CN217234481U - Integral double-blocking double-row ball discharging valve - Google Patents
Integral double-blocking double-row ball discharging valve Download PDFInfo
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- CN217234481U CN217234481U CN202221266105.8U CN202221266105U CN217234481U CN 217234481 U CN217234481 U CN 217234481U CN 202221266105 U CN202221266105 U CN 202221266105U CN 217234481 U CN217234481 U CN 217234481U
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Abstract
The utility model discloses an integral two ball valves that discharge that block up aims at solving among the prior art the poor problem of leakproofness between the valve body of integral two ball valves that discharge that block up and the case, the utility model discloses a following technical scheme solves above-mentioned technical problem, include: the valve comprises a valve body, a first flow passage and a second flow passage are respectively arranged at two ends of the valve body; the valve core is arranged in the valve body; the valve body is provided with a through hole, and the valve rod penetrates through the through hole to be connected with the valve core; the upper sealing block is arranged at the upper end of the valve core, and an upper spring is abutted between the upper sealing block and the valve body; the lower sealing block is arranged at the lower end of the valve core, and a lower spring is connected between the lower sealing block and the valve body in a butting mode. The upper end and the lower extreme of case set up sealed piece and lower sealed piece respectively, and through the cooperation of last spring and lower spring, the effectual liquid that has prevented when the valve is closed is outwards revealed from the case, has improved the sealing performance between case and the valve body.
Description
Technical Field
The utility model relates to a double ball valve technical field of putting, in particular to integral two jam double discharge ball valves.
Background
The valve is a parameter pipeline accessory used for opening and closing a pipeline, controlling the flow direction, adjusting and controlling the conveying medium, and can be divided into a shut-off valve, a check valve, an adjusting valve and the like according to the functions of the valve. Valves for fluid control systems, from the simplest shut-off valves to the various valves used in extremely complex autonomous systems, are of a rather wide variety and specification; the double-blocking double-discharge ball valve is one of a plurality of valves.
The double-blocking double-row ball valve is widely applied to hydraulic system pipelines in various industries such as electric power, petrochemical industry, metallurgy, ocean, natural gas, coal gas, pharmacy and the like. Among the prior art, the sealed effect of two discharge ball valves of two jam at valve ball and valve body junction is general, produce the seepage easily, make the liquid in the ball valve reveal easily, valve rod and the sealed effect of valve body junction on the current valve ball are poor simultaneously, and, current ball valve lacks the device of putting out the liquid in the valve body, make the inboard liquid of valve body can't be put out and detect, and simultaneously, the valve body and the dwang of current ball valve are connected through rotating, make liquid be in the valve rod contact from the dwang easily, make the valve rod take place to corrode, the life of valve rod has been influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two ball valves that discharge of integral two jam aims at solving the poor problem of leakproofness between the inside valve body of two jam two discharge ball valves and the case among the prior art.
In order to achieve the above object, the utility model provides an integral two blocks up two discharge ball valves, include:
the valve comprises a valve body, a first flow passage and a second flow passage, wherein the first flow passage and the second flow passage are respectively arranged at two ends of the valve body;
the valve core is arranged in the valve body;
the valve body is provided with a through hole, and the valve rod penetrates through the through hole to be connected with the valve core;
the upper sealing block is arranged at the upper end of the valve core, and an upper spring is abutted between the upper sealing block and the valve body;
and the lower sealing block is arranged at the lower end of the valve core, and a lower spring is abutted between the lower sealing block and the valve body.
The utility model discloses a set up sealed piece and lower sealed piece respectively in the upper end of case and lower extreme to will go up the tight butt of sealed piece in the upper end of case through last spring, will seal down the piece butt at the lower extreme of case through lower spring simultaneously, effectually prevented that liquid outwards reveals from the case when the valve is closed, improved sealing performance between case and the valve body. Meanwhile, the valve core can be more stable when rotating through the matching of the upper sealing block and the lower sealing block, the contact and impact between liquid and the valve core are reduced, and the valve core is protected to a certain extent.
Furthermore, the upper sealing block is provided with an upper sealing spherical surface matched with the valve core; the lower sealing block is provided with a lower sealing spherical surface matched with the valve core.
Furthermore, a first annular groove is formed in the circumferential direction of the bottom end of the through hole, a first convex ring is arranged on the upper end face of the upper sealing block, the upper end of the upper spring is abutted against the first annular groove, and the lower end of the upper spring is abutted against the first convex ring;
the lower end face of the lower sealing block is provided with a second annular groove, the upper end of the lower spring is abutted to the second annular groove, and the lower end of the lower spring is abutted to the inside of the valve body.
Furthermore, a limiting ring is arranged in the circumferential direction of the inner wall of the through hole, and a convex ring matched with the limiting ring is arranged in the circumferential direction of the valve rod.
Furthermore, a lower bearing is arranged between the lower end face of the convex ring and the limiting ring, and an upper bearing is arranged on the upper end face of the convex ring.
Furthermore, a sewage draining outlet is formed in the bottom end of the valve body, and a sewage draining cover is in threaded connection with the sewage draining outlet.
Further, the bottom end of the valve body is obliquely arranged towards the sewage draining port.
The utility model has the advantages of it is following: (1) the upper end and the lower end of the valve core are respectively provided with the upper sealing block and the lower sealing block, and through the matching of the upper spring and the lower spring, liquid is effectively prevented from leaking outwards from the valve core when the valve is closed, and the sealing performance between the valve core and the valve body is improved; (2) the upper bearing and the lower bearing can reduce the friction force when the valve rod rotates, and reduce the resistance when the valve rod rotates. The sensitivity of the valve rod during rotation is improved; (3) set up the drain for liquid can conveniently be emitted from the drain and detect.
Drawings
Fig. 1 is a cross-sectional view of the internal structure of the present invention;
FIG. 2 is an enlarged view of a portion of area A of FIG. 1;
FIG. 3 is an enlarged view of a portion of the area B in FIG. 1;
FIG. 4 is an enlarged view of a portion of region C of FIG. 1;
FIG. 5 is a perspective view of the present invention;
the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1: referring to fig. 1 to 5, an integral double-clogging double-discharge ball valve includes a first ball valve and a second ball valve, the first ball valve and the second ball valve are identical in structure, so that only the first ball valve will be described, and the structure of the first ball valve includes:
the valve comprises a valve body 1, wherein a first flow passage 11 and a second flow passage 12 are respectively arranged at two ends of the valve body 1, the first flow passage 11 and the second flow passage 12 are connected with the valve body 1G through bolts 13, and abutting rings (not marked in the figure) are arranged between the first flow passage 11 and the valve body 1 and between the second flow passage 12 and the valve body 1;
the valve core 2 is arranged in the valve body 1, and the valve core 2 is a spherical valve core;
the valve body 1 is provided with a through hole 14, the lower end of the valve rod 3 penetrates through the through hole 14 to be connected with the valve core 2, and the upper end of the valve rod 3 is fixedly connected with an operating handle;
an upper sealing block 4 (shown in fig. 2) disposed at the upper end of the valve element 2, wherein an upper spring 41 is abutted between the upper sealing block 4 and the valve body 1; the upper sealing block 4 is provided with an upper sealing spherical surface 42 matched with the valve core 2, the upper sealing spherical surface 42 is provided with a flexible sealing layer, and the flexible sealing layer can be arranged by adopting materials such as rubber, flocking layers and the like; a first annular groove 15 is formed in the circumferential direction of the bottom end of the through hole 14, a first convex ring 43 is arranged on the upper end surface of the upper sealing block 4, the upper end of the upper spring 41 is abutted against the first annular groove 15, and the lower end of the upper spring 41 is abutted against the first convex ring 43;
a lower sealing block 5 (see fig. 3) disposed at a lower end of the valve element 2, wherein a lower spring 51 is abutted between the lower sealing block 5 and the valve body 1; the lower sealing block 5 is provided with a lower sealing spherical surface 52 matched with the valve core 2; the lower sealing spherical surface 52 is provided with a flexible sealing layer which can be made of rubber, flocking layers and other materials; the lower end surface of the lower sealing block 5 is provided with a second annular groove 53, the upper end of the lower spring 51 is abutted against the second annular groove 53, and the lower end of the lower spring 51 is abutted against the bottom end of the valve body 1.
In the embodiment, the upper sealing block 4 and the upper spring 41 are arranged to cooperate, so that the upper sealing block 4 can be tightly abutted against the valve core 2, the sealing performance between the valve core 2 and the valve body 1 is better, liquid is effectively prevented from leaking from the valve core 2 to the outside, the upper end of the upper spring 41 is abutted against the first annular groove 15, the lower end of the upper spring 41 is abutted against the first convex ring 43, and the upper spring 41 can be stably supported between the valve body 1 and the upper sealing block 4; similarly, the lower sealing block 5 and the lower spring 51 are matched, so that the lower sealing block 5 can be tightly abutted against the lower end of the valve core 2, the sealing performance between the valve core 2 and the valve body 1 is better, liquid is effectively prevented from leaking outwards from the valve core 2, the upper end of the lower spring 42 is abutted against the second annular groove 53, and the lower end of the lower spring 51 is abutted against the bottom end of the valve body 1, so that the lower spring 51 can be stably supported between the valve body 1 and the lower sealing block 5; through the cooperation of upper seal block 4 and lower seal block 5 for the sealing performance between case 2 and the valve body 1 is better.
Example 2: referring to fig. 1 or fig. 4, this embodiment has a structure similar to that of embodiment 1, except that a limiting ring 141 is disposed in the circumferential direction of the wall of the through hole 14, and a convex ring 31 matched with the limiting ring 141 is disposed in the circumferential direction of the valve rod 3; a lower bearing 142 is arranged between the lower end face of the convex ring 31 and the limiting ring 141, and an upper bearing 143 is arranged on the upper end face of the convex ring 31; a limit cover 16 connected by screw threads is arranged above the through hole 14, the valve rod 3 penetrates through the limit cover 16, the bottom end of the limit cover 16 is abutted with the upper bearing 143, the upper bearing 143 is abutted on the upper end surface of the convex ring 31 through the limit action of the bottom end of the limit cover 16, and the upper bearing 143 and the lower bearing 142 are both plane thrust ball bearings in the embodiment; to further improve the sealing performance, an upper sealing ring 144 is provided between the upper bearing 142 and the stopper cover 16, and a lower sealing ring 145 is provided between the lower bearing 142 and the stopper ring 141.
The working principle of the embodiment is as follows: in order to further prevent the liquid from leaking out of the through hole 14 from the valve rod 3, an upper sealing ring 144 and a lower sealing ring 145 are arranged to play a sealing role, so that the connection between the valve rod 3 and the valve body 1 has better sealing performance, and the liquid is ensured not to leak from the connection between the valve rod 3 and the valve body 1; meanwhile, in order to reduce the influence of the arrangement of the upper sealing ring 144 and the lower sealing ring 145 on the rotation sensitivity of the valve rod 3, the upper bearing 143 and the lower bearing 142 are arranged, and the upper bearing 143 and the lower bearing 142 are plane thrust ball bearings, so that the friction force of the valve rod 3 during rotation can be reduced, and the resistance of the valve rod 3 during rotation is reduced; meanwhile, the convex ring 31 of the valve rod 3 abuts against the limit ring 141, so that the valve rod 3 can be more stable when rotating.
Example 3: referring to fig. 1, the present embodiment has a structure similar to that of embodiment 1 or embodiment 2, except that a sewage discharge outlet 17 is provided at a bottom end position of the valve body 1 between the first ball valve and the second ball valve, and a sewage discharge cover 171 is screwed to the sewage discharge outlet. The bottom end of the valve body 1 is obliquely arranged towards the sewage discharge port 17.
The working principle of the embodiment is as follows: in the embodiment, the drain outlet 17 is arranged, so that when the two ball valves are closed, the drain outlet 17 can be opened, and liquid can be conveniently discharged from the drain outlet 17 for detection; meanwhile, the bottom end of the valve body 1 is obliquely arranged towards the sewage discharge port 17; so that the liquid in the valve body 1 can flow out of the sewage draining outlet 17 through the bottom end which is obliquely arranged.
The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.
Claims (7)
1. An integral double block double drain ball valve, comprising:
the valve comprises a valve body, a first flow passage and a second flow passage, wherein the first flow passage and the second flow passage are respectively arranged at two ends of the valve body;
the valve core is arranged in the valve body;
the valve body is provided with a through hole, and the valve rod penetrates through the through hole to be connected with the valve core;
the upper sealing block is arranged at the upper end of the valve core, and an upper spring is abutted between the upper sealing block and the valve body;
and the lower sealing block is arranged at the lower end of the valve core, and a lower spring is abutted between the lower sealing block and the valve body.
2. The unitary dual block dual discharge ball valve of claim 1,
the upper sealing block is provided with an upper sealing spherical surface matched with the valve core;
the lower sealing block is provided with a lower sealing spherical surface matched with the valve core.
3. The unitary dual block dual discharge ball valve of claim 1,
a first annular groove is formed in the circumferential direction of the bottom end of the through hole, a first convex ring is arranged on the upper end face of the upper sealing block, the upper end of the upper spring is abutted against the first annular groove, and the lower end of the upper spring is abutted against the first convex ring;
the lower end face of the lower sealing block is provided with a second annular groove, the upper end of the lower spring is abutted to the second annular groove, and the lower end of the lower spring is abutted to the inside of the valve body.
4. The integrated double-clogging double-discharge ball valve according to claim 1, wherein a limit ring is provided in a circumferential direction of an inner wall of the through hole, and a convex ring which is fitted with the limit ring is provided in a circumferential direction of the valve stem.
5. The integrated double-clogging double-discharge ball valve according to claim 4, wherein a lower bearing is provided between the lower end surface of the convex ring and the limit ring, and an upper bearing is provided on the upper end surface of the convex ring.
6. The integrated double-clogging double-discharge ball valve according to any one of claims 1 to 5, wherein a sewage discharge outlet is provided at the bottom end of the valve body, and a sewage discharge cover is connected to the sewage discharge outlet in a threaded manner.
7. The one-piece, double block, double drain ball valve of claim 6, wherein a bottom end of the valve body is angled toward the drain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266105.8U CN217234481U (en) | 2022-05-23 | 2022-05-23 | Integral double-blocking double-row ball discharging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221266105.8U CN217234481U (en) | 2022-05-23 | 2022-05-23 | Integral double-blocking double-row ball discharging valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217234481U true CN217234481U (en) | 2022-08-19 |
Family
ID=82823624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221266105.8U Active CN217234481U (en) | 2022-05-23 | 2022-05-23 | Integral double-blocking double-row ball discharging valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217234481U (en) |
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2022
- 2022-05-23 CN CN202221266105.8U patent/CN217234481U/en active Active
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