CN214578076U - Cylinder body - Google Patents

Abstract

The utility model discloses a solve the problem that the elastic component reconversion that exists in the fluid pressure actuating mechanism field leads to the extension length of piston rod to produce the change, a cylinder body is provided, this cylinder body includes the cylinder body, first piston, the second piston, piston rod and first elastic component, the cylinder body is provided with the separator, first cylinder and second cylinder are separated into with the inner chamber of cylinder body to the separator, first piston sets up in first cylinder, the second piston sets up in the second cylinder, the other end of piston rod passes first piston and separator and connects the second piston, the piston rod is provided with first spacing arch, piston rod and first piston swing joint, first elastic component sets up in first cylinder, first elastic component sets up between first piston and separator. The utility model discloses a cylinder body, first piston and piston rod swing joint can not arouse the extension length production change of piston rod when first elastic component reconversion.

Description

Cylinder body

Technical Field

The utility model relates to a fluid pressure actuating mechanism, in particular to cylinder body.

Background

The existing cylinder body is generally provided with an elastic part at the tail end of the piston or the cylinder body in order to prevent the piston from impacting the cylinder body and causing the cylinder body and the piston to be damaged. When the cylinder body works, the elastic piece is impacted and deformed by the piston, so that impact force is absorbed, and damage to the cylinder body and the piston is reduced.

However, when the cylinder body does not work any more, the elastic element is not subjected to the pressure of fluid in the inner cavity of the cylinder body any more, so that the original shape can be recovered, and at the moment, the piston and the piston rod can be bounced away by the elastic element, so that the extending length of the piston rod is changed, and the normal operation is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a cylinder body, first elastic component still play certain buffering protection, just the utility model discloses a first elastic component does not have prior art's side effect, and when out of work, first elastic component reconversion can not arouse that the extension length of piston rod produces the change.

According to the embodiment of the utility model, a cylinder body comprises a cylinder body, a first piston, a second piston, a piston rod and a first elastic part, wherein the cylinder body is provided with a partition which divides an inner cavity of the cylinder body into a first cylinder and a second cylinder, two sides of the cylinder body close to the partition are respectively provided with a first outlet and a second outlet, two ends of the cylinder body far away from the partition are respectively provided with a first inlet and a second inlet, the first outlet and the first inlet are communicated with the first cylinder and the outside, the second outlet and the second inlet are communicated with the second cylinder and the outside, the first piston is arranged in the first cylinder, the second piston is arranged in the second cylinder, one end of the piston rod is arranged outside the cylinder, the other end of the piston rod is arranged in the cylinder body, and the other end of the piston rod passes through the first piston and the partition and is connected with the second piston, the piston rod is provided with a first limiting protrusion, the piston rod is movably connected with the first piston, when the first piston moves towards one end close to the isolating piece, the first piston is abutted to the first limiting protrusion and drives the piston rod to move, the first elastic piece is arranged in the first cylinder barrel, and the first elastic piece is arranged between the first piston and the isolating piece.

According to the utility model discloses cylinder body has following beneficial effect at least: the first piston is movably connected with the piston rod, and the extending length of the piston rod cannot be changed when the first elastic piece is restored.

According to some embodiments of the invention, the first elastic member is a spring or a disc spring or an elastic plastic member.

According to some embodiments of the utility model, the cylinder body includes first components of a whole that can function independently and second components of a whole that can function independently, first components of a whole that can function independently with second components of a whole that can function independently connect, first cylinder is located first components of a whole that can function independently, the second cylinder is located the second components of a whole that can function independently.

According to some embodiments of the invention, the first part is in threaded connection with one end of the spacer, and the second part is in threaded connection with the other end of the spacer.

According to some embodiments of the invention, the first and second sub-bodies are connected by a bolt.

According to some embodiments of the invention, the first and second segments are snap-connected.

According to some embodiments of the utility model, the cylinder body is provided with the end cover, the end cover sets up the one end at the cylinder body.

According to some embodiments of the utility model, the cylinder body is provided with the isolation groove, the separator sets up in the isolation groove.

According to some embodiments of the invention, the second piston is provided with a second seal groove, the second seal groove is used for installing an O-ring.

According to some embodiments of the invention, the lateral wall of the second piston is provided with a second buffer layer.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of the overall assembly of a cylinder body according to an embodiment of the present invention;

FIG. 2 is a schematic axial cross-sectional view of the cylinder block of FIG. 1;

FIG. 3 is a first schematic view illustrating an operating state of the cylinder shown in FIG. 1;

FIG. 4 is a second schematic view of the cylinder shown in FIG. 1;

FIG. 5 is a third schematic view of the cylinder shown in FIG. 1;

FIG. 6 is a fourth schematic view illustrating an operating state of the cylinder shown in FIG. 1;

FIG. 7 is a fifth schematic view illustrating the operation of the cylinder shown in FIG. 1;

FIG. 8 is a sixth schematic view of the cylinder shown in FIG. 1;

FIG. 9 is a seventh schematic view illustrating the operation of the cylinder shown in FIG. 1;

fig. 10 is a schematic cross-sectional view of a cylinder according to a second embodiment of the present invention.

Reference numerals:

a cylinder body 100, a first cylinder 101, a second cylinder 102;

a first split body 110, a first inlet 111, a first outlet 112;

a second section 120, a second inlet 121, a second outlet 122;

an isolation trench 130;

the separator 200;

a first piston 300, a first seal groove 310;

a second piston 400, a second seal groove 410;

a piston rod 500, a first limit protrusion 510 and a second limit protrusion 520;

a first elastic member 600;

a second elastic member 700;

end cap 800.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions, such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "tip", "inner", "outer", "axial", "radial", "circumferential", etc., are the positional or orientational relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, the side wall means the left side wall and/or the right side wall.

In the description of the present invention, "a plurality" means two or more, "more than", "less than", "more than" and the like are understood as excluding the number, "more than", "below", "within" and the like are understood as including the number. If the description of "first" and "second" is used for the purpose of distinguishing technical features, the description is not intended to indicate or imply relative importance or to implicitly indicate the number of the indicated technical features or to implicitly indicate the precedence of the indicated technical features.

In the description of the present invention, it should be understood that "a is disposed on B" merely represents the connection relationship between a and B, and does not represent that a is above B.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, 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. "bolted" and "screwed" are equally interchangeable. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

In the drawings of fig. 3 to 10 of the present invention, it should be understood that the first elastic member 600 and the second elastic member 700 are only schematically drawn, the bending times of the first elastic member and the second elastic member only indicate the magnitude of the deformation degree of the first elastic member and the second elastic member, and the more the bending times, the more the first elastic member and the second elastic member are compressed, the greater the deformation degree, the different bending times of the first elastic member and the second elastic member cannot be regarded as the misinterpretation that the number of the spring turns is different and the number of the disc springs is different.

Referring to fig. 1 to 10, a cylinder according to an embodiment of the present invention includes a cylinder body 100, a first piston 300, a second piston 400, a piston rod 500 and a first elastic member 600, the cylinder body 100 is provided with a partition 200, the partition 200 partitions an inner cavity of the cylinder body 100 into a first cylinder 101 and a second cylinder 102, two sides of the cylinder body 100 close to the partition 200 are respectively provided with a first outlet 112 and a second outlet 122, two ends of the cylinder body 100 away from the partition 200 are respectively provided with a first inlet 111 and a second inlet 121, the first outlet 112 and the first inlet 111 are both communicated with the first cylinder 101 and the outside, the second outlet 122 and the second inlet 121 are both communicated with the second cylinder 102 and the outside, the first piston 300 is disposed in the first cylinder 101, the second piston 400 is disposed in the second cylinder 102, one end of the piston rod 500 is outside the cylinder, the other end of the piston rod 500 is in the cylinder, the other end of the piston rod 500 passes through the first piston 300 and the spacer 200 and is connected with the second piston 400, the piston rod 500 is provided with a first limiting protrusion 510, the piston rod 500 is movably connected with the first piston 300, when the first piston 300 moves towards one end close to the spacer 200, the first piston 300 abuts against the first limiting protrusion 510 and drives the piston rod 500 to move, the first elastic piece 600 is arranged in the first cylinder 101, and the first elastic piece 600 is arranged between the first piston 300 and the spacer 200.

Referring to fig. 3 to 5, the first inlet 111 is filled with fluid to push the first piston 300 to move rightward, when the first piston 300 moves to abut against the first elastic member 600, the first elastic member 600 starts to be compressed to slow down the movement speed of the first piston 300, and when the first piston 300 drives the second piston 400 to move, the movement speed of the second piston 400 can also be slowed down, and when the second piston 400 moves to the rightmost end and impacts the cylinder body 100, the first inlet plays a role in buffering, absorbs impact force, and reduces damage to the cylinder body 100 and the second piston 400; and when the first piston 300 moves to abut against the first limiting protrusion 510, the first piston 300 drives the piston rod 500 and the second piston 400 to move rightwards, and finally when the second piston 400 moves to the rightmost end, the first piston 300 and the piston rod 500 stop moving rightwards, the extending length of the piston rod 500 is shortest, and the cylinder body is located at the first station. Referring to fig. 6 and 7, when the first inlet 111 stops to supply the fluid, the first elastic member 600 is no longer subjected to the pressure given by the fluid, and the first elastic member 600 starts to restore and pushes the first piston 300 to move leftward; because the first piston 300 is movably connected with the piston rod 500, the piston rod 500 cannot be driven to move together by the leftward movement of the first piston 300, so that the extending length of the piston rod 500 cannot be changed, and the cylinder body is still in the first station state. However, in the conventional cylinder, the elastic member starts to recover to push the piston to move, so as to drive the piston rod 500 to move, which results in a change in the extension length of the piston rod 500, and this may possibly affect the normal operation, for example, when the piston rod 500 is inserted into an object, at the first station, the piston rod 500 completely extends out from the insertion hole of the object, and the object can be freely disassembled and assembled, but if the piston rod 500 is inserted into the object again by a little extension due to the first elastic member 600, the piston rod 500 may possibly influence the disassembly and assembly of the object. The utility model discloses a cylinder body, first elastic component 600 still play certain buffering protection, and do not have prior art's side effect. Referring to fig. 7 to 9, the second inlet 121 is filled with fluid to push the second piston 400 and the piston rod 500 to move leftward, and when the first limiting protrusion 510 of the piston rod 500 moves to abut against the first piston 300, the second piston 400 drives the piston rod 500 and the first piston 300 to move leftward together, and finally when the first piston 300 moves to the leftmost end, the second piston 400 and the piston rod 500 stop moving leftward, the extending length of the piston rod 500 reaches the maximum, and the cylinder is located at the second station, so that a flow of the whole working cycle is achieved.

It is understood that the cylinder may be a fluid pressure actuator such as a cylinder, a hydraulic cylinder, etc., and when the cylinder is a cylinder, the first inlet 111 and the second inlet 121 can be filled with air, and when the cylinder is a hydraulic cylinder, the first inlet 111 and the second inlet 121 can be filled with liquid. It is understood that the first inlet 111, the first outlet 112, the second inlet 121, and the second outlet 122 are all connected to the outside, where "outside" simply refers to a state where a single cylinder is not connected to other devices, and in actual operation, the first inlet 111 and the second inlet 121 are generally connected to the cylinder cavity and a valve or a fluid pressure output device such as an air pump, a hydraulic pump, etc. through a pipeline, while the first outlet 112 and the second outlet 122 may be directly connected to the outside, may be provided with a silencer and then connected to the outside, and may be connected to the valve through a pipeline. It will be appreciated that the locations where the first inlet 111, the first outlet 112, the second inlet 121, and the second outlet 122 communicate with the cylinder cavity may be provided with additional cavities for facilitating the ingress and egress of fluid. It is understood that the second piston 400 and the piston rod 500 may be connected by an integral molding, or may be connected by a detachable manner such as a snap connection, a screw connection, or a movable connection. It is understood that the first stopper protrusion 510 may be a single protrusion-shaped portion, or the plunger rod 500 may be configured as a stepped shaft as in the present embodiment, and the first stopper protrusion 510 is naturally defined. It can be understood that there is a certain frictional resistance between both the first piston 300 and the second piston 400 and the cylinder body 100, and the position is not moved without a large external force acting. It will be appreciated that the separator 200 requires a certain sealing capability, and therefore the separator 200 may also be provided with sealing elements such as O-rings, gaskets, etc. It can be understood that, referring to fig. 10, the second piston 400 may also be provided with a second elastic element 700 to absorb the impact force, so as to reduce the damage to the cylinder body 100 and the piston, and at the same time, may also be provided with a second limiting protrusion 520, so as to movably connect the second piston 400 and the piston rod 500, and on the basis of still having a certain buffering protection effect, the second elastic element 700 is restored to the original state and does not cause the extension length of the piston rod 500 to change. It can be understood that this cylinder body can be used for the dismouting work of supplementary silk screen printing screen frame, when being in first station, carries out the work of opening the net this moment, when being in the second station, carries out the work of tearing the net this moment.

Referring to fig. 2 and 3, in some embodiments of the present invention, the first elastic member 600 is a spring or a disc spring or an elastic plastic member.

The spring is wide in source, easy to obtain, low in price and capable of reducing production cost; the disc spring has large load, short stroke, small required space, convenient combination and use, easy maintenance and replacement and high economic safety; the elastic plastic part is easy to generate electric sparks due to friction, and is suitable for cylinder bodies needing special occasions.

Referring to fig. 1, 2 and 3, in some embodiments of the present invention, the cylinder body 100 includes a first division body 110 and a second division body 120, the first division body 110 and the second division body 120 are connected, the first cylinder 101 is located in the first division body 110, and the second cylinder 102 is located in the second division body 120.

The cylinder body 100 is divided into the first and second sub-bodies 110 and 120, which facilitates the installation of the partition 200, makes the sealing effect of the partition 200 better, and facilitates the maintenance and replacement.

In some embodiments of the present invention, the first sub-body 110 is threadedly coupled to one end of the spacer 200, and the second sub-body 120 is threadedly coupled to the other end of the spacer 200.

The isolating piece 200 is provided with external threads, internal threads are arranged in inner cavities of the first split body 110 and the second split body 120, and the first split body 110 and the second split body 120 are connected and assembled with the isolating piece 200 in a threaded mode. It will be appreciated that the threads on the two ends of the spacer 200 may be different portions of the same thread, or may be different thread segments, and the direction of rotation, pitch, etc. may be different.

Referring to fig. 1 and 2, in some embodiments of the present invention, first and second sub-bodies 110 and 120 are connected by bolts.

The first and second sub-bodies 110 and 120 are provided with holes, one of the holes must be a through hole, the other one can be a through hole, or a blind hole, and the bolt can pass through the two through holes and then be fixed by a nut, or the bolt can pass through the through hole and then be connected and fixed by a thread in the blind hole. The bolt connection mode is simple and reliable, the dismounting is convenient, the connection is stable, and the looseness is not easy to occur.

In some embodiments of the present invention, the first and second sections 110 and 120 are snap-fit connected.

The mode dismouting of buckle connection is more convenient.

Referring to fig. 2 and 3, in some embodiments of the present invention, the cylinder body 100 is provided with an end cover 800, and the end cover 800 is provided at one end of the cylinder body 100.

The arrangement of the end cap 800 facilitates the installation and positioning of the first elastic member 600 and the spacer 200, and different end caps 800 are suitable for the piston rods 500 with different sizes, thereby facilitating the production and assembly.

Referring to fig. 2 and 3, in some embodiments of the present invention, the cylinder body 100 is provided with an isolation groove 130, and the isolation member 200 is disposed in the isolation groove 130.

The arrangement of the isolation groove 130 enables the isolation member 200 to be better limited in the cylinder body 100, and also can play a certain positioning role, so that the isolation member 200 can be conveniently installed, and the sealing effect of the isolation member 200 is better. It will be appreciated that in some embodiments, isolation slot 130 is split into two portions, one portion being located on first section 110 and the other portion being located on second section 120.

Referring to fig. 2 and 3, in some embodiments of the present invention, the first piston 300 is provided with a first sealing groove 310, and there is a first sealing groove 310 for mounting an O-ring.

The first sealing groove 310 is used for installing an O-ring, so that the sealing effect of the first piston 300 is better, the pressure of fluid can be more effectively converted into the thrust force of the first piston 300, and a certain frictional resistance is provided between the O-ring and the cylinder body 100, so that a certain limiting effect is provided for the first piston 300, so that the position of the first piston 300 can not be changed when no large external force is applied, and the length of the piston rod 500 is maintained unchanged.

Referring to fig. 2 and 3, in some embodiments of the present invention, the second piston 400 is provided with a second seal groove 410, and there is a second seal groove 410 for mounting an O-ring.

The second sealing groove 410 is used for installing an O-ring, so that the sealing effect of the second piston 400 is better, the pressure of fluid can be more effectively converted into the thrust force to the second piston 400, a certain frictional resistance is provided between the O-ring and the cylinder body 100, a certain limiting effect is provided for the second piston 400, the position of the second piston 400 can not be changed when no large external force is applied, and the length of the piston rod 500 is maintained unchanged.

In some embodiments of the present invention, the side wall of the first piston 300 is provided with a first buffer layer.

The first buffer layer can play a certain buffering role when the first piston 300 collides with the cylinder body 100, and reduces collision damage between the first piston 300 and the cylinder body 100. It is understood that the first cushioning layer may be a rubber layer, an air bag layer.

In some embodiments of the present invention, the sidewall of the second piston 400 is provided with a second buffer layer.

The second buffer layer can play a certain buffering role when the second piston 400 collides with the cylinder body 100, and reduces collision damage between the second piston 400 and the cylinder body 100. It is understood that the second cushioning layer may be a rubber layer, an air bag layer.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A cylinder block, comprising:

the cylinder body is provided with a partition, the partition divides an inner cavity of the cylinder body into a first cylinder barrel and a second cylinder barrel, a first outlet and a second outlet are respectively arranged on two sides of the cylinder body close to the partition, a first inlet and a second inlet are respectively arranged on two ends of the cylinder body far away from the partition, the first outlet and the first inlet are both communicated with the first cylinder barrel and the outside, and the second outlet and the second inlet are both communicated with the second cylinder barrel and the outside;

the first piston is arranged in the first cylinder barrel;

the second piston is arranged in the second cylinder barrel;

the piston rod is provided with a first limiting bulge, the piston rod is movably connected with the first piston, and when the first piston moves towards one end close to the isolating piece, the first piston is abutted to the first limiting bulge and drives the piston rod to move;

and the first elastic piece is arranged in the first cylinder barrel, and the first elastic piece is arranged between the first piston and the isolating piece.

2. The cylinder of claim 1, wherein the first elastic member is a spring or a disc spring or an elastic plastic member.

3. The cylinder block of claim 1, wherein the cylinder block body comprises a first split and a second split, the first split and the second split being connected, the first cylinder barrel being located within the first split, the second cylinder barrel being located within the second split.

4. The cylinder block according to claim 3, wherein the first division body is threadedly connected to one end of the partition, and the second division body is threadedly connected to the other end of the partition.

5. The cylinder block of claim 3, wherein the first and second segments are connected by a bolt.

6. The cylinder block of claim 3, wherein the first and second segments are snap-fit connected.

7. The cylinder of claim 1, wherein the cylinder body is provided with an end cap disposed at one end of the cylinder body.

8. The cylinder of claim 1, wherein the cylinder body is provided with an isolation groove, the isolator being disposed within the isolation groove.

9. The cylinder block of claim 1, wherein the second piston is provided with a second seal groove for mounting an O-ring seal.

10. The cylinder block of claim 1, wherein a side wall of the second piston is provided with a second cushioning layer.

Images