CN220850909U - Emergency cut-off valve with high Wen Jiesuo device - Google Patents

Abstract

The utility model discloses an emergency cut-off valve with a high Wen Jiesuo device, which relates to the field of low-temperature valve bodies and aims to solve the problem that a gasket made of hot-melt alloy is exposed to the outside and is easy to fail.

Description

Emergency cut-off valve with high Wen Jiesuo device

Technical Field

The utility model relates to the technical field of low-temperature valve bodies, in particular to an emergency shut-off valve with a high Wen Jiesuo device.

Background

The emergency cut-off valve is also called as a safety cut-off valve, and is characterized in that when an emergency occurs, the valve body can be rapidly closed or opened, so that accidents are avoided, and the emergency cut-off valve has excellent technical performance, low load loss and high reliability. The gas-liquid separator is suitable for combustible gases such as coal gas, natural gas, liquefied petroleum gas and the like, and is widely applied to low-temperature tank trucks, tank containers, gas filling stations and low-temperature medium pipeline systems.

The high-temperature automatic unlocking emergency cut-off valve disclosed in the prior patent number CN112032397A is characterized in that an upper cover and a spring accommodating groove are sequentially arranged above a valve cover assembly from top to bottom, the lower end of the spring accommodating groove and the valve cover assembly are spliced up and down to form a cavity for the valve clack to move up and down, and the manual high-temperature unlocking mechanism comprises an installation frame which is installed on the upper cover; the manual high-temperature unlocking mechanism further comprises a limiting piece and a lock hook for locking the limiting piece, the limiting piece is connected with the rotating piece, the right end of the lock hook is provided with a limiting part extending downwards, the lock hook is hinged with the mounting frame through a rotating shaft, and a second reset spring for resetting the lock hook is sleeved on the rotating shaft; the manual high-temperature unlocking mechanism further comprises a pressing mechanism for pressing the unlocking lock hook, the pressing mechanism comprises a pressing piece, a spring, a gasket and a nut, wherein the gasket is made of hot-melt alloy, the pressing piece is propped against the left end part of the lock hook, the spring is sleeved on the pressing piece, the upper end and the lower end of the spring are propped against the mounting frame and the pressing piece respectively, the top of the pressing piece passes through the mounting frame, the nut is in threaded connection with the top of the pressing piece, the gasket is clamped between the nut and the mounting frame, the gasket is thermally melted at a high temperature, the right end of the lock hook is further moved upwards to unlock, the handle is rotated anticlockwise, the valve clack is moved upwards, and the high-temperature automatic unlocking emergency cut-off valve is in an open state; the handle rotates clockwise, the valve clack moves downwards, and the high-temperature automatic unlocking emergency cut-off valve is in a closed state.

The prior art scheme has the following defects that the gasket and the nut made of the hot-melt alloy are exposed to the outside without any protective measures, the whole exposed volume of the equipment is not convenient to install, the influence of the outside temperature is large, the gasket is easy to melt and soften accidentally when the gasket is exposed to strong sunlight or the engine is subjected to long-time fumigation and other local high temperature conditions, the gasket is easy to deform accidentally due to the external force when exposed to the outside, the locking function of the gasket is lost after the accidental deformation of the gasket reaches a certain degree, and the stability of the whole device is to be improved.

Disclosure of utility model

The utility model aims to provide an emergency shut-off valve with a high Wen Jiesuo device.

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

including the valve gap subassembly, the valve gap subassembly has set gradually upper cover, sleeve and valve body from last to having set gradually down along the direction of gravity, sleeve both ends fixed connection upper cover and valve body set up respectively, sleeve laminating inner wall slip parcel is provided with the body of rod, the upper cover runs through the block and is provided with the dwang, sleeve inner wall fixed reset spring that is provided with the drive dwang and resets, reset spring fixed connection dwang sets up, the dwang outer fringe is fixedly provided with locking post, the dwang is close to the fixed guiding device that is provided with along length direction of the control rod body, the body of rod is close to the fixed valve clack that is provided with of one end of valve body, sleeve inside is fixedly provided with control rod body and keeps away from the pneumatic means of valve body, the top installation high temperature automatic unlocking device of upper cover, high temperature automatic unlocking device includes the locking post, the locking post cavity sets up the sliding and is provided with the spacing post, the fixed one end inner wall that is kept away from the hook portion is provided with the fusible metal block, locking post inside wall fixed first spring that is provided with the conflict fusible metal block, first spring is the compression spring end, the end is close to the fixed to the one end of rod is provided with the compression spring, the first end is provided with the extension lever, the extension mounting plate is equipped with the extension sleeve.

Through adopting above-mentioned technical scheme, during the use, use spanner or loop bar to twist the dwang, until hook portion and spacing post hook connection, the dwang rotates and drives the valve clack and move up, make the valve body keep opening state be convenient for equipment normal work, when the regional temperature of locating is too high, fusible metal piece can be heated to become soft and melt, the one end of first compression spring conflict fusible metal piece does not hinder the removal this moment, drive spacing post slip submergence locking post, result in hook portion to lose the hook connection with spacing post, the dwang is automatic to rotate under reset spring's drive this moment, it returns to the position to drive the valve clack down, alright self-closing valve body reaches the high temperature promptly cuts off the effect that combustible gas pipeline avoids revealing, compare in contrast file, set up fusible metal piece in locking post inside, avoided fusible metal piece unprotected to expose and lead to the condition of unexpected deformation at external force easily, equipment holistic job stabilization obtains improving, the part of equipment exposure reduces simultaneously, space occupation volume also can be less, be convenient for install in narrow and small space, the suitability obtains improving.

Further, a plurality of outflow holes are formed in the outer wall of one end, close to the fusible metal block, of the locking column in a penetrating mode.

Through adopting above-mentioned technical scheme, when meeting conflagration or high temperature, the temperature reaches the melting temperature that fusible metal piece set for, and fusible alloy melts in the locking post, and outflow hole liquid alloy flows from the play hole, and the inside cavity that forms of being convenient for, and first spring automatically drives spacing post and slides to the locking post inside this moment, until hook portion and locking post unhook completely.

Further, one end of the rotating rod far away from the upper cover is fixedly provided with a hexagonal structure, and one end of the lever far away from the hooking part is extended and provided with an lengthening handle.

Through adopting above-mentioned technical scheme, when job site does not have the air supply, the manual control dwang rotation control of being convenient for opens and closes the valve body, and during manual operation, use spanner or cover pole cover to rotate certain angle on hexagonal structure, make hook portion and spacing post cooperation locking realize the auto-lock, the valve body is opened fast this moment, presses the extension handle of lever, and hook portion lifts up, breaks away from with spacing post, makes self-locking device unblock, and the dwang is automatic to be rotated under reset spring's drive, drives the valve clack and moves down the homing, and the valve body closes the valve fast this moment.

Further, the mounting panel encircles parcel lever and locking post setting, the one side extension that the upper cover was kept away from to the mounting panel is provided with vertically protection apron, protection apron lid closes lever and locking post setting, protection apron runs through and is provided with a plurality of observation mounting holes.

Through adopting above-mentioned technical scheme, protection apron and mounting panel combination reach the effect of isolated protection locking post and lever, prevent that above-mentioned part from exposing and receiving external force effect outside accident and leading to valve body opening and close to receive the influence, can also prevent to lock the post and rotate fast when adopting manual closing valve body and produce the condition of damage to people or other articles, have the safety protection effect, the security of the stability that lifting means used, the setting of observation mounting hole simultaneously makes things convenient for operating personnel to observe the running state of above-mentioned part directly perceivedly, also can be used as the mounting hole to be convenient for develop follow-up installation or dismantlement operation.

Further, guider includes the guide cylinder, guide cylinder gomphosis sleeve sets up fixed connection dwang setting, the fixed spacing section of thick bamboo that is provided with parcel guide cylinder of upper cover, the guide cylinder runs through and has seted up helical guide way, the spacing section of thick bamboo runs through the vertical spacing groove of seting up the cooperation guide way, the body of rod penetrates the one end outer fringe extension of guide cylinder and is provided with the guide post that penetrates guide way and spacing groove, the fixed cover of guide post outer wall is equipped with the rolling sleeve.

Through adopting above-mentioned technical scheme, the vertical setting of spacing groove, restriction guide post reciprocates in the spacing inslot, prevent that the body of rod from rotating the skew, the cooperation sleeve has strictly limited the direction of motion of the body of rod, improve the motion stability of equipment, helical guide groove has good guide effect, when the dwang rotates and drives the guide cylinder rotation, thereby the guide groove is closely matched with the guide post at the rotation in-process, thereby control guide post moves up or descends and drive the body of rod wholly rises or descends, start good guide effect, be provided with the antifriction sleeve simultaneously greatly reduced the guide post and the frictional force size between spacing groove and the guide groove, reduce the wearing and tearing of equipment contact surface, life also obtains improving when the operation is stable.

Further, the wrap of the outer wall of the limiting cylinder is provided with an anti-drop sleeve fixedly connected with the upper cover, one surface of the rotating rod, which is close to the limiting cylinder, is fixedly sleeved with a plane bearing, and one end of the plane bearing is fixedly connected with a reset spring.

Through adopting above-mentioned technical scheme, the anticreep cover can effectively prevent the rolling sleeve and drop, and dwang and spacing section of thick bamboo direct contact set up, when lacking lubrication or installation angle incompletely match, dwang rotation resistance can sharply increase and lead to the card to die, and the frictional force size between the two can effectively be reduced to the plane bearing of addding, guarantees the steady operation of equipment.

In summary, the beneficial technical effects of the utility model are as follows:

1. The fusible metal block, the limiting post and the hooking part which are internally installed are adopted, so that the effect of preventing unexpected failure of the unlocking device caused by the fact that the unprotected is exposed to the outside and is easily influenced by the outside environment while being convenient to install in a narrow space is generated;

2. the outflow holes are adopted, so that the effect of promoting the outflow of the liquid alloy from the outflow holes, facilitating the formation of the cavity inside and facilitating unlocking is generated;

3. The hexagonal structure and the lengthened handle are adopted, so that the effect of convenient manual operation is achieved;

4. The mounting plate, the protective cover plate and the observation mounting hole are adopted, so that the effect of isolating and protecting the locking column and the lever and further preventing unexpected failure of equipment is achieved.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a high Wen Jiesuo device structure according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a locking post of the present utility model;

FIG. 4 is a schematic view of the overall cross-sectional structure of the present utility model;

Fig. 5 is an exploded view showing the overall structure of the guide device according to the present utility model.

In the figure, 1, a valve cover assembly; 2. an upper cover; 21. a rotating lever; 211. a hexagonal structure; 22. a return spring; 3. a sleeve; 4. a valve body; 5. a rod body; 51. a valve flap; 6. a guide device; 61. a guide cylinder; 611. a guide groove; 62. a limiting cylinder; 621. a limit groove; 622. a planar bearing; 623. an anti-falling sleeve; 63. a guide post; 631. a rolling sleeve; 7. a pneumatic device; 8. a high-temperature automatic unlocking device; 81. locking the column; 811. an outflow hole; 82. a limit column; 83. a fusible metal block; 84. a first spring; 85. a mounting plate; 851. a protective cover plate; 852. observing the mounting hole; 86. a mounting column; 87. a lever; 871. lengthening the handle; 872. a hooking part; 88. and a second spring.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

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.

Referring to fig. 1-5, the present utility model provides the following technical solutions: comprises a valve cover assembly 1, wherein the valve cover assembly 1 is sequentially provided with an upper cover 2, a sleeve 3 and a valve body 4 from top to bottom along the gravity direction, two ends of the sleeve 3 are respectively fixedly connected with the upper cover 2 and the valve body 4, the sleeve 3 is adhered to the inner wall of the sleeve to be wrapped in a sliding way, the upper cover 2 is provided with a rotating rod 21 in a penetrating and clamping way, the inner wall of the sleeve 3 is fixedly provided with a reset spring 22 for driving the rotating rod 21 to reset, the reset spring 22 is fixedly connected with the rotating rod 21, the outer edge of the rotating rod 21 is fixedly provided with a locking column 81, one end of the rotating rod 21, which is close to the rod 5, is fixedly provided with a guide device 6 for controlling the opening and closing of the valve body 4, one end of the rod 5, which is close to the valve body 4, is fixedly provided with a valve clack 51 for controlling the opening and closing of the valve body 4, the sleeve 3 is internally provided with a pneumatic device 7 for controlling the rod 5 to be far away from the valve body 4, the top of the upper cover 2 is provided with a high-temperature automatic unlocking device 8, the high-temperature automatic unlocking device 8 comprises a locking column 81, wherein a limit column 82 is arranged in a hollow manner in the locking column 81 in a sliding manner, a fusible metal block 83 is fixedly arranged on the inner wall of one end, far away from a hooking part 872, of the locking column 81, a first spring 84 for abutting against the fusible metal block 83 is fixedly arranged on the inner wall of the locking column 81, the first spring 84 is a compression spring, the end of the first spring 84 is fixedly connected with the limit column 82, an installing plate 85 is arranged on the outer wall of an upper cover 2 in an extending manner, an installing column 86 is arranged on the inner wall of the installing plate 85 in an extending manner, a lever 87 in a rotating connection is sleeved on the installing column 86, a hooking part 872 matched with the limit column 82 is arranged on one end of the lever 87 in an extending manner, a second spring 88 for controlling the lever 87 to rotate is sleeved on the installing column 86, and when the valve clack 51 is driven to move upwards by using a spanner or a sleeve rod until the hooking part 872 is hooked with the limit column 82, when the temperature of the area where the valve body 4 is kept in an open state and is convenient for the normal operation of the equipment is too high, the fusible metal block 83 is heated and softened and melted, at the moment, one end of the first compression spring which is abutted against the fusible metal block 83 is in non-blocking movement, the limit post 82 is driven to slide and sink into the locking post 81, the hook part 872 is caused to lose the hook connection with the limit post 82, at the moment, the rotating rod 21 is driven by the reset spring 22 to automatically rotate, the valve clack 51 is driven to move downwards and return, the valve body 4 can be automatically closed to achieve the effect of high-temperature emergency cutting off the combustible gas pipeline to avoid leakage, compared with a comparison file, the fusible metal block 83 is arranged inside the locking post 81, the condition that the fusible metal block 83 is not protected and exposed to the outside and is easy to cause unexpected deformation under the external force is avoided, the whole working stability of the equipment is improved, meanwhile, the exposed parts of the equipment are reduced, and the occupied space is smaller, the utility model is convenient to be installed in a narrow space, the applicability is improved, the outer wall of one end of the locking column 81 close to the fusible metal block 83 is penetrated and provided with a plurality of outflow holes 811, when a fire disaster or high temperature is met, the temperature reaches the melting temperature set by the fusible metal block 83, the fusible alloy in the locking column 81 is melted, the liquid alloy in the outflow holes 811 flows out from the outflow holes, the cavity is convenient to be formed inside, at the moment, the first spring 84 automatically drives the limit column 82 to slide into the locking column 81 until the hooking part 872 and the locking column 81 are completely unhooked, one end of the rotating rod 21 far away from the upper cover 2 is fixedly provided with a hexagonal structure 211, one end of the lever 87 far away from the hooking part 872 is extended and provided with a lengthening handle 871, when a working site does not have an air source, the valve body 4 is conveniently opened and closed under the control of the rotation control of the rotating rod 21, and a wrench or a sleeve rod is used to rotate a certain angle on the hexagonal structure 211 during the manual operation, the hook part 872 and the limit post 82 are matched and locked to realize self-locking, at the moment, the valve body 4 is quickly opened, the lengthened handle 871 of the lever 87 is pressed, the hook part 872 is lifted to be separated from the limit post 82, the self-locking device is unlocked, the rotating rod 21 is driven by the reset spring 22 to automatically rotate to drive the valve clack 51 to move downwards for homing, at the moment, the valve body 4 is quickly closed, the mounting plate 85 is arranged around the wrapping lever 87 and the locking post 81, the side of the mounting plate 85 away from the upper cover 2 is extended to be provided with a vertical protective cover plate 851, the protective cover plate 851 covers the lever 87 and the locking post 81, the protective cover plate 851 is penetrated and provided with a plurality of observation mounting holes 852, the protective cover plate 851 is combined with the mounting plate 85 to achieve the effect of isolating the protective locking post 81 and the lever 87, the condition that the locking post is quickly rotated to damage people or other objects when the valve body 4 is manually closed can be prevented, the safety protection effect is realized, the safety of the stability of the equipment is improved, the setting of the mounting hole 852 is convenient for operators to intuitively observe the running state of the components, the mounting hole can also be used as a mounting hole to facilitate the follow-up installation or disassembly operation, the guiding device 6 comprises a guiding cylinder 61, the guiding cylinder 61 is embedded with a sleeve 3 and fixedly connected with a rotating rod 21, the upper cover 2 is fixedly provided with a limiting cylinder 62 which wraps the guiding cylinder 61, the guiding cylinder 61 is penetrated and provided with a spiral guiding groove 611, the limiting cylinder 62 is penetrated and provided with a vertical limiting groove 621 which is matched with the guiding groove 611, one end outer edge of the rod body 5 penetrating the guiding cylinder 61 is extended and provided with a guiding column 63 penetrating the guiding groove 611 and the limiting groove 621, the outer wall of the guiding column 63 is fixedly sleeved with a rolling sleeve 631, the limiting groove 621 is vertically arranged to limit the guiding column 63 to move up and down in the limiting groove 621, the rod body 5 is prevented from rotating and shifting, the matching sleeve 3 strictly limits the movement direction of the rod body 5, the movement stability of equipment is improved, the spiral guide groove 611 has good guide effect, when the rotating rod 21 rotates to drive the guide cylinder 61 to rotate, the guide groove 611 is closely matched with the guide post 63 in the rotating process, the guide post 63 is controlled to move upwards or downwards so as to drive the rod body 5 to wholly ascend or descend, the good guide effect is started, meanwhile, the friction force between the guide post 63 and the limit groove 621 and the guide groove 611 is greatly reduced by the rolling sleeve 631, the abrasion of the contact surface of the equipment is reduced, the service life is also improved while the operation is stable, the surface of the outer wall of the limit cylinder 62 is wrapped by the anti-slip sleeve 623 fixedly connected with the upper cover 2, the surface of the rotating rod 21, which is close to the limit cylinder 62, is fixedly sleeved with the plane bearing 622, one end of the plane bearing 622 is fixedly connected with the reset spring 22, the anti-slip sleeve 623 is used for blocking the limit rolling sleeve 631, the effect of preventing the rolling sleeve 631 from falling off, the rotating rod 21 and the limit cylinder 62 are arranged in a direct contact mode, when lubrication or installation angle is not completely matched, the rotating resistance of the rotating rod 21 can be greatly increased, the friction force between the plane bearing 622 and the plane bearing can be effectively reduced, and the equipment can be additionally arranged, and stable operation can be ensured.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides an emergency cut-off valve with high Wen Jiesuo device, includes valve gap subassembly (1), valve gap subassembly (1) has set gradually upper cover (2), sleeve (3) and valve body (4) from last to having set gradually down along the direction of gravity, sleeve (3) both ends are fixed connection upper cover (2) and valve body (4) setting respectively, sleeve (3) laminating inner wall slip parcel is provided with body of rod (5), upper cover (2) run through the block and are provided with dwang (21), sleeve (3) inner wall is fixed to be provided with reset spring (22) that drive dwang (21) reset, reset spring (22) fixed connection dwang (21) set up, dwang (21) outer fringe is fixed to be provided with locking post (81), the one end that dwang (21) are close to body of rod (5) is fixed to be provided with control body of rod (5) along gliding guider (6) of length direction, body of rod (5) are close to one end fixed being provided with control body of rod (4) and are opened and close, sleeve (3) inside fixed being provided with control body of rod (5) valve (21) reset spring (22), valve body (7) inside is kept away from pneumatic device (8) top that is located on top part (8), high temperature unlocking device is located to install valve body (7). The high-temperature automatic unlocking device (8) comprises a locking column (81), the locking column (81) is provided with a limiting column (82) in a hollow manner, one end inner wall of the locking column (81) away from a hooking portion (872) is fixedly provided with a fusible metal block (83), the inner side wall of the locking column (81) is fixedly provided with a first spring (84) for abutting against the fusible metal block (83), the first spring (84) is a compression spring, the tail end of the first spring (84) is fixedly connected with the limiting column (82) in a set mode, the outer wall of the upper cover (2) is provided with a mounting plate (85) in an extending mode, the inner wall of the mounting plate (85) is provided with a mounting column (86), the mounting column (86) is sleeved with a lever (87) in a rotating mode, one end of the lever (87) is provided with a hooking portion (872) matched with the limiting column (82), and the mounting column (86) is sleeved with a second spring (88) for controlling the lever (87) to rotate.

2. An emergency shutdown valve having a high Wen Jiesuo unit as defined in claim 1, wherein: a plurality of outflow holes (811) are formed in the outer wall of one end, close to the fusible metal block (83), of the locking column (81) in a penetrating mode.

3. An emergency shutdown valve having a high Wen Jiesuo unit as defined in claim 1, wherein: one end of the rotating rod (21) far away from the upper cover (2) is fixedly provided with a hexagonal structure (211), and one end of the lever (87) far away from the hooking part (872) is extended and provided with an lengthening handle (871).

4. An emergency shutdown valve having a high Wen Jiesuo unit as defined in claim 1, wherein: the mounting plate (85) surrounds and wraps up lever (87) and locking post (81) setting, the one side extension that upper cover (2) was kept away from to mounting plate (85) is provided with vertically protection apron (851), protection apron (851) lid closes lever (87) and locking post (81) setting, protection apron (851) runs through and is provided with a plurality of observation mounting hole (852).

5. An emergency shutdown valve having a high Wen Jiesuo unit as defined in claim 1, wherein: the guiding device (6) comprises a guiding cylinder (61), the guiding cylinder (61) is embedded with a sleeve (3) and is fixedly connected with a rotating rod (21), a limiting cylinder (62) wrapping the guiding cylinder (61) is fixedly arranged on the upper cover (2), the guiding cylinder (61) penetrates through a spiral guiding groove (611) and a vertical limiting groove (621) matching with the guiding groove (611) is formed in the limiting cylinder (62), a guiding column (63) penetrating into the guiding groove (611) and the limiting groove (621) is formed in the outer edge of one end of the rod body (5) penetrating into the guiding cylinder (61), and a rolling sleeve (631) is fixedly sleeved on the outer wall of the guiding column (63).

6. An emergency shutdown valve having a high Wen Jiesuo unit according to claim 5, wherein: the anti-drop sleeve (623) fixedly connected with the upper cover (2) is wrapped on the outer wall of the limiting cylinder (62), a plane bearing (622) is fixedly sleeved on one surface of the rotating rod (21) close to the limiting cylinder (62), and the plane bearing (622) is fixedly connected with one end of the reset spring (22).