阅读说明：本技术 一种密封性好的高压油管接头 (High-pressure oil pipe joint with good sealing performance ) 是由 戚顺平 凌圣军 梁松千 陈旭东 朱志峰 于 2021-07-25 设计创作，主要内容包括：本发明公开了一种密封性好的高压油管接头,涉及高压油管接头领域,包括接头本体,接头本体的内部中间位置处安装有固定环,固定环的两侧均设置有固定套。本发明通过设置有注油组件,当需要对螺杆表面涂油时,使用者通过拉动密封塞,此时密封塞只会在进油孔内移动而不会移出,防止润滑油从进油孔流出,且继续拉动密封塞时,拉绳会移动,而拉绳移动后可带动防堵塞移动,当防堵塞从排油孔内部移出后,储油槽内部的润滑油便会通过排油孔流入至通油槽的内部,然后在通过通油槽流入至螺杆的表面,而润滑油顺着螺杆表面往下流动,以对螺杆的表面进行整体润滑,从而可防止螺杆表面生锈,且方便后续使用者转动螺杆以使卡板从卡槽内部移出。(The invention discloses a high-pressure oil pipe joint with good sealing performance, and relates to the field of high-pressure oil pipe joints. According to the invention, by arranging the oil injection assembly, when the surface of the screw needs to be oiled, a user pulls the sealing plug, the sealing plug only moves in the oil inlet hole and cannot move out, so that lubricating oil is prevented from flowing out of the oil inlet hole, the pull rope moves when the sealing plug is continuously pulled, the pull rope can drive the anti-blocking plug to move after moving, after the anti-blocking plug moves out of the oil outlet hole, the lubricating oil in the oil storage tank flows into the oil through groove through the oil outlet hole, then flows to the surface of the screw through the oil through groove, and the lubricating oil flows downwards along the surface of the screw so as to integrally lubricate the surface of the screw, so that the surface of the screw can be prevented from rusting, and a subsequent user can conveniently rotate the screw to enable the clamping plate to move out of the clamping groove.)

1. The utility model provides a high pressure fuel pipe that leakproofness is good connects, includes and connects body (1), its characterized in that: the utility model discloses a joint, including joint body (1), fixed ring (10) is installed to the inside intermediate position department of joint body (1), the both sides of fixed ring (10) all are provided with fixed cover (2), two fender ring (5) are all installed to the one end of fixed cover (2), the inside of fixed cover (2) is provided with oil pipe (15), the inner wall of fixed cover (2) is provided with buffering subassembly (12), go-between (16) are all installed to the top and the bottom of joint body (1), movable sleeve (3) have all been cup jointed to the surface both sides of joint body (1), the one end of movable sleeve (3) is fixed with loose ring (4), draw-in groove (9) have all been seted up to the top both sides and the bottom both sides of movable sleeve (3), the both sides of go-between (16) all are fixed with spacing ring (17), the internally mounted of spacing ring (17) has screw rod (6), the bottom of screw rod (6) is installed through bearing (7) and is extended to inside cardboard (8) of draw-in groove (9), inside one side of spacing ring (17) is provided with oiling subassembly (13).

2. The high-pressure oil pipe joint with good sealing performance of claim 1, wherein: the oiling assembly (13) comprises an oil inlet hole (1308) formed in one side of the inner portion of the limiting ring (17), an oil storage tank (1301) and an oil through tank (1302), an oil through hole (14) is formed between the oil storage tank (1301) and the oil inlet hole (1308), an oil discharge hole (1303) is formed between the oil storage tank (1301) and the oil through tank (1302), a spring (1307) and an expansion rod (1306) are installed on one side of the inner portion of the oil storage tank (1301) respectively, one end of the spring (1307) and one end of the expansion rod (1306) are connected with an anti-blocking body (1304) extending into the oil discharge hole (1303), one side of the anti-blocking body (1304) is connected with a pull rope (1305) which penetrates through the expansion rod (1306) and extends into the oil inlet hole (1308), and a sealing plug (1309) is installed at the top end of the pull rope (1305).

3. The high-pressure oil pipe joint with good sealing performance as claimed in claim 2, wherein: the oil drain structure is characterized in that a pull ring is installed at the top of the sealing plug (1309), the sealing plug (1309) is matched with the oil inlet (1308), the oil drain hole (1303) is matched with the anti-blocking hole (1304), and the telescopic rod (1306) is located inside the spring (1307).

4. The high-pressure oil pipe joint with good sealing performance as claimed in claim 2, wherein: the height of the oil through groove (1302) is smaller than the diameter of the oil discharge hole (1303), and the oil storage groove (1301) is communicated with the oil inlet hole (1308) and the oil through groove (1302) respectively.

5. The high-pressure oil pipe joint with good sealing performance of claim 1, wherein: the buffer assembly (12) comprises an air cushion (1202), an air pipe (1201) extending to the top of the fixed sleeve (2) is connected to the inside of the air cushion (1202), an air valve (1203) is installed on the outer surface of the air pipe (1201), and the outer wall of the oil pipe (15) is in contact with the inner wall of the air cushion (1202).

6. The high-pressure oil pipe joint with good sealing performance of claim 1, wherein: one side of the movable ring (4) is in contact with one side of the baffle ring (5), and the diameter of the baffle ring (5) is larger than that of the fixed sleeve (2).

7. The high-pressure oil pipe joint with good sealing performance of claim 1, wherein: the movable sleeve (3) is in threaded connection with the joint body (1), and the length of the movable sleeve (3) is larger than that of the limiting ring (17).

8. The high-pressure oil pipe joint with good sealing performance of claim 1, wherein: install sealed pad (11) between fixed cover (2) and joint body (1), sealed pad (11) adopt rubber materials to make and form.

9. The high-pressure oil pipe joint with good sealing performance of claim 1, wherein: the clamping plate (8) is matched with the clamping groove (9), the clamping plate (8) is movably connected with the screw rod (6) through a bearing (7), and a knob is fixed at the top end of the screw rod (6).

Technical Field

The invention relates to the field of high-pressure oil pipe joints, in particular to a high-pressure oil pipe joint with good sealing performance.

Background

The high-pressure oil pipe is a component of a high-pressure oil circuit, the oil pipe is required to bear certain oil pressure, certain fatigue strength is achieved, the sealing requirement of a pipeline is guaranteed, the high-pressure oil pipe for the vehicle is mainly arranged in a high-pressure injection diesel engine and a high-pressure injection gasoline direct injection engine, the oil pressure required in the running process of the engine can be borne, and most high-pressure oil pipe joints are connected with the oil pipe through threads.

According to the Chinese patent with the publication number of CN211203196U, the high-pressure oil pipe joint with good sealing performance is disclosed, the high-pressure oil pipe joint with good sealing performance can simply and conveniently complete the connection between an oil pipe and a high-pressure oil pipe joint body, so that the high-pressure oil pipe joint body and the oil pipe are tightly connected together, a gap at the joint of the oil pipe and the high-pressure oil pipe joint caused under special conditions is effectively avoided, the occurrence of oil leakage is reduced, and the sealing performance is further improved; the clamping plate on the joint moves up and down by rotating the threaded rod, but when the threaded rod is exposed in the air for a long time, the surface of the threaded rod is easy to rust, so that the threaded rod is difficult to unscrew from the connecting ring in the following process, the clamping plate cannot move up and move out of the annular groove, and finally the connecting ring and the fixed sleeve are difficult to detach from the oil pipe joint and the use of the following oil pipe joint is influenced; meanwhile, when the oil pipe vibrates and applies pressure to the joint, the oil pipe joint can bear large vibration force due to the fact that the shock absorption effect of the oil pipe joint is weak, damage to the inside of the oil pipe joint is prone to being caused after the oil pipe joint is used for a long time, and the service life of the oil pipe joint is shortened.

Disclosure of Invention

Based on the technical problems, the invention aims to provide the high-pressure oil pipe joint with good sealing performance so as to solve the technical problems that the threaded rod is easy to rust after being exposed in the air for a long time and further influences the subsequent rotation of the threaded rod and the oil pipe joint is easy to damage when the oil pipe joint is subjected to much pressure applied by an oil pipe for a long time.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high-pressure oil pipe joint that leakproofness is good, includes and connects the body, the inside intermediate position department that connects the body installs solid fixed ring, gu fixed ring's both sides all are provided with fixed cover, two fender ring is all installed to the one end of fixed cover, the inside of fixed cover is provided with oil pipe, the inner wall of fixed cover is provided with the buffering subassembly, the go-between is all installed to the top and the bottom that connect the body, the movable sleeve has all been cup jointed to the surface both sides of connecting the body, the one end of movable sleeve is fixed with the loose collar, the draw-in groove has all been seted up to the top both sides and the bottom both sides of movable sleeve, the both sides of go-between all are fixed with the spacing ring, the internally mounted of spacing ring has the screw rod, the cardboard that extends to the draw-in groove inside is installed through the bearing to the bottom of screw rod, inside one side of spacing ring is provided with oiling subassembly.

Through adopting above-mentioned technical scheme, be provided with the buffering subassembly, can cushion the pressure that oil pipe applied to the joint body to improve the protection effect of joint body, be provided with the draw-in groove, the cardboard card of being convenient for is gone into to the inside of draw-in groove, and is spacing with going on the movable sleeve, improves the stability of movable sleeve, is provided with oiling subassembly, is convenient for add lubricating oil toward the screw rod surface, then can slow down the rusty speed of pole.

Further, the oiling subassembly is including seting up inlet port, oil storage tank and the logical oil groove in the inside one side of spacing ring, the oil through hole has been seted up between oil storage tank and the inlet port, the oil drain hole has been seted up between oil storage tank and the logical oil groove, spring and telescopic link are installed respectively to inside one side of oil storage tank, the one end of spring and telescopic link is connected with and extends to the inside jam that prevents of oil drain hole, the one side of preventing the jam is connected with and runs through the telescopic link and extend to the inside stay cord of inlet port, the sealing plug is installed on the top of stay cord.

Through adopting above-mentioned technical scheme, user's accessible pulling sealing plug to make the stay cord remove, can drive after the stay cord removes and prevent blockking up the removal, can make then prevent blockking up and shift out from the oil extraction downthehole, the existence of telescopic link can prevent that the spring from deforming crooked simultaneously.

Furthermore, a pull ring is installed at the top of the sealing plug, the sealing plug is matched with the oil inlet hole, the oil discharge hole is matched with the anti-blocking hole, and the telescopic rod is located inside the spring.

Through adopting above-mentioned technical scheme, the sealing plug is plugged in to the inside back of inlet port, and the inside lubricating oil of inlet port can't flow, and when needs add lubricating oil to the oil storage tank inside, the user can take out the sealing plug earlier, then alright add lubricating oil toward the oil storage tank inside.

Further, lead to the diameter that highly is less than the oil drain hole of oil groove, the oil storage tank communicates with inlet port and logical oil groove respectively.

Through adopting above-mentioned technical scheme to lubricating oil can enter into to the inside that leads to the oil groove through the oil drain hole, then flows in the surface to the screw rod again, lubricates the screw rod, prevents that the screw rod from weing for a long time and its surface from rustting, and then the subsequent user of being convenient for rotates the screw rod.

Furthermore, buffer unit is including the air cushion, the inside of air cushion has connect the trachea that extends to fixed cover top, tracheal surface mounting has the pneumatic valve, the outer wall of oil pipe contacts with the inner wall of air cushion.

Through adopting above-mentioned technical scheme, can the deformation compression after the air cushion receives external pressure to extrude its inside air, the air can cushion external pressure after being compressed, thereby avoids connecting the body and directly bearing the external impact force, protects the joint body, and the pneumatic valve can prevent that the inside gas of air cushion from discharging at will, and the user can pass through the trachea with gas simultaneously and fill the inside to the air cushion, and inside gas accessible trachea simultaneously discharges.

Furthermore, one side of the movable ring is in contact with one side of the baffle ring, and the diameter of the baffle ring is larger than that of the fixed sleeve.

Through adopting above-mentioned technical scheme, the activity ring can be spacing to keeping off the ring, prevents to keep off the ring removal, has then improved the stability of keeping off after ring and the installation of fixed cover, avoids fixed cover to rock simultaneously.

Furthermore, the movable sleeve is in threaded connection with the joint body, and the length of the movable sleeve is larger than that of the limiting ring.

Through adopting above-mentioned technical scheme, be convenient for with the movable sleeve from connecting the body and unscrew or with its screw in to connecting the body surface to be convenient for carry out the dismouting to the movable sleeve.

Furthermore, install sealed the pad between fixed cover and the joint body, sealed the pad and adopt rubber materials to make and form.

Through adopting above-mentioned technical scheme, improve the leakproofness inside the joint body, prevent that petrol from oozing in the joint body.

Furthermore, the clamping plate is matched with the clamping groove, the clamping plate is movably connected with the screw rod through a bearing, and a knob is fixed at the top end of the screw rod.

Through adopting above-mentioned technical scheme to the cardboard card is gone into to the inside of draw-in groove, then can be further spacing to the movable sleeve, and improved the stability of movable sleeve, user's accessible knob rotates the screw rod simultaneously.

In summary, the invention mainly has the following beneficial effects:

1. by arranging the oil injection assembly, when the surface of the screw needs to be oiled, a user pulls the sealing plug, the sealing plug only moves in the oil inlet hole but cannot move out, so that lubricating oil is prevented from flowing out of the oil inlet hole, the pull rope moves when the sealing plug is continuously pulled, the pull rope can drive the anti-blocking plug to move after moving, after the anti-blocking plug moves out of the oil discharge hole, the lubricating oil in the oil storage groove flows into the oil through groove through the oil discharge hole, then flows to the surface of the screw through the oil through groove, and flows downwards along the surface of the screw so as to integrally lubricate the surface of the screw, so that the surface of the screw can be prevented from rusting, a follow-up user can conveniently rotate the screw to enable the clamping plate to move out of the clamping groove, so that the movable sleeve can be disassembled from the joint body, and when the lubricating oil needs to be added into the oil storage groove, the user only needs to pull out the sealing plug from the oil inlet hole completely, and then the user can add the lubricating oil into the oil inlet hole and make the lubricating oil flow into the oil storage tank for storage;

2. according to the invention, by arranging the buffer assembly, when the oil pipe vibrates and applies pressure to the joint body, the air cushion is stressed and deforms, the compressed air cushion can extrude air in the joint body and compress the air, so that the pressure applied to the oil pipe can be buffered, the joint body is prevented from being subjected to the pressure generated by the oil pipe for a long time, the damage degree of the joint body can be reduced, the protection effect on the joint body is improved, the service life of the joint body is prolonged, when the oil pipe needs to be taken out, a user only needs to open the air valve to discharge the air in the air cushion through the air pipe, so that the air cushion is compressed, the air cushion can be separated from the oil pipe, and then the user can take out the oil pipe.

Drawings

Fig. 1 is a schematic perspective view of the fixing sleeve of the present invention;

FIG. 2 is a schematic front cross-sectional view of the fitting body of the present invention;

FIG. 3 is a perspective view of an attachment ring according to the present invention;

FIG. 4 is a schematic perspective view of the air cushion of the present invention;

FIG. 5 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

fig. 6 is an enlarged view of the invention at B in fig. 2.

In the figure: 1. a connector body; 2. fixing a sleeve; 3. a movable sleeve; 4. a movable ring; 5. a baffle ring; 6. a screw; 7. a bearing; 8. clamping a plate; 9. a card slot; 10. a fixing ring; 11. a gasket; 12. a buffer assembly; 1201. an air tube; 1202. an air cushion; 1203. an air valve; 13. an oiling component; 1301. an oil storage tank; 1302. an oil groove is communicated; 1303. an oil drain hole; 1304. blocking prevention; 1305. pulling a rope; 1306. a telescopic rod; 1307. a spring; 1308. an oil inlet hole; 1309. a sealing plug; 14. an oil through hole; 15. an oil pipe; 16. a connecting ring; 17. a limit ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

The following describes an embodiment of the present invention based on its overall structure.

A high-pressure oil pipe joint with good sealing performance is disclosed, as shown in figures 1, 2, 3 and 6, and comprises a joint body 1, a fixing ring 10 is installed at the middle position inside the joint body 1, fixing rings 2 are arranged on both sides of the fixing ring 10, a baffle ring 5 is installed at one end of each of the two fixing rings 2, an oil pipe 15 is arranged inside each fixing ring 2, a buffer component 12 is arranged on the inner wall of each fixing ring 2 and can buffer the pressure applied to the joint body 1 by the oil pipe 15, so that the protection effect on the joint body 1 is improved, connecting rings 16 are installed at the top and the bottom of the joint body 1, movable sleeves 3 are sleeved on both sides of the outer surface of the joint body 1, a movable ring 4 is fixed at one end of each movable sleeve 3, clamping grooves 9 are formed on both sides of the top and the bottom of each movable sleeve 3, limiting rings 17 are fixed on both sides of each connecting ring 16, so that clamping plates 8 can be clamped into the clamping grooves 9, so as to limit the movable sleeve 3, improve the stability of the movable sleeve 3, a screw 6 is arranged in a limiting ring 17, a clamping plate 8 extending to the inside of a clamping groove 9 is arranged at the bottom end of the screw 6 through a bearing 7, an oil injection component 13 is arranged at one side in the limiting ring 17, one side of the movable ring 4 is contacted with one side of a baffle ring 5, the diameter of the baffle ring 5 is larger than that of a fixed sleeve 2, the movable ring 4 can limit the baffle ring 5 to prevent the baffle ring 5 from moving, so that the stability of the baffle ring 5 and the fixed sleeve 2 after being installed is improved, meanwhile, the fixed sleeve 2 is prevented from shaking, the movable sleeve 3 is in threaded connection with a joint body 1, the length of the movable sleeve 3 is larger than that of the limiting ring 17, the movable sleeve 3 can be conveniently screwed out of the joint body 1 or screwed into the surface of the joint body 1, thereby being convenient for dismounting the movable sleeve 3, a sealing gasket 11 is arranged between the fixed sleeve 2 and the joint body 1, sealed 11 adoption rubber materials of packing pad is made and is formed, improve and connect the inside leakproofness of body 1, prevent that petrol from connecting 1 interior exuding, cardboard 8 and draw-in groove 9 looks adaptation, cardboard 8 passes through bearing 7 and screw rod 6 swing joint, the top of screw rod 6 is fixed with the knob, so that cardboard 8 card is gone into to the inside of draw-in groove 9, then can be further spacing to movable sleeve 3, and improved the stability of movable sleeve 3, user's accessible knob rotates screw rod 6 simultaneously.

Referring to fig. 1, 4 and 5, the oil injection assembly 13 includes an oil inlet 1308, an oil storage tank 1301 and an oil through tank 1302 which are arranged on one side inside the limit ring 17, an oil through hole 14 is arranged between the oil storage tank 1301 and the oil inlet 1308, an oil discharge hole 1303 is arranged between the oil storage tank 1301 and the oil through tank 1302, a spring 1307 and an expansion link 1306 are respectively arranged on one side inside the oil storage tank 1301, one end of the spring 1307 and one end of the expansion link 1306 are connected with an anti-clogging 1304 which extends into the oil discharge hole 1303, one side of the 1304 is connected with a pull rope sealing plug 1305 which extends through the expansion link 1306 and into the oil inlet 1308, the top end of the pull rope 1305 is provided with an anti-clogging 1309, a user can move the pull rope 1305 by pulling the sealing plug 1309, the anti-clogging 1304 can be driven to move after the pull rope 1305 moves out of the anti-clogging 1304, the anti-clogging 1304 can be moved out of the oil discharge hole 1303, meanwhile, the presence of the expansion link 1306 can prevent the spring 1307 from deforming and bending, the top of the sealing plug 1309 is provided, sealing plug 1309 and inlet 1308 looks adaptation, oil drain 1303 and prevent blockking up 1304 looks adaptation, telescopic link 1306 is located the inside of spring 1307, sealing plug 1309 is plugged in to the inside back of inlet 1308, the inside lubricating oil of inlet 1308 can not flow out, when need add lubricating oil to oil storage tank 1301 inside, the user can take out sealing plug 1309 earlier, then alright add lubricating oil to oil storage tank 1301 inside, the height that leads to oil storage tank 1302 is less than the diameter of oil drain 1303, oil storage tank 1301 is linked together with inlet 1308 and logical oil tank 1302 respectively, so that lubricating oil can enter into the inside that leads to oil tank 1302 through oil drain 1303, then flow in to the surface of screw 6 again, lubricate screw 6, prevent that screw 6 from weing for a long time and its surface from rustting, and then be convenient for subsequent user to rotate screw 6.

Referring to fig. 4 and 6, the buffering assembly 12 includes an air cushion 1202, an air tube 1201 extending to the top of the fixing sleeve 2 is connected to the inside of the air cushion 1202, an air valve 1203 is installed on the outer surface of the air tube 1201, the outer wall of the oil tube 15 contacts with the inner wall of the air cushion 1202, the air cushion 1202 deforms and compresses under external pressure and extrudes air inside the air cushion 1202, the air is compressed and then can buffer external pressure, so as to prevent the joint body 1 from directly bearing external impact force, so as to protect the joint body 1, the air valve 1203 can prevent air inside the air cushion 1202 from being discharged at will, a user can fill air into the air cushion 1202 through the air tube 1201, and the air inside can be discharged through the air tube 1201 at the same time.

The implementation principle of the embodiment is as follows: firstly, a user inserts a section of the fixing sleeve 2 into the joint body 1, and makes the outer wall of the fixing sleeve 2 fit with the sealing gasket 11, then inserts the oil pipe 15 into the fixing sleeve 2, and makes one end of the oil pipe 15 contact with the fixing ring 10, then opens the air valve 1203, fills the air into the air cushion 1202 through the air pipe 1201, so that the air cushion 1202 expands and fits with the surface of the oil pipe 15, and along with the continuous filling of the air, the air cushion 1202 can tightly contact with the outer wall of the oil pipe 15, then rotates the movable sleeve 3, makes the movable sleeve 3 fit on the joint body 1, and makes one end of the movable ring 4 contact with one side of the baffle ring 5, then the user rotates the screw 6, so that the clamping plate 8 moves downwards and is clamped into the clamping groove 9, and further limits the movable sleeve 3, when the oil pipe 15 vibrates and applies pressure to the joint body 1, the air cushion 1202 is stressed and deformed, the air cushion 1202 compresses to press the air therein and compress the air, so that the pressure applied by the oil pipe 15 can be buffered, when the surface of the screw 6 needs to be oiled, a user pulls the sealing plug 1309, the sealing plug 1309 only moves in the oil inlet 1308 but does not move out, so that the lubricating oil is prevented from flowing out of the oil inlet 1308, and when the sealing plug 1309 is continuously pulled, the pull rope 1305 moves and can drive the anti-blockage 1304 to move, when the anti-blockage 1304 moves out of the oil discharge hole 1303, the lubricating oil in the oil storage tank 1301 flows into the oil through tank 1302 through the oil discharge hole 1303, then flows to the surface of the screw 6 through the oil through tank 1302, and flows downwards along the surface of the screw 6 to integrally lubricate the surface of the screw 6, and when the lubricating oil needs to be added into the oil storage tank 1301, the user only needs to pull the sealing plug 1309 out of the oil inlet 1308 completely, and at this time, the user can add the lubricating oil into the oil inlet 1308 and make the lubricating oil flow into the oil storage tank 1301 for storage.

Although embodiments of the present invention have been shown and described, it is intended that the present invention should not be limited thereto, that the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples, and that modifications, substitutions, variations or the like, which are not inventive and may be made by those skilled in the art without departing from the principle and spirit of the present invention and without departing from the scope of the claims.