CN210686499U

CN210686499U - But locking force automatically regulated type pneumatic cylinder

Info

Publication number: CN210686499U
Application number: CN201921825991.1U
Authority: CN
Inventors: 吴伟科
Original assignee: Zhuji Guangjiu Hydraulic Machinery Technology Co Ltd
Current assignee: Zhuji Guangjiu Hydraulic Machinery Technology Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-06-05
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a hydraulic cylinder with automatically adjustable locking force, which comprises a cylinder barrel, wherein the rear end inside the cylinder barrel is slidably provided with a piston rod, the rear end of the outer surface of the cylinder barrel is provided with a support ring in a threaded manner, the upper surface and the lower surface of the support ring are hinged with a cross rod through grooves, the rear side of the inner surface of the cross rod is hinged with a locking rod, the lower surface of the locking rod is fixedly connected with an arc-shaped locking plate, the inner arc surface of the arc locking plate is tightly pressed and connected with the two sides of the outer surface of the piston rod, the front end of the inner part of the cross rod is provided with a connecting through groove, an auxiliary hydraulic cylinder is fixedly arranged on the surface of the front end of the support ring, an auxiliary piston rod is connected inside the auxiliary hydraulic cylinder in a sliding manner, the upper surface of the auxiliary piston rod is fixedly welded with a puller rod, and the outer surface of the puller rod is connected to the inner side surface of the connecting through groove in a sliding mode. But a locking force automatically regulated type pneumatic cylinder, to the locking positioning effect ideal of piston rod, convenient operation.

Description

But locking force automatically regulated type pneumatic cylinder

Technical Field

The utility model relates to a pneumatic cylinder field, more specifically say, relate to a but locking force automatically regulated type pneumatic cylinder.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion), and in the use process of the hydraulic cylinder, sometimes a piston rod needs to be stabilized at one position, and further long-time pressure maintaining is needed, so that the hydraulic cylinder is required to be provided with a locking structure.

And current locking structure locks the location through the lever structure of outer antithetical couplet to the piston rod more, and inconvenient stable installation is on the pneumatic cylinder, need install the counterpoint again when using like this, and is more troublesome, compresses tightly poor stability moreover, and when driving supplementary locking structure, locks through external power simultaneously, and not only the poor stability is operated also more troublesome moreover, and the result of use is unsatisfactory.

Disclosure of Invention

To the problem that exists among the prior art, the utility model aims to provide a but locking force automatically regulated type pneumatic cylinder, come articulated horizontal pole through the support ring of threaded connection in cylinder rear end, and then connect check lock lever and arc locking plate, do benefit to the installation location, convenient synchronous use, the bottom position of simultaneously through the lateral pipe butt joint to the auxiliary hydraulic cylinder, inside hydraulic oil gets into the auxiliary hydraulic cylinder, promote the auxiliary piston rod and stretch out, and then make the arc locking plate compress tightly the piston rod both sides and carry out the centre gripping location, the improvement is to the locking stability of piston rod.

In order to solve the above problems, the utility model adopts the following technical proposal.

The utility model provides a but locking power automatically regulated type pneumatic cylinder, includes the cylinder, the inside rear end slidable mounting of cylinder has the piston rod, the support ring is installed to the surface rear end screw thread of cylinder, the upper surface and the lower surface of support ring all articulate through the recess has the horizontal pole, the inside surperficial rear side of horizontal pole articulates there is the check lock lever, the one end fixedly connected with arc locking plate of check lock lever, the inboard arc surface of arc locking plate compresses tightly and connects in the surface both sides of piston rod, the inside front end of horizontal pole is equipped with connects logical groove, the front end fixed surface of support ring installs the auxiliary hydraulic cylinder, the inside slidable connection of auxiliary hydraulic cylinder has the auxiliary piston rod, the last fixed surface welding of auxiliary piston rod has the puller bar, the surface slidable connection of puller bar is in the inboard surface that the logical.

Furthermore, a first connecting pipe is arranged at the rear end of the outer side surface of the cylinder barrel, a second connecting pipe is arranged on the front side of the outer surface of the cylinder barrel, and arc pipes are fixedly arranged on two sides of the outer surface of the second connecting pipe.

Furthermore, the other end of the arc-shaped pipe is fixedly welded with a branch pipe, the other end of the branch pipe is fixedly connected to the bottom surface of the inside of the auxiliary hydraulic cylinder and is butted to the bottom position of the auxiliary hydraulic cylinder through the branch pipe, and an electric ball valve is fixedly mounted in the middle of the outer surface of the branch pipe.

Further, the outer surface upper end and the lower extreme of cylinder all fixed welding have fixed cassette, the upper surface of fixed cassette passes through the arc wall joint in the lower surface of bleeder.

Furthermore, the upper surface of the fixed clamping seat is fixedly provided with a movable clamping seat through a fixing screw, the lower surface of the movable clamping seat is clamped on the upper surface of the branch pipe, and the movable clamping seat is connected with the fixed clamping seat through the fixing screw and can compress the branch pipe.

Compared with the prior art, the utility model has the advantages of:

(1) this scheme is passed through threaded connection and is come articulated horizontal pole in the support ring of cylinder rear end, and then connects check lock lever and arc locking plate, does benefit to and fixes a position piston rod locking, convenient synchronous use.

(2) The arc pipe is installed to the second connecting pipe, and the arc pipe fixed weld has the bleeder, and through the bottom position of bleeder butt joint to hydraulic cylinder, inside hydraulic oil got into hydraulic cylinder, promote the auxiliary piston pole and stretch out, and then make arc locking plate compress tightly piston rod both sides and carry out the centre gripping location, improve the locking stability to the piston rod.

(3) The branch pipe is connected through the fixed clamping seat, and the movable clamping seat is installed by combining the fixed screw, so that the branch pipe can be compressed, and loosening and falling are avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of a hydraulic cylinder with automatically adjustable locking force according to the present invention;

fig. 2 is a schematic view of a partial structure of an arc-shaped locking plate connection of the hydraulic cylinder with automatically adjustable locking force according to the present invention;

fig. 3 is a side cross-sectional view of the connection of the arc-shaped locking plate of the hydraulic cylinder with automatically adjustable locking force according to the present invention;

fig. 4 is a side cross-sectional view of an arc tube of the hydraulic cylinder with automatically adjustable locking force according to the present invention;

fig. 5 is an enlarged view of the fixed cassette connection a in fig. 4.

The scores in the figures are as follows: 1 cylinder barrel, 11 piston rods, 12 supporting rings, 13 cross rods, 14 locking rods, 15 arc-shaped locking plates, 16 connecting through grooves, 17 auxiliary hydraulic cylinders, 18 auxiliary piston rods, 19 jacking rods, 2 first connecting pipes, 21 second connecting pipes, 22 arc-shaped pipes, 23 branch pipes, 24 fixing clamping seats, 25 movable clamping seats, 26 fixing screws and 27 electric ball valves.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

A hydraulic cylinder with automatically adjustable locking force comprises a cylinder barrel 1, please refer to fig. 1, fig. 2 and fig. 3, a piston rod 11 is slidably mounted at the rear end of the inside of the cylinder barrel 1, a support ring 12 is threadedly mounted at the rear end of the outer surface of the cylinder barrel 1, and is conveniently connected and fixed with the cylinder barrel 1, a cross rod 13 is hinged on the upper surface and the lower surface of the support ring 12 through grooves, a locking rod 14 is hinged on the rear side of the inner surface of the cross rod 13, an arc-shaped locking plate 15 is fixedly connected to one end of the locking rod 14, the arc-shaped locking plate 15 can be pressed inwards through the cross rod 13 as a lever, so as to clamp and position the piston rod 11, improve the locking stability and avoid loosening, the arc-shaped surface at the inner side of the arc-shaped locking plate 15 is pressed and connected to the two sides of the outer surface of the piston rod 11, and then supply with hydraulic oil and promote auxiliary piston rod 18, can promote the front end outside upset of horizontal pole 13, and then take the inside side of arc locking plate 15 to be tight, and is convenient stable, the inside sliding connection of auxiliary hydraulic cylinder 17 has auxiliary piston rod 18, the last fixed surface welding of auxiliary piston rod 18 has tightening rod 19, the surface sliding connection of tightening rod 19 is in the inboard surface of connecting logical groove 16, because it is longer to connect logical groove 16 lateral length, tightening rod 19 can lateral sliding, can not cause the position to be injectd because of the rotation of horizontal pole 13, do benefit to drive operation.

Referring to fig. 1, 4 and 5, a first connection pipe 2 is disposed at the rear end of the outer surface of a cylinder barrel 1, a second connection pipe 21 is disposed at the front side of the outer surface of the cylinder barrel 1, and a pipeline and an electromagnetic valve can be connected to control oil to drive a piston rod 11 to slide back and forth for extension, which belongs to the prior art and is not repeated, arc pipes 22 are fixedly mounted at both sides of the outer surface of the second connection pipe 21, a branch pipe 23 is fixedly welded at the other end of the arc pipe 22, the branch pipe 23 is connected through the arc pipe 22, and can reach the other side position by bypassing the surface of the cylinder barrel 1, which is convenient to mount and fix, and can be arranged in a staggered manner with the first connection pipe 2 for use, the other end of the branch pipe 23 is fixedly connected to the inner bottom surface of an auxiliary hydraulic cylinder 17, an electric ball valve 27 is fixedly mounted at the middle position of the outer surface of the branch pipe 23, can the electric control switching, the equal fixed welding of the surface upper end of cylinder 1 and lower extreme has fixed cassette 24, the upper surface of fixed cassette 24 passes through the arc wall joint in the lower surface of bleeder 23, fixed cassette 24's upper surface has movable cassette 25 through 26 fixed mounting of set screw, the lower surface joint of activity cassette 25 is in the upper surface of bleeder 23, combine movable cassette 25 through fixed cassette 24, can chucking bleeder 23 fix, avoid droing through arousing vibrations because the oil circuit, the stability of using is improved.

When in use, the support ring 12 and the cylinder barrel 1 are connected and fixed, the movable clamping seat 25 is combined through the fixed clamping seat 24, the branch pipe 23 can be clamped for fixing, and oil is supplied from the second connecting pipe 21 to the inside of the cylinder 1, so that the piston in the cylinder 1 can be pushed, and then the piston rod 11 is pushed out to the rear side, the piston rod 11 can be stabilized at a position after the oil supply is stopped, since, when oil is supplied to the inside of the cylinder 1, part of the hydraulic oil flows into the branch pipe 23 through the arc pipe 22 connected to the second connection pipe 21, when the electric ball valve 27 is opened, hydraulic oil can enter the auxiliary hydraulic cylinder 17, push the auxiliary piston rod 18 to extend, so that the tightening rod 19 pushes the front end of the cross rod 13 to rotate around the end of the support ring 12, and then the rear end of the cross rod 13 approaches the cylinder barrel 1, and then the arc locking plate 15 is pressed to the two sides of the piston rod 11 to clamp and position, and the locking stability of the piston rod is improved.

The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a but locking force automatically regulated type pneumatic cylinder, includes cylinder (1), its characterized in that: the inner rear end of the cylinder barrel (1) is slidably provided with a piston rod (11), the outer rear end of the cylinder barrel (1) is provided with a support ring (12) in a threaded manner, the upper surface and the lower surface of the support ring (12) are respectively hinged with a cross rod (13) through grooves, the rear side of the inner surface of the cross rod (13) is hinged with a locking rod (14), one end of the locking rod (14) is fixedly connected with an arc-shaped locking plate (15), the inner arc-shaped surface of the arc-shaped locking plate (15) is tightly pressed and connected to two sides of the outer surface of the piston rod (11), the front end of the inner part of the cross rod (13) is provided with a connecting through groove (16), the front end surface of the support ring (12) is fixedly provided with an auxiliary hydraulic cylinder (17), the inner part of the auxiliary hydraulic cylinder (17) is slidably connected with an, the outer surface of the tightening rod (19) is connected with the inner side surface of the connecting through groove (16) in a sliding mode.

2. The hydraulic cylinder of claim 1, wherein the locking force is automatically adjustable, and the hydraulic cylinder further comprises: the cylinder barrel is characterized in that a first connecting pipe (2) is arranged at the rear end of the outer side surface of the cylinder barrel (1), a second connecting pipe (21) is arranged on the front side of the outer surface of the cylinder barrel (1), and arc pipes (22) are fixedly arranged on two sides of the outer surface of the second connecting pipe (21).

3. The hydraulic cylinder of claim 2, wherein the locking force is automatically adjustable, and the hydraulic cylinder further comprises: the other end of the arc-shaped pipe (22) is fixedly welded with a branch pipe (23), the other end of the branch pipe (23) is fixedly connected to the inner bottom surface of the auxiliary hydraulic cylinder (17), and an electric ball valve (27) is fixedly mounted in the middle of the outer surface of the branch pipe (23).

4. The hydraulic cylinder of claim 1, wherein the locking force is automatically adjustable, and the hydraulic cylinder further comprises: the outer surface upper end and the lower extreme of cylinder (1) all fixed welding have fixed cassette (24), the upper surface of fixed cassette (24) passes through the arc wall joint in the lower surface of bleeder (23).

5. The hydraulic cylinder of claim 4, wherein the locking force is automatically adjustable, and the hydraulic cylinder further comprises: the upper surface of the fixed clamping seat (24) is fixedly provided with a movable clamping seat (25) through a fixing screw (26), and the lower surface of the movable clamping seat (25) is clamped on the upper surface of the branch pipe (23).