Bolt capable of automatically injecting oil

Abstract

The utility model discloses a bolt capable of automatically injecting oil, and relates to the technical field of bolts. Comprising a screw main body, the screw main body is provided with an injection mechanism for bolt lubricating oil, and the injection mechanism comprises that when the screw main body is connected and installed, a first rubber plate and a second rubber plate are extruded by a locked object to upwards drive and are matched with a nut for use, so that the sealing performance during connection is improved; then, while the rubber plate is driven upwards, a supporting rod and a sliding plate are pushed to drive upwards in a cavity groove, so that an air bag body is extruded, gas is fed into an oil storage channel through a hose, and the oil storage channel is pressed to enable lubricating oil carried by the oil storage channel to flow into the outer wall of a screw body through an oil injection hole; automatic injection of lubricating oil is achieved, it can be guaranteed that when the bolt is used, it can be guaranteed that a connecting part is fully lubricated in the fastening process, friction and abrasion are reduced, and the service life of a connecting part is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bolts, in particular to an automatic oil-filling bolt. Background Art

[0002] A bolt is a cylindrical threaded mechanical part consisting of a head and a screw (a cylinder with external threads). It needs to be used in conjunction with a nut to fasten two parts with through holes.

[0003] The reference patent (publication number: CN208565207U; publication date: 2019-03-01) discloses an automatic oil-filling bolt, including a bolt head, a screw rod, an oil storage tank, an oil filling insert, a drainage groove, and a washer. The top of the screw rod is provided with a bolt head, and a washer is provided between the bolt head and the screw rod. The bolt head, the screw and the washer are an integrated structure. The bolt head is provided with an oil storage tank, and the side of the oil storage tank is provided with an oil filling hole. The side of the bolt head is provided with an oil filling insert. The end of the oil injection plug extends into the oil injection hole and is fixed to the oil injection hole. A drainage groove is arranged in the screw rod. The bottom of the oil storage groove is connected to the drainage groove. An oil storage groove is arranged in the bolt head. The bottom of the oil storage groove is connected to the drainage groove. An oil injection plug is arranged on the side of the bolt head. When in use, the oil injection plug is unscrewed, and the lubricating oil is injected into the oil storage groove, and flows down along the drainage groove to lubricate the screw rod. After the oil injection plug is tightened, the injected oil will not flow back from the bolt head and leak, and there will be no blockage. The oil injection is convenient and the lubrication effect is good.

[0004] Traditional bolt lubrication methods usually rely on applying lubricating oil before installing the bolts, or regularly disassembling the bolts to replenish the lubricating oil. This method is cumbersome and inefficient, and frequent disassembly of the bolts may also cause additional damage to the connection parts, further shortening the service life of the bolts. For this reason, the utility model provides an automatic oil-filled bolt. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an automatically oiled bolt, which solves the problem that bolt lubrication usually relies on applying lubricating oil before installing the bolt, or regularly disassembling the bolt to replenish the lubricating oil, which is cumbersome and inefficient to operate, and frequent disassembly of the bolt may also cause additional damage to the connection parts, further shortening the service life of the bolt.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: an automatic oil-filling bolt, including a screw body, on which an injection mechanism for bolt lubricating oil is provided, the injection mechanism comprising:

[0007] The oil storage assembly comprises an oil storage channel opened inside the screw body, and the inner wall of the oil storage channel is evenly provided with oil injection holes;

[0008] The oil injection assembly includes a nut fixedly connected to the upper end of a screw body, a cavity groove is opened inside the nut, a support plate is fixedly connected to the inner wall of the cavity groove, a slide plate is arranged on the upper end surface of the support plate, an airbag body is arranged on the surface of the slide plate, a hose is arranged inside the airbag body, and the hose is fluidly connected to the oil storage channel.

[0009] Preferably, the slide plate is slidably connected to the inner wall of the cavity groove, and two groups of support rods are provided on the lower end surface of the slide plate through the support plate, and the support rods are slidably connected to the support plate.

[0010] Preferably, a first rubber plate is fixedly connected to the lower end of the support rod, and a second rubber plate is provided on the lower end surface of the first rubber plate.

[0011] Preferably, the outer wall of the screw body is provided with threads, and the oil injection holes are distributed between the threads.

[0012] Preferably, an oil injection channel is provided inside the nut, an oil injection pipe is connected to the lower end of the oil injection channel, a rubber baffle is provided at the connection between the oil injection channel and the oil injection pipe, and a cross groove is provided inside the rubber baffle.

[0013] Preferably, a rubber plug is provided at the upper end of the oil injection channel, and a drainage tube is provided at the end of the oil injection pipe.

[0014] Beneficial Effects

[0015] The utility model provides an automatic oil-filling bolt. Compared with the prior art, it has the following beneficial effects:

[0016] Firstly, when the screw body of the utility model is connected and installed, the first rubber plate and the second rubber plate are squeezed by the locking object and driven upward, and are used in conjunction with the nut to improve the sealing during connection. Then, while the rubber plates are driven upward, the push support rod and the slide plate are driven upward inside the cavity groove, thereby squeezing the airbag body, and the gas is sent to the oil storage channel through the hose. The oil storage channel is pressurized so that the lubricating oil it carries flows into the outer wall of the screw body through the oil filling hole, thereby realizing automatic injection of lubricating oil, which is used to ensure that the connection parts can be fully lubricated during the tightening process while the bolts are used, thereby reducing friction and wear and increasing the service life of the connection parts.

[0017] Secondly, after the bolt has been used for a long time, the utility model can open the rubber plug to inject lubricating oil by itself, and the rubber baffle can slightly open after receiving the pressure, and can seal itself after the oil injection is completed, thereby improving the sealing performance of the oil injection pipe, and then the oil is sent to the oil storage channel through the oil injection channel, the oil injection pipe and the drainage pipe, and the oil injection work is carried out manually through the oil injection hole, so that the lubricating oil can be replenished in time, the connection part can be kept in a good lubrication state, and the damage caused by friction and wear can be reduced, thereby extending the service life of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the cavity groove of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the screw body of the utility model;

[0021] Figure 4 This is a schematic diagram of the oil filling pipe connection structure of the utility model.

[0022] In the figure: 1. screw body; 101. thread; 2. nut; 201. oil storage channel; 202. oil filling hole; 3. cavity groove; 301. support plate; 302. slide plate; 303. airbag body; 304. hose; 4. support rod; 401. first rubber sheet; 5. oil filling channel; 501. oil filling pipe; 502. rubber baffle; 503. drainage tube; 6. rubber plug; 7. second rubber sheet. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution: an automatic oil-filling bolt, comprising a screw body 1, on which a screw body 1 is provided an injection mechanism for bolt lubricating oil, the injection mechanism comprising:

[0025] The oil storage assembly includes an oil storage channel 201 opened inside the screw body 1, and the inner wall of the oil storage channel 201 is evenly provided with oil injection holes 202. The oil storage channel 201 is used to store lubricating oil;

[0026] The oil injection assembly includes a nut 2 fixedly connected to the upper end of a screw body 1, a cavity groove 3 is opened inside the nut 2, a support plate 301 is fixedly connected to the inner wall of the cavity groove 3, a slide plate 302 is arranged on the upper end surface of the support plate 301, an airbag body 303 is arranged on the surface of the slide plate 302, a hose 304 is arranged inside the airbag body 303, and the hose 304 is fluidly connected with the oil storage channel 201, and the screw body 1 is used through the nut 2 and a wrench.

[0027] In a preferred embodiment, the slide plate 302 is slidably connected to the inner wall of the cavity groove 3 , and two groups of support rods 4 are provided on the lower end surface of the slide plate 302 through the support plate 301 , and the support rods 4 are slidably connected to the support plate 301 .

[0028] In a preferred embodiment, the lower end of the support rod 4 is fixedly connected to a first rubber plate 401, and the lower end surface of the first rubber plate 401 is provided with a second rubber plate 7. When the screw body 1 is connected and installed, the first rubber plate 401 and the second rubber plate 7 are squeezed by the locking object and driven upward, and are used in conjunction with the nut 2 to improve the sealing during connection. Then, while the rubber plate is driven upward, the support rod 4 and the slide plate 302 are pushed upward inside the cavity groove 3, thereby squeezing the airbag body 303, and the gas is sent to the oil storage channel 201 through the hose 304. The oil storage channel 201 is subjected to pressure so that the lubricating oil it carries flows into the outer wall of the screw body 1 through the oil filling hole 202, thereby realizing automatic injection of lubricating oil, which is used to ensure that the connection part can be fully lubricated during the tightening process while using the bolt, reduce friction and wear, and increase the service life of the connecting parts.

[0029] In a preferred embodiment, the outer wall of the screw body 1 is provided with threads 101, and the oil injection holes 202 are distributed between the threads 101. The oil injection holes 202 are evenly distributed between the threads 101 along the vertical direction of the screw body 1, ensuring that the outflowing lubricating oil can be evenly distributed on the outer surface of the screw body 1.

[0030] In a preferred embodiment, an oil filling channel 5 is provided inside the nut 2, and an oil filling pipe 501 is connected to the lower end of the oil filling channel 5. A rubber stopper 502 is provided at the connection between the oil filling channel 5 and the oil filling pipe 501, and a cross groove is provided inside the rubber stopper 502. A rubber plug 6 is provided at the upper end of the oil filling channel 5, and a drainage pipe 503 is provided at the end of the oil filling pipe 501. After the bolt is used for a long time, the rubber plug 6 can be opened to inject lubricating oil by itself, and the rubber stopper 502 can be slightly opened after receiving pressure. After the oil filling is completed, it can be sealed by itself to improve the sealing performance of the oil filling pipe 501, and then it is sent to the oil storage channel 201 through the oil filling channel 5, the oil filling pipe 501 and the drainage pipe 503. Manual oiling is performed through the oil filling hole 202, so that the lubricating oil can be replenished in time, the connection part can be kept in a good lubrication state, and the damage caused by friction and wear can be reduced, thereby extending the service life of the bolt.

[0031] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0032] During operation, the oil storage channel 201 is used to store the lubricating oil itself. Then, when the screw body 1 is connected and installed, the first rubber plate 401 and the second rubber plate 7 are squeezed by the locking object and driven upward, and used in conjunction with the nut 2 to improve the sealing during connection. Then, while the rubber plate is driven upward, the push support rod 4 and the slide plate 302 are driven upward inside the cavity groove 3, thereby squeezing the airbag body 303, and the gas is sent to the oil storage channel 201 through the hose 304. The oil storage channel 201 is pressurized so that the lubricating oil it carries flows into the outer wall of the screw body 1 through the oil injection hole 202, thereby realizing the automatic injection of the lubricating oil.

[0033] After the bolt is used for a long time, the rubber plug 6 can be opened to inject lubricating oil by itself. The rubber baffle 502 can be slightly opened after receiving the pressure. It can be sealed by itself after the oil injection is completed, thereby improving the sealing performance of the oil injection pipe 501. Then, the oil is sent to the oil storage channel 201 through the oil injection channel 5, the oil injection pipe 501 and the drainage pipe 503. Manual oil injection is performed through the oil injection hole 202, so that the lubricating oil can be replenished in time, the connection parts can be kept in a good lubrication state, and the damage caused by friction and wear can be reduced.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic oil-filling bolt, comprising a screw body (1), characterized in that: The screw body (1) is provided with an injection mechanism for bolt lubricating oil, and the injection mechanism comprises: An oil storage assembly comprises an oil storage channel (201) opened inside a screw body (1), wherein the inner wall of the oil storage channel (201) is evenly provided with oil injection holes (202); The oil injection assembly comprises a nut (2) fixedly connected to the upper end of a screw body (1); a cavity groove (3) is provided inside the nut (2); a support plate (301) is fixedly connected to the inner wall of the cavity groove (3); a slide plate (302) is provided on the upper end surface of the support plate (301); an airbag body (303) is provided on the surface of the slide plate (302); a hose (304) is provided inside the airbag body (303); and the hose (304) is fluidly connected to an oil storage channel (201).

2. The automatic oil filling bolt according to claim 1, characterized in that: The slide plate (302) is slidably connected to the inner wall of the cavity groove (3); the lower end surface of the slide plate (302) is provided with two groups of support rods (4) passing through the support plate (301); and the support rods (4) are slidably connected to the support plate (301).

3. The automatic oil filling bolt according to claim 2, characterized in that: The lower end of the support rod (4) is fixedly connected to a first rubber plate (401), and the lower end surface of the first rubber plate (401) is provided with a second rubber plate (7).

4. The automatic oil filling bolt according to claim 1, characterized in that: The outer wall of the screw body (1) is provided with threads (101), and the oil injection holes (202) are distributed between the threads (101).

5. The automatic oil filling bolt according to claim 1, characterized in that: An oil injection channel (5) is provided inside the nut (2), the lower end of the oil injection channel (5) is connected to an oil injection pipe (501), a rubber stopper (502) is provided at the connection between the oil injection channel (5) and the oil injection pipe (501), and a cross groove is provided inside the rubber stopper (502).

6. The automatic oil filling bolt according to claim 5, characterized in that: The upper end of the oil injection channel (5) is provided with a rubber plug (6), and the end of the oil injection pipe (501) is provided with a drainage pipe (503).

Images