CN217271133U

CN217271133U - Hydraulic oil cylinder with built-in hydraulic lock

Info

Publication number: CN217271133U
Application number: CN202220683915.7U
Authority: CN
Inventors: 刘晓晨; 廉丽娜
Original assignee: Luoyang Botong Hydraulic Machinery Co Ltd
Current assignee: Luoyang Botong Hydraulic Machinery Co Ltd
Priority date: 2022-03-26
Filing date: 2022-03-26
Publication date: 2022-08-23
Anticipated expiration: 2032-03-26

Abstract

The application relates to the technical field of hydraulic devices, specifically is a built-in hydraulic lock hydraulic cylinder, includes: cylinder body, piston slide, ejector pin, mounting groove, coil spring, movable block, draw-in groove, spacing arch and lead the oilhole, swing joint has piston slide in the cylinder body, piston slide's right side fixedly connected with ejector pin, the mounting groove symmetry is seted up on piston slide, the mounting groove inboard is connected with coil spring on the surface, coil spring's tip fixedly connected with movable block, respectively the spacing arch of fixedly connected with on the movable block, the border position of movable block contacts with the surface of mounting groove respectively, the draw-in groove equidistance is seted up on the inner wall of cylinder body, spacing arch is connected with the draw-in groove cooperation that corresponds the position respectively, lead the oilhole and set up on piston slide left side border position on the surface, this application has simple to operate, and it is few to occupy the space, the high effect of locking stability.

Description

Hydraulic oil cylinder with built-in hydraulic lock

Technical Field

The application relates to the technical field of hydraulic devices, in particular to a hydraulic oil cylinder with a built-in hydraulic lock.

Background

Hydraulic cylinder is comparatively common in life production to object when still being equipped with the hydraulic pressure lock and preventing sudden pressure release falls in the great pneumatic cylinder of some loads, but current hydraulic pressure lock is mostly external, can occupy certain space after the installation, and is convenient inadequately.

Disclosure of Invention

The hydraulic cylinder is convenient to install, small in occupied space and high in stability.

The above application purpose of the present application is achieved by the following technical solutions:

a built-in hydraulic lock hydraulic ram comprising: cylinder body, piston slide, ejector pin, mounting groove, coil spring, movable block, draw-in groove, spacing arch and lead the oilhole, swing joint has piston slide in the cylinder body, piston slide's right side fixedly connected with ejector pin, the mounting groove symmetry is seted up on piston slide, the mounting groove inboard is connected with coil spring on the surface, coil spring's tip fixedly connected with movable block, respectively the spacing arch of fixedly connected with on the movable block, the border position of movable block contacts with the surface of mounting groove respectively, the draw-in groove equidistance is seted up on the inner wall of cylinder body, spacing arch is connected with the draw-in groove cooperation that corresponds the position respectively, lead the oilhole and set up on piston slide left side border position on the surface, it link up with the mounting groove mutually to lead the oilhole.

Optionally, the mounting groove is provided with a mounting groove, and the mounting groove is provided with a mounting hole.

Optionally, the cylinder body is provided with a sealing shaft sleeve and a sealing bolt, the sealing shaft sleeve is arranged at the right end of the cylinder body, and the sealing shaft sleeve is fixedly connected with the cylinder body through the sealing bolt.

Optionally, the sealing device further comprises a sealing ring, and the sealing ring is arranged in a gap between the sealing shaft sleeve and the sealing bolt.

Optionally, the cylinder body is provided with an end cover, the end cover is arranged at the left end of the cylinder body, and the end cover is connected with the cylinder body through a sealing bolt.

Optionally, the oil inlet pipe is arranged on the surface of one side of the left end of the cylinder body.

Optionally, the connecting device further comprises connecting holes symmetrically formed in the surface of the left side of the end cover.

Optionally, the end cover further comprises a sinking platform, and the sinking platform is arranged in the middle of the left side of the end cover.

1. According to the hydraulic cylinder with the built-in hydraulic lock, the hydraulic lock is arranged inside the cylinder, so that the outside of the cylinder is cleaner, peripheral parts are not easily affected after installation, the appearance is attractive, and the hydraulic cylinder has a better development prospect;

2. the hydraulic oil cylinder with the built-in hydraulic lock adopts a hidden design, can support a large and heavy workpiece through the combination of parts, avoids the workpiece damage phenomenon caused by sudden pressure loss of the oil cylinder after power failure, and has good practicability;

3. this built-in hydraulic pressure lock hydraulic cylinder after removing the oil pressure under elastic component's effect, can realize the support to the heavy object to can lock in the position of difference, the adaptation face is wider, is accepted by people more easily.

Drawings

FIG. 1 is a schematic sectional view of an embodiment of the present application;

fig. 2 is a left side sectional structure diagram provided in the embodiment of the present application.

Reference numerals: 1. a cylinder body; 2. a piston slide block; 3. a top rod; 4. mounting grooves; 5. a coil spring; 6. a movable block; 7. a card slot; 8. a limiting bulge; 9. an oil guide hole; 10. a base plate; 11. sealing the shaft sleeve; 12. a seal bolt; 13. a seal ring; 14. an end cap; 15. an oil inlet pipe; 16. connecting holes; 17. and (4) sinking the platform.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

In order to more clearly understand the technical solution shown in the embodiments of the present application, the operation of the existing hydraulic lock hydraulic cylinder will be described first.

Current hydraulic cylinder that has self-locking function adopts the installation locking valve on the defeated oil pipe of outside more, reaches the purpose of locking through the backward flow of control fluid, guarantees not taking place to descend under the circumstances that the heavy object supported, but current locking valve and pipeline all are outside at the hydro-cylinder, if the in-process that uses bumps, damages easily, and then causes falling of heavy object.

Referring to fig. 1, a hydraulic cylinder with a built-in hydraulic lock disclosed in an embodiment of the present application includes: cylinder body 1, piston slide 2, ejector pin 3, mounting groove 4, coil spring 5, movable block 6, draw-in groove 7, spacing arch 8 and lead oilhole 9, swing joint has piston slide 2 in the cylinder body 1, piston slide 2's right side fixedly connected with

ejector pin

3, 4 symmetries of mounting groove are seted up on piston slide 2, the inboard surperficial coil spring 5 that is connected with of mounting groove 4, coil spring 5's tip fixedly connected with movable block 6, respectively the spacing arch 8 of fixedly connected with on the movable block 6, the border position of movable block 6 contacts with the surface of mounting groove 4 respectively, draw-in groove 7 equidistance is seted up on the inner wall of cylinder body 1, spacing arch 8 is connected with the draw-in groove 7 cooperation of corresponding position respectively, lead oilhole 9 and set up on the surface of 2 left side border positions of piston slide, lead oilhole 9 and link up mutually with mounting groove 4.

Specific speaking, it is sealed between the edge of piston slide 2 and cylinder body 1, can remove under the promotion of oil pressure, and then drive ejector pin 3 and remove, when the oil pressure lasts the increase, fluid enters into mounting groove 4 in through leading oilhole 9, and then promote movable block 6 and remove, make coil spring 5 compress, and then make spacing arch 8 and draw-in groove 7 separation, coil spring 5 promotes ejector pin 3 when the oil pressure is removed, and then combine with draw-in groove 7, realize the support to the heavy object, when the oil pressure resumes and slowly steps down, can drive the heavy object and descend slowly, good stability, the outward appearance is clean and tidy.

Referring to fig. 1, as another embodiment provided by the present application, the present application further includes a backing plate 10, and the backing plate 10 is disposed in a gap at a connection position of the coil spring 5 and the mounting groove 4.

Specifically, the setting of backing plate 10 can reduce the wearing and tearing to mounting groove 4 in the operation of coil spring 5, and the maintenance of follow-up being convenient for.

Referring to fig. 1, as another specific embodiment provided by the application, the cylinder block further includes a sealing shaft sleeve 11 and a sealing bolt 12, the sealing shaft sleeve 11 is disposed at the right end of the cylinder block 1, and the sealing shaft sleeve 11 is fixedly connected to the cylinder block 1 through the sealing bolt 12.

Specifically, the seal bush 11 is used to seal a gap between the cylinder body 1 and the rod 3.

Referring to fig. 2, as another embodiment provided by the application, the sealing device further includes a sealing ring 13, and the sealing ring 13 is disposed in a gap between the sealing sleeve 11 and the sealing bolt 12.

Specifically, the sealing ring 13 is arranged to prevent the leakage of the oil inside the oil tank.

Referring to fig. 1, as another embodiment provided by the application, the cylinder block further includes an end cover 14, the end cover 14 is disposed at the left end of the cylinder block 1, and the end cover 14 is connected to the cylinder block 1 through a seal bolt 12.

Specifically, the end cap 14 is used to seal the left end of the cylinder block 1 and provide a connection location.

Referring to fig. 1, as another embodiment provided by the application, an oil inlet pipe 15 is further included, and the oil inlet pipe 15 is provided on a surface of a left end side of the cylinder body 1.

Specifically, the oil inlet pipe 15 is provided to introduce external oil into the cylinder 1.

Referring to fig. 2, as another embodiment provided by the present application, the present application further includes connection holes 16, and the connection holes 16 are symmetrically formed on the surface of the left side of the end cap 14.

Specifically, coupling holes 16 are provided for coupling and fixing the end caps 14.

Referring to fig. 2, as another embodiment provided by the application, the device further includes a sinking platform 17, and the sinking platform 17 is disposed at a middle position on the left side of the end cover 14.

In particular, the sinking platform 17 is arranged to facilitate the hiding of the fixing piece.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A built-in hydraulic lock hydraulic cylinder, comprising: the cylinder body (1), the piston slider (2), the ejector rod (3), the mounting groove (4), the spiral spring (5), the movable block (6), the clamping groove (7), the limiting protrusion (8) and the oil guide hole (9), wherein the piston slider (2) is movably connected in the cylinder body (1), the ejector rod (3) is fixedly connected to the right side of the piston slider (2), the mounting groove (4) is symmetrically arranged on the piston slider (2), the spiral spring (5) is connected to the surface of the inner side of the mounting groove (4), the movable block (6) is fixedly connected to the end part of the spiral spring (5), the limiting protrusion (8) is respectively and fixedly connected to the movable block (6), the edge position of the movable block (6) is respectively contacted with the surface of the mounting groove (4), the clamping groove (7) is equidistantly arranged on the inner wall of the cylinder body (1), and the limiting protrusion (8) is respectively matched and connected with the clamping groove (7) corresponding to the position, the oil guide hole (9) is formed in the surface of the edge of the left side of the piston sliding block (2), and the oil guide hole (9) is communicated with the mounting groove (4).

2. The hydraulic oil cylinder with the built-in hydraulic lock as claimed in claim 1, characterized in that: the mounting structure is characterized by further comprising a backing plate (10), wherein the backing plate (10) is arranged in a gap at the joint of the spiral spring (5) and the mounting groove (4).

3. The hydraulic cylinder with built-in hydraulic lock as claimed in claim 1, characterized in that: still include sealed axle sleeve (11) and sealing bolt (12), sealed axle sleeve (11) set up the right-hand member in cylinder body (1), sealed axle sleeve (11) are through sealing bolt (12) and cylinder body (1) fixed connection.

4. A hydraulic cylinder with built-in hydraulic lock according to claim 3, characterized in that: the sealing device further comprises a sealing ring (13), and the sealing ring (13) is arranged in a gap between the sealing shaft sleeve (11) and the sealing bolt (12).

5. The hydraulic oil cylinder with the built-in hydraulic lock as claimed in claim 1, characterized in that: the cylinder body is characterized by further comprising an end cover (14), wherein the end cover (14) is arranged at the left end of the cylinder body (1), and the end cover (14) is connected with the cylinder body (1) through a sealing bolt (12).

6. The hydraulic cylinder with built-in hydraulic lock as claimed in claim 1, characterized in that: the oil inlet device is characterized by further comprising an oil inlet pipe (15), wherein the oil inlet pipe (15) is arranged on the surface of one side of the left end of the cylinder body (1).

7. The hydraulic cylinder with built-in hydraulic lock as claimed in claim 5, characterized in that: the connecting structure further comprises connecting holes (16), and the connecting holes (16) are symmetrically formed in the surface of the left side of the end cover (14).

8. The hydraulic cylinder with built-in hydraulic lock as claimed in claim 5, characterized in that: the end cover structure further comprises a sinking platform (17), and the sinking platform (17) is arranged in the middle of the left side of the end cover (14).