A tank front emergency shut-off valve

Abstract

The present invention discloses a tank front emergency shut-off valve, comprising an emergency shut-off execution valve, a vibration temperature sensing device and a reset holding mechanism; the reset holding mechanism comprises a reset handle and a trigger unlocking mechanism; the trigger unlocking mechanism comprises a lock claw, a lock body, a lock rod, a lock core, a reset piece and a manual automatic button; in a normal state, the movement of the lock rod is restricted by the core cone surface of the lock core, a steel ball and a body center hole of the lock body; in case of fire or earthquake, the vibration temperature sensing device is triggered to make the vibration-detecting steel ball fall to the manual automatic button, thereby driving the lock core to move downward to unlock the lock rod, so that the lock rod moves upward and releases the reset handle, thereby no longer restricting the movement of the transmission mechanism of the emergency shut-off execution valve, thereby putting the valve in a shut-off state.

Description

Technical Field

[0001] The present invention relates to an earthquake fire tank front emergency cut-off device, in particular to a tank front emergency cut-off valve used for loading and unloading oil tanks such as ground oil storage tanks. Background Art

[0002] The statements in this section only provide background information related to the present disclosure, and these statements may constitute prior art. In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art.

[0003] Modern ground oil storage tanks and other facilities have very strict safety requirements, and have also put forward new requirements for safer automated control, especially for oil facilities to resist natural disasters and accidental fire accidents. New and higher requirements are put forward for the valves before entering the tank to detect earthquakes and fires, and automatically realize rapid cut-off control.

[0004] At present, when earthquakes and fire accidents occur in ground oil storage tanks and other facilities, they are closed manually, which will lead to untimely closure and it is difficult for humans to get close to the disaster site. As a result, accidents and losses caused by accidents cannot be further expanded due to the inability to close.

[0005] The use of remote control to close the valve will also be affected. If a fire burns the line, or an earthquake buries the ground and blocks the signal, it is very likely that the valve cannot be closed remotely. Summary of the invention

[0006] In view of the above problems, the object of the present invention is to solve part of the problems in the prior art, or at least alleviate these problems.

[0007] A tank front emergency shut-off valve, comprising

[0008] The emergency cut-off actuator valve comprises a valve body, a transmission mechanism and an elastic member; the transmission mechanism maintains the force of cutting off the oil inlet and outlet ports inside the valve body through the elastic member;

[0009] A vibration temperature sensing device, used to drop a vibration-sensing steel ball when an earthquake or / and fire is sensed;

[0010] The reset holding mechanism comprises a reset handle and a trigger unlocking mechanism; the first end of the reset handle is fixedly connected to the transmission mechanism; the trigger unlocking mechanism comprises a lock claw with a lock hook, a lock body, a lock rod, a lock core, a reset piece and a manual automatic button; the movable end of the lock claw is used to lock or unlock the second end of the reset handle, and the fixed end is fixedly connected to the first end of the lock rod; the second end of the lock rod is hollow and is provided in a ball hole for accommodating a steel ball, and the first end of the lock core can move up and down in the lock rod; the first end of the manual automatic button is fixedly connected to the second end of the lock core, and the second end is used to catch the falling seismic steel ball; the lock body is fixedly connected to the valve body, and the lock rod can move up and down in the lock body; the lock body is provided with a body countersunk hole matched with the lock claw; the interior of the lock body is provided with a body center hole matched with the steel ball; the lock core is provided with a core cone surface; the reset piece is located between the lock core and the manual automatic button.

[0011] The second end of the reset handle is provided with a handle lock tongue with a conical surface, which is matched with the lock hook of the lock claw.

[0012] The first end of the manual automatic button is fixedly connected to the second end of the lock core through a lock core screw.

[0013] The trigger unlocking mechanism also includes a lock cap sleeved on the second end of the lock core; the reset member includes a lock spring sleeved on the lock core screw, and / or a reset spring II arranged between the lock cap and the lock rod.

[0014] A return spring IV is provided between the second end of the manual automatic button and the valve body.

[0015] The vibration temperature sensing device comprises a ball support, a trigger, a steel ball conduit and a seismic steel ball (33); the stepped screw hole of the ball support is connected to the steel ball conduit; one end of the trigger is fixedly connected to the ball support, and the other end and the ball support are used to support the seismic steel ball.

[0016] The trigger comprises a fusible spring adjusting screw, a ball support and a supporting spring; the supporting spring is arranged between the ball support and the fusible spring adjusting screw.

[0017] The vibration temperature sensing device further includes a protective cover.

[0018] The second end of the manual automatic button is provided with a steel ball cup for receiving a seismic steel ball.

[0019] The crank shaft of the transmission mechanism can rotate within the valve body; the first end of the crank shaft is fixedly connected to the first end of the reset handle, and the second end is fixedly connected to the sleeve valve core through the crank, connecting rod, connecting rod seat, and valve stem; the valve body is provided with an inner liner with a spring seat, and the spring seat can slide within the inner liner; a reset spring I is provided between the spring seat and the inner liner.

[0020] The present invention has the following beneficial effects:

[0021] 1. The emergency shut-off valves in front of the tank all adopt mechanical structures, which will not affect the emergency shut-off function due to fire burning the circuit or signal problems; and they are fully automated, without manual operation, and can be operated in time to avoid greater losses;

[0022] 2. Simple and reliable structure, low cost;

[0023] 3. After emergency cut-off, it can still be reset and reused;

[0024] 4. The fusible spring adjusting screw and the supporting spring can be selected according to actual needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a cross-sectional left view of the present invention in the alert state;

[0026] Figure 2 It is a cross-sectional front view of the present invention in the alert state;

[0027] Figure 3 It is a cross-sectional top view of the present invention in the alert state;

[0028] Figure 4 It is an enlarged cross-sectional view of the reset holding mechanism of the present invention in the alert state;

[0029] Figure 5 It is a cross-sectional left view of the present invention in the execution state;

[0030] Figure 6 It is a cross-sectional front view of the present invention in the execution state;

[0031] Figure 7 It is a cross-sectional top view of the present invention in execution state;

[0032] Figure 8 It is an enlarged cross-sectional view of the reset and holding mechanism in the execution state of the present invention;

[0033] Fig. 9 It is a cross-sectional view of the connection between the reset and holding mechanism of the present invention and other mechanisms;

[0034] Fig.10 is a cross-sectional view of a vibration temperature sensing device of the present invention;

[0035] Fig.11 is a schematic diagram of a reset handle of the present invention;

[0036] Fig.12 is a cross-sectional view of a locking rod of the present invention;

[0037] Fig.13 It is a cross-sectional view of the lock core of the present invention.

[0038] Among them: 1-valve body; 1i-inlet and outlet; 1b-inner liner; 1p-body balance hole; 1s-rectangular groove; 2-connecting rod seat; 3-connecting rod; 4-crank; 7-spring seat; 8-valve stem; 9-reset spring I; 10-sleeve valve core; 10e-core sealing surface; 13-crank shaft; 15-reset handle; 15c-handle lock tongue; 16-sealing ring; 17-lock body; 17c-body center hole; 17f-body countersunk hole; 18-lock rod; 1 8g-ball hole; 19-lock core; 19a-core cone; 20-reset spring II; 21-lock spring; 22-lock cap; 23-lock core screw; 24-steel ball; 25-lock claw; 26-claw pin; 27-manual automatic button; 29-ball support; 29b-step screw hole 30-ball support; 31-support spring; 32-fusible spring adjustment screw; 33-seismic steel ball; 34-protective cover; 35-steel ball guide tube; 36-steel ball cup. DETAILED DESCRIPTION

[0039] The present invention is further described below in conjunction with the accompanying drawings. The embodiments of the present invention are only used to illustrate the present invention rather than to limit the present invention. Without departing from the technical idea of ​​the present invention, various substitutions and changes can be made according to common technical knowledge and customary means in the field, which should all be included in the scope of the present invention.

[0040] like Figures 1 to 13 As shown, a tank front emergency shut-off valve comprises

[0041] The emergency shut-off actuator valve comprises a valve body 1, a transmission mechanism and an elastic member; the transmission mechanism maintains the force of shutting off the oil inlet and outlet ports 1i inside the valve body 1 through the elastic member;

[0042] A vibration temperature sensing device, used to drop a vibration-sensing steel ball 33 when an earthquake or / and a fire is sensed;

[0043] The reset holding mechanism comprises a reset handle 15 and a trigger unlocking mechanism; the first end of the reset handle 15 is fixedly connected to the transmission mechanism; the trigger unlocking mechanism comprises a lock claw 25 with a lock hook, a lock body 17, a lock rod 18, a lock core 19, a reset member and a manual automatic button 27; the movable end of the lock claw 25 is used to lock or unlock the second end of the reset handle 15, and the fixed end is fixedly connected to the first end of the lock rod 18; the second end of the lock rod 18 is hollow and is provided in a ball hole 18g for accommodating a steel ball 24, and the first end of the lock core 19 can be in the lock rod 18 The first end of the manual-automatic button 27 is fixedly connected to the second end of the lock core 19, and the second end is used to catch the falling seismic steel ball 33; the lock body 17 is fixedly connected to the valve body 1, and the locking rod 18 can move up and down in the lock body 17; the lock body 17 is provided with a body countersunk hole 17f adapted to the locking claw 25; the interior of the lock body 17 is provided with a body center hole 17c adapted to the steel ball 24; the lock core 19 is provided with a core cone surface 19a; the reset member is located between the lock core 19 and the manual-automatic button 27.

[0044] The emergency shut-off actuator valve is mainly used to promptly cut off the oil inlet and outlet ports 1i inside the valve body 1 after a fire, earthquake, or other event triggers the vibration temperature sensing device, thereby closing the entire tank front emergency shut-off valve.

[0045] like Figure 2 As shown in or 3 or 6 or 7, the crank shaft 13 of the transmission mechanism can rotate in the valve body 1; the first end of the crank shaft 13 is fixedly connected to the first end of the reset handle 15, and the second end is fixedly connected to the sleeve valve core 10 through the crank 4, the connecting rod 3, the connecting rod seat 2, and the valve stem 8; the valve body 1 is provided with an inner liner 1b with a spring seat 7, and the spring seat 7 can slide in the inner liner 1b; a reset spring Ⅰ9 is provided between the spring seat 7 and the inner liner 1b.

[0046] Among them, the return spring Ⅰ9 makes the transmission mechanism always maintain the thrust to the right, such as Figure 2 As shown in FIG. 3 , once the reset handle 15 is disconnected from the trigger unlocking mechanism, the sleeve valve core 10 is driven to move rightward by pushing the connecting rod seat 2 and the valve stem 8 connected to the connecting rod seat 2, so that the core sealing surface 10e contacts the inner tank 1b, as shown in FIG. Figure 6 As shown, the oil inlet and outlet ports 1i in the valve body 1 are closed, and the connection between the oil tank and the pipeline is cut off. When the reset handle 15 is connected to the trigger unlocking mechanism, the crankshaft 13 is driven by the reset handle 15, so that the sleeve valve core 10 is separated from the inner tank 1b, as shown in FIG. Figure 3 As shown, the pipeline is connected to the oil tank.

[0047] The core sealing surface 10e and the inner liner 1b are both provided with a plurality of sealing rings 16 for better sealing.

[0048] The emergency shut-off actuator valve may have a variety of structural modes, not limited to the above structure.

[0049] like Figure 1 As shown in 5 or 10, the vibration temperature sensing device includes a ball support 29, a trigger, a steel ball conduit 35 and a seismic steel ball 33; the stepped screw hole 29b of the ball support 29 is connected to the steel ball conduit 35; one end of the trigger is fixedly connected to the ball support 29, and the other end and the ball support 29 are used to support the seismic steel ball 33.

[0050] Three downward-slanting stepped screw holes 29 b are evenly distributed on the circumference of the ball support 29 , and a ball support 30 , a fusible spring adjustment screw 31 , and a support spring 32 are arranged in the holes at the same time, and a seismic steel ball 33 is supported on the ball support 30 .

[0051] The trigger includes a fusible spring adjusting screw 32 , a ball support 30 and a supporting spring 31 ; the supporting spring 31 is disposed between the ball support 30 and the fusible spring adjusting screw 32 .

[0052] Under normal circumstances, the trigger and the ball support 29 jointly support the seismic steel ball 33 to prevent it from falling. Fig.10 As shown. When a fire occurs, the fusible spring adjusting screw 32 melts due to the high temperature. Or when an earthquake occurs, the supporting spring 31 contracts. Both of the above situations will cause the trigger to contract, thereby no longer supporting the seismic steel ball 33, causing it to fall along the steel ball guide tube 35 to the second end of the manual automatic button 27, thereby triggering the reset holding mechanism.

[0053] The heat-resistant state of the fusible spring adjusting screw 32 and the spring force of the supporting spring 31 can be selected as required to meet actual needs.

[0054] The vibration temperature sensing device further comprises a shield 34, such as Fig.10 The shield 34 can effectively prevent the seismic steel ball 33 from falling due to human factors. The seismic steel ball 33 can be sealed after being placed in the ball support 29.

[0055] The second end of the manual automatic button 27 is provided with a steel ball cup 36 for receiving the seismic steel ball 33. Figure 8 9. The steel ball cup 36 can well accommodate the fallen seismic steel ball 33 so that it will not affect the operation of the reset holding mechanism due to rolling. There can be a certain gap between the steel ball cup 36 and the steel ball conduit 35, so that it is convenient to take out the fallen seismic steel ball 33 for reset.

[0056] The steel ball conduit 35 can be fixedly connected to the valve body 1 by welding or other methods, so that the ball support 29 and other components thereon are fixed together.

[0057] The vibration temperature sensing device can also adopt other methods to drop the seismic steel ball. For example, in the balance plate method, when an earthquake occurs, the seismic steel ball 33 moves horizontally and can drop after crossing the balance plate.

[0058] The reset and hold mechanism is mainly used to control the opening and closing of the emergency cut-off actuator valve by controlling the rotation of the crank shaft 13 of the transmission mechanism. The first end of the reset handle 15 of the reset and hold mechanism is fixedly connected to the crank shaft 13. When in the alert state, the second end of the reset handle 15 is firmly grasped by the locking claw 25 with a locking hook, such as Figure 4 As shown, the spring force of the reset spring Ⅰ9 is overcome, so that the emergency cut-off actuator valve is in a connected state; when the seismic steel ball 33 falls, the lock hook of the lock claw 25 will release the second end of the reset handle 15, and the reset handle 15 no longer restricts the reset of the transmission mechanism, thereby putting the emergency cut-off actuator valve in a cut-off state.

[0059] The second end of the reset handle 15 is provided with a handle lock tongue 15c with a conical surface, which is matched with the lock hook of the lock claw 25. Figure 4 Or shown in 11. By arranging the handle lock tongue 15c with a tapered surface, the locking claw 25 can be made to grasp the reset handle 15 more easily to limit its rotation.

[0060] The locking claw 25 includes two locking hooks, one end of which is fixedly connected to the first end of the locking rod 18 through a claw pin 26, and the movable end of the locking claw 25 can be horizontally opened or closed to lock or unlock the second end of the reset handle. The lock body 17 is provided with a body countersunk hole 17f at a position corresponding to the locking claw 25. After the fixed end of the locking claw 25 enters the body countersunk hole 17f, the movable end of the locking claw 25 is restricted by the body countersunk hole 17f. Figure 4 As shown, it is impossible to open horizontally, thereby firmly grasping the reset handle 15 to limit its rotation. After the locking claw 25 moves up from the body countersunk hole 17f, it can open horizontally normally, thereby no longer restricting.

[0061] The lock body 17 can be fixedly connected to the valve body 1 by means of threaded connection or the like. The lower end of the lock body 17 is a hollow structure, in which the lock rod 18 can move up and down. The second end of the lock rod 18 is also a hollow structure, in which the first end of the lock core 19 can move up and down. Figure 4 8 or 9. The inner side of the locking rod 18 is provided with a ball hole 18g for accommodating the steel ball 24. Fig.12 The inner side of the lock body 17 is provided with a body center hole 17c adapted to the steel ball 24, as shown in FIG. Figure 4 Or as shown in 8. The lock core 19 is provided with a core cone surface 19a, as shown in Fig.13 When the ball hole 18g moves to the corresponding position of the body center hole 17c, the lock core 19 is pushed upward, and the core cone surface 19a squeezes the steel ball 24 from the ball hole 18g into the body center hole 17c, as shown in FIG. Figure 4As shown. Since the reset member always maintains an upward force on the lock core 19, the lock core 19 will maintain the state of squeezing the steel ball 24 into the body center hole 17c without the action of other downward forces. Figure 4 As shown, the lock body 17 is fixedly connected to the valve body 1, so that the lock rod 18 cannot move upward. In addition, the reset handle 15 always maintains an upward force on the lock rod 18 through the lock claw 25, and the lock rod 18 cannot move downward, so that the reset holding mechanism is in an alert state (locked state). Only when the seismic steel ball 33 falls on the second end of the manual automatic button 27, and the manual automatic button 27 applies an additional downward force to the lock core 19, the core cone surface 19a moves downward and no longer restricts the steel ball 24, the lock rod 18 is unlocked, and the steel ball 24 is squeezed back into the ball hole 18g under the action of the upward force of the reset handle 15, as shown in FIG. Figure 8 As shown, the locking bar 18 is moved upward.

[0062] The locking rod 18 may have multiple ball holes 18g, such as three ball holes 18g that may be evenly arranged, and the body center hole 17c is adapted thereto, so that the steel ball 24 can be evenly stressed after entering the body center hole 17c.

[0063] The first end of the manual automatic button 27 is fixedly connected to the second end of the lock core 19 through the lock core screw 23. Figure 4 8 or 9. The lock core screw 23 can be threadedly connected to the second end of the lock core 19, or connected in other fixed connection methods. The trigger unlocking mechanism also includes a lock cap 22 sleeved on the second end of the lock core 19; the reset member includes a lock spring 21 sleeved on the lock core screw 23, or / and a reset spring II 20 provided between the lock cap 22 and the lock rod 18. The lock spring 21 and the reset spring II 20 are used to continuously provide upward force to the lock core 19 and the lock rod 18 respectively. The lock cap 22 is fixedly connected to the second end of the lock core 19.

[0064] A return spring IV (28) is provided between the second end of the manual automatic button 27 and the valve body 1. The manual automatic button 27 is always in an upward state under the combined action of the return spring IV 28 and the spring force of the lock spring 21 sleeved on the lock core screw 23. The return spring IV (28) can be directly provided between the second end of the manual automatic button 27 and the valve body 1. Alternatively, a body balance hole 1p is provided at a corresponding position of the valve body 1, and the return spring IV (28) is provided in the body balance hole 1p, such as Fig. 9 shown.

[0065] The manual-automatic button 27 can be arranged in the rectangular groove 1s of the valve body 1 and can slide up and down.

[0066] Working principle:

[0067] This patent mainly includes the alert state and the cut-off state.

[0068] like Figure 1 As shown in Figures 2, 3, or 4, when the reset handle 15 is manually operated counterclockwise, the lower conical surface of the handle lock tongue 15c on the reset handle 15 presses downward against the inner side of the claw arm of the lock claw 25 and continues to press downward, forcing the lock rod 18, the lock core 19, and the steel ball 24 to compress the reset spring II 20 and the lock spring 21 downward. When the steel ball 24 moves downward to the center hole 17c of the body, the lock core 19 slides upward under the upward spring force of the lock spring 21, locking the steel ball 24 between the core conical surface 19a and the lock body 17. At this time, the lock rod 18 is stopped at the lower position and can withstand the upward reset force of the reset spring II 20 and the reset handle 15 and the reset external force. Because when the reset handle 15 is pressed down, the upper conical surface of the handle lock tongue 15c is firmly grasped by the lock hook of the lock claw 25, and the outer side of the claw arm of the lock claw 25 has slid into the body countersunk hole 17f of the lock body 17 to restrict the rotation of the lock claw 25, even if the lock claw 25 is subjected to the horizontal component force generated by the upward force of the upper conical surface of the handle lock tongue 15c, the lock claw 25 cannot release the lock hook of the lock claw 25 from the firmly locked state of the handle lock tongue 15c. At the same time, the reset handle 15 drives the crank shaft 13 to rotate accordingly, and the crank shaft 13 drives the crank 4 to deflect counterclockwise, pushing the connecting rod 3 to perform a linear and swinging composite motion, and the connecting rod 3 causes the connecting rod seat 2, the spring seat 7, the valve stem 8, and the sleeve valve core 10 to perform a linear motion to the left, realizing the reset opening of the emergency cut-off actuator valve, so that the valve is in a warning state (i.e., reset state). At this time, the valve is normally opened.

[0069] like Figure 5 As shown in Figures 6, 7 or 8, when a vibration signal is detected or the ambient temperature is over-temperature, the vibration temperature sensing device supported on the ball support 30 compresses the support spring 31 or the fusible spring adjustment screw 32 under the action of inertia force and melts due to over-temperature, and the vibration sensing steel ball 33 loses support and slides downward, and hits the second end of the manual automatic button 27 in the steel ball cup 36 through the steel ball guide tube 35, so that the manual automatic button 27 moves downward, and the lock core 19 is driven downward by the head of the lock core screw 23. The locked steel ball 24 loses balance under the upward force of the handle lock tongue 15c of the reset handle 15 and is squeezed into the ball hole 18g, and the lock rod 18 slides upward. When the outer side of the claw arm of the lock claw 25 slides out of the body countersunk hole 17f, the claw hook 25d is under the action of the horizontal component of the cone surface on the handle lock tongue 15c, and the lock claw 25 rotates around the center of the pin shaft 26 to release the handle lock tongue 15c, thereby no longer restricting the reset handle 15. The transmission mechanism moves to the right under the spring force of the return spring Ⅰ9, so that the valve is in the cut-off state, and the valve is emergency cut-off.

[0070] The fixed connection not specifically mentioned above may be a connection method such as riveting, welding, bolt connection, etc., and the movable connection may be a connection method such as hinged connection.

Claims

1. A tank front emergency shut-off valve, characterized in that: include An emergency shut-off actuator valve comprises a valve body (1), a transmission mechanism and an elastic member; the transmission mechanism maintains a force for shutting off an oil inlet and outlet (1i) inside the valve body (1) through the elastic member; A vibration temperature sensing device, used for dropping a seismic steel ball (33) when an earthquake or / and fire is sensed; the vibration temperature sensing device comprises a ball support (29), a trigger, a steel ball conduit (35) and a seismic steel ball (33); a stepped screw hole (29b) of the ball support (29) is in communication with the steel ball conduit (35); one end of the trigger is fixedly connected to the ball support (29), and the other end and the ball support (29) are used to support the seismic steel ball (33); the trigger comprises a fusible spring adjustment screw (32), a ball support (30) and a support spring (31); the support spring (31) is arranged between the ball support (30) and the fusible spring adjustment screw (32); A reset holding mechanism comprises a reset handle (15) and a trigger unlocking mechanism; the first end of the reset handle (15) is fixedly connected to the transmission mechanism; the trigger unlocking mechanism comprises a lock claw (25) with a lock hook, a lock body (17), a lock rod (18), a lock core (19), a reset member and a manual automatic button (27); the movable end of the lock claw (25) is used to lock or unlock the second end of the reset handle (15), and the fixed end is fixedly connected to the first end of the lock rod (18); the second end of the lock rod (18) is hollow and is provided in a ball hole (18g) for accommodating a steel ball (24); the first end of the lock core (19) can be moved upward in the lock rod (18). The lock body (17) is fixedly connected to the valve body (1), and the lock rod (18) is able to move up and down in the lock body (17); the lock body (17) is provided with a body countersunk hole (17f) matched with the lock claw (25); the lock body (17) is provided with a body center hole (17c) matched with the steel ball (24); the lock core (19) is provided with a core cone surface (19a); and the reset member is located between the lock core (19) and the manual automatic button (27).

2. The tank front emergency shut-off valve according to claim 1, characterized in that: The second end of the reset handle (15) is provided with a handle lock tongue (15c) with a conical surface, which is matched with the lock hook of the lock claw (25).

3. The tank front emergency shut-off valve according to claim 1, characterized in that: The first end of the manual automatic button (27) is fixedly connected to the second end of the lock core (19) via a lock core screw (23).

4. The tank front emergency shut-off valve according to claim 3, characterized in that: The trigger unlocking mechanism further comprises a lock cap (22) sleeved on the second end of the lock core (19); the reset member comprises a lock spring (21) sleeved on the lock core screw (23), and / or a reset spring II (20) provided between the lock cap (22) and the lock rod (18).

5. The tank front emergency shut-off valve according to claim 3 or 4, characterized in that: A return spring IV (28) is provided between the second end of the manual-automatic button (27) and the valve body (1).

6. The tank front emergency shut-off valve according to claim 1, characterized in that: The vibration temperature sensing device also includes a protective cover (34).

7. The tank front emergency shut-off valve according to claim 1, characterized in that: A steel ball cup (36) for receiving a seismic steel ball (33) is provided at the second end of the manual automatic button (27).

8. The tank front emergency shut-off valve according to claim 1, characterized in that: The crank shaft (13) of the transmission mechanism is capable of rotating in the valve body (1); the first end of the crank shaft (13) is fixedly connected to the first end of the reset handle (15), and the second end is fixedly connected to the sleeve valve core (10) via the crank (4), the connecting rod (3), the connecting rod seat (2), and the valve stem (8); the valve body (1) is provided with an inner shell (1b) with a spring seat (7), and the spring seat (7) is capable of sliding in the inner shell (1b); a reset spring I (9) is provided between the spring seat (7) and the inner shell (1b).

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