CN210949352U

CN210949352U - Hydraulic oil cylinder

Info

Publication number: CN210949352U
Application number: CN201921900455.3U
Authority: CN
Inventors: 倪洪贵
Original assignee: Ruian Shengding Auto Parts Co ltd
Current assignee: Ruian Shengding Auto Parts Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-07-07
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a hydraulic cylinder, including cylinder body, fixed block, spacing pipe and bayonet joint, the inside of cylinder body runs through and installs the telescopic link, the spacing groove has been seted up on the fixed block top, spacing the installing of spacing inslot has the rubber pad, the apron has been put to spacing inslot position rubber pad top lid, a side surface of cylinder body is equipped with the bayonet joint, be equipped with the connecting rod in the spacing pipe, the one end welding that the connecting rod deviates from spacing pipe has the joint board, the spring has been cup jointed in the spacing intraductal connecting rod outside, the bayonet joint deviates from cylinder body one end and has cup jointed the joint head, the joint head outside surface is equipped with the fixture block, one side that the joint head deviates from the bayonet joint rotates through the bearing and is connected with the screwed pipe, the one end that the screwed pipe. The utility model discloses possess and can prevent that small granule from making the piston rod galling on adhering to the piston rod, excessive wearing and tearing, deformation, oil leak, and can prevent that small granule from damaging the advantage of the sealed effect of dust ring.

Description

Hydraulic oil cylinder

Technical Field

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

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. However, in the long-term use of the hydraulic cylinder, some tiny particles can damage the sealing effect of the dust ring, enter the protective cover and attach to the piston rod, so that the piston rod can be galling, excessively worn, deformed and leaked oil under the condition of severe external environment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hydraulic cylinder, possess and can prevent that small granule from making the piston rod napping on attaching to the piston rod, excessive wearing and tearing, warp, the oil leak, and can prevent that small granule from damaging the advantage of the sealed effect of dust ring, solved the pneumatic cylinder in long-term use, some small granules can damage the sealed effect of dust ring, get into in the safety cover, attach to the piston rod, under the more abominable condition of external environment, can make the piston rod napping, excessive wearing and tearing, warp, the problem of oil leak.

In order to achieve the above object, the utility model provides a following technical scheme: a hydraulic cylinder comprises a cylinder body, a fixing block, a limiting pipe and a plug connector, wherein a telescopic rod is installed inside the cylinder body in a penetrating mode, the top of the cylinder body is provided with the fixing block close to the telescopic rod, the top end of the fixing block is provided with a limiting groove, a rubber pad is installed in the limiting groove in a limiting mode, a cover plate covers the limiting groove and is located above the rubber pad, the plug connector is arranged on one side surface of the cylinder body, the limiting pipe is located on the lower portion of the plug connector on one side surface of the cylinder body, a connecting rod is arranged in the limiting pipe, a clamping plate is welded to one end, away from the limiting pipe, of the connecting rod, a spring is sleeved on the outer side, located in the limiting pipe, of the connecting rod, a clamping connector is sleeved on one end, away from the cylinder body, a clamping block is, and a guide pipe is arranged at one end of the threaded pipe, which is far away from the clamping joint.

Preferably, the bottom surface of the limiting groove is provided with a threaded hole, the cover plate and the rubber pad are provided with through holes corresponding to the threaded hole, and the cover plate and the rubber pad are limited and fixed in the limiting groove through screws and the threaded hole.

Preferably, the clamping plate is provided with a groove, and the radius of the groove is larger than that of the clamping head.

Preferably, the one end that the connecting rod deviates from the joint board is equipped with the baffle, the spring passes through the spacing installation of baffle in spacing intraductal.

Preferably, the clamping blocks are provided with two clamping blocks, and the two clamping blocks are symmetrically distributed on the surfaces of the two sides of the clamping head.

Preferably, the inner side surface of the threaded pipe and the outer side surface of the plug are provided with matched threads.

Preferably, the conduit is communicated with the plug connector through a clamping connector and a threaded pipe.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses a set up the rubber pad, reached the inside through-hole of seting up with telescopic link looks adaptation of rubber pad, the rubber pad cup joints in the telescopic link outside through the through-hole, and the rubber pad hugs closely the telescopic link, can block the effect in the rubber pad outside with adnexed small granule on the telescopic link to prevent that small granule from making the piston rod galling on attaching to the piston rod, excessive wearing and tearing, deformation, oil leak, and can prevent that small granule from damaging the sealed effect of dust ring in getting into the sealing washer.

Drawings

Fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is an enlarged schematic view of the utility model at a in fig. 1;

fig. 3 is an enlarged schematic view of the position B in fig. 1 according to the present invention.

In the figure: 1. a cylinder body; 2. a telescopic rod; 3. a fixed block; 4. a cover plate; 5. a rubber pad; 6. a threaded hole; 7. a limiting groove; 8. a screw; 9. a spring; 10. a connecting rod; 11. a limiting pipe; 12. a clamping and connecting plate; 13. a clamping head; 14. a conduit; 15. a threaded pipe; 16. a clamping block; 17. a plug-in connector.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" 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 simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, the present invention provides an embodiment: a hydraulic cylinder comprises a cylinder body 1, a fixed block 3, a limiting pipe 11 and a plug-in connector 17, wherein a telescopic rod 2 is installed inside the cylinder body 1 in a penetrating mode, the top of the cylinder body 1 is provided with the fixed block 3 close to the telescopic rod 2, the fixed block 3 is used for limiting and fixing a rubber pad 5, the top end of the fixed block 3 is provided with a limiting groove 7, the rubber pad 5 is installed in the limiting groove 7 in a limiting mode, through the arrangement of the rubber pad 5, the effect that through holes matched with the telescopic rod 2 are formed in the rubber pad 5 is achieved, the rubber pad 5 is sleeved outside the telescopic rod 2 through the through holes, the rubber pad 5 is tightly attached to the telescopic rod 2, and tiny particles attached to the telescopic rod 2 can be blocked outside the rubber pad 5 is achieved, so that the piston rod is prevented from being scratched, excessive abrasion, deformation and oil leakage are prevented, the cover plate 4 is arranged above the rubber pad 5 in the limiting groove 7 in a covering mode, the cover plate 4 is used for clamping and fixing the rubber pad 5, the threaded hole 6 is formed in the bottom surface of the limiting groove 7, the cover plate 4 and the rubber pad 5 are conveniently fixed in the limiting groove 7, through holes are formed in the positions, corresponding to the threaded hole 6, of the cover plate 4 and the rubber pad 5, and the cover plate 4 and the rubber pad 5 are fixed in the limiting groove 7 in a limiting mode through screws 8 and the threaded hole 6 in a limiting mode in.

The cylinder body 1 is provided with a plug-in connector 17 on one side surface for plugging an oil pipe, a limit pipe 11 is arranged on one side surface of the cylinder body 1 below the plug-in connector 17, a connecting rod 10 is arranged in the limit pipe 11, a baffle is arranged at one end of the connecting rod 10 departing from the clamping plate 12, a spring 9 is installed in the limit pipe 11 in a limiting way through the baffle, the clamping plate 12 is welded at one end of the connecting rod 10 departing from the limit pipe 11, the clamping connector 13 for being plugged with the plug-in connector 17 is clamped on the plug-in connector 17 through the spring 9 for fixing conveniently, a groove is formed in the clamping plate 12, the radius of the groove is larger than that of the clamping connector 13, the clamping connector 13 is placed on the clamping plate 12 conveniently, the spring 9 is sleeved on the outer side of the connecting rod 10 in the limit pipe 11, the clamping connector 13 is sleeved at one end of the plug-in connector 17 departing, and two clamping blocks 16 are symmetrically distributed on the surfaces of two sides of the clamping joint 13, one side of the clamping joint 13 departing from the plug-in joint 17 is rotatably connected with a threaded pipe 15 through a bearing, the inner side surface of the threaded pipe 15 and the outer side surface of the plug-in joint 17 are provided with matched threads, one end of the threaded pipe 15 departing from the clamping joint 13 is provided with a guide pipe 14, and the guide pipe 14 is communicated with the plug-in joint 17 through the clamping joint 13 and the threaded pipe 15.

When the cylinder body is used, a user detaches the cover plate 4 in the fixed block 3, a through hole matched with the telescopic rod 2 is formed in the rubber pad 5, the rubber pad 5 is sleeved outside the telescopic rod 2 through the through hole, the rubber pad 5 is sleeved in the limiting groove 7 from the telescopic rod 2 and tightly attached to the telescopic rod 2, the effect that tiny particles attached to the telescopic rod 2 can be blocked outside the rubber pad 5 is achieved, the situation that the tiny particles are attached to the piston rod to enable the piston rod to be napped, excessively worn, deformed and leaked is prevented, the tiny particles can be prevented from entering the sealing ring to damage the sealing effect of the dust ring, then the cover plate 4 is clamped and fixed through the cover plate 4, the cover plate 4 and the rubber pad 5 are fixed in the limiting groove 7 through the screw 8, the limiting pipe 11 is arranged on one side of the cylinder body 1, the spring 9 and the connecting rod 10 are arranged in, the clamping joint 13 used for being in limited clamping connection with the plug-in joint 17 is clamped on the plug-in joint 17 through the spring 9, so that the clamping joint 13 and the plug-in joint 17 are fixed through threads through the threaded pipe 15 and the plug-in joint 17 after being clamped.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a hydraulic cylinder, includes cylinder body (1), fixed block (3), spacing pipe (11) and bayonet joint (17), its characterized in that: the cylinder body (1) is internally provided with a telescopic rod (2) in a penetrating manner, a fixed block (3) is arranged at the top of the cylinder body (1) close to the telescopic rod (2), a limiting groove (7) is formed in the top end of the fixed block (3), a rubber pad (5) is installed in the limiting groove (7) in a limiting manner, a cover plate (4) is covered above the rubber pad (5) in the limiting groove (7), a plug-in connector (17) is arranged on the surface of one side of the cylinder body (1), a limiting pipe (11) is arranged below the plug-in connector (17) on the surface of one side of the cylinder body (1), a connecting rod (10) is arranged in the limiting pipe (11), a clamping plate (12) is welded at one end of the connecting rod (10) deviating from the limiting pipe (11), a spring (9) is sleeved on the outer side of the connecting rod (10) in the limiting pipe (11), and a clamping connector (13) is sleeved at, the outer side surface of the clamping joint (13) is provided with a clamping block (16), one side, deviating from the plug-in connector (17), of the clamping joint (13) is rotatably connected with a threaded pipe (15) through a bearing, and one end, deviating from the clamping joint (13), of the threaded pipe (15) is provided with a guide pipe (14).

2. A hydraulic cylinder as claimed in claim 1, characterized by: the bottom surface of the limiting groove (7) is provided with a threaded hole (6), through holes are formed in the positions, corresponding to the threaded hole (6), of the cover plate (4) and the rubber pad (5), and the cover plate (4) and the rubber pad (5) are fixed in the limiting groove (7) in a limiting mode through screws (8) and the threaded hole (6).

3. A hydraulic cylinder as claimed in claim 1, characterized by: the clamping and connecting plate (12) is provided with a groove, and the radius of the groove is larger than that of the clamping joint (13).

4. A hydraulic cylinder as claimed in claim 1, characterized by: the connecting rod (10) deviates from one end of the clamping plate (12) and is provided with a baffle, and the spring (9) is installed in the limiting pipe (11) in a limiting mode through the baffle in a limiting mode.

5. A hydraulic cylinder as claimed in claim 1, characterized by: the clamping head is characterized in that the clamping blocks (16) are arranged in two, and the two clamping blocks (16) are symmetrically distributed on the surfaces of the two sides of the clamping head (13).

6. A hydraulic cylinder as claimed in claim 1, characterized by: the inner side surface of the threaded pipe (15) and the outer side surface of the plug connector (17) are provided with matched threads.

7. A hydraulic cylinder as claimed in claim 1, characterized by: the conduit (14) is communicated with the plug connector (17) through the clamping connector (13) and the threaded pipe (15).