Hexagonal flange bolt

Abstract

The utility model belongs to the technical field of bolts, and particularly relates to a hexagonal flange bolt which comprises a bolt head. The screw rod and the bolt head are integrally formed; the flange plate is arranged on the screw rod; the sealing structure is arranged on the flange plate and used for improving the overall sealing effect of the bolt; the bolt further comprises a lubricating structure which is arranged on the bolt head, communicated with the screw rod and used for lubricating threads on the screw rod. The bolt has the beneficial effects that the lubricating structure is arranged, located on the bolt head and communicated with the screw rod, in the maintenance process, threads on the screw rod can be easily lubricated, friction between the threads can be reduced through lubrication, the torque requirement during installation is lowered, thread abrasion can be effectively prevented, the service life of the bolt is prolonged, and the service life of the bolt is prolonged. And by arranging the lubricating structure, the bolt can be conveniently disassembled through lubricating oil after the bolt is rusted.

Description

Technical Field

[0001] The present application belongs to the technical field of bolts, and in particular relates to a hexagonal flange bolt. Background Art

[0002] Hexagonal flange bolts are fasteners composed of a hexagonal head, a flange and a screw. Their "ratio of support area to stress area" is greater than that of ordinary hexagonal head bolts. Therefore, this type of bolt can withstand a higher preload and has better anti-loosening performance. Therefore, it is widely used in automobile engines, heavy machinery and other products.

[0003] The patent with publication number CN220302520U discloses a hexagonal flange bolt, wherein the bottom end of bolt one is connected to a self-locking, snap-fit ​​rotatable bolt two through a self-locking connection mechanism, bolt two is provided with at least one, and the bottom end of bolt two is connected to a self-locking bolt three through a self-locking connection mechanism, and the threads on the outer walls of bolt one, bolt two and bolt three constitute a complete bolt outer wall thread structure.

[0004] The above patent realizes self-locking by setting a self-locking connection structure, thereby reducing the impact of the external environment on the self-locking connection mechanism. However, in actual use, although the interior can be protected, the gap between the hexagonal head of the bolt and the surface of the shell is still very easy to be infiltrated by rainwater, which will lead to rust and corrosion, making disassembly difficult. In severe cases, it may even cause the bolt to break and ultimately become impossible to disassemble. Improvements are needed. Utility Model Content

[0005] The purpose of the present application is to provide a hexagonal flange bolt that can solve the above-mentioned problems.

[0006] The purpose of this application is to provide a hexagonal flange bolt, comprising:

[0007] Bolt head;

[0008] A screw rod, wherein the screw rod is integrally formed with the bolt head;

[0009] A flange is arranged on the screw;

[0010] The sealing structure is arranged on the flange to improve the sealing effect of the bolt as a whole;

[0011] It also includes a lubrication structure, which is arranged on the bolt head and connected to the screw rod and is used to lubricate the threads on the screw rod.

[0012] By using the above-mentioned hexagonal flange bolt and setting a sealing structure on the flange, the sealing effect of the bolt connection can be significantly improved, and the bolt can be protected from being infiltrated by rainwater, which will cause rust and corrosion. By setting a lubrication structure, which is located on the bolt head and connected to the screw, the thread on the screw can be easily lubricated during maintenance. Lubrication can not only reduce friction between threads and reduce torque requirements during installation, but also effectively prevent thread wear and extend the service life of the bolt. At the same time, the bolt can also be easily disassembled by lubricating oil after rust.

[0013] In addition, by setting up the flange, a larger contact area is provided, so that the bolts can better disperse and resist complex loads such as shear force and bending moment while bearing axial tension.

[0014] Furthermore, the lubrication structure comprises:

[0015] An oil injection channel is arranged inside the screw;

[0016] An oil outlet is arranged on the screw rod, and an oil guide channel is arranged between the oil outlet and the oil injection channel;

[0017] An oil inlet cavity is provided on the bolt head;

[0018] The top end of the oil injection channel is communicated with the oil inlet cavity.

[0019] The oil injection channel is set inside the screw to ensure that the lubricating oil can be directly delivered to the thread area of ​​the screw, realizing accurate lubrication of the thread. The oil outlet and the oil injection channel are connected through the oil guide channel, so that the lubricating oil can flow out smoothly and cover the thread surface, thereby reducing the friction and wear between the threads and improving the installation and removal efficiency of the bolt. By setting the oil inlet chamber on the bolt head, the user can easily inject lubricating oil into the oil injection channel through the bolt head without removing the bolt, simplifying the lubrication operation and improving work efficiency.

[0020] In addition, by regularly injecting lubricating oil into the oil inlet chamber, the service life of the bolts can be extended, the frequency of replacement due to wear can be reduced, maintenance costs can be reduced, and the overall operating efficiency of the equipment can be improved. The risk of leakage at the bolted joints can be reduced, and the safety of the system can be improved.

[0021] Further: the bolt head is provided with an opening, the opening is communicated with the oil inlet chamber, and an elastic sealing member is provided at the opening.

[0022] The setting of the opening allows the user to directly inject lubricating oil into the oil inlet chamber through the outside of the bolt head without removing the bolt, thereby improving the convenience of oil filling. By setting an elastic seal at the opening, the lubricating oil can be prevented from leaking, and at the same time, external impurities can be prevented from entering the oil inlet chamber, thereby protecting the cleanliness and service life of the bolt.

[0023] Furthermore, the elastic sealing element comprises:

[0024] Sealing plug;

[0025] A spring, which is arranged at the bottom of the sealing plug and connected to the bottom of the oil inlet cavity;

[0026] An oil guide groove is provided on a side wall of the opening;

[0027] When the sealing plug drives the spring to be compressed, the lubricating oil enters the oil inlet cavity from the oil guide groove.

[0028] Under normal circumstances, the sealing plug is tightly sealed by the pressure of the spring, effectively preventing the leakage of lubricating oil and the entry of external impurities. When oil filling is required, it is only necessary to push the sealing plug with external force (such as an oil filling tool) to cause the spring to compress. At this time, the lubricating oil can smoothly enter the oil inlet chamber through the oil guide groove on the side wall of the opening. After the oil filling is completed, the external force is removed, and the sealing plug automatically resets under the action of the spring, re-closes the opening, and restores the sealing state, realizing the perfect combination of automatic sealing and lubrication.

[0029] At the same time, the combination of the sealing plug and the spring ensures that the opening is in a sealed state in most cases and is only opened briefly when oil is being filled, which greatly reduces the risk of lubricating oil leakage and ensures the stability and reliability of the lubrication system. Users do not need to worry about forgetting to close the opening or not closing it tightly after oil filling, thereby improving the convenience and safety of the oil filling experience.

[0030] Furthermore, the sealing structure includes an annular groove arranged at the bottom of the flange, and a sealing gasket is arranged in the annular groove.

[0031] The sealing gasket is located between the flange and the connection surface, which can fill the tiny gap between the flange and the connection surface to prevent the leakage of gas, liquid or solid particles. The sealing gasket not only plays a sealing role, but also provides a certain elastic buffer during the bolt tightening process, which helps to evenly distribute the stress generated by the bolt connection, reduce the looseness or damage of the connection caused by stress concentration, and improve the stability and reliability of the bolt connection.

[0032] Furthermore, a limiting groove is provided at the bottom of the sealing gasket, a speaker sealing ring is provided in the limiting groove, and the speaker sealing ring is sleeved outside the screw rod.

[0033] By setting up the speaker sealing ring, it can fit tightly with the screw to form a tighter sealing interface. When the screw is gradually tightened, the speaker sealing ring can be continuously tightened toward the limit groove on one side of the sealing gasket due to contraction. At this time, the tightened speaker sealing ring can effectively block external rainwater and further improve the sealing effect.

[0034] The beneficial effects of this application are:

[0035] 1. By setting a sealing structure on the flange, the sealing effect of the bolt connection can be significantly improved, and the bolts can be protected from being infiltrated by rainwater, which will cause rust and corrosion;

[0036] 2. By setting up a lubrication structure, which is located on the bolt head and connected to the screw, the threads on the screw can be easily lubricated during maintenance. Lubrication can not only reduce the friction between the threads and reduce the torque requirement during installation, but also effectively prevent thread wear and extend the service life of the bolt;

[0037] 3. By setting up a lubrication structure, the bolts can be easily disassembled by lubricating oil after they are rusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the utility model;

[0039] Figure 2 It is a cross-sectional view of the utility model.

[0040] The reference numerals in the figure are: 100, bolt head; 200, screw; 300, flange; 400, sealing structure; 410, annular groove; 420, sealing gasket; 430, limit slot; 440, horn seal; 500, lubrication structure; 510, oil filling channel; 520, oil outlet; 521, oil guide channel; 530, oil inlet chamber; 540, opening; 550, elastic seal; 551, sealing plug; 552, spring; 553, oil guide groove. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0042] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0043] The hexagonal flange bolt provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0044] Embodiment 1:

[0045] like Figure 1 and Figure 2 As shown, the embodiment of the present application provides a hexagonal flange bolt, comprising:

[0046] Bolt head 100;

[0047] A screw rod 200, wherein the screw rod 200 and the bolt head 100 are integrally formed;

[0048] The flange 300 is arranged on the screw 200;

[0049] The sealing structure 400 is provided on the flange 300 to improve the sealing effect of the bolt as a whole;

[0050] The lubrication structure 500 is also included, which is arranged on the bolt head 100 and communicated with the screw rod 200 for lubricating the threads on the screw rod 200.

[0051] In some implementations of the embodiments of the present application, Figure 1 As shown, by using the above-mentioned hexagonal flange bolt, by setting a sealing structure 400 on the flange 300, the sealing effect of the bolt connection can be significantly improved, and the bolt can be protected from being infiltrated by rainwater, which will cause rust and corrosion. By setting a lubrication structure 500, which is located on the bolt head 100 and connected to the screw 200, the thread on the screw 200 can be easily lubricated during maintenance. Lubrication can not only reduce the friction between the threads and reduce the torque requirement during installation, but also effectively prevent thread wear and extend the service life of the bolt. At the same time, the bolt can also be easily disassembled by lubricating oil after rust.

[0052] In addition, by providing the flange 300, a larger contact area is provided, so that the bolt can better disperse and resist complex loads such as shear force and bending moment while bearing axial tension.

[0053] Embodiment 2:

[0054] An embodiment of the present application provides a hexagonal flange face bolt. In addition to the above-mentioned technical features, the hexagonal flange face bolt of the embodiment of the present application also includes the following technical features.

[0055] like Figure 1 and Figure 2 As shown, the lubrication structure 500 includes:

[0056] The oil injection channel 510 is disposed inside the screw 200;

[0057] The oil outlet 520 is provided on the screw 200 , and an oil guide channel 521 is provided between the oil outlet 520 and the oil injection channel 510 ;

[0058] The oil inlet chamber 530 is provided on the bolt head 100;

[0059] The top end of the oil injection channel 510 is connected to the oil inlet chamber 530 .

[0060] In the embodiment of the present application, the oil injection channel 510 is arranged inside the screw 200, ensuring that the lubricating oil can be directly delivered to the threaded area of ​​the screw 200, realizing accurate lubrication of the thread, and the oil outlet 520 is connected to the oil injection channel 510 through the oil guide channel 521, so that the lubricating oil can flow out smoothly and cover the thread surface, thereby reducing the friction and wear between the threads and improving the installation and removal efficiency of the bolt. By arranging the oil inlet chamber 530 on the bolt head 100, the user can easily inject lubricating oil into the oil injection channel 510 through the bolt head 100 without removing the bolt, simplifying the lubrication operation and improving work efficiency.

[0061] In addition, by regularly injecting lubricating oil into the oil inlet chamber 530, the service life of the bolts can be extended, the frequency of replacement due to wear can be reduced, maintenance costs can be reduced, and the overall operating efficiency of the equipment can be improved. The risk of leakage at the bolted joints can be reduced, and the safety of the system can be improved.

[0062] Furthermore, the bolt head 100 is provided with an opening 540 , the opening 540 is communicated with the oil inlet chamber 530 , and an elastic sealing member 550 is provided at the opening 540 .

[0063] The setting of the opening 540 allows the user to directly inject lubricating oil into the oil inlet chamber 530 through the outside of the bolt head 100 without removing the bolt, thereby improving the convenience of oil filling. By setting an elastic seal 550 at the opening 540, the lubricating oil can be prevented from leaking, and at the same time, external impurities can be prevented from entering the oil inlet chamber 530, thereby protecting the cleanliness and service life of the bolt.

[0064] Embodiment 3:

[0065] An embodiment of the present application provides a hexagonal flange face bolt. In addition to the above-mentioned technical features, the hexagonal flange face bolt of the embodiment of the present application also includes the following technical features.

[0066] like Figure 1 and Figure 2 As shown, the elastic seal 550 includes:

[0067] Sealing plug 551;

[0068] A spring 552 is disposed at the bottom of the sealing plug 551 and connected to the bottom of the oil inlet chamber 530;

[0069] The oil guide groove 553 is provided on the side wall of the opening 540;

[0070] When the sealing plug 551 drives the spring 552 to be compressed, the lubricating oil flows into the oil inlet cavity 530 from the oil guide groove 553 .

[0071] In the embodiment of the present application, under normal circumstances, the sealing plug 551 is tightly sealed with the pressure of the spring 552 to effectively prevent the leakage of lubricating oil and the entry of external impurities. When oil filling is required, the sealing plug 551 only needs to be pushed by external force (such as an oil filling tool) to drive the spring 552 to compress. At this time, the lubricating oil can smoothly enter the oil inlet chamber 530 through the oil guide groove 553 on the side wall of the opening 540. After the oil filling is completed, the external force is removed, and the sealing plug 551 automatically resets under the action of the spring 552, re-seals the opening 540, and restores the sealing state, realizing the perfect combination of automatic sealing and lubrication.

[0072] At the same time, the combination of the sealing plug 551 and the spring 552 ensures that the opening 540 is in a sealed state in most cases and is only opened briefly when oil is being filled, which greatly reduces the risk of lubricating oil leakage and ensures the stability and reliability of the lubrication system. Users do not need to worry about forgetting to close the opening 540 or not closing it tightly after oil filling, thereby improving the convenience and safety of the oil filling experience.

[0073] Embodiment 4:

[0074] An embodiment of the present application provides a hexagonal flange face bolt. In addition to the above-mentioned technical features, the hexagonal flange face bolt of the embodiment of the present application also includes the following technical features.

[0075] like Figure 1 and Figure 2 As shown, the sealing structure 400 includes an annular groove 410 disposed at the bottom of the flange 300 , and a sealing gasket 420 is disposed in the annular groove 410 .

[0076] In the embodiment of the present application, the sealing gasket 420 is located between the flange 300 and the connection surface, and can fill the small gap between the flange 300 and the connection surface to prevent leakage of gas, liquid or solid particles. The sealing gasket 420 not only plays a sealing role, but also provides a certain elastic buffer during the bolt tightening process, which helps to evenly distribute the stress generated by the bolt connection, reduce the loosening or damage of the connection caused by stress concentration, and improve the stability and reliability of the bolt connection.

[0077] Furthermore, a limiting groove 430 is provided at the bottom of the sealing gasket 420 , a speaker sealing ring 440 is provided in the limiting groove 430 , and the speaker sealing ring 440 is sleeved outside the screw rod 200 .

[0078] In some embodiments of the present application, by providing a speaker sealing ring 440, it can fit tightly with the screw 200 to form a tighter sealing interface. When the screw 200 is gradually tightened, the speaker sealing ring 440 can be continuously tightened toward the limiting groove 430 on the side of the sealing gasket 420 due to contraction. At this time, the tightened speaker sealing ring 440 can effectively block external rainwater, further improving the sealing effect.

[0079] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0080] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A hexagonal flange bolt, characterized in that: include: Bolt head (100); A screw rod (200), wherein the screw rod (200) and the bolt head (100) are integrally formed; A flange (300) is disposed on the screw (200); A sealing structure (400) is arranged on the flange (300) and is used to improve the sealing effect of the bolt as a whole; It also includes a lubrication structure (500), which is arranged on the bolt head (100) and is connected to the screw rod (200) and is used to lubricate the threads on the screw rod (200); The lubrication structure (500) comprises: An oil injection channel (510) is disposed inside the screw (200); An oil outlet (520) is provided on the screw rod (200), and an oil guide channel (521) is provided between the oil outlet (520) and the oil injection channel (510); An oil inlet chamber (530) is provided on the bolt head (100); Wherein, the top end of the oil injection channel (510) is connected to the oil inlet chamber (530); The sealing structure (400) comprises an annular groove (410) arranged at the bottom of the flange (300), and a sealing gasket (420) is arranged in the annular groove (410).

2. A hexagonal flange bolt according to claim 1, characterized in that: The bolt head (100) is provided with an opening (540), the opening (540) is communicated with the oil inlet chamber (530), and an elastic sealing member (550) is provided at the opening (540).

3. A hexagonal flange bolt according to claim 2, characterized in that: The elastic sealing member (550) comprises: Sealing plug (551); A spring (552) is disposed at the bottom of the sealing plug (551) and connected to the bottom of the oil inlet chamber (530); An oil guide groove (553) is disposed on a side wall of the opening (540); When the sealing plug (551) drives the spring (552) to be compressed, the lubricating oil enters the oil inlet chamber (530) from the oil guide groove (553).

4. A hexagonal flange bolt according to claim 3, characterized in that: The bottom of the sealing gasket (420) is provided with a limit slot (430), a speaker sealing ring (440) is provided in the limit slot (430), and the speaker sealing ring (440) is sleeved outside the screw rod (200).

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