CN213332454U

CN213332454U - High-sealing descaling valve

Info

Publication number: CN213332454U
Application number: CN202021833751.9U
Authority: CN
Inventors: 邱定海
Original assignee: Shanghai Lidea Solenoid Valve Co ltd
Current assignee: Shanghai Lidea Solenoid Valve Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2021-06-01
Anticipated expiration: 2030-08-27

Abstract

The utility model relates to a high leakproofness descaling valve, cylinder include body and piston, and the body is including open end and closed end. The piston comprises a piston body and a push rod, a valve core is assembled at the free end of the push rod, and the valve core is arranged in the valve body. The valve body is internally provided with a liquid drainage channel which comprises a liquid inlet cavity, a liquid drainage cavity and a valve core movement cavity which are communicated with each other. The intersection of the three parts forms an opening and closing port. The valve core is assembled in the valve core moving cavity. The valve core movement cavity is provided with a connecting end. The open end and/or the connecting end are/is assembled with a sealing disc, and a push rod sliding groove for the push rod to slide is arranged in the axial direction of the sealing disc. The bottom of the liquid discharge cavity is provided with a liquid storage tank, the bottom of the liquid discharge cavity is provided with an elastic piece, and a stamping piece is fixed on the elastic piece. The area of the sealing disc in contact with the open end and/or the connecting end is provided with a first sealing element. And a second sealing element is arranged at the contact area of the push rod sliding groove and the push rod. And a third sealing element is arranged on the side wall of the valve core. And a fourth sealing element is arranged at the contact area of the stamping part and the liquid expansion groove.

Description

High-sealing descaling valve

Technical Field

The utility model relates to the technical field of valves, especially, relate to a high leakproofness descaling valve.

Background

The descaling valve is widely applied to the metallurgical industry, in the process of hot rolling plates, pipes, bars and the like, iron filings such as oxide scales and the like appear on the surface layer of the descaling valve due to heating, and the descaling valve can be used for removing the impurities, so that the quality of products is improved.

The valve body material of current descaling valve pours the shaping for an organic whole usually, and it presss from both sides sand, gas pocket etc. and appears easily at the fashioned in-process, leads to inside case at the shutoff and the in-process of opening the valve passageway, and the leakproofness of junction is poor, leads to the infiltration of liquid very easily, and presss from both sides sand and can make the valve can not lock completely to influence normal use.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a high-sealing descaling valve, which includes a cylinder and a valve body assembled to the cylinder, wherein the cylinder includes a body and a piston, the body includes an open end butted to the valve body and a closed end departing from the valve body; the piston comprises a piston body sliding in the body and a push rod arranged along the axial direction of the piston body, a valve core is assembled at the free end of the push rod, and the valve core is arranged in the valve body;

a liquid discharge channel is arranged in the valve body and comprises a liquid inlet cavity, a liquid discharge cavity and a valve core movement cavity which are communicated with each other; the intersection of the three parts forms an opening and closing port; the valve core is assembled in the valve core movement cavity; the valve core is used for plugging or opening the opening and closing port under the driving of the cylinder; one end of the valve core motion cavity facing the body is provided with a connecting end butted with the open end;

the open end and/or the connecting end are/is assembled with a sealing disc used for isolating the body and the valve body, and a push rod sliding groove for the push rod to slide is axially arranged on the sealing disc;

a liquid expansion and storage groove is formed in the bottom of the liquid discharge cavity and at a position right opposite to the valve core movement cavity, an elastic part is arranged at the bottom of the liquid discharge cavity, a stamping part is fixed on the elastic part, and the side wall of the stamping part is attached to the side wall of the liquid expansion and storage groove;

wherein the contact area of the sealing disc and the open end and/or the connecting end is provided with a first sealing element; a second sealing element is arranged in the contact area of the push rod sliding groove and the push rod; a third sealing element for plugging the opening and closing port is arranged on the side wall of the valve core; and a fourth sealing element is arranged in the contact area of the stamping part and the liquid expansion groove.

Optionally, an indicator;

the indicating piece comprises a sealing mounting plate, a transparent indicating cover, an indicating rod and a signal part; the sealing mounting plate is arranged on one side, back to the open end, of the closed end along the axial direction of the piston body, an indicating rod sliding hole is formed in the center of the sealing mounting plate, and a sliding hole matched with the indicating rod sliding hole is formed in the closed end; one end of the indicating rod is assembled at one end of the piston body, which is back to the push rod, and the other end of the indicating rod penetrates through the sliding hole and the indicating rod sliding hole and extends to the upper part of the closed end; the signal part is assembled at the upper end of the indicating rod; the transparent indicating cover is assembled on one side, back to the closed end, of the sealing installation plate and used for covering the signal part; and scales are arranged on the transparent indicating cover.

Optionally, a fifth sealing member is provided at a region where the indication rod sliding hole and the indication rod are in contact.

Optionally, the signal part is provided with an LED lamp set.

Optionally, the circumferential side of the upper end surface of the stamping part has an arc-shaped slope.

Optionally, when the stamping part is completely retracted into the liquid storage cavity, the upper end surface of the stamping part and the liquid storage cavity together form a liquid storage part for storing liquid.

Optionally, the liquid inlet cavity and the liquid discharge cavity are arranged in parallel, the liquid inlet cavity is located above the liquid discharge cavity, and the valve element movement cavity is vertically arranged and used for communicating the liquid inlet cavity with the liquid discharge cavity.

Optionally, a first buffer part is arranged on one side of the valve core motion cavity, which is back to the liquid inlet cavity; and a second buffer part is arranged on one side of the valve core motion cavity back to the liquid discharge cavity.

Optionally, the bottom of the valve core moving cavity is provided with an abutting table for abutting against the valve core to prevent the valve core from moving downwards continuously.

Optionally, the area where the piston body and the body are in contact is provided with a sixth seal.

The embodiment of the utility model provides a technical scheme can include following beneficial effect:

the embodiment of the utility model provides a high leakproofness descaling valve, under the drive of cylinder, the case can be followed case motion chamber and moved from top to bottom to come the shutoff or open the opening and shutting mouth, make to be in the state of shutoff or intercommunication between feed liquor chamber and the flowing back chamber. The sealing disk is assembled to the open end and/or the connecting end for isolating the body and the valve body from each other so that there is no communication therebetween. The side wall of the stamping part is jointed with the side wall of the liquid expanding and storing groove, so that no gap exists at the joint of the stamping part and the liquid expanding and storing groove. Under the stamping of the liquid medium in the liquid discharge channel, the stamping part moves up and down along the height direction of the liquid expansion groove under the action of pressure. When the stamping part is completely contracted in the liquid expansion groove, the upper end surface of the stamping part and the liquid expansion groove together form a liquid storage part for storing a liquid medium. So, because stock solution portion and flowing back chamber are linked together, can effectively enlarge the storage space in flowing back chamber, prevent that the inside velocity of flow of flowing back passageway is too urgent and cause the damage of valve. The contact area of the sealing disc and the open end and/or the connecting end is provided with a first sealing element, and the contact area of the push rod sliding groove and the push rod is provided with a second sealing element, so that the medium interpenetration between the body and the valve body can be prevented. The side wall of the valve core is provided with a third sealing element for plugging the opening and closing port, so that the liquid media can be prevented from mutually permeating when the liquid inlet cavity and the liquid outlet cavity are in a closed state. The contact area of the stamping part and the liquid expansion groove is provided with a fourth sealing part, so that the liquid medium in the liquid storage part can be prevented from permeating into the bottom of the liquid expansion groove from the side wall of the stamping part.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention as claimed.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of a high-sealing descaling valve provided by an embodiment of the present invention;

FIG. 2 is a schematic view of the valve body of FIG. 1 in one state;

FIG. 3 is a schematic view of the valve body of FIG. 1 in another configuration;

FIG. 4 is a schematic assembled view of the piston and valve core of FIG. 1;

FIG. 5 is a schematic structural view of the seal mounting plate shown in FIG. 1;

FIG. 6 is a schematic view of the seal disk of FIG. 1.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by those of ordinary skill in the art to which the invention belongs. The use of the terms "a" or "an" and the like in the description and in the claims does not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

Fig. 1 is a schematic structural diagram of a descaling valve with high sealing performance according to an embodiment of the present invention. Fig. 2 is a schematic view of the valve body shown in fig. 1 in one state. Fig. 3 is a schematic structural view of the valve body shown in fig. 1 in another state. Fig. 4 is a schematic view of the piston and the valve core shown in fig. 1 assembled together. Fig. 5 is a schematic structural view of the seal mounting plate shown in fig. 1. FIG. 6 is a schematic view of the seal disk of FIG. 1.

Referring to fig. 1 to 6, an embodiment of the present invention provides a high-sealing descaling valve 100, which includes a cylinder 1 and a valve body 2 assembled to the cylinder 1. The cylinder 1 includes a body 11 and a piston 12. The body 11 comprises an open end 111 abutting the valve body 2 and a closed end 112 facing away from the valve body 2. The piston 12 includes a piston body 121 sliding in the body 11, and a push rod 122 disposed along an axial direction of the piston body 121. A valve core 123 is assembled at the free end of the push rod 122, and the valve core 123 is arranged in the valve body 2.

Further, a liquid discharge passage 21 is provided in the valve body 2. The drain passage 21 includes a liquid inlet chamber 211, a drain chamber 212, and a valve element movement chamber 213 that communicate with each other. The intersection of the three forms an opening 214. The liquid inlet cavity 211 and the liquid outlet cavity 212 are arranged in parallel, the liquid inlet cavity 211 is located above the liquid outlet cavity 212, and the valve element moving cavity 213 is vertically arranged and used for communicating the liquid inlet cavity 211 and the liquid outlet cavity 212. The spool 123 is assembled in the spool movement chamber 213. The valve core 123 is used for plugging or opening the opening and closing port 214 under the driving of the cylinder 1. Wherein the transverse cross-sectional profile of the spool motion cavity 213 is adapted to the transverse cross-sectional profile of the spool 123. And the height of the valve core 123 is greater than that of the opening and closing port 214, so that the valve core 123 can completely block the opening and closing port 214. Further, the side wall of the valve body 123 is provided with a third sealing member 53 for sealing the opening/closing port 214, so that the sealing tightness is enhanced. Further, the bottom of the spool movement chamber 213 is provided with an abutment 2131 for abutting against the bottom of the spool 123 when the spool 123 blocks the opening/closing port 214 to prevent the spool 123 from moving further downward. Specifically, the abutment platform 2131 may be an annular structure, but is not limited thereto.

Further, when the valve element 123 opens the opening/closing port 214, the liquid medium can be allowed to flow from the liquid inlet chamber 211 to the liquid outlet chamber 212 through the opening/closing port 214. When the flow rate is high, in order to relieve the impact pressure between the areas where the liquid inlet chamber 211, the opening/closing port 214, and the liquid outlet chamber 212 are in contact, a first buffer portion 2111 may be provided on the side of the valve element movement chamber 213 opposite to the liquid inlet chamber 211. A second buffer 2121 is provided on a side of the valve element movement chamber 213 opposite to the drain chamber 212. Both the first buffer portion 2111 and the second buffer portion 2121 may have a curved arc structure, so that the impact pressure of the liquid medium can be relieved.

Further, an end of the spool movement chamber 213 facing the body 11 is provided with a connection end 215 that abuts the open end 111. The open end 111 and/or the connecting end 215 is assembled with a sealing disk 3 for insulating the body 11 from the valve body 2. The seal disk 3 is provided with a push rod slide groove 31 in the axial direction for sliding the push rod 122. The area of the sealing disc 3 in contact with the open end 111 and/or the connecting end 215 is provided with a first sealing element 51. The area where the push rod sliding groove 31 and the push rod 122 are in contact is provided with a second sealing member 52. In one embodiment, referring to fig. 1-6, the connecting end 215 is provided with a seal plate mounting portion 2151 that mates with the seal plate 3 for mounting the seal plate 3. The first seal 51 is provided on the side wall of the seal plate 3 and attached to the inner wall of the seal plate mounting portion 2151. The second sealing member 52 is embedded in the inner wall of the sliding groove 31 and attached to the sidewall of the push rod 122. By adding the first seal 51 and the second seal 52, the medium is prevented from penetrating into the body 11 and the valve body 2.

The bottom of the liquid discharge cavity 212 is provided with a liquid storage groove 41 at a position right opposite to the valve core movement cavity 213, the bottom of the liquid discharge cavity is provided with an elastic piece 42, a stamping piece 43 is fixed on the elastic piece 42, and the side wall of the stamping piece 43 is attached to the side wall of the liquid storage groove 41. Referring to fig. 1 to 3, the liquid medium flows from the liquid inlet chamber 211 to the liquid outlet chamber 212 through the opening 214, and impacts the stamping part 43 during the flowing process, so that the stamping part 43 moves up and down along the height direction of the liquid expansion slot 41. When the stamping 43 is completely retracted in the liquid expansion tank 41, the upper end surface of the stamping 43 and the liquid expansion tank 41 together form a liquid storage portion 44 for storing a liquid medium. Specifically, in one embodiment, the liquid expansion groove 41 may have a square shape, but is not limited thereto. The elastic member 42 may be a plurality of elastic springs provided at intervals at the bottom of the liquid storage tank 41, but may be any elastic member such as an elastic column, and is not limited thereto. Preferably, the number of the extension springs is four. The stamping part 43 is a square block structure, and the transverse cross section contour of the stamping part is consistent with the opening contour of the liquid expansion groove 41. This makes the four side walls of the stamping 43 fit to the four side walls of the liquid expansion tank 41 without any gap therebetween. The height of the punch 43 is smaller than the height of the liquid-spreading groove 41. At least the upper end face of the stamping 43 protrudes above the upper end of the liquid expansion tank 41 when the expansion spring is in a normal extension state. And when the expansion spring is in a fully compressed state, the upper end of the stamping piece 43 is fully contracted in the liquid expansion groove 41. In this way, when the flow rate is high, the liquid medium will press the stamping 43, so that the stamping 43 moves toward the bottom of the liquid expansion slot 41. And the larger the flow rate, the larger the pressing force, that is, the larger the distance of movement of the pressing member 43 toward the bottom of the liquid reserving chamber 41. In this way, when the stamping 43 is completely retracted in the liquid expansion tank 41, the upper end surface of the stamping 43 and the portion of the liquid expansion tank 41 above the stamping 43 together form a liquid storage portion 44 for storing liquid. Thus, the liquid storage part 44 is communicated with the liquid discharge cavity 212, so that the storage space of the liquid discharge cavity 212 is enlarged, and the damage of the valve caused by too rapid flow velocity in the liquid discharge cavity 212 is prevented. Further, the circumferential side of the upper end surface of the stamping part 43 has an arc slope 431, and the arc slope 431 is in direct contact with the liquid medium, so that the resistance can be reduced. In particular shark fins like car roofs, reduce the effect of drag with the air. The specific size of the arc slope 431 may be set according to the actual application scenario. Further, the area where the pressing member 43 and the liquid expansion groove 41 are in contact is provided with a fourth seal member 54.

Referring to fig. 1-6, the present invention includes an indicator 6. The indicator 6 includes a seal mounting plate 61, a transparent indicator cover 62, an indicator rod 63, and a signal portion 64. The seal mounting plate 61 is disposed on a side of the closed end 112 opposite to the open end 111 in the axial direction of the piston body 121. The center of the sealing and mounting plate 61 is provided with an indication rod sliding hole 611, and the closed end 112 is provided with a sliding hole 1121 matched with the indication rod sliding hole 611. One end of the indicating rod 63 is assembled to one end of the piston body 121 opposite to the push rod 122, and the other end thereof penetrates through the sliding hole 1121 and the indicating rod sliding hole 611 and extends above the closed end 112. The signal section 64 is assembled to the upper end of the indicating rod 63. The transparent indicating cover 62 is assembled on the side of the sealing mounting plate 61 opposite to the closed end 112 and used for covering the signal part 64. Further, an area where the indication rod sliding hole 611 and the indication rod 63 contact is provided with a fifth seal 55.

The cylinder 1 drives the piston body 121 to move, so that the free end of the indicating rod 63 slides in the transparent indicating cover 62 along the axial direction of the transparent indicating cover 62, and whether the opening/closing port 214 is in a completely blocked state can be accurately judged by observing the moving position of the free end of the indicating rod 63 in the transparent indicating cover 62. The signal part 64 can be fixed at the free end of the indicating rod 4 through a nut, and the signal part 64 plays a role of guiding and preventing the indicating rod 63 from deviating from the central shaft direction of the transparent indicating cover 62 due to severe vibration in the operation process. Meanwhile, whether the opening/closing port 214 is completely closed or not can be determined by directly observing the movement position of the signal part 64 in the transparent indication cover 62. Further, the signal portion 64 is provided with an LED lamp group 641 for emitting light, and the transparent indication cover 62 is provided with scales.

The utility model discloses a region that piston body 121 and body 11 contacted is equipped with sixth sealing member 56.

The utility model provides a first sealing member 51, second sealing member 52, third sealing member 53, fourth sealing member 54, fifth sealing member 55 and sixth sealing member 56 all can be the sealing washer, of course, also can be other arbitrary parts that are used for sealed, and the quantity of addding can be set for according to reality, and is not limited to this.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. The invention is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A high-sealing descaling valve comprises a cylinder and a valve body assembled on the cylinder, and is characterized in that,

the cylinder comprises a body and a piston, wherein the body comprises an open end butted with the valve body and a closed end departing from the valve body; the piston comprises a piston body sliding in the body and a push rod arranged along the axial direction of the piston body, a valve core is assembled at the free end of the push rod, and the valve core is arranged in the valve body;

2. The high-sealability descaling valve of claim 1, comprising an indicator;

3. The high-sealability descaling valve according to claim 2, wherein the area where the indicating rod sliding hole contacts the indicating rod is provided with a fifth sealing member.

4. The high-sealability descaling valve according to claim 2, wherein the signal part is provided with an LED lamp set.

5. The high-sealability descaling valve according to claim 1, wherein the circumferential side of the upper end surface of the stamped part has an arc-shaped slope.

6. The high-sealability descaling valve according to claim 1, wherein when the stamping part is fully retracted in the liquid expansion cavity, the upper end surface of the stamping part and the liquid expansion cavity together form a liquid storage part for storing liquid.

7. The high-tightness descaling valve according to claim 1, wherein the liquid inlet cavity and the liquid outlet cavity are arranged in parallel, the liquid inlet cavity is positioned above the liquid outlet cavity, and the valve core movement cavity is vertically arranged and used for communicating the liquid inlet cavity and the liquid outlet cavity.

8. The high-tightness descaling valve according to claim 7, wherein a first buffer part is arranged on one side of the valve core motion cavity, which faces away from the liquid inlet cavity; and a second buffer part is arranged on one side of the valve core motion cavity back to the liquid discharge cavity.

9. The high-sealability descaling valve according to claim 7, wherein the bottom of the valve core moving cavity is provided with an abutting table for abutting against the valve core to prevent the valve core from further moving downwards.

10. The high-sealability descaling valve according to claim 1, wherein the contact area between the piston body and the body is provided with a sixth sealing member.