Fastener assembly
Through the design of the clamping structure and reset device, the problem of bolts and nuts loosening of the fastener under vibration conditions is solved, and effective limits on the nuts and screws are achieved to ensure the stability and reliability of the connection.
Patent Information
- Application Number
- CN202422879633.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Under long-term vibration, impact or alternating loads, bolts and nuts are prone to shake or displace, resulting in loosening of threaded connections, reducing the clamping force of the connection or even failing.
The clamping structure and resetting device are adopted, including U-shaped plate, nut, screw, nut, slider, limit rod and drive structure. The limit plate and slider are pushed through the elastic members to slide, and the slider and limit block are inserted into the limit groove or hole to achieve limiting the nut and screw and avoid displacement.
Effectively prevent the nuts and screws from displaced or falling off during vibration, maintain the fastening effect, and improve the reliability and stability of the connection.
Smart Images
Figure CN223227667U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of fasteners, in particular to a fastener assembly. Background Art
[0002] Fasteners are mechanical parts used to connect or tighten two or more components. Their primary function is to tightly bind the connected parts together. Bolts and nuts, through threaded engagement, provide a strong clamping force, tightly connecting two or more components. This connection maintains reliability even under significant tension, compression, or shear forces, making it suitable for a variety of heavy-load and high-strength connection scenarios.
[0003] When current bolts and nuts are used in combination, under the action of long-term vibration, impact or alternating loads, the bolts and nuts will shake or displace, causing the threaded connection between the bolts and nuts to gradually loosen, resulting in a decrease in the clamping force of the connection and even connection failure.
[0004] Therefore, it is necessary to provide a fastener assembly to solve the above technical problems. Utility Model Content
[0005] The utility model provides a fastener assembly, which solves the problem that under the action of long-term vibration, impact or alternating loads, the bolt and nut of the fastener assembly may shake or displace, causing the threaded connection between the bolt and nut to gradually loosen, resulting in a decrease in the clamping force of the connection and even connection failure.
[0006] To solve the above technical problems, the utility model provides a fastener assembly, comprising: a clamping structure, the clamping structure comprising a U-shaped plate, a nut, a first limiting groove, a screw and a nut, the nut being fixedly mounted on the bottom of the U-shaped plate, the screw passing through the U-shaped plate and the nut and then being threadedly connected to the nut, the nut being fixedly mounted on the top of the screw, and the nut being provided with the first limiting groove;
[0007] A reset device, comprising a protective shell, a sliding rod, a limiting rod, and a driving structure, wherein the protective shell is mounted on the U-shaped plate, the limiting rod is mounted in the protective shell, the driving structure is mounted on the limiting rod, and the sliding rod is mounted on the output end of the driving structure and sleeved on the limiting rod;
[0008] A first limiting structure is installed on the sliding rod, and the first limiting structure is adapted to the first limiting groove.
[0009] Preferably, the driving structure includes a limit plate and an elastic member, the limit plate is installed at one end of the sliding rod, one end of the elastic member is fixedly installed on the inner wall of the protective shell, and the other end of the elastic member is fixedly installed on the limit plate, and the limit plate and the elastic member are both mounted on the limit rod.
[0010] Preferably, the clamping structure further includes a first limiting hole and a second limiting hole, the first limiting hole and the second limiting hole are adjacently opened on the U-shaped plate, and the first limiting hole and the second limiting hole are adapted to the first limiting structure.
[0011] Preferably, the first limiting structure includes a first limiting block, a sliding groove and a slider, the first limiting block is provided with the sliding groove, the slider is fixedly mounted on one end of the sliding rod, and the slider is slidably connected in the sliding groove.
[0012] Preferably, the fastener assembly further comprises a second limiting groove, two second limiting structures and a handle, the nut is symmetrically provided with two second limiting grooves, the U-shaped plate is further provided with two third limiting holes, and both ends of the handle are respectively fixedly mounted on the two second limiting structures;
[0013] Wherein, one second limiting groove and one third limiting hole form a group, and the second limiting structure is slidably connected in the second limiting groove and the third limiting hole.
[0014] Preferably, the second limiting structure includes a cylindrical limiting block and a square limiting block, one end of the cylindrical limiting block is fixedly mounted on the handle, and the other end of the cylindrical limiting block is fixedly connected to the square limiting block.
[0015] Preferably, the second limiting groove includes a cylindrical groove and a square groove, the cylindrical groove and the square groove are both opened on the nut, and the cylindrical groove and the square groove are connected.
[0016] Compared with the related art, the fastener assembly provided by the present invention has the following beneficial effects:
[0017] The utility model provides a fastener assembly, which, when working, when it is necessary to limit the nut, the elastic potential energy is released by the elastic member to push the limiting plate and the sliding rod to slide on the limiting rod, and the sliding rod pushes the sliding block and the first limiting block to move. When the first limiting block moves into the first limiting groove, the first limiting block is pressed downward and inserted into the first limiting hole. When the screw is vibrated, the first limiting block limits the nut, and the first limiting hole limits the first limiting block, thereby achieving the purpose of limiting the nut and the screw, avoiding the nut and the screw from being displaced or falling off, which affects the fastening effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A structural schematic diagram of a preferred embodiment of a fastener assembly provided by the utility model;
[0019] Figure 2 This is a side view cross-sectional structural diagram of the present invention;
[0020] Figure 3 for Figure 2 An enlarged schematic diagram of part A is shown;
[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the utility model;
[0022] Figure 5 This is a structural diagram of another embodiment of the present invention;
[0023] Figure 6 is a schematic side cross-sectional structural diagram of another embodiment;
[0024] Figure 7 for Figure 6 An enlarged schematic diagram of part B is shown;
[0025] Figure 8 Schematic diagram of the U-shaped plate structure of another embodiment.
[0026] Numbers in the figure:
[0027] 1. Clamping structure; 11. U-shaped plate; 111. First limiting hole; 112. Second limiting hole; 113. Third limiting hole; 12. Nut; 121. First limiting groove; 13. Screw; 14. Nut;
[0028] 2. Reset device; 21. Protective shell; 22. Sliding rod; 23. Limiting rod; 24. Driving structure; 241. Limiting plate; 242. Elastic member;
[0029] 3. First limiting structure; 31. First limiting block; 311. Slide groove; 32. Slider;
[0030] 4. Second limiting groove; 41. Cylindrical groove; 42. Square groove;
[0031] 5. Second limiting structure; 51. Cylindrical limiting block; 52. Square limiting block;
[0032] 6. Handle. DETAILED DESCRIPTION
[0033] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0034] First embodiment
[0035] Please refer to Figure 1 、 Figure 2 and Figure 3 A fastener assembly includes: a clamping structure 1, the clamping structure 1 including a U-shaped plate 11, a nut 12, a first limiting groove 121, a screw 13 and a nut 14, the nut 14 is fixedly mounted on the bottom of the U-shaped plate 11, the screw 13 passes through the U-shaped plate 11 and the nut 14 and is threadedly connected to the nut 14, the nut 12 is fixedly mounted on the top of the screw 13, and the nut 12 is provided with the first limiting groove 121;
[0036] The reset device 2 includes a protective shell 21, a slide rod 22, a limit rod 23, and a drive structure 24. The protective shell 21 is mounted on the U-shaped plate 11, the limit rod 23 is mounted in the protective shell 21, the drive structure 24 is mounted on the limit rod 23, and the slide rod 22 is mounted on the output end of the drive structure 24 and sleeved on the limit rod 23.
[0037] a first limiting structure 3, which is mounted on the slide bar 22 and is adapted to fit in the first limiting groove 121;
[0038] During operation, when the fixing part needs to be fixed, the screw 13 is passed through the U-shaped plate 11 and the nut 14, and the nut 12 is rotated so that the screw 13 is threadedly connected with the nut 14 to achieve the purpose of fixing the fixing part. When the nut 12 is rotated, the driving structure 24 is set to the ready state, pushing the first limiting structure 3 to move in the direction away from the nut 12, and the first limiting structure 3 drives the sliding rod 22 to slide on the limiting rod 23, and the sliding rod 22 drives the driving structure 24 to move, avoiding the first limiting structure 3 from interfering with the nut 12. When the nut 12 finishes rotating, the first limiting groove 121 is aligned with the first limiting structure 3, releasing the first limiting structure 3, and driving The dynamic structure 24 enters the working state, and the output end pushes the sliding rod 22 to move. The sliding rod 22 drives the first limiting structure 3 to move, and pushes the first limiting structure 3 into the first limiting groove 121, so as to achieve the purpose of limiting the nut 12 and the screw 13. When the screw 13 is vibrated, the first limiting structure 3 limits the nut 12 and the screw 13 to prevent the screw 13 from being displaced or falling off, which affects the fastening effect. When it is necessary to release the fixation of the fastener, push the first limiting structure 3 to make it leave the first limiting groove 121, release the limit on the nut 12 and the screw 13, and then rotate the nut 12 and the screw 13 to release the fixation of the fastener.
[0039] Please refer to Figure 2 and Figure 3The driving structure 24 includes a limit plate 241 and an elastic member 242. The limit plate 241 is mounted on one end of the sliding rod 22. One end of the elastic member 242 is fixedly mounted on the inner wall of the protective shell 21. The other end of the elastic member 242 is fixedly mounted on the limit plate 241. Both the limit plate 241 and the elastic member 242 are sleeved on the limit rod 23.
[0040] When the nut 12 and the screw rod 13 are rotated, the first limiting structure 3 is pushed to move in the direction away from the nut 12, and the first limiting structure 3 drives the sliding rod 22 and the limiting plate 241 to slide on the limiting rod 23, and the limiting plate 241 compresses the elastic member 242, and the elastic member 242 stores elastic potential energy. When the fixing member is fixed and the nut 12 needs to be limited, the first limiting structure 3 is released. At this time, the elastic member 242 releases the elastic potential energy, pushing the limiting plate 241 and the sliding rod 22 to slide on the limiting rod 23, and the sliding rod 22 pushes the first limiting structure 3 to move toward the nut 12, pushing the first limiting structure 3 into the first limiting groove 121, so that the first limiting structure 3 is tightly fitted with the inner wall of the first limiting groove 121, avoiding displacement of the screw rod 13 and the nut 12 when being vibrated, thereby achieving the purpose of limiting the nut 12 and the screw 13.
[0041] Please refer to Figure 1 and Figure 3 , the clamping structure 1 further includes a first limiting hole 111 and a second limiting hole 112, the first limiting hole 111 and the second limiting hole 112 are adjacently opened on the U-shaped plate 11, and the first limiting hole 111 and the second limiting hole 112 are adapted to the first limiting structure 3;
[0042] During operation, when the nut 12 is rotated, the first limiting structure 3 is pushed to move in the direction away from the nut 12. When the first limiting structure 3 moves to above the second limiting hole 112, the first limiting structure 3 is inserted into the second limiting hole 112, and the first limiting structure 3 continues to be limited to avoid affecting the rotation of the nut 12. When the nut 12 finishes rotating, the first limiting hole 111 is located directly below the first limiting groove 121. When the nut 12 needs to be limited, the first limiting structure 3 is moved to the first limiting groove 121, the nut 12 is limited, and then the first limiting structure 3 is inserted into the first limiting hole 111. At the same time, the first limiting structure 3 is limited to avoid the first limiting structure 3 from being offset when it is vibrated, which affects the limiting effect of the nut 12.
[0043] Please refer to Figure 3 and Figure 4The first limiting structure 3 includes a first limiting block 31, a slide groove 311 and a slider 32. The first limiting block 31 is provided with the slide groove 311. The slider 32 is fixedly mounted on one end of the slide rod 22 and is slidably connected in the slide groove 311.
[0044] When working, when the nut 12 rotates, the first limit block 31 is pushed to move toward the second limit hole 112, and the first limit block 31 drives the slider 32 to move, and the slider 32 drives the slide rod 22 and the limit plate 241 to slide on the limit rod 23, and the limit plate 241 compresses the elastic member 242 to store elastic potential energy. When the first limit block 31 moves to the top of the second limit hole 112, the first limit block 31 is pressed downward, and the first limit block 31 slides on the slider 32 through the slide groove 311 and is inserted into the second limit hole 112, thereby limiting the first limit block 31 and preventing the elastic member from sliding. 242 releases elastic potential energy, causing the first limit block 31 to move. When the nut 12 is limited, the first limit block 31 is pulled out of the second limit hole 112. At this time, the elastic member 242 releases elastic potential energy, pushing the limit plate 241 and the slide rod 22 to move, and the slide rod 22 pushes the slider 32 and the first limit block 31 to move. When the first limit block 31 moves into the first limit groove 121, the first limit block 31 is pressed downward and inserted into the first limit hole 111, thereby achieving the purpose of limiting the first limit block 31 and preventing the first limit block 31 from shifting when it is vibrated.
[0045] Second embodiment
[0046] Please refer to Figure 5 、 Figure 6 and Figure 8 The fastener assembly further includes a second limiting groove 4, two second limiting structures 5 and a handle 6. The nut 12 is symmetrically provided with two second limiting grooves 4, and the U-shaped plate 11 is further provided with two third limiting holes 113. The two ends of the handle 6 are respectively fixedly mounted on the two second limiting structures 5.
[0047] Among them, one second limiting groove 4 and one third limiting hole 113 form a group, and the second limiting structure 5 is slidably connected in the second limiting groove 4 and the third limiting hole 113;
[0048] In this embodiment, when the nut 12 needs to be rotated, after the screw 13 passes through the U-shaped plate 11 and the fixing piece, the handle 6 is lifted, and the handle 6 drives the second limiting structures 5 at both ends to move upward into the second limiting groove 4. At this time, the handle 6 is rotated, and the handle 6 drives the second limiting structure 5 to rotate. The second limiting structure 5 drives the nut 12 and the screw 13 to rotate, so that the screw 13 is threadedly connected with the nut 14 to fix the fixing piece. When the rotation is completed and the nut 12 needs to be limited, the second limiting groove 4 is aligned with the third limiting hole 113, and then the handle 6 is pressed. The handle 6 drives the second limiting structure 5 to move downward, and the second limiting structure 5 is inserted into the third limiting hole 113 to limit the second limiting structure 5. The handle 6 and the second limiting structure 5 are used to facilitate the rotation of the nut 12, and at the same time achieve the purpose of limiting the nut 12.
[0049] Please refer to Figure 6 and Figure 7 The second limiting structure 5 includes a cylindrical limiting block 51 and a square limiting block 52, one end of the cylindrical limiting block 51 is fixedly mounted on the handle 6, and the other end of the cylindrical limiting block 51 is fixedly connected to the square limiting block 52;
[0050] When the nut 12 is rotated, the handle 6 is lifted and rotated, and the cylindrical limit block 51 and the square limit block 52 move upward into the second limit groove 4. The handle 6 drives the nut 12 to rotate through the cylindrical limit block 51 and the square limit block 52, thereby achieving the purpose of rotating the nut 12 and the screw 13. When the nut 12 needs to be limited, the second limit groove 4 is aligned with the third limit hole 113, and then the handle 6 is pressed to insert the square limit block 52 into the third limit hole 113 to limit the handle 6 and the nut 12.
[0051] Please refer to the Figure 6 and Figure 7 The second limiting groove 4 includes a cylindrical groove 41 and a square groove 42, and the cylindrical groove 41 and the square groove 42 are both opened on the nut 12, and the cylindrical groove 41 and the square groove 42 are connected;
[0052] When the nut 12 is rotated, the handle 6 is lifted and rotated, the cylindrical limit block 51 slides upward into the cylindrical groove 41, and the square limit block 52 moves upward into the square groove 42. The cylindrical groove 41 is located on the square groove 42, and the square limit block 52 is limited by the cylindrical groove 41 to prevent the handle 6 from falling off from the nut 12.
[0053] The working principle of the fastener assembly provided by the utility model is as follows:
[0054] During operation, when the fixing part needs to be fixed, the screw 13 is passed through the U-shaped plate 11 and the nut 14, and the nut 12 is rotated so that the screw 13 is threadedly connected with the nut 14 to achieve the purpose of fixing the fixing part. When the nut 12 is rotated, the first limit block 31 is pushed to move toward the second limit hole 112, and the first limit block 31 drives the slider 32 to move, and the slider 32 drives the slide bar 22 and the limit plate 241 to slide on the limit rod 23. The limit plate 241 compresses the elastic part 242 to store elastic potential energy. When the first limit block 31 moves to the top of the second limit hole 112, the first limit block 31 is pressed against the second limit hole 112. When the nut 12 needs to be limited, the first limit block 31 is pulled out from the second limit hole 112. At this time, the elastic member 242 releases its elastic potential energy, pushing the limit plate 241 and the slide rod 22 to slide on the limit rod 23, and the slide rod 22 pushes the slide rod 32 and the first limit block 31 to move. When the first limit block 31 moves into the first limit groove 121, the first limit block 31 is pressed downward. When the screw 13 is subjected to vibration, the first limiting block 31 limits the nut 12, and the first limiting hole 111 limits the first limiting block 31 to prevent the nut 12 and the screw 13 from being displaced or falling off, which affects the fastening effect. When it is necessary to release the fixation, the first limiting block 31 is pulled out from the first limiting hole 111, and the first limiting block 31 is pushed to move and then inserted into the second limiting hole 112 to release the limit on the nut 12 and the screw 13, and then the nut 12 and the screw 13 are rotated to release the fixation of the fastener. The handle 6, the cylindrical limiting block 51 and the square The limiting block 52, when the nut 12 is rotated, the handle 6 is lifted, the cylindrical limiting block 51 slides upward into the cylindrical groove 41, and the square limiting block 52 moves upward into the square groove 42. The cylindrical groove 41 is located on the square groove 42. The square limiting block 52 is limited by the cylindrical groove 41 to prevent the handle 6 from falling off the nut 12. The nut 12 and the screw 13 are driven to rotate by rotating the handle 6 to fix the fixing part. When the nut 12 needs to be limited, the handle 6 is pressed and the square limiting block 52 is inserted into the third limiting hole 113 to achieve the purpose of limiting the handle 6 and the nut 12.
[0055] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A fastener assembly, characterized in that: include: A clamping structure comprising a U-shaped plate, a nut, a first limiting groove, a screw and a nut, wherein the nut is fixedly mounted on the bottom of the U-shaped plate, the screw passes through the U-shaped plate and the nut and is threadedly connected to the nut, the nut is fixedly mounted on the top of the screw, and the nut is provided with the first limiting groove; A reset device, comprising a protective shell, a sliding rod, a limiting rod, and a driving structure, wherein the protective shell is mounted on the U-shaped plate, the limiting rod is mounted in the protective shell, the driving structure is mounted on the limiting rod, and the sliding rod is mounted on the output end of the driving structure and sleeved on the limiting rod; A first limiting structure is installed on the sliding rod, and the first limiting structure is adapted to the first limiting groove.
2. The fastener assembly according to claim 1, wherein: The driving structure includes a limit plate and an elastic member, the limit plate is installed at one end of the sliding rod, one end of the elastic member is fixedly installed on the inner wall of the protective shell, and the other end of the elastic member is fixedly installed on the limit plate, and the limit plate and the elastic member are both sleeved on the limit rod.
3. The fastener assembly according to claim 1, wherein: The clamping structure further includes a first limiting hole and a second limiting hole. The first limiting hole and the second limiting hole are adjacently opened on the U-shaped plate, and the first limiting hole and the second limiting hole are adapted to the first limiting structure.
4. The fastener assembly according to claim 1, wherein: The first limiting structure includes a first limiting block, a sliding groove and a slider. The sliding groove is provided on the first limiting block. The slider is fixedly installed at one end of the sliding rod and is slidably connected in the sliding groove.
5. The fastener assembly according to claim 1, wherein: The fastener assembly further includes a second limiting groove, two second limiting structures and a handle, the nut is symmetrically provided with two second limiting grooves, the U-shaped plate is further provided with two third limiting holes, and the two ends of the handle are respectively fixedly mounted on the two second limiting structures; Wherein, one second limiting groove and one third limiting hole form a group, and the second limiting structure is slidably connected in the second limiting groove and the third limiting hole.
6. The fastener assembly according to claim 5, wherein: The second limiting structure includes a cylindrical limiting block and a square limiting block. One end of the cylindrical limiting block is fixedly mounted on the handle, and the other end of the cylindrical limiting block is fixedly connected to the square limiting block.
7. The fastener assembly according to claim 5, wherein: The second limiting groove includes a cylindrical groove and a square groove, the cylindrical groove and the square groove are both opened on the nut, and the cylindrical groove and the square groove are communicated.