Left-hand and right-hand thread limiting lock bolt fastener

Abstract

The invention discloses a left-hand and right-hand thread limiting lock bolt fastener, and particularly relates to the technical field of bolt fasteners, the left-hand and right-hand thread limiting lock bolt fastener comprises a bolt body, a fixing assembly is arranged on one side of the bolt body, a guide assembly is rotatably mounted on the fixing assembly, a gear sleeve is connected to the bottom of the guide assembly in a sleeving manner, and a spring is supported at the top end of the gear sleeve; a locking assembly installed on the guide assembly is arranged at the top end of the spring, a jacking and fixing assembly is installed on the fixing assembly, and a locking button connected to the jacking and fixing assembly in a jacking mode is installed at the top end of the fixing assembly. Through the structural design of meshing of the gear sleeve and the top of the bolt body, downward pressing of the spring, assisted rotation of the guide assembly and limiting of the jacking and fixing assembly and the locking button, the bolt has the advantages of enhancing the bolt fixing effect, limiting and preventing looseness and facilitating installation, adjustment and looseness detection.

Description

Technical Field

[0001] The present invention relates to the technical field of bolt fasteners, and more particularly to a left-handed and right-handed threaded limiting and anti-loosening bolt fastener. Background Art

[0002] Bolt fasteners, as fundamental connecting elements, are used in a wide range of applications in modern industry and daily life. From the construction of large buildings and bridges to the assembly of various mechanical equipment and the installation of household items, bolts play a critical role. Their performance directly affects the stability and safety of the entire structure or equipment.

[0003] Commonly used bolt fasteners currently face numerous challenges in practical use. First, ordinary bolts are prone to loosening under complex operating conditions such as vibration and impact. For example, the intense vibrations generated by an automobile engine during operation can gradually loosen connecting bolts, causing friction and wear between components, leading to reduced engine performance and, in severe cases, even engine failure. In the aerospace sector, loose bolts can have catastrophic consequences, threatening aircraft safety.

[0004] Second, existing anti-loosening technologies, such as double-nut anti-loosening and cotter pin anti-loosening, while effective to a certain extent, have limitations. Double-nut anti-loosening increases structural weight and cost, and its effectiveness is significantly affected by the tightening torque of the nut. Cotter pin anti-loosening is difficult to apply in some high-precision or space-constrained applications, and can also cause the cotter pin to deform or fall off due to long-term vibration, thus losing its anti-loosening effect.

[0005] Third, during the installation process, it is very difficult to precisely control the tightening degree of bolts. Undertightening can lead to a loose connection, affecting structural performance; overtightening can cause fatigue fractures in the bolts, reducing their service life. Furthermore, existing bolt loosening detection methods lack intuitive and effective means after installation, making it difficult to detect loose bolts early. These problems often go unnoticed until obvious failures or accidents occur, resulting in significant losses.

[0006] Therefore, a left-handed and right-handed threaded limiting and anti-loosening bolt fastener is proposed. Summary of the Invention

[0007] In order to overcome the above-mentioned defects of the prior art, the present invention provides a left-handed and right-handed threaded limiting and anti-loosening bolt fastener to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a left-handed and right-handed threaded limit-locking and anti-loosening bolt fastener, comprising a bolt body, a fixing assembly provided on one side of the bolt body, a guide assembly rotatably mounted on the fixing assembly, a gear sleeve sleeved on the bottom of the guide assembly, a spring supported on the top of the gear sleeve, a locking assembly mounted on the guide assembly provided on the top of the spring, a top fixing assembly installed on the fixing assembly, and a locking button connected to the top fixing assembly installed on the top of the fixing assembly.

[0009] Preferably, the bolt body includes a screw rod, a pressure plate, a toothed plate and a hexagonal head, the top of the screw rod is coaxially provided with a pressure plate, the top of the pressure plate is coaxially provided with a toothed plate, and the top of the toothed plate is coaxially provided with a hexagonal head.

[0010] Preferably, the fixing assembly includes a bottom plate, a support plate and a top plate, the bottom plate is welded with the support plate, and the top plate is welded with the top end of the support plate.

[0011] Preferably, a screw hole for screwing with the top fixing component is provided at the top of the support plate, a lock hole for installing a locking button is provided at the top of the screw hole, and axial holes are provided on both the bottom plate and the top plate, and the two axial holes are coaxially arranged.

[0012] Preferably, the guide assembly includes a gear rod, a straight rod, a rotating head and a through hole, the straight rod is coaxially arranged at the top end of the gear rod, the rotating head is arranged at the top end of the straight rod, and the through hole is opened on the straight rod.

[0013] Preferably, an annular scale is provided on the top plate outside the straight rod, and the through hole cooperates with the annular scale.

[0014] Preferably, the locking assembly includes a first clamping block, a second clamping block and a screw, and the first clamping block and the second clamping block are fixed to the gear rod by the screw.

[0015] Preferably, tooth grooves are formed on the inner sides of the first clamping block and the second clamping block, and the tooth grooves are engaged with the gear rod.

[0016] Preferably, the fixing assembly includes a screw rod, a tightening head, a center of gravity adjustment block and a knob. The screw rod is screwed into the rotary hole. The tightening head is rotatably installed on one end of the screw rod. The center of gravity adjustment block is fixed on the bottom of the tightening head. The knob is installed on the other end of the screw rod.

[0017] The technical effects and advantages of the present invention are as follows: 1. The gear sleeve engages with the top of the bolt body and the spring presses down to further tighten the bolt body to avoid insecure installation. The guide assembly can increase the turning force arm, making the bolt body easier to rotate and improving the fixing effect.

[0018] 2. The top fixing component is connected to the guide component to limit the rotation of the guide component, thereby preventing the rotation of the gear sleeve. Since the gear sleeve engages with the top of the bolt body, the bolt body is limited to prevent it from loosening. The locking button fixes the top fixing component to further improve the fixing effect of the guide component and enhance the anti-loosening performance.

[0019] 3. The hexagonal head facilitates tightening the screw. The pressure plate supports the gear sleeve, ensuring that the sleeve exerts downward pressure on the bolt body, improving installation security. The gear plate engages with the gear sleeve, and the guide assembly can be used to loosen or tighten the bolt body, and it can adapt to different installation heights. The guide assembly's gear rod allows the gear sleeve to be raised and lowered and rotated synchronously, conveniently adjusting the bolt body's screw-in depth. The through hole facilitates adjustment of the rotation arm, making operation more labor-saving.

[0020] 4. By coordinating the annular scale on the top plate outside the straight rod with the through hole, after the bolt body is fixed, the through hole points to the fixed scale. By checking whether the through hole points to the fixed scale and whether it changes, it can be discovered in time whether the bolt body is loose.

[0021] 5. The installation height of the guide assembly can be adjusted through the locking assembly, which changes the pressure of the spring on the gear sleeve to ensure that the gear sleeve is firmly pressed down on the pressure plate. The center of gravity adjustment block of the fixing assembly ensures that the direction of the clamping slot of the tightening head remains unchanged, so that the tightening head can effectively limit the rotation of the gear rod and improve the limiting effect on the bolt body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a structural schematic diagram of the bolt body of the present invention.

[0024] Figure 3 It is a schematic diagram of the connection structure of the fixing assembly of the present invention.

[0025] Figure 4 It is a schematic diagram of the guide assembly connection structure of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the guide assembly of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the top fixing component of the present invention.

[0028] The figures are marked as follows: 1. Bolt body; 101. Screw; 102. Pressure plate; 103. Toothed disc; 104. Hexagonal head; 2. Fixing assembly; 201. Base plate; 202. Support plate; 203. Top plate; 3. Guide assembly; 301. Gear rod; 302. Straight rod; 303. Rotating head; 304. Through hole; 4. Gear sleeve; 5. Spring; 6. Locking assembly; 601. First clamping block; 602. Second clamping block; 7. Top fixing assembly; 701. Screw; 702. Tightening head; 703. Center of gravity adjustment block; 704. Knob; 8. Locking button. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] As attached Figures 1-6 The shown embodiment is a left-handed and right-handed threaded limit anti-loosening bolt fastener, comprising a bolt body 1, a fixing assembly 2 being provided on one side of the bolt body 1, a guide assembly 3 being rotatably mounted on the fixing assembly 2, a toothed sleeve 4 being sleeved on the bottom of the guide assembly 3, a spring 5 being supported on the top of the toothed sleeve 4, a locking assembly 6 mounted on the guide assembly 3 being provided on the top of the spring 5, a top fixing assembly 7 being installed on the fixing assembly 2, and a locking button 8 being mounted on the top fixing assembly 7 being mounted on the top of the fixing assembly 2.

[0031] In a specific implementation, by installing the fixing component 2 on one side of the installation location of the bolt body 1, and controlling the distance between the axis of the toothed sleeve 4 and the axis of the bolt body 1 when the toothed sleeve 4 is engaged with the top of the bolt body 1, the position of the fixing component 2 can be accurately installed in advance. After the installation is completed, when the bolt body 1 is installed, the bottom of the bolt body 1 is inserted into the connected screw hole and rotated, and the toothed sleeve 4 is located above the bolt body 1 when the bolt body 1 is installed. After the bolt body 1 is tightened, the toothed sleeve 4 is lowered and pressed onto the bolt body 1 and engaged with the bolt body 1. Then, by rotating from the top of the guide component 3, the toothed sleeve 4 is rotated, and during the rotation, it is pressed down by the spring 5, so that the bolt can be fixed without further rotation. The main body 1 is tightened to prevent the bolt body 1 from being installed loosely, and the guide component 3 is connected to a wrench or crowbar to increase the turning force arm, thereby making the rotation of the bolt body 1 easier and further improving the fixing effect. After the bolt body 1 is completely fixed, the top fixing component 7 is rotated so that the top fixing component 7 is connected to the guide component 3, thereby preventing the guide component 3 from still being able to rotate, making it difficult for the gear sleeve 4 to rotate. Since the gear sleeve 4 is engaged with the top of the bolt body 1, the bolt body 1 no longer rotates, thereby achieving limiting and preventing the bolt body 1 from loosening after installation. Finally, the top fixing component 7 is fixed by tightening the locking button 8, so that the top fixing component 7 no longer rotates, thereby further improving the fixing effect of the guide component 3.

[0032] The bolt body 1 includes a screw rod 101 , a pressure plate 102 , a toothed disc 103 and a hexagonal head 104 . The pressure plate 102 is coaxially arranged on the top of the screw rod 101 , the toothed disc 103 is coaxially arranged on the top of the pressure plate 102 , and the hexagonal head 104 is coaxially arranged on the top of the toothed disc 103 .

[0033] The screw rod 101 is screwed into the corresponding screw hole by the arrangement of the hexagonal head 104, and the pressure plate 102 is arranged so that the gear sleeve 4 can be supported when it is meshed with the gear plate 103. Therefore, under the downward pressure of the spring 5 on the gear sleeve 4, the gear sleeve 4 always exerts downward pressure on the pressure plate 102, thereby ensuring that the entire bolt body 1 is always subjected to the top pressure and is difficult to be rotated, thereby improving the firmness of the installation. The gear plate 103 is engaged with the gear sleeve 4 to ensure that the bolt body 1 after installation rotates synchronously with the gear sleeve 4. When the rotation of the gear sleeve 4 is fixed, it can limit the rotation of the gear plate 103 to prevent loosening. At the same time, the gear sleeve 4 can be rotated by the guide assembly 3, and the bolt body 1 can be loosened or tightened. Secondly, since the gear sleeve 4 is pressed on the pressure plate 102 and meshed with the gear plate 103, the gear sleeve 4 can limit the bolt body 1 when it is installed at any height.

[0034] The fixing assembly 2 includes a bottom plate 201 , a support plate 202 and a top plate 203 . The support plate 202 is welded to the bottom plate 201 , and the top plate 203 is welded to the top of the support plate 202 .

[0035] The top of the support plate 202 is provided with a screw hole for screwing with the top fixing component 7, and the top of the screw hole is provided with a lock hole for installing the locking button 8, and the bottom plate 201 and the top plate 203 are both provided with axial holes, and the two axial holes are coaxially arranged.

[0036] During specific implementation, through the setting of two axial holes, bearings are installed in both axial holes, and both bearings are sleeved in the corresponding fittings of the guide assembly 3, so as to fix the position of the guide assembly 3 and enable the guide assembly 3 to rotate. The opening of the rotary hole is used to install the top fixing assembly 7, and enables the top fixing assembly 7 to extend and retract when rotating in the rotary hole, so that by rotating the top fixing assembly 7, one end of the top fixing assembly 7 can be connected to the guide assembly 3, and the opening of the lock hole can tighten the rotation of the top fixing assembly 7 by rotating the locking button 8, and the bottom end of the locking button 8 passes through the lock hole and is screwed into the rotary hole, thereby preventing the top fixing assembly 7 from continuing to rotate.

[0037] The guide assembly 3 includes a gear rod 301 , a straight rod 302 , a rotating head 303 and a through hole 304 . The straight rod 302 is coaxially arranged on the top of the gear rod 301 . The rotating head 303 is arranged on the top of the straight rod 302 . The through hole 304 is opened on the straight rod 302 .

[0038] An annular scale is provided on the top plate 203 outside the straight rod 302 , and the through hole 304 cooperates with the annular scale.

[0039] In specific implementation, through the setting of the toothed rod 301, the toothed sleeve 4 is sleeved on the toothed rod 301, so that the toothed sleeve 4 can be raised and lowered, thereby enabling the toothed sleeve 4 to limit the bolt bodies 1 installed at different heights. At the same time, the toothed sleeve 4 can be rotated synchronously with the toothed rod 301, so that the toothed sleeve 4 can be rotated by rotating the rotating head 303 with a wrench or inserting a crowbar into the through hole 304, so that the toothed sleeve 4 can be rotated by the toothed rod 301 to adjust the screw-in depth of the bolt body 1, and the rotation force arm can be easily adjusted, making the rotation more labor-saving and improving the convenience of further tightening the bolt body 1. The opening of the through hole 304 can also play a pointing role. After the bolt body 1 is fixed, the direction of the through hole 304 is fixed, so that it can point to the corresponding scale on the annular scale. Therefore, after long-term use, by checking whether the scale pointed by the through hole 304 has changed, it is possible to timely detect whether the installation of the bolt body 1 is loose.

[0040] The locking assembly 6 includes a first clamping block 601 , a second clamping block 602 and screws. The first clamping block 601 and the second clamping block 602 are fixed to the gear rod 301 via the screws.

[0041] The first clamping block 601 and the second clamping block 602 are both provided with tooth grooves on their inner sides, and the tooth grooves are engaged with the gear rod 301 .

[0042] During specific implementation, the locking assembly 6 is fixed on the gear rod 301 by pressing the first clamping block 601 and the second clamping block 602 onto the gear rod 301, the tooth grooves cooperate with the teeth on the gear rod 301, and then connected to the first clamping block 601 and the second clamping block 602 by screws. By adjusting the installation height of the guide assembly 3, the pressure of the spring 5 on the gear sleeve 4 can be changed, thereby ensuring that when the gear sleeve 4 limits the bolt body 1, the gear sleeve 4 can be firmly pressed down on the pressure plate 102.

[0043] The fixing assembly 7 includes a screw rod 701, a tightening head 702, a center of gravity adjustment block 703 and a knob 704. The screw rod 701 is screwed into the screw hole. The tightening head 702 is rotatably installed on one end of the screw rod 701. The center of gravity adjustment block 703 is fixed at the bottom of the tightening head 702. The other end of the screw rod 701 is installed with a knob 704.

[0044] When the screw rod 701 is rotated, the screw rod 701 is rotated in the screw hole, so that the position of the tightening head 702 can be adjusted so that the tightening head 702 can be connected to the toothed rod 301. The end of the tightening head 702 is provided with a groove that cooperates with the toothed rod 301, and the setting of the center of gravity adjustment block 703 ensures that the direction of the groove of the tightening head 702 remains unchanged when the screw rod 701 is rotated arbitrarily. When the tightening head 702 is connected to the toothed rod 301, the groove is directly pressed against the teeth on the toothed rod 301, thereby limiting the rotation of the toothed rod 301, thereby avoiding that the toothed rod 301 will rotate after the bolt body 1 is limited, thereby affecting the rotation limitation of the bolt body 1, thereby further improving the limiting effect of the bolt body 1.

[0045] Finally, a few points should be explained: First, in the description of the present invention, it should be noted that, unless otherwise specified or limited, the terms "mounted", "connected", and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The drawings of the embodiments disclosed in the present invention only involve structures related to the embodiments disclosed in the present invention. Other structures may refer to conventional designs. The same embodiment and different embodiments of the present invention may be combined with each other without conflict. Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A left-handed threaded locking bolt fastener, comprising a bolt body (1), characterized in that: A fixing assembly (2) is provided on one side of the bolt body (1), a guide assembly (3) is rotatably mounted on the fixing assembly (2), a tooth sleeve (4) is sleeved on the bottom of the guide assembly (3), a spring (5) is supported on the top of the tooth sleeve (4), a locking assembly (6) mounted on the guide assembly (3) is provided on the top of the spring (5), a top fixing assembly (7) is installed on the fixing assembly (2), and a locking button (8) connected to the top fixing assembly (7) is installed on the top of the fixing assembly (2).

2. The left-handed threaded locking bolt fastener according to claim 1, characterized in that: The bolt body (1) comprises a screw rod (101), a pressure plate (102), a toothed disc (103) and a hexagonal head (104); the top end of the screw rod (101) is coaxially provided with the pressure plate (102); the top end of the pressure plate (102) is coaxially provided with the toothed disc (103); and the top end of the toothed disc (103) is coaxially provided with the hexagonal head (104).

3. The left-handed threaded locking bolt fastener according to claim 2, characterized in that: The fixing assembly (2) comprises a bottom plate (201), a support plate (202) and a top plate (203); the support plate (202) is welded to the bottom plate (201); and the top plate (203) is welded to the top of the support plate (202).

4. The left-handed threaded locking bolt fastener according to claim 3, characterized in that: The top of the support plate (202) is provided with a screw hole for screwing with the top fixing component (7), the top of the screw hole is provided with a lock hole for installing a locking button (8), and both the bottom plate (201) and the top plate (203) are provided with an axial hole, and the two axial holes are coaxially arranged.

5. The left-handed threaded position-limiting anti-loosening bolt fastener according to claim 4, characterized in that: The guide assembly (3) comprises a gear rod (301), a straight rod (302), a rotating head (303) and a through hole (304); the straight rod (302) is coaxially arranged at the top end of the gear rod (301); the rotating head (303) is arranged at the top end of the straight rod (302); and the through hole (304) is opened on the straight rod (302).

6. The left-handed threaded position-limiting anti-loosening bolt fastener according to claim 5, characterized in that: An annular scale is provided on the top plate (203) outside the straight rod (302), and the through hole (304) cooperates with the annular scale.

7. The left-handed threaded position-limiting anti-loosening bolt fastener according to claim 6, characterized in that: The locking assembly (6) comprises a first clamping block (601), a second clamping block (602) and a screw, wherein the first clamping block (601) and the second clamping block (602) are fixed to the gear rod (301) via the screw.

8. The left-handed threaded position-limiting anti-loosening bolt fastener according to claim 7, characterized in that: The first clamping block (601) and the second clamping block (602) are both provided with tooth grooves on their inner sides, and the tooth grooves are engaged with the gear rod (301).

9. The left-handed threaded position-limiting anti-loosening bolt fastener according to claim 8, characterized in that: The top fixing assembly (7) comprises a screw rod (701), a tightening head (702), a center of gravity adjustment block (703) and a knob (704), wherein the screw rod (701) is screwed into the screw hole, one end of the screw rod (701) is rotatably mounted with the tightening head (702), the bottom of the tightening head (702) is fixed with the center of gravity adjustment block (703), and the other end of the screw rod (701) is mounted with the knob (704).

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