CN211894528U

CN211894528U - Manhole of highway tank car

Info

Publication number: CN211894528U
Application number: CN202020455931.1U
Authority: CN
Inventors: 李传赞; 吴海涛
Original assignee: Hebei Guangde Fluid Control Ltd
Current assignee: Hebei Guangde Fluid Control Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-11-10
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to the technical field of accessories of highway tank cars, in particular to a manhole of a highway tank car; the anti-explosion neck collar is convenient to open, improves the use reliability, has an anti-explosion function, improves the safety, and comprises a neck collar, a connecting cover and a plurality of fastening bolt components, wherein the connecting cover is arranged on the neck collar through the plurality of fastening bolt components; still include the explosion-proof cover, the crossbeam, apron and stop device, the top intercommunication of connecting the lid is provided with the go-between, the explosion-proof cover lid is adorned on the go-between, the top left side of connecting the lid is provided with the coupling hook, the right-hand member of crossbeam is articulated with the top right side of connecting the lid, the left end of apron is articulated with the left end of crossbeam, the right-hand member and the crossbeam of apron pass through stop device and are connected, the left end of apron is provided with and connects hook complex coupling assembling, the bottom of explosion-proof cover is provided with multiunit pressure spring, multiunit pressure spring's bottom all pastes tightly with the top of explosion-proof cover, stop device's.

Description

Manhole of highway tank car

Technical Field

The utility model relates to a highway tank car auxiliary device's technical field especially relates to a highway tank car manhole.

Background

The manhole of the tank car is an auxiliary device for people to enter the tank car for maintenance and cleaning operation, the manhole of the traditional highway tank car does not have an anti-explosion function, and the tank body can burst due to overlarge pressure in the tank in emergency, so that serious accidents can be caused; and the manhole cover is cumbersome to open and inconvenient to open, resulting in lower use reliability.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a conveniently open, improve and use the reliability to have explosion-proof function, improve the highway tank car manhole of security.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a manhole of a road tank car comprises a neck ring, a connecting cover and a plurality of fastening bolt components, wherein the connecting cover is arranged on the neck ring through the plurality of fastening bolt components; still include explosion-proof cover, crossbeam, apron and stop device, the top intercommunication of connecting the lid is provided with the go-between, explosion-proof cover lid is adorned on the go-between, and the top left side of connecting the lid is provided with the coupling hook, the right-hand member of crossbeam is articulated with the top right side of connecting the lid, the left end of apron is articulated with the left end of crossbeam, and the right-hand member and the crossbeam of apron pass through stop device connects, and the left end of apron is provided with and coupling hook complex coupling assembling, and the bottom of explosion-proof cover is provided with multiunit compression spring, multiunit compression spring's bottom all pastes tightly with explosion-proof cover's top, stop device's top is provided with the handle.

Preferably, the middle part of the bottom end of the explosion-proof cover is communicated with a sealing cover, an annular groove is formed in the outer side of the bottom end of the explosion-proof cover, a sealing ring is arranged in the annular groove, and the top end of the connecting ring extends into the annular groove and is tightly attached to the bottom end of the sealing ring.

Preferably, still include positioning bolt, go up lock nut and lock nut down, the top of explosion-proof cover is provided with and seals the communicating first through-hole of lid, be provided with the second through-hole that link up from top to bottom on the crossbeam, second through-hole and first through-hole are passed to positioning bolt's bottom and are stretched into to sealed lid in, go up lock nut and lock nut down and all pass through threaded connection with positioning bolt, the bottom of going up lock nut pastes tightly with the top of explosion-proof cover, and lock nut is located sealed lid down and the top of lock nut pastes tightly with the bottom of explosion-proof cover down.

Preferably, be provided with torsional spring and baffle on the coupling hook, the baffle passes through the torsional spring is installed on the coupling hook, coupling assembling is the peg, the one end of peg and the left end of apron are through pivot rotatable coupling, and the other end of peg hangs and adorns in the coupling hook.

Preferably, the limiting device comprises a limiting bolt, a limiting ring and a limiting spring, the right end of the cross beam is provided with a through hole which is communicated up and down, the bottom end of the limiting bolt penetrates through the through hole to the lower portion of the cross beam, the limiting spring and the limiting ring are both sleeved on the outer side of the limiting bolt, the limiting ring is fixedly connected with the limiting bolt, the top end and the bottom end of the limiting spring are respectively attached to the bottom end of the cross beam and the top end of the limiting ring, the top end of the limiting bolt is fixedly connected with the handle, and the bottom end of the handle is attached to the top end of the cover plate.

(III) advantageous effects

Compared with the prior art, the utility model provides a highway tank car manhole possesses following beneficial effect:

1. in the manhole of the road tank car, when the air pressure in the tank is increased, the anti-explosion cover can be jacked up through the pressure difference, and the anti-explosion cover is automatically opened to release pressure, so that the manhole has an anti-explosion function and ensures the safety of the tank body;

2. this highway tank car manhole when needs open, opens the apron and overturns, for coupling assembling provides flexible volume and makes coupling assembling and hookup break away from, can open apron and crossbeam, removes compression spring to the restriction of explosion-proof cover, can open the explosion-proof cover, conveniently opens, improves and uses the reliability, makes coupling assembling can not break away from with the hookup through compression spring at ordinary times, guarantees the leakproofness of explosion-proof cover.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic diagram of the explosion structure of the present invention;

fig. 3 is a left side view structure diagram of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3 according to the present invention;

fig. 5 is a schematic view of the present invention at a portion B of fig. 4;

fig. 6 is a schematic perspective view of another angle of the present invention;

FIG. 7 is a schematic view of the structure of the limiting device and the handle according to the present invention;

in the drawings, the reference numbers: 1. a collar; 2. a connecting cover; 3. fastening the bolt assembly; 4. an explosion-proof cover; 5. a cross beam; 6. a cover plate; 7. a limiting device; 8. a connecting ring; 9. a connecting hook; 10. a connecting assembly; 11. a compression spring; 12. a handle; 13. a sealing cover; 14. a seal ring; 15. positioning the bolt; 16. locking the nut; 17. a lower lock nut; 18. a baffle plate; 19. a limit bolt; 20. a limiting ring; 21. and a limiting spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the manhole of the road tank car of the present invention comprises a collar 1, a connecting cover 2 and a plurality of fastening bolt assemblies 3, wherein the connecting cover 2 is mounted on the collar 1 through the plurality of fastening bolt assemblies 3; the anti-explosion cover is characterized by further comprising an anti-explosion cover 4, a cross beam 5, a cover plate 6 and a limiting device 7, wherein the top end of the connecting cover 2 is communicated with a connecting ring 8, the anti-explosion cover 4 is covered on the connecting ring 8, the left side of the top end of the connecting cover 2 is provided with a connecting hook 9, the right end of the cross beam 5 is hinged with the right side of the top end of the connecting cover 2, the left end of the cover plate 6 is hinged with the left end of the cross beam 5, the right end of the cover plate 6 is connected with the cross beam 5 through the limiting device 7, the left end of the cover plate 6 is provided with a connecting assembly 10 matched with the connecting hook 9, the bottom end of the anti-explosion cover 4 is provided with a plurality of groups of compression springs 11, the bottom ends of the; when the air pressure in the tank is increased, the anti-explosion cover 4 can be jacked up through the pressure difference, the anti-explosion cover 4 is automatically opened to release pressure, the anti-explosion function is realized, and the safety of the tank body is ensured; when needing to open, open apron 6 and overturn, for coupling assembling 10 provides flexible volume and makes coupling assembling 10 and hookup 9 break away from, can open apron 6 and crossbeam 5, remove hold-down spring 11 to the restriction of explosion-proof cover 4, can open explosion-proof cover 4, conveniently open, improve the use reliability, make coupling assembling 10 can not break away from with hookup 9 through hold-down spring 11 at ordinary times, guarantee the leakproofness of explosion-proof cover 4.

The utility model discloses a manhole of a highway tank car, the bottom middle part of the explosion-proof cover 4 is communicated with and provided with a sealing cover 13, the bottom outside of the explosion-proof cover 4 is provided with a ring channel, and a sealing ring 14 is arranged in the ring channel, the top end of the connecting ring 8 extends into the ring channel and is tightly attached to the bottom end of the sealing ring 14; the sealing performance between the explosion-proof cover 4 and the connecting ring 8 is improved through the sealing ring 14, the explosion-proof cover further comprises a positioning bolt 15, an upper locking nut 16 and a lower locking nut 17, a first through hole communicated with the sealing cover 13 is formed in the top end of the explosion-proof cover 4, a second through hole which is communicated up and down is formed in the cross beam 5, the bottom end of the positioning bolt 15 penetrates through the second through hole and the first through hole and extends into the sealing cover 13, the upper locking nut 16 and the lower locking nut 17 are both in threaded connection with the positioning bolt 15, the bottom end of the upper locking nut 16 is tightly attached to the top end of the explosion-proof cover 4, the lower locking nut 17 is located in the sealing cover 13, the top end of the lower locking nut 17 is tightly attached to the bottom end of the explosion-proof cover 4, the positioning effect is achieved through the positioning bolt 15, the connecting ring 8 is inserted into the annular groove, the explosion-proof cover 4 can be tightly covered again after pressure, the upper locking nut 16 can be unscrewed to facilitate the positioning bolt 15 to carry the explosion-proof cover 4 and open the explosion-proof cover 4.

The utility model discloses a manhole of a road tank car, the connecting hook 9 is provided with a torsional spring and a baffle 18, the baffle 18 is installed on the connecting hook 9 through the torsional spring, the connecting component 10 is a hanging rod, one end of the hanging rod is rotatably connected with the left end of the cover plate 6 through a rotating shaft, and the other end of the hanging rod is hung in the connecting hook 9; the connecting component 10 is prevented from being separated from the connecting hook 9 when the explosion-proof cover 4 is opened by pressure relief.

The utility model discloses a manhole of a road tank car, the stop device 7 includes a stop bolt 19, a stop ring 20 and a stop spring 21, the right-hand member of the crossbeam 5 is provided with a perforation that is run through from top to bottom, the bottom of the stop bolt 19 passes through the perforation to the below of the crossbeam 5, the stop spring 21 and the stop ring 20 are all sleeved on the outside of the stop bolt 19, and the stop ring 20 is fixedly connected with the stop bolt 19, the top and the bottom of the stop spring 21 are respectively attached to the bottom of the crossbeam 5 and the top of the stop ring 20, the top of the stop bolt 19 is fixedly connected with a handle 12, and the bottom of the handle 12 is attached to the top of the cover plate 6; prevent under non-emergency, because vibration etc. cause explosion-proof cover 4 mistake to open, through spacing spring 21, spacing ring 20 and handle 12's cooperation for apron 6 pastes tightly with crossbeam 5, and handle 12 that rotatory handle 12 made no longer carries on spacingly to apron 6, can overturn apron 6, can provide certain flexible volume for coupling assembling 10 after overturning apron 6, conveniently breaks away from coupling assembling 10 and coupling hook 9.

When the manhole of the highway tank car is used, when the air pressure in the tank is increased, the anti-explosion cover 4 can be jacked up through the pressure difference, the anti-explosion cover 4 is automatically opened to release pressure, and the manhole has an anti-explosion function and ensures the safety of the tank body; when the explosion-proof cover is required to be opened, the cover plate 6 is opened and turned over, the expansion amount is provided for the connecting assembly 10, the connecting assembly 10 is separated from the connecting hook 9, the cover plate 6 and the cross beam 5 can be opened, the limit of the compression spring 11 on the explosion-proof cover 4 is removed, the explosion-proof cover 4 can be opened, the opening is convenient, the use reliability is improved, the compression spring 11 is used for preventing the connecting assembly 10 from being separated from the connecting hook 9 at ordinary times, the sealing performance of the explosion-proof cover 4 is ensured, the positioning effect is achieved through the positioning bolt 15, the connecting ring 8 is inserted into the annular groove in a matching manner, the explosion-proof cover 4 can be tightly covered again after being decompressed, the sealing performance is ensured, the limiting device 7 is used for preventing the explosion-proof cover 4 from being opened by mistake due to vibration and the like under the non-emergency condition, the cover plate 6 is tightly attached to the cross beam 5 through the matching, the side can overturn apron 6, can provide certain flexible volume for coupling assembling 10 after overturning apron 6, conveniently breaks away from coupling assembling 10 and hookup 9.

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

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A manhole of a road tank car comprises a neck ring (1), a connecting cover (2) and a plurality of fastening bolt components (3), wherein the connecting cover (2) is arranged on the neck ring (1) through the fastening bolt components (3); it is characterized by also comprising an explosion-proof cover (4), a cross beam (5), a cover plate (6) and a limiting device (7), the top end of the connecting cover (2) is communicated with a connecting ring (8), the explosion-proof cover (4) is covered on the connecting ring (8), the left side of the top end of the connecting cover (2) is provided with a connecting hook (9), the right end of the cross beam (5) is hinged with the right side of the top end of the connecting cover (2), the left end of the cover plate (6) is hinged with the left end of the cross beam (5), the right end of the cover plate (6) is connected with the cross beam (5) through the limiting device (7), the left end of the cover plate (6) is provided with a connecting component (10) matched with the connecting hook (9), the bottom end of the explosion-proof cover (4) is provided with a plurality of groups of compression springs (11), the bottom ends of the multiple groups of compression springs (11) are tightly attached to the top end of the explosion-proof cover (4), and the top end of the limiting device (7) is provided with a handle (12).

2. The manhole of the road tank car as claimed in claim 1, wherein a sealing cover (13) is communicated with the middle of the bottom end of the explosion-proof cover (4), an annular groove is formed in the outer side of the bottom end of the explosion-proof cover (4), a sealing ring (14) is arranged in the annular groove, and the top end of the connecting ring (8) extends into the annular groove and is tightly attached to the bottom end of the sealing ring (14).

3. The manhole of the highway tank car as claimed in claim 2, further comprising a positioning bolt (15), an upper locking nut (16) and a lower locking nut (17), wherein the top end of the explosion-proof cover (4) is provided with a first through hole communicated with the sealing cover (13), the cross beam (5) is provided with a second through hole which is communicated up and down, the bottom end of the positioning bolt (15) penetrates through the second through hole and the first through hole and extends into the sealing cover (13), the upper locking nut (16) and the lower locking nut (17) are both in threaded connection with the positioning bolt (15), the bottom end of the upper locking nut (16) is attached to the top end of the explosion-proof cover (4), the lower locking nut (17) is located in the sealing cover (13) and the top end of the lower locking nut (17) is attached to the bottom end of the explosion-proof cover (4).

4. The manhole of the road tank car according to claim 1, wherein the connecting hook (9) is provided with a torsion spring and a baffle (18), the baffle (18) is mounted on the connecting hook (9) through the torsion spring, the connecting assembly (10) is a hanging rod, one end of the hanging rod is rotatably connected with the left end of the cover plate (6) through a rotating shaft, and the other end of the hanging rod is hung in the connecting hook (9).

5. The manhole of the road tank car as claimed in claim 1, wherein the limiting device (7) comprises a limiting bolt (19), a limiting ring (20) and a limiting spring (21), the right end of the cross beam (5) is provided with a through hole which penetrates up and down, the bottom end of the limiting bolt (19) penetrates through the through hole to the lower side of the cross beam (5), the limiting spring (21) and the limiting ring (20) are both sleeved on the outer side of the limiting bolt (19), the limiting ring (20) is fixedly connected with the limiting bolt (19), the top end and the bottom end of the limiting spring (21) are respectively attached to the bottom end of the cross beam (5) and the top end of the limiting ring (20), the top end of the limiting bolt (19) is fixedly connected with the handle (12), and the bottom end of the handle (12) is attached to the top end of the cover plate (6).