CN215908839U

CN215908839U - Grease nipple with dust-proof cover

Info

Publication number: CN215908839U
Application number: CN202121835806.4U
Authority: CN
Inventors: 张存琪; 车家斌
Original assignee: Zhejiang Xingqi Machinery Technology Co ltd
Current assignee: Zhejiang Xingqi Machinery Technology Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2022-02-25
Anticipated expiration: 2031-08-05

Abstract

The utility model relates to the field of lubricating devices, in particular to a grease nipple with a dustproof sleeve. The utility model provides the following technical scheme: the utility model provides a grease fitting with dirt proof boot, including the grease fitting body, the one end of grease fitting body is the oil feed end of being connected with the grease gun, the other end is the link, be equipped with the inlet port in the oil feed end, the inside oil outlet that is equipped with of link, be equipped with the through-hole each other of UNICOM between inlet port and the oil outlet, install porose spring retainer ring for the hole in the oil outlet, spring and end cap, the one end and the hole of spring are inconsistent with spring retainer ring, the other end meets with the end cap, the end cap contacts and seals with the through-hole through the promotion of spring, oil feed end department is equipped with the dirt proof boot, the dirt proof boot is including being cylindric cover and establishing the casing of inlet end and setting a plurality of dustproof separation blade in the casing, the surface of inlet end is equipped with the spout along the axial, be equipped with the slider that can slide in the spout on the casing. The oil inlet end is protected by the dustproof sleeve, so that dust is prevented from entering the oil inlet end.

Description

Grease nipple with dust-proof cover

Technical Field

The utility model relates to the field of lubricating devices, in particular to a grease nipple with a dustproof sleeve.

Background

At present, a grease nozzle is often arranged on some mechanical equipment needing grease lubrication or parts needing high-pressure grease tensioning, and grease is added to the required equipment by using a grease gun matched with the grease nozzle. The grease nipple is of various types, wherein the straight-through grease nipple is structurally characterized in that one end of the straight-through grease nipple is an oil inlet end connected with a grease gun, the other end of the straight-through grease nipple is a connecting end with external threads, a through hole penetrates through the two ends of the straight-through grease nipple, a spring and a steel ball are arranged in the through hole, the size of the steel ball is larger than that of an inner hole of the oil inlet end connected with the grease gun, and the steel ball is in contact with the inner hole of the oil inlet end under the action of the spring force to form sealing.

Wherein the back is installed on corresponding equipment to the grease nipple, and its link is installed on equipment, and the oil feed end exposes in the air, and the oil feed end can gather the dust when the oil feed end is connected with the grease gun, and the dust can get into in the oil feed end, mixes with remaining fluid, forms impurity, blocks the oil feed end to influence the cooperation of oil feed end and grease gun.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides the grease nipple with the dustproof sleeve, the oil inlet end is protected by the dustproof sleeve, and dust is prevented from entering the oil inlet end to block the oil inlet end.

In order to achieve the purpose, the utility model provides the following technical scheme: a grease nipple with a dustproof cover comprises a grease nipple body, wherein one end of the grease nipple body is an oil inlet end connected with a grease gun, the other end of the grease nipple body is a connecting end, an oil inlet hole is formed in the oil inlet end, external threads are arranged on the outer surface of the connecting end, an oil outlet hole is formed in the connecting end, a through hole communicated with each other is formed between the oil inlet hole and the oil outlet hole, a spring retaining ring for holes, a spring and a plug are installed in the oil outlet hole, one end of the spring is abutted to the spring retaining ring for holes, the other end of the spring is connected with the plug, the plug is in contact with and sealed with the through hole through the pushing of the spring, the dustproof cover is arranged at the oil inlet end and comprises a plurality of dustproof blocking pieces which are cylindrically sleeved on the oil inlet end, a sliding groove is formed in the surface of the oil inlet end along the axial direction, and a sliding block capable of sliding in the sliding groove is arranged on the shell, the dustproof baffle is fan-shaped and is matched with the fan-shaped baffle to form a sealing surface, the size of the sealing surface is not smaller than the cross sectional area of the oil inlet end, and the dustproof baffle is made of elastic materials.

Adopt above-mentioned technical scheme, through setting up the dirt proof boot at the oil feed end, prevent that the dust from getting into in the inlet port of dirt proof boot, cause the jam to it, wherein the dirt proof boot blocks the dust through the sealed face that forms of a plurality of dirt proof separation blade, block the inlet port, when the oil feed end will be installed with the grease gun, the accessible promotes the casing, make the slider slide along the spout, make the dirt proof boot remove to the link end direction, along with the removal of dirt proof boot, the sealed face that the dirt proof separation blade formed leaves the inlet port department, and be broken open, paste in the surface of inlet end, expose the inlet port, link to each other with the grease gun.

Further, the end cap includes the body of rod with spring complex and sets up on the body of rod, the toper head of sealed through-hole, one side that the through-hole corresponds the toper head sets up to the bell mouth, the toper head corresponds the bell mouth and is equipped with the arc surface rather than the adaptation.

By adopting the technical scheme, the rod body can be matched with the spring, so that the spring is more stably installed, the impact force of oil liquid received by the conical head is smaller due to the arrangement of the conical head, the conical hole and the arc surface matched with the conical hole can ensure the sealing effect of the conical hole and the arc surface, and the situation that the conical head is clamped into the conical hole to be too deep to block the through hole can be avoided.

Further, a rubber sealing layer is arranged on the arc surface.

By adopting the technical scheme, the sealing effect of the arc surface is enhanced by the rubber sealing layer, so that the sealing of the plug to the through hole is stronger, and the oil leakage phenomenon is avoided.

Furthermore, the axial two ends of the shell are respectively provided with a rubber gasket.

By adopting the technical scheme, the arrangement can buffer part of impact and play a role of protecting the dustproof sleeve through the rubber gasket when the oil inlet end is connected with the grease gun.

Furthermore, each dustproof baffle plate is provided with a connecting piece corresponding to the other two adjacent dustproof baffle plates, and the two connecting pieces on the same dustproof baffle plate are arranged in a staggered mode.

By adopting the technical scheme, the connecting pieces which are overlapped in a staggered mode are arranged to enable the matching between the dustproof blocking pieces to be tighter, dust is prevented from entering from gaps, and the dustproof effect is better.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the dust boot.

Fig. 3 is a matching structure diagram of the dustproof baffle plate.

Fig. 4 is an enlarged view of the structure a in fig. 1.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples.

As shown in fig. 1-4, a grease fitting with a dust cap comprises a grease fitting body 1, one end of the grease fitting body 1 is an oil inlet 2 connected with a grease gun, the other end is a connecting end 3, an oil inlet 4 is arranged in the oil inlet 2, an external thread is arranged on the outer surface of the connecting end 3, an oil outlet 5 is arranged in the connecting end, a through hole 6 communicated with each other is arranged between the oil inlet 4 and the oil outlet 5, a spring retainer 7 for holes, a spring 8 and a plug are arranged in the oil outlet 5, one end of the spring 8 is abutted against the spring 8 retainer 7 for holes, the other end is connected with the plug, the plug is contacted with the through hole 6 and sealed by the pushing of the spring 8, a dust cap 10 is arranged at the oil inlet 2, the dust cap 10 comprises a casing 11 sleeved on the oil inlet 2 in a cylindrical shape and a plurality of dust caps 12 arranged in the casing 11, the surface of the oil inlet end 2 is provided with a sliding groove 13 along the axial direction, the shell 11 is provided with a sliding block 14 capable of sliding in the sliding groove 13, the dustproof baffle 12 is in a fan shape and is matched with each other to form a sealing surface 15, and the size of the sealing surface 15 is not smaller than the cross sectional area of the oil inlet end 2. Through setting up dirt proof boot 10 at oil feed end 2, prevent that the dust from getting into in the inlet port 4 of dirt proof boot 10, cause the jam to it, wherein dirt proof boot 10 blocks the dust through sealed face 15 of a plurality of dustproof separation blade 12 formation, keep oil feed hole 4, when oil feed end 2 will be installed with the grease gun, the accessible promotes casing 11, make slider 14 slide along spout 13, make dirt proof boot 10 remove to 3 directions of link, along with the removal of dirt proof boot 10, sealed face 15 that dustproof separation blade 12 formed leaves inlet port 4 department, and broken open, paste in the surface of oil feed end 2, expose inlet port 4, it links to each other with the grease gun.

The dust-proof blocking sheet 12 is made of elastic material, such as rubber.

The surface of the oil inlet end 2 can be provided with external threads which are matched and connected with a grease gun through threads, and the sliding groove 13 is arranged on the surface of the threads.

The sliding grooves 13 are arranged in two or more than two, and are respectively and symmetrically arranged.

The plug comprises a rod body 16 matched with the spring 8 and a conical head 17 arranged on the rod body 16 and used for sealing the through hole 6, one side, corresponding to the conical head 17, of the through hole 6 is provided with a conical hole 18, and the conical head 17 is provided with an arc surface 19 matched with the conical hole 18. The rod body 16 can be matched with the spring 8, so that the spring 8 is more stably installed, the impact force of oil liquid on the conical head 17 is smaller due to the arrangement of the conical head 17, the conical hole 18 and the arc surface 19 matched with the conical hole 18 can ensure the sealing effect of the conical hole 18 and the arc surface 19, and the situation that the conical head 17 is clamped into the conical hole 18 too deeply to block the through hole 6 can be avoided.

The arc surface 19 is provided with a rubber sealing layer 20. The sealing effect of the arc surface 19 is enhanced through the rubber sealing layer 20, so that the plug has stronger sealing effect on the through hole 6, and the oil leakage phenomenon is avoided.

And rubber gaskets 21 are respectively arranged at two axial ends of the shell 11. The arrangement can buffer part of impact through the rubber gasket 21 when the oil inlet end 2 is connected with the grease gun, and plays a role in protecting the dustproof sleeve 10.

Each dustproof baffle plate 12 is provided with connecting pieces 22 corresponding to the other two adjacent dustproof baffle plates 12, and the two connecting pieces 22 on the same dustproof baffle plate 12 are arranged in a staggered manner. The arrangement of the connecting pieces 22 overlapped in a staggered manner makes the fit between the dust-proof blocking pieces 12 tighter, prevents dust from entering from gaps, and has better dust-proof effect.

Claims

1. The utility model provides a grease nipple with dirt proof boot, includes the grease nipple body, the one end of grease nipple body is the inlet end of being connected with the grease gun, and the other end is the link, be equipped with the inlet port in the inlet end, the surface of link is equipped with the external screw thread, its inside oil outlet that is equipped with, be equipped with the through-hole each other of UNICOM between inlet port and the oil outlet, install porose circlip, spring and end cap for the hole in the oil outlet, the one end and the hole circlip for the spring are inconsistent, and the other end meets with the end cap, the end cap contacts and seals its characterized in that through the promotion of spring and through-hole: the oil feed end department is equipped with the dirt proof boot, the dirt proof boot is including being cylindric cover and establishing the casing at the oil feed end and setting up a plurality of dustproof separation blades in the casing, the surface of oil feed end is equipped with the spout along the axial, be equipped with the slider that can slide in the spout on the casing, dustproof separation blade sets up to fan-shaped, mutually support and forms sealed face, sealed face's size is not less than the cross-sectional area of oil feed end, and dustproof separation blade adopts and makes with elastic material.

2. The grease fitting with a dust boot as claimed in claim 1, wherein: the plug comprises a rod body matched with the spring and a conical head arranged on the rod body and used for sealing the through hole, one side of the through hole, corresponding to the conical head, is provided with a conical hole, and the conical head is provided with an arc surface matched with the conical hole.

3. The grease fitting with a dust boot according to claim 2, characterized in that: and a rubber sealing layer is arranged on the arc surface.

4. The grease fitting with a dust boot according to claim 1, 2 or 3, characterized in that: and rubber gaskets are respectively arranged at the two axial ends of the shell.

5. The grease fitting with a dust boot according to claim 1, 2 or 3, characterized in that: each dustproof blocking piece is provided with a connecting piece corresponding to the other two adjacent dustproof blocking pieces, and the two connecting pieces on the same dustproof blocking piece are arranged in a staggered mode.

6. The grease fitting with a dust boot according to claim 4, characterized in that: each dustproof blocking piece is provided with a connecting piece corresponding to the other two adjacent dustproof blocking pieces, and the two connecting pieces on the same dustproof blocking piece are arranged in a staggered mode.