CN210619123U

CN210619123U - Anti-leakage emergency cut-off valve for hazardous chemical normal-pressure tank truck

Info

Publication number: CN210619123U
Application number: CN201921747919.1U
Authority: CN
Inventors: 孔令周
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-17
Filing date: 2019-10-17
Publication date: 2020-05-26
Anticipated expiration: 2029-10-17

Abstract

The utility model discloses a leakage-proof emergency cut-off valve for a hazardous chemical normal-pressure tank car, which is arranged at a discharge port of a tank body of a hazardous chemical storage tank and comprises an external valve, an internal valve and a driving device, wherein the external valve is arranged at the outer side of the tank body corresponding to the discharge port, and the internal valve is arranged at the inner side of the tank body corresponding to the discharge port; the built-in valve comprises an inner frame body with a supporting part, an inner flashboard arranged in the inner frame body and used for sealing and covering the discharge hole, and a first elastic piece connected between the inner flashboard and the supporting part in a butting mode, wherein a through hole is formed in the inner frame body; the driving device is connected with the inner flashboard to drive the inner flashboard to be far away from or close to the discharge hole, so that the discharge hole is opened or closed. The utility model discloses simple structure, when taking place the traffic accident and lead to external valve to damage or drop, the interior flashboard of built-in valve can the closing cap discharge gate under the effect of first elastic component, can effectually avoid taking place to leak, has improved the safety in utilization.

Description

Anti-leakage emergency cut-off valve for hazardous chemical normal-pressure tank truck

Technical Field

The utility model particularly relates to a danger article ordinary pressure tank car prevents leaking emergency cut-off valve.

Background

The medium of dangerization article storage jar storage is mostly for having gas or the liquid of dangerous characteristic such as inflammable, explosive, and this dangerization article storage jar takes place to leak in transportation or storage process and can cause very big harm to giving people's life and property safety and all ring edge borders, causes the main reason that dangerization article storage jar takes place to leak to lie in: the existing emergency cut-off valve is mostly of an integrated structure, the emergency cut-off valve is easily damaged or a locking screw is broken and falls off when a traffic accident happens to a tank car, so that a valve body fails, and therefore leakage of media in a tank body is caused.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome defect among the above-mentioned prior art, provide an emergency cut-off valve of danger article storage jar, it is when taking place the traffic accident and lead to external valve to damage or drop, and the interior flashboard of built-in valve can be with the discharge gate closing cap under the effect of first elastic component to effectively avoid a jar body to take place to leak.

In order to achieve the purpose, the utility model provides an emergency cut-off valve for a hazardous chemical storage tank, which is arranged at a discharge port of a tank body of the hazardous chemical storage tank, and comprises an external valve, an internal valve and a driving device, wherein the external valve is arranged at the outer side of the tank body corresponding to the discharge port, and the internal valve is arranged at the inner side of the tank body corresponding to the discharge port;

the built-in valve comprises an inner frame body with a supporting part, an inner flashboard arranged in the inner frame body and used for sealing and covering the discharge hole, and a first elastic piece connected between the inner flashboard and the supporting part in a butting mode, wherein a through hole is formed in the inner frame body;

the driving device is connected with the inner flashboard to drive the inner flashboard to be far away from or close to the discharge hole, so that the discharge hole is opened or closed.

Further setting the following steps: the external valve comprises an outer shell with a discharge channel and an outer gate plate for sealing an inlet of the discharge channel, wherein the outer gate plate is positioned outside the inlet of the discharge channel, and the plate diameter of the outer gate plate is smaller than the caliber of the discharge port;

the driving device is connected with the outer flashboard to control the outer flashboard to be far away from or close to the opening of the outer shell body, so that the opening or closing of the opening of the outer shell body is realized.

Further setting the following steps: and a second elastic piece is connected between the outer flashboard and the inner flashboard in an abutting mode.

Further setting the following steps: still include the ring flange, this ring flange welding is in the discharge gate department of jar body, and this shell body is connected with the ring flange through the retaining member, and the preceding tip of this inner frame body passes the flange of discharge gate and ring flange and welds mutually.

Further setting the following steps: the supporting part is connected with the inner frame body in a rotating clamping matching mode.

Further setting the following steps: the driving device is of a cylinder structure or a hydraulic cylinder structure.

Compared with the prior art, the utility model has simple structure, the driving device can control the movement of the inner flashboard of the built-in valve and the outer flashboard of the external valve to realize the opening or closing of the discharge port, and the discharge channel is sealed by the matching of the outer flashboard and the inner flashboard, so that the sealing effect is better; simultaneously built-in valve and external valve are the components of a whole that can function independently and set up in the inside and outside of jar body, and when the locking screw fracture that takes place the traffic accident and lead to external valve to damage or be used for connecting external valve leads to droing, built-in valve can normal use and carry out the closing cap to the discharge gate under the effect of first elastic component, avoids jar body emergence to leak.

Drawings

Fig. 1 is a schematic perspective view of a leakproof emergency cut-off valve of a hazardous chemical normal-pressure tank car of the present invention;

FIG. 2 is a schematic view of a disconnect configuration of the slam shut valve;

fig. 3 is an axial sectional structural schematic diagram of the quick action emergency valve.

The following reference numerals are marked thereon in conjunction with the accompanying drawings:

1. a built-in valve; 11. an inner frame body; 111. a via hole; 12. a support portion; 13. an inner gate plate; 14. a first elastic member; 2. an external valve; 21. an outer housing; 22. an outer gate plate; 23. a second elastic member; 3. a flange plate; 4. a drive device; 41. a drive rod; 5. a tank body; 6. a transmission assembly; 61. a rocker arm; 62. a rotating rod; 63. a first transmission member; 64. a second transmission member.

Detailed Description

In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

The utility model relates to a danger article ordinary pressure tank car prevents leaking emergency cut-off valve is as shown in fig. 1, fig. 2 and fig. 3, this emergency cut-off valve is installed in the discharge gate department of bottom under the jar body 5 rear ends of danger article storage jar, including built-in valve 1, external valve 2 and drive arrangement 4, this built-in valve 1 is installed and is corresponded discharge gate department in the inboard of jar body 5, this external valve 2 is installed and is corresponded discharge gate department in the outside of jar body 5, this drive arrangement 4 and built-in valve 1's interior flashboard 13, and external valve 2's outer flashboard 22 links to each other and moves with flashboard 13 and outer flashboard 22 in controlling, realizes opening or closing of discharge gate.

As shown in fig. 2 and 3, the quick action emergency valve further includes a flange 3, the flange 3 is of an annular structure and is correspondingly welded at a corresponding discharge port of the tank 5, and a flange of the flange 3 is embedded in the discharge port of the tank 5; the end part of the outer shell 21 of the external valve 2 is fixedly connected with the flange 3 through a locking piece, and the front end part of the internal valve 1 penetrates through the discharge hole to be welded with the flange of the flange 3.

As shown in fig. 2 and 3, the built-in valve 1 includes an inner frame body 11 having a rear end support portion 12, an inner gate 13 disposed in the inner frame body 11, and a first elastic member 14 connected between the support portion 12 and the inner gate 13 in an abutting manner, and under the action of the first elastic member 14, the inner gate 13 always has a tendency to move toward the discharge hole to cover the discharge hole; the driving device 4 is connected with the inner gate plate 13 to drive the inner gate plate 13 to be far away from or close to the discharge hole, so that the discharge hole is opened or closed; be formed with via hole 111 on this inner support body 11, when interior flashboard 13 was in the open position, the medium in the jar body 5 got into inner support body 11 in through via hole 111 and got into external valve 2 from the discharge gate and discharged.

As shown in fig. 2 and 3, the external valve 2 includes an outer casing 21 and an outer shutter 22, the outer casing 21 is a tubular structure having a discharge passage, the outer shutter 22 is located outside an inlet of the outer casing 21 and connected to the driving device 4, and can be far away from or close to the inlet of the outer casing 21 under the driving of the driving device 4 to open or close the discharge passage; preferably, the inner gate 13 is connected with the outer gate 22 to realize linkage; the driving device 4 is a cylinder structure or a hydraulic cylinder, the driving device 4 is mounted on the external valve 2, the driving rod 41 of the driving device 4 is connected with the external gate 22 through a transmission assembly 6, the transmission assembly 6 comprises a rocker arm 61, a rotating rod 62, a first transmission member 63 and a second transmission member 64, one end of the rocker arm 61 is connected with the driving rod 41 of the driving device 4, the other end of the rocker arm 61 and the first transmission member 63 are fixedly connected to two ends of the rotating rod 62 respectively, one end of the second transmission member 64 is hinged to the first transmission member 63, and the other end of the second transmission member 64 is connected with the external gate 22; the driving device 4 pushes the rocker arm 61 to rotate the rotating rod 62, which is linked with the rotation of the first transmission member 63, and the second transmission member 64 acts on the outer shutter plate 22 to move the outer shutter plate 22.

In the above solution, preferably, a second elastic member 23 is connected between the outer shutter 22 and the inner shutter 13 in an abutting manner.

Preferably, the supporting portion 12 and the inner frame 11 are connected in a rotating clamping fit manner, so that the supporting portion 12, the inner gate 13 and the outer gate 22 can be conveniently detached, and maintenance and replacement are facilitated.

The above disclosure is only for the embodiment of the present invention, however, the present invention is not limited thereto, and any changes that can be considered by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A leakage-proof emergency cut-off valve of a hazardous chemical normal-pressure tank car is arranged at a discharge port of a tank body of a hazardous chemical storage tank and is characterized by comprising an external valve, an internal valve and a driving device, wherein the external valve is arranged at the outer side of the tank body corresponding to the discharge port, and the internal valve is arranged at the inner side of the tank body corresponding to the discharge port;

2. The leakage-proof emergency cut-off valve for the hazardous chemical normal-pressure tank car as claimed in claim 1, wherein the external valve comprises an outer shell with a discharge channel, and an outer gate plate for covering an inlet of the discharge channel, the outer gate plate is located outside the inlet of the discharge channel, and the plate diameter of the outer gate plate is smaller than that of the discharge port;

3. The leakage-proof emergency cut-off valve for the hazardous chemical normal-pressure tank car as claimed in claim 2, wherein a second elastic member is connected between the outer gate plate and the inner gate plate in an interference manner.

4. The leakage-proof emergency cut-off valve for the hazardous chemical normal-pressure tank car as claimed in claim 1, further comprising a flange welded at the discharge port of the tank body, the outer casing is connected with the flange through a locking member, and the front end of the inner frame body penetrates through the discharge port and is welded with a flange on the flange.

5. The leakage-proof emergency cut-off valve for the hazardous chemical substance normal-pressure tank car according to claim 1, wherein the supporting part is connected with the inner frame body in a rotating clamping fit manner.

6. The leakage-proof emergency cut-off valve for the hazardous chemical normal-pressure tank car as claimed in claim 1, wherein the driving device is a cylinder structure or a hydraulic cylinder structure.