CN202371236U - Simple energy storage safety valve - Google Patents

Simple energy storage safety valve Download PDF

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Publication number
CN202371236U
CN202371236U CN2011205628199U CN201120562819U CN202371236U CN 202371236 U CN202371236 U CN 202371236U CN 2011205628199 U CN2011205628199 U CN 2011205628199U CN 201120562819 U CN201120562819 U CN 201120562819U CN 202371236 U CN202371236 U CN 202371236U
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CN
China
Prior art keywords
piston
energy storage
decompression
liquid container
cavity
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2011205628199U
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Chinese (zh)
Inventor
陈振虎
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陈振虎
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Priority to CN2011205628199U priority Critical patent/CN202371236U/en
Application granted granted Critical
Publication of CN202371236U publication Critical patent/CN202371236U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a simple energy storage safety valve, which includes a hollow valve body, wherein a pressure reduction piston and an energy storage piston are arranged in cavity inside the valve body, and can move back and forth along the cavity; the cavity is sequentially divided into a pressure reduction liquid cavity, a gas cavity, and an energy storage liquid cavity through the pressure reduction piston and the energy storage piston; a first spring is arranged between the pressure reduction piston and the energy storage piston; one end of the first spring is propped against the pressure reduction piston on the end surface facing to one side of the energy storage piston; the other end of the first spring is propped against the energy storage piston on the end surface facing to one side of the pressure reduction piston; the pressure reduction liquid cavity is provided with an oil inlet communicated with a high-pressure oil delivery pipeline; and a limit structure is arranged at the pressure reduction liquid cavity at the position propped against the pressure reduction piston. The simple energy storage safety valve has the benefits of simple structure, convenience for manufacture and low cost.

Description

Simple and easy accumulation of energy safety valve
Technical field
The utility model relates to a kind of safety valve, and more particularly, the utility model relates to a kind of simple and easy accumulation of energy safety valve that fork truck has the accumulation of energy function simultaneously that is used for.
Background technique
The working pressure of hydraulic mechanism when work, usually needs the switch operating state generally all than higher; Hydraulic mechanism is when the switch operating state, because the flip-flop of pressure transfers crest from trough in the utmost point the short time; Bring intense impact for the hydraulic pressure element, instantaneous pressure can make hydraulic element destructive the damage possibly occur well beyond the rated working pressure of hydraulic mechanism; Shorten the working life of hydraulic mechanism greatly, produce bigger noise, befouling environment simultaneously.In order to overcome this defective, hydraulic mechanism usually adopts with safety valve and links together, and when overpressure, the safety valve action refluxes the hydraulic oil of overpressure, lets surge pressure maintain under the safety pressure.
Like Patent Office of the People's Republic of China in disclosed a CN2314186Y patent application on April 14th, 1999; This patent name is " deadweight safety valve "; This deadweight safety valve comprises pressure regulating screw, Safety valve body, pressure adjusting spring, top, steel ball, high pressure oilhole etc., is provided with damping hole at the front end of high pressure oilhole.This deadweight safety valve complex structure; Manufacture cost is high, and poor stability is though can solve the problem of going to pot property of hydraulic element damage; But before the safety valve action; The high pressure oil too fast problem of boosting still can't solve, and can not effectively be alleviated the intense impact that hydraulic element bring, the noise problem that can't avoid the fatigability of hydraulic element to damage and bring.
Before solving the safety valve action, the high pressure oil too fast problem of boosting, the application number that on October 8th, 2011 proposed to Patent Office of the People's Republic of China is 201120380376.1 patent application; This patent name is " an accumulation of energy safety valve "; This accumulation of energy safety valve comprises hollow valve body, is provided with first piston, second piston and the 3rd piston that can move around along cavity in the cavity in the valve body respectively successively, and first piston, second piston and the 3rd piston are divided into first liquid container, second liquid container, air chamber, the 3rd liquid container with cavity respectively successively; The first piston and second piston are connected as a single entity through coupling shaft; First piston is provided with through hole, and through hole is communicated with first liquid container and second liquid container, is provided with first spring between second piston and the 3rd piston; One end of first spring is connected to second piston on the end face of the 3rd piston one side; The other end of first spring is connected to the 3rd piston on the end face of second piston, one side, is provided with the first pressurize structure in first liquid container, is provided with the second pressurize structure in the 3rd liquid container; On the wall of the chamber of second liquid container, be provided with the filler opening that communicates with the high-pressure pipeline road; Cavity is provided with annular groove at the second position of piston place, and the width of annular groove is less than the width of second piston, and the bottom surface of annular groove is provided with the oil outlet that communicates with return line; The chamber wall of air chamber is provided with the vent with atmosphere, and the 3rd liquid container is provided with the oil inlet and outlet that communicates with the high-pressure pipeline road on the chamber wall away from the 3rd piston.Before though this accumulation of energy safety valve can solve safety valve action well, the high pressure oil too fast problem of boosting, structure is also too complicated.The machining accuracy of hydraulic pressure components and parts is high, structure of every increase, and its processing cost will increase a lot.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned defective, and a kind of simple and easy accumulation of energy safety valve simple in structure, easily manufactured, with low cost is provided.
The purpose of the utility model is achieved in that a kind of simple and easy accumulation of energy safety valve; Comprise hollow valve body; Be respectively equipped with the decompression piston and the energy storage piston that can move around along cavity in the cavity in the valve body, decompression piston and energy storage piston are divided into reduce pressure liquid container, air chamber, accumulation of energy liquid container with cavity respectively successively, are provided with first spring between decompression piston and the decompression piston; One end of first spring is connected to decompression piston on the end face of energy storage piston one side; The other end of first spring is connected to energy storage piston on the end face of decompression piston one side, is provided with the pressurize structure in the accumulation of energy liquid container, and cavity is provided with annular groove in the position of decompression piston; The width of annular groove is less than the width of decompression piston; The bottom surface of annular groove is provided with the oil outlet that communicates with return line, and the chamber wall of air chamber is provided with the vent with atmosphere, and the accumulation of energy liquid container is provided with the oil inlet and outlet that communicates with the high-pressure pipeline road on the chamber wall away from energy storage piston; Said decompression liquid container is provided with the filler opening that communicates with the high-pressure pipeline road, and the decompression liquid container is provided with limit structure in the position that approaches decompression piston.Because the decompression liquid container is provided with limit structure in the position that approaches decompression piston; Can make things convenient for the installing and locating of decompression piston like this; Make the filler opening of valve body can utilize the original processing technology passage of valve body simultaneously; Reduce the manufacturing procedure of valve body, simplify the processing technology of valve body, reduce the processing cost of valve body.
Said limit structure is an annular protrusion, and annular protrusion is positioned on the chamber wall of decompression liquid container, and annular protrusion and valve body are connected as a single entity, and the internal diameter of annular protrusion is less than the external diameter of decompression piston.Annular protrusion plays position-limiting action to decompression piston, makes the spacing processing technology that can simplify valve body with annular protrusion, reduces the manufacture cost of valve body.
The beneficial effect of the utility model is: simple in structure, easily manufactured, with low cost.
Description of drawings
Fig. 1 is a kind of structure cross-sectional schematic of the utility model;
Fig. 2 is the A-A cross-sectional schematic among Fig. 1;
Fig. 3 is the B-B cross-sectional schematic among Fig. 1.
Among the figure: 1, valve body, 11, annular protrusion, 12, step, 2, decompression piston, 21, first locating column, 3, second spring; 4, cavity, 41, annular oil groove, 411, oil inlet and outlet, 42, oil outlet, 43, annular groove, 44, filler opening; 45, air chamber, 46, the accumulation of energy liquid container, 47, the ring-shaped ventilation groove, 48, vent, 49, the decompression liquid container, 5, first spring; 6, energy storage piston, 61, acrosome, 62, annular half slot, 63, second locating column, 7, screw plug, 8, one-way valve.
Embodiment
Pass through specific embodiment below, and combine Figure of description that the technological scheme of the utility model is further specified:
Embodiment: a kind of simple and easy accumulation of energy safety valve; Like Fig. 1, shown in Figure 2, comprise hollow valve body 1, the cavity 4 in the valve body 1 runs through valve body 1; One end of cavity 4 is provided with the filler opening 44 that is used to connect the high-pressure pipeline road, and the other end of cavity 4 is provided with the screw plug 7 that is used to seal; Be respectively equipped with the decompression piston 2 and energy storage piston 6 that can move around along cavity 4 in the cavity 4; Be respectively equipped with a plurality of annular half slot 62 of equidistant placement on the circumferential surface of decompression piston 2 and energy storage piston 6, decompression piston 2 is divided into decompression liquid container 49, air chamber 45, accumulation of energy liquid container 46 with cavity 4 respectively successively with energy storage piston 6; Decompression liquid container 49 is provided with the annular protrusion 11 that is connected as a single entity with valve body 1 in the position that approaches decompression piston 2, the internal diameter of annular protrusion 11 is less than the external diameter of decompression piston 2; An end that is provided with first spring, 5, the first springs 5 between decompression piston 2 and the energy storage piston 6 is connected to decompression piston 2 on the end face of energy storage piston 6 one sides, and the other end of first spring 5 is connected to energy storage piston 6 on the end face of decompression piston 2 one sides; Energy storage piston 6 is provided with the cylindrical acrosome 61 that is connected as a single entity towards the end face of accumulation of energy liquid container 46.Cavity 4 is provided with annular groove 43 in the position of decompression piston 2, and the width of annular groove 43 is less than the width of decompression piston 2, and the bottom surface of annular groove 43 is provided with the oil outlet 42 that communicates with return line.The chamber wall of air chamber 45 is provided with the vent 48 with atmosphere, and the chamber wall of air chamber 45 is provided with ring-shaped ventilation groove 47 in vent 48 positions.As shown in Figure 3; Accumulation of energy liquid container 46 is provided with the oil inlet and outlet 411 that communicates with the high-pressure pipeline road on the chamber wall away from energy storage piston 6; Oil inlet and outlet 411 is near an end diameter of accumulation of energy liquid container 46 diameter less than the other end; The chamber wall of accumulation of energy liquid container 46 is provided with the one-way valve 8 that is connected in parallel with oil inlet and outlet 411 in a side of oil inlet and outlet 411; One end of one-way valve 8 pipelines communicates with the other end of oil inlet and outlet 411, and the other end of one-way valve 8 pipelines communicates with accumulation of energy liquid container 46, and the flow direction of one-way valve 8 is 411 the other end from accumulation of energy liquid container 46 to oil inlet and outlet.Like Fig. 1, shown in Figure 2, the chamber wall of accumulation of energy liquid container 46 is provided with annular oil groove 41 in the position of oil inlet and outlet 411, and the other end of said one-way valve 8 pipelines communicates with annular oil groove 41.Cavity 4 end diameter near energy storage piston 6 between decompression piston 2 and energy storage piston 6 forms step 12 greater than the end diameter near decompression piston 2; On the end face of air chamber 45 1 sides, also be provided with second spring 3 at energy storage piston 6; One end of second spring 3 is connected to energy storage piston 6 on the end face of air chamber 45 1 sides, and the other end of second spring 3 is connected on the step 12.The external diameter of first spring 5 is less than the internal diameter of second spring 3, and the other end of first spring 5 is positioned at second spring 3.Decompression piston 2 is provided with first locating column, 21, the first locating columns 21 and is positioned at first spring 5 towards the end face axial center of air chamber 45 1 sides; Said energy storage piston 6 is provided with second locating column, 63, the second locating columns 63 and is positioned at first spring 5 towards the end face axial center of air chamber 45 1 sides.
Above-described embodiment is a kind of preferred version of the utility model, is not the utility model is done any pro forma restriction, under the prerequisite that does not exceed the technological scheme that claim puts down in writing, also has other variant and remodeling.
Make the content of detailed description in this specification, belong to the those skilled in the art known prior art.

Claims (2)

1. simple and easy accumulation of energy safety valve; Comprise hollow valve body; Be respectively equipped with the decompression piston and the energy storage piston that can move around along cavity in the cavity in the valve body, decompression piston and energy storage piston are divided into reduce pressure liquid container, air chamber, accumulation of energy liquid container with cavity respectively successively, are provided with first spring between decompression piston and the decompression piston; One end of first spring is connected to decompression piston on the end face of energy storage piston one side; The other end of first spring is connected to energy storage piston on the end face of decompression piston one side, is provided with the pressurize structure in the accumulation of energy liquid container, and cavity is provided with annular groove in the position of decompression piston; The width of annular groove is less than the width of decompression piston; The bottom surface of annular groove is provided with the oil outlet that communicates with return line, and the chamber wall of air chamber is provided with the vent with atmosphere, and the accumulation of energy liquid container is provided with the oil inlet and outlet that communicates with the high-pressure pipeline road on the chamber wall away from energy storage piston; It is characterized in that: said decompression liquid container is provided with the filler opening that communicates with the high-pressure pipeline road, and the decompression liquid container is provided with limit structure in the position that approaches decompression piston.
2. simple and easy accumulation of energy safety valve according to claim 1 is characterized in that: said limit structure is an annular protrusion, and annular protrusion is positioned on the chamber wall of decompression liquid container, and annular protrusion and valve body are connected as a single entity, and the internal diameter of annular protrusion is less than the external diameter of decompression piston.
CN2011205628199U 2011-12-29 2011-12-29 Simple energy storage safety valve Expired - Fee Related CN202371236U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011205628199U CN202371236U (en) 2011-12-29 2011-12-29 Simple energy storage safety valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011205628199U CN202371236U (en) 2011-12-29 2011-12-29 Simple energy storage safety valve

Publications (1)

Publication Number Publication Date
CN202371236U true CN202371236U (en) 2012-08-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011205628199U Expired - Fee Related CN202371236U (en) 2011-12-29 2011-12-29 Simple energy storage safety valve

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148029A (en) * 2013-03-28 2013-06-12 长城汽车股份有限公司 Transmission and energy accumulator assembly thereof
CN113217482A (en) * 2021-04-09 2021-08-06 燕山大学 Piston type energy accumulator with built-in one-way valve

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148029A (en) * 2013-03-28 2013-06-12 长城汽车股份有限公司 Transmission and energy accumulator assembly thereof
CN103148029B (en) * 2013-03-28 2015-07-01 长城汽车股份有限公司 Transmission and energy accumulator assembly thereof
CN113217482A (en) * 2021-04-09 2021-08-06 燕山大学 Piston type energy accumulator with built-in one-way valve

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120808

Termination date: 20141229

EXPY Termination of patent right or utility model