CN221097546U - Sealing structure of valve - Google Patents

Abstract

The utility model relates to the technical field of valve sealing, in particular to a sealing structure of a valve, which comprises a valve body, wherein connecting pipes are arranged at two ends of the valve body, limiting rings are sleeved on the outer walls of the connecting pipes, inserting pipes are arranged at the outer ends of the connecting pipes, screw caps are sleeved on the limiting rings, a rotatable valve rod is embedded in the middle of the valve body, and a sealing device is sleeved on the valve rod and comprises a sealing cylinder and a sealing plug; this seal structure of valve through setting up sealing tube and valve rod composite connection, and sealing plug and valve rod normal running fit, and the top cap passes through colloid pad and fastening bolt and sealing tube fixed combination, realizes sealing fit to valve rod and valve body junction, sets up the connecting pipe that has the intubate on the valve body to under the nut cooperation that has sealing pad, realize connecting pipe and external nest of tubes installation and carry out sealing protection to juncture, and all cooperate the rubber ring on the intubate, further increase the leakproofness of juncture, reduce gas leakage liquid influence.

Description

Sealing structure of valve

Technical Field

The utility model relates to the technical field of valve sealing, in particular to a sealing structure of a valve.

Background

The valve is a device for controlling various pipelines and mediums such as gas, liquid and gas or liquid containing solid powder in the equipment; the valve is usually composed of a valve body, a valve cover, a valve seat, an opening and closing member, a driving mechanism, a seal, a fastener and the like, and the control function of the valve is realized by changing the flow passage area by driving the opening and closing member to lift, slide, swing or turn by virtue of the driving mechanism or fluid;

The utility model discloses a sealing structure of a valve, which comprises a main body, an upper cover, a valve plate, a screw rod and a rotating wheel, wherein the upper cover is fixedly arranged at the top of the main body through bolts;

According to the technical scheme, the valve plate is driven to lift through the screw rod, the valve is convenient to adjust, the heat insulation plate is arranged to reduce the temperature of the top of the main body, the upper cover, the rotating wheel and the like, the use is convenient, the sealing upper cover is arranged, the sealing filler layer can be compressed through the adjustable sealing upper cover, the gap between the screw rod and the sealing filler layer is prevented from being enlarged, and the sealing performance of the valve is better; but the sealing performance is not convenient to increase at the joint of the valve, the influence of liquid leakage or air leakage cannot be reduced, and the combination installation of the two ends of the valve is not rapid and convenient.

Disclosure of utility model

The utility model aims to provide a sealing structure of a valve, which aims to solve the problems that the sealing structure of the valve with the authority publication number of CN212960157U, which is proposed in the background art, is inconvenient to increase the sealing performance at the joint of the valve, cannot reduce the influence of liquid leakage or air leakage, and is not rapid and convenient to assemble and install at two ends of the valve.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The utility model provides a seal structure of valve, includes the valve body, the valve body both ends all are equipped with the connecting pipe, all overlap on the connecting pipe outer wall and be equipped with the spacing ring, connecting pipe outer end department all is equipped with the intubate, all overlap on the spacing ring and be equipped with the nut, inlay in the middle of the valve body and be equipped with rotatable valve rod, the cover is equipped with sealing device on the valve rod, sealing device includes seal tube and sealing plug, all seted up the arc wall on the intubate outer wall, all be equipped with the rubber ring in the arc wall, the intubate tip is equipped with outer takeover, be equipped with sealed the pad on the nut inner wall, seal tube bottom and valve body welded fastening, sealing plug and valve rod grafting cooperation, just the sealing plug inlays to be established on the valve body, seal tube top is equipped with the top cap.

Preferably, the top cap lower surface is equipped with the colloid pad, and colloid pad and top cap bonding are fixed, the top cap bottom is equipped with a plurality of spliced pole, the mounting hole has been seted up with the spliced pole department of correspondence on the top cap, all be equipped with fastening bolt in the mounting hole, jack has all been seted up with the mounting hole department of correspondence in sealed section of thick bamboo top.

According to the utility model, the top cover is arranged to be in plug-in fit with the sealing cylinder through the rubber pad, so that the stability of combined installation is improved, and the fastening bolt penetrates through the plug and extends to the jack to be in threaded connection with the sealing cylinder, so that the installation tightness of the top cover and the sealing cylinder is improved.

Preferably, the valve rod bottom extends to the valve body, and the valve rod bottom is equipped with hemisphere case, the valve rod rotates with the valve body to be connected, the valve rod top is equipped with the hand wheel, the sealing plug rotates with the valve rod to be connected, just sealing plug and valve body bond fixedly.

According to the utility model, the valve rod is arranged and is matched with the hand wheel to realize the rotation adjustment of the hemispherical valve core, and the valve rod is matched with the sealing plug to increase the tightness between the valve rod and the valve body and reduce the influence of leakage air and liquid from a gap of the valve rod.

Preferably, the connecting pipes are welded and fixed with the valve body, the insertion pipe and the connecting pipes are of an integrated structure, and the rubber ring is clamped and matched with the arc-shaped groove.

According to the utility model, the insertion tube is arranged to facilitate the insertion and installation of the connecting tube and the external tube, and the tightness of the insertion and installation of the insertion tube and the external tube is improved under the cooperation of the rubber ring.

Preferably, the end part of the external pipe is in plug-in fit with the insertion pipe, the screw cap is in sliding connection with the connecting pipe, the sealing gasket is fixedly bonded with the bottom of the screw cap, the other side surface of the sealing gasket is tightly attached to the limiting ring, the screw cap is in plug-in combination with the outer wall of the external pipe, and in combination connection under the fit of internal threads and external threads.

In the utility model, the screw cap is arranged, the tightness of the joint of the cannula and the external connection tube is increased under the cooperation of the sealing gasket and the limiting ring, and the screw cap and the external connection tube are tightly combined, thereby being convenient for manual installation or disassembly cooperation

Preferably, a plurality of anti-slip strips are arranged on the outer wall of the nut, the anti-slip strips are distributed in an annular equidistant mode, and the anti-slip strips and the nut are of an integrated structure.

According to the utility model, the plurality of anti-slip strips are arranged to increase the contact area, so that the friction force is increased to facilitate manual rotation of the nut, and corresponding combination or disassembly matching is performed.

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

1. According to the utility model, the sealing cylinder is combined and connected with the valve rod, the sealing plug is in rotary fit with the valve rod, the top cover is fixedly combined with the sealing cylinder through the rubber gasket and the fastening bolt, so that the sealing fit of the joint of the valve rod and the valve body is realized, the connecting pipe with the insertion pipe is arranged on the valve body, the connection pipe and the external pipe are combined and mounted under the matching of the nut with the sealing gasket, the sealing protection of the joint is realized, and the rubber rings are matched on the insertion pipes, so that the tightness of the joint is further increased, and the influence of leakage of air and liquid is reduced.

2. According to the utility model, the plurality of anti-slip strips are arranged, so that the friction force of the nut is increased, manual rotation adjustment and matching are facilitated, the bottom of the valve rod is matched with the hemispherical valve core to realize valve body flow breaking or communication matching, the valve rod is matched with the hand wheel in a rotating manner, the whole assembly and installation are convenient, and the sealing structure is stable.

Drawings

FIG. 1 is a schematic structural diagram of an integral and external tube combination structure of the present utility model;

FIG. 2 is a schematic view of the overall frame structure of the present utility model;

FIG. 3 is a schematic view of a valve body and connecting tube combination structure according to the present utility model;

FIG. 4 is a schematic view of a nut structure according to the present utility model;

FIG. 5 is a schematic cross-sectional view of a valve body according to the present utility model;

Fig. 6 is a schematic view of the whole cross-sectional structure of the present utility model.

The meaning of each reference sign in the figure is:

1. a valve body;

2. A connecting pipe; 20. a cannula; 200. an arc-shaped groove; 201. a rubber ring; 21. a limiting ring;

3. A screw cap; 30. a sealing gasket; 31. an anti-slip strip;

4. A sealing cylinder; 40. a sealing plug; 41. a jack; 42. a top cover; 420. inserting a column; 421. a mounting hole; 422. a fastening bolt;

5. A valve stem;

6. And (5) an external connecting pipe.

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.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, "a number" means at least two, for example, two, three, etc., unless specifically defined otherwise.

Referring to fig. 1-6, the present embodiment provides a technical solution:

The utility model provides a seal structure of valve, including valve body 1, valve body 1 both ends all are equipped with connecting pipe 2, all overlap on the connecting pipe 2 outer wall and be equipped with spacing ring 21, connecting pipe 2 outer end department all is equipped with intubate 20, all overlap on the spacing ring 21 and be equipped with nut 3, inlay in the middle of the valve body 1 and be equipped with rotatable valve rod 5, the cover is equipped with sealing device on the valve rod 5, sealing device includes seal tube 4 and sealing plug 40, arc wall 200 has all been seted up on the intubate 20 outer wall, all be equipped with rubber ring 201 in the arc wall 200, intubate 20 tip is equipped with outer takeover 6, be equipped with sealing gasket 30 on the nut 3 inner wall, seal tube 4 bottom and valve body 1 welded fastening, sealing plug 40 and valve rod 5 peg graft the cooperation, and sealing plug 40 inlay and establish on valve body 1, seal tube 4 top is equipped with top cap 42.

In this embodiment, a rubber pad is disposed on the lower surface of the top cover 42, and is adhered to and fixed to the top cover 42, a plurality of inserting posts 420 are disposed at the bottom of the top cover 42, mounting holes 421 are formed in the top cover 42 and correspond to the inserting posts 420, fastening bolts 422 are disposed in the mounting holes 421, and insertion holes 41 are formed in the top of the sealing cylinder 4 and correspond to the mounting holes 421.

In the utility model, the top cover 42 is arranged to be in plug-in fit with the sealing cylinder 4 through the rubber pad, so that the stability of combined installation is improved, and the fastening bolts 422 penetrate through the plug posts 420 and extend to the insertion holes 41 to be in threaded connection with the sealing cylinder 4, so that the installation tightness of the top cover 42 and the sealing cylinder 4 is improved.

Further, the bottom of the valve rod 5 extends into the valve body 1, a hemispherical valve core is arranged at the bottom of the valve rod 5, the valve rod 5 is rotationally connected with the valve body 1, a hand wheel is arranged at the top of the valve rod 5, the sealing plug 40 is rotationally connected with the valve rod 5, and the sealing plug 40 is fixedly bonded with the valve body 1.

According to the utility model, the valve rod 5 is arranged, and under the cooperation of the hand wheel, the hemispherical valve core is adjusted in a rotating way, and under the cooperation of the sealing plug 40, the valve rod 5 and the valve body 1 are improved in tightness, so that the influence of leakage of air and liquid from a gap of the valve rod 5 is reduced.

Specifically, the connecting pipe 2 is welded and fixed with the valve body 1, the insertion pipe 20 and the connecting pipe 2 are of an integrated structure, and the rubber ring 201 is clamped and matched with the arc-shaped groove 200.

In the utility model, the insertion tube 20 is arranged to facilitate the insertion and installation matching of the connecting tube 2 and the external connecting tube 6, and the tightness of the insertion and installation of the insertion tube 20 and the external connecting tube 6 is increased under the matching of the rubber ring 201.

It should be noted that, the end of the outer tube 6 is in plug-in fit with the insertion tube 20, the nut 3 is in sliding connection with the connection tube 2, the sealing pad 30 is adhered and fixed to the bottom of the nut 3, the other side surface of the sealing pad 30 is tightly attached to the limiting ring 21, the nut 3 is in plug-in combination with the outer wall of the outer tube 6, and the combination connection is performed under the fit of internal threads and external threads.

In the utility model, the nut 3 is arranged, under the cooperation of the sealing gasket 30 and the limiting ring 21, the tightness of the joint of the cannula 20 and the external connecting pipe 6 is increased, and the nut 3 and the external connecting pipe 6 are tightly combined, so that the manual installation or the disassembly cooperation is convenient

Further, a plurality of anti-slip strips 31 are arranged on the outer wall of the nut 3, the anti-slip strips 31 are distributed in an annular equidistant mode, and the anti-slip strips 31 and the nut 3 are of an integrated structure.

In the utility model, a plurality of anti-slip strips 31 are arranged to increase the contact area, so that the friction force is increased to facilitate manual rotation of the nut 3, and corresponding combination or disassembly fit is performed.

When the sealing structure of the valve of the embodiment is used, a user installs the valve rod 5 with a hand wheel and a hemispherical valve core on the valve body 1, the sealing plug 40 is installed at the junction between the valve rod 5 and the top of the valve body 1 and is tightly inserted on the valve body 1, the bottom of the sealing cylinder 4 is in welding fit with the valve body 1, the top cover 42 is fixedly installed and matched with the sealing cylinder 4 under the matching of the colloid pad and the fastening bolt 422, the connecting pipe 2 with the limiting ring 21 is combined and connected with the valve body 1, the cannula 20 with the arc-shaped groove 200 is combined with the connecting pipe 2, the rubber ring 201 is sleeved in the arc-shaped groove 200, finally, the cannula 20 is in inserting fit with the external connecting pipe 6, the rubber ring 201 increases the tightness of the cannula 20 and the external connecting pipe 6, the nut 3 with the sealing pad 30 is in tight inserting fit with the limiting ring 21, the nut 3 is in threaded connection with the end part of the external connecting pipe 6, the combined tightness is further increased, the whole combined combination is convenient to install, and the nut 3 is in the matching of the anti-slip strip 31, the manual opening is facilitated, and the disassembly and the installation are convenient.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a seal structure of valve, includes valve body (1), valve body (1) both ends all are equipped with connecting pipe (2), all the cover is equipped with spacing ring (21) on connecting pipe (2) outer wall, connecting pipe (2) outer end department all is equipped with intubate (20), all the cover is equipped with nut (3) on spacing ring (21), inlay in the middle of valve body (1) and be equipped with rotatable valve rod (5), the cover is equipped with sealing device on valve rod (5), sealing device includes seal cylinder (4) and sealing plug (40), its characterized in that: arc wall (200) have all been seted up on intubate (20) outer wall, all be equipped with rubber ring (201) in arc wall (200), intubate (20) tip is equipped with outer takeover (6), be equipped with on nut (3) inner wall and seal pad (30), sealed section of thick bamboo (4) bottom and valve body (1) welded fastening, sealing plug (40) are pegged graft with valve rod (5) and are cooperated, just sealing plug (40) inlay and establish on valve body (1), sealed section of thick bamboo (4) top is equipped with top cap (42).

2. The valve sealing structure according to claim 1, wherein: the utility model discloses a sealing device for the automobile, including top cap (42) lower table is equipped with colloid pad, and colloid pad and top cap (42) bond fixedly, top cap (42) bottom is equipped with a plurality of inserted column (420), mounting hole (421) have been seted up with inserted column (420) corresponding department on top cap (42), all be equipped with fastening bolt (422) in mounting hole (421), jack (41) have all been seted up with mounting hole (421) corresponding department in sealing cylinder (4) top.

3. The valve sealing structure according to claim 1, wherein: the valve rod (5) bottom extends to in valve body (1), and valve rod (5) bottom is equipped with hemisphere case, valve rod (5) are connected with valve body (1) rotation, valve rod (5) top is equipped with the hand wheel, sealing plug (40) are connected with valve rod (5) rotation, just sealing plug (40) are fixed with valve body (1) bonding.

4. The valve sealing structure according to claim 1, wherein: the connecting pipe (2) is welded and fixed with the valve body (1), the insertion pipe (20) and the connecting pipe (2) are of an integrated structure, and the rubber ring (201) is clamped and matched with the arc-shaped groove (200).

5. The valve sealing structure according to claim 1, wherein: the end of the external connection pipe (6) is in plug-in fit with the insertion pipe (20), the nut (3) is in sliding connection with the connection pipe (2), the sealing gasket (30) is fixedly bonded with the bottom of the nut (3), the other side surface of the sealing gasket (30) is tightly attached to the limiting ring (21), the nut (3) is in plug-in combination with the outer wall of the external connection pipe (6), and in combination connection is performed under the fit of internal threads and external threads.

6. The valve sealing structure according to claim 5, wherein: the anti-slip nut is characterized in that a plurality of anti-slip strips (31) are arranged on the outer wall of the nut (3), the anti-slip strips (31) are distributed in an annular equidistant mode, and the anti-slip strips (31) and the nut (3) are of an integrated structure.