CN210738981U - Piston rod for cylinder - Google Patents
Piston rod for cylinder Download PDFInfo
- Publication number
- CN210738981U CN210738981U CN201920621457.2U CN201920621457U CN210738981U CN 210738981 U CN210738981 U CN 210738981U CN 201920621457 U CN201920621457 U CN 201920621457U CN 210738981 U CN210738981 U CN 210738981U
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- piston rod
- piston
- rod body
- cylinder sleeve
- spring
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Abstract
The utility model discloses a piston rod for cylinder, including inside hollow cylinder sleeve and piston rod body, the middle part on cylinder sleeve top is pegged graft in the activity of piston rod body, and the top and the bottom of cylinder sleeve one side are all fixed to be pegged graft and are had the breather pipe, and the external screw thread has been seted up at the top of piston rod body surface, and the top of piston rod body is provided with elastic connection mechanism, and elastic connection mechanism includes spout, traveller and first spring, and the spout is located piston rod body's top, and first spring is located the inside of spout. The utility model discloses elastic connection mechanism can effectually reduce the rigid collision on work piece and piston rod body top, can carry out effectual protection to the piston rod body, and when piston body back and forth movement and cylinder sleeve inner chamber's top and bottom collided, the rigid collision between cylinder sleeve and the piston body can effectually be alleviated to the second spring, can carry out effectual protection to the piston body, life that can effectual extension piston body.
Description
Technical Field
The utility model relates to a piston rod specifically is a piston rod for cylinder.
Background
The piston rod is a connecting component for supporting the piston to do work, most of the piston rod is applied to an oil cylinder and an air cylinder movement executing component, and the piston rod is a movement component with frequent movement and high technical requirements. The quality of the processing quality directly influences the service life and the reliability of the whole product. The piston rod has high processing requirements and strict requirements on coaxiality and wear resistance.
At present, the piston and the piston ring of the piston rod of current cylinder all are fixed connection, inconvenient change and maintenance to the both ends of piston all are direct and the inner chamber of cylinder contacts, and the bulk density does not have buffer gear, and the frequent back and forth movement of piston rod can lead to like this, and the both ends of piston and the frequent collision in both ends of cylinder inner wall, and this is comparatively serious to the wearing and tearing of piston, can lead to the life reduction of piston rod. Therefore, the piston rod for the cylinder is improved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model relates to a piston rod for cylinder, which comprises a cylinder sleeve and a piston rod body, wherein the cylinder sleeve is hollow inside, the piston rod body is movably inserted in the middle of the top end of the cylinder sleeve, the top and the bottom of one side of the cylinder sleeve are fixedly inserted with vent pipes, the top of the outer surface of the piston rod body is provided with external threads, the top end of the piston rod body is provided with an elastic connecting mechanism, the elastic connecting mechanism comprises a chute, a sliding column and a first spring, the chute is positioned at the top of the piston rod body, the first spring is positioned in the chute, the sliding column is positioned at the top of the first spring, the bottom of the outer surface of the piston rod body is fixedly provided with the piston body, the middle of the outer surface of the piston body is fixedly provided with a piston ring, the edge of the top end of the piston body is movably inserted with, and two second springs are arranged between the fixed block and the piston body and are sleeved on the outer surface of the movable column and positioned at the top and the bottom of the piston body respectively.
As a preferred technical scheme of the utility model, the middle part on piston rod body top is seted up to the spout, the traveller slides and pegs graft in the inside of spout, the top of first spring and the bottom fixed connection of traveller, the bottom of first spring and the tank bottom fixed connection of spout.
As an optimized technical scheme of the utility model, the activity post has six, six the equidistant setting of activity post is in the edge on piston body top.
As a preferred technical scheme of the utility model, the fixed sealing washer that is equipped with in sliding connection department of cylinder sleeve and piston rod body, the surface and the cylinder sleeve fixed connection of sealing washer, the internal surface of sealing washer closely laminates with the surface of piston rod body.
As an optimized technical scheme of the utility model, the ring channel has been seted up at the middle part of piston body surface, the piston ring block is connected in the ring channel.
As a preferred technical scheme of the utility model, the fixed plate that is equipped with in cylinder sleeve's front, four positive edges of fixed plate all fix and are equipped with the through-hole.
The utility model has the advantages that: the piston rod for the cylinder is provided with the external thread and the elastic connecting mechanism at the top end of the piston rod body, thereby facilitating the fixed connection between the piston rod body and a workpiece, meanwhile, when the piston rod body works in a non-fixed connection state, the elastic connection mechanism can effectively reduce the hard collision between the workpiece and the top end of the piston rod body, can effectively protect the piston rod body, and the piston ring is clamped and connected with the piston body, so that the piston ring is convenient to install and replace, and the piston body is provided with a movable column and a second spring, so that when the piston body moves back and forth to collide with the top end and the bottom end of the inner cavity of the cylinder sleeve, the second spring can effectively relieve the hard collision between the cylinder sleeve and the piston body, can carry out effectual protection to the piston body, life that can effectual extension piston body.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a piston rod for an air cylinder according to the present invention;
fig. 2 is a schematic view of a front cross-sectional structure of a cylinder sleeve of a piston rod for a cylinder according to the present invention;
fig. 3 is a schematic diagram of a partial enlarged structure of fig. 2 of a piston rod for an air cylinder according to the present invention;
fig. 4 is a schematic diagram of a partial enlarged structure of fig. 2 of a piston rod for an air cylinder according to the present invention;
fig. 5 is a schematic view of a top-view sectional structure of a piston body of a piston rod for an air cylinder according to the present invention.
In the figure: 1. a cylinder sleeve; 2. a piston rod body; 201. a chute; 202. a traveler; 203. A first spring; 3. a breather pipe; 4. an external thread; 5. a piston body; 6. a piston ring; 7. A movable post; 8. a fixed block; 9. a second spring; 10. a seal ring; 11. a fixing plate; 12. and a through hole.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the piston rod for cylinder of the present invention comprises a cylinder sleeve 1 and a piston rod body 2, the piston rod body 2 is movably inserted in the middle of the top end of the cylinder sleeve 1, the top and the bottom of one side of the cylinder sleeve 1 are both fixedly inserted with a vent pipe 3, the top of the outer surface of the piston rod body 2 is provided with an external thread 4, the top of the piston rod body 2 is provided with an elastic connection mechanism, the elastic connection mechanism comprises a sliding chute 201, a sliding column 202 and a first spring 203, the sliding chute 201 is positioned at the top of the piston rod body 2, the first spring 203 is positioned inside the sliding chute 201, the sliding column 202 is positioned at the top of the first spring 203, the bottom of the outer surface of the piston rod body 2 is fixedly provided with a piston body 5, the middle of the outer surface of the piston body 5 is fixedly provided with a, the both ends of activity post 7 are all fixed and are equipped with fixed block 8, all are provided with second spring 9 between two fixed blocks 8 and piston body 5, and two second springs 9 are all established and are established the surface of activity post 7 and are located the top and the bottom of piston body 5 respectively.
Wherein, the middle part on 2 tops of piston rod body is seted up to spout 201, traveller 202 slides and pegs graft in the inside of spout 201, the top of first spring 203 and the bottom fixed connection of traveller 202, the bottom of first spring 203 and the tank bottom fixed connection of spout 201, when piston rod body 2 carries out the work of non-fixed connection state, elastic connection mechanism can effectually reduce the rigid collision on contact and 2 tops of piston rod body, can carry out effectual protection to piston rod body 2.
Wherein, activity post 7 has six, six activity posts 7 equidistant settings in the edge on 5 tops of piston body, when the top of piston body 5 and bottom respectively with the top and the bottom contact of 1 inner chamber of cylinder sleeve, six activity posts 7 can be with six fixed blocks 8 on the whole atress decomposition, reduce the atress of a single fixed block 8, carry out effectual protection to fixed block 8.
Wherein, the fixed sealing washer 10 that is equipped with in sliding connection department of cylinder sleeve 1 and piston rod body 2, the surface and the cylinder sleeve 1 fixed connection of sealing washer 10, the internal surface of sealing washer 10 and the surface of piston rod body 2 closely laminate, guarantee the leakproofness between cylinder sleeve 1 and the piston rod body 2, avoid the inside gas of cylinder sleeve 1 to leak, and then guarantee the normal work of cylinder sleeve 1 and piston rod body 2.
Wherein, the ring channel has been seted up at the middle part of 5 surfaces of piston body, and 6 block connections of piston ring are in the ring channel, can be convenient for carry out relatively fixed to piston body 5 and piston ring 6 like this, and the convenience is installed and is changed piston ring 6 simultaneously.
Wherein, the fixed plate 11 that is equipped with in front of cylinder sleeve 1, four positive edges of fixed plate 11 all fix and are equipped with through-hole 12, conveniently carry out fixed connection with cylinder sleeve 1 and external mechanism like this, guarantee that cylinder sleeve 1 has a normal operational environment.
When in use, the device is firstly fixed at a proper position by utilizing the bolt group through the fixing plate 11 and the through hole 12 to ensure that the cylinder sleeve 1 has a stable working environment, then the two vent pipes 3 on the cylinder sleeve 1 are respectively connected with an external control valve through air pipes, if the piston rod body 2 is required to be fixedly connected with a workpiece, the piston rod body 2 and the workpiece can be in threaded connection through the external threads 4 on the piston rod body 2, if the piston rod body 2 is required to be in contact with the workpiece, the top of the piston rod body 2 can be directly placed in contact with the top of the sliding column 202, when the piston rod body 2 works in a non-fixed connection state, the elastic connection mechanism can effectively reduce the hard collision between the contact element and the top end of the piston rod body 2, the piston rod body 2 can be effectively protected, when the vent pipe 3 at the bottom of the cylinder sleeve 1, the air pressure at the bottom of the air cylinder sleeve 1 can drive the piston body 5 and the piston rod body 2 to integrally move upwards, when the piston body 5 is about to contact with the top of the inner cavity of the air cylinder sleeve 1, the fixed block 8 at the top can firstly contact with the top of the inner cavity of the air cylinder sleeve 1, at the moment, the piston body 5 continues to move upwards to compress the second spring 9, the elastic force of the second spring 9 on the piston body 5 is gradually increased until the piston body 5 stops moving, when the vent pipe 3 at the top of the air cylinder sleeve 1 admits air, the air pressure at the top of the air cylinder sleeve 1 can drive the piston body 5 and the piston rod body 2 to integrally move downwards, when the piston body 5 is about to contact with the bottom of the inner cavity of the air cylinder sleeve 1, the fixed block 8 at the bottom can firstly contact with the bottom of the inner cavity of the air cylinder sleeve 1, at, the elasticity of second spring 9 to piston body 5 increases gradually until piston body 5 stop motion, and when piston body 5 round trip movement and the top and the bottom collision of 1 inner chamber of cylinder sleeve, second spring 9 can effectually alleviate the rigid collision between cylinder sleeve 1 and the piston body 5, can carry out effectual protection to piston body 5, can effectual extension piston body 5's life.
In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A piston rod for an air cylinder comprises an air cylinder sleeve (1) and a piston rod body (2) which are hollow inside, and is characterized in that the piston rod body (2) is movably inserted in the middle of the top end of the air cylinder sleeve (1), a vent pipe (3) is fixedly inserted in the top and the bottom of one side of the air cylinder sleeve (1), an external thread (4) is arranged on the top of the outer surface of the piston rod body (2), an elastic connecting mechanism is arranged on the top end of the piston rod body (2), the elastic connecting mechanism comprises a sliding groove (201), a sliding column (202) and a first spring (203), the sliding groove (201) is located on the top of the piston rod body (2), the first spring (203) is located inside the sliding groove (201), the sliding column (202) is located on the top of the first spring (203), and a piston body (5) is fixedly arranged at the bottom end of the outer surface of the piston, the fixed piston ring (6) that is equipped with in middle part of piston body (5) surface, the edge activity on piston body (5) top is pegged graft and is had activity post (7) and run through piston body (5), the both ends of activity post (7) are all fixed and are equipped with fixed block (8), two all be provided with second spring (9) between fixed block (8) and piston body (5), two second spring (9) are all established and are established at the surface of activity post (7) and are located the top and the bottom of piston body (5) respectively.
2. The piston rod for the cylinder according to claim 1, wherein the sliding groove (201) is formed in the middle of the top end of the piston rod body (2), the sliding column (202) is slidably inserted into the sliding groove (201), the top end of the first spring (203) is fixedly connected with the bottom end of the sliding column (202), and the bottom end of the first spring (203) is fixedly connected with the bottom of the sliding groove (201).
3. A piston rod for a cylinder according to claim 1, wherein said movable columns (7) are six, and six of said movable columns (7) are disposed at the edge of the top end of the piston body (5) at equal intervals in an arc.
4. The piston rod for the cylinder according to claim 1, wherein a sealing ring (10) is fixedly arranged at the sliding connection position of the cylinder sleeve (1) and the piston rod body (2), the outer surface of the sealing ring (10) is fixedly connected with the cylinder sleeve (1), and the inner surface of the sealing ring (10) is tightly attached to the outer surface of the piston rod body (2).
5. A piston rod for a cylinder according to claim 1, wherein the piston body (5) has an annular groove formed in the middle of the outer surface thereof, and the piston ring (6) is engaged with the annular groove.
6. A piston rod for a cylinder according to claim 1, wherein a fixing plate (11) is fixedly arranged on the front surface of the cylinder sleeve (1), and through holes (12) are fixedly arranged at four corners of the front surface of the fixing plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920621457.2U CN210738981U (en) | 2019-04-30 | 2019-04-30 | Piston rod for cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920621457.2U CN210738981U (en) | 2019-04-30 | 2019-04-30 | Piston rod for cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210738981U true CN210738981U (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920621457.2U Active CN210738981U (en) | 2019-04-30 | 2019-04-30 | Piston rod for cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN210738981U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048119A (en) * | 2021-04-14 | 2021-06-29 | 陈润英 | Buffer hydraulic oil cylinder |
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2019
- 2019-04-30 CN CN201920621457.2U patent/CN210738981U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113048119A (en) * | 2021-04-14 | 2021-06-29 | 陈润英 | Buffer hydraulic oil cylinder |
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