CN210397299U

CN210397299U - Sealing device for splicing oil cylinders

Info

Publication number: CN210397299U
Application number: CN201921310941.XU
Authority: CN
Inventors: 江明正
Original assignee: Anqing Zhengbin Building Material Machinery Manufacturing Co Ltd
Current assignee: Anqing Zhengbin Building Material Machinery Manufacturing Co Ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-04-24
Anticipated expiration: 2029-08-14

Abstract

The utility model belongs to the technical field of the hydro-cylinder, especially, sealing device is used in hydro-cylinder concatenation, including last cylinder body and lower cylinder body, the surface of going up the cylinder body all is provided with fixed frame with the surface of lower cylinder body, the installation cavity has been seted up to the inside of fixed frame, the spout has been seted up to one side inner wall of installation cavity, the both ends inner wall of installation cavity all is provided with sealing device, sealing device includes the sealing washer, one side fixed surface of sealing washer is connected with the connecting plate, one side fixed surface of connecting plate is connected with first connecting block, one side fixed surface of first connecting block is connected with the second connecting block. This sealing device for hydro-cylinder concatenation has reached the effect of connecting and sealing up last cylinder body and lower cylinder body to solved current sealing device for hydro-cylinder can not be better seal the hydro-cylinder, because the great problem that can appear oil leak and pressure release of inside oil pressure in the use.

Description

Sealing device for splicing oil cylinders

Technical Field

The utility model relates to a hydro-cylinder technical field especially relates to a sealing device is used in hydro-cylinder concatenation.

Background

The hydraulic cylinder is a linear motion type executing element with output force in direct proportion to the effective area of the piston and the pressure difference between the two sides of the piston. Its function is to convert hydraulic energy into mechanical energy. The input of the hydraulic cylinder is the flow and pressure of the fluid, and the output is the linear motion speed and force. The piston of the hydraulic cylinder can complete linear reciprocating motion, and the output linear displacement is limited. The hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy of reciprocating linear motion. The hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. Buffer and exhaust apparatus are decided according to specific application occasion, and other devices are then indispensable, and the great hydro-cylinder of volume can design into the concatenation form when the design, and the centre uses sealing device to connect and seal, and current for the hydro-cylinder sealing device can not be better seal the hydro-cylinder, during the use, because the great problem that can appear oil leak and pressure release of inside oil pressure.

SUMMERY OF THE UTILITY MODEL

Based on current sealing device for the hydro-cylinder can not be better seal the hydro-cylinder, because the technical problem of oil leak and pressure release can appear in the great meeting of inside oil pressure in the use, the utility model provides a sealing device is used in hydro-cylinder concatenation.

The utility model provides a sealing device for splicing oil cylinders, which comprises an upper cylinder body and a lower cylinder body, wherein the outer surface of the upper cylinder body and the outer surface of the lower cylinder body are both provided with fixing frames, an installation cavity is arranged inside the fixing frames, the inner wall of one side of the installation cavity is provided with a chute, the inner walls of the two ends of the installation cavity are both provided with sealing devices, and each sealing device comprises a sealing ring;

the sealing ring is characterized in that a connecting plate is fixedly connected to the surface of one side of the sealing ring, a first connecting block is fixedly connected to the surface of one side of the connecting plate, and a second connecting block is fixedly connected to the surface of one side of the first connecting block.

Preferably, first connecting groove and second connecting groove have been seted up respectively to the both ends surface of sealing washer, go up the lower surface of cylinder body and peg graft with the inner wall activity of first connecting groove, the upper surface of lower cylinder body is pegged graft with the inner wall activity of second connecting groove.

Preferably, the two end surfaces of the second connecting block are respectively provided with a first clamping block and a second clamping block, and the lower surface of the first clamping block and the upper surface of the second clamping block are both in contact with the surface of the first connecting block.

Preferably, a control block is fixedly connected to one side surface of each of the first clamping block and the second clamping block, and threaded holes are formed in the upper surfaces of the two control blocks.

Preferably, the screwing directions of the two threaded holes are opposite, and the inner wall of each threaded hole is in threaded connection with a screw.

Preferably, the lower surface of the mounting cavity is provided with a first mounting opening, and the inner wall of the first mounting opening is fixedly connected with the outer surface of the screw rod through a rolling bearing.

Preferably, the second installing port has been seted up to the upper surface of installation cavity, the one end of second installing port runs through to the upper surface of fixed frame, the inner wall of second installing port passes through antifriction bearing and the outer fixed surface of screw rod upper end is connected, the last fixed surface of screw rod is connected with the carousel.

The utility model provides a beneficial effect does:

1. first spread groove and second spread groove have been seted up respectively through the both ends surface that sets up the sealing washer, go up the lower surface of cylinder body and peg graft with the inner wall activity of first spread groove, the upper surface of lower cylinder body is pegged graft with the inner wall activity of second spread groove, the effect of connecting and sealing to last cylinder body and lower cylinder body has been reached, thereby solved current sealing device for the hydro-cylinder can not be better seal the hydro-cylinder, because the great problem that can appear oil leak and pressure release of inside oil pressure in the use.

2. The two end surfaces of the second connecting block are respectively provided with the first clamping block and the second clamping block, the lower surface of the first clamping block and the upper surface of the second clamping block are both contacted with the surface of the first connecting block, the effect of facilitating the loading and unloading of the sealing ring is achieved, and the problem that the whole device is required to be replaced after the sealing ring is damaged so as to be used is solved.

3. The rotating directions of the two threaded holes are opposite, the inner wall threads of the threaded holes are connected with the threaded rods, the effect of controlling the reverse motion of the first clamping block and the second clamping block is achieved, and therefore the problem that the first clamping block and the second clamping block cannot reversely move simultaneously to loosen the sealing ring is solved.

Drawings

Fig. 1 is a schematic view of a sealing device for splicing oil cylinders provided by the utility model;

fig. 2 is a sectional view of a fixing frame structure of the sealing device for splicing the oil cylinders, which is provided by the utility model;

fig. 3 is an enlarged view of a structure at a position a in fig. 2 of the sealing device for splicing the oil cylinders, which is provided by the utility model;

fig. 4 is the utility model provides a B department's structure enlargements in fig. 2 of sealing device for hydro-cylinder concatenation.

In the figure: 1. an upper cylinder body; 2. a lower cylinder body; 3. a fixing frame; 4. a mounting cavity; 5. a sealing device; 51. a seal ring; 6. a connecting plate; 7. a first connection block; 8. a second connecting block; 9. a first connecting groove; 10. a second connecting groove; 11. a first clamping block; 12. a second clamping block; 13. a control block; 14. a threaded hole; 15. a screw; 16. a first mounting port; 17. a second mounting opening; 18. a turntable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a sealing device for splicing oil cylinders, as shown in fig. 1-3, comprises an upper cylinder body 1 and a lower cylinder body 2, wherein fixed frames 3 are respectively arranged on the outer surface of the upper cylinder body 1 and the outer surface of the lower cylinder body 2, an installation cavity 4 is formed inside the fixed frames 3, a sliding groove is formed in the inner wall of one side of the installation cavity 4, sealing devices 5 are respectively arranged on the inner walls of two ends of the installation cavity 4, and each sealing device 5 comprises a sealing ring 51;

as shown in fig. 2-3, the two end surfaces of the sealing ring 51 are respectively provided with a first connecting groove 9 and a second connecting groove 10, the lower surface of the upper cylinder 1 is movably inserted into the inner wall of the first connecting groove 9, and the upper surface of the lower cylinder 2 is movably inserted into the inner wall of the second connecting groove 10, so that the effect of connecting and sealing the upper cylinder 1 and the lower cylinder 2 is achieved, thereby solving the problem that the existing sealing device 5 for the oil cylinder cannot well seal the oil cylinder, and the problems of oil leakage and pressure release can occur due to large internal oil pressure in the use process, one side surface of the sealing ring 51 is fixedly connected with a connecting plate 6, one side surface of the connecting plate 6 is fixedly connected with a first connecting block 7, and one side surface of the first connecting block 7 is fixedly connected with a second connecting block 8;

as shown in fig. 3, the two end surfaces of the second connecting block 8 are respectively provided with a first clamping block 11 and a second clamping block 12, the lower surface of the first clamping block 11 and the upper surface of the second clamping block 12 are both contacted with the surface of the first connecting block 7, so that the effect of facilitating the assembly and disassembly of the sealing ring 51 is achieved, and the problem that the whole device is required to be replaced to be used after the sealing ring 51 is damaged is solved, one side surfaces of the first clamping block 11 and the second clamping block 12 are both fixedly connected with a control block 13, the upper surfaces of the two control blocks 13 are both provided with threaded holes 14, the rotation directions of the two threaded holes 14 are opposite, and the inner wall of the threaded hole 14 is in threaded connection with a screw;

as shown in fig. 3-4, the lower surface of the installation cavity 4 is provided with a first installation opening 16, the inner wall of the first installation opening 16 is fixedly connected with the outer surface of the screw rod 15 through a rolling bearing, the upper surface of the installation cavity 4 is provided with a second installation opening 17, one end of the second installation opening 17 penetrates through the upper surface of the fixed frame 3, the inner wall of the second installation opening 17 is fixedly connected with the outer surface of the upper end of the screw rod 15 through a rolling bearing, the upper surface of the screw rod 15 is fixedly connected with a turntable 18, the effect of controlling the reverse movement of the first clamping block 11 and the second clamping block 12 is achieved, and therefore the problem that the first clamping block 11 and the second clamping block 12 cannot reversely move to loosen the sealing ring 51 is solved.

The working principle is as follows: during the use, fixed frame 3 is fixed at the surface of last cylinder body 1 and lower cylinder body 2, put into first connecting groove 9 with the lower extreme of last cylinder body 1, put into second connecting groove 10 with the upper end of lower cylinder body 2, twist carousel 18 afterwards, control screw 15 is rotatory, screw 15 drives two control blocks 13 operations, two control blocks 13 drive first clamp piece 11 and the tight piece 12 of second clamp respectively and remove, press from both sides second connecting block 8 tightly, thereby fixed seal circle 51, after sealing washer 51 damages, carousel 18 is rotated, make first clamp piece 11 and the tight piece 12 of second clamp loosen second connecting block 8, can take off sealing washer 51 and change.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a sealing device is used in hydro-cylinder concatenation, includes cylinder body (1) and lower cylinder body (2), its characterized in that: both the outer surface of the upper cylinder body (1) and the outer surface of the lower cylinder body (2) are provided with fixed frames (3), an installation cavity (4) is formed inside each fixed frame (3), the inner wall of one side of the installation cavity (4) is provided with a sliding groove, the inner walls of two ends of the installation cavity (4) are provided with sealing devices (5), and each sealing device (5) comprises a sealing ring (51);

one side fixed surface of sealing washer (51) is connected with connecting plate (6), one side fixed surface of connecting plate (6) is connected with first connecting block (7), one side fixed surface of first connecting block (7) is connected with second connecting block (8).

2. The sealing device for splicing the oil cylinders according to claim 1, wherein: first connecting groove (9) and second connecting groove (10) have been seted up respectively to the both ends surface of sealing washer (51), go up the lower surface of cylinder body (1) and peg graft with the inner wall activity of first connecting groove (9), the upper surface of lower cylinder body (2) is pegged graft with the inner wall activity of second connecting groove (10).

3. The sealing device for splicing the oil cylinders according to claim 1, wherein: and the two end surfaces of the second connecting block (8) are respectively provided with a first clamping block (11) and a second clamping block (12), and the lower surface of the first clamping block (11) and the upper surface of the second clamping block (12) are in contact with the surface of the first connecting block (7).

4. The sealing device for splicing the oil cylinders as claimed in claim 3, wherein: the clamping device is characterized in that a control block (13) is fixedly connected to one side surface of each of the first clamping block (11) and the second clamping block (12), and threaded holes (14) are formed in the upper surfaces of the two control blocks (13).

5. The sealing device for splicing the oil cylinders as claimed in claim 4, wherein: the rotating directions of the two threaded holes (14) are opposite, and the inner wall of each threaded hole (14) is in threaded connection with a screw (15).

6. The sealing device for splicing the oil cylinders according to claim 5, wherein: a first mounting opening (16) is formed in the lower surface of the mounting cavity (4), and the inner wall of the first mounting opening (16) is fixedly connected with the outer surface of the screw rod (15) through a rolling bearing.

7. The sealing device for splicing the oil cylinders according to claim 5, wherein: second installing port (17) have been seted up to the upper surface of installation cavity (4), the one end of second installing port (17) runs through to the upper surface of fixed frame (3), the outer fixed surface who passes through antifriction bearing and screw rod (15) upper end of inner wall of second installing port (17) is connected, the upper surface fixed connection of screw rod (15) has carousel (18).