CN218818242U

CN218818242U - Right-angle needle valve

Info

Publication number: CN218818242U
Application number: CN202223147235.2U
Authority: CN
Inventors: 余苏康; 唐秀芳
Original assignee: Yichun Technology Hangzhou Co ltd
Current assignee: Yichun Technology Hangzhou Co ltd
Priority date: 2022-11-25
Filing date: 2022-11-25
Publication date: 2023-04-07
Anticipated expiration: 2032-11-25

Abstract

The utility model discloses a right angle needle valve, include the valve body, advance the flow channel, the passageway of effluenting, go up the lumen hole, lower lumen hole, valve gap, valve rod, elasticity ripple pipe box, oil storage intermediate layer, dispersion lubrication hole, proclaim oneself oil filler point, case, revolve wrong handle, necking down recess and elastic sealing circle. The utility model discloses the outside cladding that can make the valve rod sets up sealed lubricating structure, and effective prevention valve rod corrosion card is dead, is provided with auxiliary seal structure at the case position simultaneously, and the phenomenon is revealed to the medium that the wearing and tearing of prevention single case lead to promotes the life of needle type valve.

Description

Right-angle needle valve

Technical Field

The utility model relates to a technical field of needle valve, especially a technical field of right angle needle valve.

Background

The needle valve is a valve which can be accurately adjusted, has wide application range, is an important component in an instrument measurement pipeline system, has the function of opening or cutting off a pipeline passage, and is named because a valve core of the needle valve is a sharp cone which is inserted into a valve seat like a needle. When the existing needle valve rod structure is used, the valve rod is easy to rotate due to lack of lubrication, so that the needle valve is prevented from being used, the needle valve adopts a single valve core for sealing, and after the valve core is abraded, medium leakage is easy to generate inside the needle valve.

Disclosure of Invention

The utility model aims at solving the problem among the prior art, provide a right angle needle type valve, the outside cladding that can make the valve rod sets up sealed lubricating structure, and effective prevention valve rod corrosion card is dead, is provided with auxiliary seal structure at the case position simultaneously, and the phenomenon is revealed to the medium that the single case wearing and tearing of prevention lead to, promotes the life of needle type valve.

In order to achieve the above object, the utility model provides a right angle needle type valve, include the valve body, advance the passageway, the passageway of effluenting, go up the accent, lower chamber hole, valve gap, valve rod, elasticity bellows cover, oil storage intermediate layer, dispersion lubrication hole, from sealing oil filler point, case, twist the handle, necking down recess and elasticity sealing washer soon, the both ends of valve body symmetry respectively are provided with the passageway of advancing and the passageway of effluenting, the valve body middle part is equipped with last chamber hole and the lower chamber hole that is counter bore structure, it is linked together with the passageway of advancing and the passageway of effluenting respectively to go up chamber hole and lower chamber hole, valve gap fixed mounting is at the top of last chamber hole, and threaded mounting has the valve rod on the valve gap, the outside cladding of valve rod is provided with elasticity bellows cover, the inside of elasticity bellows cover is provided with the oil storage intermediate layer, the medial surface of elasticity bellows cover is provided with a plurality of dispersion lubrication holes that are linked together with the oil storage intermediate layer, the lateral surface of elasticity bellows cover is offered and is linked together from sealing oil filler point that seals, the valve rod bottom is equipped with the sealed complex case on the lower chamber hole of cavity, the top of necking down is provided with the diameter of reducing elasticity sealing washer the diameter of elasticity sealing washer.

Preferably, an oil storage sponge is filled in the oil storage interlayer.

Preferably, the number of the dispersion lubricating holes is multiple, and the dispersion lubricating holes are uniformly distributed on the contact surface of the elastic corrugated pipe sleeve and the valve rod in a surrounding mode.

Preferably, the elastic sealing ring is a silicon rubber sealing ring, the outer side surface of the necking groove is a smooth surface, and the inner side surface of the elastic sealing ring is matched with the outer side surface of the necking groove.

Preferably, the upper end and the lower end of the necking groove are both provided with annular limiting steps.

Preferably, the elastic corrugated pipe sleeve is a rubber elastic sleeve, the inner side surface and the outer side surface of the elastic corrugated pipe sleeve are both in a corrugated pipe shape, and the top of the elastic corrugated pipe sleeve is provided with a plugging end cover.

The utility model has the advantages that: the utility model discloses a with the valve body, the inflow passageway, the passageway of effluenting, go up the orifice, lower orifice, the valve gap, the valve rod, the elasticity ripple pipe box, the oil storage intermediate layer, the dispersion lubrication hole, proclaim oneself the oil filler point, the case, revolve wrong handle, necking down recess and elastic sealing ring and combine together, through experimental optimization, the outside cladding that can make the valve rod sets up sealed lubrication structure, it is dead effectively to prevent the valve rod corrosion card, be provided with auxiliary seal structure simultaneously at the case position, the phenomenon is revealed to the medium that the wearing and tearing of prevention single case lead to, promote the life of needle type valve.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural view of a right angle needle valve of the present invention.

In the figure: the valve comprises a valve body 1, a flow inlet channel 2, a flow outlet channel 3, an upper cavity hole 4, a lower cavity hole 5, a valve cover 6, a valve rod 7, an elastic corrugated pipe sleeve 8, an oil storage interlayer 9, a dispersed lubricating hole 10, a self-sealing oil injection hole 11, a valve core 12, a screwing handle 13, a necking groove 14, an elastic sealing ring 15 and an annular limiting step 16.

Detailed description of the preferred embodiments

Referring to fig. 1, the utility model relates to a right angle needle type valve, include valve body 1, inlet channel 2, the passageway 3 of effluenting, go up cavity 4, lower cavity 5, valve gap 6, valve rod 7, elasticity bellows pipe box 8, oil storage intermediate layer 9, dispersion lubrication hole 10, from sealing oil filler point 11, case 12, twist handle 13, necking down recess 14 and elasticity sealing washer 15, the both ends of valve body 1 symmetry respectively are provided with inlet channel 2 and the passageway 3 of effluenting, valve body 1 middle part is equipped with last cavity 4 and lower cavity 5 that is the counter bore structure, it is linked together with inlet channel 2 and the passageway 3 of efflueng respectively to go up cavity 4 and lower cavity 5, valve gap 6 fixed mounting is at the top of last cavity 4, and valve rod 7 is installed to the screw thread on the valve gap 6, the outside cladding of valve rod 7 is provided with elasticity bellows pipe box 8, the inside of elasticity bellows pipe box 8 is provided with oil storage intermediate layer 9, the medial surface of elasticity bellows pipe box 8 is provided with a plurality of ripples dispersion lubrication hole 10 that are linked together with oil storage intermediate layer 9, the diameter of elasticity bellows pipe box 9 sets up the biggest reduction of the diameter 15, the diameter of the outer diameter of twist handle 15 of the cavity 12 and the upper portion of twist down and the cavity 15 of the sealing washer 15 that the cavity 15 that the handle is equipped with oil filler point 12.

Preferably, an oil storage sponge is filled in the oil storage interlayer 9.

Preferably, the number of the dispersion lubrication holes 10 is multiple, and the dispersion lubrication holes 10 are uniformly distributed around the contact surface of the elastic bellows sleeve 8 and the valve rod 7.

Preferably, the elastic sealing ring 15 is a silicone rubber sealing ring, the outer side surface of the necking groove 14 is a smooth surface, and the inner side surface of the elastic sealing ring 15 is matched with the outer side surface of the necking groove 14.

Preferably, the upper end and the lower end of the necking groove 14 are both provided with an annular limiting step 16.

Preferably, the elastic corrugated pipe sleeve 8 is a rubber elastic sleeve, both the inner side surface and the outer side surface of the elastic corrugated pipe sleeve 8 are corrugated pipes, and the top of the elastic corrugated pipe sleeve 8 is provided with a blocking end cover.

The utility model discloses the working process: when the needle valve needs to be switched from the open state to the closed state, the screwing handle 13 is screwed, the valve core 12 moves downwards to block the lower cavity hole 5, the elastic sealing ring 15 moves downwards along with the downward movement to extrude and seal with the lower cavity hole 5, an elastic sealing structure is formed, double sealing is completed, when the needle valve needs to be switched from the closed state to the open state, the screwing handle 13 is screwed, the valve core 12 moves upwards to conduct the lower cavity hole 5, the elastic sealing ring 15 moves upwards along with the upward movement to be separated from the contact with the lower cavity hole 5, opening is completed, and in the process of screwing the screwing handle 13, the elastic corrugated pipe sleeve 8 is extruded and deformed to immerse lubricating oil into the valve rod 7 through the dispersed lubricating hole 10, and lubricating operation of the valve rod 7 is completed.

The utility model discloses a with valve body 1, inflow passageway 2, the passageway 3 of effluenting, go up cavity 4, cavity of resorption hole 5, valve gap 6, valve rod 7, elasticity bellows sleeve 8, oil storage intermediate layer 9, dispersion lubrication hole 10, from sealing oil filler point 11, case 12, twist soon handle 13, necking down recess 14 and elastic sealing ring 15 and combine together, through experimental optimization, the outside cladding that can make valve rod 7 sets up sealed lubricating structure, it dies effectively to prevent the valve rod 7 corrosion card, be provided with auxiliary seal structure simultaneously at case 12 positions, the phenomenon is revealed to the medium that the wearing and tearing of prevention single case 12 lead to, promote the life of needle valve.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model.

Claims

1. A right angle needle valve characterized by: the oil storage valve comprises a valve body (1), an inflow channel (2), an outflow channel (3), an upper cavity hole (4), a lower cavity hole (5), a valve cover (6), a valve rod (7), an elastic corrugated pipe sleeve (8), an oil storage interlayer (9), a dispersed lubricating hole (10), a self-sealing oil filling hole (11), a valve core (12), a screwing handle (13), a necking groove (14) and an elastic sealing ring (15), wherein the two ends of the valve body (1) are respectively and symmetrically provided with the inflow channel (2) and the outflow channel (3), the middle part of the valve body (1) is provided with the upper cavity hole (4) and the lower cavity hole (5) which are in counter bore structures, the upper cavity hole (4) and the lower cavity hole (5) are respectively communicated with the inflow channel (2) and the outflow channel (3), the valve cover (6) is fixedly installed at the top of the upper cavity hole (4), the valve rod (7) is installed on the valve cover (6) in a threaded manner, the outer side cladding of the valve rod (7) is provided with the elastic corrugated pipe sleeve (8), the oil storage interlayer (9) is arranged inside of the elastic corrugated pipe sleeve (8), and the dispersed lubricating hole (10) is communicated with the dispersed lubricating hole (11), valve rod (7) bottom be equipped with the sealed complex case (12) of cavity of resorption hole (5) upper end, the top of valve rod (7) is provided with revolves twist handle (13), the upper portion of case (12) is provided with diameter from the top down necking down recess (14) that gradually reduces, sliding sleeve is equipped with elastic sealing circle (15) on necking down recess (14), the external diameter of elastic sealing circle (15) is greater than the maximum diameter of cavity of resorption hole (5).

2. A right angle needle valve as defined in claim 1, wherein: and an oil storage sponge is filled in the oil storage interlayer (9).

3. A right angle needle valve as defined in claim 1, wherein: the number of the dispersed lubricating holes (10) is multiple, and the dispersed lubricating holes (10) are uniformly distributed on the contact surface of the elastic corrugated pipe sleeve (8) and the valve rod (7) in a surrounding manner.

4. A quarter-needle valve according to claim 1 wherein: the elastic sealing ring (15) is a silicon rubber sealing ring, the outer side surface of the necking groove (14) is a smooth surface, and the inner side surface of the elastic sealing ring (15) is matched with the outer side surface of the necking groove (14).

5. A right angle needle valve as defined in claim 1, wherein: and annular limiting steps (16) are arranged at the upper end and the lower end of the necking groove (14).

6. A right angle needle valve as defined in claim 1, wherein: the elastic corrugated pipe sleeve (8) is a rubber elastic sleeve, the inner side surface and the outer side surface of the elastic corrugated pipe sleeve (8) are both in a corrugated pipe shape, and a plugging end cover is arranged at the top of the elastic corrugated pipe sleeve (8).