Detachable bolt for large machinery
By designing the bolt head, bolt shank, and limiting structure, the problem of bolts loosening due to vibration in large mechanical equipment was solved, achieving a stable bolt connection and improving the fastening effect.
Patent Information
- Application Number
- CN202422299964.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-20
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-09-20
AI Technical Summary
Traditional bolts, due to vibration in large machinery, suffer from thread wear, resulting in poor fastening effect and easy detachment.
A detachable bolt for large machinery has been designed, including a bolt head, bolt shank, anti-slip strip, lifting screw, limit bracket, and pushing block. Through the cooperation of these components, the bolt can be limited and tightened to prevent loosening and deflection.
It effectively prevents bolts from loosening and deflecting during mechanical vibration, improves the fastening effect, and ensures a stable connection between the bolts and mechanical equipment.
Smart Images
Figure CN223549619U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bolt technology, specifically a detachable bolt for large machinery. Background Technology
[0002] Bolts are common in daily life. Large equipment requires large bolts due to the need for extremely stable connection strength. Traditionally, these bolts consist of a bolt body and a bolt head. The outer peripheral wall of the bolt body is provided with external threads, which are connected to the threaded holes in the workpiece to fix it. When the bolt is threadedly connected to the mechanical equipment, the mechanical equipment will vibrate during operation. Long-term mechanical vibration causes the bolt to wobble, resulting in thread wear and a decrease in the bolt's tightening effect, which can lead to the two separating. To address this, we propose a detachable bolt for large machinery. Utility Model Content
[0003] In order to overcome the shortcomings of the prior art, this utility model provides a detachable bolt for large machinery, which effectively solves the problem that the mechanical equipment will vibrate during operation, and the long-term mechanical vibration will cause the bolt to wobble, resulting in thread wear and a deterioration of the bolt's fastening effect, thus causing the two to separate.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a detachable bolt for large machinery, comprising a bolt head and a bolt shank. The bolt head is disposed at the top of the bolt shank. The outer wall of the bolt shank has a threaded groove, and the inner wall of the threaded groove has an anti-slip strip. The bolt head is hexagonal, and the top wall of the bolt head has a rotating groove. The inner wall of the rotating groove has a lifting screw, and the top of the lifting screw has a screwdriver groove. The bottom wall of the bolt head has a limiting groove, and the inner wall of the limiting groove has a limiting frame. The limiting frame is disposed on the outer wall of the lifting screw, and anti-slip pads are provided on both the left and right sides of the bottom wall of the limiting frame.
[0005] Preferably, the bolt rod is hollow, the bottom end of the lifting screw is disposed on the bottom wall of the inner cavity of the bolt rod, the outer wall of the bolt rod is evenly provided with moving grooves, the inner wall of each moving groove is provided with a limit block, the outer wall of the lifting screw is provided with a pushing block, the outer wall of the pushing block is inclined, and the side of the multiple sets of limit blocks near the axis is inclined.
[0006] Preferably, the inner wall of the bolt rod is arranged in a cross shape, and the outer wall of the push block matches the inner wall of the bolt rod.
[0007] Preferably, the outer wall of the limiting block is T-shaped, and the inner wall of the moving groove matches the outer wall of the limiting block.
[0008] Preferably, the inner wall of the bolt rod is uniformly provided with support plates, the top of the support plates is provided with through holes, and the lifting screw is located on the inner wall of the through holes.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] 1. The large machinery uses detachable bolts. By setting bolt heads, bolt shanks, and anti-slip strips, the device can easily limit the bolt heads after tightening, preventing the bolt shanks from loosening due to vibration during operation, thus facilitating the tightening of the machinery.
[0011] 2. The large machinery uses detachable bolts. By setting up bolt rods, lifting screws and pushing blocks, the device can easily limit the bolt rods, prevent the bolt rods from deflecting due to vibration, and facilitate the fastening of mechanical equipment.
[0012] 3. The detachable bolts used in this large machinery, through the combination of a pushing block, a bolt rod, and a limiting block, allow the device to easily limit and guide the movement of the pushing block, preventing the pushing block from deflecting, facilitating the movement of the limiting block, and making it easier to tighten the bolt rod subsequently. Attached Figure Description
[0013] 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.
[0014] In the attached diagram:
[0015] Figure 1 This is a schematic diagram of the detachable bolt structure for large machinery according to this utility model;
[0016] Figure 2 This is a cross-sectional structural diagram of the bolt rod of this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the limiting block of this utility model;
[0018] In the diagram: 100, bolt head; 101, bolt rod; 102, anti-slip strip; 103, lifting screw; 104, limit frame; 105, anti-slip pad; 106, limit block; 107, pushing block; 108, support plate. Detailed Implementation
[0019] 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.
[0020] Depend on Figure 1 , Figure 2 and Figure 3 This invention discloses a detachable bolt for large machinery. The bolt head 100 is fixedly connected to the top of the bolt shank 101. The outer wall of the bolt shank 101 has a threaded groove, and an anti-slip strip 102 is fixedly connected to the inner wall of the threaded groove to effectively prevent loosening and detachment due to vibration. The bolt head 100 is hexagonal, which facilitates turning with a handle. A rotating groove is formed on the top wall of the bolt head 100, and a lifting screw 103 is rotatably connected to the inner wall of the rotating groove, allowing for easy operation. The limiting frame 104 is raised and lowered. The top of the lifting screw 103 is provided with a screwdriver slot, which facilitates the turning of the screw with a screwdriver. The bottom wall of the bolt head 100 is provided with a limiting groove, and the inner wall of the limiting groove is slidably connected to the limiting frame 104. The limiting frame 104 facilitates the movement of the anti-slip pad 105. The limiting frame 104 is connected to the outer wall of the lifting screw 103. Anti-slip pads 105 are fixedly connected to both the left and right sides of the bottom wall of the limiting frame 104, which facilitates anti-slip by pressing against the top wall of the machine.
[0021] In this embodiment: the bolt head 100 is rotated by a wrench, causing the bolt rod 101 to rotate. The rotation of the bolt rod 101 tightens it by screwing it onto the machine. After tightening, the lifting screw 103 is rotated by a screwdriver, causing the limiting frame 104 to move. The limiting frame 104 moves up and down within the limiting groove. The limiting frame 104 moves the anti-slip pad 105, causing it to press against the top wall of the machine to prevent the bolt head 100 from slipping. The bolt head 100 facilitates the limiting of the bolt rod 101. Flipping the lifting screw 103 can release the tightening, facilitating subsequent disassembly. This device facilitates the limiting of the tightened bolt head 101, preventing vibrations during machine operation that could cause the bolt rod 101 to loosen, thus improving the tightening of the machine.
[0022] It should be noted that the bottom wall of its anti-slip pad 105 is evenly provided with anti-slip protrusions, which can increase friction and improve the fastening effect.
[0023] The bolt rod 101 is hollow. The bottom end of the lifting screw 103 is located on the bottom wall of the inner cavity of the bolt rod 101. The outer wall of the bolt rod 101 is evenly provided with moving grooves. The inner wall of each moving groove is slidably connected with a limit block 106. The limit block 106 is fastened against the inner cavity of the screw groove of the machine. The outer wall of the lifting screw 103 is screwed with a push block 107. The push block 107 facilitates the movement of the limit block 106. The outer wall of the push block 107 is inclined. The inclined setting facilitates the pushing. The side of the multiple sets of limit blocks 106 near the axis is inclined.
[0024] In this embodiment: the lifting screw 103 drives the pushing block 107 to move, and the movement of the pushing block 107 facilitates the movement of the limiting block 106. The moving limiting block 106 abuts against the inner wall of the screw groove of the mechanical equipment for limiting, and the limiting block 106 facilitates the limiting of the bolt rod 101. This allows the device to easily limit the bolt rod 101, prevent the bolt rod 101 from deflecting due to vibration, and facilitate the fastening of the mechanical equipment.
[0025] It should be noted that each of its multiple limit blocks 106 has a threaded groove on the side away from the axis, which facilitates screwing into the threaded groove of the mechanical equipment and is beneficial for screwing and fastening.
[0026] The inner wall of the bolt rod 101 is arranged in a cross shape, and the outer wall of the push block 107 matches the inner wall of the bolt rod 101.
[0027] In this embodiment, the inner wall of the bolt rod 101 is arranged in a cross shape, which can limit and guide the movement of the push block 107, prevent the push block 107 from deflecting, facilitate the movement of the limiting block 106, and make it easier to tighten the bolt rod 101 in the future.
[0028] The outer wall of the limiting block 106 is T-shaped, and the inner wall of the moving groove matches the outer wall of the limiting block 106.
[0029] In this embodiment, the outer wall of the limiting block 106 is T-shaped to facilitate movement within the inner cavity of the moving groove. The moving groove facilitates the limiting block 106 to be positioned, preventing it from falling out of the inner cavity of the moving groove, which is beneficial for subsequent fastening operations.
[0030] The inner wall of the bolt rod 101 is uniformly fixed with support plates 108. The support plates 108 facilitate the support of the bolt rod 101. The top of the support plate 108 is provided with a through hole, and the lifting screw 103 is located on the inner wall of the through hole.
[0031] In this embodiment: the support plate 108 facilitates the support of the bolt rod 101, and the lifting screw 103 can support the support plate 108, thereby effectively increasing the stability of the bolt rod 101 and ensuring the high strength of the bolt rod 101 to the greatest extent.
Claims
1. A detachable bolt for large machinery, comprising a bolt head (100) and a bolt shank (101), characterized in that: The bolt head (100) is located at the top of the bolt rod (101). The outer wall of the bolt rod (101) is provided with a threaded groove, and the inner wall of the threaded groove is provided with an anti-slip strip (102). The bolt head (100) is hexagonal in shape. The top wall of the bolt head (100) is provided with a rotating groove, and the inner wall of the rotating groove is provided with a lifting screw (103). The top of the lifting screw (103) is provided with a screwdriver groove. The bottom wall of the bolt head (100) is provided with a limiting groove, and the inner wall of the limiting groove is provided with a limiting frame (104). The limiting frame (104) is located on the outer wall of the lifting screw (103), and anti-slip pads (105) are provided on both the left and right sides of the bottom wall of the limiting frame (104).
2. The detachable bolt for large machinery according to claim 1, characterized in that: The bolt rod (101) is hollow. The bottom end of the lifting screw (103) is located on the bottom wall of the inner cavity of the bolt rod (101). The outer wall of the bolt rod (101) is evenly provided with moving grooves. The inner wall of each moving groove is provided with a limiting block (106). The outer wall of the lifting screw (103) is provided with a pushing block (107). The outer wall of the pushing block (107) is inclined. The multiple sets of limiting blocks (106) are inclined on the side near the axis.
3. A detachable bolt for large machinery according to claim 2, characterized in that: The inner wall of the bolt rod (101) is arranged in a cross shape, and the outer wall of the push block (107) matches the inner wall of the bolt rod (101).
4. A detachable bolt for large machinery according to claim 2, characterized in that: The outer wall of the limiting block (106) is T-shaped, and the inner wall of the moving groove matches the outer wall of the limiting block (106).
5. A detachable bolt for large machinery according to claim 2, characterized in that: The inner wall of the bolt rod (101) is uniformly provided with support plates (108), and the top of the support plate (108) is provided with a through hole. The lifting screw (103) is located on the inner wall of the through hole.