Gravity fastening bolt

Abstract

The utility model relates to the technical field of bolts, and discloses a gravity fastening bolt which comprises a double-thread screw, a lower gasket, a fixing object, an upper gasket, a lower tightening nut and an upper tightening nut, clockwise rotation threads are arranged on the 2 / 3 portion of the lower portion of the outer wall of the double-thread screw, and anticlockwise rotation threads are arranged on the remaining portion of the upper end of the outer wall of the double-thread screw. The left part of the upper end of the outer wall of the double-thread screw is provided with a reverse rotation thread, the reverse rotation thread is meshed and provided with a lower tightening nut through a surface thread, and the double-thread screw is matched with the lower tightening nut and the upper tightening nut, so that in the rotating and attaching process, the upper tightening nut can be tightened. Due to the fact that the inclined clamping teeth are in the shape of an equilateral right triangle and incline from left to right, when the upper tightening nut is screwed in anticlockwise, the inclined edges of the clamping grooves are perfectly meshed with the inclined clamping teeth, the two nuts can resist against each other and cannot rotate, and the nuts are fixed more firmly through rotation under the influence of gravity or when a fixed object shakes.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a gravity fastening bolt. Background Art

[0002] Bolt: A mechanical part, a cylindrical threaded fastener with a nut. A type of fastener consisting of a head and a screw (a cylinder with external threads), which must be matched with a nut to fasten two parts with through holes. This type of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. Gravity fastening bolts are fasteners used in mechanical equipment and structures, usually used to fix important components to withstand gravity and other external forces. This type of bolt usually uses a larger diameter and strength to ensure that it can withstand a large amount of gravity and torque. When using gravity fastening bolts, it is necessary to ensure that their selection, installation and tightening force meet the corresponding standards and engineering requirements to ensure the safety and reliability of the equipment or structure.

[0003] For example, the Chinese patent "CN215333917U" discloses a gravity-based tightening bolt, which proposes: first, the bolt body is passed through the connecting block to be fixed. While the hand is still holding the bolt body to pass through the connecting block to be fixed, the other hand places a gravity steel ball at the entrance of the gravity drop cavity, and the gravity steel ball is released to allow the gravity steel ball to fall freely. The gravity steel ball will hit the pressure column, and the pressure column will diffuse to the surroundings due to the extrusion of the gravity steel ball. The diffused pressure column will press against the inner wall of the through hole of the connecting block to be fixed through the rubber extrusion layer, so that the bolt body and the connecting block to be fixed are temporarily fixed, freeing the hands of the staff, facilitating the installation of the nut, and achieving the goal that the staff does not need to support the bolt head at the bottom all the time, preventing the tightening bolt from falling out of the through hole under the action of gravity, thereby reducing the work intensity of the staff.

[0004] It can be seen from the above-mentioned device that although the above-mentioned method of setting a gravity steel ball to replace the worker's support during the installation process is proposed, the applicant believes that the following defects still exist:

[0005] Existing bolts are mostly used as expansion bolts when weighing heavy objects or counteracting gravity. Expansion bolts can easily damage the internal structure of objects, and when fixing heavy objects, the expansion body of the expansion bolts can no longer bear the weight after being damaged by gravity. In addition, only relying on expansion bolts to fix objects cannot provide additional adhesion and additional fixed support to counteract gravity, resulting in the problem of weak vertical load support. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies of the prior art, the present utility model provides a gravity fastening bolt, which has the advantages of providing an adsorption force by arranging ring-shaped octopus-leg-like suction cups on the surfaces of the upper and lower gaskets, making the whole bolt and the fixing member an integral body, providing additional fixed support on the vertical plane to counter gravity, and preventing loosening or rotation through the engagement of inclined teeth and the card slot. It solves the problems that most existing bolts use expansion bolts when fixing heavy objects or countering gravity. Expansion bolts are very easy to damage the internal structure of the object, and after the expansion body of the expansion bolt is damaged by gravity during the fixation of heavy objects, it can no longer bear the weight. Moreover, only relying on the expansion bolt to fixedly connect the object cannot provide additional adhesion and additional fixed support to counter gravity, resulting in poor vertical load-bearing support.

[0008] (II) Technical solution

[0009] To achieve the above object, the present utility model provides the following technical solution: A gravity fastening bolt includes a double-threaded screw rod, a lower gasket, a fixed object, an upper gasket, a lower tightening nut, and an upper tightening nut. On the lower 2 / 3 part of the outer wall of the double-threaded screw rod, a forward-rotating thread is provided. On the remaining upper part of the outer wall of the double-threaded screw rod, a reverse-rotating thread is provided. The forward-rotating thread is installed with a lower tightening nut through surface thread engagement, and the reverse-rotating thread is installed with an upper tightening nut through surface thread engagement. On the outer wall above the lower tightening nut, a number of inclined teeth are provided. On the outer wall of the upper tightening nut, a number of card slots are opened, and the inclined teeth are engaged with the card slots.

[0010] Preferably, both the lower tightening nut and the upper tightening nut are hexagonal nuts of the same size. The inclined teeth are arranged in an array on each side of the outer wall of the lower tightening nut, and a number of the inclined teeth are arranged opposite to a number of the card slots.

[0011] Preferably, the inclined teeth are equilateral right-angled triangles, and the inclined side of the inclined teeth is inclined from left to right.

[0012] Preferably, a lower gasket is provided at the lowermost end of the outer wall of the double-threaded screw rod. A number of lower suction cups are annularly opened on the lower surface of the lower gasket, and a number of upper suction cups are annularly opened on the upper surface of the lower gasket.

[0013] Preferably, a fixed object is assembled on the outer wall of the lower gasket, and multiple fixed objects can be stacked and installed.

[0014] Preferably, an upper gasket is provided above the fixed object. A number of fixed object suction cups are annularly arranged on the lower surface of the upper gasket, and the upper surface of the upper gasket is a flat surface.

[0015] Preferably, both the lower gasket and the upper gasket are elastic gaskets, and the upper gasket has multiple thicknesses that can be replaced and adjusted. The upper gasket is fitted and arranged below the lower tightening nut.

[0016] (III) Advantageous Effects

[0017] Compared with the prior art, the present utility model provides a gravity fastening bolt, which has the following advantageous effects:

[0018] 1. For this gravity fastening bolt, through the lower suction cup and the upper suction cup provided on the lower gasket, the lower suction cup and the upper suction cup can provide additional adhesion force, preventing the double-threaded screw from sliding or rotating. The upper suction cup adsorbs the fixed object to increase the friction force and prevent the fixed object from shaking and causing the double-threaded screw to loosen, providing additional fixed support on the vertical plane to counteract gravity.

[0019] 2. For this gravity fastening bolt, through the cooperation between the fixed object suction cup provided on the upper gasket and the lower tightening nut, the fixed object suction cup provided below the upper gasket can increase the adhesion force between the fixed object and the lower tightening nut, preventing loosening or rotation. The close fit between the upper gasket and the lower tightening nut can provide better sealing performance, preventing loosening or leakage of liquid or gas inside the fixed object.

[0020] 3. For this gravity fastening bolt, through the cooperation between the double-threaded screw and the lower tightening nut and the upper tightening nut, during the process of rotational fitting, since the inclined teeth are equilateral right triangles and are inclined from left to right, when the upper tightening nut is screwed in counterclockwise, through the inclined edge of the card slot being perfectly engaged with the inclined teeth, the two nuts are opposed and cannot rotate. Under the influence of gravity or when the fixed object shakes, the nuts are fixed more tightly through rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 It is a schematic diagram of the double-threaded screw structure of the present utility model;

[0023] Figure 3 It is a schematic diagram of the overall exploded view from the bottom looking up of the present utility model;

[0024] Figure 4 It is a schematic diagram of the overall exploded view from the top looking down of the present utility model;

[0025] Figure 5 It is a cross-sectional view of the meshing structure of the lower tightening nut and the upper tightening nut of the present utility model.

[0026] The reference numerals in the drawings are:

[0027] 1. Double-threaded screw; 11. Forward rotation thread; 12. Reverse rotation thread; 2. Lower gasket; 21. Lower suction cup; 22. Upper suction cup; 3. Fixed object; 4. Upper gasket; 41. Fixed object suction cup; 5. Lower tightening nut; 51. Inclined teeth; 6. Upper tightening nut; 61. Card slot. Detailed implementation manners

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part rather than all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-5 , a gravity fastening bolt, comprising a double-threaded screw rod 1, a lower gasket 2, a fixed object 3, an upper gasket 4, a lower tightening nut 5, and an upper tightening nut 6. A clockwise thread 11 is provided on the lower 2 / 3 part of the outer wall of the double-threaded screw rod 1. The clockwise thread 11 cooperates with the nut to rotate clockwise to achieve the effect of tightening and fixing. The remaining part of the upper end of the outer wall of the double-threaded screw rod 1 is provided with a counterclockwise thread 12. The counterclockwise thread 12 cooperates with the nut to rotate counterclockwise to achieve the effect of tightening and fixing. The clockwise thread 11 is installed with the lower tightening nut 5 through surface thread engagement, and the counterclockwise thread 12 is installed with the upper tightening nut 6 through surface thread engagement. This installation method can achieve a two-way fixing function, that is, when the clockwise thread 11 and the counterclockwise thread 12 rotate, the nut will move up or down accordingly, achieving the effect of tightening or loosening. A plurality of inclined teeth 51 are provided on the outer wall above the lower tightening nut 5, and a plurality of slots 61 are opened on the outer wall of the upper tightening nut 6. The inclined teeth 51 are engaged with the slots 61. When the upper tightening nut 6 rotates, the inclined teeth 51 will slide along the direction of the slots 61, so that the connection between the nut 6 and the thread 11 is tighter. The design of the inclined teeth and the slots can increase the connection stability and prevent loosening or natural loosening. The lower tightening nut 5 and the upper tightening nut 6 are both hexagonal nuts of the same size. The plurality of inclined teeth 51 are arranged in an array on each side of the outer wall of the lower tightening nut 5. The plurality of inclined teeth 51 are arranged opposite to the plurality of slots 61. The inclined teeth 51 are equilateral right-angled triangles, and the inclined sides of the inclined teeth 51 are inclined from left to right. The inclined teeth 51 are equilateral right-angled triangles, and their inclined sides are inclined from left to right. When the upper tightening nut 6 rotates, the inclined teeth 51 will slide into the slots 61, making the connection between the two nuts tighter and more stable. This design provides additional resistance to prevent the connection components from loosening or natural loosening. This configuration is commonly used in high-strength fastening applications. It can provide a stronger connection through the mutual engagement of the inclined teeth 51 and the slots 61 and prevent loosening. This design can also facilitate tightening and disassembly.

[0030] The lowermost end of the outer wall of the double-threaded screw rod 1 is provided with a lower gasket 2. A plurality of lower suction cups 21 are annularly arranged on the lower surface of the lower gasket 2, and a plurality of upper suction cups 22 are annularly arranged on the upper surface of the lower gasket 2. A fixture 3 is assembled on the outer wall of the lower gasket 2. This design may be used for specific applications, such as providing additional fixed support against gravity on a vertical surface. The lower suction cups 21 and the upper suction cups 22 can provide additional adhesion to prevent the double-threaded screw rod 1 from sliding or rotating. The upper suction cups 22 adsorb the fixture 3, and the fixture 3 increases the friction force to prevent the fixture from shaking and causing the double-threaded screw rod 1 to become loose. Multiple can be stacked and installed. An upper gasket 4 is arranged above the fixture 3. A plurality of fixture suction cups 41 are annularly arranged on the lower surface of the upper gasket 4. The upper surface of the upper gasket 4 is a flat surface. Both the lower gasket 2 and the upper gasket 4 are elastic gaskets, and the upper gasket 4 is provided with multiple thicknesses that can be replaced and adjusted. This design allows adjustment according to needs to adapt to different connection or installation situations. The use of elastic gaskets can provide a certain buffering and sealing effect when connecting components, and make the suction cups arranged on the surface have stronger adsorption. After being tightened, the air in the suction cups is discharged due to extrusion. The upper gasket 4 with multiple thicknesses that can be replaced and adjusted further provides flexibility. The sizes of the fixtures 3 are different to ensure that the lower tightening nut 5 and the upper tightening nut 6 are at the junction of the double threads. The upper gasket 4 is fitted and arranged below the lower tightening nut 5. This design may be used to increase the stability and tightness of the connection. The fixture suction cups 41 below the upper gasket 4 can increase the adhesion between the fixture 3 and the lower tightening nut 5 to prevent loosening or rotation. The close fit of the upper gasket 4 and the lower tightening nut 5 can provide better tightness to prevent the leakage of liquid or gas in the fixture 3 or loosening.

[0031] Working principle: First, when using this bolt to fix an object, first sleeve the lower gasket 2 on the outer wall of the double-threaded screw rod 1, then insert the double-threaded screw rod 1 into the screw hole of the fixed object 3 and the fixing place. After the double-threaded screw rod 1 is inserted, select an upper gasket 4 with a thickness suitable for the sum of the thickness of the fixed object 3 and the fixing place, and place the upper gasket 4 on the outer wall at the insertion end of the double-threaded screw rod 1. Then, first rotate the lower tightening nut 5 counterclockwise to the forward-threaded part 11 at 1 / 3, and then rotate it in the opposite direction so that the lower tightening nut 5 fits and fixes on the outer wall of the upper gasket 4. At this time, when the lower tightening nut 5 is completely tightened by a wrench, the fixed object 3 is firmly fixed. The lower gasket 2 adsorbs the fixed object and the upper threaded screw rod 1 through the lower suction cup 21 and the upper suction cup 22, providing additional adhesion to prevent the double-threaded screw rod 1 from sliding or rotating, and counteracting the influence of gravity through the adsorption force. The upper gasket 4 also firmly adsorbs to the fixed object 3 through the fixed object suction cup 41. At this time, the double-threaded screw rod 1, the fixed object 3, the upper gasket 4, and the lower gasket 2 become a whole, and the upper surface of the upper gasket 4 is completely fitted and fixed with the lower tightening nut 5. At this time, if affected by gravity or shaking, the lower tightening nut 5 needs to counteract the adhesion of this whole. After the fixing is completed, rotate the upper tightening nut 6 counterclockwise to the reverse-threaded part 12 at 1 / 3. During the process of rotation and fitting, since the inclined tooth 51 is an equilateral right triangle and is inclined from left to right, when the upper tightening nut 6 is screwed in counterclockwise, it perfectly meshes with the inclined tooth 51 through the inclined side of the card slot 61. After the inclined tooth 51 is meshed, since the lower tightening nut 5 wants to loosen, it needs to be rotated counterclockwise. When the lower tightening nut 5 is rotated counterclockwise, due to the left side of the inclined tooth 51 protruding upward into the card slot 61 of the upper tightening nut 6, rotating counterclockwise needs to pull the upper tightening nut 6 to rotate counterclockwise together. At this time, the upper tightening nut 6 is located at the reverse-threaded part 12, and being driven to rotate counterclockwise will tighten downward and squeeze against the lower tightening nut 5 and cannot rotate. And the inclined tooth 51 is an equilateral right triangle, and the triangle has stability. If the lower tightening nut 5 is forcibly rotated, it will be damaged and cause thread slipping, resulting in the upper tightening nut 6 rotating more and more tightly counterclockwise. If it shakes and causes clockwise rotation, then the lower tightening nut 5 is exactly located at the forward-threaded part 11, and clockwise rotation will make the lower tightening nut 5 more tightly fixed, firmly fixing the fixed object.

[0032] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gravity fastening bolt, comprising a double-threaded screw (1), a lower gasket (2), a fixing (3), an upper gasket (4), a lower tightening nut (5), and an upper tightening nut (6), characterized in that: The lower 2 / 3 of the outer wall of the double-threaded screw (1) is provided with a clockwise thread (11), and the remaining portion of the upper end of the outer wall of the double-threaded screw (1) is provided with a counterclockwise thread (12). The clockwise thread (11) is mounted with a lower tightening nut (5) through surface thread engagement, and the counterclockwise thread (12) is mounted with an upper tightening nut (6) through surface thread engagement. The upper outer wall of the lower tightening nut (5) is provided with a plurality of inclined latch teeth (51), and the outer wall of the upper tightening nut (6) is provided with a plurality of latch grooves (61), and the inclined latch teeth (51) are engaged with the latch grooves (61).

2. A gravity fastening bolt according to claim 1, characterized in that: The lower tightening nut (5) and the upper tightening nut (6) are both hexagonal nuts of the same size, the inclined latch teeth (51) are arranged in an array on each side of the outer wall of the lower tightening nut (5), and a plurality of the inclined latch teeth (51) are arranged opposite to a plurality of the latch grooves (61).

3. A gravity fastening bolt according to claim 1, characterized in that: The inclined latch tooth (51) is an equilateral right triangle, and the inclined side of the inclined latch tooth (51) is inclined from left to right.

4. A gravity fastening bolt according to claim 1, characterized in that: A lower gasket (2) is provided at the lowermost end of the outer wall of the double-thread screw (1), a plurality of lower suction cups (21) are provided in an annular manner on the lower surface of the lower gasket (2), and a plurality of upper suction cups (22) are provided in an annular manner on the upper surface of the lower gasket (2).

5. A gravity fastening bolt according to claim 1, characterized in that: The outer wall of the lower gasket (2) is equipped with a fixing (3), and a plurality of the fixings (3) can be installed in a stacked manner.

6. A gravity fastening bolt according to claim 1, characterized in that: An upper gasket (4) is arranged above the fixed object (3), a plurality of fixed object suction cups (41) are arranged in a ring shape on the lower surface of the upper gasket (4), and the upper surface of the upper gasket (4) is a flat surface.

7. A gravity fastening bolt according to claim 1, characterized in that: The lower gasket (2) and the upper gasket (4) are both elastic gaskets, and the upper gasket (4) is provided with a variety of replaceable and adjustable thicknesses, and the upper gasket (4) is arranged to fit below the lower tightening nut (5).

Images