti-loosening gasket, a second anti-loosening gasket, a first sealing ring, a second sealing ring, a first grease filling port, and a third fixing bolt. The third fixing bolt passes through the first protective cover and connects to the top of the first fixing bolt, pressing the first protective cover against the top of the first fixing bolt. A first sealing ring is provided between the third fixing bolt and the first protective cover. A first anti-loosening gasket is provided between the third fixing bolt and the first protective cover, and the first anti-loosening gasket is pressed against the top of the first sealing ring. A second anti-loosening gasket is provided between the first fixing bolt and the first fixing plate. A second sealing ring is provided on the bottom outer side of the first pressure-bearing gasket and the inner side of the first protective cover. The first protective cover and the first pressure-bearing gasket form a sealed space. At least one first grease filling port is provided on the surface of the first protective cover, and the first grease filling port communicates with the sealed space. Alternatively, the first sealing component may be a first elastic cover that covers the outer wall of the first fixing bolt, the nut body, and the first pressure-bearing gasket.
8. A torsion bolt with a jacking structure, characterized in that, include: The bolt body comprises a bolt body, a split-push component, and a second pressure-bearing washer. The bolt body has an external thread at its lower part and a plurality of second mounting holes at its upper part. The axial direction of the second mounting holes is consistent with the axial direction of the bolt body. The split-push component is installed in the second mounting holes and the bottom of the split-push component extends out of the second mounting holes to abut against the second pressure-bearing washer. The split-type jacking component includes a torque bolt and a pressure-bearing column. The pressure-bearing column is disposed in a second mounting hole. The torque bolt engages with the thread in the second mounting hole, and the torque bolt presses the pressure-bearing column toward the second pressure-bearing pad.
9. The torsion bolt with a pushing structure according to claim 8, characterized in that, A third limiting protrusion is provided at the bottom of the second mounting hole, which limits the pressure-bearing column from continuing to move downward. The inner wall of the second mounting hole is provided with a third internal thread.
10. The torsion bolt with a pushing structure according to claim 9, characterized in that, The top of the pressure-bearing column is provided with a second limiting protrusion. The outer diameter of the second limiting protrusion is smaller than the inner diameter of the third internal thread, and the outer diameter of the second limiting protrusion is larger than the inner diameter of the third limiting protrusion.
11. The torsion bolt with a pushing structure according to any one of claims 8, 9, or 10, characterized in that, An anti-loosening component is provided between the torque bolt and the bolt body; The anti-loosening component includes an anti-loosening clip and a retaining spring, wherein the anti-loosening clip engages with the top of the torque bolt, and the retaining spring restricts the anti-loosening clip to the top of the torque bolt; The axial height of the torque bolt is at least 0.1 times the axial height of the bearing column.
12. The torsion bolt with a jacking structure according to any one of claims 8, 9, or 10, characterized in that, The bolt body is provided with a second fixing plate and a second fixing bolt on the top. The second fixing plate is pressed against the top of the torque bolt, and the second fixing bolt presses the second fixing plate tightly against the top of the bolt body.
13. The torsion bolt with a pushing structure according to claim 12, characterized in that, A second sealing component is provided on the top of the second fixing plate. The second sealing component includes: a second protective cover, a third anti-loosening gasket, a fourth anti-loosening gasket, a third sealing ring, a fourth sealing ring, a second grease filling port, and a fourth fixing bolt. The fourth fixing bolt passes through the second protective cover and is connected to the top of the second fixing bolt, pressing the second protective cover against the top of the second fixing bolt. A third sealing ring is provided between the fourth fixing bolt and the second protective cover. A third anti-loosening gasket is provided between the fourth fixing bolt and the second protective cover, and the third anti-loosening gasket is pressed against the top of the third sealing ring. A fourth anti-loosening gasket is provided between the second fixing bolt and the second fixing plate. A fourth sealing ring is provided on the bottom outer side of the second pressure-bearing gasket and the inner side of the second protective cover. The second protective cover and the second pressure-bearing gasket form a sealed space. At least one second grease filling port is provided on the surface of the second protective cover, and the second grease filling port communicates with the sealed space. Alternatively, the second sealing component may be a second elastic cover that covers the outer wall of the second fixing bolt, the bolt body, and the second pressure-bearing gasket.