CN220930216U

CN220930216U - Valve with good sealing performance

Info

Publication number: CN220930216U
Application number: CN202322484618.7U
Authority: CN
Inventors: 吴威建; 洪双飞
Original assignee: Fujian Heima Valve Co ltd
Current assignee: Fujian Heima Valve Co ltd
Priority date: 2023-09-13
Filing date: 2023-09-13
Publication date: 2024-05-10
Anticipated expiration: 2033-09-13

Abstract

The utility model relates to the technical field of valves and discloses a valve with good sealing performance, which comprises a valve body, wherein a sealing body is integrally formed on the valve body, and the upper end of the sealing body is fixedly connected with a valve cover; through the cooperation between valve gap, ladder seal groove, go up sealing plug, down sealing plug and the lead screw, form dual sealing layer through last sealing plug and lower sealing plug, thereby improve the leakproofness between lead screw and the valve gap, avoid long-time use the transportation medium to spill through the rotation department gap of lead screw and valve, thereby improve the leakproofness of valve, improve the life of valve, the gas tightness between main sealing plug and the valve rod when main sealing plug has improved the valve rod lift with inferior sealing plug, inferior sealing plug has improved the leakproofness between sealing body inner chamber and the main sealing plug simultaneously, thereby improve the leakproofness of valve body, avoid transporting the material to get into in the valve gap between material through valve rod and the main sealing plug, thereby improve the leakproofness of valve body.

Description

Valve with good sealing performance

Technical Field

The utility model relates to the technical field of valves, in particular to a valve with good sealing performance.

Background

The valve is a parameter pipeline accessory for opening and closing a pipeline, controlling flow direction, regulating and controlling a conveying medium, can be divided into a shutoff valve, a check valve, a regulating valve and the like according to the functions of the valve, and is a control part in a fluid conveying system and has the functions of stopping, regulating, guiding, preventing backflow, stabilizing pressure, diverting or overflow pressure relief and the like; valves are used in fluid control systems, ranging from the simplest shut-off valves to the various valves used in extremely complex automatic control systems, which are quite numerous in variety and specification;

In the prior art, publication No.: the Chinese utility model content of CN218780774U discloses a valve with good sealing performance. Including the valve body, the both ends of valve body all peg graft there is the framework, and the inner wall of framework is equipped with the filter screen, is equipped with installation mechanism in the framework, and the slot has been seted up to the inner wall of valve body, rotates on the valve body to be connected with the axostylus axostyle, and the bottom of axostylus axostyle runs through the valve body and is equipped with the valve board, and the valve board is connected with the inner wall rotation of valve body, and the top of axostylus axostyle is equipped with the handle, is equipped with indicating mechanism on the valve. The utility model is provided with the filter screen, is convenient for filtering liquid entering the valve body, achieves the purpose of protecting the valve plate, is beneficial to long-term use of the valve body, is matched with the mounting mechanism, achieves the purpose of conveniently disassembling the frame body, is beneficial to cleaning the filter screen regularly, achieves the purpose of keeping the valve unblocked, and achieves the purpose of controlling the liquid flow by being provided with the indicating mechanism, so that the deflection angle condition of the valve plate is convenient to know

The existing valve has the problems of friction loss and the like caused by long-time use, and when the valve is opened, a gap is formed between the screw rod of the control valve and the rotating part of the valve, so that a conveying medium can leak, the problem of poor sealing performance is caused, the sealing performance of the valve is reduced, and therefore, the valve with good sealing performance is required.

Disclosure of utility model

The utility model aims to provide a valve with good sealing performance, which improves the sealing performance of a rotating part of a screw rod and the valve, and avoids leakage of a conveying medium after long-time use, thereby improving the sealing performance of the valve and solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the valve with good sealing performance comprises a valve body, wherein a sealing body is integrally formed on the valve body, the upper end of the sealing body is fixedly connected with a valve cover, two groups of ladder sealing grooves and bearing grooves are formed in the upper surface of the valve cover, a bearing sleeve is embedded in the bearing grooves, and an upper sealing plug and a lower sealing plug are respectively embedded in the two groups of ladder sealing grooves;

The lower extreme of lead screw runs through the valve gap and sets up in the seal body inner chamber, go up sealing plug, bearing housing and lower sealing plug and all overlap and establish in the outside of lead screw, go up the sealing plug setting directly over the bearing housing, the sealing plug setting is under the bearing housing down, the internal diameter of going up sealing plug and the internal diameter of sealing plug down are all less than the external diameter of lead screw.

Preferably, the inner cavity of the sealing body is embedded with a main sealing plug, a plurality of groups of secondary sealing plugs are integrally formed on the outer side of the main sealing plug, the plurality of groups of secondary sealing plugs are arranged at equal intervals, the inner cavity of the sealing body is provided with a limiting ring groove for embedding the plurality of groups of secondary sealing plugs, and the inner cavity of the main sealing plug is slidably inserted with a valve rod.

Preferably, the upper surface of valve rod has been seted up and has been supplied lead screw lower extreme threaded connection screw hole, and two sets of guide way have been seted up to the outside upper end symmetry of valve rod, valve gap inner chamber symmetry is provided with two sets of limit lug, and two sets of limit lug respectively with two sets of guide way sliding connection.

Preferably, the lower end of the valve rod is fixedly connected with a valve plate, the outer diameter of the valve plate is the same as the inner diameter of the sealing body, the valve plate is in sliding connection with the inner cavity of the sealing body, and the axis of the screw rod and the axis of the valve rod are arranged on the same axis.

Preferably, the upper end threaded connection of lead screw has the removable runner, the upper end of main sealing plug is contradicted at the lower surface of valve gap, and the external diameter of main sealing plug is greater than the inner chamber internal diameter of valve gap.

Preferably, one end integrated into one piece of valve body has the hexagonal inlet tube, and the other end integrated into one piece of valve body has the hexagonal outlet pipe, inlet channel, outlet channel and through-hole have been seted up to the valve body inner chamber, and inlet channel and outlet channel are linked together through the through-hole.

Preferably, the valve plate is arranged right above the through hole, the outer diameter of the valve plate is larger than the inner diameter of the through hole, and the axle center of the valve plate and the axle center of the through hole are arranged on the same axle.

Compared with the prior art, the utility model has the beneficial effects that:

1. the valve mainly comprises a valve cover, a stepped sealing groove, an upper sealing plug, a lower sealing plug and a screw rod, wherein the upper sealing plug and the lower sealing plug form a double sealing layer, so that the tightness between the screw rod and the valve cover is improved, a conveying medium is prevented from leaking out through a gap between the screw rod and a rotating part of the valve after long-time use, the tightness of the valve is improved, and the service life of the valve is prolonged.

2. According to the utility model, through the cooperation among the valve rod, the screw rod, the main sealing plug and the secondary sealing plug improve the air tightness between the valve rod and the main sealing plug when the valve rod is lifted, and meanwhile, the secondary sealing plug improves the tightness between the inner cavity of the sealing body and the main sealing plug, so that the tightness of the valve body is improved, and the conveying substances are prevented from entering the valve cover through a gap between the valve rod and the main sealing plug, so that the tightness of the valve body is improved.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the valve body of the present utility model;

FIG. 3 is a schematic cross-sectional view of a valve body according to the present utility model;

FIG. 4 is a schematic view of a valve core according to the present utility model;

Fig. 5 is a schematic view of the main sealing plug structure of the present utility model.

In the figure: 1. a valve body; 2. a hexagonal water inlet pipe; 3. a hexagonal water outlet pipe; 4. a sealing body; 41. a limit ring groove; 5. a valve cover; 51. a bearing groove; 52. a step seal groove; 53. a limit bump; 6. a screw rod; 7. a detachable rotating wheel; 8. a water inlet channel; 9. a water outlet channel; 10. a main sealing plug; 101. a secondary sealing plug; 11. a bearing sleeve; 12. an upper sealing plug; 13. a lower sealing plug; 14. a valve stem; 141. a guide groove; 15. a valve plate; 16. and a through hole.

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. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the valve with good tightness comprises a valve body 1, wherein a sealing body 4 is integrally formed on the valve body 1, the upper end of the sealing body 4 is connected with a valve cover 5, two groups of step seal grooves 52 and bearing grooves 51 are formed in the upper surface of the valve cover 5, a bearing sleeve 11 is embedded in the bearing grooves 51, and an upper sealing plug 12 and a lower sealing plug 13 are respectively embedded in the two groups of step seal grooves 52;

The lead screw 6, the lower extreme of lead screw 6 runs through valve gap 5 and sets up in sealing body 4 inner chamber, and the outside at lead screw 6 is all established to upper seal plug 12, bearing housing 11 and lower sealing plug 13 cover, and upper seal plug 12 sets up directly over bearing housing 11, and lower sealing plug 13 sets up under bearing housing 11, and the internal diameter of upper seal plug 12 and the internal diameter of lower sealing plug 13 are all less than the external diameter of lead screw 6.

The inner chamber of sealing body 4 has inlayed main sealing plug 10, and the outside integrated into one piece of main sealing plug 10 has multiunit secondary sealing plug 101, and multiunit secondary sealing plug 101 is equidistant setting, limit ring groove 41 that supplies multiunit secondary sealing plug 101 to imbed is seted up to the inner chamber of sealing body 4, the inner chamber slip grafting of main sealing plug 10 has valve rod 14, the leakproofness with between the valve rod 14 has been improved through main sealing plug 10, secondary sealing plug 101 has improved the leakproofness between main sealing plug 10 and valve gap 5 and the sealing body 4 simultaneously, thereby the holistic leakproofness of valve has been improved, avoid carrying the material to spill through valve rod 14 through lead screw 6, thereby the wholeness leakproofness has been improved.

The upper surface of valve rod 14 has been offered and has been supplied screw rod 6 lower extreme threaded connection screw hole, and two sets of guide way 141 have been seted up to the outside upper end symmetry of valve rod 14, valve gap 5 inner chamber symmetry is provided with two sets of limit lug 53, and two sets of limit lug 53 respectively with two sets of guide way 141 sliding connection, through screw rod 6 and valve rod 14 threaded connection, drive valve rod 14 when being convenient for screw rod 6 rotates and go up and down, and valve rod 14 and main sealing plug 10 interference fit, the leakproofness when valve rod 14 goes up and down has been improved, stability that valve rod 14 goes up and down has been improved through limit lug 53 and guide way 141.

The lower extreme fixedly connected with valve plate 15 of valve rod 14, and the external diameter of valve plate 15 is the same with the internal diameter of seal body 4, valve plate 15 and the inner chamber sliding connection of seal body 4, the axle center of lead screw 6 and the axle center setting of valve rod 14 are on same axle center, are convenient for seal through-hole 16 through valve plate 15 to through-hole 16 is convenient for adjust the communication area of through-hole 16 and water outlet channel 9 through the lifting height of valve rod 14, thereby control the water yield.

The upper end threaded connection of lead screw 6 has can dismantle runner 7, and the upper end of main sealing plug 10 is contradicted at the lower surface of valve gap 5, and the external diameter of main sealing plug 10 is greater than the inner chamber internal diameter of valve gap 5, is convenient for drive lead screw 6 through dismantling runner 7 and rotates, reduces the manual work and rotates the amount of labour of lead screw 6, saves physical power.

One end integrated into one piece of valve body 1 has hexagonal inlet tube 2, and the other end integrated into one piece of valve body 1 has hexagonal outlet pipe 3, and inlet channel 8, outlet channel 9 and through-hole 16 have been seted up to valve body 1 inner chamber, and inlet channel 8 and outlet channel 9 are linked together through-hole 16, are convenient for be connected valve and pipeline through hexagonal inlet tube 2 and hexagonal outlet pipe 3, have increased the convenience of dismouting.

The valve plate 15 is arranged right above the through hole 16, the outer diameter of the valve plate 15 is larger than the inner diameter of the through hole 16, the axle center of the valve plate 15 and the axle center of the through hole 16 are arranged on the same axis, and the through hole 16 is conveniently closed through the valve plate 15, so that the flow of conveying media is controlled.

During the use, drive lead screw 6 corotation through dismantling runner 7, thereby make lead screw 6 and valve rod 14 threaded connection, spacing lug 53 is spacing to valve rod 14 through guide way 141, thereby drive valve rod 14 and rise, valve plate 15 breaks away from through-hole 16, thereby open the valve, be convenient for carry the medium circulation, when upset can dismantle runner 7, lead screw 6 reversal drive valve rod 14 falls down, make valve plate 15 reclose through-hole 16, accomplish the closure to the valve, when lead screw 6 rotates and valve rod 14 lifts, upper sealing plug 12 and lower sealing plug 13 and lead screw 6 interference fit, and upper and lower dual sealing between lead screw 6 and valve gap 5, improve the leakproofness between lead screw 6 and valve gap 5, thereby improve the life of lead screw 6, simultaneously reduce the wearing and tearing between lead screw 6 and the valve gap 5, improve the life of lead screw 6, avoid long-time use conveying medium to spill through the gap between lead screw 6 and the valve gap 5, simultaneously main sealing plug 10 respectively with sealing body 4 inner chamber and valve rod 14 interference fit, thereby for improving the leakproofness between valve rod 14 and the main sealing plug 10, simultaneously main sealing plug 10 has improved the leakproofness between sealing body 4 and valve gap 5 through multiunit times 101, thereby the leakproofness between main sealing plug 10 and valve gap 10 has been improved, thereby improved the whole life of sealing plug 10 has been improved.

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

Claims

1. The utility model provides a valve that leakproofness is good, includes valve body (1), its characterized in that: the valve body (1) is integrally formed with a sealing body (4), the upper end of the sealing body (4) is fixedly connected with a valve cover (5), two groups of step sealing grooves (52) and bearing grooves (51) are formed in the upper surface of the valve cover (5), a bearing sleeve (11) is embedded in the bearing grooves (51), and an upper sealing plug (12) and a lower sealing plug (13) are respectively embedded in the two groups of step sealing grooves (52);

The screw rod (6), the lower extreme of screw rod (6) runs through valve gap (5) and sets up in sealing body (4) inner chamber, go up sealing plug (12), bearing housing (11) and lower sealing plug (13) and all overlap and establish in the outside of screw rod (6), go up sealing plug (12) and set up directly over bearing housing (11), lower sealing plug (13) set up under bearing housing (11), the internal diameter of going up sealing plug (12) is all less than the external diameter of screw rod (6) with the internal diameter of lower sealing plug (13).

2. A valve with good sealing as claimed in claim 1, wherein: the inner cavity of the sealing body (4) is embedded with a main sealing plug (10), a plurality of groups of secondary sealing plugs (101) are integrally formed in the outer side of the main sealing plug (10), the groups of secondary sealing plugs (101) are arranged at equal intervals, the inner cavity of the sealing body (4) is provided with a limiting ring groove (41) for embedding the groups of secondary sealing plugs (101), and the inner cavity of the main sealing plug (10) is slidably inserted with a valve rod (14).

3. A valve with good sealing as claimed in claim 2, wherein: the upper surface of valve rod (14) has seted up and has supplied screw rod (6) lower extreme threaded connection screw hole, and two sets of guide way (141) have been seted up to the outside upper end symmetry of valve rod (14), valve gap (5) inner chamber symmetry is provided with two sets of limit lug (53), and two sets of limit lug (53) respectively with two sets of guide way (141) sliding connection.

4. A valve with good sealing properties according to claim 3, characterized in that: the lower end of the valve rod (14) is fixedly connected with a valve plate (15), the outer diameter of the valve plate (15) is the same as the inner diameter of the sealing body (4), the valve plate (15) is in sliding connection with the inner cavity of the sealing body (4), and the axle center of the screw rod (6) and the axle center of the valve rod (14) are arranged on the same axle center.

5. A valve with good sealing as claimed in claim 4, wherein: the upper end threaded connection of lead screw (6) has removable runner (7), the upper end of main sealing plug (10) is contradicted in the lower surface of valve gap (5), and the external diameter of main sealing plug (10) is greater than the inner chamber internal diameter of valve gap (5).

6. A valve with good sealing as claimed in claim 4, wherein: one end integrated into one piece of valve body (1) has hexagonal inlet tube (2), and the other end integrated into one piece of valve body (1) has hexagonal outlet pipe (3), inlet channel (8), play water channel (9) and through-hole (16) have been seted up to valve body (1) inner chamber, and inlet channel (8) and play water channel (9) are linked together through-hole (16).

7. A valve with good sealing as claimed in claim 6, wherein: the valve plate (15) is arranged right above the through hole (16), the outer diameter of the valve plate (15) is larger than the inner diameter of the through hole (16), and the axle center of the valve plate (15) and the axle center of the through hole (16) are arranged on the same axle.