CN219159564U

CN219159564U - Needle valve convenient to flow rate is adjusted

Info

Publication number: CN219159564U
Application number: CN202223272848.9U
Authority: CN
Inventors: 黄道松
Original assignee: Nantong Locke Fluid Equipment Co ltd
Current assignee: Nantong Locke Fluid Equipment Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-06-09
Anticipated expiration: 2032-12-07

Abstract

The utility model discloses a needle valve convenient for adjusting flow, which relates to the technical field of needle valves and comprises a valve body and a mounting plate, wherein an accommodating cavity is formed in the valve body, a limiting block is fixedly arranged at the bottom of the mounting plate, a limiting groove is formed in the top of the valve body, a clamping groove is formed in one side of the limiting block, a limiting mechanism is arranged in the valve body, a screw is connected with the inner thread of the mounting plate, a hand wheel is fixedly connected to the upper end of the screw, a sealing plug is rotatably connected to the lower end of the screw and positioned in the inner cavity of the accommodating cavity, and a connecting rod is fixedly connected to the bottom of the sealing plug, and the needle valve has the beneficial effects that: through the filter screen that sets up, can filter liquid, hold back impurity in the liquid, prevent that aperture and holding the chamber from taking place to block up, improved the flow efficiency of needle valve to through stop gear's setting, the dismantlement of mounting panel can be convenient for, thereby be favorable to the clearance of filter screen.

Description

Needle valve convenient to flow rate is adjusted

Technical Field

The utility model relates to the technical field of needle valves, in particular to a needle valve convenient for flow adjustment.

Background

The needle valve is a fine tuning valve, and the valve plug is in a needle shape and mainly used for adjusting the air flow. The fine tuning valve requires a gradual increase in valve port opening, with continuous fine tuning from closed to open maximum. The needle valve plug can achieve this function. Needle valve plugs are typically made of hardened steel needles, while valve seats are made of soft materials such as tin, copper, etc.

Application number (202021759502. X) discloses a needle valve of adjustable flow, belongs to needle valve technical field, includes: a valve body; a needle seal shaft; the driving rod is connected in the valve body in an axially movable way through threads, and one end of the driving rod is abutted with the top end of the needle-shaped sealing shaft; according to the needle valve capable of adjusting flow, the driving rod moves axially in the valve body to drive the needle sealing shaft to move, and as the driving rod moves through threads, the moving distance is adjustable and controllable, so that the moving distance of the needle sealing shaft is controllable, the front end of the needle sealing shaft moves gradually towards the small hole, the size of an opening of the small hole is changed gradually, and the flow in the small hole is adjusted; the needle-shaped sealing shaft comprises a sealing shaft body and an adjusting needle, the sealing shaft body is connected with the adjusting needle through threads, the adjusting needle is worn for a long time, and the needle-shaped sealing shaft is connected with the sealing shaft body through threads, so that the needle-shaped sealing shaft is convenient to replace, and the cost is saved.

After this patent improves the needle valve, through driving needle seal axle and remove, realized the regulation of flow, but this structure is in the use, and liquid when the inside transport of valve body, when having doped the great granular impurity of volume in the liquid, causes the inside jam of valve body easily, has reduced the flow efficiency of needle valve.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a needle valve convenient for adjusting flow, and solves the problem that the interior of a valve body is easy to be blocked when granular impurities with larger volume are doped in liquid in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a needle valve convenient to flow regulation, includes valve body and mounting panel, the chamber has been seted up to the inside of valve body, the bottom fixed mounting of mounting panel has the stopper, the spacing groove has been seted up at the top of valve body, the draw-in groove has been seted up to one side of stopper, the inside of valve body is provided with stop gear, the inside threaded connection of mounting panel has the screw rod, the upper end fixedly connected with hand wheel of screw rod, the lower extreme of screw rod just is located the inner chamber rotation that holds the chamber and is connected with the sealing plug, the bottom fixedly connected with connecting rod of sealing plug, the bottom fixedly connected with filter screen of connecting rod, the bottom fixedly connected with needle seal axle of filter screen, the both sides of valve body are fixedly connected with inlet pipe and discharging pipe respectively.

Through using above-mentioned technical scheme, can filter liquid through the filter screen that sets up, hold back the impurity in the liquid, prevent that aperture and holding the chamber from taking place to block up, improved the flow efficiency of needle valve to through stop gear's setting, the dismantlement of mounting panel can be convenient for, thereby be favorable to the clearance of filter screen.

Preferably, the limiting mechanism comprises a spring groove, a telescopic spring is fixedly arranged in the spring groove, one end of the telescopic spring is fixedly connected with a clamping block, and the clamping block is matched with the clamping groove.

Through using above-mentioned technical scheme, the fixture block receives the elasticity of extension spring and tightly blocks inside the draw-in groove to fix the mounting panel.

Preferably, one side fixedly connected with first rack of fixture block, the inside rotation of valve body is connected with the pivot, the outside of pivot is fixedly connected with first gear and second gear respectively, first gear and first rack meshing are connected, the inside sliding connection of valve body has the second rack, the second rack is connected with the second gear meshing, the one end fixedly connected with of second rack presses the briquetting.

Through using above-mentioned technical scheme, through pressing the briquetting, control second rack removes, under the meshing connection effect that utilizes second rack and second gear for the pivot rotates, under the meshing connection effect of rethread first gear and first rack, makes the fixture block keep away from the draw-in groove, can demolish mounting panel and screw rod, clears up the impurity that the filter screen was held back.

Preferably, a sealing gasket is arranged at the bottom of the mounting plate.

By using the technical scheme, the tightness between the mounting plate and the valve body is improved, and liquid in the accommodating cavity is prevented from flowing out.

Preferably, the inside of valve body has offered feed channel and ejection of compact way respectively, the feed channel is linked together with holding the chamber, the aperture has been seted up to the inside of valve body, the aperture is linked together with holding the chamber, ejection of compact way is linked together with the aperture.

Through using above-mentioned technical scheme, liquid is carried to the feed channel through the inlet pipe, gets into and holds the chamber, and the filtration of rethread filter screen is held back impurity, gets into the discharge channel through the aperture afterwards, discharges through the discharging pipe at last.

Preferably, the inside sliding connection of hand wheel has the inserted bar, the upper end fixedly connected with pull ring of inserted bar, a plurality of jacks have been seted up at the top of mounting panel, jack and inserted bar looks adaptation, a plurality of jack equidistance annular array.

Through using above-mentioned technical scheme, remove through pull ring control inserted bar for the lower extreme card of inserted bar advances inside one of them jack in mounting panel top, thereby carries out spacingly to the hand wheel, prevents that the hand wheel from taking place not hard up.

The utility model provides a needle valve convenient for adjusting flow, which has the following beneficial effects:

1. this needle valve convenient to adjust flow through the filter screen that sets up, can filter liquid, holds impurity in the liquid and holds, prevents that aperture and holding the chamber from taking place to block up, has improved the flow efficiency of needle valve to through stop gear's setting, the dismantlement of mounting panel can be convenient for, thereby be favorable to the clearance of filter screen.

2. This needle valve convenient to flow regulation removes through pull ring control inserted bar for the lower extreme card of inserted bar advances inside one of them jack in mounting panel top, thereby carries out spacingly to the hand wheel, prevents that the hand wheel from taking place not hard up.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

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

In the figure: 1. a valve body; 2. a feed pipe; 3. a feed channel; 4. a small hole; 5. a discharge channel; 6. a discharge pipe; 7. a needle seal shaft; 8. a filter screen; 9. a connecting rod; 10. a sealing plug; 11. a receiving chamber; 12. a screw; 13. a hand wheel; 14. a pull ring; 15. a mounting plate; 16. a rod; 17. a jack; 18. a sealing gasket; 19. a limiting block; 20. a clamping groove; 21. a limit groove; 22. a clamping block; 23. a spring groove; 24. a telescopic spring; 25. a first rack; 26. a first gear; 27. a rotating shaft; 28. a second gear; 29. a second rack; 30. pressing the blocks.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Embodiment one:

referring to fig. 1 to 3, a needle valve for conveniently adjusting flow comprises a valve body 1 and a mounting plate 15, wherein an accommodating cavity 11 is formed in the valve body 1, a limiting block 19 is fixedly mounted at the bottom of the mounting plate 15, a limiting groove 21 is formed in the top of the valve body 1, a clamping groove 20 is formed in one side of the limiting block 19, a limiting mechanism is arranged in the valve body 1 and comprises a spring groove 23, a telescopic spring 24 is fixedly mounted in the spring groove 23, a clamping block 22 is fixedly connected to one end of the telescopic spring 24, the clamping block 22 is matched with the clamping groove 20, an inclined surface is arranged on one side of the clamping block 22, when the limiting block 19 is clamped into the limiting groove 21, the clamping block 22 is automatically extruded to move towards the direction of the spring groove 23, when the limiting block 19 is completely overlapped with the limiting groove 21, the clamping block 22 is tightly clamped in the clamping groove 20 by the elastic force of the telescopic spring 24, one side of the clamping block 22 is fixedly connected with a first rack 25, the valve body 1 is internally and rotatably connected with a rotating shaft 27, the outer side of the rotating shaft 27 is fixedly connected with a first gear 26 and a second gear 28 respectively, the first gear 26 is in meshed connection with a first rack 25, the inner side of the valve body 1 is in sliding connection with a second rack 29, the second rack 29 is in meshed connection with the second gear 28, one end of the second rack 29 is fixedly connected with a pressing block 30, the second rack 29 is controlled to move by pressing the pressing block 30, the rotating shaft 27 is rotated under the meshed connection effect of the second rack 29 and the second gear 28, the clamping block 22 is separated from the clamping groove 20 under the meshed connection effect of the first gear 26 and the first rack 25, the mounting plate 15 and the screw rod 12 can be removed, impurities trapped by the filter screen 8 are cleaned, the limiting block 19 at the bottom of the mounting plate 15 is clamped into the limiting groove 21 during mounting, the fixture block 22 receives the elasticity of extension spring 24 and tightly blocks in draw-in groove 20 to accomplish the installation to mounting panel 15, the inside threaded connection of mounting panel 15 has screw rod 12, the upper end fixedly connected with hand wheel 13 of screw rod 12, the lower extreme of screw rod 12 just is located the inner chamber rotation that holds chamber 11 and is connected with sealing plug 10, the bottom fixedly connected with connecting rod 9 of sealing plug 10, the bottom fixedly connected with filter screen 8 of connecting rod 9, can filter the liquid through the filter screen 8 that sets up, the impurity in the liquid is held back, prevent aperture 4 and hold chamber 11 and take place to block up, the flow efficiency of needle valve has been improved, the bottom fixedly connected with needle seal shaft 7 of filter screen 8, control screw rod 12 through rotating hand wheel 13 rotates, drive sealing plug 10 and needle seal shaft 7 of below and remove, the regulation of flow has been realized, when sealing plug 10 moves to the top of feed channel 3, the flow is the biggest this moment, when needle seal shaft 7 moves to the below, close, the both sides of needle valve body 1 are fixedly connected with inlet pipe 2 and discharging pipe 6 respectively.

Embodiment two:

referring to fig. 1 to 3, a sealing gasket 18 is arranged at the bottom of a mounting plate 15, so that the sealing effect between a valve body 1 and the mounting plate 15 is improved, a feeding channel 3 and a discharging channel 5 are respectively arranged in the valve body 1, the feeding channel 3 is communicated with a containing cavity 11, a small hole 4 is arranged in the valve body 1, the small hole 4 is communicated with the containing cavity 11, the discharging channel 5 is communicated with the small hole 4, liquid is conveyed to the feeding channel 3 through a feeding pipe 2, enters the containing cavity 11, is filtered by a filter screen 8, intercepts impurities, enters the discharging channel 5 through the small hole 4, and is finally discharged through a discharging pipe 6.

Embodiment III:

referring to fig. 1 to 3, an insert rod 16 is slidably connected to the inside of the hand wheel 13, a pull ring 14 is fixedly connected to the upper end of the insert rod 16, a plurality of insertion holes 17 are formed in the top of the mounting plate 15, the insertion holes 17 are matched with the insert rod 16, the insertion holes 17 are in an annular array at equal intervals, the insert rod 16 is controlled to move through the pull ring 14, the lower end of the insert rod 16 is clamped into one of the insertion holes 17 at the top of the mounting plate 15, the hand wheel 13 is limited, and the hand wheel 13 is prevented from loosening.

To sum up, this needle valve convenient to flow regulation, when using, liquid is carried to feed channel 3 through inlet pipe 2, get into and hold chamber 11, the filtration of rethread filter screen 8, hold back the impurity, then get into discharge channel 5 through aperture 4, finally discharge through discharging pipe 6, accessible rotation hand wheel 13 control screw 12 rotates, drive sealing plug 10 and needle seal shaft 7 of below remove, when sealing plug 10 moves to the top of feed channel 3, the flow is biggest at this moment, when needle seal shaft 7 moves to the below, the needle valve is closed, and can move through pull ring 14 control inserted bar 16, make the lower extreme card of inserted bar 16 go into the inside of one of them jack 17 in mounting panel 15 top, thereby carry out spacingly to hand wheel 13, the accessible is pressed pressing briquetting 30, control second rack 29 is moved, under the meshing connection effect of utilization second rack 29 and second gear 28, make pivot 27 rotate under the meshing connection effect of rethread first gear 26 and first gear 25, make fixture block 22 keep away from draw-in groove 20, can remove 15 and screw 12, remove the bottom of the card 15 and the filter screen is held back to 8, the inside of the mounting panel is kept away from to the inside of the mounting panel 21 when the installation recess is tight, thereby the inside of the mounting panel is kept away from to the inside of the mounting panel 20, the inside of the mounting panel is kept away from the jack 20 when the top of the filter screen is kept back the inside of the installation plate is kept back the inside of the installation 21.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Needle valve convenient to adjust flow, including valve body (1) and mounting panel (15), its characterized in that: the inside of valve body (1) has been seted up and has been held chamber (11), the bottom fixed mounting of mounting panel (15) has stopper (19), spacing groove (21) have been seted up at the top of valve body (1), draw-in groove (20) have been seted up to one side of stopper (19), the inside of valve body (1) is provided with stop gear, the inside threaded connection of mounting panel (15) has screw rod (12), the upper end fixedly connected with hand wheel (13) of screw rod (12), the lower extreme of screw rod (12) just is located the inner chamber rotation that holds chamber (11) and is connected with sealing plug (10), the bottom fixedly connected with connecting rod (9) of sealing plug (10), the bottom fixedly connected with filter screen (8) of connecting rod (9), the bottom fixedly connected with needle-like sealed axle (7) of filter screen (8), the both sides of valve body (1) are fixedly connected with inlet pipe (2) and discharging pipe (6) respectively.

2. A needle valve for facilitating flow regulation according to claim 1, wherein: the limiting mechanism comprises a spring groove (23), a telescopic spring (24) is fixedly arranged in the spring groove (23), one end of the telescopic spring (24) is fixedly connected with a clamping block (22), and the clamping block (22) is matched with the clamping groove (20).

3. A needle valve for facilitating flow regulation according to claim 2, wherein: one side fixedly connected with first rack (25) of fixture block (22), the inside rotation of valve body (1) is connected with pivot (27), the outside of pivot (27) is fixedly connected with first gear (26) and second gear (28) respectively, first gear (26) are connected with first rack (25) meshing, the inside sliding connection of valve body (1) has second rack (29), second rack (29) are connected with second gear (28) meshing, the one end fixedly connected with of second rack (29) presses movable block (30).

4. A needle valve for facilitating flow regulation according to claim 1, wherein: the bottom of the mounting plate (15) is provided with a sealing gasket (18).

5. A needle valve for facilitating flow regulation according to claim 1, wherein: the inside of valve body (1) has offered feed channel (3) and ejection of compact way (5) respectively, feed channel (3) are linked together with hold chamber (11), aperture (4) have been seted up to the inside of valve body (1), aperture (4) are linked together with hold chamber (11), ejection of compact way (5) are linked together with aperture (4).

6. A needle valve for facilitating flow regulation according to claim 1, wherein: the inside sliding connection of hand wheel (13) has inserted bar (16), the upper end fixedly connected with pull ring (14) of inserted bar (16), a plurality of jacks (17) have been seted up at the top of mounting panel (15), jack (17) and inserted bar (16) looks adaptation, a plurality of jack (17) equidistance annular array.