CN113108069A

CN113108069A - Regulating valve convenient for regulating opening degree

Info

Publication number: CN113108069A
Application number: CN202110425066.5A
Authority: CN
Inventors: 夏礼达
Original assignee: Zhejiang Gangda Machinery Manufacturing Co ltd
Current assignee: Zhejiang Gangda Machinery Manufacturing Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-07-13
Anticipated expiration: 2041-04-20
Also published as: CN113108069B

Abstract

The invention provides a regulating valve convenient for regulating the opening, which comprises a valve body and a valve rod vertically arranged on the valve body, wherein a valve cavity is arranged in the valve body, an auxiliary hole is arranged in the middle position of the lower end of the valve body and is communicated with the valve cavity, a sleeve is arranged in the auxiliary hole, a filter screen is fixedly connected to the top of the inner side of the sleeve, the lower end of the sleeve is in threaded connection with a plug, an annular clamping groove is arranged on the annular inner wall of the lower side of the auxiliary hole, a clamp spring is assembled on the annular clamping groove and is arranged at the lower end of the plug, an inlet is arranged at the left end of the valve body, a through hole is arranged at the left end of the sleeve, and the inlet is communicated: can utilize the filter screen, filter the medium of flow, effectively prevent that impurity from blockking up the hole of permeating water, promote the result of use of governing valve to utilize jump ring and ring groove, be convenient for clear up the impurity of crossing in the sleeve and filtering, be convenient for maintain and assemble.

Description

Regulating valve convenient for regulating opening degree

Technical Field

The invention relates to an adjusting valve convenient for adjusting the opening degree, belonging to the technical field of adjusting valves.

Background

In the automatic control of modern plants, control valves play a very important role, and the production of these plants depends on the correct distribution and control of the flowing medium. Whether the control is energy exchange, pressure reduction or simple container charging, the regulating valve is usually required to have certain adjustability, and in some special chemical processes, the flow rate of the regulating valve under a small opening degree (20% -30%) is extremely small, and the flow rate of the regulating valve under a large opening degree (75% -85%) is greatly different from that under the small opening degree.

The utility model discloses a chinese utility model patent that publication number is CN211779057U discloses a governing valve convenient to adjust aperture size, the removal through the case comes opening and close of control orifice, thereby change the size of flow, and the flow control scope that the setting of the multilayer throttle portion that sets up can improve the governing valve, the quantity of orifice in each layer of throttle portion reduces to telescopic diapire along the sleeve axial gradually in addition, such setting can be applicable to special operating mode, can realize the regulation of aperture flow, but when the medium flows in the governing valve, if when mixing impurity in the medium, impurity can block up the orifice, and then influence the regulating effect, consequently, need design one kind and be convenient for adjust the governing valve of aperture size and solve above-mentioned problem.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide the regulating valve which is convenient for regulating the opening degree, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention is realized by the following technical scheme: a regulating valve convenient for regulating the opening degree comprises a valve body and a valve rod vertically arranged on the valve body, wherein a valve cavity is arranged in the valve body, an auxiliary hole is formed in the middle position of the lower end of the valve body and is communicated with the valve cavity, the lower end of the valve rod is detachably connected with a valve core head, the valve core head is positioned in the valve body, a vertically arranged groove is formed in the annular end of the valve core head, the annular end of the lower side of the valve rod is connected with a regulating cylinder in a sliding mode, the regulating cylinder is fixed in the valve cavity of the valve body, water permeable holes are uniformly formed in the surface of the regulating cylinder, the lower end of the regulating cylinder is fixedly connected with a valve seat, the valve seat is fixed in the valve cavity of the valve body and extends into the auxiliary hole, a valve seat is installed in a sliding mode at the annular end of the valve core head, a sleeve is, the annular clamping groove is formed in the annular inner wall of the lower side of the auxiliary hole, the clamp spring and the clamp spring are assembled on the annular clamping groove and are arranged at the lower end of the plug, the left end of the valve body is provided with an inlet, the inlet is communicated with the auxiliary hole, the outlet is machined at the right end of the valve body and is communicated with the valve cavity, the sleeve left end is provided with a through hole, and the inlet is communicated with the sleeve through the through hole.

Furthermore, the annular end of the valve rod is connected with a guide cylinder in a sliding mode, the guide cylinder is fixed in a valve cavity of the valve body, and the lower end of the guide cylinder is connected with an adjusting cylinder in a sealing mode.

Furthermore, the middle position of the upper end of the valve core head is fixedly connected with a threaded column, and the middle position of the lower end of the valve rod is provided with a threaded hole and the threaded column is connected with the thread inside the threaded hole in a threaded manner.

Furthermore, the front wall and the rear wall of the inner part of the auxiliary hole are provided with vertically arranged sliding grooves, and the front end and the rear end of the sleeve are fixedly connected with sliding strips which are connected inside the sliding grooves in a sliding mode.

Further, inside rectangle inner chamber and the rectangle inner chamber of seting up of valve body downside is in the import downside, the auxiliary hole runs through the rectangle inner chamber, two closing plates of the inside symmetry sliding connection of rectangle inner chamber, and two closing plates setting both ends about the sleeve, the closing plate deviates from sleeve one end intermediate position fixed connection pull rod, the pull rod sets up in the rectangle inner chamber and extends the valve body outside, the pull rod deviates from the spacing dish of closing plate one end fixed connection and spacing dish is in the valve body outside, set up first elastic component between spacing dish and the valve body, and first elastic component sets up in the pull rod outside.

Furthermore, a plurality of second elastic pieces are arranged on the front side and the rear side of the pull rod, and the second elastic pieces are fixed between one end, departing from the sleeve, of the sealing plate and the side wall of the rectangular inner cavity.

Furthermore, the middle position of one end, facing the sleeve, of one sealing plate is fixedly connected with a longitudinally-arranged semicircular bulge, and the middle position of one end, facing the sleeve, of the other sealing plate is provided with a longitudinally-arranged semicircular clamping groove matched with the semicircular bulge for use.

Furthermore, a sealing element is bonded on the inner wall of the semicircular clamping groove.

The invention has the beneficial effects that: the invention relates to an adjusting valve convenient for adjusting the opening.

1. Can utilize the filter screen, filter the medium of flow, effectively prevent that impurity from blockking up the hole of permeating water, promote the result of use of governing valve, when needs are cleared up, can utilize the instrument to dismantle the jump ring from ring groove, take out end cap and the interior auxiliary hole of sleeve again to dismantle end cap and sleeve, thereby be convenient for clear up the impurity of crossing off in the sleeve, be convenient for maintain and assemble.

2. Can utilize first spring, can make spacing dish and pull rod inwardly moved to make two closing plates along rectangle inner chamber inwardly moved, and then make two closing plates closed, thereby utilize two closing plates to carry out the shutoff to the auxiliary hole, effectively prevent that the medium discharges in a large number in the governing valve, also enable the governing valve and continue to use.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a regulating valve for conveniently regulating the opening of the valve according to the present invention;

FIG. 2 is a sectional view taken along line A-A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a cross-sectional view of a valve core head of a regulator valve of the present invention, the valve core head being convenient for adjusting the opening degree;

FIG. 5 is a cross-sectional view of a sleeve of a regulator valve of the present invention facilitating adjustment of the amount of opening;

FIG. 6 is a schematic view of a seal plate of a regulator valve of the present invention facilitating adjustment of the amount of opening;

FIG. 7 is a schematic view of another seal plate of a regulator valve of the present invention that facilitates adjustment of the amount of opening.

In the figure: 1-valve body, 2-valve rod, 3-adjusting cylinder, 4-water permeable hole, 5-valve core head, 6-groove, 7-filter screen, 8-plug, 9-snap spring, 10-sleeve, 11-inlet, 12-valve seat, 13-valve cavity, 14-outlet, 15-auxiliary hole, 21-guide cylinder, 101-through hole, 102-sealing plate, 103-rectangular inner cavity, 104-pull rod, 105-first spring, 106-limiting disc, 107-second spring, 1021-semicircular bulge and 1022-semicircular clamping groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Referring to fig. 1-7, the present invention provides a technical solution: a regulating valve convenient for regulating the opening degree comprises a valve body 1 and a valve rod 2 vertically arranged on the valve body 1, wherein a valve cavity 13 is arranged in the valve body 1, an auxiliary hole 15 is arranged at the middle position of the lower end of the valve body 1, an installation space is provided for a sleeve 10 through the auxiliary hole 15, the auxiliary hole 15 is communicated with the valve cavity 13, the lower end of the valve rod 2 is detachably connected with a valve core head 5, the valve core head 5 is positioned in the valve body 1, a vertically arranged groove 6 is arranged at the annular end of the valve core head 5, the annular end of the lower side of the valve rod 2 is slidably connected with a regulating cylinder 3, the regulating cylinder 3 is fixed in the valve cavity 13 of the valve body 1, water permeable holes 4 are uniformly arranged on the surface of the regulating cylinder 3, the valve rod 2 can be matched with the water permeable holes 4 on the regulating cylinder 3 for use, so as to realize the regulation of the flow, the lower end of the regulating cylinder 3 is fixedly connected, the sleeve 10 is arranged in the auxiliary hole 15, the sleeve 10 is arranged at the lower end of the valve seat 12, an installation space is provided for the filter screen 7 through the sleeve 10, the filter screen 7 is fixedly connected to the top of the inner side of the sleeve 10, filtering operation is realized through the filter screen 7, the lower end of the sleeve 10 is in threaded connection with the plug 8, the plug 8 extends into the sleeve 10, an opening in the lower portion of the sleeve 10 can be plugged through the plug 8, medium leakage is effectively prevented, an annular clamping groove is formed in the annular inner wall of the lower side of the auxiliary hole 15, the clamping spring 9 is assembled on the annular clamping groove and is arranged at the lower end of the plug 8, when the sleeve 10 needs to be cleaned, the clamping spring 9 can be detached from the annular clamping groove through a tool, so that the limit on the plug 8 is removed, then the plug 8 and the auxiliary hole 15 in the sleeve 10 can be taken out, then the plug 8, the valve body is convenient to maintain and assemble, the inlet 11 is formed in the left end of the valve body 1, the inlet 11 is communicated with the auxiliary hole 15, the outlet 14 is formed in the right end of the valve body 1, the outlet 14 is communicated with the valve cavity 13, the through hole 101 is formed in the left end of the sleeve 10, and the inlet 11 is communicated with the sleeve 10 through the through hole 101.

Specifically, a medium enters an inlet 11 on the valve body 1, enters the sleeve 10 through a through hole 101 of the sleeve 10, and passes through the filter screen 7, at this time, the filter screen 7 filters the medium, effectively prevents impurities from blocking the permeable holes 4, improves the use effect of the regulating valve, when the regulating valve needs to be in a small opening state, the valve rod 2 can enable the valve core head 5 to move downwards and pass through the valve seat 12 to a proper position, at this time, the valve rod 2 can plug the permeable holes 4 with proper number on the regulating cylinder 3, the filtered medium can only flow through the groove 6 on the valve core head 5 and the permeable holes 4 on the regulating cylinder 3, and the number of the permeable holes 4 on the regulating cylinder 3 is small, so that the flow area is small, thereby realizing reliable regulation of small opening flow, when the regulating valve needs to be in a large opening state, the valve rod 2 can enable the valve core head 5 to move upwards, and make the valve core head 5 separate from valve base 12, the valve stem 2 will also plug the appropriate number of permeable holes 4 of the adjusting cylinder 3 at this moment, and the medium after filtering will flow through from the hole on the valve base 12 and the permeable hole 4 opened on the adjusting cylinder 3, and the permeable hole 4 opened on the adjusting cylinder 3 is more in quantity, its area of can flowing is bigger, its flow capacity increases by a wide margin, realize the large opening flow regulation requirement.

As an embodiment of the present invention: the annular end of the valve rod 2 is slidably connected with the guide cylinder 21 and the guide cylinder 21 is fixed in the valve cavity 13 of the valve body 1, the lower end of the guide cylinder 21 is connected with the adjusting cylinder 3 in a sealing manner, specifically, the valve rod 2 can be guided to move through the guide cylinder 21, the inner side wall of the valve rod 2 is also increased to be in close contact with the inner side wall of the valve rod, and better sealing is realized.

As an embodiment of the present invention: the middle position of the upper end of the valve core head 5 is fixedly connected with the threaded column, the middle position of the lower end of the valve rod 2 is provided with the threaded hole, the threaded hole is connected with the threaded column in a threaded manner, and particularly, the valve core head 5 is quickly assembled and disassembled through the threaded column and the threaded hole, so that the assembly and the replacement are convenient.

As an embodiment of the present invention: vertical arrangement's spout is all seted up to two walls around auxiliary hole 15 is inside, through the spout, can provide the direction passageway for the draw runner, inside the spout at the equal fixed connection draw runner in both ends and draw runner sliding connection around sleeve 10, specifically, remove the in-process at sleeve 10, can make sleeve 10's draw runner remove along the spout, realize leading sleeve 10's removal, also can utilize draw runner and spout in addition, can place sleeve 10 location in auxiliary hole 15.

As an embodiment of the present invention: the lower side of the valve body 1 is provided with a rectangular inner cavity 103, the rectangular inner cavity 103 is positioned at the lower side of the inlet 11, an installation space can be provided for the sealing plate 102 through the rectangular inner cavity 103, the auxiliary hole 15 penetrates through the rectangular inner cavity 103, the rectangular inner cavity 103 is internally and symmetrically connected with two sealing plates 102 in a sliding manner, the two sealing plates 102 are arranged at the left end and the right end of the sleeve 10, the sealing plates 102 are fixedly connected with a pull rod 104 at the middle position of one end of the sleeve 10, the sealing plates 102 can be driven to move through the pull rod 104, the pull rod 104 is arranged in the rectangular inner cavity 103 and extends out of the outer side of the valve body 1, one end of the pull rod 104, which is far away from the sealing plates 102, is fixedly connected with a limiting disc 106, the limiting disc 106 is positioned at the outer side of the valve body 1, the pull rod 104 can be moved and also can be limited and, and first spring 105 sets up in the pull rod 104 outside, specifically, when taking out sleeve 10 from auxiliary hole 15, under first spring 105's effect, can make spacing dish 106 inwards move, and then drive pull rod 104 inwards and remove to make two sealing plates 102 inwards move along rectangle inner chamber 103, and then make two sealing plates 102 closed, thereby utilize two sealing plates 102 to carry out the shutoff to auxiliary hole 15, effectively prevent that the medium in the governing valve from discharging in a large number, also enable the governing valve and continue to use.

As an embodiment of the present invention: both sides all set up a plurality of second spring 107 around the pull rod 104, through second spring 107, enable the inside extrusion of closing plate 102, and second spring 107 fixes and deviates from between sleeve 10 one end and the rectangle inner chamber 103 lateral wall at closing plate 102, specifically, utilize second spring 107's elasticity itself for two closing plate 102 of supplementary inwards extrude, promote the shutoff effect to auxiliary hole 15.

As an embodiment of the present invention: the middle position of one sealing plate 102 facing one end of the sleeve 10 is fixedly connected with a longitudinally-arranged semicircular protrusion 1021, one sealing plate 102 can provide an installation carrier for the semicircular protrusion 1021, the middle position of the other sealing plate 102 facing one end of the sleeve 10 is provided with a longitudinally-arranged semicircular clamping groove 1022 matched with the semicircular protrusion 1021 for use, and the other sealing plate 102 can provide an opening carrier for the semicircular clamping groove 1022.

As an embodiment of the present invention: the rubber pad is adhered to the inner wall of the semicircular clamping groove 1022, and specifically, the rubber pad can be used for sealing connection between the two sealing plates 102, so that the sealing effect is improved.

While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a governing valve convenient to adjust aperture size, includes valve body (1) and arranges valve rod (2) on valve body (1) perpendicularly, its characterized in that: a valve cavity (13) is formed in the valve body (1), an auxiliary hole (15) is formed in the middle position of the lower end of the valve body (1), the auxiliary hole (15) is communicated with the valve cavity (13), the lower end of the valve rod (2) is detachably connected with a valve core head (5), the valve core head (5) is located in the valve body (1), a groove (6) which is vertically arranged is formed in the annular end of the valve core head (5), the annular end of the lower side of the valve rod (2) is in sliding connection with an adjusting cylinder (3), the adjusting cylinder (3) is fixed in the valve cavity (13) of the valve body (1), water permeable holes (4) are uniformly formed in the surface of the adjusting cylinder (3), the lower end of the adjusting cylinder (3) is fixedly connected with a valve seat (12), the valve seat (12) is fixed in the valve cavity (13) of the valve body (1) and extends into the auxiliary hole (15), and the valve, the improved filter is characterized in that a sleeve (10) and the sleeve (10) are arranged inside the auxiliary hole (15) and located at the lower end of the valve seat (12), a filter is fixedly connected to the inner side top of the sleeve (10), the lower end of the sleeve (10) is in threaded connection with a plug (8) and the plug (8) extends into the sleeve (10), an annular clamping groove is formed in the annular inner wall of the lower side of the auxiliary hole (15), a clamping spring (9) and a clamping spring (9) are assembled on the annular clamping groove and arranged at the lower end of the plug (8), an inlet (11) and an inlet (11) are formed in the left end of the valve body (1) and communicated with the auxiliary hole (15), a machining outlet (14) and an outlet (14) of the right end of the valve body (1) are communicated with the valve cavity (13), a through hole (101) is formed in the left end of the sleeve (10), and the.

2. The adjusting valve convenient for adjusting the opening degree according to claim 1, wherein: the annular end of the valve rod (2) is connected with a guide cylinder (21) in a sliding mode, the guide cylinder (21) is fixed in a valve cavity (13) of the valve body (1), and the lower end of the guide cylinder (21) is connected with an adjusting cylinder (3) in a sealing mode.

3. The adjusting valve convenient for adjusting the opening degree according to claim 1, wherein: the middle position of the upper end of the valve core head (5) is fixedly connected with a threaded column, and the middle position of the lower end of the valve rod (2) is provided with a threaded hole and the threaded column is connected with the thread inside the threaded hole in a threaded manner.

4. The adjusting valve convenient for adjusting the opening degree according to claim 1, wherein: the inside front and back two walls of auxiliary hole (15) all set up vertical arrangement's spout, both ends are all fixed connection draw runner and draw runner sliding connection inside the spout around sleeve (10).

5. The adjusting valve convenient for adjusting the opening degree according to claim 1, wherein: the improved valve is characterized in that a rectangular inner cavity (103) and a rectangular inner cavity (103) are arranged in the lower side of an inlet (11) inside the lower side of the valve body (1), the auxiliary hole (15) penetrates through the rectangular inner cavity (103), the rectangular inner cavity (103) is symmetrically connected with the two sealing plates (102) in a sliding mode, the two sealing plates (102) are arranged at the left end and the right end of the sleeve (10), the sealing plates (102) deviate from a pull rod (104) fixedly connected with the middle position of one end of the sleeve (10), the pull rod (104) is arranged in the rectangular inner cavity (103) and extends out of the valve body (1), the pull rod (104) deviates from a limiting plate (106) fixedly connected with one end of the sealing plates (102) and the limiting plate (106) and is located outside the valve body (1), a first elastic piece is arranged between the limiting plate (106) and the valve body (1).

6. The adjusting valve convenient for adjusting the opening degree according to claim 5, wherein: a plurality of second elastic pieces are arranged on the front side and the rear side of the pull rod (104), and the second elastic pieces are fixed between one end, deviating from the sleeve (10), of the sealing plate (102) and the side wall of the rectangular inner cavity (103).

7. The adjusting valve convenient for adjusting the opening degree according to claim 5, wherein: one sealing plate (102) faces the middle of one end of the sleeve (10) and is fixedly connected with a semicircular protrusion (1021) which is longitudinally arranged, and the middle of the other sealing plate (102) facing one end of the sleeve (10) is provided with a semicircular clamping groove (1022) which is longitudinally arranged and is matched with the semicircular protrusion (1021) for use.

8. The adjusting valve convenient for adjusting the opening degree according to claim 7, wherein: and a sealing element is adhered to the inner wall of the semicircular clamping groove (1022).