Valve body mechanism with automatic pop-up valve cover

Abstract

The present invention discloses a valve body mechanism with a valve cover that can be automatically ejected, which solves the problem of how to realize convenient manual intervention and reliable opening of the valve cover in an emergency. First, a valve cover ejection compression spring (8) is sleeved on the plug body of a cylindrical plug-shaped valve cover (6), and then a compression spring assembly annular process plate (9) is sleeved on the plug body of the cylindrical plug-shaped valve cover (6), and a compression spring assembly bolt (12) is screwed with a process plate connecting screw hole (10) on the compression spring assembly annular process plate (9), so that an L-shaped groove (13) on the outer circle of the inner end surface of the plug body of the cylindrical plug-shaped valve cover (6) is matched with an outer pin head of a movable pin (16) in a movable pin cylinder seat (14); the cylindrical plug-shaped valve cover (6) is rotated counterclockwise so that the outer pin head of the movable pin (16) is clamped to the arc-shaped horizontal section of the L-shaped groove (13), thereby completing the pin body limiting the cylindrical plug-shaped valve cover (6); the present invention is simple and fast to install and can be put in place in one go.

Description

Technical Field

[0001] The invention relates to a valve cover for a closed container, in particular to a valve body mechanism of a cylindrical closed warehouse body which can pop out automatically. Background Art

[0002] Some cylindrical closed pressure vessels used for experiments are equipped with safety explosion-proof valve covers, which are used to open the closed chamber to release pressure when the pressure in the container is abnormal and the safety explosion-proof valve fails. The chamber door on the cylindrical closed pressure vessel can also be used for the inspection and replacement of various equipment and instruments in the closed chamber. Since various test equipment and their power supply systems are installed in the cylindrical closed pressure vessel used for experiments, the valve cover cannot be opened into the chamber to prevent damage to the equipment in the chamber. The test needs to be repeated many times, and sometimes the valve cover mechanism needs to be opened and installed repeatedly. Therefore, it is necessary to develop a valve cover mechanism that can be reliably opened by manual intervention on site, and the repeated installation process of the mechanism is required to be simple and easy. Summary of the invention

[0003] The present invention provides a valve body mechanism with a valve cover that can automatically pop out, which solves the technical problem of how to enable manual intervention and reliable opening of the valve cover in an emergency situation.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A valve body mechanism with a valve cover that can automatically pop up, comprising a cylindrical valve body seat, a stepper motor remote controller, a stepper motor and a cylindrical plug-shaped valve cover, the stepper motor remote controller is electrically connected to the stepper motor, a valve cover annular eaves is arranged on the outer circle of the outer end face of the cylindrical plug-shaped valve cover, a valve body seat outer countersunk hole is arranged on the outer end face of the cylindrical valve body seat, a valve body seat inner countersunk hole is arranged on the inner end face of the cylindrical valve body seat, a pressure relief through hole is arranged between the valve body seat outer countersunk hole and the valve body seat inner countersunk hole, and the cylindrical plug-shaped valve cover is arranged In the pressure relief through hole, a sealing ring is arranged between the plug body of the cylindrical plug-shaped valve cover and the pressure relief through hole, a valve cover ejection compression spring is arranged between the valve cover annular eaves and the bottom surface of the countersunk hole outside the valve body seat, the inner end of the plug body of the cylindrical plug-shaped valve cover is arranged in the countersunk hole inside the valve body seat, and L-shaped grooves for inserting movable pins are arranged at equal intervals on the outer circle of the inner end surface of the plug body of the cylindrical plug-shaped valve cover. A movable pin cylindrical seat body is fixedly arranged on the bottom surface of the countersunk hole inside the valve body seat outside the L-shaped groove, and a movable pin crimping spring is arranged in the movable pin cylindrical seat body and a movable pin, the inner end of the movable pin is movably inserted in the L-shaped slot, a redirecting fixed pulley is arranged on the bottom surface of the inner countersunk hole of the valve body seat outside the cylindrical seat of the movable pin, a valve body seat inner ball embedding groove is arranged on the inner side surface of the hole of the inner countersunk hole of the valve body seat, an annular inner ring is movably arranged in the inner countersunk hole of the valve body seat, an annular inner ring outer ball embedding groove is arranged on the outer side surface of the annular inner ring, a ball is arranged between the annular inner ring outer ball embedding groove and the valve body seat inner ball embedding groove, and a ball is arranged on the inner side surface of the annular inner ring An arc-shaped rack and a pull ear are respectively fixedly arranged, and a stepper motor seat is arranged on the bottom surface of the countersunk hole inside the valve body seat, and a stepper motor is arranged on the stepper motor seat. A gear is arranged on the output shaft of the stepper motor, and the gear is meshed with the arc-shaped rack; a movable pin pull ring is arranged on the outer pin head of the movable pin, and a movable pin pull rope is connected to the movable pin pull ring, and the other end of the movable pin pull rope passes through the movable pin crimping spring, the bottom cover of the movable pin cylindrical seat body and the redirecting fixed pulley in sequence, and is connected to the pull ear on the inner side surface of the annular inner ring.

[0006] Four L-shaped slots are arranged at equal intervals on the outer circle of the inner side surface of the cylindrical valve cover, and four movable pin cylinder-shaped seat bodies are fixedly arranged on the bottom surface of the countersunk hole inside the valve body seat.

[0007] Four screw holes for assembling a valve cover ejection compression spring are arranged at equal intervals on the annular eaves of the valve cover. An annular process plate for assembling a compression spring is movably sleeved on the plug body of the cylindrical plug-shaped valve cover. Four process plate connecting screw holes are arranged on the annular process plate for assembling the compression spring. A valve cover ejection compression spring is arranged between the annular process plate for assembling the compression spring and the annular eaves of the valve cover. The compression spring assembling bolts pass through the screw holes for assembling the valve cover ejection compression spring and the valve cover ejection compression spring in sequence, and are screwed together with the process plate connecting screw holes.

[0008] A method for assembling a valve body mechanism with a valve cover that can automatically pop up comprises the following steps:

[0009] The first step is to sleeve the valve cover ejection compression spring onto the plug body of the cylindrical plug-shaped valve cover, so that the upper end of the valve cover ejection compression spring is close to the valve cover annular eaves, and then sleeve the annular process plate for compression spring assembly onto the plug body of the cylindrical plug-shaped valve cover, and then, pass the compression spring assembly bolts through the valve cover ejection compression spring assembly screw holes and the valve cover ejection compression spring in sequence, and then screw them together with the process plate connecting screw holes on the annular process plate for compression spring assembly, and at the same time, adjust the four compression spring assembly bolts to make the valve cover ejection compression spring in a compressed state;

[0010] Step 2: Insert the cylindrical plug-shaped valve cover with the valve cover ejection compression spring assembled in the first step into the pressure relief through hole, so that the L-shaped groove on the outer circle of the inner end surface of the plug body of the cylindrical plug-shaped valve cover is matched with the outer pin head of the movable pin in the movable pin cylinder seat body;

[0011] Step 3: Rotate the cylindrical plug-shaped valve cover counterclockwise to make the outer pin head of the movable pin snap into the arc-shaped horizontal section of the L-shaped slot, thus completing the position limitation of the pin body on the cylindrical plug-shaped valve cover;

[0012] Step 4: Rotate the compression spring assembly bolts in the opposite direction to release the screw connection between the compression spring assembly bolts and the screw holes of the process plate, and pull the compression spring assembly bolts out of the valve cover ejection compression spring and the valve cover ejection compression spring assembly screw holes;

[0013] The fifth step is to control the stepper motor to rotate an angle in the clockwise direction through the stepper motor remote control. The gear set on the output shaft of the stepper motor also rotates an angle. The gear meshes with the arc-shaped rack to make the annular inner ring rotate an angle. The pull ear on the inner side surface of the annular inner ring pulls the movable pin back to the movable pin cylindrical seat through the movable pin pull rope. The limit of the cylindrical plug valve cover is released, and the cylindrical plug valve cover is ejected out of the cylindrical valve body seat under the action of the valve cover ejection compression spring.

[0014] The present invention is easy and quick to install and can be put in place at one time. In an emergency, the motor action can be effectively controlled to realize reliable opening of the valve cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 yes Figure 1 A local enlarged view of point A in FIG.

[0017] Figure 3 It is a schematic diagram of the structure of the present invention in the left viewing direction;

[0018] Figure 4 is a schematic structural diagram of the annular inner ring 21 of the present invention;

[0019] Figure 5 It is a schematic structural diagram of the countersunk hole 3 inside the valve body seat of the present invention;

[0020] Figure 6 It is a schematic structural diagram of a cylindrical plug-shaped valve cover 6 with a valve cover ejection compression spring 8 of the present invention. DETAILED DESCRIPTION

[0021] The present invention is described in detail below in conjunction with the accompanying drawings:

[0022] A valve body mechanism with a valve cover that can automatically pop up, comprising a cylindrical valve body seat 1, a stepper motor remote control, a stepper motor 27 and a cylindrical plug-shaped valve cover 6, wherein the stepper motor remote control is electrically connected to the stepper motor 27, a valve cover annular eave 7 is arranged on the outer circle of the outer end face of the cylindrical plug-shaped valve cover 6, a valve body seat outer countersunk hole 2 is arranged on the outer end face of the cylindrical valve body seat 1, a valve body seat inner countersunk hole 3 is arranged on the inner end face of the cylindrical valve body seat 1, a pressure relief through hole 4 is arranged between the valve body seat outer countersunk hole 2 and the valve body seat inner countersunk hole 3, the cylindrical plug-shaped valve cover 6 is arranged in the pressure relief through hole 4, between the plug body of the cylindrical plug-shaped valve cover 6 and the pressure relief through hole 4, A sealing ring 5 is provided, a valve cover ejection compression spring 8 is provided between the valve cover annular eave 7 and the bottom surface of the countersunk hole 2 on the outside of the valve body seat, the inner end of the plug body of the cylindrical plug-shaped valve cover 6 is arranged in the countersunk hole 3 on the inside of the valve body seat, and L-shaped slots 13 for inserting movable pins are arranged at equal intervals on the outer circle of the inner end surface of the plug body of the cylindrical plug-shaped valve cover 6. A movable pin cylindrical seat body 14 is fixedly provided on the bottom surface of the countersunk hole 3 on the inside of the valve body seat outside the L-shaped slot 13, and a movable pin crimping spring 15 and a movable pin 16 are provided in the movable pin cylindrical seat body 14. The inner end of the movable pin 16 is movably inserted in the L-shaped slot 13, and the inner countersunk hole 3 on the inside of the valve body seat outside the movable pin cylindrical seat body 14 is provided. On the bottom surface, a redirecting fixed pulley 19 is provided, and on the inner side surface of the hole of the inner counterbore 3 of the valve body seat, a valve body seat inner ball embedding groove 24 is provided. In the valve body seat inner counterbore 3, an annular inner ring 21 is movably provided, and on the outer side surface of the annular inner ring 21, an annular inner ring outer ball embedding groove 22 is provided, and between the annular inner ring outer ball embedding groove 22 and the valve body seat inner ball embedding groove 24, a ball 23 is provided. The annular inner ring 21, the ball 23 and the inner side surface of the hole of the inner counterbore 3 of the valve body seat form a structure similar to a bearing. The inner side surface of the hole of the inner counterbore 3 of the valve body seat is similar to the outer ring of a bearing, and the annular inner ring 21 is similar to the inner ring of a bearing. The inner side surfaces are respectively fixedly provided with arc-shaped racks 25 and pull ears 20; a stepper motor seat 28 is provided on the bottom surface of the countersunk hole 3 inside the valve body seat; a stepper motor 27 is provided on the stepper motor seat 28; a gear 26 is provided on the output shaft of the stepper motor 27; the gear 26 is meshed with the arc-shaped rack 25; a movable pin pull ring 17 is provided on the outer pin head of the movable pin 16; a movable pin pull rope 18 is connected to the movable pin pull ring 17; the other end of the movable pin pull rope 18 passes through the movable pin crimping spring 15, the bottom cover of the movable pin cylindrical seat body 14 and the redirecting fixed pulley 19 in sequence, and is connected to the pull ear 20 on the inner side surface of the annular inner ring 21;When the stepper motor 27 is controlled by the stepper motor remote controller and rotates by an angle, the gear 26 on the output shaft of the stepper motor will also rotate by the same angle. The gear 26 meshes with the arc-shaped rack 25, so that the annular inner ring 21 rotates clockwise by the same arc angle relative to the inner countersunk hole 3 of the valve body seat. The pull ear 20 on the annular inner ring 21 also rotates with the rotation of the annular inner ring 21. The pull ear 20 pulls the movable pin pull rope 18 to rotate. The movable pin pull rope 18 is redirected to a radial direction through the redirecting fixed pulley 19, and the movable pin 16 is pulled outward. After the movable pin 16 compresses the movable pin crimping spring 15, the inner end of the movable pin 16 withdraws outward from the L-shaped slot 13, so that the cylindrical valve cover 6 is released from the movable pin 16 set in the movable pin cylindrical seat 14. At this time, the cylindrical valve cover 6 is ejected under the action of the valve cover ejection compression spring 8, completing the opening action of the valve cover. ;

[0023] Four L-shaped slots 13 are arranged at equal intervals on the outer circle of the inner side surface of the cylindrical valve cover 6, and four movable pin cylinder-shaped seat bodies 14 are fixedly arranged on the bottom surface of the inner countersunk hole 3 of the valve body seat, and two of them cooperate to form a limiting mechanism of the cylindrical valve cover 6.

[0024] Four valve cover ejection compression spring assembly screw holes 11 are arranged at equal intervals on the valve cover annular eaves 7, and an annular process plate 9 for compression spring assembly is movably sleeved on the plug body of the cylindrical plug-shaped valve cover 6. Four process plate connecting screw holes 10 are arranged on the annular process plate 9 for compression spring assembly, and a valve cover ejection compression spring 8 is arranged between the annular process plate 9 for compression spring assembly and the valve cover annular eaves 7. The compression spring assembly bolts 12 pass through the valve cover ejection compression spring assembly screw holes 11 and the valve cover ejection compression spring 8 in turn, and are screwed together with the process plate connecting screw holes 10; the cooperation between the annular process plate 9 for compression spring assembly and the compression spring assembly bolts 12 places the pre-stressing work of the valve cover ejection compression spring 8 before the cover is installed, which greatly facilitates the assembly of the entire mechanism.

[0025] A method for assembling a valve body mechanism with a valve cover that can automatically pop up comprises the following steps:

[0026] The first step is to sleeve the valve cover ejection compression spring 8 on the plug body of the cylindrical plug-shaped valve cover 6, so that the upper end of the valve cover ejection compression spring 8 is close to the valve cover annular eaves 7, and then sleeve the compression spring assembly annular process plate 9 on the plug body of the cylindrical plug-shaped valve cover 6, and then, after the compression spring assembly bolts 12 pass through the valve cover ejection compression spring assembly screw holes 11 and the valve cover ejection compression spring 8 in sequence, they are screwed together with the process plate connecting screw holes 10 on the compression spring assembly annular process plate 9, and at the same time, adjust the four compression spring assembly bolts 12 to make the valve cover ejection compression spring 8 in a compressed state;

[0027] Step 2: Insert the cylindrical plug-shaped valve cover 6 with the valve cover ejection compression spring 8 assembled in the first step into the pressure relief through hole 4, so that the L-shaped groove 13 on the outer circle of the inner end surface of the plug body of the cylindrical plug-shaped valve cover 6 is matched with the outer pin head of the movable pin 16 in the movable pin cylinder seat body 14;

[0028] Step 3: Rotate the cylindrical plug-shaped valve cover 6 counterclockwise to make the outer pin head of the movable pin 16 snap into the arc-shaped horizontal section of the L-shaped slot 13, so as to limit the position of the pin body to the cylindrical plug-shaped valve cover 6;

[0029] Step 4: Rotate the compression spring assembly bolt 12 in the opposite direction to release the screw connection between the compression spring assembly bolt 12 and the process plate connection screw hole 10, and pull the compression spring assembly bolt 12 out of the valve cover ejection compression spring 8 and the valve cover ejection compression spring assembly screw hole 11;

[0030] Step 5. Control the stepper motor 27 to rotate an angle in the clockwise direction through the stepper motor remote control. The gear 26 set on the output shaft of the stepper motor 27 also rotates an angle. The gear 26 engages with the arc-shaped rack 25 to make the annular inner ring 21 rotate an angle. The pull ear 20 on the inner side surface of the annular inner ring 21 pulls the movable pin 16 back to the movable pin cylindrical seat body 14 through the movable pin pull rope 18. The limit of the cylindrical plug-shaped valve cover 6 is released. Under the action of the valve cover ejection compression spring 8, the cylindrical plug-shaped valve cover 6 is ejected out of the cylindrical valve body seat 1.

Claims

1. A valve body mechanism with a valve cover that can automatically pop out, comprising a cylindrical valve body seat (1), a stepper motor remote controller, a stepper motor (27) and a cylindrical plug-shaped valve cover (6), wherein the stepper motor remote controller is electrically connected to the stepper motor (27), a valve cover annular ridge (7) is provided on the outer circle of the outer end surface of the cylindrical plug-shaped valve cover (6), a valve body seat outer countersunk hole (2) is provided on the outer end surface of the cylindrical valve body seat (1), a valve body seat inner countersunk hole (3) is provided on the inner end surface of the cylindrical valve body seat (1), a pressure relief through hole (4) is provided between the valve body seat outer countersunk hole (2) and the valve body seat inner countersunk hole (3), the cylindrical plug-shaped valve cover (6) is provided in the pressure relief through hole (4), and a sealing ring (5) is provided between the plug body of the cylindrical plug-shaped valve cover (6) and the pressure relief through hole (4), characterized in that: A valve cover ejection compression spring (8) is arranged between the valve cover annular flange (7) and the bottom surface of the countersunk hole (2) on the outside of the valve body seat. The inner end of the plug body of the cylindrical plug-shaped valve cover (6) is arranged in the inner countersunk hole (3) on the inside of the valve body seat. L-shaped slots (13) for inserting movable pins are arranged at equal intervals on the outer circle of the inner end surface of the plug body of the cylindrical plug-shaped valve cover (6). A movable pin cylindrical seat body (14) is fixedly arranged on the bottom surface of the inner countersunk hole (3) on the outside of the L-shaped slot (13). ) is provided with a movable pin crimping spring (15) and a movable pin (16), the inner side end of the movable pin (16) is movably inserted into the L-shaped slot (13), a redirecting fixed pulley (19) is provided on the bottom surface of the inner counterbore (3) of the valve body seat outside the movable pin cylindrical seat body (14), a valve body seat inner ball embedding groove (24) is provided on the inner side surface of the inner counterbore (3) of the valve body seat, an annular inner ring (21) is movably provided in the inner counterbore (3) of the valve body seat, and an outer ring (21) is provided on the outer surface of the annular inner ring (21). An annular inner ring outer ball embedding groove (22) is provided on the side surface, a ball (23) is provided between the annular inner ring outer ball embedding groove (22) and the valve body seat inner ball embedding groove (24), an arc-shaped rack (25) and a pull ear (20) are fixedly provided on the inner side surface of the annular inner ring (21), a stepper motor seat (28) is provided on the bottom surface of the countersunk hole (3) on the inner side of the valve body seat, a stepper motor (27) is provided on the stepper motor seat (28), and an output of the stepper motor (27) is provided on the output of the stepper motor (27). A gear (26) is provided on the output shaft, and the gear (26) is meshed with the arc-shaped rack (25); a movable pin pull ring (17) is provided on the outer pin head of the movable pin (16), and a movable pin pull rope (18) is connected to the movable pin pull ring (17); the other end of the movable pin pull rope (18) passes through the movable pin crimping spring (15), the bottom cover of the movable pin cylindrical seat body (14) and the redirecting fixed pulley (19) in sequence, and is connected to the pull ear (20) on the inner side surface of the annular inner ring (21).

2. A valve body mechanism with a valve cover that can automatically pop up according to claim 1, characterized in that: Four L-shaped slots (13) are arranged at equal intervals on the outer circle of the inner side surface of the cylindrical plug-shaped valve cover (6), and four movable pin-cylinder-shaped seat bodies (14) are fixedly arranged on the bottom surface of the inner countersunk hole (3) of the valve body seat.

3. A valve body mechanism with a valve cover that can automatically pop up according to claim 1 or 2, characterized in that: Four valve cover ejection compression spring assembly screw holes (11) are arranged at equal intervals on the valve cover annular flange (7); a compression spring assembly annular process plate (9) is movably sleeved on the plug body of the cylindrical plug-shaped valve cover (6); four process plate connecting screw holes (10) are arranged on the compression spring assembly annular process plate (9); a valve cover ejection compression spring (8) is arranged between the compression spring assembly annular process plate (9) and the valve cover annular flange (7); and a compression spring assembly bolt (12) passes through the valve cover ejection compression spring assembly screw hole (11) and the valve cover ejection compression spring (8) in sequence and is then screwed together with the process plate connecting screw hole (10).

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