CN218954081U

CN218954081U - Self-locking hydraulic valve

Info

Publication number: CN218954081U
Application number: CN202222266398.6U
Authority: CN
Inventors: 吴正清
Original assignee: Shandong Liwei Hydraulic Technology Co ltd
Current assignee: Shandong Liwei Hydraulic Technology Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-05-02
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a self-locking hydraulic valve, which comprises a valve seat, wherein an oil inlet is communicated with the upper surface of the valve seat, and a feed inlet and a discharge outlet are communicated with the lower surface of the valve seat; a valve rod capable of covering the feed inlet is arranged in the valve seat in a sliding manner, a sliding component is arranged between the upper end of the valve rod and the valve seat, and a buffer structure is arranged between the side surface of the valve rod, which is far away from the feed inlet, and the valve seat; a limiting component is arranged between the lower end of the valve rod and the valve seat; the valve seat is provided with a through hole communicated with the limit groove, a threaded neck is arranged below the valve seat and communicated with the through hole, a cover body is connected with the outer side of the threaded neck in a threaded manner, a push block is arranged in the cover body, and the upper end of the push block extends into the through hole. The utility model is convenient for limiting the valve rod and locking the valve rod, and prevents the valve rod from displacement, thereby causing unstable medium flow.

Description

Self-locking hydraulic valve

Technical Field

The utility model relates to the technical field of pressure valves, in particular to a self-locking hydraulic valve.

Background

The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of the pressure distribution valve, is usually combined 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, and mainly controls the position of a valve rod according to the injection amount of the pressure oil during operation so as to change the opening and closing states of the valve. However, due to the flexible movement of the valve rod, the flow rate of the liquid is often unstable without a locking device, or the valve rod is out of control.

Disclosure of Invention

The utility model aims to solve the technical problems that the valve rod is flexible to move, so that the liquid flow rate is unstable and the valve rod is out of control under the condition of no locking device, and provides the hydraulic valve which can lock the valve rod during working and is convenient to unlock.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the self-locking hydraulic valve comprises a valve seat, wherein an oil inlet is communicated with the upper surface of the valve seat, and a feed inlet and a discharge outlet are communicated with the lower surface of the valve seat; the valve seat is internally provided with a valve rod capable of covering the feed inlet in a sliding manner, a sliding assembly is arranged between the upper end of the valve rod and the valve seat, a buffer structure is arranged between the side surface, far away from the feed outlet, of the valve rod and the valve seat, the buffer structure comprises a plurality of sections of telescopic columns, and springs are arranged between the valve rod and the valve seat and outside the telescopic columns; a limiting component is arranged between the lower end of the valve rod and the valve seat, the limiting component comprises a groove arranged at the lower end of the valve rod, a spring II is arranged at the upper end in the groove, a connecting plate is arranged below the spring II, the connecting plate is in sliding connection with the groove, a clamping block is arranged below the connecting plate, the clamping block is larger than the feeding hole, and a limiting groove capable of containing the clamping block is formed in one side, far away from the discharging hole, of the inner bottom surface of the valve seat; the valve seat is provided with a through hole communicated with the limit groove, a threaded neck is arranged below the valve seat and communicated with the through hole, a cover body is connected with the outer side of the threaded neck in a threaded manner, a push block is arranged in the cover body, and the upper end of the push block extends into the through hole.

Compared with the prior art, the utility model has the advantages that: when the pressure oil pushes the valve rod to move and expose the feed inlet, the medium forms a stable loop, and the valve rod is limited to avoid displacement and unstable flow; when unlocking, the limit on the valve rod can be released by only rotating one part, and the device is convenient to operate and simple in structure.

As an improvement, the sliding component comprises a sliding block arranged on the valve rod, and a sliding groove which can be in sliding connection with the sliding block is arranged at the inner upper end of the valve seat.

As an improvement, limit sliding blocks are arranged on two sides of the connecting plate, and limit sliding grooves which can be in sliding connection with the limit sliding blocks are arranged on two sides of the groove in a communicated mode.

As an improvement, the clamping blocks and the limiting grooves are rectangular.

As an improvement, the outer side surface of the cover body is provided with anti-skid patterns.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is an enlarged view of fig. 1 at a in accordance with the present utility model.

Fig. 3 is an enlarged view of the utility model at B in fig. 1.

Fig. 4 is a schematic view of the structure of the cover body of the present utility model.

As shown in the figure: 1. valve seat, 2, oil inlet, 3, feed inlet, 4, discharge gate, 5, valve rod, 6, slider, 7, spout, 8, flexible post, 9, spring, 10, recess, 11, spring two, 12, connecting plate, 13, spacing slider, 14, discharge gate, 15, fixture block, 16, spacing groove, 17, through-hole, 18, threaded neck, 19, lid, 20, ejector pad.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The self-locking hydraulic valve comprises a valve seat 1, wherein an oil inlet 2 is communicated with the upper surface of the valve seat 1, and a feed inlet 3 and a discharge outlet 4 are communicated with the lower surface of the valve seat 1; the valve seat 1 is internally provided with a valve rod 5 which can cover the feed inlet 3 in a sliding manner, so that the feed inlet 3 can be plugged, a sliding assembly is arranged between the upper end of the valve rod 5 and the valve seat 1, the sliding assembly comprises a sliding block 6 arranged on the valve rod 5, the upper end in the valve seat 1 is provided with a sliding groove 7 which can be in sliding connection with the sliding block 6, the sliding block 6 and the sliding groove 7 can enable the valve rod 5 to move more smoothly, the moving route of the valve rod 5 is limited, the valve rod 5 is prevented from being deviated or blocked, a buffer structure is arranged between the side, far away from the feed inlet 4, of the valve rod 5 and the valve seat 1, the buffer structure comprises a plurality of sections of telescopic columns 8, and springs 9 are arranged between the valve rod 5 and the valve seat 1 and outside the telescopic columns 8; a limiting component is arranged between the lower end of the valve rod 5 and the valve seat 1, the limiting component comprises a groove 10 arranged at the lower end of the valve rod 5, a spring II 11 is arranged at the upper end in the groove 10, a connecting plate 12 is arranged below the spring II 11, the connecting plate 12 is in sliding connection with the groove 10, limiting sliding blocks 13 are arranged on two sides of the connecting plate 12, limiting sliding grooves 1 which can be in sliding connection with the limiting sliding blocks 13 are arranged on two sides of the groove 10 in a communicating manner, the connecting plate 12 can be assisted to move, a clamping block 15 is arranged below the connecting plate 12, the clamping block 15 is larger than the feed inlet 3, the clamping block 15 is prevented from entering the feed inlet 3, the subsequent movement is prevented from being influenced, a limiting groove 16 which can contain the clamping block 15 is arranged on one side of the inner bottom surface of the valve seat 1 far away from the discharge port 14, and the clamping block 15 and the limiting groove 16 are rectangular; the valve seat 1 is provided with a through hole 17 communicated with the limit groove 16, a threaded neck 18 is arranged below the valve seat 1 and communicated with the through hole 17, a cover 19 is connected to the outer side of the threaded neck 18 in a threaded manner, anti-slip threads are arranged on the outer side face of the cover 19, the valve seat is convenient to rotate and not easy to slip, a push block 20 is arranged in the cover 19, and the upper end of the push block 20 extends into the through hole 17.

The working principle of the utility model is as follows: when the valve rod 5 is moved to the position of the limit groove 16, the clamping block 15 is sprung into the limit groove 16 under the pushing of the spring II 11, so that the valve rod 15 is limited, the valve rod 15 is prevented from moving randomly in the valve seat 1, and the influence on medium circulation is reduced; when the locking is required to be released, the cover 19 is rotated to move on the threaded neck 18, so that the push block 20 in the cover 19 extends into the limit groove 16 and pushes the clamping block 15 to be separated from the limit groove 16, at the moment, the compressed spring 9 loses restriction, the valve rod 5 is driven to reset, the feed inlet 3 is blocked again, and medium is blocked.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims

1. A self-locking hydraulic valve, characterized in that: the novel oil inlet valve comprises a valve seat (1), wherein an oil inlet (2) is communicated with the upper surface of the valve seat (1), and a feed inlet (3) and a discharge outlet (4) are communicated with the lower surface of the valve seat (1); the valve seat (1) is internally provided with a valve rod (5) capable of covering the feed inlet (3) in a sliding manner, a sliding assembly is arranged between the upper end of the valve rod (5) and the valve seat (1), a buffer structure is arranged between the side surface, away from the discharge hole (4), of the valve rod (5) and the valve seat (1), the buffer structure comprises a plurality of sections of telescopic columns (8), and a spring (9) is arranged between the valve rod (5) and the valve seat (1) and positioned outside the telescopic columns (8); a limiting component is arranged between the lower end of the valve rod (5) and the valve seat (1), the limiting component comprises a groove (10) arranged at the lower end of the valve rod (5), a spring II (11) is arranged at the inner upper end of the groove (10), a connecting plate (12) is arranged below the spring II (11), the connecting plate (12) is in sliding connection with the groove (10), a clamping block (15) is arranged below the connecting plate (12), the clamping block (15) is larger than the feeding hole (3), and a limiting groove (16) capable of accommodating the clamping block (15) is formed in one side, far away from the discharging hole (4), of the inner bottom surface of the valve seat (1); the novel valve seat is characterized in that a through hole (17) is formed in the valve seat (1) and is communicated with the limiting groove (16), a threaded neck (18) is arranged below the valve seat (1) and is communicated with the through hole (17), a cover body (19) is connected to the outer side of the threaded neck (18) in a threaded mode, a push block (20) is arranged in the cover body (19), and the upper end of the push block (20) extends into the through hole (17).

2. A self-locking hydraulic valve as in claim 1, wherein: the sliding assembly comprises a sliding block (6) arranged on a valve rod (5), and a sliding groove (7) which can be in sliding connection with the sliding block (6) is arranged at the inner upper end of the valve seat (1).

3. A self-locking hydraulic valve as in claim 1, wherein: limiting sliding blocks (13) are arranged on two sides of the connecting plate (12), and limiting sliding grooves (14) which can be in sliding connection with the limiting sliding blocks (13) are arranged on two sides of the groove (10) in a communicating mode.

4. A self-locking hydraulic valve as in claim 1, wherein: the clamping blocks (15) and the limiting grooves (16) are rectangular.

5. A self-locking hydraulic valve as in claim 1, wherein: the outer side surface of the cover body (19) is provided with anti-skid patterns.