CN212616699U - Valve rod sealing structure - Google Patents
Valve rod sealing structure Download PDFInfo
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- CN212616699U CN212616699U CN202020687095.XU CN202020687095U CN212616699U CN 212616699 U CN212616699 U CN 212616699U CN 202020687095 U CN202020687095 U CN 202020687095U CN 212616699 U CN212616699 U CN 212616699U
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- sliding sleeve
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Abstract
The utility model relates to the technical field of valves, in particular to a valve rod sealing structure, which comprises a valve body, a valve rod arranged on the valve body, a pressing plate, a steel ball, a spring and a sliding sleeve, wherein the pressing plate compresses a filler between the valve body and the valve rod through a screw rod, the spring and the sliding sleeve are both arranged on the valve body, a channel which runs through the inner peripheral wall and the outer peripheral wall is arranged on the valve body, the steel ball is matched with the channel and is arranged in the channel in a sliding way, the steel ball is positioned between the sliding sleeve and the pressing plate, a clamping groove which is matched with the steel ball is arranged on the pressing plate, a limiting section, a guiding section and a movable section which are sequentially arranged are arranged on the inner peripheral wall of the sliding sleeve, one end of the steel ball protrudes out of the channel and is clamped in the clamping groove, when the valve rod sealing structure is used, the steel ball is controlled, and the packing between the valve body and the valve rod is ensured to be compressed stably and reliably.
Description
Technical Field
The utility model belongs to the technical field of the valve technique and specifically relates to a valve rod sealing structure is related to.
Background
The valve core assembly and the like in the valve body are arranged on the valve rod, and the valve core in the valve body is required to be driven through the valve rod, so that the valve body is controlled to be opened and closed. The valve body passes through the screw rod and fixes the clamp plate, also compresses tightly the filler between valve body and valve rod, receives the vibration when current valve body can make the valve rod appear the pine and take off, appears the filler and can't be compressed tightly and the phenomenon of leakage appears, causes environmental pollution scheduling problem when serious.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to solve the problem that when the existing valve body is vibrated, the valve rod is loosened, the packing cannot be compressed to cause leakage, and the environmental pollution and the like are caused seriously, a valve rod sealing structure is provided.
The utility model provides a technical scheme that its technical problem adopted is: a valve rod sealing structure comprises a valve body, a valve rod arranged on the valve body, a pressing plate, a steel ball, a spring and a sliding sleeve, wherein the pressing plate presses a filler between the valve body and the valve rod through a screw rod, the spring and the sliding sleeve are both arranged on the valve body, a channel penetrating through the inner circumferential wall and the outer circumferential wall is formed in the valve body, the steel ball is matched with the channel and is arranged in the channel in a sliding manner, the steel ball is positioned between the sliding sleeve and the pressing plate, a clamping groove matched with the steel ball is formed in the pressing plate, a limiting section, a guiding section and a movable section are sequentially arranged on the inner circumferential wall of the sliding sleeve, one end of the steel ball protrudes out of the channel and is clamped in the clamping groove, the limiting section is a plane and is contacted with one end, far away from the clamping groove, of the steel ball is always clamped in the clamping groove, the guiding section is, the movable section is also a plane, a gap is formed between the movable section and the steel ball, one end of the sliding sleeve is abutted to the spring, the limiting section on the sliding sleeve is always kept in contact with the steel ball, and the other end of the sliding sleeve is abutted to the pressing plate.
The utility model discloses a sliding sleeve control steel ball card is established or is broken away from the draw-in groove on the clamp plate to the realization is fixed a position of touching on the valve body with the clamp plate, makes the phenomenon of breaking away from completely can not appear in the valve body, has just also guaranteed that the packing between valve body and the valve rod compresses tightly reliable and stable, has avoided the valve body leakage phenomenon to appear.
In order to facilitate the steel balls to be clamped in the clamping grooves on the pressing plate, the clamping grooves are of annular groove structures. The clamping groove is arranged to be of an annular structure, so that the positions of the clamping groove and the steel balls do not need to be specially found, and the steel balls can be automatically clamped in the clamping groove when the pressing plate is inserted to a specified position.
In order to facilitate the installation and the disassembly of the valve body, furthermore, the valve body is connected with a nut in a threaded manner, the nut is in contact with one end of a sliding sleeve, and the sliding sleeve is positioned between the nut and the spring. Through the displacement of nut control sliding sleeve relative clamp plate, just also make the sliding sleeve can be set up the position of touching on the clamp plate, just so make the steel ball completely in the passageway, the installation and the dismantlement of the valve body of being convenient for.
Further, the clamping groove is axially arranged along the valve rod. The clamping groove is axially arranged, so that the pressure plate can have a displacement range, and the pressure plate is guaranteed to compress the filler.
The utility model has the advantages that: the utility model discloses valve rod seal structure establishes or breaks away from the draw-in groove on the clamp plate through sliding sleeve control steel ball card when using, thereby realizes fixing the clamp plate and touch individual position on the valve body, makes the complete separation phenomenon can not appear in the valve body, has just also guaranteed that the packing between valve body and the valve rod compresses tightly reliable and stable, has avoided current valve body to receive the vibration can make the valve rod appear when the pine takes off, appears packing unable by compressing tightly and the phenomenon of leakage appears, causes the problem of environmental pollution scheduling problem when serious.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a front view of the present invention;
fig. 2 is a partially enlarged view of a in fig. 1.
In the figure: 1. the valve comprises a valve body, 2, a valve rod, 3, a pressure plate, 4, a steel ball, 5, a spring, 6, a sliding sleeve, 7, a channel, 8, a clamping groove, 9, a limiting section, 10, a guide section, 11, a movable section, 12, a nut, 13, a filler, 14 and a screw rod.
Detailed Description
The utility model discloses the following embodiment of combining does further detailing:
the utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1-2, a valve rod sealing structure comprises a valve body 1, a valve rod 2 arranged on the valve body 1, a pressing plate 3, a steel ball 4, a spring 5 and a sliding sleeve 6, wherein the pressing plate 3 compresses a filler 13 between the valve body 1 and the valve rod 2 through a screw 14, the spring 5 and the sliding sleeve 6 are both arranged on the valve body 1, the valve body 1 is provided with a channel 7 penetrating through the inner peripheral wall and the outer peripheral wall, the steel ball 4 is matched with the channel 7 and is arranged in the channel 7 in a sliding manner, the steel ball 4 is arranged between the sliding sleeve 6 and the pressing plate 3, the pressing plate 3 is provided with a clamping groove 8 matched with the steel ball 4, the clamping groove 8 is of an annular groove structure, the clamping groove 8 is arranged along the axial direction of the valve rod 2, the inner peripheral wall of the sliding sleeve 6 is provided with a limiting section 9, a guiding section 10 and a movable section 11 which are sequentially arranged, the limiting section 9 is a plane and is in contact with one end, far away from the clamping groove 8, of the steel ball 4, so that the steel ball 4 is always kept clamped in the clamping groove 8, the guide section 10 is an inclined plane, the inclined plane is gradually inclined inwards towards the spring 5 by the sliding sleeve 6, the movable section 11 is also a plane, a gap is formed between the movable section 11 and the steel ball 4, one end of the sliding sleeve 6 is abutted against the spring 5, the limiting section 9 on the sliding sleeve 6 is always kept in contact with the steel ball 4, and the other end of the sliding sleeve 6 is abutted against the pressing plate 3.
The valve body 1 is in threaded connection with a nut 12, the nut 12 is in contact with one end of the sliding sleeve 6, and the sliding sleeve 6 is located between the nut 12 and the spring 5.
When the valve rod sealing structure is installed, firstly, a nut 12 is rotated, the nut 12 drives a sliding sleeve 6 to move on a valve body 1, a steel ball 4 corresponds to a movable section 11 of the sliding sleeve 6, at the moment, a spring 5 is compressed, a pressing plate 3 is placed on the valve body 1, the pressing plate 3 is fixed on the valve body 1 through a screw 14, the screw 14 fixes the pressing plate 3 at a preset position, at the moment, the steel ball 4 corresponds to a clamping groove 8 on the pressing plate 3, the nut 12 is rotated, the sliding sleeve 6 moves upwards under the acting force of the spring 5, the steel ball 4 is in contact with a limiting section 9 through a guide section 10 by the movable section 11 of the sliding sleeve 6, the steel ball 4 is clamped in the clamping groove 8, then the pressing plate 3 is locked and fixed through the screw 14, at the moment, a packing 13 is completely compressed, the steel ball 4 can also move in a small amplitude relative;
when the steel ball bearing is disassembled, the nut 12 can be controlled to drive the sliding sleeve 6 to move towards the spring 5, so that the steel ball 4 can move towards the movable section 11 through the guide section 10 by the limiting section 9, and when the steel ball 4 corresponds to the movable section 11, the screw rod 14 is loosened, the pressing plate 3 is taken down, and the disassembling of the pressing plate 3 is completed.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. The utility model provides a valve rod seal structure, includes valve body (1) and sets up valve rod (2) on valve body (1), its characterized in that: the valve body (1) is provided with a channel (7) which penetrates through the inner peripheral wall and the outer peripheral wall, the steel ball (4) is matched with the channel (7) and is arranged in the channel (7) in a sliding manner, the steel ball (4) is positioned between the sliding sleeve (6) and the pressing plate (3), the pressing plate (3) is provided with a clamping groove (8) which is matched with the steel ball (4), the inner peripheral wall of the sliding sleeve (6) is provided with a limiting section (9), a guide section (10) and a movable section (11) which are sequentially arranged, one end of the steel ball (4) protrudes out of the channel (7) and is clamped in the clamping groove (8), spacing section (9) are the plane and keep away from the one end contact of draw-in groove (8) with steel ball (4) to the realization remains the card all the time with steel ball (4) and establishes in draw-in groove (8), direction section (10) are the inclined plane, the inclined plane is by sliding sleeve (6) to spring (5) gradually inwards slope setting, activity section (11) also are the plane, the clearance has between activity section (11) and steel ball (4), the one end of sliding sleeve (6) is supported and is established on spring (5), and realizes spacing section (9) on sliding sleeve (6) remain all the time and contact with steel ball (4), the other end of sliding sleeve (6) is supported and is established on clamp plate (3).
2. The valve stem sealing structure according to claim 1, wherein: the clamping groove (8) is of an annular groove structure.
3. The valve stem sealing structure according to claim 1, wherein: the valve is characterized in that a nut (12) is connected to the valve body (1) in a threaded mode, the nut (12) is in contact with one end of the sliding sleeve (6), and the sliding sleeve (6) is located between the nut (12) and the spring (5).
4. The valve stem sealing structure according to claim 1, wherein: the clamping groove (8) is axially arranged along the valve rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020687095.XU CN212616699U (en) | 2020-04-29 | 2020-04-29 | Valve rod sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020687095.XU CN212616699U (en) | 2020-04-29 | 2020-04-29 | Valve rod sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212616699U true CN212616699U (en) | 2021-02-26 |
Family
ID=74710937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020687095.XU Active CN212616699U (en) | 2020-04-29 | 2020-04-29 | Valve rod sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212616699U (en) |
-
2020
- 2020-04-29 CN CN202020687095.XU patent/CN212616699U/en active Active
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