CN209977370U - Integral type high temperature cuts off gas ball valve - Google Patents

Abstract

The utility model provides an integral type high temperature cuts off gas ball valve belongs to control flap's technical field. An integrated high-temperature cut-off gas ball valve comprises a cut-off component arranged in a valve body and a temperature sensing component arranged outside the valve body; the utility model discloses a set up integral type valve body chamber in the valve body, can be so that to cut off and do not have the tie point between subassembly and the fluid entry, thereby avoided damaging the problem that the tie point leads to the gas because of high temperature and cut off inefficacy, the reliability that the gas cut off has been improved, and valve body and thalposis holding chamber formula structure as an organic whole, make the orientation of thalposis holding chamber on the valve body changeable, thereby the orientation of having satisfied with thalposis holding chamber orientation emergence accident easily has improved the adaptability, in addition, the temperature sensing subassembly that will be used for induction temperature sets up outside the valve body, the change of response ambient temperature that can be rapid and accurate, thereby the sensitivity that the valve cut off to the gas has been improved, more satisfy the service condition that.

Description

Integral type high temperature cuts off gas ball valve

Technical Field

The utility model relates to a control flap's technical field specifically is to relate to an integral type high temperature cuts off gas ball valve.

Background

With the more mature use technology of the natural gas, the gas is widely applied to the production and the life of people. However, because of the great potential safety hazard of the application of the fuel gas, people pay more and more attention to the safety problem in the application process of the fuel gas.

The gas cutting ball valve is used as a cutting part in the prior gas channel, can automatically cut off the supply of gas under the condition of high temperature caused by accidents such as fire and the like, thereby improving the safety of the gas supply. However, the gas shutoff ball valves currently on the market include the following two types:

the first is an internal sensing type, such as a gas shutoff ball valve disclosed in chinese patent CN201720123377.5, in which a shutoff assembly is provided in a fluid passage, and a heat sensitive element is provided in the shutoff assembly. Normally, the thermosensitive element is kept unchanged, the cut-off component is kept in a compressed state, and the fluid channel is in a passage state; under the condition of high temperature caused by accidents, the heat-sensitive element is fused or softened by sensing the high temperature and deformed, so that the cutting assembly is stretched and blocks the fluid channel, and the fuel gas is cut off in the accidents. However, the parts for sensing in the structure are arranged in the fluid channel, so that the capacity of sensing external temperature difference change is poor, the influence of fluid temperature in the pipeline is easy to influence, the sensing precision is poor, the gas supply can not be blocked timely and efficiently, and the delay is obvious.

The second one is an external sensing type, such as an over-temperature cut-off safety valve disclosed in chinese patent CN201811367404.9, in which a lock pin assembly is disposed on the side wall of the valve body to lock the valve core, and a temperature sensing spring is disposed in the lock pin assembly. Under normal conditions, the valve core is opened, and the lock pin assembly locks the valve core, so that the fluid channel is opened; under the condition of high temperature caused by accidents, the temperature-sensitive spring senses temperature change to enable the lock pin assembly to unlock the valve core, so that the valve core closes the fluid channel, and the cut-off operation of gas supply in the accidents is realized. Although the sensing part for sensing the temperature is arranged on the side wall of the valve body, the sensing part can rapidly sense the change of the external temperature, and the reaction speed and the accuracy are improved, a connection point is arranged between the fluid inlet end and the lock pin assembly, so that the problem that the connection point is easily damaged at high temperature is caused, and the risk of gas cutting failure is caused.

In summary, the high-temperature-release cut-off gas ball valve in the current market cannot simultaneously cut off quickly and accurately, has the characteristic of reliable cut-off, and cannot meet the use requirement.

Disclosure of Invention

To the above-mentioned problem that exists among the prior art, it aims at providing an integral type high temperature cuts off gas ball valve now, with set up integral type valve body chamber in the valve body and install the cutting off subassembly, the seal receptacle, the spheroid, disk seat and valve gap, make no tie point between cutting off subassembly and the fluid entry, thereby avoided appearing the problem that the junction damaged the cutting off inefficacy that leads to when the accident arouses high temperature, the validity that the gas cut off has been improved, make the security higher, simultaneously, the temperature sensing subassembly salient that will be used for induced temperature sets up in the outside of valve body, can avoid the influence of fluid in the fluid passage to the temperature, the change of the outside temperature of response that also can be quick and accurate simultaneously, the sensitivity has been improved, thereby the gas has been merged fast and accurately cut off, guarantee to cut off reliable characteristics, satisfy the user demand in the.

The specific technical scheme is as follows:

an integrated high-temperature cut-off gas ball valve comprises a valve body, a ball body, a valve seat, a valve cover and a handle, wherein a valve body cavity is arranged in the valve body, the valve body cavity comprises a fluid inlet, a fluid outlet and a fluid channel communicated with the fluid inlet and the fluid outlet, the ball body and the valve seat are arranged at one end in the valve body cavity close to the fluid outlet, the valve cover is screwed on the fluid outlet, an outward convex neck is arranged at the area on the valve body corresponding to the ball body, a valve rod is connected on the ball body, one end of the valve rod, which is far away from the ball body, penetrates through the convex neck and is connected with the handle, the integrated high-temperature cut-off gas ball valve has the characteristics that the fluid inlet, the fluid outlet and the fluid channel are of an integrated structure, a cut-off component is arranged at one end in the valve body cavity close to the fluid inlet, an outward, a temperature sensing component is arranged in the temperature sensing accommodating cavity, a blank cap is arranged in the temperature sensing accommodating cavity and on one side of the temperature sensing component, which is far away from the fluid channel, the temperature sensing component can selectively extend into the fluid channel and clamp the cutting component, wherein,

the cutting assembly comprises a cutting structure and a sealing seat, the cutting structure and the sealing seat are sequentially arranged in the fluid passage along the direction from the fluid inlet to the fluid outlet, a circulation hole is formed in the sealing seat, the cutting structure comprises a supporting body and a cutting body, the supporting body is arranged in the fluid passage and is provided with a flow channel, and the cutting body is slidably arranged on the supporting body and can slide back and forth along the direction close to or far away from the sealing seat.

The utility model provides an foretell integral type high temperature cuts off gas ball valve, wherein, the supporter includes bush and separation blade, bush and separation blade are parallel and parallel arrangement, the separation blade is fixed in the fluid passage and is close to the one end of fluid entry, the bush is slided and is located the separation blade and deviates from one side of fluid entry in the fluid passage, be provided with the spring for the shutoff between bush and the separation blade, and bush and separation blade all are cyclic annular setting, the inboard of bush is provided with first support, the inboard of separation blade is provided with the second support, and the locating hole has all been seted up at the center of first support and second support, and the outside that lies in the locating hole on first support and the second support is that annular array distributes and has.

The integrated high-temperature cut-off gas ball valve is characterized in that the positioning holes in the first support and the second support are coaxially arranged, and the flow passages in the first support and the second support are also arranged in a facing mode.

The utility model provides an foretell integral type high temperature cuts off gas ball valve, wherein, cut off the body and include cock body and connecting rod, the cock body sets up between supporter and seal receptacle, the middle part of cock body is seted up threaded hole along supporter to seal receptacle's direction, the one end spiro union of connecting rod is in threaded hole, the other end of connecting rod is inserted and is located the locating hole on first support and the second support, simultaneously, one side that the cock body is close to the seal receptacle is provided with the first conical surface of chamfer formation, one side that the cock body is close to the supporter is provided with the chamfer equally and forms the second conical surface.

The integral high-temperature cut-off gas ball valve is characterized in that one side, close to the plug body, of the sealing seat is provided with a taper hole, and the taper hole is communicated with the circulation hole.

The integrated high-temperature cut-off gas ball valve is characterized in that a first step groove is formed in the valve body cavity and located between the fluid inlet and the fluid channel, and one side, away from the bushing, of the blocking piece abuts against the first step groove.

The integrated high-temperature cut-off gas ball valve is characterized in that a second step groove is formed in the valve body cavity and located in the fluid channel, the second step groove is located at the sealing seat and close to one side of the support body, and the sealing seat is tightly matched with the second step groove.

The integral type high temperature cuts off gas ball valve, wherein, the temperature sensing subassembly includes the locating part, the locating plate, the temperature sensing fin, heat-conducting piece and base, the base is the setting of "U" font structure, the opening of base is towards fluid passage, the locating part sets up on the locating plate and is located one side that the locating plate is close to fluid passage, the locating plate is slided and is located in the base, and locating part alternative stretches into in the fluid passage and contact the supporter, the temperature sensing fin sets up in the base and is located one side that the locating plate deviates from the locating part, and heat-conducting piece sets up between base and stifle.

The integrated high-temperature cut-off gas ball valve is characterized in that the limiting part is arranged in a spherical mode, the center of the positioning plate is provided with the accommodating hole, and the limiting part is embedded in the accommodating hole.

The utility model provides an foretell integral type high temperature cuts off gas ball valve, wherein, the temperature sensing subassembly includes the locating part, the locating plate, spacing spring and temperature sensing deformation piece for use, the locating plate is slided and is located the temperature sensing holding intracavity, and the center of locating plate has seted up a slide opening, be provided with the clearance between locating plate and the stifle, and be provided with temperature sensing deformation piece near one side of stifle bottom in the clearance, the locating part is "⊥" font setting, the locating part includes spacing end and sets up in spacing end bottom and the spacing end of perpendicular to support to hold, spacing end is inserted and is located the slide opening, spacing end deviates from the tip alternative who supports the one end of supporting and lean on and stretch into the fluid passage and contact the supporter, support and lean on the end to be located the clearance and be located between locating plate and the temperature sensing deformation piece, and simultaneously, spacing end still the cover is equipped with spacing.

The positive effects of the technical scheme are as follows:

according to the integrated high-temperature cut-off gas ball valve, the integrated valve body cavity for containing the cut-off component, the sealing seat, the ball body, the valve seat and the valve cover is arranged in the valve body, the valve body cavity comprises the fluid inlet, the fluid outlet and the fluid channel for communicating the fluid inlet and the fluid outlet, and the cut-off component is arranged in the fluid channel, so that no connection point exists between the cut-off component and the fluid inlet, the problem that the gas is cut off and loses efficacy due to the fact that the connection part is damaged when high temperature and other problems are caused by accidents is solved, and the reliability of; in addition, the temperature sensing assembly is arranged on the outer side of the valve body to act on the cutting assembly, so that the change of the external temperature can be sensed more quickly, the influence of fluid in a fluid channel can be avoided, the operation of cutting off the fuel gas is quicker and more accurate, and the sensitivity of cutting off the fuel gas is improved; the temperature-sensing accommodating cavity is arranged on the valve body, so that the temperature-sensing accommodating cavity and the valve body are arranged into a whole, the temperature-sensing accommodating cavity can be oriented to the direction in which accidents are easy to happen when the valve body is formed, temperature change information can be acquired more timely, the timeliness of fuel gas cut-off is improved, the structure is more reasonable, and compared with a split type mode in which the temperature-sensing accommodating cavity is screwed on the valve body, the orientation of a temperature-sensing element cannot be ensured due to the fact that the screwing angle cannot be ensured; in addition, the flow holes in the first support of the bushing and the second support of the baffle are arranged in a right-faced mode, so that the flow of the fluid channel can be increased, and the structure is more reasonable; chamfers are arranged on two sides of the plug body to form a bidirectional conical structure, and the flow of the fluid channel can be increased; in addition, the first step groove is arranged in the valve body cavity to fix the baffle plate, so that the sectional area of the fluid channel is larger than that of the fluid inlet, the sectional area of the baffle plate is increased, the area of a flow control hole in the baffle plate is increased, and the flow is further improved; in addition, temperature sensing fin and temperature sensing deformation piece take place deformation through the experience temperature change, make the locating part position change and realize the gas cutting operation to can restore to the throne after the temperature resumes, can use repeatedly, saved cost and resource.

Drawings

FIG. 1 is a diagram illustrating a normal configuration of a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a view angle diagram of a baffle plate according to a preferred embodiment of the present invention;

FIG. 4 is a schematic view of another perspective of the baffle plate of a preferred embodiment of the present invention;

FIG. 5 is a cross-sectional view of a bushing in accordance with a preferred embodiment of the present invention;

FIG. 6 is a perspective view of a bushing according to a preferred embodiment of the present invention;

FIG. 7 is a cross-sectional view of a plug body according to a preferred embodiment of the present invention;

FIG. 8 is a schematic diagram of a connecting rod according to a preferred embodiment of the present invention;

fig. 9 is a cross-sectional view of a seal holder according to a preferred embodiment of the present invention;

FIG. 10 is a block diagram of a preferred embodiment of the present invention in a disconnected state;

FIG. 11 is a schematic diagram of another preferred embodiment of the present invention in a normal state;

FIG. 12 is a block diagram of another preferred embodiment of the present invention in a cut-off state;

fig. 13 is a structural diagram of another orientation of the temperature-sensing accommodating chamber according to another preferred embodiment of the present invention.

In the drawings: 1. a valve body; 11. a valve body cavity; 12. a raised neck; 13. a temperature sensing accommodating cavity; 14. a first step groove; 15. a second step groove; 111. a fluid inlet; 112. a fluid channel; 113. a fluid outlet; 131. covering the blank with a cover; 2. a sphere; 21. a valve stem; 3. a valve seat; 4. a valve cover; 5. a handle; 6. cutting off the assembly; 61. a cutting structure; 62. a sealing seat; 611. a support body; 612. cutting off the body; 621. a flow-through hole; 622. carrying out taper hole expansion; 6111. a bushing; 6112. a baffle plate; 6113. a spring for plugging; 6114. a first bracket; 6115. a second bracket; 6116. positioning holes; 6117. a flow channel; 6121. a plug body; 6122. a connecting rod; 6123. a threaded hole; 6124. a first conical surface; 6125. a second tapered surface; 7. a temperature sensing assembly; 71. a limiting member; 72. positioning a plate; 73. a temperature sensing fin; 74. a heat conductive member; 75. a base; 76. a spring for limiting; 77. a temperature sensitive deformation member; 711. a limiting end; 712. an abutting end.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically described with reference to fig. 1 to 13, but the following contents are not intended to limit the present invention.

The first embodiment is as follows:

FIG. 1 is a diagram illustrating a normal configuration of a preferred embodiment of the present invention; fig. 2 is an enlarged view of a portion a in fig. 1. As shown in fig. 1 and 2, the present embodiment provides an integrated high-temperature shutoff gas ball valve including: the gas valve comprises a valve body 1, a ball body 2, a valve seat 3, a valve cover 4 and a handle 5, wherein a valve body cavity 11 is arranged in the valve body 1, the valve body cavity 11 comprises a fluid inlet 111, a fluid outlet 113 and a fluid channel 112 communicating the fluid inlet 111 with the fluid outlet 113, the ball body 2 and the valve seat 3 are arranged at one end, close to the fluid outlet 113, in the valve body cavity 11, the valve body 113 is screwed with the valve cover 4, a convex neck 12 is arranged on the valve body 1 and in a region corresponding to the ball body 2, a valve rod 21 is connected to the ball body 2, one end, deviating from the ball body 2, of the valve rod 21 penetrates through the convex neck 12 to be connected with the handle 5, the ball body 2 can be rotated through the handle 5 under normal conditions, opening and closing.

Specifically, the valve body cavity 11 in the valve body 1 includes the fluid inlet 111, the fluid outlet 113 and the fluid passage 112 which are of an integrated structure, the fuel gas enters from the fluid inlet 111 and is discharged from the fluid passage 112 to the fluid outlet 113, the cut-off assembly 6 is arranged at one end, close to the fluid inlet 111, in the valve body cavity 11, so that no connection point exists between the cut-off assembly 6 and the fluid inlet 111, the problem of damage to the connection point due to factors such as overhigh external temperature is avoided, the risk of failure of fuel gas cut-off is prevented, and the reliability of fuel gas cut-off is improved. Meanwhile, an outward protruding temperature-sensing accommodating cavity 13 is arranged on the valve body 1 and in the area corresponding to the cutting-off component 6, the temperature-sensing accommodating cavity 13 and the valve body 1 are of an integrated structure, the temperature-sensing accommodating cavity 13 is communicated with the fluid channel 112, the temperature-sensing component 7 is arranged in the temperature-sensing accommodating cavity 13, a blank cover 131 is arranged in the temperature-sensing accommodating cavity 13 and on the side of the temperature-sensing component 7 away from the fluid channel 112, the temperature-sensing component 7 can selectively extend into the fluid channel 112 and clamp the cutting-off component 6, under normal conditions, the temperature-sensing component 7 extends into the fluid channel 112 and clamps the cutting-off component 6, so that the cutting-off component 6 can not block the fluid channel 112, thereby maintaining the normal supply of fuel gas, and the temperature-sensing component 7 and the valve body 1 are of an integrated structure and are positioned at the outermost side of the valve body 1, thereby more rapidly and accurately sensing the change of the, make the operation to the gas cut off more rapidly and accurate, improved the sensitivity that the gas cut off, still can select the orientation of thalposis holding chamber 13 according to the installation environment demand of customer to the valve in addition, with thalposis holding chamber 13 orientation direction of easily taking place the accident when valve body 1 shaping to be convenient for set up one side of temperature sensing subassembly 7 orientation high temperature accident direction easily takes place, make temperature change information acquire more in time, improved the promptness that the gas cut off, the structure is more reasonable.

More specifically, the cutting assembly 6 located in the valve body cavity 11 further includes a cutting structure 61 and a sealing seat 62, the cutting structure 61 and the sealing seat 62 are sequentially disposed in the fluid passage 112 along a direction from the fluid inlet 111 to the fluid outlet 113, a flow hole 621 is formed in the sealing seat 62, and the fuel gas entering from the fluid inlet 111 flows to the fluid outlet 113 through the flow hole 621. The cutting structure 61 further includes a supporting body 611 and a cutting body 612, the supporting body 611 is disposed in the fluid passage 112 and has a flow passage 6117, so that the fuel gas can flow into the flow hole 621 of the sealing seat 62 through the flow passage 6117 of the supporting body 611 after entering from the fluid inlet 111, and the cutting body 612 is slidably disposed on the supporting body 611 and can slide back and forth in a direction close to or away from the sealing seat 62, so that the flow hole 621 of the sealing seat 62 is opened and closed by the sliding of the cutting body 612, thereby achieving the release and cutting of the fuel gas.

FIG. 3 is a view angle diagram of a baffle plate according to a preferred embodiment of the present invention; FIG. 4 is a schematic view of another perspective of the baffle plate of a preferred embodiment of the present invention; FIG. 5 is a cross-sectional view of a bushing in accordance with a preferred embodiment of the present invention; fig. 6 is a view of a perspective of a bushing according to a preferred embodiment of the present invention. As shown in fig. 1 to 6, the support body 611 of the cutting assembly 6 further includes a bushing 6111 and a stopper 6112, the bushing 6111 and the stopper 6112 are arranged in parallel, the stopper 6112 is fixed in the fluid channel 112 and is close to one end of the fluid inlet 111, the bushing 6111 is slidably arranged in the fluid channel 112 and is located on one side of the stopper 6112 away from the fluid inlet 111, a spring 6113 for plugging is arranged between the bushing 6111 and the stopper 6112, so that the change of the position of the bushing 6111 in the fluid channel 112 is realized by the expansion and contraction of the spring 6113 for plugging, and the cutting body 612 is driven to move to cut off the gas, the bushing 6111 and the stopper 6112 are both arranged in a ring shape, a first bracket 6114 is arranged on the inner side of the bushing 6111, a second bracket 6115 is arranged on the inner side of the stopper 6112, positioning holes 6116 are arranged in the centers of the first bracket 6114 and the second bracket 6115, and an installation carrier is provided for the cutting body 612 through the positioning holes 61, and a plurality of flow channels 6117 are distributed on the first support 6114 and the second support 6115 in an annular array at the outer side of the positioning hole 6116, so that the gas flowing from the fluid inlet 111 can sequentially pass through the flow channels 6117 on the baffle and the flow channels 6117 on the bushing 6111 and then flow into the flow hole 621 of the sealing seat 62, a passage is provided for the gas from the fluid inlet 111 to the sealing seat 62, and the supply of the gas cannot be interfered under normal conditions.

Specifically, the first support 6114 on the bushing 6111 and the positioning hole 6116 on the second support 6115 on the blocking piece 6112 are coaxially arranged, so that the installation of the cut-off body 612 is facilitated, and the flow channels 6117 on the first support 6114 and the second support 6115 are also arranged in a right-facing manner, so that the flow of the fuel gas is smoother, the flow of the fluid channel 112 is increased, and the structure is more reasonable.

FIG. 7 is a cross-sectional view of a plug body according to a preferred embodiment of the present invention; fig. 8 is a structural diagram of a connecting rod according to a preferred embodiment of the present invention. As shown in fig. 1, 2, 7 and 8, the cutting body 612 of the cutting assembly 6 further includes a plug body 6121 and a connecting rod 6122, the plug body 6121 is disposed between the support body 611 and the sealing seat 62, a threaded hole 6123 is formed in the middle of the plug body 6121 along the direction from the support body 611 to the sealing seat 62, one end of the connecting rod 6122 is screwed into the threaded hole 6123, and the other end of the connecting rod 6122 is inserted into the positioning hole 6116 of the first support 6114 and the second support 6115, so that when the plugging spring 6113 drives the bushing 6111 to slide in the fluid channel 112, the connecting rod 6122 also drives the plug body 6121 to move in the fluid channel 112 along the direction close to or far from the sealing seat 62, thereby plugging the flow hole 621 of the sealing seat 62 through the plug body 6121, and cutting off the supply of the fuel gas. Meanwhile, a chamfer is arranged on one side of the plug body 6121 close to the sealing seat 62 to form a first conical surface 6124, and a chamfer is also arranged on one side of the plug body 6121 close to the support body 611 to form a second conical surface 6125, so that the flow of gas in the fluid channel 112 can be facilitated, the flow can be increased, meanwhile, the plug body can be conveniently sealed with the circulation hole 621, the sealing reliability is improved, and the stability of gas cut-off is ensured.

Fig. 9 is a sectional view of a seal holder according to a preferred embodiment of the present invention. As shown in fig. 1 and 9, a tapered counterbore 622 is formed on one side of the sealing seat 62 close to the plug body 6121, the tapered counterbore 622 is communicated with the circulation hole 621, preferably, a chamfer or a fillet can be formed at the joint of the tapered counterbore 622 and the circulation hole 621, so that the plug body 6121 with the first tapered surface 6124 can be better matched with the tapered counterbore 622, the sealing reliability of the first tapered surface 6124 and the circulation hole 621 can be ensured, the gas cutting-off effect is improved, and the structure is more reasonable.

More specifically, a first step groove 14 is disposed in the valve body cavity 11 of the valve body 1 and between the fluid inlet 111 and the fluid passage 112, and one side of the blocking piece 6112, which is away from the bushing 6111, abuts against the first step groove 14, so that a fixing base is provided for the blocking piece 6112, and meanwhile, a fixing reference is provided for the expansion and contraction of the spring 6113 for plugging, in addition, the arrangement of the first step groove 14 enables the cross-sectional area of the fluid passage 112 for installing the blocking piece 6112 to be larger than that of the fluid inlet 111, so that the blocking piece 6112 is larger in size, and the cross-sectional area of the flow passage 6117 on the second support 6115 of the blocking piece 6112 is larger, so that the flow area is increased, the flow rate is increased, and the structure is more reasonable.

More specifically, the second stepped groove 15 is arranged in the valve body cavity 11 of the valve body 1 and in the fluid passage 112, the second stepped groove 15 is arranged at the sealing seat 62 and close to one side of the support body 611, the sealing seat 62 is tightly fitted in the second stepped groove 15, so that the sealing seat 62 is more firmly mounted, the reliability of gas cut-off is improved, the cross-sectional area of the fluid outlet 113 is larger than that of the fluid passage 112, and the cross-sectional area of the fluid passage 112 is larger than that of the fluid inlet 111, so that components in the valve body 1 can be sequentially mounted in the valve body cavity 11 from one end of the fluid outlet 113, and the valve body 1 is more convenient to manufacture.

More specifically, the temperature sensing assembly 7 disposed in the temperature-sensing accommodating cavity 13 of the valve body 1 further includes a limiting member 71, a positioning plate 72, a temperature sensing fin 73, a heat conducting member 74 and a base 75, the temperature sensing assembly 7 is fixed in the temperature-sensing accommodating cavity 13 through a blank cap 131, the base 75 is disposed in a "U" shape, an opening of the base 75 faces the fluid channel 112, the limiting member 71 is disposed on the positioning plate 72 and located on one side of the positioning plate 72 close to the fluid channel 112, and the positioning plate 72 is slidably disposed in the base 75, in addition, the limiting member 71 can selectively extend into the fluid channel 112 and contact the support body 611, the temperature sensing fin 73 is disposed in the base 75 and located on one side of the positioning plate 72 departing from the limiting member 71, and the heat conducting member 74 is disposed between the.

Fig. 10 is a structural view of the present invention in a cut-off state. As shown in fig. 1 and 10, normally, the plugging spring 6113 is in a compressed state, the blocking plate 6112 and the bushing 6111 of the support 611 are both located on one side of the limiting body close to the fluid inlet 111, and the bushing 6111 is clamped by the limiting body, the plug body 6121 is separated from the seal seat 62, and the gas enters from the fluid inlet 111, then reaches the flow hole 621 of the seal seat 62 through the fluid channel 112, and then is discharged from the fluid outlet 113. When external environment accident causes high temperature, when transmitting the high temperature that senses to temperature sensing fin 73 through heat-conducting piece 74 on, temperature sensing fin 73 takes place sunkenly, make locating plate 72 drive locating part 71 to shrink in temperature sensing holding cavity 13, thereby make locating part 71 break away from bush 6111, bush 6111 slides to one side of seal receptacle 62 under the effort that spring 6113 resets and produces for the shutoff this moment, thereby it is close to seal receptacle 62 to drive cock body 6121, thereby carry out the shutoff through flow hole 621 on cock body 6121 to the seal receptacle 62, the realization is to cutting off of gas, thereby avoid the emergence of bigger incident.

Fig. 13 is a structural diagram of another orientation of the temperature-sensing accommodating chamber according to another preferred embodiment of the present invention. As shown in fig. 1 and 13, except that the orientation of the temperature-sensitive accommodating cavity 13 on the valve body 1 is set downwards, the temperature-sensitive accommodating cavity 13 on the valve body 1 can be further arranged on the side surface of the valve body 1, so that the temperature-sensitive accommodating cavity 13 is laterally arranged, and the temperature-sensitive component 7 in the temperature-sensitive accommodating cavity 13 is also laterally arranged, thereby meeting the use requirements of the area with easy occurrence of accidents on the side edge of the valve body 1, so that the temperature change information can be acquired more timely, the timeliness of gas cutting is improved, the structure is more reasonable, and compared with a split form in which the temperature-sensitive accommodating cavity 13 is screwed on the valve body 1, the problem that the orientation of the temperature-sensitive component 7 cannot be ensured due to the fact that the screwing angle of the temperature-sensitive accommodating cavity 13 cannot be ensured is avoided.

The integrated high-temperature shutoff gas ball valve provided by the embodiment can enable no connection point between the shutoff assembly 6 and the fluid inlet 111 by arranging the integrated valve body cavity 11 in the valve body 1, thereby avoiding the problem of gas cut-off failure caused by high temperature damage to the connection point, improving the reliability of gas cut-off, and the valve body 1 and the temperature-sensing accommodating cavity 13 are of an integrated structure, so that the orientation of the temperature-sensing accommodating cavity 13 on the valve body 1 can be changed, thereby meeting the requirement that the temperature-sensing accommodating cavity 13 faces the direction of easy accident occurrence, improving the adaptability, in addition, the temperature sensing component 7 for sensing temperature is arranged outside the valve body 1, the temperature sensing component 7 adopts a ball shape as a limiting component 71 to limit the cutting component 6, the change of the external temperature can be sensed rapidly and accurately, thereby improving the sensitivity of the valve to gas cutoff and meeting the use condition of gas application.

Example two:

FIG. 11 is a schematic diagram of another preferred embodiment of the present invention in a normal state; fig. 12 is a structural view showing a cut-off state according to another preferred embodiment of the present invention. As shown in fig. 11 and 12, the present embodiment provides an integrated high-temperature shutoff gas ball valve including all the structures described in embodiment 1 except for the temperature sensing assembly 7.

Specifically, the temperature sensing assembly 7 disposed in the temperature-sensing accommodating cavity 13 of the valve body 1 includes a limiting member 71, a positioning plate 72, a limiting spring 76 and a temperature-sensing deformation member 77, the positioning plate 72 is slidably disposed in the temperature-sensing accommodating cavity 13, and a sliding hole is formed in the center of the positioning plate 72, a gap is formed between the positioning plate 72 and the blank cap 131, and a temperature-sensing deformation member 77 is disposed in one side of the gap close to the bottom of the blank cap 131, so as to more rapidly and accurately sense the change of the external temperature and deform, and the temperature-sensing deformation member 77 protrudes toward one side of the positioning plate 72 in a normal state, and is recessed toward one side of the blank cap 131 under a high temperature condition.

In a normal state, the temperature-sensitive deformation member 77 is in a state of protruding toward one side of the positioning plate 72, at this time, one side of the limiting end 711, which is away from the abutting end 712, is inserted into the fluid channel 112 and limits the supporting body 611 at one side of the limiting member 71, which is close to the fluid inlet 111, and the limiting spring 76 sleeved on the limiting end 711 is in a compressed state, so that a gap exists between the cutting member 612 and the sealing seat 62, and normal supply of fuel gas is ensured; when the external environment accident causes high temperature, the temperature sensing deformation member 77 rapidly and accurately acquires temperature information and deforms, the original protruding state is changed into the recessed state, at the moment, the limiting member 71 contracts into the temperature sensing accommodating cavity 13 under the action force generated when the limiting spring 76 returns, so that the limiting member 71 is separated from the support body 611, the cutting body 612 is close to and attached to the seal seat 62 under the action of the spring 6113 for plugging, the plugging of the circulation hole 621 in the seal seat 62 is completed through the cutting body 612, the supply of fuel gas is blocked, and the safety of fuel gas application is improved.

This implementation provides an integral type high temperature cuts off gas ball valve, set up integral type valve body cavity 11 in valve body 1 equally, make and cut off no tie point between subassembly 6 and the fluid entry 111, thereby the problem of the gas that leads to because of the high temperature damages the tie point and cuts off inefficacy is avoided, the reliability that the gas was cut off has been improved, valve body 1 and temperature sensing holding chamber 13 formula structure as an organic whole, make the orientation of temperature sensing holding chamber 13 on valve body 1 changeable, thereby the orientation of temperature sensing holding chamber 13 towards the easy direction that takes place the accident has been satisfied, adaptability has been improved, in addition, temperature sensing subassembly 7 that will be used for induced temperature sets up outside valve body 1, and the locating part 71 that has provided another kind and adopted "⊥" font structure realizes spacing to cutting off subassembly 6, the change of the same quick and accurate response ambient temperature, thereby the sensitivity of valve body 1 to the gas cut off has been improved, more satisfy the service condition that the.

The above is only a preferred embodiment of the present invention, and not intended to limit the scope of the invention, and it should be appreciated by those skilled in the art that various equivalent substitutions and obvious changes made in the specification and drawings should be included within the scope of the present invention.

Claims (10)

1. An integral type high temperature cuts off gas ball valve, includes valve body, spheroid, disk seat, valve gap and handle, valve body chamber has been seted up in the valve body, valve body chamber includes fluid entry, fluid outlet and intercommunication fluid entry with the fluid passage of fluid outlet, and in the valve body intracavity and be close to the one end of fluid outlet be provided with the spheroid with the disk seat, simultaneously, the spiro union has on the fluid outlet the valve gap, the region that just is located on the valve body and corresponds with the spheroid is provided with a protruding neck, be connected with the valve rod on the spheroid, just the valve rod deviates from the one end of spheroid passes the protruding neck with the handle is connected, its characterized in that, fluid entry, fluid outlet and fluid passage formula structure as an organic whole, the valve body intracavity and be located and be close to the one end of fluid entry is provided with cuts off the subassembly, meanwhile, a temperature-sensing containing cavity which protrudes outwards is arranged on the valve body and is positioned in the area corresponding to the cutting-off component, the temperature-sensing containing cavity is communicated with the fluid channel, a temperature sensing component is arranged in the temperature-sensing containing cavity, a blank cap is arranged in the temperature-sensing containing cavity and is positioned on one side of the temperature sensing component, which is far away from the fluid channel, the temperature sensing component can selectively extend into the fluid channel and clamp the cutting-off component, wherein,

the cutting-off assembly comprises a cutting-off structure and a sealing seat, the cutting-off structure and the sealing seat are sequentially arranged in the fluid channel along the direction from the fluid inlet to the fluid outlet, a circulation hole is formed in the sealing seat, the cutting-off structure further comprises a supporting body and a cutting-off body, the supporting body is arranged in the fluid channel and is provided with a flow channel, and the cutting-off body is slidably arranged on the supporting body and can slide back and forth along the direction close to or far away from the sealing seat.

2. The integrated high-temperature cut-off gas ball valve according to claim 1, wherein the support body comprises a bushing and a blocking piece, the bushing and the blocking piece are arranged in parallel, the blocking piece is fixed in the fluid passage and close to one end of the fluid inlet, the bushing is slidably arranged in the fluid passage and located on one side, away from the fluid inlet, of the blocking piece, a spring for plugging is arranged between the bushing and the blocking piece, the bushing and the blocking piece are both arranged in an annular shape, a first support is arranged on the inner side of the bushing, a second support is arranged on the inner side of the blocking piece, positioning holes are formed in the centers of the first support and the second support, and a plurality of flow passages are distributed on the outer sides, located on the positioning holes, of the first support and the second support in an annular array.

3. The integrated high-temperature cutoff gas ball valve as recited in claim 2 wherein said positioning holes in said first and second supports are coaxially disposed and said flow passages in said first and second supports are also diametrically disposed.

4. The integrated high-temperature cut-off gas ball valve according to claim 3, wherein the cut-off body comprises a plug body and a connecting rod, the plug body is arranged between the support body and the sealing seat, a threaded hole is formed in the middle of the plug body in the direction from the support body to the sealing seat, one end of the connecting rod is screwed in the threaded hole, the other end of the connecting rod is inserted in the positioning holes in the first support and the second support, meanwhile, a chamfer is arranged on one side of the plug body close to the sealing seat to form a first conical surface, and a chamfer is also arranged on one side of the plug body close to the support body to form a second conical surface.

5. The integrated high-temperature cutoff gas ball valve as recited in claim 4 wherein a tapered counterbore is provided in the seal seat on a side thereof adjacent to the plug body, and the tapered counterbore communicates with the flow hole.

6. The integrated high-temperature shutdown gas ball valve as recited in claim 2, wherein a first step groove is formed in the valve body cavity between the fluid inlet and the fluid passage, and a side of the baffle plate facing away from the bushing abuts against the first step groove.

7. The integrated high-temperature cutoff gas ball valve as recited in claim 1 wherein a second stepped groove is provided in said fluid passage and within said valve body cavity, said second stepped groove being located at said seal seat and adjacent to one side of said support, said seal seat being tightly fitted in said second stepped groove.

8. The integrated high-temperature cutoff gas ball valve according to claim 1, wherein the temperature sensing assembly comprises a limiting member, a positioning plate, a temperature sensing fin, a heat conducting member and a base, the base is arranged in a U-shaped structure, an opening of the base faces the fluid channel, the limiting member is arranged on the positioning plate and located at one side of the positioning plate close to the fluid channel, the positioning plate is slidably arranged in the base, the limiting member can selectively extend into the fluid channel and contact the supporting body, the temperature sensing fin is arranged in the base and located at one side of the positioning plate away from the limiting member, and the heat conducting member is arranged between the base and the blank cap.

9. The integrated high-temperature cutoff gas ball valve according to claim 8, wherein the limiting member is arranged in a spherical shape, a receiving hole is formed in the center of the positioning plate, and the limiting member is embedded in the receiving hole.

10. The integrated high-temperature cutoff gas ball valve according to claim 1, wherein the temperature sensing assembly comprises a limiting member, a positioning plate, a limiting spring and a temperature sensing deformation member, the positioning plate is slidably disposed in the temperature sensing accommodating cavity, a sliding hole is formed in the center of the positioning plate, a gap is formed between the positioning plate and the blank cap, the temperature sensing deformation member is disposed on one side, close to the bottom of the blank cap, in the gap, and the limiting member is disposed in a shape like the letter "⊥", the limiting member comprises a limiting end and an abutting end disposed at the bottom of the limiting end and perpendicular to the limiting end, the limiting end is inserted into the sliding hole, an end portion of one end, deviating from the abutting end, of the limiting end can selectively extend into the fluid channel and contact the support body, the abutting end is disposed in the gap and between the positioning plate and the temperature sensing deformation member, and the limiting end is further sleeved with the limiting spring, one end of the limiting spring abuts against the abutting end, and the other end abuts against the positioning plate.

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