CN220851103U

CN220851103U - Sealing joint

Info

Publication number: CN220851103U
Application number: CN202322416331.0U
Authority: CN
Inventors: 王飞飞
Original assignee: Suzhou Reliable Precision Hardware Co ltd
Current assignee: Suzhou Reliable Precision Hardware Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-04-26
Anticipated expiration: 2033-09-06

Abstract

The utility model discloses a sealing joint, relates to the technical field of joints, and aims to solve the problem that the joint is poor in sealing performance. The utility model is provided with a connector seat, a locking piece is connected on the peripheral wall of the oil outlet end of the connector seat in a threaded manner, a space for accommodating a taper sleeve is formed between the connector seat and the locking piece, the taper sleeve is positioned in the space, and the locking piece abuts against the taper sleeve to the end face of the oil outlet end of the connector seat; the outer peripheral wall of the taper sleeve is sleeved with a first sealing piece, and the outer peripheral wall of the first sealing piece abuts against the inner peripheral wall of the locking piece; a second sealing piece is embedded at the joint of the taper sleeve and the joint seat; the third sealing piece is sleeved on the peripheral wall of the joint seat and is positioned between the joint seat and the locking piece. When liquid is introduced into the joint seat, the second sealing piece is used for sealing a gap between the joint seat and the taper sleeve; the first sealing piece is used for sealing a gap between the taper sleeve and the locking piece; the third sealing piece is used for sealing a gap between the locking piece and the joint seat.

Description

Sealing joint

Technical Field

The utility model relates to the technical field of joints, in particular to a sealing joint.

Background

The joint is equipment which is arranged between cables and has certain insulation and sealing performance, so that two or more cables can continuously run.

The fittings used in oil circuits today typically employ a screw-on seal. The sealing mode can rust at the thread of the joint in the long-time use process, so that a gap is formed between the joints, oil can flow out of the gap, the sealing performance of the sealing connection mode is poor, and the problem of poor sealing performance of the joint exists.

Disclosure of utility model

In order to solve the technical problems, the utility model provides a sealing joint which is used for solving the problem that leakage occurs to the joint due to poor sealing performance in the using process.

The technical scheme of the utility model is as follows: the sealing joint comprises a joint seat, wherein a locking piece is connected to the peripheral wall of the oil outlet end of the joint seat in a threaded manner, a space for accommodating a taper sleeve is formed between the joint seat and the locking piece, the taper sleeve is positioned in the space, and the locking piece abuts against the taper sleeve to the end face of the oil outlet end of the joint seat; the outer peripheral wall of the taper sleeve is sleeved with a first sealing piece, and the outer peripheral wall of the first sealing piece abuts against the inner peripheral wall of the locking piece; a second sealing piece is embedded at the joint of the taper sleeve and the joint seat; and a third sealing piece is sleeved on the peripheral wall of the joint seat and is positioned between the joint seat and the locking piece.

Further, the connector base is of a tubular structure, an oil outlet is formed in the end face of the oil outlet end, a circulating hole penetrating through the connector base is formed in the inner bottom face of the oil outlet, and the oil outlet and the circulating hole are coaxially arranged and communicated.

Further, an inner ring groove is formed in the inner peripheral wall of the joint seat, which is located at the oil outlet, and the second sealing piece is embedded in the inner ring groove.

Further, a threaded table is formed on the peripheral wall of the joint seat corresponding to the oil outlet in a radial outward extending mode, the end face of the threaded table and the end face of the joint seat are located on the same plane, and external threads are formed on the outer surface of the threaded table; and an inner thread matched with the outer thread is formed on the inner wall of the locking piece.

Further, a boss is formed on the peripheral wall of the joint seat, which is positioned at the oil outlet, and is outwards formed in the radial direction, an outer annular groove is formed between the boss and the threaded table, and the third sealing piece is embedded in the outer annular groove; a smooth transition surface is formed between the end surface of the boss and the outer surface of the joint seat.

Further, an inverted conical surface is formed on the bottom surface of the locking piece in the space, and the end surface of the taper sleeve is abutted against the inverted conical surface; the end face of the locking piece is provided with a through hole communicated with the inverted conical surface.

Further, the first sealing piece is provided with a first sealing ring and a second sealing ring, and the inner diameter of the first sealing ring is larger than that of the second sealing ring; the end face of the first sealing ring is propped against the end face of the joint seat; and a curved surface which is attached to the outer surface of the taper sleeve is arranged on the inner peripheral wall of the second sealing ring.

Further, the second seal and the third seal are both O-rings or gaskets.

The beneficial technical effects of the utility model are as follows:

when liquid is introduced into the joint seat, the second sealing piece is used for sealing a gap between the joint seat and the taper sleeve; the first sealing piece is used for sealing a gap between the taper sleeve and the locking piece; the third sealing piece is used for sealing a gap between the locking piece and the joint seat. Under the multiple protection, the liquid in the joint seat is difficult to flow out from the joint seat, thereby achieving good sealing effect.

Drawings

FIG. 1 is an oblique view of a hermetic joint of the present utility model;

FIG. 2 is a cross-sectional view of the joint mount;

fig. 3 is a cross-sectional view of the hermetic joint of the present utility model.

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a partial enlarged view at B in FIG. 3;

Fig. 6 is a partial enlarged view at C in fig. 3.

Wherein, 1, the joint seat; 11. an oil outlet hole; 111. an inner ring groove; 112. a boss; 113. an outer ring groove; 114. a transition surface; 12. a flow hole; 13. a threaded platform; 2. a locking member; 21. a through hole; 22. a space; 3. a first seal; 31. a first seal ring; 32. a second seal ring; 322. a curved surface; 4. a second seal; 5. a third seal; 6. and (5) a taper sleeve.

Detailed Description

In order that the manner in which the above recited features of the present utility model are attained and can be understood in detail, a more particular description of the utility model, briefly summarized below, may be had by reference to the appended drawings and examples, which are illustrated in their embodiments, but are not intended to limit the scope of the utility model.

The sealing joint according to this embodiment, as shown in fig. 2, includes a joint seat 1, where the joint seat 1 is mainly used for accommodating the flow of the liquid, and the joint seat 1 is made of HPb58-2, which has high conductivity, high temperature resistance, and an effect of reducing spark generated when oil passes through. The joint seat 1 is tubular structure and its terminal surface that is located the oil outlet end has seted up oil outlet 11, has seted up on the interior bottom surface of oil outlet 11 run through joint seat 1 and with oil outlet 11 intercommunication's circulation hole 12, oil outlet 11 and the coaxial setting of circulation hole 12 and oil outlet 11's internal diameter is greater than the internal diameter of circulation hole 12, if oil outlet 11's internal diameter is 10.6mm, the internal diameter of circulation hole 12 is 8.6mm. By this arrangement, the flow rate of the oil outlet hole 11 is larger than that of the flow hole 12, so that the hydraulic pressure in the oil outlet hole 11 is small, and the liquid flowing through the oil outlet hole 11 is difficult to flow out through the gap between the joint base 1 and the part adjacent to the joint base 1.

As shown in fig. 1, 2 and 5, a locking piece 2 is connected to the outer peripheral wall of the oil outlet end of the connector base 1 in a threaded manner, the locking piece 2 is in a hexagonal cylindrical shape, the central axis of the locking piece 2 is coaxial with the central axis of the connector base 1, and the locking piece 2 is made of HPb58-2. A threaded platform 13 extends radially outwards on the outer peripheral wall of the joint seat 1 corresponding to the oil outlet 11. Since the joint seat 1 is circular in the present embodiment, the screw boss 13 is circular in shape. The outer diameter of the threaded stage 13 will be larger than the outer diameter of the joint seat 1 so that the inner diameter of the locking member 2 can be set larger, thereby enabling easier mounting of the locking member 2 on the threaded stage 13. The end surface of the screw thread platform 13 is positioned on the same plane with the end surface of the joint seat 1, namely, the screw thread platform 13 is positioned at one end of the joint seat 1. The outer surface of screw thread platform 13 is formed with the external screw thread, is formed with the internal screw thread with external screw thread assorted on the interior perisporium of retaining member 2, retaining member 2 threaded connection in screw thread platform 13 department, carries out the locking through internal, external screw thread between retaining member 2 and the screw thread platform 13. The threaded platform 13 is detachably connected in the locking member 2 by screwing.

As shown in fig. 1 to 3 and 6, a space 22 for accommodating the cone sleeve 6 is formed between the joint base 1 and the locker 2. The taper sleeve 6 is positioned in the space 22, and the locking piece 2 abuts against the taper sleeve 6 to the end face of the oil outlet end of the joint seat 1. The bottom surface of the locking member 2 in the space 22 is formed with an inverted conical surface, and the top end surface of the taper sleeve 6 abuts against the inverted conical surface. Because the radial cross-sectional areas of the inverted conical surfaces at different positions are different greatly, the conical sleeves 6 of different types can be installed in the space 22. The end face of the locking member 2 is provided with a through hole 21 communicating with the tapered structure. The inner diameter of the through hole 21 is equal to the inner diameter of the oil outlet hole 11. The taper sleeve 6 is in a shape of a conical round table, a circular ring is integrally formed on the bottom surface of the taper sleeve 6 in an outward extending mode along the radial direction, the outer diameter of the circular ring is larger than the maximum outer diameter of the round table, and the inner diameter of the circular ring is equal to the inner diameter of the round table. The first sealing member 3 is sleeved on the outer peripheral wall of the taper sleeve 6, and the outer peripheral wall of the first sealing member 3 abuts against the inner peripheral wall of the locking member 2. The outer peripheral wall of the first sealing piece 3 is propped against the inner peripheral wall of the locking piece 2, the inner peripheral wall of the first sealing piece 3 is propped against the outer peripheral wall of the taper sleeve 6, and the bottom end surface of the first sealing piece 3 is propped against the end surface of the oil outlet end of the joint seat 1. The first sealing member 3 is an elastic member having elastic deformation property, and is mainly used for filling the space 22 so as to tightly press the taper sleeve 6 on the end face of the oil outlet end of the joint seat 1, and simultaneously can seal the end face, so that liquid is difficult to flow out from the inside of the oil outlet 11. The first sealing member 3 is formed with first sealing ring 31 and second sealing ring 32, and the internal diameter of first sealing ring 31 is greater than the internal diameter of second sealing ring 32, and the terminal surface of first sealing ring 31 offsets with the oil outlet end terminal surface of joint seat 1, is provided with the curved surface 322 that laminates with the surface of taper sleeve 6 on the inner peripheral wall of second sealing ring 32. In the process of screwing the locking piece 2, the locking piece 2 is screwed into the direction of the joint seat 1 and axially presses the first sealing piece 3, and the first sealing piece 3 further presses the taper sleeve 6, so that the bottom end surface of the taper sleeve 6 is tightly abutted with the joint seat 1, and the sealing effect is achieved.

As shown in fig. 1, 3 and 4, the junction of the cone sleeve 6 and the joint seat 1 is embedded with a second sealing element 4. Specifically, the inner circumferential wall of the joint seat 1, which is close to the end face of the oil outlet end and is positioned at the oil outlet 11, is provided with an inner ring groove 111, and the inner ring groove 111 is a ring groove with a rectangular section. The second sealing element 4 is embedded in the inner annular groove 111, and the taper sleeve 6 is extruded by the locking element 2 and exerts a force on the second sealing element 4, so that the second sealing element 4 is pressed tightly and has good sealing effect.

As shown in fig. 1, 2, 3 and 5, the outer peripheral wall of the joint seat 1 is sleeved with a third sealing member 5, and the third sealing member 5 is located between the joint seat 1 and the locking member 2. The locking member 2 wears during long use so that liquid can escape from the threads of the locking member 2 and the third seal 5 is used to seal liquid escaping from the locking member 2. A boss 112 is formed radially outwardly on the outer peripheral wall of the joint seat 1 at the oil outlet hole 11, and when the joint seat 1 is used, a worker can press his or her hand against the boss 112 to apply a force. An outer ring groove 113 is formed between the boss 112 and the screw boss 13, and the third seal 5 is fitted in the outer ring groove 113. When the locking member 2 is screwed, the third sealing member 5 is pressed by the acting force of the locking member 2 and the boss 112, so that a better sealing effect is achieved. Meanwhile, the third sealing element 5 also has a good buffer effect, when the locking element 2 is screwed on the threaded table 13, the end face of the locking element 2 can be propped against the third sealing element 5, and the third sealing element 5 can play a good role in buffering, so that the damage to external threads or internal threads caused by excessive force of workers is avoided. The second seal 4 and the third seal 5 are both O-rings or gaskets. Wherein the O-shaped ring is easy to manufacture and convenient to install and detach. And can be replaced in time after long-time use and aging. When the second seal 4 and the third seal 5 are O-rings, the outer diameter of the second seal 4 is 9.53mm and the inner diameter of the second seal 4 is 2.62mm. The outer diameter of the third seal 5 is 7.5mm and the inner diameter of the third seal 5 is 1.8mm. The gasket is a sealing cushion, can be a rubber cushion and the like, and is usually adhered in the groove by using colloid, but the sealing effect is better, and the gasket can also have better buffering effect. A smooth transition surface 114 is formed between the end surface of the boss 112 and the outer surface of the joint seat 1, and when a finger of a worker applies a force on the boss 112, the transition surface 114 can enable the finger to apply force more easily; at the same time, cracks formed between the connection parts of the boss 112 and the joint seat 1 can be relieved, so that the service life of the joint seat 1 is prolonged.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and it should be noted that it is possible for those skilled in the art to make several improvements and modifications without departing from the technical principle of the present utility model, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. The sealing joint comprises a joint seat (1), wherein a locking piece (2) is connected to the peripheral wall of the oil outlet end of the joint seat (1) in a threaded manner, and the sealing joint is characterized in that a space (22) for accommodating a taper sleeve (6) is formed between the joint seat (1) and the locking piece (2), the taper sleeve (6) is positioned in the space (22), and the locking piece (2) abuts against the taper sleeve (6) to the end face of the oil outlet end of the joint seat (1); the outer peripheral wall of the taper sleeve (6) is sleeved with a first sealing piece (3), and the outer peripheral wall of the first sealing piece (3) is propped against the inner peripheral wall of the locking piece (2); a second sealing piece (4) is embedded at the joint of the taper sleeve (6) and the joint seat (1); the third sealing piece (5) is sleeved on the peripheral wall of the joint seat (1), and the third sealing piece (5) is positioned between the joint seat (1) and the locking piece (2).

2. The sealing joint according to claim 1, wherein the joint seat (1) is of a tubular structure, an oil outlet hole (11) is formed in the end face of the joint seat, which is located at the oil outlet end, a circulation hole (12) penetrating the joint seat (1) and communicated with the oil outlet hole (11) is formed in the inner bottom surface of the oil outlet hole (11), the oil outlet hole (11) and the circulation hole (12) are coaxially arranged, and the inner diameter of the oil outlet hole (11) is larger than the inner diameter of the through hole (21).

3. The sealing joint according to claim 2, wherein an inner ring groove (111) is formed in an inner peripheral wall of the joint seat (1) close to the end face of the oil outlet end and located at the oil outlet hole (11), and the second sealing element (4) is embedded in the inner ring groove (111).

4. The sealing joint according to claim 2, wherein a threaded platform (13) is formed on the outer peripheral wall of the joint seat (1) corresponding to the oil outlet hole (11) in a radially outward extending manner, the end face of the threaded platform (13) and the end face of the joint seat (1) are located on the same plane, and an external thread is formed on the outer surface of the threaded platform (13); the inner wall of the locking piece (2) is provided with an internal thread matched with the external thread, and the locking piece (2) is in threaded connection with the threaded table (13).

5. The sealing joint according to claim 4, wherein a boss (112) is formed radially outwards on the outer peripheral wall of the joint seat (1) at the oil outlet hole (11), an outer ring groove (113) is formed between the boss (112) and the screw thread table (13), and the third sealing member (5) is embedded in the outer ring groove (113).

6. The sealing joint according to claim 1, characterized in that the bottom surface of the locking member (2) located in the space (22) is formed with an inverted conical surface, against which the end surface of the cone sleeve (6) abuts; the end face of the locking piece (2) is provided with a through hole (21) communicated with the inverted conical surface.

7. The sealing joint according to claim 1, characterized in that the first sealing member (3) is formed with a first sealing ring (31) and a second sealing ring (32), the inner diameter of the first sealing ring (31) being larger than the inner diameter of the second sealing ring (32); the end face of the first sealing ring (31) is propped against the end face of the joint seat (1); and a curved surface (322) attached to the outer surface of the taper sleeve (6) is arranged on the inner peripheral wall of the second sealing ring (32).

8. The sealing joint according to claim 1, characterized in that the second seal (4) and the third seal (5) are both O-rings or gaskets.