CN214788317U - Piston connection anti-loosening structure for hydraulic cylinder - Google Patents
Piston connection anti-loosening structure for hydraulic cylinder Download PDFInfo
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- CN214788317U CN214788317U CN202120849053.6U CN202120849053U CN214788317U CN 214788317 U CN214788317 U CN 214788317U CN 202120849053 U CN202120849053 U CN 202120849053U CN 214788317 U CN214788317 U CN 214788317U
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- piston rod
- block
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- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 230000006978 adaptation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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Abstract
The utility model discloses a piston connection anti loosening structure for pneumatic cylinder, including cylinder, piston and piston rod slide inside the cylinder, and the piston is located the piston rod below, piston rod end center department installs hollow block, and hollow block one side is equipped with the arc piece and passes hollow block one side and slide inside hollow block, the piston top is equipped with the fixed establishment that is used for fixed arc piece, and piston rod inside seted up the inner chamber and with hollow block intercommunication, the inside vertical slip of hollow block has the montant and passes the piston rod bottom and slide inside the inner chamber, and the bottom is equipped with the canceling release mechanical system who is used for the montant that resets in the hollow block, the inner chamber is inside still to be equipped with the moving mechanism who is used for removing the montant, and the inside coupling mechanism who is used for connecting the arc piece that is equipped with of hollow block. The utility model discloses can make piston and piston rod connect, and connect and closely can not become flexible, and then improve the piston connection's of this pneumatic cylinder stability.
Description
Technical Field
The utility model relates to a pneumatic cylinder technical field especially relates to a piston connection anti loosening structure for pneumatic cylinder.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating movement, it can save speed-reducing device, and has no transmission gap, and its movement is smooth, so that it can be extensively used in hydraulic systems of various machines, in which the piston and piston rod are important component parts of hydraulic cylinder.
At present, the piston and the piston rod are connected through threads, and the piston rod are easy to loosen due to the adoption of the connection mode when the hydraulic cylinder is used for a long time, so that the use safety is reduced, and therefore, a piston connection anti-loosening structure for the hydraulic cylinder is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a piston connection anti-loosening structure for a hydraulic cylinder.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a piston connection anti loosening structure for pneumatic cylinder, includes cylinder, piston and piston rod slide inside the cylinder, and the piston is located the piston rod below, the terminal center department of piston rod installs hollow block, and hollow block one side is equipped with the arc piece and passes hollow block one side and slide in hollow block inside, the piston top is equipped with the fixed establishment who is used for fixed arc piece, and piston rod inside seted up the inner chamber and with hollow block intercommunication, the inside vertical slip of hollow block has the montant and passes the piston rod bottom and slide in the inner chamber inside, and the bottom is equipped with the canceling release mechanical system who is used for the montant that resets in the hollow block, the inner chamber inside still is equipped with the moving mechanism who is used for removing the montant, and the inside coupling mechanism who is used for connecting the arc piece that is equipped with of hollow block.
Preferably, the surface of the piston rod is sleeved with a lining and slides in the cylinder barrel, and the top end of the lining penetrates through the center of the top end of the cylinder barrel.
Preferably, the fixing mechanism comprises a first groove, the first groove is provided with a piston top center and is matched with the hollow block, a second groove is formed in the piston and is communicated with the first groove, and the second groove is matched with the arc-shaped block.
Preferably, the moving mechanism comprises a second connecting rod, the second connecting rod horizontally slides inside the inner cavity, the tail end of the second connecting rod is installed at the top end of one side of the vertical rod, a circular groove is formed in one side of the surface of the piston rod, a pull ring slides inside the circular groove, and the top end of the second connecting rod penetrates through one side of the piston rod and is fixedly connected to the center of one side of the pull ring.
Preferably, coupling mechanism includes the head rod, and head rod horizontal slip is inside hollow block, head rod top fixed connection is in arc piece one side center department, and the terminal fixed connection of head rod is in montant one side.
Preferably, canceling release mechanical system includes the slide, and slide horizontal installation bottom in hollow block, the inside slider that slides of slide, and slider one end and the inside one end of slide install same first spring, the slider top is installed in the montant bottom.
Preferably, canceling release mechanical system includes the gag lever post, and gag lever post horizontal fixed connection in the inside symmetrical side of hollow block, the gag lever post passes the montant and slides inside the montant, and the gag lever post surface has cup jointed the second spring, the second spring both ends are installed respectively in hollow block inside one side and montant one side.
The utility model has the advantages that:
1. the utility model discloses, when needs are installed piston and piston rod, only need make hollow block and first recess be located the coplanar, and make arc piece and second recess align, insert inside first recess hollow block after that, when the arc piece just begins to contact the piston, the piston can have an extrusion force to the arc piece, make the arc piece toward hollow block inside removal, then the arc piece drives the head rod and removes, the head rod drives the montant and removes, the montant drives the slider and removes and extrudees first spring, make first spring produce elasticity, then when arc piece and second recess are located same horizontal plane, the elasticity that first spring produced can be gone into the second recess to the arc piece, thereby can make piston and piston rod connect, and connect and closely can not become flexible, and then the stability of the piston connection of this pneumatic cylinder has been improved.
2. The utility model discloses, when needs are dismantled piston and piston rod, only need stimulate the pull ring and drive the second connecting rod and remove, the second connecting rod removes and drives the montant removal again, the montant removes and drives the head rod removal again, the head rod removes and drives the arc piece again and shifts out inside the second recess, thereby can remove the connection between piston and the piston rod, can easily dismantle between piston and the piston rod after that, the pull ring slides in the circular slot inside in addition, avoided the pull ring to produce the influence to pneumatic cylinder work, and then improved the installation of the piston of this pneumatic cylinder and the efficiency of dismantlement.
3. The utility model discloses, when needs are installed piston and piston rod, only need make hollow block and first recess be located the coplanar, and make arc piece and second recess align, insert inside first recess hollow block after that, when the arc piece just begins to contact the piston, the piston can have an extrusion force to the arc piece, make the arc piece toward hollow block inside removal, then the arc piece drives the head rod and removes, the head rod drives the montant and extrudees the second spring, make the second spring produce elasticity, then when arc piece and second recess are located same horizontal plane, the elasticity that the second spring produced can be gone into the second recess to the arc piece, thereby can make piston and piston rod connect, and connect and closely can not become flexible, and then the piston connection efficiency of this pneumatic cylinder has been improved.
Drawings
Fig. 1 is a schematic structural view of a piston connection anti-loosening structure for a hydraulic cylinder according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a piston and a piston rod of a piston connection anti-loosening structure for a hydraulic cylinder according to embodiment 1 of the present invention;
fig. 3 is a cross-sectional view of the inside of a hollow block and a piston rod of a piston connecting anti-loosening structure for a hydraulic cylinder according to embodiment 1 of the present invention;
fig. 4 is a cross-sectional view of the inside of a hollow block and a piston rod of a piston connection locking structure for a hydraulic cylinder according to embodiment 2 of the present invention.
In the figure: 1 cylinder barrel, 2 pistons, 3 piston rods, 4 bushings, 5 hollow blocks, 6 first grooves, 7 second grooves, 8 vertical rods, 9 first connecting rods, 10 arc-shaped blocks, 11 inner cavities, 12 second connecting rods, 13 circular grooves, 14 pull rings, 15 slide ways, 16 slide blocks, 17 first springs, 18 limiting rods and 19 second springs.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
Example 1
Referring to fig. 1 to 3, a piston coupling anti-loosening structure for a hydraulic cylinder includes a cylinder tube 1, a piston 2, and a piston rod 3, the piston 2 and the piston rod 3 sliding inside the cylinder tube 1, the piston 2 is positioned at the lowest part of the piston rod 3, a hollow block 5 is arranged at the center of the tail end of the piston rod 3, an arc-shaped block 10 is arranged on one side of the hollow block 5 and passes through one side of the hollow block 5 to slide in the hollow block 5, a fixing mechanism for fixing the arc-shaped block 10 is arranged at the top end of the piston 2, an inner cavity 11 is arranged inside the piston rod 3 and is communicated with the hollow block 5, a vertical rod 8 vertically slides inside the hollow block 5 and penetrates through the bottom of the piston rod 3 to slide inside the inner cavity 11, and the bottom is equipped with the canceling release mechanical system that is used for restoring to the throne montant 8 in the hollow block 5, and the inside moving mechanism that is used for removing montant 8 that still is equipped with of inner chamber 11, and hollow block 5 is inside to be equipped with the coupling mechanism who is used for connecting arc 10.
In this embodiment, the surface of the piston rod 3 is further sleeved with a bushing 4 and slides inside the cylinder barrel 1, and the top end of the bushing 4 passes through the center of the top end of the cylinder barrel 1.
In this embodiment, fixing mechanism includes first recess 6, and first recess 6 seted up piston 2 top center department and with hollow block 5 looks adaptations, piston 2 is inside seted up second recess 7 and communicates with first recess 6, and second recess 7 and 10 looks adaptations of arc piece.
In this embodiment, the moving mechanism includes the second connecting rod 12, and the second connecting rod 12 horizontal slip is inside inner chamber 11, and the second connecting rod 12 end is installed on 8 one side tops of montant, and piston rod 3 surface one side has seted up circular slot 13, and the inside slip of circular slot 13 has pull ring 14, and the 12 tops of second connecting rod pass piston rod 3 one side and fixed connection in pull ring 14 one side center department.
In this embodiment, the connecting mechanism includes a first connecting rod 9, the first connecting rod 9 horizontally slides inside the hollow block 5, the top end of the first connecting rod 9 is fixedly connected to the center of one side of the arc block 10, and the end of the first connecting rod 9 is fixedly connected to one side of the vertical rod 8.
In this embodiment, the reset mechanism includes slide 15, and slide 15 horizontal installation has slider 16 in hollow block 5 bottom, and the inside slip of slide 15 has slider 16, and same first spring 17 is installed to slider 16 one end and the inside one end of slide 15, and the slider 16 top is installed in the 8 bottoms of montant.
The working principle of the embodiment is as follows: in practical use, when the piston 2 and the piston rod 3 need to be installed, only the hollow block 5 and the first groove 6 need to be located in the same plane, and the arc-shaped block 10 and the second groove 7 are aligned, then the hollow block 5 is inserted into the first groove 6, when the arc-shaped block 10 just starts to contact the piston 2, the piston 2 can have an extrusion force on the arc-shaped block 10, so that the arc-shaped block 10 moves towards the inside of the hollow block 5, the arc-shaped block 10 drives the first connecting rod 9 to move, the first connecting rod 9 drives the vertical rod 8 to move, the vertical rod 8 drives the sliding block 16 to move and extrude the first spring 17, so that the first spring 17 generates an elastic force, when the arc-shaped block 10 and the second groove 7 are located in the same horizontal plane, the elastic force generated by the first spring 17 can eject the arc-shaped block 10 into the second groove 7, so that the piston 2 and the piston rod 3 can be connected, and the connection is tight and cannot be loosened, and then the stability that the piston 2 of this pneumatic cylinder is connected has been improved, when needs are dismantled piston 2 and piston rod 3, only need stimulate pull ring 14 to drive second connecting rod 12 and remove, second connecting rod 12 removes and drives montant 8 removal again, montant 8 removes and drives head rod 9 removal again, head rod 9 removes and drives arc piece 10 again and shifts out inside second recess 7, thereby can relieve the connection between piston 2 and the piston rod 3, can easily dismantle between piston 2 and the piston rod 3 after that, pull ring 14 slides inside circular slot 13 in addition, the pull ring 14 has been avoided producing the influence to pneumatic cylinder work, and then the efficiency of the installation and the dismantlement of the piston of this pneumatic cylinder has been improved.
Example 2
Referring to fig. 1, 2 and 4, a piston coupling anti-loosening structure for a hydraulic cylinder includes a cylinder tube 1, a piston 2 and a piston rod 3, the piston 2 and the piston rod 3 are slid inside the cylinder tube 1, the piston 2 is positioned at the lowest part of the piston rod 3, a hollow block 5 is arranged at the center of the tail end of the piston rod 3, an arc-shaped block 10 is arranged on one side of the hollow block 5 and passes through one side of the hollow block 5 to slide in the hollow block 5, a fixing mechanism for fixing the arc-shaped block 10 is arranged at the top end of the piston 2, an inner cavity 11 is arranged inside the piston rod 3 and is communicated with the hollow block 5, a vertical rod 8 vertically slides inside the hollow block 5 and penetrates through the bottom of the piston rod 3 to slide inside the inner cavity 11, and the bottom is equipped with the canceling release mechanical system that is used for restoring to the throne montant 8 in the hollow block 5, and the inside moving mechanism that is used for removing montant 8 that still is equipped with of inner chamber 11, and hollow block 5 is inside to be equipped with the coupling mechanism who is used for connecting arc 10.
In this embodiment, the surface of the piston rod 3 is further sleeved with a bushing 4 and slides inside the cylinder barrel 1, and the top end of the bushing 4 passes through the center of the top end of the cylinder barrel 1.
In this embodiment, fixing mechanism includes first recess 6, and first recess 6 seted up piston 2 top center department and with hollow block 5 looks adaptations, piston 2 is inside seted up second recess 7 and communicates with first recess 6, and second recess 7 and 10 looks adaptations of arc piece.
In this embodiment, the moving mechanism includes the second connecting rod 12, and the second connecting rod 12 horizontal slip is inside inner chamber 11, and the second connecting rod 12 end is installed on 8 one side tops of montant, and piston rod 3 surface one side has seted up circular slot 13, and the inside slip of circular slot 13 has pull ring 14, and the 12 tops of second connecting rod pass piston rod 3 one side and fixed connection in pull ring 14 one side center department.
In this embodiment, the connecting mechanism includes a first connecting rod 9, the first connecting rod 9 horizontally slides inside the hollow block 5, the top end of the first connecting rod 9 is fixedly connected to the center of one side of the arc block 10, and the end of the first connecting rod 9 is fixedly connected to one side of the vertical rod 8.
In this embodiment, the reset mechanism includes the gag lever post 18, and 18 horizontal fixed connections of gag lever post are in the inside symmetrical side of hollow block 5, and gag lever post 18 passes montant 8 and slides inside montant 8, and 18 surfaces on the gag lever post have cup jointed second spring 19, and second spring 19 both ends are installed respectively in the inside one side of hollow block 5 and montant 8 one side.
The working principle of the embodiment is as follows: in practical use, when the piston 2 and the piston rod 3 need to be installed, the hollow block 5 and the first groove 6 are only required to be positioned in the same plane, and the arc-shaped block 10 and the second groove 7 are aligned, the hollow block 5 is then inserted inside the first recess 6, and, when the arc-shaped block 10 is just coming into contact with the piston 2, the piston 2 will have a pressing force on the arc block 10, so that the arc block 10 moves towards the inside of the hollow block 5, the arc block 10 drives the first connecting rod 9 to move, the first connecting rod 9 drives the vertical rod 8 to move and extrude the second spring 19, so that the second spring 19 generates elasticity, when the arc block 10 and the second groove 7 are located in the same horizontal plane, the elastic force generated by the second spring 19 will spring the arc block 10 into the second groove 7, thereby can make piston 2 and piston rod 3 connect, and connect closely can not become flexible, and then improved the stability that the piston 2 of this pneumatic cylinder connects.
Having shown and described the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as exemplary and not limiting in any way, since the scope of the invention is defined 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 and are therefore not to be embraced therein by any reference numerals in the claims.
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 (7)
1. The utility model provides a piston connection anti loosening structure for pneumatic cylinder, includes cylinder (1), piston (2) and piston rod (3), its characterized in that, piston (2) and piston rod (3) slide in cylinder (1) inside, and piston (2) are located piston rod (3) below, the terminal center department of piston rod (3) installs hollow block (5), and hollow block (5) one side is equipped with arc piece (10) and passes hollow block (5) one side and slide in hollow block (5) inside, piston (2) top is equipped with the fixed establishment who is used for fixed arc piece (10), and piston rod (3) inside seted up inner chamber (11) and hollow block (5) intercommunication, the inside vertical slip of hollow block (5) has montant (8) and passes piston rod (3) bottom and slide in inner chamber (11) inside, and the bottom is equipped with the canceling release mechanical system who is used for restoring to the montant (8) in hollow block (5), the inner cavity (11) is also internally provided with a moving mechanism for moving the vertical rod (8), and the hollow block (5) is internally provided with a connecting mechanism for connecting the arc-shaped block (10).
2. The piston connection anti-loosening structure for the hydraulic cylinder is characterized in that a bushing (4) is sleeved on the surface of the piston rod (3) and slides inside the cylinder barrel (1), and the top end of the bushing (4) penetrates through the center of the top end of the cylinder barrel (1).
3. The piston connection anti-loosening structure for the hydraulic cylinder according to claim 2, wherein the fixing mechanism comprises a first groove (6), the first groove (6) is formed in the center of the top end of the piston (2) and matched with the hollow block (5), a second groove (7) is formed in the piston (2) and communicated with the first groove (6), and the second groove (7) is matched with the arc-shaped block (10).
4. The piston connection anti-loosening structure for the hydraulic cylinder according to claim 3, wherein the moving mechanism comprises a second connecting rod (12), the second connecting rod (12) horizontally slides inside the inner cavity (11), the end of the second connecting rod (12) is installed at the top end of one side of the vertical rod (8), a circular groove (13) is formed in one side of the surface of the piston rod (3), a pull ring (14) slides inside the circular groove (13), and the top end of the second connecting rod (12) penetrates through one side of the piston rod (3) and is fixedly connected to the center of one side of the pull ring (14).
5. The piston connection anti-loosening structure for the hydraulic cylinder as claimed in claim 4, characterized in that the connecting mechanism comprises a first connecting rod (9), the first connecting rod (9) slides horizontally inside the hollow block (5), the top end of the first connecting rod (9) is fixedly connected to the center of one side of the arc-shaped block (10), and the end of the first connecting rod (9) is fixedly connected to one side of the vertical rod (8).
6. The piston connection anti-loosening structure for the hydraulic cylinder according to claim 5, wherein the resetting mechanism comprises a slide way (15), the slide way (15) is horizontally installed at the bottom inside the hollow block (5), a sliding block (16) slides inside the slide way (15), one end of the sliding block (16) and one end inside the slide way (15) are provided with the same first spring (17), and the top end of the sliding block (16) is installed at the bottom of the vertical rod (8).
7. The piston connection anti-loosening structure for the hydraulic cylinder as claimed in claim 5, wherein the reset mechanism comprises a limiting rod (18), the limiting rod (18) is horizontally and fixedly connected to a symmetrical side surface inside the hollow block (5), the limiting rod (18) penetrates through the vertical rod (8) and slides inside the vertical rod (8), a second spring (19) is sleeved on the surface of the limiting rod (18), and two ends of the second spring (19) are respectively installed on one side inside the hollow block (5) and one side of the vertical rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120849053.6U CN214788317U (en) | 2021-04-23 | 2021-04-23 | Piston connection anti-loosening structure for hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120849053.6U CN214788317U (en) | 2021-04-23 | 2021-04-23 | Piston connection anti-loosening structure for hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214788317U true CN214788317U (en) | 2021-11-19 |
Family
ID=78689045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120849053.6U Expired - Fee Related CN214788317U (en) | 2021-04-23 | 2021-04-23 | Piston connection anti-loosening structure for hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214788317U (en) |
-
2021
- 2021-04-23 CN CN202120849053.6U patent/CN214788317U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211119 |