CN215488153U

CN215488153U - A leak-proof sealed pipe joint for hydraulic system

Info

Publication number: CN215488153U
Application number: CN202121736738.6U
Authority: CN
Inventors: 王奎东; 陆佳磊
Original assignee: Haiyan Pipe Fittings Manufacturing Co ltd
Current assignee: Haiyan Pipe Fittings Manufacturing Co ltd
Priority date: 2021-07-28
Filing date: 2021-07-28
Publication date: 2022-01-11
Anticipated expiration: 2031-07-28

Abstract

The utility model discloses a leak-proof sealing pipe joint for a hydraulic system, which comprises a pipe body, a mounting groove, a first threaded part, a plugging groove, a plugging block, sealing grooves, sealing blocks, a mounting block, a connecting block, a second threaded part, a sleeve, a third threaded part, a first opening and a second opening, wherein two ends of the pipe body are respectively provided with an annular mounting groove, the inner side groove wall of the mounting groove is provided with the first threaded part, the inner side groove wall and the outer side groove wall of the mounting groove are respectively provided with the plugging groove, the notches of the two plugging grooves are oppositely arranged, an annular plugging block is arranged between the two plugging grooves, the plugging block is in sealing sliding fit with the plugging grooves, the outer side groove wall of the mounting groove is provided with a plurality of annular sealing grooves, and each sealing groove is internally provided with an annular sealing block, compared with the prior art, the sealing performance and the fastening performance of the hydraulic pipe joint can be obviously improved, the safety of hydraulic pipe joint has been promoted, simple structure, convenient to use, facilitate promotion and application.

Description

Leak-proof sealing pipe joint for hydraulic system

[ technical field ] A method for producing a semiconductor device

The utility model relates to the technical field of pipe joints, in particular to a leakage-proof sealing pipe joint for a hydraulic system.

[ background of the utility model ]

The hydraulic pipe joint is a detachable connecting piece between an oil pipe and an oil pipe, and between the oil pipe and a hydraulic element, and meets the requirements of convenient assembly and disassembly, firm connection, reliable sealing, small overall dimension, large oil passing capacity, small pressure loss, good processing manufacturability and the like. According to the connection mode of the oil pipe and the pipe joint, the pipe joint mainly has the modes of welding, clamping sleeve type, flaring type, buckling type and the like; in each type of pipe joint, the types of the pipe joint are straight-through, right-angle, three-way and the like according to the number and the direction of passages of the joint; the connection mode with the machine body comprises a threaded connection mode, a flange connection mode and the like. In addition, some pipe joints meeting special purposes exist, the sealing performance and the fastening performance of the traditional hydraulic pipe joint are poor, the leakage of hydraulic oil occurs sometimes, and potential safety hazards exist.

[ Utility model ] content

The utility model aims to solve the problems in the prior art and provides a leakage-proof sealing pipe joint for a hydraulic system.

In order to achieve the purpose, the utility model provides a leakage-proof sealing pipe joint for a hydraulic system, which comprises a pipe body, a mounting groove, a first thread part, a plugging groove, a plugging block, a sealing groove, a sealing block, a mounting block, a connecting block, a second thread part, a sleeve, a third thread part, a first opening and a second opening, wherein the two ends of the pipe body are respectively provided with an annular mounting groove, the inner side groove wall of the mounting groove is provided with the first thread part, the inner side groove wall and the outer side groove wall of the mounting groove are respectively provided with the plugging groove, the notches of the two plugging grooves are oppositely arranged, an annular plugging block is arranged between the two plugging grooves, the plugging block is in sealing sliding fit with the plugging grooves, the outer side groove wall of the mounting groove is provided with a plurality of annular sealing grooves, each sealing groove is internally provided with an annular sealing block, and the sealing blocks are fixedly connected with the sealing grooves in a sealing manner, the utility model discloses a mounting structure, including body, installation piece, connecting block, sleeve, second screw thread portion, every, second screw thread portion, sleeve, second opening and first opening, the outside cell wall of mounting groove is evenly seted up a plurality of second openings that distribute along the axis direction of installation piece, the second opening is the same and the position one-to-one along the axis direction of mounting groove, the installation piece of round platform shape is all fixed the cover in the outside at the both ends of body, the outside position of body is located fixed cover and is equipped with two columnar connecting blocks between two installation pieces, second screw thread portion, every are seted up to the outside portion of connecting block the sleeve, third screw thread portion and second screw thread portion threaded connection, a plurality of first openings that distribute along the axis direction of installation piece are evenly seted up to the lateral part of installation piece, the second opening is the same with first opening quantity and the position one-to-one.

Preferably, the longitudinal section of the plugging groove is a right trapezoid, the longitudinal section of the plugging block is an isosceles trapezoid, and the axial width of the plugging block is smaller than that of the plugging groove.

Preferably, the longitudinal section of the sealing block is isosceles trapezoid, and the inner ring surface of the sealing block protrudes outside the sealing groove.

Preferably, the diameter of the end, facing the connecting block, of the mounting block is smaller than that of the connecting block, and the diameter of the end, facing away from the connecting block, of the mounting block is larger than that of the connecting block.

Preferably, the cross section of the sleeve is a regular polygon, the outer side of the pipe body is located on the two sleeve diameter sleeves, springs are sleeved on the outer side of the pipe body, annular anti-slip blocks are fixedly arranged at two ends of each spring, anti-slip lines are arranged at one ends, facing the sleeve, of the anti-slip blocks, the anti-slip lines are arranged at one ends, facing the anti-slip blocks, of the sleeves, and the anti-slip blocks are abutted to the sleeves.

The utility model has the beneficial effects that: the utility model arranges annular mounting grooves at both ends of the pipe body, arranges a first screw thread part at the inner side wall of the mounting groove, arranges plugging grooves at both the inner side wall and the outer side wall of the mounting groove, the notches of the two plugging grooves are arranged opposite, a plugging block is arranged between the two plugging grooves, the plugging block is in sealing sliding fit with the plugging grooves, a plurality of annular sealing grooves are arranged at the outer side wall of the mounting groove, a sealing block is arranged in each sealing groove, the sealing block can be extruded by the side wall of the hydraulic pipe and retracted into the sealing groove in the process of screwing the hydraulic pipe into the mounting groove, the sealing block is tightly jointed with the side wall of the hydraulic pipe to play a sealing role, the inner end of the hydraulic pipe can extrude the plugging block to tightly joint with the plugging grooves, the plugging block is tightly jointed with the inner end of the hydraulic pipe to play a sealing role, then the sleeve is rotated to screw the sleeve towards the mounting block, the installation block is of a round platform-shaped structure, so that the sleeve can extrude the installation block, the installation block can extrude the pipe wall of the end part of the pipe body, the pipe wall of the end part of the pipe body is contracted, the side wall of the installation groove is more tightly connected with the side wall of the hydraulic pipe, the hydraulic pipe is effectively prevented from being separated from the installation groove due to overlarge pressure, the tightness of the connection of the installation groove and the hydraulic pipe is improved, the side part of the installation block is provided with the first openings, the groove wall of the outer side of the installation groove is provided with the second openings, the pressure of the sleeve on the installation block is more easily transmitted to the pipe body, and the end part of the pipe body is contracted to tightly press the hydraulic pipe. Compared with the prior art, can show leakproofness and the fastening nature that promotes hydraulic pressure coupling, promote hydraulic pressure coupling's security, simple structure, convenient to use, facilitate promotion and application.

The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a sectional view of a leak-proof pipe joint for a hydraulic system according to the present invention.

FIG. 2 is a side view of the leak-proof sealing pipe joint for a hydraulic system.

In the figure: the anti-skid device comprises a pipe body 1, a mounting groove 2, a first thread portion 3, a blocking groove 4, a blocking block 5, a sealing groove 6, a sealing block 7, a mounting block 8, a connecting block 9, a second thread portion 10, a sleeve 11, a third thread portion 12, a first opening 13, a second opening 14, a spring 15 and an anti-skid block 16.

[ detailed description ] embodiments

Referring to fig. 1 and 2, the leak-proof sealed pipe joint for a hydraulic system of the present invention comprises a pipe body 1, a mounting groove 2, a first thread portion 3, a plugging groove 4, a plugging block 5, a sealing groove 6, a sealing block 7, a mounting block 8, a connecting block 9, a second thread portion 10, a sleeve 11, a third thread portion 12, a first opening 13 and a second opening 14, wherein both ends of the pipe body 1 are respectively provided with the annular mounting groove 2, the inner side wall of the mounting groove 2 is provided with the first thread portion 3, the inner side wall and the outer side wall of the mounting groove 2 are respectively provided with the plugging groove 4, the notches of the two plugging grooves 4 are oppositely arranged, the annular plugging block 5 is arranged between the two plugging grooves 4, the plugging block 5 is in sealing sliding fit with the plugging grooves 4, the outer side wall of the mounting groove 2 is provided with a plurality of annular sealing grooves 6, and each sealing groove 6 is internally provided with the annular sealing block 7, the sealing block 7 is fixedly connected with the sealing groove 6 in a sealing manner, the outer sides of two ends of the pipe body 1 are fixedly sleeved with the mounting blocks 8 in a circular truncated cone shape, the outer side part of the pipe body 1 is fixedly sleeved between the two mounting blocks 8 and is provided with two columnar connecting blocks 9, the outer side part of each connecting block 9 is provided with a second thread part 10, the outer side of each connecting block 9 is sleeved with a sleeve 11, the inner wall of each sleeve 11 is provided with a third thread part 12, the third thread part is in threaded connection with the second thread part 10, the side part of each mounting block 8 is uniformly provided with a plurality of first openings 13 distributed along the axial direction of the mounting block 8, the outer side groove wall of the mounting groove 2 is uniformly provided with a plurality of second openings 14 distributed along the axial direction of the mounting groove 2, the second openings 14 are the same in number and correspond to the first openings 13 in position one to one, and the longitudinal section of the plugging groove 4 is in a right trapezoid shape, the longitudinal section of plugging block 5 is isosceles trapezoid, the axial width of plugging block 5 is less than the axial width of shutoff groove 4, the longitudinal section of sealed piece 7 is isosceles trapezoid, the inside annular protrusion of sealed piece 7 is in the outside of seal groove 6, the diameter of installation piece 8 towards the one end of connecting block 9 is less than the diameter of connecting block 9, the diameter that installation piece 8 deviates from the one end of connecting block 9 is greater than the diameter of connecting block 9, the cross section of sleeve 11 is regular polygon, the outside portion of body 1 is located two sleeve 11 diameter covers and is equipped with spring 15, annular non slipping spur 16 is all fixed to be equipped with at the both ends of spring 15, non slipping 16 is equipped with anti-skidding line towards the one end of sleeve 11, sleeve 11 is equipped with anti-skidding line towards the one end of non slipping 16, non slipping 16 and sleeve 11 butt.

The working process of the utility model is as follows: the end part of a hydraulic pipe to be connected is inserted into the mounting groove 2, the thread on the inner wall of the hydraulic pipe is in threaded connection with the first thread part 3 on the inner side wall of the mounting groove 2, in the process that the hydraulic pipe is screwed into the mounting groove 2, the sealing block 7 in the sealing groove 6 is extruded by the hydraulic pipe and retracts into the sealing groove 6, the sealing block 7 is tightly connected with the outer wall of the hydraulic pipe due to the elasticity of the sealing block 7, after the inner end of the hydraulic pipe passes through the mounting groove 2, the inner end of the hydraulic pipe is abutted against the side part of the blocking block 5, the inner end of the hydraulic pipe pushes the blocking block 5 to move towards one end of the blocking groove 4 departing from the mounting groove 2, so that the side part of the blocking block 5 is more tightly connected with the side wall of the blocking groove 4, then the sleeve 11 is rotated to lead the sleeve 11 to be screwed towards the mounting block 8, and the diameter of the inner cavity of the sleeve 11 is smaller than that of the thicker end of the mounting block 8 due to the circular truncated cone-shaped structure of the mounting block 8, so can let installation piece 8 shrink along first opening 13 during sleeve 11 extrusion installation piece 8's outer wall, the outer wall at 1 both ends of body can shrink along second opening 14 this moment, the outer wall of body 1 compresses tightly the outer wall of hydraulic pressure pipe, the fastening nature of body 1 with hydraulic pressure union coupling has been promoted, under spring 15's elastic force effect, two non slipping spur 16 can respectively with two sleeve 11's looks remote site butt, make sleeve 11 difficult not hard up, compared with the prior art, can show leakproofness and the fastening nature that promotes hydraulic pressure coupling, the security that has promoted hydraulic pressure coupling, moreover, the steam generator is simple in structure, high durability and convenient use, and convenient popularization and application.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.

Claims

1. A leak-proof sealed pipe joint for a hydraulic system, characterized in that it comprises a pipe body (1), an installation groove (2), a first threaded portion (3), a plugging groove (4), and a plugging block (5). ), sealing groove (6), sealing block (7), mounting block (8), connecting block (9), second threaded part (10), sleeve (11), third threaded part (12), first The opening (13) and the second opening (14), both ends of the pipe body (1) are provided with annular mounting grooves (2), and the inner groove wall of the mounting groove (2) is provided with a first The threaded portion (3), the inner groove wall and the outer groove wall of the mounting groove (2) are provided with blocking grooves (4), and the notches of the two blocking grooves (4) are arranged facing each other, and the two An annular blocking block (5) is arranged between the blocking grooves (4), the blocking block (5) is in sealing and sliding fit with the blocking groove (4), and the outer side of the installation groove (2) A plurality of annular sealing grooves (6) are opened on the groove wall of the groove, and each sealing groove (6) is provided with an annular sealing block (7), and the sealing block (7) is connected to the sealing groove (6). ) sealed and fixed connection, the outer sides of both ends of the pipe body (1) are fixedly sleeved with a circular truncated mounting block (8), and the outer part of the pipe body (1) is located between the two mounting blocks (8). The fixed sleeve is provided with two columnar connection blocks (9), the outer side of the connection blocks (9) is provided with a second threaded portion (10), and the outer side of each of the connection blocks (9) is sleeved with a sleeve A barrel (11), the inner wall of the sleeve (11) is provided with a third threaded portion (12), the third threaded portion is threadedly connected with the second threaded portion (10), and the side of the mounting block (8) is A plurality of first openings (13) distributed along the axial direction of the mounting block (8) are evenly opened in the part of the mounting groove (2), and a plurality of first openings (13) distributed along the axial direction of the mounting groove (2) are evenly opened on the outer groove wall of the mounting groove (2). The second openings (14) are the same in number as the first openings (13) and their positions correspond one-to-one.

2. A leak-proof sealed pipe joint for hydraulic system according to claim 1, characterized in that: the longitudinal section of the blocking groove (4) is a right-angled trapezoid, and the longitudinal section of the blocking block (5) is a right-angled trapezoid. It is an isosceles trapezoid, and the axial width of the blocking block (5) is smaller than the axial width of the blocking groove (4).

3. A leak-proof sealing pipe joint for hydraulic system according to claim 1, characterized in that: the longitudinal section of the sealing block (7) is an isosceles trapezoid, and the inner annular surface of the sealing block (7) is in the shape of an isosceles trapezoid. It protrudes outside the sealing groove (6).

4. A leak-proof sealed pipe joint for a hydraulic system according to claim 1, wherein the diameter of the end of the mounting block (8) facing the connecting block (9) is smaller than the diameter of the connecting block (9), The diameter of the end of the mounting block (8) facing away from the connecting block (9) is larger than the diameter of the connecting block (9).

5. The leak-proof sealed pipe joint for hydraulic systems according to any one of claims 1 to 4, characterized in that: the cross section of the sleeve (11) is a regular polygon, and the pipe body (11) is a regular polygon. ) is located on the outer side of the two sleeves (11) with a diameter sleeve of a spring (15), both ends of the spring (15) are fixed with annular anti-skid blocks (16), the anti-skid blocks (16) The end facing the sleeve (11) is provided with anti-skid lines, and the end of the sleeve (11) facing the anti-skid block (16) is provided with anti-skid lines, and the anti-skid block (16) is in contact with the sleeve (11).