Bolt convenient to oil

Abstract

The utility model relates to the technical field of bolts, in particular to a bolt convenient to oil, which comprises a main bolt bar, a nut and a bolt cap are arranged on the main bolt bar, internal threads are arranged on the nut, the nut is in threaded connection with the main bolt bar through the internal threads, an oil supplementing sinking groove is arranged on the bolt cap, and the oil supplementing sinking groove is communicated with the oil supplementing sinking groove. An oil supplementing sinking groove is formed in the main bolt rod, a flow guide face and an oil seal cover are arranged in the oil supplementing sinking groove, an oil storage and conveying groove and an oil feeding hole are formed in the main bolt rod, a positioning caulking groove and a finger-digging groove are formed in the bolt cap, a magnetic attraction piece is arranged in the positioning caulking groove, an anti-loosening backing ring is arranged in the positioning caulking groove in a sleeved mode, and an attracted piece is arranged on the anti-loosening backing ring. A sealing cover buckling groove and a sealing sleeve are arranged on the oil sealing cover, and a backing ring buckling groove is formed in the anti-loosening backing ring. The convenience of coating the anti-rust oil on the thread tooth connecting part between the main bolt rod and the nut on the bolt main body is improved, and the situation that the anti-loose backing ring slips off from the main bolt rod due to slight carelessness is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to a bolt which is convenient for oiling. Background Art

[0002] Bolts are a classic mechanical connector and are widely used in various machinery, construction, electronic equipment and other fields. Bolts generally consist of a main bolt rod, a bolt cap and a matching nut.

[0003] When the bolt is used, the main bolt rod generally passes through two plates with through holes, and then the internal thread of the nut and the external thread of the main bolt rod are thread-locked to achieve thread-locking of the two plates together.

[0004] When used in high or low temperature environments, the main bolt rod and nut made of metal will expand or contract. If a layer of anti-rust oil is applied to the surface of the main bolt rod and nut, the bite and jamming between the main bolt rod and nut caused by thermal expansion and contraction can be alleviated.

[0005] At present, the existing bolt body can generally only be coated with anti-rust oil on the surface of the main bolt rod and the nut after installation, but it is not convenient to coat the threaded connection between the main bolt rod and the nut with anti-rust oil, which greatly reduces the convenience of coating the threaded connection between the main bolt rod and the nut on the bolt body.

[0006] In addition, the existing bolt body is matched with an anti-loosening washer, which is generally directly sleeved on the main bolt rod. If you are not careful, the anti-loosening washer will slip directly off the main bolt rod, which will affect the normal installation operation between the main bolt rod and the nut in the later stage. Utility Model Content

[0007] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a bolt which is easy to oil.

[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A bolt convenient for oiling is designed, comprising a main bolt rod, a nut and a bolt cap provided on the main bolt rod, the nut provided with an internal thread, the nut being threadedly connected to the main bolt rod via the internal thread, an oil supply groove provided on the bolt cap, a guide surface and an oil seal cover provided in the oil supply groove, an oil storage and delivery groove and an oiling hole provided on the main bolt rod, and a positioning groove and a finger-digging groove provided on the bolt cap;

[0010] A magnetic sheet is provided in the positioning groove, an anti-loosening washer is sleeved in the positioning groove, and an attracted sheet is provided on the anti-loosening washer;

[0011] The oil seal cover is provided with a sealing cover buckle groove and a sealing sleeve, and the anti-loosening gasket is provided with a gasket buckle groove.

[0012] Furthermore, the oil holes are arranged in four groups vertically, with each group consisting of four holes arranged circumferentially and passing through the main bolt rod horizontally.

[0013] Furthermore, the oil storage and delivery tank is vertically opened in the main bolt rod and the lower end does not pass through the main bolt rod. The upper end of the oil storage and delivery tank passes through the main bolt rod and is connected to the upper oil hole and the oil replenishing sink respectively.

[0014] Furthermore, the oil-supplying trough is a countersunk trough structure as a whole, and the guide surface is an arc-shaped cross-section as a whole and is arranged along the inner trough corner of the oil-supplying trough.

[0015] Furthermore, the sealing sleeve is evenly fixedly sleeved along the outer wall surface of the oil seal cover, and the oil seal cover is squeezed and embedded in the oil replenishing sink groove by the sealing sleeve.

[0016] Furthermore, the magnetic sheet and the attracted sheet are a group, which are four groups arranged circumferentially. The anti-loosening washer is embedded in the positioning groove, and the anti-loosening washer is magnetically attracted to the magnetic sheet through the attracted sheet.

[0017] Furthermore, the finger-digging grooves are two symmetrical ones and are connected to the positioning grooves, and the gasket ring buckle grooves are two symmetrical ones and are horizontally aligned with the finger-digging grooves.

[0018] The utility model provides a bolt that is easy to oil, which has the following beneficial effects:

[0019] 1. The utility model provides an oil storage and delivery groove and an oiling hole structure on the main bolt rod, and an oil supply sink structure with an oil seal cover on the bolt cap. When the nut mounting thread is rotated onto the main bolt rod, the anti-rust oil in the oil storage and delivery groove passes through each oiling hole and is evenly coated on the thread connection part between the main bolt rod and the nut, thereby improving the convenience of coating the anti-rust oil on the thread connection part between the main bolt rod and the nut on the bolt body.

[0020] 2. The utility model provides a positioning groove with a magnetic block on the bolt cap and a matching attracted piece structure on the anti-loosening washer, so that the anti-loosening washer can be stably magnetically attracted in the positioning groove, thereby avoiding the anti-loosening washer from slipping off the main bolt rod if not paid attention, thereby ensuring the normal installation operation effect between the main bolt rod and the nut in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a first-perspective stereoscopic view of the overall structure of the present invention;

[0022] Figure 2 This is a second perspective view of the overall structure of the utility model;

[0023] Figure 3 For the utility model Figure 1 A perspective diagram without an oil seal cover;

[0024] Figure 4 For the utility model Figure 1 A three-dimensional schematic diagram of a main bolt rod without an anti-loosening washer structure;

[0025] Figure 5 For the utility model Figure 1 A three-dimensional diagram of the oil seal;

[0026] Figure 6 For the utility model Figure 2 Schematic diagram of the middle anti-loosening washer.

[0027] In the figure: 1 main bolt rod; 11 oiling hole; 12 oil storage and delivery groove; 2 bolt cap; 21 positioning groove; 22 finger groove; 23 magnetic plate; 3 nut; 31 internal thread; 4 anti-loosening washer; 41 washer buckle groove; 42 attracted plate; 5 oil replenishing sink groove; 51 guide surface; 6 oil seal cover; 61 seal cover buckle groove; 62 sealing sleeve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Reference Figure 1-6 A bolt that is easy to oil includes a main bolt rod 1, a nut 3 and a bolt cap 2 provided on the main bolt rod 1, an internal thread 31 provided on the nut 3, and a threaded connection between the nut 3 and the main bolt rod 1 via the internal thread 31, an oil replenishment groove 5 provided on the bolt cap 2, a guide surface 51 and an oil seal cover 6 provided in the oil replenishment groove 5, an oil storage and delivery groove 12 and an oiling hole 11 provided on the main bolt rod 1, and a positioning groove 21 and a finger-digging groove 22 provided on the bolt cap 2;

[0030] A magnetic attraction piece 23 is provided in the positioning groove 21, an anti-loosening washer 4 is sleeved in the positioning groove 21, and an attraction piece 42 is provided on the anti-loosening washer 4;

[0031] The oil seal cover 6 is provided with a seal cover buckle groove 61 and a sealing sleeve 62 , and the anti-loosening gasket 4 is provided with a gasket buckle groove 41 . The anti-loosening gasket 4 is made of polyurethane rubber and has high elasticity.

[0032] The oil seal cover 6 is made of high manganese steel, which is high in strength, oil-resistant and durable. After two fingers are inserted into the seal cover buckle groove 61, the oil seal cover 6 can be easily pulled out from the oil replenishing sink groove 5.

[0033] The oiling holes 11 are arranged in four groups vertically, with each group consisting of four holes arranged circumferentially and passing through the main bolt rod 1 horizontally, which greatly increases the effective area for oiling the threaded connection between the main bolt rod 1 and the nut 3.

[0034] The oil storage and delivery tank 12 is vertically opened in the main bolt rod 1 and the lower end does not pass through the main bolt rod 1 to prevent the anti-rust oil from leaking from the lower end of the main bolt rod 1.

[0035] The upper end of the oil storage and delivery tank 12 passes through the main bolt rod 1 and is connected to the upper oil hole 11 and the oil replenishing sink 5 respectively. When the main bolt rod 1 and the nut 3 are threadedly installed, the anti-rust oil is evenly coated on the threaded connection part between the main bolt rod 1 and the nut 3, which is very convenient.

[0036] The oil replenishing trough 5 is a countersunk trough structure as a whole, and the guide surface 51 is an arc-shaped cross-section as a whole and is arranged along the inner trough corner of the oil replenishing trough 5. When replenishing or adding rust-proof oil through the oil replenishing trough 5, the rust-proof oil will quickly and concentratedly flow into the oil storage and oil delivery tank 12 along the guide surface 51, thereby improving the refueling rate of the rust-proof oil.

[0037] The sealing sleeve 62 is evenly fixed and sleeved along the outer wall of the oil seal cover 6. The oil seal cover 6 is extruded and embedded in the oil replenishing sink groove 5 through the sealing sleeve 62. The sealing sleeve 62 is made of elastic NBR nitrile rubber material, which is oil-resistant, weather-resistant and durable, thereby sealing the oil replenishing sink groove 5 to avoid oil leakage.

[0038] The magnetic sheet 23 and the attracted sheet 42 form a group, which are four groups arranged in a circle. The anti-loosening washer 4 is embedded in the positioning groove 21. The anti-loosening washer 4 is magnetically attracted to the magnetic sheet 23 through the attracted sheet 42. The magnetic sheet 23 is made of artificial magnet material, and the attracted sheet 42 is a commonly used metal sheet, which can be stably magnetically attracted to the magnetic sheet 23 to achieve embedded positioning of the anti-loosening washer 4.

[0039] The finger-digging grooves 22 are two symmetrical grooves on the left and right and are connected to the positioning groove 21. The gasket ring buckle grooves 41 are two symmetrical grooves on the left and right and are horizontally aligned with the finger-digging grooves 22. If the anti-loosening gasket ring 4 ages after long-term use and needs to be replaced, the finger can be inserted into the finger-digging groove 22 and inserted into the gasket ring buckle groove 41 to easily pick out the aged anti-loosening gasket ring 4 and then replace it with a new anti-loosening gasket ring 4.

[0040] Working method: A certain amount of anti-rust oil is injected into the oil storage and delivery tank 12 through the oil replenishing trough 5, and then the oil seal cover 6 is squeezed and covered in the oil replenishing trough 5. Then, during installation, the main bolt rod 1 is first vertically passed through two plates with through holes (not drawn), and then the nut 3 is threadedly installed on the main bolt rod 1 through the internal thread 31 to achieve thread locking. At this time, the anti-rust oil preset in the oil storage and delivery tank 12 will be evenly coated on the threaded connection part between the main bolt rod 1 and the nut 3 through each oiling hole 11, thereby improving the convenience of coating the anti-rust oil on the threaded connection part between the main bolt rod 1 and the nut 3 on the bolt body.

[0041] In addition, before installation, the anti-loosening washer 4 is put on the main bolt rod 1 and embedded in the positioning groove 21. At this time, the attracted piece 42 will be stably magnetically attracted to the matching magnetic piece 23, preventing the anti-loosening washer 4 from slipping off when the main bolt rod 1 and the nut 3 are threadedly installed and locked, thereby ensuring the normal installation operation effect between the main bolt rod 1 and the nut 3 in the later stage.

[0042] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A bolt that is easy to oil, comprising a main bolt rod (1), characterized in that: The main bolt rod (1) is provided with a nut (3) and a bolt cap (2), the nut (3) is provided with an internal thread (31), the nut (3) is threadedly connected to the main bolt rod (1) via the internal thread (31), the bolt cap (2) is provided with an oil replenishing sink groove (5), the oil replenishing sink groove (5) is provided with a guide surface (51) and an oil seal cover (6), the main bolt rod (1) is provided with an oil storage and delivery groove (12) and an oiling hole (11), and the bolt cap (2) is provided with a positioning groove (21) and a finger-digging groove (22); A magnetic attraction piece (23) is provided in the positioning groove (21), an anti-loosening washer (4) is sleeved in the positioning groove (21), and an attraction piece (42) is provided on the anti-loosening washer (4); The oil seal cover (6) is provided with a seal cover buckle groove (61) and a sealing sleeve (62), and the anti-loosening gasket (4) is provided with a gasket buckle groove (41).

2. The bolt that is easy to oil according to claim 1, characterized in that: The oiling holes (11) are arranged in four groups vertically, with each group consisting of four holes arranged circumferentially and passing through the main bolt rod (1) transversely.

3. The bolt that is easy to oil according to claim 1, characterized in that: The oil storage and delivery groove (12) is vertically opened in the main bolt rod (1) and the lower end does not pass through the main bolt rod (1). The upper end of the oil storage and delivery groove (12) passes through the main bolt rod (1) and is respectively connected to the upper oil hole (11) and the oil replenishment sink (5).

4. The bolt that is easy to oil according to claim 1, characterized in that: The oil replenishing trough (5) is a countersunk trough structure as a whole, and the guide surface (51) is an arc-shaped cross-section as a whole and is arranged along the inner trough corner of the oil replenishing trough (5).

5. The bolt that is easy to oil according to claim 1, characterized in that: The sealing sleeve (62) is evenly fixedly sleeved along the outer wall surface of the oil seal cover (6), and the oil seal cover (6) is extruded and embedded in the oil replenishing sink groove (5) through the sealing sleeve (62).

6. The bolt that is easy to oil according to claim 1, characterized in that: The magnetic attraction piece (23) and the attracted piece (42) form a group, which is four groups arranged in a circle. The anti-loosening washer (4) is embedded in the positioning groove (21). The anti-loosening washer (4) is magnetically attracted to the magnetic attraction piece (23) through the attracted piece (42).

7. The bolt that is easy to oil according to claim 1, characterized in that: The finger-digging grooves (22) are two symmetrical left-right and communicate with the positioning embedding groove (21); the pad ring buckle grooves (41) are two symmetrical left-right and are transversely aligned with the finger-digging grooves (22).

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