CN215171174U

CN215171174U - Anti-blocking hydraulic valve

Info

Publication number: CN215171174U
Application number: CN202121739954.6U
Authority: CN
Inventors: 任孔明; 白红侠; 任春雷
Original assignee: Anhui Shifeng Oil Pressure Technology Co ltd
Current assignee: Anhui Shifeng Oil Pressure Technology Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2021-12-14
Anticipated expiration: 2031-07-29

Abstract

The utility model discloses an anti-blocking hydraulic valve, which comprises a valve body and an anti-blocking mechanism; a valve body: an oil inlet is formed in the left side of the outer arc surface of the valve body, an oil outlet is formed in the right side of the outer arc surface of the valve body, the oil inlet and the oil outlet are arranged in a vertically staggered mode, a gasket is arranged at the lower end of the interior of the valve body and located between the oil inlet and the oil outlet, a valve core matched with the gasket is connected to the interior of the valve body in a sliding mode, and a first spring is movably sleeved at the upper end of the valve core; anti-blocking mechanism: the lower end of the anti-blocking mechanism is connected with the inner wall of the valve body in a sliding way; wherein: still include the valve gap, valve gap threaded connection is in the upper end opening part of valve body, and the middle part of valve gap is provided with and prevents stifled mechanism complex through-hole, should prevent blockking up the hydrovalve, can filter hydraulic oil, can also clean the filter screen, guarantees filtration efficiency, and then prevents that the valve body from blockking up.

Description

Anti-blocking hydraulic valve

Technical Field

The utility model relates to a hydrovalve technical field specifically is a prevent blockking up hydrovalve.

Background

The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of a pressure distribution valve, is usually used in combination with an electromagnetic pressure distribution valve, can be used for remotely controlling the on-off of oil, gas and water pipeline systems of a hydropower station, is an element used for controlling the liquid pressure, flow and direction in hydraulic transmission, is called a pressure control valve for controlling the pressure, is called a flow control valve for controlling the flow, is called a direction control valve for controlling the on-off and flow direction, and is classified according to functions: the overflow valve for overload protection is called safety valve, when the system is in failure and the pressure rises to a limit value which can cause damage, the valve port can be opened to overflow to ensure the safety of the system, and when the internal blockage of the overflow valve causes that the pressure cannot be relieved in time, accidents can easily occur, but the existing hydraulic overflow valve mostly does not have the function of releasing blockage.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a prevent blockking up hydrovalve, conveniently regulate and control the maximum pressure in the oil circuit, can filter hydraulic oil simultaneously, can also clean the filter screen, guarantee filtration efficiency, and then prevent that the valve body from blockking up, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: an anti-blocking hydraulic valve comprises a valve body and an anti-blocking mechanism;

a valve body: an oil inlet is formed in the left side of the outer arc surface of the valve body, an oil outlet is formed in the right side of the outer arc surface of the valve body, the oil inlet and the oil outlet are arranged in a vertically staggered mode, a gasket is arranged at the lower end of the interior of the valve body and located between the oil inlet and the oil outlet, a valve core matched with the gasket is connected to the interior of the valve body in a sliding mode, and a first spring is movably sleeved at the upper end of the valve core;

anti-blocking mechanism: the lower end of the anti-blocking mechanism is connected with the inner wall of the valve body in a sliding way;

wherein: still include the valve gap, valve gap threaded connection is in the upper end opening part of valve body, and the middle part of valve gap is provided with prevents stifled mechanism complex through-hole, conveniently regulates and control the maximum pressure in the oil circuit, can filter hydraulic oil simultaneously, can also clean the filter screen, guarantees filtration efficiency, and then prevents that the valve body from blockking up.

Further, the lower surface middle part of case evenly is provided with the projection, the edge of packing ring evenly be provided with projection complex oilhole, the lower extreme of projection is the toper, can dredge the oilhole that evenly sets up in packing ring edge, prevents to block up.

Further, equal threaded connection has the lead screw in the threaded hole that valve gap edge symmetry set up, and the lower extreme of two lead screws rotates with the commentaries on classics hole that adjusting plate edge set up respectively to be connected, the inner wall sliding connection of adjusting plate and valve body and with the upper end contact of first spring, conveniently regulate and control the maximum pressure in the oil circuit.

Further, prevent stifled mechanism and include sleeve, sealing washer and filter screen, sleeve sliding connection is inside the slide opening that the case middle part set up, and telescopic lower extreme is provided with the filter screen, and filter screen upper surface edge is provided with the sealing washer, and the sealing washer contacts with the lower surface edge of packing ring, and telescopic upper end passes the through-hole at the circular port at regulating plate middle part and valve gap middle part in proper order and has the nut at upper end threaded connection, can filter hydraulic oil, prevents that the inside impurity of hydraulic oil from blockking up the valve body.

Further, telescopic inside activity is pegged graft and is had the inserted bar, and the upper end activity cover of inserted bar is equipped with the second spring, and the lower extreme and the telescopic upper end contact of second spring, the lower extreme of inserted bar are provided with the clamp plate, and the clamp plate is located the lower extreme of filter screen, conveniently seals the lower extreme of valve body when the blowdown.

Further, the upper surface edge of clamp plate evenly is provided with the doctor-bar with the contact of the outer cambered surface of filter screen, conveniently cleans the filter screen.

Furthermore, a sewage draining outlet is formed in the center of the lower surface of the valve body, and a sealing bolt is connected to the inner thread of the sewage draining outlet, so that sewage draining is facilitated.

Compared with the prior art, the beneficial effects of the utility model are that: this prevent blockking up hydrovalve has following benefit:

1. the overflow mouth of outside oil circuit passes through pipeline and the left oil inlet intercommunication of valve body, and when the oil pressure of oil circuit was greater than the elasticity of first spring, hydraulic oil upwards jack-up with the projection of case lower extreme after the filter screen of sleeve lower extreme filters, until the oilhole separation with packing ring edge, during reseing, first spring promotes the case and moves down, and the projection of case lower extreme can dredge the oilhole that evenly sets up in packing ring edge, prevents to block up.

2. Impurity in the hydraulic oil is remained to the inside bottom of valve body after the filter screen filters, presses the inserted bar downwards this moment, makes the second spring shrink, and the clamp plate moves down to the lower extreme of oil inlet, takes off sealing bolt this moment, conveniently discharges the inside impurity of hydraulic oil, rotates the inserted bar simultaneously, drives the clamp plate and rotates, and the doctor-bar of clamp plate upper surface edge can be cleaned the filter screen, guarantees the filter effect of filter screen.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal cross-sectional structure of the present invention;

fig. 3 is an enlarged schematic view of the a position of the present invention.

In the figure: the anti-blocking valve comprises a valve body 1, an anti-blocking mechanism 2, a sleeve 21, an inserted rod 22, a sealing ring 23, a filter screen 24, a pressing plate 25, an oil inlet 3, an oil outlet 4, a gasket 5, a valve core 6, a convex column 61, a valve cover 7, a first spring 8, an adjusting plate 9, a lead screw 10, a screw cap 11, a second spring 12, a sealing bolt 13 and a scraping blade 14.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present embodiment provides a technical solution: an anti-blocking hydraulic valve comprises a valve body 1 and an anti-blocking mechanism 2;

valve body 1: an oil inlet 3 is arranged on the left side of the outer arc surface of the valve body 1, an oil outlet 4 is arranged on the right side of the outer arc surface of the valve body 1, the oil inlet 3 and the oil outlet 4 are arranged in a vertically staggered manner, a gasket 5 is arranged at the lower end inside the valve body 1, the gasket 5 is positioned between the oil inlet 3 and the oil outlet 4, a valve core 6 matched with the gasket 5 is connected inside the valve body 1 in a sliding manner, a first spring 8 is movably sleeved at the upper end of the valve core 6, a convex column 61 is uniformly arranged in the middle of the lower surface of the valve core 6, oil holes matched with the convex column 61 are uniformly arranged at the edge of the gasket 5, the lower end of the convex column 61 is conical, an overflow port of an external oil way is communicated with the oil inlet 3 on the left side of the valve body 1 through a pipeline, when the oil pressure of the oil way is greater than the elastic force of the first spring 8, the convex column 61 at the lower end of the valve core 6 is jacked upwards by hydraulic oil until the hydraulic oil hole is separated from the oil hole at the edge of the gasket 5, and then the hydraulic oil is discharged through the oil outlet 4, the oil pressure of the oil way is ensured to be stable, and the convex columns 61 at the lower end of the valve core 6 can dredge oil holes uniformly arranged at the edge of the gasket 5 during resetting, so that blockage is prevented;

anti-blocking mechanism 2: the anti-blocking mechanism 2 comprises a sleeve 21, a sealing ring 23 and a filter screen 24, the sleeve 21 is slidably connected inside a sliding hole arranged in the middle of the valve core 6, the filter screen 24 is arranged at the lower end of the sleeve 21, hydraulic oil is conveniently filtered, the valve body 1 is prevented from being blocked by impurities in the hydraulic oil, the sealing ring 23 is arranged at the edge of the upper surface of the filter screen 24, the sealing ring 23 is in contact with the edge of the lower surface of a gasket 5, the sealing performance of the joint of the filter screen 24 and the gasket 5 is ensured, the upper end of the sleeve 21 sequentially penetrates through a circular hole in the middle of an adjusting plate 9 and a through hole in the middle of a valve cover 7, a nut 11 is in threaded connection with the upper end, the sleeve 21 and the filter screen 24 are conveniently fixed, an insert rod 22 is movably inserted in the sleeve 21, and a second spring 12 is movably sleeved at the upper end of the insert rod 22, the lower end of the second spring 12 is in contact with the upper end of the sleeve 21, the lower end of the insert rod 22 is provided with a pressing plate 25, the pressing plate 25 is located at the lower end of the filter screen 24, scraping pieces 14 in contact with the outer arc surface of the filter screen 24 are uniformly arranged at the edge of the upper surface of the pressing plate 25, the insert rod 22 is rotated to drive the pressing plate 25 to rotate, the scraping pieces 14 at the edge of the upper surface of the pressing plate 25 can clean the filter screen 24, the filtering effect of the filter screen 24 is ensured, the center of the lower surface of the valve body 1 is provided with a sewage discharge port, and the inner thread of the sewage discharge port is connected with a sealing bolt 13 to facilitate sewage discharge;

wherein: still include valve gap 7, valve gap 7 threaded connection is in the upper end opening part of valve body 1, valve gap 7's middle part is provided with anti-blocking mechanism 2 complex through-hole, play sealed effect to valve body 1's upper end, the threaded hole that valve gap 7 edge symmetry set up is downthehole equal threaded connection has lead screw 10, the lower extreme of two lead screws 10 rotates with the commentaries on classics hole that regulating plate 9 edge set up respectively to be connected, regulating plate 9 and valve body 1's inner wall sliding connection and with first spring 8's upper end contact, rotate two lead screws 10 simultaneously, drive regulating plate 9 and reciprocate, can adjust the pressure that first spring 8 applyed to case 6, and then conveniently regulate and control the maximum pressure in the oil circuit.

The utility model provides a pair of prevent blockking up theory of operation of hydrovalve as follows: an overflow port of an external oil path is communicated with an oil inlet 3 on the left side of a valve body 1 through a pipeline, when the oil pressure of the oil path is greater than the elastic force of a first spring 8, hydraulic oil is filtered by a filter screen 24 at the lower end of a sleeve 21 and then jacks up a convex column 61 at the lower end of a valve core 6 until the convex column is separated from an oil hole at the edge of a gasket 5, the hydraulic oil is discharged through an oil outlet 4 at the moment, the oil pressure of the oil path is ensured to be stable, impurities in the hydraulic oil are filtered by the filter screen 24 and then remain to the bottom end inside the valve body 1, an insert rod 22 is pressed downwards at the moment to enable a second spring 12 to contract, a pressing plate 25 is moved downwards to the lower end of the oil inlet 3, a sealing bolt 13 is taken down at the moment to conveniently discharge the impurities in the hydraulic oil, in the process, the pressing plate 25 is matched with a cavity of the valve body 1, oil conveyed upwards cannot leak through a sewage discharge port at the lower end of the valve body 1, the insert rod 22 is not pressed any more, the second spring 12 enables the insert rod 22 to reset, rotate inserted bar 22 simultaneously, it rotates to drive clamp plate 25, doctor-bar 14 at clamp plate 25 upper surface edge can scrape filter screen 24 clean, guarantee filter screen 24's filter effect, rotate two lead screws 10 simultaneously, it reciprocates to drive regulating plate 9, can adjust the pressure that first spring 8 applyed to case 6, and then conveniently regulate and control the maximum pressure in the oil circuit, when the oil pressure is less than first spring 8's elasticity, first spring 8 promotes case 6 and resets, projection 61 of case 6 lower extreme can dredge the oilhole that 5 edges of packing ring evenly set up, prevent to block up.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. An anti-clogging hydraulic valve is characterized in that: comprises a valve body (1) and an anti-blocking mechanism (2);

valve body (1): an oil inlet (3) is formed in the left side of the outer arc surface of the valve body (1), an oil outlet (4) is formed in the right side of the outer arc surface of the valve body (1), the oil inlet (3) and the oil outlet (4) are arranged in a vertically staggered mode, a gasket (5) is arranged at the lower end of the interior of the valve body (1), the gasket (5) is located between the oil inlet (3) and the oil outlet (4), a valve core (6) matched with the gasket (5) is connected to the interior of the valve body (1) in a sliding mode, and a first spring (8) is movably sleeved at the upper end of the valve core (6);

anti-blocking mechanism (2): the lower end of the anti-blocking mechanism (2) is connected with the inner wall of the valve body (1) in a sliding way;

wherein: still include valve gap (7), valve gap (7) threaded connection is in the upper end opening part of valve body (1), and the middle part of valve gap (7) is provided with and prevents stifled mechanism (2) complex through-hole.

2. The anti-jam hydraulic valve as set forth in claim 1, wherein: convex columns (61) are uniformly arranged in the middle of the lower surface of the valve core (6), oil holes matched with the convex columns (61) are uniformly formed in the edge of the gasket (5), and the lower ends of the convex columns (61) are conical.

3. The anti-jam hydraulic valve as set forth in claim 1, wherein: the threaded hole that valve gap (7) edge symmetry set up all threaded connection have lead screw (10), and the lower extreme of two lead screws (10) rotates with the commentaries on classics hole that regulating plate (9) edge set up respectively and is connected, regulating plate (9) and the inner wall sliding connection of valve body (1) and with the upper end contact of first spring (8).

4. The anti-jam hydraulic valve as set forth in claim 3, wherein: prevent stifled mechanism (2) including sleeve (21), sealing washer (23) and filter screen (24), inside sleeve (21) sliding connection in the slide opening that case (6) middle part set up, the lower extreme of sleeve (21) is provided with filter screen (24), and filter screen (24) upper surface edge is provided with sealing washer (23), and sealing washer (23) and the lower surface edge contact of packing ring (5), the upper end of sleeve (21) passes the circular port in regulating plate (9) middle part and the through-hole in valve gap (7) middle part in proper order and has nut (11) at upper end threaded connection.

5. The anti-jam hydraulic valve as set forth in claim 4, wherein: an insert rod (22) is movably inserted in the sleeve (21), a second spring (12) is movably sleeved at the upper end of the insert rod (22), the lower end of the second spring (12) is in contact with the upper end of the sleeve (21), a pressing plate (25) is arranged at the lower end of the insert rod (22), and the pressing plate (25) is located at the lower end of the filter screen (24).

6. The anti-jam hydraulic valve as set forth in claim 5, wherein: and scraping blades (14) in contact with the outer arc surface of the filter screen (24) are uniformly arranged at the edge of the upper surface of the pressing plate (25).

7. The anti-jam hydraulic valve as set forth in claim 1, wherein: a sewage draining outlet is formed in the center of the lower surface of the valve body (1), and a sealing bolt (13) is connected to the inner thread of the sewage draining outlet.