CN218467955U - Low-loss superposed one-way valve - Google Patents

Abstract

The utility model belongs to the technical field of the check valve, a low-loss stack formula check valve is disclosed. This low-loss stack formula check valve, including the shell, the equal fixedly connected with rectangular block, two of central point of shell inner wall puts be provided with the piston between the rectangular block, two all be provided with accuse oily mechanism in the rectangular block. This low-loss stack formula check valve, operating personnel enters the shell with hydraulic oil through one side oil inlet after, hydraulic oil forms thrust and has ejecting with the piston, relative motion is to the slider in the external control spout, it opens to drive sealing door cooperation open slot in-connection pole, left side telescopic link one will correspond the telescopic link closure, when the piston carries out reciprocating motion, the condition that the oil leak oil seepage can not appear appears, unnecessary oil can be through the opposite side oil-out of flowing through in the piston, avoid a large amount of hydraulic oil from the piston outside to pass through, influence sealed effect, cause a large amount of losses.

Description

Low-loss superposed one-way valve

Technical Field

The utility model relates to a technical field of check valve specifically is a low-loss stack formula check valve.

Background

The check valve is commonly called as a check valve, fluid can only flow along the water inlet, and the medium at the water outlet cannot flow back. Check valves are also known as check valves or check valves. For preventing reverse flow of oil in hydraulic systems or for preventing reverse flow of compressed air in pneumatic systems. The one-way valve has a straight-through type and a right-angle type. The straight-through one-way valve is installed on the pipeline by threaded connection. The right-angle check valve has three forms of threaded connection, plate connection and flange connection.

Inside piston of stack formula check valve when carrying out reciprocating motion for a long time, will influence and lead to the fact the influence to inside sealed to cause the piston not hard up, lead to the condition emergence of revealing, thereby make the loss of hydraulic oil improve, the piston is not hard up still can influence the life of stack formula check valve, consequently, we need a low-loss stack formula check valve urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a low-loss stack formula check valve, this low-loss stack formula check valve.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a low-loss stack formula check valve, includes the shell, the central point of shell inner wall puts equal fixedly connected with rectangular block, two be provided with the piston between the rectangular block, two all be provided with accuse oily mechanism in the rectangular block.

Preferably, including two spouts in the accuse oily mechanism, two open the left and right sides in the rectangle piece in the spout, two equal sliding connection has the slider in the spout.

Preferably, still include the sealing door in the accuse oil mechanism, the sealing door sets up in the upper and lower both sides at both ends are seted up corresponding open slot about the piston, the equal fixedly connected with connecting rod in relative side of open slot, just correspond the connecting rod position in the sealing door and all seted up the cavity.

Preferably, the opposite side surfaces of the two connecting rods extend inwards and are in sliding connection with the cavity through corresponding sliding ways arranged on the sealing doors, the number of the sealing doors is four, the two sealing doors are respectively arranged at the left end and the right end of the piston in a group, and the opposite side surfaces of the two sealing doors are respectively provided with a sealing gasket.

Preferably, the oil control mechanism further comprises two telescopic rods, the two telescopic rods are respectively arranged in the rectangular grooves formed in the left side and the right side of the bottom side of the piston, a first telescopic rod is fixedly arranged in the rectangular block located on the lower side through the rectangular grooves, and the movable ends of the first telescopic rods are fixedly connected with the movable ends of the telescopic rods.

Preferably, the left and right sides in the shell all is provided with the check valve, the oil inlet has all been seted up to the left and right sides of shell upper surface, the oil-out has all been seted up to the left and right sides of shell lower surface, and the oil inlet is crisscross the setting with the oil-out.

Preferably, the left side and the right side in the shell are both fixedly communicated with collecting pipes, and collecting boxes are fixedly arranged on the left side and the right side of the lower surface of the shell and below the corresponding collecting pipes.

By adopting the technical scheme, the beneficial effects of the utility model are that:

1. this low-loss stack formula check valve, operating personnel enters the shell with hydraulic oil through one side oil inlet after, hydraulic oil forms thrust and has ejecting with the piston, relative motion is to slider in the external control spout, it opens to drive sealing door cooperation open slot in-connection pole, left side telescopic link will correspond the telescopic link closed, accomplish airtight back, right side telescopic link is opened the telescopic link, hydraulic oil passes through in the piston and flows and discharge from the opposite side oil-out through the breach that the telescopic link was opened, partial hydraulic oil is discharged from one side oil-out, realized when the piston carries out reciprocating motion, the condition that the oil leak oil seepage can not appear, unnecessary oil can pass through the opposite side oil-out of flowing through in the piston, avoid a large amount of hydraulic oil to pass through from the piston outside, influence sealed effect, cause a large amount of losses.

2. This low-loss stack formula check valve is provided with the collecting pipe in the shell, when inside have hydraulic oil many and can't get rid of, hydraulic oil can flow into the collecting box through the collecting pipe, forms the reutilization, avoids causing the waste.

Drawings

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is an enlarged view of the section A of FIG. 1 according to the present invention;

fig. 3 is an enlarged view of the point B in fig. 1 according to the present invention.

In the figure: the oil-collecting device comprises a shell 1, a rectangular block 2, a piston 3, an oil control mechanism 4, a sliding chute 41, a sliding block 42, a sealing door 43, an open slot 44, a connecting rod 45, a cavity 46, a sealing gasket 47, a telescopic rod 48, a telescopic rod 49I, a one-way valve 5, an oil inlet 6, an oil outlet 7, a collecting pipe 8 and a collecting box 9.

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 invention provides a technical solution: a low-loss stacked check valve comprises a shell 1, rectangular blocks 2 are fixedly connected to the central position of the inner wall of the shell 1, a piston 3 is arranged between the two rectangular blocks 2, an oil control mechanism 4 is arranged in each rectangular block 2, two sliding grooves 41 are arranged in each oil control mechanism 4, the left side and the right side of each rectangular block 2 are arranged in each sliding groove 41, sliding blocks 42 are connected in each sliding groove 41 in a sliding manner, a sealing door 43 is further arranged in each oil control mechanism 4, the sealing doors 43 are arranged in corresponding open grooves 44 formed in the upper side and the lower side of the left end and the lower side of each piston 3, opposite side surfaces of the open grooves 44 are fixedly connected with connecting rods 45, cavities 46 are formed in the sealing doors 43 and correspond to the positions of the connecting rods 45, opposite side surfaces of the two connecting rods 45 extend inwards through corresponding sliding channels formed in the sealing doors 43 and are connected with the cavities 46 in a sliding manner, the number of the sealing doors 43 is four, the two sealing doors are in a group and are respectively arranged at the left end and the right end of the piston 3, and the opposite side surfaces of the two sealing doors 43 are respectively provided with a sealing gasket 47, the oil control mechanism 4 also comprises two telescopic rods 48, the two telescopic rods 48 are respectively arranged in the rectangular grooves arranged at the left side and the right side of the bottom side of the piston 3, the telescopic rods 49 are fixedly arranged in the rectangular blocks 2 at the lower side through the rectangular grooves, the movable ends of the two first telescopic rods 49 are fixedly connected with the movable end of the telescopic rod 48, the left side and the right side in the shell 1 are both provided with one-way valves 5, the left side and the right side of the upper surface of the shell 1 are both provided with oil inlets 6, the left side and the right side of the lower surface of the shell 1 are both provided with oil outlets 7, and oil inlet 6 and oil-out 7 are the setting of staggering, and the left and right sides in the shell 1 all is fixed the intercommunication have collecting pipe 8, and the equal fixed mounting in the below that just corresponds collecting pipe 8 of the left and right sides of shell 1 lower surface has collecting box 9.

This low-loss stack formula check valve during operation, operating personnel is with hydraulic oil through the input of one side oil inlet 6 behind the shell 1, hydraulic oil forms thrust and has ejecting with piston 3, slider 42 is relative motion in the external control spout 41, it opens to drive the connecting rod 45 in the sealed door 43 cooperation open slot 44, left side telescopic link 49 will correspond telescopic link 48 closed, accomplish airtight back, right side telescopic link 49 is opened telescopic link 48, hydraulic oil passes through in the piston 3 and flows and discharge from opposite side oil-out 7 through the breach that telescopic link 48 opened, partial hydraulic oil is discharged from one side oil-out 7, be provided with collecting pipe 8 in shell 1, when inside has hydraulic oil many and can't get rid of, hydraulic oil can flow out through collecting pipe 8 and get into collecting box 9.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. A low-loss stacked one-way valve comprises a shell (1), and is characterized in that: the center position of shell (1) inner wall all fixedly connected with rectangular block (2), two be provided with piston (3) between rectangular block (2), two all be provided with accuse oily mechanism (4) in rectangular block (2).

2. The low-loss stacked check valve of claim 1, wherein: oil control mechanism (4) are including two spout (41) in, two open the left and right sides in rectangular block (2) in spout (41), two equal sliding connection has slider (42) in spout (41).

3. The low loss stacked one-way valve of claim 1, wherein: still include sealing door (43) in accuse oil mechanism (4), sealing door (43) set up in piston (3) about the upper and lower both sides at both ends set up corresponding open slot (44), the equal fixedly connected with connecting rod (45) of the relative side of open slot (44), just correspond connecting rod (45) position in sealing door (43) and all seted up cavity (46).

4. The low loss stacked one-way valve of claim 3, wherein: the two opposite side surfaces of the connecting rods (45) are provided with corresponding sliding ways through sealing doors (43), extend inwards and are in sliding connection with the cavity (46), the number of the sealing doors (43) is four, the two sealing doors are set into a group and are respectively arranged at the left end and the right end of the piston (3), and the two opposite side surfaces of the sealing doors (43) are provided with sealing gaskets (47).

5. The low loss stacked one-way valve of claim 1, wherein: oil control mechanism (4) still include two telescopic links (48), two telescopic link (48) set up respectively and set up in the left and right sides of piston (3) bottom side and set up the rectangular channel in, are located the downside all through seting up rectangular channel fixed mounting in rectangular block (2) have telescopic link (49), and two the expansion end of telescopic link (49) all with telescopic link (48) expansion end fixed connection.

6. The low loss stacked one-way valve of claim 1, wherein: the oil-saving water tank is characterized in that check valves (5) are arranged on the left side and the right side in the shell (1), oil inlets (6) are formed in the left side and the right side of the upper surface of the shell (1), oil outlets (7) are formed in the left side and the right side of the lower surface of the shell (1), and the oil inlets (6) and the oil outlets (7) are arranged in a staggered mode.

7. The low loss stacked one-way valve of claim 6, wherein: the collecting pipe (8) is fixedly communicated with the left side and the right side in the shell (1), and the collecting boxes (9) are fixedly mounted on the left side and the right side of the lower surface of the shell (1) and below the collecting pipes (8).

Images