CN218325525U

CN218325525U - Stepping cylinder

Info

Publication number: CN218325525U
Application number: CN202222458839.2U
Authority: CN
Inventors: 王�华
Original assignee: Ningbo Skoda Pneumatic Hydraulic Machinery Co ltd
Current assignee: Ningbo Skoda Pneumatic Hydraulic Machinery Co ltd
Priority date: 2022-09-15
Filing date: 2022-09-15
Publication date: 2023-01-17
Anticipated expiration: 2032-09-15

Abstract

The utility model relates to the technical field of cylinders, in particular to a stepping cylinder, which comprises a large cylinder body, wherein the large cylinder body is detachably connected with a small cylinder body through a plurality of bolts, one end of the small cylinder body is detachably connected with an end cover through a plurality of bolts, the inside of the large cylinder body is slidably connected with a first piston, the first piston is fixedly connected with a first piston rod, the first piston rod and a second piston rod are clamped, the second piston rod is fixedly connected with a second piston, the first piston is provided with a first sealing ring, the second piston rod is provided with a linking structure, the linking structure comprises a clamping block, the second piston rod is slidably connected with a clamping block, the clamping block is clamped with the first piston rod, the clamping block is slidably connected with a sliding block, the sliding block is rotatably connected with a stopping block, and the stopping block is clamped with the first piston rod; the starting speed of the large cylinder can be increased, so that higher requirements are met, the first piston rod and the second piston rod are convenient to separate, and the cylinder is convenient to overhaul and maintain.

Description

Stepping cylinder

Technical Field

The utility model relates to a step-by-step cylinder specifically is a step-by-step cylinder belongs to cylinder technical field.

Background

The cylinder is a cylindrical metal part which guides the piston to do linear reciprocating motion in the cylinder, air converts heat energy into mechanical energy through expansion in the cylinder of the engine, gas is compressed by the piston in the cylinder of the compressor to improve pressure, the stepping cylinder is used as one of the cylinders, and has the characteristics of novel structure, small volume and the like, and the working medium is dry and clean compressed air.

However, the piston rod in the cylinder is pushed by the air pressure to reciprocate, the larger the cylinder is, the slower the starting speed is, and in the actual use process, the starting speed of the large cylinder needs to be increased in order to meet higher requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a step-by-step cylinder just in order to solve above-mentioned problem, can accelerate the functioning speed of big cylinder to satisfy higher requirement, and be convenient for the separation between first piston rod and the second piston rod, the maintenance of the cylinder of being convenient for is maintained.

The utility model discloses a following technical scheme realizes above-mentioned purpose, a step-by-step cylinder, including big cylinder body, can dismantle through a plurality of bolts on the big cylinder body and be connected with little cylinder body, the one end of little cylinder body can dismantle through a plurality of bolts and be connected with the end cover, the inside sliding connection of big cylinder body has first piston, first piston fixed connection is in first piston rod, the block between first piston rod and the second piston rod, fixedly connected with second piston on the second piston rod, be equipped with first sealing washer on the first piston, be equipped with linking structure on the second piston rod, linking structure includes the fixture block, sliding connection has the fixture block on the second piston rod, the block between fixture block and the first piston rod, sliding connection has the slider on the fixture block, it is connected with the dog to rotate on the slider, the block between dog and the first piston rod.

Preferably, a first return spring is fixedly connected between the stop block and the clamping block, and a second return spring is fixedly connected between the clamping block and the second piston rod.

Preferably, the section of the fixture block is in an L-shaped structure, and one end of the section of the fixture block is in a trapezoid structure.

Preferably, the big cylinder body is provided with a fourth vent hole, and the big cylinder body and the small cylinder body are both clamped with third sealing rings.

Preferably, the small cylinder body is provided with a first vent hole, and the small cylinder body is provided with a second vent hole and a third vent hole.

Preferably, a fourth sealing ring is clamped on the small cylinder body, and a fourth sealing ring is clamped on the large cylinder body.

Preferably, the end cover props against a fourth sealing ring, and the fourth sealing ring is propped against between the small cylinder body and the large cylinder body.

Preferably, a second sealing ring is clamped on the second piston, and the second sealing ring is abutted against the small cylinder body.

The utility model has the advantages that: the large cylinder body is detachably connected with a small cylinder body through a plurality of bolts, one end of the small cylinder body is detachably connected with an end cover through a plurality of bolts, the inside of the large cylinder body is slidably connected with a first piston, the first piston is fixedly connected with a first piston rod, the first piston rod is clamped with a second piston rod, the second piston rod is fixedly connected with a second piston, the first piston is provided with a first sealing ring, the second piston rod is slidably connected with a clamping block, the clamping block is clamped with the first piston rod, the clamping block is slidably connected with a sliding block, the sliding block is rotatably connected with a stop block, the stop block is clamped with the first piston rod, further, the small cylinder body is connected with the large cylinder body through a piston rod, the second piston rod of the small cylinder body is fast to start because of small cylinder body, the second piston rod exerts a driving force on the first piston rod, and the first piston rod in the large cylinder body is simultaneously pushed by air pressure and the second piston rod when starting, the stress is larger, the starting is faster, so that higher use requirements can be met, when the first piston needs to be overhauled and maintained or replaced, the bolt for fixing the large cylinder body and the small cylinder body is firstly turned down through a wrench, the large cylinder body and the small cylinder body are separated at the moment, then the check block is pulled, when the check block is pulled out of the groove in the first piston rod, the check block is rotated for 180 degrees, the end part of the check block is located inside the edge of the check block, the check block can be pressed to enable the check block and the first piston rod not to be clamped, the second piston rod can be taken down from the first piston rod at the moment, so that the first piston rod and the second piston rod are quickly separated, the second piston rod is prevented from abutting against the first piston when the first piston is detached, and the overhauling and maintenance of the first piston are facilitated.

Drawings

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

fig. 2 is a schematic view of a connection structure of the large cylinder and the first piston rod of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is an enlarged schematic view of the part B shown in fig. 2.

In the figure: 1. a large cylinder body; 2. a small cylinder body; 3. a first piston rod; 4. a first piston; 5. a second piston rod; 6. a second piston; 7. a linking structure; 701. a clamping block; 702. a stopper; 703. a slider; 704. a first return spring; 705. a second return spring; 8. an end cap; 9. a first seal ring; 10. a second seal ring; 11. a third seal ring; 12. a fourth seal ring; 13. a first air vent; 14. a second vent hole; 15. a third vent hole; 16. and a fourth vent hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 efforts all belong to the protection scope of the present invention.

The embodiment is as follows: referring to fig. 1-4, a stepping cylinder includes a large cylinder body 1, a small cylinder body 2 detachably connected to the large cylinder body 1 through a plurality of bolts, an end cover 8 detachably connected to one end of the small cylinder body 2 through a plurality of bolts, a first piston 4 slidably connected to the inside of the large cylinder body 1, the first piston 4 fixedly connected to a first piston rod 3, the first piston rod 3 and a second piston rod 5 are clamped together, a second piston 6 is fixedly connected to the second piston rod 5, a first seal ring 9 is disposed on the first piston 4, a linking structure 7 is disposed on the second piston rod 5, the linking structure 7 includes a fixture block 701, a fixture block 701 is slidably connected to the second piston rod 5, the fixture block 701 is clamped to the first piston rod 3, a slide block is slidably connected to the fixture block 701, a stop block 702 is rotatably connected to the slide block 703, and the stop block 703 is clamped to the first piston rod 3; a first return spring 704 is fixedly connected between the stopper 702 and the fixture block 701, a second return spring 705 is fixedly connected between the fixture block 701 and the second piston rod 5, the section of the fixture block 701 is in an L-shaped structure, and one end of the section of the fixture block 701 is in a trapezoid structure, so that the fixture block 701 can be clamped with the first piston rod 3 through the first return spring 704; the large cylinder body 1 is provided with a fourth vent hole 16, the large cylinder body 1 and the small cylinder body 2 are respectively clamped with a third sealing ring 11, the small cylinder body 2 is provided with a first vent hole 13, the small cylinder body 2 is provided with a second vent hole 14 and a third vent hole 15, the small cylinder body 2 is clamped with a fourth sealing ring 12, and the large cylinder body 1 is clamped with the fourth sealing ring 12, so that the extension and contraction of the first piston rod 3 can be realized by controlling the air intake and exhaust of the four vent holes; the end cover 8 is abutted against a fourth sealing ring 12, the fourth sealing ring 12 is abutted between the small cylinder body 2 and the large cylinder body 1, the second sealing ring 10 is clamped on the second piston 6, and the second sealing ring 10 is abutted against the small cylinder body 2, so that the sealing property can be improved.

The utility model discloses when using, it is shown with reference to fig. 1 to fig. 4: firstly, a plurality of air pipe connectors are respectively arranged on a first air vent 13, a second air vent 14, a third air vent 15 and a fourth air vent 16, air pipelines are connected to the air pipe connectors, the first air vent 13 and the second air vent 14 are communicated with the inside of the small cylinder body 2, the third air vent 15, the fourth air vent 16 are communicated with the large cylinder body 1, the extension and contraction of the first piston rod 3 can be controlled through the air intake and the air exhaust of the four air vents, the second piston rod 5 of the small cylinder body 2 is quickly started due to the small cylinder body because the small cylinder body is connected with the large cylinder body 1, the second piston rod 5 exerts a driving force on the first piston rod 3, the first piston rod 3 in the large cylinder body 1 is simultaneously pushed by air pressure and the second piston rod 5 when being started, the stress is larger, and the starting is quicker, therefore, higher use requirements can be met, when the first piston 4 needs to be overhauled and maintained or replaced, the bolt for fixing the large cylinder body 1 and the small cylinder body 2 is firstly screwed down through a wrench, the large cylinder body 1 and the small cylinder body 2 are separated at the moment, then the stop block 702 is pulled, when the stop block 702 is pulled out of the groove in the first piston rod 3, the stop block 702 is rotated 180 degrees, the end part of the stop block 702 is located inside the edge of the stop block 701 at the moment, the stop block 701 can be pressed to enable the clamping block 701 and the first piston rod 3 not to be clamped, at the moment, the second piston rod 5 can be taken down from the first piston rod 3, so that the first piston rod 3 and the second piston rod 5 are quickly separated, the second piston rod 5 is prevented from abutting against the first piston 4 when the first piston 4 is detached, and the overhauling and maintenance of the first piston 4 are facilitated.

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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a step cylinder, includes big cylinder body (1), its characterized in that: the improved cylinder is characterized in that a small cylinder body (2) is detachably connected to the large cylinder body (1) through a plurality of bolts, an end cover (8) is detachably connected to one end of the small cylinder body (2) through a plurality of bolts, a first piston (4) is slidably connected to the inside of the large cylinder body (1), the first piston (4) is fixedly connected to a first piston rod (3), the first piston rod (3) is clamped with a second piston rod (5), a second piston (6) is fixedly connected to the second piston rod (5), a first sealing ring (9) is arranged on the first piston (4), a linking structure (7) is arranged on the second piston rod (5), the linking structure (7) comprises a clamping block (701), a clamping block (701) is slidably connected to the second piston rod (5), the clamping block (701) is clamped with the first piston rod (3), a sliding block (703) is slidably connected to the clamping block (701), a stopping block (702) is rotatably connected to the sliding block (703) on the sliding block (703), and the first piston rod (3) is clamped between the stopping block (702).

2. A stepping cylinder as claimed in claim 1, wherein: a first return spring (704) is fixedly connected between the stop block (702) and the clamping block (701), and a second return spring (705) is fixedly connected between the clamping block (701) and the second piston rod (5).

3. A stepping cylinder as claimed in claim 1, wherein: the section of the clamping block (701) is of an L-shaped structure, and one end of the section of the clamping block (701) is of a trapezoid structure.

4. A stepping cylinder as claimed in claim 3, wherein: the large cylinder body (1) is provided with a fourth vent hole (16), and the large cylinder body (1) and the small cylinder body (2) are clamped with third sealing rings (11).

5. A stepping cylinder as claimed in claim 4, wherein: be equipped with first air vent (13) on little cylinder body (2), be equipped with second air vent (14) and be equipped with third air vent (15) on little cylinder body (2).

6. A stepping cylinder as claimed in claim 5, wherein: a fourth sealing ring (12) is clamped on the small cylinder body (2), and a fourth sealing ring (12) is clamped on the large cylinder body (1).

7. A stepping cylinder as claimed in claim 6, wherein: the end cover (8) is abutted against the fourth sealing ring (12), and the fourth sealing ring (12) is abutted between the small cylinder body (2) and the large cylinder body (1).

8. A stepping cylinder as claimed in claim 7, wherein: and a second sealing ring (10) is clamped on the second piston (6), and the second sealing ring (10) is abutted against the small cylinder body (2).