CN210218297U - Combined hydraulic oil cylinder - Google Patents

Abstract

The utility model discloses a modular hydraulic cylinder, one of cylinder body serves sealing weld has the entrance point, the joint has the alloy connector in the entrance point, through gland fixed connection between alloy connector and the entrance point, the inside of the cylinder body that the alloy connector corresponds is equipped with the through-hole, on the body including the through-hole sets up, interior body gomphosis is in the inside of cylinder body, one side that interior body is close to the cylinder body port is equipped with the piston head, sliding connection between the inner wall of piston head and cylinder body, the one end that interior body was kept away from to the piston head has the welded plate through the welding bolt welding, and weld between welded bolt and the welded plate, one side center department that the welded bolt was kept away from to the welded plate is equipped with the nipple perpendicularly, threaded connection has piston thread head on the nipple, sliding connection between the inner: the utility model discloses novel structure, convenient to use is a novel and practical combination formula hydraulic cylinder.

Description

Combined hydraulic oil cylinder

Technical Field

The utility model relates to a hydraulic cylinder technical field specifically is a modular hydraulic cylinder.

Background

Among the prior art, hydraulic cylinder comprises parts such as cylinder body, piston rod mostly, and the mechanism of part is big, and the mode of connection is too deadly, and is very inconvenient during the change, in case the part goes wrong, and the cost of change is also very big, has a great deal of inconvenience, so the utility model provides a modular hydraulic cylinder solves above-mentioned problem.

Disclosure of Invention

An object of the utility model is to provide a modular hydraulic cylinder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a combined hydraulic oil cylinder comprises a cylinder body, one end of the cylinder body is hermetically welded with an inlet end, an alloy connector is clamped in the inlet end, the alloy connector and the inlet end are fixedly connected through a gland, a through hole is formed in the inside of the cylinder body corresponding to the alloy connector, the through hole is formed in an inner tube body, the inner tube body is embedded in the cylinder body, a piston head is arranged on one side, close to a cylinder body port, of the inner tube body, the piston head is in sliding connection with the inner wall of the cylinder body, one end, far away from the inner tube body, of the piston head is welded with a welding plate through a welding bolt, the welding bolt and the welding plate are welded with each other, a threaded head is vertically arranged at the center of one side, far away from the welding bolt, of the welding plate, a piston threaded head is in threaded connection with a piston threaded head, the piston threaded head is in sliding connection with the inner wall of, the welding ring is welded at one end of the piston rod, an internal thread is arranged inside one end, close to the welding ring, of the piston rod, and the internal thread is in threaded connection with the thread head.

Preferably, sliding connection has sealed the pad on the piston rod, sealed pad joint is on the inboard of closing cap, the closing cap is connected with the cylinder body through a plurality of connecting bolts, the centre gripping has the sealing ring between closing cap and the cylinder body.

Preferably, one of the piston rod that keeps away from the screw thread head is served and is welded the threaded connection head, the inside limiting plate that is equipped with of threaded connection head, the vertical welding has the end pole on the limiting plate.

Preferably, the threaded connection of threaded connection head has the tubular bolt, the limiting plate centre gripping is between threaded connection head and tubular bolt.

Preferably, one end of the end rod, which is far away from the limiting plate, penetrates through the tubular bolt to be connected with a first connecting ring.

Preferably, one end of the cylinder body, which is far away from the sealing cover, is provided with a second connecting ring.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a piston head and piston thread head do the utility model provides a dual seal structure, this design makes the utility model discloses the problem of oil leak can not appear easily at the in-process that uses to the connection structure setting of piston rod also makes when connecting firmly between two piston heads in the design between piston head and the piston thread head, and the fixed mode of piston rod is inseparabler, and the utility model discloses a design of the connected mode of closing cap makes the piston rod can not drop easily, in addition, the utility model discloses an inner tube body is used to carry on spacingly to the piston head, avoids its jam alloy connector, appears the condition that the oil circuit is different, and the design of two go-between also makes the utility model discloses convenient connection, the utility model discloses novel structure, convenient to use is a novel and practical combination formula hydraulic cylinder.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the piston rod structure of the present invention;

fig. 3 is a schematic diagram of the piston head structure of the present invention.

In the figure: 1. a cylinder body; 2. an inlet end; 3. an alloy connector; 4. a gland; 5. a through hole; 6. an inner tube body; 7. a piston head; 8. welding a bolt; 9. welding the plate; 10. a screw head; 11. a piston thread start; 12. welding a ring; 13. an internal thread; 14. a piston rod; 15. a gasket; 16. sealing the cover; 17. a connecting bolt; 18. a seal ring; 19. a threaded connector; 20. a limiting plate; 21. an end rod; 22. a tubular bolt; 23. a first connecting ring; 24. and a second connecting ring.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a combined hydraulic oil cylinder comprises a cylinder body 1, one end of the cylinder body 1 is hermetically welded with an inlet end 2, an alloy connector 3 is clamped in the inlet end 2, the alloy connector 3 and the inlet end 2 are fixedly connected through a gland 4, a through hole 5 is formed in the cylinder body 1 corresponding to the alloy connector 3, the through hole 5 is formed in an inner pipe body 6, the inner pipe body 6 is embedded in the cylinder body 1, a piston head 7 is arranged on one side, close to a port of the cylinder body 1, of the inner pipe body 6, the piston head 7 is in sliding connection with the inner wall of the cylinder body 1, one end, far away from the inner pipe body 6, of the piston head 7 is welded with a welding plate 9 through the welding bolt 8, the welding bolt 8 is welded with the welding plate 9, a threaded head 10 is vertically arranged at the center of one side, far away from the welding bolt 8, of the welding plate 9 is in threaded connection with a, the threaded head 10 of the piston threaded head 11, which is far away from one side of the welding bolt 8, is connected with a welding ring 12 in a threaded manner, the welding ring 12 is welded at one end of a piston rod 14, an internal thread 13 is arranged inside one end, which is close to the welding ring 12, of the piston rod 14, and the internal thread 13 is connected with the threaded head 10 in a threaded manner.

The piston rod 14 is connected with a sealing gasket 15 in a sliding way, the sealing gasket 15 is clamped on the inner side of a sealing cover 16, the sealing cover 16 is connected with the cylinder body 1 through a plurality of connecting bolts 17, and a sealing ring 18 is clamped between the sealing cover 16 and the cylinder body 1.

The end, far away from the screw head 10, of the piston rod 14 is welded with a threaded connector 19, a limiting plate 20 is arranged inside the threaded connector 19, and a head rod 21 is perpendicularly welded on the limiting plate 20.

The threaded connector 19 is threadedly connected with a tubular bolt 22, and the limit plate 20 is clamped between the threaded connector 19 and the tubular bolt 22. The end of the end rod 21 far away from the limit plate 20 is connected with a first connecting ring 23 through a tubular bolt 22. The end of the cylinder body 1 far away from the sealing cover 16 is provided with a second connecting ring 24.

When in use, the piston head 7 and the piston thread head 11 designed by the utility model provide a double sealing structure for the utility model, the design ensures that the problem of oil leakage can not easily occur in the using process of the utility model, and the design that the connecting structure of the piston rod 14 is arranged between the piston head 7 and the piston thread head 11 ensures that the connection between the two piston heads is stable, at the same time, the fixing mode of the piston rod 14 is tighter, the design of the connection mode of the sealing cover 16 designed by the utility model ensures that the piston rod 14 can not easily fall off, in addition, the inner tube body 6 designed by the utility model limits the position of the piston head 7 to avoid the blockage of the alloy connector 3 and the occurrence of different oil paths, the design of two go-between also makes the utility model discloses conveniently connect, the utility model discloses novel structure, convenient to use is a novel and practical combination formula hydraulic cylinder.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A modular hydraulic cylinder which characterized in that: including cylinder body (1), one of cylinder body (1) serves seal welding and has entrance point (2), joint has alloy connector (3) in entrance point (2), pass through gland (4) fixed connection between alloy connector (3) and entrance point (2), the inside of cylinder body (1) that alloy connector (3) correspond is equipped with through-hole (5), body (6) including through-hole (5) set up, interior body (6) gomphosis is in the inside of cylinder body (1), one side that interior body (6) is close to cylinder body (1) port is equipped with piston head (7), sliding connection between the inner wall of piston head (7) and cylinder body (1), the one end that interior body (6) was kept away from in piston head (7) has welding plate (9) through welding bolt (8) welding, just weld between welding bolt (8) and welding plate (9), welding plate (9) are kept away from one side center department of welding bolt (8) and are equipped with screw thread head (10) perpendicularly, threaded connection has piston thread head (11) on screw thread head (10), sliding connection between the inner wall of piston thread head (11) and cylinder body (1), threaded connection has welding ring (12) on screw thread head (10) of welding bolt (8) one side is kept away from in piston thread head (11), welding ring (12) are welded on one end of piston rod (14), piston rod (14) are close to the inside internal thread (13) that is equipped with of one end of welding ring (12), threaded connection between internal thread (13) and screw thread head (10).

2. A combined hydraulic ram according to claim 1 wherein: sliding connection has sealed the pad (15) on piston rod (14), sealed pad (15) joint is on the inboard of closing cap (16), closing cap (16) are connected with cylinder body (1) through a plurality of connecting bolt (17), the centre gripping has sealing ring (18) between closing cap (16) and cylinder body (1).

3. A combined hydraulic ram according to claim 1 wherein: one of the piston rod (14) far away from the screw head (10) is welded with a screw connector (19), the inside limiting plate (20) that is equipped with of screw connector (19), the vertical welding is equipped with end rod (21) on limiting plate (20).

4. A combined hydraulic ram according to claim 3 wherein: the threaded connection of threaded connection head (19) has tubular bolt (22), limiting plate (20) centre gripping is between threaded connection head (19) and tubular bolt (22).

5. A combined hydraulic ram according to claim 3 wherein: one end of the end rod (21) far away from the limiting plate (20) penetrates through the tubular bolt (22) to be connected with a first connecting ring (23).

6. A combined hydraulic ram according to claim 2 wherein: and a second connecting ring (24) is arranged at one end of the cylinder body (1) far away from the sealing cover (16).

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