High-fastening bolt assembly
By designing high-tightening bolt assembly, the elastic deformation and extrusion of the limiting parts are used to solve the problem of easy loosening of the bolts, and the stable connection between the bolts and the tooling is achieved to prevent loosening and disengagement.
Patent Information
- Application Number
- CN202421883272.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-05
AI Technical Summary
When traditional bolts cooperate with external tooling threads, they are easily affected by external stress and loosening or rotating, causing joints between the plates and the tooling or the plates to fall off the tooling.
A high-tightening bolt assembly is designed, including a mounting sleeve and a bolt. The mounting sleeve is equipped with a mounting hole and a limiting member is provided on the bolt. The turnover of the bolt and the installation hole is limited through the limiting member. The elastic deformation and extrusion of the limiting shrapnel and limiting protrusion are used to enhance the connection strength between the bolt and the mounting sleeve.
Effectively prevent the bolt from loosening under external stress or tool vibration, ensure the stable connection between the plate and tool assembly, and avoid loosening or disengagement.
Smart Images
Figure CN223120381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bolts, in particular to a high-fastening bolt assembly. Background Art
[0002] At present, during the assembly of tooling, it is necessary to fix the plate to the tooling. Usually, threaded holes are drilled in the tooling, and then the plate is fixed to the tooling through gaskets and bolts. However, during the operation of some tooling, vibrations or external stresses act on the tooling. When the acting force generated by the vibration or the external stress acts on the bolts, the bolts may become loose or rotate, resulting in seams between the plate and the tooling or the plate becoming loose on the tooling, thereby affecting the operation of the tooling or causing the plate to fall off the tooling. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the utility model provides a high-fastening bolt assembly to solve the problem that traditional bolts are prone to looseness or rotation when thread-fitted with external tooling under the influence of external stresses.
[0004] To achieve the above object, the utility model provides a high-fastening bolt assembly, including a bolt and a mounting sleeve for mounting on an external tooling. The mounting sleeve is provided with a mounting hole for threaded connection with the bolt along its height direction. A first limiting member is provided on the bolt to limit the rotation of the bolt when the bottom wall of the bolt nut end approaches the top wall of the mounting sleeve. A second limiting member is provided in the mounting hole to limit the rotation of the bolt when the mounting hole is fully fitted with the bolt.
[0005] The beneficial effects of adopting the above technical solution are as follows: The operator mounts the mounting sleeve on the external tooling, then passes the bolt through the pre-embedded hole on the external plate, and then fits the bolt with the mounting hole. When the bolt is gradually fitted with the mounting hole and the bottom wall of the bolt nut end gradually approaches the top wall of the mounting sleeve, the first limiting member gradually limits the rotation of the bolt. When the bolt is fully fitted with the mounting hole, the second limiting member limits the bolt, making it difficult for the bolt screw end to become loose in the mounting hole when subjected to external stress loading or the acting force applied by the tooling. Thereby, the connection strength between the bolt and the mounting sleeve is improved, and indirectly, the connection strength between the external plate and the external tooling is improved, thus avoiding the bolt from becoming loose and causing the external plate to separate from the external tooling when the high-frequency vibration generated during the operation of the external tooling or the external stress loading acts on the bolt.
[0006] The present utility model is further provided that: a rotation groove is circumferentially formed on the top wall of the mounting sleeve, and a plurality of limiting elastic pieces are circumferentially arranged in the rotation groove. The radial cross-section of each limiting elastic piece is in an arc shape. The limiting elastic piece is composed of a deformation part and two end parts. The two end parts of the limiting elastic piece are respectively connected to the inner peripheral wall of the rotation groove. Adjacent limiting elastic pieces are in clearance fit and form a limiting clearance. A limiting protrusion for being inserted into the corresponding limiting clearance when the bottom wall of the bolt nut end approaches the top wall of the mounting sleeve is provided on the bottom wall of the bolt nut end corresponding to each limiting clearance. The limiting protrusion is in a cylindrical shape, and the limiting protrusion is the first limiting member. The outer wall of the deformation part of each limiting elastic piece is in clearance fit with the inner peripheral wall of the rotation groove.
[0007] The advantages of adopting the above technical solution are as follows: when an operator screws in the bolt, the nut end gradually approaches the top wall of the mounting sleeve. At this time, a plurality of limiting protrusions gradually insert into the rotation groove. Also, because the limiting elastic pieces are made of elastic metal material, when the limiting protrusions insert into the rotation groove and are located in the limiting clearance and rotate with the rotation of the bolt, the limiting protrusions will gradually move and squeeze the limiting elastic pieces to cause the limiting elastic pieces to deform. The deformation and contraction of the limiting elastic pieces increase the clearance between its deformation part and the inner peripheral wall of the rotation groove to facilitate the movement of the limiting protrusions. When the bolt is rotated to the tightest position, the limiting protrusions are located in the limiting clearance. At this time, the limiting protrusions are restricted by the limiting elastic pieces on both sides and are located in the limiting clearance. When an external stress is applied to the bolt or a force is applied due to the vibration of the tooling, the bolt is difficult to loosen or slightly rotate in the mounting hole because the limiting protrusions are restricted in the limiting clearance. Since the outer edge of the bottom of the bolt nut end still presses on the external plate member, the external plate member still presses on the external tooling, so that the external plate member is stably arranged on the external tooling, thereby realizing the stable connection between the external plate member and the external tooling.
[0008] The present utility model is further provided that: the limiting protrusion is made of rubber material.
[0009] The advantages of adopting the above technical solution are as follows: in the above technology, the setting that the limiting protrusion is made of rubber material endows it with certain elasticity, so that when it contacts the limiting elastic piece, it can deform and apply a certain force to the limiting elastic piece to enable the limiting elastic piece to deform. At the same time, during the disassembly and assembly of the bolt, because the limiting protrusion has certain elasticity, it will not be stuck in the limiting clearance. Furthermore, on the basis of ensuring that the cooperation between the limiting protrusion and the limiting clearance can prevent the bolt from loosening or over-rotating, the bolt can be disassembled by applying a certain force by the operator.
[0010] The present utility model is further provided with: Two slots are oppositely arranged on the inner peripheral wall of the mounting hole. In both of the two slots, there are arranged abutting elastic pieces. Two ends of each abutting elastic piece are respectively connected to the top wall and the bottom wall of the slot. The abutting elastic piece bulges towards the opening of the slot and forms an abutting portion. The radial cross-section of the abutting elastic piece is in an arc shape, and a part of the abutting portion penetrates out of the opening of the slot. The abutting elastic piece is made of elastic metal material, and the abutting elastic piece is the second limiting member.
[0011] The advantages of adopting the above technical solution are as follows: When the bolt is screwed into the mounting hole, the bolt will gradually contact and push open the abutting portion. Since the abutting elastic piece is made of elastic metal material, the abutting portion of the abutting elastic piece is deformed by extrusion and generates a certain acting force on the outer peripheral wall of the bolt screw end. By applying the acting forces of the two oppositely arranged abutting elastic pieces on the bolt screw end, clamping and limiting of the bolt screw end are achieved. Furthermore, when an external stress acts on the bolt or the tooling rotates at a high speed and applies an acting force on the bolt, the bolt can be prevented from loosening or rotating, so that the connection strength between the external plate and the external tooling is not affected or a joint is generated between the external plate and the external tooling. Therefore, the connection strength between the bolt and the mounting sleeve is improved.
[0012] The present utility model is further provided with: The outer peripheral wall surface of the mounting sleeve is a welding surface for being welded in a pre-embedded hole on an external tooling.
[0013] The advantages of adopting the above technical solution are as follows: The setting of the welding surface in the above technology facilitates the connection between the mounting sleeve and the pre-embedded hole on the external tooling, and thus improves the connection strength between the mounting sleeve and the external tooling. Description of the Drawings
[0014] Figure 1 is a three-dimensional view of the present utility model;
[0015] Figure 2 is a three-dimensional view of the top view of the mounting sleeve in the present utility model;
[0016] Figure 3 is Figure 2 a simple cross-sectional view of
[0017] Figure 4 is a simple three-dimensional view of the bolt in the present utility model. Detailed Embodiment
[0018] The utility model provides a high-fastening bolt 1 assembly, which includes a bolt 1 and a mounting sleeve 2 for being mounted on an external tooling. The mounting sleeve 2 is provided with a mounting hole 21 for threaded connection with the bolt 1 along its height direction. A first limiting member is arranged on the bolt 1 for restricting the rotation of the bolt 1 when the bottom wall of the nut end 11 of the bolt 1 approaches the top wall of the mounting sleeve 2. A second limiting member is arranged in the mounting hole 21 for restricting the rotation of the bolt 1 when the mounting hole 21 is fully engaged with the bolt 1. A rotating groove 22 is circumferentially formed on the top wall of the mounting sleeve 2, and a plurality of limiting elastic pieces 3 are circumferentially arranged in the rotating groove 22. The radial cross-section of each limiting elastic piece 3 is in an arc shape. The limiting elastic piece 3 is composed of a deformation part 31 and two end parts 32. The two end parts 32 of the limiting elastic piece 3 are respectively connected to the inner peripheral wall of the rotating groove 22. Adjacent limiting elastic pieces 3 are in clearance fit and form a limiting gap 33. A limiting protrusion 12 for being inserted into the corresponding limiting gap 33 when the bottom wall of the nut end 11 of the bolt 1 approaches the top wall of the mounting sleeve 2 is arranged on the bottom wall of the nut end 11 of the bolt 1 corresponding to each limiting gap 33. The limiting protrusion 12 is in a cylindrical shape, and the limiting protrusion 12 is the first limiting member. The outer wall of the deformation part 31 of each limiting elastic piece 3 is in clearance fit with the inner peripheral wall of the rotating groove 22. The limiting protrusion 12 is made of rubber material. Two notches 23 are oppositely arranged on the inner peripheral wall of the mounting hole 21, and a contact elastic piece 4 is arranged in each of the two notches 23. The two ends of the contact elastic piece 4 are respectively connected to the top wall and the bottom wall of the notch 23. The contact elastic piece 4 bulges towards the opening of the notch 23 and forms a contact part 41. The radial cross-section of the contact elastic piece 4 is in an arc shape and the contact part 41 partially penetrates through the opening of the notch 23. The contact elastic piece 4 is made of elastic metal material, and the contact elastic piece 4 is the second limiting member. The outer peripheral wall surface of the mounting sleeve 2 is a welding surface 24 for being welded in a pre-embedded hole of an external tooling.
[0019] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.
Claims
1. A high-fastening bolt assembly, characterized in that: It includes a bolt and a mounting sleeve for mounting on an external tooling. The mounting sleeve is provided with a mounting hole for threaded connection with the bolt along its height direction. A first limiting member for restricting the rotation of the bolt is provided on the bolt when the bottom wall of the bolt nut end approaches the top wall of the mounting sleeve. A second limiting member for restricting the rotation of the bolt is provided in the mounting hole when the mounting hole is fully engaged with the bolt.
2. The high-tightening bolt assembly according to claim 1, characterized in that: A rotation groove is circumferentially formed on the top wall of the mounting sleeve. A number of limiting elastic pieces are circumferentially arranged in the rotation groove. The radial cross-section of each limiting elastic piece is in an arc shape. The limiting elastic piece is composed of a deformation part and two end parts. The two end parts of the limiting elastic piece are respectively connected to the inner peripheral wall of the rotation groove. Adjacent limiting elastic pieces are in clearance fit and form a limiting gap. A limiting protrusion for being inserted into the corresponding limiting gap when the bottom wall of the bolt nut end approaches the top wall of the mounting sleeve is provided on the bottom wall of the bolt nut end corresponding to each limiting gap. The limiting protrusion is in a cylindrical shape. The limiting protrusion is the first limiting member. The outer wall of the deformation part of each limiting elastic piece is in clearance fit with the inner peripheral wall of the rotation groove.
3. A high-fastening bolt assembly according to claim 2, characterized in that: The limiting protrusion is made of rubber material.
4. A high-fastening bolt assembly according to claim 1, characterized in that: Two slots are oppositely arranged on the inner peripheral wall of the mounting hole. A contact elastic piece is provided in each of the two slots. The two ends of the contact elastic piece are respectively connected to the top wall and the bottom wall of the slot. The contact elastic piece bulges towards the opening of the slot and forms a contact part. The radial cross-section of the contact elastic piece is in an arc shape and the contact part partially penetrates through the opening of the slot. The contact elastic piece is made of elastic metal material. The contact elastic piece is the second limiting member.
5. A high-fastening bolt assembly according to claim 1, characterized in that: The outer peripheral wall surface of the mounting sleeve is a welding surface for welding in a pre-embedded hole on an external tooling.