CN111928042A - Automatic pressure relief system convenient for quick connector to be plugged - Google Patents
Automatic pressure relief system convenient for quick connector to be plugged Download PDFInfo
- Publication number
- CN111928042A CN111928042A CN202010832012.6A CN202010832012A CN111928042A CN 111928042 A CN111928042 A CN 111928042A CN 202010832012 A CN202010832012 A CN 202010832012A CN 111928042 A CN111928042 A CN 111928042A
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- pipe
- oil
- pressure relief
- oil inlet
- inlet pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L37/00—Couplings of the quick-acting type
- F16L37/62—Couplings of the quick-acting type pneumatically or hydraulically actuated
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
- F15B13/08—Assemblies of units, each for the control of a single servomotor only
Abstract
The invention discloses an automatic pressure relief system convenient for plugging and unplugging a quick connector, which comprises a first hydraulic valve and a second hydraulic valve, the working oil inlet A of the first hydraulic valve is connected with one end of a first oil inlet pipe, the other end of the first oil inlet pipe is connected with one end of a first hydraulic cylinder, the working oil return port B of the first hydraulic valve is connected with one end of a first oil return pipe, the other end of the first oil return pipe is connected with the other end of the first hydraulic cylinder, the first oil inlet pipe and the first oil return pipe are both provided with a first quick connector, the main oil return port T of the first hydraulic valve is connected with a first main oil return pipe, when the first quick connector and the second quick connector need to be pulled out, high-pressure oil in the first oil inlet pipe and the second oil inlet pipe is conveyed to a pressure relief oil tank through a pressure relief main pipe through a pressure relief valve, realize that the first fluid pressure release work that advances oil pipe and second, be convenient for realize first quick-operation joint and second quick-operation joint's the work of pulling out.
Description
Technical Field
The invention relates to the field of hydraulic equipment, in particular to an automatic pressure relief system convenient for a quick connector to be plugged and unplugged.
Background
At present, plastic plates are widely applied, such as ABS or HIPS plates used on refrigerator plastic molding equipment or automobile interior molding equipment, and hydraulic equipment is needed in the processing process of the plastic plates.
When the existing hydraulic equipment needs to extract the first quick joint and the second quick joint in the using process, because the oil pressure in the first oil inlet pipe and the second oil inlet pipe is large, the pressure can not be relieved, and when the quick joints are plugged, the stress at the joints is too large, so that the plugging is difficult abnormally, and the working efficiency is influenced.
Chinese patent publication No. CN205159763U discloses an intelligent automatic docking device with visual judgment for quickly plugging and unplugging a male-female connector, which comprises a pipeline docking system, a visual judgment system, a triaxial displacement system, an electrical control system, a quick plugging and unplugging female connector, and a quick plugging and unplugging male connector. The visual judgment system judges the specific position of the quick-plugging male joint for the triaxial displacement system, the triaxial displacement system moves the pipeline butt joint system to a certain position of the quick-plugging male joint, when the butt joint quick-plugging male joint is at the same axial position, the triaxial displacement system drives the pipeline butt joint system, the quick-plugging female joint is pressed down to be sleeved on the quick-plugging male joint, the pipeline butt joint system locks the quick-plugging female joint, and a self-sealing valve on the quick-plugging male joint is opened to complete automatic butt joint of the pipeline. The invention cancels manual operation, realizes intelligent judgment and automatic butt joint of the quick plug-in connector, and improves the production efficiency. Compared with the invention, the oil pressure relief device has the problems that when the first quick joint and the second quick joint need to be pulled out, pressure relief cannot be carried out due to large oil pressure in the first oil inlet pipe and the second oil inlet pipe, and when the quick joints are pulled out and inserted, the force on the joints is too large, so that the pulling out and inserting are abnormal and difficult, and the working efficiency is influenced.
Disclosure of Invention
The invention aims to provide an automatic pressure relief system convenient for pulling and inserting a quick connector, and aims to solve the problems that when the first quick connector and a second quick connector need to be pulled out in the use process of the existing hydraulic equipment, pressure relief cannot be carried out due to large oil pressure in a first oil inlet pipe and a second oil inlet pipe, and when the quick connectors are pulled and inserted, the connectors are stressed excessively, so that the pulling and inserting are abnormal and difficult, and the working efficiency is influenced.
The purpose of the invention can be realized by the following technical scheme:
an automatic pressure relief system convenient for a quick connector to be plugged comprises a first hydraulic valve and a second hydraulic valve, wherein a working oil inlet A of the first hydraulic valve is connected with one end of a first oil inlet pipe, the other end of the first oil inlet pipe is connected with one end of a first hydraulic cylinder, a working oil return opening B of the first hydraulic valve is connected with one end of a first oil return pipe, the other end of the first oil return pipe is connected with the other end of the first hydraulic cylinder, first quick connectors are arranged on the first oil inlet pipe and the first oil return pipe, and a main oil return opening T of the first hydraulic valve is connected with a first main oil return pipe;
the utility model discloses a hydraulic pressure relief valve, including first pressure release pipe, second pressure release pipe, pressure release.
As a further scheme of the invention: the first main oil return pipe and the second main oil return pipe are respectively connected with a main oil tank, oil discharged from a main oil return port T of the first hydraulic valve and oil discharged from a main oil return port T of the second hydraulic valve are transported to the main oil tank, and the oil return purpose is achieved.
As a further scheme of the invention: the first pressure relief pipe is provided with the pipeline plug with the junction of first advance oil pipe, the junction that the second pressure relief pipe advances oil pipe with the second also is provided with the pipeline plug, advance oil pipe with first advance oil pipe and second through the pipeline plug respectively with first pressure relief pipe and second pressure relief pipe and be connected, when first quick-operation joint and second quick-operation joint need be extracted, advance high-pressure fluid in oil pipe through the relief valve with first advance oil pipe and second and advance oil pipe and carry the pressure release oil tank through the pressure release house steward, realize that first advance oil pipe and second advance oil pipe's fluid pressure release work, be convenient for realize first quick-operation joint and second quick-operation joint's extraction work.
As a further scheme of the invention: the main oil inlets P of the first hydraulic valve and the second hydraulic valve are respectively connected with the two branch pipes of the main oil inlet pipe, so that in the working process, oil can enter the first hydraulic valve and the second hydraulic valve from the two branch pipes of the main oil inlet pipe respectively, and a foundation is provided for the normal operation of the first hydraulic cylinder and the second hydraulic cylinder.
The invention has the beneficial effects that:
according to the hydraulic control system, oil enters a first hydraulic valve and a second hydraulic valve from two branch pipes of a main oil inlet pipe respectively, the oil enters the first oil inlet pipe and the second oil inlet pipe through working oil inlets A of the first hydraulic valve and the second hydraulic valve respectively, then enters a first hydraulic cylinder and a second hydraulic cylinder through the first oil inlet pipe and the second oil inlet pipe, meanwhile, the oil in the first hydraulic cylinder and the second hydraulic cylinder enters the first hydraulic valve and the second hydraulic valve through a first oil return pipe and a second oil return pipe, the oil discharged from a main oil return port T of the first hydraulic valve and the oil discharged from a main oil return port T of the second hydraulic valve are transported into the main oil tank, the oil return purpose is achieved, and a piston rod inside the hydraulic cylinder is driven to work; when the first quick joint and the second quick joint need to be pulled out, high-pressure oil in the first oil inlet pipe and the second oil inlet pipe is conveyed into the pressure relief oil tank through the pressure relief valve through the pressure relief header pipe, so that the oil pressure relief work of the first oil inlet pipe and the second oil inlet pipe is realized, and the pulling-out work of the first quick joint and the second quick joint is convenient to realize.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic view of an automatic pressure relief system for facilitating the plugging and unplugging of a quick connector according to the present invention.
In the figure: 1. a first hydraulic valve; 2. a second hydraulic valve; 3. a main oil inlet pipe; 4. a main fuel tank; 5. a second main oil return pipe; 6. a first pressure relief tube; 7. a pipe plug; 8. a first oil inlet pipe; 9. a first quick coupling; 10. a first hydraulic cylinder; 11. a pressure relief valve; 12. a first oil return pipe; 13. a second pressure relief tube; 14. a second oil inlet pipe; 15. a second quick coupling; 16. a second hydraulic cylinder; 17. a pressure relief oil tank; 18. a second oil return pipe; 19. a pressure relief manifold; 20. a first main oil return pipe.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an automatic pressure relief system convenient for a quick connector to be plugged comprises a first hydraulic valve 1 and a second hydraulic valve 2, wherein a working oil inlet a of the first hydraulic valve 1 is connected with one end of a first oil inlet pipe 8, the other end of the first oil inlet pipe 8 is connected with one end of a first hydraulic cylinder 10, a working oil return port B of the first hydraulic valve 1 is connected with one end of a first oil return pipe 12, the other end of the first oil return pipe 12 is connected with the other end of the first hydraulic cylinder 10, first quick connectors 9 are arranged on the first oil inlet pipe 8 and the first oil return pipe 12, and a main oil return port T of the first hydraulic valve 1 is connected with a first main oil return pipe 20; the working oil inlet A of the second hydraulic valve 2 is connected with one end of a second oil inlet pipe 14, the other end of the second oil inlet pipe 14 is connected with one end of a second hydraulic cylinder 16, the working oil return port B of the second hydraulic valve 2 is connected with one end of a second oil return pipe 18, the other end of the second oil return pipe 18 is connected with the other end of the second hydraulic cylinder 16, a second quick connector 15 is arranged on each of the second oil inlet pipe 14 and the second oil return pipe 18, a main oil return port T of the second hydraulic valve 2 is connected with a second main oil return pipe 5, one end of a first pressure relief pipe 6 is connected with a first oil inlet pipe 8, one end of a second pressure relief pipe 13 is connected with the second oil inlet pipe 14, the other ends of the first pressure relief pipe 6 and the second pressure relief pipe 13 are connected with a main oil inlet P of a pressure relief valve 11, the main oil return port T of the pressure relief valve 11 is connected with one end of a pressure relief main pipe 19, the other, during operation, oil enters the first hydraulic valve 1 and the second hydraulic valve 2 from two branch pipes of the main oil inlet pipe 3 respectively, the oil enters the first oil inlet pipe 8 and the second oil inlet pipe 14 through working oil inlets A of the first hydraulic valve 1 and the second hydraulic valve 2 respectively, and then enters the first hydraulic cylinder 10 and the second hydraulic cylinder 16 through the first oil inlet pipe 8 and the second oil inlet pipe 14, meanwhile, the oil in the first hydraulic cylinder 10 and the second hydraulic cylinder 16 enters the first hydraulic valve 1 and the second hydraulic valve 2 through the first oil return pipe 12 and the second oil return pipe 18, and the oil discharged from a main oil return port T of the first hydraulic valve 1 and the oil discharged from a main oil return port T of the second hydraulic valve 2 are transported to the main oil tank 4, so that an oil return purpose is achieved, and a piston rod inside the hydraulic cylinder is driven to operate; when the first quick coupling 9 and the second quick coupling 15 need to be pulled out, the high-pressure oil in the first oil inlet pipe 8 and the second oil inlet pipe 14 is conveyed to the pressure relief oil tank 17 through the pressure relief valve 11 through the pressure relief header pipe 19, so that the oil pressure relief work of the first oil inlet pipe 8 and the second oil inlet pipe 14 is realized, and the pulling-out work of the first quick coupling 9 and the second quick coupling 15 is convenient to realize.
The first main oil return pipe 20 is connected with the second main oil return pipe 5 through the main oil tank 4 respectively, and oil discharged from the main oil return port T of the first hydraulic valve 1 and oil discharged from the main oil return port T of the second hydraulic valve 2 are transported to the main oil tank 4, so that the oil return purpose is achieved.
The first pressure release pipe 6 is provided with pipeline plug 7 with the first junction that advances oil pipe 8, the second pressure release pipe 13 also is provided with pipeline plug 7 with the second junction that advances oil pipe 14, advance oil pipe 14 with first oil pipe 8 and second through pipeline plug 7 respectively with first pressure release pipe 6 and second pressure release pipe 13 and be connected, when first quick-operation joint 9 and second quick-operation joint 15 need be extracted, advance high-pressure fluid in oil pipe 14 with first oil pipe 8 and second through relief valve 11 and carry pressure release oil tank 17 through pressure release house steward 19, realize that first oil pipe 8 and second advance the oil pressure release work of oil pipe 14, be convenient for realize the work of extracting of first quick-operation joint 9 and second quick-operation joint 15.
The main oil inlet P of the first hydraulic valve 1 and the second hydraulic valve 2 is respectively connected with two branch pipes of the main oil inlet pipe 3, so that in the working process, oil can enter the first hydraulic valve 1 and the second hydraulic valve 2 from the two branch pipes of the main oil inlet pipe 3 respectively, and a foundation is provided for the normal operation of the first hydraulic cylinder 10 and the second hydraulic cylinder 16.
The working principle of the invention is as follows: when the hydraulic cylinder works, oil enters a first hydraulic valve 1 and a second hydraulic valve 2 from two branch pipes of a main oil inlet pipe 3 respectively, the oil enters a first oil inlet pipe 8 and a second oil inlet pipe 14 through working oil inlets A of the first hydraulic valve 1 and the second hydraulic valve 2 respectively, and then enters a first hydraulic cylinder 10 and a second hydraulic cylinder 16 through the first oil inlet pipe 8 and the second oil inlet pipe 14, meanwhile, the oil in the first hydraulic cylinder 10 and the second hydraulic cylinder 16 enters the first hydraulic valve 1 and the second hydraulic valve 2 through a first oil return pipe 12 and a second oil return pipe 18, the oil discharged from a main oil return port T of the first hydraulic valve 1 and the oil discharged from a main oil return port T of the second hydraulic valve 2 are transported to a main oil tank 4, the oil return purpose is realized, and a piston rod in the hydraulic cylinder is driven to work; when the first quick coupling 9 and the second quick coupling 15 need to be pulled out, the high-pressure oil in the first oil inlet pipe 8 and the second oil inlet pipe 14 is conveyed to the pressure relief oil tank 17 through the pressure relief valve 11 through the pressure relief header pipe 19, so that the oil pressure relief work of the first oil inlet pipe 8 and the second oil inlet pipe 14 is realized, and the pulling-out work of the first quick coupling 9 and the second quick coupling 15 is convenient to realize.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (4)
1. The automatic pressure relief system convenient for the quick connector to be plugged comprises a first hydraulic valve (1) and a second hydraulic valve (2), and is characterized in that a working oil inlet A of the first hydraulic valve (1) is connected with one end of a first oil inlet pipe (8), the other end of the first oil inlet pipe (8) is connected with one end of a first hydraulic cylinder (10), a working oil return opening B of the first hydraulic valve (1) is connected with one end of a first oil return pipe (12), the other end of the first oil return pipe (12) is connected with the other end of the first hydraulic cylinder (10), the first oil inlet pipe (8) and the first oil return pipe (12) are both provided with a first quick connector (9), and a main oil return opening T of the first hydraulic valve (1) is connected with a first main oil return pipe (20);
the working oil inlet A of the second hydraulic valve (2) is connected with one end of a second oil inlet pipe (14), the other end of the second oil inlet pipe (14) is connected with one end of a second hydraulic cylinder (16), a working oil return opening B of the second hydraulic valve (2) is connected with one end of a second oil return pipe (18), the other end of the second oil return pipe (18) is connected with the other end of the second hydraulic cylinder (16), a second quick joint (15) is arranged on each of the second oil inlet pipe (14) and the second oil return pipe (18), a main oil return opening T of the second hydraulic valve (2) is connected with a second main oil return pipe (5), one end of a first pressure relief pipe (6) is connected with a first oil inlet pipe (8), one end of a second pressure relief pipe (13) is connected with the second oil inlet pipe (14), the other ends of the first pressure relief pipe (6) and the second pressure relief pipe (13) are connected with a main oil inlet P of the second hydraulic cylinder (11), a main oil return port T of the pressure release valve (11) is connected with one end of a pressure release main pipe (19), and the other end of the pressure release main pipe (19) is connected with a pressure release oil tank (17).
2. The automatic pressure relief system for facilitating the plugging and unplugging of a quick connector according to claim 1, wherein the first main oil return pipe (20) and the second main oil return pipe (5) are respectively connected with a main oil tank (4).
3. The automatic pressure relief system convenient for the pulling and inserting of the quick connector as claimed in claim 1, wherein a pipeline plug (7) is arranged at the joint of the first pressure relief pipe (6) and the first oil inlet pipe (8), and a pipeline plug (7) is arranged at the joint of the second pressure relief pipe (13) and the second oil inlet pipe (14).
4. The automatic pressure relief system convenient for the pulling and inserting of the quick connector as claimed in claim 1, wherein the main oil inlets P of the first hydraulic valve (1) and the second hydraulic valve (2) are respectively connected with two branch pipes of the main oil inlet pipe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010832012.6A CN111928042B (en) | 2020-08-18 | 2020-08-18 | Automatic pressure relief system convenient for quick connector to be plugged |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010832012.6A CN111928042B (en) | 2020-08-18 | 2020-08-18 | Automatic pressure relief system convenient for quick connector to be plugged |
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| Publication Number | Publication Date |
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| CN111928042A true CN111928042A (en) | 2020-11-13 |
| CN111928042B CN111928042B (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010832012.6A Active CN111928042B (en) | 2020-08-18 | 2020-08-18 | Automatic pressure relief system convenient for quick connector to be plugged |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417907A (en) * | 2021-05-14 | 2021-09-21 | 天津市天锻压力机有限公司 | Auxiliary oil way pressure relief system for handling internal residual pressure of quick-insertion device and allowing plugging and unplugging |
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| CN102873849A (en) * | 2011-07-11 | 2013-01-16 | 博创机械股份有限公司 | Hydraulic loose core circuit having pressure release function |
| CN102011762B (en) * | 2010-12-16 | 2013-05-29 | 广州华研精密机械有限公司 | Backpressure and rapid pressure-relieving control device for hydraulic cylinder |
| CN205331103U (en) * | 2016-01-27 | 2016-06-22 | 陕西中大机械集团有限责任公司 | A hydraulic system for controlling paver aircraft bonnet and ceiling lift |
| CN105465100B (en) * | 2014-09-12 | 2017-06-27 | 上海船厂船舶有限公司 | Open the cabin the pressure experimental device and pressure test method of oil cylinder |
| CN105909575B (en) * | 2016-06-28 | 2017-10-31 | 安徽东海机床制造有限公司 | A kind of bending method of efficient bender |
| CN111379752A (en) * | 2020-04-16 | 2020-07-07 | 无锡贝斯特精机股份有限公司 | Hydraulic clamp compression control system |
-
2020
- 2020-08-18 CN CN202010832012.6A patent/CN111928042B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011762B (en) * | 2010-12-16 | 2013-05-29 | 广州华研精密机械有限公司 | Backpressure and rapid pressure-relieving control device for hydraulic cylinder |
| CN102873849A (en) * | 2011-07-11 | 2013-01-16 | 博创机械股份有限公司 | Hydraulic loose core circuit having pressure release function |
| CN105465100B (en) * | 2014-09-12 | 2017-06-27 | 上海船厂船舶有限公司 | Open the cabin the pressure experimental device and pressure test method of oil cylinder |
| CN205331103U (en) * | 2016-01-27 | 2016-06-22 | 陕西中大机械集团有限责任公司 | A hydraulic system for controlling paver aircraft bonnet and ceiling lift |
| CN105909575B (en) * | 2016-06-28 | 2017-10-31 | 安徽东海机床制造有限公司 | A kind of bending method of efficient bender |
| CN111379752A (en) * | 2020-04-16 | 2020-07-07 | 无锡贝斯特精机股份有限公司 | Hydraulic clamp compression control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417907A (en) * | 2021-05-14 | 2021-09-21 | 天津市天锻压力机有限公司 | Auxiliary oil way pressure relief system for handling internal residual pressure of quick-insertion device and allowing plugging and unplugging |
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| CN111928042B (en) | 2022-03-29 |
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