CN220522961U - Automatic oil return device - Google Patents
Automatic oil return device Download PDFInfo
- Publication number
- CN220522961U CN220522961U CN202322241194.1U CN202322241194U CN220522961U CN 220522961 U CN220522961 U CN 220522961U CN 202322241194 U CN202322241194 U CN 202322241194U CN 220522961 U CN220522961 U CN 220522961U
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- China
- Prior art keywords
- standpipe
- oil return
- sliding
- automatic oil
- vertical pipe
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- 238000007789 sealing Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Actuator (AREA)
Abstract
The utility model relates to the technical field of hydraulic cylinders, in particular to an automatic oil return device. Including the hard tube, the equal fixed mounting in both ends of hard tube has the connecting pipe, the top of hard tube is fixed and the intercommunication has the bottom to be open-ended first standpipe, sliding mounting has the body in the first standpipe, the top fixed mounting of body has the ejector pin, can all overlap on the ejector pin and be equipped with first spring, it has first through-hole to run through on the top inner wall of first standpipe, the ejector pin slides and runs through first through-hole, the top of first spring and the top inner wall contact of first standpipe, the top of first standpipe is equipped with the bottom and is open-ended second standpipe, fixed mounting has first binding post on the second standpipe, the bottom of first binding post extends to in the second standpipe and fixed mounting has first contact. Through simple spring action structure to be convenient for carry out automatic oil return to the pneumatic cylinder, prevent that the too high damage hydro-cylinder of oil pressure and pipeline can effectively improve the security.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinders, in particular to an automatic oil return device.
Background
With the continuous development of economy, the demand of people for engineering machinery is continuously increased, a large number of engineering machinery accessories are produced, a hydraulic cylinder is one of the very important types, and the hydraulic cylinder mainly comprises a power mechanism, an executing mechanism, a control mechanism and an auxiliary mechanism through oil serving as a working medium, wherein the control mechanism comprises various control valves and an oil inlet and return path.
However, the existing oil return pipeline of the hydraulic cylinder is found in use, so that the automatic oil return is inconvenient, the pipeline and the oil cylinder are easy to damage when the oil pressure is too high, and potential safety hazards exist.
Disclosure of Invention
In view of the above problems, an object of the present utility model is to: an automatic oil return device is provided to solve the problems set forth in the background art.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the automatic oil return device comprises a hard pipe, connecting pipes are fixedly arranged at two ends of the hard pipe, a first vertical pipe with the bottom being an opening is fixedly arranged at the top of the hard pipe and communicated with the first vertical pipe, a floating body is fixedly arranged in the first vertical pipe, a top end of the floating body is fixedly provided with a push rod, a first spring can be sleeved on the push rod, a first through hole is formed in the inner wall of the top of the first vertical pipe in a penetrating mode, the push rod penetrates through the first through hole in a sliding mode, the top end of the first spring is in contact with the inner wall of the top of the first vertical pipe, a second vertical pipe with the bottom being an opening is arranged at the top end of the first vertical pipe, a first connecting terminal is fixedly arranged in the second vertical pipe and is fixedly provided with a first contact, the top inner wall of the second vertical pipe is fixedly provided with two fixed blocks, a sliding block and a second spring are arranged on the bottom of the first fixed block in a sleeved mode, the sliding block and the second spring are in the first sliding block, the second sliding block is in contact with the second elastic piece, the second elastic piece is in contact with the first elastic piece and the second elastic piece is in a fixed contact with the first elastic piece, and the first elastic piece is in a fixed contact with the first elastic piece and the second elastic piece and the first elastic piece and the elastic piece is in a fixed contact with one side.
In order to facilitate the adjustment of the oil pressure of the automatic return oil when the hydraulic cylinder is opened:
as a further improvement of the above technical scheme: the first standpipe still includes the drum, the fixed cover of drum is established on first standpipe, second standpipe slidable mounting is in the drum, the second spout has all been seted up on the both sides outer wall of second standpipe, fixed mounting has the rack in the second spout, rectangular groove has all been seted up on the both sides inner wall of drum, slidable mounting has the tooth piece in the rectangular groove, one side of tooth piece extends to in the second spout and meshes with the rack, rotate on the tooth piece and install the lead screw.
The beneficial effects of this improvement are: through such setting to be convenient for open the oil pressure of automatic return to the pneumatic cylinder and adjust, thereby can satisfy the in-service use demand, brought very big facility for the use of pneumatic cylinder.
To prevent oil from entering the first standpipe and the second standpipe:
as a further improvement of the above technical scheme: two sealing rings are fixedly arranged on the inner wall of the first vertical pipe, and the sealing rings are slidably sleeved on the floating body.
The beneficial effects of this improvement are: through setting up the sealing washer to can prevent in fluid gets into first standpipe and the second standpipe.
To facilitate the movement of the float by the oil:
as a further improvement of the above technical scheme: the floating body is of a hollow structure, and the bottom end of the floating body is of a hemispherical structure.
The beneficial effects of this improvement are: by the arrangement, the floating body is convenient to be pushed to move by oil.
To prevent the float from escaping the first riser:
as a further improvement of the above technical scheme: third spouts have all been seted up on the both sides inner wall of first standpipe, slidable mounting has first stopper in the third spout, the top welding of first stopper and body.
The beneficial effects of this improvement are: through setting up third spout and first stopper to can carry out spacingly to the body, prevent that the body from breaking away from first standpipe.
In order to prevent the slide block and the second spring from being separated from the first chute:
as a further improvement of the above technical scheme: and a limiting rod is fixedly arranged in the first sliding groove, and the limiting rod penetrates through the sliding block and the second spring in a sliding manner.
The beneficial effects of this improvement are: through setting up the gag lever post to can carry out spacingly to slider and second spring, prevent slider and second spring break away from first spout.
To prevent the tooth block from coming out of the rectangular recess:
as a further improvement of the above technical scheme: a fourth sliding groove is formed in the inner walls of the top and the bottom of the rectangular groove, a second limiting block is slidably mounted in the fourth sliding groove, and the second limiting block is welded with the tooth block.
The beneficial effects of this improvement are: through setting up fourth spout and second stopper to be convenient for carry out spacingly to the tooth piece, prevent that the tooth piece from breaking away from the rectangle recess.
In order to facilitate the screw rod to drive the tooth block to transversely move:
as a further improvement of the above technical scheme: the tooth piece is kept away from one side of second standpipe and has been seted up the circular slot, the one end rotation of lead screw is installed in the circular slot, run through on the one side inner wall that the rectangular groove kept away from the second standpipe has the screw thread through-hole, the lead screw thread runs through the screw thread through-hole.
The beneficial effects of this improvement are: through setting up the circular slot to be convenient for the lead screw drives the tooth piece and carries out lateral shifting.
The beneficial effects of the utility model are as follows: through simple spring action structure to be convenient for carry out automatic oil return to the pneumatic cylinder, prevent that the too high damage hydro-cylinder of oil pressure and pipeline can effectively improve the security.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic top cross-sectional view of the present utility model;
FIG. 3 is an enlarged schematic view of the portion A of FIG. 1 according to the present utility model;
fig. 4 is a schematic view of a three-dimensional assembly structure of a slider, an arc spring and a second contact in the present utility model;
fig. 5 is an enlarged schematic view of the portion B of fig. 1 according to the present utility model.
In the figure: 1. a hard tube; 2. a connecting pipe; 3. a first standpipe; 4. a floating body; 5. a push rod; 6. a first spring; 7. a first through hole; 8. a second standpipe; 9. a first connection terminal; 10. a first contact; 11. a fixed block; 12. a first chute; 13. a slide block; 14. a second spring; 15. an arc-shaped elastic sheet; 16. a second contact; 17. a second connection terminal; 18. a cylinder; 19. a second chute; 20. a rack; 21. rectangular grooves; 22. tooth blocks; 23. and a screw rod.
Detailed Description
In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.
As shown in fig. 1-5, the automatic oil return device comprises a hard pipe 1, connecting pipes 2 are fixedly arranged at two ends of the hard pipe 1, a first vertical pipe 3 with an opening bottom end is fixedly arranged at the top of the hard pipe 1 and communicated with the hard pipe, a floating body 4 is slidably arranged in the first vertical pipe 3, a push rod 5 is fixedly arranged at the top end of the floating body 4, a first spring 6 can be sleeved on the push rod 5, a first through hole 7 penetrates through the inner wall of the top of the first vertical pipe 3, the push rod 5 penetrates through the first through hole 7 in a sliding manner, the top end of the first spring 6 is contacted with the inner wall of the top of the first vertical pipe 3, a second vertical pipe 8 with an opening bottom end is arranged at the top end of the first vertical pipe 3, a first connecting terminal 9 is fixedly arranged on the second vertical pipe 8, the bottom end of the first connecting terminal 9 extends into the second vertical pipe 8 and is fixedly provided with a first contact 10, two fixed blocks 11 are fixedly installed on the inner wall of the top of the second vertical pipe 8, the first contact 10 is located between the two fixed blocks 11, a first sliding groove 12 is formed in the bottom of the fixed block 11, a sliding block 13 and a second spring 14 are slidably installed in the first sliding groove 12, one ends, close to each other, of the two second springs 14 are respectively contacted with the corresponding sliding block 13, the bottoms of the two sliding blocks 13 are welded with the same arc-shaped elastic sheet 15, a second contact 16 is fixedly installed on the inner wall of the arc-shaped elastic sheet 15, the second contact 16 is located under the first contact 10, a second wiring terminal 17 is fixedly installed on one side of the arc-shaped elastic sheet 15, automatic oil return is facilitated to a hydraulic cylinder through a simple spring action structure, the oil cylinder and a pipeline are prevented from being damaged due to excessive oil pressure, safety of the vertical pipe 3 can be effectively improved, the cylinder 18 is fixedly sleeved on the first vertical pipe 3, the second vertical pipe 8 is slidably installed in the cylinder 18, the outer walls of the two sides of the second vertical pipe 8 are provided with second sliding grooves 19, racks 20 are fixedly installed in the second sliding grooves 19, rectangular grooves 21 are formed in the inner walls of the two sides of the cylinder 18, a tooth block 22 is slidably installed in the rectangular grooves 21, one side of the tooth block 22 extends into the second sliding grooves 19 and is meshed with the racks 20, a screw rod 23 is rotatably installed on the tooth block 22, through the arrangement, the hydraulic pressure for automatically opening the hydraulic cylinder is conveniently regulated, the actual use requirement can be met, great convenience is brought to the use of the hydraulic cylinder, two sealing rings are fixedly installed on the inner wall of the first vertical pipe 3, the sealing rings are slidably sleeved on the floating body 4, through the arrangement of the sealing rings, oil can be prevented from entering the first vertical pipe 3 and the second vertical pipe 8, the floating body 4 is of a hollow structure, the bottom end of the floating body 4 is of a hemispherical structure, through the arrangement, the oil can be facilitated to push the floating body 4 to move, the inner walls of the two sides of the first vertical pipe 3 are provided with the third sliding grooves, the first limiting block is arranged in the third sliding grooves in a sliding manner, the first limiting block is welded with the top of the floating body 4, the floating body 4 can be limited through the arrangement of the third sliding grooves and the first limiting block, the floating body 4 is prevented from being separated from the first vertical pipe 3, the limiting rod is fixedly arranged in the first sliding groove 12 and penetrates through the sliding block 13 and the second spring 14 in a sliding manner, the limiting rod is arranged, the sliding block 13 and the second spring 14 can be limited, the sliding block 13 and the second spring 14 are prevented from being separated from the first sliding groove 12, the fourth spout has all been seted up on the top of rectangle recess 21 and the bottom inner wall, sliding mounting has the second stopper in the fourth spout, second stopper and tooth piece 22 welding are through setting up fourth spout and second stopper to be convenient for carry out spacingly to tooth piece 22, prevent that tooth piece 22 from breaking away from rectangle recess 21, the circular slot has been seted up to one side that second standpipe 8 was kept away from to tooth piece 22, the one end rotation of lead screw 23 is installed in the circular slot, run through threaded through hole on one side inner wall that second standpipe 8 was kept away from to rectangle recess 21, the lead screw 23 screw thread runs through threaded through hole, through setting up the circular slot, thereby be convenient for lead screw 23 drive tooth piece 22 and carry out lateral shifting.
The working principle of the utility model is as follows: when in use, the hard pipe 1 is firstly arranged on an oil return pipeline of a hydraulic cylinder through the two connecting pipes 2, after the oil pressure reaches a certain strength, the oil flows from an oil cylinder to the oil return pipe, the pressure of the oil return pipe is increased, the floating body 4 is pushed by the oil to slide into the first vertical pipe 3, the ejector rod 5 is driven to enter the second vertical pipe 8 through the first through hole 7, the first spring 6 is compressed until the ejector rod 5 pushes the arc-shaped elastic sheet 15, the arc-shaped elastic sheet 15 tends to be horizontal, the arc-shaped elastic sheet 15 drives the second contact 16 to move, meanwhile, the two sliding blocks 13 are driven to slide in the corresponding first sliding grooves 12 respectively, the two second springs 14 are compressed until the second contact 16 is contacted with the first contact 10, an electric signal is sent, the hydraulic cylinder control mechanism controls the oil pump to be closed, the oil return pipeline valve is opened for oil return, the oil of the oil cylinder and the oil liquid of the pipeline is lowered, and the hydraulic cylinder executing mechanism is reset through the arrangement, thereby being convenient for automatically returning oil to the hydraulic cylinder, preventing the oil pressure from damaging the oil cylinder and the pipeline due to overhigh oil pressure, effectively improving the safety, when the oil pressure for opening the automatic oil return is required to be regulated, firstly rotating two screw rods 23, driving a tooth block 22 by the screw rods 23 to slide into a rectangular groove 21 and separate from a rack 20, releasing the rear fixation of a second vertical pipe 8, then pulling the second vertical pipe 8, driving the second vertical pipe 8 to slide in a cylinder 18 to be close to or far away from the first vertical pipe 3, regulating the distance between an arc-shaped elastic sheet 15 and a push rod 5, reducing the opening oil pressure of the automatic oil return when the distance between the arc-shaped elastic sheet 15 and the push rod 5 is close, improving the opening oil pressure of the automatic oil return when the distance between the arc-shaped elastic sheet 15 and the push rod 5 is far, and thus being convenient for regulating the oil pressure for opening the automatic oil return of the hydraulic cylinder, thereby being capable of meeting the actual use requirement, brings great convenience to the use of the hydraulic cylinder.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. The foregoing is merely illustrative of the preferred embodiments of the utility model, and it is noted that there is virtually no limit to the specific structure which may be imposed by those skilled in the art without departing from the spirit of the utility model, and that modifications, adaptations, or variations of the foregoing features may be combined in a suitable manner; such modifications, variations and combinations, or the direct application of the inventive concepts and aspects to other applications without modification, are contemplated as falling within the scope of the present utility model.
Claims (8)
1. Automatic oil return device, including hard tube (1), its characterized in that: the utility model discloses a hard tube (1) with a plurality of sliding blocks, including hard tube (1) and fixed mounting, connecting pipe (2) are all fixed at both ends of hard tube (1), the top of hard tube (1) is fixed and the intercommunication has bottom to be open-ended first standpipe (3), first standpipe (8) are gone up to sliding mounting has body (4), the top fixed mounting of body (4) has ejector pin (5), can all overlap on ejector pin (5) and be equipped with first spring (6), it has first through-hole (7) to run through on the top inner wall of first standpipe (3), ejector pin (5) are slided and are run through first through-hole (7), the top of first spring (6) is contacted with the top inner wall of first standpipe (3), the top of first standpipe (3) is equipped with bottom to be open-ended second standpipe (8), fixed mounting has first binding post (9) on second standpipe (8), the bottom of first binding post (9) extends to in second standpipe (8) and installs first contact (10), fixed mounting has first slider (11) on the inner wall of second standpipe (8), two fixed mounting blocks (11) are equipped with first slider (12) and two slider (12) are located between first slider (12), one ends of the two second springs (14) close to each other are respectively contacted with the corresponding sliding blocks (13), the bottoms of the two sliding blocks (13) are welded with the same arc-shaped elastic sheet (15), a second contact (16) is fixedly arranged on the inner wall of the arc-shaped elastic sheet (15), the second contact (16) is positioned under the first contact (10), and a second wiring terminal (17) is fixedly arranged on one side of the arc-shaped elastic sheet (15).
2. The automatic oil return device according to claim 1, characterized in that: the first vertical pipe (3) further comprises a cylinder (18), the cylinder (18) is fixedly sleeved on the first vertical pipe (3), the second vertical pipe (8) is slidably mounted in the cylinder (18), second sliding grooves (19) are formed in the outer walls of the two sides of the second vertical pipe (8), racks (20) are fixedly mounted in the second sliding grooves (19), rectangular grooves (21) are formed in the inner walls of the two sides of the cylinder (18), tooth blocks (22) are slidably mounted in the rectangular grooves (21), one side of each tooth block (22) extends into the corresponding second sliding groove (19) and is meshed with the corresponding rack (20), and screw rods (23) are rotatably mounted on the corresponding tooth blocks (22).
3. The automatic oil return device according to claim 1, characterized in that: two sealing rings are fixedly arranged on the inner wall of the first vertical pipe (3), and the sealing rings are slidably sleeved on the floating body (4).
4. The automatic oil return device according to claim 1, characterized in that: the floating body (4) is of a hollow structure, and the bottom end of the floating body (4) is of a hemispherical structure.
5. The automatic oil return device according to claim 1, characterized in that: third sliding grooves are formed in the inner walls of the two sides of the first vertical pipe (3), a first limiting block is slidably mounted in the third sliding grooves, and the first limiting block is welded with the top of the floating body (4).
6. The automatic oil return device according to claim 1, characterized in that: a limiting rod is fixedly arranged in the first sliding groove (12), and the limiting rod penetrates through the sliding block (13) and the second spring (14) in a sliding mode.
7. The automatic oil return device according to claim 2, characterized in that: a fourth sliding groove is formed in the inner walls of the top and the bottom of the rectangular groove (21), a second limiting block is slidably mounted in the fourth sliding groove, and the second limiting block is welded with the tooth block (22).
8. The automatic oil return device according to claim 2, characterized in that: the tooth piece (22) is kept away from one side of second standpipe (8) and has been seted up the circular slot, the one end rotation of lead screw (23) is installed in the circular slot, run through on the inner wall of one side that second standpipe (8) was kept away from in rectangle recess (21), lead screw (23) screw thread runs through the screw thread through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322241194.1U CN220522961U (en) | 2023-08-21 | 2023-08-21 | Automatic oil return device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322241194.1U CN220522961U (en) | 2023-08-21 | 2023-08-21 | Automatic oil return device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220522961U true CN220522961U (en) | 2024-02-23 |
Family
ID=89937694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322241194.1U Active CN220522961U (en) | 2023-08-21 | 2023-08-21 | Automatic oil return device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220522961U (en) |
-
2023
- 2023-08-21 CN CN202322241194.1U patent/CN220522961U/en active Active
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