CN212928894U

CN212928894U - Flow control valve device

Info

Publication number: CN212928894U
Application number: CN202021853169.9U
Authority: CN
Inventors: 李正东
Original assignee: Jiangsu Yichuang Automatic Control Valve Co ltd
Current assignee: Jiangsu Yichuang Automatic Control Valve Co ltd
Priority date: 2020-08-30
Filing date: 2020-08-30
Publication date: 2021-04-09
Anticipated expiration: 2030-08-30

Abstract

The utility model discloses a flow control valve device, which comprises a valve body, the bottom bolt of valve body has the cylinder body, the inside of cylinder body has the gliding piston of vertical direction, the up end fixedly connected with of piston runs through the valve rod of valve body, the inside of valve body has the disk seat, and the both ends of disk seat have feed inlet and the discharge gate of intercommunication, it establishes the valve clack on the valve rod to have the cover on the disk seat, the upper end of valve body has the closing cap of bolt, the center department of closing cap runs through and closes soon and be connected with the bolt. The utility model discloses in, through cylinder body and the piston that sets up, it is comparatively durable to have replaced traditional diaphragm, and the setting of slider is convenient for manually close the aperture of valve and control discharge gate, and the valve rod slides inside the spout of slider, and the valve clack steady motion installs effectual control medium flow, and is stand wear and tear, reduces maintenance and maintenance number of times.

Description

Flow control valve device

Technical Field

The utility model relates to the technical field of valves, especially, relate to a flow control valve device.

Background

The self-operated flow control valve has the function of maintaining the flow passing through the valve constant under the condition that the pressure difference between the inlet and the outlet of the valve changes, so that the flow of a controlled object connected in series with the self-operated flow control valve is maintained constant. However, the existing flow control valve uses a pressure sensing diaphragm, the diaphragm is not wear-resistant, the maintenance is frequent, and the cost of stopping and maintaining the valve is high.

Therefore, the utility model provides a flow control valve device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to solve the above problems, a flow control valve device is proposed.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a flow control valve device comprises a valve body, wherein a cylinder body is bolted at the bottom end of the valve body, a piston sliding in the vertical direction is arranged in the cylinder body, a valve rod penetrating through the valve body is fixedly connected to the upper end face of the piston, a valve seat is arranged in the valve body, a feed inlet and a discharge outlet are communicated with each other at two ends of the valve seat, a valve clack sleeved on the valve rod is arranged on the valve seat, a bolted sealing cover is arranged at the upper end of the valve body, a bolt penetrates through and is connected in a screwing manner with the center of the sealing cover, a filling material arranged in the sealing cover is sleeved on the bolt, a gland connected in a screwing manner with the sealing cover is arranged at the upper end of the filling material, the bolt is movably connected with a sliding block positioned in the valve body through a bearing, a sliding groove and a conducting hole are formed in the vertical direction of the sliding block, a spring sleeved on the valve, the bottom of the cylinder body is provided with an outlet liquid guide channel communicated with the discharge hole.

As a further description of the above technical solution:

the slider carries out ascending slip of vertical direction in the inside of valve body, and the slider is the component of cylinder shape, the slider downstream can close the discharge gate to the position with valve clack butt.

As a further description of the above technical solution:

the inlet liquid guide channel and the outlet liquid guide channel are pore channels formed in the valve body and the cylinder body, the inlet liquid guide channel is located on the upper end face of the piston at the outlet of the cylinder body, and the outlet liquid guide channel is located on the lower end face of the piston at the outlet of the cylinder body.

As a further description of the above technical solution:

the lower end face of the valve clack is provided with a frustum-shaped part, and the valve seat is provided with a groove matched with the valve clack.

As a further description of the above technical solution:

the top end portion of the valve rod is in sliding fit with the sliding groove.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through cylinder body and the piston that sets up, it is comparatively durable to have replaced traditional diaphragm, and the setting of slider is convenient for manually close the aperture of valve and control discharge gate, and the valve rod slides inside the spout of slider, and the valve clack steady motion installs effectual control medium flow, and is stand wear and tear, reduces maintenance and maintenance number of times.

2. The utility model discloses in, the inside of closing cap has stopping and gland for the leakproofness of valve is better, and the bolt is connected with the rotation of slider, has reduced the wearing and tearing between slider and the valve body, and this valve tightness is better.

Drawings

Fig. 1 shows a schematic front view cross-sectional structure diagram provided according to an embodiment of the present invention;

illustration of the drawings:

1. a valve body; 2. a cylinder body; 3. a piston; 4. a valve stem; 5. a valve seat; 6. a valve flap; 7. a slider; 701. a chute; 702. a via hole; 8. sealing the cover; 9. a bearing; 10. a bolt; 11. a filler; 12. a gland; 13. a spring; 14. an inlet drainage channel; 15. an outlet drainage channel; 16. a discharge port; 17. and (4) feeding a material inlet.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a flow control valve device comprises a valve body 1, a cylinder body 2 is bolted at the bottom end of the valve body 1, a piston 3 sliding in the vertical direction is arranged in the cylinder body 2, a valve rod 4 penetrating through the valve body 1 is fixedly connected with the upper end face of the piston 3, a valve seat 5 is arranged in the valve body 1, a feed inlet 17 and a discharge outlet 16 communicated with each other are arranged at two ends of the valve seat 5, a valve clack 6 sleeved on the valve rod 4 is arranged on the valve seat 5, a bolted sealing cover 8 is arranged at the upper end of the valve body 1, a bolt 10 penetrates through and is screwed at the center of the sealing cover 8, a filler 11 arranged in the sealing cover 8 is sleeved on the bolt 10, a gland 12 connected with the sealing cover 8 in a screwing manner is arranged at the upper end of the filler 11, the bolt 10 is movably connected with a slide block 7 positioned in the valve body 1 through a bearing 9, a slide groove 701 and a through hole 702 are arranged, under the action of the elastic force of the spring 13, the piston 3 moves downwards, so that the valve clack 6 is abutted to the valve seat 5 to close the valve, and simultaneously, the medium backflow is prevented, the top end of the cylinder body 2 is provided with an inlet liquid guide channel 14 communicated with a feed inlet 17, and the bottom end of the cylinder body 2 is provided with an outlet liquid guide channel 15 communicated with a discharge outlet 16.

Specifically, as shown in fig. 1, the slider 7 slides in the vertical direction inside the valve body 1, and the slider 7 is a cylindrical member, and the slider 7 moves downward to a position abutting against the valve flap 6 to close the discharge hole 16, abuts against the slider 7 with the valve flap 6 through the bolt 10, and moves to the lowest end, so that the valve is closed.

Specifically, as shown in fig. 1, the inlet liquid guiding channel 14 and the outlet liquid guiding channel 15 are ducts formed in the valve body 1 and the cylinder body 2, the inlet liquid guiding channel 14 is located on the upper end surface of the piston 3 at the outlet of the cylinder body 2, the outlet liquid guiding channel 15 is located on the lower end surface of the piston 3 at the outlet of the cylinder body 2, and the piston 3 is adjusted in the vertical direction by the pressure difference between the feed port 17 and the discharge port 16, so as to control the opening and closing size of the valve flap 6 and the valve seat 5.

Specifically, as shown in fig. 1, the lower end surface of the valve flap 6 has a frustum-shaped portion, the valve seat 5 has a groove adapted to the valve flap 6, the valve flap 6 abuts against the valve seat 5 to seal the valve, the valve flap 6 moves upward to open and close the valve seat 5, and the medium flows from the feed port 17 into the discharge port 16.

Specifically, as shown in fig. 1, the tip end portion of the valve stem 4 is slidably fitted to the chute 701, so that the valve stem 4 and the valve flap 6 are stably moved in the vertical direction.

The working principle is as follows: when the valve is used, a medium enters the valve through the feeding hole 17, the valve clack 6 is pushed open by the flowing pressure of the medium, the valve clack 6 and the valve seat 5 are opened and closed, the opening and closing degree depends on the pressure of the medium, the bottom end of the valve rod 4 is fixed on the piston 3, the piston 3 slides in the cylinder body 2, the top end of the valve rod 4 slides in the chute 701, the valve clack 6 is stable, the position of the sliding block 7 in the vertical direction is adjusted through the bolt 10, the opening degree of the discharging hole 16 is controlled, when the sliding block 7 moves to the lowest end and is abutted against the valve clack 6, the valve is in a closed state, the inlet liquid guide channel 14 and the outlet liquid guide channel 15 are arranged to balance the pressure of the feeding hole 17 and the discharging hole 16, the piston 3 can move up and down under the adjusting action of pressure difference, the opening and closing degree of the valve clack 6 and the valve seat, the opening degree of the discharge port 16 can be changed to control the flow of the medium, and the valve is convenient to use.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A flow control valve device comprises a valve body (1) and is characterized in that a cylinder body (2) is bolted at the bottom end of the valve body (1), a piston (3) which slides in the vertical direction is arranged inside the cylinder body (2), a valve rod (4) penetrating through the valve body (1) is fixedly connected to the upper end face of the piston (3), a valve seat (5) is arranged inside the valve body (1), a feed inlet (17) and a discharge outlet (16) which are communicated with each other are arranged at two ends of the valve seat (5), a valve clack (6) sleeved on the valve rod (4) is arranged on the valve seat (5), a bolted sealing cover (8) is arranged at the upper end of the valve body (1), a bolt (10) is connected to the center of the sealing cover (8) in a penetrating and screwing mode, a filling material (11) installed inside the sealing cover (8) is sleeved on the bolt (10), and a gland (12) connected with the sealing cover (8) in a screwing mode is arranged, bolt (10) have slider (7) that is located valve body (1) inside through bearing (9) swing joint, spout (701) and conducting hole (702) have been seted up in vertical direction in slider (7), the up end of piston (3) has cover to establish spring (13) on valve rod (4), the top of cylinder body (2) has import drain channel (14) that switch on with feed inlet (17), the bottom of cylinder body (2) has export drain channel (15) that switch on with discharge gate (16).

2. A flow control valve device according to claim 1, characterized in that the slide (7) is vertically slidable inside the valve body (1), and that the slide (7) is a cylindrical member, and that the slide (7) is moved downwards into abutment with the valve flap (6) to close the outlet (16).

3. A flow control valve device according to claim 1, characterized in that the inlet liquid guiding channel (14) and the outlet liquid guiding channel (15) are ducts formed in the valve body (1) and the cylinder body (2), the inlet liquid guiding channel (14) is located at the upper end face of the piston (3) at the outlet of the cylinder body (2), and the outlet liquid guiding channel (15) is located at the lower end face of the piston (3) at the outlet of the cylinder body (2).

4. A flow control valve device according to claim 1, characterized in that the lower end surface of the flap (6) has a frustum-shaped portion and the valve seat (5) has a recess adapted to the flap (6).

5. A flow control valve arrangement as claimed in claim 1, characterised in that the top end of the valve stem (4) is in sliding engagement with the slide slot (701).