CN214197529U - Load sensitive piece formula multiple unit valve tail piece - Google Patents

Abstract

The utility model discloses a load sensitive piece formula multiple unit valve tail piece relates to multiple unit valve accessory field, including valve block, oil-out and oil inlet, first oil duct has been seted up to the inner wall of valve block below that is located the oil-out, one side of first oil duct is connected with the second oil duct, one side of keeping away from first oil duct of second oil duct is connected with the third oil duct, the pressure-relief pipe has been seted up to the top of third oil duct, and the inner wall of pressure-relief pipe has seted up the buffer pad, the top of pressure-relief pipe is connected with the fourth oil duct, the manometer is installed to one side of fourth oil duct. The utility model discloses a manometer, pressure measurement probe, snap ring and sealing washer, hydraulic oil enter into in the fourth oil duct to manage through the branch of one side and extrude the pressure measurement probe, make the manometer produce the extrusion after the pressure measurement probe receives pressure, the manometer turns into the rotation of pointer with pressure, thereby shows the size of pressure, and the snap ring can be fixed the manometer with the sealing washer.

Description

Load sensitive piece formula multiple unit valve tail piece

Technical Field

The utility model relates to a multiple unit valve accessory field specifically is a load sensitive piece formula multiple unit valve tail piece.

Background

The multi-way valve has more mechanical hydraulic actuating mechanisms, and requires composite movement of the actuating mechanisms in the working process, when the flow of a pump is saturated, the flow of each actuating mechanism is influenced by a load to cause distribution proportion imbalance, and great influence is generated on the maneuverability of engineering machinery, so that a load sensitive valve is often arranged on a variable pump in a load sensitive system, and a load sensitive sheet type multi-way valve is generally applied to a hydraulic control system which needs to control the composite action of two or more actuating mechanisms, so that the flow distribution of the multiple actuating mechanisms is more coordinated in the composite operation.

The multiple unit valve is in the use, and the oil pressure in the multiple unit valve can lead to producing high pressure in the twinkling of an eye in the oil circuit because of the influence of operation or external oil pressure equipment to can lead to the fact the impact to the sensitive valve of load, if when pressure impact appears in load feedback pressure, this impact can make the load feedback signal distortion of control pump, thereby influence the flow control precision of variable pump, and the oil pressure in the observation pipeline that can not be convenient, inconvenient operating personnel uses.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problems that instantaneous high pressure cannot be treated and oil pressure cannot be conveniently measured, a load-sensitive plate type multi-way valve tail piece is provided.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a load sensing piece formula multiple unit valve tail piece, includes valve block, oil-out and oil inlet, the inner wall of valve block is located the below of oil-out and has seted up first oil duct, one side of first oil duct is connected with the second oil duct, one side of keeping away from first oil duct of second oil duct is connected with the third oil duct, the pressure-relief pipe has been seted up to the top of third oil duct, and the inner wall of pressure-relief pipe has seted up the buffer pad, the top of pressure-relief pipe is connected with the fourth oil duct, the manometer is installed to one side of fourth oil duct, and the manometer extends to the outer wall of valve block, the snap ring has been seted up to the outer wall of manometer, the sealing washer has been seted up to the outer wall of snap ring, the screw thread has been seted up to the sealing washer inner wall, the sealing washer passes through screw thread and valve block fixed connection, the jack has been seted up on the top of fourth oil duct, the oil circuit has been seted up to the inner wall of jack.

Preferably, a first through hole is formed above the oil inlet, a second through hole is formed below the oil inlet, and a third through hole is formed below the oil outlet.

Preferably, a guide pipe is arranged at the bottom end of the second oil duct, and the second oil duct is connected with an external load valve through the guide pipe.

Preferably, a pressure measuring probe is arranged at the end of the pressure measuring device, and the pressure measuring probe is communicated with the hydraulic oil in the fourth oil duct.

Preferably, the bottom of buffer plate has seted up the spring, and the buffer plate passes through spring and valve block sliding connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a third oil duct, pressure-relief pipe and buffer plate, hydraulic oil is at first through first oil duct, the second oil duct gets into in the valve block, hydraulic oil passes through the pressure-relief pipe afterwards and gets into in the fourth oil duct, when external hydraulic oil takes place to lead to hydraulic oil to produce high pressure peak value because of special circumstances, high-pressure oil flows at the pressure-relief pipe partial pressure, detached high-pressure oil strikes each other in buffer plate position, wherein most impact force offsets each other, and the oil pressure is big more, the impact force is big more each other, make buffer efficiency high, and the buffer plate can absorb partial impact, thereby reduce the damage to oil pipe, can effectually reduce the instantaneous pressure in the hydraulic oil, reduce the damage of high-pressure oil to the multiple unit valve, the problem that can not handle the high pressure in the twinkling of an eye has been solved;

2. the utility model discloses a pressure measuring device, pressure measuring probe, snap ring and sealing washer, hydraulic oil enters into in the fourth oil duct to manage through the branch of one side and extrude pressure measuring probe, pressure measuring probe makes pressure measuring device produce the extrusion after receiving pressure, and pressure measuring device turns into the rotation of pointer with pressure, thereby shows the size of pressure, and the snap ring can be fixed pressure measuring device with the sealing washer, prevents that pressure measuring device from droing, also can avoid hydraulic oil to leak, has solved the problem that can not be convenient carry out the measurement to the oil pressure.

Drawings

Fig. 1 is a schematic sectional structure of the present invention;

fig. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of the installation structure of the pressure gauge of the present invention.

In the figure: 1. a valve plate; 2. an oil inlet; 3. a first through hole; 4. a second through hole; 5. a third through hole; 6. An oil outlet; 7. a first oil passage; 8. a second oil passage; 9. a third oil passage; 10. a fourth oil passage; 11. a jack; 12. a pressure gauge; 13. a pressure relief pipe; 14. a buffer sheet; 15. an oil path; 16. a pressure measuring probe; 17. A snap ring; 18. and (5) sealing rings.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention according to its overall structure.

Referring to fig. 1-3, a load-sensitive multi-way valve tail piece includes a valve plate 1, an oil outlet 6 and an oil inlet 2, a first oil duct 7 is disposed below the oil outlet 6 on the inner wall of the valve plate 1, a second oil duct 8 is connected to one side of the first oil duct 7, a third oil duct 9 is connected to one side of the second oil duct 8 away from the first oil duct 7, a pressure relief pipe 13 is disposed above the third oil duct 9, a buffer sheet 14 is disposed on the inner wall of the pressure relief pipe 13, a fourth oil duct 10 is connected to the top end of the pressure relief pipe 13, a pressure measuring device 12 is mounted on one side of the fourth oil duct 10, the pressure measuring device 12 extends to the outer wall of the valve plate 1, a snap ring 17 is disposed on the outer wall of the pressure measuring device 12, a seal ring 18 is disposed on the outer wall of the snap ring 17, a thread is disposed on the inner wall of the seal ring 18, the seal ring 18 is fixedly connected to the valve plate 1 through the thread, a jack 11 is disposed on the top end of the fourth oil duct 10, the inner wall of the jack 11 is provided with an oil passage 15.

Please refer to fig. 1, a first through hole 3 is formed above the oil inlet 2, a second through hole 4 is formed below the oil inlet 2, a third through hole 5 is formed below the oil outlet 6, and the tail piece can be fixed through multiple sets of through holes.

Please refer to fig. 1, a conduit is disposed at a bottom end of the second oil duct 8, and the second oil duct 8 is connected to an external load valve through the conduit.

Please refer to fig. 1, a pressure measuring probe 16 is disposed at an end of the pressure measuring device 12, and the pressure measuring probe 16 is connected to the hydraulic oil in the fourth oil passage 10.

Please refer to fig. 2, a spring is disposed at the bottom of the buffer sheet 14, and the buffer sheet 14 is slidably connected to the valve plate 1 through the spring, so that a part of oil pressure can be absorbed by the buffer sheet 14, and the pressure on the oil pipe when the high-pressure oil impacts each other is reduced.

The working principle is as follows: the hydraulic oil firstly enters the valve block 1 through the first oil passage 7 and the second oil passage 8, then the hydraulic oil enters the fourth oil passage 10 through the pressure relief pipe 13, when the external hydraulic oil generates a high pressure peak value due to a special condition, the high pressure oil flows in the pressure relief pipe 13 in a partial pressure manner, the separated high pressure oil impacts each other at the position of the buffer sheet 14, most impact forces are mutually counteracted, the higher the oil pressure is, the higher the mutual impact force is, the higher the buffer efficiency is, and the buffer sheet 14 can absorb part of the impact, thereby reducing the damage to the oil pipe, effectively reducing the instant pressure in the hydraulic oil, reducing the damage of the high pressure oil to the multi-way valve, the hydraulic oil enters the fourth oil passage 10, the pressure measuring probe 16 is extruded through the branch pipe at one side, the pressure measuring probe 16 extrudes the pressure measuring device 12 after receiving the pressure, the pressure measuring device 12 converts the pressure into the rotation of a, therefore, the snap ring 17 and the seal ring 18 can fix the pressure gauge 12 to indicate the pressure, so that the pressure gauge 12 is prevented from falling off, and the hydraulic oil can be prevented from leaking.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a load sensitive piece formula multiple unit valve tail piece, includes valve block (1), oil-out (6) and oil inlet (2), its characterized in that: the oil-gas separation valve is characterized in that a first oil duct (7) is formed in the inner wall of the valve block (1) and located below an oil outlet (6), a second oil duct (8) is connected to one side of the first oil duct (7), a third oil duct (9) is connected to one side, away from the first oil duct (7), of the second oil duct (8), a pressure relief pipe (13) is formed above the third oil duct (9), a buffer sheet (14) is formed in the inner wall of the pressure relief pipe (13), a fourth oil duct (10) is connected to the top end of the pressure relief pipe (13), a pressure measuring device (12) is installed on one side of the fourth oil duct (10), the pressure measuring device (12) extends to the outer wall of the valve block (1), a clamping ring (17) is formed in the outer wall of the pressure measuring device (12), a sealing ring (18) is formed in the outer wall of the clamping ring (17), threads are formed in the inner wall of the sealing ring (18), and the sealing ring (18) is fixedly connected with the valve block (1) through threads, the top end of the fourth oil duct (10) is provided with a jack (11), and the inner wall of the jack (11) is provided with an oil way (15).

2. The load sensing wafer style multiport valve tail of claim 1, wherein: a first through hole (3) is formed above the oil inlet (2), a second through hole (4) is formed below the oil inlet (2), and a third through hole (5) is formed below the oil outlet (6).

3. The load sensing wafer style multiport valve tail of claim 1, wherein: the bottom end of the second oil duct (8) is provided with a guide pipe, and the second oil duct (8) is connected with an external load valve through the guide pipe.

4. The load sensing wafer style multiport valve tail of claim 1, wherein: and a pressure measuring probe (16) is arranged at the end part of the pressure measuring device (12), and the pressure measuring probe (16) is communicated with the hydraulic oil in the fourth oil duct (10).

5. The load sensing wafer style multiport valve tail of claim 1, wherein: the bottom of buffer piece (14) has seted up the spring, and buffer piece (14) pass through spring and valve block (1) sliding connection.

Images