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One-way buffer valve

A buffer valve, one-way technology, applied in the direction of valve details, control valves, safety valves, etc., can solve the problems of damage to structure and component stability, impact, etc., and achieve the effect of no maintenance, high durability, and simple structure

Pending Publication Date: 2020-10-02
ZHEJIANG CANAAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a one-way buffer valve, which can effectively reduce the flow rate and flow rate of the pressure oil, and solve the problem that the pressure oil flow rate is too fast to impact the structure or parts of the mechanical equipment in the prior art when the solenoid valve is opened, causing damage Problems with the stability of structures and components, prolonging the service life of mechanical equipment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 as figure 1 As shown, this embodiment provides a one-way buffer valve, which includes a valve body 1. A buffer chamber 4 with a larger diameter is opened in the middle of the valve body 1. In this embodiment, the top and side walls of the valve body 1 are respectively opened with The oil inlet 2 and the oil outlet 9 are processed in the hole mode. The oil inlet 2 is arranged vertically, and the bottom end of the oil inlet 2 is opposite to the buffer chamber 4 and communicates with the top of the buffer chamber 4 through the transition chamber 401 . The oil outlet 9 is arranged horizontally, and the inner end of the oil outlet 9 (with the side located in the valve body 1 as the inside) communicates with the transition chamber 401. From then on, the oil inlet 2, the oil outlet 9, and the buffer chamber 4 three are connected. A part of the bottom end of the oil inlet 2 is set as the first reducing chamber 201 , the diameter of the first reducing chamber 201 dec...

Embodiment 2

[0046] Embodiment 2 The difference between this embodiment and Embodiment 1 is: as figure 1 As shown, the second reducing chamber 301 and the third reducing chamber 701 are distributed on opposite side walls of the buffer chamber 4 , and the third reducing chamber 701 is located higher than the second reducing chamber 301 . Through this structural arrangement, it can be ensured that the second reducing chamber 301 and the third reducing chamber 701 do not interfere with each other, preventing pressure oil from surging in the buffer chamber 4 and impacting the buffer chamber 4, and ensuring the buffering effect while protecting the structure of the buffer chamber 4.

Embodiment 3

[0047] Embodiment 3 The difference between this embodiment and the above embodiments is that in order to improve the speed limiting effect, in this embodiment, the diameters of the first buffer passage 3 and the second buffer passage 7 are smaller than the oil inlet 2 and the oil outlet 9, To implement pre-deceleration and deceleration during the drainage process, so that the subsequent deceleration and deceleration can be carried out step by step in combination with the first reducing chamber 201, the buffer chamber 4 and other structures to achieve stable control. Of course, in some occasions, it may also be considered to increase the number of the first buffer channel 3 and the second buffer pipe for use, so as to increase the buffering speed of the pressure oil while decelerating the limit, thereby improving the buffering efficiency.

[0048] To sum up, the present invention provides a one-way buffer valve, which can effectively control the flow rate and duration of pressur...

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Abstract

The invention provides a one-way buffer valve, and belongs to the field of valves. The one-way buffer valve comprises a valve body, an oil inlet, an oil outlet and a buffer cavity are formed in the valve body, the buffer cavity is formed in the middle part of the valve body, the bottom of the oil inlet communicates with the buffer cavity through a reducing cavity, and a large opening of the reducing cavity is upward and is provided with a steel ball. A piston adaptive to the buffer cavity is arranged in the buffer cavity, and a top rod penetrating through a small-diameter cavity of the reducing cavity is arranged at the top of the piston and is in clearance fit with the steel ball; and the oil inlet communicates with the buffer cavity below the bottom of the piston through first buffer channels. The oil outlet communicates with the small-diameter cavity of the reducing cavity / the buffer cavity above the piston / the communication position of the buffer cavity and the buffer cavity abovethe piston. The flow and duration of pressure oil passing through are controlled by a deceleration and limited mode, then the driving operation process of a pressing part gradually speeding up due tohydraulic pressure is controlled, and the harmful effect on mechanical equipment due to sudden speeding up and excessive accelerated speed is prevented.

Description

technical field [0001] The invention relates to the field of valves, in particular to a one-way buffer valve. Background technique [0002] In mechanical equipment using hydraulic oil, such as a hydraulic hoist, the opening and closing of the pipeline is usually controlled by controlling a solenoid valve installed on the pipeline where the pressure oil is located. When the pressure oil is discharged, the solenoid valve opens, and the pressure oil gushes out under the pressure. The initial flow rate of the pressure oil through the solenoid valve is too fast, on the one hand, it is easy to cause the pressure oil to impact the mechanical equipment; The rapid start, balance and stability of the controlled parts are poor, and some controlled parts are also easy to collide with other structures or parts of the mechanical equipment during the rapid start process. If things go on like this, the structure or parts on the mechanical equipment will be damaged or loose. What's more, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B13/02F16K15/04F16K15/18F16K17/28F16K17/34F16K31/122
CPCF15B13/021F15B13/027F16K15/04F16K17/285F16K17/34F16K31/1223F16K15/1823
Inventor 梅胜楷李挺吴武通
Owner ZHEJIANG CANAAN TECH