CN113460519A - Safety indicating device and vehicle suitable for pneumatic powder tank container - Google Patents
Safety indicating device and vehicle suitable for pneumatic powder tank container Download PDFInfo
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- CN113460519A CN113460519A CN202110712670.6A CN202110712670A CN113460519A CN 113460519 A CN113460519 A CN 113460519A CN 202110712670 A CN202110712670 A CN 202110712670A CN 113460519 A CN113460519 A CN 113460519A
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- hole
- plate
- air
- bearing plate
- air duct
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
- B65D90/48—Arrangements of indicating or measuring devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/22—Tank vehicles
- B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
Abstract
The invention discloses a safety indicating device and a vehicle suitable for a pneumatic powder tank container, relating to the field of container accessories, wherein the safety indicating device is arranged on a hole cover of the container, and an assembling hole is arranged on the hole cover, and the safety indicating device comprises: the air duct penetrates through the assembly hole, the bottom of the air duct extends into the container, the air duct is sleeved with the sealing seat plate, and a clamping groove is formed between the air duct and the sealing seat plate; the top of the sealing ring is embedded in the clamping groove; the indicating rod penetrates through the air guide tube, one end of the indicating rod is connected with the bearing plate, the bearing plate is arranged below the air guide tube, and the other end of the indicating rod extends to the outside of the air guide tube and is provided with a limiting end head; one end of the protective cover is connected with the hole cover, the other end of the protective cover is matched with the top of the air guide tube and is provided with a guide hole, the middle part of the indicating rod penetrates through the guide hole, and the hole wall of the guide hole is interfered with the limiting end head; the distance through protection casing and spacing end shows the jar internal pressure condition to strengthen its safety risk warning nature, thereby guarantee the reliability that the tank box used.
Description
Technical Field
The invention belongs to the field of container accessories, and particularly relates to a safety indicating device suitable for a pneumatic powder tank container and a vehicle.
Background
At present, as the technology of containers and related spare parts is rapidly developed, the types and kinds of containers are greatly increased, and the development of tank containers is more representative of various types of special containers, which are widely applied to the transportation field of gas, liquid, solid powder and the like.
The powder tank container is mainly used for transporting solid particulate goods such as alumina powder, cement, fly ash and the like. It is common to fill the container with cargo through a filling opening at the top of the tank and discharge the cargo after it has been "fluidized" by compressed air. Because the compressed air is used, the tank body still has the situation of residual pressure after the tank body is used up, if an operator forgets to discharge residual air, the tank body is recovered to the normal pressure state, and then the subsequent operation of uncovering and feeding the tank body has the situation that the safety of the operator is influenced by the overflowing of air flow or the sudden bouncing of the cover body and the like. In addition, many powder tank containers are not allowed to operate under pressure according to relevant national regulations.
Disclosure of Invention
The invention aims to provide a safety indicating device suitable for a gas-discharging powder tank container and a vehicle, aiming at the defects in the prior art, wherein an indicating rod is additionally arranged in an assembling hole on a hole cover, gas in the tank can apply pressure to a bearing plate through a vortex effect, and the pressure condition in the tank is displayed through the distance between a protective cover and a limiting end head so as to enhance the safety risk warning performance of the tank and ensure the use reliability of the tank.
In order to achieve the above object, the present invention provides a safety indicator for a pneumatic powder tank container, the safety indicator being disposed on a cap of the container, the cap having an assembly hole, the safety indicator comprising:
the middle part of the air duct penetrates through the assembling hole, the bottom of the air duct extends into the container, a sealing seat plate is sleeved on the periphery of the bottom of the air duct, and a clamping groove is formed between the bottom of the air duct and the sealing seat plate;
the top of the sealing ring is embedded in the clamping groove;
the indicating rod penetrates through the air guide tube, one end of the indicating rod is connected with the bearing plate, the bearing plate is arranged below the air guide tube, the other end of the indicating rod extends to the outside of the air guide tube, and the other end of the indicating rod is provided with a limiting end head;
one end of the protective cover is connected with the hole cover, the other end of the protective cover is matched with the top of the air guide tube, a guide hole is formed in the other end of the protective cover, the middle of the indicating rod penetrates through the guide hole, and the hole wall of the guide hole is interfered with the limiting end head.
Optionally, the top of the cross section of the hole cover is arc-shaped, the assembling hole is formed in one side of the rotation axis of the hole cover, and one end of the protective cover is connected with the middle of the hole cover.
Optionally, the sealing seat plate is annular, the top end of the sealing seat plate is connected with the outer wall of the air duct through a connecting plate, and the sealing seat plate, the connecting plate and the outer wall of the air duct are connected to form the clamping groove.
Optionally, the sealing seat plate, the connecting plate and the outer wall of the air duct are connected by welding.
Optionally, the bottom of the sealing ring protrudes out of the clamping groove.
Optionally, a gap exists between the limiting end head and the upper surface of the other end of the protective cover.
Optionally, the bearing plate is basin-shaped, a plurality of first via holes are formed in the connecting position of the side wall and the bottom wall of the bearing plate along the circumferential direction, one end of the bottom of the sealing ring is matched with the bottom wall of the bearing plate, a second via hole is formed in the middle of the bottom wall of the bearing plate, and the outer side of the side wall of one end of the indicating rod is connected with the inner side of the hole wall of the second via hole.
Optionally, the protective cover includes a plate-shaped portion and a cylindrical portion, one end of the plate-shaped portion is connected to one end of the cylindrical portion, the other end of the plate-shaped portion is connected to the upper surface of the hole cover, the cylindrical portion is provided with a bottom plate, and the bottom plate is provided with the guide hole.
The invention also provides a vehicle comprising the safety indicating device suitable for the pneumatic powder tank container.
The invention provides a safety indicating device and a vehicle suitable for a pneumatic powder tank container, which have the beneficial effects that:
1. the safety indicating device is additionally arranged on the to-be-opened hole cover of the tank container, and the pressure condition in the tank can be conveniently fed back to an operator through the distance between the protective cover and the limiting end head, so that the operator can be warned to pay attention to necessary safety and prevent accidents;
2. this safety indicating device structure is small and exquisite relatively, does not influence almost and load the volume and adopt current ripe part can realize, simple structure, low in manufacturing cost are honest and clean, change the convenience, can embody its comprehensive benefit like this greatly, and this safety indicating device provides a new solution thinking for solid-state powder tank container further promotes the safety guarantee performance.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a schematic configuration of a security indicator apparatus for an air-unloaded powder tank container according to an embodiment of the present invention.
Fig. 2 shows a top view of fig. 1.
Fig. 3 shows a partial cross-sectional view of the attachment location of the force-bearing plate and the seal ring according to one embodiment of the invention.
FIG. 4 is a schematic view showing the attachment position of the airway tube and the seal seat plate according to one embodiment of the present invention.
Fig. 5 shows a top view of fig. 4.
Fig. 6 shows a structural diagram of the connection position of the bearing plate and the sealing ring according to one embodiment of the invention.
Fig. 7 shows a top view of fig. 6.
Fig. 8 shows a schematic structural view of a protective cover according to an embodiment of the invention.
Fig. 9 shows a top view of fig. 8.
Description of reference numerals:
1. an air duct; 2. sealing the seat plate; 3. a card slot; 4. a seal ring; 5. an indication lever; 6. a bearing plate; 7. a protective cover; 8. an orifice cover; 9. a guide hole; 10. a limiting end; 11. a first via hole; 12. a second via hole; 13. a plate-like portion; 14. a cylindrical portion; 15. a base plate.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The invention provides a safety indicating device suitable for a pneumatic powder discharging tank container, which is arranged on a hole cover of the container, wherein an assembling hole is arranged on the hole cover, and the safety indicating device comprises:
the middle part of the air duct penetrates through the assembling hole, the bottom of the air duct extends into the container, a sealing seat plate is sleeved on the periphery of the bottom of the air duct, and a clamping groove is formed between the bottom of the air duct and the sealing seat plate;
the top of the sealing ring is embedded in the clamping groove;
the indicating rod penetrates through the air guide tube, one end of the indicating rod is connected with the bearing plate, the bearing plate is arranged below the air guide tube, the other end of the indicating rod extends to the outside of the air guide tube, and the other end of the indicating rod is provided with a limiting end head;
the protection casing, one end is connected with the handhole door, and the other end of protection casing cooperatees with the top of air duct, and the guiding hole has been seted up to the other end of protection casing, and the guiding hole is run through at the middle part of pilot lever, and the pore wall and the spacing end of guiding hole interfere.
Specifically, the safety indicating device is arranged in the assembling hole, the air guide pipe is attached to the assembling hole, the indicating rod is movably arranged in the air guide pipe, when gas enters the air guide pipe through the space between the sealing ring and the bearing plate, the protective cover and the hole cover are fixed mutually, and the protective cover can be directly placed above the air guide pipe to connect the protective cover and the bearing plate, so that when the gas is contacted with the protective cover, the gas can be discharged from a gap in the circumferential direction of the protective cover and the air guide pipe, the gas flowing speed is accelerated, the vortex effect is more obvious, the bearing plate moves upwards along with the bearing plate under the pressure of the gas, the bearing plate drives the indicating rod to move upwards, the limiting end head and the upper surface of the protective cover are in a disconnecting state, and at the moment, the safety indicating device displays that the gas pressure exists on one side of the bearing plate, and reminds an operator of exhausting; when the limiting end head is in a fit state with the upper surface of the protective cover, it is displayed that one side of the bearing plate is not subjected to gas pressure, and normal operation can be performed; the limiting end can display whether gas exists inside through the gap distance between the limiting end and the protective cover, and in addition, when the bearing plate moves downwards only under the action of gravity, the limiting end moves downwards along with the bearing plate, the hole wall of the guide hole can carry out limiting interference on the limiting end, so that the situation that the indicating rod is completely separated from the protective cover and cannot play a role of safety indication is avoided; the periphery of the bottom of the gas guide pipe is provided with a sealing seat plate, a clamping groove is formed between the two parts, the top of the sealing ring extends into the clamping groove, the clamping groove is in sealing lap joint with the sealing ring under the action of gravity, when gas enters from the gas guide pipe, the gas can only enter from the space between the sealing ring and the bearing plate, so that the gas flows smoothly, and a vortex effect is easy to generate; the protection casing and handhole door do not adopt the welding mode as far as possible to be connected to unable dismantlement when preventing later stage maintenance change part.
In one embodiment, the protective cover and the air guide pipe are in threaded connection, so that the protective cover and the air guide pipe are not connected and can not fall off, the protective cover does not need to be connected with the hole cover, a certain gap is reserved between the protective cover and the limiting end head after the protective cover and the air guide pipe are screwed in place, and the threads of the protective cover are provided with the ventilation guide grooves, so that air can be normally discharged from the ventilation guide grooves; the hole cover can be a manhole cover or a charging cover, and the safety indicating device is arranged on the hole cover, so that the condition that whether the bearing plate is subjected to the pressure of gas or not can not be known by an operator in normal operation, and serious consequences can be caused.
Optionally, the top of the cross section of the hole cover is arc-shaped, the assembling hole is formed in one side of the rotation axis of the hole cover, and one end of the protective cover is connected with the middle of the hole cover.
The top of handhole door is arc, and the equipment hole is seted up in the one side that is close to the handhole door edge, and the one end of protection casing and handhole door hookup location are close to one side of the centre of a circle, and the overlap joint department of air duct and protection casing just in time is in the edge of handhole door, and the position relation of the other end of observing spacing end and protection casing that operating personnel can relax like this feeds back the pressure condition of load board one side to operating personnel, warns it and notices necessary security, places and the emergence accident. Optionally, the sealing seat plate is annular, the top end of the sealing seat plate is connected with the outer wall of the air duct through a connecting plate, and the sealing seat plate, the connecting plate and the outer wall of the air duct are connected to form a clamping groove.
Specifically, connect through the connecting plate between the top of sealed seat and the outer wall of air duct, form opening draw-in groove down, the top and the connecting plate of sealing washer lean on, guarantee the leakproofness between sealing washer and the air duct, when there is gas entering air duct in load board one side, gas can only get into the air duct through the gap between sealing washer and the load board.
Optionally, the sealing seat plate, the connecting plate and the outer wall of the air duct are connected by welding.
The air guide pipe is characterized in that three parts are connected through welding, the tightness of the clamping groove is guaranteed, the connection strength of the bottom of the air guide pipe is improved, when the bearing plate is subjected to the upward movement of gas pressure, the bearing plate drives the indicating rod to move upwards more obviously, the trend of the upward movement of the bearing plate can be buffered through the clamping groove and the sealing ring, the limiting end head and the protective cover are in a disengagement state, and the warning is given to an operator.
Optionally, the bottom of the sealing ring protrudes out of the clamping groove.
Specifically, the bottom of sealing washer is protruding downwards for the draw-in groove, and the bottom and the bearing board of sealing washer counterbalance are leaned on, and when the bearing board received gas pressure, because the bottom of sealing washer is supporting the bearing board, make the bottom of bearing board and air duct support each other and lean on, the bearing board drives the motion of indicator lever upwards, and air duct and protection casing position remain unchanged, through the disengagement state between the spacing end of indicator lever upper end and the up end of protection casing, judges whether bearing board one side has gas.
Optionally, a gap exists between the limiting end head and the upper surface of the other end of the protective cover.
Specifically, when the bearing plate receives gas pressure, when the bearing plate leaned on with the bottom of sealing washer, the bearing plate drove the pilot lever upward movement, because the existence of sealing washer, the bottom and the bearing plate contactless of air duct, the top and the protection casing contact of air duct, there was the clearance in the spacing end downside on pilot lever top and the upper surface of protection casing and had certain clearance, was convenient for like this judge whether bearing plate one side received gas pressure and acted on.
Optionally, the bearing plate is basin-shaped, a plurality of first via holes are formed in the connecting position of the side wall of the bearing plate and the bottom wall of the bearing plate along the circumferential direction, one end of the bottom of the sealing ring is matched with the bottom wall of the bearing plate, a second via hole is formed in the middle of the bottom wall of the bearing plate, and the outer side of the side wall of one end of the indicating rod is connected with the inner side of the hole wall of the second via hole.
Specifically, the bearing plate is basin-shaped, a plurality of first through holes are uniformly formed in the joint of the side wall and the bottom wall along the circumferential direction, so that gas easily forms a vortex effect at the bearing plate, the upper region of the basin-shaped structure can be prevented from being accumulated with powder goods due to the basin-shaped structure shape of the bearing plate, in addition, the communication between the upper region and the lower region of the bearing plate can be enhanced through the plurality of first through holes, the temporary pressure difference (back pressure) influence formed in the upper region and the lower region of the bearing plate is avoided, the bearing plate moves upwards, gas can enter from the periphery of the bearing plate and can enter the bearing plate through the plurality of first through holes, the situation that the gas can only enter the gas guide tube from the periphery of the bearing plate is avoided, the problem that the gas is not exhausted, the problem that the pressure difference between the two sides of the bearing plate causes the upward movement is avoided; the indicating rod and the bearing plate are connected in an interference fit mode, when the indicating rod and the bearing plate are assembled, the indicating rod is pressed into the second through hole through operation, the installation is simple and convenient, the sealing property and the firmness between the bearing plate and the indicating rod are ensured, gas cannot enter the gas guide pipe through a gap between the indicating rod and the hole wall of the second through hole, and the effective acting areas of the upper surface and the lower surface of the bearing plate are considered to prevent the formation of overlarge back pressure and influence the realization of the ascending and descending movement of the indicating rod, a second through hole is arranged at the joint of the indicating rod and the bearing plate, so that the weight of the bearing plate is reduced, the stress area of the bearing plate is not reduced, the bearing plate moves more obviously when receiving gas pressure, the safety indicating device can more accurately reflect the gas pressure condition on one side of the bearing plate, and the safety risk warning effect is enhanced.
In one embodiment, the indicating rod is in threaded connection with the second through hole, so that the indicating rod is convenient to disassemble and assemble, and the thread is wound with the raw material belt or the sealing ring is added, so that the air tightness of the joint is improved, and gas is prevented from flowing into the gas guide pipe from a gap between the indicating rod and the second through hole.
Optionally, the protective cover comprises a plate-shaped part and a cylindrical part, one end of the plate-shaped part is connected with one end of the cylindrical part, the other end of the plate-shaped part is connected with the upper surface of the hole cover, the cylindrical part is provided with a bottom plate, and the bottom plate is provided with a guide hole.
Specifically, the protective cover comprises a plate-shaped part and a cylindrical part, the protective cover is in an inverted spoon shape, the plate-shaped part is fixedly connected with the hole cover, and the cylindrical part is buckled at the top of the air guide tube to prevent rain and snow from entering the air guide tube; the plate-shaped part is fixedly connected with the hole cover, so that the position relation between the protective cover and the air guide pipe is kept unchanged, and when the bearing plate is influenced by gas pressure, whether gas exists on one side of the bearing plate is judged through the opening and closing state between the limiting end head and the cylindrical part.
The invention also provides a vehicle comprising the safety indicating device suitable for the pneumatic powder tank container.
Specifically, the safety indicating device is arranged on an assembling hole, an indicating rod penetrates through the assembling hole, a bearing plate is arranged on one side in a tank, the pressure in the tank is sensed through the bearing plate, when gas is filled in the tank, the gas enters an air guide pipe through a gap between a sealing ring and the bearing plate and is discharged through a gap between a protective cover and the air guide pipe, the vortex effect is obvious along with the continuous rising of the pressure in the tank, the bearing plate is subjected to the pressure of the gas to drive the indicating rod to move upwards, the relative position of a limiting end head and the protective cover is in a disconnecting state to remind that residual pressure exists in the tank, the residual pressure in the tank must be discharged before an operator punches a manhole cover, and the gas in the tank is completely discharged when the limiting end head is attached to the protective cover so that the manhole cover can be opened; when the external pressure is greater than the internal pressure of the tank, the internal pressure of the tank can be balanced through the gap between the protective cover and the air duct.
Examples
As shown in fig. 1 to 9, the present invention provides a safety indicator for a pneumatic powder tank container, which is provided on a cap 8 of the container, the cap 8 being provided with an assembly hole, the safety indicator comprising:
the middle part of the air duct 1 penetrates through the assembly hole, the bottom of the air duct 1 extends into the container, a sealing seat plate 2 is sleeved on the periphery of the bottom of the air duct 1, and a clamping groove 3 is formed between the bottom of the air duct 1 and the sealing seat plate 2;
the top of the sealing ring 4 is embedded in the clamping groove 3;
the indicating rod 5 penetrates through the air guide tube 1, one end of the indicating rod 5 is connected with the force bearing plate 6, the force bearing plate 6 is arranged below the air guide tube 1, the other end of the indicating rod 5 extends to the outside of the air guide tube 1, and the other end of the indicating rod 5 is provided with a limiting end head 10;
the protection casing 7, one end is connected with handhole door 8, and the other end of protection casing 7 cooperatees with the top of air duct 1, and guiding hole 9 has been seted up to the other end of protection casing 7, and guiding hole 9 is run through at the middle part of instruction pole 5, and the pore wall and the spacing end 10 of guiding hole 9 interfere.
In this embodiment, the top of the cross section of the hole cover 8 is circular arc, the assembling hole is opened at one side of the rotation axis of the hole cover 8, and one end of the protection cover 7 is connected with the middle part of the hole cover 8.
In this embodiment, sealed seat 2 is cyclic annular, and sealed seat 2 top is connected with the outer wall of air duct 1 through the connecting plate, and the outer wall connection of sealed seat 2, connecting plate and air duct 1 forms draw-in groove 3.
In this embodiment, the sealing seat plate 2, the connecting plate and the outer wall of the air duct 1 are connected by welding.
In this embodiment, the bottom of the sealing ring 4 protrudes out of the slot 3.
In this embodiment, a gap exists between the limit tip 10 and the upper surface of the other end of the protection cover 7.
In this embodiment, bearing plate 6 is the basin form, and the linking department of the lateral wall of bearing plate 6 and diapire is provided with a plurality of first via holes 11 along circumference, and the bottom one end of sealing washer 4 cooperatees with the diapire of bearing plate 6, and second via hole 12 has been seted up between two parties to the diapire of bearing plate 6, and the one end lateral wall outside of indicator lever 5 is connected with the pore wall inboard of second via hole 12.
In this embodiment, the protection cover 7 includes a plate-shaped portion 13 and a cylindrical portion 14, one end of the plate-shaped portion 13 is connected to one end of the cylindrical portion 14, the other end of the plate-shaped portion 13 is connected to the upper surface of the hole cover 8, the cylindrical portion 14 is provided with a bottom plate 15, and the bottom plate 15 is provided with the guide hole 9.
The invention also provides a vehicle comprising the safety indicating device suitable for the pneumatic powder tank container.
In conclusion, when the gas-discharging powder tank container is filled with gas, the pressure of the gas in the tank rises, and the gas enters the gas guide pipe 1 from the gap between the bearing plate 6 and the sealing ring 4 at the hole cover 8 and is discharged from the gap between the protective cover 7 and the upper part of the gas guide pipe 1; along with the continuous rising of the pressure in the tank, the vortex effect is more obvious, the lower side of the bearing plate 6 drives the indicating rod 5 to move upwards under the action of the upward pressure of the gas until the bearing plate 6 completely compresses the sealing ring 4, and the upper part of the indicating rod 5 is completely changed from a joint state to a separation state with the upper surface of the cylindrical part 14, so that the residual pressure in the tank can be shown, and the residual pressure in the tank needs to be discharged before an operator opens the hole cover 8; if the upper part of the indication rod 5 is attached to the upper surface of the cylindrical part 14, it indicates that there is no residual pressure in the tank and the operator can open the tank normally.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (9)
1. A safety indicating device suitable for pneumatic unloading powder tank container, the safety indicating device sets up on the handhole door of container, be provided with the equipment hole on the handhole door, its characterized in that includes:
the middle part of the air duct penetrates through the assembling hole, the bottom of the air duct extends into the container, a sealing seat plate is sleeved on the periphery of the bottom of the air duct, and a clamping groove is formed between the bottom of the air duct and the sealing seat plate;
the top of the sealing ring is embedded in the clamping groove;
the indicating rod penetrates through the air guide tube, one end of the indicating rod is connected with the bearing plate, the bearing plate is arranged below the air guide tube, the other end of the indicating rod extends to the outside of the air guide tube, and the other end of the indicating rod is provided with a limiting end head;
one end of the protective cover is connected with the hole cover, the other end of the protective cover is matched with the top of the air guide tube, a guide hole is formed in the other end of the protective cover, the middle of the indicating rod penetrates through the guide hole, and the hole wall of the guide hole is interfered with the limiting end head.
2. The safety indicator for an airlaid powder tank container as claimed in claim 1, wherein the sectional top of the hole cover is circular, the assembly hole is formed at one side of the rotation axis of the hole cover, and one end of the shield is connected to the middle of the hole cover.
3. The safety indicator device for air-unloaded powder tank container as claimed in claim 1, wherein the sealing seat is ring-shaped, the top end of the sealing seat is connected with the outer wall of the air duct through a connecting plate, and the sealing seat, the connecting plate and the outer wall of the air duct are connected to form the clamping groove.
4. A safety indicator device adapted for use in an air-unloaded powder tank container as claimed in claim 3, wherein said seal seat plate, said connecting plate and said outer wall of said air duct are welded together.
5. The security indicator apparatus for air discharging powder tank container as claimed in claim 1, wherein the bottom of the packing is protruded outside the catching groove.
6. A safety indicator device adapted for use with an air-unloaded powder tank container as claimed in claim 1, wherein a clearance exists between the restraining head and the other end upper surface of the protection cover.
7. The safety indicator for the air-unloaded powder tank container as claimed in claim 1, wherein the force bearing plate is basin-shaped, a plurality of first through holes are circumferentially formed at the joint of the side wall and the bottom wall of the force bearing plate, one end of the bottom of the sealing ring is matched with the bottom wall of the force bearing plate, a second through hole is centrally formed in the bottom wall of the force bearing plate, and the outer side of the side wall at one end of the indicator rod is connected with the inner side of the hole wall of the second through hole.
8. The safety indicator for an airlaid powder can container according to claim 1, wherein said shield comprises a plate-shaped portion and a cylindrical portion, one end of said plate-shaped portion is connected to one end of said cylindrical portion, the other end of said plate-shaped portion is connected to the upper surface of said hole cover, said cylindrical portion is provided with a bottom plate, and said guide hole is provided in said bottom plate.
9. A vehicle comprising a security indicator device adapted for use with an air-unloaded powder tank container according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110712670.6A CN113460519B (en) | 2021-06-25 | 2021-06-25 | Safety indicating device and vehicle suitable for pneumatic powder tank container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110712670.6A CN113460519B (en) | 2021-06-25 | 2021-06-25 | Safety indicating device and vehicle suitable for pneumatic powder tank container |
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| Publication Number | Publication Date |
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| CN113460519A true CN113460519A (en) | 2021-10-01 |
| CN113460519B CN113460519B (en) | 2022-08-23 |
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| CN202110712670.6A Active CN113460519B (en) | 2021-06-25 | 2021-06-25 | Safety indicating device and vehicle suitable for pneumatic powder tank container |
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| CN113460519B (en) | 2022-08-23 |
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