CN214617871U

CN214617871U - Shutoff valve with heat preservation function

Info

Publication number: CN214617871U
Application number: CN202120969304.4U
Authority: CN
Inventors: 王宝印; 王玉柱
Original assignee: Tianjin Jiaxiang Tairui Valve Co ltd
Current assignee: Tianjin Jiaxiang Tairui Valve Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-05
Anticipated expiration: 2031-04-30

Abstract

The utility model discloses a stop valve with heat preservation function, the water control valve comprises a valve body, two sets of flanges of valve body both sides fixedly connected with, the inside of valve body is provided with the passageway, the inside of valve body is provided with the valve rod, the top of valve rod is provided with fixed knot and constructs, the bottom of valve rod is provided with seal structure. This stop valve with heat preservation function passes through the insulation cover, the air inlet hose, breather pipe and sponge circle, when needing to keep warm to the stop valve, earlier with the insulation cover in the outside of valve body, then carry steam through the inside of air inlet hose to the insulation cover, the insulation cover can the grow after carrying certain volume's steam, block up the air inlet hose, steam stops in the breather pipe of insulation cover inside and stores, the outside sponge circle of insulation cover can keep warm to the heat of inside, reduce thermal loss, this structure has realized keeping warm to the stop valve, make the stop valve can normal use when the low temperature, the inside easy problem of crystallization of stop valve under the low temperature state has been solved.

Description

Shutoff valve with heat preservation function

Technical Field

The utility model relates to a stop valve technical field specifically is a stop valve with heat preservation function.

Background

The shutoff valve is a valve for controlling liquid flow in a pipeline by changing a shutoff area, and the shutoff valve is widely applied to various pipelines as one of important shutoff valves, but the existing shutoff valve has some defects to be improved when in use, for example, when the existing shutoff valve is used in a low-temperature environment for a long time, crystallization can be generated in the valve body to be unfavorable for normal use of the shutoff valve, or a valve rod for shutoff of the shutoff valve is not stable enough when in adjustment, so that the shutoff is problematic, and the like.

In the process of implementing the present invention, the inventor finds that at least the following problems exist in the prior art and are not solved:

(1) when the traditional shutoff valve is used in a low-temperature environment for a long time, the phenomenon of crystallization generated inside the valve body is unfavorable for normal use of the shutoff valve;

(2) in the traditional shutoff valve, a valve rod for shutoff is not stable enough when being adjusted, so that the shutoff is problematic;

(3) the traditional shutoff valve has poor sealing performance inside the valve body during shutoff and poor liquid shutoff effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stop valve with heat preservation function to provide the inside easy problem of crystallization of stop valve under the low temperature state in solving above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a shutoff valve with a heat preservation function comprises a valve body, wherein two groups of flanges are fixedly connected to two sides of the valve body, a channel is arranged in the valve body, a valve rod is arranged in the valve body, a fixing structure is arranged at the top end of the valve rod, a sealing structure is arranged at the bottom end of the valve rod, and a heat preservation structure is arranged outside the valve body;

the heat preservation structure comprises a heat preservation sleeve, the heat preservation sleeve is sleeved outside the valve body, one side of the top end of the heat preservation sleeve is fixedly connected with an air inlet hose, a plurality of groups of vent pipes are arranged inside the heat preservation sleeve, and seven groups of sponge rings are arranged outside the heat preservation sleeve.

Preferably, the sponge ring is provided with seven groups, and the sponge ring is distributed at equal intervals outside the heat-insulating sleeve.

Preferably, fixed knot constructs by carousel, gag lever post, fixed disk and recess and constitutes, carousel fixed connection is on the top of valve rod, the bottom activity of carousel articulates there are two sets of gag lever posts, the top fixedly connected with fixed disk of valve body, the both sides of fixed disk are provided with two sets of recesses.

Preferably, the grooves are provided in two sets and are symmetrically distributed about a vertical center line of the fixed disk.

Preferably, seal structure comprises closing plate, first sealing strip, valve clack, second sealing strip and shutoff groove, the bottom of valve rod is provided with the valve clack, fixedly connected with closing plate between valve clack and the valve rod, two sets of first sealing strips of both sides fixedly connected with of closing plate bottom, the inside of valve body is provided with the shutoff groove, the inside of shutoff groove is provided with the second sealing strip.

Preferably, the width of the interior of the cut-off groove is greater than the width of the exterior of the flap, which is potentially the interior of the cut-off groove.

Compared with the prior art, the beneficial effects of the utility model are that: the shutoff valve with the heat preservation function not only realizes the heat preservation effect and the improvement of the stability of the shutoff, but also realizes the improvement of the sealing performance of the shutoff;

(1) through the heat-insulating sleeve, the air inlet hose, the vent pipe and the sponge ring, when the shutoff valve needs to be insulated, the heat-insulating sleeve is firstly sleeved outside the valve body, then hot air is conveyed into the heat-insulating sleeve through the air inlet hose, the heat-insulating sleeve becomes large after certain volume of hot air is conveyed, the air inlet hose is blocked, the hot air stays and is stored in the vent pipe inside the heat-insulating sleeve, the sponge ring outside the heat-insulating sleeve can insulate heat inside, the loss of heat is reduced, the structure realizes the heat insulation of the shutoff valve, and the shutoff valve can be normally used at low temperature;

(2) through the rotary disc, the limiting rod, the fixed disc and the groove, when the shutoff valve is required to shut off, the rotary disc at the top end of the valve rod is firstly rotated to enable the valve rod to rotate downwards until the valve clack at the bottom end of the valve rod enters the inside of the shutoff groove, and then the limiting rod hinged to the bottom end of the rotary disc is moved into the groove of the fixed disc, so that the rotary disc is fixed at the top end of the fixed disc by the limiting rod, the rotary disc cannot easily rotate to realize the stability of shutoff, and the structure realizes the stability of shutoff of the shutoff valve by limiting the rotary disc;

(3) through closing plate, first sealing strip, valve clack, second sealing strip and shutoff groove, when the valve clack entered into the inside of shutoff groove, the inside second sealing strip of shutoff groove can wrap up the valve clack, and the shutoff groove is stopped up on the top of shutoff groove to the sealing plate lid on valve clack top simultaneously, and the first sealing strip of closing plate bottom both sides has also realized the sealed protection to the valve body, and this structure has improved the leakproofness when the shutoff valve dams, has strengthened the efficiency that the shutoff valve dams.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic front view of the structure of the present invention;

fig. 3 is a schematic top view of the fixing structure of the present invention;

fig. 4 is an enlarged partial cross-sectional view of the point a in fig. 1 according to the present invention.

In the figure: 1. a valve body; 2. a channel; 3. a valve stem; 4. a thermal insulation sleeve; 5. an air intake hose; 6. a fixed structure; 601. a turntable; 602. a limiting rod; 603. fixing the disc; 604. a groove; 7. a breather pipe; 8. a sealing structure; 801. a sealing plate; 802. a first seal strip; 803. a valve flap; 804. a second seal strip; 805. a cut-off groove; 9. a flange; 10. a sponge ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-4, the shutoff valve with the heat preservation function comprises a valve body 1, two groups of flanges 9 are fixedly connected to two sides of the valve body 1, a channel 2 is arranged inside the valve body 1, a valve rod 3 is arranged inside the valve body 1, a fixing structure 6 is arranged at the top end of the valve rod 3, a sealing structure 8 is arranged at the bottom end of the valve rod 3, and a heat preservation structure is arranged outside the valve body 1;

referring to fig. 1-4, the shutoff valve with the heat preservation function further comprises a heat preservation structure, the heat preservation structure comprises a heat preservation sleeve 4, the heat preservation sleeve 4 is sleeved outside the valve body 1, one side of the top end of the heat preservation sleeve 4 is fixedly connected with an air inlet hose 5, a plurality of groups of air pipes 7 are arranged inside the heat preservation sleeve 4, seven groups of sponge rings 10 are arranged outside the heat preservation sleeve 4, the seven groups of sponge rings 10 are arranged, and the sponge rings 10 are distributed at equal intervals outside the heat preservation sleeve 4;

specifically, as shown in fig. 1 and 2, when the shutoff valve needs to be insulated, the insulation sleeve 4 is firstly sleeved outside the valve body 1, then hot air is conveyed inside the insulation sleeve 4 through the air inlet hose 5, the insulation sleeve 4 can become large after the hot air with a certain volume is conveyed, the air inlet hose 5 is blocked, the hot air stays and is stored in the vent pipe 7 inside the insulation sleeve 4, the sponge ring 10 outside the insulation sleeve 4 can insulate the heat inside, the loss of the heat is reduced, the insulation of the shutoff valve is realized by the structure, and the shutoff valve can be normally used at a low temperature.

Example 2: the fixing structure 6 consists of a rotary disc 601, limiting rods 602, a fixed disc 603 and grooves 604, the rotary disc 601 is fixedly connected to the top end of the valve rod 3, two groups of limiting rods 602 are movably hinged to the bottom end of the rotary disc 601, the top end of the valve body 1 is fixedly connected with the fixed disc 603, two groups of grooves 604 are arranged on two sides of the fixed disc 603, and the two groups of grooves 604 are symmetrically distributed about the vertical center line of the fixed disc 603;

specifically, as shown in fig. 1 and 3, when the shutoff valve is required to shut off, the rotary disc 601 at the top end of the valve rod 3 is rotated to rotate the valve rod 3 downwards until the valve flap 803 at the bottom end of the valve rod 3 enters the inside of the shutoff groove 805, and then the limiting rod 602 hinged at the bottom end of the rotary disc 601 is moved into the groove 604 of the fixed disc 603, so that the rotary disc 601 is fixed at the top end of the fixed disc 603 by the limiting rod 602, the rotary disc 601 cannot be easily rotated to realize the stability of shutoff, and the structure realizes the stability of shutoff valve by limiting the rotary disc 601.

Example 3: the sealing structure 8 is composed of a sealing plate 801, a first sealing strip 802, a valve flap 803, a second sealing strip 804 and a shutoff groove 805, the valve flap 803 is arranged at the bottom end of the valve rod 3, the sealing plate 801 is fixedly connected between the valve flap 803 and the valve rod 3, two groups of first sealing strips 802 are fixedly connected to two sides of the bottom end of the sealing plate 801, the shutoff groove 805 is arranged inside the valve body 1, the width inside the shutoff groove 805 is larger than the width outside the valve flap 803, the valve flap 803 is located inside the shutoff groove 805, and the second sealing strip 804 is arranged inside the shutoff groove 805;

specifically, as shown in fig. 1 and 4, when the valve flap 803 enters the inside of the shutoff groove 805, the second sealing strip 804 inside the shutoff groove 805 can wrap the valve flap 803, and the sealing plate 801 at the top end of the valve flap 803 covers the top end of the shutoff groove 805 to block the shutoff groove 805, and the first sealing strips 802 at the two sides of the bottom end of the sealing plate 801 also realize sealing protection on the valve body 1, so that the structure improves the sealing performance of the shutoff valve during shutoff and enhances the efficiency of the shutoff valve.

The working principle is as follows: when the utility model is used, the cut-off valve is firstly installed on a fixed pipeline through the flange 9, when the cut-off valve needs to be insulated, the heat insulation sleeve 4 is firstly sleeved outside the valve body 1, then the heat is conveyed inside the heat insulation sleeve 4 through the air inlet hose 5, the heat insulation sleeve 4 can be enlarged after certain volume of the heat is conveyed, the air inlet hose 5 is blocked, the heat stays and is stored in the air vent pipe 7 inside the heat insulation sleeve 4, the heat inside can be insulated by the sponge ring 10 outside the heat insulation sleeve 4, the heat loss is reduced, the structure realizes the heat insulation of the cut-off valve, the cut-off valve can be normally used at low temperature, when the cut-off is carried out, the rotary disc 601 at the top end of the valve rod 3 is firstly rotated to enable the valve rod 3 to rotate downwards until the valve clack 803 at the bottom end of the valve rod 3 enters the inside of the cut-off groove 805, then the limiting rod 602 hinged at the bottom end of the rotary disc 601 is moved into the groove 604 of the fixed disc 603, therefore, the rotating disc 601 is fixed at the top end of the fixed disc 603 by the limiting rod 602, the rotating disc 601 cannot easily rotate to realize the stability of closure, meanwhile, when the valve flap 803 enters the inside of the closure groove 805, the second sealing strip 804 inside the closure groove 805 can wrap the valve flap 803, meanwhile, the sealing plate 801 at the top end of the valve flap 803 covers the top end of the closure groove 805 to block the closure groove 805, the first sealing strips 802 at the two sides of the bottom end of the sealing plate 801 also realize the sealing protection of the valve body 1, and the structure improves the sealing performance of the closure valve during closure.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a shutoff valve with heat preservation function, includes valve body (1), its characterized in that: two groups of flanges (9) are fixedly connected to two sides of the valve body (1), a channel (2) is arranged inside the valve body (1), a valve rod (3) is arranged inside the valve body (1), a fixing structure (6) is arranged at the top end of the valve rod (3), a sealing structure (8) is arranged at the bottom end of the valve rod (3), and a heat insulation structure is arranged outside the valve body (1);

the heat preservation structure comprises a heat preservation sleeve (4), wherein the heat preservation sleeve (4) is sleeved outside the valve body (1), one side of the top end of the heat preservation sleeve (4) is fixedly connected with an air inlet hose (5), a plurality of groups of vent pipes (7) are arranged inside the heat preservation sleeve (4), and seven groups of sponge rings (10) are arranged outside the heat preservation sleeve (4).

2. The shutoff valve with the heat insulating function according to claim 1, characterized in that: seven groups of sponge rings (10) are arranged, and the sponge rings (10) are distributed at equal intervals outside the heat-insulating sleeve (4).

3. The shutoff valve with the heat insulating function according to claim 1, characterized in that: fixed knot constructs (6) and comprises carousel (601), gag lever post (602), fixed disk (603) and recess (604), carousel (601) fixed connection is on the top of valve rod (3), the bottom activity hinge of carousel (601) has two sets of gag lever posts (602), the top fixedly connected with fixed disk (603) of valve body (1), the both sides of fixed disk (603) are provided with two sets of recesses (604).

4. The shutoff valve with the heat insulating function according to claim 3, characterized in that: two groups of grooves (604) are arranged and are symmetrically distributed about the vertical center line of the fixed disc (603).

5. The shutoff valve with the heat insulating function according to claim 1, characterized in that: the sealing structure (8) comprises a sealing plate (801), a first sealing strip (802), a valve clack (803), a second sealing strip (804) and an intercepting groove (805), the valve clack (803) is arranged at the bottom end of the valve rod (3), the sealing plate (801) is fixedly connected between the valve clack (803) and the valve rod (3), two sets of first sealing strips (802) are fixedly connected to two sides of the bottom end of the sealing plate (801), the intercepting groove (805) is arranged in the valve body (1), and the second sealing strip (804) is arranged in the intercepting groove (805).

6. The shutoff valve with the heat insulating function according to claim 5, characterized in that: the width of the inside of the cut-off groove (805) is larger than the width of the outside of the valve flap (803), the valve flap (803) potentially being inside the cut-off groove (805).