CN216382718U - Multi-way safety valve - Google Patents

Abstract

The utility model discloses a multi-path safety valve which comprises an aluminum valve body, wherein a first socket is arranged inside one side of the top end of the aluminum valve body, a second socket is arranged inside the middle position of the top end of the aluminum valve body, a fourth socket is arranged inside the bottom end of the aluminum valve body, and an energy accumulator pressure adjusting structure is arranged inside the second socket. This multichannel relief valve is through being provided with the pressure regulating plug screw, the pressure regulating screw, grease proofing fastening nut, the air-vent valve nut connects, first spring holder, the pressure regulating spring, the valve pipe, the disk seat, the air-vent valve body, pressure regulating valve body packing ring, during the use, the user twists the pressure regulating plug screw through interior hexagonal instrument or spanner, the pressure regulating plug screw drives the pressure regulating screw and rotates, the pressure regulating screw is through promoting the valve pipe, the disk seat reciprocates, with the medium flow in the regulation air-vent valve body, the function of customizing pressure design according to equipment actual conditions adjustment has been realized, the problem of the function that the device did not possess according to equipment actual conditions adjustment customizing pressure design is solved.

Description

Multi-way safety valve

Technical Field

The utility model relates to the technical field of safety valves, in particular to a multi-path safety valve.

Background

The multi-path safety valve group is composed of a check valve, two valves of an energy accumulator and a safety protection valve of a system protection safety valve, the multi-path safety valve prevents medium pressure in equipment from exceeding a specified value by discharging media outside the system, plays a role in multiple protection on personal safety and equipment operation, most of safety valves on the market are simple in structure at present, inconvenience exists in use, the improvement is needed, if the customized pressure design cannot be adjusted according to the actual model of the equipment, the multi-path safety valve group is flexibly applicable to equipment with multiple different specifications, secondly, the sealing performance of the check valve is poor, the condition of oil leakage easily occurs under the condition of insufficient pressure, in addition, auxiliary protection measures are lacked, once the pressure of a steering system exceeds a safety valve setting threshold value, and valve body damage easily occurs.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a multi-way safety valve to solve the problem that the prior art does not have the function of adjusting the customized pressure design according to the actual condition of equipment.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a multichannel relief valve, includes the aluminium valve body, the inside of aluminium valve body top one side is provided with first socket, the inside of aluminium valve body top intermediate position department is provided with the second socket, the inside of aluminium valve body top opposite side is provided with the third socket, the inside of aluminium valve body bottom is provided with the fourth socket, the inside of second socket is pegged graft and is had the top plug screw, sixth O type circle has been cup jointed to the outside of top plug screw, the piston board is installed to the bottom of top plug screw, the inside of third socket is pegged graft and is had sealed plug screw, the inside of second socket is provided with accumulator pressure and adjusts the structure.

Preferably, the pressure regulating structure of the energy accumulator comprises a pressure regulating valve body, the pressure regulating valve body is inserted into the first socket, a fourth O-ring is sleeved at the middle position outside the pressure regulating valve body, a fifth O-ring is sleeved at the bottom outside the pressure regulating valve body, pressure regulating valve body gaskets are respectively arranged at the upper end and the lower end of the fifth O-ring, a valve seat is arranged inside the pressure regulating valve body, a valve pipe is inserted into the top end of the valve seat, a second O-ring is sleeved at the middle position outside the valve pipe, a pipe orifice gasket is arranged at the top end of the second O-ring, a third O-ring is sleeved at the middle position outside the valve seat, sealing gaskets are respectively arranged at the upper end and the lower end of the third O-ring, a pressure regulating spring is sleeved outside the valve pipe, a first spring seat is installed at the top end of the pressure regulating spring, and a nut joint is inserted into the top end of the pressure regulating valve body, first O type circle has been cup jointed to the outside bottom that the air-vent valve nut connects, grease proofing fastening nut is installed on the top that the air-vent valve nut connects, grease proofing fastening nut's inside is pegged graft and is had the pressure regulating screw, the top welding of pressure regulating screw has the pressure regulating plug screw.

Preferably, the pressure regulating screw penetrates through the oil-proof fastening nut and the pressure regulating valve nut joint and is connected with the top end of the first spring seat, and the external thread of the pressure regulating screw is matched with the internal threads of the oil-proof fastening nut and the pressure regulating valve nut joint.

Preferably, the inner diameters of the pressure regulating valve body gasket and the fifth O-shaped ring are consistent, and the pressure regulating valve body gasket is symmetrically distributed about the horizontal center line of the fifth O-shaped ring.

Preferably, a piston sealing ring is sleeved inside the middle position of the piston plate, and the outer diameter of the piston sealing ring is matched with the inner diameter of the first socket.

Preferably, the bottom end of the piston plate is fixedly connected with a second spring seat, a built-in thimble is installed at the bottom end of the second spring seat, a thimble sealing ring is sleeved outside the built-in thimble, a piston spring is sleeved between the top end of the outside of the built-in thimble and the bottom end of the outside of the second spring seat, and the second spring seat penetrates through the inside of the piston spring and is connected with the top end of the built-in thimble.

Preferably, the sixth O-shaped ring is sleeved outside the sealing plug screw, the inner valve core is sleeved at the bottom of the sealing plug screw, a valve core spring is arranged inside the inner valve core, the bottom plug screw is inserted inside the fourth socket, the oil filter is arranged at the top end of the bottom plug screw, the filter spring is sleeved outside the oil filter, a gasket is installed at the top end of the oil filter, the bottom end of the sealing plug screw is connected with the top end of the valve core spring, and the third socket is communicated with the fourth socket.

Compared with the prior art, the utility model has the beneficial effects that: the multi-path safety valve not only realizes the function of adjusting customized pressure design according to the actual condition of equipment, realizes the function of multi-sealing of a valve port, but also realizes the function of pressure overload auxiliary protection;

(1) when the pressure regulating valve is used, a user twists the pressure regulating plug by an inner hexagonal tool or a wrench according to the actual model and performance conditions of equipment, the pressure regulating plug drives the pressure regulating screw to rotate, the pressure regulating screw pushes the valve pipe and the valve seat to move up and down to regulate the medium flow in the pressure regulating valve body, so that the aim of regulating the pressure design is achieved, and the pipe orifice gasket, the second O-shaped ring, the sealing gasket, the third O-shaped ring, the fourth O-shaped ring, the pressure regulating valve body gasket and the fifth O-shaped ring provide multi-layer sealing for the connection between the inside and the outside of the valve body, the oil leakage is prevented, and the function of adjusting the customized pressure design according to the actual condition of the equipment is realized;

(2) when the valve is used, the top plug screw is screwed into the first socket, the sixth O-shaped ring seals the interface on one hand, so that the connection is firmer on the other hand, the piston plate and the piston sealing ring outside the piston plate further seal the inner cavity of the first socket, and the second spring seat supports the piston plate under the pushing of the piston spring, the built-in thimble and the thimble sealing ring, so that the position of the piston plate is ensured to be horizontal, the skew gap is prevented, and the function of multiple sealing of a valve port is realized;

(3) through being provided with sealed plug screw, the case spring, the inner valve core, the gasket, fluid filter, filter spring and bottom plug screw, during the use, when steering pump compensating valve malfunction, in case the compensating valve makes steering system pressure exceed the relief valve and sets for the threshold value, the case spring of sealed plug screw below, the relief valve that the inner valve core constitutes is opened, the fluid medium enters into in the fluid filter along the internal pipe, fluid release oil tank after the filtration, the filter spring provides pressure protection for the fluid filter, prevent that high pressure fluid from touching the end with the fluid filter punching press and causing the damage, the leakproofness of valve body bottom has been guaranteed to the bottom plug screw, pressure overload auxiliary protection's function has been realized.

Drawings

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

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic view of the front view enlarged structure of the present invention;

fig. 4 is a schematic bottom enlarged view of the present invention.

In the figure: 1. an aluminum valve body; 2. a pressure regulating screw plug; 3. a pressure regulating screw; 4. an oil-proof fastening nut; 5. a pressure regulating valve nut fitting; 6. a first O-ring; 7. a first spring seat; 8. a pressure regulating spring; 9. a valve tube; 10. a nozzle gasket; 11. a second O-ring; 12. a valve seat; 13. a gasket; 14. a third O-ring; 15. a pressure regulating valve body; 16. a fourth O-ring; 17. a pressure regulating valve body gasket; 18. a fifth O-ring; 19. a top plug screw; 20. a sixth O-ring; 21. a piston plate; 22. a piston seal ring; 23. a second spring seat; 24. a piston spring; 25. a thimble is arranged inside; 26. a thimble sealing ring; 27. sealing the screw plug; 28. a spool spring; 29. an inner valve core; 30. a gasket; 31. an oil filter; 32. a filter spring; 33. a bottom plug screw; 34. a first socket; 35. a second socket; 36. a third socket; 37. and a fourth socket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.

Example 1: referring to fig. 1-4, a multi-way safety valve comprises an aluminum valve body 1, wherein a first socket 34 is arranged inside one side of the top end of the aluminum valve body 1, a second socket 35 is arranged inside the middle position of the top end of the aluminum valve body 1, a third socket 36 is arranged inside the other side of the top end of the aluminum valve body 1, a fourth socket 37 is arranged inside the bottom end of the aluminum valve body 1, and an energy accumulator pressure adjusting structure is arranged inside the second socket 35;

referring to fig. 1-4, the multi-way safety valve further includes an accumulator pressure adjusting structure, the accumulator pressure adjusting structure includes a pressure adjusting valve body 15, the pressure adjusting valve body 15 is inserted into the first socket 34, a fourth O-ring 16 is sleeved at a middle position of an outer portion of the pressure adjusting valve body 15, a fifth O-ring 18 is sleeved at a bottom end of the outer portion of the pressure adjusting valve body 15, pressure adjusting valve body gaskets 17 are respectively disposed at upper and lower ends of the fifth O-ring 18, a valve seat 12 is disposed inside the pressure adjusting valve body 15, a valve tube 9 is inserted inside a top end of the valve seat 12, a second O-ring 11 is sleeved at a middle position of an outer portion of the valve tube 9, a tube opening gasket 10 is disposed at a top end of the second O-ring 11, a third O-ring 14 is sleeved at a middle position of an outer portion of the valve seat 12, sealing gaskets 13 are respectively disposed at upper and lower ends of the third O-ring 14, and a pressure adjusting spring 8 is sleeved outside the valve tube 9, a first spring seat 7 is installed at the top end of the pressure regulating spring 8, a pressure regulating valve nut joint 5 is inserted into the top end of the pressure regulating valve body 15, a first O-shaped ring 6 is sleeved at the bottom end of the outer part of the pressure regulating valve nut joint 5, an oil-proof fastening nut 4 is installed at the top end of the pressure regulating valve nut joint 5, a pressure regulating screw 3 is inserted into the oil-proof fastening nut 4, and a pressure regulating screw plug 2 is welded at the top end of the pressure regulating screw 3;

the pressure regulating screw 3 penetrates through the oil-proof fastening nut 4 and the interior of the pressure regulating valve nut joint 5 and is connected with the top end of the first spring seat 7, the external thread of the pressure regulating screw 3 is matched with the internal threads of the oil-proof fastening nut 4 and the pressure regulating valve nut joint 5, the inner diameters of the pressure regulating valve body gasket 17 and the fifth O-shaped ring 18 are consistent, and the pressure regulating valve body gasket 17 is symmetrically distributed about the horizontal central line of the fifth O-shaped ring 18, so that the internal sealing performance is ensured while the regulation is facilitated;

specifically, as shown in fig. 1 and 2, according to the actual model and performance of the device, a user screws the pressure regulating plug 2 through a hexagon socket head tool or a wrench, the pressure regulating plug 2 drives the pressure regulating screw 3 to rotate, the pressure regulating screw 3 moves up and down through pushing the valve tube 9 and the valve seat 12 to regulate the medium flow in the valve body 15 of the pressure regulating valve, so as to achieve the purpose of pressure regulating design, the orifice gasket 10, the second O-ring 11, the sealing gasket 13, the third O-ring 14, the fourth O-ring 16, the pressure regulating valve body gasket 17 and the fifth O-ring 18 provide multi-level sealing for the connection between the inside and the outside of the valve body 15 of the pressure regulating valve, so as to prevent oil leakage, and realize the function of regulating the customized pressure design according to the actual condition of the device.

Example 2: a top plug screw 19 is inserted into the second socket 35, a sixth O-ring 20 is sleeved outside the top plug screw 19, a piston plate 21 is installed at the bottom end of the top plug screw 19, a second spring seat 23 is fixedly connected to the bottom end of the piston plate 21, a built-in thimble 25 is installed at the bottom end of the second spring seat 23, a thimble seal ring 26 is sleeved outside the built-in thimble 25, a piston spring 24 is sleeved between the top end of the outside of the built-in thimble 25 and the bottom end of the outside of the second spring seat 23, the second spring seat 23 penetrates through the inside of the piston spring 24 and is connected with the top end of the built-in thimble 25, a piston seal ring 22 is sleeved inside the middle position of the piston plate 21, the outer diameter of the piston seal ring 22 is matched with the inner diameter of the first socket 34, and multi-layer sealing is used for preventing leakage;

specifically, as shown in fig. 1 and 3, the top plug screw 19 is screwed into the first socket 34, on one hand, the sixth O-ring 20 seals the interface, on the other hand, the connection is firmer, the piston plate 21 and the piston seal ring 22 outside the piston plate further seal the inner cavity of the first socket 34, and under the pushing of the piston spring 24, the built-in thimble 25 and the thimble seal ring 26, the second spring seat 23 supports the piston plate 21, so that the position level of the piston plate is ensured, a gap is prevented from being skewed, and the function of multiple sealing of the valve port is realized.

Example 3: a sealing plug screw 27 is inserted into the third socket 36, a sixth O-ring 20 is sleeved outside the sealing plug screw 27, an inner valve core 29 is sleeved at the bottom of the sealing plug screw 27, a valve core spring 28 is arranged inside the inner valve core 29, a bottom plug screw 33 is inserted into the fourth socket 37, an oil filter 31 is arranged at the top end of the bottom plug screw 33, a filter spring 32 is sleeved outside the oil filter 31, a gasket 30 is arranged at the top end of the oil filter 31, the bottom end of the sealing plug screw 27 is connected with the top end of the valve core spring 28, and the third socket 36 is communicated with the inside of the fourth socket 37, so that oil media can be rapidly circulated;

specifically, as shown in fig. 1 and 4, when the steering pump compensating valve malfunctions, once the compensating valve makes the steering system pressure exceed the safety valve set threshold, the safety valve formed by the spool spring 28 and the inner spool 29 below the seal plug 27 is opened, the oil medium enters the oil filter 31 along the internal pipeline, the filtered oil is released and returns to the oil tank, the filter spring 32 provides pressure protection for the oil filter 31, the oil filter 31 is prevented from being damaged by being pressed by high-pressure oil, the bottom plug screw 33 ensures the sealing performance of the bottom of the valve body, and the function of pressure overload auxiliary protection is realized.

The working principle is as follows: when the pressure regulating valve is used, firstly, according to the actual model and performance condition of equipment, a user twists the pressure regulating screw plug 2 through an inner hexagonal tool or a wrench, the pressure regulating screw plug 2 drives the pressure regulating screw 3 to rotate, the pressure regulating screw 3 moves up and down through pushing the valve pipe 9 and the valve seat 12 to regulate the medium flow in the valve body 15 of the pressure regulating valve, so that the purpose of pressure regulating design is achieved, the pipe orifice gasket 10, the second O-shaped ring 11, the sealing gasket 13, the third O-shaped ring 14, the fourth O-shaped ring 16, the pressure regulating valve body gasket 17 and the fifth O-shaped ring 18 provide multi-layer sealing for connection between the inside and the outside of the valve body 15 of the pressure regulating valve, oil leakage is prevented, and the function of regulating customized pressure design according to the actual condition of the equipment is realized; the top plug screw 19 is screwed into the first socket 34, on one hand, the sixth O-shaped ring 20 seals the interface, on the other hand, the connection is firmer, the piston plate 21 and the piston sealing ring 22 outside the piston plate further seal the inner cavity of the first socket 34, and under the pushing of the piston spring 24, the built-in thimble 25 and the thimble sealing ring 26, the second spring seat 23 supports the piston plate 21, so that the position level of the piston plate is ensured, the phenomenon of deflection and a gap are prevented, and the function of multi-sealing of the valve port is realized; when a steering pump compensating valve malfunctions, once the compensating valve enables the pressure of a steering system to exceed a set threshold value of a safety valve, the safety valve formed by a valve core spring 28 and an inner valve core 29 below a sealing screw plug 27 is opened, an oil medium enters an oil filter 31 along an inner pipeline, the filtered oil is released and returns to an oil tank, a filter spring 32 provides pressure protection for the oil filter 31, the oil filter 31 is prevented from being damaged due to bottom contact caused by stamping of high-pressure oil, the bottom screw plug 33 ensures the sealing property of the bottom of a valve body, and the function of pressure overload auxiliary protection is realized.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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 (7)

1. The utility model provides a multichannel relief valve, includes aluminium valve body (1), its characterized in that: the inside of aluminium valve body (1) top one side is provided with first socket (34), the inside of aluminium valve body (1) top intermediate position department is provided with second socket (35), the inside of aluminium valve body (1) top opposite side is provided with third socket (36), the inside of aluminium valve body (1) bottom is provided with fourth socket (37), the inside grafting of second socket (35) has top plug screw (19), the outside of top plug screw (19) has cup jointed sixth O type circle (20), piston plate (21) are installed to the bottom of top plug screw (19), the inside grafting of third socket (36) has sealed plug screw (27), the inside of second socket (35) is provided with energy storage ware pressure control structure.

2. A multiple-way safety valve according to claim 1, wherein: the pressure regulating structure of the energy accumulator comprises a pressure regulating valve body (15), the pressure regulating valve body (15) is inserted into a first socket (34), a fourth O-shaped ring (16) is sleeved at the middle position outside the pressure regulating valve body (15), a fifth O-shaped ring (18) is sleeved at the bottom end outside the pressure regulating valve body (15), pressure regulating valve body gaskets (17) are respectively arranged at the upper end and the lower end of the fifth O-shaped ring (18), a valve seat (12) is arranged inside the pressure regulating valve body (15), a valve pipe (9) is inserted into the top end of the valve seat (12), a second O-shaped ring (11) is sleeved at the middle position outside the valve pipe (9), a gasket (10) is arranged at the top end of the second O-shaped ring (11), a third O-shaped ring (14) is sleeved at the middle position outside the valve seat (12), and sealing gaskets (13) are respectively arranged at the upper end and the lower end of the third O-shaped ring (14), pressure regulating spring (8) have been cup jointed to the outside of valve pipe (9), first spring holder (7) are installed on the top of pressure regulating spring (8), the inside on air-vent valve body (15) top is pegged graft and is had air-vent valve nut to connect (5), first O type circle (6) have been cup jointed to the outside bottom of air-vent valve nut joint (5), grease proofing fastening nut (4) are installed on the top that air-vent valve nut connects (5), the inside of grease proofing fastening nut (4) is pegged graft and is had pressure regulating screw (3), the top welding of pressure regulating screw (3) has pressure regulating plug screw (2).

3. A multiple-way safety valve according to claim 2, wherein: the pressure regulating screw (3) runs through the inside of the oil-proof fastening nut (4) and the pressure regulating valve nut joint (5) and is connected with the top end of the first spring seat (7), and the external thread of the pressure regulating screw (3) is matched with the internal thread of the oil-proof fastening nut (4) and the pressure regulating valve nut joint (5).

4. A multiple-way safety valve according to claim 2, wherein: the inner diameters of the pressure regulating valve body gasket (17) and the fifth O-shaped ring (18) are consistent, and the pressure regulating valve body gasket (17) is symmetrically distributed about the horizontal center line of the fifth O-shaped ring (18).

5. A multiple-way safety valve according to claim 1, wherein: piston sealing ring (22) is sleeved in the piston plate (21) middle position, and the outer diameter of piston sealing ring (22) is matched with the inner diameter of first socket (34).

6. A multiple-way safety valve according to claim 1, wherein: the bottom end of the piston plate (21) is fixedly connected with a second spring seat (23), a built-in thimble (25) is installed at the bottom end of the second spring seat (23), a thimble sealing ring (26) is sleeved outside the built-in thimble (25), a piston spring (24) is sleeved between the top end of the outside of the built-in thimble (25) and the bottom end of the outside of the second spring seat (23), and the second spring seat (23) penetrates through the inside of the piston spring (24) and is connected with the top end of the built-in thimble (25).

7. A multiple-way safety valve according to claim 1, wherein: the utility model discloses a novel oil filter, including sealed plug screw (27), the outside of sealed plug screw (27) has cup jointed sixth O type circle (20), inner valve core (29) have been cup jointed to the bottom of sealed plug screw (27), the inside of inner valve core (29) is provided with case spring (28), the inside grafting of fourth socket (37) has bottom plug screw (33), the top of bottom plug screw (33) is provided with fluid filter (31), filter spring (32) have been cup jointed to the outside of fluid filter (31), gasket (30) are installed on the top of fluid filter (31), the bottom of sealed plug screw (27) is connected with the top of case spring (28), the inside of third socket (36) and fourth socket (37) is linked together.

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