CN219388296U - Protection device of hydraulic cylinder - Google Patents

Abstract

The utility model relates to the technical field of hydraulic cylinders, in particular to a protection device of a hydraulic cylinder, which comprises a cylinder barrel and a piston rod arranged in the cylinder barrel, wherein a connecting ring is attached to the upper end of the cylinder barrel, a fixing assembly is arranged between the connecting ring and the cylinder barrel, and the upper end of the connecting ring is fixedly connected with a telescopic protection sleeve, and the protection device has the beneficial effects that: through adapter ring, fixed subassembly, telescopic lag, first arc, second arc, U type piece, U-shaped piece, screw and bolt mutually support, telescopic lag can be simple and convenient install in hydraulic cylinder's upper end, and telescopic lag's upper portion edge can tighten up at the outer wall upper portion edge of piston rod, hydraulic cylinder during operation, the piston rod can outwards extend in the cylinder, telescopic lag can be stretched the extension, telescopic lag can protect the piston rod along with the extension of piston rod always, avoids the piston rod surface adhesion to have dust or dust to influence hydraulic cylinder's normal use.

Description

Protection device of hydraulic cylinder

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to a protection device of a hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion), and basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device;

the use environment of hydraulic cylinder is various complicacy, when the hydraulic cylinder has many dust or the environment that many dust fly away in the air uses down, the piston rod of hydraulic cylinder is at the in-process that stretches out, dust or dust in the air can adhere on the outer wall of piston rod, dust or dust's adhesion can increase the surface roughness of piston rod to increase the frictional force between piston rod and the sealing member, lead to leaking and energy loss increase, dust or dust on piston rod surface can bring wearing and tearing and damage for the hydraulic cylinder sealing member, lead to leaking and hydraulic cylinder performance decline, influence the normal use of hydraulic cylinder, for this reason, we propose a hydraulic cylinder's protection device.

Disclosure of Invention

The utility model aims to provide a protection device for a hydraulic cylinder, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a protection device of hydraulic cylinder, includes the cylinder and installs the inside piston rod at the cylinder, the laminating of upper end of cylinder has the go-between, be equipped with fixed subassembly between go-between and the cylinder, and the upper end fixedly connected with telescopic protection cover of go-between, the front and back of the surface upper portion edge of telescopic protection cover is first arc of fixedly connected with and second arc respectively, the equal fixedly connected with U-shaped piece of outer wall both sides edge of first arc, the equal fixedly connected with U-shaped piece of outer wall both sides edge of second arc, two the screw has all been seted up to the rear end of U-shaped piece, two the inner wall of U-shaped piece all runs through and screws have the bolt, two the bolt corresponds with two screws respectively.

Preferably, the fixed subassembly includes four L type pieces, four the one end of L type piece is around the central annular array fixed connection of go-between on the outer wall of go-between, and the perpendicular wall lower part edge of four L type pieces all runs through and screws has the double-screw bolt, four the one end of double-screw bolt is all closely laminated on the outer wall upper portion edge of cylinder, and the other end of four double-screw bolts all is connected with the rotating member.

Preferably, the rotating member comprises a rotating block fixedly connected to the end of the stud, and the outer wall of the rotating block is provided with a plurality of anti-skid grooves around the central annular array thereof.

Preferably, four L-shaped blocks and the connecting ring are in an integrated structure.

Preferably, an integrated structure is formed between the first arc-shaped plate and the two U-shaped blocks, and an integrated structure is formed between the second arc-shaped plate and the two U-shaped blocks.

Preferably, the telescopic protective sleeve is made of rubber material.

Compared with the prior art, the utility model has the beneficial effects that: through adapter ring, fixed subassembly, telescopic lag, first arc, second arc, U type piece, U-shaped piece, screw and bolt mutually support, telescopic lag can be simple and convenient install in hydraulic cylinder's upper end, and telescopic lag's upper portion edge can tighten up at the outer wall upper portion edge of piston rod, hydraulic cylinder during operation, the piston rod can outwards extend in the cylinder, telescopic lag can be stretched the extension, telescopic lag can protect the piston rod along with the extension of piston rod always, avoids the piston rod surface adhesion to have dust or dust to influence hydraulic cylinder's normal use.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a split view of the present utility model;

FIG. 3 is a partial cross-sectional view of the present utility model;

fig. 4 is an illustration of a first arcuate plate, a U-shaped block and a screw hole of the present utility model.

In the drawings, the list of components represented by the various numbers is as follows: 1. a cylinder; 2. a connecting ring; 3. a telescopic protective sleeve; 4. a piston rod; 5. an L-shaped block; 6. a rotating block; 7. a second arcuate plate; 8. a first arcuate plate; 9. a U-shaped block; 10. a U-shaped block; 11. a bolt; 12. an anti-skid groove; 13. a stud; 14. screw holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-4, a protection device for a hydraulic cylinder in the illustration includes a cylinder 1 and a piston rod 4 installed inside the cylinder 1, a connecting ring 2 is attached to the upper end of the cylinder 1, a fixing component is disposed between the connecting ring 2 and the cylinder 1, a telescopic protection sleeve 3 is fixedly connected to the upper end of the connecting ring 2, a first arc plate 8 and a second arc plate 7 are fixedly connected to the front and rear parts of the upper edge of the outer surface of the telescopic protection sleeve 3, U-shaped blocks 9 are fixedly connected to the edges of two sides of the outer wall of the first arc plate 8, U-shaped blocks 10 are fixedly connected to the edges of two sides of the outer wall of the second arc plate 7, screw holes 14 are formed in the rear ends of the two U-shaped blocks 9, bolts 11 are fixedly screwed through the inner walls of the two U-shaped blocks 10, and the two bolts 11 correspond to the two screw holes 14.

Referring to fig. 1-3, the fixing assembly in the drawings includes four L-shaped blocks 5, one ends of the four L-shaped blocks 5 are fixedly connected to the outer wall of the connecting ring 2 around the central annular array of the connecting ring 2, the lower edges of the vertical walls of the four L-shaped blocks 5 are all penetrated and screwed with studs 13, one ends of the four studs 13 are tightly attached to the upper edge of the outer wall of the cylinder 1, and the other ends of the four studs 13 are all connected with rotating members.

Referring to fig. 2 and 3, the rotating member includes a rotating block 6, the rotating block 6 is fixedly connected to an end of a stud 13, and a plurality of anti-slip grooves 12 are formed on an outer wall of the rotating block 6 around a central annular array thereof.

Referring to fig. 1-3, the telescopic protective sheath 3 is shown to be made of a rubber material; the telescopic protective sleeve 3 made of rubber material has good ductility.

In this embodiment, when the hydraulic cylinder is used in a dusty environment, the telescopic protective sleeve 3 is fixed outside the piston rod 4, and the specific operation flow is as follows:

firstly, pass the piston rod 4 with go up the link ring 2 and laminate to the upper end of cylinder 1, make the border of link ring 2 align with the border of cylinder 1 afterwards, press down the link ring 2, rotatory four rotatory pieces 6 in proper order, make the double-screw bolt 13 on four rotatory pieces 6 rotate to cylinder 1 direction in the inner wall of L type piece 5, until the one end of double-screw bolt 13 closely laminates on the outer wall of cylinder 1, the setting of rotatory piece 6 outer antiskid groove 12 can play the antiskid effect when rotating rotatory piece 6, under the effect of four double-screw bolts 13, the link ring 2 then can firmly fix in the upper end of cylinder 1, the telescopic lag 3 of link ring 2 upper end can overlap in the outside of piston rod 4 at this moment, then hold first arc 8 and second arc 7 and remove together to the outer wall of piston rod 4, make first arc 8 and second arc 7 drive telescopic lag 3's upper portion edge part hug closely in the outer wall upper portion edge department of cylinder 4, then rotate 11 in two U-shaped pieces 10 respectively and insert to two U-shaped piece 9 when rotating rotatory piece 6, can be fixed at the outer wall 4 of cylinder 4 at the same time, can be at the extension of the outer diameter of piston rod 4 is stretched out and can be guaranteed at the piston rod 4 with the extension of piston rod 4, the extension can be carried out the extension of piston rod 4 with the extension 4, the extension of piston rod 4 is more than normal, the extension 4 can be guaranteed.

Example 2

Referring to fig. 2 and 3, in this embodiment, for further description of example 1, four L-shaped blocks 5 and a connecting ring 2 are integrally formed; the stability between the four L-shaped blocks 5 and the connecting ring 2 is good.

Referring to fig. 1-4, in the drawings, a first arc plate 8 and two U-shaped blocks 9 are integrally formed, and a second arc plate 7 and two U-shaped blocks 10 are integrally formed; the stability between the first arc-shaped plate 8 and the two U-shaped blocks 9 is good; the stability between the second arc 7 and the two U-shaped blocks 10 is good.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims (6)

1. The utility model provides a protection device of hydraulic cylinder, includes cylinder (1) and installs inside piston rod (4) of cylinder (1), its characterized in that: the cylinder barrel (1) is characterized in that a connecting ring (2) is attached to the upper end of the cylinder barrel (1), a fixing assembly is arranged between the connecting ring (2) and the cylinder barrel (1), a telescopic protective sleeve (3) is fixedly connected to the upper end of the connecting ring (2), a first arc plate (8) and a second arc plate (7) are fixedly connected to the front part and the rear part of the edge of the upper part of the outer surface of the telescopic protective sleeve (3), U-shaped blocks (9) are fixedly connected to the edge of the two sides of the outer wall of the first arc plate (8), U-shaped blocks (10) are fixedly connected to the edge of the two sides of the outer wall of the second arc plate (7), screw holes (14) are formed in the rear end of each U-shaped block (9), bolts (11) are fixedly screwed through the inner walls of the U-shaped blocks (10), and the two bolts (11) correspond to the two screw holes (14) respectively.

2. The hydraulic cylinder protection device according to claim 1, wherein: the fixing assembly comprises four L-shaped blocks (5), one ends of the four L-shaped blocks (5) are fixedly connected to the outer wall of the connecting ring (2) around the central annular array of the connecting ring (2), the studs (13) are tightly screwed on the edges of the lower portions of the vertical walls of the four L-shaped blocks (5), one ends of the four studs (13) are tightly attached to the edge of the upper portion of the outer wall of the cylinder barrel (1), and rotating parts are connected to the other ends of the four studs (13).

3. The hydraulic cylinder protection device according to claim 2, wherein: the rotating piece comprises a rotating block (6), the rotating block (6) is fixedly connected to the end portion of the stud (13), and a plurality of anti-slip grooves (12) are formed in the outer wall of the rotating block (6) around the central annular array of the rotating block.

4. The hydraulic cylinder protection device according to claim 2, wherein: the four L-shaped blocks (5) and the connecting ring (2) are of an integrated structure.

5. The hydraulic cylinder protection device according to claim 1, wherein: the first arc-shaped plate (8) and the two U-shaped blocks (9) are of an integrated structure, and the second arc-shaped plate (7) and the two U-shaped blocks (10) are of an integrated structure.

6. The hydraulic cylinder protection device according to claim 1, wherein: the telescopic protective sleeve (3) is made of rubber materials.